| Yturria, H. G-4-198215 | Cody Energy LLC | Raymondville (Consolidated) | 1 | 10.3K | 2.43M | Jul 2003 – Feb 2012 |
| Yturria G-4-218162 | Blakenergy Operating, LLC | La Sara, NE. (7550) | 1 | 10K | 176K | Mar 2006 – Feb 2009 |
| Cavazos, J. C. O-4-11229 | Citation Oil & Gas Corp. | Willamar (5120) | 1 | 9.48K | 8.33K | by Jan 1993 – Sep 1997 |
| Yturria Cattle Co. -B- O-4-6565 | Maynard Oil Co. | La Sara, N. (No. 32 Sd.) | 1 | 8.88K | 38 | by Jan 1993 – Apr 1995 |
| Studebaker, James R. G-4-203187 | Nadcf Recovery Group, Inc. | Studebaker (Lower Frio) | 1 | 8.79K | 439K | Mar 2003 – Oct 2011 |
| Kleberg, R J Jr TR Stillman G-4-164148 | EOG Resources, Inc. | Tordilla (Deep Cons.) | 1 | 8.61K | 10.4M | Jun 1997 – Oct 2020 |
| Yturria, Frank D. G-4-190239 | Cody Energy LLC | Raymondville (Consolidated) | 1 | 8.52K | 1.82M | Jul 2002 – Nov 2009 |
| Yturria Cattle Co. O-4-10073 | Saga Petroleum Corp. | La Sara (No. 10 Sand) | 1 | 8.14K | 16 | by Jan 1993 – Aug 1994 |
| Grimes G-4-226136 | Suemaur Expl. & Prod., LLC | Chile Vieja (Frio) | 1 | 7.89K | 114K | Mar 2007 – Nov 2007 |
| Yturria G-4-253806 | La Sara Operating Company, LLC | La Sara (No. 40 Sand) | 1 | 7.8K | 157K | Aug 2009 – Oct 2014 |
| Vaughan G-4-223029 | XTO Energy Inc. | I. Y. Garcia (Frio) | 1 | 7.78K | 497K | Nov 2006 – Jan 2017 |
| Yturria O-4-13521 | Blakenergy Operating, LLC | La Sara (No. 40 Sand) | 1 | 7.75K | 108K | Aug 2008 – Jul 2009 |
| Yturria, Fausto Jr. G-4-229580 | Texas Oil and Gas Operating, LLC | La Sal Vieja (Deep) | 1 | 7.7K | 339K | May 2007 – May 2013 |
| Thomas, M.G. et Al G-4-133022 | XTO Energy Inc. | Tordilla (M-50,E) | 1 | 7.57K | 6.63M | by Jan 1993 – Jan 2013 |
| Coleman Unit G-4-238113 | Dewbre Petroleum Corporation | La Sal Vieja (Frio 11100) | 1 | 7.43K | 245K | May 2008 – Sep 2012 |
| Gas Unit/C/Zone 7 G-4-142566 | Proline Energy Resources Inc | La Sal Vieja (8 9680-9935) | 1 | 7.3K | 1.54M | by Jan 1993 – Sep 2012 |
| Polis - Hagan Unit O-4-12311 | MW Petroleum Corporation | La Sal Vieja | 1 | 7.16K | 5.41K | Aug 1993 – Sep 1995 |
| Yturria O-4-13888 | Texas Oil and Gas Operating, LLC | La Sara (No. 19 Sand, Upper) | 1 | 7.08K | 0 | Apr 2014 – Apr 2015 |
| Cavazos, J C O-4-13288 | Citation Oil & Gas Corp. | Willamar | 1 | 7.04K | 6.34K | Jan 2005 – Oct 2006 |
| Parham O-4-13470 | Cimarron Engineering, LLC | King Ranch, W. (Miocene 6000) | 1 | 6.96K | 0 | Dec 2007 – Feb 2014 |
| Mackey G-4-142540 | Hanson Production Company | La Sal Vieja (Deep) | 1 | 6.46K | 79.8K | by Jan 1993 – Feb 1995 |
| Yturria, Frank D. et Al O-4-13055 | Cody Energy LLC | Raymondville (6750) | 1 | 6.4K | 9.09K | Sep 2001 – Jan 2002 |
| Sauz Ranch Mulatos Past. O-4-10529 | Chestnut Explor. and Prod., Inc. | Willamar, West (Miocene 6050,N) | 4 | 6.25K | 5.8K | Jul 1997 – Mar 2000 |
| Yturria O-4-13550 | Texas Oil and Gas Operating, LLC | La Sara, E. (7890) | 1 | 5.95K | 22K | Feb 2009 – Jul 2020 |
| Yturria, H. G-4-200685 | Apollo Petro Fuels LLC | Raymondville (Consolidated) | 1 | 5.86K | 315K | Mar 2004 – Dec 2021 |
| Cowden G-4-242330 | Dewbre Petroleum Corporation | La Sal Vieja (27787-8240) | 1 | 5.68K | 225K | Oct 2008 – Feb 2012 |
| Yturria, H. G-4-206932 | Apollo Petro Fuels LLC | Raymondville (Consolidated) | 1 | 5.48K | 1.26M | Dec 2004 – Apr 2021 |
| Yturria, Frank D. et Al G-4-184401 | Cody Energy LLC | Raymondville (Consolidated) | 1 | 5.18K | 982K | Jul 2001 – Sep 2005 |
| Yturria Cattle Co. O-4-8521 | Petroleum Management, Inc. | La Sara N.E. (6070) | 2 | 4.99K | 9.36K | by Jan 1993 – Jul 1999 |
| Holloway, C. R. O-4-12794 | Apache Corporation | La Sal Vieja | 1 | 4.99K | 35K | Jun 1998 – Jul 2000 |
| 7400' Gas Unit G-4-160061 | Apache Corporation | La Sal Vieja (7400) | 1 | 4.97K | 328K | Jun 1996 – Aug 1998 |
| Kleberg, R J Jr TR Stillman G-4-257983 | EOG Resources, Inc. | Tordilla (Deep Cons.) | 1 | 4.88K | 478K | Aug 2010 – Apr 2022 |
| Thomas Unit G-4-230934 | Dewbre Petroleum Corporation | Riggan (F-20) | 1 | 4.82K | 246K | Sep 2007 – Nov 2019 |
| Yturria O-4-13661 | Texas Oil and Gas Operating, LLC | La Sara, E. (8200) | 1 | 4.7K | 6.72K | Apr 2011 – Oct 2015 |
| 7300' Gas Unit G-4-156892 | Proline Energy Resources Inc | La Sal Vieja (7300) | 1 | 4.65K | 206K | Oct 1995 – Jun 1998 |
| Yturria L & C Co. NCT-2 O-4-6537 | Petro-Hunt Corporation | Raymondville | 2 | 4.64K | 17K | May 1993 – May 1996 |
| Vaughan O-4-13366 | Dominion Expl. & Prod., Inc. | I. Y. Garcia (Frio) | 1 | 4.58K | 444K | Nov 2005 – Oct 2006 |
| Tordilla Field Gas Unit 1 G-4-159649 | EOG Resources, Inc. | Tordilla (M-50,E) | 1 | 4.57K | 3.94M | Mar 1996 – Mar 2020 |
| Yturria, Frank D. G-4-186873 | Cody Energy LLC | Raymondville (Consolidated) | 1 | 4.51K | 886K | Aug 2001 – May 2007 |
| Morrow G-4-183467 | EOG Resources, Inc. | Raymondville (Consolidated) | 1 | 4.38K | 737K | Jun 2001 – Apr 2013 |
| Corbett Fryer Dobbin Unit G-4-160448 | Wynn-Crosby Energy, Inc. | La Sal Vieja (9 9935-10000) | 1 | 4.36K | 1.75M | Oct 1996 – Dec 2002 |
| Cavazos, Nicolas O-4-10577 | Citation Oil & Gas Corp. | Willamar (5120) | 1 | 4.35K | 8.8K | by Jan 1993 – Jul 1994 |
| Yturria Cattle Co. O-4-11278 | Discovery Petroleum, L.L.C. | La Sara (No. 8 Sand) | 1 | 4.16K | 18 | by Jan 1993 – Oct 1994 |
| Thomas, M. G. G-4-168235 | XTO Energy Inc. | Tordilla (M-50,E) | 1 | 4.14K | 4.16M | Feb 1998 – Jan 2017 |
| Yturria, H. G-4-243254 | Apollo Petro Fuels LLC | Raymondville (Consolidated) | 1 | 4.1K | 1.1M | Dec 2006 – Dec 2024 |
| Yturria, H. G-4-179591 | Cody Energy LLC | Raymondville (Consolidated) | 1 | 4.07K | 276K | Aug 2000 – Mar 2003 |
| Yturria, H. G-4-226180 | Apollo Petro Fuels LLC | Raymondville (Consolidated) | 1 | 3.98K | 14.1K | Jan 2007 – Feb 2023 |
| Willamar Community "U" O-4-9916 | Citation Oil & Gas Corp. | Willamar (5120) | 2 | 3.87K | 53.1K | by Jan 1993 – Jul 1995 |
| Cantu O-4-13924 | Dewbre Petroleum Corporation | La Sara (No. 41 Sand) | 1 | 3.85K | 3 | Nov 2014 – Jun 2017 |
| Yturria, H. et Al G-4-175600 | Apollo Petro Fuels LLC | Raymondville (Consolidated) | 1 | 3.73K | 1.12M | Nov 1999 – Nov 2017 |