| Addis, Frank V. -B- O-10-21344 | Occidental Permian Ltd. only | Cowden, South (Canyon 8790) | Ector | 1 | 55K | 30.6K | Jan 1993 – Apr 2021 |
| Tornado O-10-36528 | OXY USA WTP LP only | Goldsmith (Devonian) | Ector | 1 | 54.9K | 90.7K | Dec 2000 – Apr 2026 |
| Millard "D" O-10-37237 | Conocophillips Company only | Penwell (Fusselman) | Ector | 1 | 54.8K | 60.7K | Jun 2003 – Sep 2012 |
| Millard -C- O-10-41798 | Ring Energy, Inc. only | Penwell (Devonian) | Ector | 4 | 54.7K | 118K | Aug 2011 – Sep 2020 |
| BR Odessa O-10-55254 | OXY USA Inc. only | Cowden, North (Canyon) | Ector | 1 | 54.4K | 33.8K | Oct 2019 – Apr 2026 |
| Cowden -31- O-10-31215 | Bustamante Resources LLC only | Cowden (Cisco) | Ector | 2 | 54.2K | 19 | Jan 1993 – Mar 2026 |
| Peggy B O-10-44576 | Diamondback E&P LLC only | Sallie Ann (Spraberry-Wolfcamp) | Ector | 2 | 54K | 118K | May 2013 – Apr 2026 |
| Thomas -A- O-10-6924 | Formentera Operations LLC only | TXL (Devonian) | Ector | 2 | 54K | 191K | Jan 1993 – Jan 2020 |
| Benjamin 'B' O-10-39079 | Diamondback E&P LLC only | Sallie Ann (Spraberry-Wolfcamp) | Ector | 2 | 53.8K | 145K | Nov 2008 – Sep 2021 |
| TXL -L- a/C III O-10-12455 | Formentera Operations LLC only | TXL (Devonian) | Ector | 2 | 53.8K | 302K | Jan 1993 – Apr 2026 |
| Douglass Parker O-10-47497 | Crescent Energy Operating, LLC only | Goldsmith | Ector | 1 | 53.8K | 134K | Apr 2014 – Apr 2026 |
| Moss, Paul O-10-22411 | R3 Operating Corporation only | Cowden, South (Dev.) | Ector | 3 | 53.5K | 85.8K | Jan 1993 – Nov 2018 |
| Cowden, W. E. O-10-29598 | Baker Operating, Inc. only | Harper | Ector | 9 | 53.4K | 9.73K | Jan 1993 – Mar 2026 |
| Moss Ranch "44" O-10-42652 | Aghorn Operating, Inc. only | Sallie Ann (Spraberry-Wolfcamp) | Ector | 1 | 53.4K | 93.9K | Mar 2012 – Feb 2026 |
| Millie B (Alloc) O-10-45996 | Firebird Energy LLC only | Sallie Ann (Spraberry-Wolfcamp) | Ector | 1 | 53.2K | 28.7K | Nov 2013 – Jun 2018 |
| TXL -P- O-10-19812 | Octane Energy Operating, LLC only | Goldsmith, N. (San Andres, Con.) | Ector | 2 | 53.1K | 234K | Jan 1993 – Apr 2026 |
| Averitt (AW) O-10-45430 | FDL Operating, LLC only | Sallie Ann (Spraberry-Wolfcamp) | Ector | 1 | 53.1K | 105K | Aug 2013 – Aug 2017 |
| North Goldsmith Oil Unit #4 O-10-19727 | Baker Operating, Inc. only | Goldsmith, N. (San Andres, Con.) | Ector | 4 | 53K | 207K | Jan 1993 – Apr 2026 |
| Sabine O-10-14218 | Libertad Operating LLC only | Cowden, North | Ector | 4 | 53K | 8.85K | Jan 1993 – Mar 2026 |
| Scharbauer -MO- /Upper/ O-10-18863 | Endeavor Energy Resources L.P. only | Goldsmith | Ector | 6 | 52.9K | 29.9K | Jan 1993 – Oct 2010 |
| Ector -H- Fee O-10-9761 | Formentera Operations LLC only | Harper | Ector | 13 | 52.5K | 29.8K | Jan 1993 – Apr 2026 |
| Holt, O. B. "A" O-10-22851 | Ernmar Investments, Inc. only | Cowden, North | Ector | 2 | 52.5K | 12.6K | Jan 1993 – Apr 2026 |
| Parker Trust 20 O-10-39886 | Crescent Energy Operating, LLC only | Goldsmith (Clear Fork) | Ector | 9 | 52.3K | 107K | Nov 2009 – Sep 2021 |
| Alma O-10-7001 | Highmark Energy Operating, LLC only | TXL (Silurian) | Ector | 5 | 52.1K | 132K | Jan 1993 – Oct 2017 |
| Cummins -C- O-10-12767 | OXY USA WTP LP only | Goldsmith (Fusselman) | Ector | 1 | 51.8K | 116K | Jan 1993 – Feb 2024 |
| Shoebar Ranch -B O-10-34185 | Phillips Petroleum Company only | Ectorfisk (Fusselman) | Ector | 1 | 51.7K | 27K | May 1994 – Oct 1996 |
| Foster E O-10-37190 | OXY USA Inc. only | Cowden, South | Ector | 1 | 51.7K | 5.61K | Aug 2003 – Apr 2026 |
| Cowden-1- O-10-31934 | Aghorn Operating, Inc. only | Cowden (Cisco) | Ector | 1 | 51.4K | 18.6K | Jan 1993 – Feb 2026 |
| Foster "F" O-10-22703 | Baker Operating, Inc. only | Cowden, South (Canyon 8900) | Ector | 1 | 51.3K | 65K | Jan 1993 – May 2016 |
| TXL -N- O-10-22628 | Formentera Operations LLC only | TXL (Silurian) | Ector | 2 | 51.1K | 245K | Jan 1993 – Apr 2026 |
| Haley O-10-41617 | Scout Energy Management LLC only | Goldsmith (Clear Fork) | Ector | 3 | 50.9K | 289K | Sep 2011 – Apr 2026 |
| Fraser, G. C. O-10-38437 | Petex only | Goldsmith (Clear Fork) | Ector | 3 | 50.6K | 32.7K | Nov 2006 – Apr 2026 |
| Smith, R. W. "G" O-10-22535 | Occidental Permian Ltd. only | Cowden, North (Clear Fork) | Ector | 1 | 50.6K | 2.18K | Jan 1993 – Apr 2026 |
| Cowden, R. B. O-10-22139 | R3 Operating Corporation only | Goldsmith, N. (San Andres, Con.) | Ector | 3 | 50.5K | 644K | Jan 1993 – Feb 2026 |
| Cole Ranch O-10-34065 | BCP Resources, LLC only | TXL (Devonian) | Ector | 1 | 50.3K | 206K | Dec 1993 – Apr 2026 |
| Thomas, A. E. -a- NCT-1 O-10-8262 | Aghorn Operating, Inc. only | TXL (Devonian) | Ector | 6 | 50.3K | 253K | Jan 1993 – Feb 2026 |
| Parker, J. E. -C- O-10-31628 | Baker Operating, Inc. only | TXL (Wichita Albany, South) | Ector | 1 | 50.2K | 45.7K | Jan 1993 – Apr 2026 |
| Kloh O-10-36035 | Aghorn Operating, Inc. only | Cowden, North (Clear Fork) | Ector | 1 | 50K | 0 | Jun 1999 – Feb 2026 |
| TXL -G- O-10-15248 | Double Barrel Oil LLC only | Wheeler (Wolfcamp) | Ector | 1 | 49.9K | 1.18M | Jan 1993 – Apr 2026 |
| Amoco-Cowden -9- O-10-30978 | Jay Management Company, LLC only | Goldsmith, N. (San Andres, Con.) | Ector | 3 | 49.7K | 116K | Jan 1993 – Apr 2026 |
| Cowden, Elliott F. "D" O-10-24196 | Sheridan Production Company, LLC only | Cowden, South (Canyon 8790) | Ector | 4 | 49.7K | 41.7K | Jan 1993 – Jan 2009 |
| Sallie 13 O-10-59670 | Diamondback E&P LLC only | Spraberry (Trend Area) | Ector | 2 | 49.5K | 192K | Jun 2022 – Apr 2026 |
| Goldsmith, C. A. et Al O-10-36065 | Hilcorp Energy Company only | Goldsmith (Ellenburger) | Ector | 5 | 49.5K | 92.5K | May 1999 – Jun 2014 |
| Cowden -H- O-10-31683 | Baker Operating, Inc. only | Harper | Ector | 2 | 49.2K | 9.94K | Jan 1993 – Apr 2026 |
| Edwards O-10-36695 | Octane Energy Operating, LLC only | VHZ (Devonian) | Ector | 2 | 49.2K | 57.1K | Jul 2001 – Sep 2025 |
| Johnson -A- O-10-26596 | Highmark Energy Operating, LLC only | Cowden, North (Canyon) | Ector | 2 | 49K | 3.72K | Jan 1993 – Apr 2026 |
| Ector -Q- Fee O-10-10984 | Aghorn Operating, Inc. only | TXL (San Andres) | Ector | 4 | 48.9K | 149K | Jan 1993 – Feb 2018 |
| Ratliff, Sallie W.-D- O-10-27648 | Diamondback E&P LLC only | Headlee, N. (Devonian) | Ector | 1 | 48.9K | 378K | Mar 2002 – Apr 2026 |
| Nelson O-10-35315 | Brown, H.L. Operating, L.L.C. only | Bob (Devonian) | Ector | 1 | 48.8K | 83.3K | Mar 1997 – Mar 2003 |
| Anderson, C. H. C., R/a -E- O-10-8089 | Production Gathering Company, LP only | Yarbrough & Allen (Ellenburger) | Ector | 3 | 48.8K | 36.8K | Jan 1993 – Nov 2004 |