Oil prices eased on Friday, heading for a third straight monthly decline, as a stronger dollar capped commodities gains while rising supply from major producers globally offset the impact of Western sanctions on Russian exports. Brent crude futures slipped 33 cents, or 0.51%, to $64.67 a barrel by 0027 GMT, while U.S. West Texas Intermediate crude was at $60.22 a barrel, down 35 cents, or 0.58%