* U.S. crude stocks rise less than expected
* Dollar weakens, U.S. equities rise
* China rate hike impact on oil market limited - analyst
(Recasts with U.S. inventory report, updates prices)
By Alex Lawler
LONDON, Oct 20 (Reuters) - Oil jumped above $81 a barrel on Wednesday, supported by a weaker dollar and a government report showing crude inventories rose less than expected and inventories of some fuels fell in the world's largest consumer.
Crude oil stocks rose by 670,0000 barrels, the U.S. government's Energy Information Administration said, less than analysts forecast. [
] Stocks of distillates fell more than expected, while gasoline stocks unexpectedly rose."The report looks moderately bullish at first sight. I think if the market is bullish for other reasons, macro reasons, this could add fuel to the fire," said Antoine Halff of Newedge Group in New York.
U.S. crude for November <CLc1>, which expires later on Wednesday, jumped $1.77 to $81.26 a barrel by 1504 GMT. Brent crude <LCOc1> rose $1.87 to $82.97.
Oil was up earlier in the session because of the weaker dollar and as investors reassessed China's interest rate increase announced on Tuesday, taking the view that it would do little to curb demand in the world's second-largest consumer.
"This will not derail the Chinese economy, so the reaction was a bit overdone," said Carsten Fritsch, commodities analyst at Commerzbank in Frankfurt. "Commodity prices and also equity markets have rebounded today."
Crude in New York on Tuesday fell more than 4 percent, the biggest one-day percentage decline since February, after China surprised markets with its first interest rate increase in nearly three years.
Other commodities such as gold and copper were up, while U.S. equities gained. The Reuters-Jefferies CRB index <.CRB> was up 1.6 percent after falling almost 2 percent on Tuesday.
WEAK DOLLAR
Oil gained support from a weak dollar, which dipped against a basket of currencies. [
] A falling dollar makes oil and other dollar-denominated commodities cheaper for holders of other currencies.U.S. crude reached a five-month high above $84 on Oct. 7 as expectations the Federal Reserve would this year embark on a second round of expansionary monetary measures to boost growth weighed on the dollar.
Several Federal Reserve officials indicated on Tuesday that the central bank will soon offer further monetary stimulus, with one saying $100 billion a month in bond buying may be appropriate. [
].China has been the main driver of oil demand growth so far this year, although it still uses about half as much oil as the United States.
The EIA report released at 1430 GMT followed that of industry group the American Petroleum Institute (API), which said on Tuesday crude inventories rose by 2.3 million barrels last week. (Additional reporting by Alejandro Barbajosa in Singapore and Reuters energy desk in New York; editing by William Hardy)