| Garcia G-4-178225 | Tecolote, West (2200) | Jim Wells | 1 | 0 | 79.4K | Jun 2000 – Jul 2026 |
| Rehmet "A" G-4-89754 | Tecolote (Frio 3300) | Jim Wells | 1 | 0 | 40.3K | Jan 1993 – Jun 2011 |
| Copano Bay State G-4-232417 | Fulton Beach, W. (5100 Miocene) | Aransas | 1 | 0 | 156K | Apr 2007 – Oct 2009 |
| Copano Bay State O-4-13546 | Fulton Beach, West (K-3) | Aransas | 1 | 0 | 0 | Sep 2008 – Jul 2009 |
| Stelzig - Zwerneman G-4-73254 | Amargosa (2700) | Jim Wells | 1 | 0 | 100K | Jan 1993 – Apr 2008 |
| Stelzig-Zwernaman "A" G-4-93620 | Amargosa (2700) | Jim Wells | 1 | 0 | 38.6K | Jan 1993 – Apr 2008 |
| Copano Bay State O-4-13440 | Fulton Beach, West (6040) | Aransas | 1 | 358 | 9.33K | Sep 2006 – Jan 2008 |
| Copano Bay State G-4-191684 | Fulton Beach, W. (Miocene 2) | Aransas | 1 | 0 | 228K | May 2002 – Dec 2007 |
| Freeborn, Sidney et AL G-4-94493 | Amargosa, West (Carrl, UP) | Jim Wells | 1 | 0 | 55.3K | Jan 1993 – Aug 2007 |
| Copano Bay State G-4-147015 | Fulton Beach, W. (5100 Miocene) | Aransas | 1 | 0 | 914K | Oct 1993 – Sep 2006 |
| Copano Bay State G-4-176086 | Fulton Beach, W. (Miocene 4) | Aransas | 1 | 0 | 208K | Oct 1999 – Sep 2006 |
| Southwest Texas Corp G-4-206335 | Wildcat | Duval | 1 | 0 | 11.6K | Aug 2004 – Oct 2004 |
| Southwest Texas Corp. O-4-13082 | Ben Santos (Cole, Middle) | Duval | 1 | 519 | 2.75K | Apr 2002 – Sep 2002 |
| Southwest Texas Corp. O-4-12950 | Wildcat | Duval | 1 | 0 | 0 | Jun 2000 – Sep 2002 |
| Garcia O-4-12805 | Alfred (3300) | Jim Wells | 1 | 3.94K | 16.8K | Nov 1998 – Aug 2000 |
| Rehmet G-4-92717 | Tecolote, W. (2700 Het.) | Jim Wells | 1 | 0 | 0 | Jan 1993 – Aug 2000 |
| Baker, A. J., Heirs G-4-14610 | Teresa (3110) | — | 1 | 0 | 19.8K | Jan 1993 – Aug 2000 |
| McGill, J. C. G-4-59111 | Amargosa (2700) | — | 1 | 0 | 24.8K | Jan 1993 – Nov 1999 |
| Southwest Texas Corp. G-4-154114 | Realitos, East (6430 SD) | Duval | 1 | 0 | 118K | Feb 1995 – Jan 1999 |
| Freeborn, Sidney et AL G-4-70646 | Amargosa (2300) | — | 1 | 0 | 0 | Jan 1993 – Dec 1998 |
| Rehmet -A- G-4-59058 | Tecolote, West (Stillwell) | — | 1 | 0 | 0 | Jan 1993 – Dec 1998 |
| Baldwin Nash Young G-3-122100 | Bell Lake (9800) | Brazoria | 1 | 0 | 167K | Jan 1993 – Apr 1998 |
| Oliphint G-4-153925 | Bloomberg (Frio 4600) | Hidalgo | 1 | 0 | 619 | Feb 1995 – Apr 1995 |
| Copano Bay State O-4-961 | Fulton Beach, West (A-2) | Aransas | 1 | 2.82K | 8.22K | Jan 1993 – Jan 1995 |
| Copano Bay State G-4-69320 | Fulton Beach, West (A-4) | Aransas | 1 | 0 | 81.7K | Jan 1993 – Jan 1995 |
| Copano Bay State G-4-69915 | Fulton Beach, West (A-3) | Aransas | 1 | 0 | 15.2K | Jan 1993 – Nov 1994 |
| Copano Bay State G-4-62044 | Fulton Beach, West (A-2) | Aransas | 1 | 0 | 0 | Jan 1993 – Oct 1994 |
| Copano Bay State G-4-140799 | Fulton Beach, West (E Upper) | Aransas | 1 | 0 | 33.7K | Jan 1993 – Oct 1993 |