* Key TSX index rises 130.61 points to close at 8,011.02
* Rally in gold-mining shares headlines latest gain
* Lower oil prices hit energy shares, limiting TSX gain (Adds details, comments and official numbers)
By Frank Pingue
TORONTO, March 11 (Reuters) - Toronto's main stock index closed higher for a second straight session on Wednesday as rising bullion prices helped lift gold-mining issues, which more than offset a weaker energy sector.
The materials sector, which makes up about 20 percent of the index and is home to the shares of gold-mining companies, rallied 5 percent to lead all other sectors and allowed the TSX to tack on to the 300-point gain it recorded on Tuesday.
The surge in shares of gold-mining stocks came as the price of gold bounced back above $900 an ounce, due partly to safe-haven buying as economic fears lingered.
"It really is an encouraging sign to see the markets trade higher for the second straight day because that hasn't happened too often in recent weeks or even months," said Elvis Picardo, analyst and strategist at Global Securities in Vancouver.
The rally in Toronto's key stock index would have been even meatier had it not been for the 0.41 percent skid in the energy sector, which fell on further signs of weak global demand for oil and rising oil inventories in the United States.
The S&P/TSX composite index .GSPTSE closed up 130.61 points, or 1.66 percent, at 8,011.02. The rise followed Tuesday's 4 percent gain and marks TSX's first back-to-back gaining sessions in two weeks.
$1=$1.28 Canadian Editing by Peter Galloway