| Fox O-2-11458 | Dynamic Production, Inc. only | Blanconia, South | Bee | 2 | 17.5K | 15.5K | Nov 2017 – Oct 2023 |
| Foxtrot O-10-49131 | Hannathon Petroleum II, LLC only | Jailhouse (Fusselman) | Glasscock | 1 | 16.9K | 44.3K | May 2017 – Aug 2026 |
| W. J. Fox 'A' O-2-10746 | Hilcorp Energy Company only | Hynes Ranch (7000) | Refugio | 1 | 16.9K | 48.4K | Jan 2014 – Sep 2015 |
| W. J. Fox 'A' O-2-11007 | Hilcorp Energy Company only | Hynes Ranch (FD-37) | Refugio | 1 | 16.9K | 20.7K | Oct 2015 – Mar 2021 |
| Fox G-13-249966 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Wise | 1 | 15.9K | 1.97M | Feb 2009 – Jul 2026 |
| Foxworth-Hearne O-13-26951 | Three P Operating Co.,gp, L.L.C. only | Newcastle (Mississippi) | Young | 1 | 15.6K | 9 | by Jan 1993 – Mar 2012 |
| Lambert, M. F. -C- O-2-3456 | H & D Operating Company only | Refugio-Fox (5800) | Refugio | 1 | 15.1K | 18.1K | by Jan 1993 – Apr 1998 |
| Fox Unit G-13-276817 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Montague | 1 | 14.9K | 675K | Aug 2009 – Aug 2026 |
| Fox, W. J. -A- O-2-5194 | Hilcorp Energy Company only | Hynes Ranch (5800 Frio Upper) | Refugio | 1 | 14.9K | 56.5K | Feb 1993 – Jan 2002 |
| Chew, W. D. Estate Oil Unit O-6-13395 | Texla Operating Company only | Green Fox, E. (Pettit Lower -B-) | Marion | 1 | 14.6K | 66.1K | Jan 1995 – Jan 2012 |
| Anthony, J. E. O-6-5803 | Fair Oil, Ltd. only | Green Fox (Pettit 6200) | Marion | 1 | 13.7K | 130K | by Jan 1993 – Apr 2007 |
| Fox G-13-237365 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Wise | 1 | 13.1K | 1.58M | Mar 2008 – Jul 2026 |
| Miguelita Scanio O-2-10419 | Acock/Anaqua Operating Co., LP only | Refugio-Fox (6450 Stringer) | Refugio | 2 | 13.1K | 104K | Nov 2012 – Mar 2020 |
| Fox O-10-24219 | P.o.&g. Operating, LLC only | Ward, South | Ward | 2 | 12.4K | 74.7K | by Jan 1993 – Jul 2025 |
| Scanio, Miguelita O-2-8524 | Cummins & Walker Oil Co., Inc. only | Refugio-Fox (6400) | Refugio | 1 | 12K | 37.5K | Feb 2000 – Aug 2001 |
| Fox, W. J. "A" O-2-8958 | Hilcorp Energy Company only | Hynes Ranch (FF-38 Sand) | Refugio | 1 | 11.7K | 53K | Apr 2005 – May 2006 |
| Grogan-Veach Unit G-6-223021 | RFE Operating, LLC only | Green Fox (Smith) | Marion | 1 | 11.6K | 381K | Jun 2006 – Aug 2026 |
| Scanio, Miguelita G-2-179352 | Cummins & Walker Oil Co., Inc. only | Refugio-Fox (6500) | Refugio | 1 | 11.5K | 56.6K | Jul 2000 – Mar 2001 |
| Fox O-3-19164 | Anadarko E&P Company LP only | Stone City (Austin Chalk) | Burleson | 1 | 11.4K | 27.7K | by Jan 1993 – Jan 2002 |
| Trejo G-4-290284 | Everest Resource Company only | Miller & Fox (Yegua 6200) | Jim Wells | 1 | 11K | 662K | Nov 2020 – Jul 2026 |
| Fox, Jeff S. G-13-226990 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 11K | 2.16M | Dec 2006 – Aug 2026 |
| Fox, Zina GU 1 Deep G-13-228420 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 10.3K | 1.44M | Mar 2007 – Aug 2026 |
| Chatten, Susie G-6-138373 | Fair Oil, Ltd. only | Green Fox (Pettit 6200) | Marion | 1 | 9.95K | 1.24M | by Jan 1993 – Nov 2008 |
| Fox "A" G-13-225783 | Arrowhead Productions, LP only | Newark, East (Barnett Shale) | Jack | 1 | 9.74K | 670K | Dec 2006 – May 2015 |
| Fox State Unit G-10-285425 | Apache Corporation only | Alpine High (Cons) | Reeves | 1 | 9.63K | 2.14M | Aug 2016 – Aug 2026 |
| Grogan-Veach O-6-12962 | RFE Operating, LLC only | Green Fox, S. (Pettit -B-) | Marion | 1 | 9.46K | 123K | by Jan 1993 – May 1999 |
| Miguelita Scanio G-2-269669 | Digital Operating Company LLC only | Refugio-Fox (6600) | Refugio | 1 | 9.15K | 255K | Nov 2012 – Mar 2018 |
| Fox G-13-197700 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Wise | 1 | 9.08K | 547K | Oct 2003 – Jul 2026 |
| Hooper, E. S. "B" O-6-13116 | Jamex, Inc. only | Green Fox, E. (Pettit -B-) | Marion | 2 | 8.8K | 50.1K | by Jan 1993 – Dec 1994 |
| Fox State Unit G-10-287054 | Apache Corporation only | Alpine High (Cons) | Reeves | 1 | 8.25K | 3.48M | Dec 2018 – Aug 2026 |
| Fox G-13-197780 | Lime Rock Resources IV-a, L.P. only | Newark, East (Barnett Shale) | Wise | 1 | 8.16K | 645K | Oct 2003 – Jul 2026 |
| Hooper, E. S. Unit -B- O-6-13396 | Texla Operating Company only | Green Fox, E. (Pettit Lower -B-) | Marion | 1 | 8.13K | 32.2K | Jan 1995 – Jan 2012 |
| Thompson G-4-166705 | Silver Fox Oil & Gas LLC only | Riverside, East (5900) | Nueces | 1 | 7.82K | 263K | Jan 1998 – Oct 2008 |
| Fox State Unit G-10-286700 | Apache Corporation only | Alpine High (Cons) | Reeves | 1 | 7.8K | 4.88M | Jun 2018 – Aug 2026 |
| W. J. Fox 'A' O-2-10431 | Hilcorp Energy Company only | Hynes Ranch (7160) | Refugio | 1 | 7.75K | 134K | Jan 2013 – Sep 2014 |
| Chronister, Lora Unit G-6-96858 | Fair Oil, Ltd. only | Green Fox (Smith) | Marion | 1 | 7.71K | 546K | by Jan 1993 – Dec 2002 |
| Heard, Georgia O-2-3452 | Pace Production Co. only | Refugio-Fox (4800) | Refugio | 1 | 7.7K | 2.69K | by Jan 1993 – Jun 1999 |
| W.D. Chew Estate Oil Unit O-6-12974 | Jamex, Inc. only | Green Fox, E. (Pettit -B-) | Marion | 1 | 7.35K | 14.5K | by Jan 1993 – Dec 1994 |
| Yeager, Agnes J. O-4-11661 | Fox, Hewitt B., Inc. only | Clara Driscoll, SE. (Frio 5700) | Nueces | 1 | 7.23K | 19 | by Jan 1993 – May 1998 |
| C.I.T.E. Fox/Inland O-8-29307 | Interstate Explorations LLC only | Adams (Duffer, Lower) | Eastland | 1 | 7.1K | 200K | Oct 2003 – Aug 2026 |
| Hooper, E. S. Oil Unit "A" O-6-13398 | Texla Operating Company only | Green Fox, E. (Pettit Lower -B-) | Marion | 1 | 7.06K | 23.3K | Jan 1995 – Jan 2012 |
| Palafox-State 1335 G-4-272995 | Lewis Petro Properties, Inc. only | Owen (Olmos) | Webb | 1 | 7.06K | 1.45M | Aug 2013 – Aug 2026 |
| Miller "B" G-4-144767 | Silver Fox Oil & Gas LLC only | Riverside, East (6400 Frio) | Nueces | 1 | 6.98K | 339K | Jul 1993 – Mar 1996 |
| Thompson O-4-12753 | Silver Fox Oil & Gas LLC only | Riverside, East (6400 Frio) | Nueces | 1 | 6.79K | 0 | Feb 1998 – Oct 1999 |
| Fox State Unit G-10-287063 | Apache Corporation only | Alpine High (Cons) | Reeves | 1 | 6.71K | 3.75M | Jan 2019 – Aug 2026 |
| Fox, Zina GU 2 G-13-210520 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 6.51K | 1.98M | Jun 2005 – Jun 2026 |
| Fox Tail "A" O-10-25027 | Whiting Oil and Gas Corporation only | Cheyenne (Capitan) | Winkler | 2 | 6.48K | 2.62K | by Jan 1993 – Dec 2004 |
| Nelson Hill Unit O-6-12019 | Texla Operating Company only | Green Fox, E. (Pettit -B-) | Marion | 2 | 6.34K | 33.1K | by Jan 1993 – Jan 2012 |
| Jeff S. Fox (SA) G-13-268428 | BKV Barnett, LLC only | Newark, East (Barnett Shale) | Wise | 1 | 6.01K | 4.1M | Oct 2012 – Aug 2026 |
| Fox, W. J. -A- G-2-271692 | Hilcorp Energy Company only | Refugio-Fox (6600) | Refugio | 1 | 5.98K | 249K | Sep 2013 – Dec 2017 |