| O Connor Mary Ellen E #14_42-391-01863 | — | Refugio, TX | Plugged | — | — | — | — |
| Oconnor Mary Ellen #642-391-01864 | Dolphin Petroleum LP only | Refugio, TXMary Ellen Oconnor (FS-96) | PluggedOil | — | — | — | — |
| 8 L42-391-01866 | Amoco Production Company only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | PluggedGas | — | — | — | — |
| Oconnor Mary Ellen #15 T42-391-01868 | Citation Oil & Gas Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | PluggedOil | — | — | — | — |
| Oconnor Mary Ellen #16 U42-391-01869 | Dolphin Petroleum LP only | Refugio, TXMary Ellen Oconnor (FS-96) | Not on scheduleOil | — | — | — | — |
| Oconnor Mary Ellen #20 U42-391-01873 | Dolphin Petroleum LP only | Refugio, TXMary Ellen Oconnor (FS-96) | PluggedOil | — | — | — | — |
| Oconnor Mary Ellen -B- #642-391-01878 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FS-1) | PluggedGas | — | — | — | — |
| Oconnor L. W. Estate of #6 C42-391-01889 | Champlin Petroleum Co. only | Refugio, TXMary Ellen Oconnor (H- 12) | PluggedGas | — | — | — | — |
| O Connor L. W. Estate of #842-391-01890 | Champlin Petroleum Co. only | Refugio, TXMary Ellen Oconnor (FS-75) | PluggedGas | — | — | — | — |
| O Connor Mary Ellen -a- #1742-391-01899 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | Not on scheduleOil | — | — | — | — |
| O Connor Mary Ellen -a- #1142-391-01907 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | Not on scheduleOil | — | — | — | — |
| O Connor Mary Ellen -a- #1542-391-01909 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | Not on scheduleOil | — | — | — | — |
| O Connor Mary Ellen -a- #1642-391-01910 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | PluggedOil | — | — | — | — |
| O Connor Mary Ellen -a- #1842-391-01911 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | Not on scheduleOil | — | — | — | — |
| Oconnor Thomas James -a- #142-391-01917 | Exxon Corp. only | Refugio, TXMelon Creek (F-Q-5) | Not on scheduleGas | — | — | — | — |
| O Connor L. W. #1542-391-01928 | O Connor Energy Management LLC only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | Not on scheduleOil | — | — | — | — |
| O Connor L. W. #16D42-391-01929 | O Connor Energy Management LLC only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | Not on scheduleOil | — | — | — | — |
| O Connor L. W. #1742-391-01930 | O Connor Energy Management LLC only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | PluggedOil | — | — | — | — |
| O Connor L. W. #2142-391-01933 | O Connor Energy Management LLC only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | PluggedOil | — | — | — | — |
| O Connor Thomas James -B- #7 C42-391-01947 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FT-18 Sand) | PluggedOil | — | — | — | — |
| O Connor Thomas James -B- #842-391-01948 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | PluggedOil | — | — | — | — |
| O Connor Thomas James -B- #942-391-01949 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | PluggedOil | — | — | — | — |
| O Connor Thomas James -B- #1042-391-01950 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | Not on scheduleOil | — | — | — | — |
| O Connor Thomas James -B- #1142-391-01951 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | Not on scheduleOil | — | — | — | — |
| O Connor Thomas James -B- #1442-391-01953 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | PluggedOil | — | — | — | — |
| O Connor Thomas James -B- #1642-391-01955 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | Not on scheduleOil | — | — | — | — |
| O Connor Thomas James -B- #1742-391-01956 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | Not on scheduleOil | — | — | — | — |
| O Connor Thomas James -B- #18 L42-391-01957 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | PluggedOil | — | — | — | — |
| O Connor Thomas James -B- #1942-391-01958 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | PluggedOil | — | — | — | — |
| Oconnor Thomas James -C- #1 L42-391-01960 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | PluggedOil | — | — | — | — |
| Oconnor Thomas James -C- #542-391-01963 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FQ-40 Sand) | PluggedOil | — | — | — | — |
| Thomas James O Connor D #4 D42-391-01970 | — | Refugio, TX | Plugged | — | — | — | — |
| Thomas James O Connor D #d-842-391-01971 | — | Refugio, TX | Plugged | — | — | — | — |
| T.J. O Conner D #5__42-391-01974 | — | Refugio, TX | Plugged | — | — | — | — |
| El Oso Cattle Co. #942-391-01975 | Citation Oil & Gas Corp. only | Refugio, TXMary Ellen Oconnor (FS-96) | Not on scheduleOil | — | — | — | — |
| Oconnor Thomas James -D- Tr.ii #13 U42-391-01976 | Exxon Corp. only | Refugio, TXMary Ellen Oconnor (FS-96) | Not on scheduleOil | — | — | — | — |
| Obrien J. J. -D- #142-391-01979 | Starrett C. E. only | Refugio, TXRefugio Old | PluggedOil | — | — | — | — |
| Obrien J. J. -D- #242-391-01980 | Starrett C. E. only | Refugio, TXRefugio Old | PluggedOil | — | — | — | — |
| Obrien J. J. -D- #442-391-01981 | Starrett C. E. only | Refugio, TXRefugio Old (3400) | PluggedGas | — | — | — | — |
| Obrien J. J. -D- #542-391-01982 | Starrett C. E. only | Refugio, TXRefugio Old | PluggedOil | — | — | — | — |
| Obrien J. J. -D- #642-391-01983 | Starrett C. E. only | Refugio, TXRefugio Old | PluggedOil | — | — | — | — |
| Obrien J. J. -D- #842-391-01984 | Starrett C. E. only | Refugio, TXRefugio Old | PluggedOil | — | — | — | — |
| Obrien J. J. -D- #1042-391-01986 | Starrett C. E. only | Refugio, TXRefugio Old | PluggedOil | — | — | — | — |
| Obrien J. J. -D- #1142-391-01987 | Starrett C. E. only | Refugio, TXRefugio Old | PluggedOil | — | — | — | — |
| 442-391-01991 | J & C Drilling Company only | Refugio, TXRefugio Old | Not on scheduleOil | — | — | — | — |
| Hynes Jamie -a- #442-391-02002 | Hewit & Dougherty only | Refugio, TXRefugio-Fox (2800) | PluggedGas | — | — | — | — |
| Hynes Jamie -a- #8__42-391-02004 | — | Refugio, TX | Plugged | — | — | — | — |
| Lambert M. F. -C- #142-391-02006 | H & D Operating Company only | Refugio, TXRefugio-Fox (5800) | PluggedOil | — | — | — | — |
| 142-391-02017 | Hewit & Dougherty only | Refugio, TXRefugio North (3550) | Not on scheduleGas | — | — | — | — |
| Oconnor Thomas -C- #5642-391-02023 | Quintana Pet. Corp. only | Refugio, TXTom Oconnor (4400) | PluggedOil | — | — | — | — |