* FTSEurofirst 300 down 0.1 pct, falls for 4th straight day
* Airbus sags; worries on demand for fuel-efficient aircrafts
* Investors awaited results of ECB TLTROs
By Blaise Robinson
PARIS, Dec 11 (Reuters) - European shares fell in early trading on Thursday, losing ground for the fourth session in a row, as this week's slump in oil and iron ore prices weighed on a number of resource-related stocks.
Shares in Airbus fell as much as 4.5 percent, adding to a 10 percent drop in the previous session after the planemaker predicted flat profits in 2016. That surprised investors who had expected new and recently upgraded models to start boosting results that year.
Analysts also cited rising concerns that tumbling oil prices will reduce airlines' incentive to buy new, more fuel efficient aircraft.
"Further downside risks to A330 production rates/pricing and worries over the impact of low oil prices on aircraft replacement demand could potentially weigh on market sentiment," Citi analysts wrote in a note.
Zara owner Inditex bucked the trend, gaining 3.1 percent after posting in-line earnings.
At 0920 GMT, the FTSEurofirst 300 .FTEU3 index of top European shares was down 0.1 percent at 1,356.47 points. The index has lost 3.5 percent so far this week.
Oil services stocks featured among the biggest losers, with Seadrill down 0.9 percent and PGS down 1 percent.
Brent crude has plummeted more than 40 percent since June, forcing a number of oil services companies to scrap dividends as oil majors accelerate cost-cutting efforts.
The STOXX oil and gas index has tumbled 27 percent since June. The sell-off has wiped $280 billion off market capitalisation of the sector, nearly the size of Israel's GDP.
Shares in CGG tumbled 9.3 percent on Thursday after a media report saying the French government has doubts about a potential tie-up with rival Technip. Technip shares gained 2.8 percent.
Investors awaited the results of the European Central Bank's loan offer to banks, expected around 1015 GMT. The ECB is offering banks cheap, four-year loans as part of a package of measures to add around 1 trillion euros to the ECB's balance sheet in a bid to pump money into the economy and stave off the threat of deflation.
According to a Reuters poll, banks are seen taking 130 billion euros. They borrowed 82.6 billion euros in a first tranche in September and can take up to 400 billion euros in both rounds combined.
"If the take-up is disappointing, there could be various reactions on stock indexes: a drop on the news, followed by a rebound as the disappointing news would spark hopes to see quantitative easing being launched in Europe earlier than what is currently expected," said John Plassard, senior sales trader at Mirabaud Securities, in Geneva.
Europe bourses in 2014: link.reuters.com/pap87v
Asset performance in 2014: link.reuters.com/gap87v
Today's European research round-up
Editing by Catherine Evans