British American Oil Company

The British American Oil Company Limited was a Canadian integrated petroleum company that operated between 1906 and 1969. British American was founded in Toronto in 1906 by Albert Leroy Ellsworth (1876–1950). By the 1950s, the Gulf Oil Corporation of Pittsburgh had become British American's controlling shareholder. In 1956 Gulf merged its Canadian subsidiary, the Canadian Gulf Oil Company, with British American using the latter's name. In 1969 British American amalgamed with its subsidiaries into a new company called Gulf Oil Canada Limited. After several name changes ending at Gulf Canada Resources Limited, the company was acquired in 2001 by Conoco, becoming Conoco Canada Resources Limited (now ConocoPhillips Resources Canada).