Wall Street Journal | Oil Prices Lower on US Drilling Data, Global Uncertainty Wall Street Journal NEW YORK—Oil prices tumbled Tuesday as traders worried about an uptick in U.S. drilling activity and the U.K.'s vote to exit the European Union continued to roil global markets. U.S. crude for August delivery recently fell $2.22, or 4.5%, to $46.77 a ... Oil price rally is over for 2016, says Vitol boss Oil Prices Lower Amid Global Uncertainty |