Global oil prices continued gains Wednesday in Asian markets over supply concerns after the Organization of Petroleum Exporting Countries (OPEC) group reported a dip in crude production in November. The 12-nation OPEC, which covers 35% of global demand for crude, said that its production fell by 210,000 barrels per day in November. New York\'s main contract, West Texas Intermediate for delivery in January, gained 40 cents to US$ 86.19/bbl up 0.47% at 03.51 early morning, and Brent North Sea crude for January was quoted at US$ 108.60/bbl, up 55% or 59 cents.