OW Bunker A/S is a Denmark-based company which operates as a marine fuel supplier. As a physical distributor, it covers most of the marine fuel value chain from sourcing fuel oil from refineries, to storage and blending through to sales and finally physical distribution by refueling vessels (barges) to ships in port and at sea. As a reseller, it manages the bunker purchasing process on behalf of the customer choosing the most competitive offer from a physical distributor, and taking responsibility for delivery and fuel quality. The company engages in harbor bunkering, bunkering on the roads, and high seas bunkering side by side and stern line. It also offers risk management services; swaps and physical hedging products; and hedging instruments.