The Seminole Oilers were a minor league baseball team based in Seminole, Oklahoma. Between 1947 and 1957, Seminole teams played exclusively as members of the Class D level Sooner State League from 1947 to 1951 and 1954 to 1957, winning league championships in 1948 and 1956. The Oilers and Seminole Ironmen hosted minor league home games at Oiler Park. The Seminole Oilers played as a minor league affiliate of the Chicago White Sox from 1948 to 1949 and the Kansas City A's from 1955 to 1957.