US blames Iranian regime for tanker attacks in Gulf of Oman, oil prices rise

Two oil tankers were attacked on Thursday and left adrift in the Gulf of Oman, driving up oil prices and stoking fears of a new confrontation between Iran and the United States, which blamed Tehran for the incident.

"It is the assessment of the United States government that the Islamic Republic of Iran is responsible for the attacks that occurred in the Gulf of Oman today," U.S. Secretary of State Mike Pompeo told reporters without providing explicit evidence to back up the US stance.

"This assessment is based on intelligence, the weapons used, the level of expertise needed to execute the operation, recent similar Iranian attacks on shipping, and the fact that no proxy group operating in the area has the resources and proficiency to act with such a high degree of sophistication," Pompeo said.

Crude oil prices spiked more than 4% after the attacks near the entrance to the Strait of Hormuz, a crucial shipping artery for Saudi Arabia and other Gulf energy producers, stoked fears such disruptions could impact oil flows from the Middle East. Prices later settled about 2% higher.

Washington accused Tehran of being behind a similar attack on May 12 on four tankers in the same area.

Tensions between Iran and the United States, along with its allies including Saudi Arabia, have risen since US President Donald Trump pulled out of a deal last year between Iran and global powers that aimed to curb Tehran's nuclear ambitions.