* FTSEurofirst 300 closes 0.6 pct lower
* Rallying crude prices stoke inflation, growth fears
* Allianz falls on disappointing dividend
By Brian Gorman
LONDON, Feb 24 (Reuters) - European shares closed lower on Thursday, on course for their biggest weekly fall in nearly eight months, as unrest in Libya crisis sent crude prices still higher, sparking worries about inflation and economic growth.
The FTSEurofirst 300 <
> index of top shares fell 0.6 percent to 1,145.61 points, the lowest close since Jan. 31. The index is down 3.5 percent so far this week, though it is still up more than 77 percent from its lifetime low of March, 2009.Brent crude futures <LCOc1> surged to their highest since August 2008 on supply concerns arising from the crisis in oil-rich Libya, stoking fears higher raw materials costs will further erode company margins at a time of rising inflation.
Crude prices were also bolstered by data showing that U.S. inventories rose less than expected last week.
Major oil users were among the biggest fallers. German airline Lufthansa <LHAG.DE> fell 2.7 percent, and International Consolidated Airlines Group <ICAG.L> shed 3.5 percent to its lowest close since it was formed last month from the merger of British Airways and Iberia.
But some investors say the rally will soon resume.
"You can't see a quick resolution to what's going on, but I see the market's fall as an over-reaction," said Caroline Vincent, fund manager at Cavendish Asset Management. "There are worries about oil prices and inflation, but Saudi Arabia has said it will meet the oil shortfall."
The energy sector recovered some lost ground as investors' concern about restricted output in the Middle East was offset by the benefit of higher crude prices.
Total <TOTF.PA>, ENI <ENI.MI>, BP <BP.L> and Repsol <REP.MC> rose between 0.9 and 1.6 percent.
Unrest in the world's 12th-biggest exporter has cut at least 400,000 barrels per day (bpd) from Libya's 1.6 million bpd output, according to Reuters calculations. ENI Chief Executive Paolo Scaroni said Libyan output had fallen much more dramatically, estimating it was putting 1.2 million barrels per day less into the market. [
]Across Europe, Britain's FTSE 100 <
> and France's CAC40 < > both fell 0.1 percent; Germany's DAX < > fell 0.9 percent.
PORSCHE TUMBLES
Porsche <PSHG_p.DE> fell 10.7 percent after the carmaker said a planned merger with Volkswagen <VOWG_p.DE> would be delayed by a widening investigation into former board members. [
]Higher oil prices also continued to weigh on the auto sector <.SXAP>. Renault <RENA.PA> and BMW <BMWG.DE> were down 2.7 and 2.2 percent, respectively.
A bumper equity issue from Aegon <AEGN.AS> and a disappointing dividend from Allianz <ALVG.DE> stirred fresh fears about European insurers' capital strength. The two fell 1 and 2.7 percent.
In the banking sector, Royal Bank of Scotland <RBS.L> fell 3.6 percent after high bad debt charges in Ireland and a drop in investment banking income overshadowed the bank's return to profit in the final months of 2010. [
]French bank Credit Agricole <CAGR.PA> rose 5.2 percent after it dismissed fears it would have to raise new capital to meet tougher Basel III banking rules. [
]Germany's RWE <RWEG.DE>, Europe's fifth-largest utility, fell 5.2 percent after saying it would cut investments and sell assets to counter a worsening profit outlook. [
]Muammar Gaddafi was clinging to power on Thursday as rebels seized important towns in the west of Libya. [
]"The problem with civil unrest is that we don't really know when it's going to end. It might get worse and the supply of oil might come down even more, and that's a big concern for the market," said Sebastian Lynar, sales trader at IG Index.
Euro zone economic sentiment jumped in February to its highest level since the economic crisis, but a surge in inflation expectations accompanied prospects of a rebound of growth in the first quarter. [
]U.S. economic data was mixed. Claims for jobless aid fell last week, hinting at an improvement in the labour market, but declines in new home sales and orders for a range of factory goods in January showed the economy still faced headwinds. [
] (Additional reporting by Harpreet Bhal; Editing by Will Waterman)