| Rose Children's Trust G-13-231878 | Formentera Operations LLC only | Newark, East (Barnett Shale) | Johnson | 1 | 0 | 1.11M | Aug 2007 – Aug 2026 |
| Bruni Mineral Trust "D" G-4-186646 | Chevron U. S. A. Inc. only | Wildcat | Zapata | 1 | 0 | 0 | — |
| Allison G-10-230833 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 0 | 163K | Jul 2007 – Apr 2024 |
| Longfellow FW G-10-231979 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 0 | 44.4K | Jul 2006 – Mar 2012 |
| Bruni Mineral Trust "D" G-4-185372 | Chevron U. S. A. Inc. only | Wildcat | Zapata | 1 | 0 | 0 | — |
| Ramirez Mineral Trust A G-4-184640 | Houston Exploration Company, The only | Wildcat | Zapata | 1 | 0 | 0 | — |
| Hein Trust B G-4-183472 | Hilcorp Energy Company only | La Perla (Lobo Cons.) | Webb | 1 | 0 | 1.39M | Jun 2001 – Aug 2017 |
| Bruni Mineral Trust G-4-181788 | Calpine Natural Gas L.P. only | Wildcat | Zapata | 1 | 0 | 0 | — |
| Alamo National Bank Trustee G-1-66893 | Vintage Petroleum, Inc. only | Little Alamo (6100) | McMullen | 1 | 0 | 4.33K | by Jan 1993 – Aug 1994 |
| Holbein Trust G-4-177106 | BP America Production Company only | Thompsonville, NE. (12500) | Jim Hogg | 1 | 0 | 0 | — |
| Johnson-Kuehn Trust Unit G-13-230000 | Blackbrush O & G, LLC only | Thalia (Wichita Falls) | Foard | 1 | 0 | 22.1K | May 2007 – Aug 2026 |
| Johnson-Kuehn Trust Unit G-13-229998 | Blackbrush O & G, LLC only | Thalia (Wichita Falls) | Foard | 1 | 0 | 27K | May 2007 – Aug 2026 |
| Mann Trust et Al G-4-176271 | North Central Oil Corp. only | Roleta (Wilcox Consolidated) | Zapata | 1 | 0 | 152K | Feb 2000 – Sep 2001 |
| Cole Trusts 576 B GU G-13-229556 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 0 | 1.51M | May 2007 – Aug 2026 |
| Bruni Mineral Trust G-4-174420 | Chevron U. S. A. Inc. only | Liz (9200) | Webb | 1 | 0 | 116K | Sep 1999 – Aug 2001 |
| Lopez Mineral Trust G-4-172963 | EOG Resources, Inc. only | Dinn, Deep (Wilcox 13600) | Duval | 1 | 0 | 3.14M | May 1999 – Apr 2004 |
| Bruni Mineral Trust G-4-171585 | Chevron U. S. A. Inc. only | Wildcat | Webb | 1 | 0 | 0 | — |
| Cole, M. T. Trust Two "A" G-13-226624 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 0 | 3.32M | Sep 2006 – Aug 2026 |
| Benavides Mineral Trust G-4-169540 | Eagle Capital Partners, LLC only | Lopeno, NE. (Wilcox 8400) | Zapata | 1 | 0 | 261K | Jul 1998 – Jul 2020 |
| Benavides Trust G-4-215155 | Merit Energy Company only | Los Mogotes (Wilcox Cons.) | Zapata | 1 | 0 | 0 | — |
| Tucker, Marie Trust G-13-224516 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Parker | 1 | 0 | 1.02M | Oct 2006 – Aug 2026 |
| Frost Trust G-4-166041 | D-Mil Production, Inc. only | Shockacon (Wilcox 6700) | Webb | 1 | 0 | 1.22K | Feb 1996 – Nov 1999 |
| Cole Trusts 576 "A" G-13-214664 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 0 | 2.49M | Oct 2005 – Aug 2026 |
| Cole Trusts 576 "A" G-13-206998 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 0 | 1.91M | Dec 2004 – Aug 2026 |
| De la Garza Mineral Trust G-4-165624 | Vintage Petroleum, Inc. only | Wildcat | Webb | 1 | 0 | 0 | — |
| Rio Grande Land Trust Unit G-4-165180 | Suemaur Exploration, Inc. only | Wildcat | Hidalgo | 1 | 0 | 0 | — |
| Bruni Mineral Trust 'A' G-4-161869 | Hilcorp Energy Company only | Cerrito Creek (Lobo) | Webb | 1 | 0 | 0 | — |
| Benavides Mineral Trust G-4-159354 | EOG Resources, Inc. only | Lopeno, NE (Wilcox Lower) | Zapata | 1 | 0 | 579K | Jun 1996 – Nov 2007 |
| Longfellow State SS G-10-239290 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 0 | 0 | — |
| Hein Trust G-4-157730 | Conocophillips Company only | Wildcat | Webb | 1 | 0 | 0 | — |
| Benavides Mineral Trust G-4-157632 | EOG Resources, Inc. only | Lopeno, NE. (Wilcox 8700) | Zapata | 1 | 0 | 0 | — |
| Carruth, E.B. Jr. Trust, et Al G-4-157588 | Cordele Development Corporation only | Boyle, E. (3500) | Starr | 1 | 0 | 80.7K | Nov 1994 – Dec 1999 |
| West State G-10-240481 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 0 | 487K | Mar 2008 – Apr 2024 |
| Guerra Mineral Trust "NCT II" G-4-157552 | Hughes, Dan A. Company only | Guerra, E. (Hockley) | Starr | 1 | 0 | 0 | — |
| Cole Trust Four G-13-197632 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 0 | 1.64M | Jul 2003 – Aug 2026 |
| West Ranch South G-10-242119 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 0 | 26.1K | Oct 2007 – Jun 2021 |
| Benavides Mineral Trust G-4-157419 | Vast Oil TX Operating LLC only | Wildcat | Zapata | 1 | 0 | 0 | — |
| Benavides Mineral Trust G-4-156852 | Enron Oil & Gas Company only | Lopeno, NE. (Wilcox 7500) | Zapata | 1 | 0 | 0 | — |
| Sharp, D. Trustee-Gerdes G-4-156418 | NU-San Energy only | Ewing (1500) | San Patricio | 1 | 0 | 1.25K | Jul 1995 – Sep 1995 |
| Bruni Mineral Trust G-4-156077 | Chevron U. S. A. Inc. only | Liz (9200) | Webb | 1 | 0 | 119K | Nov 1995 – Jun 1999 |
| Boston Texas Land Trust # 6 G-4-155853 | Legacy Corporation, The only | Amore (Vicksburg 6200) | Hidalgo | 1 | 0 | 12.2K | Sep 1995 – Jan 1996 |
| Marrs McLean Trust -C- G-4-155702 | Vastar Resources, Inc. only | Thompsonville, NE. (13700) | Jim Hogg | 1 | 0 | 7.02K | Apr 1995 – May 1995 |
| Lopez "A" G-4-155450 | Gonzalez, Elia G. Mineral Trust only | Cole (1700) | Duval | 1 | 0 | 0 | — |
| Boggess Trust G-13-193955 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Tarrant | 1 | 0 | 1.16M | Jan 2003 – Aug 2018 |
| De la Garza Mineral Trust G-4-155150 | Petro-Smith Operating LLC only | Picoso, East (Consolidated) | Webb | 1 | 0 | 0 | — |
| West State G-10-244827 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 0 | 961K | May 2008 – Apr 2010 |
| Longfellow R3 G-10-197115 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 0 | 0 | — |
| Boston Texas Land Trust #2 G-4-154591 | Legacy Corporation, The only | Amore (Vicksburg 5950) | Hidalgo | 1 | 0 | 12.2K | May 1995 – Oct 1995 |
| West Ranch G-10-244931 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 0 | 59.7K | Aug 2008 – Jan 2025 |
| Johnson-Kuehn Trust Unit G-13-172759 | Blackbrush O & G, LLC only | Thalia (Wichita Falls) | Foard | 1 | 0 | 208K | Jan 1999 – Aug 2026 |