| Lopez Mineral Trust G.U. #1-T42-505-33737 | Devon Louisiana Corporation | Zapata, TXEl Mesquitito (L-1) | PluggedGas | 11,500 | Feb 19, 2003 | — | — |
| Asche #6942-505-34673 | Hilcorp Energy Company | Zapata, TXMunoz (Lobo) | ActiveGas | 12,343 | Feb 19, 2003 | — | — |
| Jennings Ranch B #1442-505-34669 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | ActiveGas | 13,085 | Feb 14, 2003 | — | — |
| Benavides #342-505-34668 | Merit Energy Company | Zapata, TXCinco de Mayo (Wilcox F ) | ActiveGas | 13,564 | Feb 13, 2003 | — | — |
| Haynes L. #8642-505-34667 | Merit Energy Company | Zapata, TXLos Mogotes (Wilcox Cons.) | ActiveGas | 10,550 | Feb 11, 2003 | — | — |
| Haynes Mineral Trust #2242-505-34665 | Hilcorp Energy Company | Zapata, TXHaynes (Middle Wilcox Cons.) | ActiveGas | 14,200 | Feb 10, 2003 | — | — |
| Flores L. G. #4042-505-34664 | Hilcorp Energy Company | Zapata, TXHaynes (Middle Wilcox Cons.) | ActiveGas | 11,580 | Feb 7, 2003 | — | — |
| La Perla #24242-505-34661 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 9,600 | Feb 4, 2003 | — | — |
| Garza Heirs #142-505-34662 | Merit Energy Company | Zapata, TXLoma Vieja (Wilcox) | Temporarily abandonedGas | 15,647 | Feb 4, 2003 | — | — |
| Martinez S B #242-505-30960 | Varas Energy Operating Company | Zapata, TXHundido (Lobo) | PluggedGas | 11,600 | Jan 24, 2003 | — | — |
| Fernando Munoz Gas Unit 3 #7A42-505-34658 | Vantage Operating II LLC | Zapata, TXLopeno (Consolidated) | ActiveGas | 11,700 | Jan 22, 2003 | — | — |
| Velas Siete #142-505-34659 | Proline Energy Resources Inc | Zapata, TXEl Grullo (Wilcox 11 000) | Temporarily abandonedGas | 13,000 | Jan 22, 2003 | — | — |
| Jennings Ranch AA #1242-505-34652 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | ActiveGas | 13,000 | Jan 21, 2003 | — | — |
| Mecom J. W. #11642-505-34653 | Paleo Oil Company LLC | Zapata, TXJ. C. Martin (Lobo) | ActiveGas | 8,815 | Jan 21, 2003 | — | — |
| Mecom J. W. #11742-505-34654 | Paleo Oil Company LLC | Zapata, TXJ. C. Martin (Lobo) | ActiveGas | 8,509 | Jan 21, 2003 | — | — |
| Mecom J. W. #11842-505-34655 | Paleo Oil Company LLC | Zapata, TXJ. C. Martin (Lobo) | ActiveGas | 9,630 | Jan 21, 2003 | — | — |
| Garza L. #2542-505-34656 | Mountain V Texas LLC | Zapata, TXGarza (Consolidated) | ActiveGas | 12,730 | Jan 21, 2003 | — | — |
| Garza L. #2442-505-34657 | Mountain V Texas LLC | Zapata, TXGarza (Consolidated) | ActiveGas | 13,036 | Jan 21, 2003 | — | — |
| Haynes Mineral Trust #2142-505-34651 | Hilcorp Energy Company | Zapata, TXHaynes (Middle Wilcox Cons.) | ActiveGas | 14,200 | Jan 17, 2003 | — | — |
| Saldivar #142-505-33203 | Devon Energy Production Co L.P. | Zapata, TXMartinez (Hinnant 3RD.) | PluggedGas | 14,500 | Jan 15, 2003 | — | — |
| Jennings Ranch AA #2642-505-34648 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | Temporarily abandonedGas | 12,550 | Jan 8, 2003 | — | — |
| La Perla #23842-505-34649 | Hilcorp Energy Company | Zapata, TXLa Perla (Lobo Cons.) | ActiveGas | 9,300 | Jan 8, 2003 | — | — |
| Jennings Ranch AA #2442-505-34647 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | ActiveGas | 13,000 | Jan 7, 2003 | — | — |
| Jennings Roy #542-505-34650 | Chesapeake Operating Inc. | Zapata, TXWildcat | PluggedGas | 14,500 | Jan 7, 2003 | — | — |
| Benavides Belia R. C #342-505-33372 | EOG Resources Inc. | Zapata, TXHundido (9300) | PluggedGas | 11,650 | Jan 6, 2003 | — | — |
| Porras Gas Unit #642-505-34646 | Hilcorp Energy Company | Zapata, TXMunoz (Lobo) | ActiveGas | 13,000 | Jan 6, 2003 | — | — |
| E.B. Ramirez #1__42-505-34642 | — | Zapata, TXRoleta (Wilcox Consolidated) | Plugged | 10,300 | Dec 27, 2002 | — | — |
| Jennings Ranch D #1642-505-34643 | Hilcorp Energy Company | Zapata, TXCharco (9900) | ActiveGas | 12,696 | Dec 27, 2002 | — | — |
| Jennings Ranch D #1542-505-34644 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | Temporarily abandonedGas | 12,800 | Dec 27, 2002 | — | — |
| Jennings Ranch D #1242-505-34645 | Hilcorp Energy Company | Zapata, TXCharco (9900) | ActiveGas | 12,907 | Dec 27, 2002 | — | — |
| Haynes L. #7642-505-34637 | Merit Energy Company | Zapata, TXLos Mogotes (Wilcox Cons.) | ActiveGas | 8,482 | Dec 18, 2002 | — | — |
| Haynes L. #8442-505-34638 | Merit Energy Company | Zapata, TXLos Mogotes (Wilcox Cons.) | ActiveGas | 10,815 | Dec 18, 2002 | — | — |
| Muzza G. P. #1142-505-34641 | Shell Western E&P | Zapata, TXFandango West | PluggedGas | 17,050 | Dec 18, 2002 | — | — |
| Serna Donato #442-505-34640 | Vantage Operating II LLC | Zapata, TXLopeno (Consolidated) | Temporarily abandonedGas | 10,000 | Dec 17, 2002 | — | — |
| Haynes L. #8342-505-34634 | Merit Energy Company | Zapata, TXLos Mogotes (Wilcox Cons.) | Temporarily abandonedGas | 10,700 | Dec 11, 2002 | — | — |
| Haynes L. #4742-505-34635 | Merit Energy Company | Zapata, TXLos Mogotes (Wilcox Cons.) | Temporarily abandonedGas | 9,326 | Dec 10, 2002 | — | — |
| Martinez-Vela G.U. #142-505-34636 | Hilcorp Energy Company | Zapata, TXBashara-Hereford (7300) | ActiveGas | 9,800 | Dec 9, 2002 | — | — |
| Yzaguirre - Leo Gas Unit #1142-505-34631 | Hilcorp Energy Company | Zapata, TXHaynes (Middle Wilcox Cons.) | ActiveGas | 14,050 | Dec 4, 2002 | — | — |
| Haynes Mineral Trust #2042-505-34632 | Hilcorp Energy Company | Zapata, TXHaynes (Middle Wilcox Cons.) | ActiveGas | 13,800 | Dec 4, 2002 | — | — |
| Asche #6842-505-34633 | Hilcorp Energy Company | Zapata, TXWildcat | Temporarily abandonedGas | 9,943 | Dec 4, 2002 | — | — |
| R M T #142-505-34630 | Hilcorp Energy Company | Zapata, TXExsun (Lobo Cons.) | ActiveGas | 10,500 | Dec 2, 2002 | — | — |
| Flores L. G. #17R42-505-33242 | Hilcorp Energy Company | Zapata, TXHaynes (Middle Wilcox Cons.) | ActiveGas | 14,000 | Nov 21, 2002 | — | — |
| Yzaguirre Mineral Trust #1__42-505-34629 | — | Zapata, TXTaguache Creek (Wilcox 10800) | Plugged | 12,800 | Nov 18, 2002 | — | — |
| Jennings Ranch AA #2342-505-34627 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | ActiveGas | 13,043 | Nov 8, 2002 | — | — |
| Rathmell J.G. #1242-505-33152 | Plains Exploration & Prod. Co. | Zapata, TXHundido (Lobo) | PluggedGas | 11,250 | Nov 1, 2002 | — | — |
| Yzaguirre-Leo Gas Unit #1042-505-34621 | Hilcorp Energy Company | Zapata, TXHaynes (Middle Wilcox Cons.) | ActiveGas | 14,000 | Nov 1, 2002 | — | — |
| Asche #6742-505-34625 | Hilcorp Energy Company | Zapata, TXHaynes (Middle Wilcox Cons.) | ActiveGas | 12,967 | Nov 1, 2002 | — | — |
| Haynes Mineral Trust #1942-505-34626 | Hilcorp Energy Company | Zapata, TXHaynes (Middle Wilcox Cons.) | ActiveGas | 14,000 | Nov 1, 2002 | — | — |
| Jennings Ranch AA #2142-505-34623 | Hilcorp Energy Company | Zapata, TXCharco (9900) | ActiveGas | 12,900 | Oct 31, 2002 | — | — |
| Jennings Ranch AA #2242-505-34624 | Hilcorp Energy Company | Zapata, TXJennings Ranch (Lobo Cons.) | ActiveGas | 13,000 | Oct 31, 2002 | — | — |