Oil falls after large surprise build in U.S. crude stocks

Bill Ross | The Image Bank | Getty ImagesOil prices dipped in early trade on Thursday for the third straight session after data showed an unexpected, large build in U.S. crude stocks last week, triggering fears of an oversupply amid signs of weaker Chinese demand, too.Brent crude futures for August delivery fell 40 cents, or 0.6% to $72.20 a barrel by 0023 GMT, while U.S. West Texas Intermediate crude (WTI) eased 39 cents, or 0.6%, to $67.70 a barrel.Both benchmarks had settled down more than $1..