| Kincaid, A. R. Trust "C" O-9-15837 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 3 | 17.3K | 208K | Sep 2005 – Aug 2026 |
| Bracken Grandchildren Trust G-6-244392 | Valence Operating Company only | Noonday (Travis Peak) | Smith | 1 | 17.3K | 913K | Jun 2008 – Aug 2026 |
| Bruni Mineral Trust North TR "A" G-4-170306 | Lakeshore Operating, LLC only | Valley (Navarro) | Webb | 1 | 17.1K | 9.61M | Dec 1998 – Jun 2022 |
| Zengerle, Ester et Al O-2-5099 | Long Trusts, The only | Anna Barre (Yegua 4900) | De Witt | 2 | 17.1K | 74 | by Jan 1993 – Dec 2008 |
| VS Trust O-10-43616 | OXY USA Inc. only | Spraberry (Trend Area) | Glasscock | 2 | 17K | 43.8K | Sep 2012 – Jan 2019 |
| Wood Family Memorial Trust O-2-8675 | Pure Resources, L.P. only | Wood High (Elsie) | Victoria | 1 | 16.9K | 0 | Oct 2001 – Mar 2003 |
| Boston Texas Land & Trust G-4-202990 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 16.9K | 615K | May 2004 – Jul 2016 |
| Mitchell 31 G-9-159002 | Hilcorp Energy Company only | Pakenham (Thrusted) | Terrell | 1 | 16.8K | 1.44M | May 1996 – Aug 2026 |
| Legacy Trust G-2-283279 | Hydrocarbon Operating, Inc. only | Speaks, SW. (Wilcox -A-) | Lavaca | 1 | 16.8K | 715K | Jul 2017 – May 2026 |
| Rustler Hills 7 O-10-43936 | Conocophillips Company only | Sandbar (Bone Spring) | Reeves | 2 | 16.7K | 154K | Sep 2012 – Feb 2014 |
| Myers Family Trust G-13-237396 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 16.5K | 812K | Dec 2007 – Aug 2026 |
| Martin Trust G-14-236009 | Presidio Petroleum LLC only | Clark Martin (Granite Wash) | Roberts | 1 | 16.5K | 953K | Nov 2007 – May 2023 |
| Lavelle O-8-30641 | Pony Express Corporate Trust only | Emily (Ellenburger) | Coleman | 1 | 16.4K | 104K | May 2010 – Jun 2026 |
| Jones Trust 343 G-14-216312 | Presidio Petroleum LLC only | Lipscomb (Cleveland) | Lipscomb | 1 | 16.3K | 199K | Feb 2006 – Aug 2026 |
| Kincaid, A. R. Trust -D- G-9-136853 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 16.3K | 1.01M | by Jan 1993 – Aug 2026 |
| Mitchell G.K. G-9-58392 | Nitro Oil & Gas, LLC only | Pakenham (Thrusted) | Terrell | 1 | 16.3K | 3.54M | by Jan 1993 – Dec 2025 |
| McClintic Trust O-10-35865 | Endeavor Energy Resources L.P. only | Midwest (Spraberry-Dean) | Midland | 1 | 16.3K | 19.8K | Jun 1998 – Oct 1999 |
| Douglas Mineral Trust O-13-14556 | Syntax Energy Corporation only | Wichita County Regular | Wichita | 3 | 16.2K | 139 | by Jan 1993 – Aug 2026 |
| Teel, Betty Trust O-14-4046 | SNW Operating Company only | Panhandle (Red Cave) | Potter | 2 | 16.2K | 1.74K | by Jan 1993 – Feb 2021 |
| Coates Energy Trust Gas Unit #1 G-4-176936 | Hughes, Dan A. Company, L.P. only | Jeffress (Vicksburg S) | Hidalgo | 1 | 16.1K | 2.94M | Mar 2000 – Aug 2008 |
| JBG Childrens 1991 Trust "A" O-3-25795 | Iron Jaw Operating LLC only | Brookshire | Waller | 1 | 16.1K | 0 | Nov 2011 – Mar 2025 |
| Boston Texas Land & Trust G-4-204585 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 16.1K | 711K | Aug 2004 – Aug 2026 |
| Martin Trust O-14-7690 | Presidio Petroleum LLC only | Clark Martin (Granite Wash) | Roberts | 1 | 16K | 35.6K | Oct 2006 – Oct 2020 |
| Mitchell 11 G-9-161954 | Hilcorp Energy Company only | Pakenham (Thrusted) | Terrell | 1 | 16K | 1.89M | Sep 1996 – Aug 2026 |
| James Trust G-1-279242 | Lewis Petro Properties, Inc. only | Hawkville (Eagleford Shale) | Webb | 1 | 15.9K | 4.27M | Jun 2015 – Aug 2026 |
| Mitchell 6 G-9-189182 | Hilcorp Energy Company only | Pakenham (Thrusted) | Terrell | 1 | 15.9K | 1.16M | May 2002 – Aug 2026 |
| Sealy Smith "B" G-8-207032 | Pony Express Corporate Trust only | Emily (Ellenburger) | Coleman | 1 | 15.9K | 63.2K | Feb 2005 – Mar 2022 |
| Ellwood, W. L. Trust -C- O-10-26553 | Crego Exploration only | Silver Tank (Miss.) | Mitchell | 1 | 15.9K | 350 | by Jan 1993 – Dec 2020 |
| Frost Trust 13 G-4-183946 | Hilcorp Energy Company only | Vaquillas Ranch (Lobo Cons.) | Webb | 1 | 15.9K | 2.36M | Jun 2001 – Aug 2026 |
| Cole Trust Stony G-13-184924 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 15.9K | 680K | Oct 2001 – Jun 2021 |
| Kincaid, A.R. Trust O-9-15360 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 2 | 15.8K | 346K | Apr 2002 – Aug 2026 |
| Boston Texas Land & Trust G-4-226488 | Merit Energy Company only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 15.8K | 1.12M | Feb 2007 – Aug 2026 |
| Aycock Trust O-14-7078 | Courson Oil & Gas, Inc. only | At (Morrow, Upper) | Sherman | 1 | 15.7K | 34.3K | Jan 1996 – Aug 2003 |
| Wilson Family Trust G-3-176900 | Howard Exploration, Inc. only | Hillje (Frio 5998) | Wharton | 1 | 15.6K | 1.64M | Apr 2000 – Oct 2016 |
| Thornton Trust 4-60 O-10-42880 | Permian Resources Operating, LLC only | Phantom (Wolfcamp) | Reeves | 2 | 15.6K | 100K | May 2011 – Feb 2026 |
| Martin Trust B3072 G-14-144160 | United Oil & Shale LLC only | Clark Martin (Granite Wash) | Roberts | 1 | 15.5K | 344K | by Jan 1993 – Jul 2011 |
| Boston Texas Land & Trust G-4-159248 | Shell Western E&P only | Javelina (Vicksburg Cons.) | Hidalgo | 1 | 15.5K | 420K | May 1996 – Aug 2003 |
| Summers Trust O-3-20250 | Trivista Operating LLC only | Serbin (Taylor Sand) | Bastrop | 1 | 15.5K | 60K | by Jan 1993 – Sep 2019 |
| Albert Trust O-11-17521 | Coastal Plains Energy, Inc. only | Ackerly (Dean Sand) | Martin | 1 | 15.5K | 42.8K | by Jan 1993 – Aug 2026 |
| Kincaid, A. R. Trust 'D' G-9-144124 | Scout Energy Management LLC only | Ozona, NE. (Canyon Sand) | Crockett | 1 | 15.4K | 1.58M | by Jan 1993 – Aug 2026 |
| Cook Family Trust G-3-192481 | Alamo Operating Company, L. C. only | Cecil Noble (Wilcox 10,300) | Colorado | 1 | 15.4K | 430K | Nov 2001 – Oct 2008 |
| Flowers Trust "A" G-14-253239 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 15.4K | 779K | Aug 2009 – Aug 2026 |
| Flowers Trust G-14-247756 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 15.3K | 860K | Jan 2009 – Aug 2026 |
| James Trust G-1-287443 | Lewis Petro Properties, Inc. only | Hawkville (Eagleford Shale) | Webb | 1 | 15.3K | 5.11M | Jul 2019 – Aug 2026 |
| Smith, Mary Carol Trust G-1-109470 | Verdun Oil & Gas LLC only | Fashing (Edwards Lime -A-) | Atascosa | 1 | 15.3K | 1.73M | by Jan 1993 – Jul 2026 |
| Land Trust O-10-17100 | Killer Rabbit Fields LLC only | Ken Regan (Delaware) | Reeves | 1 | 15.2K | 226 | by Jan 1993 – Nov 2017 |
| Wilson, John H. Trustee "B" O-10-25128 | Noble Energy Inc only | Rhoda Walker (Canyon 5900) | Ward | 9 | 15.2K | 64.8K | by Jan 1993 – Mar 2016 |
| Flowers Trust G-14-191543 | Mmgl Txph, LLC only | Mendota, NW. (Granite Wash) | Roberts | 1 | 15.1K | 826K | Sep 2002 – Aug 2026 |
| Flowers Trust "B" G-14-227885 | Mewbourne Oil Company only | Mendota, NW. (Granite Wash) | Roberts | 1 | 15.1K | 695K | Mar 2007 – Aug 2026 |
| Cole Trust Stony G-13-189108 | BKV Barnett II, LLC only | Newark, East (Barnett Shale) | Denton | 1 | 15.1K | 971K | May 2002 – Aug 2026 |