* Markets shrug off strong euro zone GDP growth
* OPEC monthly report signals slow 2011 demand growth
* U.S. retail sales, consumer sentiment improve slightly
(Recasts, updates prices, market activity, changes byline and moves dateline from previous LONDON)
By Robert Gibbons
NEW YORK, Aug 13 (Reuters) - Crude oil prices fell a fourth straight day on Friday as concerns about faltering economic growth weighing on equities and oil were not alleviated by fresh retail sales and consumer sentiment reports.
U.S. retail sales rebounded in July but the gains were concentrated in autos and gasoline station sales and showed hints of lingering economic softness. [
]Consumer sentiment showed improvement in August, but as with the retail sales data, there were still signs people remain nervous about the near term.
U.S. crude for September <CLc1> delivery fell 40 cents to $75.34 a barrel at 12:43 p.m. EDT (1643 GMT), having traded from $75.05 to $80.40. Front-month ICE Brent crude <LCOc1> fell 52 cents to $75 a barrel.
Oil prices were on track to end 6 percent lower from a week ago, having been pummeled earlier in the week by a jobless claims rise highlighting a fragile U.S. employment sector and rising refined fuel stockpiles punctuating tepid demand. <^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Graphics on the technical outlook and on correlations: http://graphics.thomsonreuters.com/WT/20101308090217.jpg http://graphics.thomsonreuters.com/gfx/ABE_20100408121347.jpg ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^>
"The whole week has been about poor economic data and today's releases show that the U.S. consumer is still on the mend," said Harry Tchilinguirian, commodity strategist at BNP Paribas.
"Retail sales disappointed and if consumer confidence in August managed to come in a notch above expectations ... it still remains below the June reading."
The U.S. dollar rose and headed for its strongest weekly performance in almost two years against a basket of currencies after lackluster results in an Italian bond auction weighed on the euro. The euro fell to a three-week low against the dollar.
Earlier on Friday, strong euro zone economic data pushed oil prices up $1, before the rally by European stocks and the euro gave way.
Euro zone gross domestic product grew at its fastest pace in more than three years in the second quarter, boosted by strong performances in Germany and France. [
] [ ]OPEC DEMAND VIEW LITTLE CHANGED
The Organization of the Petroleum Exporting Countries said in a monthly report that oil demand growth would continue be slow in 2011, when world economic expansion is projected to be slightly lower than in 2010, leaving the current supply overhang intact. [
]And with U.S. crude oil inventories remaining at a premium to year-ago levels, OPEC members' production has been creeping higher. Members with output quotas -- all except Iraq -- produced 26.861 million barrels per day in July, 142,600 bpd more than in June.
In July, OPEC members met 52 percent of the 4.2 million bpd cuts producers agreed to in 2008, down from 55 percent in June, according to Reuters calculations. based on OPEC data.
On Thursday, oil prices slipped on a report that the number of people filing new jobless claims in the United States unexpectedly rose to its highest level in close to six months, another sign of sluggish economic recovery. [
]That followed Wednesday's report showing U.S. refined oil products stocks, including gasoline, rose last week even at the height of the summer driving season, according to the U.S. Energy Information Administration. [
] (Additional reporting by Gene Ramos in New York, Emma Farge in London and Florence Tan in Singapore; Editing by Marguerita Choy)