| Padgett, W.T. O-9-13381 | F&H Operating Company LLC only | Busher (Morris) | Runnels | 2 | 19.3K | 24.9K | by Jan 1993 – Aug 2026 |
| Cowden, W. F. "E" O-10-19759 | Bustamante Resources LLC only | Goldsmith, N. (San Andres, Con.) | Ector | 2 | 19.2K | 430 | by Jan 1993 – Aug 2026 |
| Buske-North O-8-26485 | Sojourner Drilling Corporation only | Jones County Regular | Jones | 3 | 19K | 19 | by Jan 1993 – Jul 2026 |
| Busch Gas Unit O/A G-3-157012 | Kaiser-Francis Oil Company only | Milton, N. (13000) | Harris | 1 | 18.6K | 2M | Jun 1995 – Mar 2007 |
| Fig Orchard Unit G-3-145129 | Columbus Energy Corp. only | Sralla Road (Jackson 9050) | Harris | 1 | 18.5K | 1.51M | Apr 1993 – Apr 2004 |
| Marek G-3-292694 | Strand Energy, L.C. only | Columbus (Consolidated) | Colorado | 1 | 18.5K | 486K | Apr 2022 – May 2026 |
| S. D. Martinez GU G-4-171660 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 18.3K | 4.06M | Nov 1998 – Aug 2026 |
| Shelton, Busch "D" O-3-17912 | King Operating Corporation only | Goose Creek | Harris | 1 | 18.2K | 38 | by Jan 1993 – Mar 2022 |
| McKendrick, W.H. G-4-153479 | Columbus Energy, LLC only | Hereford (Lobo) | Webb | 1 | 18K | 2.31M | Feb 1995 – Mar 2003 |
| Hachar, D. D. G-4-66575 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 18K | 4.46M | by Jan 1993 – Nov 2024 |
| Hastedt, Emma "B" G-3-151776 | Hilcorp Energy Company only | Columbus (12-E Wilcox) | Colorado | 1 | 18K | 791K | Oct 1994 – Oct 1997 |
| BMT G-4-163684 | Columbus Energy, LLC only | Clark Ranch (Lobo) | Webb | 1 | 17.5K | 2.77M | Jul 1997 – Aug 2026 |
| Rancho Blanco G-4-155948 | Columbus Energy, LLC only | Rancho Blanco (Lobo) | Webb | 1 | 17.1K | 4.54M | Oct 1995 – Jun 2012 |
| Busch Gas Unit O/A G-3-157019 | Daylight Petroleum LLC only | Milton, N. (13000) | Harris | 1 | 17.1K | 3.03M | Jul 1995 – Aug 2026 |
| Columbus Field Unit G-3-138600 | OXY USA Inc. only | Columbus (11-D) | Colorado | 1 | 17K | 652K | by Jan 1993 – Feb 1997 |
| Welder, J. F. Heirs -F- G-4-47222 | Columbus Energy, LLC only | Seven Sisters, East (10000) | Duval | 1 | 16.9K | 3.03M | by Jan 1993 – Mar 2021 |
| Hastedt, Emma O-3-5244 | Hilcorp Energy Company only | Columbus | Colorado | 1 | 16.9K | 20.4K | Oct 1993 – Aug 2001 |
| Shelton, Busch "E" O-3-18095 | King Operating Corporation only | Goose Creek | Harris | 1 | 16.8K | 37 | by Jan 1993 – Jan 2009 |
| Atlantic Fee O-10-15426 | Bustos, Martin Oil only | Brown & Thorp, N. (Clear Fork) | Pecos | 2 | 16.6K | 26 | by Jan 1993 – Mar 2013 |
| Van ES G-4-168716 | Columbus Energy, LLC only | Cuba Libre (3RD Hinnant) | Webb | 1 | 16.5K | 924K | Mar 1998 – Nov 2010 |
| Acevedo-Haering G-4-133190 | Columbus Energy, LLC only | Acevedo (Lobo 6) | Webb | 1 | 16.3K | 3.53M | by Jan 1993 – Aug 2026 |
| Hefley G-14-266242 | Hayabusa Energy USA, LLC only | Buffalo Wallow (Granite Wash) | Hemphill | 1 | 16.3K | 982K | Mar 2012 – Aug 2026 |
| Busher O-9-12199 | Anderson, James K. Inc. only | Little Boot (King) | Runnels | 1 | 16.3K | 8.27K | by Jan 1993 – Jun 2002 |
| Alexander, Charles G-4-165974 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 16.3K | 6.32M | Dec 1997 – Aug 2026 |
| Karon Unit G-2-90484 | Columbus Energy, LLC only | Karon (Luling) | Live Oak | 1 | 16.3K | 834K | by Jan 1993 – Jul 2022 |
| Busch G. U. G-3-39549 | Kaiser-Francis Oil Company only | Milton, N. (13000) | Harris | 1 | 16.1K | 1.37M | by Jan 1993 – Mar 2015 |
| Buschman A O-14-9125 | Rig Petroleum, LLC only | Allen-Parker (Marmaton) | Hansford | 1 | 16K | 77.5K | May 2014 – Jul 2026 |
| Buske O-8-25382 | Sojourner Drilling Corporation only | Jones County Regular | Jones | 4 | 16K | 20 | by Jan 1993 – Jul 2026 |
| Karon Unit G-2-61319 | Columbus Energy, LLC only | Karon (Luling) | Live Oak | 1 | 15.5K | 1.71M | by Jan 1993 – Mar 2016 |
| Martinez, D. G-4-138643 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 15.3K | 7.51M | by Jan 1993 – Sep 2017 |
| Bussey G-13-263151 | Formentera Operations LLC only | Newark, East (Barnett Shale) | Parker | 1 | 15.3K | 1.27M | Nov 2011 – Aug 2026 |
| Cullen, H. R. et Al G-3-209812 | Strand Energy, L.C. only | Columbus (Consolidated) | Colorado | 1 | 15.3K | 754K | Jun 2005 – Aug 2026 |
| Buscha-Hempel Unit G-3-140238 | Union Pacific Resources Company only | Giddings (Austin Chalk, Gas) | Fayette | 1 | 15.3K | 223K | by Jan 1993 – Aug 1996 |
| Ramirez, J.E. G-4-203854 | Columbus Energy, LLC only | Hereford (Lobo) | Webb | 1 | 15.2K | 2.68M | Aug 2004 – Aug 2026 |
| Bush, W. H. -B- O-10-29792 | Tacor Resources Inc only | Fuhrman-Mascho | Andrews | 4 | 15.1K | 21 | by Jan 1993 – Jul 1998 |
| Alexander, Charles G-4-166543 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 15K | 1.37M | Dec 1997 – Aug 2007 |
| Moebes, Leona K. O-3-7555 | Magnum Producing & Operating Co. only | Columbus (11-A) | Colorado | 1 | 15K | 36.3K | by Jan 1993 – May 1997 |
| Emma Hastedt "B" O-3-22821 | Hilcorp Energy Company only | Columbus ( 7-E Wilcox N) | Colorado | 1 | 14.9K | 29K | Jun 1995 – Oct 1998 |
| Koop G-2-258520 | Columbus Energy, LLC only | Westhoff (Combined Associated) | Jackson | 1 | 14.8K | 459K | Oct 2010 – Jul 2018 |
| Simcik, Clifton O-9-10696 | Bustamante Oil Company only | Lipan Creek (Strawn) | Tom Green | 1 | 14.8K | 3.91K | May 1993 – Dec 2013 |
| Haering-Martin G-4-144752 | Columbus Energy, LLC only | Volz (Lobo) | Webb | 1 | 14.7K | 3.68M | Mar 1993 – Nov 2014 |
| Columbus Field Unit G-3-170788 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 14.5K | 831K | Sep 1998 – Aug 2013 |
| Cochran Est. O-8-5766 | Bustamante Oil Company only | Group (4000) | Nolan | 3 | 14.4K | 38.6K | by Jan 1993 – Sep 2009 |
| Bussey G-13-266545 | Formentera Operations LLC only | Newark, East (Barnett Shale) | Parker | 1 | 14.4K | 1.25M | Jun 2012 – Aug 2026 |
| Rhode, D. W. 26 G-1-213903 | Columbus Energy, LLC only | Rhode (10,600 Wilcox) | McMullen | 1 | 14.2K | 2.6M | Dec 2005 – Aug 2026 |
| Martinez-Barrera Gas Init G-4-139901 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 14.2K | 7.43M | by Jan 1993 – Aug 2026 |
| Clark, N. H. G-4-155863 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 14.1K | 2.32M | Sep 1995 – Aug 2026 |
| Bruni Estate Gas Unit NO 1 G-4-71796 | Columbus Energy, LLC only | Thompsonville, NE. (9800) | Webb | 1 | 14.1K | 2.93M | by Jan 1993 – Jan 2020 |
| Maria Lafon Unit G-4-141558 | Columbus Energy, LLC only | Rodriguez (Lobo 6) | Webb | 1 | 13.9K | 6.87M | by Jan 1993 – Jun 2018 |
| Hachar, D.D. G-4-140872 | Columbus Energy, LLC only | Clark Ranch (Lobo) | Webb | 1 | 13.8K | 4.67M | by Jan 1993 – Aug 2026 |