Petro-Canada ()'s a Canadian oil and gas firm. Its headquarters are in the Petro-Canada Centre in Calgary, Alberta. Petro-Canada announced on March 24, 2009, its intention to merge with Suncor, pending shareholder and regulatory approvals. History Petro-Canada was founded as a Crown Corporation in 1975 by an act of Parliament. Most of the original Petro-Canada stations were British Petroleum Canada (BP Canada) dealers, and BP disappeared from the retail scene in Canada soon after. Later, Petro-… (More on Petro-canada)