Tanker shares gave up some of their recent gains on Thursday after President Donald Trump suggested he is mediating in the price war between Saudi Arabia and Russia, with a goal of reducing production by 10m barrels per day.

Trump's morning tweet helped fuel losses of 23% for Teekay Tankers, 16% for Frontline and DHT Holdings and 14% for Euronav, Navios Maritime Acquisitions and Diamond S Shipping.