Oil pumpjacks photographed in California, U.S.

Oil prices fell on Wednesday, after U.S. crude stocks rose more than expected in the most recent week, even as gasoline inventories hit a four-year low in the world's largest oil consumer.

Brent crude futures were down $2.41, or 2.8%, at $82.33 a barrel. U.S. West Texas Intermediate (WTI) crude futures tumbled $2.74, or 3.3%, to $81.17 a barrel.