April 16 (Reuters) - Canada's main stock index edged higher at open on Tuesday after energy stocks got a lift from modestly higher oil prices and as global stocks rose towards new six-month highs.
* At 9:30 a.m. ET (1330 GMT), the Toronto Stock Exchange's S&P/TSX composite index .GSPTSE was up 22.24 points, or 0.13 percent, at 16,537.7.