Brent crude topped $90 a barrel after the U.S. attacked Iranian rocket launchers on Sunday, the first confirmed strike in about a month

The rise came a day after the United States said it had attacked Iranian rocket launchers on a small island in the Strait of Hormuz, marking its first strikes on Iran in a month.

Brent crude futures climbed $2.22, or 2.52%, to $90.32 a barrel by 2202 GMT while U.S. West Texas Intermediate crude was at $85.41 a barrel, up $2.01, or 2.41%.