| Hal Lopeno #342-505-36611 | Varas Energy Operating Company | ZapataLopeno ( Queen City Oil) | Shut inOil | 3,000 | Nov 21, 2017 | 1 | Jun 2026 |
| Hal Lopeno #242-505-36610 | Varas Energy Operating Company | ZapataLopeno ( Queen City Oil) | Shut inOil | 2,912 | Nov 16, 2017 | 1 | Jun 2026 |
| Hal Lopeno #142-505-36609 | Varas Energy Operating Company | ZapataLopeno ( Queen City Oil) | Shut inOil | 2,957 | Sep 21, 2017 | 1 | Jun 2026 |
| Benavides Belia R. B #15 U42-505-33351 | Varas Energy Operating Company | ZapataHundido (9300) | ActiveGas | 10,800 | Sep 19, 2014 | 2 | Oct 2013 |
| Elizondo #442-505-36606 | Varas Energy Operating Company | ZapataRoleta (Wilcox Consolidated) | Temporarily abandonedGas | 10,625 | Sep 3, 2014 | 2 | Dec 2023 |
| Martinez S. #142-505-30888 | Varas Energy Operating Company | ZapataLos Mogotes (Wilcox Cons.) | ActiveGas | 11,600 | Jun 26, 2014 | 2 | Aug 2026 |
| Benavides Belia R. B #142-505-31333 | Varas Energy Operating Company | ZapataLos Mogotes (Wilcox Cons.) | ActiveGas | 10,700 | Jun 26, 2014 | 4 | Aug 2026 |
| Gomez #242-505-34013 | Varas Energy Operating Company | ZapataTaguache Creek (Wilcox 10800) | Temporarily abandonedGas | 11,000 | May 25, 2011 | 3 | Oct 2023 |
| Falcon Lake #142-505-36539 | Varas Energy Operating Company | ZapataUrebeno South (Wilcox 7000) | ActiveGas | 9,439 | Nov 23, 2010 | 1 | Aug 2026 |
| Ranchito Tank GU #342-505-36436 | Varas Energy Operating Company | ZapataExsun (Lobo Cons.) | ActiveGas | 11,990 | May 8, 2009 | 2 | Aug 2026 |
| Gutierrez J. M. B #542-505-36406 | Varas Energy Operating Company | ZapataRoleta (Wilcox Consolidated) | Temporarily abandonedGas | 11,000 | Mar 13, 2009 | 1 | Sep 2023 |
| Uribe A. Heirs #542-505-36310 | Varas Energy Operating Company | ZapataPok - a - Dot (8600) | ActiveGas | 9,100 | Oct 1, 2008 | 1 | Aug 2026 |
| Laurel F.D. a #1342-505-36027 | Varas Energy Operating Company | ZapataMunoz (Lobo) | ActiveGas | 13,950 | Nov 29, 2007 | 1 | Aug 2026 |
| Laurel F. D. #1242-505-36006 | Varas Energy Operating Company | ZapataMunoz (Lobo) | ActiveGas | 13,930 | Oct 30, 2007 | 1 | Aug 2026 |
| Flores-Calishe Ranch #442-505-35760 | Varas Energy Operating Company | ZapataRamirez (Wilcox 8100) | Temporarily abandonedGas | 8,450 | Dec 13, 2006 | 1 | Jul 2023 |
| I. C. Uribe GU #442-505-33447 | Varas Energy Operating Company | ZapataJ J & J (Wilcox 8800) | Temporarily abandonedGas | 12,390 | Sep 21, 2006 | 4 | Sep 2023 |
| Martinez Mercuiro #442-505-35692 | Varas Energy Operating Company | ZapataLas Ovejas (Lobo) | ActiveGas | 11,428 | Sep 18, 2006 | 1 | Jul 2026 |
| Palmyra #2142-505-35449 | Varas Energy Operating Company | ZapataLopeno (Consolidated) | ActiveGas | 10,315 | Dec 22, 2005 | 1 | Aug 2026 |
| Palmyra #1942-505-35435 | Varas Energy Operating Company | ZapataLopeno (Consolidated) | ActiveGas | 10,230 | Dec 2, 2005 | 1 | Aug 2026 |
| Palmyra #2042-505-35434 | Varas Energy Operating Company | ZapataLopeno (Consolidated) | ActiveGas | 10,247 | Nov 30, 2005 | 1 | Aug 2026 |
| Palmyra #1842-505-35409 | Varas Energy Operating Company | ZapataLopeno (Consolidated) | Temporarily abandonedGas | 10,400 | Nov 2, 2005 | 1 | Mar 2020 |
| Palmyra #1742-505-35385 | Varas Energy Operating Company | ZapataLopeno (Consolidated) | ActiveGas | 10,125 | Oct 7, 2005 | 1 | Aug 2026 |
| Palmyra #1242-505-35347 | Varas Energy Operating Company | ZapataLopeno (Consolidated) | ActiveGas | 12,015 | Aug 16, 2005 | 1 | Aug 2026 |
| Palmyra #1642-505-35348 | Varas Energy Operating Company | ZapataLopeno (Consolidated) | ActiveGas | 10,050 | Aug 16, 2005 | 1 | Aug 2026 |
| Palmyra #1142-505-35203 | Varas Energy Operating Company | ZapataLopeno (Consolidated) | ActiveGas | 12,500 | Jun 7, 2005 | 3 | Aug 2026 |
| Palmyra #1442-505-35205 | Varas Energy Operating Company | ZapataLopeno (Consolidated) | ActiveGas | 12,500 | Mar 1, 2005 | 1 | Aug 2026 |
| Bigler-Flores GU #242-505-34924 | Varas Energy Operating Company | ZapataExsun (Lobo Cons.) | ActiveGas | 11,000 | Feb 2, 2004 | 2 | Aug 2026 |
| Lopez #2A42-505-34871 | Varas Energy Operating Company | ZapataTigre Grande (12000) | Temporarily abandonedGas | 12,857 | Nov 18, 2003 | 2 | Jul 2026 |
| Bigler-Flores GU #142-505-34851 | Varas Energy Operating Company | ZapataExsun (Lobo Cons.) | ActiveGas | 10,800 | Oct 16, 2003 | 1 | Jun 2026 |
| Laurel Sergio #342-505-31820 | Varas Energy Operating Company | ZapataLas Ovejas (Wilcox 8400) | Temporarily abandonedGas | 9,451 | Mar 14, 2003 | 4 | Feb 2026 |
| Martinez S B #242-505-30960 | Varas Energy Operating Company | ZapataHundido (Lobo) | PluggedGas | 11,600 | Jan 24, 2003 | 3 | Jul 2025 |
| Martinez S. a #342-505-30998 | Varas Energy Operating Company | ZapataHundido (Lobo) | ActiveGas | 11,003 | Mar 21, 2002 | 3 | Aug 2026 |
| Uribe Family Trust #242-505-34442 | Varas Energy Operating Company | ZapataPok - a - Dot (8600) | ActiveGas | 9,095 | Oct 22, 2001 | 1 | Aug 2026 |
| Gutierrez Heirs 37 #742-505-34329 | Varas Energy Operating Company | ZapataUrebeno South (Wilcox 7000) | ActiveGas | 7,400 | Apr 17, 2001 | 1 | Aug 2026 |
| Mann E. E. Trust Etal #342-505-34324 | Varas Energy Operating Company | ZapataLos Mogotes (Lobo 1) | Temporarily abandonedGas | 11,350 | Mar 27, 2001 | 1 | Oct 2022 |
| FGG Ranches #242-505-34246 | Varas Energy Operating Company | ZapataLos Mogotes (Lobo 1) | ActiveGas | 11,307 | Nov 16, 2000 | 1 | Aug 2026 |
| Laurel F. D. #142-505-32381 | Varas Energy Operating Company | ZapataMunoz (Lobo) | ActiveGas | 14,000 | Oct 13, 2000 | 3 | Aug 2026 |
| Palmyra Minerals Ltd #842-505-34205 | Varas Energy Operating Company | ZapataLopeno (Consolidated) | ActiveGas | 12,500 | Aug 25, 2000 | 5 | Aug 2026 |
| Villareal-Zapata GU #342-505-32982 | Varas Energy Operating Company | ZapataUrebeno South (Wilcox 5900) | Temporarily abandonedGas | 9,200 | Aug 18, 2000 | 5 | Aug 2026 |
| Martinez M. #1542-505-34137 | Varas Energy Operating Company | ZapataPok - a - Dot (8600) | ActiveGas | 8,567 | Jun 6, 2000 | 1 | Aug 2026 |
| Martinez M. #1442-505-34128 | Varas Energy Operating Company | ZapataPok - a - Dot (8600) | ActiveGas | 9,800 | Apr 27, 2000 | 1 | Aug 2026 |
| Benavides Belia R. B #1042-505-33146 | Varas Energy Operating Company | ZapataHundido (Lobo) | ActiveGas | 10,550 | Mar 17, 2000 | 2 | May 2026 |
| Benavides Belia R. B #542-505-31607 | Varas Energy Operating Company | ZapataHundido (9300) | ActiveGas | 10,881 | Mar 16, 2000 | 3 | Aug 2026 |
| Benavides Belia R. C #142-505-33172 | Varas Energy Operating Company | ZapataHundido (Lobo) | ActiveGas | 10,975 | Mar 7, 2000 | 2 | Aug 2026 |
| Benavides Belia R. B #842-505-32954 | Varas Energy Operating Company | ZapataHundido (9300) | ActiveGas | 10,575 | Feb 15, 2000 | 2 | Aug 2026 |
| Martinez M. #1342-505-34056 | Varas Energy Operating Company | ZapataPok - a - Dot (8600) | ActiveGas | 9,300 | Jan 27, 2000 | 1 | Aug 2026 |
| Gomez #142-505-33987 | Varas Energy Operating Company | ZapataTaguache Creek (Wilcox 10800) | Temporarily abandonedGas | 10,991 | Aug 21, 1999 | 2 | Oct 2023 |
| Lopez #1 A42-505-31235 | Varas Energy Operating Company | ZapataAlejandrenas (Wilcox 9100) | Temporarily abandonedGas | 9,338 | May 20, 1999 | 2 | Aug 2023 |
| FGG Ranches #142-505-33946 | Varas Energy Operating Company | ZapataLos Mogotes (Lobo 1) | ActiveGas | 11,305 | May 19, 1999 | 1 | Aug 2026 |
| Villarreal-Zapata #442-505-33907 | Varas Energy Operating Company | ZapataUrebeno South (Wilcox 7000) | ActiveGas | 7,193 | Feb 25, 1999 | 1 | Aug 2026 |