Oil prices rose on Wednesday after the Houthis attacked Saudi Aramco’s headquarters and Iran said it was deploying new tactics to target ships and keep oil prices high.

Brent crude futures settled up 37 cents, or 0.35%, at $106.06 a barrel. US West Texas Intermediate crude gained 95 cents, or 1.01%, to $95.09, a three-week high.

Attacks on ships transiting the Strait of Hormuz and strikes between Saudi Arabia and the Iran-allied Houthis are driving up oil prices, said Phil Flynn, senior analyst with the Price Futures Group.

“We’re seeing a lot of fear trade today,” Flynn added.

Iranian officials declined to provide details of the new strategy to target ships, but one said Iran started using different offensive tactics about 10 days ago.

Gulf oil ​flows excluding Iran surged in September to more than 81% of prewar levels, data showed, led by ‌a recovery in Saudi exports. Iranian exports fell to zero owing to a US blockade.

“More crude reaching international markets does not necessarily mean more oil is being produced,” Saxo Bank analyst Ole Hansen said in a note. “Some of the recovery reflects a redistribution of available barrels, including volumes that would otherwise have supplied regional refineries.”

Attacks on Multiple Fronts

The Houthis attacked an administrative building belonging to state-owned oil company Saudi Aramco in the city of Dhahran, causing a limited fire, Saudi Arabia’s energy ministry said.

The group has fired ballistic missiles and drones at Saudi Arabia over the past week in what it says is retaliation for the kingdom’s support of Yemeni government forces. Riyadh’s international airport has been hit four times, with a strike on Saturday killing 13 people.

Meanwhile, a container ship sank in waters south of the Strait of Hormuz after hitting a naval mine and catching fire, Iran’s Revolutionary Guards Navy said in a statement shared by state media on Wednesday. This was a day after the United Kingdom Maritime Trade Operations said a container ship and a tanker were hit by unknown projectiles in the strait.

“The expectation that increased Russian diesel exports will ease market tightness is likely to limit sharp price movement in either direction,” said Hiroyuki Kikukawa, chief strategist at Nissan Securities Investment.

US President Donald Trump announced on Friday that Russia had agreed to supply ​diesel to global markets and his administration temporarily lifted US sanctions on Russian diesel that were designed to deprive Moscow of revenue for its ‌war on Ukraine.

Russia’s crude oil production increased by 65,000 barrels per day in September to 8.43 million bpd but remained down 870,000 bpd year over year, the International Energy Agency said on Wednesday.

The IEA also said crude oil exports from Middle East Gulf producers rose by 4.4 million bpd in September to around 75% of prewar levels.

In the US, crude oil inventories fell by 11.1 million barrels in the week ended October 9, market sources said on Wednesday, citing data from the American Petroleum Institute. [API/S]

Weekly inventory data from the US Energy Information Administration will be released on Thursday, a day later than usual due to a federal holiday on Monday. [EIA/S]

(Reporting by Nicole Jao in New York, Stephanie Kelly in London, Yuka Obayashi in Tokyo and Emily Chow in Singapore; Editing by Will Dunham, Rod Nickel and Chris Reese)