TORONTO(Bloomberg) — Canadian stocks had their biggest two-day gain in more than a month, as energy and materials companies including EnCana and Teck Cominco rose to records on surging prices for crude oil and copper.The Standard & Poor's/TSX Composite Index gained 142.47, or one percent, to 14,001.99 in Toronto. The benchmark has risen two percent in two days, the most since a back-to-back 2.1 percent gain in the first week of May. It's still one percent below its June 4 record, after being dragged down last week by rising bond yields and concern that borrowing costs may increase.

"People are focusing on the positive," said Stephen Gauthier, a partner in Montreal-based investment firm Gauthier & Cie., which manages about $18 million. "The world economy is strong enough for commodity prices to stay high. The financial sector has been hit by higher interest rates, but still the market has been able to come back strongly, led by the commodity stocks."

Gains in the market today were limited as financial stocks including Toronto-Dominion Bank declined on lingering concern that global borrowing costs may increase.

Crude oil for July delivery rose 2.1 percent to a nine-month high of $67.65 a barrel in New York, on concern that US refineries are failing to keep up with gasoline demand, and after Iran said it isn't willing to suspend its nuclear program.

EnCana, Canada's biggest natural gas producer, added C$2.22 to a record C$69.28. Suncor Energy, the world's second-biggest oil-sands producer, climbed C$3.46 to C$96.26. Smaller rival Canadian Natural Resources Ltd. gained C$3.21 to a record C$73.89.

Shares of Cameco, the world's largest producer of uranium, gained C$1.64 to C$57.27. UBS AG today increased its forecast for the nuclear fuel and its share-price estimate for Cameco.

A measure of energy shares, which includes uranium companies, accounts for more than a quarter of the S&P/TSX's value. It rose 2.3 percent today.

A gauge of raw-materials stocks added 1.3 percent.

Teck Cominco, the world's second-biggest zinc producer, rose C$1.15 to a record C$49.

Copper futures rose 2.2 percent to $7,456 a metric ton in London, after industrial production unexpectedly accelerated in China, the world's largest user of the metal, and mining workers threatened to strike in Chile. Nickel climbed the most in two weeks and aluminium and zinc also gained.