The biggest contributor to the TSX gain was Enbridge Inc adding 6.9 points to the index. The materials sector was the top sector contributor with a 15.9 point contribution to the upside.

Leading performers in the index were CES Energy Solutions Corp , up 8.5 percent, Yamana Gold Inc , up 5.6 percent, and Fortuna Silver Mines Inc , higher by 3.8 percent.

Lagging shares were Prometic Life Sciences Inc , down 6.1 percent, TransAlta Renewables Inc, down 5.8 percent, and Ivanhoe Mines Ltd, lower by 5.2 percent.

On the TSX 154 issues advanced and 90 declined as a 1.7-to-1 ratio favored advancers. There were 16 new highs and 2 new lows, with total volume of 164.9 million shares.

The most heavily traded shares by volume were Yamana Gold Inc , Aurora Cannabis Inc  and Bombardier Inc.

The TSX's energy group  fell 0.95 points, or 0.48 percent, while the financials sector climbed 0.27 points, or 0.09 percent.

West Texas Intermediate crude futures rose 0.5 percent, or $0.33, to $66.97 a barrel. Brent crude  fell 0.99 percent, or $0.76, to $75.98 [O/R]

The TSX is up 0.7 percent for the year.

(Reporting by Chuck Mikolajczak)