* Libya conflict unresolved, Middle East still tense
* Coming Up: API U.S. weekly inventory report
(Updates prices, adds analyst comment)
By Nia Williams
LONDON, March 22 (Reuters) - Oil prices eased on Tuesday as an anticipated slowdown in Western air strikes on Libya and some respite in Middle East protests convinced some investors the market was overbought.
Anti-aircraft fire rang out across Tripoli for a third night on Monday, but U.S. President Barack Obama, wary of getting sucked into a Libyan civil war, said the United States will cede control of the air assault in days. [
]In the Middle East, where violent unrest over the weekend supported crude prices, protests appeared to have dampened down except in Saudi Arabia's neighbour Yemen, whose president warned of civil war if he is forced to quit. [
]Brent crude <LCOc1> was 50 cents lower at $114.46 at 1345 GMT, still within sight of a two and a half year high near $120 hit last month. U.S. crude for May <CLc2>, the most liquid contract before the expiry of April later on Tuesday, shed 40 cents to $102.69.
"Markets have already priced in a lot of risk in the Middle East and Libyan oil production has been off for a while now," said Olivier Jakob, analyst at PetroMatrix. "We would need some new news on the Middle East to take prices much higher."
<^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ More on Middle East unrest: [
] [ ] US military leads on Libya but for how long? [ ] Libya Graphics http://link.reuters.com/neg68r Technical analysis on Brent [ ] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^>
Oil gained around 1 percent on Monday, the first trading day after U.N.-backed western powers launched the military campaign but Libyan rebels have so far done little to capitalise on their advantage, fuelling speculation the conflict could grind to a stalemate.
Although lost Libyan output may be largely priced in, traders will keep a close eye on any protests in countries bordering OPEC king-pin Saudi Arabia, the world's only "swing state" with enough spare capacity to plug serious production shortfalls elsewhere. [
] [ ]Iraqi oil minister Abdul-Kareem Luaibi said on Tuesday that OPEC believes the oil price is approaching $120 per barrel but unlikely to go higher, a level that is "acceptable" and will not hinder global growth. [
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Samuel Ciszuk, Senior Middle East & North Africa Energy Analyst at IHS Energy, will hold a Q+A session in the Global Oil Forum at 1500 GMT on Tuesday, looking at the rapidly evolving situation in Yemen, Libya and Syria and assessing political and economic risk across the region. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^>
JAPAN CRISIS
Prices have seesawed over the past week as concerns over Western military intervention in Libya offset the risk aversion that swept global financial markets after Japan's worst earthquake on record, tsunami and resulting nuclear crisis.
Japan will allow the release of an additional 22 days worth of crude oil from privately held reserves in a bid to ease energy shortages the trade ministry said, after allowing the release of 1.26 million kilolitres of reserves, or three days worth of demand, last week. [
]"This should bridge short-term supply gaps after the earthquake disaster. Japan's oil demand should rise accordingly when these stocks are replenished," Commerzbank analysts said in a note, adding 20 percent of lost nuclear energy production would have to be made up by fossil fuels.
Analysts expect weekly reports on U.S. oil inventories will show gasoline and distillate stockpiles fell last week, which should support product values. [
]Industry group the American Petroleum Institute will publish inventory statistics for the week ended March 18 on Tuesday, followed by U.S. government data from the Energy Information Administration on Wednesday.
(Additional reporting by Alejandro Barbajosa, editing by William Hardy)