US crude oil inventories rose by 8.5 million barrels to 428.8 million in the week ended February 6, the largest increase in a year and far above expectations for a 0.8 million barrel build. Stocks at the Cushing, Oklahoma delivery hub also increased by 1.1 million barrels. Gasoline inventories rose by 1.2 million barrels to 259.1 million, compared with expectations for a 0.4 million barrel draw. Distillate stockpiles, which include diesel and heating oil, fell by 2.7 million barrels to 124.7 million, a larger decline than forecasts for a 1.3 million barrel drop.