| Exito #1HHZ42-371-40573 | Highmark Energy Operating, LLC | Pecos, TX | Permitted | 9,600 | Oct 16, 2026 | — | — |
| Exito #2HHZ42-371-40574 | Highmark Energy Operating, LLC | Pecos, TX | Permitted | 9,600 | Oct 16, 2026 | — | — |
| Exito #3HHZ42-371-40575 | Highmark Energy Operating, LLC | Pecos, TX | Permitted | 9,600 | Oct 16, 2026 | — | — |
| Exito #4HHZ42-371-40576 | Highmark Energy Operating, LLC | Pecos, TX | Drilled | 9,600 | Oct 16, 2026 | — | — |
| Prospero #1HHZ42-383-42287 | Highmark Energy Operating, LLC | Reagan, TXSpraberry (Trend Area) | Permitted | 7,900 | Feb 20, 2026 | — | — |
| Black Oak #3HHZ42-383-42137 | Highmark Energy Operating, LLC | Reagan, TX | Not on schedule | 10,400 | Jun 18, 2025 | — | — |
| Black Oak #1HHZ42-383-42135 | Highmark Energy Operating, LLC | Reagan, TX | Not on schedule | 10,600 | Jun 13, 2025 | — | — |
| Black Oak #2HHZ42-383-42136 | Highmark Energy Operating, LLC | Reagan, TX | Not on schedule | 10,600 | Jun 13, 2025 | — | — |
| Black Oak #4HHZ42-383-42138 | Highmark Energy Operating, LLC | Reagan, TX | Not on schedule | 10,600 | Jun 13, 2025 | — | — |
| Black Oak #6HHZ42-383-42139 | Highmark Energy Operating, LLC | Reagan, TX | Not on schedule | 10,600 | Jun 13, 2025 | — | — |
| Black Oak #5HHZ42-383-42140 | Highmark Energy Operating, LLC | Reagan, TX | Not on schedule | 10,400 | Jun 13, 2025 | — | — |
| Exito #1HHZ42-389-41743 | Highmark Energy Operating, LLC | Reeves, TX | Not on schedule | 13,000 | May 29, 2025 | — | — |
| Conroe Field Unit #162042-339-01555 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,160 | Oct 12, 2011 | — | — |
| Conroe Field Unit #550742-339-01584 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,122 | Oct 6, 2011 | — | — |
| Conroe Field Unit #90342-339-00535 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,186 | May 2, 2001 | — | — |
| Conroe Field Unit #70342-339-00342 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,151 | Mar 13, 2001 | — | — |
| Conroe Field Unit #400642-339-01289 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 10,000 | Nov 8, 2000 | — | — |
| Conroe Field Unit #100242-339-00582 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,133 | Dec 17, 1986 | — | — |
| Conroe Field Unit #202842-339-01660 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,133 | Aug 13, 1985 | — | — |
| Conroe Field Unit #202742-339-01659 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,131 | May 30, 1985 | — | — |
| Conroe Field Unit #205242-339-01344 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,133 | May 3, 1985 | — | — |
| Conroe Field Unit #201242-339-01510 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,105 | Feb 5, 1985 | — | — |
| Conroe Field Unit #330842-339-01207 | Highmark Energy Operating LLC | Montgomery, TXConroe | Temporarily abandonedGas | 5,139 | Mar 4, 1983 | — | — |
| Cso-Arco #142-003-33226 | Highmark Energy Operating LLC | Andrews, TXShafter Lake (San Andres) | ActiveInjection | 7,000 | May 21, 1982 | — | — |
| Fairway /James Lime/ Unit #956242-001-31286 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | PluggedOil | 10,500 | Aug 24, 1981 | — | — |
| University 173 #242-003-05457 | Highmark Energy Operating LLC | Andrews, TXShafter Lake (Clear Fork) | PluggedOil | 8,380 | Oct 13, 1978 | — | — |
| Fairway/James Lime/Unit #817G42-001-00070 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | ActiveGas | 10,070 | — | — | — |
| Fairway /James Lime/ Unit #82342-001-00071 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | ActiveOil | 10,576 | — | — | — |
| Fairway/James Lime/Unit #82442-001-00072 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | PluggedGas | — | — | — | — |
| Fairway /James Lime/ Unit #81442-001-00074 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | PluggedOil | — | — | — | — |
| Fairway /James Lime/ Unit #83942-001-00078 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | PluggedOil | — | — | — | — |
| Fairway /James Lime/ Unit #842G42-001-00084 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | PluggedOil | — | — | — | — |
| Fairway /James Lime/ Unit #84342-001-00085 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | PluggedOil | — | — | — | — |
| Fairway /James Lime/ Unit #747W42-001-00086 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | PluggedOil | — | — | — | — |
| Fairway /James Lime/ Unit #74942-001-00087 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | PluggedOil | — | — | — | — |
| Fairway /James Lime/ Unit #846G42-001-00089 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | PluggedOil | — | — | — | — |
| Fairway/James Lime/Unit #75142-001-00090 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | ActiveGas | 10,041 | — | — | — |
| Fairway /James Lime/ Unit #849G42-001-00091 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | PluggedOil | — | — | — | — |
| Fairway /James Lime/ Unit #85042-001-00092 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | ActiveOil | 9,976 | — | — | — |
| Fairway /James Lime/ Unit #85142-001-00093 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | ActiveOil | 9,959 | — | — | — |
| Fairway /James Lime/ Unit #752WG42-001-00094 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | ActiveInjection | 10,065 | — | — | — |
| Fairway /James Lime/ Unit #77042-001-00095 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | ActiveOil | 9,959 | — | — | — |
| Fairway /James Lime/ Unit #75342-001-00096 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | ActiveOil | 10,103 | — | — | — |
| Fairway /James Lime/ Unit #85342-001-00097 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | ActiveOil | 9,959 | — | — | — |
| Fairway /James Lime/ Unit #85242-001-00098 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | PluggedOil | — | — | — | — |
| Fairway /James Lime/ Unit #85442-001-00100 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | PluggedOil | — | — | — | — |
| Fairway /James Lime/ Unit #95142-001-00101 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | ActiveInjection | 10,350 | — | — | — |
| Fairway /James Lime/ Unit #96442-001-00104 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | PluggedOil | — | — | — | — |
| Fairway /James Lime/ Unit #97242-001-00105 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | PluggedOil | — | — | — | — |
| Fairway /James Lime/ Unit #967W42-001-00106 | Highmark Energy Operating LLC | Anderson, TXFairway (James Lime) | PluggedOil | — | — | — | — |