US Secretary of State Mike Pompeo on Thursday blamed Iran for attacks this month on oil tankers in the Gulf, saying it was an effort by Tehran to raise the global price of oil.
Oil prices were testing fresh lows on Thursday, with a report that 100 million barrels of crude and heavy oil products are being held in ships at sea. West Texas Intermediate oil, the main North American contract, fell below $42 US a barrel, amid predictions that it would fall to the $20-30 level next year.