* Global stocks mostly sag as bailout debate continues
* U.S. oil slips, fuel inventories drop on Ike disruptions
* U.S. government debt advances on bailout plan worries
* Dollar slips against euro and yen (Adds close of U.S. markets)
By Herbert Lash
NEW YORK, Sept 24 (Reuters) - Crude oil and global stocks slid on Wednesday as doubts about the final shape of the U.S. government's $700 billion plan to forestall a wider economic crisis weighed on investors.
Concerns over how Congress will shape the planned rescue of troubled banks eclipsed optimism generated by billionaire Warren Buffett's $5 billion investment in Goldman Sachs <GS.N> and pushed investors into gold and government debt.
Shares rose overnight in Asia on the Buffett news but European shares fell as investors worried about the bailout plan. U.S. stocks see-sawed throughout the day to end mostly lower for a third day. The Nasdaq rose slightly on the hope business spending on technology will rise when the bailout is approved.
Investors latched onto cash and low-risk assets, sending one-month yields on U.S. Treasury bills to below zero at one point. Bullion holdings in the SPDR Gold Trust <GLD.P>, the world's largest gold-backed exchange-traded fund, rose 2 percent to a record 724.94 tonnes on buying momentum.
Gains in safe-haven assets and equity declines were capped by cautious optimism about Buffett's bet on Goldman, which was seen as a vote of confidence in the banking sector.
Other signs of risk appetite could be seen. Earlier, the yen fell against the dollar as traders sold the low-yielding Japanese currency to finance riskier investments.
Treasury Secretary Henry Paulson and Federal Reserve Chairman Ben Bernanke testified for a second day to Congress. Bernanke urged immediate approval of the bailout to thwart "serious consequences" for the U.S. economy and financial markets.
While many investors said they believed the proposal would be passed, the devil was in the details, and with politicians playing a large role in deliberations angst was widespread.
"My gut feeling is that the proposal will get passed but this is an election year and the politicians are going to milk this. There is certainly an underlying reluctance to give this $700 billion blank check to Paulson," said Win Thin, a senior currency strategist at Brown Brothers Harriman in New York.
If Congress doesn't act quickly, investors fear banks won't resume lending, risking more harm to the economy and the outlook for corporate profits.
Worries about the passage of the bailout intensified safety bids for short-term debt as well as longer-dated bonds. Efforts to repair the banking sector helped lift the price of euro zone debt, as did a slump in German business sentiment.
"There's a tremendous amount of anxiety whether this bill will get passed," said Thomas di Galoma, head of U.S. government bonds at Jefferies & Co. in New York.
The Dow Jones industrial average <
> closed down 29.00 points, or 0.27 percent, at 10,825.17. The Standard & Poor's 500 Index <.SPX> fell 2.23 points, or 0.19 percent, at 1,185.99. The Nasdaq Composite Index < > was up 2.35 points, or 0.11 percent, at 2,155.68.Shares of Goldman Sachs closed up 6.4 percent at $133.00, after the Buffett investment was announced late on Monday. Berkshire Hathaway <BRKa.N>, Buffett's holding company, added 3.5 percent.
But shares of Citigroup <C.N> were a top drag on the Dow and S&P, falling 5.2 percent to $18.96.
European stocks ended lower. The FTSEurofirst 300 <
> index of top European shares closed 0.63 percent lower at 1,101.60 points, falling for the third consecutive session.Euro zone government debt rose as weakening business morale in Germany, France and Italy offered more evidence that the region is sinking into recession, and could lead the European Central Bank to cut interest rates in the future.
U.S. government debt also rose. A big thrust into T-bills sent one-month rates <US1MT=RR> a touch below zero percent overnight and three-month rates <US3MT=RR> below 0.50 percent.
"A lot of people are very, very, very risk averse right now," said Ted Ake, executive director and head of bond trading with Mizuho Securities USA in New York. "Money market funds are being inundated with (investors making) the case that they only want to be in Treasuries.
"Eventually that will subside," he added.
The benchmark 10-year U.S. Treasury note <US10YT=RR> was little changed, yielding 3.80 percent. The 30-year U.S. Treasury bond <US30YT=RR> fell 7/32 to yield 4.40 percent.
The euro <EUR=> rose 0.14 percent at $1.4623, and against the yen the dollar <JPY=> fell 0.55 percent.
But the dollar rose against major currencies, with the U.S. Dollar Index <.DXY> up 0.23 percent.
Oil dipped as concerns over the U.S. economy and sliding fuel demand outweighed hurricane-related supply disruptions in the Gulf of Mexico that have pushed U.S. gasoline stockpiles to their lowest level since 1967.
U.S. crude <CLc1> fell 88 cents to settle at $105.73 per barrel, and London Brent crude <LCOc1> fell 63 cents to $102.45 a barrel.
December gold <GCZ8> settled up $3.80 at $895.00 an ounce in New York.
Asian financial shares rose after Buffett's investment in Goldman. Japan's Nikkei <
> gained 0.2 percent, while MSCI's index of Asia-Pacific stocks outside Japan <.MIAPJ0000PUS> was up 0.15 percent at 16:45 GMT. (Reporting by Ellis Mnyandu, Steven C. Johnson, Richard Leong, Gertrude Chavez-Dreyfuss and Nick Olivari in New York; Jane Merriman, Matthew Robinson and Naomi Tajitsu in London and Blaise Robinson in Paris; Writing by Herbert Lash; Editing by Leslie Adler)