The S&P/TSX composite index dropped 177.74 points to 14,744.70 on top of a 116-point slide Thursday after the OPEC oil cartel opted to leave its daily output unchanged at 30 million barrels a day, rejecting intense lobbying by some of its 12 members to cut production to put a floor under prices.
American markets had been closed for U.S. Thanksgiving on Thursday. But on Friday, the January crude contract on the New York Mercantile Exchange plunged $7.54 from Wednesday's closing price to a five-year low of US$66.15 a barrel and sending the TSX energy sector down 2.25 per cent.
Oil prices now are down about 35 per cent from mid-summer highs because of a higher U.S. dollar, lower demand and most particularly, a glut of global supply.
And analysts say they wouldn't be surprised to see prices further depressed as Saudi Arabia, the biggest OPEC exporter and one of its lowest-cost producers, appears prepared for short-term pain in order to compete against U.S. producers in efforts to maintain market share.
"The Saudis have a trillion dollars of reserves, about five years worth of spending for them," observed Luciano Orengo, a portfolio manager at Manulife Asset Management, adding some U.S. producers are especially vulnerable due to high debt levels.
"What you want to do if you're a producer like the Saudis, a low-cost producer that has reserves, you want to maximize the value of that and don't lose market share to new production in the U.S."
Plunging energy prices also punished the Canadian dollar, which lost 0.84 of a cent to 87.41 cents US, on top of a 0.75 of a cent slide Thursday, even as Statistics Canada reported that third-quarter gross domestic product ran ahead at an annualized pace of 2.8 per cent. That was much higher than the 2.1 per cent rise that economists had expected.
U.S. indexes were little changed at the end of a shortened session, benefiting from lighter exposure to resource companies versus the TSX. The Dow Jones industrials gained 0.49 of a point to 17,828.24, the Nasdaq added 4.31 points to 4,791.63 while the S&P 500 index faded 5.27 points to 2,067.56.
The TSX also found pressure from another major pillar — the mining sector as metal prices also retreated.
The base metals sector dropped 5.1 per cent as March copper declined 11 cents to US$2.85 a pound. Copper hasn't broken below $3 since 2010. The decision by the Chinese central bank to lower interest rates got a positive reception a week ago. But since then, there have been concerns that the move isn't enough to keep Chinese growth above seven per cent.
Gold prices were heavily punished since lower oil prices will translate into lower inflation. The TSX gold sector fell about 6.35 per cent while February gold lost $22 to US$1,175.50 an ounce.
TSX gainers were led by the utilities and consumer staples sectors, both up 0.6 per cent.
The TSX was down 366 points or 2.43 per cent for the week after six straight weeks of gains, led by a 12 per cent slide in the energy sector. The Dow was flat.