* Cautious optimism before long weekend on fate of Lehman
* MSCI Asia ex-Japan index rebounds from 23-month low
By Kevin Plumberg
HONG KONG, Sept 12 (Reuters) - Asian stocks rose on Friday, with shares outside of Japan rebounding from a 23-month low on reports Lehman Brothers had put itself up for sale, suggesting a smaller risk of a Wall Street meltdown spreading to the region.
Oil prices edged up above $103 a barrel, supported by fears Hurricane Ike could disrupt U.S. production, but crude remained on course to fall below the psychologically important $100 level, especially with the euro falling to a one-year low against the dollar this week.
Gains in Japanese bank stocks such as Mitsubishi UFJ Financial Group <8306.T> outpaced the broad indexes on optimism that Lehman, whose shares plunged more than 40 percent on Thursday, would find a suitor by this weekend.
The U.S. Treasury and the Federal Reserve are reportedly engineering the sale of Lehman through a consortium of private firms, the Washington Post said. [
]"We have reports about Lehman's buyout talks today, and that is positive because that means the number of ailing entities will decrease through an industry realignment," said Masaru Hamasaki, senior strategist at Toyota Asset Management in Tokyo.
Japan's Nikkei share average <
> rose 1.1 percent, rebounding from a six-month low.The MSCI index of other Asia-Pacific stocks <.MIAPJ0000PUS> climbed 0.9 percent after closing at its lowest since October 2006.
South Korea's KOSPI rose 1.4 percent, led by shares of Samsung Electronics Co Ltd <005930.KS> and POSCO <005490.KS>, the world's No. 4 steelmaker.
Many investors were in wait-and-see mode ahead of any developments with Lehman, though in the thick of the financial crisis, any progress has been followed with signs of trouble at other institutions.
Indeed, Washington Mutual Inc <WM.N>, the largest U.S. savings and loan, was downgraded to below investment-grade status by Moody's Investors Service on Friday, citing constraints to tapping capital markets.
Impatience with the persistent problems in the financial sector as well as a global economic slowdown that is hitting European and Japan hard has led to a reduction in risk taking in just about every asset class. This so-called deleveraging has provided a boost to the U.S. dollar as U.S. investors bring some money back home from abroad.
Institutional investors have been ploughing money back into the dollar. In the last month, cross-border flows into the dollar have been in the 94th percentile, meaning they have been higher only 6 percent of the time, according to State Street Global Markets, which tracks 15 percent of the world's tradeable assets.
In the wake of U.S. bailout of government sponsored enterprises (GSEs) Fannie Mae and Freddie Mac this week, analysts at State Street expect foreign central banks to continue to add to their immense foreign exchange reserves and recycle the proceeds into Treasury debt.
"The GSE bail out adds a whole new dimension to global imbalances. It is also perhaps no coincidence that the one asset that has been rising in recent days is the U.S. dollar," they said in a note.
The euro was down 0.2 percent to $1.3995 <EUR=> after hitting a one-year low around $1.3880 the prior session.
The dollar was relatively unchanged against the yen, at 107.12 yen <JPY=>.
However, the euro continued to feel pressure from the yen. It was down 0.2 percent to 149.95 yen <EURJPY=>, after tumbling to a two-year low on Thursday.
The October U.S. light crude contract was up 43 cents to $101.30 a barrel <CLc1> after falling as low as $100.10 overnight. (Additional reporting by Aiko Hayashi in TOKYO; Editing by Lincoln Feast)