Stocks ended slightly lower on Wall Street, closing out the market's second losing week in a row, the AP reports. Health care and technology stocks did especially poorly on Friday. Giant drugmaker Merck fell 3% and Apple lost 2%, the biggest losses in the Dow Jones industrial average. The price of oil turned higher, helping lift energy stocks. US crude gained 4% to $48 a barrel in New York. The Dow Jones industrial average gave up 57 points, or 0.3%, to 17,675. The Standard & Poor's 500 index fell 6 points, or 0.3%, to 2,071. The Nasdaq composite dropped 44 points, or 0.9%, to 4,800. (More Dow Jones stories.)