Singapores onshore stockpiles including naphtha, petrol and reformate dropped 593,000 barrels, or 5.6%, to 10.1 million in the week ended 17 December. The figure is the first decline in five weeks.
Light distillates inventories in Singapore, Asias biggest oil-trading and storage centre, fell to the lowest in four weeks, according to a unit of the Ministry of Trade and Industry.
Middle distillate supplies including gasoil, or diesel, and kerosene rose 94,000 barrels from the previous week to 12.5 million, International Enterprise says.
Residues, a category that includes fuel oil, low-sulphur waxy residue and excludes bitumen, increased 547,000 barrels to 22.5 million, the highest in three weeks.
The trade ministry surveys refiners, oil companies and storage terminals on a voluntary basis. The results may exclude offshore storage capacities.