| Hubberd 59 G-4-242234 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 947 | 526K | Sep 2008 – Aug 2026 |
| Columbus Field Unit G-3-170584 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 915 | 57.1K | Aug 1998 – Apr 2019 |
| Busey, George C. et Al O-13-28820 | Mitchell Energy Corporation only | Wise County Regular | Wise | 1 | 914 | 21.3K | Jul 1994 – Dec 1997 |
| Duty Gas Unit G-2-173834 | Columbus Energy, LLC only | Maxine, East (Massive, Lo.) | Live Oak | 1 | 913 | 156K | Mar 1999 – Jun 2000 |
| Bayou Development B G-3-226570 | Columbus Energy, LLC only | Dickinson (Frio Cons.) | Galveston | 1 | 912 | 333K | May 2006 – Dec 2019 |
| Rancho Blanco G-4-161393 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 889 | 539K | Sep 1996 – Aug 2026 |
| Hubberd , William "T" G-4-61239 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 889 | 364K | by Jan 1993 – Aug 2026 |
| Janet Bush Gas Unit #1 G-2-166847 | Bomar Oil & Gas, Inc. only | Holyfield Fan Man Sand (Yegua 1) | Lavaca | 1 | 877 | 150K | Jan 1996 – Dec 2003 |
| Benavides Tract 2 G-4-120157 | Columbus Energy Corp. only | Acevedo (Lobo 6) | Webb | 1 | 872 | 159K | by Jan 1993 – Aug 1994 |
| Sheri O-2-8195 | Trans Texas Minerals Company only | Labus (Austin) | Karnes | 1 | 872 | 871 | Aug 1996 – Jun 1998 |
| McKendrick, W. H. G-4-63381 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 871 | 1.67M | Mar 1994 – Aug 2026 |
| Busby Estate Gas Unit G-6-166418 | TGNR East Texas LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 870 | 861K | Aug 1997 – Aug 2026 |
| McKendrick G-4-82819 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 869 | 242K | by Jan 1993 – Jun 2010 |
| Bayou Development B G-3-151793 | Columbus Energy, LLC only | Dickinson (Frio Cons.) | Galveston | 1 | 858 | 569K | Oct 1994 – Nov 2007 |
| Bushnell, Hugh G-8-167182 | Braka Operating, L.L.C. only | Sabana (Marble Falls) | Eastland | 1 | 858 | 99.1K | Jan 1998 – Aug 2026 |
| Rancho Blanco G-4-203082 | Columbus Energy, LLC only | Rancho Blanco (Lobo) | Webb | 1 | 850 | 549K | Jun 2004 – Aug 2026 |
| Cochran, J. H. "A" O-8-28105 | Bustamante Oil Company only | Suggs (Ellenburger) | Nolan | 1 | 844 | 930 | Feb 1997 – Jan 1998 |
| Wright G-4-127865 | Columbus Energy, LLC only | Aguas Calientes (Lobo 1) | Webb | 1 | 840 | 549K | by Jan 1993 – Mar 2021 |
| Hastedt, Emma "B" G-3-175015 | Hilcorp Energy Company only | Columbus ( 5-H Wilcox) | Colorado | 1 | 840 | 51.3K | Nov 1999 – Dec 2000 |
| Forbus Estate Gas Unit G-6-235770 | TGNR East Texas II LLC only | Oak Hill (Cotton Valley) | Rusk | 1 | 837 | 521K | Jan 2008 – Aug 2026 |
| Martinez, D. G-4-90815 | Columbus Energy, LLC only | Laredo (Navarro) | Webb | 1 | 836 | 692K | by Jan 1993 – Aug 2014 |
| Noelke -A- O-9-1066 | Bustos, Martin Oil only | Noelke | Crockett | 1 | 830 | 13 | by Jan 1993 – Feb 1994 |
| Columbus Field Unit G-3-175846 | Rusk Energy Operating LLC only | Columbus (Consolidated) | Colorado | 1 | 827 | 4.21K | Dec 1999 – Oct 2020 |
| Hubberd, William "A2" G-4-192784 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 823 | 197K | Sep 2002 – Aug 2010 |
| Freeland O-8-22098 | Bussey, Joe F. only | Coleman County Regular | Coleman | 2 | 815 | 22 | by Jan 1993 – Oct 1994 |
| Busey Unit G-13-39999 | BKV Barnett, LLC only | Boonsville (Bend Congl., Gas) | Wise | 1 | 814 | 329K | by Jan 1993 – Aug 2026 |
| Martinez, D. G-4-145007 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 799 | 695K | Apr 1993 – Oct 2014 |
| Prevost G-4-197538 | Columbus Energy, LLC only | Clark Ranch (Lobo) | Webb | 1 | 792 | 244K | Sep 2003 – Aug 2026 |
| Jones, Bush O-13-2730 | Shell Western E&P Inc. only | Big Mineral Creek (V Sdstn.) | Grayson | 1 | 791 | 15.4K | by Jan 1993 – Oct 1993 |
| Alexander, Charles G-4-196110 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 790 | 915K | Mar 2003 – Aug 2026 |
| Oryx G-4-147843 | Columbus Energy, LLC only | Government Wells, N. (11500) | Duval | 1 | 785 | 2.62M | Feb 1994 – Oct 2019 |
| Hubberd "C3" G-4-203238 | Columbus Energy, LLC only | Hubberd (Lobo) | Webb | 1 | 774 | 1.13M | Jul 2004 – Aug 2026 |
| D. K. Z. Unit O-13-26909 | Cholla Petroleum, Inc. only | Barnabus (Ellenburger) | Cooke | 1 | 760 | 40 | by Jan 1993 – Sep 2001 |
| Columbus Field Unit G-3-129841 | Mitchell Energy Corporation only | Columbus ( 5-H Wilcox) | Colorado | 1 | 757 | 39.9K | by Jan 1993 – Mar 1995 |
| Busch, H., Etal -A- O-3-27305 | King Operating Corporation only | Goose Creek | Harris | 1 | 755 | 0 | May 2018 – Dec 2021 |
| Alexander, Charles G-4-212876 | Columbus Energy, LLC only | Bashara-Hereford (7300) | Webb | 1 | 741 | 420K | Jul 2005 – Aug 2026 |
| Columbus Field Unit G-3-41114 | Mitchell Energy Corporation only | Columbus (11-F-N) | Colorado | 1 | 738 | 61.5K | Aug 1993 – Mar 1997 |
| Holbein-Major Unit G-4-14625 | Columbus Energy, LLC only | Thompsonville, NE (Wilcox 9500) | Jim Hogg | 1 | 730 | 1.54M | by Jan 1993 – Jan 2009 |
| Zachry G-4-67069 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 721 | 749K | Feb 1993 – Aug 2015 |
| Bussey G-13-224945 | Eagleridge Operating, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 715 | 38.8K | Nov 2007 – Jan 2025 |
| Rhode, D. W. -19- G-1-122106 | Columbus Energy, LLC only | Rhode Ranch, W. (House 9100) | McMullen | 1 | 714 | 101K | by Jan 1993 – Apr 1997 |
| Hubberd Estate "D" G-4-209836 | Columbus Energy, LLC only | Liz (9200) | Webb | 1 | 700 | 1.93M | Feb 2005 – Aug 2026 |
| Forbus-McKinney G-6-242312 | Buckhorn Operating LLC only | Angie (James Lime) | San Augustine | 1 | 699 | 1.59M | Aug 2008 – Jul 2025 |
| Hachar, D.D. G-4-149550 | Columbus Energy, LLC only | Clark Ranch (Lobo) | Webb | 1 | 695 | 1.13M | Apr 1994 – Aug 2024 |
| Hubberd G-4-152213 | Columbus Energy, LLC only | Liz (9200) | Webb | 1 | 684 | 232K | Dec 1994 – May 2002 |
| Johnson G-4-130409 | Columbus Energy, LLC only | San Idelfonso (Lobo) | Webb | 1 | 673 | 486K | by Jan 1993 – Dec 2020 |
| Hastedt, Emma "B" G-3-166600 | Dune Operating Company only | Columbus (Consolidated) | Colorado | 1 | 662 | 121K | Dec 1997 – Feb 2009 |
| Hachar, D. D. G-4-69137 | Columbus Energy, LLC only | Laredo (Lobo) | Webb | 1 | 661 | 308K | by Jan 1993 – Jan 2013 |
| Everett Brothers "805" G-8-160694 | Unit Petroleum Company only | Big Bussy (Caddo, Upper) | Shackelford | 1 | 660 | 469K | Sep 1996 – Jun 2009 |
| Cullen, H.R. et Al O-3-17865 | Quintana Pet. Corp. only | Columbus | Colorado | 1 | 658 | 6.78K | by Jan 1993 – Apr 1993 |