| Prentice Northeast Unit #22842-445-31338 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 6,912 | Apr 23, 1985 | — | — |
| Prentice Northeast Unit #19942-445-31339 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,912 | Apr 23, 1985 | — | — |
| Prentice Northeast Unit #21642-445-31340 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | PluggedOil | 7,000 | Apr 23, 1985 | — | — |
| Prentice Northeast Unit #19442-445-31342 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,906 | Apr 23, 1985 | — | — |
| Prentice Northeast Unit #21542-445-31344 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 6,903 | Apr 23, 1985 | — | — |
| Prentice Northeast Unit #23042-445-31345 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,908 | Apr 23, 1985 | — | — |
| Prentice Northeast Unit #24742-445-31346 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 6,882 | Apr 23, 1985 | — | — |
| Prentice Northeast Unit #23142-445-31347 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,889 | Apr 23, 1985 | — | — |
| Prentice Northeast Unit #20542-445-31298 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,942 | Apr 22, 1985 | — | — |
| Prentice Northeast Unit #24342-445-31299 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | PluggedOil | 7,000 | Apr 22, 1985 | — | — |
| Prentice Northeast Unit #25142-445-31292 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,861 | Apr 18, 1985 | — | — |
| Prentice Northeast Unit #24842-445-31293 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 6,870 | Apr 18, 1985 | — | — |
| Prentice Northeast Unit #25642-445-31294 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,914 | Apr 18, 1985 | — | — |
| Prentice Northeast Unit #23942-445-31295 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 6,963 | Apr 18, 1985 | — | — |
| Prentice Northeast Unit #21442-445-31296 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 6,900 | Apr 18, 1985 | — | — |
| Prentice Northeast Unit #23542-445-31297 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,887 | Apr 18, 1985 | — | — |
| Prentice Northeast Unit #19842-445-31301 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,916 | Apr 18, 1985 | — | — |
| Prentice Northeast Unit #19142-445-31302 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,786 | Apr 18, 1985 | — | — |
| Prentice Northeast Unit #18642-445-31303 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,918 | Apr 18, 1985 | — | — |
| Prentice Northeast Unit #18342-445-31304 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,815 | Apr 18, 1985 | — | — |
| Prentice Northeast Unit #17942-445-31305 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,858 | Apr 18, 1985 | — | — |
| Prentice Northeast Unit #21042-445-31306 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 6,940 | Apr 18, 1985 | — | — |
| Prentice Northeast Unit #19342-445-31307 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 6,860 | Apr 18, 1985 | — | — |
| Prentice Northeast Unit #17442-445-31308 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 6,857 | Apr 18, 1985 | — | — |
| Conroe Field Unit #181842-339-30709 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,640 | Mar 20, 1985 | — | — |
| Conroe Field Unit #211542-339-30711 | Highmark Energy Operating LLC | Montgomery, TXConroe | Temporarily abandonedGas | 5,100 | Mar 20, 1985 | — | — |
| Conroe Field Unit #391042-339-30712 | Highmark Energy Operating LLC | Montgomery, TXConroe | Temporarily abandonedGas | 5,700 | Mar 20, 1985 | — | — |
| Keystone Cattle Co. #37242-495-31915 | Highmark Energy Operating LLC | Winkler, TXFlying -W- | Shut inOil | 10,537 | Mar 14, 1985 | — | — |
| Shell-Perkins #842-003-34820 | Highmark Energy Operating LLC | Andrews, TXDeep Rock (Penn.) | Shut inOil | 9,400 | Mar 12, 1985 | — | — |
| Conroe Field Unit #353242-339-30708 | Highmark Energy Operating LLC | Montgomery, TXConroe | Shut inOil | 5,237 | Feb 19, 1985 | — | — |
| Conroe Field Unit #353142-339-30707 | Highmark Energy Operating LLC | Montgomery, TXConroe | Temporarily abandonedGas | 5,350 | Feb 12, 1985 | — | — |
| Conroe Field Unit #201242-339-01510 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,105 | Feb 5, 1985 | — | — |
| Conroe Field Unit #207742-339-30706 | Highmark Energy Operating LLC | Montgomery, TXConroe | ActiveGas | 5,392 | Feb 5, 1985 | — | — |
| Conroe Field Unit #109D42-339-30702 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,665 | Jan 23, 1985 | — | — |
| Cabot University Lands #101542-003-34678 | Highmark Energy Operating LLC | Andrews, TXShafter Lake (San Andres) | Shut inOil | 5,900 | Jan 15, 1985 | — | — |
| Davis L. T. #742-003-31770 | Highmark Energy Operating LLC | Andrews, TXFuhrman-Mascho | PluggedOil | 6,200 | Jan 7, 1985 | — | — |
| Conroe Field Unit #194742-339-30700 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,670 | Dec 31, 1984 | — | — |
| Shell-Perkins #742-003-34649 | Highmark Energy Operating LLC | Andrews, TXDeep Rock (Penn.) | PluggedOil | 9,500 | Dec 28, 1984 | — | — |
| Conroe Field Unit #101742-339-30694 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,670 | Dec 13, 1984 | — | — |
| Conroe Field Unit #362142-339-30687 | Highmark Energy Operating LLC | Montgomery, TXConroe | Temporarily abandonedGas | 5,080 | Nov 13, 1984 | — | — |
| Conroe Field Unit #362042-339-30674 | Highmark Energy Operating LLC | Montgomery, TXConroe | Temporarily abandonedGas | 5,115 | Sep 7, 1984 | — | — |
| Conroe Field Unit #194642-339-30676 | Highmark Energy Operating LLC | Montgomery, TXConroe | Shut inOil | 5,150 | Sep 7, 1984 | — | — |
| Prentice Northeast Unit #164A42-445-31241 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 7,017 | Sep 6, 1984 | — | — |
| King E. F. #9W42-003-34467 | Highmark Energy Operating LLC | Andrews, TXFuhrman-Mascho | ActiveInjection | 4,470 | Aug 27, 1984 | — | — |
| King E. F. #8W42-003-34468 | Highmark Energy Operating LLC | Andrews, TXFuhrman-Mascho | Shut inOil | 4,473 | Aug 27, 1984 | — | — |
| Prentice Northeast Unit #163A42-445-31238 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 6,969 | Aug 24, 1984 | — | — |
| King E. F. #5W42-003-34455 | Highmark Energy Operating LLC | Andrews, TXFuhrman-Mascho | PluggedOil | 4,950 | Aug 20, 1984 | — | — |
| Shell-Perkins #542-003-34451 | Highmark Energy Operating LLC | Andrews, TXDeep Rock (Penn.) | Shut inOil | 9,575 | Aug 17, 1984 | — | — |
| Shell-Perkins #642-003-34452 | Highmark Energy Operating LLC | Andrews, TXDeep Rock (Penn.) | PluggedOil | 9,500 | Aug 17, 1984 | — | — |
| Davis L. T. #15W42-003-34447 | Highmark Energy Operating LLC | Andrews, TXFuhrman-Mascho | Shut inOil | 4,450 | Aug 15, 1984 | — | — |