The bunker price is charged separately to customers. So low or high bunkers doesn't affect it that much. However, if a competitor is much more efficient with it

The bunker price is charged separately to customers. So low or high bunkers doesn't affect it that much. However, if a competitor is much more efficient with its bunkers you'd have a problem. At the moment, oil is cheap and there's no advantage of having efficient vessels. Hanjin doesn't even have efficient vessels. Their vessels aren't that big anymore, so they have a cost disadvantage vs the bigger companies.