Oil down almost 10 percent in two days as hunt for bottom continues

By Barani Krishnan and Samantha Sunne NEW YORK (Reuters) - Global oil markets on Tuesday slumped for a fourth straight session as mounting worries about a supply glut pressured crude prices, which have fallen almost 10 percent this week to their lowest since spring 2009. Traders said the trend for crude seemed lower but that prices could bounce up whenever there is a break in market sentiment. One such moment occurred on Tuesday when weaker-than-expected U.S. economic data briefly pushed the dol