| West Ranch G-10-224600 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 793 | 999K | Nov 2006 – Jul 2026 |
| Goss Trust G-3-192178 | Kerr-McGee Oil & Gas Onshore LP only | Iola (Georgetown) | Brazos | 1 | 786 | 14.9K | Oct 2002 – Feb 2005 |
| Longfellow G-10-188927 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 776 | 931K | Apr 2002 – Aug 2026 |
| Ellis, Carl Trustee -A- G-14-153876 | Latigo Petroleum, LLC only | Pan Petro (Cleveland) | Ochiltree | 1 | 775 | 735K | Mar 1995 – Aug 2026 |
| Flowers Trust -A- G-14-227990 | Bce-Mach III LLC only | Mendota, NW. (Morrow, Upper) | Roberts | 1 | 770 | 1.94M | Mar 2007 – Mar 2025 |
| North Hayter Trust G-6-197898 | Texian Operating Company, LLC only | Douglass, W. (Travis Peak) | Nacogdoches | 1 | 769 | 419K | Sep 2003 – Aug 2026 |
| West Ranch G-10-252994 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 769 | 1.01M | May 2009 – Apr 2024 |
| North Hayter Trust G-6-213958 | Texian Operating Company, LLC only | Douglass, W. (Travis Peak) | Nacogdoches | 1 | 763 | 777K | May 2005 – Aug 2026 |
| Cameron Minerals Trust G-3-107165 | Garrison Operating, L.L.C. only | Glendale (Woodbine, Lower) | Trinity | 1 | 761 | 151K | by Jan 1993 – Jun 2013 |
| Jones Trust "21" G-14-191966 | Mewbourne Oil Company only | Canadian, SE (Douglas) | Hemphill | 1 | 758 | 416K | Nov 2002 – Oct 2022 |
| 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 |
| Barton Trust G-14-175190 | Complete Oil & Gas Services, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 748 | 526K | Oct 1999 – Oct 2008 |
| Henderson Trust "N" G-9-288365 | Apache Corporation only | Howards Creek (Canyon) | Crockett | 1 | 748 | 9.98K | Feb 2020 – Jun 2026 |
| 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 |
| 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 |
| Yarbrough Trust G-5-158225 | Marathon Oil Company only | Oletha (Travis Peak) | Limestone | 1 | 735 | 257K | Apr 1996 – Jan 2001 |
| 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 |
| 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 |
| 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 |
| West Ranch G-10-254080 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 716 | 808K | Dec 2008 – Aug 2026 |
| 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 |
| 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 |
| Longfellow G-10-178717 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 702 | 1.77M | Sep 2000 – Aug 2026 |
| 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 |
| 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 |
| Rust Estate 1 G-6-179854 | Brookston Energy, Inc. only | Oak Hill (Cotton Valley) | Rusk | 1 | 702 | 1.26M | Oct 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 |
| Randee Fawcett Trust G-9-215917 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 692 | 347K | Nov 2005 – Jul 2026 |
| Amando Garza Trust G-4-223900 | Hilcorp Energy Company only | Charco (9200) | Zapata | 1 | 690 | 4.08M | Dec 2006 – Aug 2026 |
| Henderson Trust "EE" G-9-144201 | Red Stag Operating, LLC only | Ozona, SW. (Strawn) | Crockett | 1 | 688 | 492K | by Jan 1993 – Oct 1995 |
| North Hayter Trust A G-6-233115 | Texian Operating Company, LLC only | Douglass, W. (Travis Peak) | Nacogdoches | 1 | 681 | 882K | Dec 2007 – Aug 2026 |
| North Hayter Trust G-6-203918 | Texian Operating Company, LLC only | Douglass, W. (Travis Peak) | Nacogdoches | 1 | 679 | 1.47M | Jul 2004 – Aug 2026 |
| Bruni Mineral Trust G-4-78042 | Hilcorp Energy Company only | Laredo (Lobo) | Webb | 1 | 675 | 1.54M | by Jan 1993 – Aug 2026 |