| Lutheran Church GU G-6-222049 | Long Trusts, The only | Beckville (Cotton Valley) | Panola | 1 | 5.19K | 1.51M | Jul 2006 – Jul 2026 |
| Boston Texas Land & Trust G-4-196729 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 5.18K | 208K | Sep 2003 – Mar 2012 |
| West Ranch G-10-234605 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 5.17K | 1.03M | Oct 2007 – Aug 2026 |
| Wylie Trust Burks G-6-288896 | Buckhorn Operating LLC only | Brachfield, S.E. (Cotton Valley) | Rusk | 1 | 5.16K | 1.75M | Nov 2019 – Aug 2026 |
| West Ranch G-10-228887 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 5.15K | 554K | Jun 2007 – Aug 2026 |
| Kincaid, A.R. Trust -C- G-9-136767 | Scout Energy Management LLC only | Davidson Ranch (Penn. 7890) | Crockett | 1 | 5.15K | 763K | by Jan 1993 – Feb 1998 |
| Bailey, James Trustee G-3-127748 | Shana Petroleum Company only | Paul (LW-20) | Colorado | 1 | 5.13K | 127K | by Jan 1993 – Apr 1998 |
| Yarbrough Trust G-5-148939 | Lodestone Operating, Inc. only | Oletha (Travis Peak) | Limestone | 1 | 5.11K | 3.51M | Feb 1994 – Aug 2026 |
| West Ranch G-10-248293 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 5.09K | 1.89M | Oct 2008 – Aug 2026 |
| Bruni Mineral Trust A' G-4-143314 | Hilcorp Energy Company only | Cerrito Creek (Lobo 1) | Webb | 1 | 5.07K | 1.2M | by Jan 1993 – Aug 2026 |
| Walker-Buckler Trust (TR.15) G-8-179292 | Keating Energy, Inc. only | Gem, Northeast (Caddo Lime) | Shackelford | 1 | 5.06K | 205K | Sep 2000 – Aug 2026 |
| Kincaid, A. R. Trust "B" G-9-147346 | Chevron U. S. A. Inc. only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 5.04K | 452K | Nov 1993 – Mar 2008 |
| Longfellow 600 MD G-10-236238 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 5.03K | 3.95M | Nov 2007 – Jul 2026 |
| Jones Trust -25- G-14-190779 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 5.02K | 436K | Jul 2002 – May 2015 |
| Smith Family Trust Gas Unit G-6-221936 | Weatherly Oil & Gas, LLC only | Naconiche Creek (Rod.-TP Cons.) | Nacogdoches | 1 | 5.01K | 537K | Jul 2006 – Mar 2013 |
| Bruni Mineral Trust "C" G-4-260747 | Hilcorp Energy Company only | Bashara-Hereford (7300) | Webb | 1 | 5.01K | 879K | Sep 2010 – Aug 2026 |
| Begert Trust 43 G-14-246512 | Bce-Mach II LLC only | Begert (10,200) | Hemphill | 1 | 5K | 455K | Nov 2008 – Aug 2026 |
| Cole Trust Stony G-13-184923 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 4.99K | 295K | Oct 2001 – Aug 2026 |
| Baker Trust G-2-150333 | Rutherford Oil Corporation only | Brazil (1ST Tom Lyne) | Live Oak | 1 | 4.98K | 5.55M | Sep 1994 – Jul 2004 |
| Begert Trust 6 G-14-259763 | Bce-Mach II LLC only | Begert (10,200) | Hemphill | 1 | 4.96K | 551K | Oct 2010 – Aug 2026 |
| Kincaid, A. R. Trust "B" G-9-168300 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 4.96K | 486K | Feb 1998 – Aug 2026 |
| Kincaid, A. R. Trust "B" G-9-49649 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 4.95K | 272K | by Jan 1993 – Aug 2026 |
| O'Loughlin Sr., C.C. Trust G-14-157897 | Mewbourne Oil Company only | Twin (Des Moines) | Hansford | 1 | 4.95K | 268K | Apr 1996 – Jul 2026 |
| Vollmert Trust G-14-251461 | Bracken Operating, L.L.C. only | Mendota, NW. (Granite Wash) | Roberts | 1 | 4.92K | 322K | Sep 2008 – Feb 2016 |
| West Ranch G-10-245315 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 4.9K | 661K | Sep 2008 – Apr 2024 |
| Bruni Minerals Trust "D" G-4-176492 | Killam Oil Co., Ltd. only | B.M.T. (Lobo Cons.) | Webb | 1 | 4.85K | 1.28M | Dec 1999 – Aug 2026 |
| Kincaid, A. R. Trust 'C' G-9-169061 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 4.85K | 415K | May 1998 – Aug 2026 |
| Rhodes Trust G-2-168731 | P1 Energy, LLC only | Kawitt (Edwards) | Karnes | 1 | 4.85K | 1.27M | Mar 1998 – Jul 2025 |
| Doyle Family Trust G-13-187366 | Gardner Production, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 4.85K | 271K | Jan 2002 – Apr 2023 |
| Henderson Trust "E" G-9-109167 | Exxon Corp. only | Howards Creek (Canyon) | Crockett | 1 | 4.83K | 137K | by Jan 1993 – Jan 1997 |
| Begert Trust 4 G-14-236905 | Bce-Mach II LLC only | Begert (10,200) | Hemphill | 1 | 4.83K | 365K | Feb 2008 – Aug 2026 |
| Lancaster, Maurine G-6-117823 | Long Trusts, The only | Longview, North (Cotton Valley) | Upshur | 1 | 4.81K | 424K | Feb 1993 – Jan 2026 |
| North Hayter Trust G-6-207688 | Texian Operating Company, LLC only | Douglass, W. (Travis Peak) | Nacogdoches | 1 | 4.81K | 801K | Nov 2004 – Dec 2025 |
| Begert Trust 43 G-14-250995 | Bce-Mach II LLC only | Begert (10,200) | Hemphill | 1 | 4.81K | 498K | Apr 2009 – Aug 2026 |
| University #36-2 G-9-162324 | White Rock Oil & Gas, LLC only | Pakenham (Thrusted) | Terrell | 1 | 4.79K | 606K | Jan 1997 – Aug 2026 |
| Guaranty Title & Trust G-4-166764 | Royal Production Company, Inc. only | Corpus Christi, West ( 8630) | Nueces | 1 | 4.78K | 88.2K | Jan 1998 – May 1999 |
| Kincaid, A. R. Trust G-9-143348 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 4.78K | 532K | by Jan 1993 – Jun 2005 |
| West Ranch G-10-260463 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 4.76K | 356K | Sep 2010 – Oct 2024 |
| Kincaid, A. R. Trust "B" G-9-118230 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 4.75K | 341K | by Jan 1993 – Aug 2026 |
| Bruni Mineral Trust "C" G-4-246610 | Hilcorp Energy Company only | Bashara-Hereford | Webb | 1 | 4.74K | 679K | Aug 2007 – Aug 2026 |
| Boston Texas Land & Trust G-4-286365 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 4.74K | 684K | Apr 2019 – Aug 2026 |
| Benavides Mineral Trust G-4-147856 | EOG Resources, Inc. only | Lopeno, NE. (7350) | Zapata | 1 | 4.66K | 898K | Dec 1993 – Jan 1999 |
| Kincaid, A. R. Trust "B" G-9-165454 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 4.62K | 432K | Sep 1997 – Aug 2026 |
| Semmes Trust, et. al. "906" G-4-186998 | Forest Oil Corporation only | Rincon (Vicksburg Cons.) | Starr | 1 | 4.58K | 622K | Oct 2001 – Apr 2003 |
| Boston Texas Land & Trust G-4-127829 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 4.55K | 733K | Oct 1994 – May 2019 |
| Martin Trust B2093 G-14-167893 | Range Production Company only | Clark Martin (Granite Wash) | Roberts | 1 | 4.53K | 662K | Feb 1998 – Jan 2012 |
| Mitchell 9 G-9-171913 | Hilcorp Energy Company only | Pakenham (Thrusted) | Terrell | 1 | 4.52K | 1.18M | Nov 1998 – Aug 2026 |
| Merritt, Thos. C. Trust Gas Unit G-6-142318 | Chisos, Ltd. only | Oak Hill (Cotton Valley) | Rusk | 1 | 4.52K | 1.1M | by Jan 1993 – Jul 2019 |
| Merritt, Thos. C. Trust Gas Unit G-6-144835 | Chisos, Ltd. only | Oak Hill (Cotton Valley) | Rusk | 1 | 4.51K | 1.45M | Feb 1993 – Jul 2020 |
| Iowa Realty Trust 125 "A" G-10-57818 | Last Mile Production, LLC only | Owego (Tansill) | Pecos | 1 | 4.51K | 36.4K | Sep 1993 – Jul 2024 |