| Haynes L. #3342-505-34714 | Merit Energy Company | Zapata, TXLos Mogotes (Wilcox Cons.) | ActiveGas | 9,850 | Apr 16, 2003 | — | — |
| Cuellar #142-505-34716 | El Paso E & P Company L. P. | Zapata, TXCuellar NW (10 500) | PluggedGas | 13,000 | Apr 16, 2003 | — | — |
| Bruni Mineral Trust D #342-505-34715 | Houston Exploration Company The | Zapata, TXLa Perla (Lobo Cons.) | PluggedGas | 11,500 | Apr 15, 2003 | — | — |
| Leonardo #3742-505-34694 | Houston Exploration Company The | Zapata, TXWildcat | PluggedGas | 10,500 | Apr 14, 2003 | — | — |
| Jennings #8242-505-34713 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | ActiveGas | 12,860 | Apr 14, 2003 | — | — |
| Cavazos #542-505-34711 | Chesapeake Operating Inc. | Zapata, TXEN Seguido (Wilcox) | PluggedGas | 14,000 | Apr 11, 2003 | — | — |
| Jennings #7842-505-34708 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | ActiveGas | 12,900 | Apr 9, 2003 | — | — |
| Zachry H. B. Company #742-505-34709 | STX Operating Company | Zapata, TXFandango (Wilcox Consolidated) | ActiveGas | 17,040 | Apr 9, 2003 | — | — |
| Jennings Ranch AA #2842-505-34704 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | PluggedGas | 13,600 | Apr 8, 2003 | — | — |
| Jennings Ranch AA #3142-505-34705 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | PluggedGas | 13,600 | Apr 8, 2003 | — | — |
| Garza L. #2642-505-34707 | Mountain V Texas LLC | Zapata, TXGarza (Consolidated) | ActiveGas | 13,000 | Apr 8, 2003 | — | — |
| Uribe I. C. #242-505-32914 | EOG Resources Inc. | Zapata, TXLas Ovejas (Wilcox 8400) | PluggedGas | 10,500 | Apr 3, 2003 | — | — |
| Jennings #242-505-34112 | XTO Energy Inc. | Zapata, TXMartinez (5TH Hinnant) | PluggedGas | 13,200 | Apr 3, 2003 | — | — |
| Jennings Ranch AA #3042-505-34703 | Hilcorp Energy Company | Zapata, TXCharco (9900) | ActiveGas | 13,155 | Apr 3, 2003 | — | — |
| Rathmell Land & Cattle Company #1__42-505-34702 | — | Zapata, TX | Plugged | 9,000 | Apr 2, 2003 | — | — |
| Jennings Ranch C #5342-505-34701 | Hilcorp Energy Company | Zapata, TXCharco (9900) | ActiveGas | 12,761 | Apr 1, 2003 | — | — |
| Garza A. #1742-505-34674 | Hilcorp Energy Company | Zapata, TXCharco (9900) | ActiveGas | 10,100 | Mar 27, 2003 | — | — |
| R.M.T. #242-505-34698 | Hilcorp Energy Company | Zapata, TXExsun (Lobo Cons.) | ActiveGas | 10,500 | Mar 26, 2003 | — | — |
| El Clareno #1__42-505-34699 | — | Zapata, TXRoleta (Wilcox Consolidated) | Plugged | 14,000 | Mar 26, 2003 | — | — |
| Ramirez Federico #1 S42-505-32410 | Vantage Operating II LLC | Zapata, TXLopeno (Consolidated) | ActiveGas | 11,229 | Mar 25, 2003 | — | — |
| Antonio Martinez et al Gas Unit #442-505-34697 | — | Zapata, TXBashara-Hereford (7300) | Plugged | 9,900 | Mar 25, 2003 | — | — |
| Antonio Martinez et al a GU #442-505-34696 | Hilcorp Energy Company | Zapata, TXBashara-Hereford (7300) | ActiveGas | 8,760 | Mar 24, 2003 | — | — |
| Asche #7042-505-34690 | Hilcorp Energy Company | Zapata, TXCharco (9900) | ActiveGas | 10,140 | Mar 19, 2003 | — | — |
| Asche #7142-505-34691 | Hilcorp Energy Company | Zapata, TXCharco (9900) | ActiveGas | 13,000 | Mar 19, 2003 | — | — |
| Asche #7242-505-34692 | Hilcorp Energy Company | Zapata, TXCharco (9900) | ActiveGas | 10,200 | Mar 19, 2003 | — | — |
| Asche #7342-505-34693 | Hilcorp Energy Company | Zapata, TXCharco (9900) | ActiveGas | 12,250 | Mar 19, 2003 | — | — |
| Jennings #7742-505-34688 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | Temporarily abandonedGas | 13,002 | Mar 18, 2003 | — | — |
| Jennings #8042-505-34689 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | ActiveGas | 13,018 | Mar 18, 2003 | — | — |
| El Peyote Mineral Trust #542-505-33229 | TD Natural Resources LLC | Zapata, TXLoma Vieja (Wilcox) | ActiveInjection | 6,016 | Mar 17, 2003 | — | — |
| Laurel Sergio #342-505-31820 | Varas Energy Operating Company | Zapata, TXLas Ovejas (Wilcox 8400) | Temporarily abandonedGas | 9,451 | Mar 14, 2003 | — | — |
| Jennings Ranch C #4842-505-34670 | Hilcorp Energy Company | Zapata, TXCharco (9900) | ActiveGas | 12,765 | Mar 12, 2003 | — | — |
| Jennings Ranch AA #2742-505-34675 | Hilcorp Energy Company | Zapata, TXCharco (9900) | ActiveGas | 12,818 | Mar 7, 2003 | — | — |
| Haynes L. #8842-505-34680 | Merit Energy Company | Zapata, TXLos Mogotes (Wilcox Cons.) | Temporarily abandonedGas | 11,000 | Mar 7, 2003 | — | — |
| Haynes L. #8742-505-34682 | Merit Energy Company | Zapata, TXLos Mogotes (Wilcox Cons.) | ActiveGas | 9,350 | Mar 7, 2003 | — | — |
| Jennings Ranch B1 #1242-505-34686 | Hilcorp Energy Company | Zapata, TXCharco (9900) | ActiveGas | 13,185 | Mar 7, 2003 | — | — |
| Cuellar Trust GU #242-505-32204 | Bordertown Energy Resources LLC | Zapata, TXCisco-Benavides (Lobo Cons.) | Temporarily abandonedGas | 9,900 | Mar 6, 2003 | — | — |
| Leonardo #3442-505-34683 | Hilcorp Energy Company | Zapata, TXCharco (9200) | ActiveGas | 10,023 | Mar 6, 2003 | — | — |
| Leonardo #3542-505-34684 | Houston Exploration Company The | Zapata, TXRamirez (Lobo) | PluggedGas | 13,500 | Mar 6, 2003 | — | — |
| Leonardo #3642-505-34685 | Hilcorp Energy Company | Zapata, TXCharco (9900) | ActiveGas | 10,500 | Mar 6, 2003 | — | — |
| Jennings #142-505-34050 | XTO Energy Inc. | Zapata, TXMartinez (5TH Hinnant) | PluggedGas | 13,000 | Mar 3, 2003 | — | — |
| Jennings Ranch AA #2942-505-34679 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | ActiveGas | 12,780 | Mar 3, 2003 | — | — |
| G.B.L. #142-505-34678 | Noble Energy Inc | Zapata, TXFandango (Wilcox Consolidated) | PluggedGas | 16,000 | Feb 28, 2003 | — | — |
| Vela-Lopeno Minerals Ltd #342-505-34358 | Vantage Operating II LLC | Zapata, TXLopeno ( Reklaw B) | ActiveGas | 11,285 | Feb 27, 2003 | — | — |
| La Perla #24142-505-34663 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 9,200 | Feb 27, 2003 | — | — |
| Jacoba #642-505-34671 | Hilcorp Energy Company | Zapata, TXHaynes (Middle Wilcox Cons.) | ActiveGas | 14,000 | Feb 24, 2003 | — | — |
| Guerra Raul #3 T42-505-02918 | Vantage Operating II LLC | Zapata, TXLopeno (Consolidated) | Temporarily abandonedGas | 10,300 | Feb 21, 2003 | — | — |
| Guerra Raul #842-505-33832 | Vantage Operating II LLC | Zapata, TXLopeno ( Reklaw B) | Temporarily abandonedGas | 9,712 | Feb 21, 2003 | — | — |
| BMT/K&H M #142-505-34676 | EOG Resources Inc. | Zapata, TXZwebb (10350) | PluggedGas | 13,100 | Feb 21, 2003 | — | — |
| New Zapata East G.U. #142-505-34677 | Hilcorp Energy Company | Zapata, TXExsun (Lobo Cons.) | ActiveGas | 10,400 | Feb 21, 2003 | — | — |
| Jennings Ranch C #4442-505-34660 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | ActiveGas | 13,004 | Feb 20, 2003 | — | — |