Reuters | BHP boosts exploration spend as focus narrows to oil, copper Reuters SYDNEY BHP Billiton plans to lift exploration spending by 29 percent next year, allocating nearly all its $900 million budget to finding oil and copper, as big miners bet on a narrow pick of commodities to drive future growth. Miners fret about future ... BHP Billiton to spend $900m on copper and oil exploration BHP Billiton to Invest $900M in Oil, Copper Exploration in FY17, Up 18% YOY |