| Killam & Hurd Fee 1496 G-4-235678 | Killam Oil Co., Ltd. | Umbrella, North (Lobo Cons.) | 1 | 31.1K | 2.44M | Mar 2008 – Jan 2023 |
| Briscoe R G-1-273679 | SM Energy Company | Briscoe Ranch (Eagleford) | 1 | 31.1K | 980K | Jan 2014 – Aug 2026 |
| De Benavides, Rosa V. "C" O-4-10232 | Killam Oil Co., Ltd. | Cole, West | 2 | 31.1K | 21 | by Jan 1993 – Dec 2008 |
| Vaquillas G-4-265594 | Hilcorp Energy Company | Tiffany (Wilcox Carrizo) | 1 | 31.1K | 4.68M | Sep 2011 – Aug 2026 |
| James Trust G-1-279148 | Lewis Petro Properties, Inc. | Hawkville (Eagleford Shale) | 1 | 31K | 3.74M | Jun 2015 – Aug 2026 |
| Vaquillas Ranch Co. Ltd G-4-163765 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 31K | 2M | Jul 1997 – Aug 2026 |
| Killam and Hurd Fee 1504 G-4-256351 | Killam Oil Co., Ltd. | Valley (Navarro) | 1 | 31K | 8.7M | May 2010 – Aug 2026 |
| Briscoe R G-1-281000 | SM Energy Company | Briscoe Ranch (Eagleford) | 1 | 30.9K | 1.64M | Jul 2016 – Aug 2026 |
| Gates 09 Rose a BVP G-4-274490 | Rosetta Resources Operating LP | Gates Ranch (Eagle Ford Shale) | 1 | 30.8K | 1.17M | May 2014 – Aug 2026 |
| Briscoe G GU8 State G-1-268599 | SM Energy Company | Briscoe Ranch (Eagleford) | 1 | 30.8K | 466K | Aug 2012 – Feb 2018 |
| Benavides, Rosa V. "D" G-4-139208 | Hilcorp Energy Company | Benavides (Lobo Cons.) | 1 | 30.8K | 3.3M | by Jan 1993 – Aug 2026 |
| Vaquillas Ranch A-1 G-4-162353 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 30.8K | 2.2M | Mar 1997 – Aug 2026 |
| Piloncillo G-1-268415 | TBM Catarina, LLC | Briscoe Ranch (Eagleford) | 1 | 30.7K | 645K | Sep 2012 – Aug 2026 |
| Galvan Ranch G-1-271543 | Caturus Energy, LLC | Briscoe Ranch (Eagleford) | 1 | 30.7K | 6.89M | Mar 2013 – Aug 2026 |
| Vaquillas-Borrego G-4-200020 | Killam Oil Co., Ltd. | Pok - a - Dot (8600) | 1 | 30.6K | 1.36M | Jan 2004 – Aug 2016 |
| Dcrc "3" O-4-12342 | Killam Oil Co., Ltd. | Moca (Wilcox Sand 2) | 1 | 30.6K | 199K | Apr 1994 – Jan 1998 |
| Vaquillas Ranch A G-4-166272 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 30.6K | 3.09M | Dec 1997 – Aug 2026 |
| Galvan Ranch G-1-269250 | Caturus Energy, LLC | Briscoe Ranch (Eagleford) | 1 | 30.6K | 2.62M | May 2012 – Apr 2026 |
| Carr G-4-153188 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 30.5K | 2.91M | Jan 1995 – Aug 2026 |
| Ramirez-Malakoff Unit G-4-154454 | Hilcorp Energy Company | Laredo (Lobo) | 1 | 30.5K | 3.8M | May 1995 – Aug 2026 |
| Benavides, Rosa V. D2 G-4-160299 | Hilcorp Energy Company | Benavides (Lobo Cons.) | 1 | 30.4K | 564K | Sep 1996 – Jul 2009 |
| Flores, Daniel 762 G-4-167446 | Varas Energy Operating Company, | Schwarz (Flores) | 1 | 30.4K | 3.53M | Apr 1998 – Feb 2026 |
| Long, A. G. Heirs 'A' G-1-301384 | Lewis Petro Properties, Inc. | Briscoe Ranch (Eagleford) | 1 | 30.3K | 1.47M | Dec 2025 – Aug 2026 |
| Piloncillo G-1-266825 | TBM Catarina, LLC | Briscoe Ranch (Eagleford) | 1 | 30.3K | 794K | Sep 2011 – Aug 2026 |
| Vaquillas Ranch F1 G-4-150573 | Conocophillips Company | Vaquillas Ranch (Lobo Cons.) | 1 | 30.3K | 1.09M | Aug 1994 – Mar 2004 |
| Carr G-4-151028 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 30.2K | 3.23M | Sep 1994 – Aug 2026 |
| Lundell "C" G-4-171093 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 30.2K | 1.6M | Sep 1998 – Mar 2010 |
| Briscoe G (SA3) G-1-281064 | SM Energy Company | Briscoe Ranch (Eagleford) | 1 | 30.2K | 494K | Jul 2016 – Jul 2020 |
| C-Bruni Mineral Trust G-4-158097 | Hilcorp Energy Company | Bashara-Hereford (7300) | 1 | 30.1K | 3.97M | Mar 1996 – Aug 2026 |
| Piloncillo G-1-275235 | TBM Catarina, LLC | Briscoe Ranch (Eagleford) | 1 | 30K | 487K | Aug 2015 – Aug 2026 |
| K&H Fee 'a' 1569 G-4-152002 | Killam Oil Co., Ltd. | Presa de Oro (Lobo No. 6) | 1 | 30K | 3.31M | Nov 1994 – Aug 2026 |
| Cabezon G-4-189382 | Mountain V Texas, LLC | Zwebb (10350) | 1 | 30K | 810K | Feb 2002 – Jun 2026 |
| Vergara, G.B. G-4-133512 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 30K | 2.06M | by Jan 1993 – May 2024 |
| South Marshall St Wells Fargo GU G-4-200503 | Mountain V Texas, LLC | Tiffany (Wilcox Carrizo) | 1 | 30K | 2.56M | Feb 2004 – Aug 2026 |
| Briscoe G GU1 (SA) G-1-281023 | SM Energy Company | Briscoe Ranch (Eagleford) | 1 | 29.9K | 1.08M | Jul 2016 – Mar 2022 |
| Vaquillas Ranch L G-4-180533 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 29.8K | 1.43M | Dec 2000 – Oct 2010 |
| Rayzor 1669 G-4-210870 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 29.8K | 1M | Dec 2004 – Oct 2023 |
| Billings B G-4-256253 | Mountain V Texas, LLC | Tiffany (Wilcox Carrizo) | 1 | 29.8K | 2.92M | Mar 2010 – Aug 2026 |
| Vaquillas Ranch Co. Ltd G-4-217449 | Hilcorp Energy Company | Vaquillas Ranch (Lobo Cons.) | 1 | 29.7K | 2.68M | Oct 2005 – Aug 2026 |
| Las Raices Ranch G-4-262452 | XTO Energy Inc. | Gates Ranch (Eagle Ford Shale) | 1 | 29.7K | 859K | Jan 2011 – Aug 2026 |
| Gates "N" TR4 G-4-289021 | Lewis Petro Properties, Inc. | Gold River, North (Olmos) | 1 | 29.7K | 1.96M | Aug 2019 – Aug 2026 |
| Galvan Ranch G-1-263660 | Caturus Energy, LLC | Briscoe Ranch (Eagleford) | 1 | 29.7K | 2.56M | Oct 2011 – Aug 2026 |
| Carr G-4-145298 | Conocophillips Company | Vaquillas Ranch (Lobo Cons.) | 1 | 29.7K | 1.47M | Apr 1993 – May 2007 |
| Billings B G-4-189426 | Mountain V Texas, LLC | Tiffany (Wilcox Carrizo) | 1 | 29.6K | 2.93M | Jun 2002 – Aug 2026 |
| Vaquillas 1646B G-4-138516 | Three-C Oil and Gas | Vaquillas Ranch (Lobo) | 1 | 29.5K | 3.82M | by Jan 1993 – Apr 2023 |
| Neel, George G-4-157600 | OXY USA Inc. | Benavides (Lobo Cons.) | 1 | 29.5K | 2.35M | Jan 1996 – Apr 2015 |
| Vaguillas 1646 G-4-139709 | Three-C Oil and Gas | Vaquillas Ranch (Lobo) | 1 | 29.5K | 1.87M | by Jan 1993 – Apr 2023 |
| Bruni Mineral Trust "B" G-4-247401 | Hilcorp Energy Company | Liz (9200) | 1 | 29.4K | 3.96M | Aug 2008 – Aug 2026 |
| Gates 07-Dr G-1-275450 | Lewis Petro Properties, Inc. | Briscoe Ranch (Eagleford) | 1 | 29.4K | 843K | Jul 2014 – Aug 2026 |
| Dix Ranch C 899 G-4-186222 | Hilcorp Energy Company | Dix Ranch (Lower Wilcox Lobo) | 1 | 29.2K | 2.81M | Oct 2001 – Aug 2026 |