Oil prices jumped by more than 3 per cent on Friday, with Brent briefly topping $117 a barrel, as Yemen’s Houthi rebels launched another wave of attacks on Saudi Arabia, stoking concerns about further disruption to supplies from the Middle East. Brent, the benchmark for two thirds of the world's oil, leapt 3.14 per cent to settle at $116.72 a barrel. West Texas Intermediate, the gauge that tracks US crude, jumped 3.82 per cent to close at $103.27 a barrel.