| Kerr-McGee G-3-230364 | Wagner Oil Company only | Buye (Lower Cook Mtn. 3) | Liberty | 1 | 643K | 4.19M | May 2007 – Apr 2026 |
| Kerr-McGee G-3-222830 | Ballard Exploration Company,inc. only | Buye (Lower Cook Mtn. 3) | Liberty | 1 | 562K | 10.5M | Jul 2006 – Apr 2026 |
| Agro-Dynamics G-3-189844 | Ballard Exploration Company,inc. only | Devers, SW (Cook Mountain) | Liberty | 1 | 389K | 5.81M | Feb 2002 – Nov 2005 |
| Texaco Fee "B" G-3-212211 | Ballard Exploration Company,inc. only | Raywood (East Cook Mountain) | Liberty | 1 | 381K | 7.31M | Oct 2005 – May 2008 |
| Stone 'B' G-3-262652 | Ballard Exploration Company,inc. only | Cypress Pond (Upper Cook MTN) | Liberty | 1 | 380K | 13.9M | May 2011 – Mar 2026 |
| Cook, J. E. G-3-138877 | Hilcorp Energy Company only | Redmond Creek (Yegua) | Liberty | 1 | 287K | 2.64M | Jan 1993 – Nov 2015 |
| Hankamer G-3-192620 | Silverbrook Operating II LLC only | Raywood (Cook Mtn. 11200) | Liberty | 1 | 280K | 4.03M | Oct 2002 – Apr 2026 |
| Moore's Bluff 'A' G-3-280619 | Ballard Exploration Company,inc. only | Gum Bayou (Cook Mtn., Lo.) | Liberty | 1 | 270K | 6.52M | Sep 2014 – Apr 2026 |
| Texaco Fee "B" G-3-187354 | Ballard Exploration Company,inc. only | Raywood (East Cook Mountain) | Liberty | 1 | 257K | 8.32M | Aug 2001 – Jul 2009 |
| Smith, Wm., Fee O-3-9206 | Quail Creek Oil Corporation only | Hull (Cook Mountain) | Liberty | 4 | 250K | 225K | Jan 1993 – Jul 2006 |
| Bloxsom et Al G-3-192899 | Western Energy Group, LLC only | Raywood (E. Cook Mtn. 12,140) | Liberty | 1 | 235K | 2.01M | Jan 2003 – Mar 2010 |
| Raywood Investments G-3-185403 | Ballard Exploration Company,inc. only | Raywood (East Cook Mountain) | Liberty | 1 | 212K | 3.89M | Jun 2001 – Jan 2006 |
| Texaco Fee "C" G-3-188558 | Ballard Exploration Company,inc. only | Devers, SW (Cook Mountain) | Liberty | 1 | 172K | 8.51M | Nov 2001 – Mar 2011 |
| Abshier G-3-213831 | Ballard Exploration Company,inc. only | Tank Farm (Lwr. Cook Mtn. 3A) | Liberty | 1 | 171K | 8.7M | Mar 2005 – Jul 2021 |
| Levigne G-3-278319 | Ballard Exploration Company,inc. only | Myers Subdiv. (LWR Cook MTN) | Liberty | 1 | 158K | 8.61M | Sep 2014 – Apr 2026 |
| Temple Inland "A" G-3-208692 | Ballard Exploration Company,inc. only | Cypress Pond (Upper Cook MTN) | Liberty | 1 | 144K | 4.66M | Jun 2004 – Sep 2021 |
| Raywood Investments G-3-227054 | Ballard Exploration Company,inc. only | Devers, NW. (Lower Cook Mtn. 1) | Liberty | 1 | 142K | 881K | Mar 2006 – Jul 2008 |
| RDH Farms G-3-231762 | Ballard Exploration Company,inc. only | Devers, SW (Cook Mountain) | Liberty | 1 | 140K | 5.24M | Aug 2007 – Mar 2026 |
| Agro-Dynamics G-3-221506 | Ballard Exploration Company,inc. only | Devers, NW. (Lower Cook Mtn. 1) | Liberty | 1 | 107K | 2.42M | Nov 2005 – Dec 2008 |
| Prospect Company G-3-208397 | Ballard Exploration Company,inc. only | Devers, SW (Cook Mountain) | Liberty | 1 | 104K | 1.09M | Oct 2003 – Nov 2005 |
| Partlow G-3-199887 | Wagner Oil Company only | Liberty, South (Cook Mtn. 3) | Liberty | 1 | 92.1K | 6.54M | Jul 2004 – Apr 2013 |
| Lura Mire "A" G-3-243795 | Ballard Exploration Company,inc. only | Tank Farm (Lwr. Cook Mtn. 3A) | Liberty | 1 | 88.9K | 2.26M | Jul 2008 – Aug 2014 |
| Burns, C. K., Etal O-3-9204 | Quail Creek Oil Corporation only | Hull (Cook Mountain) | Liberty | 1 | 86.1K | 47.4K | Jan 1993 – Jul 2006 |
| Agro-Dynamics Unit G-3-206047 | Ballard Exploration Company,inc. only | Devers, SW (Cook Mountain) | Liberty | 1 | 84.1K | 1.39M | Apr 2004 – Feb 2008 |
| Wirt, Davis G-3-206439 | Hughes Oil Operating, LLC only | Coronado (Cook MTN) | Liberty | 1 | 83K | 5.01M | Dec 2004 – May 2017 |
| Armelin, L., Fee O-3-9209 | Erg Resources, L.L.C. only | Hull (Cook Mountain) | Liberty | 2 | 74.5K | 52.6K | Jan 1993 – Jul 2006 |
| Bingle, W. L. O-3-9201 | Quail Creek Oil Corporation only | Hull (Cook Mountain) | Liberty | 3 | 70.1K | 24.5K | Jan 1993 – Jul 2006 |
| Mallett G-3-177580 | Amrwr, LLC only | Raywood, W. (Cook Mountain) | Liberty | 1 | 67.9K | 11.4M | Jun 2000 – Feb 2020 |
| Kerr-McGee G-3-211128 | Ballard Exploration Company,inc. only | Buye (Lower Cook Mtn. 3) | Liberty | 1 | 65.5K | 2.63M | Jun 2005 – May 2013 |
| Texaco Fee "B" G-3-226462 | Ballard Exploration Company,inc. only | Raywood (East Cook Mountain) | Liberty | 1 | 64.2K | 1.88M | Jan 2007 – Sep 2012 |
| Campbell, Mary G-3-198613 | TC Oil and Gas, LLC only | Hull South (Cook Mtn. 9700) | Liberty | 1 | 62.9K | 3.11M | Jan 2004 – Oct 2020 |
| Ladd G-3-276611 | Ballard Exploration Company,inc. only | Devers, NW. (Lower Cook Mtn. 1) | Liberty | 1 | 61.2K | 831K | Feb 2014 – Apr 2026 |
| Hankamer-Pickett G-3-242998 | Silverbrook Operating II LLC only | Raywood (Cook Mtn. 11200) | Liberty | 1 | 57.8K | 1.35M | Dec 2007 – Jul 2012 |
| Denson G-3-191474 | Young, John H., Inc. only | Liberty, South (Cook Mtn. 3) | Liberty | 1 | 57.8K | 4.19M | Sep 2002 – Apr 2015 |
| Callison Gas Unit 1 G-3-206138 | Faulconer Energy, LLC only | Raywood (Cook Mtn. 11200) | Liberty | 1 | 57.7K | 2.47M | Dec 2004 – Jul 2024 |
| Agro-Dynamics Unit G-3-254378 | Ballard Exploration Company,inc. only | Devers, NW. (Lower Cook Mtn. 1) | Liberty | 1 | 57.3K | 3.32M | Mar 2008 – May 2014 |
| Apache Corporation G-3-185400 | Cobra Oil & Gas Corporation only | Hull, South (Cook MTN, 10700) | Liberty | 1 | 56.4K | 2.02M | Nov 2001 – Sep 2004 |
| Hebert, Emile G-3-166334 | Faulconer Energy, LLC only | Raywood, N. (Cook Mtn., Lower) | Liberty | 1 | 55.2K | 9.45M | Dec 1997 – Apr 2026 |
| Houston Arts Endowment G-3-212221 | Ballard Exploration Company,inc. only | Myers Subdiv. (LWR Cook MTN) | Liberty | 1 | 49.3K | 2.33M | Jan 2005 – Jan 2017 |
| Morris, E. G-3-177513 | Amrwr, LLC only | Raywood (Cook Mtn. 10,850) | Liberty | 1 | 48.6K | 5.33M | Feb 2000 – Feb 2020 |
| Mallet Unit G-3-63775 | Western Energy Group, LLC only | Raywood, W. (Cook Mountain) | Liberty | 1 | 45.5K | 4.62M | Jan 1993 – Feb 2020 |
| Barrett, W J O-3-25039 | Hughes Oil Operating, LLC only | Hardin, SW. (Cook Mountain #1) | Liberty | 1 | 43.2K | 61.2K | Mar 2007 – Mar 2023 |
| Espree G-3-196142 | Silverbrook Operating, LLC only | Hull South (Cook Mtn. 9700) | Liberty | 1 | 42.7K | 2.96M | Jun 2003 – Jun 2006 |
| Farris G-3-178217 | Faulconer Energy, LLC only | Raywood, N. (Cook Mtn., Lower) | Liberty | 1 | 40K | 11.4M | Nov 1999 – Apr 2026 |
| Maxwell, George O-3-18769 | Magnum Producing, LP only | Maxwell (Cook Mtn. 12,500) | Liberty | 1 | 39K | 1.13K | Jan 1993 – Mar 2026 |
| Mallett G-3-115271 | Western Energy Group, LLC only | Raywood, W. (Cook Mountain) | Liberty | 1 | 35K | 3.33M | Jan 1993 – Nov 2017 |
| Tuer-Mitchell Unit G-3-64503 | Faulconer Energy, LLC only | Raywood, W. (Cook Mountain) | Liberty | 1 | 34K | 3.5M | Jan 1993 – Mar 2016 |
| Boyt G-3-215066 | Apache Corporation only | Devers, S. (Cook Mountain) | Liberty | 1 | 32K | 1.52M | Jan 2006 – Jun 2009 |
| Guam G-3-242380 | CML Exploration, LLC only | Raywood (Cook Mtn. 11200) | Liberty | 1 | 32K | 705K | Jul 2008 – Jan 2011 |
| Heimple -B- O-3-9200 | Quail Creek Oil Corporation only | Hull (Cook Mountain) | Liberty | 1 | 31.9K | 11.2K | Jan 1993 – Jul 2006 |