| Bruni Mineral Trust "A" G-4-180809 | Tepee Petroleum Co., Inc. only | Glen Martin (Wilcox 6000) | Webb | 1 | 279 | 282K | Jan 2001 – Jun 2004 |
| West Ranch G-10-201354 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 279 | 323K | Feb 2004 – Jul 2026 |
| Henderson Trust "OO" G-9-152145 | Red Stag Operating, LLC only | Ozona (Canyon Sand) | Crockett | 1 | 275 | 180K | Sep 1994 – Aug 2026 |
| Henderson Trust BB G-9-158864 | EOG Resources, Inc. only | Hunt-Baggett, W. (Strawn) | Crockett | 1 | 272 | 417K | May 1996 – Jul 2008 |
| Eubanks Trust G-5-171346 | Diversified Production LLC only | Teague (CV-Bossier Cons.) | Freestone | 1 | 272 | 2.29M | Sep 1998 – Aug 2026 |
| Wm James Trust G-4-58602 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 271 | 327K | by Jan 1993 – Aug 2026 |
| Gresham Trust Unit A G-5-263137 | Comstock Oil & Gas, LLC only | Hayden Lake (Bossier) | Leon | 1 | 271 | 4.52M | May 2011 – Aug 2026 |
| West Ranch G-10-239467 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 271 | 1.13M | Apr 2008 – Mar 2024 |
| Wm James Trust G-4-217212 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 271 | 295K | Dec 2005 – Aug 2026 |
| Haynes Mineral Trust G-4-194789 | Hilcorp Energy Company only | Haynes (Middle Wilcox Cons.) | Zapata | 1 | 270 | 3.76M | Mar 2003 – Aug 2026 |
| Benavides Mineral Trust G-4-150079 | EOG Resources, Inc. only | Lopeno, NE (A-3) | Zapata | 1 | 267 | 1.03M | May 1994 – Apr 1999 |
| West Ranch G-10-224275 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 267 | 530K | Mar 2006 – Oct 2022 |
| West Ranch G-10-245718 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 265 | 957K | Jul 2008 – Aug 2026 |
| McLean, Marrs Trust G-4-182753 | Columbus Energy, LLC only | Thompsonville, NE. (12500) | Jim Hogg | 1 | 263 | 4.17M | May 2001 – Aug 2026 |
| Haynes Mineral Trust G-4-168835 | Hilcorp Energy Company only | Haynes (Middle Wilcox Cons.) | Zapata | 1 | 262 | 1.25M | Jun 1998 – Aug 2026 |
| Martin, Albert Mineral Trust G-1-150288 | Proline Energy Resources Inc only | Cooke (Edwards Lime) | La Salle | 1 | 261 | 52.3K | Apr 1994 – Dec 1999 |
| Marrs McLean Trust G-4-184921 | Columbus Energy, LLC only | Thompsonville, NE. (12500) | Jim Hogg | 1 | 261 | 7.36M | Sep 2001 – Aug 2026 |
| Rand-Paulson Riley Trust G-5-170391 | Diversified Production LLC only | Bohlwhite (Cotton Valley Lime) | Robertson | 1 | 260 | 10.5M | Aug 1998 – Aug 2026 |
| El Peyote Mineral Trust G-4-141922 | TD Natural Resources LLC only | Loma Vieja (Wilcox) | Zapata | 1 | 260 | 23.7M | by Jan 1993 – Aug 2026 |
| West Ranch G-10-190703 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 260 | 2.83M | Aug 2002 – Aug 2026 |
| Longfellow 600 MD G-10-249208 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 256 | 454K | Aug 2008 – Aug 2026 |
| Trustee #2A G-4-171653 | Star of Texas Energy Srvs, Inc. only | Amore (Vicksburg 5500) | Starr | 1 | 254 | 148K | Dec 1998 – Sep 2001 |
| Henderson Trust "DD" G-9-142509 | Red Stag Operating, LLC only | Ozona, SW. (Strawn) | Crockett | 1 | 254 | 456K | Feb 1993 – Jan 1995 |
| Longfellow G-10-243239 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 253 | 1.16M | Aug 2008 – Apr 2026 |
| Hill-Fawcett, Randee Trust "A" G-9-212121 | Upp Operating, LLC only | Sawyer (Canyon) | Sutton | 1 | 252 | 135K | May 2005 – Jul 2026 |
| West Ranch G-10-227205 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 251 | 1.4M | Feb 2007 – Jul 2026 |
| Wm James Trust G-4-62015 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 250 | 293K | by Jan 1993 – Aug 2026 |
| Zeidman Trustee GU G-3-164975 | Mountain V Texas, LLC only | Ciervo Grande (Middle Wilcox) | Wharton | 1 | 248 | 3.7M | Oct 1997 – Jul 2026 |
| West Ranch G-10-237838 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 248 | 2.55M | Jul 2007 – Sep 2025 |
| Cole Trust Four G-13-249493 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 246 | 2.24M | Jan 2009 – Aug 2026 |
| Longfellow State "600" G-10-220459 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 246 | 1.11M | Jan 2006 – Aug 2026 |
| Haynes Mineral Trust G-4-193849 | Hilcorp Energy Company only | Haynes (Middle Wilcox Cons.) | Zapata | 1 | 246 | 3.94M | Jan 2003 – Aug 2026 |
| Longfellow G-10-190678 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 245 | 633K | Sep 2002 – Mar 2026 |
| West Ranch G-10-201767 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 244 | 773K | Mar 2004 – Aug 2026 |
| Benavides Trust G-4-251692 | Merit Energy Company only | Hundido (Lobo) | Zapata | 1 | 242 | 1.32M | Jan 2007 – Aug 2026 |
| Marrs McLean Trust G-4-150050 | Columbus Energy, LLC only | Thompsonville, NE. (12500 FB-C) | Jim Hogg | 1 | 242 | 12M | May 1994 – Aug 2026 |
| Boston Texas Land Trust #3 G-4-153802 | Legacy Corporation, The only | Amore (Vicksburg 5750) | Starr | 1 | 241 | 19.7K | Mar 1995 – Aug 1995 |
| West Ranch G-10-237081 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 240 | 6.67K | Dec 2007 – Oct 2024 |
| Longfellow State 600 G-10-248855 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 239 | 58.3K | Feb 2008 – Aug 2026 |
| Trust "H. T. & B." Unit G-8-156260 | Van Operating, Ltd. only | Alongside (Miss.) | Shackelford | 1 | 236 | 185K | Oct 1995 – Mar 1998 |
| West Ranch G-10-248756 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 236 | 3.24M | Dec 2008 – Apr 2024 |
| Bruni Mineral Trust "A" G-4-80718 | Hilcorp Energy Company only | Juanita (Lobo) | Webb | 1 | 234 | 489K | by Jan 1993 – Jun 2012 |
| Longfellow G-10-188929 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 232 | 220K | Apr 2002 – Jul 2026 |
| Longfellow G-10-251418 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 231 | 4.51M | Aug 2007 – Apr 2026 |
| West Ranch G-10-259455 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 230 | 836K | Apr 2010 – Aug 2026 |
| Cameron Minerals Trust G-3-281155 | Garrison Operating, L.L.C. only | Glendale, East (Wilcox) | Trinity | 1 | 228 | 17.5K | Jun 2015 – Aug 2017 |
| West Ranch G-10-227106 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 226 | 3.83M | Jan 2007 – Mar 2024 |
| West Ranch G-10-230388 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 226 | 3.21M | Mar 2007 – Mar 2026 |
| West Ranch G-10-248449 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 225 | 1.22M | Dec 2008 – Apr 2024 |
| West Ranch G-10-196300 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 223 | 2.09M | May 2003 – Aug 2026 |