| Trusty Oil Unit O-3-23920 | Foundation Energy Management LLC only | Village Mills, East (T-1) | Hardin | 1 | 8.15K | 35.6K | Nov 2000 – Aug 2010 |
| Boring, George W. Trustee GU G-13-247554 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 8.14K | 1.09M | Aug 2008 – Aug 2026 |
| Fidelity Trust "21" G-10-188767 | Abraxas Petroleum Corporation only | Waha (Kinderhook) | Reeves | 1 | 8.13K | 4.92M | Dec 2001 – Aug 2026 |
| Flowers Trust G-14-255022 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 8.13K | 586K | Feb 2010 – Aug 2026 |
| Begert Trust 5 G-14-237692 | Bce-Mach II LLC only | Begert (10,200) | Hemphill | 1 | 8.12K | 834K | Apr 2008 – Aug 2026 |
| Marshall Brothers Trust G.U. G-3-153824 | MW Petroleum Corporation only | Tomball, SE. (12,250) | Harris | 1 | 8.12K | 466K | Mar 1995 – Dec 1996 |
| White Trust O-9-15733 | Geosurveys, Inc. only | Needle Creek (Canyon) | McCulloch | 1 | 8.11K | 0 | May 2005 – Sep 2014 |
| Cole Trust Stony G-13-264129 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 8.08K | 2.25M | Aug 2011 – Aug 2026 |
| Hubberd Trust G-4-153621 | Hilcorp Energy Company only | Liz (9200) | Webb | 1 | 8.07K | 1.17M | Feb 1995 – Aug 2026 |
| Burnett -B- O-13-13504 | Aaa Oil Trust only | Wichita County Regular | Wichita | 7 | 8.06K | 21 | by Jan 1993 – Jul 2010 |
| Bruni Minerals Trust "A" G-4-171620 | Killam Oil Co., Ltd. only | B.M.T. (Lobo Cons.) | Webb | 1 | 8.05K | 959K | Nov 1998 – Oct 2015 |
| Kincaid, A. R. Trust G-9-142948 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 8.04K | 728K | by Jan 1993 – Aug 2026 |
| Iowa Realty Trust -A- O-10-4723 | Bebco Parts Industries, Inc. only | Pecos Valley (High Gravity) | Pecos | 12 | 8.04K | 23 | by Jan 1993 – Aug 2002 |
| Pryor Trust G-3-183996 | Faulconer Energy, LLC only | New Taiton (Wilcox) | Wharton | 1 | 8.03K | 1.17M | May 2001 – Aug 2026 |
| Harbus Trust G-2-215157 | Trio Consulting & Management,llc only | Hallettsville, South (Wx. 6900) | Lavaca | 1 | 8.03K | 640K | Sep 2005 – Jun 2008 |
| Matthews Trust "13" O-8-28470 | Clear Fork, Incorporated only | E 115 (Miss. Cons.) | Shackelford | 1 | 8.03K | 341K | Mar 1998 – Feb 2011 |
| Jones Trust -25- G-14-190781 | Unbridled Resources, LLC only | Canadian, SE (Douglas) | Hemphill | 1 | 8.02K | 395K | Jun 2002 – Jan 2014 |
| Begert Trust 3 G-14-252665 | Bce-Mach II LLC only | Begert (10,200) | Hemphill | 1 | 8K | 571K | Mar 2009 – Aug 2026 |
| Carter, M. K. Trust O-10-31600 | Texas Consolidated Pet. Corp. only | Edwards -04- (Bend, S.) | Crane | 1 | 8K | 22.7K | by Jan 1993 – Oct 1998 |
| Kirk Trustee O-13-24758 | Three J Operating Company, Inc. only | Bowen (Middle Caddo) | Jack | 2 | 7.99K | 21 | by Jan 1993 – Nov 2010 |
| Beggs, G. Trust G-6-274753 | Barrow-Shaver Resources Co. only | Minden (Travis Peak Cons.) | Rusk | 1 | 7.98K | 811K | Sep 2013 – Aug 2026 |
| Wood Trust "A" O-2-7858 | Anaqua Oil & Gas, Inc. only | Wood High (5850) | Victoria | 1 | 7.98K | 35.5K | Feb 1993 – Dec 1993 |
| Marwill, N. L. G-6-193048 | Long Trusts, The only | Oak Hill (Cotton Valley) | Rusk | 1 | 7.96K | 922K | Mar 2003 – Jul 2026 |
| Buckler Trust O-8-12367 | Karper Oil & Gas Corporation only | Walker-Davis (Congl. 3850) | Stephens | 2 | 7.95K | 696K | by Jan 1993 – Jun 2006 |
| Kincaid, A. R. Trust 'C' G-9-37535 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 7.9K | 280K | by Jan 1993 – Aug 2026 |
| Flowers Trust "B" G-14-254268 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 7.89K | 936K | Oct 2009 – Aug 2026 |
| Kincaid, A.R. Trust 'D' G-9-149966 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 7.89K | 718K | Jun 1994 – Aug 2026 |
| Lawless Trust G-6-209746 | Brookston Energy, Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 7.89K | 554K | Jan 2005 – Aug 2026 |
| Stewart Trust G-4-259654 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 7.82K | 2.24M | Aug 2010 – Aug 2026 |
| Kincaid, A.R. Trust "D" G-9-132636 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 7.81K | 550K | by Jan 1993 – Aug 2026 |
| Broussard Trust G-3-184049 | Milestone Operating, Inc. only | Lovells Lake (Marg. 7500) | Jefferson | 1 | 7.8K | 661K | Jul 2001 – Aug 2026 |
| USA Trust G-13-251978 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 7.79K | 968K | Jun 2009 – Aug 2026 |
| Henderson O-3-22565 | Hunt, Wm. Herbert, Trust Est. only | Crooked Bayou (L. Ck. Mtn.) | Liberty | 1 | 7.79K | 43.1K | Nov 1994 – Jul 1995 |
| Begert Trust 43 G-14-254430 | Bce-Mach II LLC only | Begert (10,200) | Hemphill | 1 | 7.71K | 572K | Jun 2008 – Aug 2026 |
| Bruni Mineral Trust "C" G-4-192413 | Lakeshore Operating, LLC only | Bashara-Hereford (7300) | Webb | 1 | 7.69K | 3.01M | Dec 2002 – Aug 2026 |
| Richardson, J. T. Trust "B" O-13-21498 | Olney Oil LLC only | Archer County Regular | Archer | 4 | 7.67K | 171 | by Jan 1993 – Sep 2021 |
| Kincaid, A. R. Trust "B" G-9-146427 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 7.66K | 630K | Aug 1993 – Aug 2026 |
| Kincaid, A. R. Trust "B" G-9-163262 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 7.66K | 568K | May 1997 – Aug 2026 |
| University #36-2 G-9-156556 | White Rock Oil & Gas, LLC only | Pakenham (Thrusted) | Terrell | 1 | 7.66K | 532K | Oct 1995 – Aug 2026 |
| Lacey, Robert A. Trust O-5-3092 | Bowles Energy, Inc. only | Alabama Ferry (Glenrose D, West) | Leon | 4 | 7.62K | 55.6K | Feb 1993 – Mar 2008 |
| Kincaid, A. R. Trust "B" G-9-143305 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 7.61K | 531K | by Jan 1993 – Aug 2026 |
| USA Trust O-13-31436 | XTO Energy Inc. only | Newark, East (Barnett Shale) | Denton | 1 | 7.61K | 560K | Jun 2009 – Feb 2017 |
| West Ranch 5 G-10-173506 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 7.61K | 13.9M | May 1999 – Apr 2024 |
| M.L.E.I. Bruni Mineral Trust G-4-108837 | Hilcorp Energy Company only | Laredo (Lobo) | Webb | 1 | 7.6K | 2.12M | by Jan 1993 – Aug 2026 |
| Longfellow G-10-174242 | Longfellow Energy, LP only | Pinon (Overthrust) | Pecos | 1 | 7.54K | 3.16M | Sep 1999 – Mar 2026 |
| De la Garza Mineral Trust "A" G-4-142971 | Petro-Smith Operating LLC only | Picoso, East (Consolidated) | Webb | 1 | 7.54K | 1.6M | by Jan 1993 – Jan 1998 |
| De la Garza Mineral Trust G-4-142774 | Petro-Smith Operating LLC only | Picoso, East (Consolidated) | Webb | 1 | 7.51K | 1.93M | by Jan 1993 – Feb 2018 |
| Kincaid, A. R. Trust "D" G-9-205849 | Scout Energy Management LLC only | Davidson Ranch (Penn. 7890) | Crockett | 1 | 7.5K | 610K | Jun 2004 – Aug 2026 |
| Mitchell-Williams Trust G-5-193278 | Valence Operating Company only | Loper (Cotton Valley Lime) | Freestone | 1 | 7.5K | 764K | Nov 2002 – Mar 2020 |
| Woodward Trust O-8-26357 | Saguaro Petroleum, LLC only | Strawn, NW. (Marble Falls) | Palo Pinto | 1 | 7.49K | 126K | by Jan 1993 – Nov 2016 |