Ocean Bunkering Services, a sister company of Ocean Tankers, has been usurped as Singapore’s top bunker supplier, official figures show.

PetroChina’s Singapore bunkering arm has moved up one notch to be the top bunker supplier in the world’s largest bunker market.

Singapore-based Sentek Marine & Trading Pte climbed one spot to second, according to a list released by the Maritime and Port Authority (MPA).