| Guerra, Avelino G-4-11540 | Lopeno (Wilcox E) | — | 1 | 0 | 1.49M | Jan 1993 – Jul 2026 |
| Ramos, Baltazar G-4-11546 | Lopeno (Wilcox E) | Zapata | 1 | 0 | 1.18M | Jan 1993 – Jul 2026 |
| Ramirez, Manuel Ramos G-4-22896 | Lopeno ( Reklaw B) | — | 1 | 0 | 26.5K | Jan 1993 – Jul 2026 |
| Ramirez, Josefa G-4-30390 | Lopeno ( Reklaw B) | — | 1 | 0 | 472K | Jan 1993 – Jul 2026 |
| Ramirez, Blas G-4-93342 | Lopeno (Wilcox E) | Zapata | 1 | 0 | 2.42M | Jan 1993 – Jul 2026 |
| Guerra, Avelino G-4-117458 | Lopeno (Wilcox 9,600) | Zapata | 1 | 0 | 1.07M | Jan 1993 – Jul 2026 |
| Ramos, Baltazar et AL G-4-120605 | Lopeno (Wilcox I) | Zapata | 1 | 0 | 1.63M | Jan 1993 – Jul 2026 |
| Ramirez, Federico G-4-127850 | Lopeno (Wilcox 9950) | Zapata | 1 | 0 | 8.4M | Jan 1993 – Jul 2026 |
| Guerra, Raul G-4-127855 | Lopeno (Wilcox 10450) | Zapata | 1 | 0 | 1.66M | Jan 1993 – Jul 2026 |
| Ramirez, M.R. G-4-129645 | Lopeno (Wilcox 10900) | Zapata | 1 | 0 | 3.21M | Jan 1993 – Jul 2026 |
| Ramirez, Josefa G-4-129648 | Lopeno (Wilcox 9100) | Zapata | 1 | 0 | 161K | Jan 1993 – Jul 2026 |
| Ramirez, M. R. G-4-130138 | Lopeno (Wilcox 8750) | Zapata | 1 | 0 | 2.01M | Jan 1993 – Jul 2026 |
| Serna, Donato G-4-134251 | Lopeno (Wilcox I FB2) | Zapata | 1 | 0 | 563K | Jan 1993 – Jul 2026 |
| Donato Serna G-4-134269 | Lopeno (Wilcox K) | Zapata | 1 | 0 | 77.9K | Jan 1993 – Jul 2026 |
| Tesoro-Yzaguirre G-4-137162 | Lopeno (Wilcox I) | Zapata | 1 | 0 | 525K | Jan 1993 – Jul 2026 |
| Guerra, Avelino G-4-149135 | Lopeno (Wilcox 9950) | Zapata | 1 | 0 | 327K | Mar 1994 – Jul 2026 |
| Ramos, Felix G-4-153559 | Lopeno (Wilcox 9950) | Zapata | 1 | 0 | 4.44M | Feb 1995 – Jul 2026 |
| Guerra, Raul G-4-161346 | Lopeno (Wilcox 9850) | Zapata | 1 | 0 | 8.54M | Dec 1996 – Jul 2026 |
| Guerra, Avelino G-4-161358 | Lopeno (Wilcox 10,200) | Zapata | 1 | 0 | 9.32M | Oct 1996 – Jul 2026 |
| Ramos, Felix G-4-161739 | Lopeno (Wilcox 9100) | Zapata | 1 | 0 | 1.46M | Jan 1997 – Jul 2026 |
| Fernando Munoz G. U. G-4-161962 | Lopeno (Wilcox 10,200) | Zapata | 1 | 0 | 6.18M | Nov 1996 – Jul 2026 |
| Guerra, Avelina G-4-163335 | Lopeno (Wilcox K) | Zapata | 1 | 0 | 7.3M | Feb 1997 – Jul 2026 |
| Ramos, Felix G-4-164394 | Lopeno (Wilcox 10,200) | Zapata | 1 | 0 | 4.04M | May 1997 – Jul 2026 |
| Ramirez, Josefa G-4-166019 | Lopeno (Wilcox 9850) | Zapata | 1 | 0 | 739K | Dec 1997 – Jul 2026 |
| Ramirez, Josefa G-4-166022 | Lopeno (Wilcox K) | Zapata | 1 | 0 | 2.09M | Dec 1997 – Jul 2026 |
| Ramirez, J. Est G-4-166763 | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 0 | 901K | Feb 1998 – Jul 2026 |
| Guerra, Raul G-4-166806 | Lopeno (Wilcox 9100) | Zapata | 1 | 0 | 1.05M | Nov 1997 – Jul 2026 |
| Munoz, Fernando G-4-167483 | Lopeno (Wilcox 10,200) | Zapata | 1 | 0 | 2.15M | Mar 1998 – Jul 2026 |
| Munoz, Fernando G-4-167488 | Lopeno (Wilcox 9850) | Zapata | 1 | 0 | 4.18M | Mar 1998 – Jul 2026 |
| Felicidad G-4-167767 | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 0 | 3.08M | Nov 1997 – Jul 2026 |
| Ramirez, Josefa G-4-168411 | Lopeno (Wilcox 9550) | Zapata | 1 | 0 | 125K | May 1998 – Jul 2026 |
| Ramirez, J. Est. G-4-169060 | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 0 | 2.9M | Mar 1998 – Jul 2026 |
| Guerra, Avelina G-4-170486 | Lopeno (Wilcox 10,200) | Zapata | 1 | 0 | 3.31M | Aug 1998 – Jul 2026 |
| Vela-Lopeno Minerals Ltd. G-4-171583 | Wildcat | Zapata | 1 | 0 | 0 | Dec 1998 – Jul 2026 |
| Ramirez, M. R. G-4-171958 | Lopeno (Wilcox 9,600) | Zapata | 1 | 0 | 1.48M | Dec 1998 – Jul 2026 |
| Guerra, Raul G-4-176543 | Lopeno (Wilcox 10,200) | Zapata | 1 | 0 | 2.66M | Dec 1999 – Jul 2026 |
| Ramirez, M. R. G-4-177583 | Lopeno (Wilcox 9900) | Zapata | 1 | 0 | 1.95M | May 2000 – Jul 2026 |
| Felicidad G-4-177796 | Wildcat | Zapata | 1 | 0 | 0 | May 2000 – Jul 2026 |
| Guerra, Raul G-4-177815 | Lopeno (Wilcox 8,000) | Zapata | 1 | 0 | 4.64M | Jun 2000 – Jul 2026 |
| Guerra, Raul G-4-178068 | Lopeno (Wilcox 8,000) | Zapata | 1 | 0 | 2.27M | Apr 2000 – Jul 2026 |
| Guerra, Raul G-4-178277 | Lopeno (Wilcox 8,000) | Zapata | 1 | 0 | 580K | Feb 2000 – Jul 2026 |
| Ramirez, M. R. G-4-179188 | Lopeno (Wilcox 10900) | Zapata | 1 | 0 | 2.5M | Jul 2000 – Jul 2026 |
| Ramos, Baltazar G-4-179209 | Lopeno (Wilcox K) | Zapata | 1 | 0 | 6.25M | Apr 2000 – Jul 2026 |
| Guerra, Raul G-4-179323 | Lopeno (Wilcox 10,200) | Zapata | 1 | 0 | 6.94M | May 2000 – Jul 2026 |
| Guerra, Avelino G-4-179421 | Lopeno (Wilcox 10,200) | Zapata | 1 | 0 | 1.14M | Sep 2000 – Jul 2026 |
| Ramirez, M. R. G-4-179529 | Lopeno (Wilcox 10900) | Zapata | 1 | 0 | 2.89M | Jul 2000 – Jul 2026 |
| Guerra, Raul G-4-179660 | Lopeno (Wilcox 9550) | Zapata | 1 | 0 | 589K | May 2000 – Jul 2026 |
| Fernando Munoz Gas Unit G-4-179817 | Lopeno (Wilcox 9950) | Zapata | 1 | 0 | 3.49M | Jun 2000 – Jul 2026 |
| Munoz, Fernando G-4-179844 | Lopeno (Wilcox 9550) | Zapata | 1 | 0 | 989K | Sep 2000 – Jul 2026 |
| Ramirez, Josefa G-4-11537 | Lopeno (Wilcox 8,500) | — | 1 | 0 | 0 | Jan 1993 – Jul 2026 |