Calgary Herald | Suncor makes bid worth $6.6B to take over Canadian Oil Sands Calgary Herald Suncor Energy is making a bid to acquire Canadian Oil Sands Ltd., the largest partner in Syncrude. The Calgary-based company says it's offering Suncor shares worth about $4.3 billion and would take on about $2.3 billion of debt owed by Canadian Oil ... Suncor Energy makes $4.3B bid for Canadian Oil Sands Ltd. Suncor Launches Unsolicited Offer for Canadian Oil Sands Suncor launches hostile $4.3-billion bid for Canadian Oil Sands |