| Columbus Field Unit #50442-089-00060 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveOil | 9,767 | Jan 31, 2022 | 7 | Apr 2026 |
| Columbus Field Unit #50142-089-00027 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveOil | 10,754 | Jul 19, 2001 | 4 | Apr 2026 |
| Columbus Field Unit #100842-089-00304 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | Temporarily abandonedGas | 10,267 | Feb 18, 2000 | 4 | Jul 2013 |
| Columbus Field Unit #170442-089-00035 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveGas | 10,288 | Jan 28, 2000 | 1 | Apr 2026 |
| Columbus Field Unit #101842-089-31723 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | Temporarily abandonedGas | 10,630 | Dec 13, 1999 | 8 | Aug 2001 |
| Moebes Leona K. #1 U42-089-00054 | Mosaic Oil LLC only | ColoradoColumbus (6-B Wilcox) | Shut inOil | 10,500 | Dec 9, 1999 | 2 | Sep 2016 |
| Hastedt Emma #642-089-00046 | Dune Operating Company only | ColoradoColumbus (11-B) | PluggedGas | 9,800 | Jul 22, 1999 | 3 | — |
| Columbus Field Unit #101642-089-00808 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveOil | 8,938 | May 18, 1999 | 4 | Apr 2026 |
| Columbus Field Unit #101542-089-00824 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveGas | 10,424 | May 17, 1999 | 6 | Apr 2026 |
| Columbus Field Unit #60342-089-00056 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | Temporarily abandonedGas | 10,217 | May 7, 1999 | 1 | Oct 2020 |
| Columbus Field Unit #101242-089-00300 | Devon Energy Production Co L.P. only | ColoradoColumbus (Consolidated) | PluggedGas | 10,450 | Apr 14, 1999 | 6 | Apr 2026 |
| Columbus Field Unit #101342-089-00825 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | Shut inOil | 10,315 | Dec 3, 1998 | 6 | Apr 2026 |
| Columbus Field Unit #100942-089-00037 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveGas | 9,750 | Jul 24, 1998 | 1 | Apr 2026 |
| Columbus Field Unit #170342-089-00310 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | Temporarily abandonedGas | 9,814 | Jul 7, 1998 | 1 | Apr 2019 |
| Columbus Field Unit #102142-089-31810 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveOil | 9,910 | Aug 21, 1997 | 4 | Apr 2026 |
| Columbus Field Unit #170542-089-00309 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | Temporarily abandonedGas | 10,286 | Aug 1, 1997 | 2 | Oct 2004 |
| Columbus Field Unit #10542-089-00038 | Rusk Energy Operating LLC only | ColoradoWildcat | Temporarily abandonedGas | 10,503 | May 28, 1997 | 1 | Apr 2026 |
| Columbus Field Unit #100442-089-00041 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | Temporarily abandonedGas | 10,510 | Apr 21, 1997 | 1 | Aug 1996 |
| Columbus Field Unit #1023D42-089-32042 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveInjection | 4,230 | Apr 18, 1997 | 2 | Apr 2026 |
| Columbus Field Unit #101442-089-00805 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | Temporarily abandonedGas | 8,950 | Jan 31, 1997 | 4 | Apr 2026 |
| Columbus Field Unit #6142-089-00044 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | PluggedOil | 8,400 | Oct 4, 1996 | 1 | Apr 2026 |
| Columbus Field Unit #102242-089-31811 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveOil | 10,400 | Jul 16, 1996 | 3 | Apr 2026 |
| Columbus Field Unit #110142-089-00063 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | Temporarily abandonedGas | 9,800 | Jul 8, 1996 | 5 | Nov 2020 |
| Columbus Field Unit #110242-089-00073 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveOil | 8,600 | Feb 21, 1996 | 2 | Apr 2026 |
| Columbus Field Unit #107 U42-089-00303 | Devon Energy Operating Co. L.P. only | ColoradoColumbus | PluggedOil | 10,252 | Oct 20, 1995 | 2 | Aug 2001 |
| Columbus Field Unit #4242-089-00028 | Devon Energy Operating Co. L.P. only | ColoradoColumbus | PluggedOil | 9,678 | Nov 15, 1994 | 3 | Aug 2001 |
| Hastedt Emma B #342-089-00048 | Strand Energy L.C. only | ColoradoColumbus (Consolidated) | Shut inOil | 10,495 | Oct 4, 1994 | 4 | Apr 2026 |
| Cullen H. R. et al #642-089-00804 | Dune Operating Company only | ColoradoColumbus (Consolidated) | PluggedGas | 10,500 | Oct 28, 1993 | 11 | Feb 2002 |
| Columbus Field Unit #60542-089-00810 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | Temporarily abandonedGas | 9,562 | Sep 20, 1993 | 6 | Apr 2026 |
| Columbus Field Unit #60442-089-00036 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveOil | 10,500 | Jul 27, 1992 | 1 | Apr 2026 |
| Columbus Field Unit #4142-089-00029 | Devon Energy Operating Co. L.P. only | ColoradoColumbus | PluggedOil | 9,364 | Jun 3, 1991 | 1 | Aug 2001 |
| Columbus Field Unit #170742-089-00034 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | Temporarily abandonedGas | 9,760 | May 31, 1991 | 2 | May 2011 |
| Columbus Field Unit #1103 L42-089-00314 | OXY USA Inc. only | ColoradoColumbus (11-F-N) | PluggedOil | 10,231 | Mar 12, 1991 | 1 | — |
| Columbus Field Unit #101942-089-31789 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveOil | 9,772 | Mar 8, 1991 | 2 | Apr 2026 |
| Columbus Field Unit #6242-089-00055 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveOil | 10,205 | May 29, 1990 | 1 | Apr 2026 |
| Columbus Field Unit #100242-089-00039 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveOil | 9,498 | Jan 17, 1990 | 2 | Apr 2026 |
| Columbus Field Unit #100342-089-00306 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveOil | 9,800 | Oct 20, 1989 | 2 | Apr 2026 |
| Columbus Field Unit #101042-089-00040 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | ActiveOil | 10,504 | — | 0 | — |
| Hastedt Emma #742-089-00062 | Strand Energy L.C. only | ColoradoColumbus (Consolidated) | PluggedOil | — | — | 0 | — |
| Columbus Field Unit #106D42-089-00302 | Rusk Energy Operating LLC only | ColoradoColumbus (Consolidated) | PluggedOil | — | — | 0 | — |
| Moebes Leona K. #3D42-089-00971 | Mosaic Oil LLC only | ColoradoColumbus | Shut inOil | 2,530 | — | 0 | — |
| Cullen et al #1D42-089-00972 | Strand Energy L.C. only | ColoradoColumbus | PluggedOil | — | — | 0 | — |