| Moffatt-Alonzo Gas Unit #142-505-34067 | Hilcorp Energy Company | Zapata, TXHaynes (Middle Wilcox Cons.) | ActiveGas | 13,000 | Jan 14, 2000 | — | — |
| Ramos Baltazar #442-505-34066 | Vantage Operating II LLC | Zapata, TXLopeno (Consolidated) | ActiveGas | 11,830 | Jan 7, 2000 | — | — |
| Siete Vela #142-505-34065 | — | Zapata, TX | Plugged | 12,500 | Jan 5, 2000 | — | — |
| Bruni Ranch #6442-505-34064 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 11,515 | Dec 29, 1999 | — | — |
| Jennings Ranch D #342-505-34057 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | ActiveGas | 12,700 | Dec 23, 1999 | — | — |
| Bruni Ranch #5742-505-34058 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 11,400 | Dec 23, 1999 | — | — |
| Bruni Ranch #5542-505-34059 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 11,576 | Dec 23, 1999 | — | — |
| Jennings Ranch C #1342-505-34060 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | ActiveGas | 12,900 | Dec 23, 1999 | — | — |
| Garza A. #1142-505-34061 | Hilcorp Energy Company | Zapata, TXCharco (9200) | ActiveGas | 10,150 | Dec 23, 1999 | — | — |
| Daisy #442-505-34062 | Hilcorp Energy Company | Zapata, TXHaynes (Middle Wilcox Cons.) | ActiveGas | 14,600 | Dec 23, 1999 | — | — |
| Dye James #642-505-31187 | Hilcorp Energy Company | Zapata, TXDye W. (Navarro) | ActiveGas | 9,508 | Dec 22, 1999 | — | — |
| Barrocito #242-505-34047 | — | Zapata, TXLas Ovejas (Wilcox 9550) | Plugged | 11,200 | Dec 22, 1999 | — | — |
| Bruni Ranch #5642-505-34053 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 11,600 | Dec 21, 1999 | — | — |
| Bruni Ranch #5442-505-34054 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 11,500 | Dec 21, 1999 | — | — |
| Martin J. C. et al #1442-505-34052 | Hilcorp Energy Company | Zapata, TXCisco-Benavides (Lobo Cons.) | ActiveGas | 9,350 | Dec 20, 1999 | — | — |
| White #1B42-505-34055 | Silver Fox Oil & Gas LLC | Zapata, TXLa Perla (Lobo Cons.) | Temporarily abandonedGas | 10,511 | Dec 20, 1999 | — | — |
| Muzza G. P. #842-505-31946 | Block T Petroleum Inc. | Zapata, TXFandango (Wilcox Consolidated) | PluggedGas | 18,000 | Dec 15, 1999 | — | — |
| Jennings #7042-505-34049 | Hilcorp Energy Company | Zapata, TXLoma Vieja (Wilcox) | Temporarily abandonedGas | 12,700 | Dec 14, 1999 | — | — |
| Slator Ranch C #242-505-34048 | Mountain V Texas LLC | Zapata, TXZwebb (10350) | ActiveGas | 10,500 | Dec 10, 1999 | — | — |
| La Perla #20842-505-34046 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 9,550 | Dec 8, 1999 | — | — |
| Vela L. G. #242-505-34045 | Eex E&P Company L.P. | Zapata, TXHaynes (Middle Wilcox Cons.) | PluggedGas | 12,000 | Dec 3, 1999 | — | — |
| Slator Ranch B #242-505-34044 | Mountain V Texas LLC | Zapata, TXZwebb (10350) | ActiveGas | 10,400 | Dec 2, 1999 | — | — |
| Jennings Ranch C #1242-505-34042 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | ActiveGas | 12,900 | Nov 30, 1999 | — | — |
| Serafin #242-505-34043 | Merit Energy Company | Zapata, TXSan Ygnacio E. (Wilcox 8600) | ActiveGas | 8,880 | Nov 30, 1999 | — | — |
| Vaquillas Ranch Ltd #142-505-31363 | Wagner Oil Company | Zapata, TXPok - a - Dot (8600) | PluggedGas | 13,500 | Nov 24, 1999 | — | — |
| Haynes L. #4242-505-34041 | Merit Energy Company | Zapata, TXLos Mogotes (Wilcox Cons.) | ActiveGas | 9,300 | Nov 23, 1999 | — | — |
| Guerra L #242-505-31685 | Cantera Operating LLC | Zapata, TXRoleta (6800) | PluggedGas | 8,200 | Nov 18, 1999 | — | — |
| Alfonso #1242-505-34039 | Hilcorp Energy Company | Zapata, TXCharco (9200) | ActiveGas | 10,320 | Nov 17, 1999 | — | — |
| Asche #4442-505-34040 | Hilcorp Energy Company | Zapata, TXCharco (9200) | ActiveGas | 10,200 | Nov 17, 1999 | — | — |
| Mecom J. W. #10742-505-34029 | Paleo Oil Company LLC | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 9,992 | Nov 12, 1999 | — | — |
| Leal F. #142-505-34030 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 9,900 | Nov 12, 1999 | — | — |
| BMT-FNB #142-505-34031 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 9,900 | Nov 12, 1999 | — | — |
| Bruni Ranch #5342-505-34032 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | Temporarily abandonedGas | 11,400 | Nov 12, 1999 | — | — |
| Bruni Ranch #5242-505-34033 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 11,600 | Nov 12, 1999 | — | — |
| La Perla B1 #1542-505-34034 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 9,292 | Nov 12, 1999 | — | — |
| Canales #2042-505-34035 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 11,000 | Nov 12, 1999 | — | — |
| Martin J. C. #1642-505-34036 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 9,774 | Nov 12, 1999 | — | — |
| S.G. Marshall #2742-505-34037 | — | Zapata, TXPok - a - Dot (8600) | Plugged | 10,000 | Nov 12, 1999 | — | — |
| Decarreon G. G. #1042-505-33739 | Merit Energy Company | Zapata, TXHundido (9300) | ActiveGas | 10,800 | Nov 9, 1999 | — | — |
| Jennings Ranch C #1142-505-34028 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | ActiveGas | 12,900 | Nov 5, 1999 | — | — |
| Haynes L. #2742-505-33245 | Merit Energy Company | Zapata, TXLos Mogotes (Wilcox Cons.) | ActiveGas | 11,379 | Oct 29, 1999 | — | — |
| Benavides B. R. 2 #1542-505-34027 | Hilcorp Energy Company | Zapata, TXCisco-Benavides (Lobo Cons.) | ActiveGas | 10,370 | Oct 28, 1999 | — | — |
| Haynes L. #3942-505-34025 | Merit Energy Company | Zapata, TXLos Mogotes (Wilcox Cons.) | ActiveGas | 8,167 | Oct 26, 1999 | — | — |
| Haynes L. #4042-505-34026 | Merit Energy Company | Zapata, TXLos Mogotes (Wilcox Cons.) | ActiveGas | 9,200 | Oct 26, 1999 | — | — |
| Vasquez-Sharp-Anders Gas Unit #142-505-32867 | Hilcorp Energy Company | Zapata, TXZapata (Reklaw 4300) | Temporarily abandonedGas | 7,464 | Oct 20, 1999 | — | — |
| Vela-Cuellar #442-505-32938 | Hilcorp Energy Company | Zapata, TXZapata (Reklaw 4300) | Temporarily abandonedGas | 8,650 | Oct 20, 1999 | — | — |
| Ramirez M. R. #742-505-34023 | Vantage Operating II LLC | Zapata, TXLopeno (Consolidated) | Temporarily abandonedGas | 11,103 | Oct 20, 1999 | — | — |
| Slator Ranch #2242-505-32019 | Wagner Oil Company | Zapata, TXLas Ovejas (Lobo 3 FB-D) | PluggedGas | 12,600 | Oct 19, 1999 | — | — |
| Alexander et al #142-505-32327 | EOG Resources Inc. | Zapata, TXTigre Grande (12000) | PluggedGas | 14,000 | Oct 19, 1999 | — | — |
| Mecom J. W. #10642-505-34022 | Paleo Oil Company LLC | Zapata, TXJ. C. Martin (Lobo) | ActiveGas | 9,350 | Oct 18, 1999 | — | — |