Oil prices inch higher in early trading as fears of further supply disruptions intensified after US forces said it began striking Iranian military targets for the 11th straight night and Kuwait reported attacks by Iranian drones, according to Reuters.

Brent crude futures rise 0.55 per cent, or 50 cents, to $91.51 after markets opened, while US West Texas Intermediate crude climbs 0.36pc, or 30 cents, to $84.64 in low volume trading.