June 10 (Bloomberg) -- Canadian stocks gained for the first time this week, led by commodity producers, as oil climbed to a seven-month high and a decline in the U.S. dollar bolstered the appeal of crude as an alternative investment. ATS Automation Tooling Systems Inc. added 4.4 percent after beating fourth-quarter earnings estimates by 38 percent. Suncor Energy Inc., the world’s second-largest oil-sands producer, gained 2.3 percent as crude surpassed $71 a barrel. Goldcorp Inc., the world’s second-largest bullion producer, increased 1.4 percent as gold rose for a second day. The Standard & Poor’s/TSX Composite Index added 98.33, or 0.9 percent, to 10,646.19 at 9:43 a.m. in Toronto. The benchmark fell 0.2 percent this week before today after three-straight weekly gains and a 39 percent rally since a 5-year low on March 9. Canadian Oil Sands Trust, the lead owner of the world’s largest oil-sands producer, rose 2.5 percent to C$28.20 after saying it completed work on its Coker 8-3 unit that began on March 17. Yamana Gold Inc., the Toronto-based mining company, gained 1.9 percent to C$11.88 after saying it agreed to sell three non- operating mines to Aura Minerals Inc. for about $200 million in cash, deferred cash payments and stock.

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