Crude oil moved above $91 a barrel Friday, a day after the International Energy Agency announced it would release 60 million barrels of crude oil from reserves.
Oil prices edged above $91 a barrel on Friday, steadying after a big drop the day before when the IEA announced the release of emergency crude supplies.
In London, Brent crude for August delivery was down 36 cents to $106.90 a barrel on the ICE Futures exchange.
Nymex crude fell $4.39 to settle at $91.02 on Thursday after the International Energy Agency said it will make 60 million barrels available over a 30-day period, half of which will come from the U.S. Strategic Petroleum Reserve.
Analysts said the move likely reflected increasing concern that the global economy is slowing, and that high oilprices boost inflation and dampen consumer demand.
"We think the IEA did the right thing, since we believe that world economies were on the verge of a dangerous energy-induced slowdown, if not an outright recession," said Edward Meir at MF Global in New York.
"Breaking the back of this price spiral was therefore important in so far as some of the recent inflationary gains will now likely be reversed — assuming energy prices continue trending lower — while more importantly, central banks in key emerging markets will be less inclined to raise rates."
Earlier this week, Federal Reserve Chairman Ben Bernanke warned that the U.S. economy is weaker than previously forecast, and lowered this year's gross domestic product growth estimate to 2.9 percent from 3.3 percent.