| Ramos, Baltazar et Al G-4-120605 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 11 | 1.63M | by Jan 1993 – May 2026 |
| Ramos, Baltazar G-4-11546 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 11 | 1.18M | by Jan 1993 – May 2026 |
| Ramirez, Josefa G-4-222933 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 11 | 138K | Sep 2006 – Apr 2011 |
| Guerra, Raul G-4-166806 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 11 | 1.05M | Nov 2000 – May 2026 |
| Guerra, Avelino G-4-11540 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 10 | 1.49M | by Jan 1993 – Feb 2025 |
| Guerra, Avelino G-4-201377 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 10 | 3.3M | Dec 2002 – Nov 2016 |
| Serna, Donato G-4-191625 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 10 | 990K | Apr 2002 – May 2026 |
| Ramos, Baltazar G-4-188134 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 9 | 2.06M | Feb 2002 – May 2026 |
| Serna, Donata G-4-189565 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 7 | 1.21M | May 2002 – May 2026 |
| Munoz, Fernando G-4-242203 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 7 | 1.22M | Aug 2008 – May 2026 |
| Guerra, Avelina G-4-170486 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 5 | 3.31M | Aug 1998 – May 2026 |
| Tesoro-Yzaguirre G-4-137162 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 5 | 525K | by Jan 1993 – May 2003 |
| Ramirez, Josefa G-4-30390 | Vantage Operating II, LLC | Lopeno ( Reklaw B) | Zapata | 1 | 5 | 472K | by Jan 1993 – May 2026 |
| Ramirez, Josefa G-4-129648 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 4 | 161K | Dec 2002 – Apr 2026 |
| Munoz, Fernando G-4-222577 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 3 | 639K | Jul 2006 – Jun 2018 |
| Avelino Guerra Gas Unit NO.2 G-4-179968 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 3 | 347K | Jun 2002 – May 2026 |
| Munoz, Fernando G-4-179844 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 3 | 989K | Oct 2000 – May 2026 |
| Ramirez, Josefa G-4-166019 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 3 | 739K | Dec 1997 – May 2026 |
| Ramirez, Federico G-4-182159 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 2 | 3.39M | Feb 2001 – May 2026 |
| Serna, Donato G-4-134251 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 2 | 563K | by Jan 1993 – Mar 2005 |
| Guerra, Avelino G-4-251689 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 2 | 1.52M | Oct 2008 – May 2026 |
| Yzaguirre G-4-199383 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 2 | 2.69M | Jan 2004 – May 2026 |
| Donato Serna G-4-134269 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 1 | 77.9K | by Jan 1993 – Nov 1997 |
| Ramirez, M. R. G-4-247396 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 1 | 65.5K | Dec 2008 – Mar 2020 |
| Ramirez, Manuel Ramos G-4-22896 | Vantage Operating II, LLC | Lopeno ( Reklaw B) | Zapata | 1 | 0 | 26.5K | Apr 2005 – Aug 2019 |
| Ramirez, M. R. G-4-197322 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 175K | Oct 2003 – Aug 2024 |
| Guerra, Raul G-4-202589 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 0 | — |
| Guerra, Raul G-4-222928 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 0 | — |
| Guerra, Raul G-4-236704 | Vantage Operating II, LLC | Lopeno ( Queen City Upper) | Zapata | 1 | 0 | 0 | — |
| Guerra, Raul G-4-202136 | Vantage Operating II, LLC | Lopeno ( Reklaw B) | Zapata | 1 | 0 | 9.56K | May 2004 – Jan 2013 |
| Guerra, Raul G-4-193818 | Vantage Operating II, LLC | Lopeno ( Reklaw B) | Zapata | 1 | 0 | 0 | — |
| Guerra, Raul G-4-192390 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 0 | — |
| Ramirez, M. R. G-4-171958 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 1.48M | Dec 1998 – May 2026 |
| Guerra, Raul G-4-192171 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 0 | — |
| Felicidad G-4-177796 | Vantage Operating II, LLC | Wildcat | Zapata | 1 | 0 | 0 | — |
| Guerra, Raul G-4-192170 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 164K | Nov 2002 – Aug 2024 |
| Ramirez, Federico G-4-183707 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 124K | Feb 2005 – Aug 2009 |
| Serna, Donato G-4-196181 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 612K | Jan 2003 – Feb 2013 |
| Guerra, Avelino G-4-245801 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 684K | Oct 2008 – May 2026 |
| Ramirez, Josefa G-4-11537 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 0 | — |
| Guerra, Avelino G-4-149135 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 327K | Apr 1994 – Feb 2009 |
| Vela-Lopeno Minerals Ltd. G-4-171583 | Vantage Operating II, LLC | Wildcat | Zapata | 1 | 0 | 0 | — |
| Munoz, Fernando G-4-167488 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 4.18M | Mar 1998 – Nov 2012 |
| Ramirez, Josefa G-4-168411 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 125K | May 1998 – May 2014 |
| Ramirez, M. R. G-4-177583 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 1.95M | May 2000 – Mar 2020 |
| Ramirez, M. R. G-4-130138 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 2.01M | by Jan 1993 – Mar 2012 |
| Guerra, Avelino G-4-183917 | Vantage Operating II, LLC | Lopeno (Consolidated) | Zapata | 1 | 0 | 292K | May 2001 – Jul 2018 |
| Munoz, Fernando G-4-197202 | Vantage Operating II, LLC | Lopeno ( Reklaw B) | Zapata | 1 | 0 | 1.42K | Sep 2003 – Oct 2004 |
| Ramirez, M. R. G-4-200885 | Vantage Operating II, LLC | Lopeno ( Reklaw B) | Zapata | 1 | 0 | 313K | Oct 2003 – May 2024 |
| Ramirez, Blas G-4-211154 | Vantage Operating II, LLC | Wildcat | Zapata | 1 | 0 | 0 | — |