The team played in the Pennsylvania State Association from 1940 to 1942, and later moved to the Middle Atlantic League after World War II ended.
The team began in 1940 when the Pittsburgh Pirates relocated their affiliate, the McKeesport Little Braves, to Oil City.
That year, the team's name was changed to the Oil City Refiners.
The team's name was changed one last time to the Oil City A's, when they merged with the Youngstown A's, in 1951.
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