If you find this page useful and would like to be notified of changes made to this page, start by inputting your email below.
powered by ChangeDetection
m |
m |
||
| (4 intermediate revisions by the same user not shown) | |||
| Line 6: | Line 6: | ||
| Other Operator Alias: | | Other Operator Alias: | ||
|- | |- | ||
| − | | | + | | Countries: United States, Canada |
|- | |- | ||
| − | | Registered Ohio Address: | + | | Registered Ohio Address: STATE COLLEGE, Pennsylvania 16801 |
|- | |- | ||
| − | | Registered Ohio Phone Number: | + | | Registered Ohio Phone Number: 8142787149 |
|- | |- | ||
| Registered Pennsylvania Address: 366 WALKER DR, STATE COLLEGE, Pennsylvania 16801-7085 | | Registered Pennsylvania Address: 366 WALKER DR, STATE COLLEGE, Pennsylvania 16801-7085 | ||
| Line 36: | Line 36: | ||
!scope="col" | Configuration | !scope="col" | Configuration | ||
!scope="col" | Well/License Status | !scope="col" | Well/License Status | ||
| + | !scope="col" | Well Pad ID | ||
|- | |- | ||
| [[37-019-21584]] | | [[37-019-21584]] | ||
| Line 45: | Line 46: | ||
| Y | | Y | ||
| Vertical Well | | Vertical Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 55: | Line 57: | ||
| Y | | Y | ||
| Vertical Well | | Vertical Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 65: | Line 68: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 75: | Line 79: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 85: | Line 90: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 95: | Line 101: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 105: | Line 112: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 115: | Line 123: | ||
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| − | | | + | | |
| + | | | ||
|- | |- | ||
| [[37-019-21755]] | | [[37-019-21755]] | ||
| Line 125: | Line 134: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 135: | Line 145: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 145: | Line 156: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 155: | Line 167: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 165: | Line 178: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 175: | Line 189: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 185: | Line 200: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 195: | Line 211: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 205: | Line 222: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 215: | Line 233: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 225: | Line 244: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 235: | Line 255: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 245: | Line 266: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 255: | Line 277: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 265: | Line 288: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 275: | Line 299: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 285: | Line 310: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 295: | Line 321: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 305: | Line 332: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 315: | Line 343: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 325: | Line 354: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 335: | Line 365: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 345: | Line 376: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 355: | Line 387: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 365: | Line 398: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 375: | Line 409: | ||
| Y | | Y | ||
| Vertical Well | | Vertical Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 385: | Line 420: | ||
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| + | | ABANDONED | ||
| | | | ||
|- | |- | ||
| Line 392: | Line 428: | ||
| [[Dunbar_Township,_Fayette_County,_Pennsylvania|Dunbar Township]] | | [[Dunbar_Township,_Fayette_County,_Pennsylvania|Dunbar Township]] | ||
| 1996-09-10 | | 1996-09-10 | ||
| − | | | + | | |
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| − | | | + | | PLUGGED & ABANDONED |
| + | | | ||
|- | |- | ||
| [[37-051-20936]] | | [[37-051-20936]] | ||
| Line 402: | Line 439: | ||
| [[Nicholson_Township,_Fayette_County,_Pennsylvania|Nicholson Township]] | | [[Nicholson_Township,_Fayette_County,_Pennsylvania|Nicholson Township]] | ||
| 1997-09-26 | | 1997-09-26 | ||
| − | | | + | | |
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| − | | | + | | PLUGGED & ABANDONED |
| + | | | ||
|- | |- | ||
| [[37-051-21245]] | | [[37-051-21245]] | ||
| Line 415: | Line 453: | ||
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 425: | Line 464: | ||
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| + | | INACTIVE | ||
| | | | ||
|- | |- | ||
| Line 432: | Line 472: | ||
| [[Mill Creek_Township,_Mercer_County,_Pennsylvania|Mill Creek Township]] | | [[Mill Creek_Township,_Mercer_County,_Pennsylvania|Mill Creek Township]] | ||
| 1996-01-12 | | 1996-01-12 | ||
| − | | | + | | |
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| − | | | + | | PLUGGED & ABANDONED |
| + | | | ||
|- | |- | ||
| [[37-085-22275]] | | [[37-085-22275]] | ||
| Line 442: | Line 483: | ||
| [[Mill Creek_Township,_Mercer_County,_Pennsylvania|Mill Creek Township]] | | [[Mill Creek_Township,_Mercer_County,_Pennsylvania|Mill Creek Township]] | ||
| 1996-08-12 | | 1996-08-12 | ||
| − | | | + | | |
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| − | | | + | | PLUGGED & ABANDONED |
| + | | | ||
|- | |- | ||
| [[37-123-32395]] | | [[37-123-32395]] | ||
| Line 452: | Line 494: | ||
| [[Columbus_Township,_Warren_County,_Pennsylvania|Columbus Township]] | | [[Columbus_Township,_Warren_County,_Pennsylvania|Columbus Township]] | ||
| 1982-12-29 | | 1982-12-29 | ||
| − | | | + | | |
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| − | | | + | | PLUGGED & ABANDONED |
| + | | | ||
|- | |- | ||
| [[37-123-38142]] | | [[37-123-38142]] | ||
| Line 465: | Line 508: | ||
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 472: | Line 516: | ||
| [[Mead_Township,_Warren_County,_Pennsylvania|Mead Township]] | | [[Mead_Township,_Warren_County,_Pennsylvania|Mead Township]] | ||
| 1985-10-23 | | 1985-10-23 | ||
| − | | | + | | |
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| − | | | + | | PLUGGED & ABANDONED |
| + | | | ||
|- | |- | ||
| [[37-123-38209]] | | [[37-123-38209]] | ||
| Line 482: | Line 527: | ||
| [[Mead_Township,_Warren_County,_Pennsylvania|Mead Township]] | | [[Mead_Township,_Warren_County,_Pennsylvania|Mead Township]] | ||
| 1985-10-23 | | 1985-10-23 | ||
| − | | | + | | |
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| − | | | + | | PLUGGED & ABANDONED |
| + | | | ||
|- | |- | ||
| [[37-123-38210]] | | [[37-123-38210]] | ||
| Line 492: | Line 538: | ||
| [[Mead_Township,_Warren_County,_Pennsylvania|Mead Township]] | | [[Mead_Township,_Warren_County,_Pennsylvania|Mead Township]] | ||
| 1985-10-23 | | 1985-10-23 | ||
| − | | | + | | |
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| − | | | + | | PLUGGED & ABANDONED |
| + | | | ||
|- | |- | ||
| [[37-123-38225]] | | [[37-123-38225]] | ||
| Line 502: | Line 549: | ||
| [[Columbus_Township,_Warren_County,_Pennsylvania|Columbus Township]] | | [[Columbus_Township,_Warren_County,_Pennsylvania|Columbus Township]] | ||
| 1988-12-02 | | 1988-12-02 | ||
| − | | | + | | |
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| − | | | + | | |
| + | | | ||
|- | |- | ||
| [[37-123-38492]] | | [[37-123-38492]] | ||
| Line 515: | Line 563: | ||
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 522: | Line 571: | ||
| [[Columbus_Township,_Warren_County,_Pennsylvania|Columbus Township]] | | [[Columbus_Township,_Warren_County,_Pennsylvania|Columbus Township]] | ||
| 1984-09-11 | | 1984-09-11 | ||
| − | | | + | | |
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| − | | | + | | PLUGGED & ABANDONED |
| + | | | ||
|- | |- | ||
| [[37-123-40945]] | | [[37-123-40945]] | ||
| Line 532: | Line 582: | ||
| [[Columbus_Township,_Warren_County,_Pennsylvania|Columbus Township]] | | [[Columbus_Township,_Warren_County,_Pennsylvania|Columbus Township]] | ||
| 1990-06-25 | | 1990-06-25 | ||
| − | | | + | | |
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| − | | | + | | PLUGGED & ABANDONED |
| + | | | ||
|- | |- | ||
| [[37-123-41054]] | | [[37-123-41054]] | ||
| Line 542: | Line 593: | ||
| [[Columbus_Township,_Warren_County,_Pennsylvania|Columbus Township]] | | [[Columbus_Township,_Warren_County,_Pennsylvania|Columbus Township]] | ||
| 1990-10-15 | | 1990-10-15 | ||
| − | | | + | | |
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| − | | | + | | PLUGGED & ABANDONED |
| + | | | ||
|- | |- | ||
| [[37-123-42573]] | | [[37-123-42573]] | ||
| Line 555: | Line 607: | ||
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 565: | Line 618: | ||
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 575: | Line 629: | ||
| N | | N | ||
| Vertical Well | | Vertical Well | ||
| + | | ABANDONED | ||
| | | | ||
|- | |- | ||
| Line 585: | Line 640: | ||
| Y | | Y | ||
| Horizontal Well | | Horizontal Well | ||
| + | | | ||
| | | | ||
|- | |- | ||
| Line 608: | Line 664: | ||
| date = 2019-04-30 | | date = 2019-04-30 | ||
| url = http://wellwiki.org/wiki/Pennsylvania_Oil_and_Gas_Data_Sources | | url = http://wellwiki.org/wiki/Pennsylvania_Oil_and_Gas_Data_Sources | ||
| − | | accessdate = 2019-05-16 }}</ref> | + | | accessdate = 2019-05-16 }}</ref><ref name="HIFLD_operator_ref">{{cite web |
| + | | title = Oil and Natural Gas Wells | ||
| + | |publisher = Homeland Infrastructure Foundation-Level Data | ||
| + | | date = 2019-09-24 | ||
| + | | url = http://wellwiki.org/wiki/HIFLD_Oil_and_Gas_Data_Sources | ||
| + | | accessdate = 2020-09-12 }}</ref><ref name="USGS_operator_ref">{{cite web | ||
| + | | title = Petroleum related wells | ||
| + | |publisher = U.S. Geological Survey | ||
| + | | date = 2014-08-06 | ||
| + | | url = http://wellwiki.org/wiki/USGS_Oil_and_Gas_Data_Sources | ||
| + | | accessdate = 2020-09-12 }}</ref><ref name="TX_operator_ref">{{cite web | ||
| + | | title = RRC Production Data | ||
| + | |publisher = Railrod Commission of Texas | ||
| + | | date = 2020-10-15 | ||
| + | | url = https://wellwiki.org/wiki/Texas_Oil_and_Gas_Data_Sources | ||
| + | | accessdate = 2020-10-15 }}</ref><ref name="OK_operator_ref">{{cite web | ||
| + | | title = W97 Operator Data | ||
| + | |publisher = Oklahoma Corporation Commission | ||
| + | | date = 2020-10-29 | ||
| + | | url = https://wellwiki.org/wiki/Oklahoma_Oil_and_Gas_Data_Sources | ||
| + | | accessdate = 2020-10-29 }}</ref><ref name="KS_operator_ref">{{cite web | ||
| + | | title = All Wells | ||
| + | |publisher = Kansas Geological Survey | ||
| + | | date = 2020-10-26 | ||
| + | | url = https://wellwiki.org/wiki/Kansas_Oil_and_Gas_Data_Sources | ||
| + | | accessdate = 2020-11-18 }}</ref> | ||
| + | |||
==References== | ==References== | ||
<references/> | <references/> | ||
| Operator Name: REX ENERGY OPERATING CORP |
| Other Operator Alias: |
| Countries: United States, Canada |
| Registered Ohio Address: STATE COLLEGE, Pennsylvania 16801 |
| Registered Ohio Phone Number: 8142787149 |
| Registered Pennsylvania Address: 366 WALKER DR, STATE COLLEGE, Pennsylvania 16801-7085 |
| Registered Pennsylvania Phone Number: |
Addresses listed above are those on file with the relevant regulator.
For data sources see[1]
| Well ID | State/Province | County/Division | Municipality/Subdivision | License/Permit Date | Spud Date | Unconventional | Configuration | Well/License Status | Well Pad ID |
|---|---|---|---|---|---|---|---|---|---|
| 37-019-21584 | PA | Butler | Jackson Township | 2008-09-05 | Y | Vertical Well | |||
| 37-019-21585 | PA | Butler | Jackson Township | 2008-09-05 | Y | Vertical Well | |||
| 37-019-21734 | PA | Butler | Connoquenessing Township | 2010-08-23 | Y | Horizontal Well | |||
| 37-019-21735 | PA | Butler | Connoquenessing Township | 2010-08-23 | Y | Horizontal Well | |||
| 37-019-21736 | PA | Butler | Connoquenessing Township | 2010-08-23 | Y | Horizontal Well | |||
| 37-019-21737 | PA | Butler | Connoquenessing Township | 2010-08-23 | Y | Horizontal Well | |||
| 37-019-21738 | PA | Butler | Connoquenessing Township | 2010-08-23 | Y | Horizontal Well | |||
| 37-019-21740 | PA | Butler | Lancaster Township | N | Vertical Well | ||||
| 37-019-21755 | PA | Butler | Jackson Township | 2010-11-15 | Y | Horizontal Well | |||
| 37-019-21757 | PA | Butler | Jackson Township | 2010-11-15 | Y | Horizontal Well | |||
| 37-019-21758 | PA | Butler | Jackson Township | 2010-11-15 | Y | Horizontal Well | |||
| 37-019-21759 | PA | Butler | Jackson Township | 2010-11-15 | Y | Horizontal Well | |||
| 37-019-21760 | PA | Butler | Jackson Township | 2010-11-15 | Y | Horizontal Well | |||
| 37-019-21761 | PA | Butler | Jackson Township | 2010-11-15 | Y | Horizontal Well | |||
| 37-019-21762 | PA | Butler | Jackson Township | 2010-11-15 | Y | Horizontal Well | |||
| 37-019-21763 | PA | Butler | Jackson Township | 2010-11-15 | Y | Horizontal Well | |||
| 37-019-21783 | PA | Butler | Forward Township | 2011-01-10 | Y | Horizontal Well | |||
| 37-019-21793 | PA | Butler | Forward Township | 2011-02-03 | Y | Horizontal Well | |||
| 37-019-21794 | PA | Butler | Forward Township | 2011-02-03 | Y | Horizontal Well | |||
| 37-019-21795 | PA | Butler | Forward Township | 2011-02-03 | Y | Horizontal Well | |||
| 37-019-21796 | PA | Butler | Forward Township | 2011-02-03 | Y | Horizontal Well | |||
| 37-019-21797 | PA | Butler | Lancaster Township | 2011-02-02 | Y | Horizontal Well | |||
| 37-019-21798 | PA | Butler | Lancaster Township | 2011-02-02 | Y | Horizontal Well | |||
| 37-019-21799 | PA | Butler | Lancaster Township | 2011-02-02 | Y | Horizontal Well | |||
| 37-019-21800 | PA | Butler | Lancaster Township | 2011-02-02 | Y | Horizontal Well | |||
| 37-019-21805 | PA | Butler | Lancaster Township | 2011-02-02 | Y | Horizontal Well | |||
| 37-019-21809 | PA | Butler | Lancaster Township | 2011-02-07 | Y | Horizontal Well | |||
| 37-019-21810 | PA | Butler | Lancaster Township | 2011-02-07 | Y | Horizontal Well | |||
| 37-019-21811 | PA | Butler | Lancaster Township | 2011-02-07 | Y | Horizontal Well | |||
| 37-019-21812 | PA | Butler | Lancaster Township | 2011-02-07 | Y | Horizontal Well | |||
| 37-019-21813 | PA | Butler | Lancaster Township | 2011-02-07 | Y | Horizontal Well | |||
| 37-019-21847 | PA | Butler | Lancaster Township | 2011-04-29 | Y | Horizontal Well | |||
| 37-019-21848 | PA | Butler | Lancaster Township | 2011-04-29 | Y | Horizontal Well | |||
| 37-033-26778 | PA | Clearfield | Cooper Township | 2009-04-28 | Y | Vertical Well | |||
| 37-039-23182 | PA | Crawford | Sparta Township | 1990-01-24 | N | Vertical Well | ABANDONED | ||
| 37-051-20865 | PA | Fayette | Dunbar Township | 1996-09-10 | N | Vertical Well | PLUGGED & ABANDONED | ||
| 37-051-20936 | PA | Fayette | Nicholson Township | 1997-09-26 | N | Vertical Well | PLUGGED & ABANDONED | ||
| 37-051-21245 | PA | Fayette | Menallen Township | 2001-01-03 | N | Vertical Well | |||
| 37-085-21354 | PA | Mercer | New Vernon Township | 1991-08-13 | N | Vertical Well | INACTIVE | ||
| 37-085-22182 | PA | Mercer | Mill Creek Township | 1996-01-12 | N | Vertical Well | PLUGGED & ABANDONED | ||
| 37-085-22275 | PA | Mercer | Mill Creek Township | 1996-08-12 | N | Vertical Well | PLUGGED & ABANDONED | ||
| 37-123-32395 | PA | Warren | Columbus Township | 1982-12-29 | N | Vertical Well | PLUGGED & ABANDONED | ||
| 37-123-38142 | PA | Warren | Glade Township | 1985-10-04 | N | Vertical Well | |||
| 37-123-38208 | PA | Warren | Mead Township | 1985-10-23 | N | Vertical Well | PLUGGED & ABANDONED | ||
| 37-123-38209 | PA | Warren | Mead Township | 1985-10-23 | N | Vertical Well | PLUGGED & ABANDONED | ||
| 37-123-38210 | PA | Warren | Mead Township | 1985-10-23 | N | Vertical Well | PLUGGED & ABANDONED | ||
| 37-123-38225 | PA | Warren | Columbus Township | 1988-12-02 | N | Vertical Well | |||
| 37-123-38492 | PA | Warren | Glade Township | 1986-01-14 | N | Vertical Well | |||
| 37-123-39205 | PA | Warren | Columbus Township | 1984-09-11 | N | Vertical Well | PLUGGED & ABANDONED | ||
| 37-123-40945 | PA | Warren | Columbus Township | 1990-06-25 | N | Vertical Well | PLUGGED & ABANDONED | ||
| 37-123-41054 | PA | Warren | Columbus Township | 1990-10-15 | N | Vertical Well | PLUGGED & ABANDONED | ||
| 37-123-42573 | PA | Warren | Spring Creek Township | 1998-06-25 | N | Vertical Well | |||
| 37-123-42649 | PA | Warren | Freehold Township | 1999-01-21 | N | Vertical Well | |||
| 37-123-42656 | PA | Warren | Freehold Township | 1999-02-04 | N | Vertical Well | ABANDONED | ||
| 37-724663 | PA | Butler | Connoquenessing Township | 2009-11-25 | Y | Horizontal Well |
For data sources see[2][3][4][5][6][7][8][9][10]