| Buster O-10-34339 | Baker Operating, Inc. only | TXL (Wolfcamp, North) | Ector | 1 | 43.5K | 1.9K | Nov 1994 – Apr 2026 |
| Parker, J. E. O-10-36160 | OXY USA Inc. only | TXL (Wichita Albany, South) | Ector | 2 | 43.4K | 86.3K | Dec 1999 – Aug 2015 |
| Ratliff Ranch -I- O-10-34082 | Diamondback E&P LLC only | Headlee, N. (Devonian) | Ector | 1 | 43.3K | 389K | Jan 1994 – Apr 2026 |
| Averitt, W.T. III O-10-29247 | Diamondback E&P LLC only | Moose (Wolfcamp) | Ector | 1 | 43.2K | 132K | Jan 1993 – Apr 2026 |
| Cowden, R.B. "12" O-10-33923 | Barrow Petroleum LLC only | Andector (Wichita Albany) | Ector | 3 | 42.8K | 320K | Aug 1993 – Aug 2017 |
| Phillips-Slator -26- O-10-28865 | Forest Oil Permian Corporation only | Goldsmith (5600) | Ector | 3 | 42.5K | 22.8K | Jan 1993 – Oct 2006 |
| TXL -S- O-10-16670 | Drake Oil & Gas, LLC only | TXL (Wolfcamp, North) | Ector | 2 | 42.5K | 39.5K | Jan 1993 – Apr 2026 |
| Moss, Paul -38- PE O-10-20282 | Aghorn Operating, Inc. only | Harper, SE. (Ellen.) | Ector | 1 | 42.4K | 63.6K | Jan 1993 – Feb 2026 |
| Wheeler, A. E. O-10-18612 | Petex only | Wheeler (Silurian) | Ector | 1 | 42.4K | 275K | Jan 1993 – Apr 2026 |
| CVX 1 O-10-39603 | Crescent Energy Operating, LLC only | Goldsmith | Ector | 2 | 42.3K | 67.9K | Aug 2009 – Apr 2025 |
| Txl"o" O-10-22969 | OXY USA WTP EOR, LLC only | Goldsmith, W. (Waddell) | Ector | 1 | 42.3K | 84K | Jan 1993 – Nov 2007 |
| TXL Devonian Main Pay Unit G-10-130405 | OXY USA WTP EOR, LLC only | TXL (Devonian-Main Pay) | Ector | 1 | 42.1K | 802K | Jan 1993 – May 2019 |
| Witcher, J. E. PA Unit O-10-28955 | Occidental Permian Ltd. only | Cowden, South (Canyon 8790) | Ector | 1 | 42.1K | 60.3K | Jan 1993 – Nov 2025 |
| Johnson -B-37- O-10-31342 | Slant Operating, LLC only | Cowden, North (Canyon) | Ector | 4 | 41.8K | 14.8K | Jan 1993 – Jul 1998 |
| Johnson, J. L. -A- O-10-26673 | Occidental Permian Ltd. only | Cowden, South (Canyon 8790) | Ector | 1 | 41.8K | 53.1K | Jan 1993 – May 2006 |
| Cummins, H. E. -C- O-10-31501 | Scout Energy Management LLC only | Goldsmith, W. (Fusselman) | Ector | 1 | 41.8K | 62.4K | Jan 1993 – Mar 2026 |
| Meteor Crater B O-10-37374 | OXY USA WTP LP only | Cowden, South (Canyon 8790) | Ector | 1 | 41.6K | 700K | May 2004 – Apr 2026 |
| Phillips-Texaco "23A" O-10-29753 | Forest Oil Permian Corporation only | Goldsmith (5600) | Ector | 1 | 41.6K | 31.5K | Jan 1993 – Oct 2006 |
| T. X. L. -L- a/C #1 O-10-6921 | Formentera Operations LLC only | TXL (Devonian) | Ector | 3 | 41.4K | 270K | Jan 1993 – Oct 2014 |
| Henderson, W. B. "D" O-10-24149 | Henderson, Bryan, Co. only | Cowden, South (Canyon 8790) | Ector | 2 | 41.1K | 133K | Jan 1993 – May 2008 |
| Cowden, J. F. O-10-240 | Diamond S Energy Company only | Andector (Waddell) | Ector | 4 | 41K | 450K | Jan 1993 – Apr 2026 |
| Edwards O-10-14739 | Baker Operating, Inc. only | Double -H- (Grayburg) | Ector | 4 | 40.9K | 24.3K | Jan 1993 – Apr 2026 |
| Henderson,w.b.unit "B" O-10-23641 | Henderson, Bryan, Co. only | Cowden, South (Canyon 8790) | Ector | 2 | 40.9K | 25.6K | Jan 1993 – Sep 2014 |
| Ward -A- O-10-29128 | Bluco Production Co., Inc. only | Cowden, South | Ector | 2 | 40.9K | 1.36K | Jan 1993 – Jun 2020 |
| Headlee Devonian Unit PF Record G-10-132651 | Diamondback E&P LLC only | Headlee (Devonian) | Ector | 1 | 40.8K | 437M | Jan 1993 – Apr 2026 |
| Southwest O-10-26790 | Incline Energy only | Harper (Devonian) | Ector | 1 | 40.8K | 32.6K | Jan 1993 – Jul 2008 |
| Fasken, David "BE" O-10-24164 | Fasken Oil and Ranch, Ltd. only | Fasken (Penn.) | Ector | 2 | 40.7K | 374K | Jan 1993 – Nov 2022 |
| Parker, J. E. -A- O-10-26749 | Nicki T Oil & Gas LLC only | Harper | Ector | 3 | 40.5K | 27.3K | Jan 1993 – Mar 2026 |
| Foster, H. -A- O-10-30325 | Endeavor Energy Resources L.P. only | Cowden, South (Canyon 8790) | Ector | 1 | 40.5K | 74.7K | Jan 1993 – May 2006 |
| Cowden "T" O-10-23733 | RMR Operating, LLC only | Donnelly (San Andres) | Ector | 2 | 40.4K | 70.5K | Jan 1993 – Mar 2024 |
| Bagley -B- O-10-49080 | OXY USA WTP LP only | Cowden, South (Canyon 8790) | Ector | 1 | 40.3K | 26K | Aug 2017 – Apr 2026 |
| Slator -a- Tract II O-10-23649 | Apache Corporation only | TXL (San Andres) | Ector | 2 | 40K | 270K | Jan 1993 – Feb 2018 |
| Moncrief-TXL -35- O-10-29191 | Forest Oil Permian Corporation only | Goldsmith (5600) | Ector | 2 | 40K | 35.9K | Jan 1993 – Oct 2006 |
| Cowden "U" O-10-24302 | RMR Operating, LLC only | Donnelly (San Andres) | Ector | 4 | 39.9K | 46.6K | Jan 1993 – Mar 2024 |
| Cowden -A- O-10-12017 | Baker Operating, Inc. only | Goldsmith (Clear Fork) | Ector | 3 | 39.9K | 839K | Jan 1993 – Apr 2026 |
| Cummins -C- O-10-13731 | OXY USA WTP EOR, LLC only | Goldsmith (Clear Fork) | Ector | 13 | 39.8K | 59.2K | Jan 1993 – Apr 2026 |
| Arco-Hugh Corrigan O-10-30497 | Formentera Operations LLC only | Fasken (Penn.) | Ector | 1 | 39.8K | 61.1K | Jan 1993 – Sep 2011 |
| Kloh -A- O-10-818 | Aghorn Operating, Inc. only | Cowden, North (Deep) | Ector | 2 | 39.7K | 2.11K | Jan 1993 – Feb 2026 |
| Moncreif-TXL -35- O-10-38069 | Scout Energy Management LLC only | Goldsmith (Clear Fork) | Ector | 2 | 39.7K | 2.08K | Nov 2006 – Apr 2026 |
| Holt, O. B. -B- O-10-36414 | Texland Petroleum, L.P. only | Cowden, North (Deep) | Ector | 1 | 39.4K | 55 | Sep 2000 – Apr 2026 |
| Foster, B. J. O-10-19466 | Baker Operating, Inc. only | Cowden, South | Ector | 3 | 39.3K | 9 | Jan 1993 – Apr 2026 |
| Phillips-Slator -26- O-10-38037 | Scout Energy Management LLC only | Goldsmith (Clear Fork) | Ector | 3 | 39.3K | 1.82K | Nov 2006 – Apr 2026 |
| Cummins, H. E., -E- O-10-13249 | Forest Oil Corporation only | Goldsmith (5600) | Ector | 2 | 39.1K | 128K | Jan 1993 – Oct 2006 |
| Ector -AB- Fee O-10-14000 | Aghorn Operating, Inc. only | G & W (Devonian) | Ector | 2 | 39.1K | 172K | Jan 1993 – Feb 2026 |
| Ratliff Ranch "A" O-10-46399 | Slant Operating, LLC only | Ratliff (Penn.) | Ector | 2 | 39K | 112K | Apr 2014 – Apr 2026 |
| Cowden O-10-8488 | Baker Operating, Inc. only | Harper | Ector | 1 | 39K | 12.5K | Jan 1993 – Apr 2026 |
| McFall, R. E. O-10-19150 | DSR Oil & Gas, Inc. only | TXL (San Andres) | Ector | 3 | 38.9K | 70.8K | Jan 1993 – Feb 2018 |
| Phillips-Texaco "23" O-10-29444 | Forest Oil Permian Corporation only | Goldsmith (5600) | Ector | 2 | 38.9K | 30.2K | Jan 1993 – Oct 2006 |
| Susie -A- O-10-30949 | Jay Management Company, LLC only | Goldsmith, N. (San Andres, Con.) | Ector | 2 | 38.8K | 81.1K | Jan 1993 – Apr 2026 |
| Cowden, Frank R/a -B- O-10-832 | Occidental Permian Ltd. only | Cowden, North (Deep) | Ector | 3 | 38.8K | 9.55K | Jan 1993 – Aug 2017 |