Oil prices fell more than 1% a barrel on Wednesday, on track to end three days of gains after data showed U.S. crude stockpiles rose by more than expected last week, and hawkish remarks from the Federal Reserve chair.

Crude oil inventories in the United States saw a build of 4.1 million barrels during the week ending February 7

Oil futures looked to post a loss Wednesday, their first in four sessions, after official U.S. data revealed a third straight weekly climb in U.S. crude supplies.