A slide of almost 4% in the price of crude oil on rising supply and diminishing demand helped send Canada's main stock index tumbling more than 250 points. Toronto's resource-heavy S&P/TSX composite index fell 261.26 points to 11,526.13, also pressured by drops in mining stocks as the price of gold fell more than US$20 an ounce.
The November crude-oil contract on the New York Mercantile Exchange fell $2.35 to US$58.68 a barrel - the lowest level since July 2005 - amid easing supply concerns. Analysts said the next major technical support level for oil is around US$55. Analysts see little immediate prospect of a revival in oil prices, which are down dramatically from a record-high US$78.40 in mid-July. Since then, worries about Iran have receded, the Gulf of Mexico hurricane season has been a non-event and demand has slackened for oil and other commodities.