| Luke, F. L. -a- Lease O-13-18584 | DSB Energy, LLC only | Cooke County Regular | Cooke | 7 | 3.26K | 87 | Jan 1993 – Nov 2006 |
| Bewley, T. L. O-13-22766 | R & R Energy, Ltd. only | Cooke County Regular | Cooke | 1 | 3.25K | 459 | Jan 1993 – Mar 2026 |
| Shaw-Texaco O-8-28983 | Sojourner Drilling Corporation only | Ledbetter Ranch (Cook Sd.) | Taylor | 2 | 3.25K | 218K | May 2001 – May 2011 |
| Flewellen Gas Unit G-6-176975 | Cook Exploration Co. only | Willow Springs (Travis Peak) | Gregg | 1 | 3.24K | 301K | Feb 2000 – Mar 2009 |
| Cook O-11-64664 | IP Well Service LLC only | Levelland | Cochran | 1 | 3.21K | 112 | Jan 1993 – Sep 2004 |
| Cook Gas Unit O/A G-6-81999 | Trinity Gas Storage, LLC only | Bethel (Rodessa) | Anderson | 1 | 3.2K | 4.07M | Jan 1993 – Jul 2024 |
| Schaefer O-8-22259 | Callarman, David only | Katlaco-Cook (Miss) | Eastland | 1 | 3.18K | 20.9K | Jan 1993 – Apr 2026 |
| Davis, Wirt, Estate O-3-1915 | Crawford Hughes Operating Co. only | Hardin, SW. (Cook Mountain #1) | Liberty | 2 | 3.18K | 29.1K | Jan 1993 – Feb 1995 |
| Stormer, E. T. -B- O-13-9601 | DSB Energy, LLC only | Cooke County Regular | Cooke | 16 | 3.18K | 79 | Jan 1993 – Jul 2012 |
| Cook G-14-189889 | Raydon Exploration, Inc. only | Laketon (Granite Wash Consol.) | Gray | 1 | 3.14K | 325K | Jan 2002 – Sep 2003 |
| Watson, Mary Lue O-13-15140 | J&H Oil Company only | Cooke County Regular | Cooke | 3 | 3.13K | 128 | Jan 1993 – Sep 2018 |
| Tarver, Willie Lee O-3-25041 | Wildfire Energy Operating LLC only | Cooks Point (Woodbine) | Burleson | 1 | 3.11K | 3.47K | Aug 2007 – Mar 2022 |
| Grogan-Blackstone Unit O-3-24983 | Magnum Producing, LP only | McCoy (Cook Mtn.) | Liberty | 1 | 3.1K | 1.45K | Mar 2007 – Jan 2009 |
| Aspen-Newman O-8-27545 | Aspen Exploration, Inc. only | Aspen-Seaman (Cook) | Jones | 1 | 3.05K | 0 | Apr 1995 – Oct 1995 |
| Brownlee Bros.-Cook G-14-22416 | Apache Corporation only | Northrup (Douglas) | Ochiltree | 1 | 3.04K | 820K | Jan 1993 – Sep 2007 |
| Hutcheson G-3-117981 | Smith Petroleum Company only | Martha, East (Cook Mt.-9200 Sd.) | Liberty | 1 | 3.03K | 70.9K | Jan 1993 – Oct 1996 |
| Sivadco "A" O-8-30503 | Leclair Operating, L.L.C. only | Trey (Cook) | Taylor | 1 | 2.97K | 0 | Feb 2010 – May 2015 |
| Egg Unit O-13-22844 | Bend Petroleum Corp. only | Cooke County Regular | Cooke | 1 | 2.97K | 21 | Jan 1993 – Apr 2005 |
| Solomon O-13-2012 | WFW Production Company, Inc. only | Cooke County Regular | Cooke | 8 | 2.91K | 21 | Jan 1993 – Apr 1996 |
| O.B. Ranch G-3-265258 | Hilcorp Energy Company only | Red Bull (Cook Mountain) | Wharton | 1 | 2.89K | 255K | Sep 2011 – Sep 2017 |
| Gardner Unit G-3-208839 | Cobra Oil & Gas Corporation only | Hull South (Cook Mtn. 9700) | Liberty | 1 | 2.88K | 196K | May 2005 – Jan 2006 |
| Reed, Addie Bell et Al O-2-8714 | Estate of James L. Nelson only | Cabeza Creek, S. (Cook MT 5300) | Goliad | 1 | 2.82K | 8.72K | Apr 2002 – Jan 2016 |
| Cunningham O-8-25005 | Cockrell Production Co., Inc. only | Doris (Cook) | Nolan | 1 | 2.8K | 9.28K | Jan 1993 – Feb 1996 |
| Cook Ranch 118H O-8-29422 | Stasney Well Service, LLC only | Cook Ranch | Shackelford | 1 | 2.78K | 0 | Jun 2004 – Jul 2012 |
| Engle, W.D. O-1-9820 | Rickaway Energy, Corp. only | Cooksey | Bexar | 1 | 2.78K | 23 | Jan 1993 – Nov 2012 |
| Jones, G. H. Est. G-6-60485 | Cook Exploration Co. only | Willow Springs (Travis Peak) | Gregg | 1 | 2.74K | 32.1K | Jan 1993 – Jul 1996 |
| Cooke, J. W. Unit 2 G-6-72750 | R. Lacy Services, Ltd. only | Carthage (Cotton Valley) | Panola | 1 | 2.74K | 418K | Jan 1993 – Apr 2026 |
| Diebel Unit G-2-164641 | Coastline Exploration, Inc. only | Brandt (Cook Mountain) | Goliad | 1 | 2.74K | 292K | Aug 1997 – Aug 1999 |
| Meador, S. D. O-13-2230 | Gibbs, Loyd Leasing only | Cooke County Regular | Cooke | 10 | 2.74K | 21 | Jan 1993 – Aug 1998 |
| Nunan G-3-287793 | Nordstrand Engineering, Inc. only | Katy (Cook Mountain 2) | Harris | 1 | 2.72K | 180K | Aug 2019 – Mar 2026 |
| South Beaver Unit O-13-24322 | R & R Energy, Ltd. only | Cooke County Regular | Cooke | 1 | 2.7K | 61 | Jan 1993 – Mar 2026 |
| Cook, Louis N. O-6-15330 | EOG Resources, Inc. only | Austonio, N.E. (Glenrose) | Houston | 1 | 2.62K | 5.41K | Dec 2013 – Jan 2016 |
| Cook -a- Sec. 118 O-8-3569 | Stasney Well Service, LLC only | Cook Ranch | Shackelford | 18 | 2.61K | 13 | Jan 1993 – Jan 1994 |
| Newell "12-2" G-8-150656 | Van Operating, Ltd. only | L. G. Cook (Miss.) | Shackelford | 1 | 2.61K | 236K | Mar 1994 – Aug 2007 |
| Dutton Unit G-3-145577 | Cook Marshall Operating, Inc. only | Needville, South (Frio Jewel) | Fort Bend | 1 | 2.6K | 162K | Apr 1993 – Sep 1994 |
| Cook Ranch 89 O-8-30881 | Stasney Well Service, LLC only | Cook Ranch | Shackelford | 4 | 2.59K | 0 | Mar 2018 – Apr 2026 |
| Arledge A O-8-32843 | Daylight Petroleum LLC only | Jumpstart, N. (Upper Cook) | Nolan | 1 | 2.58K | 13.4K | Feb 2024 – Apr 2026 |
| Austin D G-4-219638 | Hamman Oil & Refining Company only | El Dragon (Cook MTN) | Jim Hogg | 1 | 2.55K | 346K | Apr 2006 – Jul 2012 |
| Dawson Conway 165 "A" O-8-27928 | Stasney, H. R. & Sons, Ltd. only | Dyno (Cook Sd., Lower) | Shackelford | 2 | 2.53K | 0 | Jul 1996 – May 2008 |
| Chicas Locas 1 O-2-10058 | Klotzman, M. S. Exploration Co. only | Mary A. (Cook Mtn. 5625) | Victoria | 1 | 2.52K | 19K | Aug 2011 – Nov 2015 |
| Cook Ranch 63 O-8-32114 | Stasney Well Service, LLC only | Cook Ranch | Shackelford | 3 | 2.52K | 0 | Apr 2017 – Aug 2023 |
| Lambshead G-2 O-8-28254 | Avad Operating, LLC only | Paint Canyon (Cook) | Throckmorton | 1 | 2.52K | 0 | Feb 1998 – Jan 2010 |
| Cooke O-1-15103 | Estacado Energy, LLC only | Tres Encanto (Escondido) | La Salle | 2 | 2.51K | 10.5K | Nov 2009 – Feb 2023 |
| Powers, Emma B. O-13-15322 | Seitz, J. R. & Adam only | Cooke County Regular | Cooke | 1 | 2.5K | 21 | Jan 1993 – Jul 1996 |
| Cooke G-14-68952 | Questar Expl. and Prod. Co. only | Hemphill (Granite Wash.) | Hemphill | 1 | 2.46K | 470K | Jan 1993 – Oct 2008 |
| Intermediar G-4-210434 | Mestena Operating, L.L.C. only | El Dragon (Cook MTN) | Jim Hogg | 1 | 2.45K | 260K | May 2005 – Dec 2012 |
| Arnecke G-2-184379 | Acock Operating Limited only | Weesatche, SW. (Cook Mt. 5300) | Goliad | 1 | 2.42K | 389K | Jun 2001 – Feb 2004 |
| Cahoon Deep Unit G-3-200848 | Proline Energy Resources Inc only | Hull South (Cook Mtn. 9700) | Liberty | 1 | 2.41K | 278K | Feb 2004 – Nov 2013 |
| Johnson Cook I Unit G-13-238403 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Tarrant | 1 | 2.41K | 1.59M | Jun 2008 – Apr 2026 |
| Cook "a", Sec. 141 O-8-25354 | Young, Marshall R., Oil Co. only | Cook Ranch | Shackelford | 4 | 2.39K | 14 | Jan 1993 – Feb 1994 |