U.S. stock-index futures signaled a lower open on Friday, tracking sharp declines in global markets as U.S. crude crashed below $60 and investors awaited consumer sentiment data.
Stock futures didn't react to an economic report on Friday that had producer prices falling 0.2 percent in November versus expectations of a 0.1 percent drop.
West Texas Intermediate futures for January closed at $59.95 per barrel on Thursday, the first sub-$60 settle since July 2009, with prices remaining under pressure ahead of the U.S. stock market open. The dip below $60 opens the door to the $50-per-barrel level, according to analysts.
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