Saudi Arabia's east-west crude oil pipeline was struck between Sept. 10 and 11, triggering fires, and the kingdom shut the line as a precaution, international media reported.

The pipeline runs roughly 1,200 kilometers from the eastern oil fields to the Red Sea port of Yanbu. It is effectively the only large overland route for moving crude without passing through the Gulf.

Since traffic through the Strait of Hormuz was effectively halted, Saudi Arabia had been routing millions of barrels a day through the line. The shutdown narrows export options again.

Iraq confirmed that the attacks originated from its territory, the Washington Post reported. Drones are said to have been used, and the identity of those responsible is under investigation.

US President Donald Trump said Iran was probably behind the attack. He said he had spoken with the Saudi crown prince, while remaining cautious about the scale of any response toward the Red Sea.

International crude prices rose by a double-digit dollar figure per barrel over the past week. Analysts attribute the move to the simultaneous constraint on export routes.

Asian refiners have begun securing alternative supplies and adjusting inventory management. Korea, Taiwan and Japan, with heavy reliance on Middle Eastern crude, feel freight and insurance increases directly.

How long repairs take will depend on the extent of the damage. If pump stations and metering equipment were hit, even partial restart could take longer.