Dow Dives 700 Points As Brent Oil Prices Surge Above $100 A Barrel; Three Leaders To Watch Investor's Business DailyOil Markets Brace for Lasting Turmoil in the Gulf WSJFive reasons oil prices won't snap back from Iran war PoliticoLive: The Latest: Crude oil hits $100 a barrel as Iran vows to keep fighting after 6,000 US airstrikes The Seattle Times