Regina is Linked to Alberta Oil When Alberta oil was discovered in the 1950's a feeling that prosperity had returned to the Prairies could be felt. Regina was connected to the Alberta oil patch in 1951. The pipeline joined Regina to both Alberta and Eastern Canada. Its development lead to the opening of the International Pipe and Steel Company (IPSCO) Steel Mill in Regina. IPSCO is the largest industrial employer in the city and was the only integrated steel and pipe producer in Western Canada at its time. IPSCO began its operations in 1962 and presently employs directly and through its subsidiary companies over 2,000 people. The IPSCO Regina Steelworks has an annual capacity of 1 million tons of steel a year.
Imperial Oil, which had been with Regina since 1916 was closed in 1974 due to the opening of the pipeline, circa 1964.