Oil heads for weekly gain of more than 7% after Saudi attacks

NEW YORK (Reuters) - Oil prices rose about 1% on Friday, with Brent set for its biggest weekly gain since January, lifted by rising Middle East tensions and supply concerns after an attack on Saudi Arabia's energy industry last weekend.Brent crude futures rose 45 cents, or 0.7%, to $64.85 a barrel by 11:32 a.m. EDT (1532 GMT). U.S. West Texas Intermediate (WTI) crude futures gained 67 cents, or 1.2%, to $58.80 a barrel.For the week, Brent was set to rise 7.7%, its biggest gain since January,..