| Galle O-8-25337 | Bustamante Oil Company only | Southview | Taylor | 2 | 13.7K | 24 | by Jan 1993 – Mar 2021 |
| Keidel-Tejones 1664 G-4-123644 | Columbus Energy, LLC only | Vaquillas Ranch (Lobo) | Webb | 1 | 13.6K | 1.8M | by Jan 1993 – Oct 2000 |
| Busey-Gast Unit G-13-258821 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 13.6K | 1.64M | Sep 2010 – Aug 2026 |
| Columbus Field Unit G-3-127433 | Mitchell Energy Corporation only | Columbus (11-A) | Colorado | 1 | 13.6K | 252K | by Jan 1993 – Jul 1998 |
| PHS Gas Unit G-3-247837 | Bushmaster Production Comp, LLC only | Tidehaven (10,300) | Matagorda | 1 | 13.5K | 843K | Feb 2009 – Jun 2026 |
| Bush, Ed. O-1-10860 | Petro Lions, LLC only | Somerset | Atascosa | 9 | 13.4K | 20 | by Jan 1993 – Aug 2026 |
| Martin 60 Gas Unit G-1-143064 | Columbus Energy, LLC only | Bonne Terre (9800) | McMullen | 1 | 13.4K | 1.52M | by Jan 1993 – Dec 2014 |
| Busby G-13-273989 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Montague | 1 | 13.3K | 411K | Aug 2009 – Aug 2026 |
| Hubberd, William "B2" G-4-191715 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 13.2K | 3M | Jul 2002 – Aug 2026 |
| Hubberd, William "C" G-4-189398 | Columbus Energy, LLC only | Liz (8100) | Webb | 1 | 13.2K | 2.18M | Mar 2002 – Aug 2026 |
| El Cid -C- O-1-13804 | Bush, Mark A. Oil and Gas Inc. only | Pearsall (Austin Chalk) | La Salle | 3 | 12.9K | 0 | Feb 1997 – Nov 2021 |
| Busch, H. O-3-27304 | Trek Resources, Inc. only | Goose Creek | Harris | 5 | 12.9K | 0 | Jun 2018 – Jul 2026 |
| Hubberd, William "D3" G-4-191411 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 12.8K | 4.48M | May 2002 – May 2026 |
| Hachar G-4-189724 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 12.7K | 2.6M | Jan 2002 – Aug 2025 |
| Bushman G-3-159460 | Magnolia Oil & Gas Operating LLC only | Giddings (Austin Chalk-3) | Grimes | 1 | 12.7K | 367K | Jun 1996 – Apr 2012 |
| Cullen, H. R. et Al G-3-146170 | Dune Operating Company only | Columbus (Consolidated) | Colorado | 1 | 12.6K | 420K | Jun 1993 – Feb 2002 |
| Kollman Heirs O-3-25003 | Strand Energy, L.C. only | Columbus (Consolidated) | Colorado | 1 | 12.6K | 20K | Jun 2007 – Jun 2008 |
| Lindholm C S G-1-112239 | Columbus Energy, LLC only | Rhode (10,600 Wilcox) | McMullen | 1 | 12.5K | 1.46M | by Jan 1993 – Aug 2026 |
| Rhode, D. W. -19- G-1-150011 | Columbus Energy, LLC only | Rhode Ranch, W. (House 9100) | McMullen | 1 | 12.4K | 2.05M | Jun 1994 – May 2024 |
| Block, Anna G-4-130731 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 12.4K | 2.94M | by Jan 1993 – Aug 2026 |
| Ashmore-Fitts O-10-28763 | Bustamante Resources LLC only | McFarland, East (Queen) | Andrews | 2 | 12.4K | 5.99K | by Jan 1993 – Aug 2026 |
| Hill & Hill O-10-17448 | Bustos, Martin Oil only | Malicky (Queen Sand) | Pecos | 4 | 12.3K | 8.85K | by Jan 1993 – Mar 2009 |
| Rancho Blanco G-4-177063 | Columbus Energy, LLC only | Rancho Blanco (Lobo) | Webb | 1 | 12.3K | 4.32M | Apr 2000 – Aug 2026 |
| Duty Gas Unit G-2-97328 | Columbus Energy, LLC only | Maxine, East (Mackhank) | Live Oak | 1 | 12.3K | 688K | by Jan 1993 – Jan 2016 |
| Vaquillas 135A G-4-142456 | Columbus Energy, LLC only | Vaquillas Ranch (Lobo) | Webb | 1 | 12.2K | 378K | by Jan 1993 – Jun 1997 |
| BMT G-4-160253 | Columbus Energy, LLC only | Clark Ranch (Lobo) | Webb | 1 | 12.1K | 1.92M | Sep 1996 – Aug 2026 |
| Williams, R. S. "B" O-9-9991 | Bustamante Oil Company only | Velrex (Cisco 6260) | Schleicher | 1 | 12.1K | 218K | by Jan 1993 – Aug 2026 |
| Rokohl Slick Sand Gas Unit G-2-2313 | Columbus Energy, LLC only | Karon (Slick) | Live Oak | 1 | 11.9K | 2.21M | by Jan 1993 – Jun 2026 |
| Brune O-3-27500 | Strand Energy, L.C. only | Columbus (Consolidated) | Colorado | 1 | 11.9K | 29.8K | Jan 2019 – Mar 2025 |
| Hubberd G-4-149907 | Columbus Energy, LLC only | Liz (9200) | Webb | 1 | 11.8K | 1.6M | Jun 1994 – Aug 2026 |
| Williams, R. S. 'A' O-9-15100 | Bustamante Oil Company only | Velrex (Wolfcamp) | Schleicher | 1 | 11.8K | 179K | Feb 2001 – Aug 2026 |
| Hill & Hill -A- O-10-19386 | Bustos, Martin Oil only | Malicky (Queen Sand) | Pecos | 2 | 11.8K | 64 | by Jan 1993 – Mar 2009 |
| Bruni Estate -D- G-4-53721 | Columbus Energy, LLC only | Thompsonville, NE. (9800) | Webb | 1 | 11.7K | 4.76M | by Jan 1993 – Aug 2026 |
| Hastedt, Emma 'B' G-3-174932 | Strand Energy, L.C. only | Columbus (Consolidated) | Colorado | 1 | 11.5K | 372K | Oct 1999 – Feb 2018 |
| Johnson, C. M. and D. L. O-10-9125 | Bustamante Resources LLC only | Payton | Ward | 3 | 11.5K | 130 | by Jan 1993 – Aug 2026 |
| Davis O-8-29216 | Bustamante Oil Company only | Jones County Regular | Jones | 2 | 11.5K | 0 | Mar 2003 – Aug 2026 |
| Alexander, Charles G-4-166000 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 11.5K | 59.3K | Dec 1997 – Oct 2012 |
| Davis Oil Unit No. 1 O-3-20406 | Columbus Energy Corp. only | Sralla Road (Jackson 9050) | Harris | 1 | 11.4K | 353K | by Jan 1993 – Jun 1997 |
| Graham, James F. O-8-25696 | Bustamante Resources LLC only | Coon Hollow (Flippen) | Taylor | 4 | 11.3K | 275 | by Jan 1993 – Aug 2026 |
| Bruni Mineral Trust G-4-64000 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 11.3K | 3.94M | by Jan 1993 – Aug 2026 |
| Karon Unit O-2-761 | Columbus Energy, LLC only | Karon (Luling) | Live Oak | 2 | 11.3K | 1 | by Jan 1993 – Apr 1994 |
| Alexander, Charles G-4-165577 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 11.2K | 3.23M | Nov 1997 – Aug 2026 |
| Hastedt, Emma 'B' O-3-24059 | Strand Energy, L.C. only | Columbus (Consolidated) | Colorado | 6 | 11.2K | 143K | Apr 2001 – Aug 2026 |
| Bussell O-13-26334 | Stovall, Troy only | Young County Regular | Young | 1 | 11.2K | 188K | by Jan 1993 – Aug 2026 |
| Bush O-10-18411 | Teke Production LLC only | Wheat | Loving | 1 | 11.1K | 1.97K | by Jan 1993 – Jun 2023 |
| Alexander, Charles E. G-4-69688 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 11K | 972K | Jan 1997 – Aug 2026 |
| Kessler, Fred "A" O-8-18131 | Bustamante Resources LLC only | Taylor County Regular | Taylor | 1 | 11K | 258 | by Jan 1993 – Aug 2026 |
| Bush 13-253 O-10-40591 | Thompson, J. Cleo only | Hoban (Bone Springs) | Reeves | 2 | 10.9K | 8.2K | Apr 2010 – Nov 2010 |
| Martinez, D. G-4-139918 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 10.9K | 2.37M | by Jan 1993 – Jun 2017 |
| Acevedo-Haering G-4-153185 | Columbus Energy, LLC only | Volz (Lobo) | Webb | 1 | 10.9K | 2.96M | Feb 1995 – Aug 2026 |