Oct 31 (Reuters) - Canada's main stock index opened higher on Wednesday as energy shares were buoyed by crude oil prices, which rose ahead of U.S. sanctions on Iran.
* GDP data showed Canada's economy grew for the seventh month in a row in August.
* At 9:30 a.m. ET (13:30 GMT), the Toronto Stock Exchange's S&P/TSX composite index was up 105.12 points, or 0.71 percent, at 14,999.62. (Reporting by Amy Caren Daniel in Bengaluru; Editing by James Emmanuel)