| Flowers Trust "B" G-14-253016 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 11.6K | 827K | Jun 2009 – Aug 2026 |
| Flowers Trust "A" O-14-6875 | Blackbeard Operating, LLC only | Mendota, NW. (Douglas, Lo.) | Roberts | 3 | 11.6K | 326K | Aug 1993 – Jul 2020 |
| Bruni Mineral Trust "A" G-4-226027 | Hilcorp Energy Company only | B.M.T. (Lobo Cons.) | Webb | 1 | 11.4K | 746K | Mar 2007 – Mar 2018 |
| Standard Trust Company O-3-14358 | Arrowhead Operating Inc. only | Giddings (Austin Chalk-3) | Fayette | 1 | 11.4K | 5.22K | by Jan 1993 – Aug 2013 |
| Kincaid, A. R. Trust 'C' G-9-150392 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 11.4K | 575K | Jul 1994 – Aug 2026 |
| Jackson Trust O-13-31469 | Rhodes Disposal, Inc. only | Bryson, East | Jack | 1 | 11.4K | 0 | Oct 2008 – May 2026 |
| Flowers Trust "A" G-14-218936 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 11.4K | 626K | Aug 2006 – Apr 2022 |
| Prideaux, R. O. "B" O-13-18847 | Beisch, Rusty only | Jack County Regular | Jack | 1 | 11.3K | 191 | by Jan 1993 – Feb 2012 |
| Bruni Mineral Trust G-4-64000 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 11.3K | 3.94M | by Jan 1993 – Aug 2026 |
| Guaranty Title & Trust G-4-129953 | Royal Production Company, Inc. only | Saxet (9150) | Nueces | 1 | 11.3K | 580K | by Jan 1993 – Jan 1998 |
| Rogers #4 O-6-12844 | Roach, R. Byron Trustee only | Rogers Lake (Glen Rose) | Harrison | 1 | 11.2K | 80 | by Jan 1993 – May 1998 |
| Frost Trust 43 G-4-187485 | Hilcorp Energy Company only | Vaquillas Ranch (Lobo Cons.) | Webb | 1 | 11.2K | 1.65M | Jan 2002 – Aug 2026 |
| Judkins Trust O-9-14630 | Anderson, James K. Inc. only | Jerrybo (Tannehill) | Schleicher | 2 | 11.2K | 1.92K | Aug 1997 – Feb 2003 |
| Kincaid, A. R. Trust 'C' G-9-144023 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 11.1K | 648K | Feb 1993 – Aug 2026 |
| Smith Family Trust Gas Unit G-6-215208 | Weatherly Oil & Gas, LLC only | Naconiche Creek (Rod.-TP Cons.) | Nacogdoches | 1 | 11.1K | 1.11M | Feb 2005 – Apr 2019 |
| Hanna Trust O-13-33879 | Burk Royalty Co., Ltd. only | Odell (Canyon Sd. 4300) | Wilbarger | 1 | 11.1K | 0 | Apr 2019 – Jul 2026 |
| Wylie Trust-Burks G-6-286850 | Buckhorn Operating LLC only | Brachfield, S.E. (Cotton Valley) | Rusk | 1 | 11K | 3.51M | Jan 2019 – Aug 2026 |
| Winterbotham Trust "B" G-9-180940 | OXY USA EOR, LLC only | Brooks, South (Cisco 5600) | Irion | 1 | 11K | 549K | Jan 2001 – Dec 2019 |
| Baker Trust G-2-148480 | Rutherford Oil Corporation only | Brazil (1ST Tom Lyne) | Live Oak | 1 | 11K | 8.45M | Feb 1994 – Dec 2001 |
| Schreiner Ranch Trust II G-2-148648 | Forney Oil Corporation only | Limes (Wilcox F-1) | Live Oak | 1 | 10.9K | 431K | Feb 1994 – Apr 1996 |
| Rio Grande Land Trust G.U. #1 O-4-12903 | Texas Independent Explor Ltd. only | Mercedes ( 3-M) | Hidalgo | 1 | 10.9K | 49K | Aug 1999 – Mar 2005 |
| Bailey, James Trustee O-3-23489 | Neg Operating LLC only | Paul (LW-15) | Colorado | 1 | 10.8K | 92.8K | May 1998 – Feb 2002 |
| Loving Estate O-13-11587 | Brightman Family Trust only | Bryson, East | Jack | 1 | 10.8K | 19 | by Jan 1993 – Jun 1996 |
| Los Ojuelos Mineral Trust G-4-224490 | Evans, S. Lavon Jr. Oper. Co. only | Pancho (Wilcox) | Webb | 1 | 10.8K | 1.84M | Sep 2006 – Apr 2019 |
| Centerre Bank Trustee O-10-42237 | Boaz Energy II Operating, LLC only | Dimmitt (Delaware Cons) | Loving | 1 | 10.8K | 7.31K | Oct 2012 – Apr 2019 |
| Flowers Trust G-14-254259 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 10.8K | 707K | Oct 2009 – Aug 2026 |
| J.P. Jones & Fern Jones Trust O-8-32157 | Flint Rock Resources Mgmnt, Inc. only | Coleman County Regular | Coleman | 3 | 10.7K | 0 | May 2017 – Jul 2026 |
| Carson, H. Trustee O-9-5982 | Hilcorp Energy Company only | Christi (Canyon 6800) | Irion | 5 | 10.7K | 186K | by Jan 1993 – Aug 2026 |
| Huebner Trusts O-3-25859 | Red Wolf Oil Company, Inc. only | Hamman (9500 Frio) | Matagorda | 1 | 10.7K | 69.3K | Mar 2011 – Aug 2013 |
| Rustler Hills 18 O-10-43144 | Conocophillips Company only | Rustler Hills | Reeves | 1 | 10.7K | 682K | Oct 2012 – Nov 2013 |
| West Ranch G-10-260005 | Sandridge Expl. and Prod., LLC only | Pinon (Overthrust) | Pecos | 1 | 10.6K | 291K | Jul 2008 – Sep 2014 |
| West Ranch G-10-161610 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 10.6K | 7.9M | Oct 1996 – Jul 2022 |
| C-Bruni Mineral Trust G-4-146275 | Hilcorp Energy Company only | Bashara-Hereford (7300) | Webb | 1 | 10.6K | 1.68M | Aug 1993 – Aug 2026 |
| Brittingham Trust "B" O-8-14284 | Spring Tree Management LC only | Shackelford County Regular | Shackelford | 2 | 10.6K | 19 | by Jan 1993 – May 2009 |
| Foster, E. O-13-16917 | Horansky Burrell Revocable Trust only | Wichita County Regular | Wichita | 1 | 10.6K | 20 | by Jan 1993 – Jul 2026 |
| Garza Zamora Energy Trust G-4-237506 | Merit Energy Company only | Flores (Vicksburg, Lower) | Starr | 1 | 10.6K | 691K | Mar 2008 – Aug 2026 |
| Rust-Weishuhn O-9-12011 | Atlas Operating LLC only | FWB (Canyon Sand) | Tom Green | 3 | 10.5K | 7.33K | by Jan 1993 – Jan 2012 |
| Smith Family Trust G-6-229730 | Weatherly Oil & Gas, LLC only | Naconiche Creek (Rod.-TP Cons.) | Nacogdoches | 1 | 10.5K | 944K | Feb 2007 – Sep 2019 |
| West Ranch G-10-153555 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 10.5K | 3.17M | Dec 1994 – Jan 2026 |
| Alexander Trust O-13-33724 | Legacy Exploration, LLC I only | Dillard, SE. (Bryson) | Jack | 1 | 10.4K | 792 | Feb 2017 – Oct 2022 |
| Trust O-14-6430 | Unit Petroleum Company only | Sixty Six (Morrow, Upper) | Hemphill | 1 | 10.4K | 980K | by Jan 1993 – Dec 1998 |
| Flache Trust O-8-29864 | Bell, Johnny Inc. only | Truby (Strawn) | Jones | 1 | 10.4K | 22.9K | Dec 2006 – Oct 2016 |
| Kincaid, A. R. Trust G-9-143303 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 10.4K | 820K | by Jan 1993 – Aug 2026 |
| Flowers Trust G-14-244495 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 10.2K | 406K | Nov 2008 – Jul 2022 |
| Henderson Trust G-9-144782 | Apache Corporation only | Howards Creek (Canyon) | Crockett | 1 | 10.2K | 1.41M | Apr 1993 – Jul 2026 |
| Kincaid, A.R. Trust 'D' G-9-147558 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 10.2K | 760K | Dec 1993 – Aug 2026 |
| Kincaid, A. R. Trust -D- G-9-142282 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 10.2K | 1.17M | by Jan 1993 – Aug 2026 |
| CML Mgmt Trust O-3-27873 | Inland Ocean, Inc. only | Hyatt, South (Wilcox 9,400) | Wharton | 1 | 10.2K | 93.4K | Feb 2020 – Nov 2020 |
| Spira, Melvin Trustee O-3-6989 | Silverbrook Operating, LLC only | Big Creek | Fort Bend | 4 | 10.1K | 79 | by Jan 1993 – Dec 2018 |
| Henderson Trust "NN" O-9-13803 | Enron Oil & Gas Company only | Ozona (Canyon Sand, Oil) | Crockett | 1 | 10.1K | 128K | Dec 1994 – Jul 1996 |