Singapore had a deficit of 443 kb/d of refinery supply of total oil products versus demand in 2018, coming from large fuel oil and relatively small naphtha deficits, partially offset by surpluses of gasoline and middle distillates. The significant deficit in fuel oil is due to the high level of international marine bunkering demand. Demand in Singapore is driven by fuel oil for marine bunkering. Singapore's status as a major international trade and transportation hub, as well as chemicals export centre, makes its demand profile unique, in that marine bunker fuels, aviation jet, and petrochemical feedstock uses together account for around 88% of overall oil demand. Total product demand in Singapore is forecast to decline slowly, at 0.4% per annum, to reach 1.40 million b/d in 2040.