NEW YORK (Reuters) - U.S. stocks ended lower on Monday as tumbling oil prices dragged energy shares to a three-year low and factory data from China added to concerns about weakening growth in the world's second-largest economy.

The Dow Jones industrial average <.DJI> fell 91.46 points, or 0.52 percent, to 17,598.4, the S&P 500 <.SPX> lost 5.86 points, or 0.28 percent, to 2,097.98 and the Nasdaq Composite <.IXIC> dropped 12.90 points, or 0.25 percent, to 5,115.38.

(Reporting by Noel Randewich; Editing by Meredith Mazzilli)