| Vollmert Trust G-14-158646 | BRG Lone Star Ltd. only | Red Deer Creek (Granite Wash) | Roberts | 1 | 2.8K | 145K | Jun 1996 – Jun 2015 |
| Cole Trust G-13-280026 | FX Energy Operating, LLC only | KRS (Marble Falls) | Jack | 1 | 2.79K | 121K | Feb 2016 – May 2023 |
| Kincaid, A.R. Trust "D" G-9-81004 | Scout Energy Management LLC only | Davidson Ranch (Penn. 7890) | Crockett | 1 | 2.78K | 544K | by Jan 1993 – Dec 1999 |
| Miller Trust G-6-281207 | Sydri Operating, LLC only | Waterman (Travis Peak) | Nacogdoches | 1 | 2.78K | 906K | Jul 2016 – Dec 2025 |
| Kincaid, A. R. Trust G-9-19112 | Texaco E & P Inc. only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 2.77K | 152K | by Jan 1993 – Mar 2002 |
| Gex, Lutie W. Trust G-14-145231 | Amoco Production Company only | Mammoth Creek, North (Cleveland) | Lipscomb | 1 | 2.75K | 56K | Apr 1993 – Jun 1999 |
| Martin Trust C G-14-172302 | United Oil & Shale LLC only | Clark Martin (Granite Wash) | Roberts | 1 | 2.75K | 170K | Jan 1999 – Jul 2013 |
| Frost Trust 9 G-4-182682 | Hilcorp Energy Company only | Vaquillas Ranch (Lobo Cons.) | Webb | 1 | 2.74K | 2.49M | Apr 2001 – Aug 2026 |
| St. Andrew G-3-174467 | Ventex Operating Corp. only | Rusty (14,600) | Matagorda | 1 | 2.74K | 166K | Mar 1999 – Jul 2005 |
| Stewart Trust State G-4-270344 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 2.73K | 2.16M | Mar 2013 – Aug 2026 |
| Begert Trust 32 G-14-253338 | Bce-Mach II LLC only | Begert (10,200) | Hemphill | 1 | 2.73K | 379K | Mar 2009 – Aug 2020 |
| Sabine Royalty Trust G-6-201706 | Eqv Operating LLC only | Carthage (Cotton Valley) | Panola | 1 | 2.7K | 1.03M | Oct 2003 – Aug 2026 |
| West Ranch G-10-175161 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 2.67K | 2.3M | Nov 1999 – Aug 2026 |
| Rust, Arnold Unit 1 G-6-135578 | Brookston Energy, Inc. only | Oak Hill (Cotton Valley) | Rusk | 1 | 2.65K | 529K | by Jan 1993 – Aug 2017 |
| Longfellow G-10-185579 | Occidental W TX Overthrust, Inc. only | Pinon (Overthrust) | Pecos | 1 | 2.64K | 36.3K | Sep 2001 – Apr 2008 |
| Jones Trust -24- G-14-119365 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 2.61K | 730K | by Jan 1993 – Oct 2013 |
| Bruni Mineral Trust "B" G-4-213305 | Hilcorp Energy Company only | Liz (9200) | Webb | 1 | 2.6K | 1.51M | Mar 2005 – Jul 2026 |
| Stewart Trust G-4-270000 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 2.59K | 2.38M | Jul 2012 – Aug 2026 |
| Semmes Trust, et al "906" G-4-187213 | Conoco Inc. only | Rincon (90 Vicksburg 906-4) | Starr | 1 | 2.58K | 20.3K | Jul 2001 – Aug 2001 |
| Bruni Mineral Trust G-4-74290 | Hilcorp Energy Company only | Laredo (Lobo) | Webb | 1 | 2.58K | 2.66M | by Jan 1993 – Aug 2026 |
| Brooks Trust NO.2 G.U.#2 G-2-181122 | Dirks Petroleum Company only | Cadiz, North (Slick-Wilcox) | Bee | 1 | 2.58K | 223K | Sep 2000 – Feb 2008 |
| Kincaid, A. R. Trust 'D' G-9-180096 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 2.57K | 158K | Oct 2000 – Aug 2026 |
| Winterbotham, J. M. Trust G-9-37812 | Hilcorp Energy Company only | Dove Creek (Canyon -B-) | Irion | 1 | 2.54K | 211K | by Jan 1993 – Aug 2026 |
| Jones Trust G-14-251079 | FX Energy Operating, LLC only | Higgins, West (Atoka) | Lipscomb | 1 | 2.52K | 444K | Feb 2009 – Aug 2026 |
| West Ranch G-10-257332 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 2.52K | 1.51M | Dec 2009 – Feb 2025 |
| Frost Trust 29 G-4-196374 | EOG Resources, Inc. only | Tiffany (Wilcox Carrizo) | Webb | 1 | 2.51K | 185K | Jul 2003 – Jan 2010 |
| Marshall, Stanley Trustee "A" G-4-148840 | Varas Energy Operating Company, only | Tom Shearman (Halbouty) | Webb | 1 | 2.51K | 2.26M | Mar 1994 – Oct 2014 |
| Bruni Mineral Trust "C" G-4-214166 | Hilcorp Energy Company only | Bashara-Hereford (7300) | Webb | 1 | 2.49K | 927K | Aug 2005 – Aug 2026 |
| West Ranch G-10-203343 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 2.49K | 4.78M | May 2004 – Apr 2024 |
| Bruni Mineral Trust G-4-81205 | Hilcorp Energy Company only | Laredo (Lobo) | Webb | 1 | 2.49K | 4.58M | by Jan 1993 – Aug 2026 |
| Muckelroy G-6-110392 | Long Trusts, The only | Toolan (Travis Peak) | Nacogdoches | 1 | 2.48K | 340K | by Jan 1993 – Feb 2021 |
| Kincaid, A. R., Trust -D- G-9-47761 | Scout Energy Management LLC only | Davidson Ranch (Penn. 7890) | Crockett | 1 | 2.47K | 535K | by Jan 1993 – Oct 1997 |
| Mitchell 31 G-9-161943 | Hilcorp Energy Company only | Pakenham (Thrusted) | Terrell | 1 | 2.47K | 347K | Jun 1997 – Jan 2005 |
| West Ranch G-10-189231 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 2.45K | 5.35M | May 2002 – Feb 2024 |
| Smith Family Trust Gas Unit G-6-227007 | Weatherly Oil & Gas, LLC only | Naconiche Creek (Rod.-TP Cons.) | Rusk | 1 | 2.45K | 35.7K | Mar 2007 – Nov 2017 |
| Jones Trust 359 G-14-252511 | Highmark Energy Operating, LLC only | Lipscomb (Atoka) | Lipscomb | 1 | 2.44K | 1.06M | Jul 2009 – Aug 2026 |
| Kincaid, A. R. Trust "D" G-9-48609 | Scout Energy Management LLC only | Davidson Ranch (Penn. 7890) | Crockett | 1 | 2.44K | 370K | by Jan 1993 – Sep 1997 |
| Begert Trust 31 G-14-244167 | Bce-Mach II LLC only | Begert (10,200) | Hemphill | 1 | 2.43K | 394K | Oct 2008 – Aug 2026 |
| Stewart Trust G-4-269757 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 2.4K | 1.98M | Mar 2013 – Aug 2026 |
| Citizens National Bank Trustee A G-14-171821 | 4P Energy Texas, LLC only | Coburn, SW (Tonkaw) | Lipscomb | 1 | 2.4K | 49.1K | Feb 1999 – Oct 2008 |
| Cole Trust Stony G-13-188432 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 2.4K | 285K | Mar 2002 – Aug 2026 |
| Henderson Trust G-9-223112 | Apache Corporation only | Howards Creek (Canyon) | Crockett | 1 | 2.39K | 829K | Aug 2006 – Aug 2026 |
| Bruni Mineral Trust G-4-171237 | Hilcorp Energy Company only | Liz (9200) | Webb | 1 | 2.37K | 3.75M | Dec 1998 – Aug 2026 |
| Dickinson, Charles B. Trust G-4-112746 | Valence Operating Company only | Picoso (Carrizo Spike 8070) | Webb | 1 | 2.37K | 709K | by Jan 1993 – Jan 2015 |
| Hutchins-Peareson Trust G-3-137964 | Royal Oil & Gas Corp. only | Avo Grande (Yegua 6800) | Wharton | 1 | 2.34K | 298K | by Jan 1993 – Jan 1994 |
| Flowers Trust "B" G-14-171131 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 2.33K | 795K | Jun 1998 – May 2007 |
| Dunagan G-3-157023 | Hunt, Wm. Herbert, Trust Est. only | Crooked Bayou (12,000 Yegua) | Liberty | 1 | 2.33K | 7.49K | Oct 1995 – Nov 1995 |
| Bruni Mineral Trust "A" G-4-82524 | Hilcorp Energy Company only | Juanita (Lobo) | Webb | 1 | 2.33K | 333K | by Jan 1993 – Aug 2024 |
| West Ranch G-10-239094 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 2.33K | 531K | Nov 2007 – Mar 2026 |
| West Ranch G-10-237927 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 2.32K | 21.5K | Nov 2007 – Apr 2023 |