* Oil up above $137 a barrel on supply worries
* Yen at 11-month low against euro, down on dollar
* Stocks flat
* Federal Reserve meeting in background
By Jeremy Gaunt, European Investment Correspondent
LONDON, June 24 (Reuters) - Oil jumped well above $137 a barrel on Tuesday, but many financial markets moved into cautious trading ranges before a U.S. Federal Reserve decision on interest rates later in the week.
A weak Japanese yen lifted the euro to an 11-month high. European shares were slightly up, lifted by mining stocks, while Japanese equities closed flat.
Oil was driven higher by worries about tension between Iran and Israel and by a strike in Nigeria. New York crude <CLc1> was up 84 cents at $137.58 a barrel.
The yen was one of the most active movers of the day, falling against both the dollar and euro on a combination of increased risk appetite, weak Japanese corporate surveys and interest rate differentials with the United States and Europe.
"Yen weakness seems to be driven by talk of strong retail outflows from Japan into overseas assets," said Adam Cole, global head of FX currency strategy at RBC Capital Markets.
The euro hit an 11-month high against the yen, rising as far as 168.26 yen according to Reuters data, its strongest since July 2007 <EURJPY=>. It was up around 0.4 percent.
The dollar <JPY=> also gained against the yen, up 0.1 percent to 108.02 yen, but was down on the euro. The euro <EUR=> brought $1.5570.
The Fed's rate announcement on Wednesday was in the background of much trading. The policymakers are expected to keep rates unchanged at 2.0 percent, but their recent hawkishness about inflation will be in focus.
Prospects of higher U.S. and European interest rates, for example, were behind some of the yen weakness. EUROPEAN STOCKS RISE
European shares got off to a higher start, lifted by gains in miners but with one eye on the Fed, before easing back.
The FTSEurofirst 300 <
> index of top European stocks was up 0.1 percent. "Other than resources stocks and companies up on merger talk, everything seems moribund," said David Buik of Cantor Index.Earlier, Japan's Nikkei stock average ended flat.
"Oil prices are stuck not far off their highs and U.S. financial shares are stuck at lows. There's no financial meltdown, that's over, but there's still a lot of worries," said Koichi Ogawa, chief portfolio manager at Daiwa SB Investments.
The benchmark Nikkei <
> ended down 0.1 percent, or 7.91 points, at 13,849.56, the lowest close since May 28. The broader Topix < > was up 0.1 percent at 1,349.19.Euro zone government bonds were flat to lower following stronger-than-expected French data and weaker Treasuries in New York. The interest rate-sensitive two-year Schatz yield <EU2YT=RR> was up 3 basis points at 4.600 percent. The 10-year Bund yield <EU10YT=RR> was flat at 4.630 percent.