The U.S. Energy Information Administration (EIA) released its crude oil inventories data on Wednesday. U.S. crude inventories increased by 3.96 million barrels to 457.9 million in the week to September 25.
Analysts had expected U.S. crude oil inventories to remain unchanged.
Gasoline inventories increased by 3.3 million barrels, according to the EIA.
Crude stocks at the Cushing, Oklahoma, declined by 1.068 million barrels.
U.S. crude oil imports climbed by 329,000 barrels per day.
Refineries in the U.S. were running at 89.8% of capacity, up from 90.9% the previous week.