| Jones Trust "21" G-14-191966 | Mewbourne Oil Company only | Canadian, SE (Douglas) | Hemphill | 1 | 758 | 416K | Nov 2002 – Oct 2022 |
| O'Donnell, William S. Trustee O-3-23739 | Etoco Incorporated only | Dyersdale | Harris | 1 | 758 | 23 | Nov 1999 – Sep 2001 |
| Henderson Trust E O-9-14529 | Apache Corporation only | Howards Creek (Canyon) | Crockett | 1 | 757 | 17.2K | Feb 1997 – Sep 2002 |
| West Ranch G-10-239308 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 755 | 495K | Feb 2008 – Jun 2025 |
| West Ranch G-10-234725 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 751 | 105K | Oct 2007 – Aug 2026 |
| Scurlock Trust "A" O-3-23224 | Sonora Petroleum Corp. only | Clinton, N (Yegua 8600) | Harris | 1 | 751 | 6.59K | Mar 1997 – Feb 1998 |
| Seisma-Richardson Trust - A O-13-29028 | Guidance Oil Developers only | Olney, N W. (Miss.) | Archer | 1 | 750 | 0 | Aug 1995 – Nov 1997 |
| Henderson Trust "N" G-9-288365 | Apache Corporation only | Howards Creek (Canyon) | Crockett | 1 | 748 | 9.98K | Feb 2020 – Jun 2026 |
| Barton Trust G-14-175190 | Complete Oil & Gas Services, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 748 | 526K | Oct 1999 – Oct 2008 |
| Ferguson III, S. M. Trust O-13-22624 | Ampak Oil Company only | Searcys (Congl) | Hardeman | 1 | 747 | 21 | Feb 1993 – Nov 1997 |
| Appling Trust G-1-271915 | Lewis Petro Properties, Inc. only | Tri Bar (Olmos) | La Salle | 1 | 746 | 5.17K | Jan 2014 – Aug 2026 |
| Kincaid, A. R. Trust G-9-141691 | Scout Energy Management LLC only | Ozona, East (Spraberry) | Crockett | 1 | 745 | 14.7K | by Jan 1993 – Nov 2001 |
| Lester Trust "2" G-10-176600 | Pioneer Natural Res. USA, Inc. only | Azalea (Devonian) | Midland | 1 | 743 | 2.99K | Jan 2000 – Feb 2004 |
| Kincaid, A. R. Trust 'B' O-9-18791 | Chevron U. S. A. Inc. only | Lin (Wolfcamp) | Crockett | 1 | 740 | 6.91K | Sep 2014 – Oct 2017 |
| Fogle Trust G-6-247037 | Craton Operating LLC only | Carthage (Haynesville Shale) | Harrison | 1 | 739 | 626K | Mar 2009 – Aug 2026 |
| West Ranch G-10-256721 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 737 | 747K | Jul 2008 – Jul 2026 |
| Hill-Fawcett, Randee Trust "F" G-9-213594 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 736 | 123K | Jun 2005 – Jul 2026 |
| Boston Texas Land Trust #8 O-4-12605 | Legacy Corporation, The only | Amore (Vicksburg 6100) | Starr | 1 | 736 | 0 | Apr 1996 – Sep 1996 |
| Yarbrough Trust G-5-158225 | Marathon Oil Company only | Oletha (Travis Peak) | Limestone | 1 | 735 | 257K | Apr 1996 – Jan 2001 |
| McCampbell Trust, et al, "A" O-4-13444 | Cabot Oil & Gas Corporation only | McCampbell (Deep Frio Cons.) | Aransas | 1 | 735 | 10.2K | Apr 2007 – Mar 2008 |
| West Ranch G-10-228823 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 734 | 49.6K | May 2007 – Aug 2026 |
| West Ranch G-10-193337 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 732 | 511K | Jan 2003 – Aug 2026 |
| Morris Trust O-1-12704 | Stratco Operating Co., Inc. only | Pearsall (Austin Chalk) | Frio | 1 | 729 | 33 | by Jan 1993 – Aug 1996 |
| Wardner, G. P., Trustee O-4-4013 | Poor Boy Oilfield Service only | El Tanque (1550) | Starr | 1 | 728 | 37 | by Jan 1993 – Jul 1996 |
| Haynes Mineral Trust G-4-135790 | Hilcorp Energy Company only | Munoz (Lobo) | Zapata | 1 | 727 | 2.39M | Sep 1993 – Dec 2012 |
| West Ranch G-10-248364 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 726 | 1.72M | Jan 2009 – Jul 2026 |
| West Ranch G-10-252122 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 724 | 200K | Jul 2008 – Aug 2026 |
| Phillips-TXL -47- O-10-31671 | Rust Oil Corp. only | Goldsmith (5600) | Ector | 1 | 724 | 11 | by Jan 1993 – Dec 1993 |
| Gage Trustee G-13-121666 | Devon Energy Production Co, L.P. only | Boonsville (Bend Congl., Gas) | Wise | 1 | 723 | 275K | by Jan 1993 – Mar 2007 |
| Buckler Trust Gas Unit 2 G-8-139202 | Dale Operating Company only | Walker-Davis (Duffer Lime) | Stephens | 1 | 721 | 746K | by Jan 1993 – Jan 2025 |
| Henderson Trust "EE" G-9-145362 | Red Stag Operating, LLC only | Ozona (Canyon Sand) | Crockett | 1 | 719 | 687K | by Jan 1993 – Aug 2026 |
| Trusty Oil Unit O-3-23712 | Merit Energy Company only | Village Mills, East (R) | Hardin | 1 | 717 | 15.6K | Aug 1999 – Dec 2000 |
| McGrede -B- O-7-6746 | Aaa Oil Trust only | East Texas | Gregg | 2 | 716 | 399 | by Jan 1993 – Nov 1998 |
| West Ranch G-10-254080 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 716 | 808K | Dec 2008 – Aug 2026 |
| Trusty Oil Unit O-3-18841 | Merit Energy Company only | Village Mills, East (O) | Hardin | 1 | 715 | 340 | by Jan 1993 – Jan 1995 |
| Henderson Trust G-9-137045 | Apache Corporation only | Howards Creek (Penn.) | Crockett | 1 | 714 | 1.76M | by Jan 1993 – Nov 2005 |
| Hewes, Rebecca Wright G-6-207686 | Long Trusts, The only | Oak Hill (Cotton Valley) | Rusk | 1 | 711 | 729K | Jan 2005 – Jul 2026 |
| Longfellow 600 MD G-10-240064 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 708 | 759K | May 2008 – Aug 2026 |
| Rust, Arnold Unit 2 G-6-234837 | Brookston Energy, Inc. only | Oak Hill (Cotton Valley) | Rusk | 1 | 706 | 650K | Oct 2007 – Aug 2026 |
| Schwamp O-1-16359 | Trustar Operating Company Inc. only | Minerva-Rockdale | Milam | 1 | 706 | 0 | Jul 2012 – Aug 2014 |
| North Hayter Trust G-6-204815 | Texian Operating Company, LLC only | Douglass, W. (Travis Peak) | Nacogdoches | 1 | 706 | 954K | Aug 2004 – Aug 2026 |
| West Ranch G-10-197929 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 703 | 857K | Aug 2003 – Aug 2026 |
| Rust Estate 1 G-6-179854 | Brookston Energy, Inc. only | Oak Hill (Cotton Valley) | Rusk | 1 | 702 | 1.26M | Oct 2000 – Aug 2026 |
| McCarthy Family Trust 97 G-3-287119 | C & E Operating, Inc. only | Seabreeze (Marg. 7 FB B) | Chambers | 1 | 702 | 117K | Jan 2019 – Mar 2020 |
| Bruni Mineral Trust "A" G-4-226195 | Hilcorp Energy Company only | B.M.T. (Lobo Cons.) | Webb | 1 | 702 | 1.02M | Feb 2007 – Aug 2026 |
| Longfellow G-10-178717 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 702 | 1.77M | Sep 2000 – Aug 2026 |
| West Ranch G-10-223915 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 701 | 281K | Aug 2005 – Jul 2026 |
| Henderson Trust "EE" G-9-153238 | Red Stag Operating, LLC only | Ozona (Canyon Sand) | Crockett | 1 | 696 | 453K | Jan 1995 – Aug 2026 |
| Haskins Trust G-6-239271 | Iron Jaw Operating LLC only | Gates (Travis Peak) | Nacogdoches | 1 | 695 | 356K | Jul 2008 – Mar 2024 |
| Cole Trust Two G-13-176062 | Encana Oil & Gas(usa) Inc. only | Newark, East (Barnett Shale) | Denton | 1 | 693 | 320K | Jan 2000 – Jun 2005 |