| West Ranch G-10-257996 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 114 | 350K | May 2010 – Aug 2026 |
| West G-10-190212 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 114 | 1.15M | Apr 2002 – Apr 2024 |
| West Ranch G-10-248391 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 113 | 432K | Jun 2008 – Sep 2023 |
| West Ranch G-10-256556 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 113 | 1.63M | Oct 2009 – Mar 2024 |
| Longfellow G-10-254194 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 112 | 771K | Jan 2009 – Aug 2026 |
| Allison G-10-167345 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 112 | 1.06M | Feb 1998 – Feb 2023 |
| Ellis, Carl Trustee -A- G-14-90611 | Latigo Petroleum, LLC only | Pan Petro (Cleveland) | Ochiltree | 1 | 111 | 682K | by Jan 1993 – Aug 2026 |
| Longfellow G-10-256845 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 110 | 292K | Jan 2009 – May 2025 |
| Jones Trust -26- G-14-190855 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 110 | 104K | Aug 2002 – Feb 2024 |
| Raun, L. G. Family Trust G-3-203094 | Amtex Energy, Inc. only | Lowell Raun (Frio) | Wharton | 1 | 110 | 608K | Mar 2004 – Aug 2009 |
| Cole Trust "B" G-13-179322 | Bedrock Production, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 110 | 765K | Oct 2000 – Jul 2020 |
| Holbein Trust G-4-176745 | Columbus Energy, LLC only | Thompsonville, NE. (12500) | Jim Hogg | 1 | 110 | 3.48M | Mar 2000 – Aug 2026 |
| Douglas Mineral Trust -H- O-13-32297 | Extex Operating Company only | Ancell (Ellenburger) | Wichita | 1 | 110 | 0 | Jun 2011 – Aug 2011 |
| Allison G-10-223213 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 109 | 952K | Sep 2006 – Sep 2025 |
| West Ranch G-10-205893 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 109 | 1.05M | Oct 2004 – Aug 2026 |
| Hill-Fawcett, Randee Trust "E" G-9-206115 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 109 | 314K | Nov 2003 – Jul 2026 |
| Coates Energy Trust GU No. 1 G-4-215952 | Hughes, Dan A. Company, L.P. only | Jeffress (Vicksburg Q) | Hidalgo | 1 | 109 | 7.23K | Jan 2006 – Aug 2008 |
| Bruni Mineral Trust -B- G-4-65553 | Enron Oil & Gas Company only | Retamia (Wilcox 9300) | Webb | 1 | 108 | 7.78K | by Jan 1993 – Jun 1993 |
| West Ranch G-10-274201 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 108 | 414K | Oct 2010 – Oct 2024 |
| Allison G-10-219551 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 108 | 1.5M | Jul 2006 – Apr 2024 |
| West Ranch G-10-237983 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 108 | 411K | Jan 2008 – Aug 2026 |
| Goree -SKB G-8-78889 | Long Trusts, The only | Lucky Lane (Marble Falls Lm.) | Stephens | 1 | 108 | 326K | by Jan 1993 – Jul 2020 |
| Bruni Mineral Trust 'A' G-4-289563 | Hilcorp Energy Company only | Juanita (7100) | Webb | 1 | 107 | 12.8K | Mar 2018 – May 2026 |
| State of Texas -CS- O-10-13467 | Hendon Wm E. Jr. Rev Lvng Trust only | Triple-N (Penn., Upper) | Andrews | 4 | 107 | 16 | Apr 1996 – Mar 2019 |
| Longfellow State "E" G-10-244888 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 107 | 1.37M | Aug 2008 – Jul 2026 |
| West Ranch G-10-227206 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 107 | 321K | Feb 2007 – Jul 2026 |
| Jones Trust -25- G-14-196469 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 106 | 147K | Apr 2003 – Sep 2019 |
| West Ranch G-10-224939 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 106 | 769K | Oct 2005 – Aug 2026 |
| Longfellow G-10-192534 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 106 | 1.51M | Nov 2002 – Apr 2024 |
| Buzzard, G.F. Etal Trustee -A- G-14-41302 | BP America Production Company only | Hansford (Morrow, Lower) | Hansford | 1 | 106 | 627K | by Jan 1993 – Dec 2005 |
| West Ranch G-10-218568 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 105 | 1.91M | Jun 2006 – Mar 2024 |
| Weil -B-, Survey 131 O-4-8824 | Villalon, J. Antonio, Trustee only | Sarnosa, West | Duval | 2 | 105 | 5 | by Jan 1993 – Jun 1993 |
| Benavides Trust G-4-196348 | Merit Energy Company only | Hundido (Lobo) | Zapata | 1 | 105 | 1.85M | Aug 2003 – Feb 2016 |
| Eubanks Trust G-5-184644 | Diversified Production LLC only | Teague (CV-Bossier Cons.) | Freestone | 1 | 105 | 949K | Jun 2001 – Aug 2026 |
| Brown, J. O. Trust G-6-257693 | Chalker Operating Inc. only | Blocker (Page) | Harrison | 1 | 105 | 4.28K | Apr 2010 – Nov 2010 |
| Allison G-10-208766 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 105 | 755K | Mar 2005 – Jul 2026 |
| West Ranch G-10-199629 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 105 | 611K | Nov 2003 – Feb 2025 |
| West Ranch G-10-243977 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 104 | 760K | Mar 2008 – Jan 2026 |
| Scurlock Trust "A" G-3-43877 | Sonora Petroleum Corp. only | Clinton, N. (Yegua 8400) | Harris | 1 | 103 | 8.48K | by Jan 1993 – Jan 1995 |
| Randee Fawcett Trust G-9-217080 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 103 | 260K | Dec 2005 – Jul 2026 |
| West Ranch G-10-253830 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 103 | 4.22M | Dec 2007 – Mar 2024 |
| West Ranch G-10-256558 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 102 | 2.86M | Oct 2009 – Apr 2024 |
| West Ranch G-10-246384 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 102 | 2.4M | Oct 2007 – Apr 2024 |
| Holbein Trust G-4-180049 | Columbus Energy, LLC only | Thompsonville, NE. (12500) | Jim Hogg | 1 | 101 | 267K | Nov 2000 – Jun 2016 |
| Windham Trust 16 O-9-13567 | Cherokee Drlg. & Dev. Corp. only | Triumph (Wolfcamp) | Upton | 1 | 100 | 1 | Aug 1993 – Aug 1993 |
| Rust #1 O-9-13291 | J & J Services Company only | Lisa (Strawn) | Tom Green | 1 | 100 | 787 | by Jan 1993 – Mar 1995 |
| West Ranch G-10-237196 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 100 | 136K | Nov 2007 – Jul 2026 |
| West Ranch G-10-240631 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 100 | 238K | Aug 2008 – Jul 2026 |
| Henderson O-3-22774 | Hunt, Wm. Herbert, Trust Est. only | Crooked Bayou (12,000 Yegua) | Liberty | 1 | 99 | 606 | Jul 1995 – Aug 1995 |
| Allison G-10-249994 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 98 | 559K | Sep 2008 – Mar 2026 |