| Dora Roberts Ranch Unit O-10-34635 | Continental Resources, Inc. only | Dora Roberts (Consolidated) | Midland | 244 | 8.29M | 39.7M | Oct 1995 – Aug 2026 |
| Dora Roberts Ranch Unit O-10-34646 | OXY USA WTP LP only | Virey (Consolidated) | Midland | 74 | 3.3M | 8.94M | Oct 1995 – Jul 2011 |
| Jennifer (Queen) Unit O-10-32616 | Richland Resources Corporation only | Concho Bluff, North (Queen) | Ector | 58 | 2.89M | 21 | by Jan 1993 – Jul 2026 |
| Moss, Paul Unit O-10-875 | R3 Operating Corporation only | Cowden, South | Ector | 150 | 2.72M | 904K | by Jan 1993 – Aug 2026 |
| Moss,paul South(canyon 8790)UNIT O-10-32791 | R3 Operating Corporation only | Cowden, South (Canyon 8790) | Ector | 36 | 1.64M | 1.3M | by Jan 1993 – Aug 2026 |
| Brock, L. E. O-10-21471 | Laguna Petroleum Corporation only | Foster | Ector | 19 | 849K | 259K | by Jan 1993 – Aug 2026 |
| Witcher, J. E. O-10-21414 | Laguna Petroleum Corporation only | Foster | Ector | 22 | 770K | 239K | by Jan 1993 – Aug 2026 |
| Foster-Pegues Unit O-10-22199 | Laguna Petroleum Corporation only | Foster | Ector | 23 | 711K | 230K | by Jan 1993 – Aug 2026 |
| Parks, Roy -B- TG O-10-1166 | COG Operating LLC only | Dora Roberts (Ellenburger) | Midland | 15 | 624K | 1.56M | by Jan 1993 – Aug 2026 |
| Ratliff O-10-14262 | R3 Operating Corporation only | Cowden, North | Ector | 38 | 553K | 33.6K | by Jan 1993 – Aug 2026 |
| Foster, H. C. O-10-22782 | Laguna Petroleum Corporation only | Foster | Ector | 20 | 540K | 164K | by Jan 1993 – Jun 2026 |
| Henderson, F.A. -B- O-10-30167 | Exxon Mobil Corporation only | Cowden, South (Canyon 8790) | Ector | 2 | 453K | 480K | by Jan 1993 – Jun 2002 |
| Johnson, Lyda Mae O-10-21686 | Momentum Energy Corporation only | Foster | Ector | 3 | 451K | 28.3K | by Jan 1993 – Aug 2026 |
| Maurice, R. O-10-884 | Laguna Petroleum Corporation only | Cowden, South | Ector | 6 | 425K | 100K | by Jan 1993 – Aug 2026 |
| Fortune 500 O-10-33968 | R3 Operating Corporation only | Cowden (Canyon) | Ector | 2 | 412K | 198K | Sep 1993 – Aug 2026 |
| Dora Roberts Ranch Unit O-10-38180 | OXY USA WTP LP only | Sallie Ann (Spraberry-Wolfcamp) | Ector | 2 | 361K | 516K | Apr 2007 – Aug 2011 |
| Lazy E "A" O-10-33519 | Beach Exploration, Inc. only | Double -H- (Grayburg) | Ector | 7 | 328K | 81.7K | by Jan 1993 – Aug 2026 |
| Moss, Paul O-10-856 | Laguna Petroleum Corporation only | Cowden, South | Ector | 16 | 277K | 24.4K | by Jan 1993 – Aug 2026 |
| Parker, J. E. O-10-6917 | Schlachter Operating Corporation only | TXL (Devonian) | Ector | 4 | 243K | 490K | by Jan 1993 – Aug 2026 |
| Henderson, E. A. O-10-28431 | Laguna Petroleum Corporation only | Cowden, South (Canyon 8790) | Ector | 2 | 234K | 332K | by Jan 1993 – Feb 2013 |
| TXL -P- O-10-14750 | Whiting Oil and Gas Corporation only | TXL (San Andres) | Ector | 3 | 207K | 35.7K | by Jan 1993 – Feb 2018 |
| Parker, J. E. O-10-18338 | Schlachter Operating Corporation only | TXL (San Andres) | Ector | 8 | 194K | 490K | by Jan 1993 – Feb 2018 |
| Addis -B- O-10-934 | Laguna Petroleum Corporation only | Cowden, South | Ector | 3 | 179K | 70.5K | by Jan 1993 – Jun 2024 |
| Forest-Slator "26" O-10-29445 | Forest Oil Permian Corporation only | Goldsmith (5600) | Ector | 5 | 174K | 269K | by Jan 1993 – Oct 2006 |
| North Goldsmith Gas Unit No. 2 O-10-36572 | R3 Operating Corporation only | Goldsmith, N. (San Andres, Con.) | Ector | 7 | 172K | 1.76M | Mar 2001 – Aug 2026 |
| Parks, Roy -B- TG O-10-34636 | COG Operating LLC only | Dora Roberts (Consolidated) | Midland | 15 | 150K | 2.53M | Oct 1995 – Aug 2026 |
| TXL -L- a/C #2 O-10-6979 | Apache Corporation only | TXL (Ellenburger) | Ector | 1 | 141K | 814K | by Jan 1993 – Mar 2019 |
| Longbotham, Cora -A- O-10-22275 | Aghorn Operating, Inc. only | Cowden, South (Canyon 8790) | Ector | 2 | 129K | 200K | by Jan 1993 – Jul 2026 |
| Cowden -A- O-10-30280 | Kinney Incorporated only | Cowden, South (Canyon 8790) | Ector | 1 | 116K | 167K | by Jan 1993 – Aug 2026 |
| Cowden -F- O-10-31927 | Andector Exploration Company only | Goldsmith, N. (San Andres, Con.) | Ector | 3 | 110K | 287K | by Jan 1993 – May 2023 |
| Lazy -E- O-10-33271 | Beach Exploration, Inc. only | Double -H- (Grayburg) | Ector | 4 | 109K | 32.6K | by Jan 1993 – Aug 2026 |
| Longbotham, Cora "B" O-10-22498 | Aghorn Operating, Inc. only | Cowden, South (Canyon 8790) | Ector | 1 | 107K | 114K | by Jan 1993 – Jul 2026 |
| Fasken -S-13- O-10-18790 | Apache Corporation only | Fasken, S. (Atoka) | Ector | 2 | 107K | 452K | by Jan 1993 – Dec 2015 |
| Carlinville National Bank O-10-8075 | Apache Corporation only | Yarbrough & Allen (Ellenburger) | Ector | 9 | 106K | 102K | by Jan 1993 – Jan 2010 |
| Edwards, Will P. -A- O-10-14619 | Apache Corporation only | Wheeler (Wolfcamp) | Ector | 3 | 93.5K | 590K | by Jan 1993 – Sep 2012 |
| Parker O-10-13353 | Apache Corporation only | TXL (San Andres) | Ector | 2 | 74.5K | 75.5K | by Jan 1993 – Feb 2018 |
| Pool A O-10-41013 | Continental Resources, Inc. only | Dora Roberts (Consolidated) | Ector | 8 | 74.2K | 119K | Aug 2011 – Aug 2026 |
| Cowden, R. B. -A- O-10-27032 | Andector Exploration Company only | Goldsmith | Ector | 6 | 74.2K | 221K | by Jan 1993 – Oct 2017 |
| Fasken Unit "14" O-10-29300 | Apache Corporation only | Fasken, South (Wolfcamp) | Ector | 2 | 68.6K | 212K | by Jan 1993 – Oct 2005 |
| Williamson, J. M. O-10-18605 | Saga Petroleum LLC of Colorado only | Goldsmith, N. (San Andres, Con.) | Ector | 9 | 64.7K | 164K | by Jan 1993 – May 2013 |
| Reading-Moss O-10-20113 | Laguna Petroleum Corporation only | Cowden, South (Canyon 8790) | Ector | 3 | 62.6K | 92.3K | by Jan 1993 – Oct 2011 |
| Fasken, David -AV- O-10-29403 | Apache Corporation only | Circle Bar (Devonian) | Ector | 1 | 62.6K | 834K | by Jan 1993 – Oct 2009 |
| Parks County Unit -TG- O-10-31504 | Anadarko Petroleum Corporation only | Headlee (Ellenburger) | Ector | 1 | 60.7K | 216K | by Jan 1993 – Aug 1998 |
| Parker, J. E. O-10-49711 | Schlachter Operating Corporation only | Goldsmith, W. (San Andres) | Ector | 8 | 59.9K | 5.56K | Mar 2018 – Aug 2026 |
| Fasken, David -AV- O-10-30710 | Apache Corporation only | Circle Bar (Fusselman) | Ector | 1 | 57.7K | 587K | by Jan 1993 – Dec 2010 |
| Moss, Paul O-10-22411 | R3 Operating Corporation only | Cowden, South (Dev.) | Ector | 3 | 53.5K | 85.8K | by Jan 1993 – Nov 2018 |
| Cowden, R. B. O-10-22139 | R3 Operating Corporation only | Goldsmith, N. (San Andres, Con.) | Ector | 3 | 50.6K | 650K | by Jan 1993 – Aug 2026 |
| Horace O-10-20516 | Walsh & Watts, Inc. only | Goldsmith, N. (San Andres, Con.) | Ector | 2 | 45.3K | 97.8K | by Jan 1993 – Nov 2014 |
| Addis -A- O-10-933 | Laguna Petroleum Corporation only | Cowden, South | Ector | 2 | 43.7K | 20.5K | Mar 2001 – Sep 2017 |
| Phillips-Slator -26- O-10-28865 | Forest Oil Permian Corporation only | Goldsmith (5600) | Ector | 3 | 42.5K | 22.8K | by Jan 1993 – Oct 2006 |