Andrew Mackenzie, chief executive officer of BHP Billiton Ltd., speaks at an event hosted by the Asia Society in Melbourne, Australia, on Wednesday, Aug. 7, 2013. BHP, the worlds biggest mining company, signaled it will expand in the shale oil and gas industry in the U.S., forecasting global commodity demand will jump 75 percent over the next 15 years. Photographer: Ian Waldie/Bloomberg via Getty Images
Andrew Mackenzie, CEO, BHP Billiton
