| Hein Trust C G-4-178479 | Hilcorp Energy Company only | La Perla (Lobo Cons.) | Webb | 1 | 3 | 702K | Aug 2000 – Jul 2026 |
| Fawcett, Randee Trust -C- G-9-66800 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 3 | 85K | by Jan 1993 – Jul 2026 |
| West Ranch G-10-226697 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 3 | 385K | Nov 2006 – Apr 2024 |
| Rust Estate G-3-184616 | Mountain V Texas, LLC only | Ciervo Grande (Middle Wilcox) | Wharton | 1 | 3 | 557K | Jul 2001 – Jun 2026 |
| Frost National Bank & Trust G-4-95442 | Bowman, Fred Inc. only | Rancho Solo (Wilcox) | Duval | 1 | 3 | 2.24K | by Jan 1993 – Jan 1993 |
| Young Trust Unit G-14-158337 | Unit Petroleum Company only | Allison Parks (Morrow, Up.) | Hemphill | 1 | 3 | 330K | Mar 1996 – Apr 2003 |
| Kasal Trust Unit G-13-246134 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Johnson | 1 | 3 | 1.36M | May 2008 – Aug 2026 |
| Longfellow XX G-10-182632 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 3 | 73.4K | Jul 2001 – Apr 2024 |
| Hein Trust C G-4-177977 | Hilcorp Energy Company only | La Perla (Lobo Cons.) | Webb | 1 | 3 | 358K | Jun 2000 – May 2026 |
| Allison G-10-259070 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 3 | 271K | Jun 2010 – Sep 2023 |
| Haynes Mineral Trust G-4-254608 | Hilcorp Energy Company only | Haynes (Middle Wilcox Cons.) | Zapata | 1 | 3 | 411K | Jan 2010 – Aug 2026 |
| Bruni Mineral Trust A-A G-4-142469 | Arete Operating Company II, LLC only | La Perla (Lobo Cons.) | Zapata | 1 | 3 | 1.27M | by Jan 1993 – Aug 2026 |
| West Ranch G-10-249997 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 3 | 911K | Jan 2009 – Apr 2024 |
| Hill-Aldwell, Winnie R. Trust E G-9-151198 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 3 | 355K | May 1994 – Jul 2026 |
| Halamicek, J. A. Trust G-3-146101 | Conoco Inc. only | Alwan (Frio 4360) | Wharton | 1 | 3 | 143K | Jun 1993 – Dec 1993 |
| Hein Trust G-4-188006 | Hilcorp Energy Company only | La Perla (Lobo Cons.) | Webb | 1 | 2 | 613K | Jan 2002 – Aug 2026 |
| Rowan Estate Trust G-13-174125 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 2 | 2.17M | Jul 1999 – Aug 2026 |
| Lopez Mineral Trust G-4-265738 | Paleo Oil Company LLC only | Dinn, Deep (11200) | Duval | 1 | 2 | 30K | Jan 2013 – Oct 2018 |
| Boggess Trust G-13-241119 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Tarrant | 1 | 2 | 3.67M | Aug 2008 – Aug 2026 |
| Haynes Mineral Trust G-4-126243 | Hilcorp Energy Company only | Haynes (Middle Wilcox Cons.) | Zapata | 1 | 2 | 151K | by Jan 1993 – Mar 1995 |
| Poth Family Trust G-5-158520 | Diversified Production LLC only | Pearwood (Cotton Valley Lime) | Leon | 1 | 2 | 75.8M | Feb 1996 – Aug 2026 |
| Hein Trust B G-4-289840 | Hilcorp Energy Company only | Bruni Ranch (Wilcox 7250) | Webb | 1 | 2 | 91.5K | Sep 2017 – Aug 2026 |
| Johnson Trusts Etal O-3-26421 | Etx Energy, LLC only | Madisonville, W. (Woodbine -A-) | Grimes | 2 | 2 | 0 | Apr 2013 – Apr 2013 |
| Allison 4 G-10-238765 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 2 | 1.2M | Jan 2008 – Apr 2024 |
| Hill-Fawcett, Randee Trust "A" G-9-213837 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 2 | 361K | Jul 2005 – Jul 2026 |
| West Ranch G-10-239372 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 2 | 83K | Apr 2008 – Jan 2026 |
| Longfellow State 2 G-10-183908 | Occidental W TX Overthrust, Inc. only | Pinon (Overthrust) | Pecos | 1 | 2 | 175K | Jul 2001 – May 2019 |
| Haynes Mineral Trust G-4-228710 | Hilcorp Energy Company only | Munoz (Lobo) | Zapata | 1 | 2 | 323K | Jun 2007 – May 2026 |
| Kasal Trust Unit G-13-231343 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Johnson | 1 | 2 | 2.65M | May 2007 – Aug 2026 |
| West Ranch G-10-248289 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 2 | 417K | Oct 2008 – Apr 2024 |
| Riley Trust G-5-165226 | Diversified Production LLC only | Bohlwhite (Cotton Valley Lime) | Robertson | 1 | 2 | 2.87M | Feb 1997 – Jan 2017 |
| Henderson Trust NN G-9-153691 | Red Stag Operating, LLC only | Ozona, SW. (Strawn) | Crockett | 1 | 2 | 16.8K | Mar 1995 – Jul 2014 |
| Henderson Trust "X" G-9-153237 | Bob Hughes Oil Company, LLC only | Ozona, SW. (Strawn) | Crockett | 1 | 2 | 268K | Jan 1995 – Jul 2026 |
| Longfellow G-10-188926 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 2 | 734K | Mar 2002 – Aug 2026 |
| Bego Trust Gas Unit 1 G-2-245945 | Enduring Resources, LLC only | Kawitt (Edwards) | Karnes | 1 | 2 | 6.21K | Sep 2008 – Mar 2009 |
| Hill Aldwell, Winnie R. Trust G G-9-151451 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 2 | 1.77M | Mar 1994 – Jul 2026 |
| Thagard, George F., et Al G-10-38814 | Thagard Trust only | Coyanosa (Ellenburger) | Pecos | 1 | 2 | 4.14M | by Jan 1993 – Mar 2004 |
| Aldwell, Winnie R. Trust -C- G-9-65875 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 2 | 476K | by Jan 1993 – Jul 2026 |
| Bruni Mineral Trust A-B G-4-134065 | Arete Operating Company, LLC only | La Perla (Lobo Cons.) | Zapata | 1 | 2 | 2.41M | by Jan 1993 – Feb 2026 |
| Allison Ranch G-10-259480 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 2 | 216K | Oct 2010 – Apr 2024 |
| Kasal Trust Unit G-13-253681 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Johnson | 1 | 2 | 1.96M | Jan 2010 – Aug 2026 |
| Hein Trust G-4-181823 | Hilcorp Energy Company only | La Perla (Lobo Cons.) | Webb | 1 | 2 | 544K | Feb 2001 – Jul 2022 |
| West Ranch G-10-254693 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 2 | 2.18M | Aug 2009 – Apr 2024 |
| West Ranch South G-10-252748 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 2 | 263K | Jul 2009 – Apr 2024 |
| West Ranch G-10-251351 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 2 | 376K | Oct 2008 – Apr 2024 |
| Bruni Mineral Trust A-B G-4-77960 | Arete Operating Company II, LLC only | La Perla (Lobo Cons.) | Zapata | 1 | 1 | 257K | by Jan 1993 – May 2026 |
| Cole Trust "A" G-13-185134 | Bedrock Production, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 1 | 2.36M | Sep 2001 – Aug 2020 |
| Hein Trust G-4-187488 | Hilcorp Energy Company only | La Perla (Lobo Cons.) | Webb | 1 | 1 | 328K | Jan 2002 – Aug 2025 |
| Cole, M. T. Trust G-13-61692 | Tejas Western Corp. only | Gas Finders (Congl.) | Denton | 1 | 1 | 35.9K | by Jan 1993 – May 2011 |
| Brooks Trust G-2-251222 | Dirks Petroleum Company only | Cadiz (Queen City) | Bee | 1 | 1 | 1.17K | Aug 2010 – Dec 2010 |