SINGAPORE Brent crude prices steadied above $109 on Wednesday as investors pinned their hopes on the U.S. Federal Reserve to inject fresh stimulus measures to boost the world's largest economy.
Markets are betting that Fed Chairman Ben Bernanke could use his address later this week at a policymakers gathering in Jackson Hole, Wyoming, to signal more quantitative easing measures that could translate to more demand.
Reduced crude stockpiles in the U.S., uncertainty over when the conflict in Libya will end and a force majeure by Royal Dutch Shell (RDSa.L) on Bonny Light sweet crude were also supporting sentiment.
"The oil market is trending higher, and you see this in the equities market as well, but it's purely based on the prospects of a QE2," Jonathan Barratt, managing director at Commodity Broking Services in Sydney, said.
"Hopefully they do come up with a QE3 of some sort. But will this be just a short term gain? We have already seen a lot of pain. We still have economic concerns and prospects of a double dip."
Brent crude was about 18 cents higher at $109.49 a barrel as of 0403 GMT, while U.S. October crude was 27 cents higher at $85.71 a barrel.
Asian stocks fell on Wednesday as a rally fuelled by speculation about the Fed ran out of steam, after a 3 percent jump in U.S. stocks on Tuesday. .N
Shell said on Tuesday it has been forced to shut in its Nigerian Bonny Light crude exports to repair pipeline damage caused by a recent spate of hacksaw attacks.
Traders said Nigeria's total exports would fall from a planned volume of about 2 million bpd in September and 1.85 million bpd in October.
U.S. crude inventories fell 3.3 million barrels in the week to August 19, against analyst forecasts for an 800,000-barrel rise.
The Energy Information Administration (EIA) will issue its own weekly data on Wednesday at 10:30 a.m. EDT (3:30 p.m. British time).
In Libya, rebels sacked Muammar Gaddafi's Tripoli bastion, seizing weapons and smashing symbols of a 42-year dictatorship.
Gaddafi said on Wednesday his withdrawal from his Bab al-Aziziya headquarters was a "tactical move" after the compound was levelled by 64 NATO air strikes.
Forces loyal to Gaddafi were shelling the towns of Zuara and Ajelat west of Tripoli, Al-Arabiya television reported.
In Tripoli, Reuters correspondents said there still appeared to be some hostile fire around the city centre as darkness descended and looting broke out.
Libya's former top oil official Shokri Ghamen had said on Monday that it would take as long as 18 months for Libya's oil flow to reach the pre-war of around 1.6 million barrels per day (bpd), nearly 2 percent of global supply.
"I actually feel that you are going to get more of an uptake in Libya's production. The production of the light sweet on the European market will come a lot sooner than what people expect," said Barratt, who estimated that Libya could be currently producing 180,000-200,000 bpd.
(Editing by Michael Urquhart)