Oil is a fuel that ships carry all around the world. Its price is quoted per barrel. On Thursday, Brent crude, a main world price, rose to about $110 a barrel. It had ended Wednesday at $108.82.
The price rose after attacks in Saudi Arabia, the world's big oil seller. The Houthis, a group in Yemen, hit targets in the kingdom on Wednesday. At a civilian airport in Dammam, one person was killed and eight were wounded. A drone attack near Shaybah, a Saudi oilfield, killed two people. Saudi officials said work at the oilfield was not affected. Earlier this month, the country's East-West pipeline, which carries oil to Red Sea ports, was reportedly halted after a Houthi strike hit a pumping station.
The attacks led the United States to tell some diplomats and their families to leave Saudi Arabia. Ships are under attack too. Kpler, a firm that tracks ships, counted at least 18 attacks on shipping in two weeks.