AAON Fourth Quarter and Full Year 2007 Results Call

| Source: AAON AAON

TULSA, OK--(Marketwire - March 5, 2008) - AAON, Inc. (NASDAQ: AAON) -- A question and answer session will follow a brief presentation by our President, Norman Asbjornson. The entire call should last about 45 minutes.

The call will cover: 

--  Fourth Quarter Performance and Full Year for the period ended
    12/31/2007.
--  Recent Events
--  Future Outlook
    

     Date of Call:  Wed. March 12, 2008
     Time:          4:15 p.m. (Eastern Time)
     Telephone #:   Toll Free 1-877-852-6579

     Rebroadcast (Available through March 19, 2008)

               Toll Free: 1-888-203-1112
               PIN Code: 5110264

AAON looks forward to your attendance at the call.

Contact Information: For Further Information: Jerry R. Levine Ph: (914) 244-0292 Fax: (914) 244-0295