* U.S. says no reason to believe Gaddafi dead
* ENI says up to 1.2 million bpd of Libyan output hit
* Saudi Arabia in talks with European refiners on supplies
* Coming up: U.S. preliminary Q4 GDP, 8:30 a.m. EST Friday (Updates throughout)
By Gene Ramos and Matthew Robinson
NEW YORK, Feb 24 (Reuters) - Oil sank from 2-1/2-year highs near $120 a barrel on Thursday in a late-day rout, dragged down by an unsubstantiated rumor Muammar Gaddafi had been shot and Saudi Arabia's assurances it can counter Libyan supply disruptions.
A U.S. official said Washington had no reason to believe the Libyan leader was dead after the rumor swept through oil markets and sent prices tumbling more than $2 a barrel just before settlement. [
]Prices surged in early activity on news the Libyan revolt had caused large disruptions in the OPEC nation's oil supplies -- potentially up to three-quarters of output -- though the scale of the loss could not be confirmed. [
]Markets had earlier eased on news top OPEC exporter Saudi Arabia was in talks with European refiners affected by the disruption. [
]Brent crude <LCOc1> hit $119.79 a barrel -- the highest since August 2008 -- in early activity then dropped to $110.51 late, marking the widest trading range for the benchmark since September 2008. Brent settled up 11 cents at $111.36 a barrel, dropping more than $1 in post-settlement activity.
U.S. crude <CLc1> settled down 82 cents at $97.28 a barrel, after touching $103.41, the highest since September 2008.
Brent's performance pushed its premium to U.S. oil, which has been weighed down by high inventories at the Cushing, Oklahoma delivery point for the New York Mercantile Exchange's U.S. oil contract, out more than a dollar to over $14 a barrel. <^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Graphics on crude prices, volumes and outlook:
http://link.reuters.com/pab38r
http://link.reuters.com/nab38r
US oil price rise graphic: http://link.reuters.com/byv28r
Unrest in Mideast, N. Africa: [
]Analysis on impact on Libyan oil sector: [
]Factbox on Libyan oil and gas: [
]Interactive factbox http://link.reuters.com/puk87r
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Further pressure on prices came after the International Energy Agency again called on OPEC to draw on excess oil production capacity if required to counter Libyan supply losses. [
]The IEA estimates the unrest has cut off 500,000 to 750,000 barrels per day (bpd) of Libyan output. Italian oil company ENI <ENI.MI>, the biggest foreign operator, estimated 1.2 million bpd of the country's 1.6 million bpd had been shut down as international firms pull out workers.
Options trade volumes for the New York Mercantile Exchange's U.S. oil contract hit a record on Wednesday as the unrest sent prices higher, with traders saying bets were being laid for a spike to $120 a barrel by April. [
]While traders focused on Libya, some support also came after U.S. Energy Information Administration data showed a lower-than-expected build in domestic crude inventories and hefty drawdowns in gasoline and distillate stocks last week. [
] (Reporting by Matthew Robinson, Gene Ramos, Selam Gebrekidan, David Sheppard, Janet McGurty, Jeffrey Kerr in New York; Christopher Johnson, Nia Williams, Emma Farge, Claire Milhench and Dmitry Zhdannikov in London; Editing by Dale Hudson)