BNN | Oil drops below US$50 on U.S. production growth BNN Oil prices tumbled on Friday, on track for the biggest weekly drop in a month on renewed concerns that increasing U.S. production and high inventories will thwart OPEC's attempts to reduce the global crude glut. U.S. crude futures fell below US$50 a ... OPEC cut doubts put oil on track for biggest weekly drop in a month Oil dives, US crude below $50 for first time in two weeks Oil market still seeking to rebalance as US output grows |