Brent crude climbed above $90 a barrel on Monday, its highest in more than a month, as intensifying US-Iran hostilities choked off oil shipments through the Strait of Hormuz.
The international benchmark rose 2.37 per cent to $90.19 at 2.41 GMT, its highest since 11 June, having jumped 15.9 per cent last week in its biggest weekly gain since April.