Oil prices steady as investors cautious over Iran-Oman talks

Yemen's Iran-aligned Houthis said on Wednesday they had launched a missile attack on a Saudi oil tanker off the coast of the kingdom's Red Sea port city of Yanbu and another missile attack on a Saudi oil tanker in the nearby Gulf of Aden. There was no confirmation from Saudi Arabia on either incident.

"Houthi attacks so far have not significantly disrupted oil and gas supply but this might change if attacks escalate further," said Roberto Cominotto, equity research analyst at Julius Baer.

Meanwhile, Saudi Arabia has slightly lowered the official selling price for its flagship Arab Light crude oil to Asia in September, a pricing document reviewed by Reuters showed.

And elsewhere, a major oil refinery in Russia's Yaroslavl region is on fire after a big Ukrainian drone attack and emergency services are working to put out the blaze, Mikhail Evrayev, the regional governor, said on Thursday.