Petro-Canada is a retail and wholesale marketing brand subsidiary of Suncor Energy. Until 1991, it was a federal Crown corporation. In August 2009, Petro-Canada merged with Suncor Energy, with Suncor shareholders receiving approximately 60 percent ownership of the combined company and Petro-Canada shareholders receiving approximately 40 percent. The company retained the Suncor Energy name for the merged corporation and its upstream operations. It continues to use the Petro-Canada name nationwide.
