* U.S. non-farm payrolls surprisingly weak
* Cold weather in Europe propels Brent above $91
* Several banks boost oil price forecasts through 2011
(Recasts, adding details throughout, changes dateline from previous LONDON.)
By Joshua Schneyer
NEW YORK, Dec 3 (Reuters) - Oil rose to a new 25-month high on Friday, gaining for a fourth day, as a weaker U.S. dollar spurred more commodities investment and a cold spell in Europe tightened fuel supplies.
U.S. crude futures <CLc1> for January rebounded from an earlier decline to rise $1.0 to $89.08 a barrel by 1:06 p.m. in New York, after rising as high as $89.18.
Prices rose as investors largely shrugged off economic data showing U.S. employment grew less than expected in November and the jobless rate hit a seven-month high. [
]ICE Brent crude futures <LCOc1> traded up $1.12 to $91.80, after setting a fresh two-year high of $91.85.
"Today's crude prices are up with support from higher heating oil on the back of cold weather both here in the U.S. and in Europe and the weakened dollar, which has also encouraged buying," said Andy Lebow of MF Global in New York.
Unseasonably cold weather in Europe and parts of the United States have prompted a surge in demand for heating oil and energy products, with forecasts calling for cold spells to continue.
The U.S. National Weather Service, in its eight to 14-day outlook issued on Thursday called for below-normal temperatures for much of the eastern half of the country, which includes the world's largest regional market for heating oil. Front-month NYMEX heating oil <HOc1> rose 1.7 percent.
The U.S. dollar <.DXY> weakened sharply against a basket of foreign currencies on Friday, shedding 1.2 percent of its value, as more confidence that Europe can overcome its debt crisis, and negative U.S. payrolls data, helped the euro gain on the greenback.
That can help boost demand for oil since it makes the dollar-priced commodity cheaper for holders of other currencies.
Non-farm U.S. payrolls rose a less-than-expected 39,000 in November, the Labor Department said on Friday, and the unemployment rate was bumped up in November to 9.8 percent.
"That was a very bad number," said Thorbjrn Bak Jensen with Global Risk Management in Denmark.
Economists had expected payrolls to increase 140,000 last month and the unemployment rate to be unchanged at 9.6 percent.
Oil traders bid up prices after at least four major banks boosted their longer-term outlooks for oil prices this week, with one of the most bullish among them, Goldman Sachs, calling for U.S. crude futures to rise to $100 a barrel next year, as global economies rebound faster than previously expected.
Deutsche Bank, JP Morgan and Societe Generale all tweaked their oil price outlooks to the upside this week. [
]But some factors still suggest that a correction to the downside could be forthcoming, including signs that China may tighten its monetary policy.
Chinese state news agency Xinhua reported on Friday that top Communist Party leaders have decided China will switch to a "prudent" monetary policy from a moderately loose stance, a move that could prompt interest rate increases and lending controls. (Additional reporting by Gene Ramos in New York and Ikuko Kurahone in London; Editing by Marguerita Choy)