| Hankamer G-3-192620 | Silverbrook Operating II LLC only | Raywood (Cook Mtn. 11200) | Liberty | 1 | 280K | 4.03M | Oct 2002 – Aug 2026 |
| Gardendale 1201A G-10-301176 | Continental Resources, Inc. only | Emma (Barnett Shale) | Ector | 1 | 274K | 1.02M | Nov 2024 – Aug 2026 |
| Gardendale 1201C G-10-301156 | Continental Resources, Inc. only | Emma (Barnett Shale) | Ector | 1 | 247K | 1.11M | Jan 2025 – Aug 2026 |
| Gardendale 1201B G-10-301312 | Continental Resources, Inc. only | Emma (Barnett Shale) | Ector | 1 | 226K | 945K | Jan 2025 – Aug 2026 |
| Schwalbe-Sonoma State 120 G-10-300601 | Apache Corporation only | Phantom (Wolfcamp) | Reeves | 1 | 214K | 2.19M | Oct 2017 – Aug 2026 |
| State Tract 308 G-4-179722 | TR Offshore, LLC only | Stedman Island (8120 Frio) | Nueces | 1 | 110K | 1.63M | Oct 2000 – Apr 2025 |
| Petrucha G-3-203950 | Alltex Exploration, Inc. only | Petrucha, N. (12000) | Matagorda | 1 | 85.4K | 2.19M | Jul 2004 – Mar 2025 |
| Winford Extender Caddis G-2-256381 | Arrington Oil&gas Operating LLC only | Brushy Creek (Wilcox -S-1-11200) | De Witt | 1 | 81.1K | 7.23M | Feb 2009 – Jul 2026 |
| Benjamin 120 HMH G-14-270280 | Unbridled Resources, LLC only | Lipscomb, S.E. (Cleveland) | Hemphill | 1 | 78.8K | 380K | Sep 2012 – Aug 2026 |
| Texas State Tract 72 G-4-92868 | Petro-Hunt, L.L.C. only | Marina (11200) | Nueces | 1 | 75.4K | 5.26M | by Jan 1993 – Oct 2012 |
| Hankamer-Pickett G-3-242998 | Silverbrook Operating II LLC only | Raywood (Cook Mtn. 11200) | Liberty | 1 | 57.8K | 1.35M | Dec 2007 – Jul 2012 |
| Callison Gas Unit 1 G-3-206138 | Faulconer Energy, LLC only | Raywood (Cook Mtn. 11200) | Liberty | 1 | 57.7K | 2.47M | Dec 2004 – Jul 2024 |
| Kuester-Ochoa G-2-189325 | Wandoo Energy, LLC only | Brushy Creek (Wilcox -S-1-11200) | Lavaca | 1 | 53.6K | 2.83M | Dec 2001 – Mar 2016 |
| Haley 120 G-14-270972 | Mmgl Txph, LLC only | Mathers Ranch (Granite Wash) | Hemphill | 1 | 53.5K | 1.64M | Jul 2012 – Aug 2026 |
| KMF 120 G-4-186773 | Sarita Energy Resources, Ltd. only | Potrero Toro (Frio G 89) | Kenedy | 1 | 46.7K | 1.59M | Jun 2001 – Aug 2004 |
| State Tract 61 Temporary Unit G-4-185577 | White Marlin Operating Co, LLC only | Marina (11200) | Nueces | 1 | 44.2K | 5.69M | Sep 2001 – Feb 2014 |
| Kingery, F. G. G-2-105343 | Marwell Petroleum Ltd Partnrship only | Harris (Wilcox-12050) | Live Oak | 1 | 40.7K | 1.33M | by Jan 1993 – Jul 2026 |
| Hite G-3-187151 | Forest Oil Corporation only | Wharton, W. (CK MTN 11200) | Wharton | 1 | 38.8K | 157K | Oct 2001 – Jul 2003 |
| Anchor Financial G-3-119286 | Gaither Petroleum Corporation only | Deckers Prairie (Wilcox 9120) | Montgomery | 1 | 38.6K | 2.41M | by Jan 1993 – Jan 2017 |
| Columbus Townsite GU G-3-280210 | Hurd Enterprises, Ltd. only | Cecil Noble (Wilcox 10,120) | Colorado | 1 | 37.5K | 1.48M | Jan 2015 – Apr 2025 |
| Guam G-3-242380 | CML Exploration, LLC only | Raywood (Cook Mtn. 11200) | Liberty | 1 | 32K | 705K | Jul 2008 – Jan 2011 |
| Dickson Foundation G-2-154087 | Hilcorp Energy Company only | Hound Dog (Mid. Wilcox 12000) | Lavaca | 1 | 27.1K | 12.5M | Jan 1995 – Jun 2019 |
| Schoenfeld G-3-101905 | Gaither Petroleum Corporation only | Deckers Prairie (Wilcox 9120) | Montgomery | 1 | 26K | 952K | by Jan 1993 – May 1996 |
| Brushy Creek Gas Unit G-2-188920 | Proline Energy Resources Inc only | Brushy Creek (Wilcox -S-1-11200) | Lavaca | 1 | 23.3K | 1.52M | Feb 2002 – Nov 2022 |
| Killam and Hurd Fee 1200 G-4-204437 | Killam Oil Co., Ltd. only | Umbrella, North (Lobo Cons.) | Webb | 1 | 21.1K | 1.39M | Sep 2004 – Jan 2016 |
| Cullen G-2-137847 | Wofford, C. J. only | Speaks, S.W. (12010) | Lavaca | 1 | 18.7K | 1.38M | by Jan 1993 – Dec 2016 |
| McManus, Carroll G-2-166826 | Flint Oak Energy, LLC only | Brushy Creek (Wilcox -S-1-11200) | De Witt | 1 | 18.7K | 2.62M | Jan 1998 – Aug 2026 |
| Winford Extender Caddis A G-2-264415 | Arrington Oil&gas Operating LLC only | Brushy Creek (Wilcox -S-1-11200) | De Witt | 1 | 18.4K | 1.37M | Mar 2011 – Jul 2026 |
| Bing G-2-133437 | Magnum Producing, LP only | Speaks, S.W. (12010) | Lavaca | 1 | 17.8K | 1.13M | by Jan 1993 – May 2026 |
| Carroll-McManus 3 G-2-172676 | Flint Oak Energy, LLC only | Brushy Creek (Wilcox -S-1-11200) | Lavaca | 1 | 16.8K | 3.23M | Nov 1998 – Aug 2026 |
| Flame Gas Unit G-4-195101 | Continental Trend Resources, Inc only | Petronilla (11200) | Nueces | 1 | 15.8K | 1.22M | Jan 2003 – Dec 2009 |
| Kuester-Ochoa G-2-194603 | Coronado Energy E&P Company, LLC only | Brushy Creek (Wilcox -S-1-11200) | Lavaca | 1 | 15.2K | 709K | Apr 2003 – Mar 2007 |
| Carroll-McManus G-2-176015 | Buffco Production Inc. only | Brushy Creek (Wilcox -S-1-11200) | Lavaca | 1 | 15K | 2.8M | Nov 1999 – Dec 2008 |
| Schramm-Nasa G-2-229795 | Continental Operating Co. only | Holzmark (12000) | Bee | 1 | 14.4K | 1.94M | Aug 2007 – Jun 2013 |
| Allen Gas Unit G-2-154631 | Hilcorp Energy Company only | Hound Dog (Mid. Wilcox 12000) | Lavaca | 1 | 14.1K | 5.18M | Jun 1995 – Jan 2020 |
| Werland, Robert E et Al G-2-241149 | Camden Resources, LLC only | Brushy Creek (Wilcox -S-1-11200) | De Witt | 1 | 13.8K | 671K | Oct 2007 – May 2014 |
| Burns G-2-64667 | Wagner Oil Company only | Clay West (Wilcox 11200) | Live Oak | 1 | 13.8K | 547K | by Jan 1993 – Feb 1996 |
| Joann G-3-269159 | Akg Operating Company only | Cecil Noble (Wilcox 10,120) | Colorado | 1 | 13.4K | 38.1K | Jan 2012 – Jul 2013 |
| Simpson G-2-133215 | Shidler, Mark L., Inc. only | Speaks, S.W. (12010) | Lavaca | 1 | 12.5K | 780K | by Jan 1993 – Jan 2007 |
| Wegenhoft, John and Ford G-3-73300 | Magnum Producing & Operating Co. only | Cecil Noble (Wilcox 10,120) | Colorado | 1 | 12.5K | 438K | by Jan 1993 – Apr 1997 |
| Kuester-Ochoa G-2-191828 | Proline Energy Resources Inc only | Brushy Creek (Wilcox -S-1-11200) | Lavaca | 1 | 12.4K | 489K | Jun 2002 – Dec 2020 |
| Funchess G-3-269146 | Hackberry Oil & Gas LLC only | Long Prairie (12000) | Newton | 1 | 12.4K | 344K | Jun 2012 – Dec 2013 |
| Mitchell -E- G-2-119856 | Dominion Oklahoma Texas E&P, Inc only | Speaks, S.W. (12010) | Lavaca | 1 | 11.8K | 900K | by Jan 1993 – Dec 2001 |
| Hinze Gas Unit G-2-157138 | Bass Enterprises Production Co. only | Hound Dog (Mid. Wilcox 12000) | Lavaca | 1 | 10.7K | 3.04M | Dec 1995 – Jun 2000 |
| State Tract 309 Unit G-4-148527 | Lamar Oil & Gas, Inc. only | Stedman Island (8120 Frio) | Nueces | 1 | 9.66K | 935K | Jan 1994 – Nov 2024 |
| State Tract 520-L NE/4 G-3-94584 | Atinum Energy, Inc. only | El Gordo (12070) | Matgrda IS-LB | 1 | 8.98K | 750K | Nov 1996 – Jun 2010 |
| Steinmann Estate G-2-173808 | Flint Oak Energy, LLC only | Brushy Creek (Wilcox -S-1-11200) | De Witt | 1 | 8.76K | 443K | Mar 1999 – Aug 2026 |
| Carrizo-Apache 1A Unit G-3-212368 | Proline Energy Resources Inc only | Raywood (Cook Mtn. 11200) | Liberty | 1 | 8.37K | 241K | Oct 2005 – Nov 2013 |
| Carroll-McManus 2 G-2-170197 | Flint Oak Energy, LLC only | Brushy Creek (Wilcox -S-1-11200) | De Witt | 1 | 7.45K | 1.74M | Jul 1998 – Aug 2026 |
| Furrh, J. D. Jr. et Al G-6-105723 | TGNR East Texas II LLC only | Elysian (Travis Peak 6120) | Panola | 1 | 6.14K | 678K | by Jan 1993 – Jan 2026 |