CBC.ca | Suncor Energy makes $4.3B bid for Canadian Oil Sands Ltd. CBC.ca Suncor said the offer would give shareholders of Canadian Oil Sands a stake in Canada's largest integrated energy company, which includes the Petro-Canada chain of fuel stations as well as its own oil and gas production and refining operations. Suncor Launches Unsolicited Offer for Canadian Oil Sands Suncor makes bid worth $6.6B to take over Canadian Oil Sands Suncor launches hostile $4.3-billion bid for Canadian Oil Sands |