WWW.EMLIINDONESIA.COM - Canadian Prime Minister Stephen Harper approved Cnooc Ltd. (883)'s $15.1 billion takeover of Nexen Inc. (NXY) and Petroliam Nasional Bhd.'s C$5.2 billion ($5.2 billion) takeover of Progress Energy Resources Corp. (PRQ)The deal by Beijing-based Cnooc is the largest ever takeover by a Chinese company, according to data compiled by Bloomberg. It gives the state-owned company a stake in Canada's largest oil-sands project and the biggest position in the Buzzard oil field in the...