| Las Clavellinas Ranch 36 G-4-165084 | Three C Exploration, LLC only | Zapata, SE. (Wilcox) | Zapata | 1 | 18.9K | 4.91M | Oct 1997 – Jul 2023 |
| Salinas, G. G. G-4-215451 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 16.5K | 1.27M | Nov 2005 – Aug 2026 |
| Ramirez, Julian R., Est. -A- O-4-7194 | Finaly Resources LLC only | Edlasater, W. (Manila) | Zapata | 2 | 11K | 21 | by Jan 1993 – Nov 2000 |
| Ramirez, Julian R., Est. O-4-7076 | Finaly Resources LLC only | Edlasater, W. (Manila) | Zapata | 1 | 8.12K | 32 | by Jan 1993 – Sep 2003 |
| Salinas, G. G. G-4-229337 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 5.97K | 988K | Jul 2007 – Aug 2026 |
| Salinas, Octavio Gas Unit G-4-75829 | Fran Investments, Inc. only | Laredo (Lobo) | Zapata | 1 | 5.79K | 1.58M | by Jan 1993 – Oct 2014 |
| Salinas, G. G. G-4-224967 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 5.78K | 778K | Jan 2007 – Aug 2026 |
| Diamantina 40 G-4-170184 | Varas Energy Operating Company, only | Flores, W. (Perdido) | Zapata | 1 | 5.69K | 1.51M | Sep 1998 – Aug 2026 |
| Ramirez, Julian R., Est. -A- O-4-7715 | Finaly Resources LLC only | Edlasater, W. (Cole 950) | Zapata | 2 | 3.6K | 21 | by Jan 1993 – Aug 2003 |
| Salinas "A" G-4-160626 | Beehive Operating, LLC only | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 2.74K | 5.4M | Feb 1996 – Aug 2026 |
| Salinas G-4-216131 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 2.61K | 421K | Jan 2006 – Aug 2026 |
| Salinas-Ramirez Gas Unit G-4-156453 | Beehive Operating, LLC only | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 2.32K | 2.88M | Aug 1995 – Aug 2024 |
| Salinas G.G. G-4-236533 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 1.97K | 241K | Mar 2008 – Oct 2025 |
| Octavio Salinas Gas Unit G-4-149407 | Fran Investments, Inc. only | La Perla (Lobo Cons.) | Zapata | 1 | 1.95K | 389K | Mar 1994 – Jun 2013 |
| Salinas, Octavio Gas Unit G-4-151289 | Fran Investments, Inc. only | La Perla (Lobo Cons.) | Zapata | 1 | 1.65K | 508K | Sep 1994 – Jul 2012 |
| Salinas, G. G. G-4-233142 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 1.52K | 1.91M | Aug 2007 – Aug 2026 |
| Salinas "A" G-4-157439 | Beehive Operating, LLC only | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 1.33K | 1.79M | Dec 1995 – Aug 2024 |
| Salinas, G.G. G-4-235029 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 1.19K | 518K | Oct 2007 – Aug 2026 |
| Salinas G-4-215049 | Hilcorp Energy Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 1.19K | 1.2M | Nov 2005 – Jul 2026 |
| Salinas "A" G-4-164047 | Beehive Operating, LLC only | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 1.12K | 2.18M | Jan 1997 – Oct 2021 |
| Salinas "A" G-4-157860 | Beehive Operating, LLC only | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 829 | 1.1M | Mar 1996 – Nov 2024 |
| Blanca Aurora Salinas "A" G-4-237903 | Hilcorp Energy Company only | Cisco-Benavides (Lobo Cons.) | Zapata | 1 | 505 | 61K | Feb 2008 – Aug 2026 |
| Salinas-Ramirez Gas Unit G-4-157861 | Beehive Operating, LLC only | Bob West, North (L-1,L-2,L-3) | Zapata | 1 | 336 | 581K | Feb 1996 – Jul 2002 |
| Garcia Salinas Pedernal Ltd. G-4-205632 | Wagner Oil Company only | Falcon Lake, E. (Wilcox Cons.) | Zapata | 1 | 268 | 13.4M | Oct 2004 – Jul 2026 |
| Salinas "B" G-4-161137 | Beehive Operating, LLC only | Bob West, North (12,900) | Zapata | 1 | 205 | 1.73M | Jan 1996 – Aug 2026 |
| Octavio Salinas Gas Unit G-4-148999 | Fran Investments, Inc. only | La Perla (Lobo Cons.) | Zapata | 1 | 145 | 116K | Mar 1994 – Jun 2013 |
| Guerra, Avelina G-4-163335 | Vantage Operating II, LLC only | Lopeno (Consolidated) | Zapata | 1 | 116 | 7.3M | Apr 1997 – May 2026 |
| Las Clavellina Ranch 36 G-4-169532 | EOG Resources, Inc. only | Zapata, SE. (Wilcox) | Zapata | 1 | 104 | 17.1K | Jul 1998 – Aug 1998 |
| McCann, Catalina L. G-4-133827 | Enron Oil & Gas Company only | La Perla (Wilcox, Fourth) | Zapata | 1 | 30 | 5.77K | by Jan 1993 – Dec 1993 |
| Salinas G-4-214655 | Vision Oil and Gas LLC only | Falcon Lake, E. (Wilcox Cons.) | Zapata | 1 | 17 | 509K | Oct 2005 – Mar 2025 |
| Salinas G.U. G-4-254392 | Hilcorp Energy Company only | Exsun (Lobo Cons.) | Zapata | 1 | 9 | 105K | Dec 2009 – Aug 2026 |
| Salinas G-4-226128 | Vision Oil and Gas LLC only | Falcon Lake, E. (Wilcox Cons.) | Zapata | 1 | 8 | 401K | Mar 2007 – Apr 2024 |
| Diamantina G-4-162770 | Houston Exploration Company, The only | Flores, W. (Perdido) | Zapata | 1 | 6 | 30.5K | Apr 1997 – Sep 2005 |
| Guerra, Avelina G-4-172669 | Dominion Expl. & Prod., Inc. only | Lopeno (Consolidated) | Zapata | 1 | 5 | 367K | Oct 1998 – Apr 2000 |
| Guerra, Avelina G-4-170486 | Vantage Operating II, LLC only | Lopeno (Consolidated) | Zapata | 1 | 5 | 3.31M | Aug 1998 – May 2026 |
| De Garcia, Justina B. et Al G-4-155480 | Pressly Oil Interest, Inc. only | Escobas | Zapata | 1 | 3 | 15.8K | Apr 1996 – Jul 1998 |
| McCann, Catalina L. G-4-156673 | Arete Operating Company, LLC only | La Perla (Wilcox, Eleventh) | Zapata | 1 | 0 | 0 | — |
| Guerra, Avelina G-4-172670 | Dominion Expl. & Prod., Inc. only | Lopeno (Wilcox 9950) | Zapata | 1 | 0 | 0 | — |
| Salinas G.U. G-4-240240 | Hilcorp Energy Company only | Exsun (Lobo Cons.) | Zapata | 1 | 0 | 2.81M | May 2008 – Aug 2026 |
| Medina, B. O-4-723 | Villalon, J. Antonio, Trustee only | Escobas | Zapata | 3 | 0 | 0 | — |
| Guerra, Avelina G-4-172664 | Dominion Expl. & Prod., Inc. only | Lopeno (Wilcox I) | Zapata | 1 | 0 | 0 | — |
| Medina/Lozano G-4-170445 | Key Energy Services, LLC only | Exsun (Queen City II-A) | Zapata | 1 | 0 | 0 | — |
| Salinas G-4-167353 | Conocophillips Company only | Roleta (Wilcox Consolidated) | Zapata | 1 | 0 | 208K | Jul 1998 – Nov 2005 |
| Guerra, Avelina G-4-165886 | Dominion Expl. & Prod., Inc. only | Lopeno (Wilcox 10,200) | Zapata | 1 | 0 | 0 | — |
| Guerra, Avelina G-4-165664 | XTO Energy Inc. only | Lopeno (Consolidated) | Zapata | 1 | 0 | 2.76M | Oct 1997 – Dec 2000 |
| Salinas G.U. G-4-239664 | Hilcorp Energy Company only | Exsun (Lobo Cons.) | Zapata | 1 | 0 | 2.93M | May 2008 – Aug 2026 |
| Guerra, Avelina G-4-163336 | Dominion Expl. & Prod., Inc. only | Lopeno (Wilcox I) | Zapata | 1 | 0 | 71.5K | Mar 1997 – Aug 1997 |
| Salinas, Octavio Gas Unit G-4-148309 | Sonat Exploration Company -Tyler only | Wildcat | Zapata | 1 | 0 | 0 | — |
| Ramirez, Julian G-4-121312 | Finaly Resources LLC only | Edlasater, W. (Manila) | Zapata | 1 | 0 | 209 | by Jan 1993 – Nov 2001 |
| Salinas "A" G-4-161625 | Beehive Operating, LLC only | Wildcat | Zapata | 1 | 0 | 0 | — |