| Allison G-10-256720 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 133 | 4.96M | Aug 2009 – Apr 2024 |
| West Ranch G-10-258533 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 132 | 1.03M | Jun 2010 – Apr 2024 |
| West Ranch G-10-238166 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 132 | 609K | Mar 2008 – Jan 2024 |
| West Ranch G-10-244030 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 131 | 384K | Oct 2008 – Jul 2026 |
| West Ranch G-10-226472 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 131 | 140K | Nov 2006 – Jul 2026 |
| "4" Snyder Mineral Trust G-8-229705 | Glover, Michael C. only | Callahan County Regular (Gas) | Callahan | 1 | 131 | 7.62K | Oct 2007 – Feb 2011 |
| Alamo National Bank Trustee G-1-74318 | Liquid Petroleum Resources, Inc. only | Green Branch (6100) | McMullen | 1 | 130 | 102K | May 1998 – Jan 2011 |
| West Ranch G-10-230474 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 129 | 1.64M | Jun 2007 – Apr 2024 |
| Eubanks Trust G-5-171892 | Diversified Production LLC only | Teague (CV-Bossier Cons.) | Freestone | 1 | 129 | 2.66M | Jan 1999 – Jul 2026 |
| Schmid Trust G-2-161787 | McCombs Energy LLC only | Maxine, East (Massive, Lo.) | Live Oak | 1 | 129 | 25.3K | Feb 1997 – Apr 1999 |
| West Ranch G-10-244034 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 129 | 583K | Sep 2008 – Jul 2026 |
| Cuellar Trust GU G-4-162837 | Varas Energy Operating Company, only | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 125 | 873K | Apr 1997 – Apr 2022 |
| King Ranch Inc. Trustees O-4-5998 | Zinn Petroleum Co. only | Kingsville (2910) | Kleberg | 1 | 125 | 3 | Feb 1993 – Dec 1994 |
| Randee Fawcett Trust G-9-212951 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 125 | 115K | Apr 2005 – Jul 2026 |
| Allison G-10-183907 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 125 | 599K | Jun 2001 – Apr 2024 |
| Marrs McLean Trust G-4-178020 | Columbus Energy, LLC only | Thompsonville, NE. (12500) | Jim Hogg | 1 | 125 | 5.36M | Jul 2000 – Aug 2026 |
| Marrs McLean Trust G-4-163877 | Columbus Energy, LLC only | Thompsonville, NE. (12500 FB-C) | Jim Hogg | 1 | 125 | 10.3M | Jul 1997 – Jul 2022 |
| Walker-Buckler Trust -379- O-8-10001 | Tabor Creek Oil Company only | Shackelford County Regular | Shackelford | 2 | 125 | 48 | by Jan 1993 – Sep 2000 |
| West Ranch G-10-229637 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 124 | 212K | May 2007 – Sep 2025 |
| Martin, Albert Mineral Trust G-1-151682 | Lewis Petro Properties, Inc. only | Cooke (Edwards Lime) | La Salle | 1 | 124 | 404K | Jul 1994 – Jul 2026 |
| Coates Energy Trust Gas Unit "1" G-4-246930 | Hughes, Dan A. Company, L.P. only | Jeffress (Vicksburg M) | Hidalgo | 1 | 124 | 9.11K | Jan 2009 – Mar 2010 |
| West Ranch G-10-208597 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 124 | 624K | Mar 2005 – Aug 2026 |
| Seisma-Richardson Trust #3 O-13-29201 | Seisma Drilling Corporation only | Olney, N W. (Miss.) | Archer | 1 | 123 | 0 | Jul 1996 – Nov 1997 |
| Guaranty Title & Trust "A" G-4-202930 | Peoples Energy Prod.-TX, L.P. only | Corpus Christi, W. ( 9800 Frio) | Nueces | 1 | 123 | 1.4K | Jun 2004 – Jun 2004 |
| Weinheimer-Grady, E. A. Trust G-3-209585 | Crimson Exploration Oper., Inc. only | Alwan (Frio 4700) | Wharton | 1 | 123 | 157K | Apr 2005 – Jul 2006 |
| West Ranch G-10-245876 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 123 | 872K | Sep 2008 – Apr 2026 |
| Rust, G.F. et al #1B O-9-13309 | J & J Services Company only | Lisa (Palo Pinto) | Tom Green | 1 | 122 | 15 | by Jan 1993 – Jul 1994 |
| West Ranch G-10-196298 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 122 | 1.6M | May 2003 – Aug 2026 |
| West Ranch G-10-256629 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 122 | 2.17M | Jan 2010 – Mar 2024 |
| Cole Trust "B" G-13-178120 | Bedrock Production, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 121 | 1.45M | Jul 2000 – Jul 2020 |
| Semmes Trust, et al "906" G-4-211446 | Forest Oil Corporation only | Rincon (G-J Frio 4500) | Starr | 1 | 121 | 7.23K | Jun 2005 – May 2007 |
| West Ranch G-10-206085 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 121 | 943K | Sep 2004 – Aug 2026 |
| West Ranch G-10-248617 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 120 | 599K | Dec 2008 – Sep 2025 |
| VT James Trust 1355 G-4-195404 | Lewis Petro Properties, Inc. only | Tom Walsh (Olmos) | Webb | 1 | 120 | 250K | May 2003 – Aug 2026 |
| West Ranch G-10-252487 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 120 | 1.3M | Oct 2006 – Mar 2024 |
| Frost National Bank Trustee G-1-131848 | Carrizo Exploration, Inc. only | Dent Ingram (Olmos 1) | Dimmit | 1 | 120 | 68.1K | by Jan 1993 – Feb 1998 |
| Bruni Mineral Trust G-4-85954 | Columbus Energy, LLC only | Laredo (Navarro) | Webb | 1 | 120 | 445K | by Jan 1993 – May 2019 |
| CML Trust G-3-295767 | MB Energy, LLC only | Hutchins-Kubela (Frio 4800) | Wharton | 1 | 119 | 15.8K | Aug 2023 – Nov 2024 |
| Longfellow G-10-190543 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 119 | 692K | Jul 2002 – Feb 2025 |
| West Ranch G-10-254820 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 119 | 3.16M | Dec 2008 – Apr 2024 |
| Henderson Trust "OO" G-9-142970 | Red Stag Operating, LLC only | Ozona, SW. (Strawn) | Crockett | 1 | 118 | 934K | by Jan 1993 – Aug 2026 |
| Billings-Newton Trust G-4-120050 | Cox Exploration, Inc. only | El Gato (Lobo) | Webb | 1 | 117 | 32.5K | by Jan 1993 – Dec 1993 |
| Mnrustik G-3-185220 | Bay Rock Operating Company only | Jones Creek (3400) | Wharton | 1 | 117 | 57.8K | Sep 2001 – Aug 2005 |
| Mitchell 8 G-9-211093 | Hilcorp Energy Company only | Pakenham (Thrusted) | Terrell | 1 | 116 | 73.6K | Jul 2004 – Aug 2026 |
| Eubanks Trust G-5-176283 | Diversified Production LLC only | Teague (CV-Bossier Cons.) | Freestone | 1 | 116 | 3.2M | Dec 1999 – Aug 2026 |
| Haynes Mineral Trust G-4-193244 | Hilcorp Energy Company only | Haynes (Middle Wilcox Cons.) | Zapata | 1 | 116 | 4.66M | Dec 2002 – Aug 2026 |
| Cole Trusts 576 "A" G-13-192817 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 115 | 505K | Oct 2002 – Aug 2026 |
| Marrs McLean Trust -A- G-4-230403 | Columbus Energy, LLC only | Thompsonville, NE. (10640) | Jim Hogg | 1 | 115 | 821K | May 2006 – Apr 2017 |
| West Ranch G-10-240641 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 115 | 803K | Jul 2008 – Apr 2024 |
| Boatmen Trust Co. GU #2 G-5-168486 | Anadarko Petroleum Corporation only | Teague (Travis Peak) | Freestone | 1 | 114 | 119K | Apr 1998 – Jul 2008 |