| Clemmons G-6-232834 | Etoco, L.P. only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 462K | 1.95M | Nov 2007 – Aug 2026 |
| Clements, Hally et Al G-6-215639 | Burk Royalty Co., Ltd. only | Brookeland (Austin Chalk, 8800) | Tyler | 1 | 300K | 1.17M | Apr 2001 – Aug 2026 |
| Clemens Unit G-6-145228 | Sulphur River Exploration, Inc. only | Gilmer(jurassic) | Upshur | 1 | 89.5K | 6.5M | Apr 1993 – Aug 2026 |
| Durkee Gas Unit #1 G-6-17052 | T W Clemons Operating Co., LLC only | Woodlawn (Pettit) | Harrison | 1 | 79.4K | 662K | Aug 1994 – Aug 2026 |
| Clemens Unit G-6-145268 | Sulphur River Exploration, Inc. only | Gilmer(jurassic) | Upshur | 1 | 76.8K | 5.75M | Apr 1993 – Aug 2026 |
| Durkee Gas Unit #1 G-6-227604 | T W Clemons Operating Co., LLC only | Woodlawn (Pettit) | Harrison | 1 | 71.4K | 458K | Feb 2007 – Aug 2026 |
| Clemens Unit G-6-161359 | Sulphur River Exploration, Inc. only | Gilmer(jurassic) | Upshur | 1 | 47.2K | 3.44M | Nov 1996 – Aug 2026 |
| McLemore A-232 G-8-152239 | Shaida, John H. only | Shackelford County Regular (Gas) | Shackelford | 1 | 42.9K | 95.9K | Jun 1994 – Aug 2026 |
| Cook-Clemons GU G-4-185342 | Merit Energy Company only | Monte Christo, N. (Vicksburg T) | Hidalgo | 1 | 39.6K | 5.38M | Jun 2001 – Mar 2021 |
| Frank Davis Estate Gas Unit #2 G-6-17050 | T W Clemons Operating Co., LLC only | Woodlawn (Pettit) | Harrison | 1 | 33.5K | 473K | Sep 2001 – Aug 2026 |
| Cook-Clemons GU G-4-187054 | El Paso E & P Company, L. P. only | Monte Christo, N. (Vicksburg T) | Hidalgo | 1 | 33.3K | 2.68M | Sep 2001 – Jan 2008 |
| Clemens Unit G-6-74485 | Sulphur River Exploration, Inc. only | Gilmer(jurassic) | Upshur | 1 | 32.2K | 3.39M | by Jan 1993 – Mar 2023 |
| Doby-Clemens (Alloc) G-6-282487 | Dallas Production Company LLC only | Willow Springs (Cotton Valley) | Gregg | 1 | 30.6K | 3.16M | Mar 2017 – Aug 2026 |
| Cook-Clemons GU G-4-188960 | Merit Energy Company only | Monte Christo, N. (Vicksburg Q) | Hidalgo | 1 | 27.1K | 4.29M | Nov 2001 – Aug 2026 |
| Flewellen-Clemens (Alloc) G-6-282545 | Dallas Production Company LLC only | Willow Springs (Cotton Valley) | Gregg | 1 | 26.4K | 3.66M | Mar 2017 – Aug 2026 |
| Arrington-Clemens Gas Unit G-6-169282 | Sulphur River Exploration, Inc. only | Gilmer(jurassic) | Upshur | 1 | 25.5K | 2.18M | Jul 1998 – Aug 2026 |
| Cook-Clemons Gas Unit G-4-195466 | Merit Energy Company only | Monte Christo, N. (Vicksburg T) | Hidalgo | 1 | 23.8K | 3.47M | Jun 2003 – Aug 2026 |
| Frank Davis Estate Gas Unit #2 G-6-278342 | T W Clemons Operating Co., LLC only | Woodlawn (Pettit) | Harrison | 1 | 22.5K | 127K | May 2015 – Aug 2026 |
| Clemens Unit G-6-186537 | Sulphur River Exploration, Inc. only | Gilmer(jurassic) | Upshur | 1 | 21.6K | 2.89M | Oct 2001 – Aug 2026 |
| Frank Davis Estate Gas Unit #2 G-6-280069 | T W Clemons Operating Co., LLC only | Woodlawn (Pettit) | Harrison | 1 | 20.4K | 49.7K | Jul 2015 – Aug 2026 |
| Cook-Clemons GU G-4-183731 | Merit Energy Company only | Monte Christo, N. (Vicksburg T) | Hidalgo | 1 | 19.8K | 5.23M | Apr 2001 – Aug 2022 |
| Cook-Clemons GU G-4-181805 | Merit Energy Company only | Monte Christo, N(vicksburg T LO) | Hidalgo | 1 | 19.5K | 6.4M | Dec 2000 – Jun 2009 |
| Durkee Gas Unit #1 G-6-74649 | T W Clemons Operating Co., LLC only | Woodlawn (Cotton Valley) | Harrison | 1 | 16.8K | 1.15M | by Jan 1993 – Aug 2026 |
| Clemens State Tract 8 GU G-3-162116 | Rutherford Oil Corporation only | Clemens, SE. (Frio B Fba) | Brazoria | 1 | 16.6K | 257K | Jan 1997 – Apr 1998 |
| Clemens G-6-145701 | Dallas Production, Inc. only | Willow Springs (Cotton Valley) | Gregg | 1 | 15.2K | 1.34M | Jun 1993 – Nov 2014 |
| Clemens G-6-164956 | Dallas Production, Inc. only | Willow Springs (Cotton Valley) | Gregg | 1 | 14.9K | 1.5M | Aug 1997 – Jul 2019 |
| Davis, Frank Estate G/U/ 2 G-6-250623 | T W Clemons Operating Co., LLC only | Woodlawn (Pettit-Page) | Harrison | 1 | 13.8K | 990K | Nov 2009 – Aug 2026 |
| Clemens-Castleberry G-6-292584 | Dallas Production Company LLC only | Willow Springs (Cotton Valley) | Gregg | 1 | 12.7K | 2.21M | Mar 2022 – Aug 2026 |
| Clemens G-6-156403 | Dallas Production, Inc. only | Willow Springs (Cotton Valley) | Gregg | 1 | 12.4K | 1.36M | Nov 1995 – May 2018 |
| Cook-Clemens GU G-4-184780 | El Paso E & P Company, L. P. only | Monte Christo, N. (Vicksburg T) | Hidalgo | 1 | 12.3K | 3.69M | Jul 2001 – May 2008 |
| Clemens G-6-155240 | Dallas Production Company LLC only | Willow Springs (Cotton Valley) | Gregg | 1 | 12.2K | 1.27M | Jul 1995 – Jan 2015 |
| Clemons Gas Unit No. 1 G-4-142267 | El Paso E & P Company, L. P. only | Monte Christo (56-a, N) | Hidalgo | 1 | 12.1K | 1.64M | by Jan 1993 – May 2010 |
| Clemens State Tract 8 Gas Unit G-3-161862 | Rutherford Oil Corporation only | Clemens, SE, (Frio A) | Brazoria | 1 | 11.9K | 172K | Aug 1996 – Aug 1997 |
| Clemens G-6-150918 | Cotton Valley Operations, Inc. only | White Oak (Cotton Valley Sand) | Gregg | 1 | 11.8K | 1.07M | May 1994 – Nov 2000 |
| Clement Unit G-13-273673 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Montague | 1 | 11.3K | 517K | Jan 2011 – Aug 2026 |
| Clemens Unit G-6-48812 | Sulphur River Exploration, Inc. only | Gilmer(jurassic) | Upshur | 1 | 11K | 904K | by Jan 1993 – Aug 2026 |
| Kingstree Ranch G-6-179733 | T W Clemons Operating Co., LLC only | Woodlawn (Cotton Valley) | Harrison | 1 | 10.6K | 654K | Aug 2000 – Jun 2025 |
| Arrington-Clemens Gas Unit G-6-221422 | Sulphur River Exploration, Inc. only | Gilmer(jurassic) | Upshur | 1 | 9.94K | 1.66M | Dec 2005 – Aug 2026 |
| Clemens G-6-185063 | Dallas Production, Inc. only | Willow Springs (Cotton Valley) | Gregg | 1 | 9.81K | 912K | Aug 2001 – Aug 2018 |
| Cook-Clemons GU G-4-191288 | Merit Energy Company only | Monte Christo, N. (Vicksburg Q) | Hidalgo | 1 | 9.54K | 1.8M | May 2002 – Jun 2016 |
| Clemons Gas Unit No. 1 G-4-135811 | Merit Energy Company only | Monte Christo (58,59 Cons.) | Hidalgo | 1 | 9.49K | 2.14M | by Jan 1993 – Jan 2006 |
| Clemens Unit G-6-193397 | Sulphur River Exploration, Inc. only | Gilmer(jurassic) | Upshur | 1 | 9.48K | 953K | Dec 2002 – Jul 2026 |
| Clemens G-6-164429 | Dallas Production, Inc. only | Willow Springs (Cotton Valley) | Gregg | 1 | 9.32K | 1.65M | Feb 1998 – Jun 2018 |
| Clements, S.Q. et Al G-6-131750 | Diversified Production LLC only | Carthage (Travis Peak 6450) | Panola | 1 | 8.89K | 1.13M | by Jan 1993 – Aug 2026 |
| Clements GU1 G-6-270466 | Eqv Operating LLC only | Lansing, N. (Cotton Valley, Lo.) | Harrison | 1 | 8.37K | 2.98M | May 2013 – Aug 2026 |
| Clement Unit G-13-273672 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Montague | 1 | 8.3K | 775K | Jan 2011 – Aug 2026 |
| Clemons Gas Unit No. 1 G-4-226821 | Merit Energy Company only | Monte Christo (56-a, N) | Hidalgo | 1 | 8.06K | 1.34M | Apr 2007 – Aug 2026 |
| Durkee Gas Unit #1 G-6-196713 | T W Clemons Operating Co., LLC only | Woodlawn (Cotton Valley) | Harrison | 1 | 7.48K | 843K | Jun 2003 – Dec 2025 |
| State of Texas No. 49829 Tr. 5 G-3-162627 | Rutherford Oil Corporation only | Clemens, N. (Frio C) | Brazoria | 1 | 7.41K | 2.13M | Mar 1997 – Jun 2002 |
| Durkee Gas Unit #1 G-6-273353 | T W Clemons Operating Co., LLC only | Woodlawn (Pettit-Page) | Harrison | 1 | 7.29K | 295K | Nov 2013 – Aug 2026 |