Another week of strikes between Iran and the United States, and the price of just oil keeps rising.Brent crude surged on Friday, up 4.6 per cent to around $US88 ($126), following a report that the Trump administration is sending more refuelling planes to Israel, a possible signal that US military operations could expand in the coming days. Crude notched its biggest weekly rise since April, and refiner margins – the cost of turning crude into useful stuff like diesel and petrol are at record highs.Subscribe to gift this articleGift 5 articles to anyone you choose each month when you subscribe.Subscribe nowAlready a subscriber? Fetching latest articles