| Lopez -A- O-4-2035 | Trium, Ltd. only | Orlee | Duval | 18 | 268K | 120 | by 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 | by Jan 1993 – Oct 2024 |
| Duval Co. Ranch Co. -C- O-4-1654 | Caribbean Energy LLC II only | Lopez, North (Lopez) | Duval | 3 | 130K | 20 | by Jan 1993 – Aug 2026 |
| Santerra O-4-13690 | 1947 Natural Resources, LLC only | Lopez, North (Lopez) | Duval | 10 | 86.5K | 0 | Oct 2011 – Aug 2026 |
| Frost Bank G-4-212586 | Finaly Resources LLC only | Lopez, SE. (Consolidated) | Duval | 1 | 45K | 2.21M | Aug 2005 – Aug 2026 |
| Frost Bank G-4-211514 | Finaly Resources LLC only | Lopez, SE. (Consolidated) | Duval | 1 | 36.9K | 2.74M | Jul 2005 – Aug 2026 |
| Barnes Estate O-4-10043 | Mirando Resource, L.L.C. only | Lopez | Duval | 13 | 35.6K | 37 | by Jan 1993 – Dec 1998 |
| Gruy, Dagmar G-4-245001 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 31.5K | 1.27M | Jan 2009 – Aug 2026 |
| Gruy, Dagmar G-4-253002 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 28.2K | 2.16M | Oct 2009 – Aug 2026 |
| Vanco O-4-13743 | 1947 Natural Resources, LLC only | Lopez, North (Lopez) | Duval | 9 | 27.6K | 0 | Sep 2012 – Aug 2026 |
| Gruy, Dagmar G-4-229012 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 27.5K | 3.07M | Jun 2007 – Aug 2026 |
| Gruy, Dagmar G-4-224738 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 24.5K | 1.67M | Dec 2006 – Aug 2026 |
| Gruy G-4-223085 | Dynamic Production, Inc. only | Lopez, SE. (Consolidated) | Duval | 1 | 23.7K | 3.04M | Nov 2006 – Aug 2026 |
| Gruy, Dagmar G-4-224748 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 23.2K | 1.74M | Jan 2007 – Aug 2026 |
| Gruy, Dagmar G-4-222674 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 22.5K | 2.32M | Oct 2006 – Jul 2026 |
| Lopez O-4-13800 | 1947 Natural Resources, LLC only | Lopez, North (Lopez) | Duval | 2 | 22.5K | 0 | Jun 2013 – Aug 2026 |
| Gruy, Dagmar G-4-227774 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 22.3K | 1.12M | May 2007 – Aug 2026 |
| Gruy, Dagmar G-4-230962 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 21.4K | 2.28M | Sep 2007 – Aug 2026 |
| Gruy G-4-223011 | Dynamic Production, Inc. only | Lopez, SE. (Consolidated) | Duval | 1 | 21.2K | 1.51M | Nov 2006 – Dec 2018 |
| Peal Ranch G-4-203152 | Orx Resources, L.L.C. only | Lopez, SE. (Consolidated) | Duval | 1 | 19.8K | 1.93M | Aug 2004 – Aug 2016 |
| Dcrc Section 194 O-4-13767 | Caribbean Energy LLC II only | Lopez, North (Lopez) | Duval | 3 | 19.7K | 0 | Mar 2013 – Aug 2026 |
| F. Gonzalez GU G-4-170246 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 19.2K | 2.65M | Aug 1998 – Aug 2026 |
| Peters Ranch G-4-207097 | Orx Resources, L.L.C. only | Lopez, SE. (Consolidated) | Duval | 1 | 18.2K | 2.39M | Dec 2004 – Mar 2021 |
| Gruy, Dagmar G-4-256725 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 18.2K | 791K | Apr 2010 – Aug 2026 |
| Gruy, Dagmar G-4-223209 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 18K | 1.42M | Oct 2006 – Jul 2026 |
| Gruy, Dagmar G-4-223959 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 17.6K | 1.24M | Dec 2006 – Aug 2026 |
| Gruy, Dagmar G-4-224747 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 17.4K | 1.53M | Jan 2007 – Aug 2026 |
| Lopez O-4-10785 | Dugger, Glenn only | Orcones (5200-Oil) | Duval | 1 | 17K | 393K | by Jan 1993 – Dec 2005 |
| Gruy, Dagmar G-4-242975 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 16.1K | 710K | Sep 2008 – Aug 2026 |
| Peal Ranch G-4-201324 | Orx Resources, L.L.C. only | Lopez, SE. (Consolidated) | Duval | 1 | 15.9K | 2.05M | Apr 2004 – Aug 2026 |
| Gruy, Dagmar G-4-257164 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 14.7K | 655K | Jun 2010 – Aug 2026 |
| Gruy, Dagmar G-4-223750 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 14.7K | 1.36M | Nov 2006 – Aug 2026 |
| Gruy, Dagmar G-4-228945 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 14.4K | 1.06M | Jul 2007 – Aug 2026 |
| Gruy, Dagmar G-4-225178 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 14.1K | 923K | Feb 2007 – Aug 2026 |
| Peters Ranch G-4-204320 | Orx Resources, L.L.C. only | Lopez, SE. (Consolidated) | Duval | 1 | 14K | 1.42M | Oct 2004 – May 2016 |
| Peal, J B G-4-210368 | Orx Resources, L.L.C. only | Lopez, SE. (Consolidated) | Duval | 1 | 13.5K | 1.7M | Jun 2005 – Aug 2026 |
| Peal Ranch G-4-209771 | Orx Resources, L.L.C. only | Lopez, SE. (Consolidated) | Duval | 1 | 13.2K | 1.62M | Feb 2005 – Aug 2023 |
| Gruy, Dagmar G-4-227977 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 12.5K | 972K | Feb 2007 – Jul 2026 |
| Gruy, Dagmar G-4-232682 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 11.8K | 1.45M | Nov 2007 – Aug 2026 |
| Peal Ranch G-4-223235 | Orx Resources, L.L.C. only | Lopez, SE. (Consolidated) | Duval | 1 | 10.7K | 1.48M | Oct 2006 – Aug 2026 |
| Peal Ranch G-4-202605 | Orx Resources, L.L.C. only | Lopez, SE. (Consolidated) | Duval | 1 | 10.5K | 1.77M | Jun 2004 – Jul 2025 |
| Gruy, Dagmar G-4-227114 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 10.3K | 682K | May 2007 – Aug 2026 |
| Duval County Ranch Co. G-4-101202 | Jenco Petroleum Corporation only | Lopez, NW (Wilcox) | Duval | 1 | 10.2K | 757K | by Jan 1993 – Sep 2014 |
| Peal Ranch G-4-229034 | Orx Resources, L.L.C. only | Lopez, SE. (Consolidated) | Duval | 1 | 9.99K | 1.59M | Jul 2007 – Aug 2026 |
| Gruy, Dagmar G-4-256531 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 9.94K | 753K | May 2010 – Aug 2026 |
| Peal Ranch G-4-201429 | Orx Resources, L.L.C. only | Lopez, SE. (Consolidated) | Duval | 1 | 9.7K | 1.47M | Feb 2004 – Aug 2026 |
| Frost Bank/Peal Ranch Unit G-4-230687 | Orx Resources, L.L.C. only | Lopez, SE. (Consolidated) | Duval | 1 | 9.31K | 1.15M | Sep 2007 – Dec 2025 |
| Peters Estate O-4-10595 | Sanchez Oil & Gas Corporation only | Lopez | Duval | 1 | 8.61K | 37 | by Jan 1993 – Feb 1999 |
| Gruy, Dagmar G-4-227456 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 8.08K | 688K | Apr 2007 – Aug 2026 |
| Gruy, Dagmar G-4-233196 | Varas Energy Operating Company, only | Lopez, SE. (Consolidated) | Duval | 1 | 7.93K | 248K | Dec 2007 – Jul 2026 |