| Cowden, W.F. -A- O-10-28149 | Occidental Permian Ltd. only | Cowden, N. (Strawn) | Ector | 2 | 48.5K | 36K | Jan 1993 – Apr 2026 |
| TXL G G-10-192399 | Flint Oak Energy, LLC only | Wheeler (Devonian) | Ector | 1 | 48.4K | 903K | May 2002 – Nov 2018 |
| Parker Minerals, Ltd., et Al O-10-39589 | Acoma Operating, LLC only | Goldsmith | Ector | 5 | 48.4K | 77.8K | Aug 2009 – Aug 2022 |
| Shashka O-10-37604 | Hilcorp Energy Company only | Arbol de Nada (Devonian) | Ector | 1 | 48.3K | 592K | May 2005 – Apr 2026 |
| Newkirk O-10-43461 | Aghorn Operating, Inc. only | Spraberry (Trend Area) | Ector | 2 | 48.3K | 95.1K | Aug 2012 – Mar 2026 |
| Chase -B- O-10-29867 | Bluco Production Co., Inc. only | Cowden, South | Ector | 1 | 48.2K | 1.16K | Jan 1993 – Apr 2026 |
| Wight, L. E., Mrs. -A-9- O-10-9321 | United Oil & Shale LLC only | Cowden, North (Deep) | Ector | 7 | 48.2K | 20.3K | Jan 1993 – Oct 2011 |
| Connell, W. E. NCT-8 O-10-33219 | Cross Timbers Energy, LLC only | Jordan (Tubb) | Ector | 1 | 48.2K | 41.3K | Jan 1993 – Apr 2026 |
| Cummins M O-10-25990 | OXY USA WTP EOR, LLC only | Goldsmith, N. (San Andres, Con.) | Ector | 2 | 47.9K | 795K | Jan 1993 – Jun 2025 |
| Cummins -B- O-10-31987 | Raptor Resources, Inc. only | Goldsmith, W. (San Andres) | Ector | 2 | 47.7K | 192K | Jan 1993 – Apr 2026 |
| Fasken, David -BV- O-10-27835 | Fasken Oil and Ranch, Ltd. only | Fasken, South (Wolfcamp) | Ector | 1 | 47.6K | 47.4K | Jan 1993 – Feb 2026 |
| Gomer 8 Unit O-10-41960 | Diamondback E&P LLC only | Sallie Ann (Spraberry-Wolfcamp) | Ector | 1 | 47.1K | 128K | Mar 2011 – Apr 2026 |
| Allen L. Williams O-10-30310 | Marshall & Winston, Inc. only | Lazy R. (Strawn Detritus) | Ector | 1 | 47K | 136K | Jan 1993 – Jan 2008 |
| Alma O-10-16751 | Highmark Energy Operating, LLC only | TXL (Devonian) | Ector | 3 | 47K | 215K | Jan 1993 – Dec 2023 |
| Meteor Crater A O-10-37403 | OXY USA WTP LP only | Cowden, South (Canyon 8790) | Ector | 2 | 46.9K | 1.11M | Feb 2004 – Apr 2026 |
| Gardendale '2' O-10-42312 | Diamondback E&P LLC only | Spraberry (Trend Area) | Ector | 2 | 46.7K | 427K | Dec 2011 – Apr 2026 |
| Slator O-10-28770 | Hurst Oil & Gas, Inc. only | Goldsmith (5600) | Ector | 2 | 46.5K | 32.5K | Jan 1993 – Oct 2006 |
| Parker, J. E. -a- /EO/ O-10-8771 | Fivestones Energy LLC only | Harper | Ector | 7 | 46.5K | 32.9K | Jan 1993 – Sep 2025 |
| Parker Minerals, Ltd., et Al O-10-37544 | Neg Operating LLC only | Goldsmith (5600) | Ector | 10 | 46.4K | 49.2K | Mar 2005 – Oct 2006 |
| Sherry O-10-55734 | Diamondback E&P LLC only | Spraberry (Trend Area) | Ector | 10 | 46.4K | 140K | Oct 2019 – Apr 2026 |
| Shoebar Ranch-B O-10-35385 | Cross Timbers Energy, LLC only | Ectorfisk (Fusselman) | Ector | 1 | 46.3K | 59.2K | May 1997 – Jan 2016 |
| Stanolind-Henderson -A- O-10-30343 | Baker Operating, Inc. only | Cowden, South | Ector | 4 | 46.1K | 7.5K | Jan 1993 – Apr 2026 |
| Cummins "D" O-10-22802 | Baker Operating, Inc. only | Cummins (Devonian) | Ector | 2 | 46.1K | 195K | Jan 1993 – Jun 2004 |
| Cowden, Frank R/a -C- O-10-833 | Occidental Permian Ltd. only | Cowden, North (Deep) | Ector | 3 | 46.1K | 12.9K | Jan 1993 – Apr 2026 |
| Cowden, R.B. "AA" O-10-34006 | Octane Energy Operating, LLC only | Goldsmith, N. (San Andres, Con.) | Ector | 2 | 45.9K | 229K | Oct 1993 – Apr 2026 |
| Cole O-10-32891 | Jay Management Company, LLC only | Goldsmith, N. (San Andres, Con.) | Ector | 4 | 45.8K | 62.3K | Jan 1993 – Apr 2026 |
| Vivian O-10-41959 | Scout Energy Management LLC only | Goldsmith (Clear Fork) | Ector | 2 | 45.7K | 394K | Aug 2011 – Feb 2024 |
| Henderson O-10-8251 | Henderson, Bryan, Co. only | Cowden, South | Ector | 9 | 45.7K | 14.2K | Jan 1993 – Apr 2026 |
| Anderson, C. H. C. -A- O-10-21943 | Extex Operating Company only | Yarbrough & Allen (Devonian) | Ector | 1 | 45.5K | 50.7K | Jan 1993 – Apr 2026 |
| Rumsey -A- O-10-31182 | Baker Operating, Inc. only | Goldsmith | Ector | 7 | 45.4K | 32.3K | Jan 1993 – Apr 2026 |
| Shoe Bar "D" O-10-35836 | Extex Operating Company only | King Lake (Devonian) | Ector | 1 | 45.4K | 36.1K | Jun 1998 – Apr 2012 |
| Horace O-10-20516 | Walsh & Watts, Inc. only | Goldsmith, N. (San Andres, Con.) | Ector | 2 | 45.3K | 97.8K | Jan 1993 – Nov 2014 |
| Anderson, C. H. C. -B- O-10-26536 | Legacy Reserves Operating LP only | Yarbrough & Allen (Waddell) | Ector | 1 | 45K | 25.9K | Jan 1993 – Feb 2009 |
| Slator -C- O-10-11779 | OXY USA WTP LP only | TXL (San Andres) | Ector | 4 | 45K | 169K | Jan 1993 – Feb 2018 |
| Cushing O-10-8028 | Double Barrel Oil LLC only | Wheeler (Ellenburger) | Ector | 1 | 44.9K | 479K | Jan 1993 – Apr 2026 |
| TXL "B" O-10-33890 | Pitts Energy Co. only | Goldsmith, N. (San Andres, Con.) | Ector | 3 | 44.6K | 524K | Jul 1993 – Apr 2026 |
| Cowden, W. F. -C- Upper R/A E O-10-28450 | Occidental Permian Ltd. only | Goldsmith, N. (San Andres, Con.) | Ector | 1 | 44.5K | 523K | Jan 1993 – Apr 2026 |
| Moss, Paul O-10-8690 | Aghorn Operating, Inc. only | Moss (Grayburg) | Ector | 8 | 44.4K | 1.25K | Jan 1993 – Feb 2026 |
| Millard -L- O-10-41750 | Ring Energy, Inc. only | Penwell (Devonian) | Ector | 1 | 44.4K | 43.2K | Aug 2011 – Sep 2020 |
| Trapper John A O-10-36907 | Hilcorp Energy Company only | Goldsmith (Clear Fork) | Ector | 1 | 44.1K | 173K | May 2002 – Apr 2026 |
| Cummins -J- O-10-2209 | OXY USA WTP LP only | Goldsmith (Fusselman) | Ector | 4 | 44.1K | 1.66M | Mar 2004 – Jan 2023 |
| Opie H O-10-44495 | Diamondback E&P LLC only | Sallie Ann (Spraberry-Wolfcamp) | Ector | 2 | 44K | 557K | Oct 2013 – Oct 2024 |
| Slator O-10-30061 | Hurst Oil & Gas, Inc. only | Slator (San Andres) | Ector | 2 | 44K | 26.7K | Jan 1993 – Feb 2018 |
| Cowden O-10-27847 | Herbig Oil & Gas Co. only | Cowden, South (Canyon 8790) | Ector | 2 | 44K | 82.8K | Jan 1993 – Oct 2011 |
| Crane 11 O-10-36421 | Slant Operating, LLC only | Buffalo Ridge (Wolfcamp) | Ector | 1 | 44K | 14.1K | Oct 2000 – Apr 2026 |
| Holt, Bobby O-10-35063 | EOG Resources, Inc. only | Triple-N (Penn., Upper) | Ector | 1 | 43.9K | 21.4K | Sep 1996 – Jan 1997 |
| Gist, Marcus O-10-24351 | Aghorn Operating, Inc. only | Johnson | Ector | 3 | 43.9K | 35.5K | Jan 1993 – Feb 2026 |
| Shoe Bar "E" O-10-37730 | Extex Operating Company only | King Lake (Pennsylvanian) | Ector | 1 | 43.7K | 23.8K | Jul 2005 – Oct 2025 |
| Addis -A- O-10-933 | Laguna Petroleum Corporation only | Cowden, South | Ector | 2 | 43.7K | 20.5K | Mar 2001 – Sep 2017 |
| Parker Minerals 4 O-10-40857 | Crescent Energy Operating, LLC only | Harper | Ector | 4 | 43.6K | 53.6K | Dec 2010 – Apr 2026 |