| Dornburg Unit O-2-8544 | Coastline Exploration, Inc. only | Brandt (Cook Mountain) | Goliad | 2 | 147K | 121K | Mar 1999 – May 2008 |
| Tsotsos O-2-8461 | Outline Oil Company LLC only | Gottschalt (Cook Mountain) | Goliad | 1 | 83.1K | 93.8K | Aug 1999 – Jun 2008 |
| Worley O-2-8773 | Proline Energy Resources Inc only | Brandt (Cook Mountain) | Goliad | 1 | 52.8K | 12.7K | Jan 2003 – Jul 2017 |
| Weise G-2-196686 | Erskine Energy, LLC only | Weesatche, West (Cook Mt.) | Goliad | 1 | 29.9K | 576K | Apr 2003 – Sep 2017 |
| Pereira, Desmond R. O-2-11003 | Wynn-Crosby Operating, Ltd. only | Hordes Creek (Cook Mtn. Sd.) | Goliad | 1 | 26K | 15.6K | Feb 2015 – Apr 2021 |
| E. Henke G-2-242488 | Estate of James L. Nelson only | Weesatche, West (Cook Mt.) | Goliad | 1 | 25.8K | 65.9K | Sep 2008 – Mar 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 |
| Gohlke Heirs O-2-8037 | Laguna Oil & Gas Corp. only | Poehler (Cook Mt.) | Goliad | 1 | 21K | 14.6K | Feb 1995 – Sep 2012 |
| Franke O-2-8366 | Coastline Exploration, Inc. only | Brandt, S. (Cook Mt. 5200) | Goliad | 1 | 20K | 88.5K | Mar 1998 – Mar 2002 |
| Ideus O-2-8540 | Coastline Exploration, Inc. only | Gottschalt (Cook Mountain) | Goliad | 1 | 18.1K | 25K | Jan 2000 – Jun 2002 |
| Lawson G-2-237632 | Dewbre Petroleum Corporation only | Cabeza Creek, S. (Cook MT E) | Goliad | 1 | 15.8K | 109K | Aug 2008 – Nov 2014 |
| Powell O-2-8955 | Lighthouse Exploration, Inc. only | Hordes Creek (Cook Mtn. Sd.) | Goliad | 1 | 9.13K | 5.99K | Apr 2005 – May 2007 |
| Fromme O-2-8408 | Coastline Exploration, Inc. only | Brandt, S. (Cook Mt. 5200) | Goliad | 1 | 4.56K | 5.08K | Nov 1998 – Sep 1999 |
| Fromme G-2-167885 | Coastline Exploration, Inc. only | Brandt, S. (Cook Mt. 5200) | Goliad | 1 | 4.34K | 37.7K | Mar 1998 – Nov 1998 |
| Cis G-2-202458 | Chesapeake Operating, Inc. only | Ander (Cook Mountain) | Goliad | 1 | 3.68K | 626K | Oct 2003 – Apr 2012 |
| Reaves-Dye "A" G-2-186759 | Hilcorp Energy Company only | Marshall, E. (Cook MOUNTAIN5460) | Goliad | 1 | 3.44K | 266K | Sep 2001 – Apr 2011 |
| 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 |
| Diebel Unit G-2-164641 | Coastline Exploration, Inc. only | Brandt (Cook Mountain) | Goliad | 1 | 2.74K | 292K | Aug 1997 – Aug 1999 |
| Arnecke G-2-184379 | Acock Operating Limited only | Weesatche, SW. (Cook Mt. 5300) | Goliad | 1 | 2.42K | 389K | Jun 2001 – Feb 2004 |
| Dennis Reitz O-2-9228 | Nadsoilco LLC only | Gottschalt (Cook Mountain) | Goliad | 1 | 2.39K | 0 | Jun 2008 – Dec 2011 |
| D. Duderstadt Unit G-2-165316 | Coastline Exploration, Inc. only | Brandt (Cook Mountain) | Goliad | 1 | 2.34K | 103K | Oct 1997 – Nov 1998 |
| 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 |
| Chapman G-2-135869 | Nelson, James L. only | Cabeza Creek, S. (Cook MT S) | Goliad | 1 | 1.55K | 207K | Jan 1993 – Oct 2017 |
| Dohmann 80 O-2-10012 | Houston Gulf Energy Corporation only | Weesatche, S. ( Cook Mt. 5300) | Goliad | 1 | 1.54K | 134K | Aug 2011 – Jul 2015 |
| Lawson-Ramsey O-2-9405 | Dewbre Petroleum Corporation only | Cabeza Creek, S. (Cook MT E) | Goliad | 1 | 1.1K | 37.5K | Oct 2009 – Sep 2011 |
| Millen G-2-142425 | Seguro Well Service, Inc. only | Gowitt (Cook Mountain) | Goliad | 1 | 1.08K | 14.9K | Jan 1993 – Jan 1994 |
| Heard Heirs G-2-199388 | Acock Operating Limited only | Weesatche, S. ( Cook Mt. 5300) | Goliad | 1 | 984 | 191K | Oct 2003 – May 2005 |
| Pettus Unit G-2-71798 | Nog Production & Operating LLC only | Cabeza Creek (Cook Mtn.) | Goliad | 1 | 939 | 60K | Sep 2010 – Mar 2026 |
| Luker G-2-166983 | Coastline Exploration, Inc. only | Brandt, S. (Cook Mt. 5200) | Goliad | 1 | 893 | 57.4K | Jan 1998 – Mar 1999 |
| Gruetzmacher O-2-8732 | Tema Oil and Gas Company only | Weesatche, West (Cook Mt.) | Goliad | 2 | 836 | 10.5K | Sep 2001 – Aug 2002 |
| Schorlemer, Walter G-2-128128 | B.P. Productions Inc. only | Weesatche, W. (Cook Mt. 5270) | Goliad | 1 | 798 | 98.8K | Jan 1993 – Aug 2003 |
| Poehler, Mary O-2-6241 | Nelson, James L. only | Poehler (Cook Mt.) | Goliad | 1 | 795 | 8.4K | Jan 1993 – Nov 2002 |
| Republic G-2-194142 | Texana Operating Company only | Marshall, S.W. (Cook MTN 5500) | Goliad | 1 | 742 | 115K | Nov 2002 – Mar 2005 |
| Lawson O-2-10993 | Sue-Ann Operating, L.C. only | Cabeza Creek, S. (Cook MT E) | Goliad | 1 | 587 | 0 | Dec 2014 – Nov 2015 |
| McCord Trust B G-2-255113 | Spiller Operating Co., Inc. only | Dallas Husky (Cook Mtn.) | Goliad | 1 | 563 | 127K | Feb 2010 – May 2012 |
| Cook G-2-174406 | Estate of James L. Nelson only | Gowitt (Yegua 4575) | Goliad | 1 | 540 | 217K | Apr 1999 – Mar 2026 |
| Weise, Bruce G-2-212488 | Coastline Exploration, Inc. only | Weesatche, West (Cook Mt.) | Goliad | 1 | 443 | 129K | May 2005 – Feb 2011 |
| Little O-2-8513 | Nelson, James L. only | Weesatche, SW. (Cook Mt. 5300) | Goliad | 1 | 362 | 2.41K | Dec 1999 – Jan 2000 |
| Ramsey, Ralph W. "B" G-2-143164 | Abel, M.D. Co. only | A-B-R, North (Cook Mountain) | Goliad | 1 | 350 | 7.24K | Jan 1993 – Aug 1994 |
| Roller G-2-156606 | Nelson, James L. only | Poehler (Cook Mt.) | Goliad | 1 | 311 | 190K | Oct 1995 – Sep 2015 |
| Renfro G-2-226787 | Modern Exploration, Inc. only | Carter Thomas (Cook Mtn.) | Goliad | 1 | 291 | 75.1K | Mar 2007 – Feb 2009 |
| Poehler G-2-168386 | Estate of James L. Nelson only | Poehler (Cook MT 5130) | Goliad | 1 | 270 | 347K | May 1998 – Mar 2026 |
| Cook G-2-175413 | Estate of James L. Nelson only | Gowitt (Cook Mountain) | Goliad | 1 | 197 | 70.9K | Apr 1999 – Feb 2000 |
| Vernett McMullen G-2-203200 | Acock/Anaqua Operating Co., LP only | Ander (Cook Mountain) | Goliad | 1 | 178 | 140K | May 2004 – Jun 2009 |
| Albrecht, V. G-2-188214 | Kerr-McGee Oil & Gas Onshore LP only | Marshall, E. (Cook MOUNTAIN5460) | Goliad | 1 | 168 | 35.8K | Jan 2002 – Jun 2003 |
| Fromme O-2-8695 | Coastline Exploration, Inc. only | Brandt, S. (Cook Mt. 5200) | Goliad | 1 | 124 | 268 | Nov 2001 – Dec 2001 |
| Luedicke Heirs G-2-161518 | Castex Energy, Inc. only | Poehler (Cook MT 5130) | Goliad | 1 | 106 | 27.1K | Nov 1996 – Mar 1997 |
| Weise G-2-195119 | Coastline Exploration, Inc. only | Weesatche, West (Cook Mt.) | Goliad | 1 | 65 | 14.3K | Jun 2002 – Sep 2002 |
| Chapman Brothers G-2-257145 | Estate of James L. Nelson only | Poehler (Cook Mt.) | Goliad | 1 | 54 | 31.4K | Jul 2010 – Dec 2017 |
| Whipp G-2-180959 | Westport Oil and Gas Company, LP only | Marshall, E. (Cook MOUNTAIN5460) | Goliad | 1 | 47 | 5.96K | Nov 2000 – Jun 2003 |