O. K.
Coal Mines
| Mine Index | Coal Company, Mine Name | Quadrangle | County |
|---|---|---|---|
| 3621 | Johnson Coal Company, O. K. Mine Egyptian Coal and Mining Company, O. K. Mine Marissa Coal Company, O. K. Mine Smith Coal Company, O. K. Mine O-Kay Coal Company, O. K. Mine Marissa Coal Company, Okay Mine O.K. Coal Company, O. K. Mine | Tilden | St. Clair |
| 4614 | R. M. Carter, Carter Mine O. K. Coal Company, O. K. Mine | Carbondale | Jackson |
| 91830530 | O. K. Coal Company, O. K. Mine | Danville SW Danville SE Danville NW | Vermilion |