| Briscoe Ranch G-1-58300 | Rosetta Resources Operating LP | Catarina, SW. (Olmos) | 1 | 0 | 12.4K | Jan 1993 – Aug 2013 |
| Briscoe Ranch G-1-58856 | Rosetta Resources Operating LP | Catarina, SW. (Olmos) | 1 | 0 | 42.5K | Jan 1993 – Apr 2016 |
| McKnight G-1-65515 | Double Eagle Petroleum Corp | Wintergarden (1300) | 1 | 0 | 0 | Jan 1993 – Dec 2001 |
| Fitzsimmons, Hugh G-1-65528 | Prime Operating Company | Hugh Fitzsimons (Olmos) | 1 | 0 | 0 | Jan 1993 – Dec 2004 |
| Halsell, Ewing G-1-71999 | CMR Energy, L.P. | Pendencia (Escondido) | 1 | 0 | 27.3K | Jan 1993 – Jul 2007 |
| Bowers, Ruth M. -A- G-1-73266 | Solano Gas Processing, Inc. | Dent Ingram (Olmos 1) | 1 | 0 | 0 | Jan 1993 – Mar 1997 |
| Gates Ranch G-1-73990 | U. S. Operating, Inc. | Catarina, SW. (Olmos) | 1 | 0 | 0 | Jan 1993 – Aug 1999 |
| Bowman, Ruth McLean G-1-74014 | Carrizo Exploration, Inc. | Dent Ingram (Olmos 1) | 1 | 0 | 46.2K | Jan 1993 – Oct 2007 |
| Bowman, Ruth McLean G-1-74045 | L & J Exploration, LLC | Dent Ingram (Olmos 1) | 1 | 0 | 206K | Jan 1993 – Jul 2026 |
| Drought, A. G. G-1-74642 | Cuatro Petro Corp. | Pena Creek (Shallow) | 1 | 0 | 474 | Jan 1993 – Sep 2001 |
| Gates Ranch G-1-75300 | Lewis Petro Properties, Inc. | Catarina, SW. (Olmos) | 1 | 0 | 39.4K | Jan 1993 – Aug 2016 |
| Gates Ranch "A" G-1-76693 | Lewis Petro Properties, Inc. | Catarina, SW. (Olmos) | 1 | 0 | 81.9K | Jan 1993 – Mar 2017 |
| Gates Ranch G-1-76695 | Lewis Petro Properties, Inc. | Gates Catarina | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| Halsell G-1-76696 | CMR Energy, L.P. | Halsell (Escondido) | 1 | 0 | 38.8K | Jan 1993 – Apr 2007 |
| Halsell G-1-76698 | Hamilton, J. R. | Halsell (Escondido) | 1 | 0 | 3.94K | Jan 1993 – May 1997 |
| Halsell G-1-76703 | Hamilton, J. R. | Pendencia (Olmos) | 1 | 0 | 6.39K | Jan 1993 – May 1997 |
| S.E.M. McKnight G-1-76712 | Uhc Petroleum Corporation | Rocky Creek, S. (Georgetown) | 1 | 0 | 2.36K | Jan 1993 – Sep 2006 |
| Briscoe Ranch G-1-77560 | Rosetta Resources Operating LP | Catarina, SW. (Olmos) | 1 | 0 | 138K | Jan 1993 – Mar 2016 |
| Briscoe Ranch G-1-77561 | Rosetta Resources Operating LP | Catarina, SW. (Olmos) | 1 | 0 | 124K | Jan 1993 – Mar 2019 |
| Briscoe Ranch G-1-77717 | Rosetta Resources Operating LP | Catarina, SW. (Olmos) | 1 | 0 | 110K | Jan 1993 – Apr 2016 |
| Power, T. J. G-1-77722 | Phoenix Oil Field Equipment Co. | Evergreen Farms (Georgetown) | 1 | 0 | 0 | Jan 1993 – Jul 2026 |
| Briscoe Ranch G-1-77756 | Rosetta Resources Operating LP | Catarina, SW. (Olmos) | 1 | 0 | 140K | Jan 1993 – Jun 2016 |
| Briscoe Ranch G-1-78219 | Rosetta Resources Operating LP | Catarina, SW. (Olmos) | 1 | 0 | 114K | Jan 1993 – Apr 2016 |
| Frost National Bank Trustee G-1-133822 | San Antonio Gas & Oil, Inc. | Dent Ingram (Olmos 1) | 1 | 0 | 14.3K | Jan 1993 – Dec 1997 |
| Frost National Bank Trust G-1-133985 | Carrizo Exploration, Inc. | Dent Ingram (Olmos 1) | 1 | 0 | 256K | Jan 1993 – Oct 2014 |
| Frost National Bank Trustee G-1-134399 | San Antonio Gas & Oil, Inc. | Dent Ingram (Olmos 1) | 1 | 0 | 16.3K | Jan 1993 – Dec 1997 |
| San Pedro Ranch G-1-135048 | Prime Operating Company | Hugh Fitzsimons (Olmos) | 1 | 0 | 1.16K | Jan 1993 – Jul 2002 |
| San Pedro Ranch D/S G-1-135049 | Prime Operating Company | Hugh Fitzsimons (Olmos) | 1 | 0 | 41.9K | Jan 1993 – Apr 1996 |
| Whataburger Unit G-1-135626 | Botasch Operating, LLC | Ed Stumberg (Olmos A) | 1 | 0 | 120K | Jan 1993 – Aug 2013 |
| Frost National Bank Trustee G-1-135627 | San Antonio Gas & Oil, Inc. | Dent Ingram (Olmos 1) | 1 | 0 | 10.5K | Jan 1993 – Jul 1997 |
| San Pedro Ranch G-1-135628 | Prime Operating Company | Hugh Fitzsimons (Olmos) | 1 | 0 | 182 | Jan 1993 – Sep 1994 |
| Stumberg Unit G-1-135808 | Botasch Operating, LLC | Ed Stumberg (Olmos A) | 1 | 0 | 5.12K | Jan 1993 – Aug 2013 |
| Votaw, Larry G-1-135812 | Carrizo Exploration, Inc. | Saint Thirteen (Olmos No. 1) | 1 | 0 | 93.9K | Jan 1993 – Aug 2009 |
| Light Ranch G-1-135893 | Lightning Oil Company | Doering Ranch (Buda) | 1 | 0 | 0 | Jan 1993 – Sep 2001 |
| Briscoe (Carla) G-1-138355 | Rim Operating, Inc. | Pearsall (Austin Chalk) | 1 | 0 | 0 | Jan 1993 – Jun 1994 |
| Hamilton "C" G-1-138663 | Seagull Operating Co., Inc. | Hamilton Ranch (Olmos) | 1 | 0 | 97.8K | Jan 1993 – Mar 2007 |
| Moro Creek Ranch G-1-138912 | MCR Operating Group | Catclaw (Olmos) | 1 | 0 | 19.8K | Jan 1993 – Jul 2026 |
| San Pedro Ranch G-1-138918 | Prime Operating Company | Hugh Fitzsimons (Olmos) | 1 | 0 | 0 | Jan 1993 – Oct 1994 |
| San Pedro Ranch G-1-138919 | Prime Operating Company | Hugh Fitzsimons (Olmos) | 1 | 0 | 11.2K | Jan 1993 – Feb 1995 |
| San Pedro Ranch G-1-138921 | Prime Operating Company | Hugh Fitzsimons (Olmos) | 1 | 0 | 0 | Jan 1993 – May 1994 |
| San Pedro Ranch G-1-139424 | Prime Operating Company | Hugh Fitzsimons (Olmos) | 1 | 0 | 0 | Jan 1993 – Sep 1994 |
| San Pedro Ranch G-1-139425 | Prime Operating Company | Hugh Fitzsimons (Olmos) | 1 | 0 | 1.93K | Jan 1993 – Oct 1993 |
| TRC G-1-139621 | Forney Oil Corporation | TRC (Olmos -E-) | 1 | 0 | 0 | Jan 1993 – Mar 1993 |
| Whataburger G-1-141311 | TJC Ventures, Inc. | Catarina, E. (Olmos A) | 1 | 0 | 812 | Jan 1993 – Jul 1994 |
| Ruth G-1-142379 | Thalmann, David Vac Service Inc | John High (Olmos No. 2) | 1 | 0 | 7.35K | Jan 1993 – Sep 2023 |
| Groce, J. G. G-1-147830 | Endeavor Natural Gas, LP | Pena Creek (Olmos 2350) | 1 | 0 | 51.3K | Jan 1993 – Jul 2026 |
| Tocquigney - Ammon G-1-150772 | Cavalier Oil & Gas, Inc. | Tocquigny (1900 Escondito) | 1 | 0 | 27.9K | Apr 1994 – Jun 1998 |
| Leblanc, H. W. G-1-152634 | Energyquest II, LLC | Pena Creek (Olmos 2400) | 1 | 0 | 23.4K | Sep 1994 – Oct 2012 |
| Webb, J.A. G-1-152975 | Flint Oak Energy, LLC | Pena Creek (Olmos 2400) | 1 | 0 | 3.09K | Aug 1994 – Jul 2026 |
| Webb, F. J. G-1-153085 | El Toro Resources LLC | Pena Creek (Escondido 1700) | 1 | 0 | 305 | Nov 1994 – Dec 2016 |