The Toronto Stock Exchange's TSX falls 0.30 percent to 15,527.87 

Leading the index were Secure Energy Services Inc , up 28.0%, Shawcor Ltd , up 16.1%, and Methanex Corp , higher by 9.1%.

Lagging shares were First Quantum Minerals Ltd , down 4.6%, Canadian Tire Corporation Ltd, down 4.0%, and Shopify Inc, lower by 3.6%.

On the TSX 125 issues rose and 101 fell as a 1.2-to-1 ratio favored advancers. There was 1 new high and no new lows, with total volume of 299.5 million shares.

The most heavily traded shares by volume were Air Canada , Canadian Natural Resources Ltd  and Bombardier Inc.

The TSX's energy group  rose 1.15 points, or 1.4%, while the financials sector climbed 0.07 points, or 0.0%.

West Texas Intermediate crude futures rose 0.11%, or $0.04, to $37.33 a barrel. Brent crude  rose 0.33%, or $0.13, to $39.92 [O/R]

The TSX is off 9% for the year.