so they choose a more long-term relationship," the physical supplier said. Bunker fuel sold on contract is expected to increase as the IMO framework 's sulphur cap deadline approaches on 1 January 2020 , and shipowners look to lock in reliable , compatible and compliant bunker fuel . By increasing supplies , owners may ensure that they remain compliant to the EU mandate and will not have to rely on the volatile spot market . So far , ExxonMobil and Shell have announced their main storage locations for low - sulphur bunker fuel , with ExxonMobil also ensuring that its fuels at different locations will be compatible with each other .
Bunker fuel sold on contract is expected to increase as the IMO framework 's sulphur cap deadline approaches on 1 January 2020 , and shipowners look to lock in reliable , compatible and compliant bunker fuel . By increasing supplies , owners may ensure that they remain compliant to the EU mandate and will not have to rely on the volatile spot market . So far , ExxonMobil and Shell have announced their main storage locations for low - sulphur bunker fuel , with ExxonMobil also ensuring that its fuels at different locations will be compatible with each other .