| Boring, George W. Trustee G-13-57274 | BKV Barnett, LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 1.01K | 919K | by Jan 1993 – Aug 2026 |
| West Ranch G-10-223431 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 1K | 1.01M | Aug 2006 – Aug 2025 |
| Bruni Mineral Trust 'A' G-4-153633 | Hilcorp Energy Company only | Juanita (7100) | Webb | 1 | 1K | 92.1K | Aug 1994 – Jul 2026 |
| HTR-Wolf O-8-25534 | Trustar Operating Company Inc. only | Wolf (Serratt Lower) | Coleman | 2 | 1K | 3.47K | Apr 1993 – Dec 2000 |
| Buckler Trust G-8-217082 | Dale Operating Company only | Walker-Davis (Congl. 3850) | Stephens | 1 | 999 | 109K | Jul 2006 – Jan 2025 |
| Craft-Trust G-13-132805 | WFW Production Company, Inc. only | Gilley, W. (Atoka Congl.) | Jack | 1 | 997 | 32.9K | by Jan 1993 – Jun 2002 |
| North Hayter Trust G-6-200985 | Texian Operating Company, LLC only | Douglass, W. (Travis Peak) | Nacogdoches | 1 | 995 | 1.2M | Feb 2004 – Apr 2026 |
| Miller Trust G-6-293038 | Sydri Operating, LLC only | Waterman (Travis Peak) | Nacogdoches | 1 | 994 | 516K | Apr 2022 – Aug 2026 |
| West Ranch G-10-227389 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 986 | 1.19M | Feb 2007 – Mar 2026 |
| West Ranch G-10-194427 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 986 | 788K | Mar 2003 – Jun 2023 |
| Hefte, Mary Tom Trust G-4-173526 | Harper Hefte, Inc. only | Agua Dulce (Consolidated Frio) | Nueces | 1 | 983 | 147K | Jun 1999 – Dec 2021 |
| Jones, Burrell O-1-9607 | Bledsoe, R.K. Trust Oil Operator only | Pruitt, S. (Escondido) | Atascosa | 1 | 983 | 105 | by Jan 1993 – Apr 2002 |
| West Ranch G-10-204038 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 982 | 222K | Jul 2004 – Aug 2026 |
| Bruni Mineral Trust 'A' G-4-178978 | Hilcorp Energy Company only | Cerrito Creek (Lobo) | Webb | 1 | 978 | 1.54M | Aug 2000 – Jul 2026 |
| Longfellow G-10-169099 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 976 | 1.39M | May 1998 – Aug 2026 |
| West Ranch G-10-230311 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 975 | 654K | Jul 2007 – Jan 2026 |
| Coates Energy Trust Gas Unit #1 G-4-177382 | Hughes, Dan A. Company, L.P. only | Jeffress, E. (Vicksburg O\p) | Hidalgo | 1 | 973 | 410K | May 2000 – Aug 2008 |
| Jones Trust -26- G-14-117794 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 973 | 235K | by Jan 1993 – Aug 2023 |
| West Ranch G-10-177782 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 971 | 3M | May 2000 – Jun 2023 |
| Mitchell State 10 G-9-184545 | BRP Energy, LLC only | Pakenham (Thrusted) | Terrell | 1 | 971 | 1.12M | Jul 2001 – Jul 2024 |
| Henderson Trust "OO" G-9-142973 | Red Stag Operating, LLC only | Ozona, SW. (Strawn) | Crockett | 1 | 966 | 302K | by Jan 1993 – Oct 2019 |
| Longfellow G-10-205895 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 966 | 1.56M | Nov 2004 – Mar 2012 |
| West Ranch G-10-240101 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 963 | 1.46M | Feb 2008 – Feb 2025 |
| Henderson Trust "BB" G-9-144182 | Red Stag Operating, LLC only | Ozona, SW. (Strawn) | Crockett | 1 | 962 | 434K | Mar 1993 – Jul 2014 |
| Haynes, Leonard G-4-164984 | Hunt, Wm. Herbert, Trust Est. only | Charco (9900) | Zapata | 1 | 955 | 106K | Oct 1997 – Jun 1998 |
| West Ranch G-10-227394 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 953 | 2.48M | Jan 2007 – Feb 2025 |
| Odiorne, Truman N., Trustee O-9-11274 | TXP, Incorporated only | F & H, N. (Cisco 2580) | Menard | 1 | 951 | 4.62K | by Jan 1993 – May 1997 |
| Longfellow State 600 G-10-239358 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 943 | 31K | Jan 2008 – Jan 2017 |
| Corpus Christi Bank & Trust G-4-180273 | Magnum Producing & Operating Co. only | Plymouth (5200) | San Patricio | 1 | 939 | 86.1K | Sep 2000 – Dec 2001 |
| Kincaid, A. R. Trust 'C' G-9-144126 | Texaco E & P Inc. only | Davidson Ranch (Penn. 7890) | Crockett | 1 | 938 | 183K | Feb 1993 – Mar 1996 |
| North Hayter Trust G-6-207851 | Wallace Operating Company LLC only | Douglass, W. (Travis Peak) | Nacogdoches | 1 | 937 | 1.46M | Jan 2005 – Aug 2024 |
| West Ranch G-10-247964 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 935 | 768K | Nov 2008 – Aug 2026 |
| Douglas Mineral Trust -L- O-13-15357 | Wilson-Shab Corp. only | Cash (Strawn 3820) | Wichita | 1 | 935 | 21 | by Jan 1993 – Sep 1994 |
| Harris Trust G-6-238762 | TGNR East Texas II LLC only | Woodlawn (Cotton Valley) | Harrison | 1 | 931 | 137K | Feb 2008 – Apr 2013 |
| West Ranch G-10-178072 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 931 | 1.27M | Jul 2000 – Jul 2026 |
| Yarbrough Trust G-5-156211 | Lodestone Operating, Inc. only | Oletha (Travis Peak) | Limestone | 1 | 927 | 1.46M | Oct 1995 – Aug 2026 |
| North Hayter Trust A G-6-202948 | Texian Operating Company, LLC only | Douglass, W. (Travis Peak) | Nacogdoches | 1 | 926 | 540K | Jun 2004 – Aug 2026 |
| Carroll, John Trustee O-1-13935 | Ampak Oil Company only | Marcelina Creek (Austin Chalk) | Wilson | 1 | 917 | 10 | Sep 1994 – Dec 1995 |
| Ramirez Mineral Trust A G-4-184435 | Hilcorp Energy Company only | Flores, W. (Perdido) | Zapata | 1 | 916 | 671K | May 2001 – Aug 2026 |
| Garza, Amando Trust G-4-225662 | Hilcorp Energy Company only | Charco (9900) | Zapata | 1 | 916 | 5.03M | Jan 2007 – Aug 2026 |
| Wimberly Family Trust G-13-240018 | Oakridge Oil and Gas, LP only | Newark, East (Barnett Shale) | Jack | 1 | 916 | 88.7K | Aug 2007 – Dec 2008 |
| Shannon Parker Trust G-13-250431 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Somervell | 1 | 915 | 214K | Jan 2009 – Apr 2013 |
| Henderson Trust "GG" G-9-154420 | Red Stag Operating, LLC only | Ozona, SW. (Strawn) | Crockett | 1 | 914 | 364K | Feb 1995 – Aug 2026 |
| Laird, S.S. Est. et Al G-6-206245 | Long Trusts, The only | Oak Hill (Cotton Valley) | Rusk | 1 | 903 | 799K | Sep 2004 – Jul 2026 |
| North Hayter Trust G-6-201345 | Texian Operating Company, LLC only | Douglass, W. (Travis Peak) | Nacogdoches | 1 | 901 | 929K | Mar 2004 – Aug 2026 |
| Wardner, G. P., Trustee O-4-3971 | Poor Boy Oilfield Service only | El Tanque (1500 Sand) | Starr | 1 | 901 | 37 | by Jan 1993 – Jul 1996 |
| West Ranch G-10-205908 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 900 | 459K | Oct 2004 – Aug 2026 |
| West Ranch G-10-243601 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 898 | 1.21M | Nov 2007 – Jul 2026 |
| Legacy Trust A-170 G-2-221123 | Hunt Oil Company only | Giv'n Take (Roeder Sand) | Lavaca | 1 | 897 | 1.33M | Jun 2006 – Jan 2011 |
| Creek Ranch 10 G-9-155668 | Conocophillips Company only | Pakenham (Thrusted) | Terrell | 1 | 895 | 13.2K | Jul 1995 – Dec 1996 |