| Adams-Houghton G-4-159083 | Magnolia City, N. (Seg a 4000) | Jim Wells | 1 | 0 | 101K | Jun 1996 – Jul 2026 |
| Welder-Ford "A" G-4-169645 | Plymouth (6500) | San Patricio | 1 | 0 | 816K | Jul 1998 – Aug 2003 |
| Welder "D" O-4-12595 | Portilla (Frio) | — | 1 | 0 | 0 | Sep 1996 – Aug 2003 |
| Moc-Welder "C" G-4-180677 | Plymouth (6470 Frio) | San Patricio | 1 | 0 | 69.2K | Dec 2000 – Feb 2003 |
| Adams et al "A" G-4-158660 | Magnolia City, North (3400) | Jim Wells | 1 | 0 | 186K | May 1996 – Oct 2001 |
| Thomas-Brown G-4-177241 | Taft (7300) | San Patricio | 1 | 0 | 229K | Feb 2000 – Sep 2001 |
| Martin-Volz G-4-174951 | Hereford (Lobo) | Webb | 1 | 0 | 82.6K | Oct 1999 – May 2001 |
| Welder - Ford "C" G-4-174501 | Taft (4300) | San Patricio | 1 | 0 | 153K | Sep 1999 – May 2001 |
| Brittain-Mayo Gas Unit G-4-174078 | Taft, West (6600 Frio) | San Patricio | 1 | 0 | 181K | Jul 1999 – May 2001 |
| Brittain-Mayo Unit G-4-173029 | Taft, West (5900) | San Patricio | 1 | 0 | 124K | Mar 1999 – May 2001 |
| Welder "D" O-4-12858 | Portilla (7000-B Sand) | San Patricio | 1 | 10.3K | 107K | Jul 1999 – Apr 2001 |
| Welder "D" G-4-153772 | Portilla (4050) | San Patricio | 1 | 0 | 283K | Mar 1995 – Sep 2000 |
| Smothers-Odem G-4-175009 | Ewing(oakville) | San Patricio | 1 | 0 | 54.4K | Oct 1999 – Sep 2000 |
| Brown, Thomas G-4-172167 | Taft (7400 Andrew) | San Patricio | 1 | 0 | 1.04M | Jan 1999 – Feb 2000 |
| Brown, Thomas G-4-177199 | Taft (7600) | San Patricio | 1 | 0 | 21.2K | Dec 1999 – Feb 2000 |
| Welder-Ford "A" G-4-174225 | Plymouth (6600) | San Patricio | 1 | 0 | 56K | Aug 1999 – Dec 1999 |
| Adams et al "A" G-4-173658 | Magnolia City, N. (Het. 2700) | Jim Wells | 1 | 0 | 13.8K | Jun 1999 – Nov 1999 |
| Welder "A" G-4-163338 | Sinton, North (3770 Peanut) | San Patricio | 1 | 0 | 352K | Apr 1997 – May 1999 |
| Welder "C" G-4-158430 | Sinton, North (1600 Miocene) | San Patricio | 1 | 0 | 0 | Apr 1996 – May 1999 |
| Welder "A" G-4-159853 | Sinton, North (3300 a Punch) | San Patricio | 1 | 0 | 316K | Jul 1996 – Feb 1999 |
| Welder "C" G-4-163836 | Sinton, North (Ztur) | San Patricio | 1 | 0 | 171K | May 1997 – Feb 1999 |
| Welder "G" O-4-12768 | Sinton, North (2050) | San Patricio | 1 | 367 | 42 | Dec 1997 – Sep 1998 |
| Welder "J" G-4-167300 | Sinton, North | San Patricio | 1 | 0 | 71.6K | Feb 1998 – Sep 1998 |
| Lundberg Est. G-4-132591 | Taft, East (6300 Frio) | San Patricio | 1 | 0 | 0 | Jan 1993 – Aug 1998 |
| Lundberg Est. G-4-135083 | Taft (3700 Catahoula) | San Patricio | 1 | 0 | 0 | Jan 1993 – Jul 1998 |
| Lundberg Est. G-4-135082 | Taft, East (3900 Catahoula) | San Patricio | 1 | 0 | 0 | Jan 1993 – Jul 1998 |
| Welder, R. H. -G- G-4-91794 | Portilla (3500) | San Patricio | 1 | 0 | 0 | Jan 1993 – Apr 1998 |
| Welder "C" G-4-156269 | Sinton, North (Ztur) | San Patricio | 1 | 0 | 57.6K | Sep 1995 – Apr 1998 |
| Welder "C" O-4-12229 | Sinton, North (Rob Sd.) | San Patricio | 2 | 5.71K | 16.9K | Jan 1993 – Mar 1998 |
| Welder "A" G-4-155358 | Sinton, North (3300 a Punch) | San Patricio | 1 | 0 | 380K | Jul 1995 – Dec 1997 |
| Welder "G" G-4-159071 | Sinton, North (Shallow) | San Patricio | 1 | 0 | 8.25K | Apr 1996 – Jul 1997 |
| Welder "D" O-4-2173 | Portilla (7100 Sand) | San Patricio | 8 | 0 | 0 | Jan 1993 – Sep 1996 |
| Adams-Houghton O-4-12537 | Magnolia City, N. (Frio 4900) | Jim Wells | 1 | 2.06K | 391 | Mar 1996 – Aug 1996 |
| Adams et. al. "A" G-4-156325 | Magnolia City, N. (5050 Kona) | Jim Wells | 1 | 0 | 100K | Sep 1995 – Aug 1996 |
| Welder "A" G-4-149763 | Sinton, North (4950) | San Patricio | 1 | 0 | 347K | Apr 1994 – Jul 1996 |
| City of Sinton O-4-11960 | Sinton, North (5580) | San Patricio | 1 | 6.43K | 21K | Jan 1993 – Jun 1996 |
| Welder "E" G-4-144035 | Sinton, North (2400) | San Patricio | 1 | 0 | 103K | Jan 1993 – Jun 1996 |
| Welder "G" O-4-12053 | Sinton, North (4700 Sand) | San Patricio | 1 | 0 | 86 | Jan 1993 – Jun 1996 |
| Welder "E" G-4-138706 | Sinton, North (2400) | San Patricio | 1 | 0 | 96.3K | Jan 1993 – Jun 1996 |
| Adams-Houghton G-4-157253 | Magnolia City, North (5230) | Jim Wells | 1 | 0 | 59.5K | Jan 1996 – Jun 1996 |
| Welder "G" G-4-139812 | Sinton, North (Ztur) | San Patricio | 1 | 0 | 50.6K | Jan 1993 – Apr 1996 |
| Adams et al. "A" G-4-154948 | Magnolia City, N. (5800 Napali) | Jim Wells | 1 | 0 | 16.7K | Jun 1995 – Jan 1996 |
| Adams-Houghton G-4-155442 | Magnolia City, N. (5420 Tom) | Jim Wells | 1 | 0 | 92.1K | Aug 1995 – Jan 1996 |
| Adams-Houghton G-4-154323 | Magnolia City, N. (5420 Tom) | Jim Wells | 1 | 0 | 182K | Feb 1995 – Jan 1996 |
| Adams, N. O. G-4-43192 | Magnolia City, N. (Seg a 3770) | — | 1 | 0 | 0 | Jan 1993 – Nov 1995 |
| Welder "A" G-4-155175 | Sinton, North (2150 Fuente) | San Patricio | 1 | 0 | 16.2K | Jun 1995 – Nov 1995 |
| Welder "A" G-4-152570 | Sinton, North (5550) | San Patricio | 1 | 0 | 43.9K | Dec 1994 – Oct 1995 |
| Welder "C" G-4-150292 | Shazamm (8050 Luke) | San Patricio | 1 | 0 | 203K | Jul 1994 – Aug 1995 |
| Welder "A" G-4-153486 | Sinton, North (3500) | San Patricio | 1 | 0 | 38.2K | Feb 1995 – Jul 1995 |
| Welder "A" G-4-151702 | Sinton, North (5600) | San Patricio | 1 | 0 | 20.8K | Oct 1994 – Feb 1995 |