The Toronto Stock Exchange’s TSX falls 0.24 percent to 16,535.33
Leading the index were Nexgen Energy Ltd , up 9.5 percent, Nuvista Energy Ltd , up 6 percent, and Canopy Growth Corp , higher by 4.3 percent.
Lagging shares were Eldorado Gold Corp , down 5.6 percent, MAG Silver Corp, down 5.3 percent, and NovaGold Resources Inc, lower by 5.1 percent.
On the TSX 97 issues rose and 136 fell as a 0.7-to-1 ratio favored decliners. There were 8 new highs and no new lows, with total volume of 184.3 million shares.
The most heavily traded shares by volume were Barrick Gold Corp , Encana Corp and Aurora Cannabis Inc.
The TSX’s energy group fell 0.59 points, or 0.5 percent, while the financials sector climbed 1.16 points, or 0.4 percent.
West Texas Intermediate crude futures rose 0.46 percent, or $0.26, to $56.56 a barrel. Brent crude rose 0.9 percent, or $0.55, to $61.5 [O/R]
The TSX is up 15.4 percent for the year.