| Stuart Estate "60" O-8-29605 | Cumming Company, Inc. The only | Iona Hickey (Conglomerate) | Palo Pinto | 1 | 30 | 4.84K | May 2005 – Nov 2007 |
| Parkey "B" O-13-21870 | Pautsky, Jimmy only | Archer County Regular | Archer | 2 | 30 | 10 | Jan 1993 – Oct 1993 |
| Askey "C" G-13-223635 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Wise | 1 | 30 | 752K | Sep 2006 – Apr 2026 |
| North Hickey (AW) G-6-292623 | Sabine Energy Inc. only | Carthage (Haynesville Shale) | Panola | 1 | 29 | 9.71M | Apr 2022 – Apr 2026 |
| Keyser "G" O-13-24851 | Stovall, Troy only | Brazeel (Marble Falls) | Young | 1 | 28 | 0 | Oct 1995 – Jul 2002 |
| North Hickey (AW) G-6-292714 | Sabine Energy Inc. only | Carthage (Haynesville Shale) | Panola | 1 | 26 | 11.5M | Apr 2022 – Apr 2026 |
| Reichert 36 G-9-185175 | Caraway Operating Co. only | Rebecca (Harkey) | Schleicher | 1 | 26 | 196K | Sep 2001 – Sep 2018 |
| Keyser, F. H. G-13-60388 | 7-Iron Oil & Gas, LLC only | Jack County Regular (Gas) | Jack | 1 | 26 | 24.1K | Jan 1993 – Apr 2026 |
| Walton, J. B. G-10-116819 | Hilcorp Energy Company only | Keystone (Colby) | Winkler | 1 | 26 | 31.7K | Jan 1993 – Apr 1997 |
| McCoy, Bob -B- G-14-62762 | Cordillera Energy Prtnrs Iii,llc only | Shreikey (Morrow) | Roberts | 1 | 25 | 104K | Jan 1993 – Feb 1996 |
| Hickey, F.S. et Al G-6-195282 | Craton Operating LLC only | Centennial, E. (Cotton Valley) | Panola | 1 | 24 | 569K | Jun 2003 – Nov 2022 |
| Rawls G-8-99943 | Sun-Key Oil Co., Inc. only | Rawls (Marble Falls) | Hood | 1 | 24 | 96.4K | Jan 1993 – Jun 2001 |
| Hickey, F.S. et Al G-6-210254 | Craton Operating LLC only | Centennial, E. (Cotton Valley) | Panola | 1 | 23 | 399K | Mar 2005 – Nov 2022 |
| Mackey-McCord O-8-4995 | Jacobs, C. E., Co. only | McKeichan (Strawn) | Throckmorton | 3 | 23 | 8 | Jan 1993 – Aug 1993 |
| Mackey, L.L. G-6-300095 | Buffco Production Inc. only | Willow Springs (Rodessa) | Gregg | 1 | 23 | 2.25K | Sep 2025 – Apr 2026 |
| Askey, W. A. "B" G-13-196544 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 23 | 598K | May 2003 – Apr 2026 |
| Askey "B" G-13-61454 | Burlington Resources O & G Co LP only | Boonsville (Bend Congl., Gas) | Wise | 1 | 21 | 96.5K | Jan 1993 – May 2007 |
| Hickey, F.S. et Al G-6-197896 | Craton Operating LLC only | Centennial, E. (Cotton Valley) | Panola | 1 | 21 | 0 | Jul 2022 – Nov 2022 |
| Parkey Ranch G-8-80872 | Sun-Key Oil Co., Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 20 | 86.5K | Jan 1993 – Aug 2006 |
| Barber "E" O-11-61853 | Neff, Mickey Oil Company Inc. only | Sharon Ridge (1700) | Mitchell | 1 | 20 | 2 | Jan 1993 – Feb 1993 |
| Key-Reeder G-3-226912 | Santa Rosa Operating, LLC only | Maple Branch (Yegua) | Walker | 1 | 20 | 365K | Sep 2007 – May 2015 |
| Roosth & Genecov "A" G-6-133535 | Key Production Company, Inc. only | Lane Chapel (Paluxy B Sand) | Smith | 1 | 20 | 24.4K | Jan 1993 – Jun 1994 |
| Coffee Estate G-14-78922 | Huber, J. M., Corporation only | Shreikey (Morrow) | Roberts | 1 | 20 | 79.6K | Jan 1993 – Nov 1994 |
| Winslett, O.C. G-8-83790 | Sun-Key Oil Co., Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 20 | 36.4K | Jan 1993 – Dec 2009 |
| Huskey, F. G-13-21356 | Raylee Operating Company only | Darner-Hammon (Bend Congl.) | Jack | 1 | 20 | 30K | Jan 1993 – Aug 2002 |
| Kirby Lumber Co. G-3-123660 | D.C. Energy only | Pinckey (Wilcox) | Tyler | 1 | 18 | 1.67K | Jan 1993 – Feb 1993 |
| Key, G. A. Est. Moon O-13-23470 | P-K Oil Co. only | Archer County Regular | Archer | 3 | 18 | 19 | Jan 1993 – Dec 1994 |
| Lina -BH- G-14-21993 | Courson Oil & Gas, Inc. only | Ellis Ranch (Keys) | Ochiltree | 1 | 18 | 185K | Jan 1993 – Apr 2026 |
| Beard, L. et Al O-1-4128 | Ten-Key Inc. only | Cherokee (Navarro) | Milam | 2 | 17 | 4 | Feb 1993 – May 1993 |
| Hickey, F.S. et Al G-6-199761 | Craton Operating LLC only | Centennial, E. (Cotton Valley) | Panola | 1 | 17 | 501K | Nov 2003 – Nov 2022 |
| Askey "C" G-13-226543 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Wise | 1 | 17 | 487K | Sep 2006 – Apr 2026 |
| Smith, Lucy O-10-35017 | Chevron Midcontinent, L.P. only | Keystone (Holt) | Winkler | 1 | 15 | 0 | Jun 1996 – Jun 1996 |
| Baird, W. E. O-10-35121 | Pennzoil Exploration & Prod. Co. only | Keystone, SW. (San Andres) | Winkler | 1 | 14 | 634 | Sep 1996 – Oct 1996 |
| Hila Keyser O-13-30199 | Western Chief Operating, L.L.C. only | Blount (Buttram) | Young | 1 | 13 | 0 | Jul 2003 – Mar 2005 |
| Graham-Elkins O-1-8788 | Ten-Key Inc. only | Salt Flat | Caldwell | 1 | 13 | 3 | Feb 1993 – Aug 1993 |
| Herring O-11-61455 | Key, J. J. only | Varel (Glorieta) | Scurry | 2 | 12 | 12 | Jan 1993 – Dec 1993 |
| Bsi Keydets Du G-6-279897 | XTO Energy Inc. only | Carthage (Haynesville Shale) | San Augustine | 1 | 12 | 16.1M | Feb 2016 – Apr 2026 |
| South Keystone/Ellen/Unit G-10-229645 | Basin Oil & Gas Operating, LLC only | Keystone (Ellenburger) | Winkler | 1 | 11 | 143K | Aug 2006 – Mar 2016 |
| Walton, J. B. "A" G-10-235271 | XTO Energy Inc. only | Keystone (Ellenburger) | Winkler | 1 | 9 | 1.44M | Apr 2008 – Jul 2017 |
| Key, C & E O-13-30327 | BKJ Oil, LLC only | Archer County Regular | Archer | 1 | 9 | 0 | Jun 2004 – Jun 2004 |
| Harris -C- G-9-19361 | Williams Oil Company only | Toe Nail (Harkey) | Schleicher | 1 | 9 | 414K | Jan 1993 – Apr 2026 |
| Lackey GU G-14-216410 | Kodiak Oil & Gas, Inc. only | Hansford (Morrow, Lower) | Hansford | 1 | 8 | 453K | Feb 2006 – Mar 2026 |
| Mackey, W. C. "B" O-7-8672 | Gregg Operating, Inc. only | East Texas | Gregg | 3 | 8 | 4 | Jan 1993 – May 1997 |
| Bashara, M. J. G-10-270853 | Hilcorp Energy Company only | Keystone (Ellenburger) | Winkler | 1 | 8 | 60.9K | Mar 2013 – Jun 2015 |
| Adams, H. K. G-5-36992 | Brown, J. Burns Operating Co. only | Pokey (Travis Peak) | Limestone | 1 | 8 | 200K | Jan 1993 – Sep 1998 |
| Pogo Walton B G-10-172314 | Hilcorp Energy Company only | Keystone (Colby) | Winkler | 1 | 8 | 32.7K | Mar 1999 – Jun 2004 |
| Hickey, Billy G-13-246089 | Formentera Operations LLC only | Newark, East (Barnett Shale) | Johnson | 1 | 7 | 273K | Mar 2008 – Jan 2014 |
| Finn, Mickey "2" G-13-231806 | Arrington,david H. Oil & Gas,inc only | Newark, East (Barnett Shale) | Hood | 1 | 6 | 14.8K | Nov 2007 – Nov 2008 |
| Wilson-Harris Gas Unit G-8-99127 | Spindletop Oil & Gas Company only | Whiskey Flat (Lower Atoka) | Parker | 1 | 5 | 166K | Jan 1993 – Apr 2026 |
| Parkey Ranch G-8-83788 | D and N Natural Gas Op. Co. Inc. only | Morgan Mill (Marble Falls) | Erath | 1 | 5 | 3.68K | Jan 1993 – Aug 1998 |