Crude oil for June delivery fell $2.79 to $71.61 a barrel, and the Energy Select Sector SPDR (NYSE: XLE ) fell to $56.24, off $1.14. Nervous investors with lingering concerns over the European Union's $1 trillion bailout of its weakest members drove stocks sharply lower on Friday. Friday's euro selling was mostly blamed on a new report on Spain showing that core inflation for the country had turned negative, which could make it more difficult to work out its debt problems.