| West Hasting Unit O-3-19054 | Denbury Onshore, LLC only | Hastings, West | Brazoria | 566 | 45M | 14.1M | Jan 1993 – Apr 2026 |
| State Tract 331 G-3-167352 | Fieldwood Onshore LLC only | Eagle Bay (Vicksburg) | Galveston | 1 | 6.42M | 53.7M | Dec 1997 – Dec 2004 |
| Cade, E. K. O-3-2095 | Big Lake Corporation only | High Island | Galveston | 74 | 2.24M | 1.18M | Jan 1993 – Mar 2026 |
| State Tract 330 G-3-172660 | Transtexas Gas Corporation only | Eagle Bay (Vicksburg) | Galveston | 1 | 1.82M | 23.2M | Feb 1999 – Sep 2001 |
| State Tract 331 G-3-207398 | Fieldwood Onshore LLC only | Eagle Bay (Vicksburg) | Galveston | 1 | 1.71M | 5.44M | Dec 2004 – Jun 2014 |
| Federal Gayatt O-3-22502 | Hilcorp Energy Company only | Franks, NW. (8900) | Galveston | 2 | 1.25M | 831K | Apr 1994 – Apr 2026 |
| Trust Unit O-3-22288 | Hilcorp Energy Company only | Franks, NW. (8900) | Galveston | 2 | 1.08M | 362K | Feb 1994 – Apr 2026 |
| Stewart, Maco -a- 300 O-3-1631 | Gcows Operating LLC only | Gillock (Big Gas) | Galveston | 9 | 1.02M | 243K | Jan 1993 – Apr 2026 |
| State Tract 331 G-3-191681 | Talos QN Exploration LLC only | Eagle Bay (Vicksburg) | Galveston | 1 | 811K | 19.4M | Nov 2002 – May 2014 |
| Franks /8900 Sand/ Unit O-3-6493 | Hilcorp Energy Company only | Franks (8900 Sand) | Galveston | 21 | 705K | 1.2M | Jan 1993 – Apr 2026 |
| Alexander, Thos. P. Etal O-3-21769 | Hilcorp Energy Company only | Franks, NW. (8900) | Galveston | 2 | 698K | 340K | Jan 1993 – Dec 2010 |
| State Tract 352 G-3-170229 | Transtexas Gas Corporation only | Eagle Bay (Vicksburg 15750) | Galveston | 1 | 627K | 4.59M | Jun 1998 – Jul 2000 |
| State Tract 331 G-3-183756 | Fieldwood Onshore LLC only | Eagle Bay (Vicksburg) | Galveston | 1 | 595K | 3.75M | May 2001 – Jan 2009 |
| State Tract 331 G-3-188919 | Talos QN Exploration LLC only | Eagle Bay (Vicksburg 15750) | Galveston | 1 | 566K | 3.05M | Mar 2002 – Dec 2012 |
| Moody Estate Trustee O-3-21166 | Sandpoint Texas LLC only | Sweetwater Lake (S-1) | Galveston | 2 | 492K | 186K | Jan 1993 – Apr 2026 |
| Bruce G-3-182881 | Cimarex Energy Co. of Colorado only | Alta Loma, NE. (S Sand) | Galveston | 1 | 472K | 6.81M | Nov 2000 – Sep 2007 |
| Tacquard G-3-201777 | Hilcorp Energy Company only | Alta Loma, NE. (U. Mdl. Andrau) | Galveston | 1 | 438K | 7.29M | Aug 2003 – Apr 2026 |
| Trust O-3-21999 | Hilcorp Energy Company only | Franks, NW. (8900) | Galveston | 3 | 435K | 367K | Apr 1993 – Jun 2021 |
| C. E. Franks Gas Unit O-3-24409 | Hilcorp Energy Company only | Franks (Banfield) | Galveston | 1 | 419K | 1.57M | Aug 2003 – Jun 2011 |
| State Tract 330 Gas Unit G-3-234082 | Fieldwood Onshore LLC only | Eagle Bay (Vicksburg) | Galveston | 1 | 413K | 6.8M | Jun 2007 – Nov 2011 |
| Cade, E. Ker -a- R/a -A- O-3-2103 | Sandpoint Texas LLC only | High Island | Galveston | 16 | 377K | 239K | Jan 1993 – Apr 2026 |
| Camp Wallace O-3-24461 | Houston Oil Prod Enterprises,inc only | Franks, NW. (8900) | Galveston | 1 | 324K | 109K | Dec 2003 – Apr 2026 |
| Eagle Bay Gas Unit G-3-186891 | Talos QN Exploration LLC only | Eagle Bay (Vicksburg) | Galveston | 1 | 323K | 3.14M | Nov 2001 – Mar 2015 |
| Obrien, E., Unit 6 O-3-7174 | Big Lake Corporation only | High Island | Galveston | 2 | 301K | 175K | Jan 1993 – Mar 2026 |
| Cade, E. Ker -a- R/a -C- O-3-2105 | Sandpoint Texas LLC only | High Island | Galveston | 5 | 284K | 47.9K | Jan 1993 – Feb 2026 |
| State Tract 331 G-3-168876 | Transtexas Gas Corporation only | Eagle Bay (Vicksburg) | Galveston | 1 | 279K | 854K | Mar 1998 – Mar 1999 |
| Stewart, Maco O-3-4721 | Progenies Operating LLC only | Gillock (Big Gas) | Galveston | 6 | 268K | 267K | Jan 1993 – Mar 2014 |
| Stewart, Maco -B- 280 O-3-1634 | Sawtooth Operating Co., Inc. only | Gillock (Big Gas) | Galveston | 6 | 263K | 188K | Jan 1993 – Nov 2018 |
| State Tract 345 G-3-224870 | Galveston Bay Operating Co LLC only | Half Moon Shoal (Frio-B) | Galveston | 1 | 261K | 787K | Jul 2006 – Jul 2009 |
| Zinn Unit O-3-23010 | North Lake Resources LLC only | Pabst (9200) | Galveston | 1 | 258K | 238K | Apr 1996 – Aug 2022 |
| Moody National Bank O-3-21298 | Hilcorp Energy Company only | Franks, NW. (8900) | Galveston | 1 | 239K | 144K | Jan 1993 – Mar 2006 |
| Bruce O-3-19073 | Gasper Rice Resources, Ltd. only | Alta Loma, NE. (U. Mdl. Andrau) | Galveston | 1 | 236K | 3.05M | Jan 1993 – Dec 2016 |
| McNeill "B" O-3-12346 | Sandpoint Texas LLC only | High Island | Galveston | 3 | 228K | 51 | Jan 1993 – Apr 2026 |
| William Rubel G-3-287938 | Hilcorp Energy Company only | Sarah White, East (9200) | Galveston | 1 | 226K | 434K | Aug 2019 – Apr 2026 |
| Emma Ruege Oil Unit O-3-16847 | Tema Oil and Gas Company only | Hastings,s.e.(f-46 Seg,b Upper) | Galveston | 1 | 225K | 250K | Jan 1993 – Jul 2002 |
| Blake, John et Al O-3-11529 | Hilcorp Energy Company only | Alta Loma, S. (Big Gas SD) | Galveston | 1 | 224K | 507K | Jan 1993 – Apr 2026 |
| Pabst-Wilkens O-3-22869 | Home Petroleum Corp. only | Pabst (9200) | Galveston | 2 | 220K | 162K | Oct 1995 – Oct 2019 |
| Roberts & Mueller O-3-7295 | Big Lake Corporation only | High Island | Chambers | 8 | 215K | 80.4K | Jan 1993 – Mar 2026 |
| Thos. Alexander Unit O-3-22287 | Hilcorp Energy Company only | Franks, NW. (8900) | Galveston | 1 | 209K | 114K | Jan 1994 – Nov 2008 |
| Huff "A" O-3-19244 | Dune Operating Company only | Hitchcock, NE. (Frio 9100) | Galveston | 1 | 204K | 2.69M | Jan 1993 – Apr 2013 |
| Smith, George E. -B- R/a -A- O-3-2119 | Sandpoint Texas LLC only | High Island | Galveston | 7 | 201K | 4.82K | Jan 1993 – Feb 2026 |
| Cortese Unit O-3-22221 | El Tres Exploration only | Franks (Schenck Sand) | Galveston | 1 | 196K | 302K | Aug 1993 – Jun 1998 |
| Tnct G-3-175699 | Alta Mesa Services, LP only | Gillock, East (Big Gas) | Galveston | 1 | 186K | 8.9M | Aug 1999 – Nov 2006 |
| Tibaldo, Louis O-3-15621 | Womack Operating, LLC. only | Tibaldo (Schenck Sd. Upper) | Galveston | 2 | 181K | 249K | Jan 1993 – Mar 2023 |
| Bruce Gas Unit G-3-235323 | Gasper Rice Resources, Ltd. only | Alta Loma, W. (Weiting a, Lower) | Galveston | 1 | 180K | 1.49M | Jan 2008 – Jan 2017 |
| State - Kohfeldt Unit O-3-1648 | Promise Energy Operations, LLC only | Gillock (East Segment) | Galveston | 10 | 175K | 230K | Jan 1993 – Dec 2019 |
| Houston Farms O-3-22956 | Reef Exploration, L.P. only | Longhorn Ranch (Sarah) | Galveston | 1 | 170K | 66K | Nov 1995 – Nov 2001 |
| Obrien, Erin, Etal, Unit 1 O-3-6121 | Big Lake Corporation only | High Island | Galveston | 2 | 167K | 68.9K | Jan 1993 – Dec 2016 |
| Bobbie Gas Unit G-3-272254 | Hilcorp Energy Company only | Alta Loma, S. (Tacquard) | Galveston | 1 | 166K | 2.82M | Jan 2014 – Jul 2017 |
| Smith, George E. -a- R/a -A- O-3-2117 | Sandpoint Texas LLC only | High Island | Galveston | 6 | 165K | 336 | Jan 1993 – Apr 2026 |