* The Toronto Stock Exchange's TSX falls 0.24 percent to 16,535.33
* Leading the index were Nexgen Energy Ltd NXE.TO , up 9.5 percent, Nuvista Energy Ltd NVA.TO , up 6 percent, and Canopy Growth Corp WEED.TO , higher by 4.3 percent.
* Lagging shares were Eldorado Gold Corp ELD.TO , down 5.6 percent, MAG Silver Corp MAG.TO , down 5.3 percent, and NovaGold Resources Inc NG.TO , 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 ABX.TO , Encana Corp ECA.TO and Aurora Cannabis Inc ACB.TO .
* The TSX's energy group .SPTTEN fell 0.59 points, or 0.5 percent, while the financials sector .SPTTFS climbed 1.16 points, or 0.4 percent.
* West Texas Intermediate crude futures CLc1 rose 0.46 percent, or $0.26, to $56.56 a barrel. Brent crude LCOc1 rose 0.9 percent, or $0.55, to $61.5 O/R
* The TSX is up 15.4 percent for the year.