| Dennis Reitz O-2-9228 | Nadsoilco LLC only | Gottschalt (Cook Mountain) | Goliad | 1 | 2.39K | 0 | Jun 2008 – Dec 2011 |
| Cooke, C. N. O-4-11839 | Hunt Oil Company only | Doughty (Frio 8730) | Nueces | 1 | 2.37K | 5.25K | Feb 1993 – Nov 1993 |
| McKeichan, Will "A" O-8-4828 | Fourcooks Oil & Gas, LLC only | Throckmorton County Regular | Throckmorton | 6 | 2.37K | 43 | Jan 1993 – Apr 2026 |
| McCorkle, George H. O-13-17926 | Maverick Production only | Cooke County Regular | Cooke | 1 | 2.37K | 19 | Jan 1993 – Dec 1996 |
| Cook Ranch 112 H O-8-29423 | Stasney Well Service, LLC only | Cook Ranch | Shackelford | 1 | 2.35K | 0 | May 2004 – Dec 2013 |
| D. Duderstadt Unit G-2-165316 | Coastline Exploration, Inc. only | Brandt (Cook Mountain) | Goliad | 1 | 2.34K | 103K | Oct 1997 – Nov 1998 |
| Las Arenas G-2-294129 | Sue-Ann Operating, L.C. only | Dinero, W. (Cook Mountain) | Live Oak | 1 | 2.34K | 225K | Dec 2022 – Apr 2026 |
| Carter Investment Company G-3-5696 | Lindow Oil & Gas, LLC only | Clodine, North (Cook Mtn. 8300) | Harris | 1 | 2.33K | 1.43M | Jan 1993 – Mar 2026 |
| Ramsey, Ralph W. O-2-8983 | Abel, M.D. Co. only | A-B-R (Cook Mountain) | Goliad | 1 | 2.32K | 63.6K | Jun 2005 – Apr 2015 |
| Johnson, Mary G-4-226820 | Cal-Tex Exploratn & Prod Co LLC only | McCook, SE (Vicksburg Deep) | Hidalgo | 1 | 2.31K | 312K | Apr 2007 – May 2025 |
| Harris, Tom et Al O-13-27978 | Breeze Oil, LLC only | Cooke County Regular | Cooke | 2 | 2.29K | 198 | Jan 1993 – Jan 2006 |
| Bell, Lucille K. O-13-22749 | Brammer Petroleum, Inc. only | Cooke County Regular | Cooke | 1 | 2.28K | 17 | May 1993 – Oct 1996 |
| Cook Ranch 85S O-8-31662 | Stasney Well Service, LLC only | Cook Ranch | Shackelford | 2 | 2.27K | 0 | Oct 2014 – Sep 2021 |
| Edwards, Opal O-8-23869 | Sams Energy, Inc. only | Doug Cook (Duffer) | Eastland | 1 | 2.27K | 15.1K | Jan 1993 – May 1997 |
| Stacey -B- O-13-2247 | H and H Prod. Co. only | Cooke County Regular | Cooke | 9 | 2.25K | 20 | Jan 1993 – Jan 2004 |
| Condron, Ruth O-8-26574 | Fourcooks Oil & Gas, LLC only | Throckmorton County Regular | Throckmorton | 1 | 2.25K | 4.09K | Jan 1994 – Feb 2026 |
| Cartwright Ranch G-2-291529 | Royal Production Company, Inc. only | Mount Lucas (Cook Mtn. 5800) | Live Oak | 1 | 2.25K | 331K | Aug 2021 – Apr 2026 |
| Cook O-13-32264 | Cary Oil & Gas, Inc only | Ozie, West (Marble Falls) | Jack | 1 | 2.24K | 50K | Jul 2012 – Dec 2018 |
| Cook Gas Unit G-6-222340 | Fortune Resources LLC only | Blocker (Cotton Valley) | Harrison | 1 | 2.21K | 550K | Jul 2006 – Mar 2026 |
| Hoover O-13-22736 | Biffle, Jimmy Jack only | Cooke County Regular | Cooke | 1 | 2.2K | 19 | Jan 1993 – Sep 2012 |
| Nail 131 (M-J) O-8-18830 | Van Operating, Ltd. only | Nail (Cook, Upper) | Shackelford | 2 | 2.2K | 17 | Jan 1993 – May 1994 |
| Dybala G.U. G-3-255289 | Dallas Petroleum Group, LLC only | Bowmore (Cook Mountain) | Wharton | 1 | 2.19K | 627K | Feb 2010 – Feb 2016 |
| Stasney's Cook Ranch 86S O-8-30939 | Stasney Well Service, LLC only | Cook Ranch (Strawn Sand) | Shackelford | 2 | 2.19K | 0 | Jan 2012 – Dec 2012 |
| Johnson Cook G Unit G-13-233425 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Tarrant | 1 | 2.18K | 1.52M | Mar 2008 – Apr 2026 |
| Thornton, E. L. O-8-18046 | Quantum Investments only | Potosi (Cook Sand) | Taylor | 2 | 2.18K | 21 | Jan 1993 – Feb 1998 |
| Cook-A- Section 116 O-8-24876 | Young, Marshall R., Oil Co. only | Cook Ranch | Shackelford | 5 | 2.16K | 13 | Jan 1993 – May 1995 |
| Miner, M.B. Unit O-13-17636 | Multibrands, Ltd. Co. only | Cooke County Regular | Cooke | 1 | 2.15K | 20 | Jan 1993 – Dec 2001 |
| Johnson Cook I Unit G-13-238408 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Tarrant | 1 | 2.11K | 1.42M | Jun 2008 – Apr 2026 |
| Daws, M. O-8-27022 | Fourcooks Oil & Gas, LLC only | Throckmorton County Regular | Throckmorton | 5 | 2.07K | 166 | Dec 2006 – Apr 2026 |
| Trubenbach, J. F. -B- O-13-2003 | WFW Production Company, Inc. only | Cooke County Regular | Cooke | 6 | 2.06K | 20 | Jan 1993 – Aug 1994 |
| Cook -A- G-14-158688 | Unit Petroleum Company only | Canadian, SE (Douglas) | Hemphill | 1 | 2.05K | 525K | Mar 1996 – Apr 2001 |
| Cook Ranch 111A O-8-32441 | Stasney Well Service, LLC only | Cook Ranch | Shackelford | 3 | 2.01K | 0 | Jul 2022 – Apr 2026 |
| Northington "B" G-3-253402 | Hilcorp Energy Company only | Bernard, W. (Cook Mt. 7800) | Wharton | 1 | 2K | 417K | Aug 2009 – May 2025 |
| Rosenbaum-Suiter et al Gas Unit G-3-208202 | Oblaen Resources LLC only | Beasley, N. (Cook MTN) | Fort Bend | 1 | 1.97K | 97.3K | Jan 2005 – May 2018 |
| Weisman, J. O-13-13024 | Chapman, Woodie Oil only | Cooke County Regular | Cooke | 3 | 1.96K | 88 | Jan 1993 – May 2000 |
| Cartwright Ranch G-2-291594 | Royal Production Company, Inc. only | Mount Lucas (Cook Mtn. 5700) | Live Oak | 1 | 1.96K | 101K | Oct 2021 – Sep 2022 |
| Cook, Louise "A" G-5-140718 | Hilcorp Energy Company only | Bear Grass (Travis Peak) | Leon | 1 | 1.95K | 976K | Jan 1993 – Apr 2026 |
| Westmoreland Unit G-3-176256 | Apache Corporation only | Bernard, W. (Cook Mt. 7800) | Wharton | 1 | 1.93K | 968K | Dec 1999 – Jan 2008 |
| Dlugosch O-2-7469 | Thunderbird Energy, Inc. only | Cook, SW. (7420) | De Witt | 1 | 1.92K | 10.5K | Apr 1995 – Jan 1996 |
| Wolf, H. M. O-13-15281 | V & H Oil, L.P. only | Cooke County Regular | Cooke | 1 | 1.88K | 19 | Jan 1993 – Aug 2006 |
| Cook "a" Sec. 146 O-8-24949 | Young, Marshall R., Oil Co. only | Cook Ranch | Shackelford | 4 | 1.87K | 13 | Jan 1993 – Jan 1994 |
| Cook G-14-159586 | Burlington Resources O & G Co LP only | Canadian, SE (Douglas) | Hemphill | 1 | 1.86K | 692K | Jul 1996 – Jun 2006 |
| Cook Gas Unit G-6-223258 | Fortune Resources LLC only | Blocker (Cotton Valley) | Harrison | 1 | 1.85K | 495K | Jun 2006 – Mar 2026 |
| Faulkner O-13-32765 | Brammer Petroleum, Inc. only | Cooke County Regular | Cooke | 2 | 1.85K | 0 | Jan 2014 – Nov 2019 |
| Flusche, Joseph -A- O-13-1967 | Syntax Energy Corporation only | Cooke County Regular | Cooke | 4 | 1.85K | 19 | Feb 1993 – Apr 2026 |
| Cowherd O-6-14479 | Cook Exploration Co. only | Braden (Travis Peak) | Marion | 1 | 1.84K | 413 | Oct 2005 – Sep 2008 |
| Culpepper G-6-151097 | Cook Exploration Co. only | Willow Springs (Cotton Valley) | Gregg | 1 | 1.84K | 432K | Aug 1994 – Nov 2000 |
| Cooks Point Unit No. 7 O-3-13740 | Exxon Corp. only | Giddings (Austin Chalk-3) | Burleson | 1 | 1.84K | 7.53K | Jan 1993 – Feb 1994 |
| Bayer, M. O-13-10824 | DSB Energy, LLC only | Cooke County Regular | Cooke | 12 | 1.83K | 81 | Jan 1993 – Nov 2006 |
| Brock Unit O-8-6610 | Expanding Energy Corporation only | Brock (Cook Sand) | Callahan | 5 | 1.82K | 48 | Jan 1993 – Sep 1998 |