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By Richard Valdmanis
NEW YORK, Feb 8 (Reuters) - Oil prices vaulted more than $3 toward $92 a barrel on Friday amid supply snags in Nigeria and the North Sea and as traders anticipated a cold spell in the huge U.S. Northeast heating oil market.
Dealers said an escalating legal battle between Exxon Mobil and Venezuela over the country's recent nationalization of a multibillion-dollar oil project was also encouraging the rally by raising the possibility Venezuela could suspend exports.
U.S. crude <CLc1> jumped $3.64 to $91.75 a barrel by 1740 GMT, reversing most of the week's losses that had been triggered by concern an economic slowdown would dent demand for fuel. London Brent <LCOc1> gained $3.55 to $92.06.
"A lot of people with short positions are running away from them, respecting the potential of this market to run back up," said Tim Evans, energy analyst at Citigroup Futures Research in New York.
Royal Dutch Shell <RDSa.L> said 130,000 barrels of daily crude oil production from Nigeria was halted because of pipeline leaks, adding to supply disruptions from the OPEC country caused by militant attacks.
Dealers said they were also concerned about supplies from Britain's North Sea fields after weather-related platform shutdowns and were watching an expected drop in temperatures in the U.S. Northeast over the weekend that could boost heating oil consumption.
Meanwhile, oil major Exxon Mobil launched a legal attack on major U.S. crude supplier Venezuela, leading to the freeze of $12 billion of the country's overseas oil assets as it pushes for compensation for a nationalized oil project.
Venezuelan President Hugo Chavez has repeatedly threatened to suspend oil exports to the United States and has clashed publicly with U.S. President George W. Bush.
"The Venezuelan situation regarding the Exxon Mobil court orders is helping the crude rally as traders are concerned it could prompt some retaliation from Chavez," said Jim Ritterbusch, analyst at Ritterbusch and Associates.
The rally comes against the backdrop of continued OPEC production restrictions and recent comments from some members in the group that it may agree to cut production at the next scheduled meeting in March due to a weakening demand outlook.
Oil has tracked gyrations in the stock markets in recent weeks amid widespread fears of a U.S. recession, and markets across Europe and the United States were up on Friday.
Analysts at MF Global said: "Ultimately, the question that market participants will have to answer is whether on not there is going to be a recession and how deep and how long is it going to be?"
Fear of a U.S. recession that could dampen oil demand in the world's top consumer has pulled prices back from the record high of $100.09 a barrel hit at the start of this year.
A stream of data released in recent days has pointed to a recession steadily taking hold in the United States.
On Friday, the director of the Reuters/University of Michigan consumer sentiment survey said the U.S. economy had entered a recession that will be more painful and drawn out than the usual downturn.
Technical analysts, who study price charts for cues to future direction, also said that the repeated failure of oil to sink through so-called support levels around $86 a barrel had encouraged a bounce Friday. (Additional reporting by Santosh Menon in London and James Topham in Tokyo; Editing by Christian Wiessner)