* Dollar, treasuries up on Korean incident, pressure oil
* Irish debt, contagion fear pressure euro, weigh on oil
* U.S. oil inventory draw down expected, supportive to oil
* Coming up: API oil inventory data, 4:30 p.m. EST Tuesday (Recasts, updates with settlement prices and market activity)
By Robert Gibbons
NEW YORK, Nov 23 (Reuters) - Oil slipped on Tuesday in choppy trading as fears of an escalating euro zone crisis and a North Korean attack on a South Korean island triggered a rally in the dollar, though revived buying interest attracted when oil fell to a session low near $80 limited losses.
The dollar index <.DXY> posted its strongest rise in over a month as uncertainty over Ireland's willingness to adopt an austerity budget threatened to deepen the political crisis and after North Korea fired artillery at South Korea in one of the heaviest attacks since the 1953 cease fire. [
]"Markets are under pressure on North and South Korea fighting, as there seems to be a flight to dollars. Concerns about Ireland debt didn't go away. So far crude has held the $80 area," said Tom Bentz, broker at BNP Paribas Commodity Futures Inc.
Oil bounced off lows and briefly turned positive as many traders were cautious about being short ahead of the U.S. Thanksgiving holiday on Thursday and amid expectations weekly oil inventory reports will show stockpiles fell last week.
U.S. crude oil for January delivery <CLc1> fell 49 cents to settle at $81.25 a barrel. Oil bounced from an early intraday low of $80.28 and total U.S. trading volume rose from Monday, but remained 23 percent below the 30-day average.
In London, ICE January Brent crude <LCOc1> fell 71 cents to $83.25 a barrel.
"We are concluding that a portion of today's strong recovery was prompted by a renewed entry of speculative capital back into the long side following the liquidation phase of the past couple of weeks," Jim Ritterbusch, president at Ritterbusch & Associates, wrote in a note.
After weeks of whipsaw trading amid expectations over the Federal Reserve's quantitative easing policy, then fears of Chinese monetary tightening and concerns about Europe, oil prices have traded in a narrow band the past five days, with volumes slumping as the year-end approaches.
The European Union urged Ireland to adopt an austerity budget in order to receive an EU/IMF bailout. [
]German Chancellor Angela Merkel said Ireland's crisis was different to Greece's but just as worrying and the euro was in an "exceptionally serious" situation. [
].The euro plunged to a seven-week low against the dollar and fell 2 percent versus the yen on growing worries the euro zone's debt crisis could spread beyond Ireland. [
]The EU situation and the Korean incident overshadowed reports showing the U.S. economy grew faster than previously estimated in the third quarter, though existing home sales fell more than expected in October. [
]Prices showed little reaction to the release of minutes from the Fed's November policy meeting, which showed officials considered a number of options before settling on buying $600 billion in Treasuries.
World equities also fell while 10-year Treasury futures <TYc1> rose as the tensions between the two Koreas added to global economic worry. [
] [ ]OIL INVENTORIES
Oil prices received some support from the expectations that weekly oil inventory reports will show lower crude stocks.
U.S. crude oil stockpiles were expected to have fallen 2.1 million barrels in the week to Nov. 12, according to a Reuters analyst survey. [
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Map showing the location of the artillery exchange on the Korean peninsula: http://link.reuters.com/wyh76q
Graphic of the components of Reuters-Jefferies CRB Index of commodities: http://link.reuters.com/kew48n
Links to stories on Europe's debt crisis: [
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The gasoline crack spread also narrowed for a second day, falling to $5.96 intraday and U.S. gasoline futures <RBc1> also remained under pressure.
"All the refinery restarts in New York Harbor area still putting pressure on products, mostly RBOB (gasoline)," said Bentz. (Additional reporting by Gene Ramos in New York, Christopher Johnson in London and Florence Tan in Singapore; Editing by Marguerita Choy)