Global oil supplies face a growing list of disruptions—after a threat by Yemen’s Houthi militants to blockade Saudi Arabia.

Global oil supplies face a growing list of disruptions—after a threat by Yemen’s Houthi militants to blockade Saudi Arabia. Link War Risk to Oil Supplies Grows With Red and Black Sea Disruptions Tankers loaded with Saudi oil do a U-turn after Houthi blockade threats, while Ukrainian attacks snarl pipeline operations.