U.S. stocks stumbled on Friday as energy shares sank along with oil prices on worries about weak demand, overshadowing fresh reassuring economic data.

The Dow Jones industrial average <.DJI> dropped 62.68 points, or 0.75 percent, to end unofficially at 8,268.64. The Standard & Poor's 500 Index <.SPX> fell 10.19 points, or 1.14 percent, to 882.88. The Nasdaq Composite Index <.IXIC> lost 9.07 points, or 0.54 percent, to 1,680.14.

(Reporting by Rodrigo Campos; Editing by Jan Paschal)

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