Stocks open mostly lower as energy shares sell off

U.S. stocks opened slightly lower on Friday, as selling in energy shares weighed on the main indexes. The main benchmarks looked set to finish the week with modest gains, however. The Dow Jones Industrial Average opened 26 points, or 0.1%, lower to 24,782. The S&P 500 index fell 3 points, or 0.1% to 2,724 at the open. Meanwhile the Nasdaq Composite inched 6 points, or 0.1% higher to 7,430. Among the worst performers on the S&P 500, Gap Inc. shares tumbled 10% as the retailer reported disappointing earnings.