* U.S. oil inventories rose for 2nd straight week -poll
* For a short-term technical outlook: [
]* Coming Up: API inventory report; 2030 GMT
By Alejandro Barbajosa
SINGAPORE, April 27 (Reuters) - Oil fell for a second day on Tuesday to trade below $84 as forecasts for repeated increases in U.S. inventories rekindled concerns of oversupply, while Greek debt woes and the dollar's safe haven appeal also weighed.
U.S. crude, gasoline and distillate stockpiles probably rose for a second straight week last week, a Reuters survey showed on Monday. [
]Investors sought refuge in the dollar on Monday as risk aversion tied to Greece's debt crisis and bailout reduced the appeal of commodities as an investment. But the greenback was slightly weaker against a basket of currencies on Tuesday. [
]"A lot of the weakness has to do with Greece and the strengthening dollar, but the more concerning thing is the supply situation in the U.S.," said Ben Westmore, a commodities analyst at the National Australia Bank. "It's a supply side phenomenon."
U.S. crude for June delivery <CLc1> declined 53 cents to $83.67 a barrel by 0321 GMT, while ICE June Brent crude <LCOc1> was trading almost $3 higher, down 20 cents at $86.63.
Crude stockpiles at the Cushing, Oklahoma delivery point were above 34 million barrels in the week ended April 16, close to the level where they depress the value of West Texas Intermediate (WTI), the U.S. benchmark, relative to Brent.
"The big thing that is weighing in the market is the stocks in Cushing," Westmore said. "There have been pretty big increases over the past few weeks."
Prompt crude prices are trading at growing discounts to contracts for later delivery, steepening a market structure known as contango. The June WTI contract was trading about $2.50 below the July contract, bolstering the incentives to store crude.
U.S. crude stockpiles increased by 400,000 barrels in the week to April 23, the Reuters poll showed, while distillates including heating oil and diesel were expected to have risen by 1.3 million barrels and gasoline by 500,000 barrels.
The industry-funded American Petroleum Institute will release its inventory report on Tuesday at 2030 GMT, while government statistics from the U.S. Energy Information Administration's will follow on Wednesday at 1430 GMT.
Traders will look for further clues to economic recovery from the U.S. April consumer confidence data on Tuesday, as well as the outcome of the Federal Reserve's two-day, policy-setting meeting starting the same day.
Uncertainty over plans to curb speculation in energy markets could fuel oil price volatility this week, after the Commodity Futures Trading Commission's public comment period ended on Monday.
Some of the biggest players in U.S. energy markets have told the CFTC its plans to reduce speculation are misguided and will drive investors to overseas and unregulated markets. [
]The position limit proposal stems from a spike in oil futures prices to a record of more than $147 a barrel in 2008. Prices reached an 18-month high above $87 a barrel on April 6.
A Reuters poll on Monday showed analysts expect U.S crude oil to average $81.06 a barrel in 2010. They cited growing demand in emerging economies, especially China. [
]"Although a lot of economies have fiscal challenges ahead, in themselves the events in Greece won't have a big impact on global demand," Westmore said. (Editing by Clarence Fernandez)