US stocks open slightly higher on last day of 2014 By: CNBC.com News December 31, 2014 at 09:30 AM EST U.S. stocks opened mildly higher on the last day of 2014, unfazed by continued low oil prices and slightly higher-than-expected weekly jobless claims. Read More >> Related Stocks: Apple Edison International Entergy Corp Integrys Energy Group Pepco Holdings Sentinelone Inc Cl A Walgreen Company