| Carr G-4-186990 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 12.6K | 1.04M | Dec 2001 – Aug 2026 |
| Carr G-4-173059 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 12.6K | 1.15M | Feb 1999 – Aug 2026 |
| South Callaghan Ranch G-4-222998 | Aldine Oil and Gas, LP | Beccero Creek (Lobo Cons.) | 1 | 12.6K | 3M | Aug 2006 – Aug 2026 |
| Vaquillas Ranch A5 G-4-136222 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 12.6K | 1.21M | by Jan 1993 – Aug 2026 |
| Santa Elena G-4-274847 | Lewis Petro Properties, Inc. | Owen (Olmos) | 1 | 12.6K | 2.49M | Dec 2013 – Aug 2026 |
| Vaquillas-State G-4-261695 | Hilcorp Energy Company | Tiffany (Wilcox Carrizo) | 1 | 12.6K | 1.1M | Nov 2010 – Aug 2026 |
| B.M.T. G-4-170404 | Hilcorp Energy Company | Cerrito Creek (Wilcox) | 1 | 12.6K | 3.59M | Sep 1998 – Aug 2026 |
| Dix Ranch A-1768 G-4-162538 | Hilcorp Energy Company | Dix Ranch (Lower Wilcox Lobo) | 1 | 12.5K | 809K | Jan 1997 – Aug 2026 |
| Vaquillas Ranch J G-4-166010 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 12.5K | 1.42M | Nov 1997 – Aug 2020 |
| Vaquillas Ranch 67 G-4-174095 | Three-C Oil and Gas | Big Cowboy (Lobo) | 1 | 12.5K | 1.45M | Aug 1999 – Nov 2009 |
| Ellen C. G-4-277541 | Caturus Energy, LLC | Owen (Olmos) | 1 | 12.5K | 4.63M | Nov 2016 – Aug 2026 |
| Vergara 1680 G-4-150210 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 12.5K | 518K | Jun 1994 – Jul 2023 |
| Carr "B" G-4-139321 | Conoco Inc. | Vaquillas Ranch (Lobo Cons.) | 1 | 12.5K | 1.18M | by Jan 1993 – Dec 1999 |
| Killam-Hurd-Amoco G-4-125272 | Killam Oil Co., Ltd. | Casa Verde (Hirsch Lower) | 1 | 12.4K | 2.93M | by Jan 1993 – Aug 2026 |
| Frost National Bank G-4-143981 | Hilcorp Energy Company | Villegas (Middle Wilcox 7950) | 1 | 12.4K | 2.76M | by Jan 1993 – Jan 2012 |
| Benavides, Rosa V. E5 G-4-155840 | Hilcorp Energy Company | Benavides (Lobo Cons.) | 1 | 12.4K | 717K | Sep 1995 – Aug 2026 |
| Block, Anna G-4-130731 | Columbus Energy, LLC | Bashara-Hereford (7300) | 1 | 12.4K | 2.94M | by Jan 1993 – Aug 2026 |
| Huisache Cattle Company A G-4-274256 | Lewis Petro Properties, Inc. | Owen (Olmos) | 1 | 12.4K | 1.82M | Feb 2014 – Aug 2026 |
| Lundell G-4-95558 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 12.4K | 1.38M | by Jan 1993 – Aug 2026 |
| Briscoe R GU5 State G-1-281219 | SM Energy Company | Briscoe Ranch (Eagleford) | 1 | 12.4K | 2.03M | Sep 2017 – Aug 2026 |
| Bruni Mineral Trust "B" G-4-197250 | Hilcorp Energy Company | Hubberd (Lobo) | 1 | 12.3K | 4.25M | Jul 2003 – Aug 2026 |
| Lechenger G-4-166068 | Conoco Inc. | Benavides (Lobo Cons.) | 1 | 12.3K | 1.37M | Dec 1997 – Jun 2001 |
| Vergara G-4-157328 | Conocophillips Company | Vaquillas Ranch (Lobo Cons.) | 1 | 12.3K | 703K | Feb 1996 – Feb 1999 |
| Dinn Mineral Trusts, The O-4-12055 | Hilcorp Energy Company | Guerra (3800) | 1 | 12.3K | 17 | by Jan 1993 – Oct 1996 |
| Vaquillas Ranch "L" G-4-155893 | Hilcorp Energy Company | Benavides (Lobo Cons.) | 1 | 12.3K | 744K | Sep 1995 – Apr 2010 |
| Rancho Blanco G-4-177063 | Columbus Energy, LLC | Rancho Blanco (Lobo) | 1 | 12.3K | 4.32M | Apr 2000 – Aug 2026 |
| San Ambrosia D (SA4) O-1-20146 | SM Energy Company | Lorenzo (Austin Chalk) | 1 | 12.3K | 51.1K | Jan 2022 – Jan 2022 |
| Galvan Ranch G-1-284692 | Caturus Energy, LLC | Briscoe Ranch (Eagleford) | 1 | 12.3K | 7.2M | Apr 2019 – Aug 2026 |
| Hirsch Estate Gas Unit 1766 G-4-129859 | Hilcorp Energy Company | El Caballero (Lobo) | 1 | 12.3K | 758K | Feb 1993 – Aug 2026 |
| Billings Heirs G-4-204074 | Hilcorp Energy Company | Big Cowboy (Lobo) | 1 | 12.3K | 2.15M | Jun 2004 – Aug 2026 |
| BMT/K&H "F" G-4-178051 | EOG Resources, Inc. | Zwebb (10350) | 1 | 12.2K | 488K | Jul 2000 – Aug 2010 |
| Stanford, P. H. G-4-196433 | Aldine Oil and Gas, LP | Beccero Creek (Lobo Cons.) | 1 | 12.2K | 854K | Aug 2003 – Aug 2026 |
| Roscher-Hirsch Gas Unit G-4-139238 | Hilcorp Energy Company | Big Cowboy (Lobo) | 1 | 12.2K | 1.28M | by Jan 1993 – Aug 2026 |
| Ramirez,j.e. G-4-69290 | Hilcorp Energy Company | Laredo (Lobo) | 1 | 12.2K | 3.63M | by Jan 1993 – Aug 2025 |
| Dawson GU G-1-266146 | Lewis Petro Properties, Inc. | Briscoe Ranch (Eagleford) | 1 | 12.2K | 810K | Aug 2011 – Aug 2026 |
| Vaquillas 135A G-4-142456 | Columbus Energy, LLC | Vaquillas Ranch (Lobo) | 1 | 12.2K | 378K | by Jan 1993 – Jun 1997 |
| Villarreal G-4-176394 | Varas Energy Operating Company, | Pok - a - Dot (8600) | 1 | 12.2K | 1.28M | Mar 2000 – Apr 2025 |
| B.M.T. G-4-172482 | Hilcorp Energy Company | B.M.T. (Lobo Cons.) | 1 | 12.1K | 3.66M | Feb 1999 – Aug 2026 |
| Martin, J. C. 111 TR G-4-166775 | Killam Oil Co., Ltd. | Dolores Creek, South (Wx. 9200) | 1 | 12.1K | 1.49M | Jan 1998 – Aug 2026 |
| Rosa V. Benavides G-4-269451 | Caturus Energy, LLC | Owen (Olmos) | 1 | 12.1K | 982K | Jan 2013 – Aug 2026 |
| BMT G-4-160253 | Columbus Energy, LLC | Clark Ranch (Lobo) | 1 | 12.1K | 1.92M | Sep 1996 – Aug 2026 |
| Ramirez, M. & M. Gas Unit G-4-150657 | Arete Operating Company III, LLC | Barrera (Lobo) | 1 | 12.1K | 2.69M | May 1994 – Aug 2026 |
| B.M.T. A G-4-221159 | Hilcorp Energy Company | B.M.T. (Middle Wilcox) | 1 | 12.1K | 4.33M | Apr 2006 – Aug 2026 |
| Trevino, Geronimo 1592 G-4-170013 | Killam Oil Co., Ltd. | Benavides (Lobo Cons.) | 1 | 12.1K | 1.02M | Jun 1998 – May 2011 |
| Vaquillas 1647 G-4-121967 | Three-C Oil and Gas | Vaquillas Ranch (Lobo) | 1 | 12.1K | 799K | by Jan 1993 – Apr 2023 |
| Hubberd "B" G-4-213103 | Hilcorp Energy Company | Hubberd (Lobo) | 1 | 12.1K | 1.42M | Mar 2005 – Aug 2026 |
| Vergara 1674 G-4-150181 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 12K | 942K | Jun 1994 – Jul 2026 |
| Hubberd "B" G-4-211342 | Hilcorp Energy Company | Liz (8200) | 1 | 12K | 2.01M | May 2005 – Aug 2026 |
| San Roman 1508 G-4-274186 | Lewis Petro Properties, Inc. | Owen (Olmos) | 1 | 12K | 788K | Dec 2013 – Aug 2026 |
| Briscoe-Manry 1393 G-4-266705 | Lewis Petro Properties, Inc. | Owen (Olmos) | 1 | 12K | 2.19M | Aug 2011 – Aug 2026 |