| Longfellow State "600" G-10-210480 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 187 | 427K | May 2005 – Feb 2014 |
| Longfellow G-10-249754 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 187 | 1.66M | Mar 2008 – Jul 2026 |
| Treadwell Trust -19-B G-9-287404 | BRP Energy, LLC only | Fort McKavitt, N. (Canyon) | Schleicher | 1 | 187 | 3.12K | Jul 2018 – Oct 2024 |
| Arnold Rust Unit 3 G-6-180566 | Brookston Energy, Inc. only | Oak Hill (Cotton Valley) | Rusk | 1 | 187 | 937K | Dec 2000 – Mar 2017 |
| Fossil Wildman Trust G-5-251745 | Contrast Energy, LLC only | Hilltop Resort (Bossier) | Leon | 1 | 185 | 8.67M | May 2009 – Aug 2026 |
| West Ranch G-10-237770 | Sandridge Expl. and Prod., LLC only | Pinon (Overthrust) | Pecos | 1 | 184 | 203 | Oct 2007 – Jul 2008 |
| Allison G-10-218608 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 183 | 79.7K | Apr 2006 – Jun 2025 |
| Longfellow 600 MD G-10-197927 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 183 | 235K | Sep 2003 – Apr 2025 |
| Longfellow G-10-236117 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 183 | 4.55M | Aug 2007 – Aug 2025 |
| West Ranch G-10-161181 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 183 | 634K | Aug 1996 – Aug 2026 |
| Martin-Trust -Ccsl- G-14-126878 | United Oil & Shale LLC only | Clark Martin (Granite Wash) | Roberts | 1 | 182 | 3.57K | by Jan 1993 – Apr 1994 |
| Allison G-10-245331 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 182 | 693K | May 2008 – Sep 2025 |
| West State G-10-245687 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 181 | 1.56M | Apr 2007 – Apr 2024 |
| West Ranch G-10-248901 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 181 | 75.3K | Sep 2008 – Jul 2022 |
| Wimberly Family Trust G-13-301140 | Oakridge Oil and Gas, LP only | KRS (Marble Falls) | Jack | 1 | 181 | 8.55K | Aug 2025 – Aug 2026 |
| West Ranch G-10-242195 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 180 | 566K | Aug 2008 – Jul 2024 |
| West Ranch G-10-246386 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 180 | 235K | Apr 2008 – Aug 2026 |
| Bruni Mineral Trust 15 G-4-210538 | Killam Oil Co., Ltd. only | Zwebb (10350) | Zapata | 1 | 180 | 418K | Feb 2005 – Jan 2016 |
| West Ranch G-10-237766 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 179 | 498K | Nov 2007 – Aug 2026 |
| North Hayter Trust G-6-239297 | Wallace Operating Company LLC only | Douglass, W. (Travis Peak) | Nacogdoches | 1 | 179 | 673K | Aug 2008 – Feb 2022 |
| West Ranch G-10-225293 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 178 | 83.5K | Aug 2006 – Dec 2007 |
| Cooke, C. N. Trust G-1-163606 | Lewis Petro Properties, Inc. only | Cooke (Edwards Lime) | La Salle | 1 | 176 | 933K | Apr 1997 – Jul 2026 |
| West Ranch 138 G-10-223165 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 176 | 64.2K | Dec 2005 – Feb 2022 |
| West Ranch G-10-227228 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 176 | 774K | Mar 2007 – Feb 2025 |
| West Ranch G-10-239429 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 176 | 292K | May 2008 – Feb 2025 |
| West Ranch G-10-248464 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 175 | 3.41M | Aug 2008 – Mar 2026 |
| Tubb, Charles, et al Trustees B G-14-54816 | BP America Production Company only | Canadian, SE (Douglas) | Hemphill | 1 | 175 | 150K | by Jan 1993 – Feb 2001 |
| Longfellow G-10-254321 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 174 | 654K | Aug 2008 – Jan 2026 |
| West State G-10-239428 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 173 | 230K | Oct 2007 – Jul 2026 |
| West Ranch G-10-226598 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 173 | 189K | Jul 2006 – Nov 2025 |
| Haynes Mineral Trust G-4-119537 | Hilcorp Energy Company only | Haynes (Middle Wilcox Cons.) | Zapata | 1 | 170 | 4.96M | by Jan 1993 – Aug 2026 |
| Longfellow G-10-254002 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 169 | 343K | Jan 2009 – Jan 2026 |
| Benavides Trust G-4-193287 | Merit Energy Company only | Hundido (Lobo) | Zapata | 1 | 169 | 1.16M | Feb 2003 – Aug 2026 |
| Haynes Mineral Trust G-4-124383 | Hilcorp Energy Company only | Haynes (Middle Wilcox Cons.) | Zapata | 1 | 169 | 4.21M | by Jan 1993 – Aug 2026 |
| Longfellow G-10-241703 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 167 | 992K | May 2008 – Aug 2026 |
| Longfellow G-10-243252 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 166 | 566K | Sep 2008 – Aug 2026 |
| West Ranch G-10-216626 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 165 | 640K | Apr 2006 – Aug 2026 |
| Cogburn Trust G-8-116103 | Comyn Natural Gas, Inc. only | Skaggs (2700) | Comanche | 1 | 165 | 131K | by Jan 1993 – Oct 2013 |
| West Ranch G-10-248892 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 164 | 608K | Mar 2009 – Aug 2026 |
| West Ranch G-10-242814 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 164 | 305K | May 2008 – Feb 2024 |
| Barton Trust G-14-175046 | Latigo Petroleum, LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 164 | 59.3K | Sep 1999 – Mar 2000 |
| West Ranch G-10-195244 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 163 | 705K | May 2003 – Jul 2026 |
| Downie Ranch G-10-147186 | Longfellow Energy, LP only | Thistle (Overthrust) | Pecos | 1 | 162 | 57.1K | Sep 1993 – Feb 2009 |
| West Ranch G-10-223513 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 162 | 125K | Mar 2006 – Jul 2026 |
| West Ranch G-10-244077 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 160 | 728K | Jan 2008 – Sep 2025 |
| Riley Trust G-6-247657 | TGNR East Texas II LLC only | Carthage (Haynesville Shale) | Harrison | 1 | 160 | 1.5M | Apr 2009 – Aug 2026 |
| University 11 D G-10-47152 | Aaa Oil Trust only | Cardinal (Queen, W. ) | Pecos | 1 | 158 | 28K | by Jan 1993 – Oct 2008 |
| Mackey, W.W. et Al G-6-83728 | Long Trusts, The only | Willow Springs-Mackey (Tr. Pk.) | Gregg | 1 | 158 | 6.05K | by Jan 1993 – Feb 2003 |
| West Ranch G-10-239316 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 158 | 1.39M | Dec 2007 – Jul 2026 |
| Randee Fawcett Trust G-9-217133 | Upp Operating, LLC only | Sawyer (Strawn, North) | Sutton | 1 | 157 | 228K | Nov 2005 – Jul 2026 |