| Margo "A" G-4-189893 | Starr Operating, LLC only | Arroyo Grande, W. (Cook Mt.) | Starr | 1 | 423 | 544K | Jul 2002 – Apr 2026 |
| Cook, B. F. O-13-5304 | KTC Oil Enterprises, LLC only | Wichita County Regular | Wichita | 5 | 408 | 20 | Jan 1993 – Mar 1997 |
| Morris, C. M., -A- O-13-11811 | Muller, C. M.& W. C. Oil Co. only | Cooke County Regular | Cooke | 5 | 394 | 21 | Jan 1993 – May 1998 |
| Condron, E. D., Jr. -B- O-8-10046 | Fourcooks Oil & Gas, LLC only | Throckmorton County Regular | Throckmorton | 1 | 393 | 0 | Jan 2013 – Mar 2024 |
| Hixon G-1-176535 | Lewis Petro Properties, Inc. only | Cooke (Edwards Lime) | La Salle | 1 | 377 | 109K | Mar 2000 – Feb 2026 |
| Ledbetter Ranch O-8-28616 | Guffey, Wm. R. only | Ledbetter Ranch (Cook Sd.) | Taylor | 1 | 372 | 1.36K | May 1999 – Sep 1999 |
| Cook "a", Sec. 83 O-8-26066 | Stasney, H. R. & Sons, Ltd. only | Shackelford County Regular | Shackelford | 1 | 364 | 10 | Jan 1993 – Oct 1993 |
| Little O-2-8513 | Nelson, James L. only | Weesatche, SW. (Cook Mt. 5300) | Goliad | 1 | 362 | 2.41K | Dec 1999 – Jan 2000 |
| Cook G-3-134548 | Trivista Operating LLC only | Serbin (Taylor Sand) | Bastrop | 1 | 360 | 146K | Jan 1993 – Feb 2026 |
| 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 |
| Cook "B" Sec 146 O-8-30740 | Stasney Well Service, LLC only | M. P. C. (Flippen) | Shackelford | 1 | 348 | 0 | Jun 2011 – Jul 2015 |
| Hodge-Wheelock Sand Unit O-13-16950 | Ralph's Oil Inc. only | Cooke County Regular | Cooke | 9 | 347 | 50 | Jan 1993 – Feb 1997 |
| Randall O-13-2161 | Jet-Star Co. only | Cooke County Regular | Cooke | 4 | 343 | 9 | Jan 1993 – Mar 1996 |
| Dawson & Conway "172" O-8-27826 | Snyder Drilling Corp. only | Dyno (Cook Sd., Lower) | Shackelford | 1 | 331 | 0 | Mar 1996 – Aug 1996 |
| C. N. Cooke "B" Unit G-1-203301 | Lewis Petro Properties, Inc. only | Cooke Ranch (Olmos) | La Salle | 1 | 331 | 88.9K | Feb 2004 – Apr 2026 |
| Newell 12-8 G-8-157602 | Van Operating, Ltd. only | L. G. Cook (Miss.) | Shackelford | 1 | 329 | 17.6K | Dec 1995 – Mar 1996 |
| Holbrook G-3-181880 | Western Energy Group, LLC only | Raywood (Cook Mtn. 10,850) | Liberty | 1 | 329 | 10.5K | Jan 2001 – Dec 2019 |
| Cook, Pauline G-13-214781 | Winchester Oil & Gas LLC only | Newark, East (Barnett Shale) | Wise | 1 | 323 | 142K | Sep 2005 – Aug 2007 |
| Endres, Urban J., Fee O-13-11754 | Cooke & Montague Oper. Co., Inc. only | Cooke County Regular | Cooke | 1 | 320 | 44 | Jan 1993 – Aug 1996 |
| Roller G-2-156606 | Nelson, James L. only | Poehler (Cook Mt.) | Goliad | 1 | 311 | 190K | Oct 1995 – Sep 2015 |
| Hess, Ray O-13-9940 | Hess Bros. Drlg. Co. only | Cooke County Regular | Cooke | 2 | 311 | 21 | Jan 1993 – Sep 1995 |
| Margo G-4-189892 | Newgulf Petroleum, LLC only | Arroyo Grande, W. (Cook Mt.) | Starr | 1 | 309 | 308K | Jul 2002 – Mar 2012 |
| McLaughlin, J. M. G-8-109573 | Vanco Oil & Gas Corp. only | J M M, South (Cook) | Nolan | 1 | 307 | 720K | Jan 1993 – Jan 2020 |
| Johnson Cook G Unit G-13-263564 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Tarrant | 1 | 305 | 1.84M | Jan 2012 – Apr 2026 |
| Rust Estate G-3-239700 | Cico Oil & Gas Company only | Hungerford, S. (Cook Mountain) | Wharton | 1 | 305 | 10K | Apr 2008 – May 2008 |
| Campbell, W. H. O-13-1966 | DSB Energy, LLC only | Cooke County Regular | Cooke | 14 | 303 | 47 | Jan 1993 – Jul 2006 |
| Smith-Dyer G-3-175134 | Patterson Petroleum LP only | Rosenberg, W. (Cook Mountain) | Fort Bend | 1 | 301 | 6.39K | Nov 1999 – Jun 2001 |
| Sanders O-8-31409 | Momentum Operating Co., Inc. only | Lueders, S. (Cook Lime) | Jones | 1 | 299 | 0 | Mar 2014 – Aug 2016 |
| McLaughlin,j.m. G-8-104763 | Vanco Oil & Gas Corp. only | J M M, South (Cook) | Nolan | 1 | 298 | 154K | Jan 1993 – Jan 2020 |
| McLaughlin, J. M. G-8-106337 | Vanco Oil & Gas Corp. only | J M M, South (Cook) | Nolan | 1 | 298 | 155K | Jan 1993 – Jan 2020 |
| McLaughlin, J.M. G-8-93613 | Vanco Oil & Gas Corp. only | J M M, South (Cook) | Nolan | 1 | 297 | 145K | Jan 1993 – Jan 2020 |
| McLaughlin,j.m. G-8-96130 | Vanco Oil & Gas Corp. only | J M M, South (Cook) | Nolan | 1 | 297 | 177K | Jan 1993 – Jan 2020 |
| McLaughlin, J.M. G-8-92761 | Vanco Oil & Gas Corp. only | J M M, South (Cook) | Nolan | 1 | 296 | 132K | Jan 1993 – Jan 2020 |
| McLaughlin, J.M. G-8-93277 | Vanco Oil & Gas Corp. only | J M M, South (Cook) | Nolan | 1 | 296 | 133K | Jan 1993 – Jan 2020 |
| Boehme, J. T. O-1-5345 | Cooke Energy Company only | Chicon Lake | Medina | 3 | 293 | 45 | Jan 1993 – Jul 2001 |
| Cook G-6-129669 | Red Rocket Ventures, LLC only | Joaquin (Travis Peak) | Shelby | 1 | 291 | 79.9K | Jan 1993 – Nov 2002 |
| Cook, Vannie G-4-120624 | Samson Lone Star LP only | Monte Christo (56-a, N) | Hidalgo | 1 | 291 | 97.7K | Jan 1993 – Mar 1995 |
| Renfro G-2-226787 | Modern Exploration, Inc. only | Carter Thomas (Cook Mtn.) | Goliad | 1 | 291 | 75.1K | Mar 2007 – Feb 2009 |
| Bond, Ollie O-13-11765 | Ralph's Oil Inc. only | Cooke County Regular | Cooke | 1 | 288 | 52 | Jan 1993 – Apr 1997 |
| Cook, W.I. Estate, Sec. 111A G-8-197192 | Stasney, H. R. & Sons, Ltd. only | Cook Ranch (Miss.) | Shackelford | 1 | 276 | 185 | Sep 2003 – Dec 2004 |
| Hendricks "F" O-8-29502 | G & F Oil, Inc. only | Bridwell-Hendrick (Cook, Lower) | Haskell | 2 | 276 | 0 | Dec 2013 – Aug 2020 |
| Haverkamp O-13-2043 | H and H Prod. Co. only | Cooke County Regular | Cooke | 3 | 274 | 66 | Jan 1993 – Jun 1998 |
| Grote, F. R. Estate O-13-25429 | Breeze Oil, LLC only | Cooke County Regular | Cooke | 1 | 274 | 21 | Jan 1993 – Oct 2003 |
| Collins, Clarence C. O-1-1960 | Crystal Resources, Inc only | Cooksey | Bexar | 3 | 274 | 16 | Jan 1993 – Jun 1995 |
| Cook-Parity O-1-9671 | Shwj Oil & Gas Co., Inc. only | Minerva-Rockdale | Milam | 4 | 273 | 22 | Mar 1993 – May 2001 |
| Poehler G-2-168386 | Estate of James L. Nelson only | Poehler (Cook MT 5130) | Goliad | 1 | 270 | 347K | May 1998 – Mar 2026 |
| Linker, W. A. O-13-13824 | Burk Royalty Company only | Cooke County Regular | Cooke | 1 | 265 | 20 | Jan 1993 – Nov 1994 |
| Muller Heirs O-13-25561 | Hermes, A. J. only | Cooke County Regular | Cooke | 2 | 264 | 13 | Jan 1993 – Sep 1995 |
| School O-13-10760 | Atex Exploration & Operating Co. only | Cooke County Regular | Cooke | 2 | 264 | 9 | Jan 1993 – Mar 1996 |
| Shelton O-9-16048 | Concho Oilfield Serv & Oper Co. only | Frog Pond Creek (Cook Sand) | Concho | 1 | 262 | 0 | Feb 2006 – Jun 2008 |