CAIRO, Egypt - OPEC says demand for crude oil will slip in the industrialized nations next year if oil prices climb and are sustained above their current level.

The warning Wednesday came as the Organization of the Petroleum Exporting Countries, supplier of about 35 per cent of the world's crude, revised its 2010 global crude demand up to 85.07 million barrels per day - 75,000 barrels per day higher than its assessment last month.

OPEC said in its November report that if prices climb and are sustained at higher levels, it would result in a 1 per cent decline in demand in industrialized nations.

The U.S. benchmark crude futures contract was hovering near US$80 per barrel on Wednesday.

The 12-nation bloc is scheduled to meet Dec. 22 in Angola to discuss production levels.