| Weatherby-Wernecke "P" Sand G.U. G-4-136522 | Block "T" Petroleum, Inc. only | Rosita (Wilcox P) | Duval | 1 | 35.8K | 3.68M | Jan 1993 – Jul 2024 |
| Frost National Bank 65 G-4-168279 | Block "T" Petroleum, Inc. only | Rosita (Wilcox P) | Duval | 1 | 28.4K | 3.19M | Apr 1998 – Apr 2026 |
| 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 |
| Greene, O.W. G-4-247214 | Block "T" Petroleum, Inc. only | Rosita (Wilcox P) | Duval | 1 | 8.79K | 879K | May 2008 – May 2017 |
| 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 |
| Shovlin Vehle/Moore "A" G-4-225681 | Block "T" Petroleum, Inc. only | Las Hermanitas (House Sand) | Duval | 1 | 2.37K | 2.83M | Jan 2007 – Apr 2026 |
| Wernecke, Ernest D. East G-4-178013 | Block "T" Petroleum, Inc. only | Rosita, W. (Wilcox) | Duval | 1 | 1.35K | 445K | Jun 2000 – 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 |
| Shovlin Vehle/Moore "A" G-4-214907 | Block "T" Petroleum, Inc. only | Las Hermanitas (House Sand) | Duval | 1 | 1.09K | 2.53M | Nov 2005 – 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 |
| Shovlin Vehle G-4-234013 | Block "T" Petroleum, Inc. only | Las Hermanitas (House Sand) | Duval | 1 | 771 | 2.12M | Oct 2007 – 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 |
| Greene, O. W. G-4-237120 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 518 | 518K | Apr 2008 – Apr 2026 |
| Moore "B" G-4-225806 | Block "T" Petroleum, Inc. only | Las Hermanitas (House Sand) | Duval | 1 | 450 | 896K | Mar 2007 – Apr 2026 |
| 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 |
| Moore Gas Unit B G-4-217401 | Block "T" Petroleum, Inc. only | Las Hermanitas (House Sand) | Duval | 1 | 360 | 1.92M | Feb 2006 – Apr 2026 |
| Shovlin Vehle/Moore "A" G-4-245805 | Block "T" Petroleum, Inc. only | Las Hermanitas (House Sand) | Duval | 1 | 356 | 1.23M | Aug 2008 – Apr 2026 |
| 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 |
| Shovlin Vehle G-4-230931 | Block "T" Petroleum, Inc. only | Las Hermanitas (House Sand) | Duval | 1 | 235 | 711K | Jul 2007 – Apr 2026 |
| 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 |
| Shovlin Vehle G-4-241021 | Block "T" Petroleum, Inc. only | Las Hermanitas (House Sand) | Duval | 1 | 142 | 1.54M | May 2008 – 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 |
| Shovlin Vehle G-4-270623 | Block "T" Petroleum, Inc. only | Las Hermanitas (Wilcox Cons.) | Duval | 1 | 96 | 9.25K | Sep 2013 – Jul 2021 |
| Shovlin-Vehle G-4-233106 | Block "T" Petroleum, Inc. only | Las Hermanitas (House Sand) | Duval | 1 | 68 | 4.51M | Jul 2007 – Apr 2026 |
| 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 |
| 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 |
| Oliveira O-4-10917 | Block "T" Petroleum, Inc. only | San Diego SW (Yegua 6490) | Duval | 1 | 17 | 5.31K | Jan 1993 – Oct 1993 |
| Shovlin Vehle G-4-247036 | Block "T" Petroleum, Inc. only | Las Hermanitas (House Sand) | Duval | 1 | 2 | 501K | Nov 2008 – Dec 2020 |
| 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 GU G-4-190030 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 826K | Jul 2002 – Apr 2026 |
| 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 |
| Dilworth G-4-234026 | Block "T" Petroleum, Inc. only | Las Hermanitas (House Sand) | Duval | 1 | 0 | 4.87M | Nov 2007 – Apr 2026 |
| 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-Weatherby GU G-4-188051 | Block "T" Petroleum, Inc. only | Rosita, NW (Wilcox Cons.) | Duval | 1 | 0 | 4M | Feb 2002 – Apr 2026 |
| L. C. Weatherby East Gas Unit G-4-185835 | Block "T" Petroleum, Inc. only | Rosita, E. (Wilcox Cons.) | Duval | 1 | 0 | 2.29M | Oct 2001 – Apr 2026 |
| 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 |
| Weatherby, L. C. O-4-9021 | Block "T" Petroleum, Inc. only | Rosita | Duval | 1 | 0 | 0 | — |
| 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 |
| Kilgore-Wernecke Gas Unit G-4-167253 | Block "T" Petroleum, Inc. only | Rosita, E. (Wilcox Cons.) | Duval | 1 | 0 | 17.5M | Dec 1997 – Mar 2014 |
| 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 |