| Weatherby, L. C. Gas Unit G-4-96324 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 11.6K | 1.15M | Jan 1993 – Nov 2019 |
| Weatherby-Weatherby Gas Unit G-4-139577 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 2.71K | 4.03M | Jan 1993 – Apr 2026 |
| L. C. Weatherby Gas Unit G-4-136273 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 1.25K | 6.58M | Jan 1993 – Apr 2026 |
| Hubberd-Frost Nat. Bank Gas Unit G-4-137108 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 889 | 3.29M | Jan 1993 – Apr 2026 |
| Weatherby, L.C. Gas Unit G-4-129882 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 715 | 3.09M | Jan 1993 – Apr 2026 |
| Hubberd, A.R. Gas Unit G-4-125910 | EOG Resources, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 712 | 2.24M | Jan 1993 – Apr 2006 |
| Hoffman 116 G-4-226100 | Magnum Producing, LP only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 681 | 1.17M | Mar 2007 – Mar 2026 |
| Greene, O. W. G-4-237120 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 518 | 518K | Apr 2008 – Apr 2026 |
| Weatherby - Wernecke Gas Unit G-4-141315 | NI Energy LLC only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 500 | 1.14M | Sep 1993 – Sep 2012 |
| Wernecke, E. D. -A G-4-171982 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 410 | 980K | Apr 1998 – Apr 2026 |
| E.D. Wernecke G.U. G-4-171990 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 395 | 6.24M | Mar 1998 – Apr 2026 |
| Weatherby - Weatherby Gas Unit G-4-138674 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 383 | 4.64M | Jan 1993 – Apr 2026 |
| Bishop Cattle Co. G-4-255455 | Rincon Petroleum Corporation only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 339 | 1.16M | Feb 2010 – Nov 2020 |
| Hoffman 116 G-4-233961 | Magnum Producing, LP only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 303 | 1.82M | Jul 2006 – Sep 2025 |
| Kilgore-Wernecke Gas Unit G-4-161390 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 300 | 4.03M | Dec 1996 – Apr 2026 |
| Hubberd - Frost Nat'l. Bank G.U. G-4-75912 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 247 | 16.8M | Jan 1993 – Jan 2018 |
| Weatherby-Weatherby Gas Unit G-4-86087 | NI Energy LLC only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 225 | 1.63M | Jan 1993 – Mar 2013 |
| Weatherby - Weatherby Gas Unit G-4-161940 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 191 | 6.35M | Jan 1997 – Apr 2026 |
| Weatherby, L.C. Gas Unit G-4-133007 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 118 | 7.2M | Jan 1993 – Jun 2016 |
| Wernecke "B" G-4-210402 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 118 | 1.9M | May 2005 – Apr 2026 |
| Greene, O.W. G-4-80376 | EOG Resources, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 45 | 575K | Jan 1993 – Jan 2003 |
| Weatherby-Weatherby GU G-4-180574 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 36 | 6.78M | Dec 2000 – Oct 2012 |
| Hubberd-Frost Nat'l Bank G/U G-4-153324 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 29 | 5.91M | Feb 1995 – Apr 2026 |
| Hubberd, A.R. Gas Unit G-4-77269 | EOG Resources, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 22 | 4.03M | Jan 1993 – Dec 2007 |
| Weatherby, L.C. Gas Unit G-4-125661 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 21 | 25.3M | Jan 1993 – Apr 2026 |
| Piedra Negra G-4-254437 | VT Vistatex Energy LLC only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 10 | 1.44M | Feb 2010 – Feb 2015 |
| Lloyd, F. B. G-4-153635 | NI Energy LLC only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 5 | 6.15M | Mar 1995 – Nov 2017 |
| Hubberd,a.r. G.U. G-4-67945 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 2 | 7.62M | Jan 1993 – May 2017 |
| Weatherby-Weatherby Gas Unit G-4-137188 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 13.9M | Jan 1993 – Jul 2021 |
| Hubberd-Frost Nat'l Bank G/U G-4-152550 | EOG Resources, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 3.35M | Dec 1994 – Aug 2008 |
| Weatherby - Wernecke Gas Unit G-4-133223 | EOG Resources, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 6.08M | Jan 1993 – Dec 2006 |
| Hubberd - Frost Nat'l Bank G.U. G-4-127594 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 8.97M | Jan 1993 – Apr 2026 |
| Lloyd, F. B. G-4-154273 | Enron Oil & Gas Company only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 1.75M | Feb 1995 – Mar 1998 |
| Hubberd-Frost Nat'l Bank G/U G-4-156291 | NI Energy LLC only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 418K | Jun 1995 – Jul 1996 |
| Weatherby - Wernecke Gas Unit G-4-127252 | NI Energy LLC only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 8.17M | Jan 1993 – Sep 2005 |
| Wernecke - Weatherby G.U. G-4-125257 | Shell Western E&P Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 24.8K | Jan 1993 – Dec 1996 |
| L.C. Weatherby Gas Unit G-4-170309 | NI Energy LLC only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 3.53M | Oct 1997 – Oct 2011 |
| Hubberd-Frost Nat'l Bank G.U. G-4-94044 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 6.17M | Jan 1993 – Apr 2026 |
| Lloyd, F. B. G-4-89818 | Shell Western E&P Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 0 | — |
| Weatherby-Wernecke Gas Unit G-4-88848 | EOG Resources, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 0 | — |
| Weatherby-Weatherby GU G-4-188051 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 4M | Feb 2002 – Apr 2026 |
| Weatherby-Weatherby GU G-4-190030 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 826K | Jul 2002 – Apr 2026 |
| Weatherby-Wernecke GU G-4-190659 | NI Energy LLC only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 0 | — |
| Wernecke, E. D. G-4-86325 | Enron Oil & Gas Company only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 129K | Jan 1993 – Dec 1996 |
| Hubberd-Frost Nat'l Bank Gas Uni G-4-84076 | EOG Resources, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 157K | Jan 1993 – Mar 1995 |
| Weatherby-Wernecke Gas Unit G-4-81828 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 2.59M | Jan 1993 – Mar 2005 |
| Weatherby-Wernecke Gas Unit G-4-77601 | EOG Resources, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 1.35M | Jan 1993 – May 1998 |
| Weatherby-Wernecke Gas Unit G-4-74899 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 8.26M | Jan 1993 – Jul 2025 |
| Lloyd, F.B. G-4-72667 | EOG Resources, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 546K | Jan 1993 – Apr 1998 |