Companies in this story: (TSX:GSPTSE, TSX:CADUSD=X) TORONTO — Canada’s main stock index headed higher in late-morning trading, helped by the energy sector as the price of oil gained ground.The S&P/TSX composite index was up 64.76 points at 16,463.99.In New York, the Dow Jones industrial average was up 177.99 points at 26,296.01. The S&P 500 index was up 21.18 points at 2,927.45, while the Nasdaq composite was up 67.81 points at 7,941.97.The Canadian dollar traded for 75.35 cents US compared with an average of 74.95 cents US on Tuesday.The October crude contract was up US$2.03 at US$55.97 per barrel and the October natural gas contract was up 3.5 cents at US$2.393 per mmBTU.The December gold contract was down US$1.50 at US$1,554.40 an ounce and the December copper contract was up 5.75 cents at US$2.5855 a pound. The Canadian Press read more