| Hill-Fawcett, Randee Trust "D" G-9-106539 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 9 | 136K | by Jan 1993 – Jul 2026 |
| West Ranch G-10-189601 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 9 | 2.73M | May 2002 – Aug 2026 |
| West Ranch G-10-248621 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 9 | 761K | Jan 2009 – Apr 2024 |
| West Ranch G-10-240633 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 9 | 443K | Aug 2008 – Apr 2024 |
| Hein Trust G-4-177444 | Hilcorp Energy Company only | La Perla (Lobo Cons.) | Webb | 1 | 9 | 3.36M | May 2000 – Aug 2026 |
| Fossil Wildman Trust G-5-222705 | Contrast Energy, LLC only | Hilltop Resort (Bossier) | Leon | 1 | 9 | 837K | Oct 2006 – Jun 2025 |
| Longfellow G-10-241696 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 9 | 156K | Jul 2008 – Mar 2026 |
| Fawcett, Randee Trust -C- G-9-58198 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 9 | 97.9K | by Jan 1993 – Jul 2026 |
| Cole, M. T. Trust G-13-63276 | Tejas Western Corp. only | Gas Finders (Congl.) | Denton | 1 | 9 | 266K | by Jan 1993 – Sep 2010 |
| Iowa Realty Trust O-10-39078 | Trilogy Operating, Inc. only | Lehn-Apco, S. (Wichita-Albany) | Pecos | 1 | 9 | 4 | Jul 2008 – Jan 2009 |
| West Ranch G-10-260175 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 9 | 1.43M | Aug 2010 – Mar 2024 |
| Fawcett, Randee Trust "D" G-9-68247 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 8 | 131K | by Jan 1993 – Jul 2026 |
| West Ranch South G-10-219195 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 8 | 857K | Jun 2006 – Apr 2024 |
| Longfellow State 18 G-10-247961 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 8 | 103K | Oct 2008 – Jan 2026 |
| Cole Trust G-13-181740 | Best Petroleum Explorations,inc. only | Newark, East (Barnett Shale) | Denton | 1 | 8 | 960K | Mar 2001 – Sep 2020 |
| Haynes Mineral Trust G-4-166168 | Hilcorp Energy Company only | Haynes (Middle Wilcox Cons.) | Zapata | 1 | 8 | 638K | Sep 1997 – Aug 2026 |
| Allison G-10-258536 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 8 | 554K | Jul 2010 – Oct 2022 |
| Benavides Trust G-4-165751 | Sanchez Oil & Gas Corporation only | Roleta (Wilcox Consolidated) | Zapata | 1 | 8 | 90.9K | Nov 1997 – Sep 1998 |
| West Ranch G-10-240934 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 8 | 884K | Dec 2007 – Apr 2024 |
| Allison G-10-259467 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 8 | 897K | Sep 2010 – Apr 2024 |
| Brust Unit G-3-155760 | Ogden Resources Corporation only | Giddings (Austin Chalk, Gas) | Washington | 1 | 8 | 1.25M | Jun 1995 – Aug 2017 |
| West Ranch G-10-252995 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 8 | 704K | Jun 2009 – Apr 2024 |
| Merner Trust G-2-170233 | Westport Oil and Gas Company, LP only | Fannin, North (3750) | Goliad | 1 | 8 | 472K | Jul 1998 – May 2001 |
| Haynes Mineral Trust G-4-135442 | Hilcorp Energy Company only | Haynes (Middle Wilcox Cons.) | Zapata | 1 | 8 | 7 | Sep 1993 – Feb 2008 |
| Longfellow 600 G-10-248071 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 8 | 146K | Sep 2008 – Aug 2026 |
| West Ranch G-10-258183 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 8 | 376K | Jun 2010 – Apr 2024 |
| Stormont G-2-147657 | Hunt, Wm. Herbert, Trust Est. only | Long Branch (Catahoula) | Jackson | 1 | 8 | 185K | Sep 1993 – Dec 1996 |
| Hein Mineral Trust B G-4-180276 | Hilcorp Energy Company only | La Perla (Lobo Cons.) | Webb | 1 | 7 | 2.59M | Nov 2000 – Aug 2026 |
| Hill, Katherine Trust G-5-137764 | Cobra Oil & Gas Corporation only | Thomas Lake (Cotton Valley) | Henderson | 1 | 7 | 45.9K | by Jan 1993 – Oct 1994 |
| Richardson Trust "A" O-8-23023 | Romac Oil Company, Inc. only | Curtis (Miss) | Throckmorton | 1 | 7 | 4 | Apr 1993 – Dec 1993 |
| Fawcett, Randee Trust "C" G-9-210850 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 7 | 90.1K | Feb 2005 – Jul 2026 |
| Abraham, James Trust G-14-175896 | Mewbourne Oil Company only | Canadian, West (Morrow Lower) | Hemphill | 1 | 7 | 160K | Jan 2000 – Nov 2000 |
| Carter Family Trust G-13-181205 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 7 | 346K | Jan 2001 – Jul 2022 |
| Hein Trust B G-4-183437 | Hilcorp Energy Company only | La Perla (Lobo Cons.) | Webb | 1 | 6 | 2.85M | Apr 2001 – Aug 2026 |
| Bruni Mineral Trust A-A G-4-69973 | Arete Operating Company II, LLC only | La Perla (Lobo Cons.) | Zapata | 1 | 6 | 301K | by Jan 1993 – Aug 2026 |
| Maxwell Trust G-8-151234 | Upham Oil & Gas Company only | Maxwell Trust (Congl.) | Palo Pinto | 1 | 6 | 1.45K | Jul 1994 – Jun 2010 |
| Stovall, Guy F. Trust G-3-149218 | Hughes, Dan A. Company only | Chitland Creek (Frio 4550) | Wharton | 1 | 6 | 2.68K | Apr 1994 – May 1994 |
| Randee Fawcett Trust G-9-211430 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 6 | 97.5K | Mar 2005 – Jul 2026 |
| West Ranch G-10-248865 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 6 | 145K | Jan 2009 – Apr 2024 |
| West State G-10-252862 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 6 | 1.84M | Sep 2008 – Mar 2022 |
| Allison G-10-252481 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 6 | 535K | Aug 2008 – Jul 2022 |
| Fawcett, Randee Trust C G-9-215792 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 6 | 75.2K | Sep 2005 – Jul 2026 |
| Allison G-10-203689 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 6 | 266K | May 2004 – Apr 2024 |
| Lopez, Lauro Mineral Trust G-4-179104 | Hilcorp Energy Company only | EN Seguido (Wilcox) | Zapata | 1 | 6 | 1.98M | Aug 2000 – Nov 2017 |
| West Ranch G-10-216459 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 6 | 2.86M | Apr 2006 – Mar 2024 |
| Felix Simek Family Trust A73 G-2-227968 | Hunt Oil Company only | Kasper, S. (Knave) | De Witt | 1 | 6 | 82.9K | Oct 2006 – Jun 2008 |
| Cole, M. T. Trust G-13-58566 | Tejas Western Corp. only | Gas Finders (Congl.) | Denton | 1 | 6 | 62.3K | by Jan 1993 – Sep 2010 |
| Mercer Trust G-4-167073 | Dynamic Production, Inc. only | Parks-Farm (4025) | Cameron | 1 | 6 | 101K | Jan 1998 – May 1999 |
| Yarbrough Trust G-5-184146 | Lodestone Operating, Inc. only | Oletha (Travis Peak) | Limestone | 1 | 6 | 150K | Jun 2001 – May 2024 |
| Mitchell State 10 G-9-243749 | Piedra Operating, LLC only | Pakenham (Thrusted) | Terrell | 1 | 6 | 7 | May 2009 – May 2009 |