Oil prices fell on Wednesday after U.S. crude inventories rose last week by the most since 2016, while gasoline demand suffered its biggest weekly drop ever due to the coronavirus pandemic.

Crude inventories rose by 13.8 million barrels last week, the U.S. Energy Information Administration said. That was the biggest one-week rise since 2016, and analysts expect similar data in coming weeks, as refineries curb output further and gasoline demand continues to decline.

West Texas Intermediate (WTI) crude CLc1 fell 17 cents to settle at $20.31 a barrel, after hitting a low at $19.90.