Yemen’s Rebels Step Up Attacks on Aramco Oil Facilities

The attacks, which have helped push up oil prices, seek to strike at the core of the Saudi economy

DUBAI—Yemeni rebels are increasingly targeting Saudi Arabian oil facilities, threatening the kingdom’s economic engine and adding another layer of geopolitical tension that is helping push oil prices to their highest levels since 2014.

Yemen’s Houthi rebels say they have attacked Saudi Arabian Oil Co. installations using missiles and drones at least eight times since the beginning of March. The latest attack was Monday afternoon when Houthis said they fired missiles on a Saudi oil port near the Yemen border. Saudi forces said...