| Shell-Johnson /EO/ O-10-1161 | Crescent Energy Operating, LLC only | Donnelly (San Andres) | Ector | 3 | 12.9K | 16.6K | Jan 1993 – May 2010 |
| Depco-Slator -24- O-10-31011 | Maynard Oil Co. only | Goldsmith (5600) | Ector | 1 | 12.8K | 50.1K | Jan 1993 – Jun 2002 |
| Millard "C" O-10-34303 | Conocophillips Company only | Penwell (Devonian) | Ector | 2 | 12.8K | 11.2K | Sep 1994 – Oct 2000 |
| Fasken Estate O-10-37402 | Fasken Oil and Ranch, Ltd. only | Circle Bar, East (Atoka) | Ector | 1 | 12.7K | 333K | Jun 2004 – Dec 2019 |
| Thomas, A. E., -a- NCT-1 O-10-49703 | Aghorn Operating, Inc. only | Goldsmith, W. (San Andres) | Ector | 6 | 12.6K | 78.8K | Mar 2018 – Feb 2026 |
| Cummins N O-10-37805 | Baker Operating, Inc. only | Goldsmith (Clear Fork) | Ector | 1 | 12.6K | 62.3K | Jul 2005 – Apr 2026 |
| Sprague, Ruth O-10-31362 | Reatta Energy, Inc. only | Ratliff, N. (Wolfcamp) | Ector | 1 | 12.5K | 30.6K | Jan 1993 – Jun 2013 |
| Aghorn AB Fee O-10-50520 | Aghorn Operating, Inc. only | Arbol de Nada (Devonian) | Ector | 2 | 12.5K | 29.1K | Sep 2018 – Feb 2026 |
| Cowden J O-10-8695 | Andector Exploration Company only | Goldsmith (5600) | Ector | 2 | 12.5K | 116K | Jan 1993 – Oct 2006 |
| Williamson -C- O-10-31717 | Phoenix Hydrocarbons Operating only | Goldsmith (5600) | Ector | 1 | 12.5K | 21.9K | Jan 1993 – Oct 2006 |
| Kloh -C- O-10-31241 | Baker Operating, Inc. only | Goldsmith | Ector | 5 | 12.4K | 6.35K | Jan 1993 – Apr 2026 |
| Edwards Ranch -32- O-10-13516 | Baker Operating, Inc. only | Double -H- (Grayburg) | Ector | 1 | 12.3K | 46 | Jan 1993 – Apr 2026 |
| Moss, Paul Estate O-10-29502 | Rust Oil Corp. only | Mosswell (Strawn 8720) | Ector | 2 | 12.2K | 10K | Jan 1993 – Nov 1996 |
| Slator Ranch O-10-37969 | Baker Operating, Inc. only | Goldsmith (Clear Fork) | Ector | 1 | 12.2K | 0 | Nov 2006 – Sep 2024 |
| Williamson -B- O-10-37971 | Jay Management Company, LLC only | Goldsmith (Clear Fork) | Ector | 1 | 12.2K | 13.5K | Nov 2006 – Apr 2026 |
| Fasken, David -AM- O-10-32776 | Apache Corporation only | Fasken, South (Wolfcamp) | Ector | 1 | 12.1K | 457K | Jan 1993 – Feb 1999 |
| TXL -D- O-10-19912 | Apache Corporation only | TXL (San Andres) | Ector | 3 | 12K | 68.4K | Jan 1993 – Feb 2018 |
| Hurricane O-10-36375 | OXY USA WTP LP only | Jars (Ellenburger) | Ector | 1 | 12K | 8.75K | Aug 2000 – Nov 2003 |
| Opie B O-10-44489 | Diamondback E&P LLC only | Sallie Ann (Spraberry-Wolfcamp) | Ector | 1 | 11.9K | 42.2K | Feb 2014 – Dec 2022 |
| Cowden -C- O-10-12121 | Grama Operating, LLC only | Goldsmith (Clear Fork) | Ector | 1 | 11.9K | 222K | Jan 1993 – Apr 2023 |
| Ector -C- Fee /NCT-2/ O-10-17029 | O'Ryan Oil and Gas only | Moss (Grayburg) | Ector | 1 | 11.9K | 22 | Jan 1993 – Apr 2026 |
| TXL -G- O-10-8029 | Aroc (Texas) Inc. only | Wheeler (Ellenburger) | Ector | 1 | 11.8K | 505K | Jan 1993 – Apr 2002 |
| Parker, J. E. O-10-17592 | OXY USA Inc. only | TXL (Wolfcamp, North) | Ector | 2 | 11.8K | 9.58K | Jan 1993 – Mar 2000 |
| TXL -D- O-10-14849 | Apache Corporation only | Goldsmith (5600) | Ector | 1 | 11.8K | 36.4K | Jan 1993 – Jan 2004 |
| Connell, A.B.-C O-10-53380 | Cross Timbers Energy, LLC only | Metz (Fusselman) | Ector | 1 | 11.8K | 1.69K | Apr 2020 – Aug 2023 |
| Parker Minerals 8 O-10-41606 | Crescent Energy Operating, LLC only | Monahans Draw (Canyon 8388) | Ector | 1 | 11.8K | 25.3K | Jun 2011 – Jun 2022 |
| Fasken, David -BF- O-10-40328 | Fasken Oil and Ranch, Ltd. only | Fasken, South (Wolfcamp) | Ector | 1 | 11.7K | 7.38K | Apr 2010 – Dec 2023 |
| Fasken Unit -14- O-10-40273 | Fasken Oil and Ranch, Ltd. only | Fasken, South (Strawn) | Ector | 1 | 11.7K | 224K | Jul 2010 – Apr 2026 |
| Ector -BA- Fee O-10-26063 | Highmark Energy Operating, LLC only | Cowden, North | Ector | 1 | 11.7K | 48.3K | Jan 1993 – Dec 2014 |
| Embar G-10-168966 | Maverick Permian LLC only | Goldsmith (Clear Fork) | Ector | 1 | 11.7K | 236K | May 1998 – Apr 2026 |
| Holt, O. B., Tract 4 O-10-51340 | Texland Petroleum, L.P. only | Venteam (Fusselman) | Ector | 1 | 11.6K | 7.02K | Mar 2019 – Dec 2024 |
| Cowden, R. B. -11- O-10-9012 | Magruder, Edwin H., Jr. only | Goldsmith (5600) | Ector | 2 | 11.6K | 141K | Jan 1993 – Oct 2006 |
| Cummins, H. E., -J- O-10-21677 | Formentera Operations LLC only | Goldsmith, N. (San Andres, Con.) | Ector | 2 | 11.6K | 100K | Jan 1993 – Sep 2018 |
| Ratliff Ranch "A" O-10-46189 | Slant Operating, LLC only | Headlee, N. (Devonian) | Ector | 2 | 11.6K | 27.9K | Apr 2014 – Feb 2026 |
| Douglass Parker O-10-41659 | Sheridan Production Company, LLC only | Goldsmith (Pennsylvanian) | Ector | 1 | 11.5K | 12.6K | May 2011 – May 2013 |
| T X L O-10-20404 | Baker Operating, Inc. only | TXL (San Andres) | Ector | 2 | 11.5K | 15.3K | Jan 1993 – Feb 2018 |
| Mins O-10-20532 | Maverick Permian LLC only | Goldsmith, N. (San Andres, Con.) | Ector | 4 | 11.5K | 392K | Jan 1993 – Aug 2017 |
| Thomas -B- Tract 1 O-10-20208 | Apache Corporation only | TXL (San Andres) | Ector | 4 | 11.4K | 63.6K | Jan 1993 – Sep 2011 |
| Connell Heirs O-10-56376 | Cross Timbers Energy, LLC only | Jordan (Wichita Albany) | Ector | 1 | 11.4K | 8.88K | Sep 2021 – Mar 2022 |
| Cummins, H. E. Est. O-10-37922 | Octane Energy Operating, LLC only | Goldsmith (Clear Fork) | Ector | 2 | 11.4K | 110K | Nov 2006 – Apr 2026 |
| Cowden, R. B. -A- O-10-27605 | Andector Exploration Company only | Goldsmith, N. (San Andres, Con.) | Ector | 2 | 11.4K | 286K | Jan 1993 – May 2016 |
| Edwards O-10-43592 | Ovintiv USA Inc. only | Cowden, South (Canyon 8790) | Ector | 1 | 11.3K | 1.26K | Dec 2011 – Jun 2018 |
| Cowden, Emma "D" O-10-37226 | Texland Petroleum, L.P. only | Cowden, North | Ector | 2 | 11.3K | 11.3K | Feb 2004 – May 2019 |
| Scharbauer G-10-56318 | Sundown Energy LP only | Goldsmith, N. (San Andres, Con.) | Ector | 1 | 11.3K | 407K | Jan 1993 – Mar 2019 |
| Barrow, Augusta O-10-34200 | Apache Corporation only | Ratliff, N. (Wolfcamp) | Ector | 4 | 11.3K | 23.3K | Apr 1994 – Jun 2005 |
| R.B. Cowden 'B' O-10-61237 | Octane Energy Operating, LLC only | Martin (Consolidated) | Ector | 1 | 11.3K | 12.1K | May 2024 – Apr 2026 |
| Ector Fee Unit O-10-36827 | Aghorn Operating, Inc. only | Harper (Strawn) | Ector | 1 | 11.2K | 10.1K | Mar 2002 – Aug 2016 |
| Parker Minerals 9 O-10-41756 | Sheridan Production Company, LLC only | Monahans Draw (Canyon 8388) | Ector | 1 | 11.2K | 9.13K | Jul 2011 – Mar 2016 |
| Moss -C- O-10-26675 | Drake Oil & Gas, LLC only | Harper | Ector | 5 | 11.2K | 21 | Jan 1993 – Oct 2020 |
| Gist B-526 Unit O-10-33381 | Kerr-McGee Corporation only | Foster | Ector | 1 | 11.2K | 8.07K | Jan 1993 – Dec 1994 |