| O'Connor B #2HHZ42-391-33286 | Greta Operating Company LLC | Refugio, TXGreta (4400) | Not on schedule | 4,600 | Nov 10, 2022 | — | — |
| Obrien J. M. -D- #4D42-391-30164 | Greta Operating Company LLC | Refugio, TXGreta Deep (5620) | PluggedOil | 8,300 | May 27, 1987 | — | — |
| Obrien J. M. -B- #142-391-81931 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | 4,404 | Dec 19, 1983 | — | — |
| Obrien J. M. D & E #542-391-30271 | Greta Operating Company LLC | Refugio, TXGreta Deep (5600) | PluggedGas | 6,800 | Jun 10, 1983 | — | — |
| Obrien J. M. -B- #11 C42-391-31343 | Greta Operating Company LLC | Refugio, TXGreta (900) | PluggedGas | 1,400 | Nov 30, 1982 | — | — |
| O Brien J.M. -a- #6 C42-391-30189 | Greta Operating Company LLC | Refugio, TXGreta (O-1) | Temporarily abandonedGas | 4,450 | Jun 16, 1982 | — | — |
| Heard J. F. B.- Tex #1342-391-00644 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Heard J. F. B.- Tex #1442-391-00645 | Greta Operating Company LLC | Refugio, TXGreta (4400) | ActiveOil | 4,418 | — | — | — |
| Heard J. F. B.- Tex #1542-391-00646 | Greta Operating Company LLC | Refugio, TXGreta (4400) | Shut inOil | 4,330 | — | — | — |
| Heard J. F. B.- Tex #1642-391-00647 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Heard J. F. B. #1842-391-00648 | Greta Operating Company LLC | Refugio, TXGreta (3500) | Shut inOil | 4,423 | — | — | — |
| Obrien J. J. -a- #342-391-00784 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. J. -a- #442-391-00785 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. J. -a- #142-391-00815 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. -a- #5 C42-391-00885 | Greta Operating Company LLC | Refugio, TXGreta (O-7) | Shut inGas | 6,420 | — | — | — |
| Heard J. F. B.- Tex #142-391-00890 | Greta Operating Company LLC | Refugio, TXGreta (4400) | Shut inOil | 4,424 | — | — | — |
| Heard J. F. B.- Tex #342-391-00892 | Greta Operating Company LLC | Refugio, TXGreta (4400) | Shut inOil | 4,394 | — | — | — |
| Heard J. F. B.- Tex #442-391-00893 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Heard J. F. B.- Tex #542-391-00894 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Heard J. F. B.- Tex #742-391-00896 | Greta Operating Company LLC | Refugio, TXGreta (4400) | Shut inOil | 4,330 | — | — | — |
| Heard J. F. B.- Tex #842-391-00897 | Greta Operating Company LLC | Refugio, TXGreta (4400) | Shut inOil | 4,330 | — | — | — |
| Heard J. F. B.- Tex #1042-391-00899 | Greta Operating Company LLC | Refugio, TXGreta (4400) | Shut inOil | 4,330 | — | — | — |
| Heard J. F. B.- Tex #1142-391-00900 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Heard J. F. B.- Tex #1242-391-00901 | Greta Operating Company LLC | Refugio, TXGreta (4400) | Shut inOil | 4,330 | — | — | — |
| Obrien J. J. -B- #342-391-00915 | Greta Operating Company LLC | Refugio, TXGreta (L- 8) | Temporarily abandonedGas | 5,941 | — | — | — |
| Obrien J. J. -B- #442-391-00916 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. -D- #3 D42-391-00919 | Greta Operating Company LLC | Refugio, TXGreta (L- 3) | PluggedGas | — | — | — | — |
| Obrien J. J. -a- #242-391-00932 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. D & E #e 3 F42-391-00940 | Greta Operating Company LLC | Refugio, TXGreta (L- 3) | Shut inGas | 3,432 | — | — | — |
| Heard F. V. W. #142-391-00941 | Greta Operating Company LLC | Refugio, TXGreta (4400) | ActiveOil | 4,330 | — | — | — |
| Oconnor Thos. #442-391-00974 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Oconnor Thos. #542-391-00975 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Oconnor Tom #542-391-00987 | Greta Operating Company LLC | Refugio, TXGreta (F-2 West) | Temporarily abandonedGas | 4,635 | — | — | — |
| Obrien J. M. -C- #342-391-00992 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. -C- #542-391-00994 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. -C- #5X42-391-00998 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. J. -a- #142-391-01007 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. J. -B- #5 D42-391-30227 | Greta Operating Company LLC | Refugio, TXGreta (4400) | ActiveInjection | 4,330 | — | — | — |
| Heard J. F. B.- Tex #2142-391-30252 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. J. -a- #1042-391-30330 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Oconnor Thos. #942-391-30340 | Greta Operating Company LLC | Refugio, TXGreta (4400) | Shut inOil | 4,450 | — | — | — |
| Obrien J. J. -a- #1142-391-30377 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. J. -a- #442-391-82060 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. J. -a- #342-391-82066 | Greta Operating Company LLC | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |