| Santa Elena G-4-274242 | Lewis Petro Properties, Inc. | Owen (Olmos) | 1 | 17.3K | 3.45M | Dec 2013 – Aug 2026 |
| Galvan Ranch G-1-274599 | Caturus Energy, LLC | Briscoe Ranch (Eagleford) | 1 | 17.2K | 5.78M | May 2014 – Aug 2026 |
| Lundell G-4-215816 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 17.1K | 2.63M | Sep 2005 – Aug 2026 |
| Galvan Ranch G-1-274785 | Caturus Energy, LLC | Briscoe Ranch (Eagleford) | 1 | 17.1K | 7.44M | May 2014 – Aug 2026 |
| Bruni Mineral Trust North TR "A" G-4-170306 | Lakeshore Operating, LLC | Valley (Navarro) | 1 | 17.1K | 9.61M | Dec 1998 – Jun 2022 |
| Rancho Blanco G-4-155948 | Columbus Energy, LLC | Rancho Blanco (Lobo) | 1 | 17.1K | 4.54M | Oct 1995 – Jun 2012 |
| Dcrc "4" G-4-156953 | Apache Corporation | Moca | 1 | 17.1K | 339K | Nov 1995 – Apr 1998 |
| Gates "N" TR4 G-4-289775 | Lewis Petro Properties, Inc. | Gold River, North (Olmos) | 1 | 17.1K | 370K | Oct 2019 – Aug 2026 |
| Billings A G-4-189376 | Mountain V Texas, LLC | Tiffany (Wilcox Carrizo) | 1 | 17K | 3.9M | May 2002 – Aug 2026 |
| Carr G-4-145751 | Conocophillips Company | Vaquillas Ranch (Lobo Cons.) | 1 | 17K | 1.22M | Jun 1993 – Aug 2002 |
| BMT/K&H G-4-179473 | Mountain V Texas, LLC | Zwebb (10350) | 1 | 17K | 2.25M | Oct 2000 – Oct 2023 |
| Hereford, L. M. -A- G-4-233205 | Merit Energy Company | Bashara-Hereford (7300) | 1 | 17K | 2.32M | Oct 2007 – Jan 2025 |
| Webb County School Land 504 G-1-274956 | Lewis Petro Properties, Inc. | Hawkville (Eagleford Shale) | 1 | 17K | 6.57M | May 2014 – Aug 2026 |
| Leyendecker et Al G-4-164167 | Hilcorp Energy Company | Benavides (Lobo Cons.) | 1 | 17K | 1.37M | Aug 1997 – Aug 2026 |
| Lundell A G-4-165474 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 17K | 958K | Nov 1997 – Aug 2026 |
| B.M.T. C G-4-192069 | Hilcorp Energy Company | B.M.T. (Lobo Cons.) | 1 | 17K | 5.1M | Oct 2002 – Aug 2026 |
| Vaquillas G-4-229872 | Hilcorp Energy Company | Tiffany (Wilcox Carrizo) | 1 | 16.9K | 965K | Jul 2005 – Aug 2026 |
| Piloncillo G-1-268353 | TBM Catarina, LLC | Briscoe Ranch (Eagleford) | 1 | 16.9K | 474K | Sep 2012 – Aug 2026 |
| Benavides, Rosa V. "E" G-4-102283 | Hilcorp Energy Company | Benavides (Lobo Cons.) | 1 | 16.9K | 812K | by Jan 1993 – Aug 2026 |
| Lundell G-4-136021 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 16.9K | 4.48M | by Jan 1993 – Aug 2026 |
| Dix Ranch State E G-4-183248 | Conocophillips Company | Dix Ranch (Lower Wilcox Lobo) | 1 | 16.9K | 914K | May 2001 – Oct 2012 |
| Despain, Walter G-4-185464 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 16.9K | 2.68M | Sep 2001 – Aug 2026 |
| Vaquillas Ranch Co. S.G.U. G-4-195181 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 16.9K | 1.41M | Apr 2003 – Aug 2026 |
| Galvan Ranch G-1-281017 | Caturus Energy, LLC | Briscoe Ranch (Eagleford) | 1 | 16.8K | 2.74M | May 2017 – Aug 2026 |
| Dix Ranch A G-4-142103 | Hilcorp Energy Company | Dix Ranch (Lower Wilcox Lobo) | 1 | 16.7K | 2.06M | by Jan 1993 – Aug 2026 |
| B.M.T. A G-4-208226 | Hilcorp Energy Company | B.M.T. (Middle Wilcox) | 1 | 16.7K | 9M | Oct 2004 – Aug 2026 |
| Ramirez, J.E. G-4-154814 | Hilcorp Energy Company | Laredo (Lobo) | 1 | 16.7K | 2.1M | Jul 1995 – Aug 2026 |
| A.M. Bruni Estate "1571" G-4-168192 | Killam Oil Co., Ltd. | Presa de Oro (Lobo No. 6) | 1 | 16.7K | 1.77M | Mar 1998 – Jan 2014 |
| Slator Ranch G-4-219890 | Mountain V Texas, LLC | Stirling (Wilcox Consolidated) | 1 | 16.7K | 6.53M | Mar 2006 – Jun 2026 |
| San Roman 1508 G-4-274350 | Lewis Petro Properties, Inc. | Owen (Olmos) | 1 | 16.6K | 1.83M | Aug 2013 – Sep 2024 |
| K & H Fee "1575" G-4-159082 | Killam Oil Co., Ltd. | Benavides (Lobo Cons.) | 1 | 16.6K | 1.72M | Apr 1996 – Jul 2020 |
| Benavides, Rosa V. A1 G-4-201866 | Hilcorp Energy Company | Benavides (Lobo Cons.) | 1 | 16.6K | 1.87M | Oct 2003 – Aug 2026 |
| Killam-Hurd-Amoco G-4-104939 | Killam Oil Co., Ltd. | Casa Verde (Hirsch Lower) | 1 | 16.6K | 5.12M | by Jan 1993 – Dec 2021 |
| Petty Ranch G-1-180621 | White Oak Operating Company LLC | Catarina, SW. (San Miguel-Gas) | 1 | 16.6K | 1.08M | Nov 2000 – Feb 2016 |
| B.M.T. G-4-170799 | Hilcorp Energy Company | B.M.T. (Lobo Cons.) | 1 | 16.6K | 1.29M | Oct 1998 – Aug 2026 |
| Vaquillas Ranch Co. Ltd. G-4-139186 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 16.6K | 1.87M | by Jan 1993 – Jul 2008 |
| Alley G-4-205616 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 16.6K | 1.57M | Oct 2004 – Aug 2026 |
| Billings Heirs G-4-202732 | Conocophillips Company | Big Cowboy (Lobo) | 1 | 16.5K | 1.5M | Apr 2004 – Dec 2010 |
| Bruni Mineral "A" G-4-173766 | Killam Oil Co., Ltd. | B.M.T. (Lobo Cons.) | 1 | 16.5K | 1.17M | Jun 1999 – Aug 2026 |
| Killam & Hurd Fee 1614 G-4-199698 | Killam Oil Co., Ltd. | B.M.T. (Lobo Cons.) | 1 | 16.5K | 1.06M | May 2003 – Aug 2026 |
| El Gato "A" G-4-142248 | Marwell Petroleum Ltd Partnrship | Belle Jeffers, East (Lobo) | 1 | 16.5K | 3.18M | by Jan 1993 – Aug 2008 |
| Van ES G-4-168716 | Columbus Energy, LLC | Cuba Libre (3RD Hinnant) | 1 | 16.5K | 924K | Mar 1998 – Nov 2010 |
| Vaquillas Ranch L4 G-4-143605 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 16.5K | 2.31M | by Jan 1993 – Dec 2017 |
| Reese C G-1-287465 | Trinity Operating (Usg), LLC | Hawkville (Eagleford Shale) | 1 | 16.5K | 9.64M | Jul 2019 – Aug 2026 |
| Briscoe R GU5 State G-1-281010 | SM Energy Company | Briscoe Ranch (Eagleford) | 1 | 16.4K | 1.88M | Sep 2017 – Aug 2026 |
| Vaquillas Ranch A1 G-4-135310 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 16.4K | 1.11M | by Jan 1993 – Aug 2026 |
| K&H Fee "B" 1569 G-4-100340 | Killam Oil Co., Ltd. | Presa de Oro (Lobo No. 6) | 1 | 16.4K | 1.82M | by Jan 1993 – Jan 2008 |
| Laurel, P. G-4-158349 | Varas Energy Operating Company, | Cuba Libre (3RD Hinnant) | 1 | 16.4K | 710K | Mar 1996 – Nov 2008 |
| Vaquillas Ranch Co. Ltd. G-4-123424 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 16.3K | 1.01M | by Jan 1993 – Aug 2026 |
| BMT/K&H G-4-179827 | Mountain V Texas, LLC | Zwebb (10350) | 1 | 16.3K | 3.35M | Oct 2000 – Aug 2026 |