* Commodity markets focus still on dollar after G20 accord
* Dollar slumps, then pares loss, oil seesaws with dollar
* Coming Up: U.S. API oil data on Tuesday, 4:30 p.m. EDT
(Recasts, updates prices, market activity to settlement)
By Robert Gibbons
NEW YORK, Oct 25 (Reuters) - U.S. oil prices rose on Monday, up a second straight session on the weaker dollar and stronger equities after disappointing results from a Group of 20 meeting reinforced expectations the Federal Reserve will act to support a sputtering economic recovery.
Trading was choppy and oil closed well under its session high of $83.28. Crude even turned negative when the dollar pared losses, but got a late boost when Greece's central bank governor said the worst was over for the country's banks. [
]U.S. crude for December <CLc1> delivery rose 83 cents, or 1.02 percent, to settle at $82.52 per barrel.
Trading volume was thin for a second straight session. With about 30 minutes left in post-settlement trading, volume totaled 464,508 lots -- well below the 250-day average of 663,534 lots, though up from Friday's total of 388,105.
In London, ICE Brent December crude <LCOc1> rose 58 cents, or 0.7 percent, to settle at $83.54 a barrel.
The comments from Greece, "could signal to the market that the Greek saga is really over. It really cements the idea that the dollar could move lower (against the euro) from here. As a result the market's back to selling the dollar and buying commodities," said Phil
The dollar fell broadly, slumping to a 15-year low against the yen, with the euro trading above $1.40 intraday, as investors sold dollars after the G20 agreement to shun competitive currency devaluations. [
]The dollar pared losses against the euro after better-than-expected U.S. September existing home sales data, with the dollar index <.DXY> bouncing off its session low. [
]U.S. stocks rose as the falling dollar and expectations of economic stimulus from the U.S. Federal Reserve prompted investors to pick up riskier assets. [
]"There was a view that the G20 meeting might result in some stabilization and accountability. But the meeting achieved nothing and paves the way for the coming easing regime by the Federal Reserve," said John Kilduff, partner at hedge fund Again Capital LLC in New York.
The Federal Reserve is expected to launch a second round of asset purchases at its Nov. 2-3 meeting, a process intended to push down U.S. interest rates.
Expectations are that it will make the dollar less attractive than higher-yielding currencies. A weak dollar can raise the price of oil by making it less expensive for buyers with other currencies and by attracting investors wanting better returns expected in commodities.
Workers at most of France's refineries voted to continue striking over pensions, but three voted to end action, union officials said. [
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Map of fuel shortages in France:
http://link.reuters.com/hut69p
Map showing refineries supplied from Fos-Lavera:
http://r.reuters.com/zar46p
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Oil traders continued to watch the potential for weather disruption to Gulf of Mexico output from the remnants of Hurricane Richard, which was downgraded to a tropical depression over Mexico as it headed into the Gulf of Mexico.
Mexico's state run oil company Pemex said the system would not affect the country's offshore production. [
]INVENTORIES
Oil investors will give some attention to weekly reports on U.S. oil inventories. A Reuters survey of analysts on Monday yielded a forecast for crude stocks to be up 1.4 million barrels in the week to Oct. 22. [
]Total distillate stocks, including diesel fuel and heating oil, were expected to have fallen, while gasoline stocks were estimated to have moved up slightly, only 500,000 barrels.
The industry group American Petroleum Institute will release its report on Tuesday at 4:30 p.m. EDT (2030 GMT) on Tuesday. The government's report will follow on Wednesday morning. (Additional reporting by Gene Ramos and David Sheppard in New York, Alex Lawler in London and Alejandro Barbajosa in Singapore; Editing by David Gregorio)