NEW YORK (CNN/Money) - The wait for some of this week's key economic reports could cause U.S. stocks to open flat to higher Monday.

While stock futures were slightly lower, a positive opening for stocks was indicated after taking fair value into account.

Traders anticipate that the week's economic reports this week could offer some hints about when the Federal Reserve will reconsider its policy of steady interest rate hikes.

The Producer Price Index for May is due Tuesday morning, while the Consumer Price Index is set for release Wednesday. May retail sales is due on Tuesday.

The Fed is widely expected to raise rates by a quarter percentage point at its next meeting of the Federal Open Market Committee on June 29 and 30, which would be its ninth straight rate rise and take its funds rate to 3.25 percent.

Oil prices held steady ahead of an OPEC meeting that could see the oil cartel raise its production ceiling but is unlikely to add any actual extra oil to the market. The July light crude contract fell 1 cents to $53.50 a barrel, after a 1.4 percent slide on Friday. London Brent futures, which fell over a dollar on Friday, were down 7 cents at $52.60 a barrel.

The dollar hit a nine-month high against the euro and held steady against the yen, extending recent gains after Fed chief Alan Greenspan fanned expectations of more interest rate hikes in comments before a Congressional panel last week.

Treasury prices continued the decline that began late last week, with the yield on the 10-year note rising to 4.08 percent from 4.05 percent late Friday.

Asian markets ended modestly higher, with Tokyo's Nikkei index up 0.1 percent. European markets were higher in early trading.

In corporate news, the chief executive of Lockheed Martin (Research) warned European governments not to lift the arms embargo on China, saying access to lucrative U.S. defense projects could be dependent on adhering to U.S. policy.

Also in the aerospace industry, Dow component Boeing (Research) said it received a $286 million order from European discount carrier Ryanair and indicated that it could begin delivery of a stretch version of its 747 by 2008.

For a more detailed look at the markets before the open, click here.

Last week's better-than-expected U.S. trade data and Greenspan's comments that the economy is on "firm footing," could give stocks a lift Monday.