Oil prices were near flat on Wednesday, after earlier hitting a 10-month high, as a surprise build in US crude inventories offset expectations of tight crude supply for the rest of the year. International benchmark Brent futures dropped 7 cents to $91.99 a barrel by 12:48 p.m. EDT (1648 GMT). Its session high of $92.84 a barrel was the highest since November. US West Texas Intermediate crud