| Weatherby-Weatherby Gas Unit G-4-86087 | Rosita, NW (Wilcox W) | Duval | 1 | 0 | 1.63M | Jan 1993 – Jul 2026 |
| Leyendecker, G. L. G-4-96891 | Fandango (Wilcox, Upper T6) | Zapata | 1 | 0 | 4.49M | Jan 1993 – Jul 2026 |
| Muzza, G. P. G-4-103359 | Fandango (Wilcox, Upper T6) | Zapata | 1 | 0 | 22.6M | Jan 1993 – Jul 2026 |
| Hinojosa, G. G. G-4-114085 | Fandango (Wilcox, Upper T10) | Zapata | 1 | 0 | 8.91M | Jan 1993 – Jul 2026 |
| Muzza, G. P. G-4-116445 | Fandango (Wilcox, Upper T9) | Zapata | 1 | 0 | 19.4M | Jan 1993 – Jul 2026 |
| Muzza, G. P. G-4-124110 | Fandango (Wilcox, Upper T2-T3) | Zapata | 1 | 0 | 713K | Jan 1993 – Jul 2026 |
| Weatherby - Wernecke Gas Unit G-4-127252 | Rosita, NW (Wilcox W) | Duval | 1 | 0 | 8.17M | Jan 1993 – Jul 2026 |
| Weatherby - Wernecke Gas Unit G-4-141315 | Rosita, NW (Wilcox R-S-U Cons.) | Duval | 1 | 0 | 1.14M | Jan 1993 – Jul 2026 |
| Leyendecker, G. L. G-4-150897 | Fandango (Wilcox Consolidated) | Zapata | 1 | 0 | 5.76M | Jul 1994 – Jul 2026 |
| Lloyd, F. B. G-4-153635 | Rosita, NW (Wilcox R-S-U Cons.) | Duval | 1 | 0 | 6.15M | Mar 1995 – Jul 2026 |
| Hubberd-Frost Nat'l Bank G/U G-4-156291 | Rosita, NW (Wilcox R-S-U Cons.) | Duval | 1 | 0 | 418K | Jun 1995 – Jul 2026 |
| Leyendecker, G. L. G-4-163580 | Fandango (Wilcox Consolidated) | Zapata | 1 | 0 | 11.3M | Nov 1996 – Jul 2026 |
| Wernecke, E. D. G-4-165277 | Rosita (Wilcox P) | Duval | 1 | 0 | 4.14M | Oct 1997 – Jul 2026 |
| Weatherby, L.C. East Gas Unit G-4-168923 | Rosita, E. (Wilcox Cons.) | Duval | 1 | 0 | 788K | May 1998 – Jul 2026 |
| Weatherby-Wernecke P Sand GU G-4-169942 | Rosita (Wilcox P) | Duval | 1 | 0 | 956K | Jul 1998 – Jul 2026 |
| L.C. Weatherby Gas Unit G-4-170309 | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 3.53M | Aug 1997 – Jul 2026 |
| Hubberd, A. R. 1 G-4-170343 | Rosita (Wilcox P) | Duval | 1 | 0 | 56.5K | Sep 1998 – Jul 2026 |
| Kilgore-Wernecke Gas Unit G-4-173788 | Rosita, E. (Wilcox Cons.) | Duval | 1 | 0 | 10.7M | Dec 1998 – Jul 2026 |
| Leyendecker G.L. G-4-174810 | Fandango (Wilcox Consolidated) | Zapata | 1 | 0 | 8.24M | Sep 1999 – Jul 2026 |
| Trevino,a. G-4-179016 | Fandango (Wilcox Consolidated) | Zapata | 1 | 0 | 11.8M | Jul 2000 – Jul 2026 |
| Leyendecker, G. L. G-4-188524 | Fandango (Wilcox Consolidated) | Zapata | 1 | 0 | 0 | Dec 2001 – Jul 2026 |
| Weatherby-Wernecke GU G-4-190659 | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 0 | Aug 2002 – Jul 2026 |
| Frost National Bank G-4-194663 | Rosita (Wilcox P) | Duval | 1 | 0 | 0 | May 2001 – Jul 2026 |
| Leyendecker, G.L. G-4-214140 | Fandango (Wilcox Consolidated) | Zapata | 1 | 0 | 5.74M | Nov 2005 – Jul 2026 |
| Muzza, G. P. G-4-218653 | Fandango (Wilcox Consolidated) | Zapata | 1 | 0 | 360K | Apr 2006 – Jul 2026 |
| Leyendecker, G. L. G-4-224806 | Fandango (Wilcox Consolidated) | Zapata | 1 | 0 | 686K | Dec 2006 – Jul 2026 |
| Hinojosa, G. G. G-4-232197 | Fandango (Wilcox Consolidated) | Zapata | 1 | 0 | 0 | Oct 2006 – Jul 2026 |
| Trevino, A. G-4-248529 | Fandango (Wilcox Consolidated) | Zapata | 1 | 0 | 2.65M | Mar 2009 – Jul 2026 |
| Frost National Bank G-4-251886 | Wildcat | Duval | 1 | 0 | 0 | Oct 2008 – Jul 2026 |
| Green, O. W. G-4-252611 | Rosita (Wilcox A-3) | Duval | 1 | 0 | 13.3K | Jul 2009 – Jul 2026 |