* Eastern Libya breaks free from Gaddafi's control
* Concern that other big producers could suffer outages
* Repsol suspends operations in Libya
(Updates prices, progress of revolt)
By Claire Milhench
LONDON, Feb 22 (Reuters) - Both Brent <LCOc1> and U.S. crude oil <CLc2> rallied to 2-1/2 year highs on Tuesday on concerns the revolt in Libya could spread to other major oil producers as companies suspended operations and ports were disrupted.
At 1505 GMT, Brent crude oil futures for April delivery were up 71 cents to $106.45, after earlier touching $108.57 while U.S. crude for April delivery was up $5.12 at $94.83.
The jump in U.S. crude is partly explained by the fact that electronic trading of the contract occurred on Monday, but there was no settlement close as the exchange in New York was closed for a holiday.
Both oil contracts gave up some gains after comments from the Saudi Arabian oil minister that Saudi Arabia and other OPEC members were ready to meet any shortage from disruption caused by the spreading unrest. [
]Libya produces around 1.6 million barrels of oil per day, and OPEC has spare capacity of up to 6 million barrels, so even if all exports were stopped this would not create a supply shortage, said Carsten Fritsch, an analyst at Commerzbank.
"It is more fears that this might spread to places like Algeria, Kuwait or the United Arab Emirates," he said.
Libya is the third-largest oil producer in Africa, and has Africa's largest proven oil reserves at 44 billion barrels, according to the U.S. Energy Information Administration.
Trading sources reported that operations at Libyan oil ports were disrupted by a lack of communications. "The assumption is that the ports are either already closed or are closing," said a trader with a company that buys Libyan oil. [
]Repsol, the Spanish oil and gas company, said that it had suspended all operations in Libya, including stopping oil production from the El-Sharara field.
This followed staff evacuations by other European oil and gas firms such as Shell <RDSa.L> while German company Wintershall has wound down production as a precautionary measure. [
] [ ]Iran has also stopped its oil-related activities in Libya and will evacuate staff in the next 48 hours [
].Witnesses have said Libyan leader Muammar Gaddafi has used tanks, helicopters and warplanes to put down the revolt, bombing parts of the capital Tripoli, which has drawn condemnation from world leaders [
] [ ].Rebel soldiers said the eastern region of Libya had broken free from Gaddafi, who is reported to be planning to address the nation "shortly" [
] [ ].The Arab League was planning to hold an emergency meeting in Cairo at 1500 GMT to discuss the Libyan revolt. [
]U.S. crude for March delivery <CLc1>, which expires on Tuesday, was up $5.31 at $91.51 after also earlier touching a two-and-a-half-year high at $94.49.
Analysts and investors have been growing increasingly concerned that tensions in Bahrain could spill over the border into Saudi Arabia. [
]"It's like one of those Australian bushfires -- once it takes hold, it's very difficult to put out," said Michael Hewson, an analyst at CMC Markets. "Until the situation in the Middle East settles down, you are going to have very wild price swings."
SUPPLY DISRUPTION
Saudi Arabia is hosting the International Energy Forum in Riyadh today and attendees have been voicing their concern about rising oil prices [
].The talks aim to narrow the gap between producer and consumer nations, but the turmoil in Libya has overshadowed the event, forcing ministers to send messages of reassurance to the market.
James Zhang, oil analyst at Standard Bank Commodities said that although OPEC and the IEA are likely to act in the event of severe supply disruption, they are likely to be behind the curve. "Therefore, we expect a volatile market for oil in the near term," he said. <^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Factbox on Libyan oil production, exports: [
]Libyan oil map: http://r.reuters.com/jem28r
Interactive factbox on MidEast, Africa:
http://link.reuters.com/puk87r ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^> (Additional reporting by Francis Kan; Editing by Alison Birrane)