* FTSEurofirst 300 falls 0.8 percent
* Banks drop on renewed worries about losses
* Oil stocks add most to index, despite oil price drop
By Christoph Steitz
FRANKFURT, Dec 17 (Reuters) - European shares closed lower on Wednesday as concerns about further losses at major banks persisted and grim data renewed worries about the economic outlook.
The FTSEurofirst 300 <
> index of top European shares closed down 0.8 percent at 828.53 points, as initial enthusiasm over the Federal Reserve's interest rate cut faded.The FTSEurofirst 300 has fallen more than 45 percent in 2008, hurt a by a credit crisis that has led several major economies sliding into recession.
Banks took the most points off the index, with BNP <BNPP.PA> sliding 17.2 percent after its investment banking unit suffered an 11-month loss, hit by rocky capital markets and exposure to an alleged $50 billion fraud by U.S. financier Bernard Madoff.
Deutsche Bank <DBKGn.DE> fell 8.8 percent amid market talk of a possible fourth-quarter loss on investment writedowns. The bank declined to comment.
The DJ Stoxx European banking sector index <.SX7P>, the worst performing sectoral index this year, lost 4 percent. HSBC <HSBA.L>, Societe Generale <SOGN.PA> and Natixis <CNAT.PA> were down between 5.8-11.9 percent.
"Weaker company data are back in focus," said Heinz-Gerd Sonnenschein, equity strategist at Postbank in Bonn, Germany.
"The news about BNP is the main trigger regarding European banks, while Morgan Stanley's results only seem to seem to have a marginal impact," he added.
Across Europe, Britain's FTSE 100 <
> closed up 0.35 percent, while Germany's DAX < > ended down 0.5 percent and France's CAC-40 < > down 0.3 percent.As European markets closed, major U.S. bourses <
> <.SPX> < > were down between 0.3 and 0.4 percent.
BIG JUMP IN UK JOBLESS
Grim data provided further evidence of economic weakness.
The number of Britons out of work and claiming benefit rose for a tenth consecutive month in November and by the largest amount since March 1991, data showed. [
]UK retail sales fell at their fastest annual pace in at least a quarter of a century in early December as the key Christmas season got off to a dismal start. [
]In addition, Ireland's retail sales registered the biggest year-on-year drop in over 24 years in October, showing a deepening recession, shattered consumer confidence and job worries taking their toll. [
]The DJ Stoxx European retail sector index was down 0.5 percent.
Analysts said the Federal Reserve's move on Tuesday to cut rates to a range of zero to 0.25 percent was just one in a long list of policy responses and unlikely to make much difference on its own.
"It's symbolic that we have gone to zero, that's it. Am I as a company going to act any differently? No is the answer," said John Haynes, strategist at Rensburg Sheppard Investment Management.
"There are too many big things going on for any individual big thing to make much of a difference."
Oil and gas producers added most points to the index, despite crude oil <CLc1> sliding about 5.3 percent, after OPEC announced a record supply cut that dealers said would not be enough to counter slumping world energy demand.
BP <BP.L>, StatoilHydro <STL.OL> and BG Group <BG.L> advanced between 1.6 and 3.2 percent.
(Additional reporting by Sitaraman Shankar and Sarah Marsh; editing by Elaine Hardcastle)