| Moore, Emily Bush O-3-15227 | Browning Oil Company, Inc. only | Giddings (Austin Chalk-3) | Fayette | 1 | 2.86K | 22.5K | by Jan 1993 – Aug 1998 |
| Hubberd, William B G-4-66365 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 2.85K | 599K | by Jan 1993 – Aug 2026 |
| Hendry O-9-7485 | Bustamante Resources LLC only | Jameson (Strawn) | Coke | 2 | 2.82K | 190K | by Jan 1993 – Aug 2026 |
| Martinez-Barrera Gas Unit G-4-143693 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 2.82K | 1.44M | by Jan 1993 – Mar 2015 |
| Bush-Jones Unit O-1-12251 | Burk Royalty Company only | Nixon | Wilson | 2 | 2.81K | 16 | by Jan 1993 – Aug 1994 |
| Prosper Labus #2H O-1-12733 | Pedeco, Inc. only | Marcelina Creek (Austin Chalk) | Wilson | 2 | 2.8K | 0 | Mar 1998 – Oct 1998 |
| Brown "169" O-9-12213 | Bustamante Resources LLC only | Jameson (Strawn) | Sterling | 1 | 2.79K | 35K | by Jan 1993 – Jul 2026 |
| Cullen, H. R. et Al G-3-170916 | Dune Operating Company only | Columbus (Consolidated) | Colorado | 1 | 2.78K | 144K | Nov 1998 – Jan 2001 |
| Sharp Gas Unit G-6-112602 | Marion County Prod. Co., L.L.C. only | George Bush (Jeter) | Marion | 1 | 2.75K | 435K | by Jan 1993 – Jul 2026 |
| Cullen, H. R. et Al G-3-165768 | Quintana Pet. Corp. only | Columbus (9-C) | Colorado | 1 | 2.75K | 30.4K | Dec 1997 – Jul 1998 |
| McKendrick, W. H. G-4-203562 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 2.74K | 868K | Apr 2004 – Jul 2016 |
| Debusk, R. R. O-8-10272 | Mexco Energy Corporation only | Turnbow (Strawn 4625) | Haskell | 2 | 2.73K | 21 | by Jan 1993 – Aug 1995 |
| Busby, Annie G-6-192875 | Shoco Production LLC only | Minden (Travis Peak Cons.) | Rusk | 1 | 2.72K | 385K | Nov 2002 – Jul 2026 |
| Bush, Edith Smith O-2-5643 | Staples, James W. Prod. Co. only | San Domingo, S. (Hockley) | Bee | 3 | 2.72K | 2.01K | by Jan 1993 – Oct 2014 |
| Hachar, D. D. G-4-64849 | Columbus Energy Corp. only | Laredo (Lobo) | Webb | 1 | 2.71K | 566K | by Jan 1993 – Mar 1999 |
| Hastedt, Emma "B" G-3-160309 | Quintana Pet. Corp. only | Columbus ( 6-G) | Colorado | 1 | 2.71K | 201K | Sep 1996 – Jan 1998 |
| Scott Foundation 59 Gas Unit G-1-143463 | Columbus Energy, LLC only | Bonne Terre (9800) | McMullen | 1 | 2.69K | 290K | by Jan 1993 – Sep 2000 |
| Hubberd G-4-152892 | Columbus Energy, LLC only | Liz (8100) | Webb | 1 | 2.69K | 327K | Feb 1995 – Nov 1996 |
| Briones, J.E. "A" G-4-149234 | Columbus Energy, LLC only | La Perla (Lobo Cons.) | Zapata | 1 | 2.64K | 4.46M | Apr 1994 – Aug 2026 |
| Columbus Field Unit O-3-22244 | Mitchell Energy Company L.P. only | Columbus (6750 Wilcox) | Colorado | 2 | 2.63K | 2.01K | Oct 1993 – Jul 1994 |
| Zachry, H. B. -C- G-4-72249 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 2.6K | 1.19M | by Jan 1993 – Aug 2026 |
| Columbus Field Unit G-3-137355 | OXY USA Inc. only | Columbus (11-D) | Colorado | 1 | 2.6K | 179K | by Jan 1993 – Apr 1997 |
| Zachry, H. B. G-4-65463 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 2.6K | 1.6M | by Jan 1993 – Aug 2026 |
| De la Garza, Lolita Benavides G-4-201251 | Columbus Energy, LLC only | Tiffany (Wilcox Carrizo) | Webb | 1 | 2.6K | 538K | Mar 2004 – Oct 2010 |
| Clark, N. H. G-4-165697 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 2.59K | 1.2M | Oct 1997 – Aug 2026 |
| Terry "B" G-9-212324 | Bustamante Resources LLC only | Jameson (Strawn) | Coke | 1 | 2.58K | 97.4K | Oct 2005 – Aug 2026 |
| Hanna O-8-18351 | Bustamante Oil Company only | Mangum, North (3200) | Eastland | 1 | 2.58K | 51.5K | by Jan 1993 – Aug 2026 |
| Wilbanks 53 O-10-39824 | Diamondback E&P LLC only | Cedar Bush (Fusselman) | Martin | 1 | 2.57K | 0 | Dec 2009 – May 2010 |
| Forbus Estate Gas Unit G-6-78495 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 2.56K | 1.06M | by Jan 1993 – Aug 2026 |
| Cullen, H. R. et Al G-3-159531 | Quintana Pet. Corp. only | Columbus (12-F) | Colorado | 1 | 2.55K | 77.6K | Jul 1996 – Mar 1997 |
| Alexander, Charles G-4-169404 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 2.52K | 2.45M | Jul 1998 – Aug 2026 |
| Labus, Frank O-1-6645 | Jem Energy only | Marcelina Creek (Austin Chalk) | Wilson | 1 | 2.49K | 35 | by Jan 1993 – Feb 1996 |
| Hubberd, William "A1" G-4-189134 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 2.47K | 280K | Mar 2002 – Aug 2026 |
| Charles Alexander B G-4-167946 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 2.44K | 1.43M | Mar 1998 – Mar 2015 |
| Jameson, Jahew "E" G-10-128611 | Bustamante Oil Company only | Jameson, North (Strawn) | Nolan | 1 | 2.42K | 120K | by Jan 1993 – Apr 2019 |
| Kollman Heirs G-3-242846 | Strand Energy, L.C. only | Columbus (Consolidated) | Colorado | 1 | 2.4K | 128K | Jul 2008 – May 2010 |
| Columbus Field Unit G-3-136062 | Mitchell Energy Corporation only | Columbus (12-F) | Colorado | 1 | 2.4K | 90.6K | by Jan 1993 – Jun 1998 |
| Bruni, A. M. Est., -C- G-4-9641 | Columbus Energy, LLC only | Cabezon (Wilcox 5900) | Webb | 1 | 2.39K | 134K | by Jan 1993 – Jun 2018 |
| Columbus Field Unit G-3-140408 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 2.37K | 90.5K | by Jan 1993 – May 2011 |
| Wright, L. A. et Al G-4-162977 | Columbus Energy, LLC only | San Idelfonso (Lobo) | Webb | 1 | 2.37K | 1.56M | May 1997 – Dec 2020 |
| Armstrong G-10-226843 | Bustamante Resources LLC only | Ken Regan (Delaware) | Reeves | 1 | 2.37K | 14.7K | Feb 2007 – Aug 2026 |
| Schwarz G-4-131679 | Columbus Energy, LLC only | San Idelfonso (Lobo) | Webb | 1 | 2.35K | 1.06M | by Jan 1993 – Aug 2026 |
| Zachry, H. B. G-4-68319 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 2.35K | 2.26M | by Jan 1993 – Aug 2026 |
| Bush -A- O-10-26783 | Teke Production LLC only | Wheat | Loving | 1 | 2.34K | 7.27K | by Jan 1993 – Jan 2008 |
| Hachar-Adcock Unit G-4-112857 | Columbus Energy, LLC only | Laredo (Navarro) | Webb | 1 | 2.34K | 902K | by Jan 1993 – Aug 2025 |
| Busby Estate 'a' Gas Unit O-6-15928 | TGNR East Texas LLC only | Oak Hill (Travis Peak) | Rusk | 1 | 2.34K | 12.2K | May 2022 – Jan 2024 |
| Hastedt, Emma "B" O-3-23384 | Hilcorp Energy Company only | Columbus (6650) | Colorado | 1 | 2.33K | 13.5K | Dec 1997 – Aug 1998 |
| Hayes-Cassity Unit O-13-30029 | Encana Oil & Gas(usa) Inc. only | Barnabus (Mississippian) | Wise | 1 | 2.32K | 81.6K | Mar 2002 – Dec 2004 |
| Rancho Blanco G-4-193922 | Columbus Energy, LLC only | Rancho Blanco (Lobo) | Webb | 1 | 2.31K | 1.16M | Mar 2003 – Aug 2026 |
| Forbus Estate Gas Unit G-6-165892 | Rockcliff Energy Operating LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 2.31K | 1.2M | Sep 1997 – Apr 2012 |