U.S. stocks opened higher on Friday, as supply disruptions in Canada and Nigeria have been keeping oil prices stable. West Texas Intermediate, the U.S. benchmark for oil, at one point crossed $48 a barrel on Friday. Plus, Foot Locker FL shares fell after reporting mixed first quarter results. Earnings per share of $1.39 matched estimates, while revenue of $1.99 billion, just missed the consensus forecast. Same store sales rose 2.9 percent during the quarter, falling short estimates of a 4.5 percent increase. Finally, Walmart's price target was raised to $69 from $66 by the analysts at RBC Capital. The firm has an underperform rating on the stock, which currently trades at $69.20. Walmart reported better than expected first quarter results on Thursday. TheStreet's Scott Gamm reports from Wall Street.