Demand for sophisticated bunkering contracts, especially from cruise ships is on the rise and perhaps that is what is behind the move of whoever the ship's new owners might be. They may be able to use the ship to import bunkers from nearby US sources and transfer it to ships in Vancouver. They could also bunker ships in open roadstead anchorages.
Tug Cates 6, barge PB32 bunkering Diamond Princess in Vancouver.
(A second tug is also used to move the barge.)
The Port of Prince Rupert (odd as it may seem, an important competitor with Halifax for Asian traffic) has no ship bunkering service, one of the few ports of its size without it. A proposal has been made to service ships by barge, carrying rail cars, piped together. This seems an odd way of delivering fuel, but seems to have the financial backing to carry it out.
While the ship's crew has renamed the ship and its lifeboat and even its paint skiff, no one has lowered the Maltese flag yet. Perhaps just an oversight?