| Williams, J. D. "D" O-3-23140 | Magnum Engineering Company | Dayton, North (5000 Sand) | Liberty | 5 | 262K | 151K | Oct 1996 – Mar 2026 |
| Deering, J. A. Tr. -N- O/A O-3-1173 | Magnum Engineering Company | Dayton, North (5000 Sand) | Liberty | 9 | 162K | 135K | Jan 1993 – Apr 2026 |
| Benavides, Rosa -A- O-4-8817 | Magnum Engineering Company | Jasper-Webb (Yegua 3500) | Webb | 1 | 159K | 21 | Jan 1993 – Mar 2026 |
| Williams, J. D. -C- O-3-22711 | Magnum Engineering Company | Dayton, North (5000 Sand) | Liberty | 2 | 158K | 63.7K | Apr 1995 – Mar 2026 |
| Williams, J.D. -B- O-3-20714 | Magnum Engineering Company | Dayton, North (5000 Sand) | Liberty | 4 | 132K | 193K | Feb 1993 – Apr 2026 |
| Baldwin, R. B. -B- O/A O-3-1171 | Magnum Engineering Company | Dayton, North (5000 Sand) | Liberty | 1 | 73K | 1.13K | Jan 1993 – Feb 2024 |
| Williams, J. D. O-3-1177 | Magnum Engineering Company | Dayton, North (5000 Sand) | Liberty | 9 | 54.1K | 8.91K | Jan 1993 – Jan 2018 |
| Cox, Thelma O-11-18470 | Magnum Engineering Company | Ackerly (Dean Sand) | Dawson | 1 | 52.3K | 26.7K | Jan 1993 – Mar 2026 |
| Deering, J. A. Tr. -N- O/A O-3-23738 | Magnum Engineering Company | Dayton, North (Yegua EY-1) | Liberty | 1 | 45.2K | 161K | Nov 1999 – Apr 2026 |
| Coleman-Dubose O-11-17092 | Magnum Engineering Company | Ackerly (Dean Sand) | Dawson | 1 | 24.6K | 40.5K | Jan 1993 – Jan 2019 |
| Green O-11-62430 | Magnum Engineering Company | Ackerly (Dean Sand) | Dawson | 1 | 24K | 582 | Jan 1993 – Sep 2007 |
| Baldwin, R. B. -C- O/A O-3-1172 | Magnum Engineering Company | Dayton, North (5000 Sand) | Liberty | 4 | 22.4K | 2.27K | Jan 1993 – Jan 2010 |
| Parr, Hilda O-4-10945 | Magnum Engineering Company | Orcones (Hockley-Woodley) | Duval | 1 | 20.4K | 21K | Jan 1993 – Oct 2001 |
| Sanders O-3-19066 | Magnum Engineering Company | Pheasant (McDonald) | Matagorda | 1 | 19.6K | 21 | Jan 1993 – Mar 2026 |
| Stokes O-11-62152 | Magnum Engineering Company | Ackerly (Dean Sand) | Martin | 1 | 18.4K | 27.7K | Jan 1993 – Apr 2016 |
| Crockett O-11-62431 | Magnum Engineering Company | Ackerly (Dean Sand) | Martin | 1 | 17.7K | 41.2K | Jan 1993 – May 2014 |
| Martinez O-4-10418 | Magnum Engineering Company | Rincon, North (4350) | Starr | 5 | 15.8K | 63.1K | Jan 1993 – Jun 1998 |
| Garza, Juan A. et Al G-4-111666 | Magnum Engineering Company | San Manuel (9600) | Hidalgo | 1 | 13.6K | 1.06M | Jan 1993 – Jan 2023 |
| Zant O-11-62249 | Magnum Engineering Company | Ackerly (Dean Sand) | Martin | 1 | 11.5K | 27.9K | Jan 1993 – Nov 2007 |
| Felder, T.J. et Al O-3-20305 | Magnum Engineering Company | Wharton, S. (Frio 6000) | Wharton | 1 | 10.6K | 6.57K | Jan 1993 – Aug 1996 |
| Wasson O-11-62699 | Magnum Engineering Company | Ackerly (Dean Sand) | Dawson | 1 | 10.5K | 47 | Jan 1993 – Oct 2000 |
| Zant "A" O-11-62213 | Magnum Engineering Company | Ackerly (Dean Sand) | Dawson | 1 | 8.97K | 18.7K | Jan 1993 – Aug 2008 |
| Algea Gas Unit G-2-212589 | Magnum Engineering Company | Theis, South(slick First) | Bee | 1 | 8.48K | 530K | Apr 2005 – May 2016 |
| Algea Gas Unit G-2-161800 | Magnum Engineering Company | Orangedale (Luling, Lower) | Bee | 1 | 7.26K | 1.72M | Jan 1997 – Mar 2005 |
| Felder, T.J. et Al O-3-22653 | Magnum Engineering Company | Wharton, S. (Felder) | Wharton | 1 | 5.18K | 2.93K | Feb 1995 – Feb 2000 |
| Felder, T. J. et Al O-3-7514 | Magnum Engineering Company | Wharton, S. (Frio 6300) | Wharton | 2 | 4.54K | 18 | Jan 1993 – Apr 2000 |
| England, Helen G-2-95349 | Magnum Engineering Company | Warmsley (10,350) | De Witt | 1 | 3.63K | 294K | Jan 1993 – Aug 2009 |
| Cuellar G-4-180481 | Magnum Engineering Company | Rosita (10,250) | Duval | 1 | 2.86K | 259K | Dec 2000 – Jul 2001 |
| Mahoney "A" O-11-62518 | Magnum Engineering Company | Ackerly (Dean Sand) | Martin | 2 | 2.83K | 14 | Jan 1993 – Sep 1998 |
| Deering, J. A. Tr. -D- G-3-132238 | Magnum Engineering Company | Dayton, North | Liberty | 1 | 2.39K | 304K | Jan 1993 – Dec 1996 |
| Miller, R. H. Fee NCT-1 O-3-1175 | Magnum Engineering Company | Dayton, North (5000 Sand) | Liberty | 1 | 2.24K | 0 | Nov 1998 – Feb 2005 |
| Hogg, Ima, Plantation O-3-10951 | Magnum Engineering Company | West Columbia | Brazoria | 3 | 1.7K | 13 | Jan 1993 – May 1994 |
| Deering, J. A., Tr. -N- O/A O-3-1153 | Magnum Engineering Company | Dayton, North | Liberty | 3 | 1.65K | 64 | Jul 1995 – Mar 2007 |
| Coates Energy Trust et Al G-4-130863 | Magnum Engineering Company | Rincon, North (Stray 3300) | Starr | 1 | 1.58K | 98.3K | Jan 1993 – Apr 1998 |
| Coates Energy Trust, Etal O-4-10716 | Magnum Engineering Company | Rincon, North (4350) | Starr | 1 | 1.55K | 7.91K | Jan 1993 – Nov 1993 |
| Coates Energy Trust et Al G-4-123212 | Magnum Engineering Company | San Manuel (8650) | Hidalgo | 1 | 1.4K | 228K | Jan 1993 – Oct 2014 |
| Algea G-2-165204 | Magnum Engineering Company | Malcomb (3608 Hockley) | Bee | 1 | 830 | 35.6K | Aug 1997 – Jan 1998 |
| Deering, J. A. Tr. -D- G-3-132534 | Magnum Engineering Company | Dayton, North | Liberty | 1 | 778 | 46.4K | Jan 1993 – May 1996 |
| Deering, J. A., Tr. -O- O/A O-3-8738 | Magnum Engineering Company | Dayton, North (5000 Sand) | Liberty | 9 | 616 | 4 | May 1994 – Oct 1994 |
| Parr, G. A. G-4-31234 | Magnum Engineering Company | Orcones (Delores) | Duval | 1 | 401 | 147K | Jan 1993 – May 1999 |
| Zant "B" O-11-62432 | Magnum Engineering Company | Ackerly (Dean Sand) | Martin | 1 | 325 | 304 | Jan 1993 – Nov 1996 |
| Burns Trustee "A" O-11-62398 | Magnum Engineering Company | Ackerly (Dean Sand) | Martin | 1 | 278 | 90 | Jan 1993 – Oct 1994 |
| State Tract 691 G-4-90062 | Magnum Engineering Company | Saxet ( 2,600 Lagarto) | Nueces | 1 | 83 | 884K | Jan 1993 – May 2008 |
| Williams, J. D. -C- G-3-155453 | Magnum Engineering Company | Dayton, North (Miocene 2400) | Liberty | 1 | 39 | 72.2K | Jun 1995 – Nov 1997 |
| Griffin "E" O-11-65403 | Magnum Engineering Company | Hobo, N. (Pennsylvanian) | Borden | 1 | 24 | 3 | Feb 1993 – Jun 1993 |
| Turk, Farley B. et. Al. G-2-154632 | Magnum Engineering Company | Farley Turk (3800) | Jackson | 1 | 6 | 12K | Apr 1995 – Mar 1996 |
| Clarkson - Hardwicke G-4-133348 | Magnum Engineering Company | Odem, North (5400) | San Patricio | 1 | 0 | 0 | — |
| Garza, Juan G-4-119599 | Magnum Engineering Company | San Manuel (8350) | Hidalgo | 1 | 0 | 0 | — |
| Deering, J. A. Unit K O/A O-3-9907 | Magnum Engineering Company | Dayton, North (5000 Sand) | Liberty | 1 | 0 | 0 | — |
| Deering, J. A. Unit -G- O/A O-3-9912 | Magnum Engineering Company | Dayton, North (5000 Sand) | Liberty | 1 | 0 | 0 | — |