Oil gained 1% on Thursday to snap a three-day decline as risk appetite returned to financial markets after the U.S. Federal Reserve kept benchmark interest rates on hold.
Brent crude futures were up 91 cents, or 1.08%, at $85.54 a barrel by 1250 GMT, while U.S. West Texas Intermediate crude futures gained 83 cents, or 1.03%, to $81.27 a barrel.
