Sept 25 (Reuters) - Canada's main stock index was hovering near four-week high on Tuesday, boosted by gains in energy companies as price of brent crude rose to a level last seen in November 2014.
* At 9:39 a.m. ET (13:39 GMT), the Toronto Stock Exchange's S&P/TSX composite index .GSPTSE was up 65.86 points, or 0.41 percent, at 16,273.18.
* Adding to the positive sentiment, Canadian Prime Minister Justin Trudeau took a cautious line over talks to update NAFTA, saying he saw a possibility that Canada could build on a bilateral deal that the United States and Mexico have already agreed. Eight of the index's 11 major sectors were higher, led by the energy group.
* The energy sector .SPTTEN climbed 0.8 percent as U.S. crude CLc1 prices were up 0.6 percent a barrel, while Brent crude LCOc1 added 1.0 percent. O/R
* Suncor Energy SU.TO , Canadian Natural Resources CNQ.TO and Encana ECA.TO rose between 0.5 percent and 1.7 percent, and were the top boosts to the energy sector.
* The materials sector .GSPTTMT , which includes precious and base metals miners and fertilizer companies, added 1.2 percent.
* Spot gold GCc1 rose 0.3 percent to $1,201.85 an ounce, while copper prices CMCU3 declined 0.6 percent to $6,313.5 a tonne. GOL/ MET/L
* Providing the biggest support to materials sector was a 4.6 percent gain in Barrick Gold ABX.TO , adding to Monday's rally.
* The financials sector .SPTTFS gained 0.3 percent. The industrials sector .GSPTTIN rose 0.4 percent.
* The largest percentage gainers on the TSX were Aurora Cannabis ACB.TO , which jumped 8.2 percent after it issued its fourth-quarter report, followed by Barrick Gold ABX.TO .
* Maxar Technologies Ltd MAXR.TO fell 2.1 percent, the most on the TSX. The second biggest decliner was AltaGas ALA.TO , down 1.6 percent.
* The most heavily traded shares by volume were Royal Nickel RNX.TO , Aurora Cannabis ACB.TO , and Wallbridge Mining WM.TO .
* On the TSX, 178 issues were higher, while 62 issues declined for a 2.87-to-1 ratio favoring gainers, with 18.81 million shares traded.
* The TSX posted one new 52-week highs and two new lows.
* Across all Canadian issues there were seven new 52-week highs and 18 new lows, with total volume of 40.20 million shares.