Brent crude (LCOc1) for August had slipped 42 cents to $63.84 as of 0856 GMT, while U.S. crude for July (CLc1) was down 44 cents at $60.01. “Oil markets are not pricing much in terms of Greek risk but most of the European oil demand growth this year is coming from the southern countries,” said Olivier Jakob of Petromatrix in Zug, Switzerland.