Light, sweet crude for August delivery rose as high as $138.95 a barrel shortly after the New York Mercantile Exchange opened before retreating some to trade up $4 at 138.55.

• 轻质低硫原油8月份交货的上升高达一百三十八点九五美元桶后不久，纽约商品交易所开幕前退了一些，以贸易美元，4日在138.；55。