Stocks turned lower in at midmorning on Friday in volatile trading, weighed down by energy shares as crude prices fell.

The Dow Jones industrial average <.DJI> dropped 77.31 points, or 0.72 percent, to 10,656.52. The Standard & Poor's 500 Index <.SPX> fell 4.39 points, or 0.39 percent, to 1,125.17. The Nasdaq Composite Index <.IXIC> edged down 2.40 points, or 0.10 percent, to 2,453.27.

(Editing by Kenneth Barry)