| Waddell Bros & Co #1942-495-32414 | Formentera Operations LLC only | WinklerWheeler West (Wolfcamp) | Shut inOil | 9,829 | May 23, 2025 | 4 | Apr 2026 |
| Blue Estate #1442-495-32185 | Formentera Operations LLC only | WinklerWheeler (Wichita-Albany) | ActiveOil | 10,700 | Sep 19, 2022 | 2 | Apr 2026 |
| Wheeler C.O. #442-495-05739 | Formentera Operations LLC only | WinklerWheeler (Wolfcamp) | Shut inOil | 9,320 | Sep 12, 2008 | 2 | Apr 2026 |
| Wheeler R. A. #242-495-05450 | Apv McCamey LLC only | WinklerWheeler (Wolfcamp) | Shut inOil | 10,652 | Aug 9, 1999 | 3 | Nov 2015 |
| Blue Estate #442-495-05187 | Formentera Operations LLC only | WinklerWheeler (Wolfcamp) | PluggedOil | 10,640 | Sep 15, 1997 | 3 | Apr 2026 |
| Blue R. H. #542-495-32058 | Formentera Operations LLC only | WinklerWheeler (Wolfcamp) | PluggedOil | 11,100 | Sep 12, 1997 | 3 | Apr 2026 |
| Johnson. W. D. et al -F- #642-301-30395 | Last Mile Production LLC only | LovingDimmitt (Delaware Cons) | Shut inOil | 6,300 | May 13, 1997 | 2 | Jul 2024 |
| Amburgey #142-135-37023 | Grace Petroleum L.P. only | EctorWheeler (Wolfcamp) | PluggedOil | 8,000 | Feb 21, 1995 | 1 | May 2004 |
| Blue Estate #1342-135-35585 | Formentera Operations LLC only | EctorWheeler (Wolfcamp) | ActiveOil | 10,580 | Oct 19, 1992 | 3 | Apr 2026 |
| Wheeler R. A. -F- #142-495-05313 | Formentera Operations LLC only | WinklerWheeler (Wolfcamp) | Shut inOil | 10,380 | Jun 29, 1990 | 2 | Feb 2022 |
| Thomas A.E. -B- #142-135-07102 | Double Barrel Oil LLC only | EctorWheeler (Silurian) | ActiveOil | 11,400 | Oct 4, 1989 | 3 | Apr 2026 |
| Blue Estate #242-495-05197 | Formentera Operations LLC only | WinklerWheeler (Wolfcamp) | Shut inOil | 10,710 | Apr 20, 1988 | 2 | Apr 2026 |
| Blue R. H. #242-135-08117 | Formentera Operations LLC only | EctorWheeler (Wolfcamp) | PluggedOil | 10,591 | Mar 14, 1988 | 1 | Apr 2026 |
| Wheeler R. A C #342-495-05317 | Formentera Operations LLC only | WinklerWheeler (Wolfcamp) | ActiveOil | 10,638 | Mar 14, 1988 | 2 | May 2024 |
| Wheeler R. A. #142-135-08297 | Formentera Operations LLC only | EctorWheeler (Waddell) | Shut inOil | 10,628 | Mar 8, 1988 | 1 | Apr 2026 |
| Blue Estate #642-135-08891 | Formentera Operations LLC only | EctorWheeler (Wolfcamp) | ActiveOil | 10,700 | Mar 3, 1988 | 2 | Apr 2026 |
| Blue Estate #142-495-05189 | Formentera Operations LLC only | WinklerWheeler (Wolfcamp) | Shut inOil | 10,694 | Mar 3, 1988 | 2 | Apr 2026 |
| Wheeler R. A C #142-495-05310 | Formentera Operations LLC only | WinklerWheeler (Wolfcamp) | Shut inOil | 10,641 | Aug 6, 1987 | 2 | May 2024 |
| Blue Estate #542-135-08890 | Formentera Operations LLC only | EctorWheeler (Wolfcamp) | Shut inOil | 10,613 | Jul 22, 1987 | 1 | Apr 2026 |
| Wheeler R. A. -a- #342-495-05318 | Formentera Operations LLC only | WinklerWheeler (Wolfcamp) | Shut inOil | 10,590 | Jun 11, 1987 | 2 | May 2020 |
| Cahill T. G. -B- #242-135-35540 | Formentera Operations LLC only | EctorWheeler (Wolfcamp) | ActiveOil | 10,583 | May 7, 1987 | 1 | Apr 2026 |
| Waddell #242-495-06170 | Q Natural Resources LLC only | WinklerWheeler (Wolfcamp) | Shut inOil | 9,445 | May 6, 1987 | 1 | Dec 2023 |
| Edwards Will P. -a- #2 U42-135-03599 | Apache Corporation only | EctorWheeler (Wolfcamp) | PluggedOil | 10,614 | Mar 30, 1987 | 2 | Sep 2012 |
| Blue Estate #1142-495-31059 | Formentera Operations LLC only | WinklerWheeler (Wolfcamp) | ActiveOil | 11,472 | Jul 18, 1986 | 4 | Apr 2026 |
| Blue Estate #1042-495-05193 | Formentera Operations LLC only | WinklerWheeler (Wolfcamp) | Not on scheduleOil | 8,560 | Oct 2, 1985 | 1 | — |
| Wheeler R. A. -B- #342-495-05320 | Formentera Operations LLC only | WinklerWheeler (Wolfcamp) | Not on scheduleOil | 9,321 | Oct 2, 1985 | 1 | — |
| Wheeler A. E. #542-495-02746 | Breck Operating Corp. only | WinklerWheeler (Wolfcamp) | PluggedOil | 8,375 | Mar 18, 1982 | 1 | — |
| Cahill T. G. -B- #142-135-08065 | Formentera Operations LLC only | EctorWheeler (Wolfcamp) | ActiveOil | 9,360 | Jan 28, 1982 | 1 | Apr 2026 |
| Blue Estate #742-495-05194 | Formentera Operations LLC only | WinklerWheeler (Wolfcamp) | Shut inOil | 9,212 | Jan 28, 1982 | 1 | Apr 2026 |
| Wheeler A.E. #442-495-02745 | Petex only | WinklerWheeler (Devonian) | ActiveOil | 8,590 | Jul 29, 1981 | 1 | Apr 2026 |
| Edwards Will P. -a- #1D42-135-03598 | Formentera Operations LLC only | EctorWheeler (Ellenburger) | Shut inOil | 10,650 | Jun 5, 1981 | 1 | — |
| Amburgey -22- #142-135-33613 | Hillin Prod. Co. only | EctorWheeler (Wolfcamp) | PluggedOil | 6,700 | Apr 3, 1981 | 1 | — |
| TXL #142-135-05995 | TXO Production Corp. only | EctorWheeler (Silurian) | PluggedOil | 10,685 | Jan 8, 1979 | 1 | — |
| Wheeler R. A. -B- #2 U42-495-05315 | Formentera Operations LLC only | WinklerWheeler (Wolfcamp) | Shut inOil | 10,697 | Apr 4, 1978 | 1 | Aug 2020 |
| TXL -G- #242-135-05760 | Double Barrel Oil LLC only | EctorWheeler (Wolfcamp) | ActiveOil | 7,720 | — | 0 | — |
| Thomas A. E. -B- #242-135-07103 | Double Barrel Oil LLC only | EctorWheeler (Wolfcamp) | ActiveOil | 7,797 | — | 0 | — |
| 1 U42-135-08063 | Amoco Production Company only | EctorWheeler (Wolfcamp) | Not on scheduleOil | — | — | 0 | — |
| Blue R. H. #342-135-08118 | Formentera Operations LLC only | EctorWheeler (Wolfcamp) | ActiveOil | 7,685 | — | 0 | — |
| Blue R. H. #442-135-08119 | Formentera Operations LLC only | EctorWheeler (Wolfcamp) | Shut inOil | 7,783 | — | 0 | — |
| Blue Estate #842-135-08120 | Formentera Operations LLC only | EctorWheeler (Wolfcamp) | PluggedOil | — | — | 0 | — |
| Wheeler R. A. -F- #2 U42-135-08296 | Formentera Operations LLC only | EctorWheeler (Wolfcamp) | PluggedOil | — | — | 0 | — |
| Wheeler R. A. #242-135-08298 | Formentera Operations LLC only | EctorWheeler (Wolfcamp) | PluggedOil | — | — | 0 | — |
| 2 T42-135-08916 | Phillips Petroleum Company only | EctorWheeler (Wolfcamp) | Not on scheduleOil | — | — | 0 | — |
| Edwards Will P. -a- #342-135-10782 | Apache Corporation only | EctorWheeler (Wolfcamp) | PluggedOil | — | — | 0 | — |
| Wheeler R. A. #342-135-10855 | Formentera Operations LLC only | EctorWheeler (Wolfcamp) | ActiveOil | 7,694 | — | 0 | — |
| Edwards Will P. -a- #442-135-10891 | Apache Corporation only | EctorWheeler (Wolfcamp) | PluggedOil | — | — | 0 | — |
| Wheeler R. A. #442-135-10904 | Formentera Operations LLC only | EctorWheeler (Wolfcamp) | Shut inOil | 7,900 | — | 0 | — |
| Ector -AV- Fee #242-135-20839 | Texaco E & P Inc. only | EctorWheeler (Wolfcamp) | Not on scheduleOil | — | — | 0 | — |
| Ector -AV- Fee #542-135-21111 | Texaco E & P Inc. only | EctorWheeler (Wolfcamp) | Not on scheduleOil | — | — | 0 | — |
| Ector -AV- Fee #342-135-83234 | Texaco E & P Inc. only | EctorWheeler (Wolfcamp) | Not on scheduleOil | — | — | 0 | — |