Oil prices extended gains on Thursday, with Brent holding above $100 a barrel as escalating Iran-US attacks on shipping heightened concerns over further disruptions to Middle East crude supplies.Brent crude futures rose 0.1% to $101.34 a barrel by 0107 GMT, while US West Texas Intermediate crude gained 0.5% to $96.55.Brent settled $3.29, or 3.4%, higher […]