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Oil, Chemical and Atomic Workers Union

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

The Oil, Chemical and Atomic Workers Union was an influential labor union in the United States that represented workers in the oil, chemical, and atomic industries. It played a key role in advocating for better wages, working conditions, and safety standards for its members until it merged with the Paper, Allied-Industrial, Chemical and Energy Workers International Union in 1999.