| Benavides Trust #1342-505-35635 | Merit Energy Company only | ZapataHundido (Lobo) | Temporarily abandonedGas | 11,350 | Jan 23, 2018 | 2 | Feb 2016 |
| Benavides Trust #1442-505-35798 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 11,250 | Jan 23, 2018 | 2 | Apr 2026 |
| Benavides Belia R. B #15 U42-505-33351 | Varas Energy Operating Company only | ZapataHundido (9300) | ActiveGas | 10,800 | Sep 19, 2014 | 2 | Oct 2013 |
| Martinez S. #142-505-30888 | Varas Energy Operating Company only | ZapataLos Mogotes (Wilcox Cons.) | ActiveGas | 11,600 | Jun 26, 2014 | 2 | Apr 2026 |
| Benavides Belia R. B #142-505-31333 | Varas Energy Operating Company only | ZapataLos Mogotes (Wilcox Cons.) | ActiveGas | 10,700 | Jun 26, 2014 | 4 | Apr 2021 |
| Haynes L. #11642-505-34940 | Merit Energy Company only | ZapataLos Mogotes (Wilcox Cons.) | ActiveGas | 11,400 | Feb 26, 2008 | 2 | Apr 2026 |
| Sanchez- McMurry #2642-505-36002 | Merit Energy Company only | ZapataHundido (Lobo) | Temporarily abandonedGas | 10,900 | Nov 7, 2007 | 1 | May 2016 |
| Rathmell J. G. #3342-505-35872 | Merit Energy Company only | ZapataHundido (Lobo) | Temporarily abandonedGas | 10,700 | Jun 29, 2007 | 1 | Apr 2014 |
| Gutierrez #342-505-35911 | Silver Fox Oil & Gas LLC only | ZapataHundido (Lobo) | Temporarily abandonedGas | 10,469 | Jun 28, 2007 | 1 | May 2023 |
| Decarreon G. G. #1342-505-35584 | Merit Energy Company only | ZapataHundido (9300) | Temporarily abandonedGas | 10,250 | Jun 1, 2007 | 2 | Nov 2008 |
| Rathmell J. G. #3042-505-35728 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 10,830 | Apr 6, 2007 | 3 | Apr 2026 |
| Decarreon G. G. #1642-505-35808 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 10,800 | Mar 19, 2007 | 1 | Apr 2018 |
| Sanchez-McMurrey #2942-505-35797 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 10,800 | Jan 29, 2007 | 1 | Apr 2026 |
| Talbert MM Estate #342-505-35799 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 10,555 | Jan 29, 2007 | 1 | Apr 2026 |
| Benavides Trust #1242-505-35744 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 11,174 | Nov 30, 2006 | 1 | Apr 2026 |
| Gutierrez B. G. #1242-505-35585 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 10,880 | Aug 3, 2006 | 1 | Apr 2026 |
| Benavides #242-505-35598 | BNR Operating LLC only | ZapataHundido (Lobo) | ActiveGas | 10,820 | May 31, 2006 | 2 | Jun 2022 |
| Talbert a #142-505-35561 | Protech Oil & Gas Services LLC only | ZapataHundido (Lobo) | PluggedGas | 12,000 | Apr 18, 2006 | 1 | Nov 2017 |
| Gutierrez #142-505-35404 | Silver Fox Oil & Gas LLC only | ZapataHundido (Lobo) | Temporarily abandonedGas | 10,422 | Oct 27, 2005 | 2 | May 2023 |
| Benavides Trust #642-505-34773 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 11,346 | Jul 14, 2005 | 2 | Apr 2026 |
| Decarreon G. G. #1142-505-33958 | Merit Energy Company only | ZapataHundido (9300) | ActiveGas | 11,200 | Aug 27, 2004 | 2 | Jul 2025 |
| Benavides Trust #942-505-34933 | Merit Energy Company only | ZapataHundido (Lobo) | Temporarily abandonedGas | 11,248 | Feb 18, 2004 | 1 | Feb 2016 |
| Benavides Trust #842-505-34901 | Merit Energy Company only | ZapataHundido (9300) | ActiveGas | 11,200 | Jan 6, 2004 | 2 | Feb 2016 |
| Rathmell J. G. #3242-505-34831 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 9,950 | Oct 20, 2003 | 2 | Apr 2026 |
| Sanchez - McMurrey #2342-505-34297 | Merit Energy Company only | ZapataM & F (Wilcox 6500) | ActiveGas | 10,900 | Aug 1, 2003 | 3 | Mar 2013 |
| Rathmell J. G. #2642-505-34298 | Merit Energy Company only | ZapataHundido (9300) | ActiveGas | 11,200 | Jun 30, 2003 | 3 | Nov 2008 |
| Benavides Trust #542-505-34741 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 11,384 | May 15, 2003 | 1 | Apr 2025 |
| Benavides Trust #442-505-34739 | Merit Energy Company only | ZapataHundido (Lobo) | Temporarily abandonedGas | 11,300 | May 12, 2003 | 1 | Feb 2016 |
| Martinez S B #242-505-30960 | Varas Energy Operating Company only | ZapataHundido (Lobo) | PluggedGas | 11,600 | Jan 24, 2003 | 3 | Jul 2025 |
| Benavides Belia R. C #342-505-33372 | EOG Resources Inc. only | ZapataHundido (9300) | PluggedGas | 11,650 | Jan 6, 2003 | 2 | Oct 2010 |
| Rathmell J.G. #1242-505-33152 | Plains Exploration & Prod. Co. only | ZapataHundido (Lobo) | PluggedGas | 11,250 | Nov 1, 2002 | 3 | Jan 1996 |
| Rathmell J. G. #1942-505-33680 | Pogo Producing Company only | ZapataM & F (Wilcox 6500) | PluggedGas | 11,400 | Oct 24, 2002 | 3 | May 2003 |
| Benavides Trust #242-505-34606 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 11,150 | Sep 11, 2002 | 1 | Apr 2026 |
| Benavides Trust #142-505-34605 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 10,480 | Sep 5, 2002 | 1 | Apr 2026 |
| Martinez S. a #342-505-30998 | Varas Energy Operating Company only | ZapataHundido (Lobo) | ActiveGas | 11,003 | Mar 21, 2002 | 3 | Apr 2026 |
| Rathmell J.G. #242-505-30941 | Merit Energy Company only | ZapataHundido (9300) | ActiveGas | 10,878 | Dec 19, 2001 | 3 | Apr 2026 |
| Rathmell J.G. #742-505-31645 | Merit Energy Company only | ZapataHundido (9300) | Temporarily abandonedGas | 10,800 | Dec 19, 2001 | 3 | May 2023 |
| Rathmell J. G. #342-505-30964 | Pogo Producing Company LLC only | ZapataHundido (9300) | PluggedGas | 11,300 | Dec 18, 2001 | 3 | Jan 2008 |
| Rathmell J. G. #442-505-31166 | Merit Energy Company only | ZapataHundido (9300) | ActiveGas | 10,528 | Dec 18, 2001 | 3 | Apr 2026 |
| Decarreon G. G. #1542-505-34470 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 10,800 | Dec 14, 2001 | 1 | Apr 2026 |
| Sanchez-McMurrey #2742-505-34429 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 11,603 | Oct 3, 2001 | 1 | Apr 2026 |
| Sanchez-McMurrey #2842-505-34430 | Merit Energy Company only | ZapataHundido (Lobo) | Temporarily abandonedGas | 10,505 | Oct 3, 2001 | 2 | Aug 2021 |
| Talbert MM Estate #242-505-34387 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 11,020 | Oct 2, 2001 | 2 | Apr 2026 |
| Rathmell J. G. #1542-505-33424 | Merit Energy Company only | ZapataHundido (9300) | ActiveGas | 10,648 | Mar 28, 2001 | 2 | Oct 2014 |
| Gutierrez B. G. #1342-505-34315 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 10,900 | Mar 16, 2001 | 1 | Apr 2026 |
| Sanchez-McMurrey #2442-505-34285 | OXY USA Inc. only | ZapataHundido (Lobo) | PluggedGas | 11,500 | Mar 6, 2001 | 1 | Aug 2013 |
| Sanchez- McMurrey #2142-505-34182 | Merit Energy Company only | ZapataHundido (Lobo) | Temporarily abandonedGas | 11,000 | Mar 1, 2001 | 3 | Nov 2008 |
| Rathmell J. G. #2142-505-33968 | Merit Energy Company only | ZapataHundido (9300) | ActiveGas | 11,300 | Feb 23, 2001 | 2 | Nov 2014 |
| Sanchez-McMurrey #2042-505-33999 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 11,004 | Feb 6, 2001 | 2 | Apr 2026 |
| Rathmell J. G. #2242-505-34000 | Merit Energy Company only | ZapataHundido (Lobo) | ActiveGas | 10,650 | Jan 29, 2001 | 2 | Apr 2026 |