U.S. Stocks Open Higher, Supported By Oil, Earnings

U.S. stocks rose modestly at the open Thursday as oil prices surged on worries that wildfires raging in Alberta could hamstring crude output. The S&P 500 gained 2 points, or 0.1% to 2,053. The Dow industrials rose 29 points, or 0.2%, to 17,673. The Nasdaq Composite climbed 13 points, or 0.1%, to 4,740. Strong earnings from Tesla Motors Inc. and Alibaba Group Holdings Ltd. also helped boost shares.

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