Glasscock County, Texas
Glasscock County Courthouse in Garden City
Location in the state of Texas
Texas's location in the U.S.
Founded	1893
Named for	George Washington Glasscock
Seat	Garden City
Largest community	Garden City
Area
• Total	901 sq mi (2,334 km2)
• Land	900 sq mi (2,331 km2)
• Water	0.9 sq mi (2 km2), 0.1%
Population
• (2010)	1,226
• Density	1.4/sq mi (1/km²)
Time zone	Central: UTC-6/-5
Website	www.co.glasscock.tx.us
Footnotes: For infobox source see

County Well Data

Well ID	Operator Name	Well Type	Lease
42-173-00002	Hunt Oil Company	Oil	06279
42-173-00003	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00004	STEPHENS, AUTRY C.	Oil	07289
42-173-00006	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00007	GLOSSOP, ROBERT L.	Oil	06794
42-173-00008	GLOSSOP, ROBERT L.	Oil	06794
42-173-00009	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00010	STEPHENS, AUTRY C.	Oil	23790
42-173-00012	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00013	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00014	STEPHENS, AUTRY C.	Oil	23790
42-173-00015	ARCO OIL & GAS CO.	Oil
42-173-00016	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00017	STEPHENS, AUTRY C.	Oil	23790
42-173-00018	ENDEAVOR ENERGY RESOURCES L.P.	Oil	31929
42-173-00019	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00020	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00021	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00025	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00026	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00029	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00030	Apache Corporation	Oil
42-173-00032	Apache Corporation	Oil	06297
42-173-00034
42-173-00036	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00037	BRUNO, EARL R.	Oil
42-173-00038
42-173-00039
42-173-00043	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-173-00044	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-173-00045	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-173-00046	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-173-00047	Amerada Hess Corporation	Oil
42-173-00049	Amerada Hess Corporation	Oil	22575
42-173-00050	Amerada Hess Corporation	Oil
42-173-00051	Amerada Hess Corporation	Oil	22575
42-173-00052	Amerada Hess Corporation	Oil	41062
42-173-00053	Amerada Hess Corporation	Oil	22575
42-173-00054	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06264
42-173-00055	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06264
42-173-00056	ENDEAVOR ENERGY RESOURCES L.P.	Oil	26062
42-173-00057	Amerada Hess Corporation	Oil	26330
42-173-00060	PIONEER NATURAL RES. USA, INC.	Oil	06269
42-173-00061	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00062	PIONEER NATURAL RES. USA, INC.	Oil	06269
42-173-00063	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00065	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00068	MGM OIL & GAS COMPANY	Oil	48124
42-173-00070	STEPHENS, AUTRY C.	Oil	07154
42-173-00071	STEPHENS, AUTRY C.	Oil	08135
42-173-00072	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00073	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00074	STEPHENS, AUTRY C.	Oil	07154
42-173-00075	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00076	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00077	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00078	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00079	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00080	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00081	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00082	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00083	ASHLAND OIL & REFG. CO.	Oil	34766
42-173-00084	PIONEER NATURAL RES. USA, INC.	Oil	06277
42-173-00085	PIONEER NATURAL RES. USA, INC.	Oil	06277
42-173-00086	PIONEER NATURAL RES. USA, INC.	Oil	06277
42-173-00087	PIONEER NATURAL RES. USA, INC.	Oil	06278
42-173-00088	PIONEER NATURAL RES. USA, INC.	Oil	06278
42-173-00089	Hunt Oil Company	Oil	06279
42-173-00090	PIONEER NATURAL RES. USA, INC.	Oil	06278
42-173-00091	Hunt Oil Company	Oil	06279
42-173-00092	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00093	Hunt Oil Company	Oil	06279
42-173-00094	PIONEER NATURAL RES. USA, INC.	Oil	06278
42-173-00095	PIONEER NATURAL RES. USA, INC.	Oil	06278
42-173-00096	Hunt Oil Company	Oil
42-173-00097	PIONEER NATURAL RES. USA, INC.	Oil	06278
42-173-00098	PIONEER NATURAL RES. USA, INC.	Oil	06286
42-173-00099	PIONEER NATURAL RES. USA, INC.	Oil	06286
42-173-00100	PIONEER NATURAL RES. USA, INC.	Oil	06286
42-173-00101	PIONEER NATURAL RES. USA, INC.	Oil	06286
42-173-00102	Petro-Lewis Corporation	Oil
42-173-00103	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34616
42-173-00104	Graham Royalty, Ltd.	Oil
42-173-00109	ARCO PERMIAN	Oil
42-173-00112
42-173-00114	ATLANTIC RICHFIELD CO.	Oil	23499
42-173-00115	ATLANTIC RICHFIELD CO.	Oil	23499
42-173-00116	Apache Corporation	Oil	06293
42-173-00117	Apache Corporation	Oil	06297
42-173-00118	ARCO OIL & GAS CO.	Oil	23500
42-173-00119	ARCO OIL & GAS CO.	Oil	30640
42-173-00120	ARCO OIL & GAS CO.	Oil	30640
42-173-00121	ARCO OIL & GAS CO.	Oil	30640
42-173-00122	Apache Corporation	Oil	06300
42-173-00123	Apache Corporation	Oil	24901
42-173-00124	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00125	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00126	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00127	Apache Corporation	Oil	49949
42-173-00128	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00129	Apache Corporation	Oil	24845
42-173-00130	Apache Corporation	Oil	24845
42-173-00131	ATLANTIC RICHFIELD CO.	Oil	24009
42-173-00132	Apache Corporation	Oil	06311
42-173-00133	Apache Corporation	Oil	23998
42-173-00134	Apache Corporation	Oil	06309
42-173-00135	Apache Corporation	Oil	23998
42-173-00136	Apache Corporation	Oil	23772
42-173-00137	Apache Corporation	Oil	06309
42-173-00138	Apache Corporation	Oil	23648
42-173-00139	Apache Corporation	Oil
42-173-00140	Apache Corporation	Oil	23772
42-173-00144	STEPHENS, AUTRY C.	Oil	15400
42-173-00145	PIONEER NATURAL RES. USA, INC.	Oil	24518
42-173-00146	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00147	BARNHART CO.	Oil	06508
42-173-00148	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00151	CASS OIL COMPANY	Oil
42-173-00152	CASS, FRANK	Oil	34631
42-173-00153	ROBERTS & HAMMACK, INC.	Oil	06634
42-173-00154	ROBERTS & HAMMACK, INC.	Oil	06634
42-173-00155	WESTLAND OIL DEVELOPMENT CORP.	Oil	06538
42-173-00158	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06329
42-173-00160	CONCHO OILFIELD SERV & OPER CO.	Oil	24305
42-173-00161	CONCHO OILFIELD SERV & OPER CO.	Oil	24305
42-173-00162	CHEVRON OIL COMPANY	Oil	41062
42-173-00163	CHEVRON OIL COMPANY	Oil	22575
42-173-00170	CHEVRON OIL COMPANY	Oil	41062
42-173-00172	CHEVRON OIL COMPANY	Oil	41062
42-173-00173	HOUSTON DOMESTIC OIL COMPANY	Oil
42-173-00181	Basic Energy Services, L.P.	Oil
42-173-00182	Getty Oil Co.	Oil	22575
42-173-00183	MGM OIL & GAS COMPANY	Oil
42-173-00184	MGM OIL & GAS COMPANY	Oil
42-173-00185	MGM OIL & GAS COMPANY	Oil	48123
42-173-00186	MGM OIL & GAS COMPANY	Oil	48123
42-173-00187	MGM OIL & GAS COMPANY	Oil	48123
42-173-00188	CONOCOPHILLIPS COMPANY	Oil	41236
42-173-00189	CONOCOPHILLIPS COMPANY	Oil
42-173-00190	CONOCOPHILLIPS COMPANY	Oil	02697
42-173-00191	CONOCOPHILLIPS COMPANY	Oil	02697
42-173-00193	Apache Corporation	Oil	02698
42-173-00194	Apache Corporation	Oil	02698
42-173-00195	Apache Corporation	Oil	46360
42-173-00196	Apache Corporation	Oil	46360
42-173-00197	Apache Corporation	Oil	02698
42-173-00199	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-00200	CONOCOPHILLIPS COMPANY	Oil	41246
42-173-00201	CONOCOPHILLIPS COMPANY	Oil	41246
42-173-00204	Apache Corporation	Oil
42-173-00205	Apache Corporation	Oil	02702
42-173-00206	Apache Corporation	Oil
42-173-00207	Apache Corporation	Oil	46386
42-173-00208	Apache Corporation	Oil	46386
42-173-00210	Apache Corporation	Oil	46386
42-173-00211	Apache Corporation	Oil	46386
42-173-00212	Apache Corporation	Oil	46386
42-173-00216	CONOCOPHILLIPS COMPANY	Oil
42-173-00219	CONOCOPHILLIPS COMPANY	Oil	02704
42-173-00224	CONOCOPHILLIPS COMPANY	Oil	20060
42-173-00226	CONOCOPHILLIPS COMPANY	Oil	20060
42-173-00227	CONOCOPHILLIPS COMPANY	Oil	41256
42-173-00232	CONOCOPHILLIPS COMPANY	Oil
42-173-00235	CONOCOPHILLIPS COMPANY	Oil	20060
42-173-00239	CONOCOPHILLIPS COMPANY	Oil	20060
42-173-00249	CONOCOPHILLIPS COMPANY	Oil	20060
42-173-00250	CONOCOPHILLIPS COMPANY	Oil	20060
42-173-00251	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00252	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00253	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00258	KING ENERGY RESOURCES	Oil	15584
42-173-00259	KING ENERGY RESOURCES	Oil	15584
42-173-00263	KING ENERGY RESOURCES	Oil	16653
42-173-00265	Grace Petroleum Corp.	Oil
42-173-00267	KING ENERGY RESOURCES	Oil	16653
42-173-00268	RICHMOND DRILLING COMPANY, INC.	Oil	48042
42-173-00269	RICHMOND DRILLING COMPANY, INC.	Oil
42-173-00281	CORONADO MINERALS, LLC	Oil
42-173-00283	Basic Energy Services, L.P.	Oil	02751
42-173-00285	DUNCAN DRILLING CO.	Oil	22575
42-173-00286	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-00287	DUNCAN DRILLING CO.	Oil	41062
42-173-00288	DUNCAN DRILLING CO.	Oil	22575
42-173-00296	ROBERTS & HAMMACK, INC.	Oil	06557
42-173-00305	WHEELCO OIL & GAS, INC.	Oil
42-173-00308	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00310	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00311	CROWNQUEST OPERATING, LLC	Oil	25586
42-173-00313	STEPHENS, AUTRY C.	Oil	07445
42-173-00314	PIONEER NATURAL RES. USA, INC.	Oil	24490
42-173-00315
42-173-00316	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00317	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00318	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00319	STEPHENS, AUTRY C.	Oil	07445
42-173-00323
42-173-00324	MGM OIL & GAS COMPANY	Oil
42-173-00325	MGM OIL & GAS COMPANY	Oil
42-173-00327	MGM OIL & GAS COMPANY	Oil
42-173-00328	VISION NATURAL RESOURCES, LP	Oil	02746
42-173-00332
42-173-00340
42-173-00342	GOLDEN SPECIALTIES OIL & GAS	Oil	48358
42-173-00345
42-173-00348	HENDON, WILLIAM E., JR.
42-173-00350	CASS-STEPHENS	Oil	23368
42-173-00357	ROBERTSON RESOURCES, INC.	Oil	17120
42-173-00368	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06387
42-173-00369	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06387
42-173-00372	Hunt Oil Company	Oil	08424
42-173-00373	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06521
42-173-00374	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06521
42-173-00376	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00377	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00378	WASH, ROBERT C. INC.	Oil	47933
42-173-00379	WASH, ROBERT C. INC.	Oil	47933
42-173-00380	WASH, ROBERT C. INC.	Oil	02738
42-173-00381	PIONEER NATURAL RES. USA, INC.	Oil	06391
42-173-00382	PIONEER NATURAL RES. USA, INC.	Oil	06391
42-173-00387	WASH, ROBERT C. INC.	Oil	02738
42-173-00390	WOOD & LOCKER, INC.	Oil
42-173-00395
42-173-00396	Hunt Oil Company	Oil	14594
42-173-00397	Hunt Oil Company	Oil	06392
42-173-00398	Hunt Oil Company	Oil	14594
42-173-00399	Hunt Oil Company	Oil	06392
42-173-00400	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00401	Hunt Oil Company	Oil	15630
42-173-00402	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00403	HANLEY PETROLEUM INC.	Oil	12898
42-173-00404	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00405	HANLEY PETROLEUM INC.	Oil	15400
42-173-00406	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00407	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00408	Hunt Oil Company	Oil	06395
42-173-00409	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00410	Hunt Oil Company	Oil	06395
42-173-00411	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00412	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00413	PED OIL CORPORATION	Oil	07111
42-173-00414	Hunt Oil Company	Oil	15569
42-173-00415	Hunt Oil Company	Oil	15569
42-173-00416	ENDEAVOR ENERGY RESOURCES L.P.	Oil	09904
42-173-00417	ENDEAVOR ENERGY RESOURCES L.P.	Oil	09904
42-173-00418	ENDEAVOR ENERGY RESOURCES L.P.	Oil	08826
42-173-00419	ENDEAVOR ENERGY RESOURCES L.P.	Oil	08826
42-173-00420	Hunt Oil Company	Oil	08424
42-173-00421	Hunt Oil Company	Oil	09862
42-173-00422	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00423	Hunt Oil Company	Oil	08487
42-173-00424	Hunt Oil Company	Oil	08487
42-173-00425	Hunt Oil Company	Oil	06399
42-173-00426	Hunt Oil Company	Oil
42-173-00427	Hunt Oil Company	Oil
42-173-00428	HANLEY PETROLEUM INC.	Oil	31267
42-173-00429	Hunt Oil Company	Oil	06399
42-173-00430	Hunt Oil Company	Oil	06400
42-173-00431	Hunt Oil Company	Oil	06401
42-173-00432	Hunt Oil Company	Oil	06400
42-173-00433	Hunt Oil Company	Oil	06401
42-173-00434	HANLEY PETROLEUM INC.	Oil	07097
42-173-00435	Hunt Oil Company	Oil	06400
42-173-00436	Hunt Oil Company	Oil	06401
42-173-00437	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06404
42-173-00438	Hunt Oil Company	Oil	08908
42-173-00439	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06404
42-173-00440	Hunt Oil Company	Oil	08908
42-173-00441	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06404
42-173-00442	CONCHO RESOURCES INC.	Oil	06404
42-173-00450	HENDRICKSON, A. N.	Oil
42-173-00458	HANLEY PETROLEUM INC.	Oil	07097
42-173-00459	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00461	Monsanto Company	Oil
42-173-00462	Monsanto Company	Oil
42-173-00463	Monsanto Company	Oil	22575
42-173-00464	Monsanto Company	Oil	22575
42-173-00465	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00466	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00468
42-173-00469	ADOBE OIL CO.	Oil
42-173-00470	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06410
42-173-00471	COG OPERATING LLC	Oil	06409
42-173-00472	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06410
42-173-00473	PHILLIPS WATER HAULING, INC.	Oil	44742
42-173-00474	DIAMONDBACK E&P LLC	Oil	42289
42-173-00475	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06412
42-173-00477	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06413
42-173-00478	DE3 OPERATING LLC	Oil	06420
42-173-00480	DE3 OPERATING LLC	Oil
42-173-00481	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00482	PIONEER NATURAL RES. USA, INC.	Oil	06427
42-173-00483	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00493	TERRA RESOURCES, INC.	Oil
42-173-00496	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00497	ENDEAVOR ENERGY RESOURCES L.P.	Oil	29148
42-173-00499	CIMAREX ENERGY CO. OF COLORADO	Oil	42224
42-173-00500	CIMAREX ENERGY CO. OF COLORADO	Oil	42224
42-173-00501	CIMAREX ENERGY CO. OF COLORADO	Oil	42224
42-173-00503	Monsanto Company	Oil
42-173-00504	Monsanto Company	Oil	41062
42-173-00505	Monsanto Company	Oil	41062
42-173-00506	ORYX ENERGY COMPANY	Oil	41062
42-173-00507	Monsanto Company	Oil
42-173-00508	Monsanto Company	Oil	41062
42-173-00509	Monsanto Company	Oil	22575
42-173-00510	Monsanto Company	Oil
42-173-00511	Basic Energy Services, L.P.	Oil
42-173-00512	Basic Energy Services, L.P.	Oil
42-173-00513	Basic Energy Services, L.P.	Oil	02751
42-173-00517
42-173-00518	MGM OIL & GAS COMPANY	Oil	51473
42-173-00519	BROCKETT, C. H.	Gas
42-173-00520	Monsanto Company	Oil	22575
42-173-00521	Monsanto Company	Oil
42-173-00522	Monsanto Company	Oil	41062
42-173-00523	Monsanto Company	Oil	41062
42-173-00524	Monsanto Company	Oil	41062
42-173-00525	Monsanto Company	Oil	41062
42-173-00526	Monsanto Company	Oil
42-173-00527	Monsanto Company	Oil	22575
42-173-00528	Monsanto Company	Oil	41062
42-173-00529	Monsanto Company	Oil
42-173-00530	Monsanto Company	Oil	41062
42-173-00531	Monsanto Company	Oil	41062
42-173-00532	Monsanto Company	Oil
42-173-00533	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36914
42-173-00534	Monsanto Company	Oil
42-173-00535	Monsanto Company	Oil	41062
42-173-00536	Monsanto Company	Oil	41062
42-173-00538	FORSAN OIL WELL SERVICE, INC.	Oil
42-173-00546	Monsanto Company	Oil
42-173-00548	5H OIL CO., LLC	Oil	41317
42-173-00561	LYNX OPERATING CO., INC.	Oil	06471
42-173-00562	ROBERTS & HAMMACK, INC.	Oil	06568
42-173-00565	STEPHENS, AUTRY C.	Oil	06596
42-173-00566	STEPHENS, AUTRY C.	Oil	06596
42-173-00567	Hunt Oil Company	Oil	06596
42-173-00568	Hunt Oil Company	Oil	06596
42-173-00573	MGM OIL & GAS COMPANY	Oil	48124
42-173-00574	MGM OIL & GAS COMPANY	Oil	48124
42-173-00588	Getty Oil Co.	Oil	21492
42-173-00589	Citation Oil & Gas Corp.	Oil	06768
42-173-00590	Citation Oil & Gas Corp.	Oil	06768
42-173-00591	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00592	STEPHENS, AUTRY C.	Oil	34763
42-173-00593	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00594	ODESSA EXPLORATION, INC.	Oil	13040
42-173-00595	Citation Oil & Gas Corp.	Oil	06775
42-173-00596	STEPHENS, AUTRY C.	Oil	34764
42-173-00597	Citation Oil & Gas Corp.	Oil	06908
42-173-00598	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00599	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00600	Citation Oil & Gas Corp.	Oil	06908
42-173-00603	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00604	MGM OIL & GAS COMPANY	Oil	02804
42-173-00606	MGM OIL & GAS COMPANY	Oil	02804
42-173-00607	CORONADO MINERALS, LLC	Oil	02807
42-173-00608	CORONADO MINERALS, LLC	Oil
42-173-00609	CORONADO MINERALS, LLC	Oil	41110
42-173-00610	CORONADO MINERALS, LLC	Oil
42-173-00611	CORONADO MINERALS, LLC	Oil
42-173-00612	CORONADO MINERALS, LLC	Oil	41113
42-173-00613	CORONADO MINERALS, LLC	Oil	02808
42-173-00615	Hunt Oil Company	Oil	06392
42-173-00616	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00622	Hunt Oil Company	Oil	06478
42-173-00631	GOLDEN SPECIALTIES OIL & GAS	Oil	48358
42-173-00633	PIONEER NATURAL RES. USA, INC.	Oil	14741
42-173-00634	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00635	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00636	STEPHENS, AUTRY C.	Oil	24925
42-173-00637	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00638	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00640	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00641	PIONEER NATURAL RES. USA, INC.	Oil	06486
42-173-00644	PIONEER NATURAL RES. USA, INC.	Oil	06486
42-173-00645	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00647	PIONEER NATURAL RES. USA, INC.	Oil	06486
42-173-00648	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00650	PIONEER NATURAL RES. USA, INC.	Oil	31701
42-173-00654	Hunt Oil Company	Oil
42-173-00656	Parker & Parsley Development Co.	Oil	21807
42-173-00659	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00660	ROBERTS & HAMMACK, INC.	Oil	06525
42-173-00661	ROBERTS & HAMMACK, INC.	Oil	06525
42-173-00662	ROBERTS & HAMMACK, INC.	Oil	06525
42-173-00673	COSTA RESOURCES, INC.	Oil
42-173-00674	Monsanto Company	Oil	22575
42-173-00675	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-00685	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00686	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00687	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00688	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00690	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-173-00691	RUSSELL, HUBBARD J., ETAL	Gas	020886
42-173-00692	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-173-00693	RUSSELL, HUBBARD J., ETAL	Gas	020887
42-173-00694	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-173-00696	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00698	MGM OIL & GAS COMPANY	Oil	02804
42-173-00699	MGM OIL & GAS COMPANY	Oil	47940
42-173-00700	MGM OIL & GAS COMPANY	Oil	47940
42-173-00702	CIMAREX ENERGY CO. OF COLORADO	Oil	42209
42-173-00703	CIMAREX ENERGY CO. OF COLORADO	Oil	42224
42-173-00704	CIMAREX ENERGY CO. OF COLORADO	Oil	42224
42-173-00705	CIMAREX ENERGY CO. OF COLORADO	Oil	42209
42-173-00706
42-173-00707	CIMAREX ENERGY CO. OF COLORADO	Oil	42209
42-173-00708	CIMAREX ENERGY CO. OF COLORADO	Oil	02809
42-173-00709	CIMAREX ENERGY CO. OF COLORADO	Oil	02809
42-173-00710	CIMAREX ENERGY CO. OF COLORADO	Oil	42209
42-173-00714
42-173-00715
42-173-00716	ROVER PETROLEUM OPERATING, LLC	Oil	17996
42-173-00717	ESTORIL PRODUCING CORPORATION	Oil	26257
42-173-00719	Shell Oil Company	Oil
42-173-00720	Shell Oil Company	Oil	22575
42-173-00721	Shell Oil Company	Oil	22575
42-173-00722	Shell Oil Company	Oil
42-173-00723	Shell Oil Company	Oil
42-173-00724	Shell Oil Company	Oil	22575
42-173-00725	Shell Oil Company	Oil	22575
42-173-00726	Shell Oil Company	Oil	41062
42-173-00727	MARSHCO PRODUCTION LLC	Oil	29409
42-173-00729
42-173-00733	Shell Oil Company	Oil	22575
42-173-00734	Shell Oil Company	Oil
42-173-00735	Shell Oil Company	Oil	41062
42-173-00736	Shell Oil Company	Oil	22575
42-173-00737
42-173-00738	Shell Oil Company	Oil	22575
42-173-00739	Shell Oil Company	Oil	41062
42-173-00740	Shell Oil Company	Oil	41062
42-173-00741	Shell Oil Company	Oil	22575
42-173-00742	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21785
42-173-00746	Getty Oil Co.	Oil	22575
42-173-00747	Getty Oil Co.	Oil	22575
42-173-00748	Getty Oil Co.	Oil	41062
42-173-00749	Getty Oil Co.	Oil
42-173-00750	Getty Oil Co.	Oil	22575
42-173-00751	Getty Oil Co.	Oil	41062
42-173-00752	Getty Oil Co.	Oil
42-173-00753	Getty Oil Co.	Oil	41062
42-173-00754	Getty Oil Co.	Oil	22575
42-173-00755	Getty Oil Co.	Oil	41062
42-173-00756	Getty Oil Co.	Oil
42-173-00757	Getty Oil Co.	Oil
42-173-00758	Getty Oil Co.	Oil	22575
42-173-00764	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00765	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00766	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00767	STEPHENS, AUTRY C.	Oil	07133
42-173-00768	STEPHENS, AUTRY C.	Oil	07133
42-173-00769	STEPHENS, AUTRY C.	Oil	07133
42-173-00770	CJ ENERGY, LLC	Oil	37852
42-173-00771	STEPHENS, AUTRY C.	Oil	07133
42-173-00772	STEPHENS, AUTRY C.	Oil	07133
42-173-00773	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00776	Apache Corporation	Oil	06530
42-173-00777	Apache Corporation	Oil	23055
42-173-00778	Apache Corporation	Oil
42-173-00779	Apache Corporation	Oil	23055
42-173-00780	Apache Corporation	Oil	06530
42-173-00781	Apache Corporation	Oil
42-173-00782	Apache Corporation	Oil	49950
42-173-00783	Apache Corporation	Oil	23055
42-173-00787	ATLANTIC RICHFIELD CO.	Oil	33003
42-173-00789	STEPHENS, AUTRY C.	Oil	33531
42-173-00791	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-173-00792	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00793	Texaco Inc.
42-173-00794	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33531
42-173-00795	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33531
42-173-00797	Monsanto Company	Oil
42-173-00798	Monsanto Company	Oil	41062
42-173-00799	Monsanto Company	Oil	41062
42-173-00800	Monsanto Company	Oil
42-173-00801	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00804	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06617
42-173-00805	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06829
42-173-00806	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06617
42-173-00807	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06604
42-173-00808	PARKER & PARSLEY DEVELOPMENT L.P	Oil
42-173-00809
42-173-00810	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00811	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00812	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00813	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00814	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00815	TEX/CON OIL & GAS COMPANY	Oil	07135
42-173-00816	TEX/CON OIL & GAS COMPANY	Oil	08044
42-173-00817	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00818	STANDARD OIL PRODUCTION COMPANY	Oil	12550
42-173-00819	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00820	MIDPAR L.P.	Oil	12550
42-173-00821	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00822	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00823	STANDARD OIL PRODUCTION COMPANY	Oil	12550
42-173-00824	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00825	MIDPAR L.P.	Oil	12550
42-173-00826	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00827	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00828	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00829	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00830	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00831	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00832	PG&E RESOURCES COMPANY	Oil	07143
42-173-00833	PG&E RESOURCES COMPANY	Oil	13719
42-173-00834	PARKER & PARSLEY DEVELOPMENT L.P	Oil	07041
42-173-00835	PIONEER NATURAL RES. USA, INC.	Oil	07013
42-173-00836	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00837	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00838	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00839	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00840	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00841	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00842	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00843	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00844	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00845	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06832
42-173-00846	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00847	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06832
42-173-00848	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00849	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00852	PARKER & PARSLEY DEVELOPMENT L.P	Oil	07068
42-173-00853	PIONEER NATURAL RES. USA, INC.	Oil	11998
42-173-00854	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00855	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00856	PARKER & PARSLEY DEVELOPMENT L.P	Oil	12436
42-173-00857	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00858	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00859	PARKER & PARSLEY DEVELOPMENT L.P	Oil	12436
42-173-00860	PIONEER NATURAL RES. USA, INC.	Oil	07148
42-173-00861	PIONEER NATURAL RES. USA, INC.	Oil	07068
42-173-00862	PARKER & PARSLEY DEVELOPMENT L.P	Oil	12436
42-173-00863	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06980
42-173-00864	PARKER & PARSLEY DEVELOPMENT L.P	Oil	12436
42-173-00865	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00866	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00867	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00868	PIONEER NATURAL RES. USA, INC.	Oil	07340
42-173-00869	PIONEER NATURAL RES. USA, INC.	Oil	07411
42-173-00870	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00871	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00872	PIONEER NATURAL RES. USA, INC.	Oil	07340
42-173-00873	PIONEER NATURAL RES. USA, INC.	Oil	07340
42-173-00874	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00875	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00876	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00877	STANDARD OIL PRODUCTION COMPANY	Oil	07411
42-173-00878	STANDARD OIL PRODUCTION COMPANY	Oil	12436
42-173-00879	SOHIO PETROLEUM CO.	Oil
42-173-00880	PIONEER NATURAL RES. USA, INC.	Oil	07411
42-173-00881	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00882	PIONEER NATURAL RES. USA, INC.	Oil	07340
42-173-00883	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00884	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00885	PIONEER NATURAL RES. USA, INC.	Oil	07340
42-173-00886	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06890
42-173-00887	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00888	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00889	PIONEER NATURAL RES. USA, INC.	Oil	07411
42-173-00890	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00891	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00892	PIONEER NATURAL RES. USA, INC.	Oil	07411
42-173-00893	PIONEER NATURAL RES. USA, INC.	Oil	12541
42-173-00894	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00895	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00896	STANDARD OIL PRODUCTION COMPANY	Oil	12436
42-173-00897	PIONEER NATURAL RES. USA, INC.	Oil	07411
42-173-00898	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00900	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00901	STANDARD OIL PRODUCTION COMPANY	Oil	12436
42-173-00902	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00903	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00904	PIONEER NATURAL RES. USA, INC.	Oil	07411
42-173-00905	STANDARD OIL PRODUCTION COMPANY	Oil	14113
42-173-00906	PIONEER NATURAL RES. USA, INC.	Oil	07411
42-173-00907	STANDARD OIL PRODUCTION COMPANY	Oil
42-173-00908	PARKER & PARSLEY DEVELOPMENT L.P	Oil	07340
42-173-00910	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06682
42-173-00911	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00912	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06682
42-173-00913	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06682
42-173-00914	PARKER & PARSLEY DEVELOPMENT L.P	Oil	07715
42-173-00921	WHEELCO OIL & GAS, INC.	Oil
42-173-00924	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06944
42-173-00925	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00926	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06980
42-173-00927	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06832
42-173-00928	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00931	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00932	CHEVRON OIL COMPANY	Oil	41062
42-173-00933	Apache Corporation	Oil	02821
42-173-00936
42-173-00937	GOLDEN SPECIALTIES OIL & GAS	Oil	48358
42-173-00938	ENERGEN RESOURCES CORPORATION	Oil	07343
42-173-00939	DIAMONDBACK E&P LLC	Oil	31027
42-173-00940	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00941	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00953	Sun Exploration & Production Co.	Oil
42-173-00954	Sun Exploration & Production Co.	Oil
42-173-00955	Sun Exploration & Production Co.	Oil	41062
42-173-00956	Sun Exploration & Production Co.	Oil	41062
42-173-00957	Sun Exploration & Production Co.	Oil	41062
42-173-00958	Sun Exploration & Production Co.	Oil	41062
42-173-00959	Sun Exploration & Production Co.	Oil	22575
42-173-00960	Sun Exploration & Production Co.	Oil	41062
42-173-00961	Sun Exploration & Production Co.	Oil
42-173-00962	Sun Exploration & Production Co.	Oil	22575
42-173-00963	Sun Exploration & Production Co.	Oil
42-173-00965	Sun Exploration & Production Co.	Oil
42-173-00966	Sun Exploration & Production Co.	Oil	22575
42-173-00967	Sun Exploration & Production Co.	Oil	41062
42-173-00968	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-00969	Sun Exploration & Production Co.	Oil	41062
42-173-00970	Sun Exploration & Production Co.	Oil	22575
42-173-00971	Sun Exploration & Production Co.	Oil	22575
42-173-00974	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06601
42-173-00975	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-173-00977
42-173-00978	STEPHENS, AUTRY C.	Oil	33821
42-173-00980	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-00982	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-00983	Getty Oil Co.	Oil	22575
42-173-00986	SOHIO PETROLEUM CO.	Oil
42-173-00988	PIONEER NATURAL RES. USA, INC.	Oil
42-173-00990	PIONEER NATURAL RES. USA, INC.	Oil	09348
42-173-00991	Texaco Inc.	Oil
42-173-00994	MGM OIL & GAS COMPANY	Oil	20161
42-173-00995	MGM OIL & GAS COMPANY	Oil	20161
42-173-01000
42-173-01002	Citation Oil & Gas Corp.	Oil	07251
42-173-01003	PIONEER NATURAL RES. USA, INC.	Oil	29218
42-173-01004	Citation Oil & Gas Corp.	Oil	07251
42-173-01005	PIONEER NATURAL RES. USA, INC.	Oil
42-173-01006	STEPHENS, AUTRY C.	Oil	10081
42-173-01007	PIONEER NATURAL RES. USA, INC.	Oil
42-173-01008	PIONEER NATURAL RES. USA, INC.	Oil
42-173-01009	PIONEER NATURAL RES. USA, INC.	Oil
42-173-01010	PIONEER NATURAL RES. USA, INC.	Oil
42-173-01011	STEPHENS, AUTRY C.	Oil	07199
42-173-01012	STEPHENS, AUTRY C.	Oil	07199
42-173-01013	Getty Oil Co.	Oil
42-173-01014	Getty Oil Co.	Oil	22575
42-173-01015	Getty Oil Co.	Oil	41062
42-173-01016	Getty Oil Co.	Oil	22575
42-173-01018	Getty Oil Co.	Oil
42-173-01019	Getty Oil Co.	Oil
42-173-01020	Getty Oil Co.	Oil	22575
42-173-01021	Citation Oil & Gas Corp.	Oil	06920
42-173-01022	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-01023	STEPHENS, AUTRY C.	Oil	24632
42-173-01024	Citation Oil & Gas Corp.	Oil	07231
42-173-01025	Citation Oil & Gas Corp.	Oil	07231
42-173-01026	STEPHENS, AUTRY C.	Oil	34762
42-173-01027	STEPHENS, AUTRY C.	Oil	34762
42-173-01028	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-01029	ODESSA EXPLORATION, INC.	Oil
42-173-01030	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-01031	ODESSA EXPLORATION, INC.	Oil	07171
42-173-01032	Hunt Oil Company	Oil	06651
42-173-01035	MGM OIL & GAS COMPANY	Oil
42-173-01036	MGM OIL & GAS COMPANY	Oil
42-173-01040	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34379
42-173-01041	ENDEAVOR ENERGY RESOURCES L.P.	Gas
42-173-01042	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-173-01043	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-173-01048	MEWBOURNE OIL COMPANY	Oil	21138
42-173-01062	ASHBROOK OIL CO.	Oil	02739
42-173-01063	ASHBROOK OIL CO.	Oil	47984
42-173-01064	ENDEAVOR ENERGY RESOURCES L.P.	Oil	08641
42-173-01068	ASHBROOK OIL CO.	Oil	47984
42-173-01071	ASHBROOK OIL CO.	Oil
42-173-01072	CORONADO MINERALS, LLC	Oil	41108
42-173-01074	CORONADO MINERALS, LLC	Oil	02712
42-173-01084	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-173-01085	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-173-01086	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-173-01087	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-173-01088	TENNESSEE PRODUCTION CO.	Oil
42-173-01089	TENNESSEE PRODUCTION CO.	Oil
42-173-01090	HENDRICKSON, A. N.	Oil
42-173-01094	PIONEER NATURAL RES. USA, INC.	Oil	06607
42-173-01095	PIONEER NATURAL RES. USA, INC.	Oil	06607
42-173-01097	PIONEER NATURAL RES. USA, INC.	Oil	06607
42-173-01098	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06413
42-173-01103	FDL OPERATING, LLC	Oil	41062
42-173-01104	Hunt Oil Company	Oil
42-173-01105	PIONEER NATURAL RES. USA, INC.	Oil
42-173-01106	CONCHO RESOURCES INC.	Oil	31352
42-173-01254	Odessa Natural Corporation	Gas
42-173-01271	Odessa Natural Corporation	Gas
42-173-01302	CIMAREX ENERGY CO. OF COLORADO	Oil	42224
42-173-01981	DST EXPLORATION CORP.	Gas
42-173-07367	PETCO PETROLEUM CORP.	Oil
42-173-10001	Amerada Hess Corporation	Oil
42-173-10002	GREER OIL COMPANY, L.L.C.	Oil	19523
42-173-10003	5H OIL CO., LLC	Oil	19350
42-173-10004	5H OIL CO., LLC	Oil	19363
42-173-10005	5H OIL CO., LLC	Oil	19363
42-173-10006	ENDEAVOR ENERGY RESOURCES L.P.	Oil	19142
42-173-10007	Hunt Oil Company	Oil
42-173-10008	Hunt Oil Company	Oil	18972
42-173-10017	Hunt Oil Company	Oil	19302
42-173-10018	KING ENERGY RESOURCES	Oil	18053
42-173-10019	CORONADO MINERALS, LLC	Oil	02808
42-173-10020	CORONADO MINERALS, LLC	Oil	41110
42-173-10025	LEONARD BROTHERS OPERATING CO.	Oil	20846
42-173-10026	LEONARD BROTHERS OPERATING CO.	Oil	20846
42-173-10029	ROBERTSON RESOURCES, INC.	Oil	17432
42-173-10031	ROBERTSON RESOURCES, INC.	Oil	17432
42-173-10033	ROBERTSON RESOURCES, INC.	Oil	17701
42-173-10034	ROBERTSON RESOURCES, INC.	Oil	17120
42-173-10035	ENDEAVOR ENERGY RESOURCES L.P.	Oil	17402
42-173-10036	Hunt Oil Company	Oil	14594
42-173-10037	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06387
42-173-10038	Hunt Oil Company	Oil	14594
42-173-10041	Getty Oil Co.	Oil	06412
42-173-10043	Monsanto Company	Oil	41062
42-173-10044	Monsanto Company	Oil	41062
42-173-10045	Monsanto Company	Oil
42-173-10046	Monsanto Company	Oil	22575
42-173-10047	Monsanto Company	Oil	41062
42-173-10048	Monsanto Company	Oil	41062
42-173-10049	PIONEER NATURAL RES. USA, INC.	Oil	18834
42-173-10050	PIONEER NATURAL RES. USA, INC.	Oil	18834
42-173-10051	ENDEAVOR ENERGY RESOURCES L.P.	Oil	19187
42-173-10053	CONINE, J. H., JR.	Oil	19356
42-173-10055	5H OIL CO., LLC	Oil	02815
42-173-10056	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-10057	Southland Royalty Company	Oil
42-173-10059	Southland Royalty Company	Oil
42-173-10061	Southland Royalty Company	Oil
42-173-10062	Sun Exploration & Production Co.	Oil
42-173-10063	Sun Exploration & Production Co.	Oil	22575
42-173-10064	BURLINGTON RESOURCES OIL&GAS CO.	Oil	32331
42-173-10066	Vaughn Petroleum, Inc.	Oil
42-173-10067	Vaughn Petroleum, Inc.	Oil
42-173-10068	REDWOOD OIL & GAS	Oil	18271
42-173-10070	REDWOOD OIL & GAS	Oil
42-173-10071	REDWOOD OIL & GAS	Oil	18271
42-173-10072	REDWOOD OIL & GAS	Oil	18271
42-173-10077	ANEGADA RESOURCES	Oil	18151
42-173-10079	ANEGADA RESOURCES	Oil
42-173-10080	ANEGADA RESOURCES	Oil	18858
42-173-10081	ANEGADA RESOURCES	Oil	18151
42-173-10082	ANEGADA RESOURCES	Oil	18151
42-173-10083	ANEGADA RESOURCES	Oil	18151
42-173-10084	ANEGADA RESOURCES	Oil
42-173-10088	CIMAREX ENERGY CO. OF COLORADO	Oil	42224
42-173-10092	Vaughn Petroleum, Inc.	Oil
42-173-10093	5H OIL CO., LLC	Oil	19363
42-173-10112	ROBERTSON RESOURCES, INC.	Oil	17701
42-173-10114	SHERIDAN PRODUCTION COMPANY, LLC	Oil
42-173-10115	WHEELCO OIL & GAS, INC.	Oil
42-173-10116	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06387
42-173-10201	Apache Corporation	Oil	06301
42-173-10202	5H OIL CO., LLC	Oil	19965
42-173-10203	WASH, ROBERT C. INC.	Oil	47933
42-173-10204	OXY USA INC.	Oil
42-173-10205	CORONADO MINERALS, LLC	Oil	19869
42-173-10206	FASKEN OIL AND RANCH, LTD.	Gas	122506
42-173-10207	WELLS, EARL, JR.	Oil
42-173-10208	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20010
42-173-10211	CORONADO MINERALS, LLC	Oil	02712
42-173-10212	CORONADO MINERALS, LLC	Oil
42-173-10213	CORONADO MINERALS, LLC	Oil
42-173-10214	FASKEN, BARBARA	Oil	20099
42-173-10216	Union Texas Petroleum Corp.	Oil
42-173-10217	Monsanto Company	Oil	41062
42-173-10218	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-10221	WASH, ROBERT C. INC.	Oil	47933
42-173-10223	ARCO PERMIAN	Oil	06293
42-173-10225	GOLDEN SPECIALTIES OIL & GAS	Oil	20151
42-173-10226	GOLDEN SPECIALTIES OIL & GAS	Oil
42-173-10227	GOLDEN SPECIALTIES OIL & GAS	Oil	48357
42-173-10228	GOLDEN SPECIALTIES OIL & GAS	Oil	48357
42-173-10229	GOLDEN SPECIALTIES OIL & GAS	Oil	20151
42-173-10231	Monsanto Company	Oil	41062
42-173-10236	TEXACO E & P INC.	Oil
42-173-10238	CITIES SERVICE COMPANY	Oil
42-173-10239	PIONEER NATURAL RES. USA, INC.	Oil	53285
42-173-10240	BEACH EXPLORATION, INC.	Oil
42-173-10243	Hunt Oil Company	Oil	19302
42-173-10245	ADOBE RESOURCES CORPORATION	Oil	19948
42-173-10247	Vaughn Petroleum, Inc.	Oil
42-173-10251	CAMBRIAN MANAGEMENT, LTD.	Oil	20017
42-173-10252	CAMBRIAN MANAGEMENT, LTD.	Oil	20056
42-173-10254	CAMBRIAN MANAGEMENT, LTD.	Oil	20056
42-173-10255	OXY USA INC.	Oil	20038
42-173-10257	CAMBRIAN MANAGEMENT, LTD.	Oil	20056
42-173-10260	CORONADO MINERALS, LLC	Oil
42-173-10261	Sun Exploration & Production Co.	Oil
42-173-10262	Sun Exploration & Production Co.	Oil	41062
42-173-10263	GOLDEN SPECIALTIES OIL & GAS	Oil	48357
42-173-10265	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06412
42-173-10266	CAMBRIAN MANAGEMENT, LTD.	Oil
42-173-10267	GOLDEN SPECIALTIES OIL & GAS	Oil	48357
42-173-10268	Sun Exploration & Production Co.	Oil
42-173-10269	Sun Exploration & Production Co.	Oil
42-173-10271	Union Texas Petroleum Corp.	Oil
42-173-10272	ADOBE OIL CO.	Oil
42-173-10273	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06412
42-173-10275
42-173-10276	PETEX	Gas	203027
42-173-10277
42-173-10279	5H OIL CO., LLC	Oil	02815
42-173-10280	5H OIL CO., LLC	Oil	41310
42-173-10281
42-173-10282	KWJ ENTERPRISES	Oil
42-173-10283	GOLDEN SPECIALTIES OIL & GAS	Oil	20259
42-173-10284
42-173-10285	PIONEER NATURAL RES. USA, INC.	Oil	20093
42-173-10288	CAMBRIAN MANAGEMENT, LTD.	Oil
42-173-10289	MEWBOURNE OIL COMPANY	Oil	20204
42-173-10291	Hunt Oil Company	Oil	06501
42-173-10292	CAMBRIAN MANAGEMENT, LTD.	Oil	20056
42-173-10295	PIONEER NATURAL RES. USA, INC.	Oil	20247
42-173-10296	CAMBRIAN MANAGEMENT, LTD.	Oil
42-173-10297	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-173-10299	REDWOOD OIL & GAS	Oil	20243
42-173-10301	Apache Corporation	Oil	46386
42-173-10302
42-173-10304	MEWBOURNE OIL COMPANY	Oil	20204
42-173-10305	5H OIL CO., LLC	Oil	41317
42-173-10306	5H OIL CO., LLC	Oil	41317
42-173-10307	RICHMOND DRILLING COMPANY, INC.	Oil
42-173-10308	Vaughn Petroleum, Inc.	Oil
42-173-10309	CONSOLIDATED OIL & GAS, INC	Oil	20345
42-173-10310	CIMAREX ENERGY CO. OF COLORADO	Oil	02809
42-173-10312	GOLDEN SPECIALTIES OIL & GAS	Oil	48127
42-173-10313	GOLDEN SPECIALTIES OIL & GAS	Oil	48358
42-173-10314	VISION NATURAL RESOURCES, LP	Oil	48010
42-173-10315	GOLDEN SPECIALTIES OIL & GAS	Oil	20151
42-173-10316	CIMAREX ENERGY CO. OF COLORADO	Oil
42-173-10318	CONOCOPHILLIPS COMPANY	Oil	02704
42-173-10319
42-173-10321
42-173-10322	Vaughn Petroleum, Inc.	Oil
42-173-10323	MEWBOURNE OIL COMPANY	Oil	40015
42-173-10326	CONSOLIDATED OIL & GAS, INC	Oil	20345
42-173-10327	CIMAREX ENERGY CO. OF COLORADO	Oil	42209
42-173-10328	5H OIL CO., LLC	Oil	41310
42-173-10329	5H OIL CO., LLC	Oil	41310
42-173-10334	GOLDEN SPECIALTIES OIL & GAS	Oil	20151
42-173-10335	GOLDEN SPECIALTIES OIL & GAS	Oil	48357
42-173-10336	5H OIL CO., LLC	Oil	20493
42-173-10337	5H OIL CO., LLC	Oil	20493
42-173-10338	CONOCOPHILLIPS COMPANY	Oil	02704
42-173-10339	K&P ENTERPRISES	Oil	34148
42-173-10340	PARSLEY ENERGY OPERATIONS, LLC	Oil	20535
42-173-10341	Vaughn Petroleum, Inc.	Oil
42-173-10342	CIMAREX ENERGY CO. OF COLORADO	Oil
42-173-10344	DOUBLE EAGLE PETROLEUM CORP	Oil	20542
42-173-10345
42-173-10346
42-173-10347	5H OIL CO., LLC	Oil	02771
42-173-10348	5H OIL CO., LLC	Oil	41317
42-173-10349	Sun Exploration & Production Co.	Oil
42-173-10351	PREMIER NATURAL RESOURCES, L.P.	Oil	20572
42-173-10352	5H OIL CO., LLC	Oil	02815
42-173-10353	K&P ENTERPRISES	Oil	20512
42-173-10356	5H OIL CO., LLC	Oil	20493
42-173-10357	5H OIL CO., LLC	Oil	20493
42-173-10358
42-173-10360
42-173-10361	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-173-10364	CIMAREX ENERGY CO. OF COLORADO	Oil
42-173-10365	DOUBLE EAGLE PETROLEUM CORP	Oil	20542
42-173-10366	PREMIER NATURAL RESOURCES, LLC	Oil	20616
42-173-10367	DOUBLE EAGLE PETROLEUM CORP	Oil	20542
42-173-10368	WASH, ROBERT C. INC.	Oil	47933
42-173-10369	WASH, ROBERT C. INC.	Oil	47933
42-173-10370	PREMIER NATURAL RESOURCES, L.P.	Oil	20572
42-173-10371	WASH, ROBERT C. INC.	Oil	47933
42-173-10372	DOUBLE EAGLE PETROLEUM CORP	Oil
42-173-10373	PREMIER NATURAL RESOURCES, LLC	Oil
42-173-10374	PREMIER NATURAL RESOURCES, L.P.	Oil	20572
42-173-10376	PREMIER NATURAL RESOURCES, L.P.	Oil
42-173-10377	Apache Corporation	Oil	02702
42-173-10379	CONOCOPHILLIPS COMPANY	Oil	02704
42-173-10380	CHEVRON U. S. A. INC.	Oil
42-173-10382	Monsanto Company	Oil	41062
42-173-10383
42-173-10385	CONTINENTAL OIL COMPANY	Oil
42-173-10386
42-173-10387	MEWBOURNE OIL COMPANY	Oil	40116
42-173-10388	WASH, ROBERT C. INC.	Oil	02738
42-173-10389	WASH, ROBERT C. INC.	Oil	47933
42-173-10390	WASH, ROBERT C. INC.	Oil	47933
42-173-10391	WASH, ROBERT C. INC.	Oil	47933
42-173-10392	WASH, ROBERT C. INC.	Oil	02738
42-173-10393	WASH, ROBERT C. INC.	Oil	02738
42-173-10396	5H OIL CO., LLC	Oil	41310
42-173-10400	LEONARD BROTHERS OPERATING CO.	Oil	20846
42-173-10402	GOLDEN SPECIALTIES OIL & GAS	Oil	20151
42-173-10403	GOLDEN SPECIALTIES OIL & GAS	Oil	48357
42-173-10404	PENNZOIL UNITED INC.	Oil
42-173-10405	GOLDEN SPECIALTIES OIL & GAS	Oil
42-173-10410	LEONARD BROTHERS OPERATING CO.	Oil	20846
42-173-10417	LEONARD BROTHERS OPERATING CO.	Oil	20846
42-173-10419	CONOCOPHILLIPS COMPANY	Oil	02774
42-173-10421	GOLDEN SPECIALTIES OIL & GAS	Oil	48357
42-173-10422	GOLDEN SPECIALTIES OIL & GAS	Oil	20151
42-173-10423	GOLDEN SPECIALTIES OIL & GAS	Oil	20151
42-173-10424	KING ENERGY RESOURCES	Oil	40633
42-173-10428	CONOCOPHILLIPS COMPANY	Oil	02774
42-173-10430	Apache Corporation	Oil
42-173-10434	Apache Corporation	Oil
42-173-10440	5H OIL CO., LLC	Oil	41310
42-173-10445	WASH, ROBERT C. INC.	Oil
42-173-10451	5H OIL CO., LLC	Oil	19965
42-173-10452	5H OIL CO., LLC	Oil	19965
42-173-10456	WASH, ROBERT C. INC.	Oil	47933
42-173-10457	WASH, ROBERT C. INC.	Oil	47933
42-173-10548	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-20006	OXY USA INC.	Oil	20038
42-173-20007	OXY USA INC.	Oil
42-173-20020	FINALY RESOURCES LLC	Oil	20628
42-173-20021	FINALY RESOURCES LLC	Oil
42-173-20033	PHILLIPS WATER HAULING, INC.	Oil
42-173-20034	Union Texas Petroleum Corp.	Oil
42-173-20039
42-173-20042	MEWBOURNE OIL COMPANY	Oil	21138
42-173-20046
42-173-20058
42-173-20075	Hunt Oil Company	Oil	20211
42-173-20076	Hunt Oil Company	Oil	20211
42-173-20077	HANLEY PETROLEUM INC.	Oil	20258
42-173-20078	Hunt Oil Company	Oil	20211
42-173-30004	TERRA RESOURCES, INC.	Oil
42-173-30007	5H OIL CO., LLC	Oil	41317
42-173-30008	FINALY RESOURCES LLC	Oil	20628
42-173-30009	Hunt Oil Company	Oil	21301
42-173-30010	WHEELCO OIL & GAS, INC.	Oil
42-173-30012	ROVER PETROLEUM OPERATING, LLC	Oil	21317
42-173-30013	HENDON, WILLIAM E., JR.	Oil	27236
42-173-30016	DE3 OPERATING LLC	Oil	06423
42-173-30017	ROVER PETROLEUM OPERATING, LLC	Oil	21317
42-173-30018	Getty Oil Co.	Oil	41062
42-173-30019
42-173-30022	RSP PERMIAN, LLC	Oil	21571
42-173-30028	ROVER PETROLEUM OPERATING, LLC	Oil	21317
42-173-30030	RSP PERMIAN, LLC	Oil	21571
42-173-30031	5H OIL CO., LLC	Oil	21840
42-173-30032	5H OIL CO., LLC	Oil
42-173-30033	Texaco Inc.	Oil
42-173-30035	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21869
42-173-30036	MECCA ENERGY, INC.	Oil
42-173-30037	COG OPERATING LLC	Oil	22021
42-173-30040	RIO OIL AND GAS (PERMIAN) II,LLC	Oil	22169
42-173-30041	Hunt Oil Company	Oil	20269
42-173-30042	ARROWHEAD PETROLEUM, INC.	Oil	22175
42-173-30043	JM COX RESOURCES, L.P.	Oil	23752
42-173-30045	5H OIL CO., LLC	Oil	21840
42-173-30046	5H OIL CO., LLC	Oil	21840
42-173-30049	COG OPERATING LLC	Oil	22021
42-173-30050	PIONEER NATURAL RES. USA, INC.	Oil	22340
42-173-30051	GOLDEN SPECIALTIES OIL & GAS	Oil	20259
42-173-30053	5H OIL CO., LLC	Oil	21840
42-173-30054	5H OIL CO., LLC	Oil	21840
42-173-30055	SMITH PIPE OF ABILENE	Oil	22502
42-173-30057	COG OPERATING LLC	Oil
42-173-30059	5H OIL CO., LLC	Oil	41313
42-173-30062	BROWN, H. L., JR.	Oil
42-173-30063	LOVELADY, IKE INC.
42-173-30064	OVINTIV USA INC.	Oil
42-173-30066	OVINTIV USA INC.	Oil	22759
42-173-30067	SHERIDAN PRODUCTION COMPANY, LLC	Oil
42-173-30068	COG OPERATING LLC	Oil	22021
42-173-30069	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-30070	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30071	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-30072	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-30073	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30074	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30075	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30076
42-173-30077	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30078	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30079	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30080	FDL OPERATING, LLC	Oil	41062
42-173-30081	SHERIDAN PRODUCTION COMPANY, LLC	Oil
42-173-30082	SHERIDAN PRODUCTION COMPANY, LLC	Oil
42-173-30083	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30084	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-30085	ORYX ENERGY COMPANY	Oil	22575
42-173-30086	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30087	FDL OPERATING, LLC	Oil	41062
42-173-30088	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-30089	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30090	FDL OPERATING, LLC	Oil	41062
42-173-30091	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30092	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-30093	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30094	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-30095	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-30096	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-30097
42-173-30098	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-30099	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-30100	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-30101	COG OPERATING LLC	Oil	22943
42-173-30102	CIMAREX ENERGY CO. OF COLORADO	Oil	42209
42-173-30103	20TH CENTURY PIPE & EQUIP.CO.INC	Oil	23180
42-173-30104	20TH CENTURY PIPE & EQUIP.CO.INC	Oil	23140
42-173-30105	ENSERCH EXPLORATION, INC	Oil	23166
42-173-30108	DIAMONDBACK E&P LLC	Oil	23237
42-173-30109	DIAMONDBACK E&P LLC	Oil	23377
42-173-30110	DIAMONDBACK E&P LLC	Oil	23323
42-173-30111	DIAMONDBACK E&P LLC	Oil	23323
42-173-30112	ADCO PRODUCTION CO.	Oil	23156
42-173-30114	KNOX INDUSTRIES, INC.	Oil
42-173-30116	ADOBE RESOURCES CORPORATION	Oil
42-173-30118	OVINTIV USA INC.	Oil	22759
42-173-30119	DIAMONDBACK E&P LLC	Oil	23285
42-173-30120	OCCIDENTAL PERMIAN LTD.	Oil	23191
42-173-30121	Amoco Production Company	Oil
42-173-30123	COG OPERATING LLC	Oil	23203
42-173-30124	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20270
42-173-30126	PIONEER NATURAL RES. USA, INC.	Oil	23233
42-173-30127	DE3 OPERATING LLC	Oil	23456
42-173-30128	ADOBE RESOURCES CORPORATION	Oil
42-173-30129	COG OPERATING LLC	Oil	22943
42-173-30130	PARSLEY ENERGY OPERATIONS, LLC	Oil	06483
42-173-30131	WESTLAND OIL DEVELOPMENT CORP.	Oil
42-173-30132	Cox, John L.
42-173-30133	JJ OIL & GAS	Oil	23576
42-173-30134	JJ OIL & GAS	Oil	23378
42-173-30135	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23809
42-173-30136	KNOX INDUSTRIES, INC.	Oil
42-173-30137	WESTLAND OIL DEVELOPMENT CORP.	Oil
42-173-30138	OXY USA INC.	Oil	23331
42-173-30140	PARSLEY ENERGY OPERATIONS, LLC	Oil	23314
42-173-30141	DE3 OPERATING LLC	Oil
42-173-30144	ENERGEN RESOURCES CORPORATION	Oil	23411
42-173-30146	OCCIDENTAL PERMIAN LTD.	Oil	23291
42-173-30152	DE3 OPERATING LLC	Oil	06420
42-173-30154	FED OPERATING LLC	Oil
42-173-30156	PIONEER NATURAL RES. USA, INC.	Oil	23233
42-173-30157	JM COX RESOURCES, L.P.	Oil	23753
42-173-30161	SAXON OPERATING COMPANY	Oil
42-173-30162	DE3 OPERATING LLC	Oil	06423
42-173-30163	PHILLIPS WATER HAULING, INC.	Oil	08425
42-173-30164	DE3 OPERATING LLC	Oil	23421
42-173-30165	COG OPERATING LLC	Oil	22943
42-173-30166	EP Operating Company	Oil
42-173-30167	T.G.B., INC.	Oil	32798
42-173-30168
42-173-30169	PIONEER NATURAL RES. USA, INC.	Oil	23439
42-173-30170	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21785
42-173-30172	OXY USA INC.	Oil
42-173-30173	PARSLEY ENERGY OPERATIONS, LLC	Oil	06483
42-173-30174	COG OPERATING LLC	Oil	23203
42-173-30175	EP Operating Company	Oil
42-173-30176	20TH CENTURY PIPE & EQUIP.CO.INC	Oil	23985
42-173-30177	EP Operating Company	Oil
42-173-30178	20TH CENTURY PIPE & EQUIP.CO.INC	Oil	23712
42-173-30179	DIAMONDBACK E&P LLC	Oil	23285
42-173-30180	DIAMONDBACK E&P LLC	Oil	23450
42-173-30183	TEXAS INVESTMENTS	Oil	23395
42-173-30186	DIAMONDBACK E&P LLC	Oil	23608
42-173-30187	PETROWARRIOR OIL AND GAS, INC.	Oil
42-173-30189	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23808
42-173-30190	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23808
42-173-30191	DIAMOND CHEMICALS COMPANY	Oil
42-173-30192	DIAMOND CHEMICALS COMPANY	Oil
42-173-30193	RSP PERMIAN, LLC	Oil	23419
42-173-30194	PETROLEUM CORP. OF DELAWARE, THE	Oil
42-173-30195	20TH CENTURY PIPE & EQUIP.CO.INC	Oil	23755
42-173-30196	ENERGEN RESOURCES CORPORATION	Oil	23611
42-173-30197	DE3 OPERATING LLC	Oil	23456
42-173-30198	COG OPERATING LLC	Oil
42-173-30199	DE3 OPERATING LLC	Oil	06420
42-173-30201	DE3 OPERATING LLC	Oil	06420
42-173-30202	DE3 OPERATING LLC	Oil	23290
42-173-30203	DE3 OPERATING LLC	Oil	23421
42-173-30204	COG OPERATING LLC	Oil	23203
42-173-30205	20TH CENTURY PIPE & EQUIP.CO.INC	Oil	23712
42-173-30206	20TH CENTURY PIPE & EQUIP.CO.INC	Oil	23712
42-173-30207	PHILLIPS WATER HAULING, INC.	Oil	08425
42-173-30208	ENERGEN RESOURCES CORPORATION	Oil	23411
42-173-30209	JM COX RESOURCES, L.P.	Oil	23753
42-173-30210	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23443
42-173-30213	PIONEER NATURAL RES. USA, INC.	Oil	23439
42-173-30217	CROWNQUEST OPERATING, LLC	Oil
42-173-30218	OXY USA INC.	Oil	23331
42-173-30220	OVINTIV USA INC.	Oil	53608
42-173-30221	OXY USA INC.	Oil	23331
42-173-30222	Conoco Inc.	Oil
42-173-30225	ADOBE RESOURCES CORPORATION	Oil	23529
42-173-30226	PIONEER NATURAL RES. USA, INC.	Oil	23439
42-173-30227	PIONEER NATURAL RES. USA, INC.	Oil	23439
42-173-30228	ENERGEN RESOURCES CORPORATION	Oil	23621
42-173-30229	Pioneer Production Corp.	Oil
42-173-30230	ROYALTY LAND & DEV. CO., INC.	Oil	23392
42-173-30231	TEXAS INVESTMENTS	Oil
42-173-30232	PIONEER NATURAL RES. USA, INC.	Oil	23439
42-173-30233	PIONEER NATURAL RES. USA, INC.	Oil	23439
42-173-30234	20TH CENTURY PIPE & EQUIP.CO.INC	Oil	23860
42-173-30236	DE3 OPERATING LLC	Oil	23557
42-173-30237	PARSLEY ENERGY OPERATIONS, LLC	Oil	52950
42-173-30238	JM COX RESOURCES, L.P.	Oil	23419
42-173-30240	20TH CENTURY PIPE & EQUIP.CO.INC	Oil	23735
42-173-30241	PIONEER NATURAL RES. USA, INC.	Oil	23630
42-173-30242	Pioneer Production Corp.	Oil
42-173-30244	20TH CENTURY PIPE & EQUIP.CO.INC	Oil	23860
42-173-30245	CROWNQUEST OPERATING, LLC	Oil	23719
42-173-30246	JM COX RESOURCES, L.P.	Oil	23600
42-173-30247	RSP PERMIAN, LLC	Oil	23842
42-173-30248	BROWN, TOM INC.	Oil
42-173-30252	Cox, John L.	Oil
42-173-30253	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23822
42-173-30254	JM COX RESOURCES, L.P.	Oil	23620
42-173-30255	ADOBE RESOURCES CORPORATION	Oil	23610
42-173-30256	TREND EXPLORATION COMPANY	Oil	23723
42-173-30257	DE3 OPERATING LLC	Oil	23557
42-173-30258
42-173-30259	Hunt Oil Company	Oil	06478
42-173-30260	Pioneer Production Corp.	Oil
42-173-30261	TEXAS INVESTMENTS	Oil	23627
42-173-30262	MWS PRODUCING, INC.	Oil	23636
42-173-30263	JM COX RESOURCES, L.P.	Oil	23753
42-173-30264	Pioneer Production Corp.	Oil
42-173-30266	DE3 OPERATING LLC	Oil	33497
42-173-30268	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23816
42-173-30269	Amarillo Oil Co.	Oil	23863
42-173-30270	TEXAS INVESTMENTS	Oil	23642
42-173-30271	JM COX RESOURCES, L.P.	Oil	23600
42-173-30272	COG OPERATING LLC	Oil	23842
42-173-30273	FED OPERATING LLC	Oil	52920
42-173-30274	PIONEER NATURAL RES. USA, INC.	Oil	23439
42-173-30275	CROWNQUEST OPERATING, LLC	Oil	23719
42-173-30276	JM COX RESOURCES, L.P.	Oil	23620
42-173-30279	JM COX RESOURCES, L.P.	Oil	23785
42-173-30280	JM COX RESOURCES, L.P.	Oil	23727
42-173-30281	RSP PERMIAN, LLC	Oil	23842
42-173-30283	FED OPERATING LLC	Oil
42-173-30284	RSP PERMIAN, LLC	Oil	23419
42-173-30285	Cox, John L.	Oil
42-173-30286	FDL OPERATING, LLC	Oil	41062
42-173-30288	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-30289	JM COX RESOURCES, L.P.	Oil	23600
42-173-30290	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30291	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30292	JM COX RESOURCES, L.P.	Oil	23620
42-173-30293	DE3 OPERATING LLC	Oil	23557
42-173-30294	RSP PERMIAN, LLC	Oil	23419
42-173-30295	JM COX RESOURCES, L.P.	Oil	23620
42-173-30296	JM COX RESOURCES, L.P.	Oil	23727
42-173-30297	JM COX RESOURCES, L.P.	Oil	23600
42-173-30298	SAXON OPERATING COMPANY	Oil
42-173-30299	JM COX RESOURCES, L.P.	Oil	23785
42-173-30300	CROWNQUEST OPERATING, LLC	Oil	23634
42-173-30301	ROBERTSON RESOURCES, INC.	Oil	23775
42-173-30302	TEXAS INVESTMENTS	Oil	23627
42-173-30303	Cox, John L.	Oil	23902
42-173-30304	AQUA TERRA PERMIAN, LLC	Oil	44080
42-173-30305	Apache Corporation	Oil	46360
42-173-30306	PIONEER NATURAL RES. USA, INC.	Oil	23871
42-173-30307	PIONEER NATURAL RES. USA, INC.	Oil	23871
42-173-30308	CONOCOPHILLIPS COMPANY	Oil	20060
42-173-30309	JM COX RESOURCES, L.P.	Oil	23901
42-173-30310	JM COX RESOURCES, L.P.	Oil	23727
42-173-30311	TAMARACK PETROLEUM COMPANY, INC.	Oil	23918
42-173-30312	CROWNQUEST OPERATING, LLC	Oil	23634
42-173-30313	JM COX RESOURCES, L.P.	Oil	23620
42-173-30314	JM COX RESOURCES, L.P.	Oil	23727
42-173-30315	5H OIL CO., LLC	Oil	23667
42-173-30316	JM COX RESOURCES, L.P.	Oil	23785
42-173-30317	FED OPERATING LLC	Oil	23897
42-173-30318	ROBERTSON RESOURCES, INC.	Oil	23775
42-173-30319	Cox, John L.	Oil
42-173-30320	PARSLEY ENERGY OPERATIONS, LLC	Oil
42-173-30321	DE3 OPERATING LLC	Oil	23557
42-173-30322	ROBERTSON RESOURCES, INC.	Oil	23775
42-173-30323	ESTORIL PRODUCING CORPORATION	Gas
42-173-30325	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30326	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30327	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-30328	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-173-30329	5H OIL CO., LLC	Oil	41317
42-173-30330	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30331	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30332	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30333	Cox, John L.	Oil
42-173-30334	ADOBE RESOURCES CORPORATION	Oil
42-173-30335	ABDU EXPLORATION CO.	Oil
42-173-30336	Cox, John L.	Oil
42-173-30337	Cox, John L.	Oil
42-173-30340	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24093
42-173-30342	DE3 OPERATING LLC	Oil	24005
42-173-30343	Cox, John L.	Oil
42-173-30345	JM COX RESOURCES, L.P.	Oil	23901
42-173-30346	ESTORIL PRODUCING CORPORATION	Oil	36218
42-173-30347	DE3 OPERATING LLC	Oil	24025
42-173-30348	PIONEER NATURAL RES. USA, INC.	Oil	24037
42-173-30349	PARSLEY ENERGY OPERATIONS, LLC	Oil	54159
42-173-30350	DE3 OPERATING LLC	Oil
42-173-30351	Cox, John L.	Oil	24144
42-173-30352	Cox, John L.	Oil	24086
42-173-30353	Apache Corporation	Oil	46360
42-173-30354	ESTORIL PRODUCING CORPORATION	Oil	36218
42-173-30355	PARSLEY ENERGY OPERATIONS, LLC	Oil	24085
42-173-30356	ALLEDER INC.	Oil	24010
42-173-30357	DE3 OPERATING LLC	Oil	24005
42-173-30358	ALLEDER INC.	Oil	24011
42-173-30360	ALLEDER INC.	Oil	33550
42-173-30361	Cox, John L.	Oil
42-173-30362	PIONEER NATURAL RES. USA, INC.	Oil	24076
42-173-30363	Cox, John L.	Oil	24101
42-173-30364	PARSLEY ENERGY OPERATIONS, LLC	Oil	24066
42-173-30366	MINERAL TECHNOLOGIES, INC.	Oil	40640
42-173-30367	PARSLEY ENERGY OPERATIONS, LLC	Oil	24066
42-173-30368
42-173-30369	MARSHCO PRODUCTION LLC	Oil	29409
42-173-30370	DE3 OPERATING LLC	Oil	24095
42-173-30371	PARSLEY ENERGY OPERATIONS, LLC	Gas	278566
42-173-30372	PETROLEUM INC.	Oil
42-173-30373	OVINTIV USA INC.	Oil	22750
42-173-30374	Apache Corporation	Oil	24158
42-173-30375	ALLEDER INC.	Oil	24033
42-173-30376	Apache Corporation	Oil	24145
42-173-30377	ESTORIL PRODUCING CORPORATION	Oil	26257
42-173-30378	DE3 OPERATING LLC	Oil	24184
42-173-30379	DE3 OPERATING LLC	Oil	24005
42-173-30380	ROBERTSON RESOURCES, INC.	Oil	23775
42-173-30381	PARSLEY ENERGY OPERATIONS, LLC	Oil	24135
42-173-30382	Apache Corporation	Oil
42-173-30383	ROBERTSON RESOURCES, INC.	Oil	17120
42-173-30384	Apache Corporation	Oil	24262
42-173-30386	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30387	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30389	PARAPETROLEUM	Oil
42-173-30390	DE3 OPERATING LLC	Oil	24005
42-173-30391	DE3 OPERATING LLC	Oil	24184
42-173-30392	Apache Corporation	Oil	24262
42-173-30394	DE3 OPERATING LLC	Oil	24184
42-173-30395	JM COX RESOURCES, L.P.	Oil	23901
42-173-30396	ESTORIL PRODUCING CORPORATION	Oil	26257
42-173-30397	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23808
42-173-30398	PARSLEY ENERGY OPERATIONS, LLC	Oil	24194
42-173-30399	DE3 OPERATING LLC	Oil
42-173-30400	ESTORIL PRODUCING CORPORATION	Oil
42-173-30401	ESTORIL PRODUCING CORPORATION	Gas
42-173-30403	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23808
42-173-30405	PARSLEY ENERGY OPERATIONS, LLC	Oil	24194
42-173-30406	TAMARACK PETROLEUM COMPANY, INC.	Oil	24292
42-173-30407	PARSLEY ENERGY OPERATIONS, LLC	Oil	24227
42-173-30408	ESTORIL PRODUCING CORPORATION	Oil	36218
42-173-30409	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30410	DE3 OPERATING LLC	Oil	24095
42-173-30411	STEPHENS, AUTRY C.	Oil	33828
42-173-30413	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-30414	PARSLEY ENERGY OPERATIONS, LLC	Oil
42-173-30415	CONOCOPHILLIPS COMPANY	Oil	02697
42-173-30416
42-173-30417	OCCIDENTAL PERMIAN LTD.	Oil
42-173-30418	ESTORIL PRODUCING CORPORATION	Oil	26257
42-173-30419	ESTORIL PRODUCING CORPORATION	Oil	36218
42-173-30420	CONCHO RESOURCES INC.	Oil	31352
42-173-30422	ESTORIL PRODUCING CORPORATION	Oil	26257
42-173-30423	PARSLEY ENERGY OPERATIONS, LLC	Oil	24380
42-173-30424	JM COX RESOURCES, L.P.	Oil
42-173-30426	Hunt Oil Company	Gas	249238
42-173-30427	HANLEY PETROLEUM INC.	Oil	07038
42-173-30428	PARSLEY ENERGY OPERATIONS, LLC	Oil	24380
42-173-30429	CIMAREX ENERGY CO. OF COLORADO	Oil	42209
42-173-30430	PED OIL CORPORATION	Oil	07111
42-173-30431	WILSON, WM. B. EXPLORATION INC.	Oil	24481
42-173-30432	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24461
42-173-30433	SHINNERY OIL COMPANY, INC.	Oil	24472
42-173-30434	CONOCOPHILLIPS COMPANY	Oil	24763
42-173-30435	DIAMONDBACK E&P LLC	Oil	24433
42-173-30436	ADOBE OIL & GAS CORP.	Oil
42-173-30437	SHERIDAN PRODUCTION COMPANY, LLC	Oil
42-173-30438	MGM OIL & GAS COMPANY	Oil	20161
42-173-30439	PARSLEY ENERGY OPERATIONS, LLC	Oil	24464
42-173-30440	PARSLEY ENERGY OPERATIONS, LLC	Oil	24464
42-173-30441	DIAMONDBACK E&P LLC	Oil	39445
42-173-30442	AGGIETECH OIL, LTD.	Oil	25446
42-173-30443	KING ENERGY RESOURCES	Oil	24609
42-173-30444	CONOCOPHILLIPS COMPANY	Oil	02697
42-173-30445	CONOCOPHILLIPS COMPANY	Oil	02697
42-173-30446	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-30447	TAMARACK PETROLEUM COMPANY, INC.	Oil	24580
42-173-30449	Cox, John L.	Oil	24510
42-173-30450	TAMARACK PETROLEUM COMPANY, INC.	Oil
42-173-30451	HANLEY PETROLEUM INC.	Oil	07149
42-173-30452	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24632
42-173-30453	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24461
42-173-30456	PARSLEY ENERGY OPERATIONS, LLC	Oil	24573
42-173-30457	PARSLEY ENERGY OPERATIONS, LLC	Oil	24596
42-173-30458	ESTORIL PRODUCING CORPORATION	Gas
42-173-30459	DIAMONDBACK E&P LLC	Oil	24633
42-173-30462	MINERAL TECHNOLOGIES, INC.	Oil	26257
42-173-30463	MEWBOURNE OIL COMPANY	Oil	24865
42-173-30464	TAMARACK PETROLEUM COMPANY, INC.	Oil
42-173-30465	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-30466	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-30467	PARSLEY ENERGY OPERATIONS, LLC	Oil	24660
42-173-30468	TAMARACK PETROLEUM COMPANY, INC.	Oil
42-173-30470	TAMARACK PETROLEUM COMPANY, INC.	Oil	24689
42-173-30471	PARSLEY ENERGY OPERATIONS, LLC	Oil	24660
42-173-30473	ADOBE OIL & GAS CORP.	Oil
42-173-30551
42-173-30864	PARSLEY ENERGY OPERATIONS, LLC	Oil	24742
42-173-30865	PARSLEY ENERGY OPERATIONS, LLC	Oil	24742
42-173-30866	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-30867	CONOCOPHILLIPS COMPANY	Oil	41246
42-173-30868	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-30869	DIAMONDBACK E&P LLC	Oil	24433
42-173-30870	MINERAL TECHNOLOGIES, INC.	Oil	26257
42-173-30871	ESTORIL PRODUCING CORPORATION	Oil
42-173-30872	ESTORIL PRODUCING CORPORATION	Gas
42-173-30873	Coquina Oil Corporation	Oil
42-173-30874	TAMARACK PETROLEUM COMPANY, INC.	Oil
42-173-30875	Texaco Inc.	Oil	24759
42-173-30876	PED OIL CORPORATION	Oil	07111
42-173-30877	ADOBE RESOURCES CORPORATION	Oil
42-173-30878	TAMARACK PETROLEUM COMPANY, INC.	Oil	24783
42-173-30879	MID-AMERICA PETROLEUM, INC.	Oil	24055
42-173-30880	MID-AMERICA PETROLEUM, INC.	Oil
42-173-30881	PARSLEY ENERGY OPERATIONS, LLC	Oil	24855
42-173-30882	MAPCO INC.
42-173-30883	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24967
42-173-30884	TAMARACK PETROLEUM COMPANY, INC.	Oil
42-173-30885	ADOBE OIL CO.
42-173-30886	ADOBE OIL & GAS CORP.
42-173-30887	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24461
42-173-30888	BELCO PETROLEUM CORPORATION	Oil	35290
42-173-30889	PARSLEY ENERGY OPERATIONS, LLC	Oil	24893
42-173-30890	TEXON PETR. CORP.	Oil	40409
42-173-30891	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36339
42-173-30892	JM COX RESOURCES, L.P.	Oil
42-173-30893	CONOCOPHILLIPS COMPANY	Oil	10806
42-173-30894	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-173-30895	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-173-30896	Pennzoil Company
42-173-30897	FLORIDA GAS EXPLORATION COMPANY
42-173-30898	MINERAL TECHNOLOGIES, INC.	Oil	36218
42-173-30900	BELCO PETROLEUM CORPORATION
42-173-30901	CIMAREX ENERGY CO. OF COLORADO	Oil	42224
42-173-30902	CIMAREX ENERGY CO. OF COLORADO	Oil	42224
42-173-30903	CIMAREX ENERGY CO. OF COLORADO	Oil	42224
42-173-30904	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36339
42-173-30905	MINERAL TECHNOLOGIES, INC.	Oil	40639
42-173-30906	CONOCOPHILLIPS COMPANY	Oil	02697
42-173-30907	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-30908	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-30909	MGM OIL & GAS COMPANY	Oil	20161
42-173-30910	ESTORIL PRODUCING CORPORATION
42-173-30911	SHENANDOAH OIL CORP.	Oil	42209
42-173-30912	BELCO PETROLEUM CORPORATION	Oil	24609
42-173-30913	LAVANCO ENERGY, LTD.	Oil	25184
42-173-30915	MEWBOURNE OIL COMPANY	Oil
42-173-30916	DIAMOND CHEMICALS COMPANY
42-173-30917	HANSON CORPORATION	Oil	26368
42-173-30918	Monsanto Company
42-173-30919	DIAMOND CHEMICALS COMPANY
42-173-30920	MAPCO INC.	Oil
42-173-30921	MGM OIL & GAS COMPANY	Oil	48124
42-173-30922	Sun Exploration & Production Co.	Oil	20161
42-173-30923	CONTINENTAL OIL COMPANY	Oil	02701
42-173-30924	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-30925	BASS ENTERPRISES PRODUCTION CO.
42-173-30926	DIAMOND CHEMICALS COMPANY
42-173-30927	STANOLIND PRODUCTION LLC	Oil	25052
42-173-30928	DIAMOND CHEMICALS COMPANY
42-173-30929	Apache Corporation	Oil	46360
42-173-30930	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-30931	CONTINENTAL OIL COMPANY
42-173-30932	TOMLINSON OIL CO., INC.
42-173-30933	Belco Development Corporation	Oil
42-173-30934	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-30936	JM COX RESOURCES, L.P.	Oil	25441
42-173-30937	CROWNQUEST OPERATING, LLC	Oil	23719
42-173-30938	CROWNQUEST OPERATING, LLC	Oil	23719
42-173-30939	JM COX RESOURCES, L.P.	Oil	25441
42-173-30940	WAGNER & BROWN
42-173-30941	CONTINENTAL OIL COMPANY
42-173-30942	CONTINENTAL OIL COMPANY
42-173-30944	CONTINENTAL OIL COMPANY
42-173-30945	LOVELADY, IKE INC.
42-173-30946	AGGIETECH OIL, LTD.	Oil	40693
42-173-30947	ROBERTSON RESOURCES, INC.	Oil	23775
42-173-30948	WALDROP COMPANY
42-173-30949	CROWNQUEST OPERATING, LLC	Oil	25533
42-173-30950	ELLISON LEASE OPERATING	Oil	25263
42-173-30951	PG&E RESOURCES COMPANY	Oil	15400
42-173-30952	Texaco Inc.
42-173-30953	BC Operating, Inc.	Oil	12063
42-173-30954	INDIAN WELLS OIL COMPANY	Oil
42-173-30955	LOVELADY, IKE INC.
42-173-30956	DIAMONDBACK E&P LLC	Oil	25391
42-173-30957	NORTHSTAR OPERATING COMPANY	Oil	25432
42-173-30958	DIAMONDBACK E&P LLC	Oil	25418
42-173-30959	SMITH PIPE OF ABILENE	Oil	25423
42-173-30960	STANOLIND PRODUCTION LLC	Oil	25243
42-173-30961	DIAMONDBACK E&P LLC	Oil	25433
42-173-30962	LINGEN EXPLORATION, INC.	Oil
42-173-30963	JOY PETROLEUM CORP.
42-173-30964	LINGEN EXPLORATION, INC.
42-173-30965	LINGEN EXPLORATION, INC.
42-173-30966	INDEPENDENCE RESOURCES MGMT, LLC	Gas	120914
42-173-30967
42-173-30968	Sun Exploration & Production Co.
42-173-30969	DIAMONDBACK E&P LLC	Oil	25476
42-173-30970	DIAMONDBACK E&P LLC	Oil	25464
42-173-30972
42-173-30973	INDEPENDENCE RESOURCES MGMT, LLC	Oil	40593
42-173-30974	COLA PETROLEUM, INC.
42-173-30975	Hunt Oil Company	Oil	06398
42-173-30976	Hunt Oil Company	Oil	15569
42-173-30977	ENDEAVOR ENERGY RESOURCES L.P.	Oil	08826
42-173-30978	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06404
42-173-30979	LINGEN EXPLORATION, INC.
42-173-30980	CINNABAR OPERATING, LLC	Oil	25609
42-173-30981	JM COX RESOURCES, L.P.	Oil	25571
42-173-30982	LOVELADY, IKE INC.
42-173-30983	XTO ENERGY INC.	Oil	25434
42-173-30984	JM COX RESOURCES, L.P.	Oil	25571
42-173-30985	CROWNQUEST OPERATING, LLC	Oil	25586
42-173-30986	JM COX RESOURCES, L.P.	Oil	25571
42-173-30987	LOVELADY, IKE INC.
42-173-30988	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-173-30989	JM COX RESOURCES, L.P.	Oil	25571
42-173-30990	Basic Energy Services, L.P.	Oil	47985
42-173-30991	KING ENERGY RESOURCES	Oil	25529
42-173-30992	Apache Corporation	Oil	46386
42-173-30993	JM COX RESOURCES, L.P.	Oil	25573
42-173-30994	DIAMONDBACK E&P LLC	Oil	25418
42-173-30995	MWJ PRODUCING COMPANY
42-173-30996	CORONADO MINERALS, LLC	Oil	02808
42-173-30997	WAGNER & BROWN, LTD.	Oil	25243
42-173-30998	CROWNQUEST OPERATING, LLC	Oil	25539
42-173-30999	DIAMONDBACK E&P LLC	Oil	25682
42-173-31000	PARSLEY ENERGY OPERATIONS, LLC	Oil	25563
42-173-31001	WAGNER & BROWN, LTD.	Oil	52600
42-173-31002	PARKER & PARSLEY DEVELOPMENT L.P	Oil	07340
42-173-31003	Sanchez-O'Brien Oil & Gas Corp.
42-173-31004	ENDEAVOR ENERGY RESOURCES L.P.	Oil	09904
42-173-31005	ENDEAVOR ENERGY RESOURCES L.P.	Oil	09904
42-173-31006	Hunt Oil Company	Oil	08487
42-173-31008	SMITH PIPE OF ABILENE	Oil	25423
42-173-31009	ENDEAVOR ENERGY RESOURCES L.P.	Oil	25646
42-173-31010	ENDEAVOR ENERGY RESOURCES L.P.	Oil	25681
42-173-31011	ENDEAVOR ENERGY RESOURCES L.P.	Oil	25697
42-173-31012	NORTHSTAR OPERATING COMPANY	Oil	25432
42-173-31013	PARKER & PARSLEY DEVELOPMENT L.P	Oil	08054
42-173-31014
42-173-31015	DIAMONDBACK E&P LLC	Oil	25433
42-173-31016	COTTON PETROLEUM CORP.	Oil	25476
42-173-31017	DIAMONDBACK E&P LLC	Oil	25781
42-173-31018	DIAMONDBACK E&P LLC	Oil	25781
42-173-31019
42-173-31021	Hunt Oil Company	Oil	14594
42-173-31022	JOY PETROLEUM CORP.
42-173-31023	PHILLIPS WATER HAULING, INC.	Oil	08425
42-173-31024	DE3 OPERATING LLC	Oil	06423
42-173-31025	Hunt Oil Company	Oil	08487
42-173-31026	Hunt Oil Company	Oil	14594
42-173-31027	DIAMONDBACK E&P LLC	Oil	25464
42-173-31028	PARSLEY ENERGY OPERATIONS, LLC	Oil	25695
42-173-31029	DIAMONDBACK E&P LLC	Oil	25866
42-173-31030	DIAMONDBACK E&P LLC	Oil	25866
42-173-31031	Monsanto Company
42-173-31032	CROWNQUEST OPERATING, LLC	Oil	25713
42-173-31033	Hanover Management Co.
42-173-31034
42-173-31035	ROBERTSON RESOURCES, INC.	Oil	25810
42-173-31036	CROWNQUEST OPERATING, LLC	Oil	25586
42-173-31037	CINNABAR OPERATING, LLC	Oil	25910
42-173-31038	STANOLIND PRODUCTION LLC	Oil	24876
42-173-31039	PARSLEY ENERGY OPERATIONS, LLC	Oil	25892
42-173-31040	CROWNQUEST OPERATING, LLC	Oil	26302
42-173-31041	Hunt Oil Company	Oil	45041
42-173-31042	ESTORIL PRODUCING CORPORATION
42-173-31043	DISCOVERY NATURAL RESOURCES LLC	Oil	36817
42-173-31044	NADEL AND GUSSMAN PERMIAN,L.L.C.	Oil	25999
42-173-31045	CROWNQUEST OPERATING, LLC	Oil	26015
42-173-31046	DIAMONDBACK E&P LLC	Oil	25960
42-173-31047	ENCANA OIL & GAS(USA) INC.
42-173-31048	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-31049	LEONARD BROTHERS OPERATING CO.	Oil	26118
42-173-31050	DIAMONDBACK E&P LLC	Oil	25418
42-173-31051	INDEPENDENCE RESOURCES MGMT, LLC	Oil	25940
42-173-31052	INDEPENDENCE RESOURCES MGMT, LLC	Oil	25371
42-173-31053	PARKER & PARSLEY DEVELOPMENT L.P	Oil	08054
42-173-31054	PARKER & PARSLEY DEVELOPMENT L.P	Oil	08054
42-173-31055	DISCOVERY NATURAL RESOURCES LLC	Oil	40195
42-173-31056	CHAMPLIN PETROLEUM CO.	Oil
42-173-31057	LAREDO PETROLEUM, INC.	Oil	26090
42-173-31058	ROBERTSON RESOURCES, INC.	Oil	23775
42-173-31059	ROBERTSON RESOURCES, INC.	Oil	23775
42-173-31060	TORO PRODUCTION COMPANY, INC.	Oil	26111
42-173-31061	Amoco Production Company
42-173-31062	ARKLAND PRODUCING CO., INC.	Oil	26109
42-173-31063	MWJ PRODUCING COMPANY
42-173-31064	RSP PERMIAN, LLC	Oil	26191
42-173-31065	PALO PETROLEUM, INC.
42-173-31066	RSP PERMIAN, LLC	Oil	26191
42-173-31067	Triton Oil & Gas Corp.
42-173-31068	STEPHENS, AUTRY C.	Oil	08623
42-173-31070	MERIT ENERGY COMPANY	Oil	40195
42-173-31071	BETTIS, BOYLE & STOVALL	Oil	35761
42-173-31072	ARKLAND PRODUCING CO., INC.	Oil	26109
42-173-31073	Hunt Oil Company
42-173-31074	Hunt Oil Company
42-173-31075	CROWNQUEST OPERATING, LLC	Oil	26117
42-173-31076	ENDEAVOR ENERGY RESOURCES L.P.	Oil	26348
42-173-31077	PARSLEY ENERGY OPERATIONS, LLC	Oil	26714
42-173-31078	ENDEAVOR ENERGY RESOURCES L.P.	Oil	26204
42-173-31079	Hunt Oil Company	Oil	06279
42-173-31080	Hunt Oil Company	Oil	06279
42-173-31081	Hunt Oil Company	Oil	06279
42-173-31082	PIONEER NATURAL RES. USA, INC.	Oil	06277
42-173-31083	PIONEER NATURAL RES. USA, INC.	Oil	33801
42-173-31084	KENAI OIL AND GAS INC.	Oil
42-173-31085	SLEDGE, H. G.	Oil
42-173-31086	Lario Oil & Gas Company	Oil
42-173-31087	ANADARKO E&P COMPANY LP	Oil	37045
42-173-31088	HANSON CORPORATION	Oil
42-173-31089	PARKER & PARSLEY DEVELOPMENT L.P	Oil	08636
42-173-31090	PARKER & PARSLEY DEVELOPMENT L.P	Oil	08665
42-173-31091	5H OIL CO., LLC	Oil	26209
42-173-31092	5H OIL CO., LLC	Oil	41313
42-173-31093	KENAI OIL AND GAS INC.	Oil
42-173-31094	G & H TRANSPORT **	Oil	26404
42-173-31095	SMITH BROS. CASING PULLERS, INC.	Oil
42-173-31096	KING ENERGY RESOURCES	Oil	26421
42-173-31097	KENAI OIL AND GAS INC.
42-173-31098	STEPHENS, AUTRY C.	Oil	08691
42-173-31099	Hunt Oil Company	Oil	43797
42-173-31100	ODESSA EXPLORATION, INC.	Oil	08956
42-173-31101	PIONEER NATURAL RES. USA, INC.	Oil	27260
42-173-31102	HUGOTON ENERGY CORPORATION	Oil	26543
42-173-31103	CROWNQUEST OPERATING, LLC	Oil	36997
42-173-31104	COG OPERATING LLC	Oil	26891
42-173-31105	COG OPERATING LLC	Oil	26891
42-173-31106	DIAMONDBACK E&P LLC	Oil	26857
42-173-31107	ROYALTY LAND & DEV. CO., INC.	Oil	44028
42-173-31108	EDMAR COMPANY, L.L.C.	Oil	26476
42-173-31109	STEPHENS, AUTRY C.	Oil	08760
42-173-31110	BELCO PETROLEUM CORPORATION
42-173-31111	FED OPERATING LLC	Oil	52977
42-173-31112	CHAMPLIN PETROLEUM CO.
42-173-31113	RSP PERMIAN, LLC	Oil	26191
42-173-31114	BELCO PETROLEUM CORPORATION
42-173-31115	ALTA ENERGY CORPORATION	Oil
42-173-31116	Cox, John L.	Oil	26527
42-173-31117	WESTERN RESERVES OIL COMPANY INC	Oil	26678
42-173-31118	HMH OPERATORS
42-173-31119	DAVIS & CARR ENERGY CO.	Oil
42-173-31120	Bta Oil Producers	Oil
42-173-31121	HANSON CORPORATION
42-173-31122	Sanchez-O'Brien Oil & Gas Corp.	Oil
42-173-31123	NORTEX GAS & OIL COMPANY	Oil
42-173-31124	BISHOP, D. L.
42-173-31125	BISHOP, D. L.
42-173-31126	HANSON CORPORATION
42-173-31127	HANSON CORPORATION
42-173-31128	SEMPLE, CHARLES O.
42-173-31129	PARKER & PARSLEY DEVELOPMENT L.P	Oil	08665
42-173-31130	SOHIO PETROLEUM CO.
42-173-31131	GULF ENERGY PRODUCING COMPANY
42-173-31132	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-31133	GULF ENERGY PRODUCING COMPANY
42-173-31134	GULF ENERGY PRODUCING COMPANY
42-173-31135	GULF ENERGY PRODUCING COMPANY
42-173-31136	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-173-31137	PARKER & PARSLEY DEVELOPMENT L.P	Oil	08636
42-173-31138	Hunt Oil Company	Oil	06501
42-173-31139	HMH OPERATORS
42-173-31140	PARKER & PARSLEY DEVELOPMENT L.P	Oil	08636
42-173-31141	PETROLEUM CORP. OF DELAWARE, THE
42-173-31142	WAGNER & BROWN, LTD.	Oil	25243
42-173-31143	ENDEAVOR ENERGY RESOURCES L.P.	Oil	27114
42-173-31144	ROBERTSON RESOURCES, INC.	Oil	23775
42-173-31145	HMH OPERATORS
42-173-31146	DIAMONDBACK E&P LLC	Oil	26756
42-173-31147	DIAMONDBACK E&P LLC	Oil	26756
42-173-31148	BELCO PETROLEUM CORPORATION
42-173-31149	NORTHSTAR OPERATING COMPANY	Oil	27372
42-173-31150	ADAMS EXPLORATION CO.	Oil	26801
42-173-31151	JEM PETROLEUM CORPORATION
42-173-31152	FED OPERATING LLC	Oil	26744
42-173-31153	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-31154	CONOCOPHILLIPS COMPANY	Oil	02704
42-173-31155	Apache Corporation	Oil	46386
42-173-31156	BELCO PETROLEUM CORPORATION
42-173-31158	ROBERTSON RESOURCES, INC.	Oil	25810
42-173-31159	SOHIO NATURAL RESOURCES CO.
42-173-31160	Lomax Exploration Co.
42-173-31161	5H OIL CO., LLC	Oil	21840
42-173-31162	TEXAS CRUDE, INC.	Oil	09205
42-173-31163	5H OIL CO., LLC	Oil	19965
42-173-31164	5H OIL CO., LLC	Oil	41318
42-173-31165	5H OIL CO., LLC	Oil	26209
42-173-31166	PARKER & PARSLEY DEVELOPMENT L.P	Oil	07143
42-173-31167	GRAND BANKS ENERGY COMPANY
42-173-31168	SOHIO PETROLEUM CO.
42-173-31169	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06829
42-173-31170	Mapco Production Company
42-173-31171	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-31172	WESTERN RESERVES OIL COMPANY INC	Oil
42-173-31173	PARSLEY ENERGY OPERATIONS, LLC	Oil	26722
42-173-31174	WESTERN RESERVES OIL CO.
42-173-31175	COG OPERATING LLC	Oil	27288
42-173-31176	COG OPERATING LLC	Oil	27288
42-173-31177	COG OPERATING LLC	Oil	27288
42-173-31178	COG OPERATING LLC	Oil	27288
42-173-31179	COG OPERATING LLC	Oil	27288
42-173-31180	W.H.D., INC.
42-173-31181	MWS PRODUCING, INC.	Oil
42-173-31182	BANDERA ENERGY COMPANY
42-173-31183	BANDERA ENERGY COMPANY
42-173-31184	BANDERA ENERGY COMPANY
42-173-31185	CONOCOPHILLIPS COMPANY	Oil	02704
42-173-31186	Mapco Production Company
42-173-31187	KING ENERGY RESOURCES	Oil	26949
42-173-31189	STANOLIND PRODUCTION LLC	Oil	27658
42-173-31190	STANOLIND PRODUCTION LLC	Gas	158033
42-173-31191	Lario Oil & Gas Company	Oil	28375
42-173-31192	KING ENERGY RESOURCES	Gas	283117
42-173-31193	PIONEER NATURAL RES. USA, INC.	Oil	26795
42-173-31194	XTO ENERGY INC.	Gas	097866
42-173-31195	PG&E RESOURCES COMPANY	Oil	15400
42-173-31196	VENTURE EQUIPMENT, INC.	Oil	27500
42-173-31197	VENTURE EQUIPMENT, INC.	Oil	27202
42-173-31198	XTO ENERGY INC.	Oil	27261
42-173-31199	CONOCOPHILLIPS COMPANY	Oil	02704
42-173-31201	Sanchez-O'Brien Oil & Gas Corp.
42-173-31202	INDEPENDENCE RESOURCES MGMT, LLC	Oil	45041
42-173-31203	BOYD & MCWILLIAMS ENERGY GROUP	Oil	27087
42-173-31204	NADEL AND GUSSMAN PERMIAN,L.L.C.	Oil	27333
42-173-31205	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-173-31206	WESTERN RESERVES OIL CO.
42-173-31207	SMITH PIPE OF ABILENE	Oil	27674
42-173-31208	HMH OPERATORS
42-173-31209	ROBERTSON RESOURCES, INC.	Oil	17120
42-173-31210	STANOLIND PRODUCTION LLC	Oil	25243
42-173-31211	GOLDEN SPECIALTIES OIL & GAS	Oil	26821
42-173-31212	HAMILL RESOURCES, INC.
42-173-31213	Bta Oil Producers	Oil	26993
42-173-31214	Mapco Production Company
42-173-31215	ROYALTY LAND & DEV. CO., INC.	Oil	39455
42-173-31216	STANOLIND PRODUCTION LLC	Oil	27658
42-173-31217	DIAMONDBACK E&P LLC	Oil	25682
42-173-31218	MANHATTAN PETROLEUM, INC.	Oil	39367
42-173-31219	DIAMONDBACK E&P LLC	Oil	25391
42-173-31220	MDC OPERATING, INC.	Oil	27336
42-173-31221	WOOD & LOCKER, INC.
42-173-31222	WOOD & LOCKER, INC.
42-173-31223	WOOD & LOCKER, INC.
42-173-31224	PIONEER NATURAL RES. USA, INC.	Oil	26980
42-173-31225	STANOLIND PRODUCTION LLC	Oil	27659
42-173-31227	U S ENERGY CORP. OF AMER. INC.	Oil	52665
42-173-31228	EASTERN PETROLEUM COMPANY	Oil	27370
42-173-31229	MDC OPERATING, INC.	Oil	27397
42-173-31231	PARSLEY ENERGY OPERATIONS, LLC	Oil	53418
42-173-31232	ENDEAVOR ENERGY RESOURCES L.P.	Oil	27117
42-173-31233	ESTORIL PRODUCING CORPORATION
42-173-31234	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-31235	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-31236	BEACH EXPLORATION, INC.	Oil
42-173-31237	ROYALTY LAND & DEV. CO., INC.	Oil	39455
42-173-31238	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-173-31239	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-173-31240	ENDEAVOR ENERGY RESOURCES L.P.	Oil	27629
42-173-31241	TRIAX OIL & GAS, INC.
42-173-31242
42-173-31243	Texaco Inc.
42-173-31244	LEONARD BROTHERS OPERATING CO.	Oil	30722
42-173-31245	SOHIO PETROLEUM CO.
42-173-31246	PARKER & PARSLEY DEVELOPMENT L.P	Oil	09519
42-173-31247	TRIAX OIL & GAS, INC.
42-173-31248	PURVIS OPERATING CO.	Oil	27785
42-173-31249	MDC OPERATING, INC.	Oil	27276
42-173-31250	PALO PETROLEUM, INC.	Oil
42-173-31251	PALO PETROLEUM, INC.
42-173-31252	EASTERN PETROLEUM COMPANY	Oil	27292
42-173-31253	Davis Oil Company
42-173-31254	CINNABAR OPERATING, LLC	Oil	47168
42-173-31255	KING ENERGY RESOURCES	Gas	283118
42-173-31256	PALO PETROLEUM, INC.	Oil
42-173-31257	PALO PETROLEUM, INC.	Oil
42-173-31258	PALO PETROLEUM, INC.
42-173-31259	Damson Oil Corp.	Oil	33339
42-173-31260	W.H.D., INC.
42-173-31261	MWS PRODUCING, INC.	Oil
42-173-31262	PAPETCO, INC.	Oil
42-173-31263	O.I.L. ENERGY, INC.	Oil
42-173-31264	PARSLEY ENERGY OPERATIONS, LLC	Oil	26993
42-173-31265	KING ENERGY RESOURCES	Oil	26421
42-173-31266	KING ENERGY RESOURCES	Oil	27467
42-173-31267	Bta Oil Producers	Oil
42-173-31268	HCW EXPLORATION, INC.
42-173-31269	KING ENERGY RESOURCES	Oil	26421
42-173-31270	PARKER & PARSLEY DEVELOPMENT L.P	Oil	09519
42-173-31271	DIAMOND CHEMICALS COMPANY
42-173-31272	L & B OIL CO. INC.	Oil	29368
42-173-31273	DIAMOND CHEMICALS COMPANY
42-173-31274	DIAMOND CHEMICALS COMPANY
42-173-31275	ENDEAVOR ENERGY RESOURCES L.P.	Oil	45855
42-173-31276	HENDON EXPLORATION, INC.	Oil	30510
42-173-31277	PARSLEY ENERGY OPERATIONS, LLC	Oil	51870
42-173-31278	PARKER & PARSLEY DEVELOPMENT L.P	Oil	09519
42-173-31279	PARKER & PARSLEY DEVELOPMENT L.P	Oil	09519
42-173-31280	BEACH EXPLORATION, INC.	Oil	27679
42-173-31281	WOOD & LOCKER, INC.	Oil	28052
42-173-31283	Bta Oil Producers	Oil
42-173-31284	DIAMOND CHEMICALS COMPANY
42-173-31285	MEG PETROLEUM CORP.
42-173-31286	HENDON EXPLORATION, INC.	Gas	117838
42-173-31287	L & B OIL CO. INC.	Oil	44211
42-173-31288	L & B OIL CO. INC.
42-173-31289	WOOD & LOCKER, INC.
42-173-31290	WOOD & LOCKER, INC.
42-173-31291	HENDON, WILLIAM E., JR.	Oil
42-173-31292	WAGNER & BROWN	Oil	29728
42-173-31293	WESTERN RESERVES OIL CO.
42-173-31294	HCW EXPLORATION, INC.	Oil
42-173-31295	Bta Oil Producers
42-173-31296	MWS PRODUCING, INC.	Oil	27253
42-173-31297	Hunt Oil Company	Oil	43797
42-173-31298	LOVELADY, IKE INC.
42-173-31299	WESTERN RESERVES OIL CO.
42-173-31300	ROBERTSON RESOURCES, INC.	Oil	23775
42-173-31301	Apache Corporation	Oil	31050
42-173-31302
42-173-31303	WESTERN RESERVES OIL CO.
42-173-31304	WESTERN RESERVES OIL CO.
42-173-31305	ROBERTSON RESOURCES, INC.	Oil	17432
42-173-31306	HENDON EXPLORATION, INC.	Oil	29104
42-173-31307
42-173-31308	DRACO ENERGY, INC.	Oil	27591
42-173-31309	ADAMS EXPLORATION CO.
42-173-31310	ADAMS EXPLORATION CO.
42-173-31311	PURVIS OPERATING CO.	Oil	27698
42-173-31312	Bta Oil Producers	Oil	27533
42-173-31313	GRAND BANKS ENERGY COMPANY	Oil	32666
42-173-31315	Kilroy Company Of Texas, Inc.
42-173-31316	Bta Oil Producers
42-173-31317	CROCKETT GAS LIMITED
42-173-31318	L & B OIL CO. INC.	Oil
42-173-31319	JACKSON EXPLORATION, INC.
42-173-31320	LOVELADY, IKE INC.
42-173-31322	POGO PRODUCING COMPANY
42-173-31323	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-173-31324	Bta Oil Producers
42-173-31325	L & B OIL CO. INC.
42-173-31326	Dorchester Exploration, Inc.
42-173-31328	WAGNER & BROWN, LTD.	Oil	24876
42-173-31329	STANOLIND PRODUCTION LLC	Gas	285888
42-173-31330	STANOLIND PRODUCTION LLC	Gas	285850
42-173-31331	STANOLIND PRODUCTION LLC	Gas	217482
42-173-31332	STANOLIND PRODUCTION LLC	Oil	27658
42-173-31333	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-173-31334	PARKER & PARSLEY DEVELOPMENT L.P	Oil	14626
42-173-31335
42-173-31336	L & B OIL CO. INC.	Oil	32080
42-173-31337	MABEE PETROLEUM CORP.	Oil	51018
42-173-31338	L & B OIL CO. INC.
42-173-31340	U S ENERGY CORP. OF AMER. INC.	Oil	28076
42-173-31341	Hunt Oil Company	Oil	06401
42-173-31342	HANLEY PETROLEUM INC.
42-173-31343	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-31344	CONOCOPHILLIPS COMPANY	Oil	10806
42-173-31345	CLEAR WATER INC.	Gas	225574
42-173-31346	MYERS, PHILIP
42-173-31347	H & O OPERATING CO. INC.	Oil	27706
42-173-31348	Mapco Production Company
42-173-31349	L & B OIL CO. INC.	Oil
42-173-31350	GLOSSOP, ROBERT L.	Oil	27893
42-173-31351	DIAMONDBACK E&P LLC	Oil	27874
42-173-31352	MDC OPERATING, INC.	Oil
42-173-31353	Hunt Oil Company	Oil	06400
42-173-31354	MWS PRODUCING, INC.	Oil	27253
42-173-31355	KING ENERGY RESOURCES	Oil	26421
42-173-31356	Hunt Oil Company	Oil	06596
42-173-31357	MWS PRODUCING, INC.	Oil
42-173-31358	Davis Oil Company
42-173-31359	ROYALTY LAND & DEV. CO., INC.	Oil	39424
42-173-31360	ENERGEN RESOURCES CORPORATION	Oil	27874
42-173-31361	LIMARK CORPORATION	Oil	27943
42-173-31362	L & B OIL CO. INC.	Gas	177478
42-173-31363	DRACO ENERGY, INC.	Oil	27841
42-173-31364	JMW RESOURCES, INC.	Oil	28116
42-173-31365	SPECTRUM OIL & GAS CO.
42-173-31366	SPECTRUM OIL & GAS CO.
42-173-31367	Bta Oil Producers
42-173-31368	ENDURO OIL COMPANY INC.	Oil
42-173-31369	L & B OIL CO. INC.	Oil	28803
42-173-31370
42-173-31371	Bta Oil Producers
42-173-31372	SMITH PIPE OF ABILENE	Oil	28024
42-173-31373	BROWN, TOM INC.
42-173-31374	EDWARDS EXPLORATION COMPANY	Oil	41113
42-173-31375	DEVON ENERGY CORPORATION(NEVADA)	Oil	06651
42-173-31376	HENDON, WILLIAM E., JR.
42-173-31377	PARSLEY ENERGY OPERATIONS, LLC	Oil	47265
42-173-31378	WOOD & LOCKER, INC.	Oil
42-173-31379	PARSLEY ENERGY OPERATIONS, LLC	Oil	27996
42-173-31380	L & B OIL CO. INC.
42-173-31381	PARKER & PARSLEY DEVELOPMENT L.P	Oil	12142
42-173-31382	BEACH EXPLORATION, INC.	Oil	27679
42-173-31384	SUTTON, ROBERT E. OPER. CO, INC.	Oil	27956
42-173-31385	PARSLEY ENERGY OPERATIONS, LLC	Oil	27977
42-173-31386	PARSLEY ENERGY OPERATIONS, LLC	Oil	27977
42-173-31387	Apache Corporation	Oil	28017
42-173-31388	VENTURE EQUIPMENT, INC.	Oil	28621
42-173-31389	VENTURE EQUIPMENT, INC.	Oil	28157
42-173-31390	WOOD & LOCKER, INC.
42-173-31391	BRYANS, LEONARD	Oil	28179
42-173-31392	Texaco Inc.
42-173-31393	MWJ PRODUCING COMPANY	Oil	28178
42-173-31394	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-31395	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-31396	Apache Corporation	Oil	06311
42-173-31397	LEONARD RESOURCES
42-173-31398	WOOD & LOCKER, INC.
42-173-31399	BELCHER, R. K. INC.
42-173-31400	PARSLEY ENERGY OPERATIONS, LLC	Gas	181731
42-173-31401	PARSLEY ENERGY OPERATIONS, LLC	Oil	51365
42-173-31402	REPUBLIC EES, LLC	Oil	29032
42-173-31403	DRACO ENERGY, INC.	Oil	27841
42-173-31404	PARTEN, J. R.
42-173-31405	PARSLEY ENERGY OPERATIONS, LLC	Oil	27996
42-173-31406	PARSLEY ENERGY OPERATIONS, LLC	Oil	54161
42-173-31407
42-173-31408	BEACH EXPLORATION, INC.
42-173-31409	PARSLEY ENERGY OPERATIONS, LLC	Oil	24893
42-173-31410	PARSLEY ENERGY OPERATIONS, LLC	Gas	284531
42-173-31411	Legacy Reserves Operating LP	Oil	52785
42-173-31412	Getty Oil Co.
42-173-31413	EXXON CORP.	Gas	219583
42-173-31414	ATROPOS EXPLORATION COMPANY
42-173-31415	CORONADO MINERALS, LLC	Oil	41111
42-173-31416	Bta Oil Producers
42-173-31417	Bta Oil Producers
42-173-31418	DIAMONDBACK E&P LLC	Oil	28463
42-173-31419	COG OPERATING LLC	Oil	23203
42-173-31420	OVINTIV USA INC.	Oil	28212
42-173-31421	Bta Oil Producers
42-173-31422	CARRLAND OIL & GAS INC.	Oil	28606
42-173-31424	Bta Oil Producers
42-173-31425	PARSLEY ENERGY OPERATIONS, LLC	Oil	52845
42-173-31426	PARSLEY ENERGY OPERATIONS, LLC	Oil
42-173-31427	PARSLEY ENERGY OPERATIONS, LLC	Oil	54158
42-173-31428	STANDARD OIL PRODUCTION COMPANY	Oil	13720
42-173-31429	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-173-31430	BTA OIL PRODUCERS, LLC	Oil	28681
42-173-31431	BTA OIL PRODUCERS, LLC	Oil	43986
42-173-31432	Bta Oil Producers	Oil
42-173-31433	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-31434
42-173-31435	PARSLEY ENERGY OPERATIONS, LLC	Oil	28427
42-173-31436	SUNDOWN ENERGY LP	Gas	146867
42-173-31437
42-173-31438	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-173-31439	SOHIO PETROLEUM CO.
42-173-31440	SOHIO PETROLEUM CO.
42-173-31441	Bta Oil Producers	Oil
42-173-31442	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37092
42-173-31443	Maxus Exploration Company	Oil
42-173-31444	SOHIO PETROLEUM CO.
42-173-31445	SOHIO PETROLEUM CO.
42-173-31446	COSTILLA PETROLEUM CORPORATION	Oil
42-173-31447	L & B OIL CO. INC.
42-173-31448	ENERGEN RESOURCES CORPORATION	Oil	47956
42-173-31449	DE3 OPERATING LLC	Oil	49673
42-173-31450	DUNIGAN, JAMES P., INC.	Oil
42-173-31451	OVINTIV USA INC.	Oil	22750
42-173-31452	Petroleum Equities Corp.
42-173-31453	Petroleum Equities Corp.
42-173-31454	Petroleum Equities Corp.
42-173-31455	Petroleum Equities Corp.
42-173-31456	SUTTON, ROBERT E. OPER. CO, INC.	Oil	27956
42-173-31457	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06329
42-173-31458	Apache Corporation	Oil
42-173-31459	BEACH EXPLORATION, INC.	Oil
42-173-31460	Kimbark Oil & Gas Company	Oil
42-173-31461	LACANA MINING, INC.
42-173-31462	STEPHENS, AUTRY C.	Oil	07154
42-173-31463	STEPHENS, AUTRY C.	Oil	07154
42-173-31464	SABRE OPERATING, INC.	Oil	28653
42-173-31465	RP OPERATING, L.L.C.	Oil	52966
42-173-31466	B & G ENERGY CORPORATION	Oil	30746
42-173-31467	B & G ENERGY CORPORATION	Oil	30747
42-173-31468	HENDRIX, JOHN H.
42-173-31469	EXXON CORP.	Oil
42-173-31470	ORBIT CRUDE, INC.	Oil	42512
42-173-31471	PARSLEY ENERGY OPERATIONS, LLC	Oil	32502
42-173-31472	Bta Oil Producers	Oil	28560
42-173-31473	PARSLEY ENERGY OPERATIONS, LLC	Oil	24893
42-173-31474	OXY USA INC.	Oil	52528
42-173-31475	SUN EXPL. & PROD. CO.-MIDLAND
42-173-31476	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06404
42-173-31477	Cox, John L.	Oil
42-173-31478	Coastal Oil & Gas Corporation	Oil
42-173-31479	EXXON CORP.	Oil
42-173-31480	PARSLEY ENERGY OPERATIONS, LLC	Oil	54161
42-173-31481
42-173-31482	Hunt Oil Company	Oil	21301
42-173-31483
42-173-31484
42-173-31485	TEXACO E & P INC.	Oil	28472
42-173-31486	HENDON WM E. JR. REV LVNG TRUST	Oil	29533
42-173-31487	GLOBAL WEST EXPLORATION INC.	Oil	28739
42-173-31488	BRYANS, LEONARD	Oil	37510
42-173-31489	EXXON CORP.
42-173-31490	EXXON CORP.
42-173-31491	HUFF, JACK	Oil	35617
42-173-31492	PIONEER NATURAL RES. USA, INC.	Oil	06607
42-173-31493	PARSLEY ENERGY OPERATIONS, LLC	Oil
42-173-31494	PARSLEY ENERGY OPERATIONS, LLC	Oil	52845
42-173-31495	PARSLEY ENERGY OPERATIONS, LLC	Oil	26714
42-173-31496	Bta Oil Producers	Oil	28560
42-173-31497	DE3 OPERATING LLC	Gas	135177
42-173-31498	ESTORIL PRODUCING CORPORATION
42-173-31499	DIAMONDBACK E&P LLC	Gas	177479
42-173-31500	ROYALTY LAND & DEV. CO., INC.	Oil	28869
42-173-31501	U S ENERGY CORP. OF AMER. INC.	Oil	30460
42-173-31502	PARSLEY ENERGY OPERATIONS, LLC	Oil	52971
42-173-31503	WEST TEXAS OIL AND GAS OPER.,INC
42-173-31504	TEXACO E & P INC.	Oil	28472
42-173-31505	LOVELADY, IKE INC.
42-173-31506	Bta Oil Producers	Oil
42-173-31507	PARSLEY ENERGY OPERATIONS, LLC	Oil	44324
42-173-31508
42-173-31509	BTA OIL PRODUCERS, LLC	Oil
42-173-31510	PARKER & PARSLEY DEVELOPMENT L.P	Oil	07340
42-173-31511	Hunt Oil Company	Oil	08908
42-173-31512	COG OPERATING LLC	Gas	248636
42-173-31513	PARKER & PARSLEY DEVELOPMENT L.P	Oil	07340
42-173-31514	PARSLEY ENERGY OPERATIONS, LLC	Oil	28427
42-173-31515
42-173-31516	MEWBOURNE OIL COMPANY
42-173-31517	DIAMOND SHAMROCK EXPLORATION CO.
42-173-31518	R. K. G. ENGINEERING, INC.
42-173-31519	NEWPORT PETROLEUMS, INC.
42-173-31520	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-31521	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-31522
42-173-31523	Coastal Oil & Gas Corporation	Oil	28776
42-173-31525	Texaco Inc.
42-173-31526	KEJO RESOURCES, INC.
42-173-31527	Coquina Oil Corporation
42-173-31528	Coquina Oil Corporation
42-173-31529	Davis Oil Company
42-173-31531
42-173-31532	Coastal Oil & Gas Corporation
42-173-31533
42-173-31534	COSTA RESOURCES, INC.
42-173-31536	PARSLEY ENERGY OPERATIONS, LLC	Oil	47265
42-173-31537	Bta Oil Producers
42-173-31538	PARSLEY ENERGY OPERATIONS, LLC	Oil
42-173-31539	Coastal Oil & Gas Corporation
42-173-31540	Bta Oil Producers
42-173-31541
42-173-31542	Apache Corporation	Oil	28709
42-173-31543	CORONADO MINERALS, LLC	Oil	41111
42-173-31544	MWJ PRODUCING COMPANY	Oil	46864
42-173-31545	Apache Corporation	Oil	28709
42-173-31546	Bta Oil Producers
42-173-31547
42-173-31548	OVINTIV USA INC.	Oil	22759
42-173-31549
42-173-31550	PARSLEY ENERGY OPERATIONS, LLC	Oil	27996
42-173-31551
42-173-31552
42-173-31553	SMITH & MARRS INC.	Oil	29997
42-173-31554	Conquest Exploration Company	Gas	276595
42-173-31555	PURVIS OPERATING CO.	Oil	29066
42-173-31556	BADGER OIL CORPORATION	Oil	29073
42-173-31557	CHEYENNE RESOURCES
42-173-31558	DE3 OPERATING LLC	Oil	24184
42-173-31559	Mitchell Energy Corporation
42-173-31560	ENDEAVOR ENERGY RESOURCES L.P.	Oil	09308
42-173-31561	Anadarko Production Company
42-173-31562	STANOLIND PRODUCTION LLC	Oil	29048
42-173-31563	EXXON CORP.	Oil
42-173-31564	MANHATTAN PETROLEUM, INC.	Oil	38464
42-173-31565	Davis Oil Company
42-173-31566	B & G ENERGY CORPORATION	Oil	28941
42-173-31567	DIAMOND SHAMROCK EXPLORATION CO.
42-173-31568	XTO ENERGY INC.	Oil	29179
42-173-31569	XTO ENERGY INC.	Oil	29043
42-173-31570	VENTEX OPERATING CORP.	Oil	32348
42-173-31571	EXXON CORP.
42-173-31572	EXXON CORP.	Oil
42-173-31573	FRENCH, L. R., JR.	Oil
42-173-31574	JM COX RESOURCES, L.P.	Oil	28067
42-173-31575	Union Texas Petroleum Corp.
42-173-31576	CHAPMAN EXPLORATION, INC.	Oil
42-173-31577
42-173-31578	CORONADO MINERALS, LLC	Oil	28979
42-173-31579	CORONADO MINERALS, LLC	Oil	28979
42-173-31580	CORONADO MINERALS, LLC	Oil	28979
42-173-31581	XTO ENERGY INC.	Oil	29220
42-173-31582	CORONADO MINERALS, LLC	Oil	28981
42-173-31583	MONSANTO OIL COMPANY
42-173-31584
42-173-31585	PARSLEY ENERGY OPERATIONS, LLC	Oil	51368
42-173-31586	EXXON MOBIL CORPORATION	Gas	152445
42-173-31587	Legacy Reserves Operating LP	Oil	29255
42-173-31588
42-173-31589	KEJO RESOURCES, INC.	Oil
42-173-31590	ARKLAND PRODUCING CO., INC.	Oil	45784
42-173-31591	ENDEAVOR ENERGY RESOURCES L.P.	Oil	29069
42-173-31592	T.G.B., INC.	Oil	32146
42-173-31593
42-173-31594	DIAMOND SHAMROCK EXPLORATION CO.
42-173-31595	OXY USA INC.	Oil	29796
42-173-31596	STILES, TAMARA	Oil
42-173-31597	PARSLEY ENERGY OPERATIONS, LLC	Oil	27958
42-173-31598	HENDON EXPLORATION, INC.
42-173-31599	PARSLEY ENERGY OPERATIONS, LLC	Oil	26993
42-173-31600	EXXON CORP.	Oil
42-173-31601	STEEN & DANIEL OPERATING, INC.	Oil	53794
42-173-31602	EXXON CORP.
42-173-31603	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-31604	XTO ENERGY INC.	Oil	29307
42-173-31605	Bta Oil Producers
42-173-31606	PARSLEY ENERGY OPERATIONS, LLC	Oil	52749
42-173-31607	EDWARDS EXPLORATION COMPANY
42-173-31608	EDWARDS EXPLORATION COMPANY
42-173-31609	EDWARDS EXPLORATION COMPANY
42-173-31610	EDWARDS EXPLORATION COMPANY
42-173-31611	CHEYENNE RESOURCES	Oil	29796
42-173-31612	Coastal Oil & Gas Corporation	Oil	29054
42-173-31613	ARKLAND PRODUCING CO., INC.	Oil	29116
42-173-31614	STANOLIND PRODUCTION LLC	Gas	221217
42-173-31615	THOMPSON, J. CLEO	Oil	29028
42-173-31616	PARSLEY ENERGY OPERATIONS, LLC	Oil	52926
42-173-31617	Union Texas Petroleum Corp.	Oil	32039
42-173-31618
42-173-31619	XTO ENERGY INC.	Oil	29129
42-173-31620	SOUTHWEST ROYALTIES, INC.	Oil	29177
42-173-31621	Coastal Oil & Gas Corporation
42-173-31622	DIAMONDBACK E&P LLC	Oil	29689
42-173-31623	EXXON CORP.	Oil
42-173-31624
42-173-31625	BADGER OIL CORPORATION	Oil	29304
42-173-31626
42-173-31627	PARSLEY ENERGY OPERATIONS, LLC	Oil	23946
42-173-31628	KLM PETROLEUM CORP.	Oil	40408
42-173-31629
42-173-31630
42-173-31631	MONSANTO OIL COMPANY
42-173-31632	OCCIDENTAL PERMIAN LTD.	Gas	206681
42-173-31633	Bta Oil Producers
42-173-31634	MONSANTO OIL COMPANY
42-173-31635
42-173-31637	PARSLEY ENERGY OPERATIONS, LLC	Oil	28560
42-173-31638
42-173-31639	Union Texas Petroleum Corp.	Oil	32512
42-173-31640	HARDING WELL SERVICE CO.
42-173-31641	BADGER OIL CORPORATION
42-173-31642	POGO PRODUCING COMPANY
42-173-31643	HRUBETZ OIL COMPANY	Oil	02771
42-173-31644	5H OIL CO., LLC	Oil	19965
42-173-31645	HRUBETZ OIL COMPANY	Oil	19363
42-173-31646	HRUBETZ OPERATING COMPANY	Oil	19350
42-173-31647	Bta Oil Producers
42-173-31648	Bta Oil Producers
42-173-31649	ROYALTY LAND & DEV. CO., INC.	Oil	52058
42-173-31650
42-173-31651	SUNDOWN ENERGY LP	Oil	28518
42-173-31652	HENDON EXPLORATION, INC.	Oil
42-173-31653	DIAMOND SHAMROCK EXPLORATION CO.
42-173-31654	BURLESON PETROLEUM, INC.	Oil	29366
42-173-31655	CONOCOPHILLIPS COMPANY	Oil	41246
42-173-31656
42-173-31657	CHEYENNE RESOURCES	Oil	29796
42-173-31658	5H OIL CO., LLC	Oil	19965
42-173-31659	DRACO ENERGY, INC.	Oil	43262
42-173-31660	5H OIL CO., LLC	Oil	19350
42-173-31661	5H OIL CO., LLC	Oil	41318
42-173-31662	5H OIL CO., LLC	Oil	19965
42-173-31663	5H OIL CO., LLC	Oil	19965
42-173-31664	XTO ENERGY INC.	Oil	29427
42-173-31665	DE3 OPERATING LLC	Oil	24025
42-173-31666	Bta Oil Producers
42-173-31667	EDWARDS EXPLORATION COMPANY
42-173-31668	5H OIL CO., LLC	Oil	41317
42-173-31669	5H OIL CO., LLC	Oil	19350
42-173-31670
42-173-31671
42-173-31672	MHF OPERATING COMPANY, INC.
42-173-31673	XTO ENERGY INC.	Oil	25434
42-173-31674	XTO ENERGY INC.	Gas	134836
42-173-31675	ENDEAVOR ENERGY RESOURCES L.P.	Oil	29069
42-173-31676	ENDEAVOR ENERGY RESOURCES L.P.	Oil	29448
42-173-31677	Bta Oil Producers
42-173-31678	ENDEAVOR ENERGY RESOURCES L.P.	Oil	27117
42-173-31679	MWJ PRODUCING COMPANY	Oil	30753
42-173-31681	XTO ENERGY INC.	Gas	136414
42-173-31682	SANTA FE MINERALS, INC.
42-173-31683	PARSLEY ENERGY OPERATIONS, LLC	Oil	52845
42-173-31684	BTA OIL PRODUCERS, LLC	Oil	27958
42-173-31685
42-173-31686	DIAMOND SHAMROCK EXPLORATION CO.
42-173-31687	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24461
42-173-31688	CHAPMAN EXPLORATION, INC.
42-173-31689	Texaco Inc.	Oil	25434
42-173-31690	XTO ENERGY INC.	Oil	25434
42-173-31691	XTO ENERGY INC.	Oil	25434
42-173-31692	TYMD PRODUCTION, INC.
42-173-31693	Bta Oil Producers
42-173-31694	Bta Oil Producers	Oil	28560
42-173-31695	CLEAR WATER INC.	Gas	225576
42-173-31696	CHAPMAN EXPLORATION, INC.
42-173-31697	5H OIL CO., LLC	Oil	41318
42-173-31698	PARSLEY ENERGY OPERATIONS, LLC	Oil	26993
42-173-31699	EXXON CORP.	Oil	29458
42-173-31700	PHILLIPS WATER HAULING, INC.	Oil	44742
42-173-31701	PHILLIPS WATER HAULING, INC.	Oil	08425
42-173-31702	ROYALTY LAND & DEV. CO., INC.	Oil	52058
42-173-31703	DE3 OPERATING LLC	Oil	29846
42-173-31704	HENDON EXPLORATION, INC.	Oil
42-173-31705	Bta Oil Producers
42-173-31706	XTO ENERGY INC.	Oil	54441
42-173-31707	EXXON CORP.	Gas	178189
42-173-31708	COG OPERATING LLC	Oil	53012
42-173-31709
42-173-31710	SANTA FE MINERALS, INC.
42-173-31711	PATRIOT PRODUCTION LLC	Oil	29495
42-173-31712	H & O OPERATING CO. INC.	Oil	27706
42-173-31713
42-173-31714	DIAMOND SHAMROCK EXPLORATION CO.
42-173-31715	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-31716	TREND EXPLORATION COMPANY	Oil	30035
42-173-31717	Kaneb Operating Company, Ltd.	Oil
42-173-31718	Bta Oil Producers	Oil
42-173-31719
42-173-31720
42-173-31721
42-173-31722
42-173-31723	PURVIS OPERATING CO.	Oil	29066
42-173-31724	EXXON CORP.	Oil	35890
42-173-31725	SMITH & MARRS INC.	Oil	29982
42-173-31726
42-173-31727	CURRIE CATTLE CO.	Oil	31414
42-173-31728
42-173-31729	Bta Oil Producers
42-173-31730	MWJ PRODUCING COMPANY	Oil
42-173-31731
42-173-31732	Union Texas Petroleum Corp.	Oil	29956
42-173-31733	Bta Oil Producers
42-173-31734	EXXON MOBIL CORPORATION	Oil	29791
42-173-31735	Texaco Inc.
42-173-31736	EXXON CORP.	Oil	44451
42-173-31737	EXXON CORP.	Oil
42-173-31738	ENDEAVOR ENERGY RESOURCES L.P.	Oil	52791
42-173-31739	ENDEAVOR ENERGY RESOURCES L.P.	Oil	29448
42-173-31740	PURVIS OPERATING CO.	Oil	27785
42-173-31741	Bta Oil Producers
42-173-31742	PARSLEY ENERGY OPERATIONS, LLC	Oil	52971
42-173-31743	RSP PERMIAN, LLC	Oil	21571
42-173-31744	RSP PERMIAN, LLC	Oil	21571
42-173-31745	Bta Oil Producers
42-173-31746	PARSLEY ENERGY OPERATIONS, LLC	Oil	29304
42-173-31747	MAPCO OIL & GAS COMPANY
42-173-31748	WAGNER & BROWN	Oil	25243
42-173-31749	SOHIO PETROLEUM CO.
42-173-31750	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-31751
42-173-31752	CY CO. ENERGY, INC.
42-173-31753	Legacy Reserves Operating LP	Oil	29255
42-173-31754	B & G ENERGY CORPORATION	Oil	30747
42-173-31755
42-173-31756	STANOLIND PRODUCTION LLC	Gas	146996
42-173-31757	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-31758	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-31759	DE3 OPERATING LLC	Oil	06423
42-173-31760
42-173-31761	STANOLIND PRODUCTION LLC	Oil	29076
42-173-31762	SUNDOWN ENERGY LP	Gas	136412
42-173-31763	PERMIAN RESOURCES, INC.	Oil	29714
42-173-31764	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-173-31765	PARSLEY ENERGY OPERATIONS, LLC	Gas	246996
42-173-31766
42-173-31767
42-173-31768	HENDON EXPLORATION, INC.
42-173-31769	PARSLEY ENERGY OPERATIONS, LLC	Oil	52845
42-173-31770
42-173-31771	FREEPORT SULPHUR CO.
42-173-31772	MEWBOURNE OIL COMPANY	Oil	40015
42-173-31773	PARSLEY ENERGY OPERATIONS, LLC	Gas	279883
42-173-31774	PARSLEY ENERGY OPERATIONS, LLC	Oil	30756
42-173-31775	5H OIL CO., LLC	Oil	19350
42-173-31776	Amoco Production Company	Oil	23191
42-173-31777	Amoco Production Company	Oil	29802
42-173-31778	KANEB PRODUCTION COMPANY
42-173-31779
42-173-31780	CY CO. ENERGY, INC.
42-173-31781
42-173-31782	MWS PRODUCING, INC.	Oil
42-173-31783	PARSLEY ENERGY OPERATIONS, LLC	Oil	52971
42-173-31784	Kaneb Oil & Gas Company	Oil
42-173-31785	KANEB PRODUCTION COMPANY
42-173-31786	Hunt Oil Company	Oil	29741
42-173-31787	PARSLEY ENERGY OPERATIONS, LLC	Oil	30568
42-173-31788	VERITAS ENERGY, LLC	Oil	29752
42-173-31789	EXXON CORP.	Oil	35583
42-173-31790	CY CO. ENERGY, INC.
42-173-31791	Great Western Drilling Company	Oil	31926
42-173-31792	5H OIL CO., LLC	Oil	21840
42-173-31793	PRIME OPERATING COMPANY	Oil	29959
42-173-31794	PRIME OPERATING COMPANY	Oil	29959
42-173-31795	FRENCH, L. R., JR.
42-173-31796
42-173-31797	PERMIAN RESOURCES, INC.
42-173-31798	ENDEAVOR ENERGY RESOURCES L.P.	Oil	29663
42-173-31799	DIAMONDBACK E&P LLC	Gas	225829
42-173-31800	EXXON CORP.	Oil
42-173-31801	Conquest Exploration Company
42-173-31802
42-173-31803	CIMAREX ENERGY CO. OF COLORADO	Oil	42224
42-173-31804	SUNDOWN ENERGY LP	Oil	28518
42-173-31805	SUNDOWN ENERGY LP	Gas	136423
42-173-31806	PARSLEY ENERGY OPERATIONS, LLC	Oil	51365
42-173-31807	5H OIL CO., LLC	Oil	21840
42-173-31808	5H OIL CO., LLC	Oil	21840
42-173-31809
42-173-31810
42-173-31811	ENDEAVOR ENERGY RESOURCES L.P.	Oil	29448
42-173-31812	5H OIL CO., LLC	Oil	21840
42-173-31813	EXXON CORP.
42-173-31814
42-173-31815	5H OIL CO., LLC	Oil	21840
42-173-31816	DIAMOND SHAMROCK EXPLORATION CO.
42-173-31817
42-173-31818	SABRE OPERATING, INC.	Oil	28653
42-173-31819
42-173-31820	EXXON CORP.
42-173-31821	EXXON CORP.	Oil
42-173-31822	STANOLIND PRODUCTION LLC	Oil	24876
42-173-31823	COG OPERATING LLC	Oil	22943
42-173-31824	DE3 OPERATING LLC	Oil	06420
42-173-31825	JM COX RESOURCES, L.P.	Oil	23753
42-173-31826	PHILLIPS WATER HAULING, INC.	Oil	08425
42-173-31827	COG OPERATING LLC	Oil	22021
42-173-31828	WALLACE OIL & GAS, INC.	Oil
42-173-31829	PARALLEL PETROLEUM CORPORATION
42-173-31830	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24461
42-173-31831	J.R.Y. RESOURCES, INC.
42-173-31832
42-173-31833	JM COX RESOURCES, L.P.	Oil	25573
42-173-31834	COG OPERATING LLC	Oil	23203
42-173-31835	HRUBETZ OIL COMPANY	Oil	02815
42-173-31836	XTO ENERGY INC.	Oil	29948
42-173-31837	Bta Oil Producers	Oil
42-173-31838	EXXON CORP.
42-173-31839	XTO ENERGY INC.	Gas	147950
42-173-31840	XTO ENERGY INC.	Oil	30016
42-173-31841	B & G ENERGY CORPORATION
42-173-31842	KINDRED PETROLEUM COMPANY	Gas	151154
42-173-31843	EXXON CORP.
42-173-31844	ENDEAVOR ENERGY RESOURCES L.P.	Oil	27117
42-173-31845	DIAMOND SHAMROCK EXPLORATION CO.
42-173-31846	WTG EXPLORATION	Oil	37095
42-173-31847	Bta Oil Producers
42-173-31848	Bta Oil Producers	Oil
42-173-31849
42-173-31850
42-173-31851	ADKINS, R. L. CORP.	Oil	39501
42-173-31852	BREITBURN OPERATING L.P.	Oil	29956
42-173-31853	Bta Oil Producers
42-173-31854	ROYALTY LAND & DEV. CO., INC.	Oil	28869
42-173-31855
42-173-31856	ROYALTY LAND & DEV. CO., INC.	Oil	28618
42-173-31857	TYMD PRODUCTION, INC.
42-173-31858	B & G ENERGY CORPORATION	Oil
42-173-31859	SCYTHIAN, LTD.	Oil	30009
42-173-31860	PARSLEY ENERGY OPERATIONS, LLC	Oil	52971
42-173-31861	Hunt Oil Company	Gas	216554
42-173-31862	EXXON CORP.
42-173-31863
42-173-31864	MABEE PETROLEUM CORP.	Oil	30793
42-173-31865	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-31866	SANTA FE MINERALS (DIV OF SFIC)
42-173-31867	SUNDOWN ENERGY LP	Oil	28518
42-173-31868	XTO ENERGY INC.	Oil	30130
42-173-31869	TOMAHAWK PETROLEUM	Oil	30224
42-173-31870	CHEYENNE RESOURCES	Oil	28896
42-173-31871	DE3 OPERATING LLC	Oil	23290
42-173-31872	Apache Corporation	Oil	24845
42-173-31873	PATTERSON PETROLEUM, INC.
42-173-31874	ROYALTY LAND & DEV. CO., INC.	Oil	52058
42-173-31875	MEWBOURNE OIL COMPANY	Oil	30841
42-173-31876	B & G ENERGY CORPORATION	Oil
42-173-31877	PIONEER NATURAL RES. USA, INC.	Oil	30219
42-173-31878	Apache Corporation	Oil	06301
42-173-31879	PIONEER NATURAL RES. USA, INC.	Oil	30295
42-173-31880
42-173-31881	T.G.B., INC.	Oil	36875
42-173-31882	ANADARKO PETROLEUM CORPORATION	Oil	32738
42-173-31883	CHEVRON U. S. A. INC.	Oil	30271
42-173-31884	TERRA RESOURCES, INC.
42-173-31885	V-F PETROLEUM INC.	Oil
42-173-31886	DIAMOND SHAMROCK EXPLORATION CO.
42-173-31887	OCCIDENTAL PERMIAN LTD.	Oil	23291
42-173-31888	Amoco Production Company
42-173-31889	OXY USA INC.	Oil	30173
42-173-31890	Amoco Production Company
42-173-31891	STANOLIND PRODUCTION LLC	Gas	146994
42-173-31892
42-173-31893	MWJ PRODUCING COMPANY	Oil
42-173-31894
42-173-31895	TERRA RESOURCES, INC.
42-173-31896	CHAPMAN EXPLORATION, INC.
42-173-31897
42-173-31898	ALLEDER INC.	Oil	30298
42-173-31899	ROYALTY LAND & DEV. CO., INC.	Oil	28618
42-173-31900	EXXON CORP.
42-173-31901	MWJ PRODUCING COMPANY	Oil	45885
42-173-31902	SCYTHIAN, LTD.	Oil	30009
42-173-31903	GOLDEN RESOURCES CORPORATION	Oil
42-173-31904	DIAMOND SHAMROCK EXPLORATION CO.
42-173-31905	EP Operating Company	Oil	32346
42-173-31906	Bta Oil Producers
42-173-31907	XTO ENERGY INC.	Oil	25434
42-173-31908	DYAD PETROLEUM COMPANY
42-173-31909	PIONEER NATURAL RES. USA, INC.	Oil	23871
42-173-31910	STEPHENS, AUTRY C.	Oil	06596
42-173-31911	BREITBURN OPERATING L.P.	Oil	30406
42-173-31912	Apache Corporation	Oil	30601
42-173-31913	ENDEAVOR ENERGY RESOURCES L.P.	Oil	53116
42-173-31914
42-173-31915	MONSANTO OIL COMPANY
42-173-31916	Apache Corporation	Oil	49951
42-173-31917	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36451
42-173-31918	MOBIL PRODUCING TX. & N.M. INC.	Oil
42-173-31919	OXY USA INC.	Oil	30574
42-173-31920	Amoco Production Company	Oil	50427
42-173-31921	SMITH BROS. CASING PULLERS, INC.	Oil	36908
42-173-31922	OCCIDENTAL PERMIAN LTD.	Oil	23191
42-173-31923	PATRIOT PRODUCTION LLC	Oil	29495
42-173-31924	ALLEDER INC.	Oil	30298
42-173-31925	CONOCOPHILLIPS COMPANY	Oil	02701
42-173-31926	Hunt Oil Company	Oil	29741
42-173-31927	RICHMOND DRILLING COMPANY
42-173-31928
42-173-31929	WESTERN RESERVES OIL COMPANY INC	Oil
42-173-31930	DIAMOND SHAMROCK EXPLORATION CO.
42-173-31931	EXXON CORP.
42-173-31932	PARKER & PARSLEY DEVELOPMENT L.P	Oil	09519
42-173-31933	B & G ENERGY CORPORATION
42-173-31934	PARKER & PARSLEY DEVELOPMENT L.P	Oil	14109
42-173-31935
42-173-31936	PIONEER NATURAL RES. USA, INC.	Oil	06278
42-173-31937	Union Texas Petroleum Corp.	Oil
42-173-31938	PERMIAN WEST PIPE, INC.	Oil	30839
42-173-31939	Bta Oil Producers
42-173-31940	COSTILLA PETROLEUM CORPORATION	Oil	30708
42-173-31941	Conoco Inc.
42-173-31942
42-173-31943	DIAMOND SHAMROCK EXPLORATION CO.
42-173-31944	Amoco Production Company
42-173-31945	Amoco Production Company
42-173-31946	DIAMOND SHAMROCK EXPLORATION CO.
42-173-31947	DIAMOND SHAMROCK EXPLORATION CO.
42-173-31948	XTO ENERGY INC.	Oil	30767
42-173-31949
42-173-31950	EXXON CORP.
42-173-31951
42-173-31952	Primary Fuels, Inc.
42-173-31953	CONOCOPHILLIPS COMPANY	Oil	41246
42-173-31954	Bta Oil Producers
42-173-31955	XTO ENERGY INC.	Oil	29129
42-173-31956	Legacy Reserves Operating LP	Oil	52785
42-173-31957	PATRIOT PRODUCTION LLC	Oil	29495
42-173-31958
42-173-31959
42-173-31960	ENDEAVOR ENERGY RESOURCES L.P.	Oil	32092
42-173-31961	B & G ENERGY CORPORATION	Oil
42-173-31962
42-173-31963	MDC OPERATING, INC.	Oil	31033
42-173-31964	STEPHENS, AUTRY C.	Oil	33819
42-173-31965	STEPHENS, AUTRY C.	Oil	31086
42-173-31966	XTO ENERGY INC.	Oil	47316
42-173-31967
42-173-31968	ENDEAVOR ENERGY RESOURCES L.P.	Oil	47456
42-173-31969	MWJ PRODUCING COMPANY	Oil	31848
42-173-31970	TERRA RESOURCES, INC.
42-173-31971	EXXON CORP.
42-173-31972	XTO ENERGY INC.	Oil	53031
42-173-31973	TEXACO E & P INC.	Oil	40506
42-173-31974	PCT OIL CO.	Oil	31340
42-173-31975	Union Texas Petroleum Corp.
42-173-31976	ENDEAVOR ENERGY RESOURCES L.P.	Oil	50918
42-173-31977	TERRA RESOURCES, INC.
42-173-31978	Amoco Production Company
42-173-31979	ORYX ENERGY COMPANY	Oil	32309
42-173-31980	ODYSSEY PARTNERS, LTD.	Oil	34215
42-173-31981	SANTA FE MINERALS, INC.
42-173-31982
42-173-31983	SANTA FE MINERALS, INC.
42-173-31984	ENERGEN RESOURCES CORPORATION	Oil	40221
42-173-31985	PIONEER NATURAL RES. USA, INC.	Oil	09348
42-173-31986	XTO ENERGY INC.	Gas	264434
42-173-31987	Bta Oil Producers
42-173-31988	MINERAL TECHNOLOGIES, INC.	Oil	32415
42-173-31989	MDC OPERATING, INC.	Oil	52606
42-173-31990	HAMMAN OIL & REFINING COMPANY	Oil	31545
42-173-31991	Hunt Oil Company	Oil	06501
42-173-31992	MATADOR DRILLING CORP.
42-173-31993	Bta Oil Producers
42-173-31994	PARSLEY ENERGY OPERATIONS, LLC	Gas	206106
42-173-31995	ATHLON FE OPERATING LLC	Oil	38400
42-173-31996	JM COX RESOURCES, L.P.	Oil	25571
42-173-31997	ENDEAVOR ENERGY RESOURCES L.P.	Oil	31498
42-173-31998	ANADARKO PETROLEUM CORPORATION	Oil	30542
42-173-31999	Maxus Exploration Company
42-173-32000	TREND EXPLORATION COMPANY	Oil	31528
42-173-32001	Maxus Exploration Company
42-173-32002	Texaco Inc.	Oil
42-173-32003	ORYX ENERGY COMPANY	Oil	32312
42-173-32004	ORYX ENERGY COMPANY	Oil	32308
42-173-32005	COG OPERATING LLC	Oil	31580
42-173-32006	WESTERN RESERVES OIL COMPANY INC	Oil	31714
42-173-32007	BEACH EXPLORATION, INC.
42-173-32008	BRAZOS PETROLEUM, INC.	Gas	130530
42-173-32009	CIMAREX ENERGY CO. OF COLORADO	Oil	42209
42-173-32010	ENDEAVOR ENERGY RESOURCES L.P.	Oil	52791
42-173-32011	KOHLER ENERGY CORPORATION
42-173-32012	PIONEER NATURAL RES. USA, INC.	Oil	31729
42-173-32013	HANLEY PETROLEUM INC.	Oil	20269
42-173-32014	NORTHSTAR OPERATING COMPANY	Oil	37493
42-173-32015	PIONEER NATURAL RES. USA, INC.	Oil	31729
42-173-32016	Hunt Oil Company	Oil	08424
42-173-32017	HANLEY PETROLEUM INC.	Oil	20269
42-173-32018	PIONEER NATURAL RES. USA, INC.	Oil	31815
42-173-32019	PIONEER NATURAL RES. USA, INC.	Oil	53645
42-173-32020	PIONEER NATURAL RES. USA, INC.	Oil	53645
42-173-32021	Apache Corporation
42-173-32022	ORYX ENERGY COMPANY	Oil	34867
42-173-32023	HENDON EXPLORATION, INC.
42-173-32024	COG OPERATING LLC	Oil	31580
42-173-32025	Meridian Oil Inc.	Oil	31865
42-173-32026	COG OPERATING LLC	Oil	06409
42-173-32028	WASSER INVESTMENTS, LLC	Oil	41170
42-173-32029	UNION TEXAS PETROLEUM
42-173-32030	ENDEAVOR ENERGY RESOURCES L.P.	Oil	31942
42-173-32031	Union Texas Petroleum Corp.
42-173-32032	CONOCOPHILLIPS COMPANY	Oil	41246
42-173-32033	Conoco Inc.
42-173-32034	ROBERTSON RESOURCES, INC.	Oil	17701
42-173-32035	Union Texas Petroleum Corp.
42-173-32036	TREND EXPLORATION COMPANY, INC.	Oil
42-173-32037	DIAMONDBACK E&P LLC	Oil	31951
42-173-32038	DIAMONDBACK E&P LLC	Oil	31918
42-173-32039	Felmont Oil Corp.
42-173-32040	EMPIRE STATE ENERGY, INC.
42-173-32041	EMPIRE STATE ENERGY, INC.
42-173-32042	ORYX ENERGY COMPANY	Oil	32311
42-173-32043	RANGE PRODUCTION COMPANY	Oil	31996
42-173-32044	ENERGEN RESOURCES CORPORATION	Oil	32587
42-173-32045	ROBERTSON RESOURCES, INC.	Oil	17701
42-173-32046	PARKER & PARSLEY DEVELOPMENT L.P	Oil	12550
42-173-32047	TREND EXPLORATION COMPANY
42-173-32050	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06980
42-173-32051	SANTA FE MINERALS, INC.	Oil	32307
42-173-32052	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06980
42-173-32053	MIDPAR L.P.	Oil	12550
42-173-32054	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06980
42-173-32055	TMBR/SHARP DRILLING, INC.
42-173-32056	REATTA ENERGY, INC.	Oil	32112
42-173-32057	UNION TEXAS PETROLEUM
42-173-32058	PIONEER NATURAL RES. USA, INC.	Oil	07340
42-173-32059	PIONEER NATURAL RES. USA, INC.	Oil	07340
42-173-32060	PIONEER NATURAL RES. USA, INC.	Oil	32199
42-173-32061	Meridian Oil Inc.	Oil	32139
42-173-32062	RANGE PRODUCTION COMPANY	Oil	31996
42-173-32063	ORYX ENERGY COMPANY	Oil	35850
42-173-32064	BEE-JAY PETRO, INC.	Oil	40710
42-173-32065	El Paso Natural Gas Company
42-173-32066	MYCO INDUSTRIES, INC.
42-173-32067	MYCO INDUSTRIES, INC.
42-173-32068	Legacy Reserves Operating LP	Oil	32189
42-173-32069	DIAMONDBACK E&P LLC	Oil	32573
42-173-32070	MYCO INDUSTRIES, INC.
42-173-32071
42-173-32072	Cox, John L.	Oil	25539
42-173-32073	Texaco Inc.	Oil	32273
42-173-32074	EP Operating Company	Oil	40354
42-173-32075	TREND EXPLORATION COMPANY
42-173-32076
42-173-32077
42-173-32078	ENDEAVOR ENERGY RESOURCES L.P.	Oil	32359
42-173-32079	PARSLEY ENERGY OPERATIONS, LLC	Gas	206108
42-173-32080	ENDEAVOR ENERGY RESOURCES L.P.	Oil	32359
42-173-32081	MATADOR DRILLING CORP.	Oil	32301
42-173-32082	Meridian Oil Inc.	Oil	32139
42-173-32083	ARKLAND PRODUCING CO., INC.	Oil	32310
42-173-32084	Meridian Oil Inc.	Oil	39762
42-173-32085	PLACER DOME U.S. INC.	Oil	32649
42-173-32086	TREND EXPLORATION COMPANY
42-173-32087	Union Texas Petroleum Corp.
42-173-32088	GRUY PETROLEUM MANAGEMENT CO.	Oil	32357
42-173-32089	Cox, John L.	Oil	32370
42-173-32090	Legacy Reserves Operating LP	Oil	32513
42-173-32091	TMBR/SHARP DRILLING, INC.	Oil	40380
42-173-32092	ENDEAVOR ENERGY RESOURCES L.P.	Oil	31536
42-173-32093	PURVIS OPERATING CO.	Oil	32420
42-173-32094	CONOCOPHILLIPS COMPANY	Oil	02774
42-173-32095	CONOCOPHILLIPS COMPANY	Oil	02774
42-173-32096	CONOCOPHILLIPS COMPANY	Oil	02774
42-173-32097	CONOCOPHILLIPS COMPANY	Oil	02774
42-173-32098	CONOCOPHILLIPS COMPANY	Oil	02774
42-173-32099	ENDEAVOR ENERGY RESOURCES L.P.	Oil	32309
42-173-32100	Legacy Reserves Operating LP	Oil	32513
42-173-32101	H & O OPERATING CO. INC.	Oil	27706
42-173-32102	TREND EXPLORATION COMPANY
42-173-32103	Texaco Inc.	Oil	32580
42-173-32104	WINCHESTER PRODUCTION COMPANY
42-173-32105	ODESSA EXPLORATION, INC.	Oil	34596
42-173-32106	Union Texas Petroleum Corp.
42-173-32107	AMERICAN PETROFINA PIPE LINE CO.
42-173-32108	AMERICAN PETROFINA PIPE LINE CO.
42-173-32109	EP OPERATING LIMITED PARTNERSHIP	Oil	32765
42-173-32110	CHEVRON U. S. A. INC.	Oil	32444
42-173-32111	ENERGEN RESOURCES CORPORATION	Oil	32753
42-173-32112	STANOLIND PRODUCTION LLC	Oil	24876
42-173-32113	DE3 OPERATING LLC	Oil	32635
42-173-32114
42-173-32115	CROWNQUEST OPERATING, LLC	Oil	32612
42-173-32116	Apache Corporation	Oil	46360
42-173-32117	PIONEER NATURAL RES. USA, INC.	Oil	32634
42-173-32118	TREND EXPLORATION COMPANY	Oil	23723
42-173-32119	Union Texas Petroleum Corp.
42-173-32120	PLACER DOME U.S. INC.	Oil	32649
42-173-32121	PLACER DOME U.S. INC.	Oil	32649
42-173-32122	PLACER DOME U.S. INC.	Oil	32651
42-173-32123	PLACER DOME U.S. INC.	Oil	32649
42-173-32124	STANOLIND PRODUCTION LLC	Oil	29076
42-173-32125	ENDEAVOR ENERGY RESOURCES L.P.	Oil	32790
42-173-32126	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32127	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32128	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32129	PLACER DOME U.S. INC.	Oil	32651
42-173-32130	ODESSA EXPLORATION, INC.	Oil	07171
42-173-32131	Apache Corporation	Oil	06300
42-173-32132	MCDONNOLD OPERATING, INC.	Oil	47884
42-173-32133	TEXACO E & P INC.	Oil	32660
42-173-32134	MATADOR DRILLING CORP.	Oil	32777
42-173-32135	TREND EXPLORATION COMPANY	Oil	33460
42-173-32136	H & O OPERATING CO. INC.	Oil	33069
42-173-32137	Apache Corporation	Oil	06311
42-173-32138	Apache Corporation	Oil	06309
42-173-32139	ARCO OIL & GAS CO.
42-173-32140	Apache Corporation	Oil	30640
42-173-32141	PIONEER NATURAL RES. USA, INC.	Oil	33003
42-173-32142	Eagle Oil & Gas Co.
42-173-32143	ODESSA EXPLORATION, INC.	Oil	15400
42-173-32144	STANOLIND PRODUCTION LLC	Oil	24876
42-173-32145	GLASSCOCK OPERATING COMPANY
42-173-32146	Conoco Inc.	Oil	36443
42-173-32147	STANOLIND PRODUCTION LLC	Gas	136972
42-173-32148	Texaco Inc.
42-173-32149	TEXACO E & P INC.	Oil	33225
42-173-32150	ODESSA EXPLORATION, INC.	Oil	15400
42-173-32151	SMITH PIPE OF ABILENE	Oil	33027
42-173-32152	TEXACO E & P INC.	Oil	32580
42-173-32153	XTO ENERGY INC.	Oil	32273
42-173-32154	XTO ENERGY INC.	Gas	139144
42-173-32155	XTO ENERGY INC.	Oil	32273
42-173-32156	ALLEDER INC.	Oil	33910
42-173-32157	CLEAR WATER INC.	Gas	216556
42-173-32158
42-173-32159	RANGELAND EXPLORATION COMPANY
42-173-32160	WAGNER & BROWN, LTD.	Oil	25243
42-173-32161	ODESSA EXPLORATION, INC.	Oil	13087
42-173-32162	ODESSA EXPLORATION, INC.	Oil	15400
42-173-32163	RANGE PRODUCTION COMPANY	Oil	33176
42-173-32164	SUTTON, ROBERT E., INC.
42-173-32165	SUTTON, ROBERT E., INC.
42-173-32166	MDC OPERATING, INC.	Oil	27397
42-173-32167	TREND EXPLORATION COMPANY	Oil	33187
42-173-32168
42-173-32169	Bta Oil Producers
42-173-32170
42-173-32171	Mariah Energy Corp.	Oil	33285
42-173-32172	ODESSA EXPLORATION, INC.	Oil	13149
42-173-32173	ODESSA EXPLORATION, INC.	Oil	13141
42-173-32174	Hunt Oil Company	Oil	33259
42-173-32175	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20270
42-173-32176	Houston Oil & Minerals Corp.
42-173-32177	OXY USA INC.	Oil	33268
42-173-32178	XTO ENERGY INC.	Oil	29129
42-173-32179	XTO ENERGY INC.	Oil	47316
42-173-32181	TEXACO E & P INC.
42-173-32182	TREND EXPLORATION COMPANY
42-173-32183	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20270
42-173-32184	ALLEDER INC.
42-173-32185
42-173-32186	PHILLIPS WATER HAULING, INC.	Oil	08425
42-173-32187	Bta Oil Producers
42-173-32188	DE3 OPERATING LLC	Oil	06423
42-173-32189	ATLAS OPERATING LLC	Oil	33351
42-173-32190	Hunt Oil Company	Oil	36443
42-173-32191	PARSLEY ENERGY OPERATIONS, LLC	Oil	33338
42-173-32192	STANOLIND PRODUCTION LLC	Oil	25243
42-173-32193	STANOLIND PRODUCTION LLC	Oil	25243
42-173-32194	Horizon Oil & Gas Co.
42-173-32195	TEXACO E & P INC.
42-173-32196	ARKLAND PRODUCING CO., INC.	Gas	247740
42-173-32197	STANOLIND PRODUCTION LLC	Oil	25243
42-173-32198	STANOLIND PRODUCTION LLC	Oil	25243
42-173-32199	COG OPERATING LLC	Oil	33568
42-173-32200	OXY USA INC.	Oil	50427
42-173-32201	OXY USA INC.	Oil	33508
42-173-32202	Bta Oil Producers
42-173-32203	AMTEX ENERGY, INC.	Oil	33462
42-173-32204	DE3 OPERATING LLC	Oil	33493
42-173-32205	Hunt Oil Company	Oil	33606
42-173-32206	ODESSA EXPLORATION, INC.	Oil	13307
42-173-32207	ODESSA EXPLORATION, INC.	Oil	13307
42-173-32208	Hunt Oil Company	Oil	33259
42-173-32209	Conoco Inc.	Oil	33523
42-173-32210	OXY USA INC.	Oil	50427
42-173-32211	Apache Corporation	Oil	06293
42-173-32212	Apache Corporation	Oil	06530
42-173-32213	CHEVRON U. S. A. INC.	Oil	32444
42-173-32214	CHEVRON U. S. A. INC.	Oil	32444
42-173-32215	CHEVRON U. S. A. INC.	Oil	32444
42-173-32216	CHEVRON U. S. A. INC.	Oil	32444
42-173-32217	TEXACO E & P INC.	Gas	218115
42-173-32218	CHEVRON U. S. A. INC.	Oil	32444
42-173-32219	CHEVRON U. S. A. INC.	Gas	208635
42-173-32220	RANGELAND EXPLORATION COMPANY
42-173-32221	CHEVRON U. S. A. INC.	Oil	33562
42-173-32222	CHEVRON U. S. A. INC.	Oil	33562
42-173-32223	Hunt Oil Company	Oil	18972
42-173-32224	ENDEAVOR ENERGY RESOURCES L.P.	Oil	19142
42-173-32225	CHEVRON U. S. A. INC.	Gas	148856
42-173-32226	CHEVRON U. S. A. INC.	Gas	154772
42-173-32227	CHEVRON U. S. A. INC.	Gas	154773
42-173-32228	CHEVRON U. S. A. INC.	Gas	149801
42-173-32229	CHEVRON U. S. A. INC.	Gas	149802
42-173-32230	CHEVRON U. S. A. INC.	Gas	149798
42-173-32231	CHEVRON U. S. A. INC.	Oil	39269
42-173-32232	TEXACO E & P INC.
42-173-32233	TEXACO E & P INC.
42-173-32234	CHEVRON U. S. A. INC.	Oil	39269
42-173-32235	Apache Corporation	Oil	06300
42-173-32236	Apache Corporation	Oil	06300
42-173-32237	Hunt Oil Company	Oil	18972
42-173-32238	ENDEAVOR ENERGY RESOURCES L.P.	Oil	19142
42-173-32239	Hunt Oil Company	Oil	18972
42-173-32240	Apache Corporation	Oil	06309
42-173-32241	Apache Corporation	Oil	30640
42-173-32242	Apache Corporation	Oil	30640
42-173-32243	PARSLEY ENERGY OPERATIONS, LLC	Oil	33604
42-173-32244	TREND EXPLORATION COMPANY
42-173-32245	STANOLIND PRODUCTION LLC	Oil	24876
42-173-32246	WAGNER & BROWN, LTD.	Oil	24876
42-173-32247	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33627
42-173-32248	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33669
42-173-32249	STANOLIND PRODUCTION LLC	Oil	24876
42-173-32250	STANOLIND PRODUCTION LLC	Oil	24876
42-173-32251	STANOLIND PRODUCTION LLC	Oil	40433
42-173-32252	WAGNER & BROWN, LTD.	Oil	24876
42-173-32253	TEXACO E & P INC.
42-173-32254	CHEVRON U. S. A. INC.	Oil	37982
42-173-32255	SUTTON, ROBERT E., INC.
42-173-32256	CHEVRON U. S. A. INC.	Gas	149846
42-173-32257	CHEVRON U. S. A. INC.	Oil	33645
42-173-32258	CHEVRON U. S. A. INC.	Oil	33645
42-173-32259	CHEVRON U. S. A. INC.	Oil	33645
42-173-32260	NADEL AND GUSSMAN PERMIAN,L.L.C.	Oil	20093
42-173-32261	STANOLIND PRODUCTION LLC	Oil	25243
42-173-32262	CHEVRON U. S. A. INC.	Gas	148897
42-173-32263
42-173-32264	DINERO OPERATING COMPANY
42-173-32265	TREND EXPLORATION COMPANY
42-173-32266	Apache Corporation	Oil	06293
42-173-32267	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33685
42-173-32268	Apache Corporation	Oil	49919
42-173-32269	Apache Corporation	Oil	30601
42-173-32270	PETROLEUM TECHNICAL SERVICES CO.
42-173-32271	STANOLIND PRODUCTION LLC	Oil	25243
42-173-32272	TREND EXPLORATION COMPANY	Oil	33683
42-173-32273	Bta Oil Producers	Oil	33748
42-173-32274	STANOLIND PRODUCTION LLC	Gas	285637
42-173-32275	THOMPSON, J. CLEO	Oil	33678
42-173-32276	STANOLIND PRODUCTION LLC	Gas	283810
42-173-32277	STANOLIND PRODUCTION LLC	Oil	25243
42-173-32278	OXY USA INC.	Gas	152184
42-173-32279	Apache Corporation	Oil	06530
42-173-32280	XTO ENERGY INC.	Oil	29129
42-173-32281	OXY USA INC.	Oil	53953
42-173-32282	STANOLIND PRODUCTION LLC	Oil	25243
42-173-32283	KING ENERGY RESOURCES	Oil	33776
42-173-32284	ENDEAVOR ENERGY RESOURCES L.P.	Oil	19187
42-173-32285	ENDEAVOR ENERGY RESOURCES L.P.	Oil	19187
42-173-32286	MDC OPERATING, INC.	Oil	33702
42-173-32287	STANOLIND PRODUCTION LLC	Oil	25052
42-173-32288	STANOLIND PRODUCTION LLC	Oil	25243
42-173-32289	STANOLIND PRODUCTION LLC	Oil	25243
42-173-32290	STANOLIND PRODUCTION LLC	Oil	25243
42-173-32291	STANOLIND PRODUCTION LLC	Oil	25243
42-173-32292	STANOLIND PRODUCTION LLC	Oil	25243
42-173-32293	WAGNER & BROWN, LTD.	Oil	25243
42-173-32294
42-173-32295	STANOLIND PRODUCTION LLC	Oil	25243
42-173-32296	STANOLIND PRODUCTION LLC	Oil	25243
42-173-32297	WAGNER & BROWN, LTD.	Oil	25243
42-173-32298	PIONEER NATURAL RES. USA, INC.	Oil	33767
42-173-32299	CHEVRON U. S. A. INC.	Gas	204153
42-173-32300	Wichita Water Llc	Oil	42300
42-173-32301	OXY USA INC.	Oil	52445
42-173-32302	OXY USA INC.	Oil	33779
42-173-32303	WAGNER & BROWN, LTD.
42-173-32304	WAGNER & BROWN, LTD.
42-173-32305	Bta Oil Producers	Oil	33846
42-173-32306	PIONEER NATURAL RES. USA, INC.	Oil	53780
42-173-32307	R K PETROLEUM CORP.	Gas	146424
42-173-32308	TEXACO E & P INC.
42-173-32309	Apache Corporation	Oil	06311
42-173-32310	Apache Corporation	Oil	06311
42-173-32311	Apache Corporation	Oil	06306
42-173-32312	Apache Corporation	Oil	06297
42-173-32313	Apache Corporation	Oil	33751
42-173-32314	Apache Corporation	Oil	06311
42-173-32315	TREND EXPLORATION COMPANY
42-173-32316	MATADOR DRILLING CORP.
42-173-32317	RANGELAND EXPLORATION COMPANY
42-173-32318	THOMPSON, J. CLEO	Oil	33889
42-173-32319	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33869
42-173-32320	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33869
42-173-32321	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33869
42-173-32322	BRECK OPERATING CORP.	Oil	33858
42-173-32323	OXY USA INC.	Oil	50427
42-173-32324	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33869
42-173-32325	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33869
42-173-32326	OXY USA INC.	Oil	50427
42-173-32327	CHEVRON U. S. A. INC.	Gas	149851
42-173-32328	COG OPERATING LLC	Oil	52957
42-173-32329	CHEVRON U. S. A. INC.	Gas	149840
42-173-32330	CHEVRON U. S. A. INC.	Gas	149841
42-173-32331	CHEVRON U. S. A. INC.	Gas	149803
42-173-32332	CHEVRON U. S. A. INC.	Gas	149852
42-173-32333	CHEVRON U. S. A. INC.	Gas	149853
42-173-32334	CHEVRON U. S. A. INC.	Gas	149854
42-173-32335	THOMPSON, J. CLEO	Oil	34127
42-173-32336	DALLAS PRODUCTION, INC.
42-173-32337	TREND EXPLORATION COMPANY
42-173-32338	CHEVRON U. S. A. INC.	Oil	37012
42-173-32339	CHEVRON U. S. A. INC.	Oil	37646
42-173-32340	PARSLEY ENERGY OPERATIONS, LLC	Oil	52748
42-173-32341	STEPHENS, AUTRY C.	Oil	13503
42-173-32342	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34010
42-173-32343	PETRA OLEUM CORP.	Gas	151848
42-173-32344	RELIANCE ENERGY, INC.	Oil	33989
42-173-32345	XTO ENERGY INC.	Oil	54475
42-173-32346
42-173-32347	XTO ENERGY INC.	Oil	54440
42-173-32348	THOMPSON, J. CLEO	Oil	33988
42-173-32349	THOMPSON, J. CLEO
42-173-32350	OXY USA INC.	Oil	50427
42-173-32351	Cobra Oil & Gas Corporation
42-173-32352	COSTILLA ENERGY, INC.	Oil	34100
42-173-32353	Hunt Oil Company	Oil	08908
42-173-32354	Hunt Oil Company	Oil	06392
42-173-32355	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06387
42-173-32356	Hunt Oil Company	Oil	15630
42-173-32357	THOMPSON, J. CLEO
42-173-32358	HANLEY PETROLEUM INC.
42-173-32359	HANLEY PETROLEUM INC.	Oil	07149
42-173-32360	Hunt Oil Company	Oil	09862
42-173-32361	TREND EXPLORATION COMPANY	Oil	34135
42-173-32362	PIONEER NATURAL RES. USA, INC.	Oil	34011
42-173-32363
42-173-32364
42-173-32365	PATTERSON PETROLEUM, INC.	Oil	34038
42-173-32366	Cobra Oil & Gas Corporation
42-173-32367	TREND EXPLORATION COMPANY
42-173-32368	Cobra Oil & Gas Corporation
42-173-32369	ROBERTSON RESOURCES, INC.	Oil	34041
42-173-32370	COSTILLA PETROLEUM CORPORATION
42-173-32371	Bta Oil Producers
42-173-32372	ODYSSEY PARTNERS, LTD.
42-173-32373	RANGELAND EXPLORATION COMPANY
42-173-32374
42-173-32375	OXY USA INC.	Oil	34084
42-173-32376	THOMPSON, J. CLEO	Oil	34138
42-173-32377	STANOLIND PRODUCTION LLC	Oil	34203
42-173-32378	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34010
42-173-32379	TREND EXPLORATION COMPANY
42-173-32380	CHEVRON U. S. A. INC.	Oil	32444
42-173-32381	CHEVRON U. S. A. INC.	Oil	33562
42-173-32382	THOMPSON, J. CLEO
42-173-32383	CHEVRON U. S. A. INC.	Oil	33562
42-173-32384	COSTILLA PETROLEUM CORPORATION
42-173-32385	Cobra Oil & Gas Corporation
42-173-32386	RANGE PRODUCTION COMPANY	Oil	34147
42-173-32387	TEXACO E & P INC.	Gas	150625
42-173-32388	XTO ENERGY INC.	Oil	25434
42-173-32389	CHEVRON U. S. A. INC.	Gas	149842
42-173-32390	RANGELAND EXPLORATION COMPANY
42-173-32391	CHEVRON U. S. A. INC.	Gas	149368
42-173-32392	CHEVRON U. S. A. INC.	Oil	32444
42-173-32393	CHEVRON U. S. A. INC.	Oil	32444
42-173-32394	CHEVRON U. S. A. INC.	Gas	191545
42-173-32395	TEXACO E & P INC.	Oil	37893
42-173-32396	TEXACO E & P INC.	Gas	155144
42-173-32397	TEXACO E & P INC.	Oil	33562
42-173-32398	CHEVRON U. S. A. INC.	Gas	149808
42-173-32399	CHEVRON U. S. A. INC.	Gas	149372
42-173-32400	TREND EXPLORATION COMPANY
42-173-32401	Bta Oil Producers
42-173-32402	XTO ENERGY INC.	Oil	25434
42-173-32403	CAMBRIAN MANAGEMENT, LTD.	Oil	38901
42-173-32404	TREND EXPLORATION COMPANY
42-173-32405	TREND EXPLORATION COMPANY	Oil	34102
42-173-32406	CHEVRON U. S. A. INC.	Gas	149855
42-173-32407	CHEVRON U. S. A. INC.	Gas	150708
42-173-32408	CHEVRON U. S. A. INC.	Gas	155143
42-173-32409	CHEVRON U. S. A. INC.	Gas	218240
42-173-32410	PYOTE WATER SYSTEMS II, LLC	Oil	42300
42-173-32411	TREND EXPLORATION COMPANY
42-173-32412	XTO ENERGY INC.	Oil	29129
42-173-32413	PARSLEY ENERGY OPERATIONS, LLC	Oil	52845
42-173-32414	PATTERSON PETROLEUM, INC.
42-173-32415	TEXACO E & P INC.
42-173-32416	T.G.B., INC.	Oil	34340
42-173-32417	STANOLIND PRODUCTION LLC	Oil	34061
42-173-32418
42-173-32419
42-173-32420	Conoco Inc.	Oil	34559
42-173-32421
42-173-32422	Cobra Oil & Gas Corporation
42-173-32423	DINERO OPERATING COMPANY
42-173-32424	Bta Oil Producers
42-173-32425	PARSLEY ENERGY OPERATIONS, LLC	Oil	52845
42-173-32426	Conoco Inc.
42-173-32427	ATROPOS EXPLORATION COMPANY	Oil	40338
42-173-32428	Fortson Oil Company
42-173-32429	ROBERTSON RESOURCES, INC.	Oil	34041
42-173-32430	STANOLIND PRODUCTION LLC	Oil	34205
42-173-32431	PARSLEY ENERGY OPERATIONS, LLC	Oil	52979
42-173-32432	T.G.B., INC.	Oil	35756
42-173-32433
42-173-32434	DYAD PETROLEUM COMPANY
42-173-32435	RELIANCE ENERGY, INC.	Oil	34348
42-173-32436
42-173-32437	PARSLEY ENERGY OPERATIONS, LLC	Oil	51365
42-173-32438
42-173-32439	OXY USA INC.	Oil	50427
42-173-32440
42-173-32441	XTO ENERGY INC.	Oil	29129
42-173-32442	Apache Corporation	Oil	06530
42-173-32443	TREND EXPLORATION COMPANY
42-173-32444	Hunt Oil Company	Oil	06501
42-173-32445
42-173-32446	RP OPERATING, L.L.C.	Oil	34341
42-173-32447	WESTERN GAS RESOURCES-TEXAS,INC.
42-173-32448	Bta Oil Producers	Oil	33846
42-173-32449	FED OPERATING LLC	Oil	52517
42-173-32450
42-173-32451	DIAMONDBACK E&P LLC	Oil	34279
42-173-32452	STANOLIND PRODUCTION LLC	Oil	34061
42-173-32453	TREND EXPLORATION COMPANY	Oil	34317
42-173-32454	OXY USA INC.	Gas	281424
42-173-32455	MDC OPERATING, INC.	Oil	52598
42-173-32456
42-173-32457	VALERO TRANSMISSION, L. P.
42-173-32458	ROBERTSON RESOURCES, INC.	Oil	34349
42-173-32459	OXY USA INC.	Oil	50427
42-173-32460
42-173-32461	RANGELAND EXPLORATION COMPANY
42-173-32462	MAJOR ENERGY CORPORATION
42-173-32463
42-173-32464	Bta Oil Producers
42-173-32465	RELENTLESS PERMIAN OPERATING LLC	Oil	34342
42-173-32466	Fortson Oil Company
42-173-32467	FINA PIPE LINE CO.
42-173-32468	PARSLEY ENERGY OPERATIONS, LLC	Oil	54163
42-173-32469
42-173-32470	OXY USA INC.	Oil	34336
42-173-32471
42-173-32472	Bta Oil Producers
42-173-32473	XTO ENERGY INC.	Oil	29129
42-173-32474	XTO ENERGY INC.	Oil	34416
42-173-32475	Fortson Oil Company
42-173-32476	XTO ENERGY INC.	Oil	32273
42-173-32477	TMBR/SHARP DRILLING, INC.	Oil	34476
42-173-32478	TREND EXPLORATION COMPANY
42-173-32479	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32480	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32481
42-173-32482	XTO ENERGY INC.	Oil	54475
42-173-32483	OXY USA INC.	Oil	34415
42-173-32484
42-173-32485	THOMPSON, J. CLEO	Oil	34527
42-173-32486	COG OPERATING LLC	Oil	34573
42-173-32487	OXY USA INC.	Oil	34441
42-173-32488	LONE STAR GAS CO.
42-173-32489	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32490	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32491	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32492	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32493	STANOLIND PRODUCTION LLC	Oil	34061
42-173-32494	CROWNQUEST OPERATING, LLC	Oil	26302
42-173-32495	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32496	TREND EXPLORATION COMPANY
42-173-32497	OXY USA INC.	Gas	227400
42-173-32498	OXY USA INC.	Oil	34461
42-173-32499	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32500	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32501	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32502	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32503	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32504	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32505	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32506
42-173-32507	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32508	RELIANCE OPERATING COMPANY
42-173-32509	Bta Oil Producers
42-173-32510	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32511	TMBR/SHARP DRILLING, INC.	Oil	34525
42-173-32512	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32513	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32514	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32515	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32516	TREND EXPLORATION COMPANY
42-173-32517	PPC OPERATING COMPANY LLC	Oil	34614
42-173-32518	RP OPERATING, L.L.C.	Oil	34558
42-173-32519	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34579
42-173-32520	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32521	CHEVRON U. S. A. INC.	Oil	34591
42-173-32522	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32523	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32524	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32525	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32526	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32527	PARSLEY ENERGY OPERATIONS, LLC	Oil	51365
42-173-32528	Bta Oil Producers
42-173-32529	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32530	BETTIS, BOYLE & STOVALL	Oil	34606
42-173-32531
42-173-32532	PARSLEY ENERGY OPERATIONS, LLC	Oil	33956
42-173-32533	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32534	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32535	INDEPENDENCE RESOURCES MGMT, LLC	Oil	34632
42-173-32536	INDEPENDENCE RESOURCES MGMT, LLC	Oil	34632
42-173-32537	INDEPENDENCE RESOURCES MGMT, LLC	Oil	34632
42-173-32538	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32539	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32540	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32541	PARKER & PARSLEY DEVELOPMENT L.P
42-173-32542	ACME ENERGY SERVICES, INC.	Oil	46718
42-173-32543	TEXACO E & P INC.
42-173-32544	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32545	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32546	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32547	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32548	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32549
42-173-32550	STANOLIND PRODUCTION LLC	Oil	34061
42-173-32551
42-173-32552	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32553	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32554	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32555	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32556	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34579
42-173-32557	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34579
42-173-32558	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34579
42-173-32559
42-173-32560
42-173-32561	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32562	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32563	XTO ENERGY INC.	Oil	32273
42-173-32564	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32565	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32566	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32567	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32568	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32569	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32570
42-173-32571	Bta Oil Producers
42-173-32572	Cobra Oil & Gas Corporation	Oil	34785
42-173-32573	TREND EXPLORATION COMPANY	Oil	34789
42-173-32574
42-173-32575	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32577	CHEVRON U. S. A. INC.	Oil	34812
42-173-32578	Bta Oil Producers
42-173-32579	Bta Oil Producers	Oil	52595
42-173-32580	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32581	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32582	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32583	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32584
42-173-32585	ARCO PERMIAN
42-173-32586	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32587	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32588	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32589	Apache Corporation	Oil	06300
42-173-32590	Apache Corporation	Oil	06300
42-173-32591	Apache Corporation	Oil	06309
42-173-32592	Apache Corporation	Oil	06293
42-173-32593	Apache Corporation	Oil	06311
42-173-32594	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32595	OXY USA INC.	Oil	34851
42-173-32596	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32597	Apache Corporation	Oil	06306
42-173-32598	Bta Oil Producers
42-173-32599	OXY USA INC.	Oil	34865
42-173-32600	TREND EXPLORATION COMPANY
42-173-32601	XTO ENERGY INC.	Oil	32273
42-173-32602	Bta Oil Producers
42-173-32603	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32604	STANOLIND PRODUCTION LLC	Oil	34061
42-173-32605	TEXACO E & P INC.
42-173-32606
42-173-32607
42-173-32608	PARSLEY ENERGY OPERATIONS, LLC	Oil	28560
42-173-32609	CHEVRON U. S. A. INC.	Oil	34591
42-173-32610	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32611	COASTAL PLAINS ENERGY, INC.	Oil	35289
42-173-32612	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32613	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32614	AQUA TERRA PERMIAN, LLC	Oil	34934
42-173-32615	MEWBOURNE OIL COMPANY	Oil	40015
42-173-32616
42-173-32617	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32618	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32619	PARSLEY ENERGY OPERATIONS, LLC	Oil	53419
42-173-32620	MEWBOURNE OIL COMPANY	Oil	20788
42-173-32621
42-173-32622
42-173-32623	TEXACO E & P INC.
42-173-32624	FAGADAU ENERGY CORPORATION	Oil	36714
42-173-32625	PARSLEY ENERGY OPERATIONS, LLC	Oil	30064
42-173-32626	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32627	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32628	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32629	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32630	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32631	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32632	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32633	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32634	VENTEX OPERATING CORP.	Oil	35848
42-173-32635	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32636	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32637	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32638	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32639	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32640	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32641	El Paso Natural Gas Company
42-173-32642	PARSLEY ENERGY OPERATIONS, LLC	Oil	51368
42-173-32643	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32644	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32645	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32646	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32647	TREND EXPLORATION COMPANY
42-173-32648	MANHATTAN PETROLEUM, INC.	Oil	38400
42-173-32649	TREND EXPLORATION COMPANY
42-173-32650	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32651	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32652	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32653	Apache Corporation	Oil	06297
42-173-32654	THOMPSON, J. CLEO	Oil	35948
42-173-32655	XTO ENERGY INC.	Oil	35083
42-173-32656	MOBIL PIPE LINE COMPANY
42-173-32657	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32658	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32659	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32660	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32661	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32662	FED OPERATING LLC	Oil	52515
42-173-32663	OXY USA INC.	Oil	35043
42-173-32664	WAGNER & BROWN, LTD.
42-173-32665	Cobra Oil & Gas Corporation	Oil	34785
42-173-32666
42-173-32668	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32669	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32670	Bta Oil Producers
42-173-32671	STANOLIND PRODUCTION LLC	Oil	34061
42-173-32672	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32673	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32674	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32675	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32676	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32677	OXY USA INC.	Oil	35071
42-173-32678	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32679	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32680	TOPAT OIL CORPORATION	Oil	35228
42-173-32681	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32682	Cobra Oil & Gas Corporation	Oil	43517
42-173-32683	Apache Corporation	Oil	30601
42-173-32684	TREND EXPLORATION COMPANY
42-173-32685	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32686	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32687	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32688	LADD OIL & GAS CORPORATION	Oil	35214
42-173-32689	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32690	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32691	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32692	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32693	MEWBOURNE OIL COMPANY	Oil	20788
42-173-32694	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32695	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32696	RANGE PRODUCTION COMPANY	Oil	35222
42-173-32697	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32698	TREND EXPLORATION COMPANY
42-173-32699	Bta Oil Producers	Oil	35140
42-173-32700
42-173-32701	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32702	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32703	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35203
42-173-32704
42-173-32705	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32706	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32707	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35203
42-173-32708	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32709	Cobra Oil & Gas Corporation	Oil	36039
42-173-32710	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32711	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32712	Bta Oil Producers
42-173-32713	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32714	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32715
42-173-32716	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32717	RPC OPERATING, INC.
42-173-32718	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32719	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32720	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32721	ELEMENT PETROLEUM OPERATING, LLC	Oil	35237
42-173-32722
42-173-32723	Bta Oil Producers
42-173-32724	Bta Oil Producers	Oil	35223
42-173-32725
42-173-32726	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-32727	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-32728	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-32729	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-32730	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-32731	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-32732	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-32733	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-32734	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-32735	Bta Oil Producers
42-173-32736	MDC OPERATING, INC.
42-173-32737	MDC OPERATING, INC.	Oil	36087
42-173-32738	Cobra Oil & Gas Corporation
42-173-32739	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32740	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32741	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32742	Bta Oil Producers
42-173-32743	PIONEER NATURAL RES. USA, INC.	Oil	20093
42-173-32744	VENTEX OPERATING CORP.
42-173-32745
42-173-32746	MEWBOURNE OIL COMPANY	Oil	20788
42-173-32747	MEWBOURNE OIL COMPANY	Oil	40022
42-173-32748	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32749	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32750	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32751	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-173-32752
42-173-32753	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32754	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32755	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32756	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-173-32757	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32758	PIONEER NATURAL RES. USA, INC.	Oil	17996
42-173-32759	PIONEER NATURAL RES. USA, INC.	Oil	20093
42-173-32760	Bta Oil Producers
42-173-32761	FIRST RESERVE OIL & GAS CO
42-173-32762	FIRST RESERVE OIL & GAS CO
42-173-32763
42-173-32764	DYAD PETROLEUM COMPANY	Oil	36603
42-173-32765	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32766	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32767	TEXACO E & P INC.
42-173-32768	Santa Fe Energy Resources, Inc.
42-173-32769	Legacy Reserves Operating LP	Oil	35500
42-173-32770	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32771	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32772	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32773	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32774	PARSLEY ENERGY OPERATIONS, LLC	Oil	35377
42-173-32775	PARSLEY ENERGY OPERATIONS, LLC	Oil	52747
42-173-32776	PARSLEY ENERGY OPERATIONS, LLC	Oil	51332
42-173-32777	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32778	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32779	TMBR/SHARP DRILLING, INC.	Oil	43257
42-173-32780	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32781	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32782	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32783	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32784	COG OPERATING LLC	Oil	22021
42-173-32785	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32786	COG OPERATING LLC	Oil	53012
42-173-32787	TEXAN PETROLEUM CORPORATION
42-173-32788	XTO ENERGY INC.	Oil	35614
42-173-32789	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32790	PARSLEY ENERGY OPERATIONS, LLC	Oil	54162
42-173-32791
42-173-32792	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32793	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32794	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32795	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32796	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32797
42-173-32798
42-173-32799	Cox, John L.
42-173-32800	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32801	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32802	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32803	Bta Oil Producers
42-173-32804	PARSLEY ENERGY OPERATIONS, LLC	Oil	52818
42-173-32805	HALLWOOD PETROLEUM, INC.	Oil	35519
42-173-32806	MEWBOURNE OIL COMPANY	Oil	35655
42-173-32807	FINA PIPE LINE CO.
42-173-32808	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32809	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32810	DEVON ENERGY PRODUCTION CO, L.P.	Oil	35616
42-173-32811	STANOLIND PRODUCTION LLC	Gas	280449
42-173-32812	FED OPERATING LLC	Oil	52594
42-173-32813	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32814	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32815	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32816	DYAD PETROLEUM COMPANY	Oil	35686
42-173-32817	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32818	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32819	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32820	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32821	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32822	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32823	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32824	Santa Fe Energy Resources, Inc.
42-173-32825	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32826	OVINTIV USA INC.	Oil	35634
42-173-32827	Bta Oil Producers
42-173-32828	ENDEAVOR ENERGY RESOURCES L.P.	Oil	31536
42-173-32829	El Paso Natural Gas Company
42-173-32830	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32831	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32832	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32833	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32834	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32835	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32836	DYAD PETROLEUM COMPANY	Oil	35610
42-173-32837	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32838	MEWBOURNE OIL COMPANY	Oil	35655
42-173-32839	MEWBOURNE OIL COMPANY	Oil	20788
42-173-32840	MEWBOURNE OIL COMPANY
42-173-32841	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32842	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32843	PARSLEY ENERGY OPERATIONS, LLC	Oil	44154
42-173-32844	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32845	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32846	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32847	OVINTIV USA INC.	Oil	35666
42-173-32848
42-173-32849	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32850
42-173-32851	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32852	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32853	OVINTIV USA INC.	Oil	35712
42-173-32854	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32855	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32856	TREND EXPLORATION COMPANY
42-173-32857
42-173-32858	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32859	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32860	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32861	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32862	OXY USA INC.	Oil	35745
42-173-32863	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32864	MAVERICK DISPOSAL, LLC	Oil	46368
42-173-32865	BTA OIL PRODUCERS, LLC	Oil	35667
42-173-32866
42-173-32867	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32868	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32869	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32870	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32871	ORYX ENERGY COMPANY
42-173-32872
42-173-32873
42-173-32874	ORYX ENERGY COMPANY
42-173-32875
42-173-32876
42-173-32877	MEWBOURNE OIL COMPANY	Oil	40015
42-173-32878	MEWBOURNE OIL COMPANY
42-173-32879	MEWBOURNE OIL COMPANY
42-173-32880	PARSLEY ENERGY OPERATIONS, LLC	Oil	44154
42-173-32881	MEWBOURNE OIL COMPANY
42-173-32882	CAMBRIAN MANAGEMENT, LTD.	Oil	43505
42-173-32883	Bta Oil Producers
42-173-32884	FED OPERATING LLC	Oil	35759
42-173-32885	OXY USA INC.	Oil	35782
42-173-32886
42-173-32887	AGUA LIBRE MIDSTREAM LLC	Oil	53058
42-173-32888	Bta Oil Producers
42-173-32889	Bta Oil Producers
42-173-32890	Apache Corporation	Oil	30640
42-173-32891	Apache Corporation	Oil	30640
42-173-32892	Bta Oil Producers	Oil	35862
42-173-32893	Apache Corporation	Oil	30640
42-173-32894	Apache Corporation	Oil	49951
42-173-32895	Apache Corporation	Oil	30640
42-173-32896	CAPATAZ OPERATING, INC.
42-173-32897	ARCO PERMIAN
42-173-32898
42-173-32899
42-173-32900	OXY USA INC.	Oil	53953
42-173-32901	MCCLURE OIL COMPANY, INC.	Oil	36047
42-173-32902	RANGE PRODUCTION COMPANY
42-173-32903	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32904	RANGE PRODUCTION COMPANY
42-173-32905	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32906	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32907	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32908	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32909	Bta Oil Producers
42-173-32910	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32911	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32912	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32913	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32914	RANGELAND PETROLEUM CORPORATION
42-173-32915	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32916	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32917	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32918	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32919	PIONEER NATURAL RES. USA, INC.
42-173-32920	PIONEER NATURAL RES. USA, INC.
42-173-32921	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32922	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32923	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32924	Bta Oil Producers
42-173-32925	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32926
42-173-32927	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32928	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32929	PIONEER NATURAL RES. USA, INC.
42-173-32930	PIONEER NATURAL RES. USA, INC.
42-173-32931	PIONEER NATURAL RES. USA, INC.
42-173-32932	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32933	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32934	AMMONITE ENERGY TEXAS, INC.
42-173-32935
42-173-32936	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32937
42-173-32938	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32939	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32940	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32941	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32942	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32943	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32944	REO OPERATING LLC	Oil	36155
42-173-32945	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32946	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32947	Bta Oil Producers
42-173-32948	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32949	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32950	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32951	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32952	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32953	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32954	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32955	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32956	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32957	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32958	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32959	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32960	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32961	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32962	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32963	PARSLEY ENERGY OPERATIONS, LLC	Oil	36079
42-173-32964	OXY USA INC.	Oil	53953
42-173-32965	VANGUARD OPERATING, LLC	Oil	36019
42-173-32966	OXY USA INC.	Oil	50427
42-173-32967	Bta Oil Producers
42-173-32968	PARSLEY ENERGY OPERATIONS, LLC	Oil	36055
42-173-32969
42-173-32970	PARSLEY ENERGY OPERATIONS, LLC	Oil	52925
42-173-32971	MEWBOURNE OIL COMPANY	Oil	36248
42-173-32972	Hunt Oil Company	Oil	21301
42-173-32973	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06404
42-173-32974	Hunt Oil Company	Oil	06478
42-173-32975	MDC OPERATING, INC.
42-173-32976	Hunt Oil Company	Oil	15569
42-173-32977	Hunt Oil Company	Oil	19302
42-173-32978	Hunt Oil Company	Oil	36364
42-173-32979	MDC OPERATING, INC.	Oil	36133
42-173-32980	Hunt Oil Company	Oil	06392
42-173-32981	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06387
42-173-32982	ENDEAVOR ENERGY RESOURCES L.P.	Oil	50225
42-173-32983	Hunt Oil Company	Oil	14594
42-173-32984	RANGE PRODUCTION COMPANY
42-173-32985	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32986	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32987	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32988	Hunt Oil Company	Oil	14594
42-173-32989	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32990	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32991	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32992	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32993	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-32994	Cobra Oil & Gas Corporation
42-173-32995	Hunt Oil Company	Oil	14594
42-173-32996	ENDEAVOR ENERGY RESOURCES L.P.	Oil	09904
42-173-32997	Hunt Oil Company	Oil	15630
42-173-32998	MEWBOURNE OIL COMPANY
42-173-32999	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33000	AMMONITE ENERGY TEXAS, INC.
42-173-33001	VENTEX OPERATING CORP.	Oil	36185
42-173-33002	ENDEAVOR ENERGY RESOURCES L.P.	Oil	08826
42-173-33003	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06387
42-173-33004	FED OPERATING LLC	Oil	52972
42-173-33005	CONCHO RESOURCES INC.
42-173-33006	Hunt Oil Company	Oil	08908
42-173-33007	Hunt Oil Company	Oil	06399
42-173-33008	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06404
42-173-33009	Hunt Oil Company	Oil	20211
42-173-33010	Hunt Oil Company	Oil	06478
42-173-33011	Bta Oil Producers
42-173-33012	CHEVRON U. S. A. INC.	Oil	36224
42-173-33013	Bta Oil Producers
42-173-33014	Bta Oil Producers
42-173-33015	OXY USA INC.	Oil	36254
42-173-33016	OXY USA INC.	Oil	50427
42-173-33017	Hunt Oil Company	Oil	33259
42-173-33018	CAPATAZ OPERATING, INC.	Oil	14987
42-173-33019	EL PASO PRODUCTION OIL & GAS CO.	Oil	36345
42-173-33020	Coastal Oil & Gas Corporation
42-173-33021	RANGE PRODUCTION COMPANY	Oil	36301
42-173-33022	DE3 OPERATING LLC	Oil	36285
42-173-33023	XTO ENERGY INC.	Oil	36327
42-173-33024	CIMAREX ENERGY CO. OF COLORADO	Oil	42224
42-173-33025	KERR-MCGEE OIL & GAS ONSHORE LLC	Oil	42224
42-173-33026	KERR-MCGEE OIL & GAS ONSHORE LLC	Oil	42224
42-173-33027	KERR-MCGEE OIL & GAS ONSHORE LLC	Oil	42224
42-173-33028	SPIRAL ENERGY CORP.	Oil	39792
42-173-33029	Hunt Oil Company	Oil	06400
42-173-33030	ENDEAVOR ENERGY RESOURCES L.P.	Oil	50225
42-173-33031	Great Western Drilling Company
42-173-33032
42-173-33033	Hunt Oil Company	Oil	20211
42-173-33034	ROYALTY LAND & DEV. CO., INC.
42-173-33035	SHARP IMAGE ENERGY, INC.	Oil	36554
42-173-33036	ENDEAVOR ENERGY RESOURCES L.P.	Oil	39026
42-173-33037	XTO ENERGY INC.	Oil	30767
42-173-33038	XTO ENERGY INC.	Oil	30767
42-173-33039	VENTEX OPERATING CORP.	Oil	36601
42-173-33040	OXY USA INC.	Oil	36504
42-173-33041	ROYALTY LAND & DEV. CO., INC.
42-173-33042	Apache Corporation	Oil	50225
42-173-33043	OXY USA INC.	Oil	53953
42-173-33044	ASHBROOK OIL CO.	Oil	47984
42-173-33045	OXY USA INC.	Oil	52445
42-173-33046	LADD OIL & GAS CORPORATION	Oil	35214
42-173-33047	CONCHO RESOURCES INC.
42-173-33048	OXY USA INC.	Oil	50427
42-173-33049	RANGE PRODUCTION COMPANY
42-173-33050	DE OPERATING LLC	Oil	36564
42-173-33051	TERRACE PETROLEUM CORPORATION
42-173-33052	SOUTHWESTERN ENERGY PROD. CO.
42-173-33053
42-173-33054	ENDEAVOR ENERGY RESOURCES L.P.
42-173-33055	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36656
42-173-33056	EOG Resources, Inc.
42-173-33057	Apache Corporation	Oil	46360
42-173-33058	WESTPORT OIL AND GAS COMPANY INC
42-173-33059	Apache Corporation	Oil	46386
42-173-33060	Cobra Oil & Gas Corporation	Oil	34785
42-173-33061
42-173-33062	RANGE PRODUCTION COMPANY
42-173-33063	RANGE PRODUCTION COMPANY
42-173-33064	OXY USA INC.	Oil	36867
42-173-33065	JM COX RESOURCES, L.P.	Oil	23752
42-173-33066	EL PASO FIELD SERVICES COMPANY
42-173-33067	JM COX RESOURCES, L.P.	Oil	36751
42-173-33068	ALON USA, LP
42-173-33069	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36753
42-173-33070	MEWBOURNE OIL COMPANY	Oil	36740
42-173-33071	RANGE PRODUCTION COMPANY	Oil	36706
42-173-33072	OXY USA INC.	Oil	36844
42-173-33073	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36914
42-173-33074	EOG Resources, Inc.
42-173-33075	VERITAS ENERGY, LLC	Oil	36864
42-173-33076	DIAMONDBACK E&P LLC	Oil	36936
42-173-33077	EOG Resources, Inc.
42-173-33078	EOG Resources, Inc.
42-173-33079	EOG Resources, Inc.
42-173-33080	STANOLIND PRODUCTION LLC	Gas	221224
42-173-33081	PARSLEY ENERGY OPERATIONS, LLC	Oil	54164
42-173-33082	MDC OPERATING, INC.	Oil	27397
42-173-33083	EOG Resources, Inc.
42-173-33084	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33085	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33086	ROYALTY LAND & DEV. CO., INC.
42-173-33087	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33088	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37047
42-173-33089	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37327
42-173-33090	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33091	OXY USA INC.	Oil	52445
42-173-33092	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36914
42-173-33093	TXP, INCORPORATED
42-173-33094	DIAMONDBACK E&P LLC	Gas	205558
42-173-33095	O'NEILL PROPERTIES, LTD.
42-173-33096	RANGE PRODUCTION COMPANY
42-173-33097	Hunt Oil Company	Oil	20211
42-173-33098	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06387
42-173-33099	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33100	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33101	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33102	PARSLEY ENERGY OPERATIONS, LLC	Oil	43686
42-173-33103	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33104	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33105	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33106	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33107	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33108	Cobra Oil & Gas Corporation	Oil	34785
42-173-33109	PIONEER NATURAL RES. USA, INC.	Oil	37064
42-173-33110	PIONEER NATURAL RES. USA, INC.	Oil	06607
42-173-33111	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37193
42-173-33112	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36914
42-173-33113	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33114	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33115	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33116	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33117	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37193
42-173-33118	DE3 OPERATING LLC	Oil	49673
42-173-33119	ATROPOS EXPLORATION COMPANY	Oil	37255
42-173-33120	RANGE PRODUCTION COMPANY
42-173-33121	RANGE PRODUCTION COMPANY
42-173-33122	SHARP IMAGE ENERGY, INC.
42-173-33123	TXU LONE STAR PIPELINE
42-173-33124	ENERGEN RESOURCES CORPORATION	Oil	40221
42-173-33125	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33126	DIAMONDBACK E&P LLC	Oil	40443
42-173-33127	PIONEER NATURAL RES. USA, INC.	Oil	22340
42-173-33128	ATROPOS EXPLORATION COMPANY	Oil	53117
42-173-33129	PIONEER NATURAL RES. USA, INC.	Oil	23439
42-173-33130	PIONEER NATURAL RES. USA, INC.	Oil	23871
42-173-33131	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33132	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33133	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33134	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37510
42-173-33135	STANOLIND PRODUCTION LLC	Oil	29076
42-173-33136	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33137	NADEL AND GUSSMAN PERMIAN,L.L.C.
42-173-33138	DISCOVERY OPERATING, INC.	Oil	37536
42-173-33139
42-173-33140	DE3 OPERATING LLC	Oil	37448
42-173-33141	SHARP IMAGE ENERGY, INC.
42-173-33142	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37701
42-173-33143	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33144	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33145	PIONEER NATURAL RES. USA, INC.	Oil	24037
42-173-33146	RICHMOND DRILLING COMPANY, INC.
42-173-33147	PIONEER NATURAL RES. USA, INC.	Oil	22340
42-173-33148	PIONEER NATURAL RES. USA, INC.	Oil	22340
42-173-33149	PIONEER NATURAL RES. USA, INC.	Oil	22340
42-173-33150	ATROPOS EXPLORATION COMPANY	Oil	53117
42-173-33151	THOMPSON, J. CLEO
42-173-33152	PIONEER NATURAL RES. USA, INC.	Oil	22415
42-173-33153	PIONEER NATURAL RES. USA, INC.	Oil	37829
42-173-33154	PIONEER NATURAL RES. USA, INC.	Oil	37594
42-173-33155	STANOLIND PRODUCTION LLC	Gas	225764
42-173-33156	STANOLIND PRODUCTION LLC	Oil	29147
42-173-33157	STANOLIND PRODUCTION LLC	Oil	34205
42-173-33158	WESTAR ENERGY, INC.
42-173-33159	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33160	PIONEER NATURAL RES. USA, INC.
42-173-33161	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33162	COG OPERATING LLC	Oil	37784
42-173-33163	COG OPERATING LLC	Oil	37789
42-173-33164	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33165	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33166	PIONEER NATURAL RES. USA, INC.
42-173-33167	PIONEER NATURAL RES. USA, INC.	Oil	37594
42-173-33168	PIONEER NATURAL RES. USA, INC.	Oil	37829
42-173-33169	STANOLIND PRODUCTION LLC	Gas	212563
42-173-33170	PIONEER NATURAL RES. USA, INC.	Oil	23630
42-173-33171
42-173-33172	RANGE PRODUCTION COMPANY
42-173-33173	PARSLEY ENERGY OPERATIONS, LLC	Oil	06483
42-173-33174	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33175	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33176
42-173-33177	PIONEER NATURAL RES. USA, INC.
42-173-33178
42-173-33179	MARINER ENERGY, INC.
42-173-33180	MARINER ENERGY, INC.
42-173-33181	MANHATTAN PETROLEUM, INC.	Oil	38443
42-173-33182	PARSLEY ENERGY OPERATIONS, LLC	Oil	24380
42-173-33183	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33184	PARSLEY ENERGY OPERATIONS, LLC	Oil	24464
42-173-33185	PARSLEY ENERGY OPERATIONS, LLC	Oil	24227
42-173-33186	PIONEER NATURAL RES. USA, INC.	Oil	37594
42-173-33187	PIONEER NATURAL RES. USA, INC.	Oil	37594
42-173-33188	PIONEER NATURAL RES. USA, INC.	Oil	37594
42-173-33189	PARSLEY ENERGY OPERATIONS, LLC	Oil	24194
42-173-33190	PARSLEY ENERGY OPERATIONS, LLC	Oil	24194
42-173-33191	PARSLEY ENERGY OPERATIONS, LLC	Oil	24660
42-173-33192	STANOLIND PRODUCTION LLC	Oil	37801
42-173-33193	PARSLEY ENERGY OPERATIONS, LLC	Oil	24380
42-173-33194	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33195	STANOLIND PRODUCTION LLC	Oil	37714
42-173-33196	Apache Corporation	Oil	06311
42-173-33197	Apache Corporation	Oil	06311
42-173-33198	Apache Corporation	Oil	06311
42-173-33199	Apache Corporation	Oil	06297
42-173-33200	Apache Corporation	Oil	06297
42-173-33201	TERRACE PETROLEUM CORPORATION
42-173-33202	PARSLEY ENERGY OPERATIONS, LLC	Oil	20535
42-173-33203	MARINER ENERGY, INC.
42-173-33204	Apache Corporation	Oil	06293
42-173-33205	Apache Corporation	Oil	06293
42-173-33206	Apache Corporation	Oil	06293
42-173-33207	PIONEER NATURAL RES. USA, INC.	Oil	33003
42-173-33208	PIONEER NATURAL RES. USA, INC.	Oil	37829
42-173-33209	PIONEER NATURAL RES. USA, INC.	Oil	37829
42-173-33210	PIONEER NATURAL RES. USA, INC.	Oil	37829
42-173-33211	PIONEER NATURAL RES. USA, INC.	Oil	37829
42-173-33212	Apache Corporation	Oil	06300
42-173-33213	Apache Corporation	Oil	06300
42-173-33214	Apache Corporation	Oil	06300
42-173-33215	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33216	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33217	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33218	PARSLEY ENERGY OPERATIONS, LLC	Oil	23314
42-173-33219	PARSLEY ENERGY OPERATIONS, LLC	Oil	24596
42-173-33220	PARSLEY ENERGY OPERATIONS, LLC	Oil	24573
42-173-33221	PIONEER NATURAL RES. USA, INC.	Oil	20093
42-173-33222	PIONEER NATURAL RES. USA, INC.	Oil	17996
42-173-33223	Apache Corporation	Oil	49950
42-173-33224	Apache Corporation	Oil	06530
42-173-33225	Apache Corporation	Oil	49912
42-173-33226	PARSLEY ENERGY OPERATIONS, LLC	Oil	06483
42-173-33227	Apache Corporation	Oil	06301
42-173-33228	Apache Corporation	Oil	49919
42-173-33229	STANOLIND PRODUCTION LLC	Gas	281801
42-173-33230	STANOLIND PRODUCTION LLC	Oil	43657
42-173-33231	STANOLIND PRODUCTION LLC	Oil	29147
42-173-33232	HANNATHON PETROLEUM, LLC	Oil	43039
42-173-33233	PIONEER NATURAL RES. USA, INC.	Oil	38192
42-173-33234	PIONEER NATURAL RES. USA, INC.	Oil	38192
42-173-33235	PIONEER NATURAL RES. USA, INC.	Oil	37883
42-173-33236	PIONEER NATURAL RES. USA, INC.	Oil	38121
42-173-33237	PIONEER NATURAL RES. USA, INC.	Oil	38121
42-173-33238	PIONEER NATURAL RES. USA, INC.	Oil	38121
42-173-33239	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33240	STANOLIND PRODUCTION LLC	Oil	43657
42-173-33241	STANOLIND PRODUCTION LLC	Gas	284713
42-173-33242	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33243	PIONEER NATURAL RES. USA, INC.	Oil	38141
42-173-33244	PIONEER NATURAL RES. USA, INC.
42-173-33245	PIONEER NATURAL RES. USA, INC.	Oil	38142
42-173-33246	PIONEER NATURAL RES. USA, INC.	Oil	38142
42-173-33247	PIONEER NATURAL RES. USA, INC.	Oil	38142
42-173-33248	PIONEER NATURAL RES. USA, INC.	Oil	38388
42-173-33249	DIAMONDBACK E&P LLC	Oil	38168
42-173-33250	PIONEER NATURAL RES. USA, INC.	Oil	38944
42-173-33251	MARINER ENERGY, INC.
42-173-33252	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37047
42-173-33253	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37327
42-173-33254	DIAMONDBACK E&P LLC	Oil	38168
42-173-33255	COG OPERATING LLC	Oil	38162
42-173-33256	COG OPERATING LLC	Oil	37789
42-173-33257	HENRY PETROLEUM LP
42-173-33258	PIONEER NATURAL RES. USA, INC.	Oil	38224
42-173-33259	PIONEER NATURAL RES. USA, INC.	Oil	38472
42-173-33260	PIONEER NATURAL RES. USA, INC.	Oil	38851
42-173-33261	PIONEER NATURAL RES. USA, INC.	Oil	39034
42-173-33262	PARSLEY ENERGY OPERATIONS, LLC	Oil	25892
42-173-33263	PIONEER NATURAL RES. USA, INC.	Oil	38688
42-173-33264	PIONEER NATURAL RES. USA, INC.	Oil	38501
42-173-33265	CIMAREX ENERGY CO. OF COLORADO
42-173-33266	CIMAREX ENERGY CO. OF COLORADO
42-173-33267	CIMAREX ENERGY CO. OF COLORADO
42-173-33268	Apache Corporation	Oil	28709
42-173-33269	DIAMONDBACK E&P LLC	Oil	38170
42-173-33270	STANOLIND PRODUCTION LLC	Oil	52076
42-173-33271	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33272	DIAMONDBACK E&P LLC	Oil	38310
42-173-33273	DIAMONDBACK E&P LLC	Oil	38311
42-173-33274	LAREDO PETROLEUM, INC.	Oil	38282
42-173-33275	RUWCO OIL AND GAS CORP.
42-173-33276	TRINITY ENVIRO SWD I, L.L.C.	Oil	40385
42-173-33277	PIONEER NATURAL RES. USA, INC.	Oil	38473
42-173-33278	PIONEER NATURAL RES. USA, INC.	Oil	38173
42-173-33279	DIAMONDBACK E&P LLC	Oil	38168
42-173-33280	DIAMONDBACK E&P LLC	Oil	38168
42-173-33281	PIONEER NATURAL RES. USA, INC.	Oil	38142
42-173-33282	PIONEER NATURAL RES. USA, INC.	Oil	37594
42-173-33283	PIONEER NATURAL RES. USA, INC.	Oil	37594
42-173-33284	PIONEER NATURAL RES. USA, INC.	Oil	37594
42-173-33285	PIONEER NATURAL RES. USA, INC.	Oil	38142
42-173-33286	PIONEER NATURAL RES. USA, INC.	Oil	37829
42-173-33287	ENDEAVOR ENERGY RESOURCES L.P.	Oil	38356
42-173-33288	DIAMONDBACK E&P LLC	Oil	38170
42-173-33289	DIAMONDBACK E&P LLC	Oil	38169
42-173-33290	DIAMONDBACK E&P LLC	Oil	38169
42-173-33291	DIAMONDBACK E&P LLC	Oil	38169
42-173-33292	DIAMONDBACK E&P LLC	Oil	38310
42-173-33293	MCCLURE OIL COMPANY, INC.	Oil	38652
42-173-33294	MDC OPERATING, INC.	Oil	52605
42-173-33295	Apache Corporation	Oil	06311
42-173-33296	Apache Corporation	Oil	06311
42-173-33297	SAMSON LONE STAR, LLC	Oil	38365
42-173-33298	REEF EXPLORATION, L.P.
42-173-33299	DIAMONDBACK E&P LLC	Oil	38169
42-173-33300	REEF EXPLORATION, L.P.
42-173-33301	REEF EXPLORATION, L.P.
42-173-33302	REEF EXPLORATION, L.P.
42-173-33303	REEF EXPLORATION, L.P.
42-173-33304	Apache Corporation	Oil	06309
42-173-33305	Apache Corporation	Oil	06530
42-173-33306	PARSLEY ENERGY OPERATIONS, LLC	Oil	24660
42-173-33307	STANOLIND PRODUCTION LLC	Oil	43657
42-173-33308	STANOLIND PRODUCTION LLC	Oil	29147
42-173-33309	MCCLURE OIL COMPANY, INC.	Oil	38754
42-173-33310	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33311	Apache Corporation	Oil	30601
42-173-33312	MANHATTAN PETROLEUM, INC.
42-173-33313	MANHATTAN PETROLEUM, INC.
42-173-33314	MCCLURE OIL COMPANY, INC.	Oil	39664
42-173-33315	ENDEAVOR ENERGY RESOURCES L.P.	Oil	38356
42-173-33316	Apache Corporation	Oil	49949
42-173-33317	Apache Corporation	Oil	06300
42-173-33318	Apache Corporation	Oil	06301
42-173-33319	Apache Corporation	Oil	06311
42-173-33320	Apache Corporation	Oil	06311
42-173-33321	PIONEER NATURAL RES. USA, INC.	Oil	38388
42-173-33322	PIONEER NATURAL RES. USA, INC.	Oil	38472
42-173-33323	PIONEER NATURAL RES. USA, INC.	Oil	38520
42-173-33324	PIONEER NATURAL RES. USA, INC.	Oil	38851
42-173-33325	PIONEER NATURAL RES. USA, INC.	Oil	38142
42-173-33326	PIONEER NATURAL RES. USA, INC.	Oil	37829
42-173-33327	Apache Corporation	Oil	06300
42-173-33328	PIONEER NATURAL RES. USA, INC.	Oil	38141
42-173-33329	PIONEER NATURAL RES. USA, INC.
42-173-33330	PIONEER NATURAL RES. USA, INC.
42-173-33331	MCCLURE OIL COMPANY, INC.	Oil	48008
42-173-33332	Apache Corporation	Oil	30601
42-173-33333	Apache Corporation	Oil	06301
42-173-33334	Apache Corporation	Oil	06306
42-173-33335	PIONEER NATURAL RES. USA, INC.	Oil	38944
42-173-33336	PIONEER NATURAL RES. USA, INC.	Oil	38686
42-173-33337	ENDEAVOR ENERGY RESOURCES L.P.	Oil	38474
42-173-33338	DIAMONDBACK E&P LLC	Oil	38702
42-173-33339	GRIFFIN PETROLEUM COMPANY
42-173-33340	PIONEER NATURAL RES. USA, INC.	Oil	38462
42-173-33341	PIONEER NATURAL RES. USA, INC.	Oil	38462
42-173-33342	PIONEER NATURAL RES. USA, INC.	Oil	39194
42-173-33343	ENDEAVOR ENERGY RESOURCES L.P.	Oil	38636
42-173-33344	PIONEER NATURAL RES. USA, INC.	Oil	34011
42-173-33345	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33346	PIONEER NATURAL RES. USA, INC.	Oil	44209
42-173-33347	LAREDO PETROLEUM, INC.	Oil	38673
42-173-33348	LAREDO PETROLEUM, INC.	Oil	38673
42-173-33349	ATMOS ENERGY CORP., MID-TEX DIV.
42-173-33350	CHEVRON U. S. A. INC.	Gas	236869
42-173-33351	ELEMENT PETROLEUM OPERATING, LLC	Oil	39703
42-173-33352	LAREDO PETROLEUM, INC.	Oil	38835
42-173-33353	OVINTIV USA INC.	Oil	38718
42-173-33354	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33355	STANOLIND PRODUCTION LLC	Oil	25052
42-173-33356	MARINER ENERGY, INC.
42-173-33357	MARINER ENERGY, INC.
42-173-33358	PARSLEY ENERGY OPERATIONS, LLC	Oil	06483
42-173-33359	PARSLEY ENERGY OPERATIONS, LLC	Oil	24855
42-173-33360	OVINTIV USA INC.	Oil	39617
42-173-33361	PARSLEY ENERGY OPERATIONS, LLC	Oil	06349
42-173-33362	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33363	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33364	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-33365	PIONEER NATURAL RES. USA, INC.	Oil	38688
42-173-33366	Apache Corporation	Oil	06309
42-173-33367	Apache Corporation	Oil	06309
42-173-33368	Apache Corporation	Oil	06309
42-173-33369	Apache Corporation	Oil	06309
42-173-33370	ATROPOS EXPLORATION COMPANY	Oil	38724
42-173-33371	ENDEAVOR ENERGY RESOURCES L.P.	Oil	38356
42-173-33372	ENDEAVOR ENERGY RESOURCES L.P.	Oil	38356
42-173-33373
42-173-33374	ENDEAVOR ENERGY RESOURCES L.P.	Oil	38636
42-173-33375	COG OPERATING LLC	Oil	38162
42-173-33376	COG OPERATING LLC	Oil	37789
42-173-33377	Apache Corporation	Oil	38809
42-173-33378	PIONEER NATURAL RES. USA, INC.	Oil	38388
42-173-33379	Apache Corporation	Oil	39039
42-173-33380	PIONEER NATURAL RES. USA, INC.	Oil	39034
42-173-33381	PIONEER NATURAL RES. USA, INC.	Oil	39092
42-173-33382	PIONEER NATURAL RES. USA, INC.	Oil	39353
42-173-33383	MCCLURE OIL COMPANY, INC.	Oil	38754
42-173-33384	PIONEER NATURAL RES. USA, INC.	Oil	39475
42-173-33385	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06387
42-173-33386	Hunt Oil Company	Oil	06478
42-173-33387	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33388	STANOLIND PRODUCTION LLC	Oil	39084
42-173-33389	PIONEER NATURAL RES. USA, INC.	Oil	39512
42-173-33390	PIONEER NATURAL RES. USA, INC.	Oil	39145
42-173-33391	XTO ENERGY INC.	Oil	38901
42-173-33392	XTO ENERGY INC.	Oil	38900
42-173-33393	PIONEER NATURAL RES. USA, INC.	Oil	39219
42-173-33394	PIONEER NATURAL RES. USA, INC.	Oil	39048
42-173-33395	PIONEER NATURAL RES. USA, INC.	Oil	40529
42-173-33396	ATROPOS EXPLORATION COMPANY	Oil	53119
42-173-33397	Hunt Oil Company	Oil	20211
42-173-33398	ENDEAVOR ENERGY RESOURCES L.P.	Oil	38636
42-173-33399	OVINTIV USA INC.	Oil	39167
42-173-33400	OVINTIV USA INC.	Oil	39167
42-173-33401	LAREDO PETROLEUM, INC.	Oil	39051
42-173-33402	LAREDO PETROLEUM, INC.	Oil	39196
42-173-33403	Hunt Oil Company	Oil	15630
42-173-33404	Hunt Oil Company	Oil	15569
42-173-33405	LAREDO PETROLEUM, INC.	Oil	39316
42-173-33406	MCCLURE OIL COMPANY, INC.	Oil	39664
42-173-33407	PIONEER NATURAL RES. USA, INC.	Oil	40148
42-173-33408	PIONEER NATURAL RES. USA, INC.	Oil	39333
42-173-33409	OVINTIV USA INC.	Oil	38718
42-173-33410	PIONEER NATURAL RES. USA, INC.	Oil	39349
42-173-33411	PIONEER NATURAL RES. USA, INC.	Oil	39138
42-173-33412	PIONEER NATURAL RES. USA, INC.	Oil	39350
42-173-33413	COG OPERATING LLC	Oil	37789
42-173-33414	MCCLURE OIL COMPANY, INC.	Oil	39664
42-173-33415	OVINTIV USA INC.	Oil	39348
42-173-33416	LAREDO PETROLEUM, INC.	Oil	39118
42-173-33418	Hunt Oil Company	Oil	06392
42-173-33419	Apache Corporation	Oil	39331
42-173-33420	STANOLIND PRODUCTION LLC	Gas	284701
42-173-33421	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33422	MARINER ENERGY, INC.
42-173-33423	MARINER ENERGY, INC.
42-173-33424	Apache Corporation	Oil	39557
42-173-33425	Apache Corporation	Oil	39105
42-173-33426
42-173-33427	MCCLURE OIL COMPANY, INC.
42-173-33428	ENDEAVOR ENERGY RESOURCES L.P.	Oil	38356
42-173-33429	LAREDO PETROLEUM, INC.	Oil	39049
42-173-33430	LAREDO PETROLEUM, INC.	Oil	38673
42-173-33431	KAISER-FRANCIS OIL COMPANY	Oil	39528
42-173-33432	Apache Corporation	Oil	39553
42-173-33433	PIONEER NATURAL RES. USA, INC.	Oil	38472
42-173-33434	PIONEER NATURAL RES. USA, INC.	Oil	38688
42-173-33435	PIONEER NATURAL RES. USA, INC.	Oil	40538
42-173-33436
42-173-33437	SOUTHWEST ROYALTIES, INC.	Oil	39363
42-173-33438	LAREDO PETROLEUM, INC.	Oil	39243
42-173-33439	PAGE OPERATING, LLC
42-173-33440	PAGE OPERATING, LLC
42-173-33441	PIONEER NATURAL RES. USA, INC.	Oil	39505
42-173-33442	Apache Corporation	Oil	39105
42-173-33443	DIAMONDBACK E&P LLC	Oil	39445
42-173-33444	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24055
42-173-33445	LAREDO PETROLEUM, INC.	Oil	39130
42-173-33446	PIONEER NATURAL RES. USA, INC.	Oil	39405
42-173-33447	PIONEER NATURAL RES. USA, INC.	Oil	40258
42-173-33448	TRILOGY OPERATING, INC.	Oil	49401
42-173-33449	THOMPSON, J. CLEO	Oil	39594
42-173-33450	Apache Corporation	Oil	39105
42-173-33451	LAREDO PETROLEUM, INC.	Oil	39650
42-173-33452	LAREDO PETROLEUM, INC.
42-173-33453
42-173-33454	PIONEER NATURAL RES. USA, INC.	Oil	39524
42-173-33455	PIONEER NATURAL RES. USA, INC.
42-173-33456	Apache Corporation	Oil	40602
42-173-33457	SPECIAL ENERGY CORPORATION
42-173-33458	LAREDO PETROLEUM, INC.	Oil	39332
42-173-33459	SPECIAL ENERGY CORPORATION
42-173-33460	Apache Corporation	Oil	39614
42-173-33461	MARINER ENERGY, INC.
42-173-33462
42-173-33463	Apache Corporation	Oil	40143
42-173-33464	Apache Corporation	Oil	39874
42-173-33465	PIONEER NATURAL RES. USA, INC.	Oil	40090
42-173-33466	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33467	RANGE PRODUCTION COMPANY
42-173-33468	PIONEER NATURAL RES. USA, INC.	Oil	39463
42-173-33469	LAREDO PETROLEUM, INC.	Oil	39051
42-173-33470	LAREDO PETROLEUM, INC.	Oil	39196
42-173-33471	LAREDO PETROLEUM, INC.	Oil	39479
42-173-33472	PARSLEY ENERGY OPERATIONS, LLC	Oil	39518
42-173-33473	PIONEER NATURAL RES. USA, INC.	Oil	39404
42-173-33474	PIONEER NATURAL RES. USA, INC.
42-173-33475	LAREDO PETROLEUM, INC.	Oil	39862
42-173-33476	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33477	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33478	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33479	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33480	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33481	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33482	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33483	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33484	LAREDO PETROLEUM, INC.	Oil	39324
42-173-33485	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33486	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33487	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33488	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33489	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33490	PIONEER NATURAL RES. USA, INC.	Oil	39512
42-173-33491	COG OPERATING LLC	Oil	37789
42-173-33492	PIONEER NATURAL RES. USA, INC.	Oil	40671
42-173-33493	COG OPERATING LLC	Oil	38162
42-173-33494
42-173-33495	PIONEER NATURAL RES. USA, INC.	Oil	38388
42-173-33496	PIONEER NATURAL RES. USA, INC.	Oil	39503
42-173-33497	Apache Corporation	Oil	40477
42-173-33498	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33499	Apache Corporation	Oil	39487
42-173-33500	DYAD PETROLEUM COMPANY
42-173-33501	SCOUT ENERGY MANAGEMENT LLC	Oil	39536
42-173-33502	LAREDO PETROLEUM, INC.
42-173-33503	MCCLURE OIL COMPANY, INC.	Oil	39634
42-173-33504	MCCLURE OIL COMPANY, INC.	Oil	39634
42-173-33505	MCCLURE OIL COMPANY, INC.	Oil	39664
42-173-33506	MCCLURE OIL COMPANY, INC.	Oil	40628
42-173-33507	SCOUT ENERGY MANAGEMENT LLC	Oil	39569
42-173-33508	SCOUT ENERGY MANAGEMENT LLC	Oil	39535
42-173-33509	DIAMONDBACK E&P LLC	Oil	39445
42-173-33510	LAREDO PETROLEUM, INC.	Oil	39872
42-173-33511	XTO ENERGY INC.	Oil	39648
42-173-33512	CROWNQUEST OPERATING, LLC
42-173-33513	PARTEE DRILLING INC.	Oil	39736
42-173-33514	ENDEAVOR ENERGY RESOURCES L.P.	Oil	39766
42-173-33515	OXY USA INC.	Oil	50103
42-173-33516	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33517	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33518	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33519	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33520	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33521	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33522	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33523	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33524	MCCLURE OIL COMPANY, INC.	Oil	39674
42-173-33525	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33526	XTO ENERGY INC.	Oil	38900
42-173-33527	LAREDO PETROLEUM, INC.	Oil	40054
42-173-33528	JUPITER ENERGY, LLC	Oil	43505
42-173-33529	PIONEER NATURAL RES. USA, INC.	Oil	39524
42-173-33530	XTO ENERGY INC.	Oil	41099
42-173-33531	DIAMONDBACK E&P LLC	Oil	39953
42-173-33532	PIONEER NATURAL RES. USA, INC.	Oil	39973
42-173-33533	Apache Corporation	Oil	39686
42-173-33534	COG OPERATING LLC	Oil	37789
42-173-33535	Apache Corporation	Oil	39686
42-173-33536	DIAMONDBACK E&P LLC	Oil	40095
42-173-33537	Apache Corporation	Oil	41078
42-173-33538	XTO ENERGY INC.	Oil	39750
42-173-33539	Apache Corporation	Oil	39747
42-173-33540	Apache Corporation	Oil	40135
42-173-33541	Apache Corporation	Oil	39641
42-173-33542	DIAMONDBACK E&P LLC	Oil	39445
42-173-33543	Apache Corporation	Oil	46746
42-173-33544	MCCLURE OIL COMPANY, INC.
42-173-33545	LAREDO PETROLEUM, INC.	Oil	39872
42-173-33546	Apache Corporation	Oil	39884
42-173-33547	LAREDO PETROLEUM, INC.	Oil	39939
42-173-33548	Apache Corporation	Oil	40135
42-173-33549	ADKINS, R. L. CORP.	Oil	40997
42-173-33550	DIAMONDBACK E&P LLC	Oil	39445
42-173-33551	LAREDO PETROLEUM, INC.
42-173-33552	LAREDO PETROLEUM, INC.	Oil	40019
42-173-33553	LAREDO PETROLEUM, INC.	Oil	40020
42-173-33554	LAREDO PETROLEUM, INC.	Oil	40175
42-173-33555	OXY USA INC.	Oil	40056
42-173-33556	CROWNQUEST OPERATING, LLC
42-173-33557	PIONEER NATURAL RES. USA, INC.	Oil	39951
42-173-33558	Apache Corporation	Oil	39808
42-173-33559	Apache Corporation	Oil	40014
42-173-33560	Apache Corporation	Oil	39972
42-173-33561	LAREDO PETROLEUM, INC.	Oil	40798
42-173-33562	Apache Corporation	Oil	41567
42-173-33563	Apache Corporation	Oil	39105
42-173-33564	LAREDO PETROLEUM, INC.	Oil	40133
42-173-33565	COG OPERATING LLC	Oil	40078
42-173-33566	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33567	LAREDO PETROLEUM, INC.
42-173-33568	LAREDO PETROLEUM, INC.
42-173-33569	LAREDO PETROLEUM, INC.
42-173-33570	FDL OPERATING, LLC	Oil	41062
42-173-33571	MCCLURE OIL COMPANY, INC.	Oil	39664
42-173-33572	MCCLURE OIL COMPANY, INC.	Oil	39634
42-173-33573	DISCOVERY NATURAL RESOURCES LLC	Oil	42065
42-173-33574	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33575	MCCLURE OIL COMPANY, INC.	Oil	39674
42-173-33576	SHERIDAN PRODUCTION COMPANY, LLC
42-173-33577	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33578	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33579	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33580	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33581	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33582	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33583	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33584	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33585	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33586	MCCLURE OIL COMPANY, INC.	Oil	39634
42-173-33587	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33588	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33589	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33590	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33591	DIAMONDBACK E&P LLC	Oil	40292
42-173-33592	PARSLEY ENERGY OPERATIONS, LLC	Oil	40166
42-173-33593	Apache Corporation	Oil	40051
42-173-33594	PIONEER NATURAL RES. USA, INC.	Oil	39524
42-173-33595	Apache Corporation	Oil	40145
42-173-33596	LAREDO PETROLEUM, INC.	Oil	40153
42-173-33597	LAREDO PETROLEUM, INC.	Oil	41036
42-173-33598	LAREDO PETROLEUM, INC.	Oil	40054
42-173-33599	SCOUT ENERGY MANAGEMENT LLC	Oil	40065
42-173-33600	HUNTINGTON ENERGY, L.L.C.
42-173-33601	PIONEER NATURAL RES. USA, INC.	Oil	40435
42-173-33602	PIONEER NATURAL RES. USA, INC.	Oil	39973
42-173-33603	PIONEER NATURAL RES. USA, INC.	Oil	39458
42-173-33604	Apache Corporation	Oil	39641
42-173-33605	Apache Corporation	Oil	40210
42-173-33606	COG OPERATING LLC	Oil	37789
42-173-33607	Apache Corporation	Oil	40144
42-173-33608	Apache Corporation	Oil	40146
42-173-33609	COG OPERATING LLC	Oil	38162
42-173-33610	XTO ENERGY INC.	Oil	38900
42-173-33611	LAREDO PETROLEUM, INC.	Oil	40257
42-173-33612	XTO ENERGY INC.	Oil	38900
42-173-33613	ENERGEN RESOURCES CORPORATION	Oil	40277
42-173-33614	XTO ENERGY INC.	Oil	38900
42-173-33615	Apache Corporation	Oil	40247
42-173-33616	Apache Corporation	Oil	40247
42-173-33617	Apache Corporation	Oil	40146
42-173-33618	XTO ENERGY INC.	Oil	40823
42-173-33619	ENDEAVOR ENERGY RESOURCES L.P.	Oil	26349
42-173-33620	PIONEER NATURAL RES. USA, INC.	Oil	39505
42-173-33621	XTO ENERGY INC.	Oil	38901
42-173-33622	XTO ENERGY INC.	Oil	38900
42-173-33623	Apache Corporation	Oil	40317
42-173-33624	PIONEER NATURAL RES. USA, INC.	Oil	40579
42-173-33625	XTO ENERGY INC.	Oil	40539
42-173-33626	PIONEER NATURAL RES. USA, INC.	Oil	40971
42-173-33627	PIONEER NATURAL RES. USA, INC.	Oil	41086
42-173-33628	XTO ENERGY INC.	Oil	40348
42-173-33629	CHEVRON U. S. A. INC.	Oil	38949
42-173-33630	PIONEER NATURAL RES. USA, INC.	Oil	40860
42-173-33631	THOMPSON, J. CLEO
42-173-33633	NADEL AND GUSSMAN PERMIAN,L.L.C.	Oil	40783
42-173-33634	XTO ENERGY INC.	Oil	29129
42-173-33635	OXY USA INC.	Oil	39670
42-173-33636	OXY USA INC.	Oil	40214
42-173-33637	MCCLURE OIL COMPANY, INC.	Oil	39674
42-173-33638	MCCLURE OIL COMPANY, INC.	Oil	39634
42-173-33639	DIAMONDBACK E&P LLC	Oil	40428
42-173-33640	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24632
42-173-33641	DIAMONDBACK E&P LLC	Oil	40428
42-173-33642	Apache Corporation	Oil	40246
42-173-33643	DIAMONDBACK E&P LLC	Oil	40428
42-173-33644	Apache Corporation	Oil	40243
42-173-33645	Apache Corporation	Oil	40478
42-173-33646	STANOLIND PRODUCTION LLC	Oil	34061
42-173-33647	Apache Corporation	Oil	39747
42-173-33648	LAREDO PETROLEUM, INC.	Oil	40912
42-173-33649	LAREDO PETROLEUM, INC.	Oil	39939
42-173-33650	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24632
42-173-33651	Apache Corporation	Oil	40295
42-173-33652	Apache Corporation	Oil	40247
42-173-33653	Apache Corporation	Oil	40247
42-173-33654	PIONEER NATURAL RES. USA, INC.	Oil	41423
42-173-33655	PIONEER NATURAL RES. USA, INC.	Oil	38192
42-173-33656	PIONEER NATURAL RES. USA, INC.	Oil	37594
42-173-33657	PIONEER NATURAL RES. USA, INC.	Oil	39350
42-173-33658	PIONEER NATURAL RES. USA, INC.	Oil	39138
42-173-33659	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24632
42-173-33660
42-173-33661	DIAMONDBACK E&P LLC	Oil	40495
42-173-33662	DIAMONDBACK E&P LLC	Oil	40391
42-173-33663	Apache Corporation	Oil	40247
42-173-33664	Apache Corporation	Oil	40474
42-173-33665	PIONEER NATURAL RES. USA, INC.	Oil	40514
42-173-33666	PIONEER NATURAL RES. USA, INC.	Oil	39404
42-173-33667	Apache Corporation	Oil	40904
42-173-33668	Apache Corporation	Oil	40241
42-173-33669	LAREDO PETROLEUM, INC.	Oil	40766
42-173-33670	PIONEER NATURAL RES. USA, INC.	Oil	38944
42-173-33671	PIONEER NATURAL RES. USA, INC.	Oil	39951
42-173-33672	PIONEER NATURAL RES. USA, INC.
42-173-33673	DIAMONDBACK E&P LLC	Oil	39445
42-173-33674	DIAMONDBACK E&P LLC	Oil	39445
42-173-33675	LAREDO PETROLEUM, INC.	Oil	40054
42-173-33676	PIONEER NATURAL RES. USA, INC.	Oil	40934
42-173-33677	SCOUT ENERGY MANAGEMENT LLC	Oil	38539
42-173-33678	Apache Corporation	Oil	39884
42-173-33679	PIONEER NATURAL RES. USA, INC.	Oil	39817
42-173-33680	DIAMONDBACK E&P LLC	Oil	40572
42-173-33681	ENDEAVOR ENERGY RESOURCES L.P.	Oil	38356
42-173-33682	Apache Corporation	Oil	40475
42-173-33683	Apache Corporation	Oil	40475
42-173-33684	Apache Corporation	Oil	40475
42-173-33685	Apache Corporation	Oil	40475
42-173-33686	Apache Corporation	Oil	40294
42-173-33687	Apache Corporation	Oil	40294
42-173-33688	Apache Corporation	Oil	41194
42-173-33689	Apache Corporation	Oil	41194
42-173-33690	Apache Corporation	Oil	41194
42-173-33691	Apache Corporation	Oil	41194
42-173-33692	Apache Corporation	Oil	41071
42-173-33693
42-173-33694	Apache Corporation	Oil	40473
42-173-33695	MARINER ENERGY, INC.
42-173-33696	Apache Corporation	Oil	40051
42-173-33697	Apache Corporation	Oil	41230
42-173-33698	Apache Corporation	Oil	41230
42-173-33699	Apache Corporation	Oil	41230
42-173-33700	MARINER ENERGY, INC.
42-173-33701	PARSLEY ENERGY OPERATIONS, LLC	Oil	40852
42-173-33702	FDL OPERATING, LLC	Oil	41062
42-173-33703	LAREDO PETROLEUM, INC.	Oil	41228
42-173-33704	LAREDO PETROLEUM, INC.	Oil	40909
42-173-33705	LAREDO PETROLEUM, INC.	Oil	41252
42-173-33706	OVINTIV USA INC.	Oil	39167
42-173-33707	ENDEAVOR ENERGY RESOURCES L.P.	Oil	40755
42-173-33708	ENDEAVOR ENERGY RESOURCES L.P.	Oil	39766
42-173-33709	Apache Corporation	Oil	40816
42-173-33710	Apache Corporation	Oil	41618
42-173-33711	MARINER ENERGY, INC.
42-173-33712	DIAMONDBACK E&P LLC	Oil	41496
42-173-33713	Apache Corporation	Oil	40684
42-173-33714	LAREDO PETROLEUM, INC.	Oil	40284
42-173-33715	PIONEER NATURAL RES. USA, INC.	Oil	39973
42-173-33716	LAREDO PETROLEUM, INC.	Oil	41779
42-173-33717	Apache Corporation	Oil	41038
42-173-33718	COG OPERATING LLC	Oil	38162
42-173-33719	CROWNQUEST OPERATING, LLC	Oil	40686
42-173-33720	Apache Corporation	Oil	41326
42-173-33721	Apache Corporation	Oil	42709
42-173-33722	MARINER ENERGY, INC.
42-173-33723	PIONEER NATURAL RES. USA, INC.	Oil	39350
42-173-33724	PIONEER NATURAL RES. USA, INC.	Oil	39951
42-173-33725	COG OPERATING LLC	Oil	37789
42-173-33726	LAREDO PETROLEUM, INC.	Oil	40930
42-173-33727	XTO ENERGY INC.	Oil	40823
42-173-33728	ENTERPRISE PRODUCTS OPERATINGLLC
42-173-33729	OVINTIV USA INC.	Oil	39617
42-173-33730	Apache Corporation	Oil	41158
42-173-33731	LAREDO PETROLEUM, INC.	Oil	40284
42-173-33732	Apache Corporation	Oil	39808
42-173-33733	ENDEAVOR ENERGY RESOURCES L.P.	Oil	41148
42-173-33734	Apache Corporation	Oil	39255
42-173-33735	Apache Corporation	Oil	41761
42-173-33736	Apache Corporation	Oil	41761
42-173-33737	Apache Corporation	Oil	40595
42-173-33738	Apache Corporation	Oil	39686
42-173-33739	Apache Corporation	Oil	42528
42-173-33740	OVINTIV USA INC.	Oil	40873
42-173-33741	Apache Corporation	Oil	39487
42-173-33742	TRILOGY OPERATING, INC.	Oil	49401
42-173-33743	TRILOGY OPERATING, INC.	Oil	39129
42-173-33744	DISCOVERY NATURAL RESOURCES LLC	Oil	40685
42-173-33745	DISCOVERY NATURAL RESOURCES LLC	Oil	42065
42-173-33746	FED OPERATING LLC	Oil	40393
42-173-33747	OXY USA INC.	Oil	40806
42-173-33748	OVINTIV USA INC.	Oil	41366
42-173-33749	OVINTIV USA INC.	Oil	40958
42-173-33750	ENDEAVOR ENERGY RESOURCES L.P.	Oil	40837
42-173-33751	ENDEAVOR ENERGY RESOURCES L.P.	Oil	41184
42-173-33752	LAREDO PETROLEUM, INC.	Oil	40834
42-173-33753	LAREDO PETROLEUM, INC.	Oil	40834
42-173-33754	LAREDO PETROLEUM, INC.	Oil	40571
42-173-33755	LAREDO PETROLEUM, INC.	Oil	40133
42-173-33756	LAREDO PETROLEUM, INC.	Oil	42626
42-173-33757	LAREDO PETROLEUM, INC.	Oil	41603
42-173-33758	Apache Corporation	Oil	41948
42-173-33759	Apache Corporation	Oil	39105
42-173-33760	Apache Corporation	Oil	40869
42-173-33761	ENERGEN RESOURCES CORPORATION	Oil	40277
42-173-33762	ELEPHANT-ARABELLA OPERATING, LLC
42-173-33763	ELEPHANT-ARABELLA OPERATING, LLC
42-173-33764	PIONEER NATURAL RES. USA, INC.	Oil	22340
42-173-33765	Apache Corporation	Oil	44867
42-173-33766	Basic Energy Services, L.P.
42-173-33767	Basic Energy Services, L.P.
42-173-33768	CROWNQUEST OPERATING, LLC
42-173-33769	LAREDO PETROLEUM, INC.	Oil	40571
42-173-33770	XTO ENERGY INC.	Oil	41786
42-173-33771	PIONEER NATURAL RES. USA, INC.	Oil	41000
42-173-33772	XTO ENERGY INC.	Oil	40898
42-173-33773	LAREDO PETROLEUM, INC.	Oil	40153
42-173-33774	PIONEER NATURAL RES. USA, INC.	Oil	42080
42-173-33775	LAREDO PETROLEUM, INC.	Oil	41077
42-173-33776	LAREDO PETROLEUM, INC.	Oil	41436
42-173-33777	LAREDO PETROLEUM, INC.	Oil	41603
42-173-33778	Apache Corporation	Oil	40926
42-173-33779	LAREDO PETROLEUM, INC.	Oil	40020
42-173-33780	XTO ENERGY INC.	Oil	54435
42-173-33781	PIONEER NATURAL RES. USA, INC.	Oil	39524
42-173-33782	Apache Corporation	Oil	41178
42-173-33783	CONOCOPHILLIPS COMPANY
42-173-33784	OXY USA INC.	Oil	50105
42-173-33785	OVINTIV USA INC.	Oil	39792
42-173-33786	Apache Corporation	Oil	41229
42-173-33787	MARINER ENERGY, INC.
42-173-33788	Apache Corporation	Oil	40815
42-173-33789	Hunt Oil Company	Oil	06596
42-173-33790	LAREDO PETROLEUM, INC.	Oil	41632
42-173-33791	LAREDO PETROLEUM, INC.	Oil	42351
42-173-33792	LAREDO PETROLEUM, INC.	Oil	41445
42-173-33793	LAREDO PETROLEUM, INC.	Oil	40175
42-173-33794	PIONEER NATURAL RES. USA, INC.	Oil	41946
42-173-33795	LAREDO PETROLEUM, INC.	Oil	43541
42-173-33796	COG OPERATING LLC	Oil	38162
42-173-33797	TRILOGY OPERATING, INC.	Oil	49400
42-173-33798	LAREDO PETROLEUM, INC.	Oil	41632
42-173-33799	PIONEER NATURAL RES. USA, INC.	Oil	41944
42-173-33800	LAREDO PETROLEUM, INC.	Oil	41843
42-173-33801	COG OPERATING LLC	Oil	37789
42-173-33802	XTO ENERGY INC.	Oil	29129
42-173-33803	Apache Corporation	Oil	40854
42-173-33804	KAISER-FRANCIS OIL COMPANY	Oil	41611
42-173-33805	OXY USA INC.	Oil	50104
42-173-33806	COG OPERATING LLC
42-173-33807	Apache Corporation	Oil	41197
42-173-33808	Apache Corporation	Oil	45960
42-173-33809	OVINTIV USA INC.	Oil	40958
42-173-33810	OVINTIV USA INC.	Oil	41731
42-173-33811	OVINTIV USA INC.	Oil	41622
42-173-33812	OVINTIV USA INC.	Oil	41622
42-173-33813	MDC TEXAS OPERATOR LLC	Oil	42126
42-173-33814	Apache Corporation	Oil	39747
42-173-33815	Apache Corporation	Oil	41198
42-173-33816	ENDEAVOR ENERGY RESOURCES L.P.	Oil	40918
42-173-33817	ENDEAVOR ENERGY RESOURCES L.P.	Oil	26348
42-173-33818	PIONEER NATURAL RES. USA, INC.	Oil	41087
42-173-33819	Apache Corporation	Oil	39884
42-173-33820	DIAMONDBACK E&P LLC	Oil	40428
42-173-33821	PIONEER NATURAL RES. USA, INC.	Oil	38388
42-173-33822	PIONEER NATURAL RES. USA, INC.	Oil	41000
42-173-33823	PIONEER NATURAL RES. USA, INC.	Oil	41086
42-173-33824	DIAMONDBACK E&P LLC	Oil	40428
42-173-33825	LAREDO PETROLEUM, INC.	Oil	42544
42-173-33826	DIAMONDBACK E&P LLC	Oil	40428
42-173-33827	LAREDO PETROLEUM, INC.	Oil	40912
42-173-33828	LAREDO PETROLEUM, INC.	Oil	42935
42-173-33829	LAREDO PETROLEUM, INC.	Oil	42092
42-173-33830	LAREDO PETROLEUM, INC.	Oil	41603
42-173-33831	OVINTIV USA INC.	Oil	40873
42-173-33832	OVINTIV USA INC.	Oil	40873
42-173-33833	Apache Corporation	Oil	40866
42-173-33834	LAREDO PETROLEUM, INC.	Oil	41792
42-173-33835	OVINTIV USA INC.	Oil	40949
42-173-33836	LAREDO PETROLEUM, INC.	Oil	41534
42-173-33837	MCCLURE OIL COMPANY, INC.
42-173-33838	COG OPERATING LLC	Oil	41205
42-173-33839	MCCLURE OIL COMPANY, INC.
42-173-33840	LAREDO PETROLEUM, INC.	Oil	40153
42-173-33841	ENDEAVOR ENERGY RESOURCES L.P.	Oil	38356
42-173-33842	LAREDO PETROLEUM, INC.	Oil	41732
42-173-33843	LAREDO PETROLEUM, INC.	Oil	39939
42-173-33844	Apache Corporation	Oil	40870
42-173-33845	LAREDO PETROLEUM, INC.	Oil	40133
42-173-33846	LAREDO PETROLEUM, INC.	Oil	41445
42-173-33847	LAREDO PETROLEUM, INC.	Oil	41468
42-173-33848	LAREDO PETROLEUM, INC.	Oil	39939
42-173-33849	MCCLURE OIL COMPANY, INC.	Oil	41378
42-173-33850	MCCLURE OIL COMPANY, INC.	Oil	41342
42-173-33851	DESERT PRODUCTION, INC.	Oil	45202
42-173-33852	Apache Corporation	Oil	41206
42-173-33853	Apache Corporation	Oil	41161
42-173-33854	Apache Corporation	Oil	41008
42-173-33855	Apache Corporation	Oil	41176
42-173-33856	Apache Corporation	Oil	41402
42-173-33857	DIAMONDBACK E&P LLC	Oil	40428
42-173-33858	DIAMONDBACK E&P LLC	Oil	40428
42-173-33859	DIAMONDBACK E&P LLC	Oil	40428
42-173-33860	DIAMONDBACK E&P LLC	Oil	40428
42-173-33861	DIAMONDBACK E&P LLC	Oil	40428
42-173-33862	LAREDO PETROLEUM, INC.	Oil	40907
42-173-33863	Apache Corporation	Oil	42679
42-173-33864	DIAMONDBACK E&P LLC	Oil	40428
42-173-33865	DIAMONDBACK E&P LLC	Oil	40428
42-173-33866	DIAMONDBACK E&P LLC	Oil	40428
42-173-33867	DIAMONDBACK E&P LLC	Oil	40428
42-173-33868	DIAMONDBACK E&P LLC	Oil	40428
42-173-33869	DIAMONDBACK E&P LLC	Oil	40428
42-173-33870	DIAMONDBACK E&P LLC	Oil	40428
42-173-33871	DIAMONDBACK E&P LLC	Oil	40428
42-173-33872	DIAMONDBACK E&P LLC	Oil	40428
42-173-33873	LAREDO PETROLEUM, INC.	Oil	40175
42-173-33874	LAREDO PETROLEUM, INC.	Oil	41252
42-173-33875	LAREDO PETROLEUM, INC.	Oil	40175
42-173-33876	DIAMONDBACK E&P LLC	Oil	40428
42-173-33877	DIAMONDBACK E&P LLC	Oil	40428
42-173-33878	LAREDO PETROLEUM, INC.	Oil	42625
42-173-33879	LAREDO PETROLEUM, INC.	Oil	40571
42-173-33880	CONOCOPHILLIPS COMPANY
42-173-33881	LAREDO PETROLEUM, INC.	Oil	41381
42-173-33882	PIONEER NATURAL RES. USA, INC.	Oil	38520
42-173-33883	PIONEER NATURAL RES. USA, INC.	Oil	38501
42-173-33884	Apache Corporation	Oil	41009
42-173-33885	WILLIAMS, CLAYTON ENERGY, INC.	Oil	44391
42-173-33886	WILLIAMS, CLAYTON ENERGY, INC.	Oil	44392
42-173-33887	LAREDO PETROLEUM, INC.	Oil	40133
42-173-33888	Apache Corporation	Oil	41442
42-173-33889	LAREDO PETROLEUM, INC.	Oil	41843
42-173-33890	LAREDO PETROLEUM, INC.	Oil	41603
42-173-33891	LAREDO PETROLEUM, INC.	Oil	40153
42-173-33892	XTO ENERGY INC.	Oil	39750
42-173-33893	Apache Corporation	Oil	41707
42-173-33894	Apache Corporation	Oil	42587
42-173-33895	DIAMONDBACK E&P LLC	Oil	40428
42-173-33896	DIAMONDBACK E&P LLC	Oil	40428
42-173-33897	DIAMONDBACK E&P LLC	Oil	40428
42-173-33898	DIAMONDBACK E&P LLC	Oil	40428
42-173-33899	PIONEER NATURAL RES. USA, INC.	Oil	39724
42-173-33900	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33901	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33902	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33903	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33904	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33905	PIONEER NATURAL RES. USA, INC.	Oil	39571
42-173-33906	NADEL AND GUSSMAN PERMIAN,L.L.C.	Oil	41203
42-173-33907
42-173-33908	MINERAL TECHNOLOGIES, INC.	Oil	41749
42-173-33909	OVINTIV USA INC.	Oil	40949
42-173-33910	OVINTIV USA INC.	Oil	41731
42-173-33911	ENDEAVOR ENERGY RESOURCES L.P.	Oil	41133
42-173-33912	ENDEAVOR ENERGY RESOURCES L.P.	Oil	41133
42-173-33913	Apache Corporation	Oil	41707
42-173-33914	PIONEER NATURAL RES. USA, INC.	Oil	41086
42-173-33915	PIONEER NATURAL RES. USA, INC.	Oil	39145
42-173-33916	CROWNQUEST OPERATING, LLC	Oil	40966
42-173-33917	Apache Corporation	Oil	40932
42-173-33918	LAREDO PETROLEUM, INC.	Oil	41843
42-173-33919	PIONEER NATURAL RES. USA, INC.	Oil	41875
42-173-33920	LAREDO PETROLEUM, INC.	Oil	42537
42-173-33921	Apache Corporation	Oil	44599
42-173-33922	Apache Corporation	Oil	41035
42-173-33923	MINERAL TECHNOLOGIES, INC.	Oil	41803
42-173-33924	OXY USA INC.	Oil	39670
42-173-33925	DIAMONDBACK E&P LLC	Oil	41683
42-173-33926	DIAMONDBACK E&P LLC	Oil	40572
42-173-33927	LAREDO PETROLEUM, INC.	Oil	42934
42-173-33928	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33929	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33930	SHERIDAN PRODUCTION COMPANY, LLC
42-173-33931	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33932	OVINTIV USA INC.	Oil	39617
42-173-33933	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33934	FDL OPERATING, LLC	Oil	41062
42-173-33935	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33936	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33937	Apache Corporation	Oil	41069
42-173-33938	Apache Corporation	Oil	41091
42-173-33939	LAREDO PETROLEUM, INC.	Oil	42044
42-173-33940	MCCLURE OIL COMPANY, INC.	Oil	41449
42-173-33941	Apache Corporation	Oil	41163
42-173-33942	PIONEER NATURAL RES. USA, INC.	Oil	39505
42-173-33943	MCCLURE OIL COMPANY, INC.	Oil	42139
42-173-33944	Apache Corporation	Oil	41160
42-173-33945	LAREDO PETROLEUM, INC.	Oil	41494
42-173-33946	Apache Corporation	Oil	41567
42-173-33947	LAREDO PETROLEUM, INC.	Oil	40834
42-173-33948	LAREDO PETROLEUM, INC.	Oil	42527
42-173-33949	LAREDO PETROLEUM, INC.	Oil	40834
42-173-33950	LAREDO PETROLEUM, INC.
42-173-33951	Apache Corporation
42-173-33952	OVINTIV USA INC.	Oil	39167
42-173-33953	XTO ENERGY INC.	Oil	41871
42-173-33954	LAREDO PETROLEUM, INC.	Oil	40054
42-173-33955	DIAMONDBACK E&P LLC	Oil	41496
42-173-33956	PIONEER NATURAL RES. USA, INC.	Oil	41379
42-173-33957	Apache Corporation	Oil	41327
42-173-33958	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33959	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33960	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33961	Apache Corporation	Oil	42350
42-173-33962	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33963	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33964	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33965	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33966	LAREDO PETROLEUM, INC.	Oil	42132
42-173-33967	LAREDO PETROLEUM, INC.	Oil	41894
42-173-33968	PARSLEY ENERGY OPERATIONS, LLC	Oil	41363
42-173-33969	PARSLEY ENERGY OPERATIONS, LLC	Oil	41363
42-173-33970	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33971	PARSLEY ENERGY OPERATIONS, LLC	Oil	41363
42-173-33972	DIAMONDBACK E&P LLC	Oil	41443
42-173-33973	DIAMONDBACK E&P LLC	Oil	41443
42-173-33974	DIAMONDBACK E&P LLC	Oil	40391
42-173-33975	DIAMONDBACK E&P LLC	Oil	39953
42-173-33976	DIAMONDBACK E&P LLC	Oil	41395
42-173-33977	DIAMONDBACK E&P LLC	Oil	40495
42-173-33978	DIAMONDBACK E&P LLC	Oil	40495
42-173-33979	DIAMONDBACK E&P LLC	Oil	40495
42-173-33980	Apache Corporation	Oil	41103
42-173-33981	DIAMONDBACK E&P LLC	Oil	40495
42-173-33982	DIAMONDBACK E&P LLC	Oil	41657
42-173-33983	DIAMONDBACK E&P LLC	Oil	41657
42-173-33984	DIAMONDBACK E&P LLC	Oil	41657
42-173-33985	PIONEER NATURAL RES. USA, INC.	Oil	39503
42-173-33986	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33987	Apache Corporation	Oil	41346
42-173-33988	PIONEER NATURAL RES. USA, INC.	Oil	38686
42-173-33989	ENDEAVOR ENERGY RESOURCES L.P.
42-173-33990	NADEL AND GUSSMAN PERMIAN,L.L.C.	Oil	43587
42-173-33991	BAM PERMIAN OPERATING, LLC	Oil	42481
42-173-33992	Apache Corporation	Oil	41476
42-173-33993	OXY USA INC.	Oil	40806
42-173-33994	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33995	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-33996	PIONEER NATURAL RES. USA, INC.
42-173-33997	Apache Corporation	Oil	41214
42-173-33998	BAM PERMIAN OPERATING, LLC	Oil	42481
42-173-33999	LAREDO PETROLEUM, INC.	Oil	41603
42-173-34000	ROYALTY LAND & DEV. CO., INC.	Oil	39455
42-173-34001	LAREDO PETROLEUM, INC.	Oil	42351
42-173-34002	Apache Corporation	Oil	41576
42-173-34003	Apache Corporation	Oil	42912
42-173-34004	ENDEAVOR ENERGY RESOURCES L.P.	Oil	41148
42-173-34005	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34006	PIONEER NATURAL RES. USA, INC.	Oil	38121
42-173-34007	DIAMONDBACK E&P LLC	Oil	41953
42-173-34008	DIAMONDBACK E&P LLC	Oil	41953
42-173-34009	LAREDO PETROLEUM, INC.	Oil	41459
42-173-34010	EQT PRODUCTION TEXAS, LLC	Oil	43657
42-173-34011	ENDEAVOR ENERGY RESOURCES L.P.	Oil	26349
42-173-34012	STANOLIND PRODUCTION LLC	Oil	43657
42-173-34013	XTO ENERGY INC.
42-173-34014	LAREDO PETROLEUM, INC.	Oil	42351
42-173-34015	LAREDO PETROLEUM, INC.	Oil	40909
42-173-34016	PIONEER NATURAL RES. USA, INC.	Oil	41853
42-173-34017	LAREDO PETROLEUM, INC.	Oil	40054
42-173-34018	ENDEAVOR ENERGY RESOURCES L.P.	Oil	40837
42-173-34019	DIAMONDBACK E&P LLC	Oil	41807
42-173-34020	Apache Corporation	Oil	41380
42-173-34021	LAREDO PETROLEUM, INC.	Oil	41632
42-173-34022	Apache Corporation	Oil	40246
42-173-34023	LAREDO PETROLEUM, INC.	Oil	41632
42-173-34024	XTO ENERGY INC.	Oil	41536
42-173-34025	HANNATHON PETROLEUM, LLC
42-173-34026	Apache Corporation	Oil	41597
42-173-34027	DISCOVERY NATURAL RESOURCES LLC	Oil	40685
42-173-34028	COG OPERATING LLC	Oil	41832
42-173-34029	LAREDO PETROLEUM, INC.	Oil	43088
42-173-34030	LAREDO PETROLEUM, INC.	Oil	43071
42-173-34031	MCCLURE OIL COMPANY, INC.	Oil	39634
42-173-34032	MCCLURE OIL COMPANY, INC.	Oil	39634
42-173-34033	Apache Corporation	Oil	41410
42-173-34034	PIONEER NATURAL RES. USA, INC.	Oil	39194
42-173-34035	LAREDO PETROLEUM, INC.	Oil	41445
42-173-34036	MCCLURE OIL COMPANY, INC.
42-173-34037	LAREDO PETROLEUM, INC.	Oil	39872
42-173-34038	XTO ENERGY INC.	Oil	40898
42-173-34039	Apache Corporation	Oil	41778
42-173-34040	ENDEAVOR ENERGY RESOURCES L.P.	Oil	41947
42-173-34041	ENDEAVOR ENERGY RESOURCES L.P.	Oil	41473
42-173-34042	XTO ENERGY INC.	Oil	41099
42-173-34043	XTO ENERGY INC.	Oil	41983
42-173-34044	PIEDRA OPERATING, LLC
42-173-34045	CROWNQUEST OPERATING, LLC	Oil	41407
42-173-34046	COG OPERATING LLC
42-173-34047	COG OPERATING LLC	Oil	37789
42-173-34048	PIONEER NATURAL RES. USA, INC.	Oil	39951
42-173-34049	LAREDO PETROLEUM, INC.	Oil	41648
42-173-34050	PIONEER NATURAL RES. USA, INC.	Oil	38851
42-173-34051	LAREDO PETROLEUM, INC.	Oil	42537
42-173-34052	Apache Corporation	Oil	41078
42-173-34053	Apache Corporation	Oil	40143
42-173-34054	LAREDO PETROLEUM, INC.	Oil	41632
42-173-34055	DIAMONDBACK E&P LLC	Oil	40292
42-173-34056	DIAMONDBACK E&P LLC	Oil	41483
42-173-34057	DIAMONDBACK E&P LLC	Oil	41780
42-173-34058	ENDEAVOR ENERGY RESOURCES L.P.	Oil	42198
42-173-34059	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34060	Apache Corporation	Oil	41215
42-173-34061	Apache Corporation
42-173-34062	PIONEER NATURAL RES. USA, INC.	Oil	41859
42-173-34063	Apache Corporation	Oil	40904
42-173-34064	LAREDO PETROLEUM, INC.	Oil	40571
42-173-34065	Apache Corporation	Oil	40241
42-173-34066	Apache Corporation	Oil	41743
42-173-34067	LAREDO PETROLEUM, INC.	Oil	39051
42-173-34068	DIAMONDBACK E&P LLC	Oil	42691
42-173-34069	COG OPERATING LLC	Oil	46752
42-173-34070	LAREDO PETROLEUM, INC.	Oil	42044
42-173-34071	Apache Corporation	Oil	41380
42-173-34072	Apache Corporation	Oil	41869
42-173-34073	ENDEAVOR ENERGY RESOURCES L.P.	Oil	38356
42-173-34074	Apache Corporation	Oil	39614
42-173-34075	OXY USA INC.	Oil	42451
42-173-34076	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34077	Apache Corporation	Oil	39105
42-173-34078	Apache Corporation	Oil	39105
42-173-34079	Apache Corporation	Oil	41948
42-173-34080	PIONEER NATURAL RES. USA, INC.	Oil	40514
42-173-34081	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34082	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34083	Apache Corporation	Oil	40247
42-173-34084	LAREDO PETROLEUM, INC.	Oil	40907
42-173-34085	LAREDO PETROLEUM, INC.	Oil	41381
42-173-34086	Apache Corporation	Oil	40143
42-173-34087	TRILOGY OPERATING, INC.	Oil	49432
42-173-34088	TRILOGY OPERATING, INC.	Oil	43322
42-173-34089	LAREDO PETROLEUM, INC.	Oil	40907
42-173-34090	Apache Corporation	Oil	39972
42-173-34091	OVINTIV USA INC.	Oil	53608
42-173-34092	LAREDO PETROLEUM, INC.	Oil	41445
42-173-34093	Apache Corporation	Oil	44864
42-173-34094	Apache Corporation	Oil	39105
42-173-34095	Apache Corporation	Oil	39105
42-173-34096	TRILOGY OPERATING, INC.	Oil	49473
42-173-34097	TRILOGY OPERATING, INC.	Oil	49473
42-173-34098	PARSLEY ENERGY OPERATIONS, LLC	Oil	41500
42-173-34099	LAREDO PETROLEUM, INC.	Oil	40571
42-173-34100	Apache Corporation	Oil	39972
42-173-34101	Apache Corporation	Oil	39808
42-173-34102	OVINTIV USA INC.	Oil	53608
42-173-34103	LAREDO PETROLEUM, INC.	Oil	42531
42-173-34104	LAREDO PETROLEUM, INC.	Oil	40834
42-173-34105	LAREDO PETROLEUM, INC.	Oil	40834
42-173-34106	LAREDO PETROLEUM, INC.	Oil	40834
42-173-34107	OVINTIV USA INC.	Oil	53608
42-173-34108	LAREDO PETROLEUM, INC.	Oil	43840
42-173-34109	LAREDO PETROLEUM, INC.	Oil	41632
42-173-34110	Apache Corporation	Oil	41008
42-173-34111	Apache Corporation	Oil	41008
42-173-34112	OVINTIV USA INC.	Oil	41696
42-173-34113	PARSLEY ENERGY OPERATIONS, LLC	Oil	41415
42-173-34114	LAREDO PETROLEUM, INC.	Oil	41843
42-173-34115	MINERAL TECHNOLOGIES, INC.	Oil	42749
42-173-34116	MINERAL TECHNOLOGIES, INC.	Oil	44572
42-173-34117	LAREDO PETROLEUM, INC.	Oil	40834
42-173-34118
42-173-34119	DIAMONDBACK E&P LLC	Oil	40221
42-173-34120	DIAMONDBACK E&P LLC	Oil	40221
42-173-34121	OVINTIV USA INC.	Oil	41695
42-173-34122	Apache Corporation	Oil	41639
42-173-34123	DIAMONDBACK E&P LLC	Oil	43056
42-173-34124	DIAMONDBACK E&P LLC	Oil	43109
42-173-34125	DIAMONDBACK E&P LLC	Oil	40221
42-173-34126	Apache Corporation	Oil	44009
42-173-34127	Apache Corporation	Oil	40595
42-173-34128	DIAMONDBACK E&P LLC	Oil	40221
42-173-34129	DIAMONDBACK E&P LLC	Oil	40221
42-173-34130	Apache Corporation	Oil	41198
42-173-34131	LAREDO PETROLEUM, INC.	Oil	42645
42-173-34132	Apache Corporation	Oil	39808
42-173-34133	Apache Corporation	Oil	41708
42-173-34134	Apache Corporation	Oil	42036
42-173-34135	LAREDO PETROLEUM, INC.	Oil	41543
42-173-34136	Apache Corporation
42-173-34137	PIONEER NATURAL RES. USA, INC.
42-173-34138	DIAMONDBACK E&P LLC	Oil	40221
42-173-34139	DIAMONDBACK E&P LLC	Oil	42360
42-173-34140	DIAMONDBACK E&P LLC	Oil	41760
42-173-34141	DIAMONDBACK E&P LLC	Oil	41760
42-173-34142	Apache Corporation	Oil	39487
42-173-34143	Apache Corporation	Oil	40854
42-173-34144	Apache Corporation	Oil	41631
42-173-34145	DIAMONDBACK E&P LLC	Oil	41855
42-173-34146	OVINTIV USA INC.	Oil	39792
42-173-34147	DIAMONDBACK E&P LLC	Oil	41953
42-173-34148	DIAMONDBACK E&P LLC	Oil	41931
42-173-34149	DIAMONDBACK E&P LLC	Oil	42055
42-173-34150	DIAMONDBACK E&P LLC	Oil	41483
42-173-34151	DIAMONDBACK E&P LLC	Oil	42179
42-173-34152	DIAMONDBACK E&P LLC	Oil	42127
42-173-34153	DIAMONDBACK E&P LLC	Oil	40095
42-173-34154	Apache Corporation	Oil	41907
42-173-34155	Apache Corporation	Oil	41071
42-173-34156	DIAMONDBACK E&P LLC	Oil	42360
42-173-34157	DIAMONDBACK E&P LLC	Oil	42166
42-173-34158	DIAMONDBACK E&P LLC	Oil	42273
42-173-34159	DIAMONDBACK E&P LLC	Oil	40443
42-173-34160	DIAMONDBACK E&P LLC	Oil	42273
42-173-34161	DIAMONDBACK E&P LLC	Oil	40443
42-173-34162	LAREDO PETROLEUM, INC.	Oil	42970
42-173-34163	DIAMONDBACK E&P LLC	Oil	39953
42-173-34164	DIAMONDBACK E&P LLC	Oil	42342
42-173-34165	DIAMONDBACK E&P LLC	Oil	41931
42-173-34166	DIAMONDBACK E&P LLC	Oil	41855
42-173-34167	DIAMONDBACK E&P LLC	Oil	42055
42-173-34168	DIAMONDBACK E&P LLC	Oil	40292
42-173-34169	DIAMONDBACK E&P LLC	Oil	41657
42-173-34170	DIAMONDBACK E&P LLC	Oil	42511
42-173-34171	DIAMONDBACK E&P LLC	Oil	41591
42-173-34172	Apache Corporation	Oil	39487
42-173-34173	PIONEER NATURAL RES. USA, INC.	Oil	42352
42-173-34174	Apache Corporation	Oil	40145
42-173-34175	NADEL AND GUSSMAN PERMIAN,L.L.C.
42-173-34176	PARSLEY ENERGY OPERATIONS, LLC	Oil	42259
42-173-34177	Apache Corporation
42-173-34178	LAREDO PETROLEUM, INC.	Oil	40571
42-173-34179	LAREDO PETROLEUM, INC.
42-173-34180	OVINTIV USA INC.	Oil	41574
42-173-34181	Apache Corporation	Oil	39747
42-173-34182	LAREDO PETROLEUM, INC.	Oil	41632
42-173-34183	LAREDO PETROLEUM, INC.	Oil	40907
42-173-34184	Apache Corporation	Oil	42096
42-173-34185	PIONEER NATURAL RES. USA, INC.	Oil	40538
42-173-34186	LAREDO PETROLEUM, INC.	Oil	40133
42-173-34187	LAREDO PETROLEUM, INC.	Oil	42452
42-173-34188	PIONEER NATURAL RES. USA, INC.	Oil	41379
42-173-34189	LAREDO PETROLEUM, INC.	Oil	39049
42-173-34191	PIONEER NATURAL RES. USA, INC.	Oil	40538
42-173-34192	PIONEER NATURAL RES. USA, INC.	Oil	39571
42-173-34193	DE3 OPERATING LLC	Oil	41849
42-173-34194	DISCOVERY NATURAL RESOURCES LLC	Oil	41921
42-173-34195	MCCLURE OIL COMPANY, INC.	Oil	41449
42-173-34196	LAREDO PETROLEUM, INC.	Oil	42645
42-173-34197	OVINTIV USA INC.	Oil	22759
42-173-34198	MCCLURE OIL COMPANY, INC.	Oil	42139
42-173-34199	DIAMONDBACK E&P LLC	Oil	43257
42-173-34200	DIAMONDBACK E&P LLC	Oil	41496
42-173-34201	DIAMONDBACK E&P LLC	Oil	43221
42-173-34202	Apache Corporation	Oil	40247
42-173-34203	MAK-J ENERGY PARTNERS(TX),LTD.
42-173-34204	SOUTHWEST ROYALTIES, INC.	Oil	39363
42-173-34205	MAK-J ENERGY PARTNERS(TX),LTD.
42-173-34206	MAK-J ENERGY PARTNERS(TX),LTD.
42-173-34207	MAK-J ENERGY PARTNERS(TX),LTD.
42-173-34208
42-173-34209	LAREDO PETROLEUM, INC.	Oil	43179
42-173-34210	Apache Corporation	Oil	41810
42-173-34211	OVINTIV USA INC.	Oil	39167
42-173-34212	LAREDO PETROLEUM, INC.	Oil	42734
42-173-34213	LAREDO PETROLEUM, INC.	Oil	41436
42-173-34214	Apache Corporation	Oil	39972
42-173-34215	Apache Corporation	Oil	41755
42-173-34216	LAREDO PETROLEUM, INC.	Oil	39939
42-173-34217	PIONEER NATURAL RES. USA, INC.	Oil	42081
42-173-34218	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34219	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34220	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34221	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34222	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34223	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34224	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34225	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34226	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34227	SHERIDAN PRODUCTION COMPANY, LLC
42-173-34228	Apache Corporation	Oil	40014
42-173-34229	PIONEER NATURAL RES. USA, INC.	Oil	38851
42-173-34230	PIONEER NATURAL RES. USA, INC.	Oil	42546
42-173-34231	Apache Corporation	Oil	41380
42-173-34232	CROWNQUEST OPERATING, LLC	Oil	40966
42-173-34233	SHERIDAN PRODUCTION COMPANY, LLC
42-173-34234	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34235	FDL OPERATING, LLC	Oil	41062
42-173-34236	Apache Corporation	Oil	41078
42-173-34237	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34238	Apache Corporation	Oil	41869
42-173-34239	Apache Corporation	Oil	40246
42-173-34240	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34241	SHERIDAN PRODUCTION COMPANY, LLC
42-173-34242	LAREDO PETROLEUM, INC.	Oil	42821
42-173-34243	LAREDO PETROLEUM, INC.	Oil	40834
42-173-34244	Apache Corporation	Oil	39641
42-173-34245	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34246	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34247	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34248	DIAMONDBACK E&P LLC	Oil	42127
42-173-34249	DIAMONDBACK E&P LLC	Oil	41855
42-173-34250	Apache Corporation	Oil	40143
42-173-34251	Apache Corporation	Oil	40144
42-173-34252	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34253	LAREDO PETROLEUM, INC.	Oil	41632
42-173-34254	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34255	SHERIDAN PRODUCTION COMPANY, LLC
42-173-34256	LAREDO PETROLEUM, INC.	Oil	42928
42-173-34257	SHERIDAN PRODUCTION COMPANY, LLC
42-173-34258	ENDEAVOR ENERGY RESOURCES L.P.	Oil	43830
42-173-34259	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34260	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-34261	DIAMONDBACK E&P LLC	Oil	41625
42-173-34262	MINERAL TECHNOLOGIES, INC.	Oil	40824
42-173-34263	LAREDO PETROLEUM, INC.	Oil	41252
42-173-34264	XTO ENERGY INC.	Oil	38900
42-173-34265	XTO ENERGY INC.	Oil	42298
42-173-34266	XTO ENERGY INC.	Oil	42298
42-173-34267	XTO ENERGY INC.	Oil	38900
42-173-34268	XTO ENERGY INC.	Oil	38900
42-173-34269	COG OPERATING LLC	Oil	38162
42-173-34270	COG OPERATING LLC	Oil	37789
42-173-34271	XTO ENERGY INC.	Oil	39648
42-173-34272	XTO ENERGY INC.	Oil	41983
42-173-34273	XTO ENERGY INC.	Oil	42668
42-173-34274	PIONEER NATURAL RES. USA, INC.	Oil	41881
42-173-34275	Apache Corporation	Oil	39884
42-173-34276	MINERAL TECHNOLOGIES, INC.	Oil	41307
42-173-34277	MINERAL TECHNOLOGIES, INC.	Oil	44617
42-173-34278	MINERAL TECHNOLOGIES, INC.	Oil	44665
42-173-34279	Apache Corporation	Oil	39884
42-173-34280	Apache Corporation	Oil	40146
42-173-34281	DISCOVERY NATURAL RESOURCES LLC	Oil	40685
42-173-34282	Apache Corporation	Oil	41194
42-173-34283	DIAMONDBACK E&P LLC	Oil	42289
42-173-34284	LAREDO PETROLEUM, INC.	Oil	42074
42-173-34285	MCCLURE OIL COMPANY, INC.	Oil	41963
42-173-34286	Apache Corporation	Oil	39808
42-173-34287	Apache Corporation	Oil	39808
42-173-34288	PIONEER NATURAL RES. USA, INC.	Oil	39724
42-173-34289	Apache Corporation	Oil	40146
42-173-34290	Apache Corporation	Oil	40294
42-173-34291	LAREDO PETROLEUM, INC.	Oil	41769
42-173-34292	Apache Corporation	Oil	39884
42-173-34293	Apache Corporation	Oil	40143
42-173-34294	Apache Corporation	Oil	41326
42-173-34295	PIONEER NATURAL RES. USA, INC.	Oil	42524
42-173-34296	Apache Corporation	Oil	40475
42-173-34297	PIONEER NATURAL RES. USA, INC.	Oil	38121
42-173-34298	Apache Corporation	Oil	39557
42-173-34299	OVINTIV USA INC.	Oil	39617
42-173-34300	OVINTIV USA INC.	Oil	40873
42-173-34301	Apache Corporation	Oil	41639
42-173-34302	PIONEER NATURAL RES. USA, INC.	Oil	41946
42-173-34303	OVINTIV USA INC.	Oil	40958
42-173-34304	OVINTIV USA INC.	Oil	41731
42-173-34305	OVINTIV USA INC.	Oil	40949
42-173-34306	Apache Corporation	Oil	41597
42-173-34307	Apache Corporation	Oil	41918
42-173-34308	Apache Corporation	Oil	39487
42-173-34309	MINERAL TECHNOLOGIES, INC.	Oil	44526
42-173-34310	Apache Corporation	Oil	40854
42-173-34312	Apache Corporation	Oil	39641
42-173-34314	Apache Corporation	Oil	41597
42-173-34315	Apache Corporation	Oil	42182
42-173-34316	Apache Corporation	Oil	41327
42-173-34317	Apache Corporation	Oil	40146
42-173-34318	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-34319	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-34320	OXY USA INC.	Oil	42205
42-173-34321	Apache Corporation	Oil	39873
42-173-34322	Apache Corporation	Oil	42063
42-173-34323	Apache Corporation	Oil	40854
42-173-34324	Apache Corporation	Oil	40475
42-173-34325	Apache Corporation	Oil	39972
42-173-34326	Apache Corporation	Oil	39614
42-173-34327	PARSLEY ENERGY OPERATIONS, LLC	Oil	43094
42-173-34328	Apache Corporation	Oil	41078
42-173-34329	Apache Corporation	Oil	41194
42-173-34330	ENDEAVOR ENERGY RESOURCES L.P.	Oil	41947
42-173-34331	PIONEER NATURAL RES. USA, INC.	Oil	39092
42-173-34332	SOUTHWEST ROYALTIES, INC.	Oil	39363
42-173-34333	CHEVRON U. S. A. INC.	Oil	38949
42-173-34334	CHEVRON U. S. A. INC.	Oil	38949
42-173-34335	BAM PERMIAN OPERATING, LLC	Oil	44324
42-173-34336	Apache Corporation	Oil	39808
42-173-34337	MINERAL TECHNOLOGIES, INC.	Oil	44701
42-173-34338	Apache Corporation	Oil	39808
42-173-34339	MINERAL TECHNOLOGIES, INC.	Oil	44593
42-173-34340	Apache Corporation	Oil	41158
42-173-34341	Apache Corporation	Oil	39105
42-173-34342	LAREDO PETROLEUM, INC.	Oil	42867
42-173-34343	LAREDO PETROLEUM, INC.	Oil	42735
42-173-34344	Apache Corporation	Oil	40146
42-173-34345	BERRY OIL COMP.
42-173-34346	BAM PERMIAN OPERATING, LLC	Oil	44324
42-173-34347	Apache Corporation	Oil	40146
42-173-34348	BERRY OIL COMP.
42-173-34349	COG OPERATING LLC
42-173-34350	Apache Corporation	Oil	39487
42-173-34351	Apache Corporation	Oil	39487
42-173-34352	DIAMONDBACK E&P LLC	Oil	42691
42-173-34353	FED OPERATING LLC	Oil	41910
42-173-34354	PIEDRA OPERATING, LLC
42-173-34355	XTO ENERGY INC.	Oil	38900
42-173-34356	BERRY OIL COMP.
42-173-34357	BERRY OIL COMP.
42-173-34358	XTO ENERGY INC.	Oil	54435
42-173-34359	XTO ENERGY INC.	Oil	38900
42-173-34360	LAREDO PETROLEUM, INC.	Oil	40909
42-173-34361	PARSLEY ENERGY OPERATIONS, LLC	Oil	42824
42-173-34362	LAREDO PETROLEUM, INC.	Oil	41632
42-173-34363	MINERAL TECHNOLOGIES, INC.	Oil	43587
42-173-34364	MINERAL TECHNOLOGIES, INC.	Oil	41803
42-173-34365	Apache Corporation	Oil	42701
42-173-34366	LAREDO PETROLEUM, INC.	Oil	43088
42-173-34367	LAREDO PETROLEUM, INC.	Oil	42537
42-173-34368	LAREDO PETROLEUM, INC.	Oil	40020
42-173-34369	Apache Corporation	Oil	40210
42-173-34370	LAREDO PETROLEUM, INC.	Oil	40054
42-173-34371	XTO ENERGY INC.	Oil	38900
42-173-34372
42-173-34373	BERRY OIL COMP.
42-173-34374	BERRY OIL COMP.
42-173-34375	XTO ENERGY INC.	Oil	38900
42-173-34376	Apache Corporation	Oil	42018
42-173-34377	Apache Corporation	Oil	42018
42-173-34378	LAREDO PETROLEUM, INC.	Gas	270080
42-173-34379	LAREDO PETROLEUM, INC.	Oil	40834
42-173-34380	XTO ENERGY INC.	Oil	32273
42-173-34381	ENERGEN RESOURCES CORPORATION	Oil	44017
42-173-34382	MAK-J ENERGY PARTNERS(TX),LTD.
42-173-34383	COG OPERATING LLC	Oil	42102
42-173-34384	PARSLEY ENERGY OPERATIONS, LLC	Oil	42259
42-173-34385	ROYALTY LAND & DEV. CO., INC.	Oil	39455
42-173-34386	CROWNQUEST OPERATING, LLC	Oil	42443
42-173-34387	Apache Corporation	Oil	40143
42-173-34388	PARSLEY ENERGY OPERATIONS, LLC	Oil	41500
42-173-34389	PARSLEY ENERGY OPERATIONS, LLC	Oil	43030
42-173-34390	PARSLEY ENERGY OPERATIONS, LLC	Oil	41415
42-173-34391	Apache Corporation	Oil	41194
42-173-34392	OVINTIV USA INC.	Oil	42808
42-173-34393	Apache Corporation	Oil	41194
42-173-34394	OVINTIV USA INC.	Oil	40873
42-173-34395	Apache Corporation
42-173-34396	LAREDO PETROLEUM, INC.	Oil	41973
42-173-34397	Apache Corporation	Oil	40475
42-173-34398	Apache Corporation	Oil	39884
42-173-34399	Apache Corporation	Oil	39255
42-173-34400	Apache Corporation	Oil	39884
42-173-34401	PIONEER NATURAL RES. USA, INC.	Oil	42794
42-173-34402	PIONEER NATURAL RES. USA, INC.
42-173-34403	OVINTIV USA INC.	Oil	42202
42-173-34404	LAREDO PETROLEUM, INC.	Oil	39332
42-173-34405	OVINTIV USA INC.	Oil	42202
42-173-34406	OVINTIV USA INC.	Oil	42202
42-173-34407	PIEDRA OPERATING, LLC
42-173-34408	LAREDO PETROLEUM, INC.	Oil	41648
42-173-34409	Apache Corporation	Oil	41230
42-173-34410	LAREDO PETROLEUM, INC.	Oil	41769
42-173-34411	Apache Corporation	Oil	41913
42-173-34412	Apache Corporation	Oil	39105
42-173-34413	Apache Corporation	Oil	41951
42-173-34414	EQT PRODUCTION TEXAS, LLC	Oil	43657
42-173-34415	PIONEER NATURAL RES. USA, INC.	Oil	38472
42-173-34416	PIONEER NATURAL RES. USA, INC.	Oil	38851
42-173-34417	PIONEER NATURAL RES. USA, INC.	Oil	39145
42-173-34418	LAREDO PETROLEUM, INC.	Oil	43784
42-173-34419	PIONEER NATURAL RES. USA, INC.	Oil	41853
42-173-34420	LAREDO PETROLEUM, INC.	Oil	43586
42-173-34421	PIONEER NATURAL RES. USA, INC.	Oil	39503
42-173-34422	Apache Corporation	Oil	40146
42-173-34423	MCCLURE OIL COMPANY, INC.	Oil	41449
42-173-34424	LAREDO PETROLEUM, INC.	Oil	40571
42-173-34425	Apache Corporation	Oil	39105
42-173-34426	OXY USA INC.	Oil	50104
42-173-34427	LAREDO PETROLEUM, INC.	Oil	42890
42-173-34428	LAREDO PETROLEUM, INC.	Oil	42872
42-173-34429	LAREDO PETROLEUM, INC.	Oil	41543
42-173-34430	DIAMONDBACK E&P LLC	Oil	42511
42-173-34431	DIAMONDBACK E&P LLC	Oil	41591
42-173-34432	DIAMONDBACK E&P LLC	Oil	41483
42-173-34433	DIAMONDBACK E&P LLC	Oil	41657
42-173-34434	DIAMONDBACK E&P LLC	Oil	41483
42-173-34435	DIAMONDBACK E&P LLC	Oil	40292
42-173-34436	DIAMONDBACK E&P LLC	Oil	39953
42-173-34437	DIAMONDBACK E&P LLC	Oil	42342
42-173-34438	DIAMONDBACK E&P LLC	Oil	42592
42-173-34439	DIAMONDBACK E&P LLC	Oil	42456
42-173-34440	DIAMONDBACK E&P LLC	Oil	42165
42-173-34441	DIAMONDBACK E&P LLC	Oil	42248
42-173-34442	Apache Corporation	Oil	40926
42-173-34443	Apache Corporation	Oil	39808
42-173-34444	TRILOGY OPERATING, INC.	Oil	42733
42-173-34445	MCCLURE OIL COMPANY, INC.	Oil	41449
42-173-34446	MCCLURE OIL COMPANY, INC.	Oil	41963
42-173-34447	MCCLURE OIL COMPANY, INC.	Oil	41963
42-173-34448	LAREDO PETROLEUM, INC.	Oil	41381
42-173-34449	Apache Corporation	Oil	41326
42-173-34450	Apache Corporation	Oil	39557
42-173-34451	Apache Corporation	Oil	39747
42-173-34452	LAREDO PETROLEUM, INC.	Oil	39939
42-173-34453	DIAMONDBACK E&P LLC	Oil	42248
42-173-34454	OVINTIV USA INC.	Oil	41622
42-173-34455	DIAMONDBACK E&P LLC	Oil	42501
42-173-34456	Apache Corporation	Oil	40143
42-173-34457	OVINTIV USA INC.	Oil	42359
42-173-34458	DIAMONDBACK E&P LLC	Oil	42775
42-173-34459	DIAMONDBACK E&P LLC	Oil	42456
42-173-34460	LAREDO PETROLEUM, INC.	Oil	40571
42-173-34461	Apache Corporation	Oil	39641
42-173-34462	PIONEER NATURAL RES. USA, INC.	Oil	39951
42-173-34463	LAREDO PETROLEUM, INC.	Oil	39872
42-173-34464	DIAMONDBACK E&P LLC	Oil	40292
42-173-34465	PIONEER NATURAL RES. USA, INC.	Oil	42638
42-173-34466	PIONEER NATURAL RES. USA, INC.	Oil	41859
42-173-34467	PIONEER NATURAL RES. USA, INC.	Oil	42599
42-173-34468
42-173-34469	Apache Corporation	Oil	41071
42-173-34470	DISCOVERY NATURAL RESOURCES LLC	Oil	42065
42-173-34471	CHEVRON U. S. A. INC.	Oil	37012
42-173-34472	Apache Corporation	Oil	40051
42-173-34473	Apache Corporation	Oil	42566
42-173-34474	LAREDO PETROLEUM, INC.	Oil	49971
42-173-34475	LAREDO PETROLEUM, INC.	Oil	52535
42-173-34476	Apache Corporation	Oil	40144
42-173-34477	Apache Corporation	Oil	40475
42-173-34478	Apache Corporation	Oil	41326
42-173-34479	Apache Corporation	Oil	41326
42-173-34480	LAREDO PETROLEUM, INC.
42-173-34481	Apache Corporation	Oil	41071
42-173-34482	Apache Corporation	Oil	42657
42-173-34483	Apache Corporation	Oil	40243
42-173-34484	PIONEER NATURAL RES. USA, INC.	Oil	39092
42-173-34485	PIONEER NATURAL RES. USA, INC.	Oil	39034
42-173-34486	PIONEER NATURAL RES. USA, INC.	Oil	42717
42-173-34487	Apache Corporation	Oil	44437
42-173-34488	PIONEER NATURAL RES. USA, INC.	Oil	38224
42-173-34489	LAREDO PETROLEUM, INC.	Oil	43199
42-173-34490	LAREDO PETROLEUM, INC.	Oil	41445
42-173-34491	LAREDO PETROLEUM, INC.	Oil	41436
42-173-34492	LAREDO PETROLEUM, INC.	Oil	40054
42-173-34493	LAREDO PETROLEUM, INC.	Oil	42970
42-173-34494	PIONEER NATURAL RES. USA, INC.	Oil	42640
42-173-34495	PIONEER NATURAL RES. USA, INC.	Oil	42646
42-173-34496	PIONEER NATURAL RES. USA, INC.
42-173-34497	Apache Corporation	Oil	42201
42-173-34498	Apache Corporation	Oil	40854
42-173-34499	LAREDO PETROLEUM, INC.	Oil	42626
42-173-34500	LAREDO PETROLEUM, INC.
42-173-34501	DIAMONDBACK E&P LLC	Oil	42691
42-173-34502	DIAMONDBACK E&P LLC	Oil	39445
42-173-34503	DIAMONDBACK E&P LLC	Oil	42512
42-173-34504	Apache Corporation	Oil	39614
42-173-34505	Apache Corporation	Oil	43511
42-173-34506	Apache Corporation	Oil	40475
42-173-34507	LAREDO PETROLEUM, INC.	Oil	41732
42-173-34508	LAREDO PETROLEUM, INC.	Oil	41252
42-173-34509	DIAMONDBACK E&P LLC	Oil	44017
42-173-34510	ENERGEN RESOURCES CORPORATION	Oil	40277
42-173-34511	Apache Corporation	Oil	41948
42-173-34512	Apache Corporation	Oil	42590
42-173-34513	ENERGEN RESOURCES CORPORATION	Oil	40277
42-173-34514	ELEPHANT OIL & GAS, LLC
42-173-34515	ELEPHANT OIL & GAS, LLC
42-173-34516	Apache Corporation	Oil	40143
42-173-34517	Apache Corporation	Oil	41380
42-173-34518	Apache Corporation	Oil	42587
42-173-34519	DE3 OPERATING LLC	Oil	41849
42-173-34520	CROWNQUEST OPERATING, LLC	Oil	40686
42-173-34521	Apache Corporation	Oil	40247
42-173-34522	Apache Corporation	Oil	40146
42-173-34523	NADEL AND GUSSMAN PERMIAN,L.L.C.
42-173-34524	Apache Corporation	Oil	40247
42-173-34525	PIONEER NATURAL RES. USA, INC.	Oil	42780
42-173-34526	Apache Corporation	Oil	40247
42-173-34527	LAREDO PETROLEUM, INC.	Oil	40571
42-173-34528	Apache Corporation	Oil	40014
42-173-34529	Apache Corporation	Oil	40595
42-173-34530	DIAMONDBACK E&P LLC	Oil	39953
42-173-34531	Apache Corporation	Oil	42701
42-173-34532	DIAMONDBACK E&P LLC	Oil	40495
42-173-34533	DIAMONDBACK E&P LLC	Oil	41443
42-173-34534	Apache Corporation	Oil	39972
42-173-34535	Apache Corporation	Oil	39972
42-173-34536	LAREDO PETROLEUM, INC.	Oil	41494
42-173-34537	COG OPERATING LLC	Oil	37789
42-173-34538	COG OPERATING LLC	Oil	38162
42-173-34539	Apache Corporation	Oil	39808
42-173-34540	Apache Corporation	Oil	39105
42-173-34541	LAREDO PETROLEUM, INC.	Oil	40284
42-173-34542	PARSLEY ENERGY OPERATIONS, LLC	Oil	41500
42-173-34543	NADEL AND GUSSMAN PERMIAN,L.L.C.
42-173-34544	LAREDO PETROLEUM, INC.	Oil	40284
42-173-34545	Apache Corporation	Oil	40478
42-173-34546	Apache Corporation	Oil	43312
42-173-34547	Apache Corporation	Oil	41158
42-173-34548	PARSLEY ENERGY OPERATIONS, LLC	Oil	41500
42-173-34549	PIONEER NATURAL RES. USA, INC.	Oil	44133
42-173-34550	PIONEER NATURAL RES. USA, INC.	Oil	42606
42-173-34551	PIONEER NATURAL RES. USA, INC.	Oil	42595
42-173-34552	LAREDO PETROLEUM, INC.	Oil	43281
42-173-34553	LAREDO PETROLEUM, INC.	Oil	41543
42-173-34554	MINERAL TECHNOLOGIES, INC.	Oil	41749
42-173-34555	MCCLURE OIL COMPANY, INC.	Oil	43165
42-173-34556	OVINTIV USA INC.	Oil	40958
42-173-34557	Apache Corporation	Oil	39105
42-173-34558	Apache Corporation	Oil	39105
42-173-34559	Apache Corporation	Oil	39105
42-173-34560	Apache Corporation	Oil	39105
42-173-34561	Apache Corporation	Oil	40475
42-173-34562	THREE RIVERS OPERATING CO LLC
42-173-34563	THREE RIVERS OPERATING CO LLC
42-173-34564	Apache Corporation	Oil	40243
42-173-34565	Apache Corporation	Oil	40243
42-173-34566	Apache Corporation	Oil	42602
42-173-34567	DIAMONDBACK E&P LLC	Oil	27874
42-173-34568	Apache Corporation	Oil	40243
42-173-34569	DIAMONDBACK E&P LLC	Oil	27874
42-173-34570	Apache Corporation	Oil	45960
42-173-34571	Apache Corporation	Oil	39873
42-173-34572	Apache Corporation	Oil	39874
42-173-34573	Apache Corporation	Oil	42182
42-173-34574	OVINTIV USA INC.	Oil	39792
42-173-34575	Apache Corporation	Oil	40014
42-173-34576	Apache Corporation	Oil	40854
42-173-34577	PIEDRA OPERATING, LLC
42-173-34578	PIEDRA OPERATING, LLC
42-173-34579	Apache Corporation	Oil	39873
42-173-34580	COG OPERATING LLC	Oil	41205
42-173-34581	Apache Corporation	Oil	41869
42-173-34582	LAREDO PETROLEUM, INC.	Oil	40153
42-173-34583	LAREDO PETROLEUM, INC.	Oil	40175
42-173-34584	PIONEER NATURAL RES. USA, INC.	Oil	40860
42-173-34585	PIONEER NATURAL RES. USA, INC.	Oil	42717
42-173-34586	PIONEER NATURAL RES. USA, INC.	Oil	42578
42-173-34587	PIONEER NATURAL RES. USA, INC.
42-173-34588	PIONEER NATURAL RES. USA, INC.	Oil	43037
42-173-34589	MCCLURE OIL COMPANY, INC.	Oil	42139
42-173-34590	Apache Corporation	Oil	40475
42-173-34591	Apache Corporation	Oil	39557
42-173-34592	Apache Corporation	Oil	39557
42-173-34593	Apache Corporation	Oil	39557
42-173-34594	Apache Corporation	Oil	39614
42-173-34595	Apache Corporation	Oil	44199
42-173-34596	Apache Corporation	Oil	40475
42-173-34597	Apache Corporation	Oil	39105
42-173-34598	PIONEER NATURAL RES. USA, INC.	Oil	39512
42-173-34599	Apache Corporation	Oil	39105
42-173-34600	Apache Corporation	Oil	39105
42-173-34601	Apache Corporation	Oil	39105
42-173-34602	Apache Corporation	Oil	40475
42-173-34603	Apache Corporation	Oil	39614
42-173-34604	PIONEER NATURAL RES. USA, INC.	Oil	39034
42-173-34605	XTO ENERGY INC.	Oil	41786
42-173-34606	Apache Corporation	Oil	44863
42-173-34607	Apache Corporation	Oil	44863
42-173-34608	Apache Corporation	Oil	40144
42-173-34609	Apache Corporation	Oil	39487
42-173-34611	Apache Corporation	Oil	43497
42-173-34612	XTO ENERGY INC.	Oil	38901
42-173-34613	LAREDO PETROLEUM, INC.	Oil	42890
42-173-34614	LAREDO PETROLEUM, INC.	Oil	43430
42-173-34615	Apache Corporation	Oil	39747
42-173-34616	Apache Corporation	Oil	40051
42-173-34617	Apache Corporation	Oil	39874
42-173-34618	Apache Corporation	Oil	39641
42-173-34619	ROYALTY LAND & DEV. CO., INC.	Oil	39455
42-173-34620	ROYALTY LAND & DEV. CO., INC.	Oil	39455
42-173-34621	OVINTIV USA INC.	Oil	39167
42-173-34622	LAREDO PETROLEUM, INC.	Oil	42626
42-173-34623	OVINTIV USA INC.	Oil	42808
42-173-34624	PARSLEY ENERGY OPERATIONS, LLC	Oil	41415
42-173-34625	OVINTIV USA INC.	Oil	42535
42-173-34626	Apache Corporation	Oil	39808
42-173-34627	ROYALTY LAND & DEV. CO., INC.	Oil	43096
42-173-34628	DIAMONDBACK E&P LLC	Oil	40391
42-173-34629	DIAMONDBACK E&P LLC	Oil	42342
42-173-34630	DIAMONDBACK E&P LLC	Oil	41443
42-173-34631	DIAMONDBACK E&P LLC	Oil	41855
42-173-34632	DIAMONDBACK E&P LLC	Oil	41931
42-173-34633	DIAMONDBACK E&P LLC	Oil	40095
42-173-34634	DIAMONDBACK E&P LLC	Oil	41657
42-173-34635	DIAMONDBACK E&P LLC	Oil	41483
42-173-34636	DIAMONDBACK E&P LLC	Oil	43150
42-173-34637	MCCLURE OIL COMPANY, INC.
42-173-34638	DIAMONDBACK E&P LLC	Oil	41780
42-173-34639	Apache Corporation	Oil	39808
42-173-34640	LAREDO PETROLEUM, INC.	Oil	39049
42-173-34641	Apache Corporation	Oil	39972
42-173-34642	PARSLEY ENERGY OPERATIONS, LLC	Oil	42678
42-173-34643	DIAMONDBACK E&P LLC	Oil	42127
42-173-34644	Apache Corporation	Oil	39972
42-173-34645	XTO ENERGY INC.	Oil	38900
42-173-34646	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-34647	OXY USA INC.	Oil	42763
42-173-34648	Apache Corporation	Oil	41597
42-173-34649	LAREDO PETROLEUM, INC.	Oil	40019
42-173-34650	DIAMONDBACK E&P LLC	Oil	41625
42-173-34651	ENDEAVOR ENERGY RESOURCES L.P.	Oil	41473
42-173-34652	LAREDO PETROLEUM, INC.	Oil	40054
42-173-34653	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-34654	OVINTIV USA INC.	Oil	41731
42-173-34655	PIONEER NATURAL RES. USA, INC.	Oil	39405
42-173-34656	PIONEER NATURAL RES. USA, INC.	Oil	39194
42-173-34657	PIONEER NATURAL RES. USA, INC.	Oil	38520
42-173-34658	OVINTIV USA INC.	Oil	39792
42-173-34659
42-173-34660	SMC OIL & GAS, INC.	Oil	43400
42-173-34661	Apache Corporation	Oil	41008
42-173-34662	OXY USA INC.	Oil	43611
42-173-34663	OXY USA INC.	Oil	42648
42-173-34664	Apache Corporation	Oil	41707
42-173-34665	LAREDO PETROLEUM, INC.	Oil	43380
42-173-34666	XTO ENERGY INC.	Oil	38901
42-173-34667	BERRY OIL COMP.
42-173-34668	LAREDO PETROLEUM, INC.	Oil	41603
42-173-34669	BERRY OIL COMP.
42-173-34670	BERRY OIL COMP.
42-173-34671	BERRY OIL COMP.
42-173-34672	BERRY OIL COMP.
42-173-34673	XTO ENERGY INC.	Oil	39750
42-173-34674	DISCOVERY NATURAL RESOURCES LLC	Oil	42828
42-173-34675	XTO ENERGY INC.	Oil	41352
42-173-34676	DIAMONDBACK E&P LLC	Oil	40292
42-173-34677	DIAMONDBACK E&P LLC	Oil	41657
42-173-34678	DISCOVERY NATURAL RESOURCES LLC	Oil	41675
42-173-34679	ROYALTY LAND & DEV. CO., INC.	Oil	39455
42-173-34680	ROYALTY LAND & DEV. CO., INC.	Oil	39455
42-173-34681	DIAMONDBACK E&P LLC	Oil	43460
42-173-34682	LAREDO PETROLEUM, INC.	Oil	40054
42-173-34683	DIAMONDBACK E&P LLC	Oil	41625
42-173-34684	DISCOVERY NATURAL RESOURCES LLC	Oil	41921
42-173-34685	Apache Corporation	Oil	40816
42-173-34686	Apache Corporation	Oil	41913
42-173-34687	LAREDO PETROLEUM, INC.	Oil	39243
42-173-34688	LAREDO PETROLEUM, INC.	Oil	42821
42-173-34689	DIAMONDBACK E&P LLC	Oil	43109
42-173-34690	LAREDO PETROLEUM, INC.	Oil	42821
42-173-34691	LAREDO PETROLEUM, INC.	Oil	42821
42-173-34692	LAREDO PETROLEUM, INC.	Oil	40909
42-173-34693	LAREDO PETROLEUM, INC.	Oil	40133
42-173-34694	LAREDO PETROLEUM, INC.	Oil	42821
42-173-34695	LAREDO PETROLEUM, INC.	Oil	42579
42-173-34696	COG OPERATING LLC	Oil	42102
42-173-34697	OVINTIV USA INC.	Oil	41622
42-173-34698	LAREDO PETROLEUM, INC.	Oil	40834
42-173-34699	LAREDO PETROLEUM, INC.	Oil	40834
42-173-34700	SMC OIL & GAS, INC.	Oil	43430
42-173-34701	SMC OIL & GAS, INC.	Oil	43400
42-173-34702	LAREDO PETROLEUM, INC.	Oil	42934
42-173-34703	LAREDO PETROLEUM, INC.	Oil	40571
42-173-34704	PIONEER NATURAL RES. USA, INC.	Oil	43037
42-173-34705	EQT PRODUCTION TEXAS, LLC	Oil	43657
42-173-34706	PETROPLEX ENERGY INC.	Gas	273205
42-173-34707	PIONEER NATURAL RES. USA, INC.	Oil	40971
42-173-34708	LAREDO PETROLEUM, INC.	Oil	43418
42-173-34709	BERRY OIL COMP.
42-173-34710	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-34711	XTO ENERGY INC.	Oil	40823
42-173-34712	LAREDO PETROLEUM, INC.	Oil	52535
42-173-34713	XTO ENERGY INC.	Oil	38900
42-173-34714	XTO ENERGY INC.	Oil	38900
42-173-34715	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-34716	XTO ENERGY INC.	Oil	38900
42-173-34717	MCCLURE OIL COMPANY, INC.	Oil	43601
42-173-34718	XTO ENERGY INC.	Oil	41786
42-173-34719	BERRY OIL COMP.
42-173-34720	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-34721	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-34722	Apache Corporation	Oil	42969
42-173-34723	Apache Corporation	Oil	39557
42-173-34724	Apache Corporation	Oil	43212
42-173-34725	FIML NATURAL RESOURCES, LLC
42-173-34726	Apache Corporation	Oil	40051
42-173-34727	Apache Corporation	Oil	40247
42-173-34728	Apache Corporation	Oil	42182
42-173-34729	Apache Corporation	Oil	40143
42-173-34730	Apache Corporation	Oil	39972
42-173-34731	Apache Corporation	Oil	42936
42-173-34732	Apache Corporation	Oil	39972
42-173-34733	Apache Corporation	Oil	41194
42-173-34734	Apache Corporation	Oil	40241
42-173-34735	Apache Corporation	Oil	43363
42-173-34736	Apache Corporation	Oil	40143
42-173-34737	OVINTIV USA INC.	Oil	40873
42-173-34738	PARSLEY ENERGY OPERATIONS, LLC	Oil	40166
42-173-34739	PARSLEY ENERGY OPERATIONS, LLC	Oil	42957
42-173-34740	TRILOGY OPERATING, INC.	Oil	43510
42-173-34741	RP OPERATING, L.L.C.	Oil	43694
42-173-34742	LAREDO PETROLEUM, INC.	Oil	43199
42-173-34743	PIONEER NATURAL RES. USA, INC.
42-173-34744	LAREDO PETROLEUM, INC.	Oil	43436
42-173-34745	LAREDO PETROLEUM, INC.	Oil	51410
42-173-34746	LAREDO PETROLEUM, INC.	Oil	43467
42-173-34747	LAREDO PETROLEUM, INC.	Oil	43470
42-173-34748	LAREDO PETROLEUM, INC.	Oil	42527
42-173-34749	LAREDO PETROLEUM, INC.	Oil	42890
42-173-34750	LAREDO PETROLEUM, INC.	Oil	43463
42-173-34751	PIONEER NATURAL RES. USA, INC.	Oil	40529
42-173-34752	LAREDO PETROLEUM, INC.
42-173-34753	LAREDO PETROLEUM, INC.	Oil	43383
42-173-34754	OXY USA INC.	Oil	40806
42-173-34755	LAREDO PETROLEUM, INC.	Oil	42132
42-173-34756	LAREDO PETROLEUM, INC.	Oil	40054
42-173-34757	MCCLURE OIL COMPANY, INC.	Oil	41449
42-173-34758	MCCLURE OIL COMPANY, INC.	Oil	41449
42-173-34759	OVINTIV USA INC.	Oil	40958
42-173-34761	DIAMONDBACK E&P LLC	Oil	41625
42-173-34762	DIAMONDBACK E&P LLC	Oil	41625
42-173-34763	DIAMONDBACK E&P LLC	Oil	41625
42-173-34764	BURLESON PETROLEUM, INC.	Oil	42745
42-173-34765	PIONEER NATURAL RES. USA, INC.	Oil	06391
42-173-34766	LAREDO PETROLEUM, INC.	Oil	41976
42-173-34767	LAREDO PETROLEUM, INC.	Oil	41436
42-173-34768	COG OPERATING LLC	Oil	42865
42-173-34769	OVINTIV USA INC.	Oil	42359
42-173-34770	NADEL AND GUSSMAN PERMIAN,L.L.C.	Oil	45552
42-173-34771	NADEL AND GUSSMAN PERMIAN,L.L.C.
42-173-34772	MINERAL TECHNOLOGIES, INC.	Oil	40824
42-173-34773	Apache Corporation	Oil	43312
42-173-34774	DISCOVERY NATURAL RESOURCES LLC	Oil	42828
42-173-34775	Apache Corporation	Oil	40294
42-173-34776	DIAMONDBACK E&P LLC	Oil	42179
42-173-34777	DIAMONDBACK E&P LLC	Oil	42165
42-173-34778	DIAMONDBACK E&P LLC	Oil	40391
42-173-34779	Apache Corporation
42-173-34780	DIAMONDBACK E&P LLC	Oil	40495
42-173-34781	DIAMONDBACK E&P LLC	Oil	40572
42-173-34782	DIAMONDBACK E&P LLC	Oil	41657
42-173-34783	DIAMONDBACK E&P LLC	Oil	42055
42-173-34784	DIAMONDBACK E&P LLC	Oil	40292
42-173-34785	DIAMONDBACK E&P LLC	Oil	43627
42-173-34786	DIAMONDBACK E&P LLC	Oil	43004
42-173-34787	DIAMONDBACK E&P LLC	Oil	40292
42-173-34788	DIAMONDBACK E&P LLC	Oil	40095
42-173-34789	DIAMONDBACK E&P LLC	Oil	41591
42-173-34790	DIAMONDBACK E&P LLC	Oil	42127
42-173-34791	DIAMONDBACK E&P LLC	Oil	41483
42-173-34792	LAREDO PETROLEUM, INC.	Oil	41252
42-173-34793	Apache Corporation	Oil	42969
42-173-34794	OVINTIV USA INC.	Oil	40949
42-173-34795	CROWNQUEST OPERATING, LLC	Oil	43105
42-173-34796	BLUESTEM ENERGY HOLDINGS, LLC
42-173-34797	DIAMONDBACK E&P LLC	Oil	43318
42-173-34798	DIAMONDBACK E&P LLC	Oil	43318
42-173-34799	DIAMONDBACK E&P LLC	Oil	43317
42-173-34800	DIAMONDBACK E&P LLC	Oil	43318
42-173-34801	DIAMONDBACK E&P LLC	Oil	43318
42-173-34802	Apache Corporation	Oil	39557
42-173-34803	LAREDO PETROLEUM, INC.	Oil	41494
42-173-34804	LAREDO PETROLEUM, INC.	Oil	43837
42-173-34805	DIAMONDBACK E&P LLC	Oil	40495
42-173-34806	LAREDO PETROLEUM, INC.	Oil	42934
42-173-34807	Apache Corporation	Oil	43107
42-173-34808	LAREDO PETROLEUM, INC.	Oil	43426
42-173-34809	DIAMONDBACK E&P LLC	Oil	42289
42-173-34810	Apache Corporation	Oil	40247
42-173-34811	DIAMONDBACK E&P LLC	Oil	41953
42-173-34812
42-173-34813
42-173-34814	DIAMONDBACK E&P LLC	Oil	41953
42-173-34815	DIAMONDBACK E&P LLC	Oil	41953
42-173-34816	BLUESTEM ENERGY HOLDINGS, LLC
42-173-34817	DIAMONDBACK E&P LLC	Oil	43318
42-173-34818	DIAMONDBACK E&P LLC	Oil	43056
42-173-34819	ENDEAVOR ENERGY RESOURCES L.P.	Oil	41947
42-173-34820	LAREDO PETROLEUM, INC.	Oil	43199
42-173-34821	DIAMONDBACK E&P LLC	Oil	42512
42-173-34822	DIAMONDBACK E&P LLC	Oil	43257
42-173-34823	Apache Corporation	Oil	39105
42-173-34824	OVINTIV USA INC.	Oil	38400
42-173-34825	OVINTIV USA INC.	Oil	40873
42-173-34826	MCCLURE OIL COMPANY, INC.	Oil	41378
42-173-34827	OVINTIV USA INC.	Oil	39167
42-173-34828	LAREDO PETROLEUM, INC.	Oil	42645
42-173-34829	MCCLURE OIL COMPANY, INC.	Oil	41449
42-173-34830	MCCLURE OIL COMPANY, INC.	Oil	41449
42-173-34831	Apache Corporation	Oil	43333
42-173-34832	Apache Corporation	Oil	40145
42-173-34833	PIONEER NATURAL RES. USA, INC.	Oil	40538
42-173-34834	COG OPERATING LLC	Oil	38162
42-173-34835	DIAMONDBACK E&P LLC	Oil	41496
42-173-34836	MCCLURE OIL COMPANY, INC.	Oil	43170
42-173-34837	COG OPERATING LLC	Oil	37789
42-173-34838	MINERAL TECHNOLOGIES, INC.	Oil	44701
42-173-34839	Apache Corporation	Oil	40246
42-173-34840	LAREDO PETROLEUM, INC.	Oil	41543
42-173-34841	Apache Corporation	Oil	39557
42-173-34842	Apache Corporation	Oil	42602
42-173-34843	Apache Corporation	Oil	39808
42-173-34844	Apache Corporation	Oil	41380
42-173-34845	PIONEER NATURAL RES. USA, INC.	Oil	41379
42-173-34846	DIAMONDBACK E&P LLC	Oil	43056
42-173-34847	DIAMONDBACK E&P LLC	Oil	43056
42-173-34848	PIONEER NATURAL RES. USA, INC.	Oil	43037
42-173-34849	Apache Corporation	Oil	41078
42-173-34850	OVINTIV USA INC.	Oil	39792
42-173-34851	XTO ENERGY INC.	Oil	41871
42-173-34852	Apache Corporation	Oil	41778
42-173-34853	Apache Corporation	Oil	39972
42-173-34854	MCCLURE OIL COMPANY, INC.	Oil	43165
42-173-34855	Apache Corporation	Oil	43455
42-173-34856	Apache Corporation	Oil	39105
42-173-34857	Wichita Water Llc	Oil	42185
42-173-34858	MCCLURE OIL COMPANY, INC.
42-173-34859	LAREDO PETROLEUM, INC.	Oil	41445
42-173-34860	LAREDO PETROLEUM, INC.	Oil	39051
42-173-34861	LAREDO PETROLEUM, INC.	Oil	43142
42-173-34862	PIONEER NATURAL RES. USA, INC.	Oil	42717
42-173-34863	Apache Corporation	Oil	39105
42-173-34864	DIAMONDBACK E&P LLC	Oil	42501
42-173-34865	Apache Corporation	Oil	44199
42-173-34866	LAREDO PETROLEUM, INC.	Oil	43425
42-173-34867	Apache Corporation	Oil	41194
42-173-34868	OVINTIV USA INC.	Oil	42862
42-173-34869	Apache Corporation	Oil	41194
42-173-34870	Apache Corporation	Oil	40926
42-173-34871	Apache Corporation	Oil	39641
42-173-34872	Apache Corporation	Oil	41597
42-173-34873	Apache Corporation	Oil	40051
42-173-34874	Apache Corporation	Oil	43125
42-173-34875	Apache Corporation	Oil	40145
42-173-34876	Apache Corporation	Oil	43125
42-173-34877	PIONEER NATURAL RES. USA, INC.
42-173-34878	PIONEER NATURAL RES. USA, INC.	Oil	42081
42-173-34879	PIONEER NATURAL RES. USA, INC.	Oil	39973
42-173-34880	PIONEER NATURAL RES. USA, INC.	Oil	40671
42-173-34881	Apache Corporation	Oil	41230
42-173-34882	MINERAL TECHNOLOGIES, INC.	Oil	44701
42-173-34883	THOMPSON, J. CLEO	Oil	50105
42-173-34884	Apache Corporation	Oil	41230
42-173-34885	EQT PRODUCTION TEXAS, LLC	Oil	43657
42-173-34886	Apache Corporation	Oil	40475
42-173-34887	Apache Corporation	Oil	40475
42-173-34888	Apache Corporation	Oil	40478
42-173-34889	MCCLURE OIL COMPANY, INC.	Oil	39634
42-173-34890	SCOUT ENERGY MANAGEMENT LLC	Oil	44685
42-173-34891	MINERAL TECHNOLOGIES, INC.	Oil	41307
42-173-34892	CROWNQUEST OPERATING, LLC	Oil	40686
42-173-34893	Apache Corporation	Oil	43138
42-173-34894	LAREDO PETROLEUM, INC.	Oil	40907
42-173-34895	MDC TEXAS OPERATOR LLC	Oil	43039
42-173-34896	ROYALTY LAND & DEV. CO., INC.	Oil	43096
42-173-34897	Apache Corporation	Oil	41158
42-173-34898	Apache Corporation	Oil	39686
42-173-34899	MCCLURE OIL COMPANY, INC.	Oil	43923
42-173-34900	OXY USA INC.	Oil	50105
42-173-34901	Apache Corporation	Oil	39686
42-173-34902	Apache Corporation	Oil	42907
42-173-34903	LAREDO PETROLEUM, INC.	Oil	43494
42-173-34904	Apache Corporation	Oil	41230
42-173-34905	Apache Corporation	Oil	39557
42-173-34906	Apache Corporation	Oil	39105
42-173-34907	Apache Corporation	Oil	39972
42-173-34908	Apache Corporation	Oil	39972
42-173-34909	LAREDO PETROLEUM, INC.	Oil	43135
42-173-34910	Apache Corporation	Oil	39255
42-173-34911	Apache Corporation	Oil	43288
42-173-34912	Apache Corporation	Oil	42701
42-173-34913	Apache Corporation	Oil	42701
42-173-34914	Apache Corporation	Oil	42912
42-173-34915	Apache Corporation	Oil	45082
42-173-34916	Apache Corporation	Oil	40051
42-173-34917	LAREDO PETROLEUM, INC.	Oil	43807
42-173-34918	DE3 OPERATING LLC	Oil	41849
42-173-34919	LAREDO PETROLEUM, INC.	Oil	42531
42-173-34920	LAREDO PETROLEUM, INC.	Oil	43458
42-173-34921	LAREDO PETROLEUM, INC.	Oil	39939
42-173-34922	Apache Corporation	Oil	41869
42-173-34923	LAREDO PETROLEUM, INC.	Oil	43115
42-173-34924	LAREDO PETROLEUM, INC.	Oil	44113
42-173-34925	LAREDO PETROLEUM, INC.	Oil	42890
42-173-34926	OVINTIV USA INC.	Oil	42808
42-173-34927	OVINTIV USA INC.	Oil	38400
42-173-34928	OVINTIV USA INC.	Oil	40958
42-173-34929	LAREDO PETROLEUM, INC.	Oil	39049
42-173-34930	MIDENERGY OPERATING, LLC	Oil	43853
42-173-34931	PARSLEY ENERGY OPERATIONS, LLC	Oil	41415
42-173-34932	PARSLEY ENERGY OPERATIONS, LLC	Oil	42920
42-173-34933	LAREDO PETROLEUM, INC.	Oil	40054
42-173-34934	Apache Corporation	Oil	40475
42-173-34935	LAREDO PETROLEUM, INC.	Oil	43646
42-173-34936	Apache Corporation	Oil	43241
42-173-34937	LAREDO PETROLEUM, INC.	Oil	39243
42-173-34938	PIONEER NATURAL RES. USA, INC.	Oil	38520
42-173-34939	DISCOVERY NATURAL RESOURCES LLC	Oil	40685
42-173-34940	Apache Corporation	Oil	43497
42-173-34941	Apache Corporation	Oil	41326
42-173-34942	Apache Corporation	Oil	43356
42-173-34943	Apache Corporation	Oil	41707
42-173-34944	Apache Corporation	Oil	39641
42-173-34945	XTO ENERGY INC.	Oil	38900
42-173-34946	PIONEER NATURAL RES. USA, INC.	Oil	40671
42-173-34947	Apache Corporation	Oil	41707
42-173-34948	Apache Corporation	Oil	45324
42-173-34949	BLUESTEM ENERGY HOLDINGS, LLC
42-173-34950	DIAMONDBACK E&P LLC	Oil	41625
42-173-34951	BLUESTEM ENERGY HOLDINGS, LLC
42-173-34952	BLUESTEM ENERGY HOLDINGS, LLC
42-173-34953	BLUESTEM ENERGY HOLDINGS, LLC
42-173-34954	BLUESTEM ENERGY HOLDINGS, LLC
42-173-34955	DIAMONDBACK E&P LLC	Oil	43109
42-173-34956	DIAMONDBACK E&P LLC	Oil	43109
42-173-34957	BLUESTEM ENERGY HOLDINGS, LLC
42-173-34958	DIAMONDBACK E&P LLC	Oil	43056
42-173-34959	DIAMONDBACK E&P LLC	Oil	43056
42-173-34960	BLUESTEM ENERGY HOLDINGS, LLC
42-173-34961	BLUESTEM ENERGY HOLDINGS, LLC
42-173-34962	BLUESTEM ENERGY HOLDINGS, LLC
42-173-34963	BLUESTEM ENERGY HOLDINGS, LLC
42-173-34964	BLUESTEM ENERGY HOLDINGS, LLC
42-173-34965	BLUESTEM ENERGY HOLDINGS, LLC
42-173-34966	Apache Corporation	Oil	43205
42-173-34967	Apache Corporation	Oil	39487
42-173-34968	PIONEER NATURAL RES. USA, INC.	Oil	44389
42-173-34969	Apache Corporation	Oil	39557
42-173-34970	Apache Corporation	Oil	39557
42-173-34971	OVINTIV USA INC.	Oil	38400
42-173-34972	ARCH OIL & GAS, LLC	Oil	44326
42-173-34973	ARCH OIL & GAS, LLC	Oil	43123
42-173-34974	Apache Corporation	Oil	40294
42-173-34975	ARCH OIL & GAS, LLC	Oil	43123
42-173-34976	Apache Corporation	Oil	40243
42-173-34977	Apache Corporation	Oil	41230
42-173-34978	Apache Corporation	Oil	40478
42-173-34979	Apache Corporation	Oil	39105
42-173-34980	LAREDO PETROLEUM, INC.	Oil	41632
42-173-34981	Apache Corporation	Oil	39747
42-173-34982	Apache Corporation	Oil	41380
42-173-34983	Apache Corporation	Oil	41380
42-173-34984	Apache Corporation	Oil	40146
42-173-34985	LAREDO PETROLEUM, INC.	Oil	43586
42-173-34986	DIAMONDBACK E&P LLC	Oil	43056
42-173-34987	Apache Corporation	Oil	41194
42-173-34988	Apache Corporation	Oil	40475
42-173-34989	LAREDO PETROLEUM, INC.	Oil	43693
42-173-34990	OXY USA INC.	Oil	23331
42-173-34992	XTO ENERGY INC.	Oil	38900
42-173-34993	BERRY OIL COMP.
42-173-34994	BERRY OIL COMP.
42-173-34995	BERRY OIL COMP.
42-173-34996	LAREDO PETROLEUM, INC.	Oil	39196
42-173-34997	BERRY OIL COMP.
42-173-34998	BERRY OIL COMP.
42-173-34999	TRILOGY OPERATING, INC.	Oil	42294
42-173-35000	TRILOGY OPERATING, INC.	Oil	51315
42-173-35001	COG OPERATING LLC	Oil	37789
42-173-35002	PIONEER NATURAL RES. USA, INC.	Oil	39512
42-173-35003	BERRY OIL COMP.
42-173-35004	BERRY OIL COMP.
42-173-35005	BERRY OIL COMP.
42-173-35006	BERRY OIL COMP.
42-173-35007	BERRY OIL COMP.
42-173-35008	TRILOGY OPERATING, INC.	Oil	43296
42-173-35009	BERRY OIL COMP.
42-173-35010	BERRY OIL COMP.
42-173-35011	BERRY OIL COMP.
42-173-35012	BERRY OIL COMP.
42-173-35013	BERRY OIL COMP.
42-173-35014	TRILOGY OPERATING, INC.	Oil	42733
42-173-35015	PIONEER NATURAL RES. USA, INC.	Oil	41946
42-173-35016	PIONEER NATURAL RES. USA, INC.	Oil	40860
42-173-35018	DIAMONDBACK E&P LLC	Oil	40428
42-173-35019	Apache Corporation	Oil	39972
42-173-35020	MINERAL TECHNOLOGIES, INC.	Oil	41307
42-173-35021	PARSLEY ENERGY OPERATIONS, LLC	Oil	43252
42-173-35022	MINERAL TECHNOLOGIES, INC.	Oil	44593
42-173-35023	PARSLEY ENERGY OPERATIONS, LLC	Oil	43094
42-173-35024	XTO ENERGY INC.	Oil	40539
42-173-35025	BERRY OIL COMP.
42-173-35026	BERRY OIL COMP.
42-173-35027	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-35028	PARSLEY ENERGY OPERATIONS, LLC	Oil	42861
42-173-35029	PARSLEY ENERGY OPERATIONS, LLC	Oil	42861
42-173-35030	Apache Corporation	Oil	41597
42-173-35031	Apache Corporation	Oil	40146
42-173-35032	Apache Corporation
42-173-35033	Apache Corporation	Oil	39972
42-173-35034	LAREDO PETROLEUM, INC.	Oil	41843
42-173-35035	DIAMONDBACK E&P LLC	Oil	42055
42-173-35036	DIAMONDBACK E&P LLC	Oil	41483
42-173-35037	DIAMONDBACK E&P LLC	Oil	41483
42-173-35038	DIAMONDBACK E&P LLC	Oil	42289
42-173-35039	DIAMONDBACK E&P LLC	Oil	40292
42-173-35040	DIAMONDBACK E&P LLC	Oil	40495
42-173-35041	PIONEER NATURAL RES. USA, INC.	Oil	39951
42-173-35042	LAREDO PETROLEUM, INC.	Oil	41632
42-173-35043	DIAMONDBACK E&P LLC	Oil	42342
42-173-35044	DIAMONDBACK E&P LLC	Oil	40572
42-173-35045	OVINTIV USA INC.	Oil	42359
42-173-35046	DIAMONDBACK E&P LLC	Oil	41657
42-173-35047	DIAMONDBACK E&P LLC	Oil	41931
42-173-35048	DIAMONDBACK E&P LLC	Oil	44270
42-173-35049	DIAMONDBACK E&P LLC	Oil	44086
42-173-35050	LAREDO PETROLEUM, INC.	Oil	41228
42-173-35051	DIAMONDBACK E&P LLC	Oil	44746
42-173-35052	DIAMONDBACK E&P LLC	Oil	44316
42-173-35053	NADEL AND GUSSMAN PERMIAN,L.L.C.
42-173-35054	MINERAL TECHNOLOGIES, INC.	Oil	44701
42-173-35055	DIAMONDBACK E&P LLC	Oil	43257
42-173-35056	DIAMONDBACK E&P LLC	Oil	43257
42-173-35057	DIAMONDBACK E&P LLC	Oil	42512
42-173-35058	PIONEER NATURAL RES. USA, INC.	Oil	38686
42-173-35059	DIAMONDBACK E&P LLC	Oil	42512
42-173-35060	DIAMONDBACK E&P LLC	Oil	42691
42-173-35061	ENERGEN RESOURCES CORPORATION	Oil	43153
42-173-35062	Apache Corporation	Oil	39105
42-173-35063	DIAMONDBACK E&P LLC	Oil	43499
42-173-35064	DIAMONDBACK E&P LLC	Oil	43158
42-173-35065	DIAMONDBACK E&P LLC	Oil	43153
42-173-35066	DIAMONDBACK E&P LLC	Oil	43187
42-173-35067	DIAMONDBACK E&P LLC	Oil	43158
42-173-35068	LAREDO PETROLEUM, INC.	Oil	40909
42-173-35069	PARSLEY ENERGY OPERATIONS, LLC	Oil	42861
42-173-35070	PARSLEY ENERGY OPERATIONS, LLC	Oil	42861
42-173-35071	OXY USA INC.	Oil	43437
42-173-35072	PARSLEY ENERGY OPERATIONS, LLC	Oil	43373
42-173-35073	DIAMONDBACK E&P LLC	Oil	43257
42-173-35074	DIAMONDBACK E&P LLC	Oil	43187
42-173-35075	XTO ENERGY INC.	Oil	44828
42-173-35076	OXY USA INC.	Oil	43616
42-173-35077	Apache Corporation	Oil	41194
42-173-35078	Apache Corporation	Oil	44875
42-173-35079	Apache Corporation	Oil	41158
42-173-35080	Apache Corporation	Oil	41158
42-173-35081	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-35082	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-35083	Apache Corporation	Oil	41158
42-173-35084	OVINTIV USA INC.	Oil	42808
42-173-35085	DIAMONDBACK E&P LLC	Oil	41496
42-173-35086	TRILOGY OPERATING, INC.	Oil	42389
42-173-35087	Apache Corporation	Oil	39641
42-173-35088	MCCLURE OIL COMPANY, INC.	Oil	40628
42-173-35089	BERRY OIL COMP.
42-173-35090	XTO ENERGY INC.	Oil	41786
42-173-35091	XTO ENERGY INC.	Oil	40539
42-173-35092	XTO ENERGY INC.	Oil	39750
42-173-35093	Apache Corporation	Oil	42975
42-173-35094	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-35095	DIAMONDBACK E&P LLC	Oil	39445
42-173-35096	CROWNQUEST OPERATING, LLC	Oil	41407
42-173-35097	OXY USA INC.	Oil	43583
42-173-35098	OVINTIV USA INC.	Oil	40949
42-173-35099	TRILOGY OPERATING, INC.	Oil	51825
42-173-35100	NADEL AND GUSSMAN PERMIAN,L.L.C.
42-173-35102	Apache Corporation	Oil	40145
42-173-35103	Apache Corporation	Oil	40145
42-173-35104	Apache Corporation	Oil	41380
42-173-35105	Apache Corporation	Oil	39614
42-173-35106	NADEL AND GUSSMAN PERMIAN,L.L.C.
42-173-35107	Apache Corporation	Oil	42590
42-173-35108	COG OPERATING LLC	Oil	41832
42-173-35109	LAREDO PETROLEUM, INC.	Oil	43255
42-173-35110	COG OPERATING LLC	Oil	42102
42-173-35111	ATHLON FE OPERATING LLC
42-173-35112	Apache Corporation	Oil	40243
42-173-35113	Apache Corporation	Oil	40247
42-173-35114	Apache Corporation	Oil	39884
42-173-35115	Apache Corporation	Oil	43333
42-173-35116	Apache Corporation	Oil	43966
42-173-35117	PARSLEY ENERGY OPERATIONS, LLC	Oil	44154
42-173-35118	BTA OIL PRODUCERS, LLC
42-173-35119	BTA OIL PRODUCERS, LLC
42-173-35120	BTA OIL PRODUCERS, LLC
42-173-35121	PIONEER NATURAL RES. USA, INC.	Oil	42640
42-173-35122	COG OPERATING LLC	Oil	41205
42-173-35123	Apache Corporation	Oil	40684
42-173-35124	PIONEER NATURAL RES. USA, INC.	Oil	43081
42-173-35125	Apache Corporation	Oil	41230
42-173-35126	Apache Corporation	Oil	41230
42-173-35127	Apache Corporation	Oil	39105
42-173-35128	Apache Corporation	Oil	43333
42-173-35129	Apache Corporation	Oil	43333
42-173-35130	OVINTIV USA INC.	Oil	40958
42-173-35131	NADEL AND GUSSMAN PERMIAN,L.L.C.
42-173-35132	LAREDO PETROLEUM, INC.	Oil	42645
42-173-35133	LAREDO PETROLEUM, INC.
42-173-35134	LAREDO PETROLEUM, INC.	Oil	43818
42-173-35135	PIONEER NATURAL RES. USA, INC.	Oil	06391
42-173-35136	LAREDO PETROLEUM, INC.	Oil	44026
42-173-35137	Apache Corporation	Oil	43902
42-173-35138	Apache Corporation	Oil	43370
42-173-35139	ENERGEN RESOURCES CORPORATION
42-173-35140	Apache Corporation
42-173-35141	PIONEER NATURAL RES. USA, INC.	Oil	39092
42-173-35142	LAREDO PETROLEUM, INC.	Oil	40834
42-173-35143	PIONEER NATURAL RES. USA, INC.	Oil	39571
42-173-35144	LAREDO PETROLEUM, INC.	Oil	40834
42-173-35145	DIAMONDBACK E&P LLC	Oil	42512
42-173-35146	Apache Corporation	Oil	39972
42-173-35147	Apache Corporation	Oil	39255
42-173-35148	Apache Corporation	Oil	43312
42-173-35149	OXY USA INC.	Oil	42763
42-173-35150	OXY USA INC.	Oil	42763
42-173-35151	Apache Corporation	Oil	41078
42-173-35152	Apache Corporation	Oil	41158
42-173-35153	Apache Corporation	Oil	40602
42-173-35154	Apache Corporation	Oil	43624
42-173-35155	Apache Corporation	Oil	43370
42-173-35156	Apache Corporation	Oil	40143
42-173-35157	Apache Corporation	Oil	41158
42-173-35158	Apache Corporation	Oil	40146
42-173-35159	OVINTIV USA INC.	Oil	42535
42-173-35160	Apache Corporation	Oil	40146
42-173-35161	PIONEER NATURAL RES. USA, INC.	Oil	38142
42-173-35162	Apache Corporation	Oil	43962
42-173-35163	DIAMONDBACK E&P LLC	Oil	43865
42-173-35164	DIAMONDBACK E&P LLC	Oil	43865
42-173-35165	DIAMONDBACK E&P LLC	Oil	43865
42-173-35166	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35167	PIONEER NATURAL RES. USA, INC.	Oil	38388
42-173-35168	DIAMONDBACK E&P LLC	Oil	43857
42-173-35169	DIAMONDBACK E&P LLC	Oil	43985
42-173-35170	Apache Corporation	Oil	42912
42-173-35171	Apache Corporation	Oil	41918
42-173-35172	DIAMONDBACK E&P LLC	Oil	42456
42-173-35173	PIONEER NATURAL RES. USA, INC.
42-173-35174	DIAMONDBACK E&P LLC	Oil	41591
42-173-35175	DIAMONDBACK E&P LLC	Oil	41931
42-173-35176	DIAMONDBACK E&P LLC	Oil	43732
42-173-35177	DIAMONDBACK E&P LLC	Oil	43732
42-173-35178	PIONEER NATURAL RES. USA, INC.	Oil	39724
42-173-35179	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35180	LAREDO PETROLEUM, INC.	Oil	45482
42-173-35181	NADEL AND GUSSMAN PERMIAN,L.L.C.
42-173-35182	OVINTIV USA INC.	Oil	42808
42-173-35183	PIONEER NATURAL RES. USA, INC.	Oil	41379
42-173-35184	LAREDO PETROLEUM, INC.	Oil	43849
42-173-35185	DIAMONDBACK E&P LLC	Oil	42512
42-173-35186	LAREDO PETROLEUM, INC.	Oil	45483
42-173-35187	SOUTHWEST ROYALTIES, INC.	Oil	39363
42-173-35188	Apache Corporation	Oil	40143
42-173-35189	PIONEER NATURAL RES. USA, INC.	Oil	44263
42-173-35190	OXY USA INC.	Oil	42763
42-173-35191	RANGE PRODUCTION COMPANY
42-173-35192	Apache Corporation	Oil	39255
42-173-35193	Apache Corporation	Oil	43333
42-173-35194	Apache Corporation	Oil	39557
42-173-35195	Apache Corporation	Oil	39884
42-173-35196	LAREDO PETROLEUM, INC.	Oil	43698
42-173-35197	Apache Corporation	Oil	39105
42-173-35198	LAREDO PETROLEUM, INC.	Oil	43425
42-173-35199	PIONEER NATURAL RES. USA, INC.	Oil	42599
42-173-35200	PIONEER NATURAL RES. USA, INC.	Oil	38142
42-173-35201	MCCLURE OIL COMPANY, INC.	Oil	43987
42-173-35202	MCCLURE OIL COMPANY, INC.	Oil	43987
42-173-35203	Apache Corporation	Oil	39105
42-173-35204	Apache Corporation	Oil	43787
42-173-35205	Apache Corporation	Oil	44502
42-173-35206	DIAMONDBACK E&P LLC	Oil	41657
42-173-35207	DIAMONDBACK E&P LLC	Oil	43857
42-173-35208	DIAMONDBACK E&P LLC	Oil	43857
42-173-35209	DIAMONDBACK E&P LLC	Oil	43732
42-173-35210	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-35211	Apache Corporation	Oil	40145
42-173-35212	Apache Corporation	Oil	41778
42-173-35213	Apache Corporation	Oil	40145
42-173-35214	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-35215	Apache Corporation	Oil	40246
42-173-35216	Apache Corporation	Oil	39105
42-173-35217	DIAMONDBACK E&P LLC	Oil	38310
42-173-35218	OVINTIV USA INC.	Oil	40949
42-173-35219	OVINTIV USA INC.	Oil	40958
42-173-35220	Apache Corporation	Oil	44331
42-173-35221	Apache Corporation	Oil	44226
42-173-35222	OVINTIV USA INC.	Oil	42359
42-173-35223	LAREDO PETROLEUM, INC.	Oil	44027
42-173-35224	OVINTIV USA INC.	Oil	42862
42-173-35225	Apache Corporation	Oil	40014
42-173-35226	Apache Corporation	Oil	39255
42-173-35227	Apache Corporation	Oil	41597
42-173-35228	Apache Corporation	Oil	42182
42-173-35229	Apache Corporation	Oil	41707
42-173-35230	Apache Corporation	Oil	41707
42-173-35231	Apache Corporation	Oil	40143
42-173-35232	LAREDO PETROLEUM, INC.	Oil	43289
42-173-35233	Apache Corporation	Oil	41158
42-173-35234	Apache Corporation	Oil	41158
42-173-35235	Apache Corporation	Oil	40146
42-173-35236	Apache Corporation	Oil	39808
42-173-35237	PARSLEY ENERGY OPERATIONS, LLC	Oil	43030
42-173-35238	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35239	Apache Corporation	Oil	43771
42-173-35240	LAREDO PETROLEUM, INC.	Oil	41436
42-173-35241	Apache Corporation	Oil	43338
42-173-35242	LAREDO PETROLEUM, INC.	Oil	44175
42-173-35243	OVINTIV USA INC.	Oil	43286
42-173-35244	Apache Corporation	Oil	40145
42-173-35245	LAREDO PETROLEUM, INC.	Oil	43199
42-173-35246	OVINTIV USA INC.	Oil	42808
42-173-35247	LAREDO PETROLEUM, INC.	Oil	43586
42-173-35248	LAREDO PETROLEUM, INC.	Oil	43629
42-173-35249	LAREDO PETROLEUM, INC.	Oil	43729
42-173-35250	DIAMONDBACK E&P LLC	Oil	44622
42-173-35251	LAREDO PETROLEUM, INC.	Oil	43199
42-173-35252	LAREDO PETROLEUM, INC.	Oil	44373
42-173-35253	Hunt Oil Company	Oil	34760
42-173-35254	Apache Corporation	Oil	44172
42-173-35255	BERRY OIL COMP.
42-173-35256	Apache Corporation	Oil	39747
42-173-35257	BERRY OIL COMP.
42-173-35258	Apache Corporation	Oil	41230
42-173-35259	PARSLEY ENERGY OPERATIONS, LLC	Oil	44065
42-173-35260	Apache Corporation	Oil	41230
42-173-35261	Apache Corporation	Oil	43855
42-173-35262	Apache Corporation	Oil	44306
42-173-35263	PIONEER NATURAL RES. USA, INC.	Oil	39951
42-173-35264	Apache Corporation	Oil	44199
42-173-35265	Apache Corporation	Oil	43288
42-173-35266	Apache Corporation	Oil	39808
42-173-35267	Apache Corporation	Oil	43288
42-173-35268	Apache Corporation	Oil	39808
42-173-35269	OVINTIV USA INC.	Oil	42808
42-173-35270	Apache Corporation	Oil	40294
42-173-35271	Apache Corporation	Oil	39487
42-173-35272	Apache Corporation	Oil	40294
42-173-35273	Apache Corporation	Oil	41707
42-173-35274	Apache Corporation	Oil	41913
42-173-35275	Apache Corporation	Oil	45769
42-173-35276	CROWNQUEST OPERATING, LLC	Oil	43570
42-173-35277	DIAMONDBACK E&P LLC	Oil	43506
42-173-35278	Apache Corporation	Oil	44867
42-173-35279	Apache Corporation	Oil	39614
42-173-35280	Apache Corporation	Oil	42701
42-173-35281	ATHLON FE OPERATING LLC
42-173-35282	Apache Corporation	Oil	39884
42-173-35283	Apache Corporation	Oil	40210
42-173-35284	DIAMONDBACK E&P LLC	Oil	43506
42-173-35285	DIAMONDBACK E&P LLC	Oil	43506
42-173-35286	DIAMONDBACK E&P LLC	Oil	43726
42-173-35287	DIAMONDBACK E&P LLC	Oil	43726
42-173-35288	LAREDO PETROLEUM, INC.	Oil	49971
42-173-35289	Apache Corporation	Oil	39557
42-173-35290	BURLESON PETROLEUM, INC.	Oil	42745
42-173-35291	MCCLURE OIL COMPANY, INC.
42-173-35292	MCCLURE OIL COMPANY, INC.	Oil	43987
42-173-35293	CROWNQUEST OPERATING, LLC	Oil	43105
42-173-35294	ENDEAVOR ENERGY RESOURCES L.P.	Oil	43389
42-173-35295	ENDEAVOR ENERGY RESOURCES L.P.	Oil	43389
42-173-35296	BURLESON PETROLEUM, INC.
42-173-35297	MCCLURE OIL COMPANY, INC.
42-173-35298	MCCLURE OIL COMPANY, INC.	Oil	44254
42-173-35299	Apache Corporation
42-173-35300	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-35301	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-35302	LAREDO PETROLEUM, INC.	Oil	41543
42-173-35303	Apache Corporation	Oil	40144
42-173-35304	Apache Corporation	Oil	40144
42-173-35305	Apache Corporation	Oil	43909
42-173-35306	XTO ENERGY INC.	Oil	39648
42-173-35307	Apache Corporation	Oil	40145
42-173-35308	Apache Corporation	Oil	39884
42-173-35309	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-35310	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-35312	Apache Corporation	Oil	40014
42-173-35313	Apache Corporation	Oil	39873
42-173-35314	CROWNQUEST OPERATING, LLC	Oil	44330
42-173-35315	CROWNQUEST OPERATING, LLC	Oil	43714
42-173-35316	Apache Corporation	Oil	39972
42-173-35317	Apache Corporation	Oil	40243
42-173-35318	DIAMONDBACK E&P LLC	Oil	44195
42-173-35319	DIAMONDBACK E&P LLC	Oil	44195
42-173-35320	DIAMONDBACK E&P LLC	Oil	44195
42-173-35321	Apache Corporation	Oil	40854
42-173-35322	Apache Corporation	Oil	44599
42-173-35323	Apache Corporation	Oil	40295
42-173-35324	Apache Corporation	Oil	44335
42-173-35325	Apache Corporation	Oil	39641
42-173-35326	DIAMONDBACK E&P LLC	Oil	43257
42-173-35327	DIAMONDBACK E&P LLC	Oil	43257
42-173-35328	DIAMONDBACK E&P LLC	Oil	42512
42-173-35329	DIAMONDBACK E&P LLC	Oil	42512
42-173-35330	DIAMONDBACK E&P LLC	Oil	39445
42-173-35331	Apache Corporation	Oil	41078
42-173-35332	Apache Corporation	Oil	41008
42-173-35333	Apache Corporation	Oil	41078
42-173-35334	Apache Corporation	Oil	43511
42-173-35335	LAREDO PETROLEUM, INC.	Oil	41843
42-173-35336	Apache Corporation	Oil	43624
42-173-35337	LAREDO PETROLEUM, INC.	Oil	43142
42-173-35338	Apache Corporation	Oil	40816
42-173-35339	Apache Corporation	Oil	40478
42-173-35340	LAREDO PETROLEUM, INC.	Oil	44564
42-173-35341	MCCLURE OIL COMPANY, INC.
42-173-35342	OXY USA INC.	Oil	43791
42-173-35343	OXY USA INC.	Oil	43795
42-173-35344	OXY USA INC.	Oil	44170
42-173-35345	COG OPERATING LLC	Oil	41205
42-173-35346	COG OPERATING LLC	Oil	38162
42-173-35347	Apache Corporation	Oil	43633
42-173-35348	PARSLEY ENERGY OPERATIONS, LLC	Oil	43686
42-173-35349	Apache Corporation	Oil	40904
42-173-35350	LAREDO PETROLEUM, INC.	Oil	43115
42-173-35351	LAREDO PETROLEUM, INC.	Oil	43115
42-173-35352	Apache Corporation	Oil	43822
42-173-35353	Apache Corporation	Oil	43822
42-173-35354	OVINTIV USA INC.	Oil	40958
42-173-35355	OVINTIV USA INC.	Oil	40958
42-173-35356	LAREDO PETROLEUM, INC.	Oil	45204
42-173-35357	LAREDO PETROLEUM, INC.	Oil	43672
42-173-35358	MCCLURE OIL COMPANY, INC.	Oil	41342
42-173-35359	Apache Corporation	Oil	40146
42-173-35360	Apache Corporation	Oil	40143
42-173-35361	Apache Corporation	Oil	40143
42-173-35362	Apache Corporation
42-173-35363	Apache Corporation	Oil	43962
42-173-35364	Apache Corporation	Oil	43856
42-173-35365	Apache Corporation	Oil	43856
42-173-35366	Apache Corporation	Oil	44726
42-173-35367	Apache Corporation	Oil	40247
42-173-35368	PIONEER NATURAL RES. USA, INC.	Oil	39512
42-173-35369	Apache Corporation	Oil	40144
42-173-35370	MINERAL TECHNOLOGIES, INC.	Oil	40824
42-173-35371	MINERAL TECHNOLOGIES, INC.	Oil	44665
42-173-35372	PARSLEY ENERGY OPERATIONS, LLC	Oil	42920
42-173-35373	Apache Corporation	Oil	44866
42-173-35374	PIONEER NATURAL RES. USA, INC.	Oil	42606
42-173-35375	Apache Corporation	Oil	43633
42-173-35376	Apache Corporation	Oil	43633
42-173-35377	OXY USA INC.	Oil	42648
42-173-35378	PIONEER NATURAL RES. USA, INC.	Oil	42546
42-173-35379	PIONEER NATURAL RES. USA, INC.	Oil	41853
42-173-35380	DIAMONDBACK E&P LLC	Oil	41657
42-173-35381	PIONEER NATURAL RES. USA, INC.	Oil	42640
42-173-35382	Apache Corporation	Oil	41618
42-173-35383	PIONEER NATURAL RES. USA, INC.	Oil	42780
42-173-35384	Apache Corporation	Oil	41326
42-173-35385	PIONEER NATURAL RES. USA, INC.	Oil	39503
42-173-35386	OVINTIV USA INC.	Oil	40958
42-173-35387	Apache Corporation	Oil	41230
42-173-35388	FDL OPERATING, LLC	Oil	41062
42-173-35390	Apache Corporation	Oil	43212
42-173-35391	Apache Corporation	Oil	44881
42-173-35392	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-35393	LAREDO PETROLEUM, INC.	Oil	39196
42-173-35394	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-35395	MAVERICK DISPOSAL, LLC
42-173-35396	PIONEER NATURAL RES. USA, INC.	Oil	43081
42-173-35397	LAREDO PETROLEUM, INC.	Oil	39243
42-173-35398	LAREDO PETROLEUM, INC.	Oil	39332
42-173-35399	MAVERICK DISPOSAL, LLC
42-173-35400	CONOCOPHILLIPS COMPANY	Oil	41246
42-173-35401	LAREDO PETROLEUM, INC.	Oil	42928
42-173-35402	LAREDO PETROLEUM, INC.	Oil	40054
42-173-35403
42-173-35404	CROWNQUEST OPERATING, LLC	Oil	43792
42-173-35405	DE3 OPERATING LLC	Oil	41849
42-173-35406	CROWNQUEST OPERATING, LLC	Oil	43804
42-173-35407	Apache Corporation	Oil	41707
42-173-35408	Apache Corporation	Oil	41707
42-173-35409	OXY USA INC.	Oil	43770
42-173-35410	DISCOVERY NATURAL RESOURCES LLC	Oil	41921
42-173-35411	DISCOVERY NATURAL RESOURCES LLC	Oil	41921
42-173-35412	OXY USA INC.	Oil	23331
42-173-35413	OXY USA INC.	Oil	44545
42-173-35414	TRILOGY OPERATING, INC.	Oil	43509
42-173-35415	Apache Corporation	Oil	39747
42-173-35416	PETROPLEX ENERGY INC.	Oil	44114
42-173-35417	Apache Corporation	Oil	44866
42-173-35418	Apache Corporation	Oil	44865
42-173-35419	Apache Corporation	Oil	39884
42-173-35420	Apache Corporation	Oil	43854
42-173-35421	Apache Corporation	Oil	44658
42-173-35422	Apache Corporation	Oil	39808
42-173-35423	LAREDO PETROLEUM, INC.	Oil	40909
42-173-35424	Apache Corporation	Oil	39972
42-173-35425	Apache Corporation	Oil	39972
42-173-35426	NADEL AND GUSSMAN PERMIAN,L.L.C.
42-173-35427	Apache Corporation	Oil	39808
42-173-35428	PETROPLEX ENERGY INC.	Oil	44114
42-173-35429	Apache Corporation	Oil	41597
42-173-35430	DIAMONDBACK E&P LLC	Oil	43857
42-173-35431	Apache Corporation	Oil	41618
42-173-35432	Apache Corporation	Oil	41951
42-173-35433	MCCLURE OIL COMPANY, INC.	Oil	41963
42-173-35434	MCCLURE OIL COMPANY, INC.	Oil	41963
42-173-35435	MCCLURE OIL COMPANY, INC.	Oil	41963
42-173-35436	Apache Corporation	Oil	39614
42-173-35437	OVINTIV USA INC.	Oil	39167
42-173-35438	Apache Corporation	Oil	44437
42-173-35439	LAREDO PETROLEUM, INC.	Oil	41445
42-173-35440	Apache Corporation	Oil	41197
42-173-35441	LAREDO PETROLEUM, INC.	Oil	41445
42-173-35442	DIAMONDBACK E&P LLC	Oil	42289
42-173-35443	DIAMONDBACK E&P LLC	Oil	42289
42-173-35444	DIAMONDBACK E&P LLC	Oil	39445
42-173-35445	DIAMONDBACK E&P LLC	Oil	43257
42-173-35446	DIAMONDBACK E&P LLC	Oil	42691
42-173-35447	DIAMONDBACK E&P LLC	Oil	42691
42-173-35448	DIAMONDBACK E&P LLC	Oil	44163
42-173-35449	DIAMONDBACK E&P LLC	Oil	44163
42-173-35450	DIAMONDBACK E&P LLC	Oil	44163
42-173-35451	OVINTIV USA INC.	Oil	22750
42-173-35452	Apache Corporation	Oil	41194
42-173-35453	PIONEER NATURAL RES. USA, INC.	Oil	41379
42-173-35454	Apache Corporation
42-173-35455	PIONEER NATURAL RES. USA, INC.	Oil	40538
42-173-35456	Apache Corporation
42-173-35457	PARSLEY ENERGY OPERATIONS, LLC	Oil	24085
42-173-35458	LAREDO PETROLEUM, INC.
42-173-35459	PIONEER NATURAL RES. USA, INC.	Oil	38388
42-173-35460	PARSLEY ENERGY OPERATIONS, LLC	Oil	43030
42-173-35461	Lario Oil & Gas Company	Oil	44859
42-173-35462	PIONEER NATURAL RES. USA, INC.	Oil	39571
42-173-35463	MCCLURE OIL COMPANY, INC.	Oil	41449
42-173-35464	SMC OIL & GAS, INC.	Oil	44090
42-173-35465	COG OPERATING LLC	Oil	37789
42-173-35466	PIONEER NATURAL RES. USA, INC.	Oil	40671
42-173-35467	DISCOVERY NATURAL RESOURCES LLC	Oil	42065
42-173-35468	PARSLEY ENERGY OPERATIONS, LLC	Oil	43774
42-173-35469	PARSLEY ENERGY OPERATIONS, LLC	Oil	43252
42-173-35470	Apache Corporation	Oil	43333
42-173-35471	Apache Corporation	Oil	44437
42-173-35472	COG OPERATING LLC	Oil	41832
42-173-35473	Apache Corporation	Oil	41078
42-173-35474	Apache Corporation	Oil	41194
42-173-35475	TRILOGY OPERATING, INC.	Oil	51671
42-173-35476	COG OPERATING LLC	Oil	37789
42-173-35477	LAREDO PETROLEUM, INC.	Oil	44220
42-173-35478	DIAMONDBACK E&P LLC	Oil	44332
42-173-35479	Apache Corporation	Oil	40247
42-173-35480	Apache Corporation	Oil	40247
42-173-35481	DISCOVERY NATURAL RESOURCES LLC	Oil	42065
42-173-35482	Apache Corporation	Oil	45418
42-173-35483	DISCOVERY NATURAL RESOURCES LLC	Oil	42065
42-173-35484	Apache Corporation	Oil	40295
42-173-35485	Apache Corporation	Oil	40247
42-173-35486	COG OPERATING LLC	Oil	42102
42-173-35487	COG OPERATING LLC	Oil	42865
42-173-35488
42-173-35489	SAXET OIL CORPORATION
42-173-35490	DIAMONDBACK E&P LLC	Oil	44181
42-173-35491	DIAMONDBACK E&P LLC	Oil	42511
42-173-35492	DIAMONDBACK E&P LLC	Oil	42456
42-173-35493	Apache Corporation	Oil	40243
42-173-35494	Apache Corporation	Oil	40816
42-173-35495	DIAMONDBACK E&P LLC	Oil	23323
42-173-35496	DIAMONDBACK E&P LLC	Oil	41657
42-173-35497	DIAMONDBACK E&P LLC	Oil	41657
42-173-35498	ENERGEN RESOURCES CORPORATION
42-173-35499	DIAMONDBACK E&P LLC	Oil	41683
42-173-35500	DIAMONDBACK E&P LLC	Oil	42511
42-173-35501	DIAMONDBACK E&P LLC	Oil	41683
42-173-35502	ENERGEN RESOURCES CORPORATION
42-173-35503	DIAMONDBACK E&P LLC	Oil	43153
42-173-35504	DIAMONDBACK E&P LLC	Oil	43153
42-173-35505	DIAMONDBACK E&P LLC	Oil	44195
42-173-35506	DIAMONDBACK E&P LLC	Oil	41591
42-173-35507	DIAMONDBACK E&P LLC	Oil	41780
42-173-35508	Apache Corporation	Oil	43787
42-173-35509	DIAMONDBACK E&P LLC	Oil	41780
42-173-35510	Apache Corporation	Oil	40144
42-173-35511	DIAMONDBACK E&P LLC	Oil	41780
42-173-35512	Apache Corporation	Oil	44460
42-173-35513	Apache Corporation	Oil	41003
42-173-35514	LAREDO PETROLEUM, INC.	Oil	40133
42-173-35515	OXY USA INC.	Oil	43437
42-173-35516	PARSLEY ENERGY OPERATIONS, LLC	Oil	24380
42-173-35517	LAREDO PETROLEUM, INC.	Oil	43960
42-173-35518	MINERAL TECHNOLOGIES, INC.	Oil	45321
42-173-35519	Apache Corporation
42-173-35520	PARSLEY ENERGY OPERATIONS, LLC	Oil	24135
42-173-35521	MCCLURE OIL COMPANY, INC.	Oil	42139
42-173-35522	MCCLURE OIL COMPANY, INC.	Oil	41963
42-173-35524	CROWNQUEST OPERATING, LLC	Oil	43965
42-173-35525	PARSLEY ENERGY OPERATIONS, LLC	Oil	24194
42-173-35526	OVINTIV USA INC.	Oil	40958
42-173-35527	DISCOVERY NATURAL RESOURCES LLC	Oil	42065
42-173-35528	CROWNQUEST OPERATING, LLC	Oil	43998
42-173-35529	CROWNQUEST OPERATING, LLC	Oil	44103
42-173-35530	DISCOVERY NATURAL RESOURCES LLC	Oil	42065
42-173-35531	LAREDO PETROLEUM, INC.	Oil	44137
42-173-35532	OXY USA INC.	Oil	43616
42-173-35533	LAREDO PETROLEUM, INC.	Oil	44010
42-173-35534	OXY USA INC.	Oil	43791
42-173-35535	INDEPENDENCE RESOURCES MGMT, LLC	Oil	44138
42-173-35536	INDEPENDENCE RESOURCES MGMT, LLC	Oil	43797
42-173-35537	BURLESON PETROLEUM, INC.	Oil	45408
42-173-35538	LAREDO PETROLEUM, INC.	Oil	43563
42-173-35539	DIAMONDBACK E&P LLC	Oil	44275
42-173-35540	DIAMONDBACK E&P LLC	Oil	44452
42-173-35541	DIAMONDBACK E&P LLC	Oil	44452
42-173-35542	LAREDO PETROLEUM, INC.	Oil	52535
42-173-35543	DIAMONDBACK E&P LLC	Oil	45111
42-173-35544	Apache Corporation	Oil	41618
42-173-35545	Apache Corporation	Oil	39614
42-173-35546	Apache Corporation	Oil	39614
42-173-35547	Apache Corporation	Oil	41003
42-173-35548	Apache Corporation	Oil	44751
42-173-35549	Apache Corporation	Oil	41326
42-173-35550	LAREDO PETROLEUM, INC.	Oil	39049
42-173-35551	DISCOVERY NATURAL RESOURCES LLC	Oil	40685
42-173-35552	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35553	BURLESON PETROLEUM, INC.	Oil	53368
42-173-35554	DIAMONDBACK E&P LLC	Oil	41931
42-173-35555	MDC TEXAS OPERATOR LLC	Oil	44461
42-173-35556
42-173-35557	DIAMONDBACK E&P LLC	Oil	44454
42-173-35558	CROWNQUEST OPERATING, LLC	Oil	43714
42-173-35559	DIAMONDBACK E&P LLC	Oil	44195
42-173-35560	Apache Corporation	Oil	40247
42-173-35561	Apache Corporation	Oil	40247
42-173-35562	Apache Corporation	Oil	40247
42-173-35563	OVINTIV USA INC.	Oil	39167
42-173-35564	Apache Corporation	Oil	40247
42-173-35565	DISCOVERY NATURAL RESOURCES LLC	Oil	40685
42-173-35566	DISCOVERY NATURAL RESOURCES LLC	Oil	40685
42-173-35567	OVINTIV USA INC.	Oil	44158
42-173-35568	LAREDO PETROLEUM, INC.	Oil	45426
42-173-35569	TRILOGY OPERATING, INC.	Oil	51315
42-173-35570	TRILOGY OPERATING, INC.	Oil	51045
42-173-35571	CROWNQUEST OPERATING, LLC	Oil	44516
42-173-35572	CROWNQUEST OPERATING, LLC	Oil	44339
42-173-35573	PIONEER NATURAL RES. USA, INC.	Oil	41086
42-173-35574	PIONEER NATURAL RES. USA, INC.	Oil	39951
42-173-35575	Apache Corporation	Oil	44698
42-173-35576	Apache Corporation	Oil	44057
42-173-35577	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35578	OXY USA INC.	Oil	50105
42-173-35579	OXY USA INC.	Oil	40806
42-173-35580	CROWNQUEST OPERATING, LLC	Oil	43941
42-173-35581	DIAMONDBACK E&P LLC	Oil	40292
42-173-35582	DIAMONDBACK E&P LLC	Oil	40292
42-173-35583	LAREDO PETROLEUM, INC.	Oil	43698
42-173-35584	Apache Corporation	Oil	40869
42-173-35585	Apache Corporation	Oil	43370
42-173-35586	Apache Corporation	Oil	43370
42-173-35587	Apache Corporation	Oil	43370
42-173-35588	Apache Corporation	Oil	43370
42-173-35589	ATLAS PL MID-CONT. WESTTEX, LLC
42-173-35590	Apache Corporation	Oil	44602
42-173-35591	Apache Corporation	Oil	44819
42-173-35592	Apache Corporation
42-173-35593	LAREDO PETROLEUM, INC.	Oil	43142
42-173-35594	LAREDO PETROLEUM, INC.	Oil	44251
42-173-35595	CROWNQUEST OPERATING, LLC	Oil	44104
42-173-35596	PARSLEY ENERGY OPERATIONS, LLC	Oil	24596
42-173-35597	PROBITY SWD, LLC	Oil	43751
42-173-35598	PARSLEY ENERGY OPERATIONS, LLC	Oil	24660
42-173-35599	Apache Corporation	Oil	43997
42-173-35600	Apache Corporation	Oil	39873
42-173-35601	Apache Corporation	Oil	41326
42-173-35602	Apache Corporation	Oil	41326
42-173-35603	Apache Corporation	Oil	41326
42-173-35604	LAREDO PETROLEUM, INC.	Oil	43545
42-173-35605	Apache Corporation	Oil	43771
42-173-35606	Apache Corporation	Oil	45196
42-173-35607	COG OPERATING LLC
42-173-35608	Apache Corporation	Oil	43991
42-173-35609	DIAMONDBACK E&P LLC	Oil	44017
42-173-35610	DIAMONDBACK E&P LLC	Oil	44017
42-173-35611	DIAMONDBACK E&P LLC	Oil	42512
42-173-35612	DIAMONDBACK E&P LLC	Oil	43257
42-173-35613	DIAMONDBACK E&P LLC	Oil	43257
42-173-35614	Apache Corporation	Oil	43497
42-173-35615	Apache Corporation	Oil	43991
42-173-35616	Apache Corporation	Oil	43991
42-173-35617	CROWNQUEST OPERATING, LLC	Oil	43924
42-173-35618	LAREDO PETROLEUM, INC.	Oil	44979
42-173-35619	TRILOGY OPERATING, INC.	Oil	44364
42-173-35620	BURLESON PETROLEUM, INC.	Oil	45608
42-173-35621	Apache Corporation	Oil	45336
42-173-35622	PIONEER NATURAL RES. USA, INC.	Oil	43037
42-173-35623	DIAMONDBACK E&P LLC	Oil	40495
42-173-35624	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35625	RANGE PRODUCTION COMPANY
42-173-35626	ENERGEN RESOURCES CORPORATION
42-173-35627	Apache Corporation	Oil	43333
42-173-35628	Apache Corporation	Oil	52741
42-173-35629	Apache Corporation	Oil	40295
42-173-35630	Apache Corporation	Oil	40247
42-173-35631	Apache Corporation	Oil	40247
42-173-35632	Apache Corporation	Oil	40247
42-173-35633	COG OPERATING LLC
42-173-35634	COG OPERATING LLC	Oil	38162
42-173-35635	PARSLEY ENERGY OPERATIONS, LLC	Oil	45263
42-173-35636	FED OPERATING LLC	Oil	52517
42-173-35637	OVINTIV USA INC.	Oil	44158
42-173-35638	Apache Corporation	Oil	40247
42-173-35639	Apache Corporation	Oil	40247
42-173-35640	OVINTIV USA INC.	Oil	40958
42-173-35641	COG OPERATING LLC	Oil	44524
42-173-35642	Apache Corporation	Oil	44920
42-173-35643	PARSLEY ENERGY OPERATIONS, LLC	Oil	42678
42-173-35644	PARSLEY ENERGY OPERATIONS, LLC	Oil	42678
42-173-35645	PARSLEY ENERGY OPERATIONS, LLC	Oil	42678
42-173-35646	Apache Corporation	Oil	44698
42-173-35647	LAREDO PETROLEUM, INC.	Oil	42890
42-173-35648	Apache Corporation	Oil	41194
42-173-35649	ROYALTY LAND & DEV. CO., INC.	Oil	44831
42-173-35650	ROYALTY LAND & DEV. CO., INC.	Oil	43096
42-173-35651	TRILOGY OPERATING, INC.	Oil	43509
42-173-35652	PIONEER NATURAL RES. USA, INC.	Oil	41086
42-173-35653	Apache Corporation	Oil	40602
42-173-35654	CROWNQUEST OPERATING, LLC	Oil	43965
42-173-35655	Apache Corporation	Oil	41230
42-173-35656	OVINTIV USA INC.	Oil	43883
42-173-35657	LAREDO PETROLEUM, INC.	Oil	44525
42-173-35658	PETROPLEX SWD SYSTEM, LLC	Oil	45221
42-173-35659	MESQUITE SWD INC
42-173-35660	Apache Corporation	Oil	40926
42-173-35661	Apache Corporation
42-173-35662	COG OPERATING LLC	Oil	41832
42-173-35663	COG OPERATING LLC	Oil	42865
42-173-35665	DE3 OPERATING LLC	Oil	41849
42-173-35666	DE3 OPERATING LLC	Oil	41849
42-173-35667	OXY USA INC.	Oil	43437
42-173-35668	LAREDO PETROLEUM, INC.	Oil	39051
42-173-35669	LAREDO PETROLEUM, INC.	Oil	43629
42-173-35670	OXY USA INC.	Oil	43770
42-173-35671	CROWNQUEST OPERATING, LLC	Oil	43804
42-173-35672	CROWNQUEST OPERATING, LLC	Oil	43941
42-173-35673	LAREDO PETROLEUM, INC.	Oil	17825
42-173-35674	PIONEER NATURAL RES. USA, INC.	Oil	41881
42-173-35675	COG OPERATING LLC	Oil	37789
42-173-35676	Apache Corporation	Oil	39884
42-173-35677	OXY USA INC.	Oil	44545
42-173-35678	OXY USA INC.	Oil	44545
42-173-35679	LAREDO PETROLEUM, INC.	Oil	44563
42-173-35680	LAREDO PETROLEUM, INC.	Oil	44901
42-173-35681	PIONEER NATURAL RES. USA, INC.	Oil	39503
42-173-35682	Apache Corporation	Oil	44172
42-173-35683	LAREDO PETROLEUM, INC.	Oil	44541
42-173-35684	Apache Corporation	Oil	45073
42-173-35685	COG OPERATING LLC	Oil	38162
42-173-35686	Apache Corporation	Oil	40051
42-173-35687	Apache Corporation	Oil	44620
42-173-35688	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35689	LAREDO PETROLEUM, INC.	Oil	41036
42-173-35690	Apache Corporation	Oil	44726
42-173-35691	Apache Corporation	Oil	41008
42-173-35692	Apache Corporation
42-173-35693	PARSLEY ENERGY OPERATIONS, LLC	Oil	43535
42-173-35694	DE3 OPERATING LLC	Oil	40634
42-173-35695	DE3 OPERATING LLC	Oil	40634
42-173-35696	PARSLEY ENERGY OPERATIONS, LLC	Oil	43686
42-173-35697	CROWNQUEST OPERATING, LLC
42-173-35698	Apache Corporation	Oil	44790
42-173-35699	Apache Corporation	Oil	44216
42-173-35700	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35701	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35702	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35703	TRILOGY OPERATING, INC.	Oil	44230
42-173-35704	OVINTIV USA INC.	Oil	43992
42-173-35705	LAREDO PETROLEUM, INC.	Oil	44403
42-173-35706	OVINTIV USA INC.	Oil	44223
42-173-35707	OVINTIV USA INC.	Oil	44223
42-173-35708	Apache Corporation	Oil	40478
42-173-35709	DIAMONDBACK E&P LLC	Oil	41931
42-173-35710	LAREDO PETROLEUM - DALLAS, INC.
42-173-35711	Apache Corporation	Oil	39557
42-173-35712	Apache Corporation
42-173-35713	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35714	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35715	Apache Corporation	Oil	46103
42-173-35716	LAREDO PETROLEUM, INC.	Oil	45841
42-173-35717	Apache Corporation	Oil	43624
42-173-35718	LAREDO PETROLEUM, INC.	Oil	44542
42-173-35719	LAREDO PETROLEUM, INC.	Oil	40907
42-173-35720	MCCLURE OIL COMPANY, INC.
42-173-35721	MCCLURE OIL COMPANY, INC.
42-173-35722	ALLEDER INC.	Oil	44947
42-173-35723	Apache Corporation	Oil	41008
42-173-35724	PETROPLEX ENERGY INC.
42-173-35725	Apache Corporation	Oil	41008
42-173-35726	Apache Corporation	Oil	41008
42-173-35727	Apache Corporation	Oil	41008
42-173-35728	LAREDO PETROLEUM, INC.	Oil	41976
42-173-35729	MDC TEXAS OPERATOR LLC	Oil	44455
42-173-35730	LAREDO PETROLEUM, INC.	Oil	44543
42-173-35732	DIAMONDBACK E&P LLC	Oil	45302
42-173-35733	Apache Corporation	Oil	40247
42-173-35734	Apache Corporation
42-173-35735	Apache Corporation	Oil	40247
42-173-35736	LAREDO PETROLEUM, INC.	Oil	44826
42-173-35737	LAREDO PETROLEUM, INC.
42-173-35738	OVINTIV USA INC.	Oil	43883
42-173-35739	LAREDO PETROLEUM, INC.	Oil	44477
42-173-35740	Apache Corporation	Oil	40247
42-173-35741	Apache Corporation	Oil	40247
42-173-35742	Apache Corporation	Oil	40247
42-173-35743	LAREDO PETROLEUM, INC.	Oil	43458
42-173-35744	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35745	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35746	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35747	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35748	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35749	RANGE PRODUCTION COMPANY
42-173-35750	RANGE PRODUCTION COMPANY
42-173-35751	RANGE PRODUCTION COMPANY
42-173-35752	Apache Corporation	Oil	39105
42-173-35753	DIAMONDBACK E&P LLC	Oil	40428
42-173-35754	Apache Corporation	Oil	39105
42-173-35755	Apache Corporation	Oil	39105
42-173-35756	Apache Corporation	Oil	39105
42-173-35757	TRILOGY OPERATING, INC.	Oil	51385
42-173-35758	OXY USA INC.	Oil	39670
42-173-35759	STANOLIND PRODUCTION LLC	Oil	43657
42-173-35760	RANGE PRODUCTION COMPANY
42-173-35761	DIAMONDBACK E&P LLC	Oil	41657
42-173-35762	DIAMONDBACK E&P LLC	Oil	44680
42-173-35763	PARSLEY ENERGY OPERATIONS, LLC	Oil	45260
42-173-35764	CONOCOPHILLIPS COMPANY
42-173-35765	LAREDO PETROLEUM, INC.	Oil	45582
42-173-35766	Citation Oil & Gas Corp.	Oil	44961
42-173-35767	Citation Oil & Gas Corp.	Oil	44961
42-173-35768	CROWNQUEST OPERATING, LLC	Oil	44557
42-173-35769	CROWNQUEST OPERATING, LLC	Oil	45170
42-173-35770	Apache Corporation	Oil	41194
42-173-35771	BREITBURN OPERATING L.P.	Oil	32512
42-173-35772	Apache Corporation	Oil	41194
42-173-35773	PARSLEY ENERGY OPERATIONS, LLC	Oil	44333
42-173-35774	CROWNQUEST OPERATING, LLC	Oil	45170
42-173-35775	LAREDO PETROLEUM, INC.	Oil	45447
42-173-35776	PARSLEY ENERGY OPERATIONS, LLC	Oil	43373
42-173-35777	COG OPERATING LLC	Oil	38162
42-173-35778	COG OPERATING LLC	Oil	44546
42-173-35779	COG OPERATING LLC	Oil	41205
42-173-35780	LAREDO PETROLEUM, INC.	Oil	43960
42-173-35781	LAREDO PETROLEUM, INC.	Oil	44113
42-173-35782	LAREDO PETROLEUM, INC.
42-173-35783	Apache Corporation	Oil	40816
42-173-35784	Apache Corporation
42-173-35785	RP OPERATING, L.L.C.	Oil	43694
42-173-35786	Apache Corporation	Oil	40475
42-173-35787	Apache Corporation	Oil	41708
42-173-35788	LAREDO PETROLEUM, INC.	Oil	44736
42-173-35789	DIAMONDBACK E&P LLC	Oil	40428
42-173-35790	DIAMONDBACK E&P LLC	Oil	40428
42-173-35791	DIAMONDBACK E&P LLC	Oil	40428
42-173-35792	NGL WATER SOLUTIONS PERMIAN, LLC	Oil	45763
42-173-35793	DIAMONDBACK E&P LLC	Oil	39991
42-173-35794	DIAMONDBACK E&P LLC	Oil	44684
42-173-35795	DIAMONDBACK E&P LLC	Oil	40391
42-173-35796	ENERGEN RESOURCES CORPORATION
42-173-35797	DIAMONDBACK E&P LLC	Oil	27874
42-173-35798	DIAMONDBACK E&P LLC	Oil	27874
42-173-35799	DIAMONDBACK E&P LLC	Oil	27874
42-173-35800	DIAMONDBACK E&P LLC	Oil	27874
42-173-35801	ENERGEN RESOURCES CORPORATION
42-173-35802	CROWNQUEST OPERATING, LLC	Oil	42443
42-173-35803	DIAMONDBACK E&P LLC	Oil	40428
42-173-35804	DIAMONDBACK E&P LLC	Oil	43158
42-173-35805	DIAMONDBACK E&P LLC	Oil	41855
42-173-35806	SMC OIL & GAS, INC.	Oil	44090
42-173-35807	LAREDO PETROLEUM, INC.	Oil	41445
42-173-35808	ENERGEN RESOURCES CORPORATION
42-173-35809	DIAMONDBACK E&P LLC	Oil	42055
42-173-35810	ENERGEN RESOURCES CORPORATION
42-173-35811	ENERGEN RESOURCES CORPORATION
42-173-35812	DIAMONDBACK E&P LLC	Oil	39445
42-173-35813	DIAMONDBACK E&P LLC	Oil	44163
42-173-35814	DIAMONDBACK E&P LLC	Oil	40428
42-173-35815	ENERGEN RESOURCES CORPORATION
42-173-35816	MDC TEXAS OPERATOR LLC	Oil	42126
42-173-35817	ENERGEN RESOURCES CORPORATION
42-173-35818	COG OPERATING LLC	Oil	44839
42-173-35819	Apache Corporation	Oil	43633
42-173-35820	LAREDO PETROLEUM, INC.	Oil	43729
42-173-35821	ENERGEN RESOURCES CORPORATION
42-173-35822	PARSLEY ENERGY OPERATIONS, LLC	Oil	44962
42-173-35823	DIAMONDBACK E&P LLC	Oil	38169
42-173-35824	ENERGEN RESOURCES CORPORATION
42-173-35825	DIAMONDBACK E&P LLC	Oil	40428
42-173-35826	DIAMONDBACK E&P LLC	Oil	40428
42-173-35827	ENERGEN RESOURCES CORPORATION
42-173-35828	ENERGEN RESOURCES CORPORATION
42-173-35829	ENERGEN RESOURCES CORPORATION
42-173-35830	DIAMONDBACK E&P LLC	Oil	39445
42-173-35831	DIAMONDBACK E&P LLC	Oil	44163
42-173-35832	LAREDO PETROLEUM, INC.	Oil	45507
42-173-35833	TRILOGY OPERATING, INC.	Oil	51100
42-173-35834	DIAMONDBACK E&P LLC	Oil	43726
42-173-35835	DIAMONDBACK E&P LLC	Oil	43726
42-173-35836	ENERGEN RESOURCES CORPORATION
42-173-35837	DIAMONDBACK E&P LLC	Oil	40428
42-173-35838	ENERGEN RESOURCES CORPORATION
42-173-35839	ENERGEN RESOURCES CORPORATION
42-173-35840	MCCLURE OIL COMPANY, INC.	Oil	41449
42-173-35841	Apache Corporation	Oil	44726
42-173-35842	ENERGEN RESOURCES CORPORATION
42-173-35843	ENERGEN RESOURCES CORPORATION
42-173-35844	ENERGEN RESOURCES CORPORATION
42-173-35845	DIAMONDBACK E&P LLC	Oil	45051
42-173-35846	PIONEER NATURAL RES. USA, INC.	Oil	39571
42-173-35847	SMC OIL & GAS, INC.	Oil	44776
42-173-35848	LAREDO PETROLEUM, INC.	Oil	43545
42-173-35849	SOUTHWEST ROYALTIES, INC.	Oil	39363
42-173-35850	Apache Corporation	Oil	40294
42-173-35851	LAREDO PETROLEUM, INC.	Oil	43115
42-173-35852	OVINTIV USA INC.	Oil	22750
42-173-35853	LAREDO PETROLEUM, INC.	Oil	44571
42-173-35854	LAREDO PETROLEUM, INC.	Oil	43142
42-173-35855	COG OPERATING LLC	Oil	44558
42-173-35856	PIONEER NATURAL RES. USA, INC.	Oil	42640
42-173-35857	Apache Corporation	Oil	40051
42-173-35858	COG OPERATING LLC	Oil	44645
42-173-35859	Apache Corporation	Oil	40051
42-173-35860	Apache Corporation	Oil	42701
42-173-35861	Apache Corporation	Oil	42701
42-173-35862	MCCLURE OIL COMPANY, INC.
42-173-35863	MIDENERGY OPERATING, LLC	Oil	43853
42-173-35864	TRILOGY OPERATING, INC.	Oil	51315
42-173-35865	OXY USA INC.	Oil	43791
42-173-35866	PIONEER NATURAL RES. USA, INC.	Oil	41379
42-173-35867	PIONEER NATURAL RES. USA, INC.	Oil	41379
42-173-35868	QUANTUM RESOURCES MANAGEMENT,LLC
42-173-35869	BREITBURN OPERATING L.P.	Gas	288412
42-173-35870	COG OPERATING LLC	Oil	41832
42-173-35871	DIAMONDBACK E&P LLC	Oil	43318
42-173-35872	PIONEER NATURAL RES. USA, INC.	Oil	41379
42-173-35873	MCCLURE OIL COMPANY, INC.	Oil	43987
42-173-35874	LAREDO PETROLEUM, INC.	Oil	41632
42-173-35875	MDC TEXAS OPERATOR LLC	Oil	44919
42-173-35876	PARSLEY ENERGY OPERATIONS, LLC	Oil	43252
42-173-35877	OXY USA INC.	Oil	23331
42-173-35878	OXY USA INC.	Oil	23331
42-173-35879	Apache Corporation	Oil	41707
42-173-35880	Apache Corporation	Oil	41707
42-173-35881	Apache Corporation	Oil	43771
42-173-35882	MCCLURE OIL COMPANY, INC.	Oil	45038
42-173-35883	OVINTIV USA INC.	Oil	35666
42-173-35884	PARSLEY ENERGY OPERATIONS, LLC	Oil	44984
42-173-35885	PARSLEY ENERGY OPERATIONS, LLC	Oil	44193
42-173-35886	Apache Corporation	Oil	44599
42-173-35887	Apache Corporation	Oil	44599
42-173-35888	LAREDO PETROLEUM, INC.	Oil	45493
42-173-35889	PIONEER NATURAL RES. USA, INC.	Oil	40860
42-173-35890	Apache Corporation	Oil	40475
42-173-35891	COG OPERATING LLC	Oil	44645
42-173-35892	DIAMONDBACK E&P LLC	Oil	45851
42-173-35893	Apache Corporation	Oil	43363
42-173-35894	COG OPERATING LLC	Oil	37789
42-173-35895	TRILOGY OPERATING, INC.	Oil	44618
42-173-35896	Apache Corporation	Oil	41618
42-173-35897	BREITBURN OPERATING L.P.	Oil	29956
42-173-35898	Apache Corporation	Oil	40475
42-173-35899	CROWNQUEST OPERATING, LLC	Oil	44939
42-173-35900	DIAMONDBACK E&P LLC	Oil	23237
42-173-35901	Citation Oil & Gas Corp.	Oil	45619
42-173-35902	PIONEER NATURAL RES. USA, INC.	Oil	43037
42-173-35903	Apache Corporation	Oil	43624
42-173-35904	Apache Corporation	Oil	44335
42-173-35905	MCCLURE OIL COMPANY, INC.	Oil	41449
42-173-35906	CROWNQUEST OPERATING, LLC	Oil	44104
42-173-35907	PARSLEY ENERGY OPERATIONS, LLC	Oil	24135
42-173-35908	LAREDO PETROLEUM, INC.	Oil	44026
42-173-35909	PIONEER NATURAL RES. USA, INC.	Oil	38141
42-173-35910	PIONEER NATURAL RES. USA, INC.	Oil	45034
42-173-35911	PIONEER NATURAL RES. USA, INC.	Oil	45555
42-173-35912	Apache Corporation
42-173-35913	Apache Corporation	Oil	46046
42-173-35914	LAREDO PETROLEUM, INC.	Oil	17825
42-173-35915	CROWNQUEST OPERATING, LLC	Oil	44103
42-173-35916	CROWNQUEST OPERATING, LLC	Oil	43924
42-173-35917	COG OPERATING LLC	Oil	41832
42-173-35918	CROWNQUEST OPERATING, LLC	Oil	43998
42-173-35919	OXY USA INC.	Oil	39670
42-173-35920	OVINTIV USA INC.	Oil	35712
42-173-35921	LAREDO PETROLEUM, INC.	Oil	39049
42-173-35922	PARSLEY ENERGY OPERATIONS, LLC	Oil	44193
42-173-35923	THOMPSON, J. CLEO
42-173-35924	Apache Corporation	Oil	44599
42-173-35925	Apache Corporation
42-173-35926	OVINTIV USA INC.	Oil	44451
42-173-35927	PIONEER NATURAL RES. USA, INC.	Oil	44903
42-173-35928	LAREDO PETROLEUM, INC.	Oil	43545
42-173-35929	Apache Corporation	Oil	39686
42-173-35930	Apache Corporation	Oil	40247
42-173-35931	Apache Corporation	Oil	40247
42-173-35932	LAREDO PETROLEUM, INC.	Oil	41976
42-173-35933	Apache Corporation	Oil	40247
42-173-35934	PIONEER NATURAL RES. USA, INC.	Oil	41423
42-173-35935	PIONEER NATURAL RES. USA, INC.	Oil	39512
42-173-35936	THREE RIVERS OPERATING CO II LLC
42-173-35937	PARSLEY ENERGY OPERATIONS, LLC	Oil	24085
42-173-35938	Apache Corporation
42-173-35939	OVINTIV USA INC.	Oil	40958
42-173-35940	PIONEER NATURAL RES. USA, INC.	Oil	39951
42-173-35941	LAREDO PETROLEUM, INC.	Oil	45688
42-173-35942	Apache Corporation	Oil	45901
42-173-35943	LAREDO PETROLEUM, INC.	Oil	45688
42-173-35944	THREE RIVERS OPERATING CO II LLC
42-173-35945	DIAMONDBACK E&P LLC	Oil	44544
42-173-35946	Apache Corporation	Oil	43856
42-173-35947	Apache Corporation	Oil	43856
42-173-35948	SMC OIL & GAS, INC.	Oil	45400
42-173-35949	COG OPERATING LLC	Oil	44524
42-173-35950	CROWNQUEST OPERATING, LLC	Oil	44715
42-173-35951	LAREDO PETROLEUM, INC.	Oil	17567
42-173-35952	OVINTIV USA INC.	Oil	39167
42-173-35953	Apache Corporation	Oil	40247
42-173-35954	DIAMONDBACK E&P LLC	Oil	46378
42-173-35955	Apache Corporation
42-173-35956	Apache Corporation	Oil	40816
42-173-35957	OVINTIV USA INC.	Oil	44849
42-173-35958	Apache Corporation	Oil	40816
42-173-35959	Apache Corporation
42-173-35960	SMC OIL & GAS, INC.	Oil	45838
42-173-35961	OXY USA INC.	Oil	45708
42-173-35962	OXY USA INC.	Oil	45708
42-173-35963	Apache Corporation	Oil	41618
42-173-35964	COG OPERATING LLC	Oil	41832
42-173-35965	COG OPERATING LLC	Oil	44645
42-173-35966	COG OPERATING LLC	Oil	37789
42-173-35967	OVINTIV USA INC.	Oil	46806
42-173-35968	CROWNQUEST OPERATING, LLC	Oil	44580
42-173-35969	PARSLEY ENERGY OPERATIONS, LLC	Oil	43252
42-173-35970	DIAMONDBACK E&P LLC	Oil	45622
42-173-35971	OVINTIV USA INC.	Oil	43883
42-173-35972	Apache Corporation	Oil	39255
42-173-35973	LAREDO PETROLEUM, INC.	Oil	43729
42-173-35974	LAREDO PETROLEUM, INC.	Oil	45086
42-173-35976	Apache Corporation
42-173-35977	PIONEER NATURAL RES. USA, INC.	Oil	39405
42-173-35978	PIONEER NATURAL RES. USA, INC.	Oil	40529
42-173-35979	Apache Corporation	Oil	40247
42-173-35980	Apache Corporation	Oil	40247
42-173-35981	LAREDO PETROLEUM, INC.
42-173-35982	DIAMONDBACK E&P LLC	Oil	45051
42-173-35983	LAREDO PETROLEUM, INC.	Oil	43463
42-173-35984	FALFURRIAS OPERATING COMPANY,LLC	Oil	43471
42-173-35985	PIONEER NATURAL RES. USA, INC.	Oil	41086
42-173-35986	OVINTIV USA INC.	Oil	44158
42-173-35987	ENDEAVOR ENERGY RESOURCES L.P.	Oil	44813
42-173-35988	MWS PRODUCING, INC.
42-173-35989	Apache Corporation	Oil	43333
42-173-35990	PIONEER NATURAL RES. USA, INC.	Oil	38388
42-173-35991	Apache Corporation	Oil	40146
42-173-35992	Apache Corporation	Oil	40146
42-173-35993	LAREDO PETROLEUM, INC.	Oil	42934
42-173-35994	PIONEER NATURAL RES. USA, INC.
42-173-35995	PIONEER NATURAL RES. USA, INC.	Oil	46618
42-173-35996	PIONEER NATURAL RES. USA, INC.
42-173-35997	PIONEER NATURAL RES. USA, INC.	Oil	46623
42-173-35998	LAREDO PETROLEUM, INC.	Oil	44943
42-173-35999	Apache Corporation	Oil	44057
42-173-36000	Apache Corporation	Oil	44057
42-173-36001	Apache Corporation	Oil	45311
42-173-36002	LAREDO PETROLEUM, INC.	Oil	44541
42-173-36003	LAREDO PETROLEUM, INC.
42-173-36004	BURLESON PETROLEUM, INC.	Oil	53368
42-173-36005	EQT PRODUCTION TEXAS, LLC	Oil	43657
42-173-36006	LAREDO PETROLEUM, INC.	Oil	45118
42-173-36007	PARSLEY ENERGY OPERATIONS, LLC	Oil	44065
42-173-36008	MDC TEXAS OPERATOR LLC	Oil	42126
42-173-36009	HIGH ROLLER WELLS, L.L.C.
42-173-36010	PIONEER NATURAL RES. USA, INC.	Oil	39973
42-173-36011	LAREDO PETROLEUM, INC.	Oil	44010
42-173-36012	BREITBURN OPERATING L.P.	Oil	32512
42-173-36013	LAREDO PETROLEUM, INC.	Oil	40834
42-173-36014	COG OPERATING LLC	Oil	45152
42-173-36015	STANOLIND PRODUCTION LLC	Oil	43657
42-173-36016	Apache Corporation
42-173-36017	PIONEER NATURAL RES. USA, INC.	Oil	42524
42-173-36018	Apache Corporation	Oil	40478
42-173-36019	TRILOGY OPERATING, INC.	Oil	51270
42-173-36020	OXY USA INC.	Oil	44545
42-173-36021	Apache Corporation	Oil	42602
42-173-36022	Apache Corporation	Oil	41197
42-173-36023	Apache Corporation	Oil	40210
42-173-36024	Apache Corporation	Oil	40210
42-173-36025	Apache Corporation	Oil	44915
42-173-36026	PIONEER NATURAL RES. USA, INC.	Oil	41853
42-173-36027	BREITBURN OPERATING L.P.	Oil	32512
42-173-36028	Apache Corporation	Oil	45418
42-173-36029	Apache Corporation	Oil	45418
42-173-36030	Apache Corporation	Oil	41913
42-173-36031	OVINTIV USA INC.	Oil	35712
42-173-36032	OXY USA INC.	Oil	44545
42-173-36033	THOMPSON, J. CLEO
42-173-36034	Apache Corporation	Oil	44929
42-173-36035	OXY USA INC.	Oil	40056
42-173-36036	OVINTIV USA INC.	Oil	43883
42-173-36037	CROWNQUEST OPERATING, LLC	Oil	45689
42-173-36038	OXY USA INC.	Oil	50106
42-173-36039	OVINTIV USA INC.	Oil	44451
42-173-36040	Apache Corporation	Oil	40816
42-173-36041	Apache Corporation	Oil	43633
42-173-36042	Apache Corporation	Oil	43633
42-173-36043	Apache Corporation	Oil	43633
42-173-36044	Apache Corporation	Oil	44726
42-173-36045	Apache Corporation	Oil	44726
42-173-36046	Apache Corporation	Oil	45896
42-173-36047	Apache Corporation	Oil	45896
42-173-36048	MID-STATES OPERATING COMPANY	Oil	46900
42-173-36049	MID-STATES OPERATING COMPANY
42-173-36050	MID-STATES OPERATING COMPANY
42-173-36051	LAREDO PETROLEUM, INC.	Oil	17795
42-173-36052	CHEVRON U. S. A. INC.	Oil	45190
42-173-36053	CHEVRON U. S. A. INC.	Oil	45190
42-173-36054	CHEVRON U. S. A. INC.	Oil	45190
42-173-36055	CHEVRON U. S. A. INC.	Oil	45190
42-173-36056	CHEVRON U. S. A. INC.	Oil	45190
42-173-36057	CHEVRON U. S. A. INC.	Oil	45190
42-173-36058	CHEVRON U. S. A. INC.	Oil	45190
42-173-36059	CHEVRON U. S. A. INC.	Oil	45190
42-173-36060	OXY USA INC.	Oil	50106
42-173-36061	HANNATHON PETROLEUM, LLC	Oil	45656
42-173-36062	HANNATHON PETROLEUM, LLC	Oil	46291
42-173-36063	OVINTIV USA INC.	Oil	40958
42-173-36064	PARSLEY ENERGY OPERATIONS, LLC	Oil	44065
42-173-36065	PARSLEY ENERGY OPERATIONS, LLC	Oil	44065
42-173-36066	PIONEER NATURAL RES. USA, INC.	Oil	40538
42-173-36067	PIONEER NATURAL RES. USA, INC.	Oil	40090
42-173-36068	DIAMONDBACK E&P LLC	Oil	44730
42-173-36069	OXY USA INC.	Oil	42763
42-173-36070	Apache Corporation	Oil	41230
42-173-36071	BURLESON PETROLEUM, INC.	Oil	45408
42-173-36072	Apache Corporation	Oil	41618
42-173-36073	LAREDO PETROLEUM, INC.	Oil	45770
42-173-36074	LAREDO PETROLEUM, INC.	Oil	43115
42-173-36075	DIAMONDBACK E&P LLC	Oil	45907
42-173-36076	LAREDO PETROLEUM, INC.
42-173-36077	OVINTIV USA INC.	Oil	43883
42-173-36078	FDL OPERATING, LLC	Oil	41062
42-173-36079	FDL OPERATING, LLC	Oil	41062
42-173-36080	Apache Corporation	Oil	45057
42-173-36081	Apache Corporation	Oil	41778
42-173-36082	ENCANA OIL & GAS(USA) INC.
42-173-36083	Apache Corporation	Oil	43624
42-173-36084	FDL OPERATING, LLC	Oil	41062
42-173-36085	OVINTIV USA INC.	Oil	40873
42-173-36086	LAREDO PETROLEUM, INC.	Oil	45158
42-173-36087	Apache Corporation	Oil	43633
42-173-36088	LAREDO PETROLEUM, INC.	Oil	52921
42-173-36089	Apache Corporation	Oil	45652
42-173-36090	Apache Corporation	Oil	44881
42-173-36091	OVINTIV USA INC.	Oil	43286
42-173-36092	TRILOGY OPERATING, INC.	Oil	44280
42-173-36093	PIONEER NATURAL RES. USA, INC.	Oil	38192
42-173-36094	Apache Corporation	Oil	43138
42-173-36095	PIONEER NATURAL RES. USA, INC.	Oil	38141
42-173-36096	ATHLON FE OPERATING LLC
42-173-36097	ATHLON FE OPERATING LLC
42-173-36098	ATHLON FE OPERATING LLC
42-173-36099	FDL OPERATING, LLC	Oil	41062
42-173-36100	FDL OPERATING, LLC	Oil	41062
42-173-36101	LAREDO PETROLEUM, INC.	Oil	44901
42-173-36102	DIAMONDBACK E&P LLC	Oil	45908
42-173-36103	DIAMONDBACK E&P LLC	Oil	45517
42-173-36104	MCCLURE OIL COMPANY, INC.	Oil	41449
42-173-36105	OVINTIV USA INC.	Oil	46744
42-173-36107	ATHLON FE OPERATING LLC
42-173-36108	Apache Corporation	Oil	45547
42-173-36110	OXY USA INC.	Oil	43437
42-173-36111	OXY USA INC.	Oil	43770
42-173-36112	TRILOGY OPERATING, INC.	Oil	45631
42-173-36113	Apache Corporation	Oil	40246
42-173-36114	Apache Corporation	Oil	40246
42-173-36115	MCCLURE OIL COMPANY, INC.	Oil	41449
42-173-36116	MCCLURE OIL COMPANY, INC.
42-173-36117	PIONEER NATURAL RES. USA, INC.	Oil	38520
42-173-36118	Apache Corporation	Oil	40474
42-173-36119	Apache Corporation	Oil	40602
42-173-36120	CROWNQUEST OPERATING, LLC	Oil	44580
42-173-36121	PIONEER NATURAL RES. USA, INC.	Oil	42081
42-173-36122	PIONEER NATURAL RES. USA, INC.	Oil	41379
42-173-36123	PIONEER NATURAL RES. USA, INC.	Oil	41944
42-173-36124	ATHLON FE OPERATING LLC
42-173-36125	ATHLON FE OPERATING LLC
42-173-36126	LAREDO PETROLEUM, INC.	Oil	45125
42-173-36127	LAREDO PETROLEUM, INC.	Oil	39049
42-173-36128	Apache Corporation	Oil	40684
42-173-36129	Apache Corporation	Oil	43624
42-173-36130	MINERAL TECHNOLOGIES, INC.	Oil	45552
42-173-36131	SHERIDAN PRODUCTION COMPANY, LLC
42-173-36132	SHERIDAN PRODUCTION COMPANY, LLC
42-173-36133	SHERIDAN PRODUCTION COMPANY, LLC
42-173-36134	FDL OPERATING, LLC	Oil	41062
42-173-36135	FDL OPERATING, LLC	Oil	41062
42-173-36136	FDL OPERATING, LLC	Oil	41062
42-173-36137	CHEVRON U. S. A. INC.	Oil	45800
42-173-36138	MDC TEXAS OPERATOR LLC	Oil	43039
42-173-36139	LAREDO PETROLEUM, INC.	Oil	39051
42-173-36140	CHEVRON U. S. A. INC.	Oil	45800
42-173-36141	CHEVRON U. S. A. INC.
42-173-36142	CHEVRON U. S. A. INC.	Oil	45800
42-173-36143	CHEVRON U. S. A. INC.	Oil	45800
42-173-36144	CHEVRON U. S. A. INC.	Oil	45800
42-173-36145	CHEVRON U. S. A. INC.	Oil	45800
42-173-36146	CHEVRON U. S. A. INC.	Oil	45800
42-173-36147	LAREDO PETROLEUM, INC.	Oil	45880
42-173-36148	LAREDO PETROLEUM, INC.	Oil	40834
42-173-36149	PIONEER NATURAL RES. USA, INC.	Oil	39194
42-173-36150	LAREDO PETROLEUM, INC.	Oil	39332
42-173-36151	LAREDO PETROLEUM, INC.	Oil	45771
42-173-36152	LAREDO PETROLEUM, INC.	Oil	45771
42-173-36153	Apache Corporation	Oil	41229
42-173-36154	Apache Corporation	Oil	39884
42-173-36155	Apache Corporation	Oil	40247
42-173-36156	Apache Corporation	Oil	44335
42-173-36157	NADEL AND GUSSMAN PERMIAN,L.L.C.
42-173-36158	MINERAL TECHNOLOGIES, INC.	Oil	44526
42-173-36159	Apache Corporation	Oil	40243
42-173-36160	LAREDO PETROLEUM, INC.	Oil	17825
42-173-36161	LAREDO PETROLEUM, INC.	Oil	40834
42-173-36162	LAREDO PETROLEUM, INC.	Oil	40834
42-173-36163	Apache Corporation	Oil	45968
42-173-36164	Apache Corporation	Oil	40247
42-173-36165	Apache Corporation	Oil	45971
42-173-36166	Apache Corporation	Oil	45968
42-173-36167	TRILOGY OPERATING, INC.	Oil	44230
42-173-36168	Apache Corporation	Oil	43312
42-173-36169	Apache Corporation	Oil	39686
42-173-36170	Apache Corporation	Oil	43312
42-173-36171	LAREDO PETROLEUM, INC.	Oil	45774
42-173-36172	LAREDO PETROLEUM, INC.	Oil	45774
42-173-36173	LAREDO PETROLEUM, INC.	Oil	45774
42-173-36174	TEXAS SWD CO., INC.	Oil	46836
42-173-36175	Apache Corporation	Oil	43991
42-173-36176	OVINTIV USA INC.	Oil	40958
42-173-36177	ATLAS PL MID-CONT. WESTTEX, LLC
42-173-36178	ATLAS PL MID-CONT. WESTTEX, LLC
42-173-36179	LAREDO PETROLEUM, INC.	Oil	43115
42-173-36180	Apache Corporation	Oil	45983
42-173-36181	LAREDO PETROLEUM, INC.	Oil	40798
42-173-36182	Apache Corporation	Oil	45288
42-173-36183	Apache Corporation	Oil	45288
42-173-36184	Apache Corporation	Oil	43909
42-173-36185	MIDENERGY OPERATING, LLC	Oil	43853
42-173-36186	DIAMONDBACK E&P LLC	Oil	45795
42-173-36187	LAREDO PETROLEUM, INC.	Oil	44571
42-173-36188	DIAMONDBACK E&P LLC	Oil	46226
42-173-36189	COG OPERATING LLC	Oil	37789
42-173-36190	OXY USA INC.	Oil	43791
42-173-36191	CROWNQUEST OPERATING, LLC	Oil	41407
42-173-36192	CROWNQUEST OPERATING, LLC	Oil	45107
42-173-36193	CROWNQUEST OPERATING, LLC	Oil	45107
42-173-36194	CROWNQUEST OPERATING, LLC	Oil	44557
42-173-36195	COG OPERATING LLC	Oil	37789
42-173-36196	RP OPERATING, L.L.C.	Oil	43694
42-173-36197	DIAMONDBACK E&P LLC	Oil	46120
42-173-36198	LAREDO PETROLEUM, INC.	Oil	40907
42-173-36199	PIONEER NATURAL RES. USA, INC.	Oil	45034
42-173-36200	Citation Oil & Gas Corp.	Oil	41260
42-173-36201	CHEVRON U. S. A. INC.	Oil	45693
42-173-36202	LAREDO PETROLEUM, INC.	Oil	41445
42-173-36203	PIONEER NATURAL RES. USA, INC.	Oil	44903
42-173-36204	OXY USA INC.	Oil	50106
42-173-36205	PIONEER NATURAL RES. USA, INC.	Oil	45555
42-173-36206	SMC OIL & GAS, INC.	Oil	45539
42-173-36207	ATHLON FE OPERATING LLC
42-173-36208	DIAMONDBACK E&P LLC	Oil	45623
42-173-36209	OVINTIV USA INC.	Oil	44451
42-173-36210	DIAMONDBACK E&P LLC	Oil	45795
42-173-36211	CROWNQUEST OPERATING, LLC	Oil	43924
42-173-36212	PIONEER NATURAL RES. USA, INC.	Oil	41086
42-173-36213	OXY USA INC.	Oil	45708
42-173-36214	Apache Corporation	Oil	44920
42-173-36215	PIONEER NATURAL RES. USA, INC.	Oil	41859
42-173-36216	OXY USA INC.	Oil	39670
42-173-36217	LAREDO PETROLEUM, INC.	Oil	39243
42-173-36218	LAREDO PETROLEUM, INC.	Oil	45104
42-173-36219	DIAMONDBACK E&P LLC	Oil	46120
42-173-36220	DIAMONDBACK E&P LLC	Oil	46226
42-173-36221	LAREDO PETROLEUM, INC.	Oil	40834
42-173-36222	Apache Corporation	Oil	46022
42-173-36223	DIAMONDBACK E&P LLC	Oil	44544
42-173-36224	PIONEER NATURAL RES. USA, INC.	Oil	38472
42-173-36225	ENERGEN RESOURCES CORPORATION
42-173-36226	DIAMONDBACK E&P LLC	Oil	46319
42-173-36227	DIAMONDBACK E&P LLC	Oil	42127
42-173-36228	DIAMONDBACK E&P LLC	Oil	39953
42-173-36229	DIAMONDBACK E&P LLC	Oil	43732
42-173-36230	DIAMONDBACK E&P LLC	Oil	39445
42-173-36231	PIONEER NATURAL RES. USA, INC.	Oil	42578
42-173-36232	COG OPERATING LLC	Oil	45069
42-173-36233	DIAMONDBACK E&P LLC	Oil	46157
42-173-36234	DIAMONDBACK E&P LLC	Oil	44452
42-173-36235	LAREDO PETROLEUM, INC.	Oil	45125
42-173-36236	COG OPERATING LLC	Oil	46753
42-173-36237	DIAMONDBACK E&P LLC	Oil	46694
42-173-36238	COG OPERATING LLC	Oil	45068
42-173-36239	Apache Corporation	Oil	45850
42-173-36240	Apache Corporation	Oil	43624
42-173-36241	Apache Corporation	Oil	41091
42-173-36242	Apache Corporation	Oil	40144
42-173-36243	Apache Corporation	Oil	40247
42-173-36244	PIONEER NATURAL RES. USA, INC.	Oil	38142
42-173-36245	PIONEER NATURAL RES. USA, INC.	Oil	45402
42-173-36246	PIONEER NATURAL RES. USA, INC.	Oil	39524
42-173-36247	OVINTIV USA INC.	Oil	43883
42-173-36248	DIAMONDBACK E&P LLC	Oil	44680
42-173-36249	DIAMONDBACK E&P LLC	Oil	44680
42-173-36250	DIAMONDBACK E&P LLC	Oil	44680
42-173-36251	DIAMONDBACK E&P LLC	Oil	45622
42-173-36252	DIAMONDBACK E&P LLC	Oil	44332
42-173-36253	COG OPERATING LLC	Oil	44645
42-173-36254	MDC TEXAS OPERATOR LLC	Oil	44461
42-173-36255	DIAMONDBACK E&P LLC	Oil	39445
42-173-36256	LAREDO PETROLEUM, INC.	Oil	45158
42-173-36257	LAREDO PETROLEUM, INC.	Oil	45366
42-173-36258	LAREDO PETROLEUM, INC.
42-173-36259	BERRY OIL COMP.
42-173-36260	ROBERTSON RESOURCES, INC.	Oil	46040
42-173-36261	STANOLIND PRODUCTION LLC	Oil	43657
42-173-36262	MDC TEXAS OPERATOR LLC	Oil	44919
42-173-36263	DIAMONDBACK E&P LLC	Oil	46772
42-173-36267	DE3 OPERATING LLC	Oil	41849
42-173-36268	DE3 OPERATING LLC	Oil	41849
42-173-36269	Apache Corporation
42-173-36270	COG OPERATING LLC	Oil	37789
42-173-36271	Apache Corporation
42-173-36272	DIAMONDBACK E&P LLC	Oil	46484
42-173-36273	DIAMONDBACK E&P LLC	Oil	46484
42-173-36274	LAREDO PETROLEUM, INC.	Oil	17825
42-173-36275	LAREDO PETROLEUM, INC.	Oil	40571
42-173-36276	LAREDO PETROLEUM, INC.	Oil	43807
42-173-36277	LAREDO PETROLEUM, INC.	Oil	44943
42-173-36278	LAREDO PETROLEUM, INC.	Oil	51410
42-173-36279	LAREDO PETROLEUM, INC.	Oil	44571
42-173-36280	LAREDO PETROLEUM, INC.	Oil	43729
42-173-36281	DIAMONDBACK E&P LLC	Oil	46413
42-173-36282	LAREDO PETROLEUM, INC.	Oil	42872
42-173-36283	OVINTIV USA INC.	Oil	44158
42-173-36285	DIAMONDBACK E&P LLC	Oil	46366
42-173-36286	Apache Corporation	Oil	40241
42-173-36290	LAREDO PETROLEUM, INC.	Oil	45138
42-173-36291	LAREDO PETROLEUM, INC.	Oil	45138
42-173-36292	DIAMONDBACK E&P LLC	Oil	45982
42-173-36293	Apache Corporation	Oil	40241
42-173-36294	CROWNQUEST OPERATING, LLC	Oil	44939
42-173-36295	CROWNQUEST OPERATING, LLC	Oil	44330
42-173-36296	Apache Corporation	Oil	40241
42-173-36297	CROWNQUEST OPERATING, LLC	Oil	45266
42-173-36298	Apache Corporation	Oil	43633
42-173-36299	Apache Corporation	Oil	46436
42-173-36300	OVINTIV USA INC.	Oil	41695
42-173-36301	CROWNQUEST OPERATING, LLC	Oil	43965
42-173-36302	CROWNQUEST OPERATING, LLC	Oil	43965
42-173-36303	Apache Corporation	Oil	45910
42-173-36304	CROWNQUEST OPERATING, LLC	Oil	44103
42-173-36305	ENERGEN RESOURCES CORPORATION	Oil	46558
42-173-36306	Apache Corporation
42-173-36307	Apache Corporation	Oil	45311
42-173-36308	Apache Corporation	Oil	44929
42-173-36309	COG OPERATING LLC	Oil	37789
42-173-36310	PIONEER NATURAL RES. USA, INC.	Oil	46595
42-173-36311	BREITBURN OPERATING L.P.	Oil	32512
42-173-36312	DE3 OPERATING LLC	Oil	41849
42-173-36313	DIAMONDBACK E&P LLC	Oil	44181
42-173-36314	PIONEER NATURAL RES. USA, INC.	Oil	39194
42-173-36315	Apache Corporation	Oil	40602
42-173-36316	Apache Corporation	Oil	40602
42-173-36317	DIAMONDBACK E&P LLC	Oil	42165
42-173-36318	Apache Corporation	Oil	43771
42-173-36319	Apache Corporation	Oil	43624
42-173-36320	CROWNQUEST OPERATING, LLC	Oil	45257
42-173-36321	DIAMONDBACK E&P LLC	Oil	43158
42-173-36322	DIAMONDBACK E&P LLC	Oil	43499
42-173-36323	Apache Corporation	Oil	44057
42-173-36324	DIAMONDBACK E&P LLC	Oil	43499
42-173-36325	DIAMONDBACK E&P LLC	Oil	43865
42-173-36326	DIAMONDBACK E&P LLC	Oil	41683
42-173-36327	OVINTIV USA INC.	Oil	45489
42-173-36328	DIAMONDBACK E&P LLC	Oil	47173
42-173-36329	PIONEER NATURAL RES. USA, INC.	Oil	46595
42-173-36330	OVINTIV USA INC.	Oil	38718
42-173-36331	DIAMONDBACK E&P LLC	Oil	42592
42-173-36332	DIAMONDBACK E&P LLC	Oil	41855
42-173-36333	DIAMONDBACK E&P LLC	Oil	42342
42-173-36334	ENERGEN RESOURCES CORPORATION
42-173-36335	DIAMONDBACK E&P LLC	Oil	46337
42-173-36336	DIAMONDBACK E&P LLC	Oil	46503
42-173-36337	DIAMONDBACK E&P LLC	Oil	46221
42-173-36338	ENERGEN RESOURCES CORPORATION
42-173-36339	DIAMONDBACK E&P LLC	Oil	46337
42-173-36340	DIAMONDBACK E&P LLC	Oil	46503
42-173-36341	DIAMONDBACK E&P LLC	Oil	46221
42-173-36342	PARSLEY ENERGY OPERATIONS, LLC	Oil	43535
42-173-36343	Apache Corporation
42-173-36344	Apache Corporation	Oil	41948
42-173-36345	Apache Corporation	Oil	41708
42-173-36346	Apache Corporation
42-173-36347	Apache Corporation
42-173-36348	Citation Oil & Gas Corp.	Oil	41260
42-173-36349	LAREDO PETROLEUM, INC.	Oil	41381
42-173-36350	LAREDO PETROLEUM, INC.	Oil	40054
42-173-36351	PIONEER NATURAL RES. USA, INC.	Oil	39405
42-173-36352	Apache Corporation	Oil	40241
42-173-36353	DRACO ENERGY, INC.
42-173-36354	PIONEER NATURAL RES. USA, INC.	Oil	42606
42-173-36355	TRILOGY OPERATING, INC.	Oil	45631
42-173-36356	OVINTIV USA INC.	Oil	39617
42-173-36357	OVINTIV USA INC.	Oil	39617
42-173-36358	Apache Corporation	Oil	45311
42-173-36359	Apache Corporation	Oil	45311
42-173-36360	Apache Corporation	Oil	45904
42-173-36361	DIAMONDBACK E&P LLC	Oil	45474
42-173-36362	LAREDO PETROLEUM, INC.	Oil	46034
42-173-36363	LAREDO PETROLEUM, INC.	Oil	46034
42-173-36364	Apache Corporation	Oil	40144
42-173-36365	LAREDO PETROLEUM, INC.	Oil	46034
42-173-36366	Apache Corporation
42-173-36367	Apache Corporation
42-173-36368	Apache Corporation	Oil	41707
42-173-36369	CROWNQUEST OPERATING, LLC	Oil	25586
42-173-36370	COG OPERATING LLC	Oil	45162
42-173-36371	PARSLEY ENERGY OPERATIONS, LLC	Oil	42957
42-173-36372	SMC OIL & GAS, INC.	Oil	45252
42-173-36373	COG OPERATING LLC	Oil	44546
42-173-36374	COG OPERATING LLC	Oil	45162
42-173-36375	DIAMONDBACK E&P LLC	Oil	46319
42-173-36376	DIAMONDBACK E&P LLC	Oil	46273
42-173-36377	DIAMONDBACK E&P LLC	Oil	46312
42-173-36378	DIAMONDBACK E&P LLC	Oil	46353
42-173-36379	DIAMONDBACK E&P LLC	Oil	46273
42-173-36380	DIAMONDBACK E&P LLC	Oil	46353
42-173-36381	DIAMONDBACK E&P LLC	Oil	46312
42-173-36382	DIAMONDBACK E&P LLC	Oil	46834
42-173-36383	DIAMONDBACK E&P LLC	Oil	46834
42-173-36384	DIAMONDBACK E&P LLC	Oil	46587
42-173-36385	DIAMONDBACK E&P LLC	Oil	46587
42-173-36386	BLUESTEM ENERGY HOLDINGS, LLC
42-173-36387	LAREDO PETROLEUM, INC.	Oil	45691
42-173-36388	DIAMONDBACK E&P LLC	Oil	45474
42-173-36389	DIAMONDBACK E&P LLC	Oil	45474
42-173-36390	OXY USA INC.	Oil	43583
42-173-36391	DIAMONDBACK E&P LLC	Oil	46694
42-173-36392	DIAMONDBACK E&P LLC	Oil	44017
42-173-36393	CROWNQUEST OPERATING, LLC	Oil	45766
42-173-36394	OVINTIV USA INC.	Oil	45540
42-173-36395	DIAMONDBACK E&P LLC	Oil	46947
42-173-36396	OXY USA INC.	Oil	43770
42-173-36397	PARSLEY ENERGY OPERATIONS, LLC	Oil	40852
42-173-36398	PARSLEY ENERGY OPERATIONS, LLC	Oil	40852
42-173-36399	PARSLEY ENERGY OPERATIONS, LLC	Oil	40852
42-173-36400	CROWNQUEST OPERATING, LLC	Oil	45170
42-173-36401	PIONEER NATURAL RES. USA, INC.	Oil	38141
42-173-36402	DIAMONDBACK E&P LLC	Oil	43726
42-173-36403	DIAMONDBACK E&P LLC	Oil	43865
42-173-36404	DIAMONDBACK E&P LLC	Oil	43865
42-173-36405	DIAMONDBACK E&P LLC	Oil	43499
42-173-36406	DIAMONDBACK E&P LLC	Oil	46298
42-173-36407	DIAMONDBACK E&P LLC	Oil	46298
42-173-36408	DIAMONDBACK E&P LLC	Oil	43985
42-173-36409	DIAMONDBACK E&P LLC	Oil	43985
42-173-36410	LAREDO PETROLEUM, INC.	Oil	18935
42-173-36411	DIAMONDBACK E&P LLC	Oil	44086
42-173-36412	Apache Corporation	Oil	40247
42-173-36413	Apache Corporation	Oil	40247
42-173-36414	Apache Corporation	Oil	40247
42-173-36415	PIONEER NATURAL RES. USA, INC.	Oil	42546
42-173-36416	PIONEER NATURAL RES. USA, INC.	Oil	40258
42-173-36417	PIONEER NATURAL RES. USA, INC.	Oil	39512
42-173-36418	PIONEER NATURAL RES. USA, INC.	Oil	41086
42-173-36419	PIONEER NATURAL RES. USA, INC.	Oil	38472
42-173-36420	LAREDO PETROLEUM, INC.	Oil	45564
42-173-36421	DIAMONDBACK E&P LLC	Oil	46515
42-173-36422	DIAMONDBACK E&P LLC	Oil	46515
42-173-36423	DIAMONDBACK E&P LLC	Oil	46764
42-173-36424	CROWNQUEST OPERATING, LLC	Oil	45767
42-173-36425	LAREDO PETROLEUM, INC.	Oil	41077
42-173-36426	PARSLEY ENERGY OPERATIONS, LLC	Oil	42957
42-173-36427	PARSLEY ENERGY OPERATIONS, LLC	Oil	42957
42-173-36428	DIAMONDBACK E&P LLC	Oil	46764
42-173-36429	DIAMONDBACK E&P LLC	Oil	46265
42-173-36430	PIONEER NATURAL RES. USA, INC.	Oil	39571
42-173-36431	PIONEER NATURAL RES. USA, INC.	Oil	39973
42-173-36432	PIONEER NATURAL RES. USA, INC.	Oil	41859
42-173-36433	PIONEER NATURAL RES. USA, INC.	Oil	41944
42-173-36434	Apache Corporation	Oil	45904
42-173-36435	LAREDO PETROLEUM, INC.	Oil	43436
42-173-36436	OVINTIV USA INC.	Oil	42359
42-173-36437	ROBERTSON RESOURCES, INC.	Oil	46270
42-173-36438	DIAMONDBACK E&P LLC	Oil	46011
42-173-36439	MCCLURE OIL COMPANY, INC.	Oil	41963
42-173-36440	MCCLURE OIL COMPANY, INC.	Oil	43987
42-173-36441	MCCLURE OIL COMPANY, INC.	Oil	43987
42-173-36442	OXY USA INC.	Oil	45708
42-173-36443
42-173-36444	OVINTIV USA INC.	Oil	43883
42-173-36445	COG OPERATING LLC	Oil	37789
42-173-36446	COG OPERATING LLC	Oil	37789
42-173-36447	COG OPERATING LLC	Oil	37789
42-173-36448	OVINTIV USA INC.	Oil	42359
42-173-36449	CROWNQUEST OPERATING, LLC	Oil	44715
42-173-36450	COG OPERATING LLC	Oil	44839
42-173-36451	DIAMONDBACK E&P LLC	Oil	46265
42-173-36453	COG OPERATING LLC	Oil	22021
42-173-36454	Apache Corporation	Oil	40144
42-173-36455	Apache Corporation
42-173-36456	COG OPERATING LLC	Oil	37789
42-173-36457	COG OPERATING LLC	Oil	44558
42-173-36458	COG OPERATING LLC	Oil	37789
42-173-36459	CROWNQUEST OPERATING, LLC
42-173-36460	PIONEER NATURAL RES. USA, INC.	Oil	42646
42-173-36461	Apache Corporation	Oil	45418
42-173-36462	LAREDO PETROLEUM, INC.	Oil	45530
42-173-36463	LAREDO PETROLEUM, INC.	Oil	43115
42-173-36464	DIAMONDBACK E&P LLC	Oil	40095
42-173-36465	LAREDO PETROLEUM, INC.	Oil	45920
42-173-36466	LAREDO PETROLEUM, INC.	Oil	43115
42-173-36467	OVINTIV USA INC.	Oil	45911
42-173-36468	FDL OPERATING, LLC	Oil	41062
42-173-36469	Apache Corporation
42-173-36470	OVINTIV USA INC.	Oil	44451
42-173-36471	Apache Corporation	Oil	40144
42-173-36472	PIONEER NATURAL RES. USA, INC.	Oil	46623
42-173-36473	Apache Corporation
42-173-36474	LAREDO PETROLEUM, INC.	Oil	46045
42-173-36475	LAREDO PETROLEUM, INC.	Oil	46045
42-173-36476	LAREDO PETROLEUM, INC.	Oil	46045
42-173-36477	LAREDO PETROLEUM, INC.	Oil	45678
42-173-36478	LAREDO PETROLEUM, INC.	Oil	45679
42-173-36479	LAREDO PETROLEUM, INC.	Oil	46056
42-173-36480	PIONEER NATURAL RES. USA, INC.	Oil	39571
42-173-36481	PIONEER NATURAL RES. USA, INC.	Oil	42081
42-173-36482	OVINTIV USA INC.	Oil	44223
42-173-36483	OVINTIV USA INC.	Oil	39167
42-173-36484	PIONEER NATURAL RES. USA, INC.	Oil	42638
42-173-36485	OXY USA INC.	Oil	44545
42-173-36486	PIONEER NATURAL RES. USA, INC.	Oil	38686
42-173-36487	PIONEER NATURAL RES. USA, INC.	Oil	42646
42-173-36488	PIONEER NATURAL RES. USA, INC.	Oil	42638
42-173-36489	LAREDO PETROLEUM, INC.
42-173-36490	OVINTIV USA INC.	Oil	42808
42-173-36491	Apache Corporation	Oil	40247
42-173-36492	Apache Corporation	Oil	40247
42-173-36493	LAREDO PETROLEUM, INC.
42-173-36494	Apache Corporation	Oil	40247
42-173-36495	XTO ENERGY INC.	Oil	38900
42-173-36496	XTO ENERGY INC.	Oil	38900
42-173-36497	XTO ENERGY INC.	Oil	19329
42-173-36498	DIAMONDBACK E&P LLC	Oil	46396
42-173-36499	DIAMONDBACK E&P LLC	Oil	46579
42-173-36500	RP OPERATING, L.L.C.	Oil	43694
42-173-36501	Hunt Oil Company	Oil	06399
42-173-36502	Hunt Oil Company	Oil	06392
42-173-36503	Apache Corporation
42-173-36504	Apache Corporation	Oil	43312
42-173-36505	Apache Corporation	Oil	46249
42-173-36506	Apache Corporation	Oil	40247
42-173-36507	Apache Corporation	Oil	39614
42-173-36508	OVINTIV USA INC.	Oil	46744
42-173-36509	OVINTIV USA INC.	Oil	41366
42-173-36510	Apache Corporation	Oil	44920
42-173-36511	Apache Corporation	Oil	44920
42-173-36512	OVINTIV USA INC.	Oil	43883
42-173-36513	OVINTIV USA INC.	Oil	43883
42-173-36514	LAREDO PETROLEUM, INC.	Oil	39332
42-173-36515	PIONEER NATURAL RES. USA, INC.	Oil	42646
42-173-36516	Apache Corporation	Oil	43991
42-173-36517	Apache Corporation	Oil	45307
42-173-36518	Apache Corporation	Oil	43991
42-173-36519	Apache Corporation	Oil	43991
42-173-36520	Apache Corporation	Oil	43991
42-173-36521	Apache Corporation	Oil	43991
42-173-36522	LAREDO PETROLEUM, INC.	Oil	42934
42-173-36523	LAREDO PETROLEUM, INC.	Oil	45510
42-173-36524	LAREDO PETROLEUM, INC.	Oil	43470
42-173-36525	LAREDO PETROLEUM, INC.	Oil	43467
42-173-36526	LAREDO PETROLEUM, INC.	Oil	44542
42-173-36527	PIONEER NATURAL RES. USA, INC.	Oil	42081
42-173-36528	SMC OIL & GAS, INC.	Oil	43400
42-173-36529	OVINTIV USA INC.	Oil	46217
42-173-36530	PIONEER NATURAL RES. USA, INC.	Oil	43037
42-173-36531	LAREDO PETROLEUM, INC.	Oil	44571
42-173-36532	LAREDO PETROLEUM, INC.	Oil	42544
42-173-36533	DIAMONDBACK E&P LLC	Oil	41953
42-173-36534	LAREDO MIDSTREAM SERVICES, LLC
42-173-36535	LAREDO PETROLEUM, INC.	Oil	41632
42-173-36536	LAREDO PETROLEUM, INC.	Oil	42867
42-173-36537	PIONEER NATURAL RES. USA, INC.	Oil	46623
42-173-36538	Apache Corporation	Oil	43991
42-173-36539	LAREDO PETROLEUM, INC.
42-173-36540	LAREDO PETROLEUM, INC.
42-173-36541	Hunt Oil Company	Oil	06392
42-173-36542	DIAMONDBACK E&P LLC	Oil	46402
42-173-36543	PIONEER NATURAL RES. USA, INC.	Oil	41086
42-173-36544	DIAMONDBACK E&P LLC	Oil	45051
42-173-36545	DIAMONDBACK E&P LLC	Oil	45051
42-173-36546	DIAMONDBACK E&P LLC	Oil	46402
42-173-36547	OVINTIV USA INC.	Oil	46774
42-173-36548	PIONEER NATURAL RES. USA, INC.
42-173-36549	PIONEER NATURAL RES. USA, INC.	Oil	39524
42-173-36550	BURLESON PETROLEUM, INC.	Oil	45608
42-173-36551	OVINTIV USA INC.	Oil	42808
42-173-36552	OXY USA INC.	Oil	43437
42-173-36553	LAREDO PETROLEUM, INC.	Oil	46079
42-173-36554	PIONEER NATURAL RES. USA, INC.	Oil	41853
42-173-36555	DIAMONDBACK E&P LLC	Oil	23323
42-173-36556	LAREDO PETROLEUM, INC.	Oil	40133
42-173-36557	DIAMONDBACK E&P LLC	Oil	43187
42-173-36558	LAREDO PETROLEUM, INC.
42-173-36559	PIONEER NATURAL RES. USA, INC.	Oil	39524
42-173-36560	MCCLURE OIL COMPANY, INC.	Oil	46128
42-173-36561	LAREDO PETROLEUM, INC.	Oil	46341
42-173-36562	Apache Corporation	Oil	43856
42-173-36563	PIONEER NATURAL RES. USA, INC.	Oil	46595
42-173-36564	PIONEER NATURAL RES. USA, INC.	Oil	46595
42-173-36565	CROWNQUEST OPERATING, LLC	Oil	45595
42-173-36566	Apache Corporation	Oil	46038
42-173-36567	LAREDO PETROLEUM, INC.	Oil	40907
42-173-36568	PIONEER NATURAL RES. USA, INC.	Oil	42081
42-173-36569	BTA OIL PRODUCERS, LLC
42-173-36570	BTA OIL PRODUCERS, LLC
42-173-36571	BTA OIL PRODUCERS, LLC
42-173-36572	BTA OIL PRODUCERS, LLC
42-173-36573	PIONEER NATURAL RES. USA, INC.	Oil	42640
42-173-36574	PIONEER NATURAL RES. USA, INC.	Oil	42640
42-173-36575	LAREDO PETROLEUM, INC.
42-173-36576	LAREDO PETROLEUM, INC.	Oil	44736
42-173-36577	MCCLURE OIL COMPANY, INC.	Oil	46687
42-173-36578	LAREDO PETROLEUM, INC.	Oil	45530
42-173-36579	PIONEER NATURAL RES. USA, INC.	Oil	39145
42-173-36580	PIONEER NATURAL RES. USA, INC.	Oil	42595
42-173-36581	DIAMONDBACK E&P LLC	Oil	45574
42-173-36583	LAREDO PETROLEUM, INC.	Oil	46236
42-173-36584	PIONEER NATURAL RES. USA, INC.	Oil	45402
42-173-36585	Apache Corporation	Oil	41008
42-173-36586	Apache Corporation	Oil	41008
42-173-36587	PIONEER NATURAL RES. USA, INC.	Oil	38472
42-173-36588	Apache Corporation	Oil	40247
42-173-36589	Apache Corporation	Oil	41755
42-173-36590	Apache Corporation	Oil	40247
42-173-36591	Apache Corporation	Oil	40247
42-173-36592	CROWNQUEST OPERATING, LLC	Oil	45107
42-173-36593	CONOCOPHILLIPS COMPANY
42-173-36594	OVINTIV USA INC.	Oil	39167
42-173-36595	STANOLIND PRODUCTION LLC	Oil	43657
42-173-36596	LAREDO PETROLEUM, INC.	Oil	46057
42-173-36597	DIAMONDBACK E&P LLC	Oil	45051
42-173-36598	MINERAL TECHNOLOGIES, INC.	Oil	45552
42-173-36599	BLUESTEM ENERGY HOLDINGS, LLC
42-173-36600	BLUESTEM ENERGY HOLDINGS, LLC
42-173-36601	DIAMONDBACK E&P LLC	Oil	45051
42-173-36602	OVINTIV USA INC.	Oil	39167
42-173-36603	OVINTIV USA INC.	Oil	46271
42-173-36604	LAREDO PETROLEUM, INC.	Oil	46276
42-173-36605	Apache Corporation	Oil	41869
42-173-36606	PIONEER NATURAL RES. USA, INC.	Oil	45034
42-173-36607	OVINTIV USA INC.	Oil	46330
42-173-36608	Apache Corporation	Oil	44331
42-173-36609	PIONEER NATURAL RES. USA, INC.
42-173-36610	MIDENERGY OPERATING, LLC	Oil	43853
42-173-36611	MIDENERGY OPERATING, LLC	Oil	43853
42-173-36612	LAREDO PETROLEUM, INC.	Oil	45538
42-173-36613	DIAMONDBACK E&P LLC	Oil	40495
42-173-36614	LAREDO PETROLEUM, INC.	Oil	39051
42-173-36615	OVINTIV USA INC.	Oil	39167
42-173-36616	LAREDO PETROLEUM, INC.	Oil	46370
42-173-36617	LAREDO PETROLEUM, INC.	Oil	45669
42-173-36618	LAREDO PETROLEUM, INC.
42-173-36619	DIAMONDBACK E&P LLC	Oil	45622
42-173-36620	LAREDO PETROLEUM, INC.	Oil	46370
42-173-36621	BURLESON PETROLEUM, INC.	Oil	45408
42-173-36622	LAREDO PETROLEUM, INC.	Oil	41648
42-173-36623	PIONEER NATURAL RES. USA, INC.
42-173-36624	LAREDO PETROLEUM, INC.
42-173-36625	LAREDO PETROLEUM, INC.
42-173-36626	BTA OIL PRODUCERS, LLC
42-173-36627	LAREDO PETROLEUM, INC.	Oil	41228
42-173-36628	TRILOGY OPERATING, INC.	Oil	45727
42-173-36629	TRILOGY OPERATING, INC.	Oil	46037
42-173-36630	LAREDO PETROLEUM, INC.	Oil	41973
42-173-36631	LAREDO PETROLEUM, INC.
42-173-36632	Hunt Oil Company	Oil	14594
42-173-36633	Hunt Oil Company
42-173-36634	Hunt Oil Company	Oil	46573
42-173-36636	PIONEER NATURAL RES. USA, INC.
42-173-36637	LAREDO PETROLEUM, INC.	Oil	45669
42-173-36638	MDC TEXAS OPERATOR LLC	Oil	42126
42-173-36639	CROWNQUEST OPERATING, LLC	Oil	43924
42-173-36640	OCCIDENTAL PERMIAN LTD.	Oil	18835
42-173-36641	Apache Corporation	Oil	40247
42-173-36642	Apache Corporation	Oil	40247
42-173-36643	Apache Corporation	Oil	45896
42-173-36644	Hunt Oil Company	Oil	15569
42-173-36645	LAREDO PETROLEUM, INC.	Oil	42579
42-173-36646	LAREDO PETROLEUM, INC.	Oil	42579
42-173-36647	Apache Corporation	Oil	40473
42-173-36648	Apache Corporation	Oil	43312
42-173-36649	ALLEDER INC.	Oil	44947
42-173-36650	Apache Corporation
42-173-36651	Apache Corporation
42-173-36652	LAREDO PETROLEUM, INC.	Oil	39243
42-173-36653	OVINTIV USA INC.	Oil	45840
42-173-36655	Apache Corporation
42-173-36656	Apache Corporation	Oil	46247
42-173-36657	LAREDO PETROLEUM, INC.
42-173-36658	LAREDO PETROLEUM, INC.
42-173-36659	CROWNQUEST OPERATING, LLC	Oil	41407
42-173-36660	COG OPERATING LLC	Oil	37789
42-173-36661	OVINTIV USA INC.	Oil	39617
42-173-36662	OVINTIV USA INC.	Oil	39348
42-173-36663	PIONEER NATURAL RES. USA, INC.	Oil	41881
42-173-36664	OVINTIV USA INC.	Oil	38718
42-173-36665	LAREDO PETROLEUM, INC.	Oil	39049
42-173-36666	PIONEER NATURAL RES. USA, INC.	Oil	42578
42-173-36667	PIONEER NATURAL RES. USA, INC.
42-173-36668	OVINTIV USA INC.	Oil	42359
42-173-36669	ENERGEN RESOURCES CORPORATION
42-173-36670	OVINTIV USA INC.	Oil	46089
42-173-36671	OVINTIV USA INC.	Oil	45540
42-173-36672	LAREDO PETROLEUM, INC.	Oil	46001
42-173-36673	BREITBURN OPERATING L.P.	Oil	29956
42-173-36674	PIONEER NATURAL RES. USA, INC.	Oil	41086
42-173-36675	PIONEER NATURAL RES. USA, INC.	Oil	38142
42-173-36676	SMC OIL & GAS, INC.	Oil	46136
42-173-36677	LAREDO PETROLEUM, INC.
42-173-36678	CROWNQUEST OPERATING, LLC	Oil	44103
42-173-36679	CROWNQUEST OPERATING, LLC	Oil	45595
42-173-36680	CROWNQUEST OPERATING, LLC	Oil	43924
42-173-36681	BREITBURN OPERATING L.P.	Oil	32512
42-173-36682	PIONEER NATURAL RES. USA, INC.
42-173-36683	DE3 OPERATING LLC	Oil	23456
42-173-36684	DIAMONDBACK E&P LLC	Oil	46066
42-173-36685	LAREDO PETROLEUM, INC.	Oil	46173
42-173-36686	OVINTIV USA INC.	Oil	44223
42-173-36687	CROWNQUEST OPERATING, LLC	Oil	43570
42-173-36688	LAREDO PETROLEUM, INC.	Oil	46692
42-173-36689	SMC OIL & GAS, INC.	Oil	46275
42-173-36690	LAREDO PETROLEUM, INC.	Oil	46693
42-173-36691	LAREDO PETROLEUM, INC.	Oil	46693
42-173-36692	LAREDO PETROLEUM, INC.	Oil	46692
42-173-36693	LAREDO PETROLEUM, INC.
42-173-36694	ENDEAVOR ENERGY RESOURCES L.P.	Oil	45855
42-173-36695	LAREDO PETROLEUM, INC.	Oil	46495
42-173-36696	LAREDO PETROLEUM, INC.	Oil	46495
42-173-36697	LAREDO PETROLEUM, INC.	Oil	46500
42-173-36698	LAREDO PETROLEUM, INC.	Oil	46512
42-173-36699	LAREDO PETROLEUM, INC.	Oil	46512
42-173-36700	LAREDO PETROLEUM, INC.	Oil	46500
42-173-36701	LAREDO PETROLEUM, INC.	Oil	46513
42-173-36702	LAREDO PETROLEUM, INC.	Oil	46513
42-173-36703	Hunt Oil Company	Oil	34760
42-173-36704	DES DESERT ENERGY SERVICES LLC
42-173-36705	OVINTIV USA INC.	Oil	43992
42-173-36706	PILOT WATER SOLUTIONS PERMIANLLC	Oil	46787
42-173-36707	OVINTIV USA INC.	Oil	46335
42-173-36708	COG OPERATING LLC	Oil	37789
42-173-36709	COG OPERATING LLC	Oil	37789
42-173-36710	COG OPERATING LLC	Oil	37789
42-173-36711	OVINTIV USA INC.	Oil	46549
42-173-36712	LAREDO PETROLEUM, INC.	Oil	43729
42-173-36713	LAREDO PETROLEUM, INC.	Oil	43729
42-173-36714	LAREDO PETROLEUM, INC.	Oil	43729
42-173-36715	LAREDO PETROLEUM, INC.	Oil	45679
42-173-36716	LAREDO PETROLEUM, INC.	Oil	45679
42-173-36717	LAREDO PETROLEUM, INC.	Oil	45679
42-173-36718	PIONEER NATURAL RES. USA, INC.	Oil	45988
42-173-36719	OVINTIV USA INC.	Oil	46744
42-173-36720	LAREDO PETROLEUM, INC.	Oil	42531
42-173-36721	DIAMONDBACK E&P LLC	Oil	46506
42-173-36722	DIAMONDBACK E&P LLC	Oil	46479
42-173-36723	DIAMONDBACK E&P LLC	Oil	46479
42-173-36724	PIONEER NATURAL RES. USA, INC.
42-173-36725	DIAMONDBACK E&P LLC	Oil	46506
42-173-36726	MDC TEXAS OPERATOR LLC	Oil	45773
42-173-36727	ROYALTY LAND & DEV. CO., INC.
42-173-36728	DIAMONDBACK E&P LLC	Oil	46508
42-173-36729	DIAMONDBACK E&P LLC	Oil	46508
42-173-36730	DIAMONDBACK E&P LLC	Oil	46577
42-173-36731	LAREDO PETROLEUM, INC.	Oil	42531
42-173-36732	LAREDO PETROLEUM, INC.	Oil	45510
42-173-36733	LAREDO PETROLEUM, INC.	Oil	46017
42-173-36734	LAREDO PETROLEUM, INC.	Oil	45918
42-173-36735	LAREDO PETROLEUM, INC.	Oil	45918
42-173-36736	OVINTIV USA INC.	Oil	39167
42-173-36737	DIAMONDBACK E&P LLC	Oil	43187
42-173-36738	OVINTIV USA INC.	Oil	46441
42-173-36739	DIAMONDBACK E&P LLC	Oil	46710
42-173-36740	DIAMONDBACK E&P LLC	Oil	46710
42-173-36741	DIAMONDBACK E&P LLC	Oil	46579
42-173-36742	DIAMONDBACK E&P LLC	Oil	46396
42-173-36743	OVINTIV USA INC.	Oil	35666
42-173-36744	DIAMONDBACK E&P LLC	Oil	46578
42-173-36745	DIAMONDBACK E&P LLC	Oil	44332
42-173-36746	OVINTIV USA INC.	Oil	39167
42-173-36747	OVINTIV USA INC.	Oil	39167
42-173-36748	OVINTIV USA INC.	Oil	39167
42-173-36749	COG OPERATING LLC	Oil	45069
42-173-36750	Apache Corporation
42-173-36751	Apache Corporation
42-173-36752	Apache Corporation	Oil	44929
42-173-36753	Apache Corporation	Oil	44929
42-173-36754	Apache Corporation
42-173-36755	DIAMONDBACK E&P LLC	Oil	46396
42-173-36756	BLUESTEM ENERGY HOLDINGS, LLC	Oil	41953
42-173-36757	Citation Oil & Gas Corp.	Oil	41260
42-173-36758	CONOCOPHILLIPS COMPANY
42-173-36759	OVINTIV USA INC.	Oil	41731
42-173-36760	OVINTIV USA INC.	Oil	47525
42-173-36761	Hunt Oil Company	Oil	06596
42-173-36762	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-36763	COG OPERATING LLC	Oil	44558
42-173-36764	Apache Corporation	Oil	40295
42-173-36765	Apache Corporation	Oil	43633
42-173-36766	Apache Corporation	Oil	44698
42-173-36767	Apache Corporation	Oil	40474
42-173-36768	COG OPERATING LLC	Oil	44558
42-173-36769	Apache Corporation
42-173-36770	OVINTIV USA INC.	Oil	41731
42-173-36771	CROWNQUEST OPERATING, LLC	Oil	45595
42-173-36772	OXY USA INC.	Oil	45708
42-173-36773	OXY USA INC.	Oil	45708
42-173-36774	CROWNQUEST OPERATING, LLC	Oil	44715
42-173-36775	Apache Corporation	Oil	44881
42-173-36776	ATHLON HOLDINGS LP
42-173-36777	Apache Corporation	Oil	43624
42-173-36778	Apache Corporation	Oil	40246
42-173-36779	Apache Corporation
42-173-36780	LAREDO PETROLEUM, INC.	Oil	45895
42-173-36781	COG OPERATING LLC	Oil	46917
42-173-36782	LAREDO PETROLEUM, INC.	Oil	46250
42-173-36783	Apache Corporation
42-173-36784	Apache Corporation
42-173-36785	Apache Corporation
42-173-36786	Apache Corporation
42-173-36787	Apache Corporation
42-173-36788	MDC TEXAS OPERATOR LLC	Oil	46727
42-173-36789	COG OPERATING LLC	Oil	46751
42-173-36790	ENDEAVOR ENERGY RESOURCES L.P.	Oil	08826
42-173-36791	OXY USA INC.	Oil	47021
42-173-36792	Apache Corporation
42-173-36793	OXY USA INC.	Oil	43770
42-173-36794	OXY USA INC.	Oil	42205
42-173-36795	COG OPERATING LLC	Oil	45068
42-173-36796	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06387
42-173-36797	OXY USA INC.	Oil	46695
42-173-36798	CINNABAR OPERATING, LLC	Oil	47663
42-173-36799	LAREDO PETROLEUM, INC.
42-173-36800	DIAMONDBACK E&P LLC	Oil	44086
42-173-36801	DIAMONDBACK E&P LLC	Oil	42127
42-173-36802	COG OPERATING LLC	Oil	37789
42-173-36803	THREE RIVERS OPERATING CO II LLC
42-173-36804	PIONEER NATURAL RES. USA, INC.	Oil	46553
42-173-36805	LAREDO PETROLEUM, INC.
42-173-36806	PIONEER NATURAL RES. USA, INC.
42-173-36807	OVINTIV USA INC.	Oil	46135
42-173-36808	LAREDO PETROLEUM, INC.
42-173-36809	Apache Corporation
42-173-36810	OXY USA INC.	Oil	46083
42-173-36811	Apache Corporation	Oil	44920
42-173-36812	Apache Corporation
42-173-36813	Apache Corporation
42-173-36814	Apache Corporation
42-173-36815	THREE RIVERS OPERATING CO II LLC
42-173-36816	DIAMONDBACK E&P LLC	Oil	40428
42-173-36817	THREE RIVERS OPERATING CO II LLC
42-173-36818	DIAMONDBACK E&P LLC	Oil	40428
42-173-36819	DIAMONDBACK E&P LLC	Oil	40428
42-173-36820	Apache Corporation	Oil	44331
42-173-36821	Apache Corporation	Oil	44331
42-173-36822	Apache Corporation	Oil	44331
42-173-36823	Apache Corporation	Oil	44331
42-173-36824	LAREDO PETROLEUM, INC.	Oil	45530
42-173-36825	Apache Corporation	Oil	44331
42-173-36826	BTA OIL PRODUCERS, LLC
42-173-36827	OXY USA INC.	Oil	46083
42-173-36828	OXY USA INC.	Oil	46073
42-173-36829	THREE RIVERS OPERATING CO II LLC
42-173-36830	THREE RIVERS OPERATING CO II LLC
42-173-36831	Hunt Oil Company	Oil	46568
42-173-36832	STANOLIND PRODUCTION LLC	Oil	43657
42-173-36833	STANOLIND PRODUCTION LLC	Oil	43657
42-173-36834	LAREDO PETROLEUM, INC.	Oil	46151
42-173-36835	DIAMONDBACK E&P LLC	Oil	41483
42-173-36836	DIAMONDBACK E&P LLC	Oil	46596
42-173-36837	DIAMONDBACK E&P LLC	Oil	41483
42-173-36838	DIAMONDBACK E&P LLC	Oil	46646
42-173-36839	PIONEER NATURAL RES. USA, INC.	Oil	39524
42-173-36840	DIAMONDBACK E&P LLC	Oil	41483
42-173-36841	DIAMONDBACK E&P LLC	Oil	41483
42-173-36842	DIAMONDBACK E&P LLC	Oil	41483
42-173-36843	DIAMONDBACK E&P LLC	Oil	41483
42-173-36844	DIAMONDBACK E&P LLC	Oil	41483
42-173-36845	DIAMONDBACK E&P LLC	Oil	41483
42-173-36846	DIAMONDBACK E&P LLC	Oil	41483
42-173-36847	DIAMONDBACK E&P LLC	Oil	41483
42-173-36848	DIAMONDBACK E&P LLC	Oil	41483
42-173-36849	DIAMONDBACK E&P LLC	Oil	41483
42-173-36850	DIAMONDBACK E&P LLC	Oil	41483
42-173-36851	CROWNQUEST OPERATING, LLC
42-173-36852	OVINTIV USA INC.	Oil	40949
42-173-36853	PIONEER NATURAL RES. USA, INC.	Oil	46623
42-173-36854	TRILOGY OPERATING, INC.	Oil	46110
42-173-36855	PIONEER NATURAL RES. USA, INC.	Oil	45402
42-173-36856	DIAMONDBACK E&P LLC	Oil	41483
42-173-36857	DIAMONDBACK E&P LLC	Oil	41483
42-173-36858	DIAMONDBACK E&P LLC	Oil	41483
42-173-36859	DIAMONDBACK E&P LLC	Oil	41483
42-173-36860	DIAMONDBACK E&P LLC	Oil	41483
42-173-36861	DIAMONDBACK E&P LLC	Oil	41483
42-173-36862	DIAMONDBACK E&P LLC	Oil	41483
42-173-36863	THREE RIVERS OPERATING CO II LLC
42-173-36864	PIONEER NATURAL RES. USA, INC.	Oil	46623
42-173-36865	THREE RIVERS OPERATING CO II LLC
42-173-36866	PIONEER NATURAL RES. USA, INC.
42-173-36867	PIONEER NATURAL RES. USA, INC.	Oil	46623
42-173-36868	Apache Corporation
42-173-36869	Hunt Oil Company	Oil	47647
42-173-36870	PIONEER NATURAL RES. USA, INC.	Oil	47270
42-173-36871	PIONEER NATURAL RES. USA, INC.
42-173-36872	PIONEER NATURAL RES. USA, INC.
42-173-36873	PIONEER NATURAL RES. USA, INC.	Oil	47270
42-173-36874	DIAMONDBACK E&P LLC	Oil	46772
42-173-36875	DIAMONDBACK E&P LLC	Oil	46066
42-173-36876	DIAMONDBACK E&P LLC	Oil	46066
42-173-36877	DIAMONDBACK E&P LLC	Oil	46797
42-173-36878	DIAMONDBACK E&P LLC	Oil	46790
42-173-36879	Apache Corporation
42-173-36880	DIAMONDBACK E&P LLC	Oil	47240
42-173-36881	OVINTIV USA INC.	Oil	46921
42-173-36882	DIAMONDBACK E&P LLC	Oil	47240
42-173-36883	OVINTIV USA INC.	Oil	46744
42-173-36884	THREE RIVERS OPERATING CO II LLC
42-173-36885	OXY USA INC.	Oil	42648
42-173-36886	ATHLON HOLDINGS LP
42-173-36887	Apache Corporation
42-173-36888	OVINTIV USA INC.	Oil	39167
42-173-36889	THREE RIVERS OPERATING CO II LLC
42-173-36890	THREE RIVERS OPERATING CO II LLC
42-173-36891	ATHLON HOLDINGS LP
42-173-36892	GOODNIGHT MIDSTREAM PERMIAN, LLC	Oil	46201
42-173-36893	DIAMONDBACK E&P LLC	Oil	46790
42-173-36894	EQT PRODUCTION TEXAS, LLC
42-173-36895	Apache Corporation
42-173-36896	Apache Corporation
42-173-36897	Apache Corporation
42-173-36898	COG OPERATING LLC	Oil	37789
42-173-36899	LAREDO PETROLEUM, INC.	Oil	46054
42-173-36900	OXY USA INC.	Oil	47646
42-173-36901	LAREDO PETROLEUM, INC.	Oil	46197
42-173-36902	LAREDO PETROLEUM, INC.	Oil	45493
42-173-36903	LAREDO PETROLEUM, INC.
42-173-36904	ATHLON HOLDINGS LP
42-173-36905	Apache Corporation
42-173-36906	OVINTIV USA INC.	Oil	46921
42-173-36907	Apache Corporation
42-173-36908	Apache Corporation
42-173-36909	Apache Corporation
42-173-36910	Apache Corporation
42-173-36911	Apache Corporation	Oil	40247
42-173-36912	THREE RIVERS OPERATING CO II LLC
42-173-36913	THREE RIVERS OPERATING CO II LLC
42-173-36914	THREE RIVERS OPERATING CO II LLC
42-173-36915	LAREDO PETROLEUM, INC.
42-173-36916	ALLEDER INC.	Oil	44947
42-173-36917	ATHLON HOLDINGS LP
42-173-36918	DIAMONDBACK E&P LLC	Oil	44332
42-173-36919	PIONEER NATURAL RES. USA, INC.
42-173-36920	PIONEER NATURAL RES. USA, INC.	Oil	39145
42-173-36921	Apache Corporation	Oil	45901
42-173-36922	MCCLURE OIL COMPANY, INC.	Oil	45038
42-173-36923	DRACO ENERGY, INC.
42-173-36924	COG OPERATING LLC	Oil	37789
42-173-36925	COG OPERATING LLC	Oil	37789
42-173-36926	TALL CITY BRINE LLC	Oil	47281
42-173-36927	COG OPERATING LLC	Oil	53012
42-173-36928	COG OPERATING LLC	Oil	22943
42-173-36929	COG OPERATING LLC	Oil	53012
42-173-36930	DE3 OPERATING LLC	Oil	23456
42-173-36931	DIAMONDBACK E&P LLC	Oil	45622
42-173-36932	THREE RIVERS OPERATING CO II LLC
42-173-36933	PIONEER NATURAL RES. USA, INC.	Oil	38141
42-173-36934	DIAMONDBACK E&P LLC
42-173-36935	Hunt Oil Company
42-173-36936	Hunt Oil Company
42-173-36937	LAREDO PETROLEUM, INC.	Oil	39051
42-173-36938	PILOT WATER SOLUTIONS PERMIANLLC	Oil	46339
42-173-36939	DIAMONDBACK E&P LLC	Oil	47188
42-173-36940	DIAMONDBACK E&P LLC	Oil	47188
42-173-36941	DIAMONDBACK E&P LLC	Oil	47214
42-173-36942	DIAMONDBACK E&P LLC	Oil	47214
42-173-36943	DIAMONDBACK E&P LLC	Oil	47435
42-173-36944	ENERGEN RESOURCES CORPORATION
42-173-36945	DIAMONDBACK E&P LLC	Oil	47408
42-173-36946	DIAMONDBACK E&P LLC	Oil	47408
42-173-36947	DIAMONDBACK E&P LLC	Oil	47436
42-173-36948	DIAMONDBACK E&P LLC	Oil	47436
42-173-36949	DIAMONDBACK E&P LLC	Oil	47441
42-173-36950	DIAMONDBACK E&P LLC	Oil	47441
42-173-36951	DIAMONDBACK E&P LLC	Oil	47975
42-173-36952	DIAMONDBACK E&P LLC	Oil	47975
42-173-36953	DIAMONDBACK E&P LLC	Oil	47411
42-173-36954	DIAMONDBACK E&P LLC	Oil	47411
42-173-36955	PIONEER NATURAL RES. USA, INC.
42-173-36956	CROWNQUEST OPERATING, LLC	Oil	45595
42-173-36957	CROWNQUEST OPERATING, LLC	Oil	40686
42-173-36958	CROWNQUEST OPERATING, LLC	Oil	44103
42-173-36959	DIAMONDBACK E&P LLC	Oil	40495
42-173-36960	THREE RIVERS OPERATING CO II LLC
42-173-36961	DIAMONDBACK E&P LLC	Oil	40495
42-173-36962	DIAMONDBACK E&P LLC	Oil	40495
42-173-36963	DIAMONDBACK E&P LLC	Oil	40495
42-173-36964	DIAMONDBACK E&P LLC	Oil	40495
42-173-36965	DIAMONDBACK E&P LLC	Oil	40495
42-173-36966	DIAMONDBACK E&P LLC	Oil	40495
42-173-36967	LAREDO PETROLEUM, INC.	Oil	46376
42-173-36968	DIAMONDBACK E&P LLC	Oil	40495
42-173-36969	DIAMONDBACK E&P LLC	Oil	40495
42-173-36970	LAREDO PETROLEUM, INC.
42-173-36971	DIAMONDBACK E&P LLC	Oil	40495
42-173-36972	DIAMONDBACK E&P LLC	Oil	40495
42-173-36973	DIAMONDBACK E&P LLC	Oil	40495
42-173-36974	DIAMONDBACK E&P LLC	Oil	40495
42-173-36975	DIAMONDBACK E&P LLC	Oil	40495
42-173-36976	DIAMONDBACK E&P LLC	Oil	40495
42-173-36977	DIAMONDBACK E&P LLC	Oil	40495
42-173-36978	DIAMONDBACK E&P LLC	Oil	46797
42-173-36979	RSP PERMIAN, LLC
42-173-36980	DIAMONDBACK E&P LLC	Oil	45474
42-173-36981	OXY USA INC.	Oil	46359
42-173-36982	OXY USA INC.	Oil	43437
42-173-36983	LAREDO PETROLEUM, INC.	Oil	45493
42-173-36984	TRILOGY OPERATING, INC.	Oil	49473
42-173-36985	Hunt Oil Company
42-173-36986	Hunt Oil Company
42-173-36987	LAREDO PETROLEUM, INC.	Oil	43729
42-173-36988	ATHLON HOLDINGS LP
42-173-36989	ATHLON HOLDINGS LP
42-173-36990	LAREDO PETROLEUM, INC.	Oil	43729
42-173-36991	RSP PERMIAN, LLC
42-173-36992	RSP PERMIAN, LLC
42-173-36993	COG OPERATING LLC	Oil	52597
42-173-36994	COG OPERATING LLC	Oil	22021
42-173-36995	LAREDO PETROLEUM, INC.
42-173-36996	LAREDO PETROLEUM, INC.
42-173-36997	LAREDO PETROLEUM, INC.
42-173-36998	LAREDO PETROLEUM, INC.
42-173-36999	LAREDO PETROLEUM, INC.
42-173-37000	OXY USA INC.	Oil	47452
42-173-37001	ATHLON HOLDINGS LP
42-173-37002	THREE RIVERS OPERATING CO II LLC
42-173-37003	THREE RIVERS OPERATING CO II LLC
42-173-37004	THREE RIVERS OPERATING CO II LLC
42-173-37005	THREE RIVERS OPERATING CO II LLC
42-173-37006	CROWNQUEST OPERATING, LLC	Oil	44715
42-173-37007	ATHLON HOLDINGS LP
42-173-37008	Apache Corporation
42-173-37009	LAREDO PETROLEUM, INC.	Oil	46043
42-173-37010	COG OPERATING LLC	Oil	38162
42-173-37011	LAREDO PETROLEUM, INC.
42-173-37012	LAREDO PETROLEUM, INC.
42-173-37013	COG OPERATING LLC	Oil	37789
42-173-37014
42-173-37015	COG OPERATING LLC	Oil	44558
42-173-37016	Apache Corporation	Oil	45288
42-173-37017	Apache Corporation
42-173-37018	CROWNQUEST OPERATING, LLC	Oil	46109
42-173-37019	LAREDO PETROLEUM, INC.	Oil	41468
42-173-37020	THREE RIVERS OPERATING CO II LLC
42-173-37021	LAREDO PETROLEUM, INC.
42-173-37022	LAREDO PETROLEUM, INC.	Oil	45510
42-173-37023	LAREDO PETROLEUM, INC.
42-173-37024	LAREDO PETROLEUM, INC.	Oil	45510
42-173-37025	LAREDO PETROLEUM, INC.
42-173-37026	LAREDO PETROLEUM, INC.
42-173-37027	LAREDO PETROLEUM, INC.
42-173-37028	LAREDO PETROLEUM, INC.
42-173-37029	LAREDO PETROLEUM, INC.
42-173-37030	LAREDO PETROLEUM, INC.	Oil	42527
42-173-37031	LAREDO PETROLEUM, INC.
42-173-37032	LAREDO PETROLEUM, INC.
42-173-37033	OVINTIV USA INC.	Oil	47268
42-173-37034	LAREDO PETROLEUM, INC.
42-173-37035	LAREDO PETROLEUM, INC.
42-173-37036	LAREDO PETROLEUM, INC.	Oil	45530
42-173-37037	OVINTIV USA INC.	Oil	46721
42-173-37038	Apache Corporation
42-173-37039	CROWNQUEST OPERATING, LLC	Oil	46713
42-173-37040	Apache Corporation
42-173-37041	Apache Corporation
42-173-37042	Apache Corporation
42-173-37043	CROWNQUEST OPERATING, LLC	Oil	43924
42-173-37044	Apache Corporation
42-173-37045	Apache Corporation
42-173-37046	THREE RIVERS OPERATING CO II LLC
42-173-37047	THREE RIVERS OPERATING CO II LLC
42-173-37048	LAREDO PETROLEUM, INC.	Oil	46151
42-173-37049	CROWNQUEST OPERATING, LLC	Oil	25586
42-173-37050	LAREDO PETROLEUM, INC.
42-173-37051	COG OPERATING LLC
42-173-37052	LAREDO PETROLEUM, INC.	Oil	46127
42-173-37053	LAREDO PETROLEUM, INC.
42-173-37054	Apache Corporation
42-173-37055	LAREDO PETROLEUM, INC.
42-173-37056	Apache Corporation
42-173-37057	SMC OIL & GAS, INC.	Oil	46574
42-173-37058	THREE RIVERS OPERATING CO II LLC
42-173-37059	PARSLEY ENERGY OPERATIONS, LLC	Oil	47039
42-173-37060	Apache Corporation
42-173-37061	Apache Corporation
42-173-37062	Apache Corporation
42-173-37063	CROWNQUEST OPERATING, LLC
42-173-37064	Apache Corporation
42-173-37065	Apache Corporation
42-173-37066	Apache Corporation
42-173-37067	LAREDO PETROLEUM, INC.
42-173-37068	Apache Corporation
42-173-37069	Apache Corporation
42-173-37070	Apache Corporation
42-173-37071	DIAMONDBACK E&P LLC	Oil	44730
42-173-37072	DIAMONDBACK E&P LLC	Oil	44730
42-173-37073	Apache Corporation
42-173-37074	Apache Corporation
42-173-37075	Apache Corporation
42-173-37076	CROWNQUEST OPERATING, LLC	Oil	25586
42-173-37077	ATHLON HOLDINGS LP
42-173-37078	OVINTIV USA INC.	Oil	46721
42-173-37079	LAREDO PETROLEUM, INC.
42-173-37080	STANOLIND PRODUCTION LLC	Oil	43657
42-173-37081	Apache Corporation
42-173-37082	Apache Corporation
42-173-37083	Apache Corporation
42-173-37084	Apache Corporation
42-173-37085	EQT PRODUCTION TEXAS, LLC
42-173-37086	PARSLEY ENERGY OPERATIONS, LLC	Oil	46784
42-173-37087	PARSLEY ENERGY OPERATIONS, LLC	Oil	46784
42-173-37088	OXY USA INC.	Oil	47091
42-173-37089	Apache Corporation
42-173-37090	PIONEER NATURAL RES. USA, INC.
42-173-37091	ENCANA OIL & GAS(USA) INC.	Oil	39792
42-173-37092	LAREDO PETROLEUM, INC.
42-173-37093	CROWNQUEST OPERATING, LLC	Oil	46611
42-173-37094	CROWNQUEST OPERATING, LLC	Oil	45257
42-173-37095	OVINTIV USA INC.	Oil	40949
42-173-37096	ENCANA OIL & GAS(USA) INC.	Oil	47202
42-173-37097	OVINTIV USA INC.	Oil	46744
42-173-37098	DIAMONDBACK E&P LLC	Oil	47687
42-173-37099	DIAMONDBACK E&P LLC	Oil	47687
42-173-37100	DIAMONDBACK E&P LLC	Oil	47803
42-173-37101	DIAMONDBACK E&P LLC	Oil	47803
42-173-37102	ENERGEN RESOURCES CORPORATION
42-173-37103	ENERGEN RESOURCES CORPORATION
42-173-37104	ENERGEN RESOURCES CORPORATION
42-173-37105	ENERGEN RESOURCES CORPORATION
42-173-37106	DIAMONDBACK E&P LLC	Oil	47159
42-173-37107	DIAMONDBACK E&P LLC	Oil	47159
42-173-37108	ENCANA OIL & GAS(USA) INC.	Oil	47525
42-173-37109	OVINTIV USA INC.	Oil	46441
42-173-37110	DIAMONDBACK E&P LLC	Oil	42342
42-173-37111	Apache Corporation
42-173-37112	Apache Corporation
42-173-37113	COG OPERATING LLC	Oil	44558
42-173-37114	COG OPERATING LLC	Oil	44558
42-173-37115	Apache Corporation
42-173-37116	Apache Corporation
42-173-37117	Apache Corporation
42-173-37118	Apache Corporation
42-173-37119	Apache Corporation
42-173-37120	Apache Corporation	Oil	44920
42-173-37121	LAREDO PETROLEUM, INC.
42-173-37122	ENERGEN RESOURCES CORPORATION
42-173-37123	DIAMONDBACK E&P LLC	Oil	47655
42-173-37124	RSP PERMIAN, LLC
42-173-37125	RSP PERMIAN, LLC
42-173-37126	Apache Corporation
42-173-37127	OVINTIV USA INC.	Oil	46744
42-173-37128	OVINTIV USA INC.	Oil	46744
42-173-37129	COG OPERATING LLC	Oil	44558
42-173-37130	DISCOVERY NATURAL RESOURCES LLC
42-173-37131	DISCOVERY NATURAL RESOURCES LLC
42-173-37132	DIAMONDBACK E&P LLC	Oil	47238
42-173-37133	DIAMONDBACK E&P LLC	Oil	47238
42-173-37134	CROWNQUEST OPERATING, LLC
42-173-37135	CROWNQUEST OPERATING, LLC	Oil	46667
42-173-37136	COG OPERATING LLC	Oil	47106
42-173-37137	CROWNQUEST OPERATING, LLC
42-173-37138	OVINTIV USA INC.	Oil	47571
42-173-37139	ENCANA OIL & GAS(USA) INC.	Oil	47416
42-173-37140	COG OPERATING LLC	Oil	44558
42-173-37141	CROWNQUEST OPERATING, LLC	Oil	46109
42-173-37142	CROWNQUEST OPERATING, LLC
42-173-37143	CROWNQUEST OPERATING, LLC	Oil	46902
42-173-37144	CROWNQUEST OPERATING, LLC	Oil	25586
42-173-37145	CROWNQUEST OPERATING, LLC	Oil	46902
42-173-37146	ENCANA OIL & GAS(USA) INC.	Oil	39792
42-173-37147	LAREDO PETROLEUM, INC.
42-173-37148	LAREDO PETROLEUM, INC.
42-173-37149	OVINTIV USA INC.	Oil	45840
42-173-37150	SMC OIL & GAS, INC.	Oil	46677
42-173-37151	CROWNQUEST OPERATING, LLC	Oil	47204
42-173-37152	ALLEDER INC.	Oil	44947
42-173-37153	OVINTIV USA INC.	Oil	47610
42-173-37154	OVINTIV USA INC.	Oil	47543
42-173-37155	OVINTIV USA INC.	Oil	47404
42-173-37156	OVINTIV USA INC.	Oil	47554
42-173-37157	PARSLEY ENERGY OPERATIONS, LLC	Oil	47291
42-173-37158	DISCOVERY NATURAL RESOURCES LLC	Oil	42065
42-173-37159	DISCOVERY NATURAL RESOURCES LLC	Oil	42065
42-173-37160	LAREDO PETROLEUM, INC.
42-173-37161	LAREDO PETROLEUM, INC.
42-173-37162	LAREDO PETROLEUM, INC.
42-173-37163	LAREDO PETROLEUM, INC.
42-173-37164	CROWNQUEST OPERATING, LLC	Oil	40966
42-173-37165	COG OPERATING LLC	Oil	47633
42-173-37166	COG OPERATING LLC	Oil	47633
42-173-37167	CROWNQUEST OPERATING, LLC	Oil	46611
42-173-37168	CROWNQUEST OPERATING, LLC	Oil	45257
42-173-37169	CROWNQUEST OPERATING, LLC	Oil	44103
42-173-37170	COG OPERATING LLC	Oil	44558
42-173-37171	BAM PERMIAN OPERATING, LLC	Oil	47197
42-173-37172	STAMPEDE ENERGY RESOURCES, LLC
42-173-37173	DIAMONDBACK E&P LLC	Oil	47449
42-173-37174	DIAMONDBACK E&P LLC	Oil	47449
42-173-37175	PARSLEY ENERGY OPERATIONS, LLC	Oil	46808
42-173-37176	OXY USA INC.	Oil	47452
42-173-37177	RSP PERMIAN, LLC
42-173-37178	RSP PERMIAN, LLC
42-173-37179	OXY USA INC.	Oil	47549
42-173-37180	CROWNQUEST OPERATING, LLC	Oil	40686
42-173-37181	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-37182	DISCOVERY NATURAL RESOURCES LLC	Oil	41771
42-173-37183	DISCOVERY NATURAL RESOURCES LLC	Oil	47737
42-173-37184	DISCOVERY NATURAL RESOURCES LLC
42-173-37185	DISCOVERY NATURAL RESOURCES LLC
42-173-37186	DISCOVERY NATURAL RESOURCES LLC
42-173-37187	DIAMONDBACK E&P LLC	Oil	46157
42-173-37188	OVINTIV USA INC.	Oil	46721
42-173-37189	PIONEER NATURAL RES. USA, INC.	Oil	46618
42-173-37190	PIONEER NATURAL RES. USA, INC.	Oil	46618
42-173-37191	PIONEER NATURAL RES. USA, INC.	Oil	46618
42-173-37192	COG OPERATING LLC	Oil	47633
42-173-37193	COG OPERATING LLC	Oil	47633
42-173-37194	CHEVRON U. S. A. INC.	Oil	45190
42-173-37195	CHEVRON U. S. A. INC.	Oil	45190
42-173-37196	CHEVRON U. S. A. INC.	Oil	45190
42-173-37197	CHEVRON U. S. A. INC.	Oil	45190
42-173-37198	PIONEER NATURAL RES. USA, INC.	Oil	06277
42-173-37199	CROWNQUEST OPERATING, LLC
42-173-37200	CROWNQUEST OPERATING, LLC
42-173-37201	Hunt Oil Company	Oil	47381
42-173-37202	Hunt Oil Company	Oil	47431
42-173-37203	DIAMONDBACK E&P LLC	Oil	43004
42-173-37204	DIAMONDBACK E&P LLC	Oil	45111
42-173-37205	DIAMONDBACK E&P LLC	Oil	47421
42-173-37206	DIAMONDBACK E&P LLC	Oil	47388
42-173-37207	DIAMONDBACK E&P LLC	Oil	47440
42-173-37208	CROWNQUEST OPERATING, LLC	Oil	43047
42-173-37209	COG OPERATING LLC	Oil	47455
42-173-37212	COG OPERATING LLC	Oil	47455
42-173-37213	XTO ENERGY INC.	Oil	38900
42-173-37214	XTO ENERGY INC.	Oil	38900
42-173-37215	ENERGEN RESOURCES CORPORATION
42-173-37216	ENERGEN RESOURCES CORPORATION
42-173-37217	CROWNQUEST OPERATING, LLC	Oil	25539
42-173-37218	CROWNQUEST OPERATING, LLC	Oil	46109
42-173-37219	XTO ENERGY INC.	Oil	38900
42-173-37220	XTO ENERGY INC.	Oil	38900
42-173-37221	XTO ENERGY INC.	Oil	38900
42-173-37222	XTO ENERGY INC.	Oil	38900
42-173-37223	XTO ENERGY INC.	Oil	38900
42-173-37224	LAREDO PETROLEUM, INC.	Oil	39118
42-173-37226	OVINTIV USA INC.	Oil	47463
42-173-37227	OVINTIV USA INC.	Oil	46549
42-173-37228	XTO ENERGY INC.	Oil	38900
42-173-37229	DIAMONDBACK E&P LLC
42-173-37230	DIAMONDBACK E&P LLC	Oil	47522
42-173-37231	DIAMONDBACK E&P LLC	Oil	47498
42-173-37232	PARSLEY ENERGY OPERATIONS, LLC
42-173-37233	CROWNQUEST OPERATING, LLC	Oil	23634
42-173-37234	CROWNQUEST OPERATING, LLC	Oil	23634
42-173-37235	CROWNQUEST OPERATING, LLC	Oil	23634
42-173-37236	OVINTIV USA INC.	Oil	46744
42-173-37237	LAREDO PETROLEUM, INC.	Oil	47795
42-173-37238	LAREDO PETROLEUM, INC.	Oil	47787
42-173-37239	LAREDO PETROLEUM, INC.	Oil	47804
42-173-37240	LAREDO PETROLEUM, INC.	Oil	47779
42-173-37241	TRILOGY OPERATING, INC.	Oil	51052
42-173-37242	TRILOGY OPERATING, INC.
42-173-37243	CROWNQUEST OPERATING, LLC	Oil	47992
42-173-37244	BTA OIL PRODUCERS, LLC
42-173-37245	DIAMONDBACK E&P LLC	Oil	47891
42-173-37246	CROWNQUEST OPERATING, LLC	Oil	47204
42-173-37247	ENERGEN RESOURCES CORPORATION
42-173-37248	DIAMONDBACK E&P LLC	Oil	47357
42-173-37249	OGX OPERATING, LLC
42-173-37250	OGX OPERATING, LLC
42-173-37251	LAREDO PETROLEUM, INC.	Oil	46054
42-173-37252	CROWNQUEST OPERATING, LLC
42-173-37253	CHEVRON U. S. A. INC.
42-173-37254	DIAMONDBACK E&P LLC	Oil	47892
42-173-37255	DIAMONDBACK E&P LLC	Oil	47893
42-173-37256	CROWNQUEST OPERATING, LLC	Oil	43924
42-173-37257	OVINTIV USA INC.	Oil	39792
42-173-37258	OVINTIV USA INC.	Oil	39792
42-173-37259	CINNABAR OPERATING, LLC	Oil	47606
42-173-37260	CINNABAR OPERATING, LLC	Oil	47634
42-173-37261	CINNABAR OPERATING, LLC
42-173-37262	CROWNQUEST OPERATING, LLC
42-173-37263	OXY USA INC.
42-173-37264	CINNABAR OPERATING, LLC
42-173-37265	LAREDO PETROLEUM, INC.	Oil	47617
42-173-37266	PARSLEY ENERGY OPERATIONS, LLC	Oil	46808
42-173-37267	CINNABAR OPERATING, LLC	Oil	47551
42-173-37268	CROWNQUEST OPERATING, LLC	Oil	42443
42-173-37269	DE3 OPERATING LLC	Oil	23290
42-173-37270	DE3 OPERATING LLC	Oil	23421
42-173-37271	CROWNQUEST OPERATING, LLC	Oil	47946
42-173-37272
42-173-37273	CROWNQUEST OPERATING, LLC	Oil	47972
42-173-37274	LAREDO PETROLEUM, INC.	Oil	45493
42-173-37275	LAREDO PETROLEUM, INC.	Oil	47422
42-173-37276	Hunt Oil Company	Oil	48211
42-173-37277	Hunt Oil Company	Oil	48214
42-173-37278	Hunt Oil Company	Oil	46573
42-173-37279	DIAMONDBACK E&P LLC
42-173-37280	ALLEDER INC.	Oil	44947
42-173-37281	DIAMONDBACK E&P LLC	Oil	47894
42-173-37282	DIAMONDBACK E&P LLC
42-173-37283	DIAMONDBACK E&P LLC	Oil	47900
42-173-37284	DIAMONDBACK E&P LLC	Oil	47894
42-173-37285	DIAMONDBACK E&P LLC
42-173-37286	DIAMONDBACK E&P LLC	Oil	47951
42-173-37287	CROWNQUEST OPERATING, LLC
42-173-37288	FED OPERATING LLC	Oil	52516
42-173-37289	DIAMONDBACK E&P LLC	Oil	49136
42-173-37290	DIAMONDBACK E&P LLC	Oil	49136
42-173-37291	ENERGEN RESOURCES CORPORATION
42-173-37292	ENERGEN RESOURCES CORPORATION
42-173-37293	DIAMONDBACK E&P LLC	Oil	49144
42-173-37294	DIAMONDBACK E&P LLC	Oil	48958
42-173-37295	DIAMONDBACK E&P LLC	Oil	49023
42-173-37296	PIONEER NATURAL RES. USA, INC.	Oil	46595
42-173-37297	AQUA TERRA PERMIAN, LLC	Oil	47965
42-173-37298	CROWNQUEST OPERATING, LLC	Oil	46109
42-173-37299	PIONEER NATURAL RES. USA, INC.	Oil	46595
42-173-37300	CROWNQUEST OPERATING, LLC
42-173-37301	PIONEER NATURAL RES. USA, INC.	Oil	46595
42-173-37302	PIONEER NATURAL RES. USA, INC.
42-173-37303	DIAMONDBACK E&P LLC	Oil	47357
42-173-37304	ENDEAVOR ENERGY RESOURCES L.P.	Oil	48481
42-173-37305	ENDEAVOR ENERGY RESOURCES L.P.	Oil	48342
42-173-37306	DIAMONDBACK E&P LLC	Oil	47357
42-173-37307	DIAMONDBACK E&P LLC	Oil	47357
42-173-37308	DIAMONDBACK E&P LLC	Oil	47357
42-173-37309	ENERGEN RESOURCES CORPORATION
42-173-37310	MERIDA 5280 ENERGY, LLC	Oil	47533
42-173-37311	DIAMONDBACK E&P LLC	Oil	47357
42-173-37312	DIAMONDBACK E&P LLC
42-173-37313	DIAMONDBACK E&P LLC	Oil	50158
42-173-37314	DIAMONDBACK E&P LLC	Oil	50157
42-173-37315	CINNABAR OPERATING, LLC	Oil	47662
42-173-37316	RP OPERATING, L.L.C.
42-173-37317	PARSLEY ENERGY OPERATIONS, LLC	Oil	50463
42-173-37318	DIAMONDBACK E&P LLC	Oil	47357
42-173-37319	COG OPERATING LLC	Oil	47633
42-173-37320	COG OPERATING LLC	Oil	47633
42-173-37321	COG OPERATING LLC	Oil	47633
42-173-37322	COG OPERATING LLC	Oil	47633
42-173-37323	PARSLEY ENERGY OPERATIONS, LLC	Oil	47552
42-173-37324	CROWNQUEST OPERATING, LLC	Oil	40686
42-173-37325	XTO ENERGY INC.
42-173-37326	XTO ENERGY INC.
42-173-37327	XTO ENERGY INC.
42-173-37328	XTO ENERGY INC.
42-173-37329	XTO ENERGY INC.
42-173-37330	XTO ENERGY INC.
42-173-37331	XTO ENERGY INC.
42-173-37332	XTO ENERGY INC.
42-173-37333	CINNABAR OPERATING, LLC	Oil	47706
42-173-37334	TRILOGY OPERATING, INC.	Oil	44618
42-173-37335	CINNABAR OPERATING, LLC	Oil	52159
42-173-37336	PIONEER NATURAL RES. USA, INC.	Oil	48469
42-173-37337	PIONEER NATURAL RES. USA, INC.	Oil	48469
42-173-37338	PIONEER NATURAL RES. USA, INC.	Oil	48469
42-173-37339	PIONEER NATURAL RES. USA, INC.	Oil	48469
42-173-37340	PIONEER NATURAL RES. USA, INC.	Oil	48469
42-173-37341	CINNABAR OPERATING, LLC
42-173-37342	CINNABAR OPERATING, LLC
42-173-37343	PARSLEY ENERGY OPERATIONS, LLC	Oil	46808
42-173-37344	PARSLEY ENERGY OPERATIONS, LLC	Oil	46808
42-173-37345	PARSLEY ENERGY OPERATIONS, LLC	Oil	46808
42-173-37346	LAREDO PETROLEUM, INC.	Oil	47945
42-173-37347	LAREDO PETROLEUM, INC.	Oil	47952
42-173-37348	LAREDO PETROLEUM, INC.	Oil	47970
42-173-37349	LAREDO PETROLEUM, INC.	Oil	48002
42-173-37350	LAREDO PETROLEUM, INC.
42-173-37351	PARSLEY ENERGY OPERATIONS, LLC	Oil	48097
42-173-37352	PARSLEY ENERGY OPERATIONS, LLC	Oil	48570
42-173-37353	PARSLEY ENERGY OPERATIONS, LLC	Oil	48384
42-173-37354	PIONEER NATURAL RES. USA, INC.
42-173-37355	PIONEER NATURAL RES. USA, INC.
42-173-37356	PIONEER NATURAL RES. USA, INC.
42-173-37357	PIONEER NATURAL RES. USA, INC.	Oil	48500
42-173-37358	PIONEER NATURAL RES. USA, INC.	Oil	48500
42-173-37359	PIONEER NATURAL RES. USA, INC.	Oil	48500
42-173-37360	CROWNQUEST OPERATING, LLC
42-173-37361	LAREDO PETROLEUM, INC.	Oil	48543
42-173-37362	PARSLEY ENERGY OPERATIONS, LLC	Oil	48351
42-173-37363	PIONEER NATURAL RES. USA, INC.	Oil	48500
42-173-37364	PIONEER NATURAL RES. USA, INC.	Oil	48500
42-173-37365	PIONEER NATURAL RES. USA, INC.	Oil	48500
42-173-37366	DIAMONDBACK E&P LLC	Oil	48077
42-173-37367	DIAMONDBACK E&P LLC	Oil	48268
42-173-37368	OVINTIV USA INC.	Oil	39617
42-173-37369	OVINTIV USA INC.	Oil	39617
42-173-37370	LAREDO PETROLEUM, INC.	Oil	48091
42-173-37371	CROWNQUEST OPERATING, LLC	Oil	42443
42-173-37372	OXY USA INC.	Oil	48363
42-173-37373	FED OPERATING LLC	Oil	52513
42-173-37374	DIAMONDBACK E&P LLC	Oil	48030
42-173-37375	DIAMONDBACK E&P LLC	Oil	48253
42-173-37376	PIONEER NATURAL RES. USA, INC.	Oil	48603
42-173-37377	PIONEER NATURAL RES. USA, INC.	Oil	48613
42-173-37378	PIONEER NATURAL RES. USA, INC.	Oil	48612
42-173-37379	PIONEER NATURAL RES. USA, INC.	Oil	49168
42-173-37380	PIONEER NATURAL RES. USA, INC.	Oil	49269
42-173-37381	PIONEER NATURAL RES. USA, INC.	Oil	49167
42-173-37382	DIAMONDBACK E&P LLC
42-173-37383	DIAMONDBACK E&P LLC
42-173-37384	DIAMONDBACK E&P LLC
42-173-37385	DIAMONDBACK E&P LLC
42-173-37386	CROWNQUEST OPERATING, LLC	Oil	48356
42-173-37387	TRILOGY OPERATING, INC.	Oil	48858
42-173-37388	DIAMONDBACK E&P LLC	Oil	48287
42-173-37389	DIAMONDBACK E&P LLC	Oil	48294
42-173-37390	PIONEER NATURAL RES. USA, INC.	Oil	46618
42-173-37391	PIONEER NATURAL RES. USA, INC.	Oil	46618
42-173-37392	PIONEER NATURAL RES. USA, INC.
42-173-37393	LAREDO PETROLEUM, INC.
42-173-37394	LAREDO PETROLEUM, INC.
42-173-37395
42-173-37396	LAREDO PETROLEUM, INC.
42-173-37397	LAREDO PETROLEUM, INC.
42-173-37398	LAREDO PETROLEUM, INC.
42-173-37399	PARSLEY ENERGY OPERATIONS, LLC	Oil	48313
42-173-37400	CINNABAR OPERATING, LLC	Oil	47663
42-173-37401	CINNABAR OPERATING, LLC	Oil	47663
42-173-37402	CINNABAR OPERATING, LLC	Oil	47662
42-173-37403	CINNABAR OPERATING, LLC	Oil	47662
42-173-37404	LAREDO PETROLEUM, INC.	Oil	48451
42-173-37405	LAREDO PETROLEUM, INC.	Oil	48502
42-173-37406	LAREDO PETROLEUM, INC.	Oil	48445
42-173-37407	LAREDO PETROLEUM, INC.	Oil	48448
42-173-37408	LAREDO PETROLEUM, INC.	Oil	48332
42-173-37409	LAREDO PETROLEUM, INC.	Oil	48247
42-173-37410	DIAMONDBACK E&P LLC	Oil	48750
42-173-37411	DIAMONDBACK E&P LLC	Oil	48692
42-173-37412	DIAMONDBACK E&P LLC	Oil	48925
42-173-37413	DIAMONDBACK E&P LLC	Oil	48893
42-173-37414	DIAMONDBACK E&P LLC	Oil	48761
42-173-37415	DIAMONDBACK E&P LLC	Oil	49039
42-173-37416	DIAMONDBACK E&P LLC	Oil	48713
42-173-37417	OVINTIV USA INC.	Oil	48421
42-173-37418	OVINTIV USA INC.	Oil	48420
42-173-37419	XTO ENERGY INC.	Oil	38901
42-173-37420	XTO ENERGY INC.	Oil	38901
42-173-37421	XTO ENERGY INC.	Oil	38901
42-173-37422	XTO ENERGY INC.	Oil	38901
42-173-37423	XTO ENERGY INC.	Oil	38901
42-173-37424	XTO ENERGY INC.	Oil	38901
42-173-37425	XTO ENERGY INC.	Oil	38901
42-173-37426	XTO ENERGY INC.	Oil	38901
42-173-37427	XTO ENERGY INC.	Oil	38901
42-173-37428	XTO ENERGY INC.	Oil	38901
42-173-37429	XTO ENERGY INC.	Oil	38901
42-173-37430	Hunt Oil Company	Oil	47431
42-173-37431	PIONEER NATURAL RES. USA, INC.	Oil	50250
42-173-37432	PIONEER NATURAL RES. USA, INC.	Oil	49011
42-173-37433	PIONEER NATURAL RES. USA, INC.	Oil	49217
42-173-37434	PIONEER NATURAL RES. USA, INC.	Oil	49025
42-173-37435	PIONEER NATURAL RES. USA, INC.	Oil	50091
42-173-37436	Hunt Oil Company	Oil	46568
42-173-37437	LAREDO PETROLEUM, INC.
42-173-37438	DISCOVERY NATURAL RESOURCES LLC	Oil	48556
42-173-37439	DISCOVERY NATURAL RESOURCES LLC	Oil	48556
42-173-37440	DISCOVERY NATURAL RESOURCES LLC	Oil	48556
42-173-37441	Hunt Oil Company	Oil	47431
42-173-37442	DIAMONDBACK E&P LLC	Oil	48621
42-173-37443	DIAMONDBACK E&P LLC	Oil	48573
42-173-37444	DIAMONDBACK E&P LLC	Oil	48591
42-173-37445	PARSLEY ENERGY OPERATIONS, LLC	Oil	48602
42-173-37446	PIONEER NATURAL RES. USA, INC.	Gas	283433
42-173-37447	Hunt Oil Company	Oil	46568
42-173-37448	COG OPERATING LLC	Oil	48571
42-173-37449	COG OPERATING LLC	Oil	48571
42-173-37450	DIAMONDBACK E&P LLC	Oil	48496
42-173-37451	LAREDO PETROLEUM, INC.	Oil	44113
42-173-37452	PIONEER NATURAL RES. USA, INC.	Gas	282188
42-173-37453	CINNABAR OPERATING, LLC	Oil	50128
42-173-37454	CROWNQUEST OPERATING, LLC	Oil	42443
42-173-37455	DE OPERATING LLC
42-173-37456	DE OPERATING LLC
42-173-37457	XTO ENERGY INC.	Oil	38901
42-173-37458	COG OPERATING LLC	Oil	49092
42-173-37459	COG OPERATING LLC	Oil	49092
42-173-37460	COG OPERATING LLC	Oil	49092
42-173-37461	COG OPERATING LLC	Oil	49092
42-173-37462	Hunt Oil Company	Oil	47381
42-173-37463	OVINTIV USA INC.	Oil	48890
42-173-37464	OVINTIV USA INC.	Oil	48890
42-173-37465	LAREDO PETROLEUM, INC.	Oil	49000
42-173-37466	Hunt Oil Company	Oil	47381
42-173-37467	LAREDO PETROLEUM, INC.	Oil	49042
42-173-37468	Hunt Oil Company	Oil	47647
42-173-37469	Hunt Oil Company	Oil	47647
42-173-37470	LAREDO PETROLEUM, INC.	Oil	48993
42-173-37471	CINNABAR OPERATING, LLC	Oil	47662
42-173-37472	PIONEER NATURAL RES. USA, INC.	Oil	49059
42-173-37473	PIONEER NATURAL RES. USA, INC.	Oil	49040
42-173-37474	PIONEER NATURAL RES. USA, INC.	Oil	49123
42-173-37475	PIONEER NATURAL RES. USA, INC.	Oil	49623
42-173-37476	PIONEER NATURAL RES. USA, INC.	Oil	50379
42-173-37477	PIONEER NATURAL RES. USA, INC.	Oil	50072
42-173-37478	PIONEER NATURAL RES. USA, INC.	Oil	50213
42-173-37479	PIONEER NATURAL RES. USA, INC.	Oil	51256
42-173-37480	PIONEER NATURAL RES. USA, INC.	Oil	51258
42-173-37481	PIONEER NATURAL RES. USA, INC.	Oil	51259
42-173-37485	DIAMONDBACK E&P LLC	Oil	48958
42-173-37486	PARSLEY ENERGY OPERATIONS, LLC	Oil	46808
42-173-37487	PARSLEY ENERGY OPERATIONS, LLC	Oil	46808
42-173-37488	PARSLEY ENERGY OPERATIONS, LLC	Oil	46808
42-173-37489	PIONEER NATURAL RES. USA, INC.	Oil	42717
42-173-37490	PARSLEY ENERGY OPERATIONS, LLC	Oil	52818
42-173-37491	COG OPERATING LLC	Oil	47633
42-173-37492	COG OPERATING LLC	Oil	47633
42-173-37493	COG OPERATING LLC	Oil	47633
42-173-37494	COG OPERATING LLC	Oil	47633
42-173-37495	COG OPERATING LLC	Oil	47633
42-173-37497	DIAMONDBACK E&P LLC	Oil	50190
42-173-37498	DIAMONDBACK E&P LLC	Oil	50162
42-173-37499	DIAMONDBACK E&P LLC	Oil	50161
42-173-37500	LAREDO PETROLEUM, INC.	Oil	48451
42-173-37501	Apache Corporation	Oil	44331
42-173-37502	LAREDO PETROLEUM, INC.	Oil	48448
42-173-37503	LAREDO PETROLEUM, INC.	Oil	48502
42-173-37504	LAREDO PETROLEUM, INC.	Oil	48332
42-173-37505	DIAMONDBACK E&P LLC
42-173-37506	DIAMONDBACK E&P LLC
42-173-37507	PARSLEY ENERGY OPERATIONS, LLC	Oil	48684
42-173-37508	DIAMONDBACK E&P LLC
42-173-37509	PARSLEY ENERGY OPERATIONS, LLC	Oil	48681
42-173-37510	CROWNQUEST OPERATING, LLC	Oil	50598
42-173-37511	CROWNQUEST OPERATING, LLC	Oil	50598
42-173-37512	XTO ENERGY INC.
42-173-37513	COG OPERATING LLC	Oil	48571
42-173-37514	COG OPERATING LLC	Oil	48571
42-173-37515	COG OPERATING LLC	Oil	48571
42-173-37516	COG OPERATING LLC	Oil	48571
42-173-37517	CROWNQUEST OPERATING, LLC	Oil	48894
42-173-37518	XTO ENERGY INC.	Oil	49005
42-173-37519	PIONEER NATURAL RES. USA, INC.	Oil	50258
42-173-37520	PIONEER NATURAL RES. USA, INC.	Oil	50051
42-173-37521	PIONEER NATURAL RES. USA, INC.	Oil	49532
42-173-37522	DIAMONDBACK E&P LLC	Oil	50160
42-173-37524	DE OPERATING LLC
42-173-37525	DE OPERATING LLC
42-173-37526	PIONEER NATURAL RES. USA, INC.	Oil	49122
42-173-37527	PIONEER NATURAL RES. USA, INC.	Oil	49121
42-173-37528	Apache Corporation	Oil	49135
42-173-37529	CROWNQUEST OPERATING, LLC	Oil	40686
42-173-37530	CINNABAR OPERATING, LLC	Oil	49798
42-173-37531	CINNABAR OPERATING, LLC	Oil	50191
42-173-37532	OVINTIV USA INC.	Oil	48995
42-173-37533	XTO ENERGY INC.	Oil	49005
42-173-37534	Hunt Oil Company	Oil	48211
42-173-37535	Hunt Oil Company	Oil	48211
42-173-37536	Hunt Oil Company	Oil	48214
42-173-37537	Hunt Oil Company	Oil	46573
42-173-37538	XTO ENERGY INC.	Oil	38900
42-173-37539	XTO ENERGY INC.	Oil	38900
42-173-37540	DE OPERATING LLC
42-173-37541	XTO ENERGY INC.	Oil	49005
42-173-37542	LAREDO PETROLEUM, INC.	Oil	49785
42-173-37543	LAREDO PETROLEUM, INC.	Oil	49782
42-173-37544	LAREDO PETROLEUM, INC.	Oil	49783
42-173-37545	LAREDO PETROLEUM, INC.	Oil	49601
42-173-37546	LAREDO PETROLEUM, INC.	Oil	49681
42-173-37547	XTO ENERGY INC.	Oil	49005
42-173-37548	LAREDO PETROLEUM, INC.	Oil	49782
42-173-37549	XTO ENERGY INC.	Oil	38900
42-173-37550	XTO ENERGY INC.	Oil	49005
42-173-37551	XTO ENERGY INC.	Oil	49005
42-173-37552	XTO ENERGY INC.	Oil	38900
42-173-37553	PIONEER NATURAL RES. USA, INC.	Oil	52999
42-173-37554	PIONEER NATURAL RES. USA, INC.	Oil	53001
42-173-37555	DIAMONDBACK E&P LLC	Oil	49131
42-173-37556	RUGER PROPERTIES, LLC
42-173-37557	DIAMONDBACK E&P LLC	Oil	49491
42-173-37558	DIAMONDBACK E&P LLC	Oil	50977
42-173-37559	DIAMONDBACK E&P LLC	Oil	50819
42-173-37560	XTO ENERGY INC.	Oil	49005
42-173-37561	XTO ENERGY INC.	Oil	49005
42-173-37562	XTO ENERGY INC.	Oil	49005
42-173-37563	Hunt Oil Company	Oil	49433
42-173-37564	Hunt Oil Company	Oil	49433
42-173-37565	Hunt Oil Company	Oil	49433
42-173-37566	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-37567	PARSLEY ENERGY OPERATIONS, LLC	Oil	50663
42-173-37568	PARSLEY ENERGY OPERATIONS, LLC	Oil	50663
42-173-37569	PARSLEY ENERGY OPERATIONS, LLC	Oil	50663
42-173-37570	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-37571	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-37572	DIAMONDBACK E&P LLC	Oil	50349
42-173-37573	DIAMONDBACK E&P LLC	Oil	50517
42-173-37574	DIAMONDBACK E&P LLC	Oil	50349
42-173-37575	DIAMONDBACK E&P LLC	Oil	50357
42-173-37576	DIAMONDBACK E&P LLC	Oil	50357
42-173-37577	CINNABAR OPERATING, LLC	Oil	51552
42-173-37578	CINNABAR OPERATING, LLC	Oil	52241
42-173-37579	PARSLEY ENERGY OPERATIONS, LLC	Oil	50513
42-173-37580	PARSLEY ENERGY OPERATIONS, LLC	Oil	50513
42-173-37581	PARSLEY ENERGY OPERATIONS, LLC	Oil	50513
42-173-37582	OVINTIV USA INC.	Oil	48995
42-173-37583	DIAMONDBACK E&P LLC	Oil	50578
42-173-37584	DIAMONDBACK E&P LLC	Oil	50578
42-173-37585	DIAMONDBACK E&P LLC	Oil	50629
42-173-37586	DIAMONDBACK E&P LLC	Oil	50592
42-173-37587	DIAMONDBACK E&P LLC	Oil	50592
42-173-37588	PARSLEY ENERGY OPERATIONS, LLC	Oil	50632
42-173-37589	PARSLEY ENERGY OPERATIONS, LLC	Oil	50632
42-173-37590	DIAMONDBACK E&P LLC	Oil	49651
42-173-37591	DIAMONDBACK E&P LLC	Oil	49641
42-173-37592	LAREDO PETROLEUM, INC.	Oil	49407
42-173-37593	LAREDO PETROLEUM, INC.	Oil	49666
42-173-37594	COG OPERATING LLC	Oil	49857
42-173-37595	COG OPERATING LLC	Oil	49857
42-173-37596	CINNABAR OPERATING, LLC
42-173-37597	CINNABAR OPERATING, LLC
42-173-37598	CINNABAR OPERATING, LLC	Oil	51553
42-173-37599	Hunt Oil Company	Oil	49767
42-173-37600	PARSLEY ENERGY OPERATIONS, LLC	Oil	50652
42-173-37601	DIAMONDBACK E&P LLC	Oil	51763
42-173-37602	DIAMONDBACK E&P LLC	Oil	51631
42-173-37603	DIAMONDBACK E&P LLC	Oil	51614
42-173-37604	PARSLEY ENERGY OPERATIONS, LLC	Oil	50652
42-173-37605	PARSLEY ENERGY OPERATIONS, LLC	Oil	50652
42-173-37606	CINNABAR OPERATING, LLC	Oil	49990
42-173-37607	CINNABAR OPERATING, LLC	Oil	49990
42-173-37608	CROWNQUEST OPERATING, LLC	Oil	46713
42-173-37609	DIAMONDBACK E&P LLC	Oil	51342
42-173-37610	DIAMONDBACK E&P LLC	Oil	51850
42-173-37611	DIAMONDBACK E&P LLC	Oil	51293
42-173-37612	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-37613	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-37614	ENERGEN RESOURCES CORPORATION
42-173-37615	Hunt Oil Company	Oil	51128
42-173-37616	LAREDO PETROLEUM, INC.	Oil	50715
42-173-37617	LAREDO PETROLEUM, INC.	Oil	50561
42-173-37618	GOODNIGHT MIDSTREAM PERMIAN, LLC	Oil	48916
42-173-37619	XTO ENERGY INC.	Oil	52981
42-173-37620	XTO ENERGY INC.	Oil	49005
42-173-37621	PARSLEY ENERGY OPERATIONS, LLC	Oil	51418
42-173-37622	XTO ENERGY INC.	Oil	49005
42-173-37623	PARSLEY ENERGY OPERATIONS, LLC	Oil	51418
42-173-37624	PARSLEY ENERGY OPERATIONS, LLC	Oil	51418
42-173-37625	LAREDO PETROLEUM, INC.	Oil	49000
42-173-37626	XTO ENERGY INC.	Oil	49005
42-173-37627	LAREDO PETROLEUM, INC.	Oil	50435
42-173-37628	TRILOGY OPERATING, INC.	Oil	51029
42-173-37629	CROWNQUEST OPERATING, LLC	Oil	49377
42-173-37630	CINNABAR OPERATING, LLC	Oil	52159
42-173-37631	CINNABAR OPERATING, LLC
42-173-37632	CINNABAR OPERATING, LLC	Oil	47663
42-173-37633	OVINTIV USA INC.	Oil	49871
42-173-37634	OVINTIV USA INC.	Oil	49871
42-173-37635	OVINTIV USA INC.	Oil	49871
42-173-37636	OVINTIV USA INC.	Oil	49894
42-173-37637	Hunt Oil Company	Oil	49767
42-173-37638	Hunt Oil Company	Oil	49767
42-173-37639	OVINTIV USA INC.	Oil	49894
42-173-37640	OVINTIV USA INC.	Oil	49894
42-173-37641	DIAMONDBACK E&P LLC	Oil	49855
42-173-37642	OVINTIV USA INC.	Oil	50021
42-173-37643	OVINTIV USA INC.	Oil	50114
42-173-37644	OVINTIV USA INC.	Oil	48995
42-173-37645	OVINTIV USA INC.	Oil	50114
42-173-37646	Hunt Oil Company	Oil	49941
42-173-37647	Hunt Oil Company	Oil	49941
42-173-37648	CROWNQUEST OPERATING, LLC	Oil	51017
42-173-37649	Hunt Oil Company	Oil	49941
42-173-37650	LAREDO PETROLEUM, INC.	Oil	43545
42-173-37651	LAREDO PETROLEUM, INC.	Oil	43545
42-173-37652	LAREDO PETROLEUM, INC.	Oil	43545
42-173-37653	AQUA TERRA PERMIAN, LLC	Oil	47965
42-173-37654	LAREDO PETROLEUM, INC.	Oil	49997
42-173-37655	LAREDO PETROLEUM, INC.	Oil	49985
42-173-37656	OVINTIV USA INC.	Oil	50116
42-173-37657	OVINTIV USA INC.	Oil	50116
42-173-37658	OXY USA INC.	Oil	42451
42-173-37659	OVINTIV USA INC.	Oil	50170
42-173-37660	OXY USA INC.	Oil	50427
42-173-37661	OXY USA INC.	Oil	50427
42-173-37662	PARSLEY ENERGY OPERATIONS, LLC	Oil	51851
42-173-37663	PARSLEY ENERGY OPERATIONS, LLC	Oil	51851
42-173-37664	PARSLEY ENERGY OPERATIONS, LLC	Oil	51851
42-173-37665	CROWNQUEST OPERATING, LLC	Oil	40966
42-173-37666	CROWNQUEST OPERATING, LLC
42-173-37667	TRILOGY OPERATING, INC.
42-173-37668	Hunt Oil Company	Oil	49999
42-173-37669	Hunt Oil Company	Oil	49999
42-173-37670	Hunt Oil Company	Oil	49999
42-173-37671	Hunt Oil Company	Oil	50142
42-173-37672	PARSLEY ENERGY OPERATIONS, LLC	Oil	50749
42-173-37673	PARSLEY ENERGY OPERATIONS, LLC	Oil	51369
42-173-37674	Hunt Oil Company	Oil	50142
42-173-37675	Hunt Oil Company	Oil	50142
42-173-37676	CROWNQUEST OPERATING, LLC	Oil	53952
42-173-37677	CINNABAR OPERATING, LLC	Oil	47663
42-173-37678	CROWNQUEST OPERATING, LLC	Oil	49445
42-173-37679	COG OPERATING LLC	Oil	49092
42-173-37680	COG OPERATING LLC	Oil	49092
42-173-37681	COG OPERATING LLC	Oil	49092
42-173-37682	PARSLEY ENERGY OPERATIONS, LLC	Oil	50991
42-173-37683	PARSLEY ENERGY OPERATIONS, LLC	Oil	50991
42-173-37684	PARSLEY ENERGY OPERATIONS, LLC	Oil	50991
42-173-37685	COG OPERATING LLC	Oil	49092
42-173-37686	DIAMONDBACK E&P LLC	Oil	50497
42-173-37687	PARSLEY ENERGY OPERATIONS, LLC
42-173-37688	PARSLEY ENERGY OPERATIONS, LLC
42-173-37689	PARSLEY ENERGY OPERATIONS, LLC
42-173-37690	DIAMONDBACK E&P LLC	Oil	51380
42-173-37691	DIAMONDBACK E&P LLC	Oil	51339
42-173-37692	DIAMONDBACK E&P LLC	Oil	51338
42-173-37693	DIAMONDBACK E&P LLC	Oil	51337
42-173-37694	PARSLEY ENERGY OPERATIONS, LLC
42-173-37695	PARSLEY ENERGY OPERATIONS, LLC
42-173-37696	PARSLEY ENERGY OPERATIONS, LLC
42-173-37697	PARSLEY ENERGY OPERATIONS, LLC
42-173-37698	PARSLEY ENERGY OPERATIONS, LLC	Oil	49822
42-173-37699	PIONEER NATURAL RES. USA, INC.	Oil	50754
42-173-37700	LAREDO PETROLEUM, INC.	Oil	50135
42-173-37701	PIONEER NATURAL RES. USA, INC.	Oil	50800
42-173-37702	PIONEER NATURAL RES. USA, INC.	Oil	50801
42-173-37703	PIONEER NATURAL RES. USA, INC.	Oil	51595
42-173-37704	PIONEER NATURAL RES. USA, INC.	Oil	51811
42-173-37705	TRILOGY OPERATING, INC.
42-173-37706	LAREDO PETROLEUM, INC.	Oil	50011
42-173-37707	LAREDO PETROLEUM, INC.	Oil	50082
42-173-37708	LAREDO PETROLEUM, INC.	Oil	50093
42-173-37709	TRILOGY OPERATING, INC.	Oil	49401
42-173-37710	PIONEER NATURAL RES. USA, INC.	Oil	50896
42-173-37711	PIONEER NATURAL RES. USA, INC.	Oil	50898
42-173-37712	PIONEER NATURAL RES. USA, INC.	Oil	50889
42-173-37713	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-37714	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-37715	PARSLEY ENERGY OPERATIONS, LLC	Oil	51009
42-173-37716	PARSLEY ENERGY OPERATIONS, LLC	Oil	51009
42-173-37717	PARSLEY ENERGY OPERATIONS, LLC	Oil	51009
42-173-37718	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-37719	Hunt Oil Company	Oil	50548
42-173-37720	Hunt Oil Company	Oil	50548
42-173-37721	Hunt Oil Company	Oil	50548
42-173-37722	LAREDO PETROLEUM, INC.	Oil	50561
42-173-37723	CINNABAR OPERATING, LLC
42-173-37724	COG OPERATING LLC	Oil	49857
42-173-37725	COG OPERATING LLC	Oil	49857
42-173-37726	COG OPERATING LLC	Oil	49857
42-173-37727	COG OPERATING LLC	Oil	49857
42-173-37728	COG OPERATING LLC	Oil	49857
42-173-37729	COG OPERATING LLC	Oil	49857
42-173-37730	PIONEER NATURAL RES. USA, INC.
42-173-37731	PIONEER NATURAL RES. USA, INC.
42-173-37732	PIONEER NATURAL RES. USA, INC.
42-173-37733	PIONEER NATURAL RES. USA, INC.
42-173-37734	PIONEER NATURAL RES. USA, INC.
42-173-37735	PIONEER NATURAL RES. USA, INC.
42-173-37736	LAREDO PETROLEUM, INC.	Oil	50927
42-173-37737	CROWNQUEST OPERATING, LLC	Oil	46902
42-173-37738	XTO ENERGY INC.	Oil	38900
42-173-37739	XTO ENERGY INC.	Oil	38900
42-173-37740	XTO ENERGY INC.	Oil	38900
42-173-37741	XTO ENERGY INC.	Oil	38900
42-173-37742	XTO ENERGY INC.	Oil	38900
42-173-37743	XTO ENERGY INC.	Oil	38900
42-173-37744	XTO ENERGY INC.	Oil	38900
42-173-37745	XTO ENERGY INC.	Oil	38900
42-173-37746	XTO ENERGY INC.	Oil	38900
42-173-37747	XTO ENERGY INC.	Oil	38900
42-173-37748	XTO ENERGY INC.	Oil	38900
42-173-37749	XTO ENERGY INC.	Oil	38900
42-173-37750	XTO ENERGY INC.	Oil	38900
42-173-37751	XTO ENERGY INC.	Oil	38900
42-173-37752	Hunt Oil Company	Oil	50541
42-173-37753	LAREDO PETROLEUM, INC.	Oil	50979
42-173-37754	LAREDO PETROLEUM, INC.	Oil	50907
42-173-37755	LAREDO PETROLEUM, INC.	Oil	50841
42-173-37756	LAREDO PETROLEUM, INC.	Oil	50841
42-173-37757	LAREDO PETROLEUM, INC.	Oil	50901
42-173-37758	PIONEER NATURAL RES. USA, INC.	Oil	51082
42-173-37759	PIONEER NATURAL RES. USA, INC.	Oil	51068
42-173-37760	PIONEER NATURAL RES. USA, INC.	Oil	51069
42-173-37761	PIONEER NATURAL RES. USA, INC.
42-173-37762	PIONEER NATURAL RES. USA, INC.
42-173-37763	LAREDO PETROLEUM, INC.	Oil	50901
42-173-37764	LAREDO PETROLEUM, INC.	Oil	50344
42-173-37765	LAREDO PETROLEUM, INC.	Oil	50344
42-173-37766	CINNABAR OPERATING, LLC
42-173-37767	Hunt Oil Company	Oil	50541
42-173-37768	Hunt Oil Company	Oil	50541
42-173-37769	Hunt Oil Company	Oil	50733
42-173-37770	Hunt Oil Company	Oil	50733
42-173-37771	CINNABAR OPERATING, LLC	Oil	47663
42-173-37772	CINNABAR OPERATING, LLC	Oil	47663
42-173-37773	Hunt Oil Company	Oil	50733
42-173-37774	CROWNQUEST OPERATING, LLC	Oil	50186
42-173-37775	PARSLEY ENERGY OPERATIONS, LLC	Oil	51398
42-173-37776	PARSLEY ENERGY OPERATIONS, LLC	Oil	51398
42-173-37777	PARSLEY ENERGY OPERATIONS, LLC	Oil	51398
42-173-37778	PARSLEY ENERGY OPERATIONS, LLC	Oil	51616
42-173-37779	Hunt Oil Company	Oil	51040
42-173-37780	CROWNQUEST OPERATING, LLC	Oil	42443
42-173-37781	COG OPERATING LLC	Oil	48571
42-173-37782	COG OPERATING LLC	Oil	48571
42-173-37783	COG OPERATING LLC	Oil	48571
42-173-37784	Hunt Oil Company	Oil	51040
42-173-37785	COG OPERATING LLC	Oil	48571
42-173-37786	Hunt Oil Company	Oil	51040
42-173-37787	OXY USA INC.	Oil	50427
42-173-37788	OXY USA INC.	Oil	50427
42-173-37789	OXY USA INC.	Oil	50427
42-173-37790	OXY USA INC.
42-173-37791	OXY USA INC.
42-173-37792	OXY USA INC.	Oil	50427
42-173-37793	OXY USA INC.	Oil	50427
42-173-37794	OXY USA INC.
42-173-37795	OXY USA INC.
42-173-37796	CROWNQUEST OPERATING, LLC
42-173-37797	OXY USA INC.
42-173-37798	DIAMONDBACK E&P LLC	Oil	50518
42-173-37799	COG OPERATING LLC	Oil	37789
42-173-37800	OXY USA INC.
42-173-37801	OXY USA INC.
42-173-37802	OXY USA INC.	Oil	50427
42-173-37803	OXY USA INC.	Oil	50427
42-173-37804	OXY USA INC.	Oil	50427
42-173-37805	DIAMONDBACK E&P LLC	Oil	50504
42-173-37806	Hunt Oil Company	Oil	50634
42-173-37807	Hunt Oil Company	Oil	50853
42-173-37808	Hunt Oil Company	Oil	50853
42-173-37809	Hunt Oil Company	Oil	50853
42-173-37810	Hunt Oil Company	Oil	50853
42-173-37811	Hunt Oil Company	Oil	50634
42-173-37812	Hunt Oil Company	Oil	50634
42-173-37813	CROWNQUEST OPERATING, LLC	Oil	51172
42-173-37814	OXY USA INC.
42-173-37815	GOODNIGHT MIDSTREAM PERMIAN, LLC	Oil	49992
42-173-37816	TRILOGY OPERATING, INC.	Oil	51174
42-173-37817	Hunt Oil Company	Oil	51128
42-173-37818	Hunt Oil Company	Oil	51128
42-173-37819	Hunt Oil Company	Oil	49433
42-173-37820	CROWNQUEST OPERATING, LLC	Oil	50671
42-173-37821	CROWNQUEST OPERATING, LLC	Oil	50624
42-173-37822	MILESTONE ENVIRO SERVICES, LLC	Oil	49806
42-173-37823	Hunt Oil Company	Oil	51040
42-173-37824
42-173-37825	PIONEER NATURAL RES. USA, INC.	Oil	51296
42-173-37826	PIONEER NATURAL RES. USA, INC.	Oil	51297
42-173-37827	PIONEER NATURAL RES. USA, INC.	Oil	51298
42-173-37828	PIONEER NATURAL RES. USA, INC.	Oil	51301
42-173-37829	PIONEER NATURAL RES. USA, INC.	Oil	51302
42-173-37830	CROWNQUEST OPERATING, LLC	Oil	46902
42-173-37831	Hunt Oil Company	Oil	51128
42-173-37832	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-37833	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-37834	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-37835	PARSLEY ENERGY OPERATIONS, LLC	Oil	51121
42-173-37836	PARSLEY ENERGY OPERATIONS, LLC	Oil	53680
42-173-37837	ENDEAVOR ENERGY RESOURCES L.P.	Oil	51393
42-173-37838	ENDEAVOR ENERGY RESOURCES L.P.	Oil	51393
42-173-37839	ENDEAVOR ENERGY RESOURCES L.P.	Oil	51393
42-173-37840	COG OPERATING LLC
42-173-37841	PARSLEY ENERGY OPERATIONS, LLC	Oil	51139
42-173-37842	PARSLEY ENERGY OPERATIONS, LLC	Oil	51140
42-173-37843	PARSLEY ENERGY OPERATIONS, LLC	Oil	51294
42-173-37844	DIAMONDBACK E&P LLC	Oil	51493
42-173-37845	DIAMONDBACK E&P LLC	Oil	51494
42-173-37846	DIAMONDBACK E&P LLC	Oil	51488
42-173-37847	DIAMONDBACK E&P LLC	Oil	51495
42-173-37848	COG OPERATING LLC
42-173-37849	COG OPERATING LLC
42-173-37850	COG OPERATING LLC
42-173-37851	PARSLEY ENERGY OPERATIONS, LLC	Oil	51294
42-173-37852	PARSLEY ENERGY OPERATIONS, LLC	Oil	51591
42-173-37853	PARSLEY ENERGY OPERATIONS, LLC	Oil	51591
42-173-37854	PARSLEY ENERGY OPERATIONS, LLC	Oil	51591
42-173-37855	PIONEER NATURAL RES. USA, INC.	Oil	53808
42-173-37856	PIONEER NATURAL RES. USA, INC.	Oil	53556
42-173-37857	CINNABAR OPERATING, LLC
42-173-37858	PARSLEY ENERGY OPERATIONS, LLC
42-173-37859	LAREDO PETROLEUM, INC.	Oil	51274
42-173-37860	LAREDO PETROLEUM, INC.	Oil	51274
42-173-37861	LAREDO PETROLEUM, INC.	Oil	51362
42-173-37862	LAREDO PETROLEUM, INC.	Oil	51458
42-173-37863	LAREDO PETROLEUM, INC.	Oil	51458
42-173-37864	LAREDO PETROLEUM, INC.	Oil	51459
42-173-37865	LAREDO PETROLEUM, INC.	Oil	51460
42-173-37866	LAREDO PETROLEUM, INC.	Oil	51461
42-173-37867	CROWNQUEST OPERATING, LLC	Oil	40686
42-173-37868	PARSLEY ENERGY OPERATIONS, LLC	Oil	51578
42-173-37869	LAREDO PETROLEUM, INC.	Oil	51934
42-173-37872	LAREDO PETROLEUM, INC.	Oil	51959
42-173-37873	CINNABAR OPERATING, LLC
42-173-37875	PARSLEY ENERGY OPERATIONS, LLC
42-173-37876	PARSLEY ENERGY OPERATIONS, LLC
42-173-37877	OXY USA INC.	Oil	42451
42-173-37878	DIAMONDBACK E&P LLC	Oil	53202
42-173-37879	DIAMONDBACK E&P LLC	Oil	51995
42-173-37880	DIAMONDBACK E&P LLC	Oil	52783
42-173-37881	DIAMONDBACK E&P LLC	Oil	52570
42-173-37882	DIAMONDBACK E&P LLC	Oil	50878
42-173-37883	DIAMONDBACK E&P LLC	Oil	50912
42-173-37884	OXY USA INC.	Oil	42451
42-173-37885	ENDEAVOR ENERGY RESOURCES L.P.	Oil	51247
42-173-37886	ENDEAVOR ENERGY RESOURCES L.P.	Oil	51317
42-173-37887	ENDEAVOR ENERGY RESOURCES L.P.	Oil	51317
42-173-37888	XTO ENERGY INC.	Oil	51367
42-173-37889	OXY USA INC.	Oil	42451
42-173-37890	OXY USA INC.	Oil	42451
42-173-37891	XTO ENERGY INC.	Oil	51321
42-173-37892	PIONEER NATURAL RES. USA, INC.	Oil	48500
42-173-37893	PIONEER NATURAL RES. USA, INC.	Oil	48500
42-173-37894	OXY USA INC.	Oil	52810
42-173-37895	OXY USA INC.	Oil	52803
42-173-37896	OXY USA INC.	Oil	52804
42-173-37897	OXY USA INC.	Oil	52805
42-173-37898	OXY USA INC.	Oil	52806
42-173-37899	CROWNQUEST OPERATING, LLC	Oil	50598
42-173-37900	CROWNQUEST OPERATING, LLC	Oil	51889
42-173-37901	CROWNQUEST OPERATING, LLC	Oil	51436
42-173-37902	XTO ENERGY INC.	Oil	51681
42-173-37903	DE3 OPERATING LLC	Oil	51546
42-173-37904	DE3 OPERATING LLC	Oil	51546
42-173-37905	DE3 OPERATING LLC	Oil	51546
42-173-37906	Hunt Oil Company	Oil	51467
42-173-37907	DE3 OPERATING LLC	Oil	53145
42-173-37908	CROWNQUEST OPERATING, LLC
42-173-37909	DE3 OPERATING LLC	Oil	53145
42-173-37910	DE3 OPERATING LLC	Oil	53145
42-173-37911	DE3 OPERATING LLC	Oil	53145
42-173-37912	DE3 OPERATING LLC
42-173-37913	DE3 OPERATING LLC
42-173-37914	DE3 OPERATING LLC
42-173-37915	CINNABAR OPERATING, LLC
42-173-37916	COG OPERATING LLC	Oil	49092
42-173-37917	COG OPERATING LLC	Oil	49092
42-173-37918	COG OPERATING LLC	Oil	49092
42-173-37919	COG OPERATING LLC	Oil	49092
42-173-37920	COG OPERATING LLC	Oil	49092
42-173-37921	COG OPERATING LLC	Oil	49092
42-173-37922	COG OPERATING LLC
42-173-37923	COG OPERATING LLC
42-173-37924	COG OPERATING LLC
42-173-37925	COG OPERATING LLC
42-173-37926	COG OPERATING LLC
42-173-37927	COG OPERATING LLC
42-173-37929	ENERGEN RESOURCES CORPORATION
42-173-37930	DIAMONDBACK E&P LLC	Oil	52662
42-173-37931	DIAMONDBACK E&P LLC	Oil	52639
42-173-37932	DIAMONDBACK E&P LLC	Oil	52662
42-173-37933	DIAMONDBACK E&P LLC	Oil	52639
42-173-37934	DIAMONDBACK E&P LLC	Oil	52663
42-173-37935	ENERGEN RESOURCES CORPORATION
42-173-37936	COG OPERATING LLC	Oil	52463
42-173-37937	ENERGEN RESOURCES CORPORATION
42-173-37938	ENERGEN RESOURCES CORPORATION
42-173-37939	ENERGEN RESOURCES CORPORATION
42-173-37940	COG OPERATING LLC	Oil	47455
42-173-37941	COG OPERATING LLC	Oil	47455
42-173-37942	COG OPERATING LLC	Oil	47455
42-173-37943	COG OPERATING LLC	Oil	48571
42-173-37944	Hunt Oil Company	Oil	52304
42-173-37945	Hunt Oil Company	Oil	52304
42-173-37946	Hunt Oil Company	Oil	52304
42-173-37947	Hunt Oil Company	Oil	52462
42-173-37948	Hunt Oil Company	Oil	52462
42-173-37949	Hunt Oil Company	Oil	52304
42-173-37950	Hunt Oil Company	Oil	52462
42-173-37951	Hunt Oil Company	Oil	52462
42-173-37952	CROWNQUEST OPERATING, LLC	Oil	51932
42-173-37953	PARSLEY ENERGY OPERATIONS, LLC
42-173-37954	PARSLEY ENERGY OPERATIONS, LLC	Oil	54504
42-173-37955	PARSLEY ENERGY OPERATIONS, LLC
42-173-37956	CROWNQUEST OPERATING, LLC	Oil	51525
42-173-37957	CROWNQUEST OPERATING, LLC	Oil	51525
42-173-37958	PARSLEY ENERGY OPERATIONS, LLC	Oil	52410
42-173-37959	PARSLEY ENERGY OPERATIONS, LLC	Oil	52410
42-173-37960	PARSLEY ENERGY OPERATIONS, LLC	Oil	52410
42-173-37961	TRILOGY OPERATING, INC.	Oil	49395
42-173-37962	PIONEER NATURAL RES. USA, INC.	Oil	53051
42-173-37963	PIONEER NATURAL RES. USA, INC.	Oil	53052
42-173-37964	PIONEER NATURAL RES. USA, INC.	Oil	53067
42-173-37965	PIONEER NATURAL RES. USA, INC.
42-173-37966	PIONEER NATURAL RES. USA, INC.
42-173-37967	PARSLEY ENERGY OPERATIONS, LLC	Oil	53921
42-173-37968	PARSLEY ENERGY OPERATIONS, LLC	Oil	53976
42-173-37969	PARSLEY ENERGY OPERATIONS, LLC
42-173-37970	PIONEER NATURAL RES. USA, INC.
42-173-37971	ENERGEN RESOURCES CORPORATION
42-173-37972	Hunt Oil Company	Oil	52565
42-173-37973	Hunt Oil Company	Oil	52565
42-173-37974	Hunt Oil Company	Oil	52565
42-173-37975	DIAMONDBACK E&P LLC	Oil
42-173-37976	DIAMONDBACK E&P LLC	Oil
42-173-37977	Hunt Oil Company	Oil	52565
42-173-37979	Hunt Oil Company	Oil	52461
42-173-37980	Hunt Oil Company	Oil	52461
42-173-37981	Hunt Oil Company	Oil	52461
42-173-37982	Hunt Oil Company	Oil	52461
42-173-37983	ENERGEN RESOURCES CORPORATION
42-173-37984	DIAMONDBACK E&P LLC	Oil
42-173-37985	AQUA TERRA PERMIAN, LLC	Oil	51324
42-173-37986	DIAMONDBACK E&P LLC	Oil
42-173-37987	DIAMONDBACK E&P LLC	Oil	53766
42-173-37988	DIAMONDBACK E&P LLC	Oil	53698
42-173-37989	DIAMONDBACK E&P LLC	Oil	53805
42-173-37990	PARSLEY ENERGY OPERATIONS, LLC	Oil	52508
42-173-37991	PARSLEY ENERGY OPERATIONS, LLC	Oil	52825
42-173-37992	TRILOGY OPERATING, INC.	Oil	49432
42-173-37993	DIAMONDBACK E&P LLC	Oil	53677
42-173-37994	DIAMONDBACK E&P LLC	Oil	54307
42-173-37995	Hunt Oil Company
42-173-37996	Hunt Oil Company
42-173-37997	Hunt Oil Company	Oil	50541
42-173-37998	ENERGEN RESOURCES CORPORATION
42-173-37999	ENERGEN RESOURCES CORPORATION
42-173-38000	Hunt Oil Company	Oil	50142
42-173-38001	Hunt Oil Company	Oil	50548
42-173-38002	XTO ENERGY INC.	Oil	52730
42-173-38003	DE3 OPERATING LLC	Oil	51018
42-173-38004	PARSLEY ENERGY OPERATIONS, LLC
42-173-38005	PARSLEY ENERGY OPERATIONS, LLC
42-173-38006	PARSLEY ENERGY OPERATIONS, LLC
42-173-38007	DE3 OPERATING LLC	Oil	52499
42-173-38008	DE3 OPERATING LLC	Oil	52499
42-173-38009	DE3 OPERATING LLC	Oil	52499
42-173-38010	DE3 OPERATING LLC	Oil	52499
42-173-38011	LAREDO PETROLEUM, INC.	Oil	52626
42-173-38012	Hunt Oil Company	Oil	49999
42-173-38013	XTO ENERGY INC.	Oil	52730
42-173-38014	Hunt Oil Company	Oil	49941
42-173-38015	PARSLEY ENERGY OPERATIONS, LLC
42-173-38016	PARSLEY ENERGY OPERATIONS, LLC
42-173-38017	PARSLEY ENERGY OPERATIONS, LLC
42-173-38018	PARSLEY ENERGY OPERATIONS, LLC
42-173-38019	PARSLEY ENERGY OPERATIONS, LLC	Oil	53331
42-173-38020	PARSLEY ENERGY OPERATIONS, LLC	Oil	53442
42-173-38021	PARSLEY ENERGY OPERATIONS, LLC	Oil	53341
42-173-38022	DIAMONDBACK E&P LLC	Oil	53697
42-173-38023	ENERGEN RESOURCES CORPORATION
42-173-38024	LAREDO PETROLEUM, INC.	Oil	52075
42-173-38025	LAREDO PETROLEUM, INC.	Oil	52284
42-173-38026	LAREDO PETROLEUM, INC.	Oil	52112
42-173-38027	PARSLEY ENERGY OPERATIONS, LLC
42-173-38028	LAREDO PETROLEUM, INC.	Oil	52113
42-173-38029	PARSLEY ENERGY OPERATIONS, LLC
42-173-38030	LAREDO PETROLEUM, INC.	Oil	52102
42-173-38031	LAREDO PETROLEUM, INC.	Oil	52103
42-173-38032	LAREDO PETROLEUM, INC.	Oil	52114
42-173-38033	LAREDO PETROLEUM, INC.	Oil	52115
42-173-38034	MCCLURE OIL COMPANY, INC.
42-173-38035	MCCLURE OIL COMPANY, INC.
42-173-38036	PIONEER NATURAL RES. USA, INC.	Oil	52497
42-173-38037	PIONEER NATURAL RES. USA, INC.	Oil	52569
42-173-38038	PIONEER NATURAL RES. USA, INC.	Oil	52560
42-173-38039	PIONEER NATURAL RES. USA, INC.	Oil	52571
42-173-38040	PIONEER NATURAL RES. USA, INC.	Oil	52635
42-173-38041	COG OPERATING LLC
42-173-38042	DIAMONDBACK E&P LLC	Oil	52915
42-173-38043	DIAMONDBACK E&P LLC	Oil	53033
42-173-38044	DIAMONDBACK E&P LLC	Oil	52992
42-173-38045	PARSLEY ENERGY OPERATIONS, LLC
42-173-38046	PARSLEY ENERGY OPERATIONS, LLC
42-173-38047	PARSLEY ENERGY OPERATIONS, LLC
42-173-38048	PARSLEY ENERGY OPERATIONS, LLC
42-173-38049	PARSLEY ENERGY OPERATIONS, LLC
42-173-38050	PARSLEY ENERGY OPERATIONS, LLC
42-173-38051	PARSLEY ENERGY OPERATIONS, LLC
42-173-38052	CROWNQUEST OPERATING, LLC	Oil	50598
42-173-38055	LAREDO PETROLEUM, INC.	Oil	52354
42-173-38056	LAREDO PETROLEUM, INC.	Oil	52405
42-173-38057	LAREDO PETROLEUM, INC.
42-173-38058	LAREDO PETROLEUM, INC.	Oil	52306
42-173-38059	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-38060	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-38061	DE3 OPERATING LLC	Oil	52499
42-173-38062	DE3 OPERATING LLC	Oil	52499
42-173-38063	DE3 OPERATING LLC	Oil	52499
42-173-38064	DE3 OPERATING LLC	Oil	52499
42-173-38065	DE3 OPERATING LLC	Oil	52499
42-173-38066	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-38067	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-38068	CROWNQUEST OPERATING, LLC	Oil	50649
42-173-38069	DE3 OPERATING LLC	Oil	52499
42-173-38070	DE3 OPERATING LLC	Oil	52499
42-173-38071	DE3 OPERATING LLC	Oil	52499
42-173-38072	DE3 OPERATING LLC
42-173-38073	DE3 OPERATING LLC	Oil	52499
42-173-38074	DE3 OPERATING LLC	Oil	52499
42-173-38075	DE3 OPERATING LLC	Oil	52499
42-173-38076	Hunt Oil Company
42-173-38077	Hunt Oil Company	Oil	53624
42-173-38078	Hunt Oil Company	Oil	53624
42-173-38079	Hunt Oil Company	Oil	53624
42-173-38080	Hunt Oil Company	Oil	54169
42-173-38081	Hunt Oil Company	Oil	54169
42-173-38082	Hunt Oil Company	Oil	53637
42-173-38083	Hunt Oil Company	Oil	53637
42-173-38084	Hunt Oil Company	Oil	53637
42-173-38085	Hunt Oil Company	Oil	53850
42-173-38086	DIAMONDBACK E&P LLC	Oil	53190
42-173-38087	Hunt Oil Company	Oil	53850
42-173-38088	Hunt Oil Company	Oil	53850
42-173-38089	MEWBOURNE OIL COMPANY	Oil	52303
42-173-38090	LAREDO PETROLEUM, INC.	Oil	52296
42-173-38091	DIAMONDBACK E&P LLC	Oil	52988
42-173-38092	LAREDO PETROLEUM, INC.	Oil	48002
42-173-38093	LAREDO PETROLEUM, INC.	Oil	19385
42-173-38094	DIAMONDBACK E&P LLC	Oil	53002
42-173-38095	COG OPERATING LLC	Oil	48571
42-173-38096	COG OPERATING LLC	Oil	48571
42-173-38097	CROWNQUEST OPERATING, LLC	Oil	52828
42-173-38098	Hunt Oil Company	Oil	52684
42-173-38099	Hunt Oil Company	Oil	52684
42-173-38100	Hunt Oil Company	Oil	52684
42-173-38101	Hunt Oil Company	Oil	52895
42-173-38102	Hunt Oil Company	Oil	52895
42-173-38103	Hunt Oil Company	Oil	52895
42-173-38104	DIAMONDBACK E&P LLC	Oil	53534
42-173-38105	Hunt Oil Company	Oil	53113
42-173-38106	Hunt Oil Company	Oil	53113
42-173-38107	DIAMONDBACK E&P LLC
42-173-38108	Hunt Oil Company	Oil	53113
42-173-38109	Hunt Oil Company	Oil	53175
42-173-38110	Hunt Oil Company	Oil	53175
42-173-38111	Hunt Oil Company	Oil	53175
42-173-38112	MEWBOURNE OIL COMPANY	Oil	52708
42-173-38113	MEWBOURNE OIL COMPANY	Oil	52725
42-173-38114	LAREDO PETROLEUM, INC.	Oil	47970
42-173-38115	LAREDO PETROLEUM, INC.	Oil	47945
42-173-38116	ENDEAVOR ENERGY RESOURCES L.P.	Oil	52812
42-173-38117	ENDEAVOR ENERGY RESOURCES L.P.	Oil	52934
42-173-38118	ENDEAVOR ENERGY RESOURCES L.P.	Oil	52706
42-173-38119	ENDEAVOR ENERGY RESOURCES L.P.	Oil	53005
42-173-38120	CROWNQUEST OPERATING, LLC
42-173-38121	XTO ENERGY INC.	Oil	53898
42-173-38122	XTO ENERGY INC.	Oil	53898
42-173-38123	XTO ENERGY INC.	Oil	53898
42-173-38124	XTO ENERGY INC.	Oil	53896
42-173-38125	XTO ENERGY INC.	Oil	53896
42-173-38126	XTO ENERGY INC.	Oil	53896
42-173-38127	XTO ENERGY INC.	Oil	53933
42-173-38128	XTO ENERGY INC.	Oil	53933
42-173-38129	XTO ENERGY INC.	Oil	53177
42-173-38130	XTO ENERGY INC.	Oil	53177
42-173-38131	XTO ENERGY INC.	Oil	53177
42-173-38132	CROWNQUEST OPERATING, LLC	Oil	52824
42-173-38133	XTO ENERGY INC.	Oil	53177
42-173-38134	XTO ENERGY INC.	Oil	53177
42-173-38135	XTO ENERGY INC.	Oil	53177
42-173-38136	XTO ENERGY INC.	Oil	53177
42-173-38137	XTO ENERGY INC.	Oil	53177
42-173-38138	XTO ENERGY INC.	Oil	54017
42-173-38139	XTO ENERGY INC.
42-173-38140	XTO ENERGY INC.
42-173-38141	XTO ENERGY INC.
42-173-38142	XTO ENERGY INC.
42-173-38143	XTO ENERGY INC.
42-173-38144	XTO ENERGY INC.
42-173-38145	XTO ENERGY INC.	Oil	54053
42-173-38146	XTO ENERGY INC.	Oil	54053
42-173-38147	DE3 OPERATING LLC	Oil	53145
42-173-38148	CROWNQUEST OPERATING, LLC
42-173-38149	PIONEER NATURAL RES. USA, INC.
42-173-38150	PIONEER NATURAL RES. USA, INC.	Oil	53658
42-173-38151	PIONEER NATURAL RES. USA, INC.	Oil	53636
42-173-38152	PARK HILL DISPOSAL LLC
42-173-38153	DIAMONDBACK E&P LLC	Oil	53954
42-173-38154	DIAMONDBACK E&P LLC	Oil	53734
42-173-38155	CROWNQUEST OPERATING, LLC
42-173-38156	DIAMONDBACK E&P LLC	Oil	53753
42-173-38157	DIAMONDBACK E&P LLC	Oil	53754
42-173-38158	OVINTIV USA INC.	Oil	53278
42-173-38159	PARSLEY ENERGY OPERATIONS, LLC	Oil	54548
42-173-38160	PARSLEY ENERGY OPERATIONS, LLC	Oil	54110
42-173-38161	OVINTIV USA INC.	Oil	53244
42-173-38162	OVINTIV USA INC.	Oil	53278
42-173-38163	PIONEER NATURAL RES. USA, INC.	Oil	53623
42-173-38164	CROWNQUEST OPERATING, LLC	Oil	53687
42-173-38165	TRINIDAD ENERGY, LLC
42-173-38166	PARSLEY ENERGY OPERATIONS, LLC	Oil	54237
42-173-38167	PARSLEY ENERGY OPERATIONS, LLC	Oil	54076
42-173-38168	PARSLEY ENERGY OPERATIONS, LLC	Oil	54076
42-173-38169	LAREDO PETROLEUM, INC.	Oil	53619
42-173-38170	LAREDO PETROLEUM, INC.	Oil	53468
42-173-38171	COG OPERATING LLC
42-173-38172	COG OPERATING LLC
42-173-38173	COG OPERATING LLC
42-173-38174	COG OPERATING LLC
42-173-38175	COG OPERATING LLC
42-173-38176	COG OPERATING LLC
42-173-38177	LAREDO PETROLEUM, INC.	Oil	53382
42-173-38178	LAREDO PETROLEUM, INC.	Oil	53406
42-173-38179	LAREDO PETROLEUM, INC.	Oil	53432
42-173-38180	LAREDO PETROLEUM, INC.	Oil	53461
42-173-38181	CROWNQUEST OPERATING, LLC	Oil	51889
42-173-38182	LAREDO PETROLEUM, INC.	Oil	53832
42-173-38183	LAREDO PETROLEUM, INC.	Oil	53587
42-173-38184	LAREDO PETROLEUM, INC.	Oil	53989
42-173-38185	LAREDO PETROLEUM, INC.	Oil	53784
42-173-38186	LAREDO PETROLEUM, INC.	Oil	53835
42-173-38187	LAREDO PETROLEUM, INC.	Oil	53837
42-173-38188	LAREDO PETROLEUM, INC.	Oil	54354
42-173-38189	LAREDO PETROLEUM, INC.	Oil	54502
42-173-38190	LAREDO PETROLEUM, INC.
42-173-38191	ENDEAVOR ENERGY RESOURCES L.P.	Oil	51393
42-173-38192	Hunt Oil Company
42-173-38193	Hunt Oil Company
42-173-38194	Hunt Oil Company
42-173-38195	Hunt Oil Company
42-173-38196	ENDEAVOR ENERGY RESOURCES L.P.	Oil	51393
42-173-38197	ENDEAVOR ENERGY RESOURCES L.P.	Oil	51393
42-173-38198	ENDEAVOR ENERGY RESOURCES L.P.	Oil	51393
42-173-38199	ENDEAVOR ENERGY RESOURCES L.P.	Oil	51393
42-173-38200	ENDEAVOR ENERGY RESOURCES L.P.	Oil	51393
42-173-38201	ENDEAVOR ENERGY RESOURCES L.P.
42-173-38202	Hunt Oil Company
42-173-38203	Hunt Oil Company
42-173-38204	Hunt Oil Company
42-173-38205	AQUA TERRA PERMIAN, LLC
42-173-38206	XTO ENERGY INC.
42-173-38207	DOUBLE DROP SWD, LLC
42-173-38208	DOUBLE DROP SWD, LLC
42-173-38209	XTO ENERGY INC.
42-173-38210	TALL CITY BRINE LLC	Oil	52937
42-173-38211	XTO ENERGY INC.
42-173-38212	XTO ENERGY INC.
42-173-38213	XTO ENERGY INC.
42-173-38214	XTO ENERGY INC.
42-173-38215	XTO ENERGY INC.
42-173-38216	XTO ENERGY INC.
42-173-38217	XTO ENERGY INC.
42-173-38218	XTO ENERGY INC.
42-173-38219	XTO ENERGY INC.
42-173-38220	XTO ENERGY INC.
42-173-38221	XTO ENERGY INC.
42-173-38222	XTO ENERGY INC.
42-173-38223	PARSLEY ENERGY OPERATIONS, LLC	Oil	54431
42-173-38224	PARSLEY ENERGY OPERATIONS, LLC	Oil	54431
42-173-38225	LAREDO PETROLEUM, INC.	Oil	53959
42-173-38226	LAREDO PETROLEUM, INC.	Oil	53959
42-173-38227	LAREDO PETROLEUM, INC.	Oil	54036
42-173-38228	LAREDO PETROLEUM, INC.	Oil	54036
42-173-38229	CROWNQUEST OPERATING, LLC
42-173-38230	XTO ENERGY INC.
42-173-38231	PIONEER NATURAL RES. USA, INC.
42-173-38232	PIONEER NATURAL RES. USA, INC.	Oil	54571
42-173-38233	PIONEER NATURAL RES. USA, INC.	Oil	54536
42-173-38234	PIONEER NATURAL RES. USA, INC.
42-173-38235	PIONEER NATURAL RES. USA, INC.
42-173-38237	PILOT WATER SOLUTIONS PERMIANLLC	Oil	46787
42-173-38238	Hunt Oil Company
42-173-38239	Hunt Oil Company
42-173-38240	Hunt Oil Company
42-173-38241	Hunt Oil Company
42-173-38242	DIAMONDBACK E&P LLC
42-173-38243	DIAMONDBACK E&P LLC
42-173-38244	DIAMONDBACK E&P LLC
42-173-38245	TRILOGY OPERATING, INC.	Oil	53640
42-173-38246
42-173-38247	MEWBOURNE OIL COMPANY
42-173-38248	MEWBOURNE OIL COMPANY	Oil	54283
42-173-38249	MEWBOURNE OIL COMPANY
42-173-38250	PIONEER NATURAL RES. USA, INC.	Oil	54333
42-173-38251	PIONEER NATURAL RES. USA, INC.
42-173-38252	PIONEER NATURAL RES. USA, INC.	Oil	54200
42-173-38253	PIONEER NATURAL RES. USA, INC.
42-173-38254	PIONEER NATURAL RES. USA, INC.
42-173-38255	DIAMONDBACK E&P LLC
42-173-38256	DIAMONDBACK E&P LLC
42-173-38257	DIAMONDBACK E&P LLC
42-173-38258	PIONEER NATURAL RES. USA, INC.	Oil	47270
42-173-38259	PIONEER NATURAL RES. USA, INC.	Oil	47270
42-173-38260	PIONEER NATURAL RES. USA, INC.	Oil	47270
42-173-38261	PIONEER NATURAL RES. USA, INC.	Oil	47270
42-173-38262	PIONEER NATURAL RES. USA, INC.	Oil	47270
42-173-38263	Apache Corporation
42-173-38264	Apache Corporation
42-173-38265	Apache Corporation
42-173-38266	Apache Corporation
42-173-38267	Apache Corporation
42-173-38268	DIAMONDBACK E&P LLC
42-173-38269	DIAMONDBACK E&P LLC
42-173-38270	DIAMONDBACK E&P LLC
42-173-38271	DIAMONDBACK E&P LLC
42-173-38272	DIAMONDBACK E&P LLC
42-173-38273	DIAMONDBACK E&P LLC
42-173-38274	DE3 OPERATING LLC
42-173-38275	DE3 OPERATING LLC
42-173-38276	DE3 OPERATING LLC
42-173-38277	DE3 OPERATING LLC
42-173-38278	DE3 OPERATING LLC
42-173-38279	DE3 OPERATING LLC
42-173-38280	DE3 OPERATING LLC
42-173-38281	DE3 OPERATING LLC
42-173-38282	Hunt Oil Company
42-173-38283	Hunt Oil Company
42-173-38284	LAREDO PETROLEUM, INC.	Oil	54360
42-173-38285	LAREDO PETROLEUM, INC.	Oil	54432
42-173-38286	DIAMONDBACK E&P LLC
42-173-38287	PIONEER NATURAL RES. USA, INC.	Oil	54537
42-173-38288	PIONEER NATURAL RES. USA, INC.	Oil	54538
42-173-38289	PIONEER NATURAL RES. USA, INC.	Oil	54539
42-173-38290	PIONEER NATURAL RES. USA, INC.	Oil	54540
42-173-38291	PIONEER NATURAL RES. USA, INC.	Oil	54588
42-173-38292	PIONEER NATURAL RES. USA, INC.
42-173-38293	PIONEER NATURAL RES. USA, INC.
42-173-38294	PIONEER NATURAL RES. USA, INC.
42-173-38295	PIONEER NATURAL RES. USA, INC.
42-173-38296	PIONEER NATURAL RES. USA, INC.
42-173-38297	CROWNQUEST OPERATING, LLC
42-173-38298	CROWNQUEST OPERATING, LLC
42-173-38299	TRILOGY OPERATING, INC.
42-173-38300	Hunt Oil Company
42-173-38301	OXY USA INC.
42-173-38302	DE3 OPERATING LLC	Oil
42-173-38303	DE3 OPERATING LLC
42-173-38304	DE3 OPERATING LLC
42-173-38305	DE3 OPERATING LLC
42-173-38306	DE3 OPERATING LLC
42-173-38307	DE3 OPERATING LLC	Oil
42-173-38308	DE3 OPERATING LLC
42-173-38309	DE3 OPERATING LLC
42-173-38310	Hunt Oil Company
42-173-38311	Hunt Oil Company
42-173-38312	Hunt Oil Company
42-173-38313	Hunt Oil Company
42-173-38314	Hunt Oil Company
42-173-38315	Hunt Oil Company
42-173-38316	Hunt Oil Company
42-173-38317	Hunt Oil Company
42-173-38318	COG OPERATING LLC
42-173-38319	COG OPERATING LLC
42-173-38320	Hunt Oil Company
42-173-38321	Hunt Oil Company
42-173-38322	XTO ENERGY INC.
42-173-38323	XTO ENERGY INC.
42-173-38324	XTO ENERGY INC.
42-173-38325	XTO ENERGY INC.
42-173-38326	DIAMONDBACK E&P LLC
42-173-38327	DIAMONDBACK E&P LLC
42-173-38328	DIAMONDBACK E&P LLC
42-173-38329	DIAMONDBACK E&P LLC
42-173-38330	PARK HILL DISPOSAL LLC
42-173-38331	DIAMONDBACK E&P LLC
42-173-38332	DIAMONDBACK E&P LLC
42-173-38333	Hunt Oil Company
42-173-38334	Hunt Oil Company
42-173-38335	CROWNQUEST OPERATING, LLC
42-173-38336	PARSLEY ENERGY OPERATIONS, LLC
42-173-38337	PARSLEY ENERGY OPERATIONS, LLC
42-173-38338	PARSLEY ENERGY OPERATIONS, LLC
42-173-38339	CROWNQUEST OPERATING, LLC
42-173-38340	CROWNQUEST OPERATING, LLC
42-173-38341	DIAMONDBACK E&P LLC
42-173-38342	DIAMONDBACK E&P LLC
42-173-38343	DIAMONDBACK E&P LLC
42-173-38344	DIAMONDBACK E&P LLC
42-173-38345	DIAMONDBACK E&P LLC
42-173-38346	CROWNQUEST OPERATING, LLC
42-173-38347	CROWNQUEST OPERATING, LLC
42-173-38348	CROWNQUEST OPERATING, LLC
42-173-38349	CROWNQUEST OPERATING, LLC
42-173-38350	CROWNQUEST OPERATING, LLC
42-173-38351	CROWNQUEST OPERATING, LLC
42-173-38352	CROWNQUEST OPERATING, LLC
42-173-38353	DIAMONDBACK E&P LLC
42-173-38354	CROWNQUEST OPERATING, LLC
42-173-38355	DIAMONDBACK E&P LLC
42-173-38356	CROWNQUEST OPERATING, LLC
42-173-38357	CROWNQUEST OPERATING, LLC
42-173-38358	CROWNQUEST OPERATING, LLC
42-173-38359	XTO ENERGY INC.
42-173-38360	PIONEER NATURAL RES. USA, INC.
42-173-38361	PIONEER NATURAL RES. USA, INC.
42-173-38362	PIONEER NATURAL RES. USA, INC.
42-173-38363	PIONEER NATURAL RES. USA, INC.
42-173-38364	PIONEER NATURAL RES. USA, INC.
42-173-38365	PIONEER NATURAL RES. USA, INC.
42-173-38366	CROWNQUEST OPERATING, LLC
42-173-38367	CROWNQUEST OPERATING, LLC
42-173-38368
42-173-38369
42-173-38370
42-173-38371
42-173-38372
42-173-38373
42-173-38374
42-173-38375
42-173-38376
42-173-38377
42-173-80000	DE3 OPERATING LLC	Gas
42-173-80001	Cox, John L.	Gas
42-173-80002	Cox, John L.	Gas
42-173-80003	Cox, John L.	Gas
42-173-80004	KEY, YALE E.	Oil
42-173-80005	KEY, YALE E.	Oil
42-173-80006	KEY, YALE E.	Oil
42-173-80007	MOBIL PRODUCING TX. & N.M. INC.	Oil
42-173-80008	MOBIL PRODUCING TX. & N.M. INC.	Oil
42-173-80009	MOBIL PRODUCING TX. & N.M. INC.	Oil
42-173-80010	HOUSTON DOMESTIC OIL COMPANY	Oil
42-173-80011	HOUSTON DOMESTIC OIL COMPANY	Oil
42-173-80012
42-173-80013	BRISTOL RESOURCES CORPORATION	Oil
42-173-80014	DISCOVERY NATURAL RESOURCES LLC	Oil
42-173-80015	CASS, FRANK	Oil
42-173-80016	MOBIL OIL CORPORATION	Oil
42-173-80017
42-173-80018
42-173-80019
42-173-80020
42-173-80021
42-173-80022
42-173-80023	APCO OIL CORPORATION	Oil
42-173-80024	APCO OIL CORPORATION	Oil
42-173-80025	APCO OIL CORPORATION	Oil
42-173-80026
42-173-80027
42-173-80028
42-173-80029
42-173-80030
42-173-80031
42-173-80032
42-173-80033
42-173-80034
42-173-80035	STEPHENS, AUTRY C.	Oil	07612
42-173-80036
42-173-80037
42-173-80038
42-173-80039	Cox, John L.	Oil
42-173-80040
42-173-80041	Ensource Inc.	Oil
42-173-80042
42-173-80043
42-173-80044
42-173-80045	Great Western Drilling Company	Oil
42-173-80046
42-173-80047
42-173-80048
42-173-80049
42-173-80050
42-173-80051
42-173-80052
42-173-80053
42-173-80054
42-173-80055
42-173-80056
42-173-80057
42-173-80058
42-173-80059
42-173-80060
42-173-80061
42-173-80062	MERIT ENERGY COMPANY	Oil
42-173-80063
42-173-80064
42-173-80065
42-173-80066
42-173-80067
42-173-80068
42-173-80069
42-173-80070
42-173-80071
42-173-80072
42-173-80073
42-173-80074
42-173-80075
42-173-80076	WHEELCO OIL & GAS, INC.	Oil
42-173-80077
42-173-80078
42-173-80079
42-173-80080
42-173-80081
42-173-80082
42-173-80083
42-173-80084
42-173-80085
42-173-80086
42-173-80087
42-173-80088
42-173-80089
42-173-80090
42-173-80091	CONOCOPHILLIPS COMPANY	Oil
42-173-80092
42-173-80093
42-173-80094
42-173-80095
42-173-80096
42-173-80097
42-173-80098
42-173-80099
42-173-80100
42-173-80101
42-173-80102
42-173-80103
42-173-80104
42-173-80105
42-173-80106
42-173-80107
42-173-80108
42-173-80109
42-173-80110
42-173-80111
42-173-80112
42-173-80113
42-173-80114
42-173-80115
42-173-80116
42-173-80117
42-173-80118
42-173-80119
42-173-80120
42-173-80121
42-173-80122
42-173-80123
42-173-80124
42-173-80125
42-173-80126
42-173-80127
42-173-80128
42-173-80129
42-173-80130
42-173-80131
42-173-80132
42-173-80133
42-173-80134
42-173-80135
42-173-80136
42-173-80137
42-173-80138
42-173-80139
42-173-80140
42-173-80141
42-173-80142
42-173-80143
42-173-80144
42-173-80145
42-173-80146
42-173-80147
42-173-80148
42-173-80149
42-173-80150	CLARK, LESTER	Oil
42-173-80151	CLARK, LESTER	Oil
42-173-80152
42-173-80153	5H OIL CO., LLC	Oil	41317
42-173-80154
42-173-80155
42-173-80156
42-173-80157
42-173-80158
42-173-80159
42-173-80160
42-173-80161
42-173-80162
42-173-80163
42-173-80164
42-173-80165
42-173-80166
42-173-80167
42-173-80168
42-173-80169
42-173-80170
42-173-80171
42-173-80172	CIMAREX ENERGY CO. OF COLORADO	Oil
42-173-80173	CIMAREX ENERGY CO. OF COLORADO	Oil
42-173-80174
42-173-80175
42-173-80176
42-173-80177
42-173-80178
42-173-80179
42-173-80180
42-173-80181
42-173-80182
42-173-80183
42-173-80184
42-173-80185
42-173-80186
42-173-80187
42-173-80188
42-173-80189
42-173-80190
42-173-80191	5H OIL CO., LLC	Oil	41310
42-173-80192
42-173-80193
42-173-80194
42-173-80195
42-173-80196
42-173-80197
42-173-80198
42-173-80199
42-173-80200
42-173-80201
42-173-80202
42-173-80203
42-173-80204
42-173-80205
42-173-80206
42-173-80207
42-173-80208
42-173-80209
42-173-80210
42-173-80211
42-173-80212
42-173-80213
42-173-80214
42-173-80215
42-173-80216
42-173-80217
42-173-80218
42-173-80219
42-173-80220
42-173-80221
42-173-80222
42-173-80223
42-173-80224
42-173-80225
42-173-80226
42-173-80227
42-173-80228
42-173-80229
42-173-80230
42-173-80231
42-173-80232
42-173-80233
42-173-80234
42-173-80235
42-173-80236	Apache Corporation	Oil
42-173-80237
42-173-80238
42-173-80239
42-173-80240	Hunt Oil Company	Oil
42-173-80241	HENDRICKSON, A. N.	Oil
42-173-80242
42-173-80243	HENDRICKSON, A. N.	Oil
42-173-80244	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80245	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80246	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80247
42-173-80248
42-173-80249
42-173-80250	ARCO OIL & GAS CO.	Oil
42-173-80251	ARCO OIL & GAS CO.	Oil
42-173-80252	ARCO OIL & GAS CO.	Oil
42-173-80253
42-173-80254
42-173-80255
42-173-80256	Apache Corporation	Oil
42-173-80257
42-173-80258
42-173-80259
42-173-80260	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-173-80261	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-173-80262	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-173-80263
42-173-80264	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80265
42-173-80266	Phillips Petroleum Company	Oil
42-173-80267
42-173-80268
42-173-80269
42-173-80270	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80271
42-173-80272	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80273
42-173-80274
42-173-80275
42-173-80276
42-173-80277
42-173-80278
42-173-80279
42-173-80280
42-173-80281	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-173-80282
42-173-80283
42-173-80284
42-173-80285
42-173-80286
42-173-80287
42-173-80288
42-173-80289
42-173-80290
42-173-80291
42-173-80292
42-173-80293
42-173-80294
42-173-80295
42-173-80296
42-173-80297
42-173-80298
42-173-80299	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80300
42-173-80301
42-173-80302	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80303	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80304
42-173-80305
42-173-80306
42-173-80307
42-173-80308
42-173-80309
42-173-80310
42-173-80311
42-173-80312
42-173-80313
42-173-80314
42-173-80315
42-173-80316
42-173-80317
42-173-80318	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80319
42-173-80320
42-173-80321
42-173-80322
42-173-80323	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80324	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80325	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80326
42-173-80327
42-173-80328
42-173-80329
42-173-80330
42-173-80331
42-173-80332	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80333
42-173-80334
42-173-80335
42-173-80336
42-173-80337
42-173-80338
42-173-80339
42-173-80340
42-173-80341
42-173-80342
42-173-80343
42-173-80344
42-173-80345
42-173-80346
42-173-80347
42-173-80348
42-173-80349
42-173-80350
42-173-80351
42-173-80352
42-173-80353
42-173-80354
42-173-80355	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80356
42-173-80357
42-173-80358	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80359
42-173-80360
42-173-80361
42-173-80362
42-173-80363
42-173-80364
42-173-80365
42-173-80366
42-173-80367
42-173-80368
42-173-80369
42-173-80370
42-173-80371
42-173-80372
42-173-80373
42-173-80374
42-173-80375
42-173-80376	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80377
42-173-80378
42-173-80379
42-173-80380
42-173-80381	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80382
42-173-80383	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80384
42-173-80385
42-173-80386	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80387
42-173-80388	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80389
42-173-80390
42-173-80391
42-173-80392
42-173-80393
42-173-80394	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80395
42-173-80396
42-173-80397
42-173-80398
42-173-80399	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80400
42-173-80401
42-173-80402
42-173-80403	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80404	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80405
42-173-80406
42-173-80407	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80408
42-173-80409
42-173-80410
42-173-80411
42-173-80412
42-173-80413
42-173-80414
42-173-80415
42-173-80416
42-173-80417
42-173-80418
42-173-80419	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80420	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80421
42-173-80422	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80423	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80424	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80425
42-173-80426	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80427	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80428	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80429	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80430	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80431
42-173-80432
42-173-80433	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80434
42-173-80435
42-173-80436
42-173-80437
42-173-80438
42-173-80439	PIONEER NATURAL RES. USA, INC.	Oil
42-173-80440	CLEARY PETROLEUM CORP.	Oil
42-173-80441	JAMEX, INC.	Oil
42-173-80442	MECO IV, LLC	Oil
42-173-80443	Cox, John L.	Oil
42-173-80444
42-173-80445
42-173-80446
42-173-80447
42-173-80448
42-173-80449
42-173-80450
42-173-80451
42-173-80452
42-173-80453
42-173-80454
42-173-80455
42-173-80456
42-173-80457
42-173-80458
42-173-80459
42-173-80460
42-173-80461
42-173-80462
42-173-80463
42-173-80464
42-173-80465	DE3 OPERATING LLC	Oil
42-173-80466
42-173-80467
42-173-80468
42-173-80469
42-173-80470
42-173-80471
42-173-80472
42-173-80473
42-173-80474
42-173-80475
42-173-80476
42-173-80477
42-173-80478
42-173-80479
42-173-80480
42-173-80481
42-173-80482
42-173-80483
42-173-80484
42-173-80485
42-173-80486	CAMBRIAN MANAGEMENT, LTD.	Oil
42-173-80487	CAMBRIAN MANAGEMENT, LTD.	Oil
42-173-80488
42-173-80489
42-173-80490
42-173-80491
42-173-80492	CONOCOPHILLIPS COMPANY	Oil	20060
42-173-80493	CONOCOPHILLIPS COMPANY	Oil	20060
42-173-80494	CONOCOPHILLIPS COMPANY	Oil	20060
42-173-80495	CONOCOPHILLIPS COMPANY	Oil	20060
42-173-80496	CONOCOPHILLIPS COMPANY	Oil	41250
42-173-80497
42-173-80498
42-173-80499	CONOCOPHILLIPS COMPANY	Oil	41256
42-173-80500	CONOCOPHILLIPS COMPANY	Oil	41256
42-173-80501
42-173-80502
42-173-80503
42-173-80504	CONOCOPHILLIPS COMPANY	Oil	20060
42-173-80505	CONOCOPHILLIPS COMPANY	Oil	20060
42-173-80506
42-173-80507
42-173-80508
42-173-80509
42-173-80510
42-173-80511
42-173-80512
42-173-80513
42-173-80514	GOLDEN SPECIALTIES OIL & GAS	Oil	48357
42-173-80515
42-173-80516
42-173-80517
42-173-80518
42-173-80519
42-173-80520
42-173-80521
42-173-80522	MGM OIL & GAS COMPANY	Oil
42-173-80523
42-173-80524	Southland Royalty Company	Oil
42-173-80525
42-173-80526
42-173-80527
42-173-80528
42-173-80529
42-173-80530	AMERICAN PETROFINA CO. OF TEX.	Oil
42-173-80531
42-173-80532
42-173-80533
42-173-80534
42-173-80535
42-173-80536
42-173-80537
42-173-80538
42-173-80539
42-173-80540
42-173-80541
42-173-80542
42-173-80543
42-173-80544
42-173-80545
42-173-80546
42-173-80547
42-173-80548
42-173-80549
42-173-80550
42-173-80551
42-173-80552
42-173-80553
42-173-80554
42-173-80555
42-173-80556
42-173-80557
42-173-80558
42-173-80559
42-173-80560
42-173-80561
42-173-80562
42-173-80563
42-173-80564	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-80565	SHERIDAN PRODUCTION COMPANY, LLC	Oil	22575
42-173-80566
42-173-80567
42-173-80568
42-173-80569
42-173-80570
42-173-80571
42-173-80572
42-173-80573
42-173-80574
42-173-80575
42-173-80576
42-173-80577
42-173-80578
42-173-80579
42-173-80580
42-173-80581
42-173-80582
42-173-80583
42-173-80584
42-173-80585
42-173-80586
42-173-80587
42-173-80588
42-173-80589
42-173-80590
42-173-80591
42-173-80592
42-173-80593
42-173-80594
42-173-80595
42-173-80596
42-173-80597
42-173-80598
42-173-80599
42-173-80600
42-173-80601
42-173-80602
42-173-80603
42-173-80604	SHERIDAN PRODUCTION COMPANY, LLC	Oil	41062
42-173-80605
42-173-80606
42-173-80607
42-173-80608
42-173-80609
42-173-80610
42-173-80611
42-173-80612
42-173-80613
42-173-80614
42-173-80615
42-173-80616	ADOBE OIL CO.	Oil
42-173-80617
42-173-80618	GLOSSOP, ROBERT L.	Oil
42-173-80619
42-173-80620
42-173-80621
42-173-80622
42-173-80623
42-173-80624
42-173-80625
42-173-80626
42-173-80627	Getty Oil Co.	Oil
42-173-80628	TEXAS INVESTMENTS	Oil
42-173-80629
42-173-80630
42-173-80631
42-173-80632
42-173-80633	ROBERTSON RESOURCES, INC.	Oil
42-173-80634
42-173-80635
42-173-80636
42-173-80637
42-173-80638
42-173-80639
42-173-80640
42-173-80641
42-173-80642
42-173-80643
42-173-80644	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24490
42-173-80645
42-173-80646
42-173-80647
42-173-80648
42-173-80649	STANOLIND PRODUCTION LLC	Oil
42-173-80650	STANOLIND PRODUCTION LLC	Oil
42-173-80651
42-173-80652
42-173-80653
42-173-80654
42-173-80655	STANOLIND PRODUCTION LLC	Oil
42-173-80656
42-173-80657
42-173-80658
42-173-80659
42-173-80660	STANOLIND PRODUCTION LLC	Oil
42-173-80661
42-173-80662
42-173-80663
42-173-80664
42-173-80665
42-173-80666
42-173-80667
42-173-80668
42-173-80669
42-173-80670	MINERAL TECHNOLOGIES, INC.	Oil	36218
42-173-80671
42-173-80672	MINERAL TECHNOLOGIES, INC.	Oil
42-173-80673	MINERAL TECHNOLOGIES, INC.	Oil	26257
42-173-80674
42-173-80675	MINERAL TECHNOLOGIES, INC.	Oil	36218
42-173-80676	MINERAL TECHNOLOGIES, INC.	Oil	26257
42-173-80677	MINERAL TECHNOLOGIES, INC.	Oil	36218
42-173-80678	MINERAL TECHNOLOGIES, INC.	Oil	26257
42-173-80679
42-173-80680
42-173-80681
42-173-80682
42-173-80683
42-173-80684
42-173-80685	VENTURE EQUIPMENT, INC.	Oil	27619
42-173-80686
42-173-80687
42-173-80688	BELCO PETROLEUM CORPORATION
42-173-80689
42-173-80690
42-173-80691	Bta Oil Producers
42-173-80692	Amoco Production Company
42-173-80693	Amoco Production Company
42-173-80694	SOHIO PETROLEUM CO.
42-173-80695
42-173-80696	WILBANKS, BRUCE A.
42-173-80697
42-173-80698	CLEARY PETROLEUM CORP.
42-173-80699	CASS, FRANK
42-173-80700	CASS, FRANK
42-173-80701	JOY PETROLEUM CORP.
42-173-80702	Texas Crude Oil Co.
42-173-80703	WILSON, DON H.
42-173-80704	SOHIO NATURAL RESOURCES CO.
42-173-80705
42-173-80706
42-173-80707
42-173-80708
42-173-80709
42-173-80710
42-173-80711	ENERGY RESERVES GROUP, INC.
42-173-80712
42-173-80713	CASS, FRANK
42-173-80714	YAKIMA OIL CO.
42-173-80715
42-173-80716	Texas Crude Oil Co.
42-173-80717
42-173-80718
42-173-80719
42-173-80720
42-173-80721	BEAU REVE OPERATING COMPANY INC.
42-173-80722	HANSON CORPORATION
42-173-80723
42-173-80724
42-173-80725
42-173-80726
42-173-80727	SOHIO PETROLEUM CO.
42-173-80728
42-173-80729	Wainoco Oil & Gas Company
42-173-80730
42-173-80731
42-173-80732	Bta Oil Producers
42-173-80733
42-173-80734
42-173-80737
42-173-80738
42-173-80739
42-173-80740
42-173-80741
42-173-80742
42-173-80743
42-173-80744
42-173-80746
42-173-80747
42-173-80748
42-173-80749
42-173-80750
42-173-80751
42-173-80752
42-173-80753
42-173-80754
42-173-80755
42-173-80756

For data sources see