The Opec+ group of oil producers has delayed a meeting to discuss further supply cuts in a sign of disagreement between member states.
The meeting, which was due to be held on 26 November, will now take place four days later, a delay that prompted a drop in oil prices.
Clarksons Securities warned earlier this week that deeper Opec+ cuts would affect tanker rates in the coming year, as a reduction in supplies creates more competition for cargoes.