Reuters | US stocks scale new peaks on retailer results; oil falls Reuters The S&P energy sector was last down nearly 2 percent, while Europe's STOXX 600 oil and gas index closed down 1.2 percent .SXEP. U.S. crude prices plummeted as much as 5.7 percent to $48.45 a barrel, their lowest level in a week after OPEC agreed to ... How OPEC can really give oil prices a quick boost Crude Oil Falls Below $50 but Selloff Fails to Dent Rally in Stocks |