Anglo-Australian mining giant BHP Billiton Group (BHP, BLT.L, BHP.AX, BBL, BHPBF), comprising of BHP Billiton Ltd. and BHP Billiton plc, reported Tuesday that profit for the year ended June 30, 2015 plunged 86 percent from last year, despite production growth, hurt by the volatile commodity market and the South32 demerger impact. Further, the company slashed capital and explorat