The fonds consists of minutes, financial and office files of the Energy and Chemical Workers Union Local 614 and its predecessors, the United Oil Workers Union Local 3, the Oil Workers International Union Local 614, and the Oil, Chemical and Atomic Workers International Union Local 16-614. The fonds also includes correspondence and agreements of Imperial Oil Ltd. relating to the initial unionization of workers at the Ioco Refinery, Ioco, B.C. (now Port Moody, B.C.), 1943-1946.