(Recasts with U.S. markets, changes dateline; previous LONDON)
* Oil jumps $6 a barrel, rekindling inflation jitters
* Financial stocks at 5-year lows on write-off speculation
* Debt prices rebound amid doubts on future rate hikes
By Herbert Lash
NEW YORK, June 11 (Reuters) - Oil prices jumped $6 a barrel on Wednesday, rekindling inflation jitters and sending stock prices sharply lower on both sides of the Atlantic.
Fear of more financial trouble also soured investor sentiment as Lehman Brothers deteriorating share price again pushed financial stocks lower. Rumors circulated of more investment banks taking writedowns in the upcoming earnings season.
The dollar fell against the euro as investors mulled the outlook for interest rates hikes in the United States and Europe after officials at the Federal Reserve and the European Central Bank sounded the inflation alarm in recent days.
Both U.S. Treasuries and euro zone interest rate futures rose after two days of dramatic falls on the view that selling had gone too far in factoring in near-term rate hikes.
While investors reassessed the likelihood of an ECB rate rise as early as July, oil prices swung wildly after weekly U.S. inventory data showed a sharp fall in crude stocks.
The drop was four times the amount analysts' expected, with crude stocks falling by 4.6 million barrels to 302 million barrels last week, according to the Energy Information Administration, a U.S. government agency.
Oil already was higher before the release of the U.S. data due to strong growth in China's oil imports and a report from oil major BP <BP.L>. BP said the world's proven oil reserves were mostly unchanged last year, a further indication of tightening global oil supplies.
"Inventories were taken down more sharply than expected," said Al Goldman, chief market strategist at Wachovia Securities in St. Louis. "There have been some wild and wooly projections on where oil is going and this kind of fed into it."
Other commodity prices also ignited inflation fears.
U.S. corn futures hit an all-time high on a lowered 2008 crop forecast, driving a rally that pulled up rice, soybeans and wheat.
European and U.S. equity markets fell more than 1 percent, with the Standard & Poor's 500 financial sector <.GSPF> dropping to a five-year low, led by declines in investment bank shares, on speculation Goldman Sachs <GS.N> will report a large write-off next week when it releases quarterly results.
Fear of a big bank writeoff has been "the major driver," in creating "increased fear of financials," said Rick Meckler, president of investment firm LibertyView Capital Management in Jersey City, New Jersey.
At midday, the Dow Jones industrial average <
> was down 177.00 points, or 1.44 percent, at 12,112.76. The Standard & Poor's 500 Index <.SPX> was down 17.28 points, or 1.27 percent, at 1,341.16. The Nasdaq Composite Index < > was down 38.71 points, or 1.58 percent, at 2,410.23.Lehman <LEH.N> shares fell 6.4 percent to $25.75. The Financial Times said the bank had sought capital from Korean financial institutions, and may enter a deal later this year.
European shares fell amid heightened financial sector worries and fears of higher inflation and slower growth.
Royal Bank of Scotland <RBS.L> dropped 9 percent after the UK bank said results would be held back by the impact of the global credit crunch even as the performance and write-downs on risky assets remained in line with its previous outlook.
The DJ Stoxx European bank index <.SX7P> fell 2.8 percent, weighed by British mortgage bank HBOS <HBOS.L>, which fell 11.6 percent to below its planned rights issue price of 275 pence per share.
The FTSEurofirst 300 <
> index of top European shares ended with a loss of 1.7 percent at 1,249.46 points, its lowest close since March 20.U.S. Treasury debt prices were higher. The benchmark 10-year U.S. Treasury note <US10YT=RR> rose 8/32 to yield 4.07 percent. The 30-year U.S. Treasury bond <US30YT=RR> rose 2/32 to yield at 4.69 percent.
The dollar fell against major currencies, with the U.S. Dollar Index <.DXY> down 0.62 percent at 73.177, and against the yen, the dollar <JPY=> fell 0.57 percent at 106.82.
The euro <EUR=> rose 0.69 percent at $1.5569.
U.S. light sweet crude oil <CLc1> rose $6.18 to $137.49.
U.S. gold futures rallied, driven up by bullish funds who bought day-earlier dips as oil's advance resumed and by dollar weakness, traders said.
Gold tends to move up on the inflationary implications of rising crude oil prices, which climbed more than $3 to $135 a barrel on signs of tightening global oil supplies.
Spot gold prices <XAU=> rose $15.50 to $881.85.
Asian stocks rebounded from a two-month low, with Japan's Nikkei share average <
> rising 1.2 percent and MSCI's index of other Asia-Pacific shares <.MIAPJ0000PUS> gaining 0.3 percent after earlier touching April lows. (Reporting by Ellis Mnyandu, Burton Frierson, Nick Olivari and Carole Vaporean in New York and Ikuko Kao in London and Peter Starck in Frankfurt) (Reporting by Herbert Lash. Editing by Richard Satran)