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.
[1][2][3] In their first season of play, the 1947 Seminole Oilers placed 5th in the Sooner State League standings with a record of 48–90.
Playing under managers John Taber and Hugh Willingham, the Oilers finished 49.0 games behind the 1st place Lawton Giants.
The Sooner State League, expanded to eight teams, with the addition of the Chickasha Chiefs and the Pauls Valley Raiders.
In the 1948 Sooner State League playoffs, the Seminole Oilers defeated the Lawton Giants 3 games to 2.
[1][6][3][7] Remaining as an affiliate of the Chicago White Sox, the 1949 Seminole Oilers finished last in the Sooner State League.
The 1950 Ironmen finished in 6th place with a 55–83 record, playing the season under managers Kelly Wingo, Lloyd Giger and Dennis Rackley.
Under managers Charles Hopkins and Al Evans, Seminole finished 39.0 games behind the 1st place Lawton Braves.
In the Finals, Seminole defeated the Ardmore Cardinals 4 games to 3 to win the 1956 Sooner State League Championship.
With a 46–79 record, the Oilers finished in 8th place in the league, 28 games behind the Paris Orioles playing under manager Lee Anthony.
[24] Seminole teams were noted to have played minor league home games at Oiler Park.