Oil rose above $69 a barrel on Thursday after Nigeria's main militant group shut down one of Royal Dutch Shell's
U.S. crude futures for August gained 77 cents to $69.44 a barrel by 10:26 a.m. EDT. London Brent crude rose 85 cents to $69.18 a barrel.
In the latest in a string of attacks in Nigeria, Africa's biggest oil producer, the Movement for the Emancipation of the Niger Delta (MEND), said it had sabotaged the Billie-Krakama pipeline in Rivers State, which supplies one of the country's main export terminals.
Attacks from MEND have forced foreign oil companies, including U.S. oil major Chevron
Shell said it had shut down one of its pipeline junction points on Thursday but declined to say whether any oil production had been affected.
Analysts said the effect on prices had been subdued with plenty of spare supply capacity available around the world, as the global recession has cut demand for oil.
The Nigerian attacks have definitely been supportive, but the impact is less in the current economic environment as there's plenty of spare capacity in the oil industry right now, Andrey Kryuchenkov, an analyst at VTB Capital in London, said.
When we were rallying toward $150 a barrel last summer a small sneeze in Nigeria would send the market rallying at least $2 a barrel. There's less of a geopolitical premium in prices now.
Falling demand for oil sent oil prices crashing from record highs close to $150 a barrel last July toward $30 a barrel at the turn of the year. Since mid-April, however, prices have risen sharply on prospects for an economic recovery.
A Reuters poll of industry analysts showed oil prices are expected to average more than $70 a barrel in 2010, compared with the latest forecast average of $56.59 for this year.
On Wednesday, U.S. government data showed stocks of gasoline in the world's largest energy consumer rose 3.9 million barrels last week, exceeding analysts' predictions. Stocks of distillates -- such as diesel and heating oil -- have risen to 10-year highs due to the recession.
But prices took support from a large drop in stockpiles of crude oil, which declined by 3.8 million barrels last week.
The U.S. economy shrank slightly less in early 2009 than previously thought, the government reported on Thursday, though there was widespread weakness in activity and demand was soft. Gross domestic product dropped 5.5 percent in the first quarter, from 6.3 percent in the last quarter of 2008.
Separately, the Labor Department said the number of workers filing new claims for jobless benefits unexpectedly rose last week by 15,000 to a seasonally adjusted 627,000 -- a measure of the strain still faced by hard-pressed consumers.
Oil pulled back slightly falling the jobless claims report, with the dollar strengthening as investors appetite for risk was curbed. A stronger dollar makes commodities priced in the greenback more expensive for holders of other currencies.
(Additional reporting by Ramthan Hussain in Singapore; Editing by William Hardy)