* Global stocks gain on reassuring earnings, economic news
* Euro rises for 4th session vs dollar on German sentiment
* U.S. bonds tumble on supply worries, waning safety bid
* Oil tops $51 a barrel on stock gains, dollar weakness (Recasts, updates U.S. markets; changes dateline, previous LONDON)
By Herbert Lash
NEW YORK, April 24 (Reuters) - Oil and global stocks rallied on Friday after better-than-expected results at Ford Motor and American Express, along with reassuring U.S. and German economic news, provided cheer amid some dire economic data.
The euro rose for a fourth day against the U.S. dollar to trade at a one-week high after German corporate sentiment in April rose to its best level in five months, boosting hopes the downturn in the euro zone's largest economy may be bottoming.
Oil jumped above $51 on rising stock market optimism, a weaker dollar and data showing the inventory of U.S. homes for sale plummeted at a record pace at the end of March. But price gains were capped by historically high inventories of crude.
Rising stocks nipped the safe-haven appeal of government debt as investors worried about a spate of debt supply next week, but euro zone government bonds rose after Britain's economy posted its sharpest first quarter decline in 30 years. [
]The unemployment rate in Spain soared to above 17 percent, also helping European debt prices to rise. [
]The U.S. economic data set a positive tone for stocks, with March durable goods orders slipping by less than expected while new home sales last month were stronger than expected. That raised hopes the economic cycle may have hit a trough.
A 5.2 percent monthly change in inventories of new U.S. homes was the largest drop in more than 45 years, while the year-on-year plunge of 33.7 percent was the largest on record.
The data "is adding some encouragement to the idea that maybe the economy is flattening out here at the bottom," said Kim Rupert, managing director of global fixed-income analysis at Action Economics LLC in San Francisco.
Shares of American Express <AXP.N> surged 16 percent, the biggest boost to the Dow, and Microsoft Corp's <MSFT.O> 8.3 percent rise was the biggest lift on Nasdaq.
Investors cheered Microsoft's cost-cutting efforts and appeared relieved that the release of its Windows 7 operating system was on track.
Ford posted a smaller-than-expected loss and said it did not expect to seek government loans, despite the auto sector's deep downturn. [ID:nN24400235) Ford rose 16.3 percent.
At 1 p.m., the Dow Jones industrial average <
> was up 135.32 points, or 1.70 percent, at 8,092.38. The Standard & Poor's 500 Index <.SPX> was up 15.46 points, or 1.81 percent, at 867.38. The Nasdaq Composite Index < > was up 40.16 points, or 2.43 percent, at 1,692.37.The FTSEurofirst 300 <
> index of top European shares ended 2.3 percent higher at 810.38 points, but fell for the week. It was the first weekly loss in the past seven weeks.The euro enjoyed broad gains after the German Ifo business climate index rose to 83.7 in April from 82.2 last month, beating forecasts for 82.3.
The euro <EUR=> was up 0.94 percent at $1.3269.
The dollar fell against a basket of major currencies, with the U.S. Dollar Index <.DXY> off 0.94 percent at 84.602.
Against the yen, the dollar <JPY=> fell 1.06 percent at 97.01.
U.S. crude oil futures <CLc1> rose $1.75 at $51.37 a barrel, and London Brent crude <LCOc1> rose $1.62 to $51.73.
Oil has been influenced by equity markets for much of the week, as an indicator of future economic strength and of the potential for higher oil demand, and dollar fluctuations.
"The dollar weakened yesterday, and it is weakening further. Equities are holding well at this moment so that is providing support to oil prices," said Olivier Jakob with Petromatrix.
Gold surged to a three-week high before easing, boosted by the prospect of further purchases by China after the country said it had been buying the precious metal since 2003.
Spot gold <XAU=> in New York rose $8.30 to $910.30 an ounce.
"The massive accumulation of foreign exchange reserves meant gold as a proportion of total reserves had fallen below 1 percent compared with a norm of about 2 percent," said Michael Lewis, head of commodities research at Deutsche Bank.
The idea that the economic tailspin may have touched bottom boosted stocks and undermined bonds, which were also being hit by worries over an expected pending wave of debt supply.
The benchmark 10-year U.S. Treasury note <US10YT=RR> was down 14/32 in price to yield 2.98 percent. The 2-year U.S. Treasury note <US2YT=RR> fell 1/32 in price to yield 0.95 percent.
Asian stocks fell on earnings disappointments, snapping the region's longest streak of weekly gains in 18 months.
Japan's Nikkei average <
> fell 1.6 percent, underperforming the broad regional downdraft, while MSCI's index of Asia Pacific <.MIAPJ0000PUS> shares excluding Japan fell 0.4 percent. (Reporting by Leah Schnurr, Vivianne Rodrigues, Chris Reese in New York; Sitaraman Shankar, Ikuko Kao, Pratima Desai in London; writing by Herbert Lash; Editing by Padraic Cassidy)