* Dollar stronger vs euro, currency basket, pressures oil
* OPEC signals no output policy change likely at meeting
* Coming Up: Fed meeting minutes from Sept. 21; 2 p.m. EDT (Recasts, updates prices, market activity, changes byline and moves dateline from LONDON)
By Robert Gibbons
NEW YORK, Oct 12 (Reuters) - Oil prices slipped for a second day on Tuesday as OPEC signaled it will keep output targets steady when the group meets this week and with the stronger dollar also providing price pressure for oil.
Strikes affecting French ports and eight of the country's 12 oil refineries cut fuel output and pushed up oil products prices, helping to limit crude oil's price slide.
Trading was choppy in the oil and equities markets ahead of the release of minutes from the most recent Federal Reserve policy meeting.
U.S. crude for November <CLc1> delivery fell 49 cents, or 0.6 percent, to $81.72 per barrel by 12:31 a.m. EDT (1631 GMT), having traded from $80.88 to $82.33. In London, ICE Brent November crude <LCOc1> fell 32 cents, or 0.38 percent, to $83.40 a barrel.
The U.S. dollar seesawed near flat against the euro after strengthening earlier on a short-covering bounce as investors awaited the Fed minutes for clues on the central bank's stance toward purchasing more assets to stimulate the economy. [
] The dollar index <.DXY> strengthened."The stronger dollar is weighing on crude prices," said Stephen Schork, president at the Schork Group in Villanova, Pennsylvania.
A stronger dollar renders dollar-denominated commodities more expensive for buyers using other currencies and strengthens the value of greenbacks paid producers.
The minutes of the Fed's meeting on Sept. 21 will be examined for indications on the likely extent of a second round of quantitative easing, commonly referred to as QE2, although many analysts said the oil market had already priced this in.
"We believe the actual onset of QE2 will further lift oil prices," Michael Lo from Nomura Global Equity Research said in a note. "However, given the different starting points for oil prices and economics between QE1 and QE2, we believe the impact of QE2 will be less pronounced."
OPEC MEETS THURSDAY
Saudi Arabian Oil Minister Ali al-Naimi said he was happy with the oil market as he arrived in Vienna on Monday for Thursday's meeting of the Organization of the Petroleum Exporting Countries, the first in seven months.
He described crude prices between $70 and $80 as "ideal." [
]On Tuesday, a senior Gulf OPEC delegate told Reuters that oil prices slightly above $80 a barrel were not a threat to the world economy, although he declined to say at what point the oil price could affect recovery. [
]OPEC has had the same official production ceiling since December 2008, but compliance with production targets has slipped to 56.5 percent, according to Reuters calculations.
The group said in its monthly report there was a broad consensus that oil prices around their current range have helped support economic recovery and promote industry investment. [
] [ ]FRENCH STRIKES
French oil refineries cut output as a nationwide strike further choked supplies. Workers at major ports and eight out of 12 French refineries were on strike. [
]A spokesman for French oil-sector lobby UFIP said that French fuel stations could face shortages in just over a week, if an oil port strike continues. [
]A Reuters poll on Monday yielded a forecast for U.S. crude stockpiles to be up for a second straight week, adding 1.3 million barrels in the week to Oct. 8 due to higher imports. [
]Industry group the American Petroleum Institute will issue its oil inventory report on Wednesday at 4:30 p.m. EDT (2030 GMT), delayed a day by Monday's U.S. Columbus Day holiday.
The government's report from the U.S. Energy Information Administration is due on Thursday at 11 a.m. EDT (1500 GMT), also delayed a day by the holiday. (Additional reporting by Zaida Espana and Joe Brock in London and Alejandro Barbajosa in Singapore; Editing by Walter Bagley)