Jan 29 : Oil prices rose more than 1.5 per cent in Asian trade, extending gains for a third day on Thursday, on increasing concerns the U.S. may carry out a military attack on key Middle Eastern producer Iran that could disrupt supply from the region. Brent crude futures rose 99 cents, or 1.5 per cent, to $69.39 a barrel by 0436 GMT. U.S. West Texas Intermediate crude climbed $1.06, or 1.7 per cent, to $64.27 a barrel. Both contracts have climbed about 5 per cent since Monday and are at their