The broader Standard & Poor 's 500 Index < .SPX > added 12.64 points , or 1.28 percent , to 997.48 .
The broader Standard & Poor 's 500 Index < .SPX > added 12.64 points , or 1.28 percent , to 997.48 .
The Standard & Poor 's Oil and Gas Exploration Index < .GSPOILP > was up 3.6 percent .