Oil ends down but off lows, then slides on API report

By Barani Krishnan NEW YORK (Reuters) - Oil prices settled lower on Tuesday, then tumbled again after hours following a trade group's report of a U.S. crude inventory build nine times larger than forecast. During regular trading hours, crude prices hit one-month lows before paring losses at settlement. Then the American Petroleum Institute (API) said crude stockpiles swelled 9.3 million barrels in the week to Oct. 28.