Oil dips after an unexpected U.S. crude inventory build

By Catherine Ngai NEW YORK (Reuters) - Oil futures dipped on Thursday after a surprise build in U.S. crude inventories reversed an advance in prices that had boosted the benchmarks to their highest levels since July last year. U.S. crude stocks unexpectedly rose for the second straight week, data from the U.S. Energy Information Administration showed, gaining 614,000 barrels last week versus analysts' forecasts of a decline of 2.1 million barrels. U.S. crude futures settled 29 cents, or 0.5 perc