At 11:55 a.m. ET, December NYMEX West Texas Intermediate was up 50 cents at $87 a barrel. January WTI also gained 50 cents, reaching $85.90 a barrel.

London-traded ICE January Brent rose $1.10 to $93.85 a barrel, while February Brent added $1 to $91.70. Refined-product contracts also advanced: December RBOB gained 1.6 cents to $2.6235 a gallon and January RBOB rose 1.7 cents to $2.591. December ULSD was up 1.1 cents at $4.222 a gallon; January ULSD gained 1.55 cents to $4.131.