It is unclear who is governing Iran, the fourth-largest oil producer in OPEC, after U.S.-Israel strikes killed Ayatollah Ali Khamenei.

The prospect of a blockade of the Strait of Hormuz, which one-fifth of the world's total oil supply, notably from Saudi Arabia and the United Arab Emirates, passes through, or…

Oil prices rose on fears of war. Now the U.S. and Israeli military strikes on Iran could disrupt oil exports and drive up gas prices.