* Choppy U.S. equities end slightly lower, curb oil
* Dollar index weakens, supportive to crude
* Coming up: US consumer confidence data 10 am EDT Tuesday (Recasts, updates with settlement prices, market activity)
By Robert Gibbons
NEW YORK, Sept 27 (Reuters) - U.S. oil prices edged up on Monday in choppy trading, mostly tracking equities that were buffeted by bearish concerns about euro-zone banks and a bullish flurry of merger and acquisition deals.
A late bounce kept last week's oil price gains intact. Prices had the largest weekly percentage rise since late July and an early push higher on Monday took oil prices briefly to a nearly two-week high above $77 a barrel.
Crude also took support from the weak dollar as the dollar index <.DXY> -- measuring the greenback against a basket of currencies -- slipped. Declines in the dollar can lift oil prices by making dollar-denominated crude oil cheaper for buyers using other currencies.
U.S. crude for November <CLc1> delivery edged up 3 cents, or 0.04 percent, to settle at $76.52 per barrel.
It traded in a range from $75.52 to $77.17, the highest since $77.99 on Sept. 14 when a shutdown in a pipeline carrying Canadian crude oil to the United States was boosting prices.
Monday's trading volume was light at under 535,000 lots with less than an hour of post-settlement trading left. That was well below the 30-day daily average of more than 730,000 lots.
ICE Brent November crude <LCOc1> fell 30 cents to settle at $78.57 a barrel.
"The complex spent much of the day trailing the stock market despite the fact that equity swings were comparatively small," Jim Ritterbusch, president at Ritterbusch & Associates in Galena, Illinois, said in a note.
"Assuming some equity consolidation and some associated modest fluctuations in the dollar as were evidenced today, nearby crude futures may well hang out within about a $75-77 trading range until midweek when the EIA (oil inventory data) offers up some more guidance."
A Reuters survey of 28 analysts highlighted oil's tight trading range as consensus forecasts for the fourth quarter of this year and 2011 were revised slightly lower due to weak demand from developed nations. [
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Reuters Insider - Credit Agricole discusses US crude oil
price outlook: http://link.reuters.com/tyq35p
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U.S. stocks slipped as investors paused after a four-week rally. A flurry of merger and acquisition activity fed optimism while euro-zone debt concerns kept sentiment in check. [
]Worries about euro-zone debt resurfaced after credit agency Moody's slashed the rating on some lower-grade debt of Anglo Irish Bank. [
]Oil prices posted their best weekly gain since late July last week as the dollar slumped and investors bet that the U.S. Federal Reserve will pump billions of dollars into the financial system to support a faltering economic recovery.
After the Fed last week indicated a willingness to act to support a faltering economic recovery, the Chicago Federal Reserve on Monday said its Midwest manufacturing index fell in August versus July. [
]HIGH CRUDE, PRODUCTS INVENTORIES
With Thursday's expiration of October refined products contracts approaching, refined products futures also saw volatile trading on Monday.
U.S. heating oil futures <HOc1> fell 1.06 cents to settle at $2.1753 a gallon. October gasoline futures <RBc1> managed to rise 0.17 cent to settle at $1.9488 a gallon.
U.S. total petroleum inventories have bulged, hitting their highest level last week since weekly records began in 1990, according to the Energy Information Administration. [
]U.S. crude oil, total distillate and gasoline stockpiles all remain above year-ago levels.
A Reuters preliminary survey of analysts on Monday yielded a forecast for slightly lower crude stocks last week, while product stockpiles likely edged up. [
] (Additional reporting by Joe Brock in London and Alejandro Barbajosa in Singapore; editing by Jim Marshall)