| Wilson Dude GU -1- #342-357-32212 | Highmark Energy Operating LLC | Ochiltree, TXPan Petro (Cleveland) | Temporarily abandonedGas | 7,600 | Jul 15, 1997 | — | — |
| Jones M. C. #542-357-32211 | Highmark Energy Operating LLC | Ochiltree, TXPan Petro (Cleveland) | ActiveGas | 7,100 | Jul 3, 1997 | — | — |
| Fairway /James Lime/ Unit #742242-213-30777 | Highmark Energy Operating LLC | Henderson, TXFairway (James Lime) | Shut inOil | 10,180 | Jun 11, 1997 | — | — |
| Dude Wilson G U -5- #642-357-32206 | Highmark Energy Operating LLC | Ochiltree, TXPan Petro (Cleveland) | ActiveGas | 7,100 | Jun 11, 1997 | — | — |
| Dude Wilson GU -5- #542-357-32208 | Highmark Energy Operating LLC | Ochiltree, TXPan Petro (Cleveland) | ActiveGas | 7,100 | Jun 11, 1997 | — | — |
| Prentice Northeast Unit #546U42-445-31816 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | PluggedOil | 7,400 | May 9, 1997 | — | — |
| Prentice Northeast Unit #54842-445-31817 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 7,070 | May 9, 1997 | — | — |
| Prentice Northeast Unit #60542-445-31818 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 7,205 | May 9, 1997 | — | — |
| Prentice Northeast Unit #54542-445-31819 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 7,232 | May 9, 1997 | — | — |
| Conroe Field Unit #550942-339-01569 | Highmark Energy Operating LLC | Montgomery, TXConroe | PluggedOil | 5,094 | Dec 12, 1996 | — | — |
| Prentice Northeast Unit #75142-445-31804 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 7,225 | Dec 2, 1996 | — | — |
| Prentice Northeast Unit #56942-445-31786 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 7,014 | Oct 21, 1996 | — | — |
| Prentice Northeast Unit #57442-445-31787 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | PluggedOil | 7,150 | Oct 21, 1996 | — | — |
| Prentice Northeast Unit #58042-445-31788 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveInjection | 7,140 | Oct 21, 1996 | — | — |
| Prentice Northeast Unit #59942-445-31789 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 7,000 | Oct 21, 1996 | — | — |
| Prentice Northeast Unit #60442-445-31790 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | PluggedOil | 7,150 | Oct 21, 1996 | — | — |
| Prentice Northeast Unit #61542-445-31791 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 7,470 | Oct 21, 1996 | — | — |
| Prentice Northeast Unit #62942-445-31792 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | PluggedOil | 7,150 | Oct 21, 1996 | — | — |
| Prentice Northeast Unit #632L42-445-31793 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 7,050 | Oct 21, 1996 | — | — |
| Prentice Northeast Unit #658L42-445-31794 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveInjection | 7,080 | Oct 21, 1996 | — | — |
| Prentice Northeast Unit #65942-445-31797 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | PluggedOil | 7,150 | Oct 21, 1996 | — | — |
| Prentice Northeast Unit #68942-445-31801 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 7,125 | Oct 21, 1996 | — | — |
| Prentice Northeast Unit #69542-445-31802 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 7,270 | Oct 21, 1996 | — | — |
| Prentice Northeast Unit #75742-445-31776 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 7,342 | Oct 16, 1996 | — | — |
| Prentice Northeast Unit #75542-445-31777 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 7,305 | Oct 16, 1996 | — | — |
| Prentice Northeast Unit #74942-445-31778 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 7,135 | Oct 16, 1996 | — | — |
| Prentice Northeast Unit #72342-445-31779 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 7,210 | Oct 16, 1996 | — | — |
| Prentice Northeast Unit #71942-445-31780 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 7,115 | Oct 16, 1996 | — | — |
| Prentice Northeast Unit #71842-445-31781 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 7,154 | Oct 16, 1996 | — | — |
| Prentice Northeast Unit #716U42-445-31782 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveInjection | 7,126 | Oct 16, 1996 | — | — |
| Prentice Northeast Unit #72142-445-31784 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 7,185 | Oct 16, 1996 | — | — |
| Prentice Northeast Unit #72042-445-31772 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 7,240 | Oct 4, 1996 | — | — |
| Prentice Northeast Unit #69442-445-31773 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveInjection | 7,260 | Oct 4, 1996 | — | — |
| Prentice Northeast Unit #722L42-445-31774 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | PluggedOil | 7,500 | Oct 4, 1996 | — | — |
| Conroe Field Unit #371342-339-00491 | Highmark Energy Operating LLC | Montgomery, TXConroe | ActiveGas | 5,175 | Aug 26, 1996 | — | — |
| Conroe Field Unit #42642-339-00702 | Highmark Energy Operating LLC | Montgomery, TXConroe | Temporarily abandonedGas | 5,113 | Aug 26, 1996 | — | — |
| Fairway /James Lime/ Unit #645342-213-30767 | Highmark Energy Operating LLC | Henderson, TXFairway (James Lime) | PluggedOil | 10,500 | Aug 19, 1996 | — | — |
| Fairway /James Lime/ Unit #745242-213-30768 | Highmark Energy Operating LLC | Henderson, TXFairway (James Lime) | ActiveOil | 10,165 | Aug 19, 1996 | — | — |
| Prentice Northeast Unit #57342-445-31763 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 7,070 | Aug 1, 1996 | — | — |
| Prentice Northeast Unit #661U42-445-31764 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveInjection | 7,110 | Jul 30, 1996 | — | — |
| Prentice Northeast Unit #62042-445-31765 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | PluggedOil | 8,000 | Jul 26, 1996 | — | — |
| Prentice Northeast Unit #64342-445-31766 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | PluggedOil | 7,500 | Jul 26, 1996 | — | — |
| Prentice Northeast Unit #645W42-445-31767 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | PluggedOil | 7,500 | Jul 26, 1996 | — | — |
| Prentice Northeast Unit #64842-445-31768 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | Shut inOil | 7,420 | Jul 26, 1996 | — | — |
| Shafter Lake Clearfork Unit #12542-003-37906 | Highmark Energy Operating LLC | Andrews, TXShafter Lake (Clear Fork) | Shut inOil | 7,032 | Jul 5, 1996 | — | — |
| Shafter Lake Clearfork Unit #22542-003-37907 | Highmark Energy Operating LLC | Andrews, TXShafter Lake (Clear Fork) | PluggedOil | 7,200 | Jul 5, 1996 | — | — |
| University -154- #2342-003-37903 | Highmark Energy Operating LLC | Andrews, TXShafter Lake (Clear Fork) | Shut inOil | 7,051 | Jul 2, 1996 | — | — |
| University -154- #2242-003-37904 | Highmark Energy Operating LLC | Andrews, TXShafter Lake (Clear Fork) | ActiveOil | 7,054 | Jul 2, 1996 | — | — |
| Prentice Northeast Unit #72742-445-31754 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 7,280 | Jul 2, 1996 | — | — |
| Prentice Northeast Unit #72542-445-31755 | Highmark Energy Operating LLC | Terry, TXPrentice (6700) | ActiveOil | 7,275 | Jul 2, 1996 | — | — |