Oil rises as Western powers strike Libya

LONDON (Reuters) - Oil prices rose by more than 1 percent on Monday as a United Nations mandated wave of airstrikes on Libya and proliferating unrest in the Middle East fanned concerns about oil supply from the region.

Brent crude for May was up $1.44 to $115.37 a barrel by 0950 GMT (5:50 a.m. ET), while U.S. crude for April