* After series of 27-month highs, oil back below $90
* Sell off after recent rally pressures commodities
* Dollar's bounce helps pressure oil
* Coming up: Minutes of Fed Dec. 14 meeting, 1900 GMT (Recasts, updates prices and market activity, changes byline and moves dateline from previous LONDON)
By Robert Gibbons
NEW YORK, Jan 4 (Reuters) - Oil dropped more than 2 percent on Tuesday, falling from a 27-month high as profit-taking struck the commodities complex following a series of peaks over the thin holiday trading period.
Dealers said the abrupt selling across energy, metal and agricultural markets reflected a correction in the rally that had capped 2010 rather than a sudden reversal of the optimism that made commodities the top asset class last year. Trading volume recovered to its highest levels since mid-December.
"We had an end of year run-up and now we are getting the beginning of the year sell-off," said Stephen Schork, president at the Schork Group in Villanova, Pennsylvania.
Additional pressure came from a rebound in the dollar, which turned positive on an improving U.S. economic outlook.
For a graphic see: http://r.reuters.com/ces64r
U.S. crude oil for February delivery <CLc1> fell $2.35, or 2.57 percent, to $89.20 a barrel at 11:20 a.m. EST (1620 GMT), sliding from an intraday peak of $92.07. It was the biggest one-day decline since mid-November.
In London, ICE Brent crude for February <LCOc1> fell $1.79 to $93.05 a barrel, well off an early $95.74 peak.
Copper and gold both fell more than 2 percent while cocoa and sugar fell by around 3 percent in the broadest retreat in commodity markest since a mid-November rout. But U.S. stock indexes were little changed as optimism over the economic outlook was offset by a decline in consumer stocks. [
]The retreat by U.S. oil futures comes after they settled at a 27-month peak above $91 a barrel on Monday as U.S. and European manufacturing data suggested improving economic growth that could bolster oil demand.
"Built into pricing for commodities was a premium for flight to safety," said John Kilduff, partner at Again Capital LLC in New York.
"With the economic recovery now in plain view and equities coming back into favor, that vestige of safety is losing its appeal. It's happening with oil and there's a similar free fall in precious metals."
Investors will be eyeing the Federal Open Market Committee minutes from the Dec. 14 meeting for clues on the U.S. central bank's outlook on the economy and intentions about keeping intact recent initiatives to stimulate a faltering economic recovery. The Fed minutes are due at 2 p.m. EST (1900 GMT). (Additional reporting by the New York Energy Desk, Dmitry Zhdannikov in London, Alejandro Barbajosa in Singapore, editing by Anthony Barker) (Reporting by Robert Gibbons, editing by Jonathan Leff)