| Buckingham G-14-265496 | Mustang Fuel Corporation only | Mills Ranch (Des Moines) | Wheeler | 1 | 198K | 4.76M | Apr 2011 – Apr 2026 |
| Buckingham G-14-269034 | Mustang Fuel Corporation only | Mills Ranch (Des Moines) | Wheeler | 1 | 161K | 4.73M | May 2012 – Apr 2026 |
| Cunningham Gas Unit G-2-159169 | Gruy Petroleum Management Co. only | A-B-R (Mackhank 8500) | Goliad | 1 | 36.7K | 1.45M | May 1996 – Jul 2002 |
| Dillingham Unit G-3-152688 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Washington | 1 | 18.4K | 1.75M | Dec 1994 – Apr 2026 |
| Winningham, Garland G-6-129680 | Valence Operating Company only | Percy Wheeler (Travis Peak) | Cherokee | 1 | 14.9K | 675K | Jan 1993 – Oct 2016 |
| Buckingham G-14-266305 | Mustang Fuel Corporation only | Mills Ranch (Des Moines) | Wheeler | 1 | 14.1K | 418K | Jan 2011 – Apr 2026 |
| Cunningham G-2-197435 | Nog Production & Operating LLC only | Marshall (Middle Wilcox) | Goliad | 1 | 13.5K | 668K | Jul 2003 – Mar 2024 |
| Buckingham G-14-184956 | Mustang Fuel Corporation only | Mills Ranch (Des Moines) | Wheeler | 1 | 12.9K | 429K | Sep 2000 – May 2019 |
| Buckingham 9 G-14-258080 | Unbridled Resources, LLC only | Frye Ranch (Consolidated) | Wheeler | 1 | 12.1K | 1.17M | Jan 2010 – Apr 2026 |
| Cunningham Gas Unit G-2-137581 | Parker & Parsley Producing L.P. only | Muy Bueno (2ND Massive) | Goliad | 1 | 11.8K | 739K | Jan 1993 – Mar 1996 |
| New Birmingham "B" Gas Unit #2 G-6-154154 | Burk Royalty Co., Ltd. only | White Oak Creek (Travis Peak) | Cherokee | 1 | 9.7K | 3.1M | Feb 1995 – Apr 2026 |
| Cunningham G-6-246142 | Eqv Operating LLC only | Beckville (Cotton Valley) | Panola | 1 | 9.28K | 931K | Oct 2008 – Apr 2026 |
| Cunningham G-6-237284 | Eqv Operating LLC only | Beckville (Cotton Valley) | Panola | 1 | 9.1K | 1.29M | May 2008 – Apr 2026 |
| Cunningham G-6-250324 | Eqv Operating LLC only | Beckville (Cotton Valley) | Panola | 1 | 6.84K | 859K | Jul 2009 – Nov 2022 |
| New Birmingham "B" Gas Unit 2 G-6-89097 | Burk Royalty Co., Ltd. only | White Oak Creek (Travis Peak) | Cherokee | 1 | 5.24K | 1.57M | Jan 1993 – Apr 2026 |
| Fillingham 88 G-14-202314 | Unbridled Resources, LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 5.22K | 452K | May 2004 – Oct 2023 |
| Cunningham G-6-253477 | Eqv Operating LLC only | Beckville (Cotton Valley) | Panola | 1 | 4.78K | 1.22M | Sep 2009 – Apr 2026 |
| New Birmingham "B" Gas Unit #3 G-6-150947 | Burk Royalty Co., Ltd. only | White Oak Creek (Travis Peak) | Cherokee | 1 | 4.53K | 2.65M | Jul 1994 – Apr 2026 |
| New Birmingham "B" Gas Unit #1 G-6-151160 | Burk Royalty Co., Ltd. only | White Oak Creek (Travis Peak) | Cherokee | 1 | 4.3K | 2.22M | Aug 1994 – Mar 2024 |
| New Birmingham "B" Gas Unit #1 G-6-163077 | Burk Royalty Co., Ltd. only | White Oak Creek (Travis Peak) | Cherokee | 1 | 4K | 1.99M | Mar 1997 – Apr 2026 |
| Cunningham, Mary J. G-3-210920 | Foundation Energy Management LLC only | Silsbee, North (Yegua 2C) | Hardin | 1 | 3.85K | 55.4K | Aug 2005 – Jan 2013 |
| New Birmingham "B" Gas Unit 2 G-6-76639 | Burk Royalty Co., Ltd. only | White Oak Creek (Rodessa) | Cherokee | 1 | 3.72K | 4.26M | Jan 1993 – Apr 2026 |
| Cunningham "A" G-6-159223 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 3.71K | 1.97M | May 1996 – Apr 2026 |
| Cunningham, Mary J. G-3-194098 | Merit Energy Company only | Silsbee, North (Yegua 4-G) | Hardin | 1 | 3.64K | 101K | Mar 2003 – Apr 2005 |
| New Birmingham "B" Gas Unit #1 G-6-172058 | Burk Royalty Co., Ltd. only | White Oak Creek (Travis Peak) | Cherokee | 1 | 3.57K | 2.41M | Jan 1999 – Apr 2026 |
| New Birmingham "B" Gas Unit #3 G-6-151143 | Burk Royalty Co., Ltd. only | White Oak Creek (Travis Peak) | Cherokee | 1 | 3.57K | 3.75M | Aug 1994 – Apr 2026 |
| Cunningham "A" G-6-186949 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 3.46K | 1.78M | Dec 2001 – Apr 2026 |
| New Birmingham GU 2 G-6-159163 | Headington Oil Company, L.P. only | White Oak Creek (Travis Peak) | Cherokee | 1 | 3.43K | 1.41M | Jun 1996 – Apr 2004 |
| Buckingham G-14-236920 | Formentera Operations LLC only | Stiles Ranch (Granite Wash Cons) | Wheeler | 1 | 3.31K | 1.14M | Apr 2008 – Apr 2026 |
| Willingham Family Trust G-13-224762 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Palo Pinto | 1 | 3.22K | 251K | Oct 2006 – Sep 2015 |
| Cunningham "A" G-6-180239 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 3.16K | 1.22M | Nov 2000 – Jan 2020 |
| New Birmingham "B" Gas Unit 2 G-6-148909 | Burk Royalty Co., Ltd. only | White Oak Creek (Travis Peak) | Cherokee | 1 | 3.15K | 1.46M | Feb 1994 – Apr 2025 |
| Cottingham G-4-288661 | Cimarron Engineering, LLC only | Agua Dulce (Consolidated Frio) | Nueces | 1 | 3.04K | 228K | Nov 2019 – Aug 2021 |
| Cunningham -A- G-6-92403 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 2.71K | 1.54M | Jan 1993 – Sep 2020 |
| Cunningham G-2-286542 | Nog Production & Operating LLC only | A-B-R (Mackhank 8500) | Goliad | 1 | 2.64K | 147K | Sep 2018 – Mar 2026 |
| New Birmingham "B" Gas Unit #1 G-6-162112 | Burk Royalty Co., Ltd. only | White Oak Creek (Travis Peak) | Cherokee | 1 | 2.51K | 3.45M | Oct 1996 – Apr 2026 |
| State University EY G-9-149363 | Extex Operating Company only | Ingham (Canyon 6400) | Crockett | 1 | 2.46K | 650K | Apr 1994 – Apr 2026 |
| Cunningham "A" G-6-158877 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 2.45K | 1.73M | Mar 1996 – Apr 2026 |
| New Birmingham "B" Gas Unit #2 G-6-177169 | Burk Royalty Co., Ltd. only | White Oak Creek (Travis Peak) | Cherokee | 1 | 2.42K | 1.56M | Jan 2000 – Apr 2026 |
| University 14-29 "A" G-9-132412 | WTG Exploration only | Ingham (Canyon 6400) | Crockett | 1 | 2.39K | 407K | Jan 1993 – Apr 2026 |
| New Birmingham "B" Gas Unit #2 G-6-158887 | Burk Royalty Co., Ltd. only | White Oak Creek (Travis Peak) | Cherokee | 1 | 2.35K | 517K | Feb 1996 – Dec 2016 |
| Cunningham "A" G-6-109974 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 2.29K | 1.64M | Jan 1993 – Aug 2022 |
| New Birmingham "B" Gas Unit #1 G-6-158409 | Burk Royalty Co., Ltd. only | White Oak Creek (Travis Peak) | Cherokee | 1 | 2.26K | 2.17M | Feb 1996 – Apr 2026 |
| New Birmingham Gas Unit G-6-272623 | Atlas Operating LLC only | Sym-Jac, West (Hosston) | Cherokee | 1 | 2.17K | 138K | Mar 2014 – Mar 2026 |
| Cox Estate -A- G-9-18943 | HRB Operating Company, Inc. only | Ingham (Devonian) | Crockett | 1 | 2.11K | 1.14M | Jan 1993 – Oct 2023 |
| Cunningham, Mary J. G-3-151957 | Merit Energy Company only | Silsbee, North (Yegua 8) | Hardin | 1 | 2.09K | 25K | Jun 1994 – Dec 1996 |
| State University "EX" G-9-112653 | Extex Operating Company only | Ingham (Canyon 6400) | Crockett | 1 | 1.78K | 439K | Jan 1993 – Apr 2026 |
| Ingham Estate G-9-106196 | Thompson, J. Cleo only | Ingham (Devonian) | Crockett | 1 | 1.71K | 1.37M | Jan 1993 – Aug 2012 |
| Cunningham "A" G-6-83503 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 1.67K | 893K | Jan 1993 – Apr 2015 |
| State University Et G-9-107799 | Hillin, T. A. only | Ingham (Canyon 6400) | Crockett | 1 | 1.63K | 234K | Jan 1993 – Aug 2003 |