| DCR-State 366/76/64/54 O-4-12087 | Killam Oil Co., Ltd. only | Govt. Wells, N. | Duval | 26 | 655K | 12.3K | Jan 1993 – Apr 2026 |
| State O-4-1126 | 3D Oil Company, LLC only | Govt. Wells, South | Duval | 11 | 231K | 21 | Jan 1993 – Apr 2026 |
| DCR-State 260 F O-4-12585 | Killam Oil Co., Ltd. only | Lundell | Duval | 7 | 202K | 0 | May 1996 – Apr 2026 |
| Lundell-State 140 O-4-12937 | Killam Oil Co., Ltd. only | Lundell | Duval | 5 | 163K | 0 | Apr 2000 – Apr 2026 |
| DCR-State 260 O-4-12385 | Killam Oil Co., Ltd. only | Lundell | Duval | 4 | 156K | 1 | Sep 1994 – Oct 2025 |
| West 76 Dcrc State Oil Unit O-4-7400 | Dewbre, Jerry C., Trustee only | Seventy-Six, West | Duval | 11 | 140K | 21 | Jan 1993 – Feb 2026 |
| Duval County Ranch Co. State -P- O-4-1655 | Caribbean Energy LLC II only | Lopez, North (Lopez) | Duval | 9 | 138K | 20 | Jan 1993 – Oct 2024 |
| Duval Co. Ranch Co.-State -L- O-4-557 | Caribbean Energy LLC II only | Colmena | Duval | 36 | 133K | 20 | Jan 1993 – Apr 2026 |
| Hahl, C. W. O-4-1146 | Chumley, George Estate Of only | Govt. Wells, South | Duval | 4 | 117K | 447 | Jan 1993 – Mar 2026 |
| DCR-State 76/52 O-4-12064 | Killam Oil Co., Ltd. only | Govt. Wells, N. | Duval | 5 | 108K | 6.46K | Jan 1993 – Jan 2020 |
| Duval County Ranch Co.-State -F- O-4-438 | Caribbean Energy LLC II only | Cedro Hill | Duval | 9 | 86.6K | 20 | Jan 1993 – Apr 2026 |
| Wostal State O-4-13984 | Paloma Operating, LLC only | Hoffman (Govt. Wells) | Duval | 2 | 76.7K | 0 | Aug 2014 – Apr 2026 |
| DCR-State 76/52 O-4-12063 | Killam Oil Co., Ltd. only | Govt. Wells, N. (1740 Sand) | Duval | 4 | 64.5K | 2.8K | Jan 1993 – Oct 2006 |
| Peters-State "A" O-4-12427 | Killam Oil Co., Ltd. only | Tiger (Queen City) | Duval | 1 | 58.6K | 314K | Nov 1994 – Mar 2004 |
| Exxon State G-4-163679 | Remora Operating, LLC only | Loma Novia, NE (Wilcox Mackhank) | Duval | 1 | 57K | 3.46M | Mar 1997 – May 2013 |
| DCR-State 64-11 Oil Unit O-4-12257 | Killam Oil Co., Ltd. only | Govt. Wells, N. | Duval | 1 | 55K | 923 | Sep 1993 – Apr 2026 |
| DCR-State 64-7 Oil Unit O-4-12222 | Killam Oil Co., Ltd. only | Govt. Wells, N. | Duval | 1 | 53.8K | 2.1K | Jul 1993 – May 2025 |
| Duval State Section 64 O-4-2876 | Dewbre, Jerry C., Trustee only | Seventy-Six, West | Duval | 4 | 52.9K | 21 | Jan 1993 – Nov 2018 |
| Duval State 54 O-4-4867 | Hilcorp Energy Company only | Govt. Wells, N. | Duval | 4 | 50.5K | 25 | Jan 1993 – Apr 2026 |
| Peters Estate O-4-12352 | Solo Oil & Gas Company LLC only | Rancho Solo | Duval | 4 | 50.4K | 113 | Apr 1994 – Mar 2026 |
| Moffett, L.P. Estate O-4-12151 | 3D Oil Company, LLC only | Lil Miss (Pettus) | Duval | 1 | 49.1K | 64.4K | Jan 1993 – Aug 2022 |
| DCR-State 64A O-4-12236 | Killam Oil Co., Ltd. only | Govt. Wells, N. | Duval | 3 | 47.9K | 427 | Aug 1993 – Jun 2014 |
| Tinney Estate O-4-8759 | Chapco, Inc. only | Piedras Pintas Dome | Duval | 5 | 46.4K | 6 | Apr 1993 – Jan 2026 |
| Duval County Ranch Co. State "V" O-4-9932 | Killam Oil Co., Ltd. only | Lundell (Mirando No. 1) | Duval | 3 | 43.7K | 3.58K | Jan 1993 – Apr 2026 |
| Ruiz State G-4-168924 | Killam Oil Co., Ltd. only | Rich Hurt (Wx. 4TH Hinnant) | Duval | 1 | 42.9K | 6.35M | Apr 1998 – Jun 2018 |
| Duval-State 54 O-4-4568 | Hilcorp Energy Company only | Govt. Wells, N. (1740 Sand) | Duval | 3 | 41.2K | 25 | Jan 1993 – May 2025 |
| DCR-State 64-8 Oil Unit O-4-12220 | Killam Oil Co., Ltd. only | Govt. Wells, N. | Duval | 1 | 40K | 1.17K | Jul 1993 – Apr 2026 |
| Atchison Estate G-4-237076 | Varas Energy Operating Company, only | West Tiger (Wilcox Cons.) | Duval | 1 | 37.8K | 3.33M | Nov 2007 – Aug 2023 |
| Peters Ranch Estate O-4-11479 | JJ Production only | Peters, West (Cole, UP) | Duval | 5 | 36K | 350 | Jan 1993 – Feb 2012 |
| Atchison Estate G-4-237445 | Varas Energy Operating Company, only | West Tiger (Wilcox Cons.) | Duval | 1 | 35.9K | 2.06M | Apr 2008 – Aug 2023 |
| Barnes Estate O-4-10043 | Mirando Resource, L.L.C. only | Lopez | Duval | 13 | 35.6K | 37 | Jan 1993 – Dec 1998 |
| Akin-State O-4-1257 | Rattlesnake Operating Co, LLC only | Hoffman | Duval | 11 | 31.7K | 44 | Jan 1993 – Jun 2015 |
| DCR - State Sec. 260N O-4-12650 | Killam Oil Co., Ltd. only | Hagist Ranch ( Argo) | Duval | 1 | 30K | 0 | Feb 1997 – Aug 2019 |
| Wostal State O-4-13789 | Paloma Operating, LLC only | Hoffman (2730 Loma Novia) | Duval | 2 | 27.6K | 0 | May 2013 – Apr 2026 |
| Welder State O-4-2849 | United Operating, LLC only | Seven Sisters | Duval | 2 | 26.2K | 89 | Jan 1993 – Oct 2015 |
| D.C.R.C.-State Tendido O-4-12230 | Trace Operating, LLC only | Ellie C. (Wilcox) | Duval | 1 | 25.2K | 895K | Jun 1993 – Jul 2006 |
| DCR-State 366/76/64/54 D G-4-143100 | Hilcorp Energy Company only | Ellie C. (Wilcox) | Duval | 1 | 20.2K | 2.36M | Jan 1993 – Sep 2018 |
| Haralson State O-4-11359 | S & T Salvage only | Charamousca, West (3350) | Duval | 2 | 17.9K | 115 | Jan 1993 – Nov 1998 |
| Hagist-State Gas Unit -C- G-4-10746 | Hilcorp Energy Company only | Hagist Ranch ( Wilcox Upper) | Duval | 1 | 17.6K | 3.66M | Jan 1993 – Jul 2019 |
| Exxon State G-4-274742 | Remora Operating, LLC only | Loma Novia, NE. (Wilcox) | Duval | 1 | 17.2K | 1.31M | Jun 2013 – Feb 2020 |
| DCR-State 366/76/64/54 D G-4-144985 | Hilcorp Energy Company only | Ellie C. (Wilcox) | Duval | 1 | 17.1K | 1.32M | Mar 1993 – Apr 2007 |
| Peters State "C" O-4-12834 | Killam Oil Co., Ltd. only | Tiger (Queen City) | Duval | 1 | 15.1K | 8.65K | Feb 1999 – Apr 2002 |
| Wostal State A O-4-14027 | Paloma Operating, LLC only | Hoffman (Govt. Wells) | Duval | 1 | 14.1K | 0 | Apr 2016 – Apr 2025 |
| Exxon State G-4-198019 | Remora Operating, LLC only | Loma Novia, NE. (Wilcox) | Duval | 1 | 13.6K | 835K | Nov 2003 – Dec 2009 |
| Duval County Ranch - State O-4-2872 | L.T.D. Explorations Inc. only | Seventy-Six, West | Duval | 3 | 13K | 144 | Jan 1993 – Apr 2026 |
| Wynn, H. D., State-Davis O-4-2817 | Ragars Oil & Gas Co. only | Seven Sisters | Duval | 3 | 12.6K | 72 | Jan 1993 – Sep 2024 |
| DCR-State 366/76/64/54 D G-4-142229 | Ocean Energy, Inc. only | Ellie C. (Wilcox) | Duval | 1 | 12.2K | 744K | Jan 1993 – Oct 2000 |
| DCR-State 366/76/64/54 D G-4-141868 | Ocean Energy, Inc. only | Ellie C. (Wilcox) | Duval | 1 | 10.7K | 721K | Jan 1993 – Mar 2003 |
| Mayer State GU G-4-11318 | Riddle Engineering Corp. only | Loma Novia, NE. (Wilcox) | Duval | 1 | 10.6K | 771K | Jan 1993 – Aug 2007 |
| Smith, T.D. State O-4-10158 | Killam Oil Co., Ltd. only | Seven Sisters, W. (5700) | Duval | 2 | 10.5K | 21.3K | Jan 1993 – Jul 2011 |