Oil prices edged lower in volatile trade on Friday amid continued uncertainty about the impact of the Brexit referendum on crude demand. Brent crude, the global oil benchmark, fell 0.6% to $49.41 a barrel on London’s ICE Futures exchange. On the New York Mercantile Exchange, West Texas Intermediate futures were trading down 0.6% at $48.05 a barrel. Analysts at Barclays said that uncertainty in financial markets created by the U.K.’s vote to leave the European Union will be a drag for oil demand, which has already been weakening this year. “The U.K. Leave vote has added another nail to the coffin for global oil demand in 2016,” the bank said in a report on Friday. “The path of oil prices is likely to track the political uncertainty in the months ahead.” Barclays has revised […]