* Dollar broadly weaker, supportive to commodities
* Lavera refinery workers join French strike, says union
* Coming Up: U.S. weekly initial jobless claims; 1230 GMT (Updates prices, adds quote)
By Alex Lawler
LONDON, Oct 7 (Reuters) - Oil rose towards $84 a barrel on Thursday, within sight of a five-month high, supported by expectations central banks will ease monetary policy to shore up sluggish economies and as a French oil port strike widened.
A falling U.S. dollar, linked to the expected inflow of fresh dollars into the economy, has spurred money flows into oil and other commodities. The dollar was down almost 0.3 percent against a basket of currencies. <.DXY>
"It's still the same story -- purely driven by financial markets, particularly the falling U.S. dollar which pushes up commodity prices in dollar terms across the board," said Carsten Fritsch, analyst at Commerzbank in Frankfurt.
U.S. crude <CLc1> for delivery in November rose 42 cents to $83.65 a barrel by 1029 GMT. ICE Brent <LCOc1> added 32 cents to $85.38.
Oil in New York traded as high as $84.09 on Wednesday, the highest since May 4. Gold set another record high on Thursday, while the weak dollar also boosted base metals with copper trading near a 26-month high. [
]French port workers, in their 11th consecutive day of strike, were blocking dozens of crude and oil product vessels, threatening the idling of the six French refineries dependent on the hub.
The dispute has supported European oil products prices and the wider oil market. Workers at the 207,000-barrel-per-day Lavera plant voted to join the strike, CGT union officials said on Thursday. [
]"It will have a very strong impact on the supply of oil products," said Christophe Barret, an oil analyst at Credit Agricole. "I think it is one of the main factors supporting product and crude oil prices."
QE2
The prospect of a second round of U.S. quantitative easing, known as QE2, hangs in part on U.S. employment reports, with weekly statistics due on Thursday and monthly data on Friday.
In a precursor of the monthly jobs figures, ADP's national employment report on Wednesday said private employers in the U.S. cut 39,000 jobs in September, versus expectations for an increase. [
]Meetings of the European Central Bank and Bank of England on Thursday will be watched for any hint that, like the Federal Reserve and Bank of Japan, policymakers are warming up to using newly printed money to buy assets.
The rally in oil prices may be close to running its course for now, according to some technical indicators. U.S. crude's relative strength index at 72 is in overbought territory, which can indicate a pullback is coming.
"No doubt, many sectors are overbought and so the upside response is looking more sluggish, but we think the more likely variable has to do with nervousness ahead of the non-farm payroll number out on Friday," MF Global commodities analyst Edward Meir said in a report.
Also helping oil's rise was the drop in U.S. fuel inventories reported on Wednesday. Stocks of gasoline and distillates fell more than expected, while crude oil supplies rose more than forecast. [
] (Reporting by Alejandro Barbajosa and Alex Lawler; Editing by Keiron Henderson and Jon Hemming)