Oil prices on Thursday fell from four-year highs reached the previous session, pressured by rising U.S. inventories and after sources said Russia and Saudi Arabia struck a private deal in September to raise crude output.
Brent crude oil futures were trading at $85.85 per barrel at 0104 GMT, down 44 cents, or 0.5 percent, from their last close.
Brent on Wednesday hit a four-year high of $86.74 a barrel.
U.S. West Texas Intermediate (WTI) crude futures were down 30 cents, or 0.4 percent, at $76.11 a barrel.
