| Vela G-4-155930 | Columbus Energy, LLC only | San Idelfonso (Lobo) | Webb | 1 | 7.99K | 2.49M | Oct 1995 – May 2020 |
| Kew-Davis G-13-189044 | Bustamante Oil Company only | Newark, East (Barnett Shale) | Wise | 1 | 7.89K | 213K | Feb 2002 – Jul 2023 |
| Prevost G-4-170467 | Columbus Energy, LLC only | Clark Ranch (Lobo) | Webb | 1 | 7.88K | 1.2M | Oct 1998 – Aug 2026 |
| Chamberlain-Gongora Unit G-4-118508 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 7.87K | 1.82M | by Jan 1993 – Aug 2026 |
| Martinez - Barrera Gas Unit G-4-78953 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 7.82K | 3.57M | by Jan 1993 – Aug 2026 |
| Bussey G-13-230516 | BKV North Texas, LLC only | Newark, East (Barnett Shale) | Parker | 1 | 7.81K | 1.02M | Mar 2007 – Aug 2026 |
| Holle O-9-19524 | Shoco Production LLC only | Busher (Morris) | Runnels | 3 | 7.81K | 8.42K | Apr 2018 – Jun 2026 |
| Emma Hastedt "B" G-3-151060 | Dune Operating Company only | Columbus (Consolidated) | Colorado | 1 | 7.77K | 1.07M | Aug 1994 – May 2002 |
| Bush O-10-30276 | Teke Production LLC only | Wheat | Loving | 1 | 7.75K | 17.1K | by Jan 1993 – Sep 2022 |
| McLemore "218" O-8-28658 | Unit Petroleum Company only | Big Bussy (Caddo, Upper) | Shackelford | 1 | 7.73K | 30.4K | Sep 1999 – Aug 2012 |
| Hasted, Emma 'A' O-3-24056 | Strand Energy, L.C. only | Columbus (Consolidated) | Colorado | 3 | 7.71K | 55K | Sep 2001 – May 2007 |
| Hastedt, Emma "B" G-3-168332 | Quintana Pet. Corp. only | Columbus (5-E Wilcox) | Colorado | 1 | 7.67K | 364K | May 1998 – Oct 1999 |
| Columbus Field Unit G-3-179446 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 7.59K | 976K | Jul 2000 – Aug 2026 |
| McNary-Ramsay G-4-171985 | Columbus Energy, LLC only | McNary (Hirsch 6950 Sd.) | Webb | 1 | 7.46K | 1.13M | Jan 1999 – Aug 2013 |
| Hastedt, Emma "B" G-3-165912 | Strand Energy, L.C. only | Columbus (Consolidated) | Colorado | 1 | 7.44K | 465K | Nov 1997 – Aug 2010 |
| Alexander, Charles G-4-194072 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 7.41K | 4.05M | Dec 2002 – Aug 2026 |
| BMT G-4-191487 | Columbus Energy, LLC only | Volz (Lobo) | Webb | 1 | 7.4K | 1.36M | Sep 2002 – Aug 2026 |
| Cedar Bayou G-3-144166 | Columbus Energy Corp. only | Sralla Road (Jackson 9050) | Harris | 1 | 7.38K | 806K | by Jan 1993 – Feb 1999 |
| Tippett O-10-19533 | Bustos, Martin Oil only | Toborg | Pecos | 1 | 7.36K | 82 | by Jan 1993 – Jun 2007 |
| Bush, Edith Smith O-2-7998 | Staples, James W. Prod. Co. only | San Domingo S. (Vicksburg) | Bee | 1 | 7.26K | 14.4K | Sep 1994 – Feb 2000 |
| Cedar Bayou O-3-23575 | Columbus Energy Corp. only | Sralla Road (Jackson, W.) | Harris | 1 | 7.25K | 103K | Aug 1998 – May 2000 |
| Laskowski, Emil O-2-6835 | Klotzman, M. S. Exploration Co. only | Labus (Austin) | Karnes | 1 | 7.25K | 24.2K | by Jan 1993 – Nov 1999 |
| Busch, H., Etal -A- O-3-1754 | Otex Resources LLC only | Goose Creek | Harris | 3 | 7.24K | 15 | by Jan 1993 – Jun 2007 |
| Columbus Field Unit G-3-174913 | Devon Energy Production Co, L.P. only | Columbus (Consolidated) | Colorado | 1 | 7.21K | 275K | Sep 1999 – Sep 2006 |
| Busenlehner O-9-11551 | Leclair Operating Co., Inc. only | Jim Burt, E. (Gardner) | Runnels | 2 | 7.15K | 68.2K | by Jan 1993 – Nov 1999 |
| Clark, N. H. G-4-119444 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 7.14K | 2.23M | by Jan 1993 – Aug 2026 |
| COG Malakoff-Peterson "A" G-4-120996 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 7.09K | 1.03M | by Jan 1993 – Aug 2026 |
| Sanders State O-10-28005 | Bustos, Martin Oil only | Wentz (Clear Fork) | Pecos | 2 | 7.09K | 53 | by Jan 1993 – Sep 2011 |
| Karon-Slick Unit G-2-2316 | Columbus Energy, LLC only | Karon (Slick) | Live Oak | 1 | 7.06K | 1.77M | by Jan 1993 – Aug 2026 |
| Columbus Field Unit G-3-5816 | Devon Energy Production Co, L.P. only | Columbus (Consolidated) | Colorado | 1 | 7.02K | 445K | by Jan 1993 – Apr 2005 |
| Block, Anna G-4-63918 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 6.97K | 512K | by Jan 1993 – Aug 2026 |
| B M T G-4-61814 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 6.96K | 2.97M | by Jan 1993 – Aug 2026 |
| Brune G-3-283564 | Strand Energy, L.C. only | Columbus (Consolidated) | Colorado | 1 | 6.95K | 221K | Dec 2017 – Dec 2018 |
| Alexander, Charles G-4-170619 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 6.93K | 4.25M | Aug 1998 – Aug 2026 |
| Hubberd G-4-149470 | Columbus Energy, LLC only | Liz (9200) | Webb | 1 | 6.9K | 2.56M | May 1994 – Aug 2026 |
| Yanta, Edwin O-2-9259 | Enervest Operating, L.L.C. only | Labus (Austin) | Karnes | 1 | 6.87K | 18.2K | Oct 2008 – May 2017 |
| Forbus-Maloney GU G-6-286958 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 6.77K | 3.11M | Nov 2018 – Jul 2026 |
| Alexander, Charles G-4-206612 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 6.69K | 3.84M | Dec 2004 – Aug 2026 |
| Bussey G-13-267095 | Formentera Operations LLC only | Newark, East (Barnett Shale) | Parker | 1 | 6.68K | 764K | Jun 2012 – Aug 2026 |
| Martinez-Barrera G.U. G-4-196934 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 6.64K | 2.82M | Aug 2003 – Aug 2026 |
| Bayou Development B G-3-65429 | Columbus Energy, LLC only | Dickinson (Frio Cons.) | Galveston | 1 | 6.63K | 300K | by Jan 1993 – Jul 2019 |
| Zachry G-4-99244 | Columbus Energy, LLC only | Rancho Blanco (Lobo) | Webb | 1 | 6.62K | 2.74M | by Jan 1993 – Sep 2019 |
| McLemore A-232 G-8-176250 | Southern Mineral Corporation only | Big Bussy (Caddo, Upper) | Shackelford | 1 | 6.59K | 39.1K | Jan 2000 – Sep 2000 |
| Busey-Gast Unit G-13-259312 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 6.59K | 744K | Sep 2010 – Feb 2025 |
| Henderson-State O-4-13973 | Columbus Energy, LLC only | Labbe | Duval | 1 | 6.56K | 0 | Jan 2016 – Aug 2026 |
| Cooper O-11-65364 | Bustamante Resources LLC only | Britt (Spraberry) | Dawson | 1 | 6.45K | 101 | by Jan 1993 – Jul 2026 |
| Busey-Gast Unit G-13-270770 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 6.44K | 553K | Aug 2013 – Aug 2026 |
| Cullen, H. R. et Al G-3-127291 | Quintana Pet. Corp. only | Columbus (9-F) | Colorado | 1 | 6.44K | 380K | by Jan 1993 – Jun 1996 |
| Hubberd, William C G-4-63360 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 6.44K | 909K | by Jan 1993 – Aug 2015 |
| Hachar, D. D. G-4-139411 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 6.38K | 2.68M | by Jan 1993 – Aug 2026 |