| Cowden J O-10-38603 | Goldsmith (Clear Fork) | Ector | 2 | 8.84K | 83.9K | Nov 2006 – Apr 2026 |
| TXL O-10-52153 | Andector (Wichita Albany) | Ector | 1 | 3.43K | 2.76K | Oct 2015 – Apr 2026 |
| Cowden K O-10-38604 | Goldsmith (Clear Fork) | Ector | 2 | 5.5K | 38K | Nov 2006 – May 2025 |
| Cowden S O-10-39035 | Goldsmith, N. (San Andres, Con.) | Ector | 2 | 26.4K | 36.9K | Aug 2008 – Feb 2025 |
| Bum -C- O-10-32246 | Goldsmith, N. (San Andres, Con.) | Ector | 1 | 28.5K | 264K | Jan 1993 – Aug 2023 |
| Cowden H O-10-38602 | Goldsmith (Clear Fork) | Ector | 1 | 3.6K | 22.1K | Nov 2006 – Aug 2023 |
| Cowden,r.b. O-10-23013 | Goldsmith, N. (San Andres, Con.) | Andrews | 1 | 14.7K | 159K | Jan 1993 – Jun 2023 |
| Cowden -F- O-10-37576 | Block 11 (Wichita) | Andrews | 1 | 8.73K | 111K | Sep 2005 – Jun 2023 |
| Cowden -F- O-10-31927 | Goldsmith, N. (San Andres, Con.) | Ector | 3 | 110K | 287K | Jan 1993 – May 2023 |
| Cowden 2-VV O-10-39216 | Embar (Permian) | Andrews | 6 | 7.45K | 73.3K | Aug 2008 – Aug 2022 |
| Cowden 2-V O-10-30731 | Goldsmith, N. (San Andres, Con.) | Andrews | 6 | 55K | 596K | Jan 1993 – Jan 2022 |
| Cowden "H" O-10-35523 | Goldsmith, N. (San Andres, Con.) | Ector | 1 | 13.6K | 63.9K | Sep 1997 – Apr 2019 |
| Cowden F O-10-46133 | Goldsmith | Ector | 1 | 7.5K | 2.89K | Oct 2011 – May 2018 |
| Cowden, R. B. -A- O-10-27032 | Goldsmith | Ector | 6 | 74.2K | 221K | Jan 1993 – Oct 2017 |
| R. B. Cowden 2-2 O-10-41294 | Goldsmith (Clear Fork) | Andrews | 1 | 4.89K | 7.75K | Sep 2010 – Jun 2016 |
| Cowden, R. B. -A- O-10-27605 | Goldsmith, N. (San Andres, Con.) | Ector | 2 | 11.4K | 286K | Jan 1993 – May 2016 |
| TXL O-10-29564 | TXL (Devonian) | Ector | 1 | 38.2K | 84.1K | Jan 1993 – Sep 2015 |
| Cowden, R.B. F 10-1 O-10-35113 | Goldsmith, N. (San Andres, Con.) | Ector | 1 | 30.2K | 119K | Sep 1996 – Dec 2013 |
| Father Mulcahy O-10-37413 | Goldsmith (Grayburg) | Ector | 1 | 9.49K | 0 | Mar 2004 – Oct 2011 |
| Cowden 2-VV O-10-9918 | Embar (5600) | Andrews | 7 | 14.6K | 250K | Jan 1993 – Jul 2008 |
| Cowden S O-10-38606 | Goldsmith (Clear Fork) | Ector | 2 | 1.66K | 9.32K | Nov 2006 – Jul 2008 |
| Cowden S O-10-12457 | Goldsmith (5600) | Ector | 2 | 14.6K | 81.8K | Jan 1993 – Oct 2006 |
| Cowden J O-10-8695 | Goldsmith (5600) | Ector | 2 | 12.5K | 116K | Jan 1993 – Oct 2006 |
| Cowden K O-10-8834 | Goldsmith (5600) | Ector | 2 | 10K | 49.3K | Oct 1993 – Oct 2006 |
| Cowden H O-10-8479 | Goldsmith (5600) | Ector | 5 | 4.46K | 34.1K | Jan 1993 – Oct 2006 |
| Father Mulcahy O-10-36579 | Mash (Devonian) | Ector | 1 | 1.94K | 0 | Apr 2001 – Feb 2004 |
| R. B. Cowden 2-2 O-10-27703 | Goldsmith, N. (San Andres, Con.) | Andrews | 1 | 1.32K | 26.8K | Jan 1993 – May 2002 |
| Cowden B O-10-18524 | Goldsmith, N. (San Andres, Con.) | Ector | 2 | 3.16K | 2.36K | Jan 1993 – Jan 1999 |
| Cowden -F- No. 3 O-10-28218 | Goldsmith, N. (Silurian) | Andrews | 1 | 205 | 1.16K | Jan 1993 – Feb 1997 |
| Cowden -F- 10-1 O-10-31726 | Goldsmith (5600) | Ector | 1 | 3.77K | 8.34K | Jan 1993 – Aug 1996 |
| Cowden -F- O-10-28123 | Block 11 (Wichita) | Andrews | 1 | 353 | 4.79K | Jan 1993 – Nov 1993 |
| Cowden M O-10-18525 | Goldsmith, N. (San Andres, Con.) | Ector | 2 | 4 | 9 | Jan 1993 – Nov 1993 |
| Cowden, R. B. O-10-18522 | Goldsmith, N. (San Andres, Con.) | Ector | 6 | 11 | 2 | Jan 1993 – Feb 1993 |
| Cowden -F- O-10-38608 | Goldsmith (Clear Fork) | Ector | 2 | 0 | 0 | — |
| Cowden -F- 10-1 O-10-38609 | Goldsmith (Clear Fork) | Ector | 1 | 0 | 0 | — |
| Cowden -F- O-10-30766 | Goldsmith (5600) | Ector | 3 | 0 | 0 | — |
| Bum -C- O-10-30091 | Goldsmith (5600) | Ector | 1 | 0 | 0 | — |
| Bum -C- O-10-38607 | Goldsmith (Clear Fork) | Ector | 1 | 0 | 0 | — |
| Cowden D O-10-38605 | Goldsmith (Clear Fork) | Ector | 1 | 0 | 0 | — |
| Cowden D O-10-10058 | Goldsmith (5600) | Ector | 2 | 0 | 0 | — |