TORONTO -- Canada's main stock index closed slightly lower even though the key energy sector rose along with the price of oil.

The S&P/TSX composite lost 3.44 points to 15,091.58.

U.S. stock markets were closed for the Thanksgiving holiday.

The Canadian dollar traded at an average of 75.73 cents US compared with an average of 75.36 cents US on Wednesday.

The January crude contract was up $1.20 at US$54.63 per barrel and the December natural gas contract was down 7.2 cents at US$4.45 per mmBTU.

The December gold contract was up US$6.80 at US$1,228.00 an ounce and the December copper contract was up 2.8 cents at US$2.79 a pound.