| University -F- #6 L42-003-10468 | Highmark Energy Operating LLC | AndrewsShafter Lake (Devonian) | ActiveOil | 9,739 | Oct 2, 2024 | 1 | Apr 2026 |
| Covington Ella B #1742-445-31398 | Highmark Energy Operating LLC | TerrySuntura (Lower Clear Fork) | ActiveOil | 8,300 | Aug 15, 2019 | 2 | Apr 2026 |
| Covington Ella B #22R42-445-32457 | Highmark Energy Operating LLC | TerrySuntura (Lower Clear Fork) | ActiveOil | 8,492 | Nov 5, 2018 | 1 | Apr 2026 |
| Covington Ella B #2942-445-32454 | Highmark Energy Operating LLC | TerrySuntura (Lower Clear Fork) | ActiveOil | 8,501 | Sep 4, 2018 | 1 | Apr 2026 |
| Covington Ella B #2342-445-32452 | Highmark Energy Operating LLC | TerrySuntura (Lower Clear Fork) | ActiveOil | 8,483 | Aug 29, 2017 | 1 | Apr 2026 |
| Covington Ella B #2142-445-32451 | Highmark Energy Operating LLC | TerrySuntura (Lower Clear Fork) | ActiveOil | 8,500 | Aug 15, 2017 | 2 | Apr 2026 |
| University -C- #442-003-01426 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | PluggedOil | 12,308 | Feb 9, 2017 | 4 | Apr 2020 |
| Covington Ella B #2042-445-32436 | Highmark Energy Operating LLC | TerrySuntura (Lower Clear Fork) | ActiveOil | 8,513 | Aug 22, 2016 | 3 | Apr 2026 |
| University 153 #7 L42-003-05365 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | PluggedOil | 6,775 | Sep 16, 2014 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #507842-003-39235 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveOil | 6,999 | Mar 9, 2011 | 3 | Apr 2026 |
| Shafter Lake Clearfork Unit #505R42-003-40909 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 6,847 | Nov 13, 2008 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #5245W42-003-39249 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveInjection | 6,995 | May 17, 2004 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #5267W42-003-39239 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveInjection | 6,998 | May 6, 2004 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #5278W42-003-39240 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveInjection | 7,000 | May 6, 2004 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #405642-003-39241 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 7,007 | May 6, 2004 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #403442-003-39232 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 7,026 | Apr 29, 2004 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #504542-003-39238 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 7,019 | Apr 7, 2004 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #506742-003-39234 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveOil | 7,015 | Apr 5, 2004 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #425642-003-39236 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 7,005 | Apr 5, 2004 | 2 | Apr 2026 |
| Shafter Lake Clearfork Unit #406742-003-39237 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveOil | 7,025 | Apr 5, 2004 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #404542-003-39233 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 7,015 | Apr 1, 2004 | 1 | Apr 2026 |
| Covington Ella B #1942-445-32039 | Highmark Energy Operating LLC | TerrySuntura (Lower Clear Fork) | Shut inOil | 8,564 | Mar 5, 2004 | 1 | Apr 2026 |
| Prentice Northeast Unit #55842-445-31983 | Highmark Energy Operating LLC | TerryPrentice (6700) | ActiveOil | 8,401 | Jan 9, 2004 | 2 | Apr 2026 |
| University -141- #1HZ42-003-05343 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | PluggedOil | 9,980 | Aug 19, 2002 | 2 | May 2021 |
| University I #142-003-30617 | Highmark Energy Operating LLC | AndrewsShafter Lake (Yates) | Temporarily abandonedGas | 6,956 | Jul 30, 2002 | 1 | Jan 2022 |
| Covington Ella B #1842-445-31986 | Highmark Energy Operating LLC | TerrySuntura (Lower Clear Fork) | ActiveInjection | 8,516 | Jul 29, 2002 | 2 | Apr 2026 |
| Shafter Lake Clearfork Unit #602142-003-38890 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveOil | 6,998 | Sep 19, 2001 | 1 | Apr 2026 |
| University San Andres Unit #3742-003-10505 | Highmark Energy Operating LLC | AndrewsShafter Lake (San Andres) | PluggedOil | 7,108 | Aug 9, 2001 | 1 | Apr 2026 |
| University -F- #342-003-07312 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveOil | 9,932 | Nov 16, 2000 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #725W42-003-38569 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 7,073 | Jan 28, 2000 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #407142-003-38436 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 7,023 | May 27, 1998 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #425W42-003-38283 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveInjection | 7,030 | Sep 19, 1997 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #424W42-003-38284 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveInjection | 7,029 | Sep 19, 1997 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #325W42-003-38285 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 7,010 | Sep 19, 1997 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #12542-003-37906 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 7,032 | Jul 5, 1996 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #22542-003-37907 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | PluggedOil | 7,200 | Jul 5, 1996 | 1 | Apr 2026 |
| University -154- #2342-003-37903 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 7,051 | Jul 2, 1996 | 1 | Apr 2026 |
| University -154- #2242-003-37904 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveOil | 7,054 | Jul 2, 1996 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #603142-003-37872 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveOil | 7,050 | Jun 3, 1996 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #422W42-003-37873 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveInjection | 7,040 | Jun 3, 1996 | 2 | Apr 2026 |
| Shafter Lake Clearfork Unit #624W42-003-37874 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveInjection | 7,054 | Jun 3, 1996 | 2 | Apr 2026 |
| Shafter Lake Clearfork Unit #62342-003-37875 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 7,050 | Jun 3, 1996 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #52442-003-37876 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 7,050 | Jun 3, 1996 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #523W42-003-37877 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 7,050 | Jun 3, 1996 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #423W42-003-37878 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveInjection | 7,050 | Jun 3, 1996 | 1 | Apr 2026 |
| University -154- #542-003-05369 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | Shut inOil | 9,888 | Oct 19, 1995 | 3 | Apr 2026 |
| University 174 #342-003-05466 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | PluggedOil | 9,900 | Aug 25, 1995 | 2 | Jan 2002 |
| Shafter Lake Clearfork Unit #30242-003-30249 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | PluggedOil | 7,100 | Jul 11, 1995 | 2 | Apr 2026 |
| Shafter Lake Clearfork Unit #50442-003-04663 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | PluggedOil | 9,880 | May 24, 1995 | 1 | Apr 2026 |
| Shafter Lake Clearfork Unit #50342-003-04568 | Highmark Energy Operating LLC | AndrewsShafter Lake (Clear Fork) | ActiveOil | 9,896 | May 17, 1995 | 1 | Apr 2026 |