Benzinga's Top Pre-Market Gainers

Petrohawk Energy Corp HK shares advanced 63.77% to $38.47 in the pre-market session. BHP Billiton Ltd BHP announced its plans to buy Petrohawk Energy for $12.1 billion in cash. Google Inc GOOG shares advanced 12.87% to $597.00 in the pre-market session. GOOG reported upbeat Q2 results. The Clorox Company CLX climbed 11.27% to $76.14 in the pre-market session. CLX confirmed it has received an unsolicited conditional proposal from Icahn Enterprises LP to buy the company for $76.50 per share. Southwestern Energy Company SWN jumped 4.79% to $45.76 in the pre-market session. SWN appointed Catherine A. Kehr to its board.