* U.S. Fed cuts target for overnight interest rates
* Economic troubles dim demand outlook
* OPEC near consensus on 2 million barrels a day cut (Updates with Fed decision, prices, adds analyst quote)
NEW YORK, Dec 16 (Reuters) - Oil prices fell more than 3 percent on Tuesday as lingering worries about shrinking global energy demand countered expectations OPEC will agree to deepen supply cuts and a move by the U.S. Federal reserve to cut interest rates.
Oil ministers from the Organization of the Petroleum Exporting Countries will meet in Algeria on Wednesday, with many members calling for output cuts of up to 2 million barrels per day (bpd). [
]Russian officials said the top non-OPEC producer could reduce 320,000 bpd to give greater punch to the cartel's efforts. [
]U.S. crude <CLc1> traded down $1.46 to $43.05 a barrel at 2:39 p.m. EST (1939 GMT). London Brent crude <LCOc1> fell 10 cents to $44.50.
The U.S. Federal Reserve cut its target for overnight interest rates to zero to 0.25 percent, bringing it closer to unconventional action to lift the economy out of a year-long recession. [
]"The fact that the Fed cut rates by 75 basis points rather than the consensus of 50 points seems to indicate that perhaps the economy needs major, major overhaul that is bigger than expected earlier," said Nauman Barakat, senior vice president at Macquarie Futures USA.
"That translates into lower demand for crude oil."
Oil prices are drifting just above a four-year trough of $40.50 a barrel hit on Dec. 5 and remain down more than $100 from the July record above $147 a barrel as a financial crisis hits fuel consumption.
The market slump has raised alarm bells for OPEC nations and other big producer countries that depend on revenues from energy exports.
"OPEC won't face a bigger decision than this for some time to come," Bank of Ireland analyst Paul Harris said.
"If they don't put a floor under prices with a cut of some significance then it could have huge ramifications for the future of the oil market," he added.
The producer group expects global demand for its crude oil to fall by an average of 1.4 million bpd next year due to the downturn in the world economy. The drop in demand will be even more dramatic in the first quarter.
"In the first quarter of 2009, the demand for OPEC crude is expected to see a sharp drop of 2.3 million bpd from the same quarter in the previous year," it said in its latest monthly report on the oil market. [
]OPEC already has agreed to cut output by 2 million barrels a day at two previous meetings. But demand has fallen faster and as a result, stocks of oil are building up.
OPEC said 45 million barrels of crude oil are currently being stored at sea on oil tankers.
Crude oil stocks in top energy consumer the United States are running near the top of the five-year range and forecasters expect data to show they rose by another 300,000 barrels last week, according to a Reuters' poll ahead of the U.S. fuel inventory report due on Wednesday. [
] (Reporting by Richard Valdmanis and Matthew Robinson in New York, Ikuko Kao and Jane Merriman in London and Annika Breidthardt in Singapore; Editing by Christian Wiessner)