| E.A. Weinheimer-Grady Trust Unit G-3-139930 | Crimson Exploration Inc. only | Alwan (Cook Mountain) | Wharton | 1 | 24.1K | 534K | Jun 1993 – Mar 2005 |
| Bruce, Nettie C O-13-24039 | R & R Energy, Ltd. only | Cooke County Regular | Cooke | 1 | 24.1K | 1.79K | Jan 1993 – Mar 2026 |
| Cook-Clemons Gas Unit G-4-195466 | Merit Energy Company only | Monte Christo, N. (Vicksburg T) | Hidalgo | 1 | 23.8K | 3.46M | Jun 2003 – Apr 2026 |
| Cook, W. I., Est. -B- /Sec. 90/ O-8-7068 | Stasney Well Service, LLC only | Cook Ranch | Shackelford | 3 | 23.7K | 21 | Jan 1993 – Jan 2009 |
| Highland O-3-25742 | CML Exploration, LLC only | River Bend (Cook Mountain 8650) | Fort Bend | 1 | 23.7K | 79.6K | Sep 2011 – Oct 2013 |
| Cooke, J. W. Unit 2 G-6-181890 | R. Lacy Services, Ltd. only | Carthage (Cotton Valley) | Panola | 1 | 23.7K | 1.35M | Mar 2001 – Aug 2024 |
| Trew, R. W. "D" O-13-28563 | V & H Oil, L.P. only | Cooke County Regular | Cooke | 5 | 23.6K | 16 | May 1993 – Apr 2026 |
| Battery, Otto #2 O-13-28163 | Ski Production, LLC only | Cooke County Regular | Cooke | 4 | 23.6K | 20 | Jan 1993 – Apr 2026 |
| Risinger-Cooke Unit O-3-21796 | Union Pacific Resources Company only | Giddings (Austin Chalk-3) | Brazos | 1 | 23.6K | 31.6K | Jan 1993 – Sep 1994 |
| Dlugosch O-2-11214 | Terrafina Energy, LLC only | Cook, SW. (7250) | De Witt | 2 | 23.6K | 150K | Nov 2013 – Jun 2018 |
| Klement, W. O-13-29478 | Voth Operating, Inc. only | Cooke County Regular | Cooke | 5 | 23.4K | 69 | Feb 1998 – Feb 2004 |
| Ware, Jennie -B- O-13-14070 | Seitz, J. R. & Adam, Ltd. only | Cooke County Regular | Cooke | 1 | 23.1K | 21 | Jan 1993 – Apr 2026 |
| Knauf, Mary, Est. -D- O-13-14902 | V & H Oil, L.P. only | Cooke County Regular | Cooke | 5 | 23K | 940 | Jan 1993 – Apr 2026 |
| Jacobs, Matilda O-2-8820 | Marwell Petroleum Ltd Partnrship only | Mission Valley,w(cook Mountain) | Goliad | 1 | 22.9K | 75.2K | Apr 2003 – May 2011 |
| Dennis O-13-2060 | Davis, Kelly J. only | Cooke County Regular | Cooke | 10 | 22.8K | 21 | Jan 1993 – Apr 2026 |
| Willie Lee Tarver "a" Unit O-3-24976 | Wildfire Energy Operating LLC only | Cooks Point (Woodbine) | Burleson | 1 | 22.7K | 5.54K | Mar 2007 – May 2024 |
| Windham "164" O-8-27795 | Tracker Mineral only | Durango (Cook) | Callahan | 2 | 22.7K | 24.3K | Jul 1995 – Apr 2026 |
| Cannon 1569 O-13-28411 | BP Petroleum Operations, LLC only | Cooke County Regular | Cooke | 2 | 22.6K | 152 | Jan 1993 – Mar 2012 |
| Knight, Dr. Marvin P., et Al O-13-13252 | Triple G Well Service, Inc. only | Cooke County Regular | Cooke | 5 | 22.5K | 20 | Jan 1993 – Apr 2026 |
| Bruhlmeyer O-13-29014 | Reed Production, Inc. only | Cooke County Regular | Cooke | 2 | 22.4K | 0 | Jul 1995 – Feb 2013 |
| Starr, W. P. O-13-13734 | BKM Production only | Cooke County Regular | Cooke | 1 | 22.3K | 21 | Jan 1993 – Apr 2026 |
| Culp, William E. -A- O-13-17324 | Ford, R. J. Inc. only | Cooke County Regular | Cooke | 1 | 22.2K | 21 | Jan 1993 – Apr 2026 |
| Field & Bowers "B" O-13-28458 | Bayer, Frances E. Rev Liv Trust only | Cooke County Regular | Cooke | 2 | 22.2K | 22 | Jan 1993 – Jan 2016 |
| Huggins, Annie O-13-15481 | Service Clearing Corp. only | Cooke County Regular | Cooke | 1 | 22.2K | 21 | Jan 1993 – Jul 2010 |
| Wisdom, H. O-13-14594 | Atex Exploration & Operating Co. only | Cooke County Regular | Cooke | 1 | 22.2K | 21 | Jan 1993 – Apr 2026 |
| Tuer-Mitchell Unit G-3-177617 | Faulconer Energy, LLC only | Raywood, W. (Cook Mountain) | Liberty | 1 | 22.2K | 4.74M | Apr 2000 – Apr 2026 |
| Trubenbach, W. M. O-13-2252 | Xyz Oil, Inc. only | Cooke County Regular | Cooke | 16 | 22.1K | 252 | Jan 1993 – Apr 2026 |
| Bond, G. G. O-13-30346 | Reed Production, Inc. only | Cooke County Regular | Cooke | 4 | 22K | 0 | Aug 2004 – Apr 2026 |
| Denson G-6-156934 | Cook Exploration Co. only | Willow Springs, N. (Pettit) | Gregg | 1 | 22K | 794K | Dec 1995 – Apr 2026 |
| Meador, S. D. O-13-2026 | Mountain Creek Oil Company, Inc. only | Cooke County Regular | Cooke | 15 | 22K | 17 | Jan 1993 – Apr 2026 |
| Seiffert G-3-245828 | Faulconer, Vernon E., Inc. only | Rankin (Cook Mtn. IV) | Harris | 1 | 22K | 1.53M | Aug 2008 – Dec 2014 |
| Bussey, Jonnie G-6-86300 | Cook Exploration Co. only | Lansing, N. (Cotton Valley, Lo.) | Harrison | 1 | 21.8K | 1.32M | Jan 1993 – Apr 2026 |
| Wendt, Louise O-4-12078 | 3D Oil Company, LLC only | Government Wells, N. ( Cook MTN) | Duval | 1 | 21.5K | 144 | Jan 1993 – Dec 2025 |
| Milky Way G-3-299005 | Gordy Oil Company only | Rankin (Cook Mtn. IV) | Harris | 1 | 21.3K | 994K | Mar 2025 – Apr 2026 |
| Cook Ranch "61" O-8-30129 | Stasney Well Service, LLC only | Cook Ranch | Shackelford | 9 | 21.3K | 865 | Jun 2008 – Apr 2026 |
| Stasney Ranch 62 O-8-32169 | Stasney Well Service, LLC only | Cook Ranch | Shackelford | 15 | 21.2K | 0 | Aug 2018 – Apr 2026 |
| Mueller G-3-207013 | CML Exploration, LLC only | Rosenberg, W. (LWR Cook MTN) | Fort Bend | 1 | 21.2K | 1.73M | Nov 2004 – May 2025 |
| Judy, A., -A- O-13-2001 | CR Reed Production, Inc. only | Cooke County Regular | Cooke | 9 | 21.1K | 281 | Jan 1993 – Oct 2024 |
| Raeke Cook AW O-1-21794 | Auterra Operating, LLC only | Eagleville (Eagle Ford-1) | Gonzales | 1 | 21.1K | 0 | Jul 2025 – Apr 2026 |
| Hicks 187 O-8-31823 | Double M Petroproperties, Inc. only | Hat Top Mountain, N. (Cook Lime) | Nolan | 1 | 21K | 4.77K | Jun 2015 – Apr 2026 |
| Gohlke Heirs O-2-8037 | Laguna Oil & Gas Corp. only | Poehler (Cook Mt.) | Goliad | 1 | 21K | 14.6K | Feb 1995 – Sep 2012 |
| Nail Ranch "20" O-8-29270 | Daylight Petroleum LLC only | Jumpstart, N. (Upper Cook) | Shackelford | 2 | 20.9K | 0 | Jul 2003 – Apr 2026 |
| Bayer, John O-13-2007 | Barnhill, Monte only | Cooke County Regular | Cooke | 1 | 20.8K | 31 | Jan 1993 – Apr 2026 |
| Cooke, C.N. B G-4-144257 | Hunt Oil Company only | Doughty (8550) | Nueces | 1 | 20.8K | 237K | Jan 1993 – Mar 1995 |
| Fucik, David G-3-132847 | Faulconer Energy, LLC only | Ammann, South (Cook Mountain) | Wharton | 1 | 20.7K | 6.03M | Jan 1993 – Apr 2026 |
| Cooke, C.N. Unit O-4-12117 | Hunt Oil Company only | Doughty (Frio 7670) | Nueces | 1 | 20.7K | 82.1K | Jan 1993 – Oct 1996 |
| Cook-Throckmorton O-13-5550 | Os&s Operating Inc. only | Wichita County Regular | Wichita | 3 | 20.5K | 144 | Jan 1993 – Mar 2026 |
| Bindel, P. O-13-11088 | WFW Production Company, Inc. only | Cooke County Regular | Cooke | 5 | 20.4K | 21 | Jan 1993 – Apr 2026 |
| Cook Ranch 113 O-8-30273 | Stasney Well Service, LLC only | Cook Ranch | Shackelford | 7 | 20.3K | 2.42K | Jan 2009 – Oct 2020 |
| Franke O-2-8366 | Coastline Exploration, Inc. only | Brandt, S. (Cook Mt. 5200) | Goliad | 1 | 20K | 88.5K | Mar 1998 – Mar 2002 |