| Oconnor T. #642-391-00930 | Acock/Anaqua Operating Co. LP only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Oconnor Thomas #7 D42-391-00931 | Chilton Energy only | Refugio, TXGreta Deep (5800) | PluggedOil | — | — | — | — |
| Obrien J. J. -a- #242-391-00932 | Greta Operating Company LLC only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. J. -C- #1D42-391-00933 | Acock/Anaqua Operating Co. LP only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. -D- & -E- #e 242-391-00939 | Chilton Energy only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. D & E #e 3 F42-391-00940 | Greta Operating Company LLC only | Refugio, TXGreta (L- 3) | Shut inGas | 3,432 | — | — | — |
| Heard F. V. W. #142-391-00941 | Greta Operating Company LLC only | Refugio, TXGreta (4400) | ActiveOil | 4,330 | — | — | — |
| Heard Fannie V. W. #5 H42-391-00946 | Dorchester Operating Company LLC only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Heard Fannie V.W. #1042-391-00947 | Exxon Corp. only | Refugio, TXGreta (L- 5) | PluggedGas | — | — | — | — |
| Heard Fannie V. W. #1142-391-00948 | Dorchester Operating Company LLC only | Refugio, TXGreta (4400) | ActiveOil | 4,330 | — | — | — |
| Heard Fannie V.W. #1542-391-00949 | Primrose Operating Company only | Refugio, TXGreta (L- 3) | PluggedGas | — | — | — | — |
| O Connor Thomas -C- #142-391-00950 | Exxon Corp. only | Refugio, TXGreta (L- 6 West) | PluggedGas | — | — | — | — |
| Obrien J. M. -a- #g 142-391-00951 | Jones Edwin M. Oil Co. only | Refugio, TXGreta (L- 6 West) | PluggedGas | — | — | — | — |
| Obrien J. M. -a--West 126 Ac. #2 T42-391-00952 | Jones Edwin M. Oil Co. only | Refugio, TXGreta (4400) | Not on scheduleOil | — | — | — | — |
| Obrien J. M. -a--West 126 Ac. #442-391-00954 | Jones Edwin M. Oil Co. only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. -a--West 126 Ac. #542-391-00955 | Jones Edwin M. Oil Co. only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J.M. -a- East 101 Ac. 6 #642-391-00956 | Dewbre Petroleum Corporation only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J.M. -a- East 101 Ac. 6 #842-391-00958 | Dewbre Petroleum Corporation only | Refugio, TXGreta (4400) | ActiveInjection | 4,392 | — | — | — |
| Obrien J.M. -a- East 101 Ac. 6 #942-391-00959 | Dewbre Petroleum Corporation only | Refugio, TXGreta (4400) | ActiveInjection | 4,393 | — | — | — |
| 842-391-00961 | Josey Lenoir M. Inc. only | Refugio, TXGreta (C-1) | PluggedGas | — | — | — | — |
| Obrien J. M. #942-391-00962 | South Texas Operating Company only | Refugio, TXGreta (4400) | ActiveInjection | 4,395 | — | — | — |
| Obrien J. M. #1042-391-00963 | South Texas Operating Company only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Oconnor Tom/Gas Prod. Area-C-/ #342-391-00964 | Chilton Energy only | Refugio, TXGreta (L- 3) | PluggedGas | — | — | — | — |
| Obrien J. M. -C- #142-391-00965 | Greta Production Company only | Refugio, TXGreta (L- 5) | PluggedGas | — | — | — | — |
| Obrien J. M. -J- #2 T42-391-00966 | Chilton Energy only | Refugio, TXGreta (L- 3) | PluggedGas | — | — | — | — |
| Obrien J. M. -K- #342-391-00969 | Amoco Production Company only | Refugio, TXGreta (4400) | Not on scheduleOil | — | — | — | — |
| Obrien J. M. -K- #442-391-00970 | Amoco Production Company only | Refugio, TXGreta (4400) | Not on scheduleOil | — | — | — | — |
| Oconnor Thos. #442-391-00974 | Greta Operating Company LLC only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Oconnor Thos. #542-391-00975 | Greta Operating Company LLC only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Oconnor Thomas #642-391-00976 | Acock/Anaqua Operating Co. LC only | Refugio, TXGreta Deep (5430) | PluggedOil | — | — | — | — |
| Obrien J. M. -a- #g 2 U42-391-00977 | Peet Oil Co&jones Edwin M.oil Co only | Refugio, TXGreta (O-6) | PluggedGas | — | — | — | — |
| Obrien J. M. -a- #a 1142-391-00978 | Dewbre Petroleum Corporation only | Refugio, TXGreta (F-1 West) | PluggedGas | — | — | — | — |
| Oconnor Thos. #342-391-00985 | Acock/Anaqua Operating Co. LP only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Oconnor Tom #542-391-00987 | Greta Operating Company LLC only | Refugio, TXGreta (F-2 West) | Temporarily abandonedGas | 4,635 | — | — | — |
| Obrien J. M. -D- & -E- #4 E42-391-00988 | Acock/Anaqua Operating Co. LP only | Refugio, TXGreta Deep (5600) | PluggedOil | — | — | — | — |
| Obrien J. M. -C- #242-391-00991 | Arco Oil & Gas Co. only | Refugio, TXGreta (L- 3) | PluggedGas | — | — | — | — |
| Obrien J. M. -C- #342-391-00992 | Greta Operating Company LLC only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. -C- #542-391-00994 | Greta Operating Company LLC only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. -G- #742-391-00995 | Arco Oil & Gas Co. only | Refugio, TXGreta (Massive Catahoula) | PluggedOil | — | — | — | — |
| Obrien J. M. -G- #942-391-00997 | Arco Oil & Gas Co. only | Refugio, TXGreta (Massive Catahoula) | PluggedOil | — | — | — | — |
| Obrien J. M. -C- #5X42-391-00998 | Greta Operating Company LLC only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. -G- #442-391-01001 | Arco Oil & Gas Co. only | Refugio, TXGreta (L- 3) | PluggedGas | — | — | — | — |
| Obrien J. M. -G- #542-391-01002 | Chilton Energy only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. -G- #6D42-391-01003 | Chilton Energy only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. -H- #142-391-01005 | Chilton Energy only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. -H- #242-391-01006 | Chilton Energy only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. J. -a- #142-391-01007 | Greta Operating Company LLC only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. -B- #142-391-01008 | Arco Oil & Gas Co. only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Obrien J. M. -B- #242-391-01009 | Arco Oil & Gas Co. only | Refugio, TXGreta (4400) | PluggedOil | — | — | — | — |
| Oconnor M. V. Etal #1 T42-391-01011 | Freeman James C. only | Refugio, TXGreta (Massive Catahoula) | Not on scheduleOil | — | — | — | — |