Oil slips as focus shifts from Iran tensions to U.S. crude build

NEW YORK (Reuters) - Oil prices retreated further on Thursday after sharp losses in the previous session, as the market shifted its focused towards rising U.S. crude stocks and away from fears of an imminent escalation of conflict between the United States and Iran.Broadly, prices were moving back towards where they stood before the Jan. 3 U.S. drone strike that killed a top Iranian general, prompting an Iranian rocket attack on Iraqi air bases hosting U.S. forces. These events had pushed crude..