The Toronto Stock Exchange's TSX falls 0.30 percent to 15,527.87
Leading the index were Secure Energy Services Inc
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.