| Cecil, M. R. G-3-197306 | Samson Lone Star, LLC only | Sour Lake, E. (Kirby FB-A) | Jefferson | 1 | 126K | 4.73M | Aug 2003 – Oct 2010 |
| Cecil Unit G-13-278797 | EOG Resources, Inc. only | Newark, East (Barnett Shale) | Montague | 1 | 48.7K | 522K | Sep 2013 – Apr 2026 |
| Columbus Townsite Gas Unit G-3-226437 | Hurd Enterprises, Ltd. only | Cecil Noble (Wilcox 10,300) | Colorado | 1 | 44.9K | 1.12M | Nov 2006 – Sep 2014 |
| Cecil, M. R. et al Gas Unit G-3-123336 | Acock/Anaqua Operating Co., LP only | Sour Lake, E. (Kirby FB-A) | Hardin | 1 | 44.1K | 833K | Jan 1993 – Aug 2002 |
| 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 |
| Cecil Martin Gas Unit G-6-283801 | Jamex, Inc. only | Overton (Cotton Valley Sand) | Cherokee | 1 | 27.6K | 3.29M | Aug 2017 – Apr 2026 |
| Cook Family Trust G-3-254627 | Vantage Operating, LLC only | Cecil Noble (Wilcox 9325) | Colorado | 1 | 26.4K | 1.15M | Dec 2009 – Mar 2023 |
| 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 |
| Joann G-3-269159 | Akg Operating Company only | Cecil Noble (Wilcox 10,120) | Colorado | 1 | 13.4K | 38.1K | Jan 2012 – Jul 2013 |
| Wegenhoft, John and Ford G-3-73300 | Magnum Producing & Operating Co. only | Cecil Noble (Wilcox 10,120) | Colorado | 1 | 12.5K | 438K | Jan 1993 – Apr 1997 |
| Cecil, M. R. G-3-211571 | Samson Lone Star, LLC only | Sour Lake, E. (Yegua-DF-9) | Jefferson | 1 | 11.1K | 468K | May 2005 – Aug 2007 |
| Greer, Cecil B. Gas Unit G-6-223438 | Soldier Creek Energy, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 7.62K | 898K | Sep 2006 – Apr 2026 |
| Greer, Cecil B. Gas Unit G-6-94961 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 6.52K | 722K | Jan 1993 – Apr 2026 |
| Greer, Cecil B. Gas Unit G-6-228318 | Soldier Creek Energy, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 6.32K | 875K | Feb 2007 – Apr 2026 |
| Columbus Townsite Unit G-3-144825 | Magnum Producing & Operating Co. only | Cecil Noble (Schiller) | Colorado | 1 | 6.07K | 243K | Mar 1993 – Apr 2000 |
| Cecilia -A- G-14-124233 | Phillips Petroleum Company only | Cecilia (Marmaton) | Sherman | 1 | 4.54K | 55.8K | Jan 1993 – Dec 1996 |
| Cecil, M. R. G-3-202201 | Samson Lone Star LP only | Sour Lake, East (Yegua #7-A) | Jefferson | 1 | 4.16K | 788K | Mar 2004 – Jan 2005 |
| Greer, Cecil B. Gas Unit G-6-141438 | Mmgl East Texas III, LLC only | Blocker (Cotton Valley) | Harrison | 1 | 4.12K | 650K | Jan 1993 – Aug 2018 |
| Bullard, Cecil Gas Unit G-13-99686 | Eagleridge Operating, LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 2.88K | 1.62M | Jan 1993 – Apr 2026 |
| Sparks, Cecil GU 1 G-6-237086 | Adamas Energy LLC only | Martinsville (Travis Peak) | Nacogdoches | 1 | 2.76K | 944K | Jun 2008 – May 2022 |
| Sparks, Cecil GU 1 G-6-234271 | Adamas Energy LLC only | Martinsville (Travis Peak) | Nacogdoches | 1 | 2.62K | 887K | Jan 2008 – Jul 2023 |
| Weddington Estate G-6-215542 | Lime Rock Resources III-a, L.P. only | Cecil Cox (Travis Peak) | Angelina | 1 | 2.53K | 874K | Sep 2005 – Jan 2017 |
| Bullard, Cecil G-13-148755 | Scout Energy Management LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 2.4K | 808K | Mar 1994 – Jan 2026 |
| Sparks, Cecil GU 1 G-6-234673 | Aethon Energy Operating LLC only | Martinsville (Travis Peak) | Nacogdoches | 1 | 2.29K | 994K | Jan 2008 – Jun 2022 |
| Barnett, Cecil Gas Unit G-5-284654 | Luminant Mining Company LLC only | Oletha, SW. (Rodessa) | Robertson | 1 | 2.14K | 263K | Jun 2018 – Jul 2019 |
| Sparks, Cecil GU 1 G-6-232926 | Adamas Energy LLC only | Nacogdoches, E. (Pettit) | Nacogdoches | 1 | 2.05K | 466K | Sep 2007 – Sep 2022 |
| Haddox, Cecil F. G-6-109956 | Buffco Production Inc. only | Good Springs (Travis Peak) | Cherokee | 1 | 1.66K | 227K | Jan 1993 – Mar 2023 |
| Sparks, Cecil GU 1 G-6-228328 | Adamas Energy LLC only | Martinsville (Travis Peak) | Nacogdoches | 1 | 1.62K | 530K | Apr 2007 – Aug 2020 |
| Sparks, Cecil GU 1 G-6-238055 | Adamas Energy LLC only | Martinsville (Travis Peak) | Nacogdoches | 1 | 1.49K | 800K | Jul 2008 – Apr 2026 |
| Youens, W. T. Gas Unit G-3-132363 | Hrbacek, Stephen A. Oil & Gas Co only | Cecil Noble (Wilcox 7350) | Colorado | 1 | 1.43K | 77.4K | Jul 1993 – Jun 1995 |
| Sparks, Cecil GU 1 G-6-236139 | Adamas Energy LLC only | Martinsville (Travis Peak) | Nacogdoches | 1 | 1.37K | 405K | Apr 2008 – May 2020 |
| Cecil Harmon G-13-236806 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Erath | 1 | 1.26K | 539K | Dec 2007 – Sep 2024 |
| Harmon, Cecil G-13-236896 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Erath | 1 | 1.11K | 652K | Dec 2007 – Sep 2024 |
| Sparks, Cecil GU 1 G-6-236141 | Adamas Energy LLC only | Martinsville (Travis Peak) | Nacogdoches | 1 | 1.04K | 420K | May 2008 – Oct 2019 |
| Boles, Cecilia G-6-252045 | Merit Energy Company only | Angie (James Lime) | San Augustine | 1 | 1.03K | 2.39M | Jul 2009 – Apr 2026 |
| Weddington Estate G-6-227345 | Lime Rock Resources III-a, L.P. only | Cecil Cox (Travis Peak) | Angelina | 1 | 987 | 489K | Jan 2007 – Jan 2017 |
| Cecil GU 1 G-6-226550 | Texian Operating Company, LLC only | Douglass, W. (Travis Peak) | Nacogdoches | 1 | 914 | 221K | Feb 2007 – Apr 2026 |
| Weddington Estate G-6-227320 | Lime Rock Resources III-a, L.P. only | Cecil Cox (Travis Peak) | Angelina | 1 | 818 | 378K | Nov 2006 – Jan 2017 |
| Wegenhoft, John and Ford G-3-164135 | Magnum Producing & Operating Co. only | Cecil Noble (State) | Colorado | 1 | 720 | 41.3K | May 1997 – Nov 1999 |
| Boles, Cecilia G-6-252048 | Lime Rock Resources III-a, L.P. only | Angie (James Lime) | San Augustine | 1 | 624 | 1.26M | Aug 2009 – Jan 2019 |
| Weddington Estate G-6-227346 | Lime Rock Resources III-a, L.P. only | Cecil Cox (Travis Peak) | Angelina | 1 | 444 | 256K | Feb 2007 – Jan 2017 |
| Bullard, Cecil Gas Unit G-13-28983 | Eagleridge Operating, LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 421 | 75.1K | Jan 1993 – May 2016 |
| Bullard, Cecil G-13-147601 | Scout Energy Management LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 378 | 455K | Oct 1993 – Jan 2026 |
| Pegues, Cecil H. G-13-66034 | Eagleridge Operating, LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 369 | 108K | Jan 1993 – Apr 2026 |
| Weddington Estate G-6-227343 | Lime Rock Resources III-a, L.P. only | Cecil Cox (Travis Peak) | Angelina | 1 | 190 | 74.6K | Dec 2006 – Sep 2008 |
| Barnett, Cecil Gas Unit G-5-197952 | Luminant Mining Company LLC only | Bald Prairie (CV Consolidated) | Robertson | 1 | 161 | 293K | Aug 2003 – Oct 2018 |
| Riffe G-14-125825 | Burk Royalty Co., Ltd. only | Cecilia (Marmaton) | Sherman | 1 | 161 | 2.52M | Jan 1993 – Apr 2026 |
| Cecil G-13-72241 | Wes-Mor Drilling, Inc. only | Graham, NE. (Caddo Lime) | Young | 1 | 135 | 143K | Jan 1993 – Nov 2025 |
| Williams, Cecil G-2-118982 | Cico Oil & Gas Company only | Hope (Wilcox 8800) | Lavaca | 1 | 134 | 3.9K | Jan 1993 – Apr 1996 |
| Uncle Cecil G-9-207147 | WTG Exploration only | Lorles (Wolfcamp) | Terrell | 1 | 75 | 399K | Sep 2004 – Apr 2026 |