(Reuters) - Canada's main stock index opened lower on Friday, pressured by a slip in oil prices due to higher output by top exporter Saudi Arabia and rising Sino-U.S. trade worries.
* At 9:30 a.m. ET (13:30 GMT), the Toronto Stock Exchange's S&P/TSX composite index .GSPTSE was down 32.34 points, or 0.2 percent, at 16,234.27.