TORONTO (Bloomberg) - Canadian stocks snapped a three-day slump that pushed the main index into a bear market as financial shares and energy companies rose after oil gained and central banks agreed to pump $247 billion into the financial system.

Bank of Nova Scotia, climbed the most in a decade after the Bank of Canada, the Federal Reserve and other central banks agreed to provide extra US dollars to private lenders if needed. Financials shares extended their rebound along with US stocks, which climbed on prospects the government is formulating a broader plan to bolster financial markets.

EnCana Corp. had its best gain in four weeks, leading energy and raw-materials shares higher after Goldman Sachs Group Inc. said the rally in commodity producers is not over.

Canada's Standard & Poor's/TSX Composite Index added 1.6 percent to 12,064.57 in Toronto. The S&P/TSX rallied after falling on Wednesday into a bear market, down 21 percent from its June 18 peak, on concern that more than $500 billion of global bank losses would weaken economies and curb demand for commodities.

Scotiabank, the third-largest bank, climbed 8.2 percent to C$47.37 for its steepest gain since September 1998. Royal Bank of Canada, the country's biggest lender by assets, gained 7.3 percent to C$48. Manulife Financial Corp., Canada's largest insurance company, rose 4.7 percent to C$35.34. Toronto-Dominion Bank, the nation's second-biggest bank, rose 4.1 percent to C$59.25. An index of financial companies rose 5.3 percent, the most in two months.

EnCana added 4.1 percent to C$71.72, the most since August 20. Canada's biggest energy producer slid 29 percent from its June peak through Wednesday. Canadian Natural Resources Ltd. yesterday increased 3.4 percent to C$79.15.