| TXL North Unit #49042-135-35691 | Formentera Operations LLC only | Ector, TXTXL (Tubb) | ActiveOil | 7,033 | Nov 9, 1987 | — | — |
| TXL North Unit #44842-135-35693 | Formentera Operations LLC only | Ector, TXTXL (Tubb) | Shut inOil | 6,849 | Nov 9, 1987 | — | — |
| TXL North Unit #450W42-135-35694 | Formentera Operations LLC only | Ector, TXTXL (Tubb) | ActiveInjection | 6,840 | Nov 9, 1987 | — | — |
| TXL #142-135-35688 | Vanguard Permian LLC only | Ector, TXCowden North | PluggedOil | 4,600 | Nov 6, 1987 | — | — |
| North Penwell Unit #18042-135-35689 | Ring Energy Inc. only | Ector, TXPenwell | PluggedOil | 5,000 | Nov 6, 1987 | — | — |
| Johnson -B-37- #242-135-35686 | Slant Operating LLC only | Ector, TXCowden North (Canyon) | PluggedOil | 9,300 | Nov 5, 1987 | — | — |
| Johnson -B-36- #142-135-35687 | OXY USA Inc. only | Ector, TXCowden North (Canyon) | ActiveOil | 9,200 | Nov 5, 1987 | — | — |
| Cummins P #342-135-00140 | Octane Energy Operating LLC only | Ector, TXGoldsmith N. (San Andres Con.) | ActiveOil | 6,212 | Nov 2, 1987 | — | — |
| Cowden Elliott F. -a- #17642-135-35682 | Occidental Permian Ltd. only | Ector, TXFoster | PluggedOil | 4,700 | Oct 30, 1987 | — | — |
| Cowden Elliott F. -a- #17542-135-35683 | Occidental Permian Ltd. only | Ector, TXFoster | ActiveInjection | 4,467 | Oct 30, 1987 | — | — |
| Texaco-Slator -22- #242-135-35674 | Rust Oil Corp. only | Ector, TXGoldsmith (5600) | PluggedOil | 8,500 | Oct 28, 1987 | — | — |
| TXL North Unit #36842-135-35676 | Formentera Operations LLC only | Ector, TXTXL (Tubb) | ActiveOil | 6,910 | Oct 28, 1987 | — | — |
| TXL North Unit #48042-135-35677 | Formentera Operations LLC only | Ector, TXTXL (Tubb) | ActiveOil | 6,835 | Oct 28, 1987 | — | — |
| TXL North Unit #52142-135-35678 | Formentera Operations LLC only | Ector, TXTXL (Tubb) | Shut inOil | 6,880 | Oct 28, 1987 | — | — |
| Johnson J. L. -a- #342-135-35680 | O Ryan Oil and Gas only | Ector, TXCowden South (Canyon 8790) | ActiveOil | 9,100 | Oct 28, 1987 | — | — |
| Cowden -31- #242-135-35681 | Bustamante Resources LLC only | Ector, TXCowden (Cisco) | ActiveOil | 8,950 | Oct 28, 1987 | — | — |
| Cowden -32- #142-135-35679 | Prime Operating Company only | Ector, TXCowden (Cisco) | PluggedOil | 9,300 | Oct 27, 1987 | — | — |
| South Cowden Canyon Unit #2442-135-35663 | OXY USA Inc. only | Ector, TXCowden South (Canyon 8900) | Shut inOil | 9,151 | Oct 23, 1987 | — | — |
| TXL -L- a/C 2 #3042-135-20498 | Formentera Operations LLC only | Ector, TXTXL (Devonian) | Shut inOil | 9,370 | Oct 22, 1987 | — | — |
| TXL North Unit #44442-135-35671 | Formentera Operations LLC only | Ector, TXTXL (Tubb) | Shut inOil | 6,800 | Oct 22, 1987 | — | — |
| Moss -B- #142-135-35675 | Occidental Permian Ltd. only | Ector, TXCowden South (Canyon 8900) | PluggedOil | 9,500 | Oct 22, 1987 | — | — |
| Parker J. E. -C- #342-135-03678 | Baker Operating Inc. only | Ector, TXTXL (Wichita Albany South) | ActiveOil | 9,750 | Oct 21, 1987 | — | — |
| TXL North Unit #52842-135-35668 | Formentera Operations LLC only | Ector, TXTXL (Tubb) | Shut inOil | 7,019 | Oct 15, 1987 | — | — |
| TXL North Unit #52642-135-35669 | Formentera Operations LLC only | Ector, TXTXL (Tubb) | Shut inOil | 6,870 | Oct 15, 1987 | — | — |
| TXL North Unit #51842-135-35670 | Formentera Operations LLC only | Ector, TXTXL (Tubb) | Shut inOil | 6,880 | Oct 15, 1987 | — | — |
| TXL North Unit #26442-135-35672 | Formentera Operations LLC only | Ector, TXTXL (Tubb) | Shut inOil | 6,900 | Oct 15, 1987 | — | — |
| Cowden Elliott F. -B- #10142-135-35673 | Occidental Permian Ltd. only | Ector, TXFoster | PluggedOil | 4,600 | Oct 15, 1987 | — | — |
| Barrow Augusta #1 A42-135-35666 | Sheridan Production Company LLC only | Ector, TXLawson (San Andres) | PluggedOil | 4,600 | Oct 14, 1987 | — | — |
| Williamson -C- #242-135-35667 | Jay Management Company LLC only | Ector, TXGoldsmith (Clear Fork) | ActiveOil | 5,838 | Oct 14, 1987 | — | — |
| Foster-Johnson Unit #141642-135-35665 | Sun Expl. & Prod. Co.-Midlandpermitted by · no operator of record | Ector, TXFoster | Not on schedule | 4,600 | Oct 13, 1987 | — | — |
| Cummins P #242-135-00139 | Octane Energy Operating LLC only | Ector, TXGoldsmith N. (San Andres Con.) | ActiveOil | 5,775 | Oct 12, 1987 | — | — |
| Connell A.B. -a- #242-135-01680 | Landmark Reserves Inc. only | Ector, TXJordan (Wichita Albany) | PluggedOil | 8,990 | Oct 7, 1987 | — | — |
| TXL North Unit #37442-135-35664 | Formentera Operations LLC only | Ector, TXTXL (Tubb) | Shut inOil | 6,914 | Oct 6, 1987 | — | — |
| Mins -DD #842-135-35661 | Maverick Permian LLC only | Ector, TXGoldsmith N. (San Andres Con.) | PluggedOil | 4,600 | Sep 24, 1987 | — | — |
| Jennifer (Queen) Unit #36WI42-135-35662 | Richland Resources Corporation only | Ector, TXConcho Bluff North (Queen) | Shut inOil | 4,600 | Sep 24, 1987 | — | — |
| McNamara Ruth #242-135-35659 | Amoco Production Company only | Ector, TXRatliff N. (Wolfcamp) | PluggedOil | 9,700 | Sep 23, 1987 | — | — |
| Jennifer a #2542-135-35660 | Rendova Oil Copermitted by · no operator of record | Ector, TXConcho Bluff, North (Queen) | Plugged | 4,700 | Sep 23, 1987 | — | — |
| Jennifer a #2642-135-35658 | Rendova Oil Copermitted by · no operator of record | Ector, TXConcho Bluff, North (Queen) | Plugged | 4,700 | Sep 22, 1987 | — | — |
| TXL North Unit #46042-135-35655 | Formentera Operations LLC only | Ector, TXTXL (Tubb) | Shut inOil | 7,013 | Sep 21, 1987 | — | — |
| Moss Paul #1542-135-35656 | Laguna Petroleum Corporation only | Ector, TXCowden South | ActiveOil | 4,254 | Sep 21, 1987 | — | — |
| East Cowden (Grayburg) Unit #79W42-135-35645 | GL Energy Operating LLC only | Ector, TXCowden North | PluggedOil | 4,700 | Sep 18, 1987 | — | — |
| East Cowden (Grayburg) Unit #81W42-135-35646 | GL Energy Operating LLC only | Ector, TXCowden North | ActiveInjection | 4,695 | Sep 18, 1987 | — | — |
| Penwell Unit #2392W42-135-35649 | Ctoc Energy LLC only | Ector, TXPenwell | Shut inOil | 3,950 | Sep 18, 1987 | — | — |
| Penwell Unit #2343W42-135-35650 | Ctoc Energy LLC only | Ector, TXPenwell | ActiveInjection | 3,950 | Sep 18, 1987 | — | — |
| Penwell Unit #231442-135-35651 | Ctoc Energy LLC only | Ector, TXPenwell | Shut inOil | 3,900 | Sep 18, 1987 | — | — |
| Penwell Unit #2323W42-135-35652 | Ctoc Energy LLC only | Ector, TXPenwell | ActiveInjection | 3,900 | Sep 18, 1987 | — | — |
| Penwell Unit #1380W42-135-35653 | Ctoc Energy LLC only | Ector, TXPenwell | Shut inOil | 3,900 | Sep 18, 1987 | — | — |
| Penwell Unit #1373W42-135-35654 | Ctoc Energy LLC only | Ector, TXPenwell | Shut inOil | 3,900 | Sep 18, 1987 | — | — |
| East Cowden (Grayburg) Unit #80W42-135-35647 | GL Energy Operating LLC only | Ector, TXCowden North | ActiveInjection | 4,700 | Sep 17, 1987 | — | — |
| TXL North Unit #48742-135-35639 | Formentera Operations LLC only | Ector, TXTXL (Tubb) | ActiveOil | 6,990 | Sep 16, 1987 | — | — |