With high-sulphur fuel oil (HSFO) trading at about half the price of low-sulphur compliant bunkers, owners who fitted scrubbers are gloating about their savings — but shortages of 3.5% fuel outside of the main supply hubs are already being reported.

HSFO is selling for a worldwide average of $377 per tonne, while very low-sulphur fuel oil (VLSFO) is available at $673 per tonne, according to Ship & Bunker data — a much higher price spread than predicted by most analysts.