Oil prices hit the lowest level of 2017 on Wednesday, leading to their biggest one-day percentage drop since February last year.
According to U.S. government data, domestic-crude supplies rose from 8.2 million to 528.4 million barrels, corresponding to the highest recorded level.
April West Texas Intermediate crude lost $2.86, settling for $50.28 a barrel on the New York Mercantile Exchange, which made up the lowest finish for a front-month contract since early December.
The sharp decrease in crude oil futures also put pressure on the Dow Jones Industrial Average and the S&P 500 index, with the energy sector posting the highest decline of the broad-market benchmark's total of 11 sectors.
