| Marchbanks-Cadena 'B' G-4-215828 | Crossroads Petroleum L.L.C. only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 168K | 1.54M | Oct 2005 – Jan 2023 |
| Hernandez "A" O-4-13331 | L.T.D. Explorations Inc. only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 83.1K | 0 | Jan 2006 – Aug 2026 |
| Hernandez O-4-7491 | Price Drilling & Exploration Co. only | Orcones (5200-Oil) | Duval | 2 | 65.2K | 124K | by Jan 1993 – Dec 2005 |
| Marchbanks-Cadena Gas Unit #1 G-4-215945 | Crossroads Petroleum L.L.C. only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 41.9K | 605K | Jan 2006 – Nov 2021 |
| Hernandez A O-4-12680 | Price Drilling & Exploration Co. only | Orcones (5200-Oil) | Duval | 1 | 40.2K | 10.6K | Jun 1997 – Dec 2005 |
| Hernandez O-4-13332 | L.T.D. Explorations Inc. only | Orcones (Frio-Vksbg Cons.) | Duval | 2 | 25.2K | 88.3K | Jan 2006 – Aug 2026 |
| Marchbanks-Cadena G-4-210976 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 23.2K | 468K | May 2005 – Nov 2016 |
| Miller West O-4-14061 | Three-C Oil and Gas only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 23K | 8.48K | Apr 2017 – Apr 2023 |
| Parr, Hilda O-4-10945 | Magnum Engineering Company only | Orcones (Hockley-Woodley) | Duval | 1 | 20.4K | 21K | by Jan 1993 – Oct 2001 |
| Lopez O-4-10785 | Dugger, Glenn only | Orcones (5200-Oil) | Duval | 1 | 17K | 393K | by Jan 1993 – Dec 2005 |
| Marchbanks-Cadena Gas Unit #1 G-4-212935 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 13.8K | 969K | Jul 2005 – Sep 2017 |
| Marchbanks Cadena et Al G-4-233158 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 11.9K | 257K | Nov 2007 – Jul 2016 |
| Marchbanks-Cadena G-4-205938 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 11K | 398K | Nov 2004 – Sep 2017 |
| Parr, Hilda G-4-190026 | Voyager Gas Corporation only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 10.5K | 975K | Jul 2002 – Nov 2008 |
| Miller et Al G-4-218182 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 9.75K | 292K | May 2006 – Jan 2011 |
| Los Orcones Ranch G-4-204481 | Noble Energy Inc only | Parr Sunray (Yegua Consolidated) | Duval | 1 | 7.69K | 550K | Sep 2004 – Apr 2006 |
| Parr, Hilda G-4-208062 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 7.05K | 279K | Feb 2005 – Aug 2017 |
| Miller et Al O-4-13460 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 6.64K | 8.15K | Nov 2007 – Oct 2011 |
| Parr, Hilda G-4-258771 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 5.31K | 318K | Dec 2010 – Sep 2017 |
| Marchbanks-Cadena Gas Unit #1 O-4-14148 | Crossroads Petroleum L.L.C. only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 4.49K | 0 | Jan 2020 – Aug 2023 |
| Marchbanks-Cadena GU#1 O-4-13326 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 2 | 4.09K | 14.2K | Jan 2006 – Sep 2010 |
| Parr O-4-13871 | Bridwell Oil Co. only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 3.97K | 0 | Dec 2013 – Jul 2019 |
| Miller West O-4-13899 | Magnum Producing, LP only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 3.62K | 50.6K | Oct 2014 – Jun 2015 |
| Parr, Hilda G-4-210836 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 3.6K | 331K | Jun 2005 – Jun 2016 |
| Parr, Hilda G-4-208061 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 3.54K | 497K | Jan 2005 – Jun 2016 |
| Miller West G-4-277647 | Magnum Producing, LP only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 3.36K | 175K | Jun 2015 – Mar 2017 |
| Parr, Hilda G-4-209800 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 2.81K | 1.1M | Apr 2005 – Sep 2017 |
| Parr-Lawrence GU G-4-215514 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 2.47K | 302K | Nov 2005 – Feb 2015 |
| Lopez O-4-13342 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 2.08K | 158K | Jan 2006 – Aug 2017 |
| Marchbanks-Cadena G-4-216852 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 1.92K | 139K | Feb 2006 – Nov 2008 |
| Bazan O-4-13936 | Cimarron Engineering, LLC only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 1.78K | 0 | Dec 2014 – Feb 2019 |
| Parr, Hilda G-4-216875 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 1.53K | 902K | Feb 2006 – Sep 2017 |
| Parr, Hilda G-4-116586 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 1.1K | 310K | by Jan 1993 – Dec 2015 |
| Parr, Hilda G-4-210838 | Magnum Producing, LP only | Orcones (Delores) | Duval | 1 | 712 | 15.2K | Jun 2005 – Dec 2005 |
| Parr, Hilda G-4-209714 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 621 | 219K | Mar 2005 – Jun 2016 |
| Parr, Hilda G-4-210933 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 601 | 26.8K | May 2005 – Jun 2016 |
| Castenada O-4-13695 | White Oak Operating Company LLC only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 543 | 0 | Aug 2011 – Dec 2012 |
| Parr, G. A. G-4-31234 | Magnum Engineering Company only | Orcones (Delores) | Duval | 1 | 401 | 147K | by Jan 1993 – May 1999 |
| Parr, Hilda G-4-263944 | Armada Resources Corporation only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 244 | 53.8K | Mar 2014 – Apr 2017 |
| Wendt, Herman, Unit No. 1 G-4-10633 | Faulconer, Vernon E., Inc. only | Government Wells, N. ( Wilcox) | Duval | 1 | 69 | 50.4K | by Jan 1993 – Aug 2011 |
| Wiederker, L. G-4-42872 | Faulconer, Vernon E., Inc. only | Government Wells, N. ( Cook MTN) | Duval | 1 | 27 | 258K | by Jan 1993 – Sep 2012 |
| Parr, Hilda G-4-114773 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 1 | 25.3K | by Jan 1993 – Dec 2015 |
| Wiederkehr, L. G-4-133171 | Faulconer, Vernon E., Inc. only | Government Wells, N. ( Wilcox) | Duval | 1 | 1 | 34.6K | by Jan 1993 – Mar 2005 |
| Marchbanks Cadena Gas Unit #1 G-4-233186 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 1 | 12.8K | Aug 2007 – Aug 2016 |
| Parr, Atlee G-4-46891 | Independence Drilling Corp. only | Orcones (4900 Frio) | Duval | 1 | 0 | 0 | — |
| Vaello O-4-13955 | Bridwell Oil Co. only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 0 | 0 | — |
| Wiederkehr, L. G-4-123134 | Faulconer, Vernon E., Inc. only | Govt. Wells, N. (1450 Sd.) | Duval | 1 | 0 | 277K | by Jan 1993 – Sep 2012 |
| Wiederkehr, L. G-4-10645 | Faulconer, Vernon E., Inc. only | Government Wells, N. ( Wilcox) | Duval | 1 | 0 | 40.4K | by Jan 1993 – Jun 2004 |
| Parr, Hilda G-4-261367 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 0 | 0 | — |
| Parr, Hilda G-4-244634 | Green Exploration Company only | Orcones (Frio-Vksbg Cons.) | Duval | 1 | 0 | 0 | — |