Oil markets swing as the U.S. strikes Iran for a 10th night, tankers burn off Oman, Houthis blockade Saudi Arabia and gas tops $4.

U.S. strikes Iran an eighth night as Jordan, Iraq attacks kill three troops. Trump warns Tehran as oil markets react.

'We hit Iran very hard again tonight,' U.S. President Donald Trump said on the ninth consecutive night of strikes ■ Iran's Revolutionary Guards said two oil tankers 'exploded'…