Oil prices tumble ahead of U.S. inventory data

By Barani Krishnan NEW YORK (Reuters) - Oil prices fell 1 percent on Wednesday, extending their tumble ahead of data likely to show U.S. crude stockpiles had risen last week after a one-week reprieve. On Tuesday, crude futures settled down 3 percent after the world's energy watchdog and OPEC both revised forecasts that signalled the global crude glut could persist much longer than expected. Analysts expect the U.S. Energy Information Administration to cite a build of 3.8 million barrels in domes