Oil prices rose by over $2 on Wednesday on signs of tighter supply, a weaker dollar and optimism over a Chinese demand recovery.
But the likelihood that OPEC+ will leave output unchanged at its upcoming meeting limited the gains.
Brent crude futures rose $2.22, or 2.67% to $85.25 per barrel by 1340 GMT. The more active February Brent crude contract rose by 3.35% to $87.07.
U.S. West Texas Intermediate (WTI) crude futures climbed $2.68, or 3.43%, to $80.88.
Support followed expectations of tighter crude supply.
U.S. crude oil stocks dropped by 7.9 million barrels in the week ended Nov. 25, according to market sources citing American Petroleum Institute figures on Tuesday.