Crude prices surged toward US$100 a barrel due to the weak dollar and concerns about a tight energy supply this winter.
Light sweet crude for January delivery jumped 3.39 dollars to 98.03 dollars per barrel, after earlier hitting 98.50 dollars on the New York Mercantile Exchange.
In London, Brent North Sea crude for January delivery surged 3.21 dollars to 95.49 dollars a barrel.