* The Toronto Stock Exchange's S&P/TSX fell 20.18 points, or 0.13 percent, to 16,113.62.

* The biggest contributor to the TSX loss was Royal Bank of Canada, weighing by 20.84 index points. Energy was the top sector drag, weighing by 25.62 points. 

* Leading the index were New Gold Inc , up 5.5 percent, West Fraser Timber Co Ltd , up 5.3 percent, and Alamos Gold Inc , higher by 5.1 percent.

* Lagging shares were Aecon Group Inc , down 15.4 percent, Ivanhoe Mines Ltd, down 6.9 percent, and Canopy Growth Corp, lower by 6.2 percent.

* On the TSX 117 issues advanced and 127 declined as a 0.9-to-1 ratio favored decliners. There were 15 new highs and 1 new lows, with total volume of 198.7 million shares.

* The most heavily traded shares by volume were Canopy Growth Corp , Aecon Group Inc  and Aurora Cannabis Inc.

* West Texas Intermediate crude futures fell 1.66 percent, or $1.19, to $70.65 a barrel. Brent crude  fell 1.32 percent, or $1.05, to $78.75 [O/R]

* The TSX is off 0.6 percent for the year.

(Reporting by Lewis Krauskopf)