| Oconnor Mary Ellen -E- #11 C42-391-01860 | Exxon Corp. | RefugioMary Ellen Oconnor (FS-96) | Not on scheduleOil | 6,182 | Sep 30, 1999 | 1 | — |
| Heard J.F.B. #342-391-00862 | Exxon Corp. | RefugioGreta (C-1-a North) | PluggedGas | 4,384 | May 12, 1997 | 4 | Apr 2026 |
| O Connor Mary Ellen -a- #9 C42-391-01896 | Exxon Corp. | RefugioMary Ellen Oconnor (D-1) | PluggedGas | 6,025 | Oct 3, 1995 | 1 | Nov 2015 |
| Oconnor Mary Ellen -E- #1542-391-30038 | Exxon Corp. | RefugioMary Ellen Oconnor (D-1) | PluggedGas | 5,515 | Apr 19, 1995 | 4 | — |
| O Connor Thomas James -B- #1 C42-391-01941 | Exxon Corp. | RefugioMary Ellen Oconnor (FT-18 Sand) | PluggedOil | 6,036 | Jul 14, 1994 | 1 | — |
| Oconnor Mary Ellen -E- #1 U42-391-01854 | Exxon Corp. | RefugioMary Ellen Oconnor (FS-96) | Not on scheduleOil | 6,200 | Jun 13, 1994 | 1 | — |
| Oconnor Mary Ellen -E- #242-391-01855 | Exxon Corp. | RefugioMary Ellen Oconnor (FS-96) | Not on scheduleOil | 6,200 | Jun 13, 1994 | 1 | — |
| O Connor Mary Ellen -a- #442-391-01874 | Exxon Corp. | RefugioMary Ellen Oconnor (FQ-40 Sand) | Not on scheduleOil | 6,100 | Jun 13, 1994 | 1 | — |
| Oconnor Mary Ellen -B- #1242-391-01882 | Exxon Corp. | RefugioMary Ellen Oconnor (M-122) | PluggedGas | 6,200 | Jun 13, 1994 | 3 | — |
| O Connor Thomas James -B- #542-391-01945 | Exxon Corp. | RefugioMary Ellen Oconnor (FQ-40 Sand) | PluggedOil | 6,025 | Apr 22, 1994 | 1 | — |
| Mary Ellen O Connor a #642-391-01894 | Exxon Corp. | RefugioWildcat | PluggedOil | 6,017 | Feb 25, 1994 | 4 | Nov 2015 |
| Heard J. F. B. #2242-391-30203 | Exxon Corp. | RefugioGreta (L-13) | PluggedGas | 5,000 | Jan 31, 1994 | 2 | Apr 2026 |
| Oconnor Mary Ellen -E- #1242-391-01861 | Exxon Corp. | RefugioMary Ellen Oconnor (FQ- 9) | PluggedOil | 6,073 | Nov 30, 1993 | 1 | — |
| Lambert Mary F. a #942-391-30359 | Exxon Corp. | RefugioTom O Connor (4150) | PluggedOil | 6,200 | Jun 13, 1989 | 3 | — |
| Oconnor Thomas James TR #2 #d 16 F42-391-30034 | Exxon Corp. | RefugioWoodsboro South (4200) | PluggedGas | 5,975 | May 19, 1989 | 4 | — |
| Lambert Mary F. #142-391-01456 | Exxon Corp. | RefugioTom Oconnor (4400) | PluggedOil | 6,000 | May 16, 1989 | 4 | — |
| O Conner Thomas James -D- #2142-391-31830 | Exxon Corp. | RefugioWoodsboro | PluggedOil | 6,430 | May 2, 1989 | 3 | — |
| Obrien J. M. -D- #40142-391-01028 | Exxon Corp. | RefugioGreta (C-5) | PluggedGas | 4,405 | Oct 4, 1988 | 2 | — |
| Oconnor Thomas -C- #442-391-30393 | Exxon Corp. | RefugioGreta (L-12) | PluggedGas | 4,450 | Jul 15, 1988 | 4 | — |
| Heard Fannie V.W. #442-391-00791 | Exxon Corp. | RefugioGreta (O-4) | PluggedGas | 5,944 | Apr 22, 1988 | 4 | — |
| Heard Fannie V.W. #2842-391-31634 | Exxon Corp. | RefugioGreta Deep (5360) | PluggedOil | 7,630 | Feb 19, 1988 | 6 | Apr 2026 |
| Heard F.V.W. #8 D42-391-00794 | Exxon Corp. | RefugioGreta (F-2-A) | PluggedOil | 7,975 | Jan 21, 1988 | 4 | Apr 2026 |
| Heard F. V. W. #18 D42-391-00989 | Exxon Corp. | RefugioGreta Deep (5620) | PluggedGas | 6,415 | Jun 12, 1987 | 5 | — |
| Oconnor Mary Ellen -B- #1342-391-01883 | Exxon Corp. | RefugioMary Ellen Oconnor (FT-5) | PluggedOil | 6,200 | Apr 25, 1986 | 2 | — |
| Oconnor Mary Ellen -a- #2242-391-01915 | Exxon Corp. | RefugioMary Ellen Oconnor (FQ- 5) | PluggedGas | 5,990 | Apr 23, 1986 | 2 | — |
| Oconnor Thomas James -B- #1542-391-01954 | Exxon Corp. | RefugioMary Ellen Oconnor (H-105A) | PluggedGas | 6,500 | Feb 22, 1986 | 3 | — |
| Lambert Mary F. -a- #742-391-03950 | Exxon Corp. | RefugioTom Oconnor (5800) | PluggedOil | 4,052 | Feb 19, 1986 | 2 | — |
| Oconnor Thomas James -B- #342-391-01943 | Exxon Corp. | RefugioMary Ellen Oconnor (FT-5) | PluggedGas | 6,365 | Feb 18, 1986 | 2 | — |
| Oconnor T. J. -C- #1242-391-01967 | Exxon Corp. | RefugioMary Ellen Oconnor (H-117) | PluggedGas | 6,052 | Feb 18, 1986 | 2 | — |
| Oconnor Mary Ellen -C- #242-391-03230 | Exxon Corp. | RefugioMary Ellen Oconnor (4140) | PluggedGas | 6,070 | Sep 17, 1985 | 4 | — |
| Lambert Mary F. -a- #642-391-01378 | Exxon Corp. | RefugioTom O Connor (5410) | PluggedOil | 5,650 | Jun 27, 1985 | 2 | — |
| Oconnor Thomas James -C- #242-391-01961 | Exxon Corp. | RefugioMary Ellen Oconnor (4140) | PluggedGas | 6,150 | Feb 11, 1985 | 3 | — |
| Obrien J. M. #10142-391-01061 | Exxon Corp. | RefugioGreta (O-6) | PluggedGas | 4,401 | Dec 6, 1984 | 1 | Dec 1993 |
| Oconnor Mary Ellen -B- #342-391-01877 | Exxon Corp. | RefugioMary Ellen Oconnor (FT-8) | PluggedOil | 6,194 | Nov 14, 1984 | 1 | — |
| Oconnor Mary Ellen -F- #742-391-03239 | Exxon Corp. | RefugioWoodsboro South (4200) | PluggedGas | 6,155 | Nov 12, 1984 | 3 | — |
| Heard J. F. B. #142-391-00860 | Exxon Corp. | RefugioGreta (L- 8) | PluggedGas | 4,395 | Oct 16, 1984 | 1 | — |
| Lambert Mary F. -a- #242-391-01374 | Exxon Corp. | RefugioTom Oconnor (4400) | PluggedOil | 5,903 | Oct 3, 1984 | 1 | — |
| Heard, J. F. B. #3042-391-31752 | Exxon Corp. | RefugioGreta (4400) | Not on schedule | 4,972 | Aug 23, 1984 | 1 | — |
| Heard, J. F. B. #3142-391-31754 | Exxon Corp. | RefugioGreta (4400) | Not on schedule | 4,985 | Aug 23, 1984 | 1 | — |
| Oconnor Thomas James -D-Tract 2 #1242-391-02809 | Exxon Corp. | RefugioWoodsboro (FS-88) | PluggedGas | 9,000 | Jul 28, 1984 | 3 | — |
| Oconnor Thomas James -D- Tr.ii #20 D42-391-31152 | Exxon Corp. | RefugioMary Ellen Oconnor (FS-96) | PluggedOil | 6,330 | Jul 25, 1984 | 3 | — |
| Oconnor Mary Ellen -B- #1542-391-01885 | Exxon Corp. | RefugioMary Ellen Oconnor (FT-28) | PluggedGas | 6,200 | Jun 1, 1984 | 1 | — |
| Oconnor Thomas James -D- #17 F42-391-30075 | Exxon Corp. | RefugioMary Ellen O Connor (4890 SD) | PluggedGas | 5,970 | May 24, 1984 | 1 | — |
| Oconnor Mary Ellen -B- #1442-391-01884 | Exxon Corp. | RefugioMary Ellen Oconnor (FT-8) | PluggedOil | 6,200 | Apr 26, 1984 | 1 | — |
| Roche Trust #742-391-31730 | Exxon Corp. | Refugio | Not on schedule | 6,470 | Apr 24, 1984 | 1 | — |
| Roche Trust #842-391-31729 | Exxon Corp. | Refugio | Not on schedule | 6,450 | Apr 20, 1984 | 1 | — |
| O Conner T.J. II -D- #242-391-02747 | Exxon Corp. | RefugioWildcat | PluggedOil | 6,500 | Apr 18, 1984 | 2 | — |
| Roche Trust #642-391-31715 | Exxon Corp. | RefugioDevils Run (5970 Frio) | Not on schedule | 7,000 | Mar 20, 1984 | 1 | — |
| Heard J. F. B. #23 D42-391-31336 | Exxon Corp. | RefugioGreta (L-12 N) | PluggedGas | 4,750 | Mar 1, 1984 | 3 | — |
| Oconnor Thomas James -D- #342-391-01969 | Exxon Corp. | RefugioMary Ellen Oconnor (FQ-40 Sand) | PluggedOil | 7,000 | Jan 30, 1984 | 2 | — |