| Briscoe (5140) G-1-273158 | Flint Oak Energy, LLC only | Briscoe Ranch (Olmos) | Dimmit | 1 | 213 | 62.4K | Jan 2013 – Aug 2026 |
| Fogmt G-1-251799 | Javelin Energy Partners Mgmt LLC only | Indio Tanks (Pearsall) | Dimmit | 1 | 210 | 1.97M | Apr 2009 – Aug 2026 |
| Groce, J. G. G-1-147830 | Endeavor Natural Gas, LP only | Pena Creek (Olmos 2350) | Dimmit | 1 | 205 | 51.3K | by Jan 1993 – Feb 1994 |
| Bray G-1-230127 | Sage Energy Company only | Pena Creek (Olmos 2400) | Dimmit | 1 | 189 | 45.3K | Oct 2006 – Oct 2008 |
| Myers G-1-243046 | El Toro Resources LLC only | Indio Tanks (Pearsall) | Dimmit | 1 | 188 | 267K | Sep 2008 – Nov 2018 |
| Briscoe Carla Ranch Unit B G-1-291696 | Javelin Energy Partners Mgmt LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 183 | 12.3K | Jan 2020 – Jun 2023 |
| Shook O-1-21195 | Atlas Operating LLC only | Pearsall (Austin Chalk) | Dimmit | 1 | 178 | 4.53K | May 2023 – Aug 2026 |
| Briscoe "B" G-1-232736 | Crimson Energy Ptnrs III, L.L.C. only | Briscoe Ranch (Olmos) | Dimmit | 1 | 169 | 10.2K | Jul 2007 – Nov 2011 |
| Soldiers Lake W Unit G-1-220345 | Carrizo Exploration, Inc. only | Saint Thirteen (Olmos No. 1) | Dimmit | 1 | 169 | 20.2K | May 2006 – Oct 2006 |
| Fogmt G-1-257846 | Javelin Energy Partners Mgmt LLC only | Indio Tanks (Pearsall) | Dimmit | 1 | 169 | 1.04M | Jun 2010 – Oct 2022 |
| Briscoe Ranch G-1-169827 | Rosetta Resources Operating LP only | Catarina, SW. (Olmos) | Dimmit | 1 | 168 | 75K | Jun 1998 – Jan 2014 |
| Bowers, Ruth M. G-1-64783 | H & M Resources, LLC only | J. F. S. (Edwards) | Dimmit | 1 | 167 | 27.9K | by Jan 1993 – Jul 2004 |
| Shook G-1-257891 | Atlas Operating LLC only | Indio Tanks (Pearsall) | Dimmit | 1 | 162 | 1.34M | Mar 2010 – Aug 2026 |
| Gates Ranch "K" G-1-115692 | Lewis Petro Properties, Inc. only | Catarina, SW. (San Miguel-Gas) | Dimmit | 1 | 157 | 14.2K | by Jan 1993 – Feb 2002 |
| Frost National Bank Trust G-1-129034 | Carrizo Exploration, Inc. only | Dent Ingram (Olmos 1) | Dimmit | 1 | 155 | 17.4K | by Jan 1993 – Oct 1996 |
| Stumberg Unit G-1-114771 | Botasch Operating, LLC only | Ed Stumberg (Olmos A) | Dimmit | 1 | 152 | 42.4K | by Jan 1993 – Apr 2010 |
| Shepard Unit G-1-120253 | Botasch Operating, LLC only | Ed Stumberg (Olmos A) | Dimmit | 1 | 151 | 140K | by Jan 1993 – Jul 2010 |
| Briscoe Ranches, Inc. G-1-85657 | Rosetta Resources Operating LP only | Catarina, SW. (Olmos) | Dimmit | 1 | 149 | 32.4K | Sep 1994 – Sep 2005 |
| Faith-San Pedro G-1-261614 | Crescent Energy Operating, LLC only | Indio Tanks (Pearsall) | Dimmit | 1 | 149 | 1.59M | Jun 2011 – Aug 2026 |
| Covert, F.M. MCT B-3 O-1-4545 | 3-G Operating Company only | Pena Creek (San Miguel 3RD) | Dimmit | 1 | 145 | 4 | by Jan 1993 – Apr 1993 |
| Stanley O-1-12639 | Killam Oil Co., Ltd. only | Pearsall (Austin Chalk) | Dimmit | 1 | 144 | 3 | by Jan 1993 – Mar 1993 |
| Groves, S. B. Estate O-1-12750 | McDaniel Company, Inc., The only | Pearsall (Austin Chalk) | Dimmit | 2 | 142 | 1.22K | by Jan 1993 – Jun 1993 |
| White-Frost Unit O-1-12652 | Chiodo Corp. only | Pearsall (Austin Chalk) | Dimmit | 1 | 138 | 3 | by Jan 1993 – Apr 1993 |
| Gates Ranch "A" G-1-204706 | Lewis Petro Properties, Inc. only | Catarina, SW. (Olmos) | Dimmit | 1 | 133 | 64.1K | Aug 2004 – Jan 2016 |
| Gates Ranch "K-H" G-1-117338 | U. S. Operating, Inc. only | Catarina, SW. (San Miguel-Gas) | Dimmit | 1 | 130 | 20K | by Jan 1993 – Oct 2001 |
| Gates Ranch "A" G-1-60247 | Lewis Petro Properties, Inc. only | Catarina, SW. (Olmos) | Dimmit | 1 | 129 | 5.49K | by Jan 1993 – Feb 2002 |
| Burns Ranch GT O-1-20975 | CML Exploration, LLC only | Pena Creek (Georgetown) | Dimmit | 1 | 129 | 1.35K | Oct 2022 – Apr 2023 |
| Briscoe (5140) G-1-224554 | Flint Oak Energy, LLC only | Briscoe Ranch (Olmos) | Dimmit | 1 | 124 | 35.3K | Mar 2008 – Oct 2012 |
| Standifer, Doyle Est. O-1-13002 | Botasch Operating, LLC only | Pearsall (Austin Chalk) | Dimmit | 1 | 124 | 2 | Mar 1994 – Apr 1994 |
| Votaw, Larry G-1-135812 | Carrizo Exploration, Inc. only | Saint Thirteen (Olmos No. 1) | Dimmit | 1 | 124 | 93.9K | by Jan 1993 – Mar 2002 |
| Briscoe, Dolph "E" G-1-222216 | Flint Oak Energy, LLC only | Briscoe Ranch (Olmos) | Dimmit | 1 | 120 | 1.07K | Nov 2006 – Feb 2008 |
| Frost National Bank Trustee G-1-131848 | Carrizo Exploration, Inc. only | Dent Ingram (Olmos 1) | Dimmit | 1 | 120 | 68.1K | by Jan 1993 – Feb 1998 |
| Briscoe Cochina West Ranch G-1-272534 | Anadarko E&P Onshore LLC only | Briscoe Ranch (Eagleford) | Dimmit | 1 | 119 | 131 | Sep 2014 – Sep 2014 |
| Briscoe Ranches, Inc. G-1-119532 | Rosetta Resources Operating LP only | Catarina, SW. (Olmos N-5) | Dimmit | 1 | 119 | 20.2K | by Jan 1993 – Oct 2000 |
| Briscoe, Dolph "B" G-1-229955 | Flint Oak Energy, LLC only | Briscoe Ranch (Olmos) | Dimmit | 1 | 119 | 112K | Jan 2007 – Sep 2023 |
| Briscoe G-1-244586 | Flint Oak Energy, LLC only | Briscoe Ranch (Olmos) | Dimmit | 1 | 114 | 44.1K | Oct 2008 – Jun 2021 |
| Briscoe Ranches, Inc. G-1-84351 | Blackbrush O & G, Inc. only | Catarina, SW. (Olmos) | Dimmit | 1 | 114 | 18.2K | Sep 1994 – Aug 2002 |
| McKnight E. O-1-14161 | Double Eagle Petroleum Corp only | Winter Garden (Olmos) | Dimmit | 1 | 113 | 0 | Feb 1998 – Mar 2000 |
| Briscoe/Hulsman G-1-167901 | Lewis Petro Properties, Inc. only | Catarina, SW. (San Miguel-Gas) | Dimmit | 1 | 112 | 17.5K | Mar 1998 – Nov 2013 |
| Briscoe Ranch G-1-89836 | Rosetta Resources Operating LP only | Catarina, SW. (Olmos) | Dimmit | 1 | 109 | 20.4K | Aug 1996 – Jan 2014 |
| Fitzsimons, Hugh A. et al -Z- G-1-106951 | Prime Operating Company only | Hugh Fitzsimons (Olmos) | Dimmit | 1 | 109 | 19.6K | by Jan 1993 – Jul 1996 |
| Covert O-1-4405 | Little Bit Oil only | Pena Creek (San Miguel 3RD) | Dimmit | 2 | 108 | 6 | by Jan 1993 – Jun 1993 |
| Fitzsimons "A" G-1-169582 | Collins & Ware, Inc. only | Hugh Fitzsimons (Olmos) | Dimmit | 1 | 107 | 64.8K | Apr 1998 – Feb 1999 |
| Coffield, Estate of H.H. O-1-6409 | TDW Exploration, LLC only | Blakeway (Dixon Sand) | Dimmit | 1 | 107 | 299 | by Jan 1993 – Feb 1999 |
| Blalack, Alvin -A- O-1-13910 | McDaniel Company, Inc., The only | Pearsall (Austin Chalk) | Dimmit | 1 | 106 | 433 | Oct 1994 – Oct 1994 |
| F.N.B.T. South O-1-4686 | Double U Oil Co. only | Big Wells(san Miguel, Lo., East) | Dimmit | 1 | 105 | 145 | by Jan 1993 – Jun 1993 |
| Briscoe/Hulsman O-1-4527 | U. S. Operating, Inc. only | Friday (Olmos) | Dimmit | 2 | 104 | 1.06K | May 1997 – Jul 1997 |
| Gates Ranch -A- G-1-121947 | Lewis Petro Properties, Inc. only | Gates Catarina | Dimmit | 1 | 100 | 13.5K | by Jan 1993 – Aug 2004 |
| Bowman-Gomez Unit 69 G-1-296783 | Trinity Operating (Usg), LLC only | Pearsall (Austin Chalk) | Dimmit | 1 | 100 | 0 | Mar 2024 – May 2024 |
| Gates Ranch "A" G-1-65100 | Lewis Petro Properties, Inc. only | Catarina, SW. (Olmos) | Dimmit | 1 | 99 | 3.6K | by Jan 1993 – Feb 2002 |