| Mercer G-6-247650 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 1.53K | 377K | Oct 2008 – Aug 2026 |
| Heisman G-6-231102 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 1.52K | 238K | Jun 2007 – Aug 2026 |
| Blocker Heirs G-6-243333 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 1.51K | 178K | Sep 2008 – Aug 2024 |
| Callison G-6-238291 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 1.49K | 332K | May 2008 – Aug 2026 |
| Raider Power State O-10-45794 | Vin Fisher Operating, Inc. only | Block a-34, Northwest (Glorieta) | Andrews | 1 | 1.46K | 0 | Nov 2014 – Jun 2015 |
| Welder "J" G-2-175887 | Hilcorp Energy Company only | Phil Power (4830) | Goliad | 1 | 1.45K | 1.58M | May 1999 – Aug 2015 |
| Aunt Mae Unit O-8-32726 | Nupower Energy, LLC only | Jones County Regular | Jones | 1 | 1.45K | 0 | Aug 2023 – Aug 2026 |
| Welder 'D' O-2-8419 | Wiser Oil Company, The only | Phil Power (5700) | Refugio | 1 | 1.44K | 0 | Mar 1998 – Jul 1998 |
| Gill, H.H. G-6-229753 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 1.41K | 197K | Apr 2007 – Jun 2019 |
| Baldwin Heirs CV G-6-230844 | Enpower Resources Inc. only | Oak Hill (Cotton Valley) | Harrison | 1 | 1.36K | 242K | Aug 2007 – Jan 2019 |
| Blocker Heirs G-6-218361 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 1.36K | 226K | Nov 2005 – Aug 2015 |
| Bosh G-6-231096 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 1.34K | 271K | Mar 2007 – Aug 2026 |
| Moore, Garvin O-7-8572 | Powerline Energy Corp. only | East Texas | Rusk | 20 | 1.3K | 44 | by Jan 1993 – Jun 1996 |
| Powers, Phil O-2-1406 | Eagleford Operating, Inc. only | Refugio Old | Refugio | 6 | 1.29K | 10.7K | Jan 1996 – Apr 2003 |
| Cadenhead G-6-243197 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 1.24K | 339K | Jun 2008 – Aug 2026 |
| Welder "D" G-2-159747 | Wiser Oil Company, The only | Phil Power (5050 Frio) | Refugio | 1 | 1.23K | 840K | Jul 1996 – Aug 2000 |
| Callison G-6-239115 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 1.17K | 319K | Apr 2008 – Aug 2026 |
| Welder "D" O-2-8411 | Wiser Oil Company, The only | Phil Power (5215) | Refugio | 2 | 1.14K | 5.82K | May 1998 – Jul 1999 |
| Texas Power & Light Company G-5-187256 | United Oil & Shale LLC only | Trinidad, S. E. (Travis Peak) | Henderson | 1 | 1.12K | 272K | Jan 2002 – May 2026 |
| Mercer G-6-242446 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 1.1K | 188K | Aug 2008 – Jul 2024 |
| Welder "C" G-2-172720 | Hilcorp Energy Company only | Phil Power (5200-B) | Refugio | 1 | 959 | 309K | Dec 1998 – Apr 2002 |
| Mercer G-6-246684 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 944 | 443K | Jan 2009 – Nov 2025 |
| Poehls O-9-16602 | Powerflex Services Inc. only | Jim Adams (Fry) | Runnels | 1 | 942 | 0 | Feb 2008 – Feb 2012 |
| Blocker Heirs G-6-242145 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 909 | 318K | Jun 2008 – Sep 2025 |
| Mercer G-6-243291 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 898 | 233K | Oct 2008 – Aug 2026 |
| Welder "C" O-2-11271 | Remora Operating, LLC only | Phil Power (5000) | Refugio | 1 | 897 | 4.98K | Sep 2015 – Apr 2019 |
| Powers Unit "B" O-14-6693 | Natural Gas Anadarko Company only | Perryton, N. E. (Marmaton) | Ochiltree | 1 | 879 | 1.67K | by Jan 1993 – Sep 1994 |
| Welder 'C' G-2-250307 | Remora Operating, LLC only | Phil Power (4870) | Refugio | 1 | 871 | 52.9K | Aug 2006 – Feb 2017 |
| Bradley G-6-218711 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 870 | 298K | Oct 2005 – Dec 2019 |
| Shaw Gas Unit G-6-215332 | Enpower Resources Inc. only | Blocker (Cotton Valley) | Harrison | 1 | 866 | 194K | Aug 2005 – Feb 2016 |
| Callison G-6-242014 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 846 | 237K | Jul 2008 – Jan 2026 |
| TXL -BL- (NCT-C) O-10-29091 | Power, Rex J. only | Jess Burner (Delaware 3800) | Reeves | 1 | 831 | 7 | Mar 1994 – Aug 1995 |
| Shay, Mary A. O-2-5775 | Mueller Engineering Corp. only | Phil Power (5215) | Refugio | 1 | 831 | 10 | by Jan 1993 – Oct 1993 |
| Elam "14" O-11-71398 | Power Upp Midland 1 LLC only | Newsom (Yates) | Gaines | 1 | 820 | 0 | Sep 2024 – Aug 2026 |
| Powers G-13-157954 | PRC Operating, Inc. only | Dillard, SE. (Conglomerate) | Jack | 1 | 793 | 43.6K | Jan 1996 – Aug 2012 |
| Elam, W. B. G-11-203746 | Power Upp Midland 1 LLC only | Harris (Yates) | Gaines | 1 | 762 | 745K | May 2004 – Dec 2015 |
| Powers, et Al G-8-270187 | Place Oil and Gas Co. only | W.D.H. (Marble Falls) | Eastland | 1 | 738 | 96.9K | Jul 2012 – Aug 2026 |
| Moore, Sanders G-6-252751 | Enpower Resources Inc. only | Bethany (Travis Peak Cons.) | Harrison | 1 | 711 | 214K | Mar 2010 – Jul 2019 |
| Powers 652 G-14-213904 | EOG Resources, Inc. only | Northrup (Cleveland) | Ochiltree | 1 | 702 | 103K | Nov 2005 – Nov 2015 |
| Power Trust/T Bar-X O-5-4433 | Giant NRG Co., LP only | Ici (Georgetown) | Robertson | 1 | 689 | 0 | Jul 2020 – Sep 2025 |
| Powers, E.C. G-6-196922 | TGNR Panola LLC only | Carthage (Cotton Valley) | Panola | 1 | 687 | 939K | Jul 2003 – Aug 2026 |
| Scott, JO Ann G-6-232294 | Enpower Resources Inc. only | Carthage, North (Cotton Valley) | Harrison | 1 | 685 | 199K | Aug 2007 – Jun 2026 |
| Texas Power & Light Company G-5-182147 | United Oil & Shale LLC only | Trinidad, S. E. (Travis Peak) | Henderson | 1 | 680 | 314K | Apr 2001 – Mar 2025 |
| Welder 'C' 25 O-2-11080 | Remora Operating, LLC only | Phil Power (5050 Frio) | Refugio | 1 | 654 | 34.1K | Aug 2015 – Dec 2016 |
| Baldwin Heirs G-6-170836 | Enpower Resources Inc. only | Blocker (Travis Peak) | Harrison | 1 | 652 | 354K | Jun 1998 – Nov 2018 |
| Welder "C" G-2-277969 | Hilcorp Energy Company only | Phil Power (5000) | Refugio | 1 | 642 | 12.3K | Feb 2015 – Aug 2015 |
| Shay "B" G-2-173233 | Hilcorp Energy Company only | Phil Power (5100) | Refugio | 1 | 612 | 800K | Jul 1998 – Dec 2013 |
| Texas Power & Light Company G-5-179984 | United Oil & Shale LLC only | Trinidad, S. E. (Travis Peak) | Henderson | 1 | 606 | 347K | Oct 2000 – Nov 2024 |
| Shusa 14 G-11-212926 | Power Upp Midland 1 LLC only | Harris (Yates) | Gaines | 1 | 595 | 545K | Aug 2005 – Dec 2015 |
| Welder J G-2-166884 | Hilcorp Energy Company only | Phil Power (5200-B) | Goliad | 1 | 583 | 186K | Dec 1997 – Feb 1999 |