Midland County, Texas
Seal
Location in the state of Texas
Texas's location in the U.S.
Founded	1885
Seat	Midland
Largest city	Midland
Area
• Total	902 sq mi (2,336 km2)
• Land	900 sq mi (2,331 km2)
• Water	1.8 sq mi (5 km2), 0.2%
Population
• (2010)	136,872
Time zone	Central: UTC-6/-5
Website	www.co.midland.tx.us
Footnotes: For infobox source see

County Well Data

Well ID	Operator Name	Well Type	Lease
42-329-00001	MURCHISON OIL AND GAS, LLC	Gas	019493
42-329-00002	Amarillo Oil Co.	Oil
42-329-00003	DE3 OPERATING LLC	Oil	26157
42-329-00004	Pioneer Production Corp.	Oil	24228
42-329-00007	Amarillo Oil Co.	Oil	18519
42-329-00008	Pioneer Production Corp.	Oil	25769
42-329-00009	Pioneer Production Corp.	Gas
42-329-00010	Pioneer Production Corp.	Oil	25732
42-329-00011	Pioneer Production Corp.	Oil	25771
42-329-00012	MURCHISON OIL & GAS INC	Gas
42-329-00013	Amarillo Oil Co.	Gas
42-329-00014	MURCHISON OIL & GAS INC	Oil	25879
42-329-00015	ENDEAVOR ENERGY RESOURCES L.P.	Oil	30680
42-329-00016	Graham Royalty, Ltd.	Oil	09307
42-329-00017	ENDEAVOR ENERGY RESOURCES L.P.	Oil	15943
42-329-00019	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00020	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00021	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-00022	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00023	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00024	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00025	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00026	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00027	MURCHISON OIL AND GAS, LLC	Gas	019496
42-329-00028	PARKER & PARSLEY, INC.
42-329-00029	Pioneer Production Corp.	Oil	25767
42-329-00031	PIONEER NATURAL RES. USA, INC.	Oil	21240
42-329-00032	Pioneer Production Corp.	Oil	25770
42-329-00033	Graham Royalty, Ltd.	Oil	30680
42-329-00034	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34322
42-329-00035	PIONEER NATURAL RES. USA, INC.	Oil	21240
42-329-00036	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00037	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00038	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00039	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00040	Pioneer Production Corp.	Oil	16654
42-329-00041	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36912
42-329-00042	DE3 OPERATING LLC	Oil	38126
42-329-00043	PIONEER NATURAL RES. USA, INC.	Oil	21240
42-329-00044	PIONEER NATURAL RES. USA, INC.	Oil	21240
42-329-00045	PIONEER NATURAL RES. USA, INC.	Oil	21240
42-329-00046	PIONEER NATURAL RES. USA, INC.	Oil	21240
42-329-00048	PIONEER NATURAL RES. USA, INC.	Oil	06267
42-329-00049	PIONEER NATURAL RES. USA, INC.	Oil	06267
42-329-00050	PIONEER NATURAL RES. USA, INC.	Oil	06268
42-329-00051	PIONEER NATURAL RES. USA, INC.	Oil	06268
42-329-00052	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00053	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00054	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00055	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00056	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00057	COG OPERATING LLC	Oil
42-329-00058	COG OPERATING LLC	Oil
42-329-00059	COG OPERATING LLC	Oil	24201
42-329-00061	PIONEER NATURAL RES. USA, INC.	Oil	06267
42-329-00062	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00063	PIONEER NATURAL RES. USA, INC.	Oil	06267
42-329-00064	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00067	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-00068	STEPHENS, AUTRY C.	Oil	07289
42-329-00069	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-00070	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00071	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00072	STEPHENS, AUTRY C.	Oil	07406
42-329-00073	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00074	ASHLAND EXPLORATION, INC.	Oil	24493
42-329-00075	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-00076	PIONEER NATURAL RES. USA, INC.	Oil	24495
42-329-00077	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06284
42-329-00078	STEPHENS, AUTRY C.	Oil	07406
42-329-00079	PIONEER NATURAL RES. USA, INC.	Oil	06278
42-329-00080	PIONEER NATURAL RES. USA, INC.	Oil	06278
42-329-00081	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00082	PIONEER NATURAL RES. USA, INC.	Oil	06278
42-329-00083	PIONEER NATURAL RES. USA, INC.	Oil	06278
42-329-00084	ASHLAND EXPLORATION, INC.	Oil	25017
42-329-00085	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00086	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00088	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00089	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00090	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00092	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00093	Bta Oil Producers	Oil	33734
42-329-00094	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00095	Apache Corporation	Oil	06306
42-329-00096	Apache Corporation	Oil
42-329-00097	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00098	Apache Corporation	Oil
42-329-00099	Apache Corporation	Oil	06310
42-329-00100	Bta Oil Producers	Oil	33734
42-329-00101	ARCO OIL & GAS CO.	Oil	26781
42-329-00102	Apache Corporation	Oil	06310
42-329-00103	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00105	Apache Corporation	Oil	06306
42-329-00106	ATLANTIC RICHFIELD CO.	Oil
42-329-00107	Apache Corporation	Oil	06306
42-329-00108	Bta Oil Producers	Oil
42-329-00109	Apache Corporation	Oil	06306
42-329-00110	Apache Corporation	Oil	06310
42-329-00111	ATLANTIC RICHFIELD CO.	Oil
42-329-00112	Apache Corporation	Oil
42-329-00113	Apache Corporation	Oil
42-329-00114	Apache Corporation	Oil	06294
42-329-00115	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00116	Apache Corporation	Oil
42-329-00118	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00119	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00120	Apache Corporation	Oil	06294
42-329-00121	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00122	Bta Oil Producers	Oil	22216
42-329-00123	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37481
42-329-00124	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00125	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00127	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00128	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00129	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00130	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00131	PIONEER NATURAL RES. USA, INC.	Oil	09713
42-329-00133	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00134	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00135	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00136	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00137	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00140	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00142	Cox, John L.	Gas
42-329-00143	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00144	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00145	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00146	BP EXPLORATION INC.	Oil
42-329-00147	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00148	PARKER & PARSLEY DEVELOPMENT L.P	Oil
42-329-00149	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-00150	PIONEER NATURAL RES. USA, INC.	Oil	24494
42-329-00151	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00152	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-00153	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00154	CHEVRON U. S. A. INC.	Gas	206340
42-329-00155	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00156	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00159	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00167	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00170	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00171	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00172	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00173	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00175	PARKER & PARSLEY DEVELOPMENT L.P	Oil	07265
42-329-00177	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00178	DE3 OPERATING LLC	Oil	22831
42-329-00179	BAXTER, MURPHY H.	Oil
42-329-00180	BAXTER, MURPHY H.	Oil	24437
42-329-00181	BAXTER, MURPHY H.	Oil
42-329-00182	BAXTER, MURPHY H.	Oil	24436
42-329-00183	BAXTER, MURPHY H.	Oil	24441
42-329-00184	BAXTER, MURPHY H.	Oil	24439
42-329-00185	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24438
42-329-00186	ENDEAVOR ENERGY RESOURCES L.P.	Oil	45053
42-329-00187	DE3 OPERATING LLC	Oil	27558
42-329-00188	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00189	CHEVRON U. S. A. INC.	Gas	020002
42-329-00190	OXY USA WTP LP	Oil	15860
42-329-00191	OXY USA WTP LP	Oil	15848
42-329-00192	OXY USA WTP LP	Gas	282041
42-329-00193	OXY USA WTP LP	Oil	15873
42-329-00194	OXY USA INC.	Oil	15857
42-329-00195	OXY USA WTP LP	Oil	15858
42-329-00196	OXY USA WTP LP	Gas	282167
42-329-00197	OXY USA WTP LP	Oil	15848
42-329-00199
42-329-00200	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-00202
42-329-00204	CHEVRON U. S. A. INC.	Gas	223474
42-329-00205	CHEVRON U. S. A. INC.	Oil
42-329-00206	Gulf Oil Corp.	Oil
42-329-00207
42-329-00209	LOVELADY, IKE INC.	Oil	26226
42-329-00210	LOVELADY, IKE INC.	Oil	25208
42-329-00213	Bta Oil Producers	Oil
42-329-00214	TRINITY ENVIRO SWD I, L.L.C.	Oil	02683
42-329-00215	TRINITY ENVIRO SWD I, L.L.C.	Oil	02683
42-329-00216	TRINITY ENVIRO SWD I, L.L.C.	Oil	02683
42-329-00217	TRINITY ENVIRO SWD I, L.L.C.	Oil	02683
42-329-00218	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00219	BAXTER, MURPHY H.	Oil	23821
42-329-00220	ENDEAVOR ENERGY RESOURCES L.P.	Oil	25831
42-329-00221	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37065
42-329-00222	DE3 OPERATING LLC	Oil	22347
42-329-00223	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23821
42-329-00226	BAXTER, MURPHY H.	Oil	28423
42-329-00227	BAXTER, MURPHY H.	Oil	24468
42-329-00228	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24467
42-329-00229	BAXTER, MURPHY H.	Gas	119161
42-329-00231	BAXTER, MURPHY H.	Oil	24355
42-329-00232	DE3 OPERATING LLC	Oil	24355
42-329-00233	PARKER & PARSLEY, INC.	Oil	28923
42-329-00234	DE3 OPERATING LLC	Oil	43133
42-329-00235	ENDEAVOR ENERGY RESOURCES L.P.	Oil	43721
42-329-00236	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24459
42-329-00237	BAXTER, MURPHY H.	Oil	24459
42-329-00238	ENDEAVOR ENERGY RESOURCES L.P.	Oil	39784
42-329-00239	ENDEAVOR ENERGY RESOURCES L.P.	Oil	39784
42-329-00240	DE3 OPERATING LLC	Oil	24459
42-329-00241	BAXTER, MURPHY H.	Oil	24601
42-329-00242	DE3 OPERATING LLC	Oil	30335
42-329-00243	BAXTER, MURPHY H.	Oil	24442
42-329-00244	DE3 OPERATING LLC	Oil	24442
42-329-00245	OXY USA WTP LP	Oil
42-329-00250	OXY USA WTP LP	Gas	030494
42-329-00252	NATURAL ENERGIES INC.	Oil
42-329-00257	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00261
42-329-00265	MOMENTUM OPERATING CO., INC.	Oil	25017
42-329-00266	OXY USA WTP LP	Gas	030488
42-329-00273	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00276	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00283	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00284	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-00285	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-00286	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00288	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00295	OXY USA INC.	Oil	34647
42-329-00296	OXY USA INC.	Oil
42-329-00297	OXY USA WTP LP	Oil	09760
42-329-00299	OXY USA INC.	Gas	281857
42-329-00300	OXY USA INC.	Gas
42-329-00301	OXY USA INC.	Oil	15850
42-329-00302	OXY USA WTP LP	Gas	030509
42-329-00303	OXY USA WTP LP	Gas	030508
42-329-00304	OXY USA INC.	Gas	030495
42-329-00305	OXY USA WTP LP	Gas	030516
42-329-00306	OXY USA WTP LP	Oil	15862
42-329-00307	OXY USA WTP LP	Gas	030482
42-329-00308	OXY USA WTP LP	Oil	34635
42-329-00309	OXY USA WTP LP	Oil	15862
42-329-00310	OXY USA WTP LP	Gas	030480
42-329-00311	OXY USA WTP LP	Oil	15857
42-329-00312	OXY USA WTP LP	Gas	030499
42-329-00313	OXY USA WTP LP	Gas	030498
42-329-00314	OXY USA WTP LP	Oil	07139
42-329-00316
42-329-00317	Gruss, Joseph S.	Oil
42-329-00318	MALLARD EXPLORATION, INC.	Oil
42-329-00319	Gruss, Joseph S.	Oil
42-329-00320	Gruss, Joseph S.	Oil
42-329-00323	PIONEER NATURAL RES. USA, INC.	Oil	24511
42-329-00325	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00326	STEPHENS, AUTRY C.	Oil	07443
42-329-00328	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-00329	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-00330	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00331
42-329-00332	Union Oil Company Of California	Oil
42-329-00333	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06451
42-329-00334	MWJ PRODUCING COMPANY	Oil
42-329-00338	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00339	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00340	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00342	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06337
42-329-00343	Texaco Inc.	Oil
42-329-00344	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06337
42-329-00345	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00346	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00348	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00349	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00350	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00352	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06336
42-329-00355	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00356	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00357	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-00358	Texas Crude Oil Co.	Oil	06346
42-329-00366	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06280
42-329-00367
42-329-00368
42-329-00369	El Paso Natural Gas Company	Oil	23060
42-329-00370	REEVES COUNTY SYSTEMS, INC.	Oil
42-329-00379	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00381	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06280
42-329-00382	OXY USA WTP LP	Gas	030504
42-329-00383	OXY USA WTP LP	Gas	030503
42-329-00384	OXY USA WTP LP	Oil	15850
42-329-00385	OXY USA WTP LP	Oil	15857
42-329-00386	OXY USA INC.	Oil	31940
42-329-00387	OXY USA WTP LP	Oil	34635
42-329-00388	OXY USA WTP LP	Oil	34635
42-329-00389	OXY USA WTP LP	Oil	15848
42-329-00390	OXY USA WTP LP	Oil	15859
42-329-00391	OXY USA WTP LP	Oil	15859
42-329-00392	OXY USA WTP LP	Oil	15848
42-329-00393	OXY USA WTP LP	Oil	15857
42-329-00394	OXY USA WTP LP	Oil	15873
42-329-00395	OXY USA INC.	Oil	34635
42-329-00396	OXY USA WTP LP	Gas	030510
42-329-00397	OXY USA INC.	Oil	15848
42-329-00398	OXY USA WTP LP	Oil	15859
42-329-00399	OXY USA WTP LP	Oil	15860
42-329-00401	OXY USA WTP LP	Oil	14890
42-329-00402	OXY USA INC.	Oil	15848
42-329-00403	OXY USA WTP LP	Oil	34646
42-329-00404	OXY USA WTP LP	Oil	15857
42-329-00405	OXY USA WTP LP	Oil	15857
42-329-00406	OXY USA WTP LP	Oil	34635
42-329-00407	OXY USA WTP LP	Oil	15860
42-329-00408	OXY USA WTP LP	Oil	34642
42-329-00409	OXY USA INC.	Oil	34635
42-329-00410	OXY USA WTP LP	Oil	34635
42-329-00411	OXY USA INC.	Oil	15848
42-329-00412	OXY USA WTP LP	Oil	15850
42-329-00413	OXY USA WTP LP	Oil	15873
42-329-00414	OXY USA WTP LP	Oil	15857
42-329-00415	OXY USA WTP LP	Oil	15857
42-329-00416	OXY USA INC.	Oil	29629
42-329-00417	OXY USA INC.	Oil	34642
42-329-00418	OXY USA INC.	Oil	15850
42-329-00419	OXY USA WTP LP	Gas	030481
42-329-00420	OXY USA WTP LP	Oil	15858
42-329-00421	OXY USA WTP LP	Gas	283365
42-329-00422	OXY USA WTP LP	Oil	34646
42-329-00423	OXY USA WTP LP	Oil	15857
42-329-00424	OXY USA WTP LP	Oil	15860
42-329-00425	OXY USA WTP LP	Gas	282032
42-329-00426	OXY USA WTP LP	Oil	15857
42-329-00427	OXY USA INC.	Oil	15857
42-329-00428	OXY USA WTP LP	Oil	15859
42-329-00429	OXY USA WTP LP	Oil	15848
42-329-00430	OXY USA WTP LP	Oil	15857
42-329-00431	OXY USA WTP LP	Oil	15857
42-329-00432	OXY USA WTP LP	Oil	15860
42-329-00433	OXY USA WTP LP	Oil	15848
42-329-00434	OXY USA WTP LP	Oil	31940
42-329-00435	OXY USA WTP LP	Oil	15857
42-329-00436	OXY USA INC.	Oil	34635
42-329-00437	OXY USA INC.	Oil	15850
42-329-00438	OXY USA WTP LP	Oil	15857
42-329-00439	OXY USA WTP LP	Oil	15848
42-329-00440	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06367
42-329-00441	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00443	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00444	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00445	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00446	PIONEER NATURAL RES. USA, INC.	Oil	06610
42-329-00447	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06613
42-329-00448	PIONEER NATURAL RES. USA, INC.	Oil	06610
42-329-00450	PIONEER NATURAL RES. USA, INC.	Oil	06610
42-329-00451	PIONEER NATURAL RES. USA, INC.	Oil	06610
42-329-00452	PIONEER NATURAL RES. USA, INC.	Oil	06610
42-329-00453	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06613
42-329-00454	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00455	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-00456	PIONEER NATURAL RES. USA, INC.	Oil	06610
42-329-00457	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-00459	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00460	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00461	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-00462	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34379
42-329-00464	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00465	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00466	PARKER & PARSLEY, LTD.	Oil	06613
42-329-00467	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00468	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06613
42-329-00469	PIONEER NATURAL RES. USA, INC.	Oil	06610
42-329-00471	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00472	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00473	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00476	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-00477	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00478	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-00479	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06613
42-329-00480	PLAINS PETROLEUM OPERATING CO.	Oil	06371
42-329-00483	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00484	THOMAS EXPLORATION & DEVEL., INC	Oil	08563
42-329-00485	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00487	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00489
42-329-00490	ELMS, BILL G.	Oil	25017
42-329-00491	THOMAS EXPLORATION & DEVEL., INC	Oil	08563
42-329-00492	THOMAS EXPLORATION & DEVEL., INC	Oil	08563
42-329-00493	EXXON CORP.	Oil	08790
42-329-00495	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00496	PITTS ENERGY CO.	Oil	06369
42-329-00497	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06367
42-329-00498	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00499	PITTS ENERGY CO.	Oil	06369
42-329-00501	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00502	GEN. AMER. OIL CO. OF TEXAS	Oil
42-329-00504	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00505	OXY USA WTP LP	Oil	15848
42-329-00506	OXY USA WTP LP	Oil	15857
42-329-00507	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00510	ELMS, BILL G.	Oil	25017
42-329-00511	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00512	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00513	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00514	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00515	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00516	MOBIL OIL CORPORATION	Oil
42-329-00517	MOBIL OIL CORPORATION	Oil	22894
42-329-00518	MOBIL OIL CORPORATION	Oil
42-329-00520	MOBIL OIL CORPORATION	Oil
42-329-00521	BROCKETT, C. H.	Gas
42-329-00522
42-329-00527	OXY USA WTP LP	Gas	030501
42-329-00530	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06477
42-329-00531	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-00532	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-00533	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-00534	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06477
42-329-00535	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06473
42-329-00537	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06473
42-329-00538	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06473
42-329-00539	OXY USA WTP LP	Gas	030506
42-329-00540	DE3 OPERATING LLC	Oil	13892
42-329-00541	FASKEN, DAVID	Oil
42-329-00542	FASKEN, BARBARA	Oil
42-329-00543	FASKEN, DAVID	Oil	24608
42-329-00544	Texam Oil Corporation	Oil	25017
42-329-00545	Texam Oil Corporation	Oil	25017
42-329-00546	Texam Oil Corporation	Oil	25017
42-329-00547	PIONEER NATURAL RES. USA, INC.	Oil	06361
42-329-00548	PARKER & PARSLEY DEVELOPMENT L.P	Oil	07323
42-329-00549	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00550	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00551	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00552	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00553	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-00554	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34379
42-329-00555	PIONEER NATURAL RES. USA, INC.	Oil	20051
42-329-00556	EXXON CORP.	Oil
42-329-00561	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00562	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00563	Gulf Oil Corp.	Oil	24445
42-329-00567	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06693
42-329-00570	JM COX RESOURCES, L.P.	Oil
42-329-00571	JM COX RESOURCES, L.P.	Oil
42-329-00572	Gruss, Joseph S.	Oil
42-329-00573	Gruss, Joseph S.	Oil
42-329-00577	PIONEER NATURAL RES. USA, INC.	Oil	22584
42-329-00587	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00588	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06692
42-329-00589	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06692
42-329-00590	LANEXCO, INC.	Oil	32523
42-329-00591	ENDEAVOR ENERGY RESOURCES L.P.	Oil	43609
42-329-00592	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06695
42-329-00593	DIAMONDBACK E&P LLC	Oil	32168
42-329-00594	Texas American Oil Corp.	Oil	39310
42-329-00596
42-329-00599	CHEVRON U. S. A. INC.	Oil	23734
42-329-00600	K.W.A., INC.	Oil	28374
42-329-00601	Gulf Oil Corp.	Oil
42-329-00602	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00603	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00604	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-00605	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-00606	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-00607	PIONEER NATURAL RES. USA, INC.	Oil	34157
42-329-00608	Gulf Oil Corp.	Oil
42-329-00609	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-00610	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00613	PIONEER NATURAL RES. USA, INC.	Oil	34157
42-329-00614	PIONEER NATURAL RES. USA, INC.	Oil	29651
42-329-00615	PIONEER NATURAL RES. USA, INC.	Oil	29651
42-329-00616	Gulf Oil Corp.	Oil	24447
42-329-00617	CHEVRON U. S. A. INC.	Oil
42-329-00618	Gulf Oil Corp.	Oil	24445
42-329-00619	Gulf Oil Corp.	Gas
42-329-00620	Gulf Oil Corp.	Oil	06390
42-329-00621	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-00622	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-00623	Gulf Oil Corp.	Oil
42-329-00625	Gulf Oil Corp.	Oil	23837
42-329-00626	DE3 OPERATING LLC	Oil	27289
42-329-00627	PIONEER NATURAL RES. USA, INC.	Oil	24179
42-329-00628	Gulf Oil Corp.	Oil	24179
42-329-00629	Hunt Oil Company	Oil	06402
42-329-00630	PARKER & PARSLEY PETROLEUM CO.	Gas	043566
42-329-00631
42-329-00632	LOVELADY, I. W.	Oil
42-329-00633	PARKER & PARSLEY PETROLEUM CO.	Gas	020847
42-329-00637	MIDPAR L.P.	Oil	30564
42-329-00639	Parker & Parsley Development Co.	Gas	043551
42-329-00641	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20438
42-329-00642	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00643	Hunt Oil Company	Oil	06398
42-329-00644	Hunt Oil Company	Oil	06398
42-329-00645	Hunt Oil Company	Oil	06398
42-329-00646	Hunt Oil Company	Oil	06398
42-329-00648	PARKER & PARSLEY PETROLEUM CO.	Gas
42-329-00649	PARKER & PARSLEY PETROLEUM CO.	Gas
42-329-00651
42-329-00652	HANLEY PETROLEUM INC.	Oil	34750
42-329-00656	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00657	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00658	JOSALINE PRODUCTION CO.	Oil
42-329-00661	COG OPERATING LLC	Oil	04116
42-329-00663	Humble Oil & Refining Co.	Oil	21883
42-329-00665	DE3 OPERATING LLC	Oil	22167
42-329-00666	Humble Oil & Refining Co.	Oil	21883
42-329-00668	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-00671	COLA PETROLEUM, INC.
42-329-00674	PIONEER NATURAL RES. USA, INC.	Oil	06283
42-329-00676	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00677	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-00678	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00679	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00680	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-00681	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-00682
42-329-00683	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00684	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-00687	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00688	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00690	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00692	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00694
42-329-00696	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-00697	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00712	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00718	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-00719	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00720	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00721	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00722	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00725	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00726	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00727	PIONEER NATURAL RES. USA, INC.	Oil	06427
42-329-00728	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00729	EXXON CORP.	Oil	22040
42-329-00730	EXXON CORP.	Gas	019548
42-329-00731	Humble Oil & Refining Co.	Oil	21439
42-329-00732	EXXON CORP.	Oil
42-329-00733	EXXON CORP.	Oil	22040
42-329-00734	HUNT, HASSIE, TRUST	Oil
42-329-00736	HUTCHCO PROD., SALES, SERVICE	Oil	22720
42-329-00737	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00738	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00740	PIONEER NATURAL RES. USA, INC.	Oil	06427
42-329-00741	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00742	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00744	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00746	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00748	MWJ PRODUCING COMPANY	Oil	14251
42-329-00749	MWJ PRODUCING COMPANY	Oil	19161
42-329-00750
42-329-00751	DST EXPLORATION CORP.	Oil	29341
42-329-00752	Parker & Parsley Development Co.	Oil	12776
42-329-00753	DST EXPLORATION CORP.	Gas
42-329-00754	DST EXPLORATION CORP.	Gas
42-329-00755	WILSON SYSTEMS, INC.	Gas	020859
42-329-00756	DST EXPLORATION CORP.	Gas
42-329-00757	DST EXPLORATION CORP.	Gas
42-329-00771	CHEVRON U. S. A. INC.	Oil	22343
42-329-00772	ENDEAVOR ENERGY RESOURCES L.P.
42-329-00776	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-00778	DIAMONDBACK E&P LLC	Oil	16363
42-329-00779	DIAMONDBACK E&P LLC	Oil	16363
42-329-00780	DIAMONDBACK E&P LLC	Oil
42-329-00781	DIAMONDBACK E&P LLC	Oil	16363
42-329-00782	DIAMONDBACK E&P LLC	Oil	16363
42-329-00783	DIAMONDBACK E&P LLC	Oil	16363
42-329-00784	DELPHI CORP.	Oil
42-329-00787	ENSERCH EXPLORATION, INC	Oil
42-329-00790	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-00791	ENERGEN RESOURCES CORPORATION	Gas	019552
42-329-00792	LONE STAR PROD. CO.	Oil	16486
42-329-00793	KAISER-FRANCIS OIL COMPANY	Oil	06711
42-329-00795	EP Operating Company	Oil	16417
42-329-00796	DIAMONDBACK E&P LLC	Oil	16690
42-329-00797	DIAMONDBACK E&P LLC	Oil	16417
42-329-00798	DIAMONDBACK E&P LLC	Oil	16417
42-329-00799	DIAMONDBACK E&P LLC	Oil
42-329-00800	DIAMONDBACK E&P LLC	Oil	16295
42-329-00801	ENDEAVOR ENERGY RESOURCES L.P.	Oil	42966
42-329-00806	ENERGEN RESOURCES CORPORATION	Oil	16295
42-329-00807	DIAMONDBACK E&P LLC	Oil	16295
42-329-00808	EP Operating Company	Oil	16295
42-329-00809	DIAMONDBACK E&P LLC	Oil
42-329-00810	DIAMONDBACK E&P LLC	Oil	16417
42-329-00811	COG OPERATING LLC	Oil	39630
42-329-00812	COG OPERATING LLC	Oil	39630
42-329-00813	COG OPERATING LLC	Oil	34347
42-329-00814	XTO ENERGY INC.	Oil	28207
42-329-00815	COG OPERATING LLC	Oil	39630
42-329-00816	COG OPERATING LLC	Oil	39630
42-329-00817	COG OPERATING LLC	Oil	26538
42-329-00818	COG OPERATING LLC	Oil	11746
42-329-00819	COG OPERATING LLC	Oil	11643
42-329-00820	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00821	Parker & Parsley Development Co.	Oil	23365
42-329-00822	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00823	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00824	MOBIL PRODUCING TX. & N.M. INC.	Oil	06451
42-329-00825	MOBIL PRODUCING TX. & N.M. INC.	Oil	21086
42-329-00826	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-00828	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00829	PARKER & PARSLEY DEVELOPMENT L.P	Oil	06451
42-329-00830	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00831	MOBIL PRODUCING TX. & N.M. INC.	Oil	06451
42-329-00832	EP OPERATING LIMITED PARTNERSHIP	Oil	16295
42-329-00833
42-329-00836	XTO ENERGY INC.	Oil	28545
42-329-00837	MOBIL PRODUCING TX. & N.M. INC.	Gas	146414
42-329-00838	MOBIL PRODUCING TX. & N.M. INC.	Oil	26538
42-329-00839	COG OPERATING LLC	Oil	39630
42-329-00840	COG OPERATING LLC	Oil	28535
42-329-00841	COG OPERATING LLC	Oil
42-329-00842	COG OPERATING LLC	Oil	39630
42-329-00843	COG OPERATING LLC	Oil	39630
42-329-00844	COG OPERATING LLC	Oil	26538
42-329-00845	COG OPERATING LLC	Oil	39630
42-329-00846	XTO ENERGY INC.	Gas	057710
42-329-00847	HENRY PETROLEUM LP	Oil	26538
42-329-00848	COG OPERATING LLC	Oil	26538
42-329-00849	COG OPERATING LLC	Oil	28535
42-329-00850	COG OPERATING LLC	Oil	39630
42-329-00851	COG OPERATING LLC	Oil	04655
42-329-00852	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00854	PIONEER NATURAL RES. USA, INC.	Oil	23365
42-329-00855	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00856	PIONEER NATURAL RES. USA, INC.	Oil	23365
42-329-00857	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00858	PIONEER NATURAL RES. USA, INC.	Oil	23365
42-329-00859	PIONEER NATURAL RES. USA, INC.	Oil	23365
42-329-00860	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00861	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00862	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00863	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00864	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00865	XTO ENERGY INC.	Gas	040790
42-329-00866	MOBIL PRODUCING TX. & N.M. INC.	Oil	39576
42-329-00867	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00869	PIONEER NATURAL RES. USA, INC.	Oil	06441
42-329-00870	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00871	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00872	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-00873	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-00874	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-00875	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-00876	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-00877	Parker & Parsley Development Co.	Oil
42-329-00878	Parker & Parsley Development Co.	Oil
42-329-00879	Parker & Parsley Development Co.	Oil
42-329-00880	Parker & Parsley Development Co.	Oil	17778
42-329-00882	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00883	COG OPERATING LLC	Oil
42-329-00884	COG OPERATING LLC	Oil	39665
42-329-00885
42-329-00886	TERRACE PETROLEUM CORPORATION	Oil	34939
42-329-00888	XTO ENERGY INC.	Gas	207220
42-329-00889	XTO ENERGY INC.	Gas	202591
42-329-00890	MOBIL PRODUCING TX. & N.M. INC.	Oil	04116
42-329-00891	MOBIL PRODUCING TX. & N.M. INC.	Oil	03708
42-329-00892	XTO ENERGY INC.	Gas	033927
42-329-00893	COG OPERATING LLC	Oil	04116
42-329-00894	COG OPERATING LLC	Oil	04116
42-329-00895	HENRY PETROLEUM LP	Oil	14722
42-329-00896	HENRY PETROLEUM LP	Oil	04116
42-329-00897	XTO ENERGY INC.	Gas	053995
42-329-00898	COG OPERATING LLC	Oil	05637
42-329-00899	COG OPERATING LLC	Oil
42-329-00900	COG OPERATING LLC	Oil
42-329-00901	COG OPERATING LLC	Oil
42-329-00902	COG OPERATING LLC	Oil	04116
42-329-00903	HENRY PETROLEUM LP	Oil	39578
42-329-00904	MOBIL PRODUCING TX. & N.M. INC.	Oil	32156
42-329-00905	HENRY PETROLEUM LP	Oil	39578
42-329-00906	COG OPERATING LLC	Oil	29722
42-329-00907	MOBIL PRODUCING TX. & N.M. INC.	Oil	27199
42-329-00908	COG OPERATING LLC	Oil	29817
42-329-00909	COG OPERATING LLC	Oil	26538
42-329-00910	COG OPERATING LLC	Oil	36237
42-329-00911	COG OPERATING LLC	Oil	39629
42-329-00912	HENRY PETROLEUM LP	Oil	39629
42-329-00913	MOBIL OIL CORPORATION	Oil
42-329-00914	ENDEAVOR ENERGY RESOURCES L.P.	Gas	143217
42-329-00916	COG OPERATING LLC	Oil	15408
42-329-00917	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00918	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00919	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00920	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00921	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00922	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00923	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00925	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00926	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00927	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00929	MOBIL PRODUCING TX. & N.M. INC.	Oil
42-329-00930	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00931	Parker & Parsley Development Co.	Oil	21085
42-329-00932	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-00933	MOBIL PRODUCING TX. & N.M. INC.	Oil
42-329-00934	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00936	PIONEER NATURAL RES. USA, INC.	Oil	06449
42-329-00937	PIONEER NATURAL RES. USA, INC.	Oil	06449
42-329-00938	PIONEER NATURAL RES. USA, INC.	Oil	06449
42-329-00939	PIONEER NATURAL RES. USA, INC.	Oil	06449
42-329-00940	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00942	SAMSON HYDROCARBONS COMPANY	Oil	00615
42-329-00943	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00944	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00945	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00946	MOBIL OIL CORPORATION	Oil
42-329-00947	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00948	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00949	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00950	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00951	ENDEAVOR ENERGY RESOURCES L.P.	Oil	32382
42-329-00952	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-00953	MOBIL PRODUCING TX. & N.M. INC.	Oil	06451
42-329-00954	MOBIL PRODUCING TX. & N.M. INC.	Oil	06451
42-329-00955	MOBIL PRODUCING TX. & N.M. INC.	Oil	06451
42-329-00956	MOBIL PRODUCING TX. & N.M. INC.	Oil	06451
42-329-00957	FIVESTONES ENERGY LLC	Oil	39685
42-329-00958	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-00959	MOBIL PRODUCING TX. & N.M. INC.	Oil	06451
42-329-00961	MOBIL PRODUCING TX. & N.M. INC.	Oil	06451
42-329-00962	MOBIL PRODUCING TX. & N.M. INC.	Oil	06451
42-329-00963	MOBIL PRODUCING TX. & N.M. INC.	Oil	06451
42-329-00964	MOBIL PRODUCING TX. & N.M. INC.	Oil	06451
42-329-00965	COG OPERATING LLC	Oil	26538
42-329-00966	COG OPERATING LLC	Oil	26538
42-329-00967	COG OPERATING LLC	Oil	28535
42-329-00969	COG OPERATING LLC	Oil	04655
42-329-00970	COG OPERATING LLC	Oil	26538
42-329-00971	COG OPERATING LLC	Oil
42-329-00972	MOBIL PRODUCING TX. & N.M. INC.	Oil	39576
42-329-00973	COG OPERATING LLC	Oil	04655
42-329-00974	XTO ENERGY INC.	Oil	28207
42-329-00975	COG OPERATING LLC	Oil	39665
42-329-00976	COG OPERATING LLC	Oil	39665
42-329-00977	COG OPERATING LLC	Oil	26538
42-329-00978	COG OPERATING LLC	Oil	04655
42-329-00979	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00980	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00981	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00983	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00984	XTO ENERGY INC.	Oil
42-329-00985	COG OPERATING LLC	Oil	04116
42-329-00986	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-00987	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-00988	COG OPERATING LLC	Oil	04116
42-329-00989	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00990	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00991	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00992	MOBIL OIL CORPORATION	Oil	01175
42-329-00993	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-00994	PIONEER NATURAL RES. USA, INC.	Oil
42-329-00995	COG OPERATING LLC	Oil	05637
42-329-00996	COG OPERATING LLC	Oil	05637
42-329-00997	HENRY PETROLEUM LP	Oil	04116
42-329-00999	HENRY PETROLEUM LP	Oil	38239
42-329-01000	XTO ENERGY INC.	Oil	28207
42-329-01001	Parker & Parsley Development Co.	Oil	23609
42-329-01002	COG OPERATING LLC	Oil	30717
42-329-01004	MOBIL PRODUCING TX. & N.M. INC.	Gas	033926
42-329-01005	COG OPERATING LLC	Oil	05637
42-329-01006	COG OPERATING LLC	Oil	04116
42-329-01007	COG OPERATING LLC	Oil	04116
42-329-01008	COG OPERATING LLC	Oil	04116
42-329-01010	COG OPERATING LLC	Oil	05637
42-329-01011	COG OPERATING LLC	Oil	05637
42-329-01012	COG OPERATING LLC	Oil	05637
42-329-01013	COG OPERATING LLC	Oil	05637
42-329-01014	COG OPERATING LLC	Oil	05637
42-329-01015	COG OPERATING LLC	Oil
42-329-01016	COG OPERATING LLC	Oil	05637
42-329-01017	COG OPERATING LLC	Oil	05637
42-329-01018	COG OPERATING LLC	Oil	05637
42-329-01019	COG OPERATING LLC	Oil	05637
42-329-01020	COG OPERATING LLC	Oil	05637
42-329-01021	XTO ENERGY INC.	Oil	03708
42-329-01022	COG OPERATING LLC	Oil	04116
42-329-01023	COG OPERATING LLC	Oil	04116
42-329-01024	COG OPERATING LLC	Oil
42-329-01025	COG OPERATING LLC	Oil	04116
42-329-01026	COG OPERATING LLC	Oil	04116
42-329-01027	COG OPERATING LLC	Oil	04116
42-329-01028	MOBIL PRODUCING TX. & N.M. INC.	Oil	05637
42-329-01029	COG OPERATING LLC	Oil	01178
42-329-01030	COG OPERATING LLC	Oil	01178
42-329-01031	XTO ENERGY INC.	Gas	033657
42-329-01032	XTO ENERGY INC.	Gas	038990
42-329-01033	COG OPERATING LLC	Oil	05637
42-329-01034	XTO ENERGY INC.	Gas	033923
42-329-01035	XTO ENERGY INC.	Gas	050096
42-329-01036	XTO ENERGY INC.	Gas	019151
42-329-01037	COG OPERATING LLC	Oil	04116
42-329-01038	MOBIL PRODUCING TX. & N.M. INC.	Gas	019150
42-329-01039	XTO ENERGY INC.	Oil	01175
42-329-01040	XTO ENERGY INC.	Gas	131160
42-329-01041	XTO ENERGY INC.	Oil	01175
42-329-01042	COG OPERATING LLC	Oil	04116
42-329-01043	COG OPERATING LLC	Oil	04116
42-329-01044	MOBIL PRODUCING TX. & N.M. INC.	Oil	01175
42-329-01045	XTO ENERGY INC.	Oil	04116
42-329-01046	MOBIL PRODUCING TX. & N.M. INC.	Oil	01175
42-329-01047	XTO ENERGY INC.	Oil	01175
42-329-01048	XTO ENERGY INC.	Oil	03708
42-329-01049	XTO ENERGY INC.	Oil	01175
42-329-01050	MOBIL PRODUCING TX. & N.M. INC.	Gas	214955
42-329-01051	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01052	MOBIL PRODUCING TX. & N.M. INC.	Gas	207484
42-329-01053	COG OPERATING LLC	Oil	04116
42-329-01054	MOBIL PRODUCING TX. & N.M. INC.	Gas	150683
42-329-01055	MOBIL PRODUCING TX. & N.M. INC.	Oil	01175
42-329-01056	XTO ENERGY INC.	Oil	03708
42-329-01058	COG OPERATING LLC	Oil	04116
42-329-01059	EXXON CORP.	Oil
42-329-01060	COG OPERATING LLC	Oil	04655
42-329-01061	COG OPERATING LLC	Oil	26538
42-329-01062	COG OPERATING LLC	Oil	26538
42-329-01063	COG OPERATING LLC	Oil	39630
42-329-01064	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01065	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01066	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01067	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01068	XTO ENERGY INC.	Gas	049236
42-329-01069	MOBIL OIL CORPORATION	Oil
42-329-01070	COG OPERATING LLC	Oil	01178
42-329-01071	XTO ENERGY INC.	Oil	01175
42-329-01073	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01074	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01075	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01076	XTO ENERGY INC.	Gas	032126
42-329-01077	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01078	COG OPERATING LLC	Oil	01178
42-329-01079	XTO ENERGY INC.	Oil	02464
42-329-01080	COG OPERATING LLC	Oil	01178
42-329-01081	XTO ENERGY INC.	Oil	01175
42-329-01082	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01083	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01084	COG OPERATING LLC	Oil	01175
42-329-01085	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01086	PIONEER NATURAL RES. USA, INC.	Oil	06462
42-329-01087	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01089	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01090	PIONEER NATURAL RES. USA, INC.	Oil	06462
42-329-01091	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01092	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01093	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01094	PIONEER NATURAL RES. USA, INC.	Oil	24618
42-329-01095	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01096	XTO ENERGY INC.	Gas	034558
42-329-01097	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01098	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01099	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01100	XTO ENERGY INC.	Oil	03708
42-329-01102	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01103	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01104	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01105	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01106	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01107	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01109	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01110	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01112	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01113	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01114	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01115	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01116	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01117	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01118	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01119	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01120	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01121	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01122	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01123	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01125	COG OPERATING LLC	Oil	30122
42-329-01126	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01128	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-01131	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01132	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01133	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01134	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01135	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01136	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01137	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01138	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01139	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01140	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01141	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01142	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01143	COG OPERATING LLC	Oil	39630
42-329-01144	PURE RESOURCES, L.P.	Gas	238247
42-329-01145	MOBIL OIL CORPORATION	Gas	238246
42-329-01146	MOBIL PRODUCING TX. & N.M. INC.	Oil	34650
42-329-01147	MOBIL PRODUCING TX. & N.M. INC.	Oil	34650
42-329-01148	MOBIL PRODUCING TX. & N.M. INC.	Oil	34650
42-329-01149	MOBIL OIL CORPORATION	Oil	34650
42-329-01150	TITAN RESOURCES I, INC.	Oil	34650
42-329-01151	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01152	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01153	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01154	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01155	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01156	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01157	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01158	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01159	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01160	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01161	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01162	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01163	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01164	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01165	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01166	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01167	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01168	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01169	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01170	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01171	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01172	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01173	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01174	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01175	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01176	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01177	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01178	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01179	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01180	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01181	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01182	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01183	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01184	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01185	Mallard Petroleum, Inc.	Gas
42-329-01186	PIONEER NATURAL RES. USA, INC.	Oil	37016
42-329-01187	MALLARD EXPLORATION, INC.	Oil	24450
42-329-01188	REGIONS OPERATING, LLC	Oil	24449
42-329-01189	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24448
42-329-01196	BROCK OIL & GAS CORPORATION	Oil	00360
42-329-01198	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01200	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01202	COG OPERATING LLC	Oil
42-329-01204	LANGHAM PETROLEUM EXPL. CORP.	Oil
42-329-01206	MURPHY OIL CORPORATION	Oil	25017
42-329-01208	MURPHY OIL CORPORATION	Oil	25017
42-329-01209	MURPHY OIL CORPORATION	Oil	25017
42-329-01211	MURPHY OIL CORPORATION	Oil	25017
42-329-01212	MURPHY OIL CORPORATION	Oil	25017
42-329-01213	MURPHY OIL CORPORATION	Oil	25017
42-329-01214	CARLOW CORP.	Oil	06476
42-329-01217	Legacy Reserves Operating LP	Oil	36385
42-329-01218	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01221
42-329-01222	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01223	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01225	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01227	Sun Exploration & Production Co.	Oil	25034
42-329-01228	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01229	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01230	ENDEAVOR ENERGY RESOURCES L.P.	Oil	25034
42-329-01232	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01233	STEPHENS, AUTRY C.	Oil	25034
42-329-01234	SEABOARD PIPE & EQUIPMENT CO.	Oil
42-329-01235	SEABOARD PIPE & EQUIPMENT CO.	Oil
42-329-01237	SEABOARD PIPE & EQUIPMENT CO.	Oil
42-329-01240	OXY USA WTP LP	Gas	032925
42-329-01241	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01245	COG OPERATING LLC	Oil	04116
42-329-01246	XTO ENERGY INC.	Oil	03708
42-329-01247	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01248	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01250	ENERGY RESOURCES OIL & GAS CORP.	Oil
42-329-01251	Texam Oil Corporation	Oil	25017
42-329-01252	MARKIM CORPORATION	Oil
42-329-01253	ODESSA NATURAL GASOLINE COMPANY	Oil
42-329-01254	ODESSA NATURAL GASOLINE COMPANY	Oil
42-329-01255	ODESSA NATURAL GASOLINE COMPANY	Oil
42-329-01256	ODESSA NATURAL GASOLINE COMPANY	Oil
42-329-01257	OKLAHOMA RB OPERATING COMPANY	Gas	038231
42-329-01258	HILLIN PROD. CO.	Oil
42-329-01259	ODESSA NATURAL GASOLINE COMPANY	Oil
42-329-01260	HILLIN PROD. CO.	Oil
42-329-01261	ODESSA NATURAL GASOLINE COMPANY	Oil
42-329-01262	DE3 OPERATING LLC	Oil	32997
42-329-01264	ODESSA NATURAL GASOLINE COMPANY	Oil
42-329-01266	Odessa Natural Corporation	Oil
42-329-01267	ODESSA NATURAL GASOLINE COMPANY	Oil
42-329-01268	ODESSA NATURAL GASOLINE COMPANY	Oil
42-329-01269	Odessa Natural Corporation	Oil
42-329-01270	ODESSA NATURAL GASOLINE COMPANY	Oil
42-329-01275	Parker & Parsley Development Co.	Oil	06342
42-329-01279	Union Oil Company Of California	Oil
42-329-01281	Union Oil Company Of California	Oil
42-329-01284	O'NEILL PROPERTIES, LTD.	Gas	019472
42-329-01285	ONEILL, JOSEPH I., JR.	Oil	24509
42-329-01288	PIONEER NATURAL RES. USA, INC.	Oil	06498
42-329-01291	PIONEER NATURAL RES. USA, INC.	Oil	21776
42-329-01292	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01293	WESTERN DISPOSAL SYSTEMS, INC.	Oil	36187
42-329-01294	PIONEER NATURAL RES. USA, INC.	Oil	21776
42-329-01295	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01296	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06499
42-329-01297	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06499
42-329-01298	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01299	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01300	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01301	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01302	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01303	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-01306	PIONEER NATURAL RES. USA, INC.	Oil	06498
42-329-01308	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01309	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01310	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01311	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01312	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01313	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-01314	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01315	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01316	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34379
42-329-01317	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01318	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01319	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01320	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01321	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01322	DE3 OPERATING LLC	Oil	34481
42-329-01323	PITTS ENERGY CO.	Oil	16419
42-329-01325	WOOD & COCKBURN, INC.	Oil	21777
42-329-01326	DE3 OPERATING LLC	Oil	32217
42-329-01327	ENDEAVOR ENERGY RESOURCES L.P.	Oil	25835
42-329-01328	Parker & Parsley Development Co.	Oil	21777
42-329-01329	Phillips Petroleum Company	Oil	20827
42-329-01330	Phillips Petroleum Company	Oil	24260
42-329-01331	TEMPO ENERGY, INC.	Oil	31311
42-329-01332	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01333	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-01335	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01336	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01337	PIONEER NATURAL RES. USA, INC.	Oil	33713
42-329-01338	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01339
42-329-01340	Parker & Parsley Development Co.	Oil	31456
42-329-01341	Phillips Petroleum Company	Gas
42-329-01342	PIONEER NATURAL RES. USA, INC.	Oil	34403
42-329-01343	Phillips Petroleum Company	Oil	24414
42-329-01344	Phillips Petroleum Company	Oil	12429
42-329-01345	CONOCOPHILLIPS COMPANY	Oil	12429
42-329-01346	BURLESON PETROLEUM, INC.	Oil	12315
42-329-01347	BURLESON PETROLEUM, INC.	Oil	12315
42-329-01351	ADOBE OIL & GAS CORP.	Oil
42-329-01352	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01353	Parker & Parsley Development Co.	Oil	33713
42-329-01354	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01355	PIONEER NATURAL RES. USA, INC.	Oil	06480
42-329-01356
42-329-01357	Parker & Parsley Development Co.	Oil	33713
42-329-01358	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01362	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01363	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01364	COG OPERATING LLC	Oil	41430
42-329-01367	HENDON, WILLIAM E., JR.	Oil
42-329-01368	HENDON EXPLORATION, INC.	Oil
42-329-01369	CONINE, JIM, INC.	Oil
42-329-01371	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01372	Phillips Petroleum Company	Gas	119081
42-329-01374	XTO ENERGY INC.	Gas	033339
42-329-01375	XTO ENERGY INC.	Gas	033658
42-329-01376	Parker & Parsley Development Co.	Oil	06502
42-329-01377	PIONEER NATURAL RES. USA, INC.	Oil	06503
42-329-01380	COG OPERATING LLC	Gas	037219
42-329-01381	Henry Petroleum Corp.	Oil	01178
42-329-01382	COG OPERATING LLC	Oil	04116
42-329-01384	PIONEER NATURAL RES. USA, INC.	Oil	06503
42-329-01388	XTO ENERGY INC.	Oil
42-329-01390	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01392	Parker & Parsley Development Co.	Oil	06502
42-329-01393	PIONEER NATURAL RES. USA, INC.	Oil	06503
42-329-01394	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01396	WOOD & COCKBURN, INC.	Oil	21807
42-329-01397	PIONEER NATURAL RES. USA, INC.	Oil	06503
42-329-01398	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01400	PIONEER NATURAL RES. USA, INC.	Oil	06503
42-329-01401	PIONEER NATURAL RES. USA, INC.	Oil	06503
42-329-01402	COG OPERATING LLC	Oil	04116
42-329-01404	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06499
42-329-01405	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-01406	Phillips Petroleum Company	Oil	31886
42-329-01407	DE3 OPERATING LLC	Oil	24428
42-329-01408	Phillips Petroleum Company	Oil	25098
42-329-01409	OXY USA INC.	Gas	034094
42-329-01410	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01411	CONINE, JIM, INC.	Oil
42-329-01412	HALLIBURTON ENERGY SERVICES, INC	Oil	02424
42-329-01413	Parker & Parsley Development Co.	Oil	15700
42-329-01415
42-329-01416	CHEVRON U. S. A. INC.	Gas	020018
42-329-01417	MOBIL PRODUCING TX. & N.M. INC.	Gas
42-329-01419	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01421	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01422	MOBIL PRODUCING TX. & N.M. INC.	Oil
42-329-01423	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01428	OKLAHOMA RB OPERATING COMPANY	Gas	038232
42-329-01429	OKLAHOMA RB OPERATING COMPANY	Gas	038233
42-329-01435	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01436	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01437
42-329-01438	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-01439	Bta Oil Producers	Oil	20830
42-329-01440	PARKER & PARSLEY PETROLEUM CO.	Gas	043391
42-329-01442	PARKER & PARSLEY PETROLEUM CO.	Gas	039030
42-329-01443	PARKER & PARSLEY PETROLEUM CO.	Gas	043550
42-329-01444	MIDKIFF, JOHN	Oil	29157
42-329-01445	PARKER & PARSLEY PETROLEUM CO.	Gas	049182
42-329-01449	ENDEAVOR ENERGY RESOURCES L.P.	Oil	11878
42-329-01450	ENDEAVOR ENERGY RESOURCES L.P.	Oil	12419
42-329-01451	ENDEAVOR ENERGY RESOURCES L.P.	Oil	39309
42-329-01452	PARKER & PARSLEY DEVELOPMENT L.P	Oil	07110
42-329-01453	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-01454	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01455	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06517
42-329-01456	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01457	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-01460	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01461	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01462	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01463	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01464	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01465	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06518
42-329-01467	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-01468	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06518
42-329-01469	ENDEAVOR ENERGY RESOURCES L.P.	Oil	29188
42-329-01470	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-01471	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06518
42-329-01472	Texaco Inc.	Oil	25017
42-329-01473	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06516
42-329-01474	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06518
42-329-01475	Texaco Inc.	Oil	25017
42-329-01476	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-01477	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06519
42-329-01478	Texaco Inc.	Oil	25017
42-329-01479	STEPHENS, AUTRY C.	Oil	06516
42-329-01480	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06519
42-329-01481	Texaco Inc.	Oil	25017
42-329-01482	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06516
42-329-01483	Texaco Inc.	Oil
42-329-01485	ALTO MINERALS, INC.	Oil	06520
42-329-01486	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06520
42-329-01487	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35824
42-329-01488	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36180
42-329-01489
42-329-01490	Texaco Inc.	Oil	25017
42-329-01491	Texaco Inc.	Oil	25017
42-329-01492	PIONEER NATURAL RES. USA, INC.	Oil	06521
42-329-01493	PIONEER NATURAL RES. USA, INC.	Oil	06521
42-329-01495	CHEVRON U. S. A. INC.	Gas	020084
42-329-01496	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01498	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01499	PIONEER NATURAL RES. USA, INC.	Oil	06523
42-329-01500	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01501	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01502	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01503	PIONEER NATURAL RES. USA, INC.	Oil	06523
42-329-01508	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06562
42-329-01509	XTO ENERGY INC.	Oil	01175
42-329-01511	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01513	XTO ENERGY INC.	Oil	01175
42-329-01519
42-329-01521	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01522	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01523	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01524	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01525	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01539	STEPHENS, AUTRY C.	Oil	30116
42-329-01540	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-01548	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-01557	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01558	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01559	Apache Corporation	Oil	18804
42-329-01561	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01562	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01564
42-329-01565	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01566	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-01567	Apache Corporation	Gas	030958
42-329-01568	Apache Corporation	Oil	01186
42-329-01569	Apache Corporation	Oil	01186
42-329-01570	Apache Corporation	Oil	01186
42-329-01571	Apache Corporation	Gas	031662
42-329-01572	Apache Corporation	Oil	01186
42-329-01573	Apache Corporation	Oil	01186
42-329-01574	Apache Corporation	Oil	01186
42-329-01575	Apache Corporation	Oil	01186
42-329-01576	Apache Corporation	Oil	01186
42-329-01577	Apache Corporation	Oil	01186
42-329-01578	Apache Corporation	Oil	01186
42-329-01579	Apache Corporation	Oil	01186
42-329-01580	Apache Corporation	Oil	01186
42-329-01581	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01582	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01584	Apache Corporation	Oil	06698
42-329-01585	Apache Corporation	Oil	34421
42-329-01586	Apache Corporation	Oil	34421
42-329-01587
42-329-01588	Apache Corporation	Oil	06708
42-329-01589	Apache Corporation	Gas	030953
42-329-01591	Apache Corporation	Oil	03955
42-329-01592	ARCO PERMIAN	Oil	03955
42-329-01593	Apache Corporation	Oil	01186
42-329-01594	Apache Corporation	Oil	34447
42-329-01596	ARCO PERMIAN	Oil	03955
42-329-01597	Apache Corporation	Gas	030954
42-329-01599	Apache Corporation	Gas	030955
42-329-01600	Apache Corporation	Gas	159004
42-329-01601	Apache Corporation	Gas	030957
42-329-01602	Apache Corporation	Oil	01186
42-329-01603	Apache Corporation	Oil	32337
42-329-01604	ARCO OIL & GAS CO.	Oil	35166
42-329-01605	ENDEAVOR ENERGY RESOURCES L.P.	Oil	16542
42-329-01606	ENDEAVOR ENERGY RESOURCES L.P.	Oil	16725
42-329-01607	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34719
42-329-01608	Apache Corporation	Oil	06698
42-329-01609	Apache Corporation	Oil	32337
42-329-01610	ENDEAVOR ENERGY RESOURCES L.P.
42-329-01611	Apache Corporation	Oil	34351
42-329-01612	ARCO PERMIAN	Oil
42-329-01613	ATLANTIC RICHFIELD CO.	Oil	22928
42-329-01614	Apache Corporation	Oil	06707
42-329-01615	Apache Corporation	Oil	06707
42-329-01617	Apache Corporation	Oil
42-329-01618	Apache Corporation	Oil	34421
42-329-01619	ARCO PERMIAN	Oil	11418
42-329-01620	ENDEAVOR ENERGY RESOURCES L.P.	Oil	08658
42-329-01624	Apache Corporation	Oil	06707
42-329-01626	J. S. Q. INC.	Oil	21464
42-329-01636	MIDKIFF, HUNTER	Oil	30855
42-329-01638	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01639	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-01641	MCDONALD & MIDKIFF	Oil	27843
42-329-01642	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-01643	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-01645	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-01647	XTO ENERGY INC.	Gas	019166
42-329-01650
42-329-01652	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01653	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01656	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01657	HARDING OIL CO.	Oil	22895
42-329-01658	HENRY PETROLEUM LP	Gas	019167
42-329-01659	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01663	Parker & Parsley Development Co.	Gas	043565
42-329-01664	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01665	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01666	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01667	Samson Resources Company	Oil	34039
42-329-01668	SOHIO PETROLEUM CO.
42-329-01669	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34039
42-329-01672	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34039
42-329-01674	STANDARD OIL PRODUCTION COMPANY	Oil
42-329-01676	FIREBIRD ENERGY LLC	Oil	33552
42-329-01677	FIREBIRD ENERGY LLC	Oil	42628
42-329-01678	CHEVRON U. S. A. INC.	Gas	020030
42-329-01679	CHEVRON U. S. A. INC.	Gas	020029
42-329-01680	COG OPERATING LLC	Oil
42-329-01682	PARSLEY ENERGY OPERATIONS, LLC	Oil	06373
42-329-01683	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06374
42-329-01685	ENDEAVOR ENERGY RESOURCES L.P.	Oil	25251
42-329-01686	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06377
42-329-01687	STEPHENS, AUTRY C.	Oil	06378
42-329-01688	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37749
42-329-01689	ENDEAVOR ENERGY RESOURCES L.P.
42-329-01692	COG OPERATING LLC	Oil
42-329-01693	COG OPERATING LLC	Oil	04116
42-329-01694	COG OPERATING LLC	Oil	04116
42-329-01695	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01702	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01703	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01704	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01705	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01706	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01707	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01708	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01709	COG OPERATING LLC	Oil
42-329-01710	COG OPERATING LLC	Oil	04116
42-329-01711	MOBIL OIL CORPORATION	Oil	01175
42-329-01712	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01713	MOBIL PRODUCING TX. & N.M. INC.	Oil
42-329-01714	MOBIL PRODUCING TX. & N.M. INC.	Oil	06451
42-329-01715
42-329-01716	COG OPERATING LLC	Oil	39665
42-329-01719	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01720	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01721	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01722	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01723	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01724	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-01725	MOBIL OIL CORPORATION	Oil
42-329-01727	MWS PRODUCING, INC.	Oil	06569
42-329-01728	MWS PRODUCING, INC.	Oil
42-329-01729	ENDEAVOR ENERGY RESOURCES L.P.	Oil	22571
42-329-01730	ENDEAVOR ENERGY RESOURCES L.P.	Oil	22571
42-329-01731	Legacy Reserves Operating LP	Oil	06560
42-329-01732	CARLOW CORP.	Oil	06567
42-329-01733	CARLOW CORP.	Oil	34275
42-329-01734
42-329-01739	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-01740	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-01741	ENDEAVOR ENERGY RESOURCES L.P.	Oil	12902
42-329-01745	Legacy Reserves Operating LP	Oil	06560
42-329-01747	STEPHENS, AUTRY C.	Oil	33823
42-329-01748	COLA PETROLEUM, INC.
42-329-01749	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01750	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01751	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01755	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01756	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01757	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01758	TEXACO E & P INC.	Oil	33764
42-329-01759	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-01760	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-01761	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01762	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-01765	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-01766	ENDEAVOR ENERGY RESOURCES L.P.	Oil	27353
42-329-01767	TEXACO E & P INC.	Oil	34652
42-329-01769	Texaco Inc.	Oil
42-329-01770	STEPHENS, AUTRY C.	Oil	35930
42-329-01771	Texaco Inc.	Oil
42-329-01773	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01776	Texaco Inc.	Oil	30677
42-329-01777	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01778	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34651
42-329-01780	XTO ENERGY INC.	Oil	08280
42-329-01783	Texaco Inc.	Oil
42-329-01784	DE3 OPERATING LLC	Gas	019587
42-329-01786	Texaco Inc.	Oil	27204
42-329-01787	Texaco Inc.	Oil	08280
42-329-01788	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01789	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01790	Texaco Inc.	Oil	34651
42-329-01791	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01793	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01794	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01796	TEXACO E & P INC.	Oil	13955
42-329-01797	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01800	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01801	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01802	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01803	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01804	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01805	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01807	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01808	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01809	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-01810	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01811	PARKER & PARSLEY DEVELOPMENT L.P	Gas	020915
42-329-01812	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01813	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01814	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01815	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01816	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-01817	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01818	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01819	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01820	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01821	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01822	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01823	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01824	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01825	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01826	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01827	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01828	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01829	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01830	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01831	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-01832	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01833	Texaco Inc.	Oil	23397
42-329-01834	Texaco Inc.	Oil
42-329-01835	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36649
42-329-01836	Texaco Inc.	Oil	24504
42-329-01837	Texaco Inc.	Oil
42-329-01838	Texaco Inc.	Oil	36791
42-329-01839	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01841	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-01842	ENDEAVOR ENERGY RESOURCES L.P.	Oil	40264
42-329-01844	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36885
42-329-01845	ENDEAVOR ENERGY RESOURCES L.P.	Oil	16821
42-329-01847	Texaco Inc.	Oil
42-329-01848	Texaco Inc.	Oil
42-329-01849	Texaco Inc.	Oil
42-329-01850	Texaco Inc.	Gas	282447
42-329-01851	TEXACO E & P INC.	Oil
42-329-01852	Texaco Inc.	Oil
42-329-01854	COG OPERATING LLC	Oil
42-329-01855	TEXACO E & P INC.	Oil
42-329-01856	Texaco Inc.	Oil
42-329-01857	CHEVRON U. S. A. INC.	Oil	00616
42-329-01858	CHEVRON U. S. A. INC.	Oil	02646
42-329-01859	Texaco Inc.	Oil
42-329-01860	TEXACO E & P INC.	Oil
42-329-01861	CHEVRON U. S. A. INC.	Gas	281679
42-329-01862	Texaco Inc.	Oil
42-329-01864	Texaco Inc.	Oil
42-329-01865	Texaco Inc.	Oil
42-329-01866	Texaco Inc.	Oil
42-329-01868	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01869	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01870	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01871	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01872	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34379
42-329-01873	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34379
42-329-01874	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01875	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01876	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-01878	ENDEAVOR ENERGY RESOURCES L.P.	Oil	14938
42-329-01883	BRAHANEY DRILLING CO.	Oil	25532
42-329-01884	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01886	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01887	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01888	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01889	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01890	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01891	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01892	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01893	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-01895	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01898	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06629
42-329-01899	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06630
42-329-01904	CHEVRON U. S. A. INC.	Gas	020044
42-329-01905	CHEVRON U. S. A. INC.	Gas	020045
42-329-01906	CHEVRON U. S. A. INC.	Gas	020031
42-329-01907	CHEVRON U. S. A. INC.	Gas	020046
42-329-01908	CHEVRON U. S. A. INC.	Gas	020012
42-329-01909	CHEVRON U. S. A. INC.	Gas	020043
42-329-01910	COG OPERATING LLC	Oil	01166
42-329-01911	COG OPERATING LLC	Oil
42-329-01912	COG OPERATING LLC	Oil	34636
42-329-01913	ANADARKO PETROLEUM CORPORATION	Oil	34636
42-329-01914	CHEVRON U. S. A. INC.	Gas	020051
42-329-01915	ANADARKO PETROLEUM CORPORATION	Oil	34636
42-329-01916	FOUR STAR OIL AND GAS COMPANY	Gas	020049
42-329-01917	ANADARKO PETROLEUM CORPORATION	Oil	34636
42-329-01918	COG OPERATING LLC	Oil	10576
42-329-01919	FOUR STAR OIL AND GAS COMPANY	Oil	01166
42-329-01920	ANADARKO PETROLEUM CORPORATION	Oil	10576
42-329-01921	ANADARKO PETROLEUM CORPORATION	Oil	10576
42-329-01922	COG OPERATING LLC	Oil	01166
42-329-01923	CHEVRON U. S. A. INC.	Oil	32202
42-329-01925	ANADARKO PETROLEUM CORPORATION	Oil	10576
42-329-01926	ANADARKO PETROLEUM CORPORATION	Oil	10576
42-329-01927	ANADARKO PETROLEUM CORPORATION	Oil	10576
42-329-01928	COG OPERATING LLC	Oil	34636
42-329-01929	ANADARKO PETROLEUM CORPORATION	Oil	10576
42-329-01930	COG OPERATING LLC	Oil
42-329-01931	ANADARKO PETROLEUM CORPORATION	Oil	34636
42-329-01932	CHEVRON U. S. A. INC.	Gas	020028
42-329-01933	CHEVRON U. S. A. INC.	Gas	020027
42-329-01936	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01937	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01938	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01939	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01945	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01955	PIONEER NATURAL RES. USA, INC.	Oil
42-329-01956	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-01957	WTG EXPLORATION	Oil	32267
42-329-01958	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37257
42-329-01959	Texas Pacific Oil Company, Inc.	Oil	22011
42-329-01960	WTG EXPLORATION	Oil	35867
42-329-01961	WTG EXPLORATION	Gas	019593
42-329-01962	WTG EXPLORATION	Oil	31273
42-329-01963	Phillips Petroleum Company	Oil	32003
42-329-01964	WTG EXPLORATION	Oil	24502
42-329-01965	Texas Pacific Oil Company, Inc.	Oil	24503
42-329-01966	Lario Oil & Gas Company	Oil	06644
42-329-01967	Lario Oil & Gas Company	Oil	06644
42-329-01968	Lario Oil & Gas Company	Oil	06644
42-329-01969	Lario Oil & Gas Company	Oil	06644
42-329-01970	CHEVRON U. S. A. INC.	Gas	079735
42-329-01971	CHEVRON U. S. A. INC.	Gas	020033
42-329-01972	Getty Oil Co.	Oil
42-329-01973	CHEVRON U. S. A. INC.	Gas	020032
42-329-01974	Getty Oil Co.	Oil
42-329-01975	CHEVRON U. S. A. INC.	Gas	020009
42-329-01976	CHEVRON U. S. A. INC.	Gas	020011
42-329-01977	Reading & Bates Petroleum Co.	Oil
42-329-01979	Reading & Bates Petroleum Co.	Oil
42-329-01985	CHEVRON U. S. A. INC.	Gas	020052
42-329-01986	COG OPERATING LLC	Oil	01166
42-329-01987	CHEVRON U. S. A. INC.	Oil	21593
42-329-01988	CHEVRON U. S. A. INC.	Oil	00616
42-329-01989	Texaco Inc.	Gas
42-329-01990
42-329-01991	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34739
42-329-01992	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06652
42-329-01993	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06652
42-329-01994	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-01995	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06652
42-329-01996	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06652
42-329-01997	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06652
42-329-01998	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06652
42-329-01999	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06652
42-329-02000	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06652
42-329-02001	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06652
42-329-02002	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06652
42-329-02003	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06652
42-329-02004	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06652
42-329-02005	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06652
42-329-02006	FASKEN OIL AND RANCH, LTD.	Oil	23729
42-329-02007	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-02008
42-329-02010	Southland Royalty Company	Oil	33552
42-329-02011	CHEVRON U. S. A. INC.	Gas	020034
42-329-02012	FIREBIRD ENERGY LLC	Oil	42628
42-329-02013	CHEVRON U. S. A. INC.	Gas	020035
42-329-02015	FLOYD, TIMBER INC.	Oil	06654
42-329-02022	PENNZOIL EXPLORATION & PROD. CO.	Oil	07377
42-329-02023	PENNZOIL EXPLORATION & PROD. CO.	Oil
42-329-02024	Legacy Reserves Operating LP	Oil	13771
42-329-02025	PENNZOIL EXPLORATION & PROD. CO.	Oil	10167
42-329-02026	CHEVRON U. S. A. INC.	Oil	10167
42-329-02027	CHEVRON U. S. A. INC.	Oil	34644
42-329-02028	PIONEER NATURAL RES. USA, INC.	Oil	12103
42-329-02029	PENNZOIL EXPLORATION & PROD. CO.	Oil	34648
42-329-02030	OXY USA WTP LP	Gas	030514
42-329-02031	OXY USA WTP LP	Oil	15848
42-329-02032	DEVON ENERGY PRODUCTION CO, L.P.	Oil	29150
42-329-02033	Gulf Oil Corp.	Oil	34649
42-329-02034	OXY USA WTP LP	Oil	15850
42-329-02035	PIONEER NATURAL RES. USA, INC.	Oil
42-329-02036	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-02037	PIONEER NATURAL RES. USA, INC.	Oil
42-329-02038
42-329-02039	TEXAS CRUDE OPERATOR, INC.	Oil	16955
42-329-02040	PIONEER NATURAL RES. USA, INC.	Oil
42-329-02043	OXY USA INC.	Oil	34646
42-329-02044	OXY USA WTP LP	Oil	15857
42-329-02046	CITIES SERVICE OIL CO.	Oil	15848
42-329-02047	OXY USA WTP LP	Oil	31940
42-329-02048	OXY USA WTP LP	Oil	15860
42-329-02049	OXY USA INC.	Oil	15850
42-329-02051
42-329-02052
42-329-02053
42-329-02054	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-02055	OXY USA WTP LP	Oil	15848
42-329-02056	OXY USA WTP LP	Oil	15858
42-329-02057
42-329-02058	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15213
42-329-02059
42-329-02060
42-329-02061
42-329-02062	ROBERTSON RESOURCES, INC.	Oil	21681
42-329-02064	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06602
42-329-02067	HENDRICKSON, A. N.	Oil
42-329-02071	Union Oil Company Of California
42-329-02077	MOBIL OIL CORPORATION	Gas
42-329-02079	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06693
42-329-02080	MWJ PRODUCING COMPANY	Oil	06602
42-329-02081	Graham Royalty, Ltd.	Oil
42-329-02082	Texaco Inc.	Oil
42-329-02083	XTO ENERGY INC.	Gas	019154
42-329-02202	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20830
42-329-02203	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-02204	MOBIL PRODUCING TX. & N.M. INC.	Gas	146412
42-329-02205	XTO ENERGY INC.	Oil	03708
42-329-02206	COG OPERATING LLC	Oil	04116
42-329-03187	MOMENTUM OPERATING CO., INC.	Oil	25017
42-329-10001	OXY USA WTP LP	Gas	030512
42-329-10002	OXY USA WTP LP	Gas	032909
42-329-10003	Apache Corporation	Oil	34447
42-329-10004	Cities Service Oil & Gas Corp.	Gas
42-329-10005	CHEVRON U. S. A. INC.	Gas	031453
42-329-10006	CHEVRON U. S. A. INC.	Gas	020050
42-329-10007	OXY USA WTP LP	Gas	031083
42-329-10008	Apache Corporation	Gas	030959
42-329-10009	OXY USA WTP LP	Gas	030477
42-329-10010	OXY USA WTP LP	Gas	030485
42-329-10011	CHEVRON U. S. A. INC.	Gas	032054
42-329-10012	Parker & Parsley Development Co.	Oil	17778
42-329-10013	OXY USA WTP LP	Gas	138909
42-329-10014	TEXACO E & P INC.	Oil	34645
42-329-10015	CHEVRON U. S. A. INC.	Oil
42-329-10016	CHEVRON U. S. A. INC.	Gas	031169
42-329-10017	OXY USA WTP LP	Oil	15850
42-329-10018	DE3 OPERATING LLC	Oil	24388
42-329-10019	OXY USA WTP LP	Gas	030507
42-329-10020	OXY USA WTP LP	Gas	030497
42-329-10021	OXY USA INC.	Gas	030486
42-329-10022	CHEVRON U. S. A. INC.	Gas	030613
42-329-10023	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34791
42-329-10024	Apache Corporation	Oil
42-329-10025	CHEVRON U. S. A. INC.	Gas	020048
42-329-10026	CHEVRON U. S. A. INC.	Gas	020047
42-329-10027	OXY USA WTP LP	Gas	030505
42-329-10028	OXY USA WTP LP	Oil	34635
42-329-10029	OXY USA INC.	Gas	030493
42-329-10030	MOBIL PRODUCING TX. & N.M. INC.	Gas	032123
42-329-10031	OXY USA WTP LP	Gas	031084
42-329-10032	OXY USA INC.	Oil	34646
42-329-10033	CHEVRON U. S. A. INC.	Gas	031167
42-329-10034	ENDEAVOR ENERGY RESOURCES L.P.	Oil	17495
42-329-10035	OXY USA INC.	Oil	34646
42-329-10037	ENDEAVOR ENERGY RESOURCES L.P.	Oil	18520
42-329-10038	XTO ENERGY INC.	Gas	019153
42-329-10039	OXY USA WTP LP	Gas	030513
42-329-10042	MWJ PRODUCING COMPANY	Oil	24024
42-329-10043	Texaco Inc.	Oil	17492
42-329-10045	CHEVRON U. S. A. INC.	Gas	030615
42-329-10046	CHEVRON U. S. A. INC.	Gas	030612
42-329-10047	W.O.G., INC.	Oil	32525
42-329-10048	MOBIL PRODUCING TX. & N.M. INC.	Oil	06451
42-329-10049	CHEVRON U. S. A. INC.	Gas	031170
42-329-10050	OXY USA INC.	Gas	030492
42-329-10051	CHEVRON U. S. A. INC.	Gas	030614
42-329-10052	Texaco Inc.	Oil	34645
42-329-10053	CHEVRON U. S. A. INC.	Gas	030611
42-329-10054	OXY USA WTP LP	Gas	030484
42-329-10057	ASHMUN & HILLIARD	Oil	25185
42-329-10058	ASHMUN & HILLIARD	Oil	25187
42-329-10059	ASHMUN & HILLIARD	Oil	25186
42-329-10060	Humble Oil & Refining Co.	Oil
42-329-10061	BAXTER, MURPHY H.	Oil
42-329-10062	OXY USA WTP LP	Gas	033410
42-329-10063	OXY USA WTP LP	Oil	34646
42-329-10064	OXY USA WTP LP	Gas	034336
42-329-10065	Coastal Oil & Gas Corporation	Oil
42-329-10066	MWS PRODUCING, INC.	Oil
42-329-10069	PIONEER NATURAL RES. USA, INC.	Oil	18793
42-329-10070	EXXON CORP.	Oil
42-329-10071	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-10072	PIONEER NATURAL RES. USA, INC.	Oil
42-329-10073	PIONEER NATURAL RES. USA, INC.	Oil
42-329-10074	NORTHSTAR OPERATING COMPANY	Oil	19171
42-329-10076	ENVIRONMENTAL DISPOSAL SYSTEMS	Oil	33095
42-329-10077	MOBIL PRODUCING TX. & N.M. INC.	Oil	06358
42-329-10079	BP America Production Company	Gas	032808
42-329-10080	ATLANTIC RICHFIELD CO.	Oil
42-329-10082	MOBIL PRODUCING TX. & N.M. INC.	Gas	032807
42-329-10083	MOBIL OIL CORPORATION	Oil
42-329-10084	MWJ PRODUCING COMPANY	Oil	18381
42-329-10085	Texaco Inc.	Oil	34645
42-329-10086	TEXACO E & P INC.	Gas	035903
42-329-10087	MULLOY OPERATING, INC.	Oil	28830
42-329-10089	ENDEAVOR ENERGY RESOURCES L.P.	Gas	034331
42-329-10092	OXY USA WTP LP	Gas	036404
42-329-10096	ASHMUN & HILLIARD	Oil	25188
42-329-10097	Texaco Inc.	Gas	275066
42-329-10098	Texaco Inc.	Oil	25265
42-329-10099	STANDARD OIL COMPANY OF TEXAS	Oil	18381
42-329-10111	LANGHAM PETROLEUM EXPL. CORP.	Oil	19649
42-329-10112	LANGHAM PETROLEUM EXPL. CORP.	Oil
42-329-10113	LANGHAM PETROLEUM EXPL. CORP.	Oil
42-329-10114	MWS PRODUCING, INC.	Oil	19382
42-329-10115	MWS PRODUCING, INC.	Oil	19382
42-329-10116	OXY USA WTP LP	Gas	037416
42-329-10117	OXY USA WTP LP	Gas	036735
42-329-10118	Texaco Inc.	Oil	40425
42-329-10119	Texaco Inc.	Oil	25265
42-329-10121	Texaco Inc.	Oil	25265
42-329-10122	CHEVRON U. S. A. INC.	Oil	25265
42-329-10123	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23394
42-329-10125	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-10126	Texaco Inc.	Oil	27165
42-329-10127	TEXACO E & P INC.	Gas	269634
42-329-10301	OXY USA WTP LP	Gas	288898
42-329-10303	LANGHAM PETROLEUM EXPL. CORP.	Oil	19649
42-329-10304	Texaco Inc.	Oil	20061
42-329-10305	OXY USA WTP LP	Gas	037754
42-329-10306	Apache Corporation	Oil
42-329-10307	Texaco Inc.	Oil	25265
42-329-10308	LANGHAM PETROLEUM EXPL. CORP.	Oil
42-329-10309	OXY USA WTP LP	Gas	037761
42-329-10310	LANGHAM PETROLEUM EXPL. CORP.	Oil
42-329-10311	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-10312	OXY USA WTP LP	Gas	039837
42-329-10313	OXY USA WTP LP	Oil	34646
42-329-10314	OXY USA WTP LP	Gas	038174
42-329-10315	OXY USA WTP LP	Gas	038871
42-329-10316	OXY USA INC.	Gas	039184
42-329-10317	MOBIL PRODUCING TX. & N.M. INC.	Oil	06451
42-329-10318	PIONEER NATURAL RES. USA, INC.	Oil
42-329-10319	Delta Drilling Co.	Oil
42-329-10321	Shell Oil Company	Oil	20081
42-329-10322	Texaco Inc.	Oil	25265
42-329-10323	Texaco Inc.	Oil
42-329-10324	Apache Corporation	Oil	19923
42-329-10326	Texaco Inc.	Oil
42-329-10327	TEXACO E & P INC.	Oil	40422
42-329-10328	PIONEER NATURAL RES. USA, INC.	Oil	20070
42-329-10331	Texaco Inc.	Oil	25265
42-329-10332	Texaco Inc.	Oil	25265
42-329-10333	PIONEER NATURAL RES. USA, INC.	Oil
42-329-10334	Texaco Inc.	Oil	25265
42-329-10335	PITTS ENERGY CO.	Oil	16419
42-329-10336	PIONEER NATURAL RES. USA, INC.	Oil
42-329-10337	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-10338	PIONEER NATURAL RES. USA, INC.	Oil
42-329-10339	PIONEER NATURAL RES. USA, INC.	Oil
42-329-10340	PIONEER NATURAL RES. USA, INC.	Oil
42-329-10341	HENRY PETROLEUM LP	Gas	040297
42-329-10342	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-10343	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-10344	Hunt Oil Company	Oil	20269
42-329-10345	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-10346	TEXACO E & P INC.	Oil	20353
42-329-10347	CHEVRON U. S. A. INC.	Oil	20176
42-329-10348	WALTER EXPLORATION COMPANY	Oil	20392
42-329-10349	LANGHAM PETROLEUM EXPL. CORP.	Oil	20335
42-329-10350	MERIT ENERGY COMPANY	Oil	01166
42-329-10351	Parker & Parsley Development Co.	Oil	20422
42-329-10352	PIONEER NATURAL RES. USA, INC.	Oil	33707
42-329-10353	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23653
42-329-10354	Getty Oil Co.	Oil	30667
42-329-10355	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20457
42-329-10356	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-10357	LANGHAM PETROLEUM EXPL. CORP.	Oil
42-329-10358	PIONEER NATURAL RES. USA, INC.	Oil
42-329-10359	Damson Oil Corp.	Oil
42-329-10361	Petroleum Corporation Of Texas	Oil
42-329-10362	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20562
42-329-10363
42-329-10364	Texaco Inc.	Oil	25265
42-329-10365	CRAIN, M. G.	Oil	20593
42-329-10366	PIONEER NATURAL RES. USA, INC.	Oil	20597
42-329-10367	MOBIL PRODUCING TX. & N.M. INC.	Oil	32156
42-329-10368	BROWN, TOM, DRLG. CO., INC.	Oil	20630
42-329-10369	Lario Oil & Gas Company	Oil	06644
42-329-10370	Getty Oil Co.	Oil	21455
42-329-10371	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20682
42-329-10372	TEXACO PRODUCING INC.	Oil	06644
42-329-10373	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20961
42-329-10374	Damson Oil Corp.	Oil
42-329-10375	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-10376	Damson Oil Corp.	Oil
42-329-10377
42-329-10378
42-329-10379	Texaco Inc.	Oil	25265
42-329-10381	TEXACO PRODUCING INC.	Oil	26319
42-329-10382	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-10383
42-329-10384	UMC Petroleum Corporation	Oil	07377
42-329-10385	Petroleum Corporation Of Texas	Oil
42-329-10386	BLUESTEM ENERGY HOLDINGS, LLC	Oil	42307
42-329-10387	LANGHAM PETROLEUM EXPL. CORP.	Oil
42-329-10388	Henry Petroleum Corp.	Oil	23907
42-329-10389
42-329-10390	LANGHAM PETROLEUM EXPL. CORP.	Oil	20797
42-329-10391	PIONEER NATURAL RES. USA, INC.	Oil	21240
42-329-10392	PIONEER NATURAL RES. USA, INC.	Oil	06268
42-329-10394	ADOBE RESOURCES CORPORATION	Oil
42-329-10395	Damson Oil Corp.	Oil
42-329-10397	LANGHAM PETROLEUM EXPL. CORP.	Oil
42-329-10398	CONNALLY OIL CO., INC.	Oil
42-329-10399
42-329-10400	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-10401
42-329-10402	OXY USA WTP LP	Gas	044154
42-329-10403	LANGHAM PETROLEUM EXPL. CORP.	Oil
42-329-10413	ENDEAVOR ENERGY RESOURCES L.P.	Oil	20983
42-329-10414	STEPHENS, AUTRY C.	Oil	20999
42-329-10415	STEPHENS, AUTRY C.	Oil	20999
42-329-10416	Legacy Reserves Operating LP	Oil	20998
42-329-10417	Legacy Reserves Operating LP	Oil	20998
42-329-10418	Legacy Reserves Operating LP	Oil	20998
42-329-10419	Phillips Petroleum Company	Oil	33749
42-329-10420	OXY USA INC.	Gas	045022
42-329-10421	COASTAL MANAGEMENT CORPORATION	Oil	34503
42-329-10423	STANDARD OIL PRODUCTION COMPANY	Oil
42-329-10424	MOJAVE OPERATING COMPANY, INC.	Oil
42-329-10425	STEPHENS, AUTRY C.	Oil	20999
42-329-10426	Hunt Oil Company	Oil	21071
42-329-10427	DE3 OPERATING LLC	Oil	21111
42-329-10428	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-10430	Hunt Oil Company	Oil	21071
42-329-10431	LEMON, HULEN H.	Oil
42-329-10433	BLUESTEM ENERGY HOLDINGS, LLC	Oil	42307
42-329-10437	COG OPERATING LLC	Oil	15080
42-329-10439
42-329-11060
42-329-13822	DISCOVERY OPERATING, INC.	Oil	36673
42-329-20002
42-329-20012	BLUESTEM ENERGY HOLDINGS, LLC	Oil	20870
42-329-20022	Houston Oil & Minerals Corp.
42-329-20023	PIONEER NATURAL RES. USA, INC.	Oil	29402
42-329-20024	PIONEER NATURAL RES. USA, INC.	Oil
42-329-20041	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34354
42-329-20046
42-329-20071
42-329-20107	Texaco Inc.	Gas	256653
42-329-20110	Texaco Inc.	Oil	40426
42-329-30002	ENERGEN RESOURCES CORPORATION	Oil	21223
42-329-30003	MOBIL PRODUCING TX. & N.M. INC.	Oil	01175
42-329-30004	PARKER & PARSLEY DEVELOPMENT L.P	Oil	21237
42-329-30006	PED OIL CORPORATION	Oil	21265
42-329-30007	PED OIL CORPORATION	Oil	21297
42-329-30008	PED OIL CORPORATION	Oil	21297
42-329-30009	LEMON, HULEN H.	Oil
42-329-30010	PED OIL CORPORATION	Oil	21297
42-329-30011	LEMON, HULEN H.	Oil
42-329-30012	PED OIL CORPORATION	Oil	21297
42-329-30013	OXY USA WTP LP	Oil	15848
42-329-30014	PED OIL CORPORATION	Oil	21309
42-329-30015	TEXACO E & P INC.	Oil	40424
42-329-30016	L.C.S. PRODUCTION COMPANY	Oil	22549
42-329-30017	PIONEER NATURAL RES. USA, INC.	Oil	21373
42-329-30019	BLUESTEM ENERGY HOLDINGS, LLC	Oil	21356
42-329-30020	BLUESTEM ENERGY HOLDINGS, LLC	Oil	42307
42-329-30021	FORT WORTH PIPE & SUPPLY CO.	Oil
42-329-30022	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-30023	PENNZOIL UNITED INC.	Oil
42-329-30024	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-30025	COG OPERATING LLC	Oil	05637
42-329-30026	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21412
42-329-30027	EDMAR COMPANY, L.L.C.	Oil	21477
42-329-30028	BLUESTEM ENERGY HOLDINGS, LLC	Oil	21408
42-329-30029	EDMAR COMPANY, L.L.C.	Oil	21477
42-329-30030	BLUESTEM ENERGY HOLDINGS, LLC	Oil	21408
42-329-30031	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21412
42-329-30032	CONNALLY OIL CO., INC.	Oil
42-329-30033	COG OPERATING LLC	Oil
42-329-30034	DISCOVERY OPERATING, INC.	Oil
42-329-30035	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-30036	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-30038	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21412
42-329-30039	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-30040	BLUESTEM ENERGY HOLDINGS, LLC	Oil	21356
42-329-30041	BLUESTEM ENERGY HOLDINGS, LLC	Oil	42307
42-329-30042	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-30044	BLUESTEM ENERGY HOLDINGS, LLC	Oil	42307
42-329-30046	Texaco Inc.	Oil	23460
42-329-30047	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-30048	BLUESTEM ENERGY HOLDINGS, LLC	Oil	42307
42-329-30049	PIONEER NATURAL RES. USA, INC.	Oil
42-329-30050	PETROLEUM EXPL. & OPER. CORP.	Oil	21754
42-329-30051	HANSON OIL CORPORATION	Oil
42-329-30052	BLUESTEM ENERGY HOLDINGS, LLC	Oil
42-329-30053	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21860
42-329-30054	BLUESTEM ENERGY HOLDINGS, LLC	Oil	42307
42-329-30055	LNH OIL COMPANY	Oil
42-329-30056	LNH OIL COMPANY	Oil
42-329-30057	PARKER & PARSLEY PETROLEUM CO.	Oil	21713
42-329-30058	BLUESTEM ENERGY HOLDINGS, LLC	Oil	20694
42-329-30059	LANGHAM PETROLEUM EXPL. CORP.	Oil
42-329-30060	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21821
42-329-30061	LEMON, HULEN H.	Oil
42-329-30062	BETTIS, BOYLE & STOVALL	Oil	22619
42-329-30064	LP PARTNERS, INC.	Oil
42-329-30065	LP PARTNERS, INC.	Oil
42-329-30066	PED OIL CORPORATION	Oil	21858
42-329-30067	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21791
42-329-30068	MARALO, INC.	Oil	25300
42-329-30069	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21795
42-329-30070	PIONEER NATURAL RES. USA, INC.	Oil
42-329-30071	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21903
42-329-30072	LANGHAM PETROLEUM EXPL. CORP.	Oil	21879
42-329-30073	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21795
42-329-30074	LANGHAM PETROLEUM EXPL. CORP.	Oil
42-329-30075	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-30076	JM COX RESOURCES, L.P.	Oil	21939
42-329-30077	MLC CO., INC.	Oil
42-329-30078	JM COX RESOURCES, L.P.	Oil
42-329-30079	JM COX RESOURCES, L.P.	Oil
42-329-30080	BAXTER, MURPHY H.	Oil	21644
42-329-30081	PERMIAN RESOURCES, INC.	Oil
42-329-30082	DE3 OPERATING LLC	Oil
42-329-30083	DE3 OPERATING LLC	Oil
42-329-30084	PIONEER NATURAL RES. USA, INC.	Oil	22051
42-329-30085	PIONEER NATURAL RES. USA, INC.	Oil	22051
42-329-30086	PIONEER NATURAL RES. USA, INC.	Oil	22059
42-329-30087	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-30088	OXY USA WTP LP	Oil	15862
42-329-30089	DE3 OPERATING LLC	Oil
42-329-30090	PIONEER NATURAL RES. USA, INC.	Oil	22051
42-329-30091	PIONEER NATURAL RES. USA, INC.	Oil	22051
42-329-30092	PIONEER NATURAL RES. USA, INC.	Oil	22051
42-329-30093	DE3 OPERATING LLC	Oil	22167
42-329-30094	Hunt Oil Company	Oil	21071
42-329-30095	Hunt Oil Company	Oil
42-329-30096	PIONEER NATURAL RES. USA, INC.	Oil	33733
42-329-30097	PIONEER NATURAL RES. USA, INC.	Oil
42-329-30098	BROWN, TOM INC.	Oil	22174
42-329-30099	Cox, John L.	Oil	22210
42-329-30100	STEPHENS, AUTRY C.	Oil	22410
42-329-30101	PIONEER NATURAL RES. USA, INC.	Oil	22255
42-329-30105	Henry Petroleum Corp.	Oil
42-329-30106	PIONEER NATURAL RES. USA, INC.	Oil	22276
42-329-30107	PARSLEY ENERGY OPERATIONS, LLC	Oil	22291
42-329-30108	PIONEER NATURAL RES. USA, INC.	Oil	22168
42-329-30109	CHEVRON U. S. A. INC.	Oil	22343
42-329-30110	PIONEER NATURAL RES. USA, INC.	Oil	33777
42-329-30111	STEPHENS, AUTRY C.	Oil	22410
42-329-30112	DE3 OPERATING LLC	Oil	22167
42-329-30113	MERIDIAN OIL CORPORATION	Oil
42-329-30114	BROWN, TOM INC.	Oil	22174
42-329-30115	Henry Petroleum Corp.	Oil
42-329-30116	MERITAGE ENERGY COMPANY, LLC	Oil	22488
42-329-30118	COG OPERATING LLC	Oil	05637
42-329-30119	COG OPERATING LLC	Oil	05637
42-329-30120	COG OPERATING LLC	Oil	05637
42-329-30121	MERIDIAN OIL CORPORATION	Oil
42-329-30122	BROWN, TOM INC.	Oil	22414
42-329-30123	BROWN, TOM INC.	Oil
42-329-30124	PIONEER NATURAL RES. USA, INC.	Oil	22421
42-329-30125	PIONEER NATURAL RES. USA, INC.	Oil	22421
42-329-30126	PIONEER NATURAL RES. USA, INC.	Oil	22421
42-329-30127	DEL MAR PETROLEUM, INC.	Oil
42-329-30128	DE3 OPERATING LLC	Oil	22347
42-329-30129	BROWN, TOM INC.	Oil	22174
42-329-30130	ENSOUTH OPERATING INC	Oil
42-329-30131	MERIDIAN OIL CORPORATION	Oil
42-329-30132	MERIDIAN OIL CORPORATION	Oil
42-329-30133	COG OPERATING LLC	Oil	05637
42-329-30134	Henry Petroleum Corp.	Oil
42-329-30135	COG OPERATING LLC	Oil
42-329-30136	PIONEER NATURAL RES. USA, INC.	Oil	22059
42-329-30137	MERIDIAN OIL CORPORATION	Oil
42-329-30138	MERIDIAN OIL CORPORATION	Oil
42-329-30139	PIONEER NATURAL RES. USA, INC.	Oil	22408
42-329-30141	PIONEER NATURAL RES. USA, INC.	Oil	22415
42-329-30142	DE3 OPERATING LLC	Oil	22416
42-329-30143	DE3 OPERATING LLC	Oil	22347
42-329-30144	DE3 OPERATING LLC	Oil	22066
42-329-30145	PIONEER NATURAL RES. USA, INC.	Oil	22051
42-329-30146	PIONEER NATURAL RES. USA, INC.	Oil	22051
42-329-30147	Apache Corporation	Oil	22441
42-329-30148	PARSLEY ENERGY OPERATIONS, LLC	Oil	22456
42-329-30149	SPUR ENERGY	Oil	22565
42-329-30150	B.L.G. PETROLEUM, INC.	Oil	31057
42-329-30151	DE3 OPERATING LLC	Oil	22522
42-329-30152	JM COX RESOURCES, L.P.	Oil	22210
42-329-30153	MOBIL PRODUCING TX. & N.M. INC.	Gas	053279
42-329-30154	ENDEAVOR ENERGY RESOURCES L.P.	Oil	22576
42-329-30155	BROWN, TOM INC.	Oil	22501
42-329-30156	DE3 OPERATING LLC	Oil	22513
42-329-30157	DE3 OPERATING LLC	Oil	22513
42-329-30158	STEPHENS, AUTRY C.	Oil	22537
42-329-30159	PARKER & PARSLEY	Oil
42-329-30160	PIONEER NATURAL RES. USA, INC.	Oil
42-329-30161	PIONEER NATURAL RES. USA, INC.	Oil	22551
42-329-30163	Henry Petroleum Corp.	Oil
42-329-30165	ENDEAVOR ENERGY RESOURCES L.P.	Oil	22533
42-329-30166	Apache Corporation	Oil	35166
42-329-30167	BETTIS, BOYLE & STOVALL	Oil	22594
42-329-30168	Legacy Reserves Operating LP	Oil	22557
42-329-30169	Legacy Reserves Operating LP	Oil	28593
42-329-30170	DE3 OPERATING LLC	Oil
42-329-30171	Henry Petroleum Corp.	Oil
42-329-30172	Santa Fe Energy Resources, Inc.	Oil
42-329-30173	SHENANDOAH OIL CORP.	Oil
42-329-30174	Cox, John L.	Oil
42-329-30175	PIONEER NATURAL RES. USA, INC.	Oil	22584
42-329-30176	BETTIS, BOYLE & STOVALL	Oil	22657
42-329-30177	ENDEAVOR ENERGY RESOURCES L.P.	Oil	22605
42-329-30178	Apache Corporation	Oil	22441
42-329-30180
42-329-30181	EXXON CORP.	Oil	15628
42-329-30182	PARSLEY ENERGY OPERATIONS, LLC	Oil	22629
42-329-30183	PIONEER NATURAL RES. USA, INC.	Oil	22635
42-329-30184	DE3 OPERATING LLC	Oil	22522
42-329-30185	EXXON CORP.	Oil	21439
42-329-30186	ENDEAVOR ENERGY RESOURCES L.P.	Oil	22649
42-329-30187	PED OIL CORPORATION	Oil	22697
42-329-30188	PED OIL CORPORATION	Oil	22755
42-329-30189	DE3 OPERATING LLC	Oil	22167
42-329-30190	PIONEER NATURAL RES. USA, INC.	Oil	22665
42-329-30191	PIONEER NATURAL RES. USA, INC.	Oil	22677
42-329-30192	Parker & Parsley Development Co.	Oil	22667
42-329-30193	Apache Corporation	Oil	22441
42-329-30194	DEVON ENERGY CORPORATION(NEVADA)	Oil	22855
42-329-30195	ADOBE RESOURCES CORPORATION	Oil	22662
42-329-30196	PIONEER NATURAL RES. USA, INC.	Oil	22818
42-329-30197	Parker & Parsley Development Co.	Oil	22667
42-329-30198	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-30199	ADOBE OIL & GAS CORP.	Oil
42-329-30200	PIONEER NATURAL RES. USA, INC.	Oil	22701
42-329-30201	PIONEER NATURAL RES. USA, INC.	Oil
42-329-30204	Henry Petroleum Corp.	Oil	22931
42-329-30205	PIONEER NATURAL RES. USA, INC.	Oil
42-329-30206	Santa Fe Energy Resources, Inc.	Oil	22552
42-329-30207	MERIT ENERGY COMPANY	Oil	22699
42-329-30208	PIONEER NATURAL RES. USA, INC.	Oil	22752
42-329-30209	PETROLEUM EXPL. & OPER. CORP.	Oil
42-329-30210	PIONEER NATURAL RES. USA, INC.	Oil
42-329-30213	PED OIL CORPORATION	Oil
42-329-30214	STEPHENS, AUTRY C.	Oil	22791
42-329-30215	STEPHENS, AUTRY C.	Oil	22791
42-329-30218	ADOBE RESOURCES CORPORATION	Oil	22662
42-329-30219	MOMENTUM ENERGY, LLC	Oil	22768
42-329-30220	Cox, John L.	Oil
42-329-30221	PIONEER NATURAL RES. USA, INC.	Oil	39990
42-329-30223	DE3 OPERATING LLC	Oil	22825
42-329-30224	DE3 OPERATING LLC	Oil	22347
42-329-30225	PIONEER NATURAL RES. USA, INC.	Oil	22843
42-329-30226	DEVON ENERGY CORPORATION(NEVADA)	Oil
42-329-30227	Houston Oil & Minerals Corp.	Oil	22807
42-329-30228	PIONEER NATURAL RES. USA, INC.	Oil	22584
42-329-30229	PIONEER NATURAL RES. USA, INC.	Oil	22843
42-329-30230	PIONEER NATURAL RES. USA, INC.	Oil	22843
42-329-30231	PARKER & PARSLEY DEVELOPMENT L.P	Oil	22798
42-329-30232	BROWN, TOM INC.	Oil	22895
42-329-30233	BROWN, TOM INC.	Oil
42-329-30234	PIONEER NATURAL RES. USA, INC.	Oil
42-329-30235	Parker & Parsley Development Co.	Oil
42-329-30236	Parker & Parsley Development Co.	Oil	22913
42-329-30237	DE3 OPERATING LLC	Oil	22877
42-329-30238	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-30239	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-30240	Parker & Parsley Development Co.	Oil	22912
42-329-30241	PARSLEY ENERGY OPERATIONS, LLC	Oil	22867
42-329-30242	BROWN, TOM INC.	Oil	22895
42-329-30243	BROWN, TOM INC.	Oil
42-329-30244	DE3 OPERATING LLC	Oil	22347
42-329-30245	PARKER & PARSLEY OPERATING LLC	Oil	22932
42-329-30246	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-30247	MID-STATES OPERATING COMPANY	Oil
42-329-30248	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-30249	Cox, John L.	Oil
42-329-30250	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-30252	Parker & Parsley Development Co.	Oil
42-329-30253	DE3 OPERATING LLC	Oil	22825
42-329-30254	BROWN, TOM INC.	Oil	23407
42-329-30255	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-30256	PARSLEY ENERGY OPERATIONS, LLC	Oil	23004
42-329-30257	PIONEER NATURAL RES. USA, INC.	Oil	31128
42-329-30258	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-30259	Parker & Parsley Development Co.	Oil	23052
42-329-30260	Parker & Parsley Development Co.	Oil
42-329-30261	PIONEER NATURAL RES. USA, INC.	Oil	22584
42-329-30262	PARSLEY ENERGY OPERATIONS, LLC	Oil	33392
42-329-30263	PIONEER NATURAL RES. USA, INC.	Oil
42-329-30264	PIONEER NATURAL RES. USA, INC.	Oil	23085
42-329-30265	KAISER-FRANCIS OIL COMPANY	Oil
42-329-30266	Coquina Oil Corporation	Oil	24352
42-329-30267	PIONEER NATURAL RES. USA, INC.	Oil	23152
42-329-30268	PIONEER NATURAL RES. USA, INC.	Oil	23151
42-329-30269	BROWN, TOM INC.	Oil	23317
42-329-30270	BROWN, TOM INC.	Oil	23150
42-329-30271	OGA OPERATING L.L.C.	Oil	23279
42-329-30272	Cox, John L.	Oil
42-329-30273	PARKER & PARSLEY DEVELOPMENT L.P	Oil	23168
42-329-30274	PARKER & PARSLEY DEVELOPMENT L.P	Oil
42-329-30275	PARKER & PARSLEY OPERATING LLC	Oil	23157
42-329-30276	ENDEAVOR ENERGY RESOURCES L.P.	Oil	31725
42-329-30278	Cox, John L.	Oil
42-329-30279	Parker & Parsley Development Co.	Oil	23204
42-329-30280	ARCH PETROLEUM INC.	Oil
42-329-30281	Cox, John L.	Oil
42-329-30282	PIONEER NATURAL RES. USA, INC.	Oil
42-329-30283	Cox, John L.	Oil
42-329-30286	NORTHSTAR OPERATING COMPANY	Oil	23248
42-329-30287	PARSLEY ENERGY OPERATIONS, LLC	Oil	23245
42-329-30288	Parker & Parsley Development Co.	Oil	23310
42-329-30289	PIONEER NATURAL RES. USA, INC.	Oil	23359
42-329-30290	BROWN, TOM INC.	Oil	23429
42-329-30291	Apache Corporation	Oil	01186
42-329-30293	Apache Corporation	Oil	01186
42-329-30294	PARSLEY ENERGY OPERATIONS, LLC	Oil	23364
42-329-30295	DE3 OPERATING LLC	Oil	23306
42-329-30296	DE3 OPERATING LLC	Oil	23306
42-329-30297	PARKER & PARSLEY PETROLEUM CO.	Oil	31585
42-329-30298	PIONEER NATURAL RES. USA, INC.	Oil
42-329-30299	Cox, John L.	Oil
42-329-30300	Parker & Parsley Development Co.	Oil	23342
42-329-30301	Henry Petroleum Corp.	Oil
42-329-30303	Cox, John L.	Oil
42-329-30304	Parker & Parsley Development Co.	Oil
42-329-30305	BROWN, TOM INC.	Oil	23428
42-329-30306	HENDON EXPLORATION, INC.	Oil
42-329-30307	EOTT ENERGY OPERATING L. P.	Oil	23409
42-329-30309	PARKER & PARSLEY PETROLEUM CO.	Oil	31481
42-329-30310	Henry Petroleum Corp.	Oil
42-329-30311	MIDKIFF, JOHN	Oil	24753
42-329-30312	Cox, John L.	Oil
42-329-30313	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-30314	Cox, John L.	Oil
42-329-30315	PARKER & PARSLEY OPERATING LLC	Oil	23427
42-329-30316	Apache Corporation	Oil	22441
42-329-30317	DE3 OPERATING LLC	Oil	23393
42-329-30318	MLC CO., INC.	Oil
42-329-30319	Parker & Parsley Development Co.	Oil	22919
42-329-30320	DIAMOND CHEMICALS COMPANY	Oil
42-329-30321	Parker & Parsley Development Co.	Oil	23446
42-329-30322	BASIN CHEMICAL CO., INC.	Oil
42-329-30323	PIONEER NATURAL RES. USA, INC.	Oil	23458
42-329-30324	PIONEER NATURAL RES. USA, INC.	Oil	23524
42-329-30325	DE3 OPERATING LLC	Oil	23422
42-329-30326	PED OIL CORPORATION	Oil	23494
42-329-30327	Cox, John L.	Oil
42-329-30328	PIONEER NATURAL RES. USA, INC.	Oil	23359
42-329-30329	Cox, John L.	Oil
42-329-30331	PED OIL CORPORATION	Oil
42-329-30332	MLC CO., INC.	Oil
42-329-30333	PED OIL CORPORATION	Oil	23494
42-329-30334	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23520
42-329-30335	Henry Petroleum Corp.	Oil	23591
42-329-30336	ENERTEX, INC.	Oil	33795
42-329-30337	ADOBE RESOURCES CORPORATION	Oil
42-329-30338	TEXAS INVESTMENTS	Oil	23578
42-329-30339	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23522
42-329-30340	ENDEAVOR ENERGY RESOURCES L.P.	Oil
42-329-30341	MOBIL PRODUCING TX. & N.M. INC.	Oil	30122
42-329-30343	PIONEER NATURAL RES. USA, INC.	Oil
42-329-30344	ODEN, H. D., INC.	Oil	24874
42-329-30345	Henry Petroleum Corp.	Oil
42-329-30346	Parker & Parsley Development Co.	Oil
42-329-30347	Parker & Parsley Development Co.	Oil	23754
42-329-30348	Cox, John L.	Oil	23635
42-329-30349	PIONEER NATURAL RES. USA, INC.	Oil
42-329-30350	THOMAS EXPLORATION & DEVEL., INC	Oil	08563
42-329-30351	Apache Corporation	Oil	35166
42-329-30352	Parker & Parsley Development Co.	Oil	23718
42-329-30353	Parker & Parsley Development Co.	Oil
42-329-30354	Parker & Parsley Development Co.	Oil	23718
42-329-30357
42-329-30358	DIAMONDBACK E&P LLC	Oil	23889
42-329-30359	PARSLEY ENERGY OPERATIONS, LLC	Oil	24656
42-329-30360	PIONEER NATURAL RES. USA, INC.	Oil	23633
42-329-30361	Cox, John L.	Oil	23635
42-329-30362	PIONEER NATURAL RES. USA, INC.	Oil	23524
42-329-30363	DE3 OPERATING LLC	Oil	25489
42-329-30364	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23782
42-329-30365	PARKER & PARSLEY DEVELOPMENT L.P	Oil	23795
42-329-30366	PIONEER NATURAL RES. USA, INC.	Oil	23818
42-329-30367	DE3 OPERATING LLC	Oil	23851
42-329-30368	SMITH BROTHERS OIL & GAS, INC.	Oil	23935
42-329-30369	CHEVRON U. S. A. INC.	Oil	23970
42-329-30370	XTO ENERGY INC.	Oil	22040
42-329-30371	ARCO OIL & GAS CO.	Oil	26588
42-329-30372	DIAMONDBACK E&P LLC	Oil	23912
42-329-30373	PARKER & PARSLEY DEVELOPMENT L.P	Oil	23857
42-329-30374	PLAINS PETROLEUM OPERATING CO.	Oil	23960
42-329-30375	SMITH BROTHERS OIL & GAS, INC.	Oil	24012
42-329-30376	PIONEER NATURAL RES. USA, INC.	Oil	23961
42-329-30377	PARKER & PARSLEY DEVELOPMENT L.P	Oil	23857
42-329-30378	PARSLEY ENERGY OPERATIONS, LLC	Oil	23904
42-329-30379	SMITH BROTHERS OIL & GAS, INC.	Oil	23935
42-329-30380	MLC CO., INC.	Oil
42-329-30382	BUTLER, KEVIN O.	Oil	24013
42-329-30384	PIONEER NATURAL RES. USA, INC.	Oil	23924
42-329-30385	PIONEER NATURAL RES. USA, INC.	Oil	23961
42-329-30386	BROWN, TOM INC.	Oil	23429
42-329-30387	BROWN, TOM INC.	Oil	23429
42-329-30388	BROWN, TOM INC.	Oil	23429
42-329-30389	PP&E, INC.	Oil
42-329-30390	PP&E, INC.	Oil
42-329-30391	JM COX RESOURCES, L.P.	Oil	23984
42-329-30392	PIONEER NATURAL RES. USA, INC.	Oil	24030
42-329-30393
42-329-30395	JM COX RESOURCES, L.P.	Oil	23984
42-329-30396	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34877
42-329-30398	PARKER & PARSLEY, INC.	Oil
42-329-30400	DIAMONDBACK E&P LLC	Oil
42-329-30401	MOBIL PRODUCING TX. & N.M. INC.	Oil
42-329-30402	PIONEER NATURAL RES. USA, INC.	Oil	24127
42-329-30403	PIONEER NATURAL RES. USA, INC.	Oil	24127
42-329-30404	DIAMONDBACK E&P LLC	Oil	24410
42-329-30405	Parker & Parsley Development Co.	Oil	24165
42-329-30406	MURPHY OIL CORPORATION	Oil	25017
42-329-30407	PARSLEY ENERGY OPERATIONS, LLC	Oil	24204
42-329-30408	MOMENTUM ENERGY, LLC	Oil	24235
42-329-30409	PARKER & PARSLEY OPERATING LLC	Oil	24195
42-329-30410	FLOYD, TIMBER INC.	Oil	24479
42-329-30411	COG OPERATING LLC	Oil	01166
42-329-30412	MOMENTUM ENERGY, LLC	Oil	24235
42-329-30413	Parker & Parsley Development Co.	Oil	24223
42-329-30414	MIDLAND SWD CO.	Oil	25488
42-329-30415	OGA OPERATING L.L.C.	Oil	24270
42-329-30416	DE3 OPERATING LLC	Oil	24312
42-329-30417	Parker & Parsley Development Co.	Oil	24304
42-329-30418	Parker & Parsley Development Co.	Oil	24394
42-329-30419	Parker & Parsley Development Co.	Oil	24394
42-329-30420	MIDLAND SWD CO.	Oil	25488
42-329-30421	MERIT ENERGY COMPANY	Oil	01166
42-329-30422	PRASAD, HARI PRODUCTION CO.	Oil	24555
42-329-30427	PIONEER NATURAL RES. USA, INC.	Oil	24386
42-329-30428	COG OPERATING LLC	Oil	01166
42-329-30429	PIONEER NATURAL RES. USA, INC.	Oil	24852
42-329-30430	PIONEER NATURAL RES. USA, INC.	Oil	24703
42-329-30431	5-POINT-SWD	Oil	24554
42-329-30433
42-329-30434	PARKER & PARSLEY DEVELOPMENT L.P	Oil	24560
42-329-30436	EXXON CORP.	Oil	28422
42-329-30768	JM COX RESOURCES, L.P.	Oil	40384
42-329-30769	NORTHSTAR OPERATING COMPANY	Oil	24682
42-329-30770	TAMARACK PETROLEUM COMPANY, INC.	Oil	24705
42-329-30771	CAMBRIAN MANAGEMENT, LTD.	Oil	24860
42-329-30772	NORTHSTAR OPERATING COMPANY	Oil	24776
42-329-30773	Parker & Parsley Development Co.	Oil	33717
42-329-30774	ENDEAVOR ENERGY RESOURCES L.P.	Oil	24723
42-329-30775	FLOYD, TIMBER INC.	Oil	24924
42-329-30776	TAMARACK PETROLEUM COMPANY, INC.	Oil	24868
42-329-30777	OXY USA INC.	Oil	34635
42-329-30778	HALVEY ENERGY CO.	Oil	24909
42-329-30779	TAMARACK PETROLEUM COMPANY, INC.	Oil	24881
42-329-30780	JM COX RESOURCES, L.P.	Oil	24859
42-329-30781	WILSON, WILLIAM B.	Oil
42-329-30782	TAMARACK PETROLEUM COMPANY, INC.	Oil	24923
42-329-30783	Davis Oil Company
42-329-30784	TAMARACK PETROLEUM COMPANY, INC.	Oil	24918
42-329-30785	COLA PETROLEUM, INC.	Oil	07397
42-329-30786	TAMARACK PETROLEUM COMPANY, INC.	Oil	24919
42-329-30787	TAMARACK PETROLEUM COMPANY, INC.	Oil	24930
42-329-30788	JM COX RESOURCES, L.P.	Oil	40396
42-329-30789	Apache Corporation	Oil	01186
42-329-30790	JM COX RESOURCES, L.P.	Oil	24992
42-329-30791	Texaco Inc.	Oil	29992
42-329-30792	PIONEER NATURAL RES. USA, INC.	Oil	23524
42-329-30793	OXY USA INC.	Gas	283591
42-329-30794	PARKER & PARSLEY, INC.	Oil	25015
42-329-30795	TAMARACK PETROLEUM COMPANY, INC.
42-329-30796	TAMARACK PETROLEUM COMPANY, INC.
42-329-30797	Parker & Parsley Development Co.	Oil	25162
42-329-30798	TRINITY ENVIRO SWD I, L.L.C.	Oil	02683
42-329-30799	OGA OPERATING L.L.C.	Oil	25053
42-329-30800	HALVEY ENERGY CO.	Oil	25211
42-329-30801	JM COX RESOURCES, L.P.	Oil	24949
42-329-30802	Cox, John L.
42-329-30803	PARSLEY ENERGY OPERATIONS, LLC	Oil	25111
42-329-30804	OXY USA INC.	Gas	080922
42-329-30805	CHEVRON U. S. A. INC.	Gas	239230
42-329-30806	MCENA INC.	Oil	07642
42-329-30807	Apache Corporation	Gas	081170
42-329-30808	DE3 OPERATING LLC	Oil	25507
42-329-30809	PARSLEY ENERGY OPERATIONS, LLC	Oil	25154
42-329-30810	MOMENTUM ENERGY CORPORATION	Oil	25163
42-329-30811	OXY USA WTP LP	Oil	15848
42-329-30812	STEPHENS, AUTRY C.	Oil	25293
42-329-30813	ENDEAVOR ENERGY RESOURCES L.P.	Oil	25294
42-329-30814	MWJ PRODUCING COMPANY	Oil	25295
42-329-30815	PARSLEY ENERGY OPERATIONS, LLC	Oil	25259
42-329-30816	PARSLEY ENERGY OPERATIONS, LLC	Oil	25267
42-329-30817	CROWNQUEST OPERATING, LLC	Oil	25586
42-329-30818	PRASAD, HARI PRODUCTION CO.	Oil	25412
42-329-30819
42-329-30820	PARKER & PARSLEY DEVELOPMENT L.P	Oil	07323
42-329-30822	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-30823	CHEVRON U. S. A. INC.	Oil	25505
42-329-30824	MOBIL PRODUCING TX. & N.M. INC.	Oil	06462
42-329-30825	DE3 OPERATING LLC	Oil	25402
42-329-30826	PARSLEY ENERGY OPERATIONS, LLC	Oil	25420
42-329-30827	R K PETROLEUM CORP.
42-329-30828	SNOW OIL & GAS INC.	Oil	25627
42-329-30829	CROWNQUEST OPERATING, LLC	Oil	25586
42-329-30830	Texaco Inc.
42-329-30832	DE3 OPERATING LLC	Oil	25486
42-329-30833	PIONEER NATURAL RES. USA, INC.	Oil	25570
42-329-30834	Apache Corporation	Oil	25590
42-329-30835	Apache Corporation	Oil	25590
42-329-30836	PIONEER NATURAL RES. USA, INC.	Oil	25554
42-329-30837	Parker & Parsley Development Co.	Oil	25562
42-329-30838	PARSLEY ENERGY OPERATIONS, LLC	Oil	25528
42-329-30839	PARKER & PARSLEY ACQ. GROUP LLC	Oil	25499
42-329-30840	Cox, John L.	Oil
42-329-30841	BROWN, TOM INC.	Oil	25669
42-329-30842	TAMARACK PETROLEUM COMPANY, INC.	Oil
42-329-30843	JM COX RESOURCES, L.P.	Oil	40399
42-329-30844	JM COX RESOURCES, L.P.	Oil	40399
42-329-30845	DE3 OPERATING LLC	Oil	25583
42-329-30846	Apache Corporation	Oil	25838
42-329-30847	Apache Corporation	Oil	25871
42-329-30848	PETROHAWK OPERATING COMPANY	Oil	25696
42-329-30849	ENDEAVOR ENERGY RESOURCES L.P.	Oil	25913
42-329-30850	PARSLEY ENERGY OPERATIONS, LLC	Oil	25937
42-329-30851	DE3 OPERATING LLC	Oil	25868
42-329-30852	DE3 OPERATING LLC	Oil	25868
42-329-30853	DE3 OPERATING LLC	Oil	25868
42-329-30854	DE3 OPERATING LLC	Oil
42-329-30855	ENDEAVOR ENERGY RESOURCES L.P.	Oil	25867
42-329-30856	ENDEAVOR ENERGY RESOURCES L.P.	Oil	25867
42-329-30857	Apache Corporation	Oil	25979
42-329-30858	PIONEER NATURAL RES. USA, INC.	Oil	33716
42-329-30859	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-30860	TAMARACK PETROLEUM COMPANY, INC.	Oil
42-329-30861	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-30862	EDMAR COMPANY, L.L.C.	Oil	25863
42-329-30863	LACY & BYRD, INC.	Oil	32333
42-329-30864	DE3 OPERATING LLC	Oil	25700
42-329-30865	Apache Corporation	Oil	25814
42-329-30866	Parker & Parsley Development Co.	Oil	31399
42-329-30867	PIONEER NATURAL RES. USA, INC.	Oil	23224
42-329-30868
42-329-30869	DE3 OPERATING LLC	Oil	25749
42-329-30870	CHEVRON U. S. A. INC.	Oil	25800
42-329-30871	PARKER & PARSLEY, INC.	Oil	25719
42-329-30872	DE3 OPERATING LLC	Oil	25782
42-329-30873	KASPAR, A. G.
42-329-30874	PURVIS OPERATING CO.	Oil	26809
42-329-30875	PURVIS OPERATING CO.	Oil	26809
42-329-30876	PURVIS OPERATING CO.	Oil	26241
42-329-30877
42-329-30879	CHEVRON U. S. A. INC.	Oil	25505
42-329-30880	TAMARACK PETROLEUM COMPANY, INC.	Oil
42-329-30881	BRAZOS PETROLEUM CO.	Oil
42-329-30882	PIONEER NATURAL RES. USA, INC.	Oil
42-329-30883	PARSLEY ENERGY OPERATIONS, LLC	Oil	25862
42-329-30884	TAMARACK PETROLEUM COMPANY, INC.	Oil	25941
42-329-30885	PARSLEY ENERGY OPERATIONS, LLC	Oil	25885
42-329-30886	JM COX RESOURCES, L.P.	Oil	40396
42-329-30887	PIONEER NATURAL RES. USA, INC.	Oil	26022
42-329-30888	PIONEER NATURAL RES. USA, INC.	Oil
42-329-30889	CHEVRON U. S. A. INC.	Oil	42250
42-329-30890	PARKER & PARSLEY DEVELOPMENT L.P	Oil	25918
42-329-30891	BLUESTEM ENERGY HOLDINGS, LLC	Oil	42307
42-329-30892	BLUESTEM ENERGY HOLDINGS, LLC	Oil	21356
42-329-30893	NORTHSTAR OPERATING COMPANY	Oil	25954
42-329-30894	TAMARACK PETROLEUM COMPANY, INC.	Oil	26040
42-329-30895	PPC OPERATING COMPANY LLC	Oil	25974
42-329-30896	PPC OPERATING COMPANY LLC	Oil	25974
42-329-30897	BLUESTEM ENERGY HOLDINGS, LLC	Oil	42307
42-329-30898	PIONEER NATURAL RES. USA, INC.	Oil	26188
42-329-30899	PIONEER NATURAL RES. USA, INC.	Oil	26188
42-329-30900	PARKER & PARSLEY DEVELOPMENT L.P	Oil	08664
42-329-30901	PARKER & PARSLEY DEVELOPMENT L.P	Oil	15400
42-329-30902	PPC OPERATING COMPANY LLC	Oil	25974
42-329-30903	BRAZOS PETROLEUM CO.	Oil
42-329-30904	DE3 OPERATING LLC	Oil	25987
42-329-30905	PARSLEY ENERGY OPERATIONS, LLC	Oil	25988
42-329-30906	CHEVRON U. S. A. INC.	Oil	25800
42-329-30907	MOMENTUM ENERGY CORPORATION	Oil	26059
42-329-30908	PIONEER NATURAL RES. USA, INC.	Oil	26086
42-329-30909	Cox, John L.	Oil
42-329-30910	MOMENTUM OPERATING CO., INC.	Oil	25017
42-329-30911	PARKER & PARSLEY DEVELOPMENT L.P	Oil	07359
42-329-30912	MERIT ENERGY COMPANY	Oil	08469
42-329-30913	PIONEER NATURAL RES. USA, INC.	Oil	26060
42-329-30914	PLAINS PETROLEUM OPERATING CO.	Oil	26327
42-329-30915	STEPHENS, AUTRY C.	Oil	26303
42-329-30916	PARSLEY ENERGY OPERATIONS, LLC	Oil	26107
42-329-30917	PARSLEY ENERGY OPERATIONS, LLC	Oil	26108
42-329-30918	PARKER & PARSLEY DEVELOPMENT L.P	Oil	26081
42-329-30919	PARSLEY ENERGY OPERATIONS, LLC	Oil	26083
42-329-30920	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-30921	Cox, John L.	Oil
42-329-30922	Texas American Oil Corp.	Oil	27186
42-329-30923	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-30924	ENDEAVOR ENERGY RESOURCES L.P.	Oil	26349
42-329-30925	ENDEAVOR ENERGY RESOURCES L.P.	Oil	26349
42-329-30926	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21412
42-329-30927	Texaco Inc.	Oil	35794
42-329-30928	PARKER & PARSLEY OPERATING LLC
42-329-30929	PARKER & PARSLEY OPERATING LLC	Oil	26153
42-329-30930	PARSLEY ENERGY OPERATIONS, LLC	Oil	36086
42-329-30931	PARKER & PARSLEY ACQ. GROUP LLC	Oil	26271
42-329-30932	DE3 OPERATING LLC	Oil	26626
42-329-30933	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-30934	PARSLEY ENERGY OPERATIONS, LLC	Oil	26284
42-329-30935	DE3 OPERATING LLC	Oil	26272
42-329-30936	PARISH, JOHN R.
42-329-30937	DE3 OPERATING LLC	Oil	26304
42-329-30938	Amerada Hess Corporation	Oil	26726
42-329-30939	CHEVRON U. S. A. INC.	Gas	239233
42-329-30940	RELENTLESS PERMIAN OPERATING LLC	Oil	26458
42-329-30941	RELENTLESS PERMIAN OPERATING LLC	Oil	26458
42-329-30942	TAMARACK PETROLEUM COMPANY, INC.	Oil	26409
42-329-30943	BLUESTEM ENERGY HOLDINGS, LLC	Oil	42307
42-329-30944	BLUESTEM ENERGY HOLDINGS, LLC	Oil	21500
42-329-30945	Parker & Parsley Development Co.	Oil	26380
42-329-30946	PARSLEY ENERGY OPERATIONS, LLC	Oil	26331
42-329-30947	PPC OPERATING COMPANY LLC	Oil	25974
42-329-30948	PPC OPERATING COMPANY LLC	Oil	25974
42-329-30949	PPC OPERATING COMPANY LLC	Oil	42307
42-329-30950	BLUESTEM ENERGY HOLDINGS, LLC	Oil	21500
42-329-30951	PARKER & PARSLEY PETROLEUM CO.	Oil
42-329-30952	PARKER & PARSLEY, INC.	Oil	26605
42-329-30953	PRIME OPERATING COMPANY	Oil	26495
42-329-30954	PIONEER NATURAL RES. USA, INC.	Oil	26381
42-329-30955	PIONEER NATURAL RES. USA, INC.	Oil	26086
42-329-30956	MERIT ENERGY COMPANY	Oil	08949
42-329-30957	JM COX RESOURCES, L.P.	Oil	26601
42-329-30958	CHEVRON U. S. A. INC.	Oil	26365
42-329-30959	WILLIAMSON, RALPH E.	Oil	26370
42-329-30960	PARKER & PARSLEY OPERATING LLC	Oil	26461
42-329-30961	PARKER & PARSLEY, INC.
42-329-30962	PARKER & PARSLEY, INC.
42-329-30963	PARKER & PARSLEY DEVELOPMENT L.P	Oil	26417
42-329-30964	BRAZOS PETROLEUM CO.	Oil
42-329-30965	PIONEER NATURAL RES. USA, INC.	Oil	26520
42-329-30966	PIONEER NATURAL RES. USA, INC.	Oil	26381
42-329-30967	PURVIS OPERATING CO.	Oil	26835
42-329-30968	PARKER & PARSLEY PETROLEUM CO.	Oil	29960
42-329-30969	Parker & Parsley Development Co.	Oil	27301
42-329-30970	Texaco Inc.	Oil	36147
42-329-30971	PARSLEY ENERGY OPERATIONS, LLC	Oil	26592
42-329-30972	PARKER & PARSLEY OPERATING LLC	Oil	26410
42-329-30973	DE3 OPERATING LLC	Oil	26477
42-329-30974	PARSLEY ENERGY OPERATIONS, LLC	Oil	26534
42-329-30975	PIONEER NATURAL RES. USA, INC.	Oil	26441
42-329-30976	PARSLEY ENERGY OPERATIONS, LLC	Oil	26469
42-329-30977	CHEVRON U. S. A. INC.	Oil	26734
42-329-30978	PARKER & PARSLEY, INC.	Oil	26477
42-329-30979	PIONEER NATURAL RES. USA, INC.	Oil	36398
42-329-30980	DE3 OPERATING LLC	Oil	21990
42-329-30981	VOGEL, A. J., INC.
42-329-30982	SOHIO PETROLEUM CO.
42-329-30983	GULF ENERGY PRODUCING COMPANY
42-329-30984	Texaco Inc.
42-329-30985	Apache Corporation	Oil	06310
42-329-30986	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-30987	TAMARACK PETROLEUM COMPANY, INC.	Oil	27174
42-329-30988	TAMARACK PETROLEUM COMPANY, INC.	Oil	26721
42-329-30989	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-30990	SUN TEXAS COMPANY
42-329-30991	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-30992	WILLIAMSON, RALPH E.
42-329-30993	MIDKIFF, HUNTER
42-329-30994	HILLIN PROD. CO.	Oil
42-329-30996	PRIME OPERATING COMPANY	Oil	29758
42-329-30997	MOMENTUM ENERGY CORPORATION	Oil	26666
42-329-30998	CHEVRON U. S. A. INC.	Oil	27108
42-329-30999	CHEVRON U. S. A. INC.	Oil	26365
42-329-31000	ACME ENERGY SERVICES, INC.	Oil	36785
42-329-31001	INDIAN WELLS OIL COMPANY
42-329-31002	STEPHENS, AUTRY C.	Oil	26814
42-329-31003	ALLEDER INC.	Oil	26904
42-329-31004	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-31005	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-31006	Texas Crude Oil Co.
42-329-31007	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-31008	PARSLEY ENERGY OPERATIONS, LLC	Oil	26704
42-329-31009	JM COX RESOURCES, L.P.	Oil	40398
42-329-31010
42-329-31011	ARCO OIL & GAS CO.
42-329-31012	PIONEER NATURAL RES. USA, INC.	Oil	26893
42-329-31013	KELLOIL, INC.	Oil
42-329-31014	PIONEER NATURAL RES. USA, INC.	Oil	26877
42-329-31015	PIONEER NATURAL RES. USA, INC.	Oil	26810
42-329-31016	PARKER & PARSLEY DEVELOPMENT L.P	Oil	26947
42-329-31017	PIONEER NATURAL RES. USA, INC.	Oil	26805
42-329-31018	PARKER & PARSLEY, INC.
42-329-31020	SMITH PIPE OF ABILENE	Oil	09111
42-329-31021	PIONEER NATURAL RES. USA, INC.	Oil	26876
42-329-31022	PIONEER NATURAL RES. USA, INC.	Oil	26805
42-329-31023
42-329-31024	Dorchester Exploration, Inc.
42-329-31025	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21513
42-329-31026	PIONEER NATURAL RES. USA, INC.	Oil	26918
42-329-31027	INDIAN WELLS OIL COMPANY	Oil
42-329-31028	Apache Corporation	Oil	01186
42-329-31029	PARKER & PARSLEY, INC.	Oil	27657
42-329-31030	PIONEER NATURAL RES. USA, INC.	Oil	26805
42-329-31031	INDIAN WELLS OIL COMPANY
42-329-31032	ENDEAVOR ENERGY RESOURCES L.P.	Oil	27471
42-329-31033	PIONEER NATURAL RES. USA, INC.	Oil	27051
42-329-31034	ENDEAVOR ENERGY RESOURCES L.P.	Oil	27285
42-329-31035	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-31036	Apache Corporation	Oil	27257
42-329-31038	PIONEER NATURAL RES. USA, INC.	Oil	27039
42-329-31039	PIONEER NATURAL RES. USA, INC.	Oil	27079
42-329-31040
42-329-31043	PIONEER NATURAL RES. USA, INC.	Oil	27038
42-329-31044	PIONEER NATURAL RES. USA, INC.	Oil	27079
42-329-31045	PIONEER NATURAL RES. USA, INC.	Oil	27079
42-329-31046	BRAZOS PETROLEUM CO.	Oil
42-329-31047	TEXACO E & P INC.	Oil	34106
42-329-31048	DISCOVERY OPERATING, INC.	Oil	27235
42-329-31049	DISCOVERY OPERATING, INC.	Oil	27516
42-329-31051	COG OPERATING LLC	Oil	39581
42-329-31052	CHEVRON U. S. A. INC.	Oil	26734
42-329-31053	DISCOVERY OPERATING, INC.	Oil	27738
42-329-31054	DISCOVERY OPERATING, INC.	Oil	28130
42-329-31055
42-329-31056	PIONEER NATURAL RES. USA, INC.	Oil	27179
42-329-31057	PARSLEY ENERGY OPERATIONS, LLC	Oil	27171
42-329-31058	ATLANTIC OPERATING, INC.	Oil	39181
42-329-31059	WILSON ENERGY, INC.	Oil	28950
42-329-31060	ATLANTIC OPERATING, INC.	Oil	39181
42-329-31061	TXO Production Corp.	Oil
42-329-31062	ATLANTIC OPERATING, INC.	Oil	39185
42-329-31063	Texas American Oil Corp.
42-329-31064	THOMSON-MONTEITH	Oil	39181
42-329-31065	FASKEN OIL AND RANCH, LTD.	Oil	45317
42-329-31066
42-329-31067
42-329-31068	TEXACO E & P INC.	Oil	27225
42-329-31069	CHEVRON U. S. A. INC.	Oil	27494
42-329-31070	JM COX RESOURCES, L.P.	Oil	27445
42-329-31071	JMW RESOURCES, INC.	Oil	28074
42-329-31072	SMITH BROTHERS OIL & GAS, INC.	Oil	34540
42-329-31073	MEXIA OIL & GAS, INC.
42-329-31074
42-329-31076	DISCOVERY OPERATING, INC.
42-329-31077	DISCOVERY OPERATING, INC.	Oil	27739
42-329-31078	COG OPERATING LLC	Oil	27745
42-329-31079	TEXACO E & P INC.	Oil	36008
42-329-31080	AREA PIPE AND EQUIPMENT	Oil	27622
42-329-31081	TAMARACK PETROLEUM COMPANY, INC.	Oil	28302
42-329-31082	DISCOVERY OPERATING, INC.	Oil	27633
42-329-31083	FASKEN OIL AND RANCH, LTD.	Oil	27765
42-329-31084	CHEVRON U. S. A. INC.	Oil	27585
42-329-31085	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06284
42-329-31086	FASKEN OIL AND RANCH, LTD.	Oil	27765
42-329-31087	PRIME OPERATING COMPANY	Oil	27654
42-329-31088	CHEVRON U. S. A. INC.	Oil	27677
42-329-31089	CHEVRON U. S. A. INC.	Oil	27913
42-329-31090	Union Texas Petroleum Corp.	Oil
42-329-31091	PRIME OPERATING COMPANY	Oil	27654
42-329-31093	PRIME OPERATING COMPANY	Oil	27713
42-329-31094	MIDKIFF, HUNTER
42-329-31095	PIONEER NATURAL RES. USA, INC.	Oil	27761
42-329-31096	ANSCHUTZ CORPORATION, THE	Oil	40275
42-329-31097	PRIME OPERATING COMPANY	Oil	27712
42-329-31098	ATLANTIC OPERATING, INC.	Oil	39184
42-329-31099	PIONEER NATURAL RES. USA, INC.	Oil	27710
42-329-31100	SMITH BROS. CASING PULLERS, INC.	Oil	27797
42-329-31101	TEXACO E & P INC.	Oil	27633
42-329-31102	ATLANTIC OPERATING, INC.	Oil	39183
42-329-31103	PRIME OPERATING COMPANY	Oil	27654
42-329-31104	ENDEAVOR ENERGY RESOURCES L.P.	Oil	27471
42-329-31105	PARSLEY ENERGY OPERATIONS, LLC	Oil	27908
42-329-31106	JM COX RESOURCES, L.P.	Oil	14801
42-329-31107	Cox, John L.	Oil	27725
42-329-31108	CHAPARRAL WATER SYSTEMS	Oil	31546
42-329-31109	Apache Corporation	Oil	01186
42-329-31110	BRAZOS PETROLEUM CO.
42-329-31111	PRIME OPERATING COMPANY	Oil	27713
42-329-31112	PRIME OPERATING COMPANY	Oil	27654
42-329-31113	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21412
42-329-31114	PIONEER NATURAL RES. USA, INC.	Oil	24445
42-329-31115	HENRY PETROLEUM LP	Oil	28535
42-329-31116	PIONEER NATURAL RES. USA, INC.	Oil	27909
42-329-31117	PIONEER NATURAL RES. USA, INC.	Oil	27909
42-329-31118	ENDEAVOR ENERGY RESOURCES L.P.	Gas	128908
42-329-31119	ATLANTIC OPERATING, INC.	Oil	39186
42-329-31120	PIONEER NATURAL RES. USA, INC.	Oil	27903
42-329-31121	ATLANTIC OPERATING, INC.	Oil	45749
42-329-31122	ATLANTIC OPERATING, INC.	Oil	27931
42-329-31123	PRIME OPERATING COMPANY	Oil	27966
42-329-31124	DE3 OPERATING LLC	Oil	27925
42-329-31125	CHEVRON U. S. A. INC.	Gas	142708
42-329-31126	Apache Corporation	Oil	28070
42-329-31127	SMITH BROS. CASING PULLERS, INC.	Oil	27797
42-329-31128	DISCOVERY OPERATING, INC.	Oil	28195
42-329-31129	PIONEER NATURAL RES. USA, INC.	Oil	27952
42-329-31130	PIONEER NATURAL RES. USA, INC.	Oil	27964
42-329-31131	PIONEER NATURAL RES. USA, INC.	Oil	27953
42-329-31132	PIONEER NATURAL RES. USA, INC.	Oil	27904
42-329-31133	MOBIL PRODUCING TX. & N.M. INC.	Oil	39629
42-329-31134	PIONEER NATURAL RES. USA, INC.	Oil	22584
42-329-31136	WILSON SYSTEMS, INC.	Oil	30798
42-329-31137
42-329-31138	XTO ENERGY INC.	Oil	28207
42-329-31139	DISCOVERY OPERATING, INC.	Oil
42-329-31140	Phillips Petroleum Company	Oil	29208
42-329-31141	Dorchester Exploration, Inc.
42-329-31142	CHEVRON U. S. A. INC.	Oil	27677
42-329-31143	JM COX RESOURCES, L.P.	Oil	21939
42-329-31144	TEXACO E & P INC.	Oil	28182
42-329-31145	WILSON ENERGY, INC.
42-329-31146	DISCOVERY OPERATING, INC.	Oil	29039
42-329-31147	JMW RESOURCES, INC.	Oil	28697
42-329-31149	THOMSON-MONTEITH
42-329-31150	THOMSON-MONTEITH
42-329-31151	Henry Petroleum Corp.	Oil	42837
42-329-31152	PRIME OPERATING COMPANY	Oil	27712
42-329-31153	Parker & Parsley Development Co.	Oil
42-329-31154	PLAINS PETROLEUM OPERATING CO.	Oil	31822
42-329-31155	OGR OPERATING CO, INC.	Oil	28447
42-329-31156	ATLANTIC OPERATING, INC.	Oil	27931
42-329-31157	Hanson Operating Company, Inc.	Oil
42-329-31158	MURCHISON OIL & GAS INC	Oil	28382
42-329-31160	PARKER & PARSLEY DEVELOPMENT L.P	Oil	08664
42-329-31161	PRIME OPERATING COMPANY	Oil	27654
42-329-31162	MOJAVE ENERGY
42-329-31163	FASKEN OIL AND RANCH, LTD.	Oil	33664
42-329-31164	DE3 OPERATING LLC	Oil	22066
42-329-31165	PARKER & PARSLEY PETROLEUM CO.	Oil	28378
42-329-31166	Union Texas Petroleum Corp.	Oil	31538
42-329-31167	ANSCHUTZ CORPORATION, THE	Oil
42-329-31168	BRAZOS PETROLEUM CO.
42-329-31170	PIONEER NATURAL RES. USA, INC.	Oil	28280
42-329-31171	SMITH BROS. CASING PULLERS, INC.	Oil	27797
42-329-31172	SOHIO PETROLEUM CO.
42-329-31173	PRIME OPERATING COMPANY	Oil	28330
42-329-31174	Phillips Petroleum Company	Oil	29208
42-329-31175	PIONEER NATURAL RES. USA, INC.	Oil	28348
42-329-31176	Henry Petroleum Corp.	Oil	33084
42-329-31177	PBEX OPERATIONS, LLC	Oil	28346
42-329-31178	PIONEER NATURAL RES. USA, INC.	Oil	28319
42-329-31179	PIONEER NATURAL RES. USA, INC.	Oil	28387
42-329-31180	WILSON ENERGY, INC./LAWLESS
42-329-31181	ANSCHUTZ CORPORATION, THE
42-329-31182	DE3 OPERATING LLC	Oil	28425
42-329-31183	PARKER & PARSLEY, INC.	Oil	28424
42-329-31184	PIONEER NATURAL RES. USA, INC.	Oil	28424
42-329-31185	WILSON ENERGY
42-329-31186	PIONEER NATURAL RES. USA, INC.	Oil	28329
42-329-31187	ANSCHUTZ CORPORATION, THE
42-329-31188	PIONEER NATURAL RES. USA, INC.	Oil	28511
42-329-31189	PIONEER NATURAL RES. USA, INC.	Oil	28419
42-329-31190	PIONEER NATURAL RES. USA, INC.	Oil	28419
42-329-31191	Southland Royalty Company
42-329-31192	JM COX RESOURCES, L.P.	Oil	28553
42-329-31193	ARCO PERMIAN	Oil	10512
42-329-31194	PRIME OPERATING COMPANY	Oil	29819
42-329-31195	BRAZOS PETROLEUM CO.
42-329-31196	PIONEER NATURAL RES. USA, INC.	Oil	30992
42-329-31197	PIONEER NATURAL RES. USA, INC.	Oil	30992
42-329-31198	PIONEER NATURAL RES. USA, INC.	Oil	28860
42-329-31199	ENDEAVOR ENERGY RESOURCES L.P.	Oil	28494
42-329-31200	XTO ENERGY INC.	Oil	28207
42-329-31201	CHEVRON U. S. A. INC.	Oil	27494
42-329-31202	JM COX RESOURCES, L.P.	Oil	14801
42-329-31203	PARKER & PARSLEY, INC.
42-329-31204	PIONEER NATURAL RES. USA, INC.	Oil	28713
42-329-31205	Southland Royalty Company	Oil
42-329-31206	COG OPERATING LLC	Oil	26538
42-329-31207	PRIME OPERATING COMPANY	Oil	27654
42-329-31209	BYRD OPERATING COMPANY	Oil	36161
42-329-31210	BOLGER OPERATING CO.	Oil
42-329-31211	ENDEAVOR ENERGY RESOURCES L.P.	Oil	27471
42-329-31212	PIONEER NATURAL RES. USA, INC.	Oil	28661
42-329-31213	ENDEAVOR ENERGY RESOURCES L.P.	Oil	28534
42-329-31214	FASKEN, BARBARA	Oil	40483
42-329-31215	Henry Petroleum Corp.	Oil	28188
42-329-31216	PIONEER NATURAL RES. USA, INC.	Oil	28713
42-329-31217	PIONEER NATURAL RES. USA, INC.	Oil	28513
42-329-31218	PIONEER NATURAL RES. USA, INC.	Oil	28445
42-329-31219
42-329-31220	PIONEER NATURAL RES. USA, INC.	Oil	28578
42-329-31221	PIONEER NATURAL RES. USA, INC.	Oil	28510
42-329-31222	PIONEER NATURAL RES. USA, INC.	Oil	28574
42-329-31223	PIONEER NATURAL RES. USA, INC.	Oil	28699
42-329-31224	TEXACO E & P INC.	Gas	136432
42-329-31225	BRAZOS PETROLEUM CO.
42-329-31226	LACY & BYRD, INC.	Oil	28904
42-329-31227	PRIME OPERATING COMPANY	Oil	28531
42-329-31228	COG OPERATING LLC	Oil	39629
42-329-31229	HCW EXPLORATION, INC.	Oil	29540
42-329-31230	ATLANTIC OPERATING, INC.	Oil	39184
42-329-31231	PIONEER NATURAL RES. USA, INC.	Oil	28564
42-329-31232	PARKER & PARSLEY PETROLEUM CO.	Oil	23328
42-329-31233	TENNECO OIL CO.
42-329-31234	BAYTECH, INC.	Oil	29688
42-329-31235	XTO ENERGY INC.	Oil	23538
42-329-31236	Henry Petroleum Corp.	Oil	39665
42-329-31237	Graham Royalty, Ltd.	Oil	16196
42-329-31238	M. A. HANNA CO.	Oil	29935
42-329-31239	PARKER & PARSLEY DEVELOPMENT L.P	Oil	28597
42-329-31240	Apache Corporation	Oil	25871
42-329-31241	PIONEER NATURAL RES. USA, INC.	Oil	28577
42-329-31242	PIONEER NATURAL RES. USA, INC.	Oil	28659
42-329-31243	DISCOVERY OPERATING, INC.	Oil	28893
42-329-31244	PIONEER NATURAL RES. USA, INC.	Oil	28696
42-329-31245	PIONEER NATURAL RES. USA, INC.	Oil	28698
42-329-31246	PIONEER NATURAL RES. USA, INC.	Oil	28642
42-329-31247	MARALO, INC.
42-329-31248	Apache Corporation	Oil	25838
42-329-31249	TRINITY ENVIRO SWD I, L.L.C.	Oil	29085
42-329-31250	RP OPERATING, L.L.C.	Oil	28934
42-329-31251	BRAZOS PETROLEUM CO.	Oil	29957
42-329-31252	Apache Corporation	Oil	25590
42-329-31253	Apache Corporation	Oil	25590
42-329-31254	O'NEILL PROPERTIES, LTD.	Oil
42-329-31255	Apache Corporation	Oil	28662
42-329-31256	HNG Oil Company	Oil
42-329-31259	CONTINENTAL U S EXPLORATION, INC
42-329-31260	TAMARACK PETROLEUM COMPANY, INC.	Oil	28677
42-329-31261	PIONEER NATURAL RES. USA, INC.	Oil	21715
42-329-31262	COG OPERATING LLC	Oil	29388
42-329-31263	PIONEER NATURAL RES. USA, INC.	Oil	28712
42-329-31264	CENTERFIRE RESOURCES	Oil	28963
42-329-31265	PARSLEY ENERGY OPERATIONS, LLC	Oil	25528
42-329-31266	PARSLEY ENERGY OPERATIONS, LLC	Oil	25267
42-329-31267	PARKER & PARSLEY, INC.
42-329-31268	PARKER & PARSLEY DEVELOPMENT L.P	Oil	28793
42-329-31269	PIONEER NATURAL RES. USA, INC.	Oil	28811
42-329-31270	PARKER & PARSLEY, INC.	Oil	28811
42-329-31271	DISCOVERY OPERATING, INC.	Oil	29388
42-329-31272	PIONEER NATURAL RES. USA, INC.	Oil	28752
42-329-31273	CHEVRON U. S. A. INC.	Oil	34196
42-329-31274	PIONEER NATURAL RES. USA, INC.	Oil	28752
42-329-31275	XTO ENERGY INC.	Gas	173376
42-329-31276	PIONEER NATURAL RES. USA, INC.	Oil	28734
42-329-31277	PIONEER NATURAL RES. USA, INC.	Oil	28791
42-329-31278	COG OPERATING LLC	Oil	26538
42-329-31279	COG OPERATING LLC	Oil	39630
42-329-31280	COG OPERATING LLC	Oil	11746
42-329-31281	ATLANTIC OPERATING, INC.	Oil	39182
42-329-31282	Apache Corporation	Oil	28844
42-329-31283	COG OPERATING LLC	Oil	28971
42-329-31284	Henry Petroleum Corp.	Oil	29241
42-329-31285	DE3 OPERATING LLC	Oil	28843
42-329-31286	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-31287	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-31288	CHEVRON U. S. A. INC.	Gas	135428
42-329-31289	HCW EXPLORATION, INC.	Oil	29783
42-329-31290	PIONEER NATURAL RES. USA, INC.	Oil	28949
42-329-31291	XTO ENERGY INC.	Oil	28207
42-329-31292	FASKEN OIL AND RANCH, LTD.	Oil	28997
42-329-31294	SANDERS OIL & GAS CO.
42-329-31295	PIONEER NATURAL RES. USA, INC.	Oil	34156
42-329-31296	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-31297	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-31298	PIONEER NATURAL RES. USA, INC.	Oil	29651
42-329-31299	SOUTHWEST ROYALTIES, INC.	Oil	34926
42-329-31300	PIONEER NATURAL RES. USA, INC.	Oil	28945
42-329-31301	PIONEER NATURAL RES. USA, INC.	Oil	28945
42-329-31302	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-31303	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-31304	PIONEER NATURAL RES. USA, INC.	Oil	29044
42-329-31305	PARKER & PARSLEY DEVELOPMENT L.P	Oil	28875
42-329-31306
42-329-31307	SOUTHWEST ROYALTIES, INC.	Oil	29398
42-329-31308	Gulf Oil Corp.
42-329-31309	PRIME OPERATING COMPANY	Oil	28330
42-329-31310	HENDON EXPLORATION, INC.
42-329-31311	DAVIS & CARR ENERGY CO.
42-329-31312	MURCHISON OIL & GAS INC	Oil	37743
42-329-31313	COG OPERATING LLC	Oil	39630
42-329-31314	COG OPERATING LLC	Oil	39630
42-329-31315	PARKER & PARSLEY DEVELOPMENT L.P	Oil	29025
42-329-31316	XTO ENERGY INC.	Oil	28207
42-329-31317	FASKEN OIL AND RANCH, LTD.	Oil	36115
42-329-31318	COG OPERATING LLC	Oil	26538
42-329-31319	COG OPERATING LLC	Oil	26538
42-329-31320	XTO ENERGY INC.	Gas	173519
42-329-31321	COG OPERATING LLC	Oil	26538
42-329-31322	XTO ENERGY INC.	Oil	39630
42-329-31323	OXY USA INC.	Oil	34646
42-329-31324	COG OPERATING LLC	Oil	39630
42-329-31325	COG OPERATING LLC	Oil	26538
42-329-31326	PIONEER NATURAL RES. USA, INC.	Oil	29034
42-329-31327	BOLGER OPERATING CO.	Oil	28766
42-329-31328	PIONEER NATURAL RES. USA, INC.	Oil	29105
42-329-31329	PRIME OPERATING COMPANY	Oil	29019
42-329-31330	DISCOVERY OPERATING, INC.	Oil	29354
42-329-31331	DISCOVERY OPERATING, INC.	Oil	29293
42-329-31332	ENDEAVOR ENERGY RESOURCES L.P.	Oil	29415
42-329-31333	PIONEER NATURAL RES. USA, INC.	Oil	28445
42-329-31334	PIONEER NATURAL RES. USA, INC.	Oil	29075
42-329-31335	PIONEER NATURAL RES. USA, INC.	Oil	29184
42-329-31336	ENDEAVOR ENERGY RESOURCES L.P.	Oil	32652
42-329-31337	PIONEER NATURAL RES. USA, INC.	Oil	29652
42-329-31338	PIONEER NATURAL RES. USA, INC.	Oil	29396
42-329-31339
42-329-31340
42-329-31341	PIONEER NATURAL RES. USA, INC.	Oil	29183
42-329-31342	PARSLEY ENERGY OPERATIONS, LLC	Oil	29124
42-329-31343	SMITH BROS. CASING PULLERS, INC.	Oil	29839
42-329-31344
42-329-31345	Henry Petroleum Corp.	Oil	32394
42-329-31346	PIONEER NATURAL RES. USA, INC.	Oil	29485
42-329-31347	COG OPERATING LLC	Oil	39630
42-329-31348
42-329-31349	DISCOVERY OPERATING, INC.	Oil	29434
42-329-31350	DISCOVERY OPERATING, INC.	Oil	29434
42-329-31351	COG OPERATING LLC	Oil	26538
42-329-31352	COG OPERATING LLC	Oil	39630
42-329-31353	COG OPERATING LLC	Oil	26538
42-329-31354	Apache Corporation	Oil	10968
42-329-31355	PARSLEY ENERGY OPERATIONS, LLC	Oil	29124
42-329-31356	COG OPERATING LLC	Oil	39630
42-329-31357	COG OPERATING LLC	Oil	26538
42-329-31358	COG OPERATING LLC	Oil	11746
42-329-31359	COG OPERATING LLC	Oil	26538
42-329-31360	PIONEER NATURAL RES. USA, INC.	Oil	29182
42-329-31361	COG OPERATING LLC	Oil	26538
42-329-31362	COG OPERATING LLC	Oil	26538
42-329-31363	PIONEER NATURAL RES. USA, INC.	Oil	29260
42-329-31364	PIONEER NATURAL RES. USA, INC.	Oil	29181
42-329-31365	PIONEER NATURAL RES. USA, INC.	Oil	29543
42-329-31366	PIONEER NATURAL RES. USA, INC.	Oil	21715
42-329-31367	PIONEER NATURAL RES. USA, INC.	Oil	29372
42-329-31368	PIONEER NATURAL RES. USA, INC.	Oil	29323
42-329-31369	PIONEER NATURAL RES. USA, INC.	Oil	29612
42-329-31370	PIONEER NATURAL RES. USA, INC.	Oil	29612
42-329-31371	PIONEER NATURAL RES. USA, INC.	Oil	29329
42-329-31372	ENERGEN RESOURCES CORPORATION	Oil	16486
42-329-31373	PIONEER NATURAL RES. USA, INC.	Oil	29229
42-329-31374	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37015
42-329-31375	PIONEER NATURAL RES. USA, INC.	Oil	29221
42-329-31376	OXY USA WTP LP	Oil	29629
42-329-31377	ATLANTIC OPERATING, INC.	Oil	39186
42-329-31378	ATLANTIC OPERATING, INC.	Oil	28876
42-329-31379	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-31380	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-31381	PIONEER NATURAL RES. USA, INC.	Oil	29371
42-329-31382	PIONEER NATURAL RES. USA, INC.	Oil	29611
42-329-31383	PIONEER NATURAL RES. USA, INC.	Oil	29467
42-329-31384	PIONEER NATURAL RES. USA, INC.	Oil	33957
42-329-31385	PIONEER NATURAL RES. USA, INC.	Oil	29475
42-329-31386	MOBIL PRODUCING TX. & N.M. INC.	Oil	33707
42-329-31387
42-329-31388	HERITAGE STANDARD CORPORATION	Oil	29832
42-329-31389	PIONEER NATURAL RES. USA, INC.	Oil	29316
42-329-31390	PIONEER NATURAL RES. USA, INC.	Oil	29435
42-329-31391	PARKER & PARSLEY, INC.	Oil	29653
42-329-31392	EXXON CORP.	Oil	31234
42-329-31393	EXXON CORP.	Gas	135015
42-329-31395	DE3 OPERATING LLC	Oil	24355
42-329-31396	HAMMAN OIL & REFINING COMPANY	Oil	29931
42-329-31397	OXY USA INC.	Oil	34635
42-329-31398	Cox, John L.
42-329-31399
42-329-31400	PIONEER NATURAL RES. USA, INC.	Oil	29465
42-329-31401	PIONEER NATURAL RES. USA, INC.	Oil	29402
42-329-31402	FASKEN OIL AND RANCH, LTD.	Oil	29230
42-329-31403	OXY USA WTP LP	Oil	34635
42-329-31404	BOLGER OPERATING CO.	Oil	28766
42-329-31405	PIONEER NATURAL RES. USA, INC.	Oil	29464
42-329-31406	PIONEER NATURAL RES. USA, INC.	Oil	29464
42-329-31407	PIONEER NATURAL RES. USA, INC.	Oil	29466
42-329-31408	PIONEER NATURAL RES. USA, INC.	Oil	30222
42-329-31409	ENDEAVOR ENERGY RESOURCES L.P.	Gas	116142
42-329-31410	MLC CO., INC.	Oil	32526
42-329-31411	ENERGEN RESOURCES CORPORATION	Oil	16486
42-329-31412	COG OPERATING LLC	Oil	39585
42-329-31413	PIONEER NATURAL RES. USA, INC.	Oil	29468
42-329-31414	PIONEER NATURAL RES. USA, INC.	Oil	29493
42-329-31415	SOUTHWEST ROYALTIES, INC.	Oil	30399
42-329-31416	OXY USA WTP LP	Gas	282033
42-329-31417	ENDEAVOR ENERGY RESOURCES L.P.	Oil	29541
42-329-31418	ENDEAVOR ENERGY RESOURCES L.P.	Oil	29561
42-329-31419	COG OPERATING LLC	Oil	39585
42-329-31420	COG OPERATING LLC	Oil	39630
42-329-31421	PIONEER NATURAL RES. USA, INC.	Oil	29494
42-329-31422	FASKEN, BARBARA	Oil	34497
42-329-31423	DIAMONDBACK E&P LLC	Oil	29540
42-329-31424	FASKEN OIL AND RANCH, LTD.	Oil	29784
42-329-31425	STEPHENS, AUTRY C.	Oil	30538
42-329-31426	BOLGER OPERATING CO.	Oil	28766
42-329-31427	OGS OPERATING COMPANY, INC.	Oil	30646
42-329-31428	PIONEER NATURAL RES. USA, INC.	Oil	29473
42-329-31429	COG OPERATING LLC	Oil	28971
42-329-31430	COG OPERATING LLC	Oil	39630
42-329-31431	DE3 OPERATING LLC	Oil	29814
42-329-31432	COG OPERATING LLC	Oil	26538
42-329-31433	COG OPERATING LLC	Oil	39630
42-329-31434	COG OPERATING LLC	Oil	11746
42-329-31435	COG OPERATING LLC	Oil	39630
42-329-31436	COG OPERATING LLC	Oil	39630
42-329-31437	PIONEER NATURAL RES. USA, INC.	Oil	29488
42-329-31438	OXY USA INC.	Oil	10194
42-329-31439	CONTINENTAL U S EXPLORATION, INC
42-329-31440	CONTINENTAL U S EXPLORATION, INC
42-329-31441
42-329-31442	PIONEER NATURAL RES. USA, INC.	Oil	29486
42-329-31443	PARSLEY ENERGY OPERATIONS, LLC	Oil	29514
42-329-31444	PIONEER NATURAL RES. USA, INC.	Oil	30961
42-329-31445	PARKER & PARSLEY DEVELOPMENT L.P	Oil	29560
42-329-31446	3-M ENERGY CORPORATION
42-329-31447
42-329-31448	DE3 OPERATING LLC	Oil	29657
42-329-31449	Parker & Parsley Development Co.	Oil	33707
42-329-31450	PIONEER NATURAL RES. USA, INC.	Oil	29710
42-329-31451
42-329-31452	ODESSA EXPLORATION, INC.	Oil	15400
42-329-31453	DE3 OPERATING LLC	Oil	29614
42-329-31454	PARKER & PARSLEY OPERATING LLC	Oil	26153
42-329-31455	GREEN, ROY W. OIL & GAS	Oil	36689
42-329-31456	SANTEX EXPLORATION, INC.	Oil
42-329-31457	SANTA FE MINERALS, INC.	Oil	28346
42-329-31458	BYRD OPERATING COMPANY	Oil	34643
42-329-31459	ENERGEN RESOURCES CORPORATION	Oil	36068
42-329-31460	CHEVRON U. S. A. INC.	Oil	40670
42-329-31461	EXXON CORP.	Oil	31223
42-329-31462	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-31463	PIONEER NATURAL RES. USA, INC.	Oil	33714
42-329-31464	WILSON ENERGY, INC.	Oil	31204
42-329-31465	CHEVRON U. S. A. INC.	Gas	136114
42-329-31466	DE3 OPERATING LLC	Oil	30024
42-329-31467	SANTEX EXPLORATION, INC.	Oil
42-329-31468	FASKEN OIL AND RANCH, LTD.	Oil	29744
42-329-31469	MLC CO., INC.	Oil	32455
42-329-31470	CONTINENTAL U S EXPLORATION, INC
42-329-31471	PIONEER NATURAL RES. USA, INC.	Oil	29916
42-329-31472	MLC CO., INC.
42-329-31473	PIONEER NATURAL RES. USA, INC.	Oil	29616
42-329-31474	Cox, John L.	Oil	29889
42-329-31475	Cox, John L.	Oil	29889
42-329-31476	PIONEER NATURAL RES. USA, INC.	Oil	29709
42-329-31477	COG OPERATING LLC	Oil	11746
42-329-31478	PIONEER NATURAL RES. USA, INC.	Oil	29747
42-329-31479	DISCOVERY OPERATING, INC.	Oil	30004
42-329-31480	PIONEER NATURAL RES. USA, INC.	Oil	37759
42-329-31481	PIONEER NATURAL RES. USA, INC.	Oil	38252
42-329-31482	Apache Corporation	Oil	10968
42-329-31483	PIONEER NATURAL RES. USA, INC.	Oil	30626
42-329-31484	Union Texas Petroleum Corp.	Oil	30589
42-329-31485	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33312
42-329-31486	FASKEN OIL AND RANCH, LTD.	Oil	29826
42-329-31487	EP Operating Company	Oil	31708
42-329-31488	EXXON CORP.
42-329-31489	PIONEER NATURAL RES. USA, INC.	Oil	29811
42-329-31490	BLUESTEM ENERGY HOLDINGS, LLC	Oil
42-329-31491	Parker & Parsley Development Co.	Gas	141681
42-329-31492	OGS OPERATING COMPANY, INC.	Oil	30646
42-329-31493	DIAMONDBACK E&P LLC	Oil	29731
42-329-31494	HCW EXPLORATION, INC.	Oil	30260
42-329-31495	HCW EXPLORATION, INC.
42-329-31496	MLC CO., INC.	Oil	32454
42-329-31497	COG OPERATING LLC	Oil	39630
42-329-31498	COG OPERATING LLC	Oil	26538
42-329-31499	COG OPERATING LLC	Oil	26538
42-329-31500	PIONEER NATURAL RES. USA, INC.	Oil	29402
42-329-31501	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-31502	PIONEER NATURAL RES. USA, INC.	Oil
42-329-31503	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-31504	PIONEER NATURAL RES. USA, INC.	Oil	23633
42-329-31505	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21892
42-329-31506	JMW RESOURCES, INC.	Oil	30602
42-329-31507	HERITAGE RESOURCES, INC.	Oil	36885
42-329-31508	SCOUT ENERGY MANAGEMENT LLC	Oil	40191
42-329-31509	ROSEWOOD RESOURCES, INC.	Oil	33387
42-329-31510	Union Texas Petroleum Corp.
42-329-31511	Texas American Oil Corp.
42-329-31512	CASS OIL COMPANY
42-329-31513	FASKEN, BARBARA	Oil	29967
42-329-31514	FASKEN, BARBARA	Oil	29987
42-329-31515	EXXON CORP.
42-329-31516	Felmont Oil Corp.
42-329-31517	HAMMAN OIL & REFINING COMPANY	Oil
42-329-31518	COG OPERATING LLC	Oil	39627
42-329-31519	CARLOW CORP.	Oil	30099
42-329-31520	PIONEER NATURAL RES. USA, INC.	Oil	22737
42-329-31521	HERITAGE STANDARD CORPORATION	Oil	30020
42-329-31522	PIONEER NATURAL RES. USA, INC.
42-329-31523
42-329-31524	EXXON CORP.
42-329-31525	PIONEER NATURAL RES. USA, INC.	Oil	23365
42-329-31526	PIONEER NATURAL RES. USA, INC.	Oil	33707
42-329-31527	PIONEER NATURAL RES. USA, INC.	Oil	33707
42-329-31528	PIONEER NATURAL RES. USA, INC.	Oil	23365
42-329-31529	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-31530	EXXON CORP.	Oil	06414
42-329-31531	EXXON CORP.
42-329-31532	FASKEN, BARBARA	Oil	30143
42-329-31533	COG OPERATING LLC	Oil	26538
42-329-31534	COG OPERATING LLC	Oil	39630
42-329-31535	EXXON CORP.
42-329-31536	JM COX RESOURCES, L.P.	Oil	21939
42-329-31537	COG OPERATING LLC	Oil	11643
42-329-31538	Parker & Parsley Development Co.	Oil	33708
42-329-31539	PIONEER NATURAL RES. USA, INC.	Oil	29710
42-329-31540	PIONEER NATURAL RES. USA, INC.	Oil	22168
42-329-31541	PIONEER NATURAL RES. USA, INC.	Oil	22840
42-329-31542	PIONEER NATURAL RES. USA, INC.	Oil	33721
42-329-31543	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-31544	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-31545	PIONEER NATURAL RES. USA, INC.	Oil	29402
42-329-31546	EXXON CORP.
42-329-31547	WILSON ENERGY, INC.	Oil	30223
42-329-31548	PIONEER NATURAL RES. USA, INC.	Oil	30034
42-329-31549	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-31550	PARKER & PARSLEY DEVELOPMENT L.P	Gas	136279
42-329-31551	PIONEER NATURAL RES. USA, INC.	Oil	37616
42-329-31552	EXXON CORP.
42-329-31553	EXXON CORP.
42-329-31554	EXXON CORP.	Oil	06414
42-329-31555	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-31556	EXXON CORP.	Oil	36311
42-329-31557
42-329-31558	Coastal Oil & Gas Corporation	Oil	31175
42-329-31559	COG OPERATING LLC	Oil	30230
42-329-31560	PIONEER NATURAL RES. USA, INC.	Oil	37667
42-329-31561	Felmont Oil Corp.	Oil	34424
42-329-31562
42-329-31563
42-329-31564
42-329-31565	PARSLEY ENERGY OPERATIONS, LLC	Oil	29514
42-329-31566	EXXON CORP.
42-329-31567	PIONEER NATURAL RES. USA, INC.	Oil	30259
42-329-31568	PIONEER NATURAL RES. USA, INC.	Oil	30256
42-329-31569	PIONEER NATURAL RES. USA, INC.	Oil	30294
42-329-31570	DIAMONDBACK E&P LLC	Oil	30111
42-329-31571	ENERGEN RESOURCES CORPORATION	Oil	16363
42-329-31572	ENDEAVOR ENERGY RESOURCES L.P.	Oil	29561
42-329-31573	COSTEX RESOURCES, INC.	Oil	39305
42-329-31574	PIONEER NATURAL RES. USA, INC.	Oil	30187
42-329-31575	COG OPERATING LLC	Oil	39627
42-329-31576	EXXON CORP.	Oil	36456
42-329-31577	ARCO PERMIAN	Gas	158530
42-329-31578	MOBIL PRODUCING TX. & N.M. INC.
42-329-31579	MOBIL PRODUCING TX. & N.M. INC.
42-329-31580
42-329-31581	PIONEER NATURAL RES. USA, INC.	Oil	30156
42-329-31582	BYRD OPERATING COMPANY	Oil	28367
42-329-31583	SMITH BROS. CASING PULLERS, INC.	Oil	30303
42-329-31584	Legacy Reserves Operating LP	Oil	30164
42-329-31585	Legacy Reserves Operating LP	Oil	30188
42-329-31586	CHEVRON U. S. A. INC.	Gas	119662
42-329-31587	ROSEWOOD RESOURCES, INC.
42-329-31588	EXXON CORP.
42-329-31589	PIONEER NATURAL RES. USA, INC.	Oil	22255
42-329-31590	BROWN, TOM INC.	Oil	37065
42-329-31591	PIONEER NATURAL RES. USA, INC.	Oil	37616
42-329-31592	DE3 OPERATING LLC	Oil	22167
42-329-31593	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21412
42-329-31594	PIONEER NATURAL RES. USA, INC.	Oil	37700
42-329-31595	PIONEER NATURAL RES. USA, INC.	Oil	30255
42-329-31596	PIONEER NATURAL RES. USA, INC.	Oil	22051
42-329-31597	PIONEER NATURAL RES. USA, INC.	Oil	22051
42-329-31598	PIONEER NATURAL RES. USA, INC.	Oil	23151
42-329-31599	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21412
42-329-31600	EXXON CORP.
42-329-31601	PIONEER NATURAL RES. USA, INC.	Oil	30300
42-329-31602	PIONEER NATURAL RES. USA, INC.	Oil	30255
42-329-31603	MOBIL PRODUCING TX. & N.M. INC.	Oil	31092
42-329-31604	DE3 OPERATING LLC	Oil	30345
42-329-31605	DIAMONDBACK E&P LLC	Oil	30418
42-329-31606	DIAMONDBACK E&P LLC	Oil	30393
42-329-31607	PARKER & PARSLEY PETROLEUM CO.
42-329-31608	BROWN, TOM INC.
42-329-31609	EXXON CORP.	Oil	33773
42-329-31610	PIONEER NATURAL RES. USA, INC.	Oil	30344
42-329-31611	SOUTHWEST ROYALTIES, INC.	Oil	30461
42-329-31612	PIONEER NATURAL RES. USA, INC.	Oil	23365
42-329-31613	PIONEER NATURAL RES. USA, INC.	Oil	23365
42-329-31614	DISCOVERY OPERATING, INC.
42-329-31615	PIONEER NATURAL RES. USA, INC.	Oil	30327
42-329-31616	PIONEER NATURAL RES. USA, INC.	Oil	30327
42-329-31617
42-329-31618	PIONEER NATURAL RES. USA, INC.	Oil	33721
42-329-31619	PIONEER NATURAL RES. USA, INC.	Oil	30784
42-329-31620	PIONEER NATURAL RES. USA, INC.	Oil	33707
42-329-31621	PIONEER NATURAL RES. USA, INC.	Oil	33707
42-329-31622	Apache Corporation	Oil	06309
42-329-31623
42-329-31624	PIONEER NATURAL RES. USA, INC.	Oil	30305
42-329-31625	PIONEER NATURAL RES. USA, INC.	Oil	30328
42-329-31626	PIONEER NATURAL RES. USA, INC.	Oil	33707
42-329-31627	PIONEER NATURAL RES. USA, INC.	Oil	20120
42-329-31628	EXXON CORP.
42-329-31629	PIONEER NATURAL RES. USA, INC.	Oil	42061
42-329-31630	PIONEER NATURAL RES. USA, INC.	Oil	30344
42-329-31631	Cox, John L.	Oil	23635
42-329-31632	DE3 OPERATING LLC	Oil	22522
42-329-31633	PIONEER NATURAL RES. USA, INC.	Oil	30329
42-329-31634	PARKER & PARSLEY PETROLEUM CO.	Oil	30929
42-329-31635	PIONEER NATURAL RES. USA, INC.	Oil	30347
42-329-31636	EXXON CORP.
42-329-31637	Apache Corporation	Oil	06297
42-329-31638	Parker & Parsley Development Co.	Oil	30709
42-329-31639	PIONEER NATURAL RES. USA, INC.	Oil	33722
42-329-31640	PARKER & PARSLEY PETROLEUM CO.	Oil	30423
42-329-31641	Parker & Parsley Development Co.	Oil	30612
42-329-31642	PIONEER NATURAL RES. USA, INC.	Oil	30386
42-329-31643	PIONEER NATURAL RES. USA, INC.	Oil	30381
42-329-31644	PIONEER NATURAL RES. USA, INC.	Oil	27903
42-329-31645	PIONEER NATURAL RES. USA, INC.	Oil	30422
42-329-31646	PIONEER NATURAL RES. USA, INC.	Oil	30384
42-329-31647	PIONEER NATURAL RES. USA, INC.	Oil	30396
42-329-31648	PIONEER NATURAL RES. USA, INC.	Oil	30385
42-329-31649	PIONEER NATURAL RES. USA, INC.	Oil	30422
42-329-31650	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-31651	ARCO PERMIAN	Oil	11586
42-329-31652	EXXON CORP.
42-329-31653	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-31654	PIONEER NATURAL RES. USA, INC.	Oil	30397
42-329-31655	EXXON CORP.	Oil	32114
42-329-31656	Parker & Parsley Development Co.	Oil	23609
42-329-31657	PIONEER NATURAL RES. USA, INC.	Oil	30397
42-329-31658	PIONEER NATURAL RES. USA, INC.	Oil	31150
42-329-31659	PIONEER NATURAL RES. USA, INC.	Oil	30971
42-329-31660	MARIENFELD EXPLORATION	Oil	33834
42-329-31661	PIONEER NATURAL RES. USA, INC.	Oil	30512
42-329-31662	Bta Oil Producers	Oil	30715
42-329-31663	PIONEER NATURAL RES. USA, INC.	Oil	30791
42-329-31664	EXXON CORP.
42-329-31665	EXXON CORP.
42-329-31666	EXXON CORP.
42-329-31667	EXXON CORP.
42-329-31668	EXXON CORP.
42-329-31669	WILSON ENERGY, INC.
42-329-31670	PIONEER NATURAL RES. USA, INC.	Oil	30513
42-329-31671	PIONEER NATURAL RES. USA, INC.	Oil	31038
42-329-31672	DE3 OPERATING LLC	Oil	22066
42-329-31673	DE3 OPERATING LLC	Oil	22522
42-329-31674	DE3 OPERATING LLC	Oil	22877
42-329-31675	PIONEER NATURAL RES. USA, INC.	Oil	30608
42-329-31676
42-329-31677	MOBIL PRODUCING TX. & N.M. INC.	Oil	21487
42-329-31678	PIONEER NATURAL RES. USA, INC.	Oil	30661
42-329-31679	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21412
42-329-31680	Cox, John L.	Oil	23635
42-329-31681	PARKER & PARSLEY PETROLEUM CO.	Oil	27657
42-329-31682	PIONEER NATURAL RES. USA, INC.	Oil	30821
42-329-31683	TEMPO ENERGY, INC.	Oil	32107
42-329-31684	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23821
42-329-31685	Parker & Parsley Development Co.	Oil	33708
42-329-31686
42-329-31687	PIONEER NATURAL RES. USA, INC.	Oil	36527
42-329-31688	PIONEER NATURAL RES. USA, INC.	Oil	42060
42-329-31689	PIONEER NATURAL RES. USA, INC.	Oil	52661
42-329-31690	PIONEER NATURAL RES. USA, INC.	Oil	30724
42-329-31691	PIONEER NATURAL RES. USA, INC.	Oil	30724
42-329-31692	DEVONIAN, INC.
42-329-31693	PIONEER NATURAL RES. USA, INC.	Oil	52711
42-329-31694	EXXON CORP.
42-329-31695	HCW EXPLORATION, INC.
42-329-31696	EXXON CORP.
42-329-31697	ENDEAVOR ENERGY RESOURCES L.P.	Oil	30819
42-329-31698	PERMIAN DEEP ROCK OIL CO., LLC	Oil	30814
42-329-31699	EXXON CORP.
42-329-31700	PARKER & PARSLEY PETROLEUM CO.
42-329-31701	PARKER & PARSLEY PETROLEUM CO.
42-329-31702	PIONEER NATURAL RES. USA, INC.	Oil	30607
42-329-31703	PIONEER NATURAL RES. USA, INC.	Oil	30661
42-329-31704	PIONEER NATURAL RES. USA, INC.	Oil	30821
42-329-31705	EXXON CORP.	Oil	30712
42-329-31706	EXXON CORP.
42-329-31707	SAMEDAN OIL CORPORATION
42-329-31708	ENDEAVOR ENERGY RESOURCES L.P.	Oil	30997
42-329-31709	BRANUM PETROLEUM, INC.
42-329-31710	COG OPERATING LLC	Oil	39630
42-329-31711	PIONEER NATURAL RES. USA, INC.	Oil	28445
42-329-31712	PIONEER NATURAL RES. USA, INC.	Oil	23365
42-329-31713	PIONEER NATURAL RES. USA, INC.	Oil	30974
42-329-31714	PIONEER NATURAL RES. USA, INC.	Oil	23365
42-329-31715	PIONEER NATURAL RES. USA, INC.	Oil	23365
42-329-31716	PIONEER NATURAL RES. USA, INC.	Oil	31103
42-329-31717	PIONEER NATURAL RES. USA, INC.	Oil	30880
42-329-31718	PIONEER NATURAL RES. USA, INC.	Oil	33707
42-329-31719	PIONEER NATURAL RES. USA, INC.	Oil	33707
42-329-31720	PIONEER NATURAL RES. USA, INC.	Oil	30850
42-329-31721	PIONEER NATURAL RES. USA, INC.	Oil	30851
42-329-31722	PIONEER NATURAL RES. USA, INC.	Oil	30868
42-329-31723	PIONEER NATURAL RES. USA, INC.	Oil	30835
42-329-31724	PIONEER NATURAL RES. USA, INC.	Oil	30889
42-329-31725	PIONEER NATURAL RES. USA, INC.	Oil	30881
42-329-31726	BRECK OPERATING CORP.	Oil	30899
42-329-31727	CHEVRON U. S. A. INC.	Oil	30884
42-329-31728	PIONEER NATURAL RES. USA, INC.	Oil	30879
42-329-31729	Parker & Parsley Development Co.	Oil	33725
42-329-31730	PIONEER NATURAL RES. USA, INC.	Oil	30909
42-329-31731	PIONEER NATURAL RES. USA, INC.	Oil	30862
42-329-31732	PIONEER NATURAL RES. USA, INC.	Oil	30908
42-329-31733	PIONEER NATURAL RES. USA, INC.	Oil	30912
42-329-31734	PIONEER NATURAL RES. USA, INC.	Oil	31219
42-329-31735	BRANUM PETROLEUM, INC.
42-329-31736	PIONEER NATURAL RES. USA, INC.	Oil	30911
42-329-31737	PIONEER NATURAL RES. USA, INC.	Oil	30913
42-329-31738	PIONEER NATURAL RES. USA, INC.	Oil	30910
42-329-31739	PIONEER NATURAL RES. USA, INC.	Oil	30966
42-329-31740	PIONEER NATURAL RES. USA, INC.	Oil	30943
42-329-31741	ENRON OIL & GAS COMPANY	Oil	32343
42-329-31742	PIONEER NATURAL RES. USA, INC.	Oil	30951
42-329-31743	PIONEER NATURAL RES. USA, INC.	Oil	30966
42-329-31744	PIONEER NATURAL RES. USA, INC.	Oil	30942
42-329-31745	PIONEER NATURAL RES. USA, INC.	Oil	30938
42-329-31746	Parker & Parsley Development Co.	Oil	33708
42-329-31747	PIONEER NATURAL RES. USA, INC.	Oil	30724
42-329-31748	PIONEER NATURAL RES. USA, INC.	Oil	33717
42-329-31749	PIONEER NATURAL RES. USA, INC.	Oil	30983
42-329-31750	PIONEER NATURAL RES. USA, INC.	Oil	30973
42-329-31751	PIONEER NATURAL RES. USA, INC.	Oil	31022
42-329-31752	MOBIL PRODUCING TX. & N.M. INC.
42-329-31753	PIONEER NATURAL RES. USA, INC.	Oil	31007
42-329-31754	PIONEER NATURAL RES. USA, INC.	Oil	31007
42-329-31755	PIONEER NATURAL RES. USA, INC.	Oil	31087
42-329-31756	PIONEER NATURAL RES. USA, INC.	Oil	30964
42-329-31757	PIONEER NATURAL RES. USA, INC.	Oil	31002
42-329-31758	PIONEER NATURAL RES. USA, INC.	Oil	31002
42-329-31759	PIONEER NATURAL RES. USA, INC.	Oil	30981
42-329-31760	PIONEER NATURAL RES. USA, INC.	Oil	30982
42-329-31761	PIONEER NATURAL RES. USA, INC.	Oil	30982
42-329-31762	PIONEER NATURAL RES. USA, INC.	Oil	30981
42-329-31763	ENDEAVOR ENERGY RESOURCES L.P.	Oil	42836
42-329-31764	PIONEER NATURAL RES. USA, INC.	Oil	31052
42-329-31765	PIONEER NATURAL RES. USA, INC.	Oil	31008
42-329-31766	PIONEER NATURAL RES. USA, INC.	Oil	31012
42-329-31767	TEMPO ENERGY, INC.	Oil
42-329-31768	TEMPO ENERGY, INC.	Oil	32126
42-329-31769	ENDEAVOR ENERGY RESOURCES L.P.	Oil	31139
42-329-31770	E R OPERATING COMPANY	Oil	36036
42-329-31771	PIONEER NATURAL RES. USA, INC.	Oil	31018
42-329-31772	PIONEER NATURAL RES. USA, INC.	Oil	31018
42-329-31773	PIONEER NATURAL RES. USA, INC.	Oil	31026
42-329-31774	DE3 OPERATING LLC	Oil	31051
42-329-31775
42-329-31776	PIONEER NATURAL RES. USA, INC.	Oil	31025
42-329-31777	PIONEER NATURAL RES. USA, INC.	Oil	31025
42-329-31778	PIONEER NATURAL RES. USA, INC.	Oil	31061
42-329-31779	CARLOW CORP.	Oil	31099
42-329-31780	OGS OPERATING COMPANY, INC.	Oil	40452
42-329-31781	PIONEER NATURAL RES. USA, INC.	Oil	31163
42-329-31782	PIONEER NATURAL RES. USA, INC.	Oil	31077
42-329-31783	PIONEER NATURAL RES. USA, INC.	Oil	31077
42-329-31784	PIONEER NATURAL RES. USA, INC.	Oil	31077
42-329-31785	PIONEER NATURAL RES. USA, INC.	Oil	31151
42-329-31786	PIONEER NATURAL RES. USA, INC.	Oil	31164
42-329-31787	PIONEER NATURAL RES. USA, INC.	Oil	24963
42-329-31788	PIONEER NATURAL RES. USA, INC.	Oil	31077
42-329-31789	PIONEER NATURAL RES. USA, INC.	Oil	33727
42-329-31790	Parker & Parsley Development Co.	Oil	31202
42-329-31791	PIONEER NATURAL RES. USA, INC.	Oil	31078
42-329-31792	PIONEER NATURAL RES. USA, INC.	Oil	31101
42-329-31793	PIONEER NATURAL RES. USA, INC.	Oil	31100
42-329-31794	Parker & Parsley Development Co.	Oil	33730
42-329-31795	PIONEER NATURAL RES. USA, INC.	Oil	31085
42-329-31796	PIONEER NATURAL RES. USA, INC.	Oil	31075
42-329-31797	PIONEER NATURAL RES. USA, INC.	Oil	31075
42-329-31798	PIONEER NATURAL RES. USA, INC.	Oil	31075
42-329-31799	PIONEER NATURAL RES. USA, INC.	Oil	31075
42-329-31800	PIONEER NATURAL RES. USA, INC.	Oil	23365
42-329-31801	MLC CO., INC.	Oil	32258
42-329-31802	PIONEER NATURAL RES. USA, INC.	Oil	31430
42-329-31803	PIONEER NATURAL RES. USA, INC.	Oil	31222
42-329-31804	PIONEER NATURAL RES. USA, INC.	Oil	31075
42-329-31805	PIONEER NATURAL RES. USA, INC.	Oil	31075
42-329-31806	PIONEER NATURAL RES. USA, INC.	Oil	31228
42-329-31807	PIONEER NATURAL RES. USA, INC.	Oil	31228
42-329-31808	PIONEER NATURAL RES. USA, INC.	Oil	31135
42-329-31809	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-31810	PIONEER NATURAL RES. USA, INC.	Oil	30833
42-329-31811	Legacy Reserves Operating LP	Oil	31482
42-329-31812	PIONEER NATURAL RES. USA, INC.	Oil	31227
42-329-31813	PIONEER NATURAL RES. USA, INC.	Oil	31229
42-329-31814	PIONEER NATURAL RES. USA, INC.	Oil	31243
42-329-31815	PERMIAN DEEP ROCK OIL CO., LLC	Oil	31325
42-329-31816	PIONEER NATURAL RES. USA, INC.	Oil	31335
42-329-31817	PIONEER NATURAL RES. USA, INC.	Oil	31335
42-329-31818	Parker & Parsley Development Co.	Oil	21085
42-329-31819	PIONEER NATURAL RES. USA, INC.	Oil	33707
42-329-31820	PIONEER NATURAL RES. USA, INC.	Oil	31235
42-329-31821	PIONEER NATURAL RES. USA, INC.	Oil	31052
42-329-31822	PIONEER NATURAL RES. USA, INC.	Oil	31554
42-329-31823	PIONEER NATURAL RES. USA, INC.	Oil	31245
42-329-31824	PIONEER NATURAL RES. USA, INC.	Oil	31554
42-329-31825	PIONEER NATURAL RES. USA, INC.	Oil	31235
42-329-31826	EXXON CORP.	Oil	06414
42-329-31827	Apache Corporation	Oil	23648
42-329-31828	Apache Corporation	Oil	06294
42-329-31829	Lario Oil & Gas Company	Oil	31409
42-329-31830
42-329-31831	Primary Fuels, Inc.
42-329-31832
42-329-31833	Primary Fuels, Inc.
42-329-31834	PIONEER NATURAL RES. USA, INC.	Oil	31622
42-329-31835	DIAMONDBACK E&P LLC	Oil	31336
42-329-31836	PARKER & PARSLEY PETROLEUM CO.
42-329-31837	DIAMONDBACK E&P LLC	Oil	31336
42-329-31838	DIAMONDBACK E&P LLC	Oil	31336
42-329-31839	ENDEAVOR ENERGY RESOURCES L.P.	Oil	31303
42-329-31840	BIT WELL SERVICE & CEMENTERS	Oil	31303
42-329-31841	PIONEER NATURAL RES. USA, INC.	Oil	30881
42-329-31842	ENDEAVOR ENERGY RESOURCES L.P.	Oil	31314
42-329-31843	ENERGEN RESOURCES CORPORATION	Oil	31324
42-329-31844	DE3 OPERATING LLC	Oil	31313
42-329-31845	DE3 OPERATING LLC	Oil	31312
42-329-31846	ENDEAVOR ENERGY RESOURCES L.P.	Oil	31366
42-329-31847	Texaco Inc.	Oil	31246
42-329-31848	PIONEER NATURAL RES. USA, INC.	Oil	31243
42-329-31849	CHEVRON U. S. A. INC.	Gas	163330
42-329-31850	GCO DRILLING COMPANY
42-329-31851	PIONEER NATURAL RES. USA, INC.	Oil	33729
42-329-31852	CHEVRON U. S. A. INC.	Oil	31443
42-329-31853	MOBIL PRODUCING TX. & N.M. INC.
42-329-31854	PIONEER NATURAL RES. USA, INC.	Oil	30791
42-329-31855	PIONEER NATURAL RES. USA, INC.	Oil	24963
42-329-31856	PIONEER NATURAL RES. USA, INC.	Oil	33728
42-329-31857	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-31858	PIONEER NATURAL RES. USA, INC.	Oil	31615
42-329-31859	SANTA FE MINERALS, INC.
42-329-31860	DIAMONDBACK E&P LLC	Oil	31481
42-329-31861	DIAMONDBACK E&P LLC	Oil	31356
42-329-31862	DIAMONDBACK E&P LLC	Oil	31356
42-329-31863	DIAMONDBACK E&P LLC	Oil	31380
42-329-31864	DIAMONDBACK E&P LLC	Oil	31380
42-329-31865	DIAMONDBACK E&P LLC	Oil	31380
42-329-31866	ENERGEN RESOURCES CORPORATION	Oil	31400
42-329-31867	DIAMONDBACK E&P LLC	Oil	31391
42-329-31869	ENERGEN RESOURCES CORPORATION	Oil	31874
42-329-31870	PIONEER NATURAL RES. USA, INC.	Oil	31401
42-329-31871	PIONEER NATURAL RES. USA, INC.	Oil	31429
42-329-31872	CHEVRON U. S. A. INC.	Oil	31574
42-329-31873	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-31874	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-31875	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-31876	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-31877	PARKER & PARSLEY PETROLEUM CO.
42-329-31878	PIONEER NATURAL RES. USA, INC.	Oil	31428
42-329-31879	PIONEER NATURAL RES. USA, INC.	Oil	31429
42-329-31880	PIONEER NATURAL RES. USA, INC.	Oil	31428
42-329-31881	PIONEER NATURAL RES. USA, INC.	Oil	31428
42-329-31882	PIONEER NATURAL RES. USA, INC.	Oil	31428
42-329-31883	PARKER & PARSLEY PETROLEUM CO.
42-329-31884	PIONEER NATURAL RES. USA, INC.	Oil	31412
42-329-31885	PIONEER NATURAL RES. USA, INC.	Oil	31645
42-329-31886	PIONEER NATURAL RES. USA, INC.	Oil	31421
42-329-31887	PIONEER NATURAL RES. USA, INC.	Oil	31421
42-329-31888	PIONEER NATURAL RES. USA, INC.	Oil	31411
42-329-31889
42-329-31890	PITTS ENERGY CO.	Oil	16419
42-329-31891	PIONEER NATURAL RES. USA, INC.	Oil	31475
42-329-31892	PIONEER NATURAL RES. USA, INC.	Oil	31439
42-329-31893	PIONEER NATURAL RES. USA, INC.	Oil	31534
42-329-31894	PIONEER NATURAL RES. USA, INC.	Oil	31524
42-329-31895	PIONEER NATURAL RES. USA, INC.	Oil	31524
42-329-31896	PIONEER NATURAL RES. USA, INC.	Oil	31524
42-329-31897	PIONEER NATURAL RES. USA, INC.	Oil	31544
42-329-31898	PIONEER NATURAL RES. USA, INC.	Oil	31544
42-329-31899	PIONEER NATURAL RES. USA, INC.	Oil	31555
42-329-31900	PIONEER NATURAL RES. USA, INC.	Oil	31631
42-329-31901	PIONEER NATURAL RES. USA, INC.	Oil	31631
42-329-31902	PIONEER NATURAL RES. USA, INC.	Oil	31562
42-329-31903	PARKER & PARSLEY PETROLEUM CO.
42-329-31904	BOLGER OPERATING CO.	Oil	28766
42-329-31905	PIONEER NATURAL RES. USA, INC.	Oil	31650
42-329-31906	PIONEER NATURAL RES. USA, INC.	Oil	31650
42-329-31907	DE3 OPERATING LLC	Oil	21990
42-329-31908	PIONEER NATURAL RES. USA, INC.	Oil	31590
42-329-31909	PIONEER NATURAL RES. USA, INC.	Oil	31647
42-329-31910	PIONEER NATURAL RES. USA, INC.	Oil	31647
42-329-31911	PIONEER NATURAL RES. USA, INC.	Oil	31657
42-329-31912	OXY USA WTP LP	Oil	15862
42-329-31913	PIONEER NATURAL RES. USA, INC.	Oil	31632
42-329-31914	PIONEER NATURAL RES. USA, INC.	Oil	31586
42-329-31915	PIONEER NATURAL RES. USA, INC.	Oil	31523
42-329-31916	PIONEER NATURAL RES. USA, INC.	Oil	31627
42-329-31917	DIAMONDBACK E&P LLC	Oil	31481
42-329-31918	PIONEER NATURAL RES. USA, INC.	Oil	31646
42-329-31919	PIONEER NATURAL RES. USA, INC.	Oil	31631
42-329-31920	DE3 OPERATING LLC	Oil	31605
42-329-31921	DE3 OPERATING LLC	Oil	31605
42-329-31922	PIONEER NATURAL RES. USA, INC.	Oil	31556
42-329-31923	PIONEER NATURAL RES. USA, INC.	Oil	31556
42-329-31924	PIONEER NATURAL RES. USA, INC.	Oil	31773
42-329-31925	Hunt Oil Company	Oil	06398
42-329-31926	ENDEAVOR ENERGY RESOURCES L.P.	Oil	31547
42-329-31927	PIONEER NATURAL RES. USA, INC.	Oil	31604
42-329-31928	PIONEER NATURAL RES. USA, INC.	Oil	31604
42-329-31929	PIONEER NATURAL RES. USA, INC.	Oil	31646
42-329-31930	PIONEER NATURAL RES. USA, INC.	Oil	31576
42-329-31931	PIONEER NATURAL RES. USA, INC.	Oil	31643
42-329-31932	PIONEER NATURAL RES. USA, INC.	Oil	67979
42-329-31933	PIONEER NATURAL RES. USA, INC.	Oil	31746
42-329-31934	PIONEER NATURAL RES. USA, INC.	Oil	31634
42-329-31935	PIONEER NATURAL RES. USA, INC.	Oil	31634
42-329-31936
42-329-31937	PERMIAN DEEP ROCK OIL CO., LLC	Oil	31743
42-329-31938	PARKER & PARSLEY PETROLEUM CO.
42-329-31939	PIONEER NATURAL RES. USA, INC.	Oil	31643
42-329-31940	PIONEER NATURAL RES. USA, INC.	Oil	31668
42-329-31941	PIONEER NATURAL RES. USA, INC.	Oil	31428
42-329-31942	PIONEER NATURAL RES. USA, INC.	Oil	31428
42-329-31943	PIONEER NATURAL RES. USA, INC.	Oil	31648
42-329-31944	PIONEER NATURAL RES. USA, INC.	Oil	31578
42-329-31945	PIONEER NATURAL RES. USA, INC.	Oil	31585
42-329-31946	PIONEER NATURAL RES. USA, INC.	Oil	31635
42-329-31947	PIONEER NATURAL RES. USA, INC.	Oil	31648
42-329-31948	PIONEER NATURAL RES. USA, INC.	Oil	31694
42-329-31949	PIONEER NATURAL RES. USA, INC.	Oil	31816
42-329-31950	MWJ PRODUCING COMPANY	Oil	31597
42-329-31951	PIONEER NATURAL RES. USA, INC.	Oil	31642
42-329-31952	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33817
42-329-31953	HILLIN PROD. CO.
42-329-31954	Lario Oil & Gas Company	Oil	35981
42-329-31955	PIONEER NATURAL RES. USA, INC.	Oil	31675
42-329-31956	PIONEER NATURAL RES. USA, INC.	Oil	31614
42-329-31957	DE3 OPERATING LLC	Oil	31616
42-329-31958	STEPHENS, AUTRY C.	Oil	33820
42-329-31959	PIONEER NATURAL RES. USA, INC.	Oil	31642
42-329-31960	PIONEER NATURAL RES. USA, INC.	Oil	31614
42-329-31961	DIAMONDBACK E&P LLC	Oil	31380
42-329-31962	DE3 OPERATING LLC	Oil	31664
42-329-31963	PIONEER NATURAL RES. USA, INC.	Oil	31694
42-329-31964	PIONEER NATURAL RES. USA, INC.	Oil	31721
42-329-31965	PARKER & PARSLEY PETROLEUM CO.
42-329-31966	DE3 OPERATING LLC	Oil	31697
42-329-31967	PARSLEY ENERGY OPERATIONS, LLC	Oil	31728
42-329-31968	PIONEER NATURAL RES. USA, INC.	Oil	31663
42-329-31969	PIONEER NATURAL RES. USA, INC.	Oil	31663
42-329-31970	PIONEER NATURAL RES. USA, INC.	Oil	31669
42-329-31971	PIONEER NATURAL RES. USA, INC.	Oil	31669
42-329-31972	PIONEER NATURAL RES. USA, INC.	Oil	31712
42-329-31973	PIONEER NATURAL RES. USA, INC.	Oil	31712
42-329-31974	PIONEER NATURAL RES. USA, INC.	Oil	31695
42-329-31975	DE3 OPERATING LLC	Oil	31697
42-329-31976	CHEVRON U. S. A. INC.	Oil	31246
42-329-31977	PIONEER NATURAL RES. USA, INC.	Oil	31695
42-329-31978	PIONEER NATURAL RES. USA, INC.	Oil	31736
42-329-31979	PIONEER NATURAL RES. USA, INC.	Oil	31736
42-329-31980	PIONEER NATURAL RES. USA, INC.	Oil	31859
42-329-31981	BOLGER OPERATING CO.	Oil	28561
42-329-31982	PIONEER NATURAL RES. USA, INC.	Oil	31092
42-329-31983	SUN EXPL. & PROD. CO.-MIDLAND
42-329-31984	OXY USA WTP LP	Oil	15862
42-329-31985	OXY USA WTP LP	Oil	15862
42-329-31986	PIONEER NATURAL RES. USA, INC.	Oil	31748
42-329-31987	DE3 OPERATING LLC	Oil	31881
42-329-31988	Cox, John L.	Gas	145712
42-329-31989	PIONEER NATURAL RES. USA, INC.	Oil	31938
42-329-31990	ENDEAVOR ENERGY RESOURCES L.P.	Oil	31814
42-329-31991	ENDEAVOR ENERGY RESOURCES L.P.	Oil	31814
42-329-31992	PIONEER NATURAL RES. USA, INC.	Oil	31938
42-329-31993	ENDEAVOR ENERGY RESOURCES L.P.	Oil	31547
42-329-31994	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-31995	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36783
42-329-31996	PIONEER NATURAL RES. USA, INC.	Oil	22584
42-329-31997	PIONEER NATURAL RES. USA, INC.	Oil	22584
42-329-31998	EXXON CORP.	Oil	31471
42-329-31999	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-32000	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-32001	EXXON CORP.	Oil	31471
42-329-32002	PIONEER NATURAL RES. USA, INC.	Oil	22059
42-329-32003	CHEVRON U. S. A. INC.	Oil	31246
42-329-32004	MLC CO., INC.
42-329-32005	ENDEAVOR ENERGY RESOURCES L.P.	Oil	32032
42-329-32006	PARKER & PARSLEY PETROLEUM CO.
42-329-32007	DAVIS & CARR ENERGY CO.	Oil	33427
42-329-32008	PIONEER NATURAL RES. USA, INC.	Oil	06462
42-329-32009	PIONEER NATURAL RES. USA, INC.	Oil	31954
42-329-32010	DE3 OPERATING LLC	Oil	31955
42-329-32011	DE3 OPERATING LLC	Oil	31955
42-329-32012	OXY USA WTP LP	Oil	15862
42-329-32013	OXY USA WTP LP	Oil	15862
42-329-32014	PIONEER NATURAL RES. USA, INC.	Oil	22059
42-329-32015	PARKER & PARSLEY PETROLEUM CO.	Oil	31925
42-329-32016	PARKER & PARSLEY PETROLEUM CO.
42-329-32017	PIONEER NATURAL RES. USA, INC.	Oil	31971
42-329-32018	PIONEER NATURAL RES. USA, INC.	Oil	31952
42-329-32019	PIONEER NATURAL RES. USA, INC.	Oil	31962
42-329-32020	PIONEER NATURAL RES. USA, INC.	Oil	31962
42-329-32021	PIONEER NATURAL RES. USA, INC.	Oil	31952
42-329-32022	PARKER & PARSLEY PETROLEUM CO.
42-329-32023
42-329-32024	OXY USA WTP LP	Oil	15862
42-329-32025	DE3 OPERATING LLC	Oil	32005
42-329-32026	PIONEER NATURAL RES. USA, INC.	Oil	31953
42-329-32027	PIONEER NATURAL RES. USA, INC.	Oil	31944
42-329-32028	PIONEER NATURAL RES. USA, INC.	Oil	31944
42-329-32029	PARKER & PARSLEY PETROLEUM CO.
42-329-32030	PIONEER NATURAL RES. USA, INC.	Oil	31998
42-329-32031	PIONEER NATURAL RES. USA, INC.	Oil	31998
42-329-32032	PIONEER NATURAL RES. USA, INC.	Oil	32041
42-329-32033	DE3 OPERATING LLC	Oil	32062
42-329-32034	PARKER & PARSLEY DEVELOPMENT L.P	Oil	32125
42-329-32035	PIONEER NATURAL RES. USA, INC.	Oil	32078
42-329-32036	STRATCO OPERATING CO., INC.	Oil	32045
42-329-32037	PIONEER NATURAL RES. USA, INC.	Oil	32110
42-329-32038	PIONEER NATURAL RES. USA, INC.	Oil	32110
42-329-32039	PIONEER NATURAL RES. USA, INC.	Oil	31944
42-329-32040	PIONEER NATURAL RES. USA, INC.	Oil	31944
42-329-32041	STEPHENS, AUTRY C.	Oil	12581
42-329-32042	PIONEER NATURAL RES. USA, INC.	Oil	32175
42-329-32043	PIONEER NATURAL RES. USA, INC.	Oil	32121
42-329-32044	TEMPO ENERGY, INC.	Oil	32048
42-329-32045	PIONEER NATURAL RES. USA, INC.	Oil	32117
42-329-32046	PIONEER NATURAL RES. USA, INC.	Oil	32115
42-329-32047
42-329-32048	Sun Exploration & Production Co.
42-329-32049	PIONEER NATURAL RES. USA, INC.	Oil	32135
42-329-32050	PIONEER NATURAL RES. USA, INC.	Oil	32064
42-329-32051	PIONEER NATURAL RES. USA, INC.	Oil	32064
42-329-32052	PARKER & PARSLEY PETROLEUM CO.
42-329-32053	NM-YATES PET.
42-329-32054	MOBIL PRODUCING TX. & N.M. INC.
42-329-32055	CHEVRON U. S. A. INC.	Oil	32075
42-329-32056	PIONEER NATURAL RES. USA, INC.	Oil	32134
42-329-32057	PIONEER NATURAL RES. USA, INC.	Oil	32134
42-329-32058	PIONEER NATURAL RES. USA, INC.	Oil	32220
42-329-32059	ENERGEN RESOURCES CORPORATION	Oil	32083
42-329-32060	PIONEER NATURAL RES. USA, INC.	Oil	32181
42-329-32061	PIONEER NATURAL RES. USA, INC.	Oil	32122
42-329-32062	PARKER & PARSLEY PETROLEUM CO.
42-329-32063	DE3 OPERATING LLC	Oil	32188
42-329-32064	PIONEER NATURAL RES. USA, INC.	Oil	32238
42-329-32065	PIONEER NATURAL RES. USA, INC.	Oil	32145
42-329-32066	OXY USA INC.
42-329-32067	OXY USA INC.
42-329-32068	OXY USA WTP LP	Oil	15862
42-329-32069
42-329-32070	OXY USA WTP LP	Oil	15862
42-329-32071	OXY USA WTP LP	Oil	15862
42-329-32072	OXY USA WTP LP	Oil	15862
42-329-32073	OXY USA INC.
42-329-32074	Legacy Reserves Operating LP	Gas	130532
42-329-32075	OXY USA WTP LP	Oil	31940
42-329-32076	OXY USA WTP LP	Oil	31940
42-329-32077	OXY USA WTP LP	Oil	31940
42-329-32078	PIONEER NATURAL RES. USA, INC.	Oil	32149
42-329-32079	PIONEER NATURAL RES. USA, INC.	Oil	32147
42-329-32080	PIONEER NATURAL RES. USA, INC.	Oil	32147
42-329-32081	DE3 OPERATING LLC	Oil	32206
42-329-32082	HANLEY PETROLEUM INC.	Oil	32252
42-329-32083	PIONEER NATURAL RES. USA, INC.	Oil	32467
42-329-32084	PIONEER NATURAL RES. USA, INC.	Oil	32144
42-329-32085	PIONEER NATURAL RES. USA, INC.	Oil	32235
42-329-32086	PIONEER NATURAL RES. USA, INC.	Oil	32222
42-329-32087	PIONEER NATURAL RES. USA, INC.	Oil	32225
42-329-32088	PIONEER NATURAL RES. USA, INC.	Oil	32237
42-329-32089	PIONEER NATURAL RES. USA, INC.	Oil	32174
42-329-32090	PIONEER NATURAL RES. USA, INC.	Oil	32239
42-329-32091	PIONEER NATURAL RES. USA, INC.	Oil	32248
42-329-32092	PIONEER NATURAL RES. USA, INC.	Oil	32236
42-329-32093	PIONEER NATURAL RES. USA, INC.	Oil	32243
42-329-32094	PIONEER NATURAL RES. USA, INC.	Oil	32207
42-329-32095	ENDEAVOR ENERGY RESOURCES L.P.	Oil	38615
42-329-32096	PARKER & PARSLEY PETROLEUM CO.
42-329-32097	LANGHAM PETROLEUM EXPL. CORP.	Oil	21903
42-329-32098	OXY USA WTP LP	Oil	31940
42-329-32099	DAVIS & CARR ENERGY CO.	Oil	32563
42-329-32100	XTO ENERGY INC.	Gas	133559
42-329-32101	CHEVRON U. S. A. INC.	Oil	32075
42-329-32102	OXY USA WTP LP	Oil	31940
42-329-32103	OXY USA INC.
42-329-32104
42-329-32105	OXY USA WTP LP	Oil	31940
42-329-32106	OXY USA INC.
42-329-32107	DE3 OPERATING LLC	Oil	32302
42-329-32108	TEXACO E & P INC.	Oil	32303
42-329-32109	Legacy Reserves Operating LP	Gas	131506
42-329-32110	MERIT ENERGY COMPANY	Oil	32252
42-329-32111	XTO ENERGY INC.	Oil	32295
42-329-32112	XTO ENERGY INC.	Oil	32293
42-329-32113
42-329-32114	XTO ENERGY INC.	Oil	32293
42-329-32115	MLC CO., INC.	Oil	32294
42-329-32116	XTO ENERGY INC.	Oil	32293
42-329-32117	Texaco Inc.
42-329-32118	MLC CO., INC.
42-329-32119	MIDKIFF, JOHN	Oil	32300
42-329-32120	XTO ENERGY INC.	Oil	32295
42-329-32121	ENERGAS COMPANY
42-329-32122	ENERGAS COMPANY
42-329-32123	XTO ENERGY INC.	Oil	32336
42-329-32124	XTO ENERGY INC.	Oil	32336
42-329-32125	XTO ENERGY INC.	Oil	32295
42-329-32126	XTO ENERGY INC.	Oil	32295
42-329-32127	XTO ENERGY INC.	Oil	32295
42-329-32128	XTO ENERGY INC.	Oil	32295
42-329-32129	XTO ENERGY INC.	Oil	32295
42-329-32130	XTO ENERGY INC.	Oil	32295
42-329-32131	XTO ENERGY INC.	Oil	32295
42-329-32132	XTO ENERGY INC.	Oil	32336
42-329-32133	XTO ENERGY INC.	Oil	32336
42-329-32134	XTO ENERGY INC.	Oil	32336
42-329-32135	XTO ENERGY INC.	Oil	32336
42-329-32136	XTO ENERGY INC.	Oil	32336
42-329-32137	XTO ENERGY INC.	Oil	32336
42-329-32138	ENDEAVOR ENERGY RESOURCES L.P.	Oil	39198
42-329-32139	PIONEER NATURAL RES. USA, INC.	Oil	32135
42-329-32140	PIONEER NATURAL RES. USA, INC.	Oil	24030
42-329-32141	PARSLEY ENERGY OPERATIONS, LLC	Oil	32458
42-329-32142	PIONEER NATURAL RES. USA, INC.	Oil	23961
42-329-32143	PIONEER NATURAL RES. USA, INC.	Oil	23961
42-329-32144	XTO ENERGY INC.	Oil	22040
42-329-32145	XTO ENERGY INC.	Oil	22040
42-329-32146	COG OPERATING LLC	Oil	28535
42-329-32147	PIONEER NATURAL RES. USA, INC.	Oil	32413
42-329-32148	PIONEER NATURAL RES. USA, INC.	Oil	22276
42-329-32149	PIONEER NATURAL RES. USA, INC.	Oil	22276
42-329-32150	XTO ENERGY INC.	Oil	32407
42-329-32151	XTO ENERGY INC.	Oil	32407
42-329-32152	XTO ENERGY INC.	Oil	32407
42-329-32153	XTO ENERGY INC.	Oil	32407
42-329-32154	XTO ENERGY INC.	Oil	32407
42-329-32155	XTO ENERGY INC.	Oil	32407
42-329-32156	XTO ENERGY INC.	Oil	32407
42-329-32157	XTO ENERGY INC.	Oil	32407
42-329-32158	XTO ENERGY INC.	Oil	32407
42-329-32159	PIONEER NATURAL RES. USA, INC.	Oil	32467
42-329-32160	PIONEER NATURAL RES. USA, INC.	Oil	32477
42-329-32161	PIONEER NATURAL RES. USA, INC.	Oil	32437
42-329-32162	XTO ENERGY INC.	Oil	32973
42-329-32163	PIONEER NATURAL RES. USA, INC.	Oil	32550
42-329-32164	PIONEER NATURAL RES. USA, INC.	Oil	33707
42-329-32165	XTO ENERGY INC.	Oil	32973
42-329-32166	XTO ENERGY INC.	Oil	32973
42-329-32167	MLC CO., INC.
42-329-32168	XTO ENERGY INC.	Oil	32973
42-329-32169	PIONEER NATURAL RES. USA, INC.	Oil	32465
42-329-32170	PIONEER NATURAL RES. USA, INC.	Oil	32461
42-329-32171	XTO ENERGY INC.	Oil	32973
42-329-32172	XTO ENERGY INC.	Oil	32973
42-329-32173	Phillips Petroleum Company
42-329-32174	DE3 OPERATING LLC	Oil	32463
42-329-32175	PIONEER NATURAL RES. USA, INC.	Oil	23365
42-329-32176	COG OPERATING LLC	Oil	04116
42-329-32177	PIONEER NATURAL RES. USA, INC.	Oil	32464
42-329-32178	El Paso Natural Gas Company
42-329-32179	DE3 OPERATING LLC	Oil	32498
42-329-32180	SAMEDAN OIL CORPORATION
42-329-32181	MOBIL PRODUCING TX. & N.M. INC.	Gas	172691
42-329-32182	OXY USA WTP LP	Oil	15862
42-329-32183	OXY USA WTP LP	Oil	15862
42-329-32184	OXY USA WTP LP	Oil	15862
42-329-32185	OXY USA WTP LP	Oil	15862
42-329-32186	OXY USA WTP LP	Oil	15862
42-329-32187	OXY USA WTP LP	Oil	15862
42-329-32188	PIONEER NATURAL RES. USA, INC.	Oil	32562
42-329-32189	PIONEER NATURAL RES. USA, INC.	Oil	32511
42-329-32190	El Paso Natural Gas Company
42-329-32191	COG OPERATING LLC	Oil	32566
42-329-32192	DE3 OPERATING LLC	Oil	32507
42-329-32193	LONE STAR GAS CO.
42-329-32194	ENDEAVOR ENERGY RESOURCES L.P.	Oil	32382
42-329-32195	ENDEAVOR ENERGY RESOURCES L.P.	Oil	32602
42-329-32196	ENDEAVOR ENERGY RESOURCES L.P.	Oil	32602
42-329-32197	PIONEER NATURAL RES. USA, INC.	Oil	32529
42-329-32198	PIONEER NATURAL RES. USA, INC.	Oil	32529
42-329-32199	DE3 OPERATING LLC	Oil	32560
42-329-32200	XTO ENERGY INC.	Oil	32643
42-329-32201	PIONEER NATURAL RES. USA, INC.	Oil	32598
42-329-32202	PIONEER NATURAL RES. USA, INC.	Oil	32598
42-329-32203	PIONEER NATURAL RES. USA, INC.	Oil	32644
42-329-32204	XTO ENERGY INC.	Oil	12835
42-329-32205	PIONEER NATURAL RES. USA, INC.	Oil	32596
42-329-32206	PIONEER NATURAL RES. USA, INC.	Oil	32558
42-329-32207	COG OPERATING LLC	Oil	05637
42-329-32208	COG OPERATING LLC	Oil	05637
42-329-32209	PIONEER NATURAL RES. USA, INC.	Oil	32601
42-329-32210	Great Western Drilling Company	Oil	33736
42-329-32211	PIONEER NATURAL RES. USA, INC.	Oil	32601
42-329-32212	PIONEER NATURAL RES. USA, INC.	Oil	32623
42-329-32213
42-329-32214	XTO ENERGY INC.	Gas	137055
42-329-32215	XTO ENERGY INC.	Gas	137054
42-329-32216	XTO ENERGY INC.	Gas	138177
42-329-32217	XTO ENERGY INC.	Gas	138178
42-329-32218	Cox, John L.	Oil	40400
42-329-32219	NORTHSTAR OPERATING COMPANY	Oil	19171
42-329-32220	DIAMONDBACK E&P LLC	Oil	32168
42-329-32221	ENDEAVOR ENERGY RESOURCES L.P.	Oil	32394
42-329-32222	COG OPERATING LLC	Oil	01178
42-329-32223	COG OPERATING LLC	Oil	15143
42-329-32224	COG OPERATING LLC	Oil	01178
42-329-32225	OXY USA WTP LP	Oil	31940
42-329-32226	OXY USA WTP LP	Oil	31940
42-329-32227	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32228	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32229	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32230	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32231	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32232	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32233	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32234	PIONEER NATURAL RES. USA, INC.	Oil	32656
42-329-32235	ENERGAS COMPANY
42-329-32236	ENERGAS COMPANY
42-329-32237	ENERGAS COMPANY
42-329-32238	PIONEER NATURAL RES. USA, INC.	Oil	32856
42-329-32239	PIONEER NATURAL RES. USA, INC.	Oil	32836
42-329-32240	PIONEER NATURAL RES. USA, INC.	Oil	32802
42-329-32241	PIONEER NATURAL RES. USA, INC.	Oil	32670
42-329-32242	PIONEER NATURAL RES. USA, INC.	Oil	32653
42-329-32243	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32244	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32245	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32246	PIONEER NATURAL RES. USA, INC.	Oil	32657
42-329-32247	PARKER & PARSLEY, LTD.
42-329-32248	PARKER & PARSLEY, LTD.
42-329-32249	Henry Petroleum Corp.	Oil	32775
42-329-32250	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32251	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32252	DAVIS & CARR ENERGY CO.
42-329-32253	THOMPSON, J. CLEO	Oil	32814
42-329-32254	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32255	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32256	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-32257	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-32258	Apache Corporation	Oil	06294
42-329-32259	Apache Corporation	Oil	06294
42-329-32260	Apache Corporation	Oil	06310
42-329-32261	El Paso Natural Gas Company
42-329-32262	Henry Petroleum Corp.	Oil	32974
42-329-32263	DE3 OPERATING LLC	Oil	32837
42-329-32264	SOUTHWEST ROYALTIES, INC.	Gas	216552
42-329-32265	DE3 OPERATING LLC	Oil	32830
42-329-32266	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-32267	ENDEAVOR ENERGY RESOURCES L.P.	Oil	32871
42-329-32268	PIONEER NATURAL RES. USA, INC.	Oil	32850
42-329-32269	PIONEER NATURAL RES. USA, INC.	Oil	32858
42-329-32270	PIONEER NATURAL RES. USA, INC.	Oil	32895
42-329-32271	ENDEAVOR ENERGY RESOURCES L.P.	Oil	32844
42-329-32272	WALTER EXPLORATION COMPANY	Oil	20392
42-329-32273	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-32274	PIONEER NATURAL RES. USA, INC.	Oil	06521
42-329-32275	PIONEER NATURAL RES. USA, INC.	Oil	32881
42-329-32276	PIONEER NATURAL RES. USA, INC.	Oil	32875
42-329-32277
42-329-32278	PIONEER NATURAL RES. USA, INC.	Oil	32885
42-329-32279	PIONEER NATURAL RES. USA, INC.	Oil	32874
42-329-32280	PIONEER NATURAL RES. USA, INC.	Oil	32901
42-329-32281	BOLGER OPERATING CO.	Oil	28766
42-329-32282	PIONEER NATURAL RES. USA, INC.	Oil	32991
42-329-32283	ATLANTIC OPERATING, INC.	Oil	39181
42-329-32284	ATLANTIC OPERATING, INC.	Oil	39185
42-329-32285	PIONEER NATURAL RES. USA, INC.	Oil	32937
42-329-32286	PIONEER NATURAL RES. USA, INC.	Oil	33133
42-329-32287	DACOTT OIL & GAS, LLC	Oil	32913
42-329-32288	DE3 OPERATING LLC	Oil	23060
42-329-32289	Henry Petroleum Corp.
42-329-32290	PIONEER NATURAL RES. USA, INC.	Oil	32894
42-329-32291	PIONEER NATURAL RES. USA, INC.	Oil	33009
42-329-32292	PIONEER NATURAL RES. USA, INC.	Oil	33011
42-329-32293	PIONEER NATURAL RES. USA, INC.	Oil	33077
42-329-32294	PIONEER NATURAL RES. USA, INC.	Oil	32912
42-329-32295	PIONEER NATURAL RES. USA, INC.	Oil	32923
42-329-32296	PIONEER NATURAL RES. USA, INC.	Oil	33011
42-329-32297	ENDEAVOR ENERGY RESOURCES L.P.	Oil	29541
42-329-32298	ENDEAVOR ENERGY RESOURCES L.P.	Oil	29561
42-329-32299	DACOTT OIL & GAS, LLC	Oil	32913
42-329-32300	DE3 OPERATING LLC	Oil	32997
42-329-32301	DE3 OPERATING LLC	Oil	32997
42-329-32302	DE3 OPERATING LLC	Oil	32942
42-329-32303	DE3 OPERATING LLC	Oil	32942
42-329-32304	Apache Corporation	Oil	34421
42-329-32305	PIONEER NATURAL RES. USA, INC.	Oil	32910
42-329-32306	Legacy Reserves Operating LP	Oil	33001
42-329-32307	PIONEER NATURAL RES. USA, INC.	Oil	32946
42-329-32308	PIONEER NATURAL RES. USA, INC.	Oil	32986
42-329-32309	PIONEER NATURAL RES. USA, INC.	Oil	32941
42-329-32310	PIONEER NATURAL RES. USA, INC.	Oil	32931
42-329-32311	XTO ENERGY INC.	Oil	32943
42-329-32312	Legacy Reserves Operating LP	Oil	33001
42-329-32313	Legacy Reserves Operating LP	Oil	33001
42-329-32314	XTO ENERGY INC.	Oil	32944
42-329-32315	PIONEER NATURAL RES. USA, INC.	Oil	33060
42-329-32316
42-329-32317	PIONEER NATURAL RES. USA, INC.	Oil	33098
42-329-32318	PIONEER NATURAL RES. USA, INC.	Oil	33035
42-329-32319	PIONEER NATURAL RES. USA, INC.	Oil	32932
42-329-32320	PIONEER NATURAL RES. USA, INC.	Oil	33034
42-329-32321	DE3 OPERATING LLC	Oil	33099
42-329-32322	PIONEER NATURAL RES. USA, INC.	Oil	33016
42-329-32323	PIONEER NATURAL RES. USA, INC.	Oil	32972
42-329-32324	PIONEER NATURAL RES. USA, INC.	Oil	32989
42-329-32325	THOMPSON, J. CLEO	Oil	33086
42-329-32326
42-329-32327	PIONEER NATURAL RES. USA, INC.	Oil	33047
42-329-32328	PIONEER NATURAL RES. USA, INC.	Oil	33018
42-329-32330	PIONEER NATURAL RES. USA, INC.	Oil	33010
42-329-32331	Hunt Oil Company	Oil	32992
42-329-32332	Hunt Oil Company	Oil	06398
42-329-32333	PIONEER NATURAL RES. USA, INC.	Oil	33010
42-329-32334	PIONEER NATURAL RES. USA, INC.	Oil	32990
42-329-32335	PIONEER NATURAL RES. USA, INC.	Oil	33017
42-329-32336	PIONEER NATURAL RES. USA, INC.	Oil	33015
42-329-32337	PIONEER NATURAL RES. USA, INC.	Oil	29372
42-329-32338	ARKLAND PRODUCING CO., INC.	Oil	33093
42-329-32339	PIONEER NATURAL RES. USA, INC.	Oil	33041
42-329-32340	PIONEER NATURAL RES. USA, INC.	Oil	28949
42-329-32341	PIONEER NATURAL RES. USA, INC.	Gas	287254
42-329-32342	PIONEER NATURAL RES. USA, INC.	Gas	287321
42-329-32343	PIONEER NATURAL RES. USA, INC.	Oil	33118
42-329-32344	Legacy Reserves Operating LP	Oil	33058
42-329-32345	PIONEER NATURAL RES. USA, INC.	Oil	33087
42-329-32346	CHEVRON U. S. A. INC.	Oil	22343
42-329-32347	CHEVRON U. S. A. INC.	Oil	22343
42-329-32348	DE3 OPERATING LLC	Oil	33197
42-329-32349	PIONEER NATURAL RES. USA, INC.	Oil	33021
42-329-32350	CHEVRON U. S. A. INC.	Oil	32075
42-329-32351	CHEVRON U. S. A. INC.	Oil	32075
42-329-32352	CHEVRON U. S. A. INC.	Oil	32075
42-329-32353	CHEVRON U. S. A. INC.	Oil	32075
42-329-32354	CHEVRON U. S. A. INC.	Oil	32075
42-329-32355	CHEVRON U. S. A. INC.	Oil	32075
42-329-32356	CHEVRON U. S. A. INC.	Oil	22343
42-329-32357	PIONEER NATURAL RES. USA, INC.	Oil	33132
42-329-32358	XTO ENERGY INC.	Oil	32944
42-329-32359	PIONEER NATURAL RES. USA, INC.	Oil	33051
42-329-32360	PIONEER NATURAL RES. USA, INC.	Oil	33079
42-329-32361	DE3 OPERATING LLC	Oil	33074
42-329-32362	PIONEER NATURAL RES. USA, INC.	Oil	33161
42-329-32363	PIONEER NATURAL RES. USA, INC.	Oil	33079
42-329-32364	PIONEER NATURAL RES. USA, INC.	Oil	31421
42-329-32365	DE3 OPERATING LLC	Oil	33189
42-329-32366	DE3 OPERATING LLC	Oil	33191
42-329-32367	PIONEER NATURAL RES. USA, INC.	Oil	33185
42-329-32368	XTO ENERGY INC.	Oil	32943
42-329-32369	PIONEER NATURAL RES. USA, INC.	Oil	33072
42-329-32370	PIONEER NATURAL RES. USA, INC.	Oil	33177
42-329-32371	PIONEER NATURAL RES. USA, INC.	Oil	31151
42-329-32372	PIONEER NATURAL RES. USA, INC.	Oil	33190
42-329-32373	DE3 OPERATING LLC	Oil	33085
42-329-32374	DE3 OPERATING LLC	Oil	33085
42-329-32375	PIONEER NATURAL RES. USA, INC.	Oil	33292
42-329-32376	PIONEER NATURAL RES. USA, INC.	Oil	29464
42-329-32377	PIONEER NATURAL RES. USA, INC.	Oil	33102
42-329-32378	XTO ENERGY INC.	Oil	33173
42-329-32379	XTO ENERGY INC.	Oil	33194
42-329-32380	XTO ENERGY INC.	Oil	33194
42-329-32381	XTO ENERGY INC.	Oil	32944
42-329-32382	ENDEAVOR ENERGY RESOURCES L.P.	Oil	29561
42-329-32383	PIONEER NATURAL RES. USA, INC.	Oil	33134
42-329-32384	PIONEER NATURAL RES. USA, INC.	Oil	33147
42-329-32385	ENERGAS COMPANY
42-329-32386	ENERGAS COMPANY
42-329-32387	XTO ENERGY INC.	Oil	32944
42-329-32388	XTO ENERGY INC.	Oil	32943
42-329-32389	XTO ENERGY INC.	Oil	32943
42-329-32390	XTO ENERGY INC.	Oil	32943
42-329-32391	THOMPSON, J. CLEO	Oil	32814
42-329-32392	PIONEER NATURAL RES. USA, INC.	Oil	33322
42-329-32393	CHEVRON U. S. A. INC.	Oil	32075
42-329-32394	CHEVRON U. S. A. INC.	Oil	22343
42-329-32395	CHEVRON U. S. A. INC.	Oil	22343
42-329-32396	MOBIL PIPE LINE COMPANY
42-329-32397	XTO ENERGY INC.	Oil	32944
42-329-32398	PIONEER NATURAL RES. USA, INC.	Oil	06427
42-329-32399	XTO ENERGY INC.	Oil	32944
42-329-32400	PIONEER NATURAL RES. USA, INC.	Oil	06427
42-329-32401	PIONEER NATURAL RES. USA, INC.	Oil	06427
42-329-32402	AMERICAN PETROFINA PIPE LINE CO.
42-329-32403	DE3 OPERATING LLC	Oil	22416
42-329-32404	DE3 OPERATING LLC	Oil	22347
42-329-32405	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32406	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32407	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32408	OXY USA WTP LP	Oil	15862
42-329-32409	OXY USA WTP LP	Oil	31940
42-329-32410	OXY USA WTP LP	Oil	31940
42-329-32411	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32412	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32413	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32414	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32415	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32416	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32417	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32418	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32419	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32420	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32421	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-32422	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-32423	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-32424	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32425	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32426	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32427	EXXON CORP.
42-329-32428	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32429	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32430	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32431	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32432	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32433	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32434	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32435	DE3 OPERATING LLC	Oil	33231
42-329-32436	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32437	JM COX RESOURCES, L.P.	Oil	40397
42-329-32438	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32439	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32440	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32441	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32442	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32443	DACOTT OIL & GAS, LLC	Oil	32913
42-329-32444	DACOTT OIL & GAS, LLC	Oil	40360
42-329-32445	TORCH OPERATING COMPANY
42-329-32446	THOMPSON, J. CLEO	Oil	33086
42-329-32447	DACOTT OIL & GAS, LLC	Oil	32913
42-329-32448	Legacy Reserves Operating LP	Oil	33058
42-329-32449	DACOTT OIL & GAS, LLC	Oil	40361
42-329-32450	DACOTT OIL & GAS, LLC	Oil	32913
42-329-32451	DACOTT OIL & GAS, LLC	Oil	32913
42-329-32452	CHEVRON U. S. A. INC.	Oil	35259
42-329-32453	OXY USA WTP LP	Oil	15862
42-329-32454	PIONEER NATURAL RES. USA, INC.	Oil	33304
42-329-32455	PIONEER NATURAL RES. USA, INC.	Oil	33304
42-329-32456	OXY USA INC.
42-329-32457	WAGNER & BROWN, LTD.	Gas	263997
42-329-32458	Southland Royalty Company
42-329-32459	PIONEER NATURAL RES. USA, INC.	Oil	33323
42-329-32460	COG OPERATING LLC	Oil	01178
42-329-32461	COG OPERATING LLC	Gas	199407
42-329-32462	COG OPERATING LLC	Oil	01178
42-329-32463	COG OPERATING LLC	Oil	15038
42-329-32464	COG OPERATING LLC	Oil	01178
42-329-32465	COG OPERATING LLC	Oil	15528
42-329-32466	COG OPERATING LLC	Oil	15143
42-329-32467	DE3 OPERATING LLC	Oil	33386
42-329-32468	PIONEER NATURAL RES. USA, INC.	Oil	33349
42-329-32469	DE3 OPERATING LLC	Oil	33342
42-329-32470	PIONEER NATURAL RES. USA, INC.	Oil	33430
42-329-32471	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06562
42-329-32472	DE3 OPERATING LLC	Oil	33325
42-329-32473	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33412
42-329-32474	DE3 OPERATING LLC	Oil	33328
42-329-32475	XTO ENERGY INC.	Oil	35321
42-329-32476	XTO ENERGY INC.	Oil	33404
42-329-32477	PARSLEY ENERGY OPERATIONS, LLC	Oil	33348
42-329-32478	JM COX RESOURCES, L.P.	Oil	22210
42-329-32479	DE3 OPERATING LLC	Oil	33383
42-329-32480	DE3 OPERATING LLC	Oil	33360
42-329-32481	PARSLEY ENERGY OPERATIONS, LLC	Oil	33374
42-329-32482	PARSLEY ENERGY OPERATIONS, LLC	Oil	33363
42-329-32483	DE3 OPERATING LLC	Oil	33384
42-329-32484	PARSLEY ENERGY OPERATIONS, LLC	Oil	33375
42-329-32485	PIONEER NATURAL RES. USA, INC.	Oil	33357
42-329-32486	DE3 OPERATING LLC	Oil	33372
42-329-32487	PARSLEY ENERGY OPERATIONS, LLC	Oil	33373
42-329-32488	Parker & Parsley Development Co.
42-329-32489	DE3 OPERATING LLC	Oil	33337
42-329-32490	DE3 OPERATING LLC	Oil	33432
42-329-32491	DE3 OPERATING LLC	Oil	33356
42-329-32492	CHEVRON U. S. A. INC.	Oil	32075
42-329-32493	CHEVRON U. S. A. INC.	Oil	32075
42-329-32494	TEXACO E & P INC.
42-329-32495	TEXACO E & P INC.	Oil	34103
42-329-32496	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32497	PIONEER NATURAL RES. USA, INC.	Oil	33408
42-329-32498	MWJ PRODUCING COMPANY
42-329-32499	MWJ PRODUCING COMPANY
42-329-32500	PIONEER NATURAL RES. USA, INC.	Oil	33413
42-329-32501	XTO ENERGY INC.	Oil	33404
42-329-32502	PARSLEY ENERGY OPERATIONS, LLC	Oil	33376
42-329-32503	PIONEER NATURAL RES. USA, INC.	Oil	33428
42-329-32504	DE3 OPERATING LLC	Oil	33394
42-329-32505	V-F PETROLEUM INC.	Oil	33425
42-329-32506	PIONEER NATURAL RES. USA, INC.	Oil	33444
42-329-32507	PIONEER NATURAL RES. USA, INC.	Oil	33419
42-329-32508	PIONEER NATURAL RES. USA, INC.	Oil	33444
42-329-32509	PIONEER NATURAL RES. USA, INC.	Oil	33439
42-329-32510	PIONEER NATURAL RES. USA, INC.	Oil	33439
42-329-32511	PIONEER NATURAL RES. USA, INC.	Oil	33439
42-329-32512	DE3 OPERATING LLC	Oil	33443
42-329-32513	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-32514	PIONEER NATURAL RES. USA, INC.	Oil	33437
42-329-32515	PIONEER NATURAL RES. USA, INC.	Oil	33406
42-329-32516	PIONEER NATURAL RES. USA, INC.	Oil	33406
42-329-32517	PIONEER NATURAL RES. USA, INC.	Oil	33406
42-329-32518	PIONEER NATURAL RES. USA, INC.	Oil	33406
42-329-32519	XTO ENERGY INC.	Oil	33404
42-329-32520	XTO ENERGY INC.	Oil	33404
42-329-32521	XTO ENERGY INC.	Oil	33404
42-329-32522	XTO ENERGY INC.	Oil	33404
42-329-32523	PIONEER NATURAL RES. USA, INC.	Oil	33453
42-329-32524	PIONEER NATURAL RES. USA, INC.	Oil	33474
42-329-32525	PIONEER NATURAL RES. USA, INC.	Oil	33406
42-329-32526	Parker & Parsley Development Co.
42-329-32527	PIONEER NATURAL RES. USA, INC.	Oil	33461
42-329-32528	PIONEER NATURAL RES. USA, INC.	Oil	33474
42-329-32529	COG OPERATING LLC	Oil	39576
42-329-32530	WTG EXPLORATION	Oil	33772
42-329-32531	PIONEER NATURAL RES. USA, INC.	Oil	33454
42-329-32532	DESERT PRODUCTION, INC.	Oil	33441
42-329-32533	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32534	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32535	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32536	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32537	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32538	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32539	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32540	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32541	SAMEDAN OIL CORPORATION
42-329-32542	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32543	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32544	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32545	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32546	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32547	PATTERSON PETROLEUM LP	Oil	33481
42-329-32548	PIONEER NATURAL RES. USA, INC.	Oil	33492
42-329-32549	PIONEER NATURAL RES. USA, INC.	Oil	33468
42-329-32550	PIONEER NATURAL RES. USA, INC.	Oil	33468
42-329-32551	PIONEER NATURAL RES. USA, INC.	Oil	33468
42-329-32552	DESERT PRODUCTION, INC.	Oil	33440
42-329-32553	PIONEER NATURAL RES. USA, INC.	Oil	33323
42-329-32554	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32555	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32556	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32557	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32558	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32559	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32560	QUALIA, C. F. OPERATING,INC.	Oil	33808
42-329-32561	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32562	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32563	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32564	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32565	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32566	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32567	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32568	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32569	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32570	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32571	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32572	PIONEER NATURAL RES. USA, INC.	Oil	33492
42-329-32573	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32574	PIONEER NATURAL RES. USA, INC.	Oil	33492
42-329-32575	Placid Oil Company	Oil	33593
42-329-32576	Henry Petroleum Corp.	Oil	33512
42-329-32577	Henry Petroleum Corp.	Oil	33524
42-329-32578	Henry Petroleum Corp.	Oil	33524
42-329-32579	Legacy Reserves Operating LP	Oil	34007
42-329-32580	PIONEER NATURAL RES. USA, INC.	Oil	33461
42-329-32581	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32582	ENERGAS COMPANY
42-329-32583	ENERGAS COMPANY
42-329-32584	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32585	Parker & Parsley Development Co.
42-329-32586	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32587	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32588	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32589	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32590	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32591	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32592	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32593	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32594	Legacy Reserves Operating LP	Oil	33548
42-329-32595	Legacy Reserves Operating LP	Oil	33609
42-329-32596	Legacy Reserves Operating LP	Oil	33587
42-329-32597	Legacy Reserves Operating LP	Oil	33609
42-329-32598	Legacy Reserves Operating LP	Oil	33587
42-329-32599	XTO ENERGY INC.	Oil	32455
42-329-32600	PIONEER NATURAL RES. USA, INC.	Oil	32973
42-329-32601	Henry Petroleum Corp.	Oil	33535
42-329-32602	Legacy Reserves Operating LP	Oil	33590
42-329-32603	Legacy Reserves Operating LP	Oil	33590
42-329-32604	OXY USA WTP LP	Oil	15862
42-329-32605	Legacy Reserves Operating LP	Oil	33591
42-329-32606	Legacy Reserves Operating LP	Oil	39187
42-329-32607	Legacy Reserves Operating LP	Oil	33586
42-329-32608	Legacy Reserves Operating LP	Oil	33586
42-329-32609	Legacy Reserves Operating LP	Oil	33586
42-329-32610	Henry Petroleum Corp.	Oil	33535
42-329-32611	El Paso Natural Gas Company
42-329-32612	SAHARA OPERATING COMPANY
42-329-32613	COG OPERATING LLC	Oil	33588
42-329-32614	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32615	QUALIA, C. F. OPERATING,INC.
42-329-32616	Legacy Reserves Operating LP	Oil	20998
42-329-32617	MOBIL PIPE LINE COMPANY
42-329-32618	Legacy Reserves Operating LP	Oil	33591
42-329-32619	Parker & Parsley Development Co.	Oil	21487
42-329-32620	SHELL PIPE LINE CORPORATION
42-329-32621	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32622	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32623	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32624	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32625	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32626	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32627	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32628	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32629	HENRY PETROLEUM LP	Oil	33619
42-329-32630	COG OPERATING LLC	Oil	33623
42-329-32631	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32632	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32633	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32634	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32635	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32636	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-32637	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32638	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32639	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32640	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32641	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-32642	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-32643	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32644	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32645	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32646	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-32647	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-32648	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32649	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32650	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32651	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32652	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32653	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32654	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33613
42-329-32655	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32656	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32657	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32658	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32659	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32660	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32661	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32662	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32663	DESERT PRODUCTION, INC.	Oil	33440
42-329-32664	DESERT PRODUCTION, INC.	Oil	33441
42-329-32665	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33574
42-329-32666	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32667	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32668	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32669	Citation Oil & Gas Corp.	Oil	33622
42-329-32670	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32671	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32672	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32673	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32674	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32675	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32676	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32677	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32678	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32679	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32680	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32681	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32682	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32683	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32684	Legacy Reserves Operating LP	Oil	33548
42-329-32685	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32686	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32687	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32688	HENRY PETROLEUM LP	Oil	33768
42-329-32689	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32690	ENERGAS COMPANY
42-329-32691	ENERGAS COMPANY
42-329-32692	ENERGAS COMPANY
42-329-32693	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32694	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32695	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32696	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32697	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32698	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32699	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32700	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33574
42-329-32701	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32702	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32703	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32704	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32705	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32706	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32707	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32708	DESERT PRODUCTION, INC.	Oil	33441
42-329-32709	DESERT PRODUCTION, INC.	Oil	33440
42-329-32710	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32711	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32712	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32713	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32714	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32715
42-329-32716	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32717	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32718	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32719	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32720	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32721	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32723	Legacy Reserves Operating LP	Oil	33797
42-329-32724	MOBIL PRODUCING TX. & N.M. INC.	Oil	04116
42-329-32725	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32726	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32727	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32728
42-329-32729	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32730
42-329-32731	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32732	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32733	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32734	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32735	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32736	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32737	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32738	ALTURA ENERGY LTD.	Oil	42987
42-329-32739	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32740	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32741	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32742	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32743	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32744	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32745	DESERT PRODUCTION, INC.	Oil	33440
42-329-32746	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32747	DESERT PRODUCTION, INC.	Oil	33440
42-329-32748	DESERT PRODUCTION, INC.	Oil	33440
42-329-32749	DESERT PRODUCTION, INC.	Oil	33440
42-329-32750	DESERT PRODUCTION, INC.	Oil	33440
42-329-32751	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32752	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32753	DIAMONDBACK E&P LLC	Oil	16417
42-329-32754	DIAMONDBACK E&P LLC	Oil	16363
42-329-32755	Parker & Parsley Development Co.
42-329-32756	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32757	Parker & Parsley Development Co.
42-329-32758	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32759	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32760	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32761	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32762	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32763	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32764	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32765	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32766	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32767	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32768	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32769	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-32770	TRAIL MOUNTAIN, INC.
42-329-32771	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-32772	CROWNQUEST OPERATING, LLC	Oil	33763
42-329-32773	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-32774	DE3 OPERATING LLC	Oil	33778
42-329-32775	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32776	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32777	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32778	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32779	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32780	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32781	PLAINS PETROLEUM OPERATING CO.
42-329-32782	PLAINS PETROLEUM OPERATING CO.
42-329-32783	PLAINS PETROLEUM OPERATING CO.
42-329-32784	PLAINS PETROLEUM OPERATING CO.
42-329-32785	PLAINS PETROLEUM OPERATING CO.
42-329-32786	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32787	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32788	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32789	Legacy Reserves Operating LP	Oil	20998
42-329-32790	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32791	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-32792	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32793	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32794	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32795	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32796	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32797	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32798	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33574
42-329-32799	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32800	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32801	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32802	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32803	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32804	OXY USA INC.	Oil	34642
42-329-32805	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32806	Apache Corporation	Oil	06309
42-329-32807	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33871
42-329-32808	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32809	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32810	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32811	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32812	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32813	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32814	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32815	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32816	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32817	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32818	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32819	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32820	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32821	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32822	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32823	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32824	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32825	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32826	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32827	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32828	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32829	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32830	Parker & Parsley Development Co.
42-329-32831	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32832	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32833	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32834	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32835	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32836	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32837	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32838	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32839	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32840	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32841	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32842	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32843	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32844	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32845	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32846	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32847	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32848	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32849	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32850	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32851	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32852	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32853	COG OPERATING LLC	Oil	26538
42-329-32854	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32855	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32856	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32857	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32858	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32859	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32860	COG OPERATING LLC	Oil	26538
42-329-32861	PARSLEY ENERGY OPERATIONS, LLC	Oil	33984
42-329-32862	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32863	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32864	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32865	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32866	Legacy Reserves Operating LP	Oil	33997
42-329-32867	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32868	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32869	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32870	CHEVRON U. S. A. INC.	Oil	34066
42-329-32871	CHEVRON U. S. A. INC.	Oil	34066
42-329-32872	CHEVRON U. S. A. INC.	Oil	34066
42-329-32873	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32874	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32875	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32876	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32877	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32878	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32879	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32880	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32881	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32882	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32883
42-329-32884	CHEVRON U. S. A. INC.	Oil	33991
42-329-32885	CHEVRON U. S. A. INC.	Oil	33991
42-329-32886	CHEVRON U. S. A. INC.	Oil	33991
42-329-32887	CHEVRON U. S. A. INC.	Oil	33991
42-329-32888	CHEVRON U. S. A. INC.	Oil	33991
42-329-32889	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32890	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33960
42-329-32891	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32892	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32893	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32894	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32895	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32896	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-32897	Henry Petroleum Corp.	Oil	34034
42-329-32898	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32899	ENDEAVOR ENERGY RESOURCES L.P.	Oil	11878
42-329-32900	ENDEAVOR ENERGY RESOURCES L.P.	Oil	11878
42-329-32901	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32902	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32903	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32904	CHEVRON U. S. A. INC.	Oil	34076
42-329-32905	CHEVRON U. S. A. INC.	Oil	34076
42-329-32906	CHEVRON U. S. A. INC.	Oil	34076
42-329-32907	CHEVRON U. S. A. INC.	Oil	34081
42-329-32908	CHEVRON U. S. A. INC.	Oil	34081
42-329-32909	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32910	COG OPERATING LLC	Oil	04116
42-329-32911	CHEVRON U. S. A. INC.	Oil	34081
42-329-32912	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32913	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32914	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32915	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32916	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32917	Hunt Oil Company	Oil	21071
42-329-32918	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34059
42-329-32919	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34059
42-329-32920	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32921	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32922	WESTERN GAS RESOURCES-TEXAS,INC.
42-329-32923	WESTERN GAS RESOURCES-TEXAS,INC.
42-329-32924	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32925	MWJ PRODUCING COMPANY	Oil	34025
42-329-32926	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32927	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32928	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32929	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32930	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32931	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32932	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32933	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32934	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32935	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32936	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32937	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32938	PIONEER NATURAL RES. USA, INC.	Oil	32134
42-329-32939	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34058
42-329-32940	Legacy Reserves Operating LP	Oil	34109
42-329-32941	Legacy Reserves Operating LP	Oil	34109
42-329-32942	PIONEER NATURAL RES. USA, INC.	Oil	27079
42-329-32943	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32944	MOBIL PIPE LINE COMPANY
42-329-32945	MOBIL PIPE LINE COMPANY
42-329-32946	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-32947	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32948	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32949	DE3 OPERATING LLC	Oil	22825
42-329-32950	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32951	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32952	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32953	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32954	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34079
42-329-32955	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32956	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32957	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32958	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34078
42-329-32959	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32960	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32961	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32962	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32963	ENDEAVOR ENERGY RESOURCES L.P.	Oil	25294
42-329-32964	ENDEAVOR ENERGY RESOURCES L.P.	Oil	06337
42-329-32965	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32966	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32967	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32968	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32969	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32970	ARCO PERMIAN	Gas	150176
42-329-32971	EXXON CORP.
42-329-32972	EL TRES EXPLORATION
42-329-32973	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32974	ENERGAS COMPANY
42-329-32975	ENERGAS COMPANY
42-329-32976	ENERGAS COMPANY
42-329-32977	ENERGAS COMPANY
42-329-32978	ENERGAS COMPANY
42-329-32979	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32980	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32981	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32982	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32983	Legacy Reserves Operating LP	Oil	34163
42-329-32984	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34101
42-329-32985	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32986	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32987	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32988	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32989	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32990	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32991	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34162
42-329-32992	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32993	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32994	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34101
42-329-32995	Legacy Reserves Operating LP	Oil	34170
42-329-32996	G P II ENERGY, INC.	Oil	34267
42-329-32997	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-32998	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33960
42-329-32999	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33000	COG OPERATING LLC	Oil	39630
42-329-33001	MAVERICK OPERATING, LLC	Oil	34103
42-329-33002	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33003	CHEVRON U. S. A. INC.	Oil	34081
42-329-33004	COG OPERATING LLC	Oil	26538
42-329-33005	COG OPERATING LLC	Oil	39630
42-329-33006	COG OPERATING LLC	Oil	39630
42-329-33007	XTO ENERGY INC.	Gas	148778
42-329-33008	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33009	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33010	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33011
42-329-33012	COG OPERATING LLC	Oil	04116
42-329-33013	PIONEER NATURAL RES. USA, INC.	Oil	34142
42-329-33014	PIONEER NATURAL RES. USA, INC.	Oil	34142
42-329-33015	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-33016	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33017	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33018	PIONEER NATURAL RES. USA, INC.	Oil	34157
42-329-33019	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33020	PIONEER NATURAL RES. USA, INC.	Oil	34156
42-329-33021
42-329-33022	PIONEER NATURAL RES. USA, INC.	Oil	34157
42-329-33023	PIONEER NATURAL RES. USA, INC.	Oil	34210
42-329-33024	PIONEER NATURAL RES. USA, INC.	Oil	34738
42-329-33025	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-33026	PIONEER NATURAL RES. USA, INC.	Oil	06267
42-329-33027	PIONEER NATURAL RES. USA, INC.	Oil	21240
42-329-33028	PIONEER NATURAL RES. USA, INC.	Oil	21240
42-329-33029	PIONEER NATURAL RES. USA, INC.	Oil	06267
42-329-33030	PIONEER NATURAL RES. USA, INC.	Oil	06268
42-329-33031	CHEVRON U. S. A. INC.	Oil	34066
42-329-33032	CHEVRON U. S. A. INC.	Oil	34066
42-329-33033	CHEVRON U. S. A. INC.	Oil	34066
42-329-33034	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-33035	PIONEER NATURAL RES. USA, INC.	Oil	21240
42-329-33036	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-33037	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33574
42-329-33038	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34190
42-329-33039	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33040	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33041	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33042	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33043	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33044	ENDEAVOR ENERGY RESOURCES L.P.	Oil	51108
42-329-33045	PIONEER NATURAL RES. USA, INC.	Oil	33957
42-329-33046	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34258
42-329-33047	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33048	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34305
42-329-33049	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34189
42-329-33050	CHEVRON U. S. A. INC.	Gas	151722
42-329-33051	CHEVRON U. S. A. INC.	Gas	151754
42-329-33052	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33053	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33054	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33055	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33056	CHEVRON U. S. A. INC.	Oil	34076
42-329-33057	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33058	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33059	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33060	CHEVRON U. S. A. INC.	Oil	34076
42-329-33061	CHEVRON U. S. A. INC.	Oil	34076
42-329-33062	CHEVRON U. S. A. INC.	Oil	34076
42-329-33063	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33064	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33065	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33066	PITTS ENERGY CO.	Oil	16419
42-329-33067	PITTS ENERGY CO.	Oil	16419
42-329-33068	PITTS ENERGY CO.	Oil	06369
42-329-33069	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-33070	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-33071	PIONEER NATURAL RES. USA, INC.	Oil	29651
42-329-33072	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33073	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33074	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-33075	MAVERICK OPERATING, LLC	Oil	34103
42-329-33076	WESTERN GAS RESOURCES-TEXAS,INC.
42-329-33077	WESTERN GAS RESOURCES-TEXAS,INC.
42-329-33078	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33079	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33080	STEPHENS, AUTRY C.	Oil	34768
42-329-33081	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33083	El Paso Natural Gas Company
42-329-33084	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33085	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33086	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33087	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33088	MOBIL PIPE LINE COMPANY
42-329-33089	MOBIL PIPE LINE COMPANY
42-329-33090	MOBIL PIPE LINE COMPANY
42-329-33091	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34257
42-329-33092	DE3 OPERATING LLC	Oil	31616
42-329-33093	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33094	Wagner Oil Company	Oil	34494
42-329-33095	PIONEER NATURAL RES. USA, INC.	Oil	21240
42-329-33096	PIONEER NATURAL RES. USA, INC.	Oil	06268
42-329-33097	PIONEER NATURAL RES. USA, INC.	Oil	21240
42-329-33098	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33099	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-33100	PIONEER NATURAL RES. USA, INC.	Oil	34468
42-329-33101	PIONEER NATURAL RES. USA, INC.	Oil	34337
42-329-33102	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34189
42-329-33103	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33104	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33105	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33106	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33107	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33108	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33109	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33110	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33111	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34298
42-329-33112	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33113	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33114	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33115	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33116	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33117	PIONEER NATURAL RES. USA, INC.	Oil	06267
42-329-33118	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33119	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33120	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33121	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33122	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33123	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33124	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34377
42-329-33125	TMBR/SHARP DRILLING, INC.	Oil	34370
42-329-33126	CHEVRON U. S. A. INC.	Oil	34380
42-329-33127	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33128	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33129	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33130	ENERGAS COMPANY
42-329-33131	ENERGAS COMPANY
42-329-33132	ENERGAS COMPANY
42-329-33133	ENERGAS COMPANY
42-329-33134	ENERGAS COMPANY
42-329-33135	ENERGAS COMPANY
42-329-33136	HENRY PETROLEUM LP	Oil	34395
42-329-33137	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33138	CHEVRON U. S. A. INC.	Oil	34437
42-329-33139	CHEVRON U. S. A. INC.	Oil	34437
42-329-33140	CHEVRON U. S. A. INC.	Oil	34437
42-329-33141	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33142	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33143	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33144	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33145	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33146	XTO ENERGY INC.	Oil	34474
42-329-33147	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34344
42-329-33148	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33149	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33150	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33151	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33152	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33153	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33154	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33155	CHEVRON U. S. A. INC.	Gas	153523
42-329-33156	TEXACO E & P INC.	Oil	25265
42-329-33157	CHEVRON U. S. A. INC.	Oil	34400
42-329-33158	MAVERICK OPERATING, LLC	Oil	34103
42-329-33159	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33160	CHEVRON U. S. A. INC.	Oil	34400
42-329-33161	CHEVRON U. S. A. INC.	Oil	34400
42-329-33162	CHEVRON U. S. A. INC.	Oil	34400
42-329-33163	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33164	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33165	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33166	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33167	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-33168	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-33169	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34401
42-329-33170	MURCHISON OIL & GAS INC	Oil	34413
42-329-33171	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33172	Lario Oil & Gas Company	Oil	06644
42-329-33173	Lario Oil & Gas Company	Oil	06644
42-329-33174	Lario Oil & Gas Company	Oil	06644
42-329-33175	Lario Oil & Gas Company	Oil	06644
42-329-33176	PRIME OPERATING COMPANY	Oil	34510
42-329-33177	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33178	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33179	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33180	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33181	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-33182	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33183	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33184	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33185	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33186	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33187	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34189
42-329-33188	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33189	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33190	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33191	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33192	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33193	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33194	HENRY PETROLEUM LP	Oil	34395
42-329-33195	HENRY PETROLEUM LP	Oil	34395
42-329-33196	HENRY PETROLEUM LP	Oil	34395
42-329-33197	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34267
42-329-33198	ENDEAVOR ENERGY RESOURCES L.P.	Oil	33960
42-329-33199	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33200	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33201	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33202	CHEVRON U. S. A. INC.	Gas	154101
42-329-33203	STEPHENS, AUTRY C.	Oil	33574
42-329-33204	PIONEER NATURAL RES. USA, INC.	Oil	06267
42-329-33205	PIONEER NATURAL RES. USA, INC.	Oil	06268
42-329-33206	COG OPERATING LLC	Oil	04116
42-329-33207	CHEVRON U. S. A. INC.	Gas	154202
42-329-33208	CHEVRON U. S. A. INC.	Gas	154763
42-329-33209	CHEVRON U. S. A. INC.	Oil	34533
42-329-33210	PIONEER NATURAL RES. USA, INC.	Oil	34424
42-329-33211	COG OPERATING LLC	Oil	39630
42-329-33212	COG OPERATING LLC	Oil	26538
42-329-33213	PIONEER NATURAL RES. USA, INC.	Oil	34450
42-329-33214	PIONEER NATURAL RES. USA, INC.	Oil	21240
42-329-33215	PIONEER NATURAL RES. USA, INC.	Oil	34157
42-329-33216	PIONEER NATURAL RES. USA, INC.	Oil	34210
42-329-33217	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33218	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33219	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33220	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33221	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33222	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33223	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33224	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33225	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33226	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34546
42-329-33227	PIONEER NATURAL RES. USA, INC.	Oil	34403
42-329-33228	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33229	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33230	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33231	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33232	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34189
42-329-33233	PIONEER NATURAL RES. USA, INC.	Oil	34457
42-329-33234	PIONEER NATURAL RES. USA, INC.	Oil	34451
42-329-33235	PIONEER NATURAL RES. USA, INC.	Oil	34451
42-329-33236	PIONEER NATURAL RES. USA, INC.	Oil	34454
42-329-33237	PIONEER NATURAL RES. USA, INC.	Oil	34471
42-329-33238	PIONEER NATURAL RES. USA, INC.	Oil	34265
42-329-33239	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33240	PIONEER NATURAL RES. USA, INC.	Oil	34142
42-329-33241	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33242	MAVERICK OPERATING, LLC	Oil	34103
42-329-33243	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33244	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33245	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33246	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33247	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33248	MOBIL PRODUCING TX. & N.M. INC.
42-329-33249	XTO ENERGY INC.	Oil	13793
42-329-33250	OVINTIV USA INC.	Oil	34717
42-329-33251	OVINTIV USA INC.	Oil	34576
42-329-33252
42-329-33253	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33254	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33255	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33256	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34377
42-329-33257	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33258	OXY USA WTP LP	Oil	15862
42-329-33259	PIONEER NATURAL RES. USA, INC.	Oil	34450
42-329-33260	PIONEER NATURAL RES. USA, INC.	Oil	34142
42-329-33261	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33262	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33263	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34401
42-329-33264	PIONEER NATURAL RES. USA, INC.	Oil	34618
42-329-33265	CHEVRON U. S. A. INC.	Oil	32075
42-329-33266	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33267	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33268	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33269	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33270	CHEVRON U. S. A. INC.	Gas	155262
42-329-33271	TEXACO E & P INC.	Oil	25265
42-329-33272	XTO ENERGY INC.	Oil	13896
42-329-33273	PARKER & PARSLEY DEVELOPMENT L.P
42-329-33274	PARKER & PARSLEY DEVELOPMENT L.P
42-329-33275	PIONEER NATURAL RES. USA, INC.	Oil	34621
42-329-33276	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33277	PARKER & PARSLEY DEVELOPMENT L.P
42-329-33278	PIONEER NATURAL RES. USA, INC.	Oil	34738
42-329-33279	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33280	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33281	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33282	CHEVRON U. S. A. INC.	Gas	155263
42-329-33283	CHEVRON U. S. A. INC.	Oil	43259
42-329-33284	TEXACO E & P INC.
42-329-33285	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33286	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33287	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33288	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33289	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33290	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33291	RENDOVA OIL COMPANY, INC.	Oil	34950
42-329-33292	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33293	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33294	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33295	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33296	XTO ENERGY INC.	Gas	156427
42-329-33297	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33298	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34298
42-329-33299	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33300	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33301	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34322
42-329-33302	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33303	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33304	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33305	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33306	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33307	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33308	Apache Corporation	Oil	06294
42-329-33309	Apache Corporation	Oil	06310
42-329-33310	XTO ENERGY INC.	Gas	156440
42-329-33311	CHEVRON U. S. A. INC.	Oil	22343
42-329-33312	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33313	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33314	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33315	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33316	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34354
42-329-33317	CHEVRON U. S. A. INC.	Oil	34400
42-329-33318	CHEVRON U. S. A. INC.	Oil	34400
42-329-33319	CHEVRON U. S. A. INC.	Oil	34400
42-329-33320	CHEVRON U. S. A. INC.	Oil	34400
42-329-33321	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33322	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33323	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33324	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33325	PIONEER NATURAL RES. USA, INC.	Oil	40291
42-329-33326	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34267
42-329-33327	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33328	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33329	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34802
42-329-33330	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33331	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33332	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33333	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33334	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33335	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33336	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-33337	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34401
42-329-33338	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34401
42-329-33339	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33340	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33341	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33342	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33343	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33344	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33345	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33346	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33347	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33348	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33349	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33350	Apache Corporation	Oil	13397
42-329-33351	MOBIL PRODUCING TX. & N.M. INC.	Oil	14354
42-329-33352	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34718
42-329-33353	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33354	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33355	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33356	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33357
42-329-33358	Collins & Ware, Inc.
42-329-33359	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33360	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33361	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33362	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33363	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33364	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33365	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33366	XTO ENERGY INC.	Gas	157160
42-329-33367	OVINTIV USA INC.	Oil	35645
42-329-33368	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-33369	MOBIL PIPE LINE COMPANY
42-329-33370	WILSON, W. CORP.	Oil	34819
42-329-33371	El Paso Natural Gas Company
42-329-33372	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33373	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33374	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33375	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33376	CHEVRON U. S. A. INC.	Oil	22343
42-329-33377	CHEVRON U. S. A. INC.	Oil	22343
42-329-33378	CHEVRON U. S. A. INC.	Oil	22343
42-329-33379	PIONEER NATURAL RES. USA, INC.	Oil	34454
42-329-33380	ENERGAS COMPANY
42-329-33381	ENERGAS COMPANY
42-329-33382	ENERGAS COMPANY
42-329-33383	ENERGAS COMPANY
42-329-33384	ENERGAS COMPANY
42-329-33385	ENERGAS COMPANY
42-329-33386	ENERGAS COMPANY
42-329-33387	ENERGAS COMPANY
42-329-33388	ENERGAS COMPANY
42-329-33389	ENERGAS COMPANY
42-329-33390	OVINTIV USA INC.	Oil	34576
42-329-33391	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33392	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33393	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33394	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33395	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33396	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34377
42-329-33397	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34377
42-329-33398	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33399	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33400	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33401	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33402	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33403	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33404	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33405	PIONEER NATURAL RES. USA, INC.	Oil	34167
42-329-33406	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33407	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21412
42-329-33408	Apache Corporation	Oil	14387
42-329-33410	DE3 OPERATING LLC	Oil	34885
42-329-33411	DE3 OPERATING LLC	Oil	34885
42-329-33412	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34802
42-329-33413	WESTERN GAS RESOURCES-TEXAS,INC.
42-329-33414	PIONEER NATURAL RES. USA, INC.	Oil	34853
42-329-33415	XTO ENERGY INC.	Oil	34910
42-329-33416	PIONEER NATURAL RES. USA, INC.	Oil	34855
42-329-33417	PIONEER NATURAL RES. USA, INC.	Oil	34888
42-329-33418	PIONEER NATURAL RES. USA, INC.	Oil	34908
42-329-33419	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34546
42-329-33420	XTO ENERGY INC.	Gas	163536
42-329-33421	Apache Corporation	Oil	06294
42-329-33422	Apache Corporation	Oil	06294
42-329-33423	Apache Corporation	Oil	06294
42-329-33424	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34267
42-329-33425	CHEVRON U. S. A. INC.	Oil	35296
42-329-33426	DE3 OPERATING LLC	Oil	34958
42-329-33427	Apache Corporation	Oil	06306
42-329-33428	Apache Corporation	Oil	06310
42-329-33429	Apache Corporation	Oil	35232
42-329-33430	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-33431	CHEVRON U. S. A. INC.	Oil	34918
42-329-33432	CHEVRON U. S. A. INC.	Oil	34918
42-329-33433	CHEVRON U. S. A. INC.	Oil	34918
42-329-33434	CHEVRON U. S. A. INC.	Oil	34918
42-329-33435	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33436	AMERICAN PETROFINA PIPE LINE CO.
42-329-33437	MANZANO OIL CORPORATION
42-329-33438	Henry Petroleum Corp.	Oil	34967
42-329-33439	OVINTIV USA INC.	Oil	39922
42-329-33440	CHEVRON U. S. A. INC.	Oil	34918
42-329-33441	CHEVRON U. S. A. INC.	Oil	34918
42-329-33442	CHEVRON U. S. A. INC.	Oil	34918
42-329-33443	CHEVRON U. S. A. INC.	Oil	34918
42-329-33444	CHEVRON U. S. A. INC.	Oil	34918
42-329-33445	ENDEAVOR ENERGY RESOURCES L.P.	Oil	47029
42-329-33446	ENDEAVOR ENERGY RESOURCES L.P.	Oil	47029
42-329-33447	PIONEER NATURAL RES. USA, INC.	Gas	282634
42-329-33448	OVINTIV USA INC.	Oil	34974
42-329-33449	CHEVRON U. S. A. INC.	Oil	22343
42-329-33450	STEPHENS, AUTRY C.
42-329-33451	CHEVRON U. S. A. INC.	Gas	159974
42-329-33452	OVINTIV USA INC.	Oil	35270
42-329-33453	OVINTIV USA INC.	Oil	34576
42-329-33454	OVINTIV USA INC.	Oil	34576
42-329-33455	BLUESTEM ENERGY HOLDINGS, LLC	Oil	21356
42-329-33456	BLUESTEM ENERGY HOLDINGS, LLC	Oil	21732
42-329-33457	OVINTIV USA INC.	Oil	34717
42-329-33458	OVINTIV USA INC.	Oil	39903
42-329-33459	CHEVRON U. S. A. INC.	Oil	35064
42-329-33460	CHEVRON U. S. A. INC.	Oil	20092
42-329-33462	CHEVRON U. S. A. INC.	Gas	160930
42-329-33463	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33464	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33465	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33466	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33467	PARKER & PARSLEY DEVELOPMENT L.P
42-329-33468	XTO ENERGY INC.	Gas	164360
42-329-33469	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33470	ENDEAVOR ENERGY RESOURCES L.P.	Oil	47029
42-329-33471	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33472	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33473	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33474	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33475	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33476	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33477	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33478	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33479	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33480	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33481	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35091
42-329-33482	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33483	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33484	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33485	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33486	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33487	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33488	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-33489	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33490
42-329-33491	PIONEER NATURAL RES. USA, INC.	Oil	34451
42-329-33492	CHEVRON U. S. A. INC.	Gas	160931
42-329-33493	CHEVRON U. S. A. INC.	Gas	161920
42-329-33494	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33495	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33496	PIONEER NATURAL RES. USA, INC.	Oil	34855
42-329-33497	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33498	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33499	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33500	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33501	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33502	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33503	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-33504	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-33505	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-33506	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33507	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33508	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33509	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-33510	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-33511	PIONEER NATURAL RES. USA, INC.	Oil	06414
42-329-33512	ARCO PERMIAN	Oil	35548
42-329-33513	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33514	PIONEER NATURAL RES. USA, INC.	Oil	34948
42-329-33515	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33516	Apache Corporation	Oil	35119
42-329-33517
42-329-33518	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33519	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33520	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33521	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33522	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33523	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33524
42-329-33525	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35274
42-329-33526	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33527	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33528	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33529	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-33530	CHEVRON U. S. A. INC.	Gas	162412
42-329-33531	TEXACO E & P INC.
42-329-33532	CHEVRON U. S. A. INC.	Gas	163464
42-329-33533	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-33534	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33535	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33536
42-329-33537	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33538	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33539	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33540	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33541	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33542
42-329-33543	Apache Corporation	Oil	03955
42-329-33544	OXY USA INC.
42-329-33545	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33546	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33547	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33548
42-329-33549	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-33550	OVINTIV USA INC.	Oil	34728
42-329-33551	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33552	OVINTIV USA INC.	Oil	35037
42-329-33553	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33554	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33555	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33556	PARKER & PARSLEY DEVELOPMENT L.P	Oil	18187
42-329-33557	PARKER & PARSLEY DEVELOPMENT L.P	Oil	18187
42-329-33558	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33559	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33560	Apache Corporation	Oil	34447
42-329-33561	Apache Corporation	Oil	34447
42-329-33562	Apache Corporation	Oil	34447
42-329-33563	Apache Corporation	Oil	34447
42-329-33564	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33565	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33566	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33567	PIONEER NATURAL RES. USA, INC.	Oil	06267
42-329-33568	PIONEER NATURAL RES. USA, INC.	Oil	20070
42-329-33569	DE3 OPERATING LLC	Oil	31605
42-329-33570	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33571	PARKER & PARSLEY DEVELOPMENT L.P
42-329-33572	PIONEER NATURAL RES. USA, INC.	Oil	32990
42-329-33573	PIONEER NATURAL RES. USA, INC.	Oil	33406
42-329-33574	PIONEER NATURAL RES. USA, INC.	Oil	29653
42-329-33575	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33576	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33577	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33578	ENERGAS COMPANY
42-329-33579	ENERGAS COMPANY
42-329-33580	ENERGAS COMPANY
42-329-33581	ENERGAS COMPANY
42-329-33582	ENERGAS COMPANY
42-329-33583	ENERGAS COMPANY
42-329-33584	OVINTIV USA INC.	Oil	39917
42-329-33585	OVINTIV USA INC.	Oil	35175
42-329-33586	PIONEER NATURAL RES. USA, INC.	Oil	35145
42-329-33587	PIONEER NATURAL RES. USA, INC.	Oil	35145
42-329-33588	PIONEER NATURAL RES. USA, INC.	Oil	35145
42-329-33589	PIONEER NATURAL RES. USA, INC.	Oil	35145
42-329-33590	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33591	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33592	PIONEER NATURAL RES. USA, INC.	Oil	34142
42-329-33593	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33594	CHEVRON U. S. A. INC.	Oil	39460
42-329-33595	CHEVRON U. S. A. INC.	Oil	32075
42-329-33596	OVINTIV USA INC.	Oil	39897
42-329-33597	OVINTIV USA INC.	Oil	34717
42-329-33598	OVINTIV USA INC.	Oil	39908
42-329-33599	G P II ENERGY, INC.
42-329-33600	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33601	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33602	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33603	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33604	OVINTIV USA INC.	Oil	39916
42-329-33605	OVINTIV USA INC.	Oil	35175
42-329-33606	PIONEER NATURAL RES. USA, INC.	Oil	35169
42-329-33607	Apache Corporation	Oil	14387
42-329-33608	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33609	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33610	CHEVRON U. S. A. INC.	Oil	35296
42-329-33611	CHEVRON U. S. A. INC.	Oil	35296
42-329-33612	ENDEAVOR ENERGY RESOURCES L.P.	Gas	170427
42-329-33613	CHEVRON U. S. A. INC.	Oil	35296
42-329-33614	CHEVRON U. S. A. INC.	Oil	35296
42-329-33615	CHEVRON U. S. A. INC.	Oil	35296
42-329-33616	CHEVRON U. S. A. INC.	Oil	35296
42-329-33617	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33618	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33619	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33620	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33621	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-33622	Apache Corporation	Oil	35272
42-329-33623	ENDEAVOR ENERGY RESOURCES L.P.	Oil	47029
42-329-33624	Apache Corporation	Oil	34939
42-329-33625	MOJAVE OPERATING COMPANY	Oil	36038
42-329-33626	STEPHENS, AUTRY C.
42-329-33627	ENDEAVOR ENERGY RESOURCES L.P.	Oil	48374
42-329-33628	ENDEAVOR ENERGY RESOURCES L.P.	Oil	47029
42-329-33629	Legacy Reserves Operating LP	Oil	34640
42-329-33630	CHEVRON U. S. A. INC.	Oil	40423
42-329-33631	G P II ENERGY, INC.	Gas	169439
42-329-33632	OVINTIV USA INC.	Oil	35251
42-329-33633	OVINTIV USA INC.	Oil	35251
42-329-33634	OVINTIV USA INC.	Oil	39927
42-329-33635	ARCO PERMIAN
42-329-33636	CHEVRON U. S. A. INC.	Oil	46052
42-329-33637	CHEVRON U. S. A. INC.	Gas	163359
42-329-33638	TEXACO E & P INC.	Oil	35325
42-329-33639	CHEVRON U. S. A. INC.	Gas	185119
42-329-33640	CHEVRON U. S. A. INC.	Oil	35316
42-329-33641	CHEVRON U. S. A. INC.	Oil	35316
42-329-33642	Apache Corporation	Oil	35276
42-329-33643	OVINTIV USA INC.	Oil	39921
42-329-33644	ENDEAVOR ENERGY RESOURCES L.P.	Oil	39311
42-329-33645	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23394
42-329-33646
42-329-33647	CHEVRON U. S. A. INC.	Oil	35238
42-329-33648	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35357
42-329-33649	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35356
42-329-33650	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33651	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33652	PIONEER NATURAL RES. USA, INC.	Oil	34948
42-329-33653	TEXACO E & P INC.	Oil	36014
42-329-33654	CHEVRON U. S. A. INC.	Gas	167652
42-329-33655	CHEVRON U. S. A. INC.	Gas	164490
42-329-33656	CHEVRON U. S. A. INC.	Gas	164491
42-329-33657	PIONEER NATURAL RES. USA, INC.	Oil	35410
42-329-33658	OVINTIV USA INC.	Oil	35327
42-329-33659	OVINTIV USA INC.	Oil	35327
42-329-33660	OVINTIV USA INC.	Oil	35327
42-329-33661	OVINTIV USA INC.	Oil	39912
42-329-33662
42-329-33663	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33664	CHEVRON U. S. A. INC.	Oil	35238
42-329-33665	CHEVRON U. S. A. INC.	Oil	40423
42-329-33666	CHEVRON U. S. A. INC.	Gas	163601
42-329-33667	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33668	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33669	Apache Corporation	Oil	34447
42-329-33670	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33671	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33672	PIONEER NATURAL RES. USA, INC.	Oil	35169
42-329-33673	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33674	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33675	PIONEER NATURAL RES. USA, INC.	Oil	34855
42-329-33676	DIAMONDBACK E&P LLC	Oil	35371
42-329-33677	Apache Corporation	Oil	34447
42-329-33678	Apache Corporation	Oil	34447
42-329-33679	Apache Corporation	Oil	34447
42-329-33680	PIONEER NATURAL RES. USA, INC.	Oil	34855
42-329-33681	CHEVRON U. S. A. INC.	Gas	286973
42-329-33682	PIONEER NATURAL RES. USA, INC.	Oil	35411
42-329-33683	PIONEER NATURAL RES. USA, INC.	Oil	35411
42-329-33684	PIONEER NATURAL RES. USA, INC.	Oil	34451
42-329-33685	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33686	Apache Corporation	Oil	35367
42-329-33687	Apache Corporation	Oil	34447
42-329-33688	CHEVRON U. S. A. INC.	Gas	166544
42-329-33689	XTO ENERGY INC.	Gas	164538
42-329-33690	Apache Corporation	Oil	35365
42-329-33691	XTO ENERGY INC.	Gas	165082
42-329-33692	CHEVRON U. S. A. INC.	Gas	164489
42-329-33693	Apache Corporation	Oil	34447
42-329-33694	Apache Corporation	Oil	34447
42-329-33695	Apache Corporation	Oil	34447
42-329-33696	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33697	PIONEER NATURAL RES. USA, INC.	Oil	35411
42-329-33698	CHEVRON U. S. A. INC.	Oil	20092
42-329-33699	CROWNQUEST OPERATING, LLC	Gas	167268
42-329-33700	CHEVRON U. S. A. INC.	Gas	165711
42-329-33701	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33702	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33703	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33704	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33705	PIONEER NATURAL RES. USA, INC.	Oil	35936
42-329-33706	OVINTIV USA INC.	Oil	35360
42-329-33707	OVINTIV USA INC.	Oil	35360
42-329-33708	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33709	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33710	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33711	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33712	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33713	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33714	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33715	CHEVRON U. S. A. INC.	Oil	40423
42-329-33716	Apache Corporation	Oil	35272
42-329-33717	Apache Corporation	Oil	34447
42-329-33718	Apache Corporation	Oil	34447
42-329-33719	Apache Corporation	Oil	34447
42-329-33720	Apache Corporation	Oil	34447
42-329-33721	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33722	Apache Corporation	Oil	35393
42-329-33723	TERRACE PETROLEUM CORPORATION	Oil	35392
42-329-33724	TEXACO E & P INC.
42-329-33725	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33726	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33727	Apache Corporation	Oil	34447
42-329-33728	CHEVRON U. S. A. INC.	Oil	35625
42-329-33729	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33730	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33731	TEXACO E & P INC.
42-329-33732	CHEVRON U. S. A. INC.	Gas	166546
42-329-33733	OVINTIV USA INC.	Oil	39891
42-329-33734	OVINTIV USA INC.	Oil	35390
42-329-33735	OVINTIV USA INC.	Oil	39892
42-329-33736	OVINTIV USA INC.	Oil	35390
42-329-33737	OVINTIV USA INC.	Oil	35037
42-329-33738	OVINTIV USA INC.	Oil	39896
42-329-33739	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33740	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33741	PARKER & PARSLEY DEVELOPMENT L.P	Oil	18187
42-329-33742	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33743	Apache Corporation	Oil	35272
42-329-33744	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33745	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33746
42-329-33747	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33748	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33749	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33750	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33751	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33752	PIONEER NATURAL RES. USA, INC.	Oil	35629
42-329-33753	PIONEER NATURAL RES. USA, INC.	Oil	35411
42-329-33754	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33755	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33756	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-33757	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33758	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33759	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33760	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33761	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33762	Apache Corporation	Oil	35393
42-329-33763	Apache Corporation	Oil	35393
42-329-33764	Apache Corporation	Oil	35272
42-329-33765	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33766	OVINTIV USA INC.	Oil	35439
42-329-33767	OVINTIV USA INC.	Oil	35439
42-329-33768	OVINTIV USA INC.	Oil	35439
42-329-33769	OVINTIV USA INC.	Oil	35439
42-329-33770	Apache Corporation	Oil	35552
42-329-33771	Apache Corporation	Oil	35552
42-329-33772	Apache Corporation	Oil	35552
42-329-33773	DE3 OPERATING LLC	Oil	21990
42-329-33774	TEXACO E & P INC.	Oil	35990
42-329-33775	CHEVRON U. S. A. INC.	Gas	166548
42-329-33776	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-33777	OVINTIV USA INC.	Oil	35482
42-329-33778	OVINTIV USA INC.	Oil	35482
42-329-33779	OVINTIV USA INC.	Oil	35482
42-329-33780	XTO ENERGY INC.	Gas	167211
42-329-33781	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23394
42-329-33782	Apache Corporation	Oil	35510
42-329-33783	Apache Corporation	Oil	35510
42-329-33784	Apache Corporation	Oil	35510
42-329-33785	Apache Corporation	Oil	35510
42-329-33786	ARCO PERMIAN
42-329-33787	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33788	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33789	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33790	OVINTIV USA INC.	Oil	35469
42-329-33791	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33792	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33793	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33794	PIONEER NATURAL RES. USA, INC.	Oil	26060
42-329-33795	Apache Corporation	Gas	281157
42-329-33796	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33797	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33798	OVINTIV USA INC.	Oil	35490
42-329-33799	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35508
42-329-33800	Apache Corporation	Gas	166540
42-329-33801	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33802	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33803	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33804	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33805	OVINTIV USA INC.	Oil	35468
42-329-33806	OVINTIV USA INC.	Oil	35551
42-329-33807	Apache Corporation	Oil	35516
42-329-33808	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33809	CHEVRON U. S. A. INC.	Gas	166547
42-329-33810	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33811	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33812	G P II ENERGY, INC.	Oil	36243
42-329-33813	CHEVRON U. S. A. INC.	Gas	168032
42-329-33814	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33815	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33816	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33817	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33818	OVINTIV USA INC.	Oil	35488
42-329-33819	OVINTIV USA INC.	Oil	35489
42-329-33820	ENDEAVOR ENERGY RESOURCES L.P.	Oil	34322
42-329-33821	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36144
42-329-33822	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33823	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21412
42-329-33824	JM COX RESOURCES, L.P.	Oil	21939
42-329-33825	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21412
42-329-33826	COG OPERATING LLC	Gas	168257
42-329-33827	Apache Corporation	Oil	34939
42-329-33828	Apache Corporation	Oil	35516
42-329-33829	OVINTIV USA INC.	Oil	35037
42-329-33830	OVINTIV USA INC.	Oil	35037
42-329-33831	OVINTIV USA INC.	Oil	34576
42-329-33832	OVINTIV USA INC.	Oil	34974
42-329-33833	OVINTIV USA INC.	Oil	39909
42-329-33834	OVINTIV USA INC.	Oil	34717
42-329-33835	OVINTIV USA INC.	Oil	34576
42-329-33836	OVINTIV USA INC.	Oil	34717
42-329-33837	OVINTIV USA INC.	Oil	34717
42-329-33838	CHEVRON U. S. A. INC.	Gas	168123
42-329-33839	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33840	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33841	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33842	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35520
42-329-33843	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35601
42-329-33844	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33845	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33846	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33847	CHEVRON U. S. A. INC.	Gas	285587
42-329-33848	Apache Corporation	Oil	35365
42-329-33849	Apache Corporation	Oil	34939
42-329-33850
42-329-33851	XTO ENERGY INC.	Gas	168124
42-329-33852	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35596
42-329-33853	DIAMONDBACK E&P LLC	Oil	35602
42-329-33854	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-33855	OVINTIV USA INC.	Oil	50054
42-329-33856	OVINTIV USA INC.	Oil	35690
42-329-33857	OVINTIV USA INC.	Oil	35649
42-329-33858	OVINTIV USA INC.	Oil	35603
42-329-33859	OVINTIV USA INC.	Oil	35644
42-329-33860	OVINTIV USA INC.	Oil	35717
42-329-33861	OVINTIV USA INC.	Oil	35822
42-329-33862	OVINTIV USA INC.	Oil	35595
42-329-33863	OXY USA WTP LP	Oil	31940
42-329-33864	OXY USA WTP LP	Oil	31940
42-329-33865	OXY USA INC.	Oil	31940
42-329-33866	CHEVRON U. S. A. INC.	Oil	34400
42-329-33867	CHEVRON U. S. A. INC.	Gas	167654
42-329-33868	Apache Corporation	Oil	35548
42-329-33869	Apache Corporation	Oil	35599
42-329-33870	Apache Corporation	Oil	35599
42-329-33871	Apache Corporation	Oil	35599
42-329-33872	Apache Corporation	Oil	35599
42-329-33873	Apache Corporation	Oil	35365
42-329-33874	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35638
42-329-33875	OVINTIV USA INC.	Oil	35647
42-329-33876	ARCO PERMIAN
42-329-33877	ARCO PERMIAN
42-329-33878	OVINTIV USA INC.	Oil	35604
42-329-33879	OVINTIV USA INC.	Oil	35573
42-329-33880	OVINTIV USA INC.	Oil	35700
42-329-33881	OVINTIV USA INC.	Oil	35800
42-329-33882	OVINTIV USA INC.	Oil	35688
42-329-33883	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33884	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33885	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33886	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33887	Apache Corporation	Oil	35365
42-329-33888	Apache Corporation	Oil	35548
42-329-33889	TEXACO E & P INC.
42-329-33890	TEXACO E & P INC.
42-329-33891	CHEVRON U. S. A. INC.	Gas	168539
42-329-33892	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33893	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33894	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33895	TEXACO E & P INC.
42-329-33896	CHEVRON U. S. A. INC.	Oil	34400
42-329-33897	CHEVRON U. S. A. INC.	Oil	34400
42-329-33898	TEXACO E & P INC.
42-329-33899	CHEVRON U. S. A. INC.	Oil	34400
42-329-33900	TEXACO E & P INC.
42-329-33901	TEXACO E & P INC.
42-329-33902	CHEVRON U. S. A. INC.	Oil	34400
42-329-33903	DE3 OPERATING LLC	Oil	22513
42-329-33904	BP America Production Company	Gas	167656
42-329-33905	PIONEER NATURAL RES. USA, INC.	Oil	34853
42-329-33906	Legacy Reserves Operating LP	Oil	35661
42-329-33907	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33908	Apache Corporation	Oil	35660
42-329-33909	Apache Corporation	Oil	35660
42-329-33910	Apache Corporation	Oil	35660
42-329-33911	Apache Corporation	Oil	35660
42-329-33912	Apache Corporation	Oil	35516
42-329-33913	Apache Corporation	Oil	35548
42-329-33914	OVINTIV USA INC.	Oil	35749
42-329-33915	OVINTIV USA INC.	Oil	35830
42-329-33916	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-33917	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23394
42-329-33918	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35706
42-329-33919	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35677
42-329-33920	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35648
42-329-33921	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35707
42-329-33922	Apache Corporation	Oil	35367
42-329-33923	Apache Corporation	Oil	35516
42-329-33924	Apache Corporation	Oil	35367
42-329-33925	Apache Corporation	Oil	35367
42-329-33926
42-329-33927	Apache Corporation	Oil	35623
42-329-33928	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36144
42-329-33929	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36144
42-329-33930	RICKS EXPLORATION, INC.	Gas	168203
42-329-33931	XTO ENERGY INC.	Gas	169094
42-329-33932	XTO ENERGY INC.	Gas	168901
42-329-33933	ENDEAVOR ENERGY RESOURCES L.P.	Oil	23394
42-329-33934	CHEVRON U. S. A. INC.	Gas	168541
42-329-33935	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35858
42-329-33936	Apache Corporation	Oil	34939
42-329-33937	PIONEER NATURAL RES. USA, INC.	Oil	35411
42-329-33938	OVINTIV USA INC.	Oil	35664
42-329-33939	OVINTIV USA INC.	Oil	35664
42-329-33940	OVINTIV USA INC.	Oil	35664
42-329-33941	OVINTIV USA INC.	Oil	35664
42-329-33942	OXY USA INC.
42-329-33943	CHEVRON U. S. A. INC.	Oil	35296
42-329-33944	Apache Corporation	Oil	35552
42-329-33945	Apache Corporation	Oil	35552
42-329-33946	Apache Corporation	Oil	35272
42-329-33947	Apache Corporation	Oil	35393
42-329-33948	OVINTIV USA INC.	Oil	35663
42-329-33949	OVINTIV USA INC.	Oil	35663
42-329-33950	OVINTIV USA INC.	Oil	35663
42-329-33951	OVINTIV USA INC.	Oil	35663
42-329-33952	Apache Corporation	Gas	168558
42-329-33953	BP America Production Company	Gas	169504
42-329-33954	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-33955	PIONEER NATURAL RES. USA, INC.
42-329-33956	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-33957	OVINTIV USA INC.	Oil	35769
42-329-33958	OVINTIV USA INC.	Oil	35769
42-329-33959	OVINTIV USA INC.	Oil	35769
42-329-33960	ARCO PERMIAN
42-329-33961	Apache Corporation	Oil	35510
42-329-33962	Apache Corporation	Oil	35510
42-329-33963	Apache Corporation	Oil	35510
42-329-33964	ENVIRONMENTAL DSPL SYSTEMS, LLC	Oil	35723
42-329-33965	OVINTIV USA INC.	Oil	35724
42-329-33966	OXY USA WTP LP	Oil	31940
42-329-33967	CHEVRON U. S. A. INC.	Gas	168854
42-329-33968	CHEVRON U. S. A. INC.	Gas	168855
42-329-33969	TEXACO E & P INC.
42-329-33970	CHEVRON U. S. A. INC.	Gas	170549
42-329-33971	TEXACO E & P INC.
42-329-33972	Apache Corporation	Oil	35652
42-329-33973	Cox, John L.	Oil	23635
42-329-33974	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33975	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33976	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33977	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33978	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33979	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33980	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33981	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33982	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33983	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33984	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33985	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-33986
42-329-33987	Apache Corporation	Oil	34939
42-329-33988	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21513
42-329-33989	Apache Corporation	Oil	35652
42-329-33990	Apache Corporation	Oil	35652
42-329-33991	XTO ENERGY INC.	Gas	168706
42-329-33992	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-33993	PIONEER NATURAL RES. USA, INC.	Oil	35770
42-329-33994	PIONEER NATURAL RES. USA, INC.	Oil	35693
42-329-33995	PIONEER NATURAL RES. USA, INC.	Oil	35682
42-329-33996	PIONEER NATURAL RES. USA, INC.	Oil	35682
42-329-33997	PIONEER NATURAL RES. USA, INC.	Oil	35693
42-329-33998	Apache Corporation	Oil	34939
42-329-33999	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-34000	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35865
42-329-34001	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36171
42-329-34002	OVINTIV USA INC.	Oil	35743
42-329-34003	ENCANA OIL & GAS(USA) INC.	Oil	35810
42-329-34004	OVINTIV USA INC.	Oil	35734
42-329-34005	ENCANA OIL & GAS(USA) INC.	Oil	35735
42-329-34006	COG OPERATING LLC	Gas	169307
42-329-34007	ENCANA OIL & GAS(USA) INC.	Oil	35829
42-329-34008	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-34009	PIONEER NATURAL RES. USA, INC.
42-329-34010	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34011	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34012	TEXACO E & P INC.
42-329-34013	TEXACO E & P INC.
42-329-34014	TEXACO E & P INC.	Oil	35790
42-329-34015	TEXACO E & P INC.
42-329-34016	PIONEER NATURAL RES. USA, INC.	Oil	34457
42-329-34017	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34018	PIONEER NATURAL RES. USA, INC.	Oil	34454
42-329-34019	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34020	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-34021	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-34022	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-34023	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21860
42-329-34024	XTO ENERGY INC.	Gas	169336
42-329-34025	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-34026	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-34027	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-34028	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34029	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34030	Apache Corporation	Oil	35727
42-329-34031	Apache Corporation	Oil	35727
42-329-34032	Apache Corporation	Oil	35727
42-329-34033	Apache Corporation	Oil	35727
42-329-34034	XTO ENERGY INC.	Gas	169333
42-329-34035	Apache Corporation	Oil	35773
42-329-34036	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34037	Apache Corporation	Oil	35510
42-329-34038	Apache Corporation	Oil	35773
42-329-34039	Apache Corporation	Oil	35773
42-329-34040	Apache Corporation	Oil	35773
42-329-34041	OVINTIV USA INC.	Oil	35768
42-329-34042	OVINTIV USA INC.	Oil	35799
42-329-34043	ARCO PERMIAN	Oil	35779
42-329-34044	OVINTIV USA INC.	Oil	35832
42-329-34045	OVINTIV USA INC.	Oil	35820
42-329-34046	ENCANA OIL & GAS(USA) INC.	Oil	35764
42-329-34047	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-34048	PIONEER NATURAL RES. USA, INC.
42-329-34049	PIONEER NATURAL RES. USA, INC.
42-329-34050	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-34051	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-34052	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-34053	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-34054	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34055	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-34056	ARCO PERMIAN
42-329-34057
42-329-34058
42-329-34059
42-329-34060	PIONEER NATURAL RES. USA, INC.	Oil	34471
42-329-34061	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-34062	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-34063	Apache Corporation	Oil	35272
42-329-34064	Apache Corporation	Oil	35393
42-329-34065	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34066	PIONEER NATURAL RES. USA, INC.	Oil	18551
42-329-34067	XTO ENERGY INC.	Gas	170300
42-329-34068	ARCO PERMIAN
42-329-34069	ARCO PERMIAN
42-329-34070	ARCO PERMIAN
42-329-34071	ARCO PERMIAN
42-329-34072	Apache Corporation	Gas	170383
42-329-34073	ARKLAND PRODUCING CO., INC.
42-329-34074
42-329-34075	OVINTIV USA INC.	Oil	35769
42-329-34076	PIONEER NATURAL RES. USA, INC.	Oil	34853
42-329-34077	XTO ENERGY INC.	Gas	169648
42-329-34078	OVINTIV USA INC.	Oil	35769
42-329-34079	OVINTIV USA INC.	Oil	35769
42-329-34080	OVINTIV USA INC.	Oil	35664
42-329-34081	Apache Corporation	Oil	35599
42-329-34082	Apache Corporation	Oil	35599
42-329-34083	Apache Corporation	Oil	35599
42-329-34084	Apache Corporation	Oil	35599
42-329-34085	OVINTIV USA INC.	Oil	35664
42-329-34086	OVINTIV USA INC.	Oil	35664
42-329-34087	OVINTIV USA INC.	Oil	35664
42-329-34088	XTO ENERGY INC.	Gas	170469
42-329-34089	Apache Corporation	Oil	35623
42-329-34090	Apache Corporation	Oil	35652
42-329-34091	PIONEER NATURAL RES. USA, INC.	Oil	35861
42-329-34092	Apache Corporation	Oil	35856
42-329-34093	Apache Corporation	Oil	35856
42-329-34094	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36170
42-329-34095	Apache Corporation	Oil	35831
42-329-34096	XTO ENERGY INC.	Gas	170474
42-329-34097	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-34098	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-34099	Apache Corporation	Gas	170384
42-329-34100	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-34101	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-34102	MOBIL PRODUCING TX. & N.M. INC.
42-329-34103	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-34104	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-34105	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-34106	Apache Corporation	Oil	35773
42-329-34107	Apache Corporation	Oil	35773
42-329-34108	Apache Corporation	Oil	35773
42-329-34109	Apache Corporation	Oil	35773
42-329-34110	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-34111	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-34112	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-34113	PIONEER NATURAL RES. USA, INC.	Oil	06451
42-329-34114	Apache Corporation	Oil	35272
42-329-34115	Apache Corporation	Oil	35393
42-329-34116	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36104
42-329-34117	STEPHENS, AUTRY C.
42-329-34118	Apache Corporation	Oil	34447
42-329-34119	Apache Corporation	Oil	34447
42-329-34120	Apache Corporation	Oil	34447
42-329-34121	Apache Corporation	Oil	34447
42-329-34122	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36144
42-329-34123	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34124	XTO ENERGY INC.	Gas	172304
42-329-34125	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34126	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34127	ENDEAVOR ENERGY RESOURCES L.P.	Oil	35975
42-329-34128	XTO ENERGY INC.	Gas	172686
42-329-34129	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36139
42-329-34130	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36203
42-329-34131	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37155
42-329-34132	Apache Corporation	Oil	35950
42-329-34133	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36220
42-329-34134	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36097
42-329-34135	Henry Petroleum Corp.
42-329-34136	LONE STAR PIPELINE COMPANY
42-329-34137	G P II ENERGY, INC.
42-329-34138	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34139	Apache Corporation	Gas	173830
42-329-34140	TEXACO E & P INC.
42-329-34142	DIAMONDBACK E&P LLC	Oil	16486
42-329-34143	DIAMONDBACK E&P LLC	Oil	16417
42-329-34144	DIAMONDBACK E&P LLC	Oil	16417
42-329-34145	DIAMONDBACK E&P LLC	Oil	16295
42-329-34146	DIAMONDBACK E&P LLC	Oil	16295
42-329-34147	DIAMONDBACK E&P LLC	Oil	16295
42-329-34148	DIAMONDBACK E&P LLC	Oil	16295
42-329-34149	DIAMONDBACK E&P LLC	Oil	16295
42-329-34150	DIAMONDBACK E&P LLC	Oil	16363
42-329-34151	DIAMONDBACK E&P LLC	Oil	16690
42-329-34152	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34153	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34154	DIAMONDBACK E&P LLC	Oil	16486
42-329-34155	BURLESON PETROLEUM, INC.	Oil	36109
42-329-34156	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34157	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34158	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34159	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34160	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34161	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34162	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34163	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36165
42-329-34164	DIAMONDBACK E&P LLC	Oil	16363
42-329-34165	Apache Corporation	Gas	173882
42-329-34166	ENDEAVOR ENERGY RESOURCES L.P.	Gas	174199
42-329-34167	Apache Corporation	Gas	175043
42-329-34168	Apache Corporation	Oil	29688
42-329-34169	TERRACE PETROLEUM CORPORATION	Gas	174834
42-329-34170	ENDEAVOR ENERGY RESOURCES L.P.	Gas	174933
42-329-34171	Apache Corporation	Gas	175542
42-329-34172	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36233
42-329-34173	Apache Corporation	Gas	175544
42-329-34174	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36159
42-329-34176	DE3 OPERATING LLC	Oil	36349
42-329-34177	Apache Corporation	Oil	29688
42-329-34178	ENDEAVOR ENERGY RESOURCES L.P.	Gas	175788
42-329-34179	ENDEAVOR ENERGY RESOURCES L.P.	Oil	46697
42-329-34180	Apache Corporation	Oil	29688
42-329-34181	Apache Corporation	Oil	29688
42-329-34182	Apache Corporation	Oil	29688
42-329-34183	Apache Corporation	Oil	29688
42-329-34184	CHEVRON U. S. A. INC.
42-329-34185	CHEVRON U. S. A. INC.	Oil	35625
42-329-34186	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34187	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34188	Apache Corporation	Oil	14979
42-329-34189	Hunt Oil Company	Oil	21071
42-329-34190	Hunt Oil Company	Oil	06398
42-329-34191	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34192	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34193	Hunt Oil Company	Oil	20269
42-329-34194	PIONEER NATURAL RES. USA, INC.	Oil	15400
42-329-34195	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34196	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34197	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34198	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34199	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34200	Apache Corporation	Oil	29688
42-329-34201	CHEVRON U. S. A. INC.	Oil	35625
42-329-34202	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36227
42-329-34203	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34204	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34205	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34206	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34207	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34208	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34209	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34210	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36264
42-329-34211	ENDEAVOR ENERGY RESOURCES L.P.	Gas	176237
42-329-34212	CHEVRON U. S. A. INC.	Oil	35625
42-329-34213	CHEVRON U. S. A. INC.	Oil	36369
42-329-34214	PIONEER NATURAL RES. USA, INC.	Oil	37336
42-329-34215	TERRACE PETROLEUM CORPORATION	Oil	36450
42-329-34216	Hunt Oil Company	Oil	21071
42-329-34217	ENDEAVOR ENERGY RESOURCES L.P.	Gas	176067
42-329-34218	Apache Corporation	Oil	29688
42-329-34219	DIAMONDBACK E&P LLC	Oil	16363
42-329-34220	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36497
42-329-34221	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36265
42-329-34222	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34223	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34224	CONCHO RESOURCES INC.
42-329-34225	COG OPERATING LLC	Oil	36277
42-329-34226	PIONEER NATURAL RES. USA, INC.
42-329-34227	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34228	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34229	ENDEAVOR ENERGY RESOURCES L.P.	Gas	176955
42-329-34230	CMS OIL AND GAS COMPANY
42-329-34231	CMS OIL AND GAS COMPANY	Oil	36639
42-329-34232	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34233	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34234	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34235	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36343
42-329-34236	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34237	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34238	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34239	Collins & Ware, Inc.
42-329-34240	PRIME OPERATING COMPANY
42-329-34241	ENDEAVOR ENERGY RESOURCES L.P.	Oil	45369
42-329-34242	ENERGEN RESOURCES CORPORATION	Oil	32083
42-329-34243	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34244
42-329-34245	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36306
42-329-34246	CMS OIL AND GAS COMPANY	Oil	36640
42-329-34247	ENDEAVOR ENERGY RESOURCES L.P.	Gas	176498
42-329-34248	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21412
42-329-34249	TERRACE PETROLEUM CORPORATION	Gas	178183
42-329-34250	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21412
42-329-34251	ENDEAVOR ENERGY RESOURCES L.P.	Oil	45632
42-329-34252	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34253	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34254	COG OPERATING LLC	Oil	36331
42-329-34255	ENDEAVOR ENERGY RESOURCES L.P.	Oil	21892
42-329-34256	Apache Corporation	Oil	36298
42-329-34257	Apache Corporation	Oil	36298
42-329-34258	Apache Corporation	Oil	36298
42-329-34259	Apache Corporation	Oil	36298
42-329-34260	Apache Corporation	Oil	36298
42-329-34261	Apache Corporation	Oil	36298
42-329-34262	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36291
42-329-34263	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34264	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34265	Apache Corporation	Gas	178581
42-329-34266	PIONEER NATURAL RES. USA, INC.
42-329-34267	PIONEER NATURAL RES. USA, INC.
42-329-34268	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34269	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34270	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34271	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34272	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34273	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34274	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34275	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34276	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34277	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34278	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34279	DE3 OPERATING LLC	Oil	22066
42-329-34280	DE3 OPERATING LLC	Oil	22066
42-329-34281	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34282	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34283	CHEVRON U. S. A. INC.	Oil	36376
42-329-34284	DIAMONDBACK E&P LLC	Oil	16690
42-329-34285	DIAMONDBACK E&P LLC	Oil	16690
42-329-34286	PIONEER NATURAL RES. USA, INC.	Oil	06390
42-329-34287	Cox, John L.	Oil	22167
42-329-34288	Apache Corporation	Oil	36298
42-329-34289	Apache Corporation	Oil	36298
42-329-34290	CMS OIL AND GAS COMPANY	Gas	178570
42-329-34291	ENDEAVOR ENERGY RESOURCES L.P.	Gas	178569
42-329-34292	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36353
42-329-34293	DE3 OPERATING LLC	Oil	22513
42-329-34294	DE3 OPERATING LLC	Oil	22831
42-329-34295	Nearburg Producing Company	Oil	36590
42-329-34296	DIAMONDBACK E&P LLC	Oil	36329
42-329-34297	ENDEAVOR ENERGY RESOURCES L.P.	Gas	180362
42-329-34298	Citation Oil & Gas Corp.	Oil	33622
42-329-34299	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36353
42-329-34300	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36233
42-329-34301	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36941
42-329-34302	DIAMONDBACK E&P LLC	Oil	36351
42-329-34303	STEPHENS, AUTRY C.
42-329-34304	DIAMONDBACK E&P LLC	Oil	36373
42-329-34305	DE3 OPERATING LLC	Oil	21990
42-329-34306	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36378
42-329-34307	DE3 OPERATING LLC	Gas	183942
42-329-34308	PIONEER NATURAL RES. USA, INC.	Gas	179261
42-329-34309	DE3 OPERATING LLC	Oil	22347
42-329-34310	DE3 OPERATING LLC	Oil	22347
42-329-34311	ENDEAVOR ENERGY RESOURCES L.P.	Gas	180054
42-329-34312	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36291
42-329-34313	DISCOVERY OPERATING, INC.	Oil	36408
42-329-34314	ENDEAVOR ENERGY RESOURCES L.P.	Gas	180138
42-329-34315	DIAMONDBACK E&P LLC	Oil	16417
42-329-34316	DIAMONDBACK E&P LLC	Oil	16417
42-329-34317	DIAMONDBACK E&P LLC	Oil	16417
42-329-34318	DIAMONDBACK E&P LLC	Oil	16417
42-329-34319	XTO ENERGY INC.	Oil	36586
42-329-34320	DISCOVERY OPERATING, INC.	Oil	36408
42-329-34321	DISCOVERY OPERATING, INC.	Oil	36408
42-329-34322	DISCOVERY OPERATING, INC.	Oil	36418
42-329-34323	TEXACO E & P INC.
42-329-34324	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36291
42-329-34325	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34326	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34327	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34328	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34329	MIDLAND ENERGY, INC.	Oil	36413
42-329-34330	COG OPERATING LLC	Oil	36409
42-329-34331	XTO ENERGY INC.	Gas	181750
42-329-34332	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34333	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34334	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34335	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34336	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34337	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34338	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36701
42-329-34339	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36437
42-329-34340	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36437
42-329-34341	Apache Corporation	Gas	180321
42-329-34342	DIAMONDBACK E&P LLC	Oil	16363
42-329-34343	DIAMONDBACK E&P LLC	Oil	16363
42-329-34344	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34345	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34346	ENDEAVOR ENERGY RESOURCES L.P.	Gas	180832
42-329-34347	DISCOVERY OPERATING, INC.	Oil	36457
42-329-34348	CHEVRON U. S. A. INC.	Oil	22343
42-329-34349	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34350	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34351	COG OPERATING LLC	Oil	36464
42-329-34352	OXY USA WTP LP	Oil	15862
42-329-34353	DISCOVERY OPERATING, INC.	Oil	36459
42-329-34354	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34355	Apache Corporation	Gas	182015
42-329-34356	ENDEAVOR ENERGY RESOURCES L.P.	Oil	49463
42-329-34357	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34358	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34359	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34360	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34361	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34362	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36607
42-329-34363	DISCOVERY OPERATING, INC.	Oil	36459
42-329-34364	DISCOVERY OPERATING, INC.	Oil	36459
42-329-34365	DISCOVERY OPERATING, INC.	Oil	36459
42-329-34366	PLAINS MARKETING, L.P.
42-329-34367	PLAINS MARKETING, L.P.
42-329-34368	PLAINS MARKETING, L.P.
42-329-34369	COG OPERATING LLC	Oil	36463
42-329-34370	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36291
42-329-34371	XTO ENERGY INC.	Gas	183142
42-329-34372	CMS OIL AND GAS COMPANY	Oil	36449
42-329-34373	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36449
42-329-34374	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36449
42-329-34375	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34376	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34377	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34378	PIONEER NATURAL RES. USA, INC.
42-329-34379	PIONEER NATURAL RES. USA, INC.
42-329-34380	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36503
42-329-34381	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36589
42-329-34382	DIAMONDBACK E&P LLC	Oil	36351
42-329-34383	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34384	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34385	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34386	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34387	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36760
42-329-34388	OXY USA WTP LP	Gas	205979
42-329-34389	DIAMONDBACK E&P LLC	Oil	36329
42-329-34390	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36611
42-329-34391	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36646
42-329-34392	DISCOVERY OPERATING, INC.	Oil	36457
42-329-34393	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34394	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34395	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34396	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34397	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34398	ENDEAVOR ENERGY RESOURCES L.P.
42-329-34399
42-329-34400	PIONEER NATURAL RES. USA, INC.	Oil	36966
42-329-34401	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34402	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36437
42-329-34403	Lario Oil & Gas Company	Oil	06644
42-329-34404	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36437
42-329-34405	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34406	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34407	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34408	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34409	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34410	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34411	Abraxas Petroleum Corporation
42-329-34412	Abraxas Petroleum Corporation
42-329-34413	Abraxas Petroleum Corporation
42-329-34414	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34415	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36609
42-329-34416	ENDEAVOR ENERGY RESOURCES L.P.	Oil	43720
42-329-34417	Apache Corporation	Gas	185074
42-329-34418	PIONEER NATURAL RES. USA, INC.	Oil	37307
42-329-34419	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34420	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36988
42-329-34421	OXY USA WTP LP	Oil	31940
42-329-34422	DIAMONDBACK E&P LLC	Oil	36502
42-329-34423	DIAMONDBACK E&P LLC	Oil	36502
42-329-34424	COG OPERATING LLC	Oil	36777
42-329-34425	DIAMONDBACK E&P LLC	Oil	36573
42-329-34426	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-34427	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36560
42-329-34428	DIAMONDBACK E&P LLC	Oil	36591
42-329-34429	DIAMONDBACK E&P LLC	Oil	36591
42-329-34430	DIAMONDBACK E&P LLC	Oil	36591
42-329-34431	DIAMONDBACK E&P LLC	Oil	36591
42-329-34432	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34433	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34434	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34435	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34436	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34437	PIONEER NATURAL RES. USA, INC.	Oil	18187
42-329-34438	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36532
42-329-34439	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36532
42-329-34440	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36449
42-329-34441	CMS OIL AND GAS COMPANY	Oil	36449
42-329-34442	CMS OIL AND GAS COMPANY
42-329-34443	COG OPERATING LLC	Oil	36464
42-329-34444	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36353
42-329-34445	DISCOVERY OPERATING, INC.	Oil	36561
42-329-34446	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36543
42-329-34447	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36543
42-329-34448	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36617
42-329-34449	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36618
42-329-34450	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36583
42-329-34451	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36583
42-329-34452	CONCHO RESOURCES INC.
42-329-34453	CONCHO RESOURCES INC.
42-329-34454	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36560
42-329-34455	ENDEAVOR ENERGY RESOURCES L.P.	Oil	39312
42-329-34456	DISCOVERY OPERATING, INC.	Oil	36561
42-329-34457	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36602
42-329-34458	COG OPERATING LLC	Oil	36463
42-329-34459	COG OPERATING LLC	Oil	36277
42-329-34460	ENDEAVOR ENERGY RESOURCES L.P.	Oil	53597
42-329-34461	Apache Corporation	Gas	186446
42-329-34462	Apache Corporation	Gas	184694
42-329-34463	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36644
42-329-34464	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36644
42-329-34465	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36233
42-329-34466	MIDLAND ENERGY, INC.	Oil	36413
42-329-34467	COG OPERATING LLC	Oil	36596
42-329-34468	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34469	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34470	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34471	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34472	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36594
42-329-34473	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36594
42-329-34474	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36611
42-329-34475	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36646
42-329-34476	DISCOVERY OPERATING, INC.	Oil	36585
42-329-34477	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36602
42-329-34478	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36634
42-329-34479	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36634
42-329-34480	DIAMONDBACK E&P LLC	Oil	36502
42-329-34481	ENDEAVOR ENERGY RESOURCES L.P.	Oil	45739
42-329-34482	DISCOVERY OPERATING, INC.	Oil	36585
42-329-34483	PIONEER NATURAL RES. USA, INC.	Oil	37160
42-329-34484	Legacy Reserves Operating LP	Gas	278344
42-329-34485	COG OPERATING LLC	Oil	36464
42-329-34486	COG OPERATING LLC	Oil	36596
42-329-34487	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37062
42-329-34488	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34489	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34490	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36648
42-329-34491	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-34492	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37234
42-329-34493	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-34494	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-34495	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36654
42-329-34496	ENDEAVOR ENERGY RESOURCES L.P.	Oil	49460
42-329-34497	ENDEAVOR ENERGY RESOURCES L.P.	Oil	49460
42-329-34498	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36654
42-329-34499	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34500	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36423
42-329-34501	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36543
42-329-34502	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36449
42-329-34503	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36449
42-329-34504	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36449
42-329-34505	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36648
42-329-34506	DISCOVERY OPERATING, INC.	Oil	36561
42-329-34507	DISCOVERY OPERATING, INC.	Oil	36652
42-329-34508	DISCOVERY OPERATING, INC.	Oil	36457
42-329-34509	DISCOVERY OPERATING, INC.	Oil	36561
42-329-34510	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-34511	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-34512	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-34513	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-34514	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-34515	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36648
42-329-34516	ENDEAVOR ENERGY RESOURCES L.P.	Gas	192411
42-329-34517	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34518	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34519	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34520	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36449
42-329-34521	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34522	ENDEAVOR ENERGY RESOURCES L.P.	Gas	184696
42-329-34523	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-34524	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-34525	Sm Energy Company	Oil	36604
42-329-34526	Sm Energy Company	Oil	36604
42-329-34527	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-34528	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36653
42-329-34529	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34530	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34531	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34532	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34533	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34534	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34535	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36543
42-329-34536	DISCOVERY OPERATING, INC.	Oil	36700
42-329-34537	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36437
42-329-34538	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36437
42-329-34539	DISCOVERY OPERATING, INC.	Oil	36655
42-329-34540	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-34541	ENDEAVOR ENERGY RESOURCES L.P.	Oil	39720
42-329-34542	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36617
42-329-34543	TXU LONE STAR PIPELINE
42-329-34544	DIAMONDBACK E&P LLC	Oil	21223
42-329-34545	DIAMONDBACK E&P LLC	Oil	21223
42-329-34546	DISCOVERY OPERATING, INC.	Oil	36655
42-329-34547	DISCOVERY OPERATING, INC.	Oil	36585
42-329-34548	DISCOVERY OPERATING, INC.	Oil	36700
42-329-34549	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-34550	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-34551	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-34552	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-34553	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-34554	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36750
42-329-34555	CHEVRON U. S. A. INC.	Oil	36369
42-329-34556	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-34557	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-34558	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-34559	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-34560	OXY USA WTP LP	Gas	205980
42-329-34561	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36543
42-329-34562	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36543
42-329-34563	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36677
42-329-34564	PRIME OPERATING COMPANY	Oil	27654
42-329-34565	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36677
42-329-34566	PIONEER NATURAL RES. USA, INC.	Oil	15254
42-329-34567	Lario Oil & Gas Company	Oil	36632
42-329-34568	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36644
42-329-34569	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36644
42-329-34570	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36644
42-329-34571	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36644
42-329-34572	DIAMONDBACK E&P LLC	Oil	21223
42-329-34573	DIAMONDBACK E&P LLC	Oil	21223
42-329-34574	ENDEAVOR ENERGY RESOURCES L.P.	Gas	185610
42-329-34575	ENDEAVOR ENERGY RESOURCES L.P.	Gas	185774
42-329-34576	BOLGER OPERATING CO.	Oil	28766
42-329-34577	XTO ENERGY INC.	Gas	191113
42-329-34578	CROWNQUEST OPERATING, LLC	Oil	37137
42-329-34579	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36804
42-329-34580	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36804
42-329-34581	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36644
42-329-34582	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36644
42-329-34583	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34584	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34585	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36594
42-329-34586	DISCOVERY OPERATING, INC.	Oil	36655
42-329-34587	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36724
42-329-34588	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36543
42-329-34589	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36543
42-329-34590	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36594
42-329-34591	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36634
42-329-34592	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36449
42-329-34593	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36449
42-329-34594	DISCOVERY OPERATING, INC.	Oil	36872
42-329-34595	DISCOVERY OPERATING, INC.	Oil	36872
42-329-34596	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36644
42-329-34597	ENDEAVOR ENERGY RESOURCES L.P.
42-329-34598	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36506
42-329-34599
42-329-34600	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36644
42-329-34601	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36644
42-329-34602	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36583
42-329-34603	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36583
42-329-34604	XTO ENERGY INC.	Gas	191117
42-329-34605	ENDEAVOR ENERGY RESOURCES L.P.	Oil	52308
42-329-34606	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36644
42-329-34607	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36644
42-329-34608	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-34609	PIONEER NATURAL RES. USA, INC.	Oil	21487
42-329-34610	PIONEER NATURAL RES. USA, INC.	Oil	36796
42-329-34611	ENDEAVOR ENERGY RESOURCES L.P.
42-329-34612	ENDEAVOR ENERGY RESOURCES L.P.	Oil	37082
42-329-34613	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36654
42-329-34614	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36654
42-329-34615	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36654
42-329-34616
42-329-34617	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36654
42-329-34618	CMS OIL AND GAS COMPANY
42-329-34619	DISCOVERY OPERATING, INC.	Oil	36652
42-329-34620	OXY USA WTP LP	Gas	205970
42-329-34621	CHEVRON U. S. A. INC.	Oil	44361
42-329-34622	ENDEAVOR ENERGY RESOURCES L.P.	Gas	186909
42-329-34623	ENDEAVOR ENERGY RESOURCES L.P.	Oil	49460
42-329-34624	ENDEAVOR ENERGY RESOURCES L.P.	Oil	49460
42-329-34625	ENDEAVOR ENERGY RESOURCES L.P.	Oil	49460
42-329-34626
42-329-34627	ENDEAVOR ENERGY RESOURCES L.P.	Oil	49460
42-329-34628	ENDEAVOR ENERGY RESOURCES L.P.	Oil	49460
42-329-34629	ENVIRONMENTAL DISPOSAL SYSTEMS	Oil	38088
42-329-34630	XTO ENERGY INC.	Gas	191723
42-329-34631	XTO ENERGY INC.	Gas	191115
42-329-34632	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36757
42-329-34633	CHEVRON U. S. A. INC.	Oil	40422
42-329-34634	HENRY RESOURCES LLC	Oil	36830
42-329-34635	ENDEAVOR ENERGY RESOURCES L.P.	Oil	36656
42-329-34636