Madison County has 12 wells in the MBOGC well file — 0 of them producing today (0 oil, 0 gas), 0 permitted, 0 spudded but not yet completed, and 11 plugged and abandoned. The most active operator by well count is Helis, Estate Of William G., A Partnership. Figures come from the 2026-09-29 MBOGC bulk file; production runs through 2026-08.
| Operator | Wells |
|---|---|
| Helis, Estate Of William G., A Partnership | 2 |
| Madison Oil Co | 2 |
| Ruby Oil Company | 1 |
| Poynter, Sam | 1 |
| Cooper, W.o. | 1 |
| Tenneco Oil Company | 1 |
| O'keefe Drilling Company | 1 |
| Encana Oil & Gas (Usa) INC. | 1 |
| North American Resources Company | 1 |
| Texaco Oils INC., A Delaware Corp. | 1 |