By Sara Sjolin, MarketWatch

Greece also lifts sentiment

LONDON (MarketWatch) -- Wall Street was poised for another positive session on Wednesday, with futures nudging higher ahead of a raft of economic data and the release of minutes from the Federal Reserve's January meeting.

Hopes that Greece will reach a debt deal with its international creditors also helped lift sentiment.

Futures for the Dow Jones Industrial Average (DJH5) added 17 points, or 0.1%, to 18,017, while those for the S&P 500 index (SPH5) climbed 0.90 point to 2,096.80. Futures for the Nasdaq 100 index (NDH5) put on 4.75 points, or 0.1%, to 4,386.50.

The gains follow slightly positive session on Tuesday, when reports that Greece may ask for a six-month loan extension helped boost sentiment. The request is expected on Wednesday, and the conditions of such an agreement are reportedly under negotiation. Germany has already said it won't accept a mere loan agreement without a formal extension of Greece's current bailout program, including the strict austerity conditions attached. The Global X FTSE Greece 20 ETF (GREK) dropped 3.8% ahead of the bell.

Data: Kicking off an action-packed data day, the producer-price index and housing-starts data come out at 8:30 a.m. Eastern Time.

Economists polled by MarketWatch expect producer prices to have dropped 0.5% in January month-on-month, down from a 0.3% fall in December. For housing starts, estimates are for 1.07 million in January, up slightly from 1.06 million the prior month.

At 9:15 a.m. Eastern Time, industrial production is forecast to show a 0.4% improvement in January, after a 0.1% drop in December. Capacity utilization comes out at the same time, expected to have risen to 79.9% in January, from 79.7% the previous month, according to MarketWatch estimates.

FOMC minutes: The minutes from the Federal Open Market Committee's meeting on Jan. 27-28 are due at 2 p.m. Eastern, in the middle of the U.S. trading day. At the meeting, Federal Reserve policy makers told investors they would be "patient" about hiking short-term interest rates, and market participants will scrutinize the minutes to see whether any of the top Fed officials actually wanted to drop that phraseology.

Earnings: Before the opening bell, several companies report: DISH Network Corp.(DISH) is expected to post quarterly earnings of 43 cents a share, according to a FactSet survey of analysts.

Virgin America Inc.(VA) is seen reporting quarterly per-share profit of 79 cents.

Hilton Worldwide Holdings Inc.(HLT) is forecast to report quarterly earnings of 18 cents a share.

As for companies reporting after the markets close, SolarCity Corp.(SCTY) is expected to post a quarterly loss of $1.27 a share.

Marathon Oil Corp.(MRO) is seen delivering quarterly earnings of 4 cents a share.

Marriott International Inc.(MAR) is forecast to report quarterly profit of 65 cents a share.

Movers and shakers: Varonis Systems Inc.(VRNS) jumped 11% ahead of the bell after the IT company late Tuesday reported a 36% rise in full-year revenues.

Rackspace Hosting Inc.(RAX) fell 2.8% in premarket action after the cloud-computing company late Tuesday posted a sharp increase in profit, but predicted first-quarter revenue will be below Wall Street estimates.

Other markets: European stock markets moved firmly higher, boosted by optimism that the Greek debt drama could soon come to an end. Asian markets also got a lift from Greece and closed with gains.

Crude-oil prices (CLH5) fell more than 1%, while metals prices were mostly lower as well. The dollar (DXY) rose against most other major currencies.

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