BHP Billiton (BHP) gets the final stamp of approval on its $12B takeover bid for shale gas...

|About: BHP Billiton Limited (BHP)|By:, SA News Editor

BHP Billiton (BHP) gets the final stamp of approval on its $12B takeover bid for shale gas company Petrohawk Energy (HK). BHP +1.6%, HK +0.2% AH.