| Hagaman Unit O-3-26647 | Decker Operating Co., L.L.C. only | BSR (Sub-Clarksville) | Madison | 1 | 194K | 411K | Oct 2014 – Mar 2026 |
| Sheldon Unit O-3-26251 | Decker Operating Co., L.L.C. only | Halliday (Woodbine) | Madison | 1 | 173K | 528K | Jan 2013 – Mar 2026 |
| Andrews Unit O-3-26626 | Decker Operating Co., L.L.C. only | Halliday (Woodbine) | Leon | 1 | 139K | 463K | Dec 2013 – Mar 2026 |
| Chapman JO D O-4-13547 | Decker Operating Co., L.L.C. only | Chapman Ranch (Upper Frio Cons.) | Nueces | 1 | 101K | 18.9K | Nov 2006 – Mar 2026 |
| Decker-Vogtsberger Unit O-13-17071 | Briggs & Croker Oil, LLC only | Decker (Bryson, Lower) | Archer | 14 | 92.4K | 50 | Jan 1993 – Nov 2020 |
| Leyendecker, R. F. O-1-2256 | Castillo Oil Company LLC only | Luling-Branyon | Caldwell | 20 | 77.4K | 81.2K | Jan 1993 – Apr 2026 |
| Bruni-Leyendecker O-4-7672 | Killam Oil Co., Ltd. only | Retamia (Wilcox 5100) | Webb | 3 | 72.4K | 747 | Jan 1993 – Nov 2016 |
| Decker O-13-20198 | Gilmore, Leo Oil, Inc. only | Sturm (Canyon) | Archer | 2 | 45.4K | 22 | Jan 1993 – Apr 2026 |
| Leyendecker O-3-27155 | Jamex, Inc. only | Zimmerscheidt (Wilcox) | Colorado | 1 | 42.8K | 28K | Sep 2016 – Mar 2026 |
| Decker, George "B" O-13-22282 | Peterson Oil and Gas LLC only | Vogtsberger, South(conglomerate) | Archer | 1 | 36.4K | 6.83K | Jan 1993 – Sep 2025 |
| Murchison-Wofford O-5-879 | Decker Operating Co., L.L.C. only | La Rue | Henderson | 1 | 34.7K | 72 | Jan 1993 – Nov 2019 |
| Chapman, J. O. O-4-13553 | Decker Operating Co., L.L.C. only | Chapman Ranch (Upper Frio Cons.) | Nueces | 1 | 31.1K | 3.75K | Apr 2009 – Mar 2021 |
| Chapman J. O. O-4-12911 | Decker Operating Co., L.L.C. only | Chapman Ranch (5600) | Nueces | 2 | 28.5K | 65K | Dec 1999 – Oct 2006 |
| Chapman, J.O. "C" O-4-13397 | Decker Operating Co., L.L.C. only | Chapman Ranch (Catahoula Cons.) | Nueces | 1 | 26.8K | 35.9K | May 2007 – Dec 2015 |
| Decker O-8-29390 | Imperial Gas Resources LLC only | Hull-Dobbs, N. (Fry Sand) | Runnels | 2 | 26.1K | 0 | Jan 2004 – Jan 2026 |
| Chapman Ranch O-4-5608 | Decker Operating Co., L.L.C. only | Chapman Ranch, E. (Davis) | Nueces | 5 | 25.7K | 23 | Feb 1993 – Jul 2004 |
| Decker, J. O-13-26227 | Willowbend Investments, Inc. only | Deer Creek (Israel 5000) | Clay | 2 | 24.9K | 31 | Jan 1993 – Dec 2010 |
| Decker O-8-29137 | Imperial Gas Resources LLC only | Goldsboro (Gray) | Runnels | 2 | 20.5K | 16.5K | Mar 2002 – Jan 2026 |
| Chapman Ranch -B- O-4-8644 | Decker Operating Co., L.L.C. only | Chapman Ranch (5600) | Nueces | 1 | 20.1K | 24 | Jan 1993 – Oct 2006 |
| Chapman, J. O. O-4-447 | Decker Operating Co., L.L.C. only | Chapman Ranch (C- 3) | Nueces | 5 | 19K | 31K | Jan 1993 – Oct 2006 |
| Chapman Ranch, J. O. "D" O-4-13389 | Decker Operating Co., L.L.C. only | Chapman Ranch (6260) | Nueces | 1 | 14.8K | 2.51K | Jul 2006 – Oct 2006 |
| Leyendecker, R. F. -B- O-1-1123 | Eagle Ford Oil Co., Inc. only | Luling-Branyon | Caldwell | 14 | 14.8K | 3.74K | Jan 1993 – Jan 2013 |
| Chapman J.O. O-4-13423 | Decker Operating Co., L.L.C. only | Chapman Ranch (Catahoula Cons.) | Nueces | 9 | 13.5K | 20.7K | Nov 2006 – Dec 2015 |
| Chapman, J. O. O-4-12906 | Decker Operating Co., L.L.C. only | Chapman Ranch (6600) | Nueces | 1 | 12.9K | 5.33K | Feb 2000 – Nov 2004 |
| Chapman, J. O. O-4-7598 | Decker Operating Co., L.L.C. only | Chapman Ranch (C- 5) | Nueces | 2 | 10.3K | 4.32K | Jan 1993 – Mar 1996 |
| Chapman, J. O. O-4-12969 | Decker Operating Co., L.L.C. only | Chapman Ranch (C-15) | Nueces | 1 | 9.9K | 3.49K | Nov 2000 – Jan 2005 |
| Leyendecker, R. F. "A" O-1-2203 | Eagle Ford Oil Co., Inc. only | Luling-Branyon | Caldwell | 11 | 9.76K | 3.28K | Jan 1993 – Jan 2013 |
| Chapman Ranch O-4-13500 | Decker Operating Co., L.L.C. only | Chapman Ranch (Upper Frio Cons.) | Nueces | 1 | 7.76K | 27.2K | Jun 2008 – May 2013 |
| Decker, Fred "D" O-13-23307 | Pobres Incorporated only | Vogtsberger, South(conglomerate) | Archer | 1 | 7.11K | 3.61K | Jan 1993 – Nov 2004 |
| Doneghy "B" O-13-22919 | Pobres Incorporated only | Decker (Bryson, Lower) | Archer | 2 | 6.84K | 21 | Jan 1993 – Apr 1999 |
| Decker "E" O-13-26471 | Briggs & Croker Oil, LLC only | Vogtsberger (Caddo 5140) | Archer | 1 | 6.42K | 16 | Jan 1993 – Nov 2020 |
| Decker O-8-29163 | Imperial Gas Resources LLC only | Goldsboro (Gardner) | Runnels | 2 | 5.16K | 0 | Jul 2002 – Sep 2006 |
| Champman J.O. O-4-13378 | Decker Operating Co., L.L.C. only | Chapman Ranch (Upper Frio Cons.) | Nueces | 4 | 5.14K | 15.2K | Nov 2006 – Jan 2012 |
| Chapman, J. O. O-4-8378 | Decker Operating Co., L.L.C. only | Chapman Ranch (4780) | Nueces | 2 | 5.08K | 3.46K | Sep 2001 – Oct 2004 |
| Brautigam Gas Unit O-3-17274 | Atasca Resources, Inc. only | Deckers Prairie (Wilcox) | Montgomery | 1 | 3.88K | 17.1K | Jan 1993 – Dec 1996 |
| Peterson O-13-34235 | Peterson Oil and Gas LLC only | Decker (Bryson, Lower) | Archer | 8 | 3.83K | 0 | Dec 2023 – Sep 2025 |
| Decker "E" O-13-10069 | Pobres Incorporated only | Decker (Bryson, Lower) | Archer | 2 | 3.41K | 21 | Jan 1993 – Oct 2005 |
| Decker, J. J. O-8-28792 | Koko Skadi, LLC only | Talpa (Dog Bend) | Coleman | 1 | 3.27K | 36.6K | Apr 2000 – Feb 2026 |
| Decker O-8-18013 | Bam Operating, Inc. only | Ranger,nw (Marble Falls) | Eastland | 1 | 2.61K | 57.2K | Jan 1993 – Jun 2001 |
| Chapman, J. O. O-4-8124 | Decker Operating Co., L.L.C. only | Chapman Ranch (6800) | Nueces | 1 | 2.04K | 2.17K | Dec 1995 – Jan 1997 |
| Chapman, J. O. O-4-12946 | Decker Operating Co., L.L.C. only | Chapman Ranch (Catahoula, Msv,e) | Nueces | 1 | 1.82K | 17.2K | Jun 2000 – Jan 2005 |
| Chapman Ranch -B- O-4-13379 | Decker Operating Co., L.L.C. only | Chapman Ranch (Upper Frio Cons.) | Nueces | 1 | 1.78K | 0 | Nov 2006 – Oct 2012 |
| Boedecker, Grace O-13-21524 | Mitchell Energy Corporation only | Park Springs (Congl.) | Wise | 1 | 1.67K | 13.7K | Jan 1993 – Aug 1995 |
| Chapman Ranch O-4-13508 | Decker Operating Co., L.L.C. only | Chapman Ranch (Catahoula Cons.) | Nueces | 1 | 1.45K | 74.3K | Jun 2008 – Jul 2015 |
| Doneghy O-13-17512 | Burk Royalty Company only | Decker (Bryson, Lower) | Archer | 1 | 883 | 4.02K | Jan 1993 – Jun 1994 |
| Snell O-13-25283 | Pobres Incorporated only | Decker (Bryson, Lower) | Archer | 1 | 798 | 16 | Jan 1993 – Aug 1994 |
| Chapman Ranch Sec. 74 O-4-12318 | Decker Operating Co., L.L.C. only | Chapman Ranch (C- 5) | Nueces | 1 | 645 | 165 | Mar 1994 – Feb 1996 |
| Chapman, J. O. O-4-8212 | Decker Operating Co., L.L.C. only | Chapman Ranch (C-18) | Nueces | 8 | 574 | 2.52K | Jan 1993 – Apr 1993 |
| McDonald O-5-3875 | Decker Operating Co., L.L.C. only | Tri-Cities (Pettit) | Henderson | 1 | 290 | 0 | Jun 2008 – Aug 2008 |
| Decker, J.J. O-8-16405 | Barry, P.W. only | Talpa (Dog Bend) | Coleman | 1 | 28 | 5.13K | Jan 1993 – Apr 1995 |