BHP to Acquire Petrohawk for $12.1 Billion

BHP to Acquire Petrohawk for $12.1 Billion

Carla Gottgens/Bloomberg

BHP Billiton Ltd. headquarters in Melbourne, Australia. BHP joins producers including Exxon Mobil Corp., the largest U.S. oil company, and Chevron Corp. in ramping up acquisitions in natural gas prospects previously considered too difficult and costly to exploit.