(Adds price updates)
By Luke Pachymuthu
SINGAPORE, April 23 (Reuters) - Oil eased under $118 on Wednesday, but stayed on the boil due to a weakening dollar, supply disruptions in Nigeria and fears that a refinery strike in Scotland could hit production in the North Sea.
U.S. crude <CLc1> for June eased 18 cents to $117.89 a barrel at 0743 GMT, after the May contract expired on Tuesday at $119.37, briefly hitting an all-time peak of $119.90.
London Brent crude <LCOc1> fell 21 cents to $115.74, after touching an intraday record high of $116.75 the previous session.
Oil's strong rally in recent weeks has seen prices rise more than five-fold since 2002, as booming demand from emerging markets such as China coincided with long-term supply constraints.
China, the world's second-largest consumer, helped to further spur the price of oil, after new government data showed demand rose 8 percent in March from a year earlier, the quickest pace in 19 months as refiners boosted imports ahead of the Olympics. [
]"We are seeing no evidence of demand destruction even as prices keep rising," said Jim Ritterbusch, president of Ritterbusch and Associates in Galena, Illinois.
"OPEC is still not willing too pump more oil onto the market, and to add to the situation, there is no significant production increase beyond OPEC," he added.
A softer dollar, which fell to new lows against the euro on Tuesday, has also helped to boost dollar-denominated commodities such as oil and attracted speculative inflows from hedge funds. [
]Pipeline attacks in OPEC member Nigeria last week shut 169,000 barrels per day (bpd) of Bonny Light production, forcing Royal Dutch Shell Plc <RDSa.L> to declare force majeure on crude exports. [
]Nigerian rebels also attacked two Shell oil pipelines in the Niger Delta on Monday. [
]Management and union officials are in talks to avoid a planned two-day strike at Scotland's Grangemouth refinery, which could lead to shortages of auto fuel, especially diesel. North Sea oil supplies could also be disrupted by a plant shutdown, as the pipeline bringing North Sea Forties crude to Britain ends at the refinery, refinery operator Ineos said. [
]Oil producers in Rome for the International Energy Forum said they could do nothing to halt oil's rally and the world might have to live with even higher prices if it wants supplies for the future. [
]President George W. Bush on Tuesday said he was concerned about record high crude oil and gasoline prices, and said the United States must tap an Alaskan wildlife refuge to boost supply. [
]Gasoline stocks in the United States were projected to have dropped for the sixth straight week on lower refinery production due to unplanned shutdowns, maintenance and run cuts, said analysts polled ahead of the release of government data on Wednesday. (Editing by Ramthan Hussain)