| Ramirez, J. Est. G-4-169065 | Dominion Expl. & Prod., Inc. | Bob West, North (LZ-5) | Zapata | 1 | 3.28K | 1.2M | Mar 1998 – Mar 2001 |
| Ramirez, J. Est. G-4-169069 | Dominion Expl. & Prod., Inc. | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 2.22K | 837K | Mar 1998 – Jun 2003 |
| Ramirez, J. Estate G-4-166990 | Dominion Expl. & Prod., Inc. | Bob West, North (LZ-5) | Zapata | 1 | 1.82K | 583K | Feb 1998 – May 2001 |
| Ramirez, J. Est. G-4-166051 | Dominion Expl. & Prod., Inc. | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 1K | 359K | Feb 1998 – Aug 2003 |
| Fernando Munoz G-4-131216 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 8825) | Zapata | 1 | 704 | 3.27M | by Jan 1993 – Jun 2000 |
| Guerra, Raul G-4-169437 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9550) | Zapata | 1 | 107 | 1.52M | Feb 1998 – Apr 2000 |
| Ramirez, Josefa G-4-158629 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 10,200) | Zapata | 1 | 62 | 2.22M | May 1996 – May 2000 |
| Guerra, Raul G-4-132022 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 8825) | Zapata | 1 | 37 | 778K | Jun 1996 – Mar 2000 |
| Ramirez, M. R. G-4-165808 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9850) | Zapata | 1 | 37 | 2.66M | Dec 1997 – Jul 2002 |
| Ramos, Felix G-4-125866 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9900) | Zapata | 1 | 35 | 2.27M | by Jan 1993 – May 2000 |
| Guerra, Raul G-4-166508 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9850) | Zapata | 1 | 31 | 2.14M | Nov 1997 – Oct 2000 |
| Ramos, Felix G-4-164397 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9950) | Zapata | 1 | 28 | 1.63M | Sep 1997 – Aug 2000 |
| Guerra, Raul G-4-158684 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 10,200) | Zapata | 1 | 28 | 1.17M | May 1996 – Mar 2000 |
| Fernando Munoz Gas Unit G-4-180360 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox J) | Zapata | 1 | 14 | 389K | Nov 2000 – Apr 2001 |
| Guerra, Raul G-4-180431 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 8,000) | Zapata | 1 | 13 | 98K | Oct 2000 – Jan 2001 |
| Ramirez, M. R. G-4-178411 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9100) | Zapata | 1 | 13 | 16.2K | Aug 2002 – Sep 2002 |
| Guerra, Raul G-4-128998 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9950) | Zapata | 1 | 13 | 1.59M | by Jan 1993 – May 2000 |
| Guerra, Raul G-4-166807 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox F) | Zapata | 1 | 7 | 176K | Nov 1997 – May 2000 |
| Ramirez, Federico G-4-136183 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox I) | Zapata | 1 | 6 | 1.99M | by Jan 1993 – Nov 2000 |
| Guerra, Avelina G-4-172669 | Dominion Expl. & Prod., Inc. | Lopeno (Consolidated) | Zapata | 1 | 5 | 367K | Oct 1998 – Apr 2000 |
| Guerra, Raul G-4-11555 | Dominion Expl. & Prod., Inc. | Lopeno (10,100) | Zapata | 1 | 5 | 1.68M | by Jan 1993 – Oct 2002 |
| Guerra, Raul G-4-169438 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 10,200) | Zapata | 1 | 4 | 911K | Feb 1998 – May 2000 |
| Munoz, Fernando G-4-129649 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9550) | Zapata | 1 | 4 | 1.37M | by Jan 1993 – Jun 2002 |
| Ramirez, Federico G-4-137014 | Dominion Expl. & Prod., Inc. | Lopeno (11,250 Wilcox) | Zapata | 1 | 3 | 1.86M | by Jan 1993 – Jan 2005 |
| Ramirez, Manuel G-4-129644 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 10,150) | Zapata | 1 | 3 | 892K | by Jan 1993 – Nov 2000 |
| Ramirez, Blas G-4-169213 | Dominion Expl. & Prod., Inc. | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 2 | 100K | Jul 1998 – Apr 2005 |
| Fernando Munoz G-4-131884 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9850) | Zapata | 1 | 2 | 348K | by Jan 1993 – May 2000 |
| Ramirez, Josefa G-4-166024 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox J) | Zapata | 1 | 0 | 0 | — |
| Ramirez, Josefa G-4-166023 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox I) | Zapata | 1 | 0 | 0 | — |
| Guerra, Avelina G-4-165886 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 10,200) | Zapata | 1 | 0 | 0 | — |
| Guerra, Raul G-4-165688 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9850) | Zapata | 1 | 0 | 141K | Dec 1997 – Jan 1998 |
| Guerra, Raul G-4-173394 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9100) | Zapata | 1 | 0 | 0 | — |
| Guerra, Raul G-4-173389 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 7,900) | Zapata | 1 | 0 | 0 | — |
| Guerra, Avelina G-4-163336 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox I) | Zapata | 1 | 0 | 71.5K | Mar 1997 – Aug 1997 |
| Fernando Munoz G. U. G-4-161966 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox I) | Zapata | 1 | 0 | 0 | — |
| Lopeno "A" G-4-51171 | Dominion Expl. & Prod., Inc. | Lopeno ( 3,000) | Zapata | 1 | 0 | 0 | — |
| Guerra, Avelino G-4-161770 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9950) | Zapata | 1 | 0 | 0 | — |
| Guerra, Avelina G-4-172670 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9950) | Zapata | 1 | 0 | 0 | — |
| Guerra, Avelino G-4-161768 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox K) | Zapata | 1 | 0 | 0 | — |
| Guerra, Avelina G-4-172664 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox I) | Zapata | 1 | 0 | 0 | — |
| Guerra, Raul G-4-161351 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox E) | Zapata | 1 | 0 | 2.13M | Dec 1996 – Aug 2000 |
| Guerra, Raul G-4-161350 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9950) | Zapata | 1 | 0 | 0 | — |
| Lopeno "F" G-4-38805 | Dominion Expl. & Prod., Inc. | Lopeno ( Queen City Upper) | Zapata | 1 | 0 | 76.1K | Mar 1993 – Nov 1997 |
| Munoz, Fernando G-4-167489 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9950) | Zapata | 1 | 0 | 0 | — |
| Guerra, Raul G-4-172992 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9550) | Zapata | 1 | 0 | 361K | Jan 1999 – Feb 2003 |
| Guerra, Raul G-4-173386 | Dominion Expl. & Prod., Inc. | Lopeno, (Wilcox 7350) | Zapata | 1 | 0 | 0 | — |
| Guerra, Raul G-4-161349 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 8,000) | Zapata | 1 | 0 | 0 | — |
| Guerra, Raul G-4-173393 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 8,000) | Zapata | 1 | 0 | 0 | — |
| Guerra, Raul G-4-166805 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox 9550) | Zapata | 1 | 0 | 0 | — |
| Ramos, Felix G-4-153562 | Dominion Expl. & Prod., Inc. | Lopeno (Wilcox E) | Zapata | 1 | 0 | 785K | Feb 1995 – Jun 2000 |