| Wilson, James A. O-1-12473 | Ampak Oil Company only | Pearsall (Austin Chalk) | Dimmit | 2 | 14.1K | 208 | by Jan 1993 – Jun 2006 |
| Brady, T. H. Estate O-1-4441 | Imperator Operating, LLC only | Pena Creek (San Miguel 3RD) | Dimmit | 4 | 14K | 0 | Apr 1996 – May 2018 |
| Sultenfuss, L. F. O-1-4288 | Thalmann, David Vac Service Inc only | Big Wells (San Miguel) | Dimmit | 1 | 13.8K | 81 | by Jan 1993 – Mar 2000 |
| Henry O-1-10635 | Caprock Exploration, Inc. only | Big Wells (San Miguel) | Dimmit | 1 | 13.6K | 21 | by Jan 1993 – Jan 2002 |
| Tumlinson O-1-11353 | McDay Energy Corp. only | Blakeway (Olmos A) | Dimmit | 2 | 13.4K | 32.4K | by Jan 1993 – Aug 2026 |
| Fitzsimmons "A" O-1-14178 | Prime Operating Company only | Hugh Fitzsimons (Olmos) | Dimmit | 2 | 13.3K | 153K | Mar 1998 – Jan 2022 |
| Kinnard et al Unit O-1-13347 | Oryx Energy Company only | Pearsall (Austin Chalk) | Dimmit | 1 | 13.3K | 5.04K | by Jan 1993 – Sep 1996 |
| Dillard O-1-18538 | CML Exploration, LLC only | Pearsall (Buda, S.) | Dimmit | 1 | 13.2K | 495K | Oct 2014 – Aug 2026 |
| Jred Ranch O-1-15247 | Patterson Energy Corporation only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 13.2K | 20.2K | Nov 2010 – Nov 2022 |
| Votaw "B" O-1-18997 | L & J Exploration, LLC only | Saint Thirteen (Olmos No. 1) | Dimmit | 1 | 12.9K | 0 | May 2017 – Jan 2026 |
| El Cid -C- O-1-13804 | Bush, Mark A. Oil and Gas Inc. only | Pearsall (Austin Chalk) | La Salle | 3 | 12.9K | 0 | Feb 1997 – Nov 2021 |
| Mayflower Investment Co. O-1-4321 | Imperator Operating, LLC only | Pena Creek (San Miguel 3RD) | Dimmit | 5 | 12.8K | 329 | by Jan 1993 – May 2018 |
| James O-1-13641 | Crystal Resources, Inc only | Pearsall (Austin Chalk) | Dimmit | 1 | 12.7K | 19.6K | by Jan 1993 – May 1997 |
| Briscoe Cochina West Ranch G-1-272409 | Anadarko E&P Onshore LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 12.6K | 9.03K | Aug 2014 – Oct 2014 |
| Ferguson-McKnight O-1-14905 | Gulftex Energy, LLC only | Pearsall (Austin Chalk) | Dimmit | 2 | 12.6K | 4 | Dec 2007 – Nov 2023 |
| Votaw "A" O-1-15028 | L & J Exploration, LLC only | Saint Thirteen (Olmos No. 1) | Dimmit | 1 | 12.6K | 52K | Jan 2009 – Jun 2026 |
| Rogers, H. L. O-1-5269 | Berenergy Corporation only | Pearsall (Austin Chalk) | Dimmit | 4 | 12.4K | 6.8K | by Jan 1993 – Jun 2000 |
| Rojo Unit O-1-14103 | Trinity Operating (Usg), LLC only | Pearsall (Austin Chalk) | Dimmit | 2 | 12.3K | 11.4K | Feb 1997 – Sep 2001 |
| La Bandera Ranch G-1-255832 | Anadarko E&P Company LP only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 12.3K | 5.31K | Feb 2010 – Mar 2010 |
| Bowman O-1-18691 | L & J Exploration, LLC only | Saint Thirteen (Olmos No. 2) | Dimmit | 1 | 12.2K | 13.4K | Feb 2014 – Apr 2016 |
| Box O-1-15712 | CML Exploration, LLC only | Pearsall (Austin Chalk) | Dimmit | 1 | 11.6K | 9.54K | Aug 2010 – Dec 2016 |
| McLean-Bowman -A- O-1-4328 | Double U Oil Co., Ltd. only | Big Wells(san Miguel, Lo., East) | Dimmit | 2 | 11.5K | 7.46K | by Jan 1993 – Apr 1998 |
| Stumberg Ranch-Mormac O-1-5987 | Kerns Petroleum, Inc. only | Stumberg (Olmos 4150) | Dimmit | 3 | 11.4K | 48.7K | Mar 1993 – Aug 2006 |
| Briscoe Cochina West Ranch G-1-272338 | Anadarko E&P Onshore LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 11.3K | 5.59K | Aug 2014 – Oct 2014 |
| Jackson O-1-14001 | Hamilton, Clay only | Pena Creek (San Miguel 3RD) | Dimmit | 1 | 11.2K | 4.44K | Oct 1995 – Aug 2012 |
| Kothman G-1-200741 | El Toro Resources LLC only | Pena Creek (Georgetown) | Dimmit | 1 | 11.1K | 1.18M | Dec 2003 – Nov 2017 |
| Hamilton Unit A O-1-19357 | El Toro Resources LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 11K | 0 | Apr 2018 – Jun 2026 |
| Bmmp O-1-20439 | CML Exploration, LLC only | Pearsall (Buda, S.) | Dimmit | 1 | 11K | 320K | Jan 2021 – Aug 2026 |
| Briscoe Carla Ranch Unit B G-1-291338 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 10.9K | 97.3K | Sep 2019 – Aug 2026 |
| Covert State O-1-20219 | Jonah Energy LLC only | Pena Creek (San Miguel 3RD) | Dimmit | 1 | 10.8K | 91K | Oct 2020 – Aug 2026 |
| Piloncillo G-1-266254 | TBM Catarina, LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 10.7K | 303K | Aug 2011 – Aug 2026 |
| TJN Unit O-1-21647 | CML Exploration, LLC only | Lorenzo (Austin Chalk) | Dimmit | 1 | 10.7K | 22.8K | Nov 2024 – Jul 2025 |
| Minus, Josephine A. O-1-8693 | Carrizo Exploration, Inc. only | Thirteen, E. (3500) | Dimmit | 2 | 10.3K | 35.6K | by Jan 1993 – May 2001 |
| Rhodes-State O-1-12753 | Shield Petroleum only | Pearsall (Austin Chalk) | Dimmit | 1 | 10.1K | 9.51K | by Jan 1993 – Apr 1996 |
| Briscoe Carla Ranch Unit B G-1-291340 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 10.1K | 111K | Sep 2019 – Aug 2026 |
| Dunlap O-1-18584 | Crescent Energy Operating, LLC only | Pearsall (Buda, S.) | Dimmit | 2 | 9.82K | 573K | May 2014 – Aug 2020 |
| Hamilton Ranch "A" O-1-6882 | Hamilton, J. R. only | Hugh Fitzsimmons (San Miguel) | Dimmit | 5 | 9.71K | 1.57K | by Jan 1993 – Sep 2023 |
| Vivian, G. W. G-1-201742 | El Toro Resources LLC only | Pena Creek (Georgetown) | Dimmit | 1 | 9.32K | 2.13M | Oct 2003 – Aug 2026 |
| Votaw, Larry O-1-12091 | Carrizo Exploration, Inc. only | Saint Thirteen (Olmos No. 1) | Dimmit | 2 | 9.14K | 34.5K | Feb 1993 – Apr 2001 |
| Diamond H State Unit D O-1-19494 | SN EF Maverick, LLC only | Briscoe Ranch (Eagleford) | Dimmit | 9 | 9.14K | 61.9K | Jan 2022 – Jan 2022 |
| Rogers Dentonio 29 Unit O-1-19756 | SN EF Maverick, LLC only | Briscoe Ranch (Eagleford) | Dimmit | 3 | 8.61K | 30.4K | Jan 2022 – Jan 2022 |
| Light Minerals O-1-13737 | Lightning Oil Company only | Sage Creek, W. (2ND Olmos A-3) | Dimmit | 1 | 8.41K | 81 | Apr 1993 – Dec 1999 |
| Light, Wm. O-1-11684 | Carrizo Exploration, Inc. only | Evergreen Farms (3100) | Dimmit | 1 | 8.38K | 23 | by Jan 1993 – Jun 2001 |
| Sultenfuss, L.F. O-1-7556 | Tidal Petroleum, Inc. only | Good Luck (San Miguel) | Dimmit | 2 | 8.38K | 69 | by Jan 1993 – Nov 1998 |
| Ten F Partners G-1-257619 | Sage Energy Company only | Griselda (Olmos 3518) | Dimmit | 1 | 8.34K | 273K | May 2010 – Oct 2015 |
| Frost National Bank O-1-12931 | TX Energy Services, LLC only | Pearsall (Austin Chalk) | Brooks | 2 | 8.12K | 3.44K | by Jan 1993 – Aug 2000 |
| Castellaw-Hundley O-1-15096 | Genesis Well Service only | Pearsall (Austin Chalk) | Dimmit | 1 | 7.96K | 21.5K | Oct 2008 – Dec 2020 |
| Briscoe Cochina West Ranch G-1-272463 | Anadarko E&P Onshore LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 7.67K | 5.57K | Oct 2014 – Oct 2014 |
| Briscoe G-1-235889 | Flint Oak Energy, LLC only | Briscoe Ranch (Olmos) | Dimmit | 1 | 7.62K | 287K | Feb 2008 – Aug 2026 |
| RBR G-1-281040 | Sage Energy Company only | Thirteen, East (3470 Olmos) | Dimmit | 1 | 7.38K | 16.2K | Jun 2016 – Apr 2018 |