Trump and Iran Strike Defiant Tone as Oil Markets See Little Relief Bloomberg.comLive updates: Iran vows to keep fighting as crude oil hits $100 a barrel AP NewsOil settles up 9% as Iran vows to keep Strait of Hormuz closed The Detroit NewsMideast Shipping Crisis Widens With More Tankers Hit in Gulf Bloomberg.comStocks fall and global oil reclaims $100 as Iran's new supreme leader vows to keep Strait of Hormuz closed CNN