Stocks Seen Steady Ahead of Oil, GDP Data  NEW YORK (Reuters) - U.S. stocks looked to open little  changed on Wednesday, a day after staging a late rally on heavy  machinery maker Caterpillar Inc.'s &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=CAT.N target=/stocks/quickinfo/fullquote"&gt;CAT.N&lt;/A&gt; raised sales  forecast, but high oil prices will remain on investors' minds  ahead of U.S. crude inventories data.