UAL Corp. Seeks Bankruptcy Exit Financing  CHICAGO (Reuters) - United Airlines &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=UALAQ.OB target=/stocks/quickinfo/fullquote"&gt;UALAQ.OB&lt;/A&gt; has begun  reaching out to potential lenders for financing to leave  bankruptcy, the company said on Friday.