Brent Hit a Five-Month High. Saudi Strike Claims Were Unconfirmed.

Brent crude reached $111.05 a barrel on Tuesday, the highest since May, and was at $110.80, up $1.25 or 1.1%, as of 8:10 a.m. GMT, CNBC reported. West Texas Intermediate rose as high as $104.94, the highest since September, and was last quoted at $104.80. Traders added a risk premium after Yemen's Houthis said Monday that they struck Saudi energy, airport, and military sites, including an Aramco facility at Yanbu and the Shaybah oilfield.

Saudi authorities did not immediately confirm the claims, and Reuters could not independently verify them. Kpler said at least 18 vessels were reportedly attacked over two weeks. ING analysts said the premium could fade if cargoes keep moving. The report did not show a closed route, a measured loss of oil supply, or a U.S. gasoline-price change.

Has Tuesday's oil jump been shown to raise U.S. gasoline prices? No U.S. pump-price change was established. The reported market fact is a higher Tuesday crude price; the Saudi strike details remained unconfirmed.