* TSX rises 65.22 points, or 0.52 percent, to 12,704.52 * Six of the 10 main index sectors decline * Suncor has biggest positive influence on market * Telecoms providers jump on news of Verizon delay By John Tilak TORONTO, Aug 15 (Reuters) - Canada's main stock index rebounded to hit a three-week high on Thursday as rising commodity prices boosted shares of energy and materials companies and offset uncertainty over how soon the U.S. Federal Reserve will scale back its stimulus measures. An advance in the telecommunications sector also provided support for the market after a report that U.S. giant Verizon Communications Inc might delay its entry to Canada. The news lifted the shares of Canada's three dominant wireless players: Rogers Communications Inc, Telus Corp and BCE Inc. The price of bullion surged more than 2 percent, spurring a jump in shares of gold miners. And increasing tensions in the Middle East drove the price of oil to a four-month high. The Toronto index, whose gains on Thursday contrasted with a sharp fall in U.S. stocks, has managed to outperform the S&P 500 in August to date, despite trailing its U.S. counterpart all year. "There's a section of the market that's jumping into the resource stocks with a belief that perhaps the worst is over," said Elvis Picardo, strategist and vice president of research at Global Securities in Vancouver. "I can't remember the last day when you had a daily divergence of this extent," Picardo said of the differing fortunes of the U.S. and Canadian indexes. "Perhaps the thesis that the TSX will outperform U.S. stocks in the second half of the year is off to a good start." The Toronto Stock Exchange's S&P/TSX composite index closed up 65.22 points, or 0.52 percent, at 12,704.52, its highest level since July 25. U.S. stock markets fell as investors interpreted positive U.S. economic data as a sign that the wind-down of the Fed's stimulus program is imminent. Figures showed that the number of Americans filing new claims for jobless benefits fell to near a six-year low last week and consumer prices rose broadly in July. "It's not a question of if but when," said John Ing, president of Maison Placements Canada. "There's no consensus other than the fact that it's going to happen." Six of the 10 main sectors on the index were in the red on Thursday. A 5.5 percent jump in shares of gold miners helped lift the materials group 3.8 percent. Goldcorp Inc shot up 6.2 percent to C$32.23, and Barrick Gold Corp added 6 percent to C$20.43. Energy producers climbed 1.2 percent, helped by advances in oil prices and in shares of Suncor Energy Inc. Suncor, whose shares rose 3.5 percent to C$34.97, benefited from a regulatory disclosure showing Berkshire Hathaway Inc had taken a new stake in Canada's biggest energy company. The stock had the biggest positive influence on the index. Telecoms stocks jumped 2.9 percent on the Verizon report. Telus gained 4.8 percent to C$32.21, Rogers was up 5 percent at C$42.45, and BCE climbed 1.7 percent to C$42.50. Financials, the index's most heavily weighted sector, dropped 0.4 percent. Toronto-Dominion Bank lost 0.6 percent to C$86.75, and Royal Bank of Canada fell 0.1 percent to C$63.86. The industrials group slid 0.7 percent, with Canadian National Railway Co down 0.5 percent at C$100.72. Canadian Pacific Railway Ltd slipped 1.3 percent to C$124.84. The government of Quebec added CP Rail to the list of companies it says should help pay cleanup costs from the oil tanker train disaster at the town of Lac Megantic in July that killed 47 people. CP said it will appeal the decision.