Brent oil up 6% in one week on fears of U.S. attack on Iran

LONDON (Reuters) - Brent oil rallied above $65 per barrel and was set to notch up a 6% gain this week on fears of a U.S. military attack on Iran that would disrupt flows from the Middle East, which provides more than a fifth of the world's oil output.Brent crude was up $1.02, or 1.6%, at $65.47 a barrel by 1038 GMT. The global benchmark jumped 4.3% on Thursday and was up around 6% for the week, in its first weekly gain in five weeks.U.S. West Texas Intermediate crude was up 58 cents, or 1%, at..