Oil down almost 10 percent in 2 days as hunt for bottom continues

By Barani Krishnan and Samantha Sunne NEW YORK (Reuters) - Global oil markets slumped for a fourth straight session on Tuesday, as mounting worries about a supply glut pressured crude prices, which are down almost 10 percent this week to hit their lowest since spring 2009. Traders said the trend for crude seemed lower, but 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 suppressed the d