| Acevedo-Haering G-4-133190 | Columbus Energy, LLC | Acevedo (Lobo 6) | 1 | 16.3K | 3.53M | by Jan 1993 – Aug 2026 |
| BMT/K&H G-4-182797 | Mountain V Texas, LLC | Zwebb (10350) | 1 | 16.3K | 6.36M | May 2001 – Aug 2026 |
| B. M. T. G-4-198269 | Hilcorp Energy Company | B.M.T. (Lobo Cons.) | 1 | 16.3K | 1.6M | Aug 2003 – Aug 2026 |
| Alexander, Charles G-4-165974 | Columbus Energy, LLC | Bashara-Hereford (7300) | 1 | 16.3K | 6.32M | Dec 1997 – Aug 2026 |
| Frost National Bank G-4-138439 | Hilcorp Energy Company | Villegas (Middle Wilcox 7950) | 1 | 16.3K | 2.7M | by Jan 1993 – Aug 2026 |
| Galvan Ranch G-1-273011 | Caturus Energy, LLC | Briscoe Ranch (Eagleford) | 1 | 16.3K | 3.33M | Oct 2013 – Aug 2026 |
| Lundell Ranch G-4-142406 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 16.3K | 1.76M | by Jan 1993 – Aug 2026 |
| El Gato G-4-144362 | Chesapeake Operating, Inc. | Belle Jeffers, East (Lobo) | 1 | 16.2K | 2.21M | by Jan 1993 – Jun 2005 |
| Hirsch Estate 1766 G-4-158123 | Hilcorp Energy Company | Big Cowboy (Lobo) | 1 | 16.2K | 1.98M | Apr 1996 – Aug 2026 |
| Galvan Ranch G-1-270144 | Caturus Energy, LLC | Briscoe Ranch (Eagleford) | 1 | 16.2K | 3.06M | Aug 2012 – May 2026 |
| McKendrick, W. H. et Al G-4-152460 | Varas Energy Operating Company, | Cerrito Creek (Lobo Cons.) | 1 | 16.2K | 3.11M | Dec 1994 – Dec 2024 |
| Lundell G-4-107071 | Conocophillips Company | Vaquillas Ranch (Lobo Cons.) | 1 | 16.2K | 640K | by Jan 1993 – Mar 2009 |
| St. Joseph Unit O-4-3650 | Rebound Resources, Inc | St. Joseph (3100 Sand) | 21 | 16.2K | 21 | by Jan 1993 – May 2006 |
| Briscoe C (SA5) O-1-20417 | SM Energy Company | Lorenzo (Austin Chalk) | 1 | 16.2K | 56K | Jan 2022 – Jan 2022 |
| Lundell G-4-173339 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 16.1K | 3.2M | Jun 1999 – Aug 2026 |
| Frost National Bank G-4-123572 | Hilcorp Energy Company | Villegas (Middle Wilcox 7950) | 1 | 16.1K | 3.01M | by Jan 1993 – Aug 2026 |
| Gates "N" TR4 G-4-289022 | Lewis Petro Properties, Inc. | Gold River, North (Olmos) | 1 | 16.1K | 620K | Oct 2019 – Aug 2026 |
| Hubberd, William D G-4-151472 | Awp Operating Company | Hubberd (Lobo) | 1 | 16K | 1.56M | Oct 1994 – May 2001 |
| Vaquillas 136 "A" G-4-172677 | Three-C Oil and Gas | Vaquillas Ranch (Lobo) | 1 | 16K | 1.79M | Mar 1999 – Feb 2005 |
| Carr G-4-150939 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 16K | 2M | Aug 1994 – Aug 2026 |
| Vaquillas Ranch State F G-4-190837 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 16K | 1.41M | Aug 2002 – Aug 2026 |
| Piloncillo G-1-268423 | TBM Catarina, LLC | Briscoe Ranch (Eagleford) | 1 | 16K | 486K | Sep 2012 – Aug 2026 |
| Briscoe D G-4-157621 | Mountain V Texas, LLC | Black Creek (Lobo) | 1 | 15.9K | 2.15M | Jan 1996 – Aug 2026 |
| James Trust G-1-279242 | Lewis Petro Properties, Inc. | Hawkville (Eagleford Shale) | 1 | 15.9K | 4.27M | Jun 2015 – Aug 2026 |
| Perez-Rowden O-4-11711 | Petroleum Developments Int LLC | New Malo Sueno (Crockett) | 1 | 15.9K | 14 | by Jan 1993 – Jun 2002 |
| Frost Trust 13 G-4-183946 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 15.9K | 2.36M | Jun 2001 – Aug 2026 |
| Lundell G-4-212885 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 15.9K | 746K | Jul 2005 – May 2025 |
| Vaquillas L6 G-4-213610 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 15.9K | 249K | Jan 2006 – Aug 2026 |
| Meador 1451 G-1-273616 | Lewis Petro Properties, Inc. | Briscoe Ranch (Eagleford) | 1 | 15.9K | 4.79M | Nov 2013 – Aug 2026 |
| Galvan Ranch G-1-281146 | Caturus Energy, LLC | Briscoe Ranch (Eagleford) | 1 | 15.9K | 3.2M | Jul 2016 – Aug 2026 |
| Piloncillo G-1-270572 | TBM Catarina, LLC | Briscoe Ranch (Eagleford) | 1 | 15.9K | 226K | Jun 2011 – Jul 2015 |
| Lundell G-4-145660 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 15.8K | 1.78M | Apr 1993 – Feb 1999 |
| Vaquillas Ranch A1 G-4-177526 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 15.8K | 1.46M | May 2000 – Aug 2026 |
| Vaquillas Ranch a 1 G-4-141009 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 15.8K | 818K | by Jan 1993 – Aug 2026 |
| Pena-Rodriquez Gas Unit G-4-164075 | Chevron U. S. A. Inc. | Ortiz (Lobo) | 1 | 15.8K | 1.41M | Jul 1997 – Mar 2002 |
| Galvan Ranch G-1-283350 | Caturus Energy, LLC | Briscoe Ranch (Eagleford) | 1 | 15.8K | 3.37M | Oct 2022 – Aug 2026 |
| Vaquillas Ranch-A1 G-4-103083 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 15.7K | 1.43M | by Jan 1993 – Aug 2026 |
| Vaquillas G-4-263289 | Hilcorp Energy Company | Tiffany (Wilcox Carrizo) | 1 | 15.7K | 756K | Oct 2010 – Aug 2026 |
| Bonebrake G-4-247245 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 15.7K | 1.18M | May 2008 – Aug 2026 |
| Hereford -T- G-4-169352 | Merit Energy Company | Bashara-Hereford (7300) | 1 | 15.7K | 3.22M | May 1998 – Aug 2026 |
| Bruni Summers G-4-179106 | Killam Oil Co., Ltd. | Rottersman (8500) | 1 | 15.7K | 1.73M | Sep 2000 – Aug 2026 |
| Puig G-4-136237 | Rincon Petroleum Corporation | Muy Malo (4TH Hinnant) | 1 | 15.6K | 668K | by Jan 1993 – Jul 2011 |
| Briscoe B GU1 G-1-260308 | SM Energy Company | Briscoe Ranch (Eagleford) | 1 | 15.6K | 478K | Nov 2010 – Sep 2018 |
| Las Raices Ranch G-4-263294 | XTO Energy Inc. | Gates Ranch (Eagle Ford Shale) | 1 | 15.6K | 559K | Apr 2011 – Aug 2026 |
| Galvan Ranch G-1-292784 | Caturus Energy, LLC | Briscoe Ranch (Eagleford) | 1 | 15.6K | 6.38M | Jul 2022 – Aug 2026 |
| Petty Ranch O-1-14287 | Rosetta Resources Operating LP | Catarina, SW. (Olmos-2) | 1 | 15.6K | 64.9K | Dec 1999 – Feb 2005 |
| Benavides FMT G-4-213824 | Mountain V Texas, LLC | Tiffany (Wilcox Carrizo) | 1 | 15.6K | 2.8M | Sep 2005 – Aug 2026 |
| South Marshall St Wells Fargo GU G-4-201337 | Mountain V Texas, LLC | Tiffany (Wilcox Carrizo) | 1 | 15.6K | 2.02M | Apr 2004 – Apr 2017 |
| Carr G-4-157856 | Conocophillips Company | Vaquillas Ranch (Lobo Cons.) | 1 | 15.5K | 2.64M | Feb 1996 – Jul 2003 |
| B.M.T. Alice B. Hall G-4-126000 | Hilcorp Energy Company | Aviators, South (Wilcox 9900) | 1 | 15.5K | 2.6M | by Jan 1993 – Dec 2022 |