AAON, Inc. (AAON) President and Chief Executive Officer to Ring the NASDAQ Stock Market Closing Bell


ADVISORY, Dec. 19, 2007 (PRIME NEWSWIRE) --



 What:
 Norm Asbjornson, President and CEO of AAON, Inc. (AAON), will preside
 over the closing bell.

 Where:
 NASDAQ MarketSite - 4 Times Square - 43rd & Broadway - Broadcast Studio

 When:
 Thursday, December 20, 2007 at 4:00 p.m. ET

 Contacts:
 Sam Neale
 Marketing Manager
 AAON
 Phone: 918.382.6339; samn@aaon.com

 NASDAQ MarketSite:
 Jolene Libretto; 646.441.5220; Jolene.Libretto@nasdaq.com

Feed Information:

The closing bell is available from 3:50 p.m. to 4:05 p.m. on uplink IA-6 C-band/transponder 17. The downlink frequency is 4040 Vertical; Audio 6.2-6.8. The feed can also be found on Waterfront fiber 1623. If you have any questions, please contact Jolene Libretto at (646) 441-5220.

Radio Feed:

An audio transmission of the closing bell is also available from 3:50 p.m. to 4:05 p.m. on uplink IA6 C band / transponder 24, downlink frequency 4180 horizontal. The feed can be found on Waterfront fiber 1623 as well.

Webcast:

A live Webcast of the NASDAQ Closing Bell will be available at: http://www.nasdaq.com/reference/marketsite_about.stm

Photos:

To obtain a hi-resolution photograph of the Market Close, please go to http://www.nasdaq.com/reference/marketsite_events.stm and click on the market close of your choice.

About AAON, Inc. (AAON):

AAON is engaged in the engineering, manufacturing, marketing and sale of residential and commercial air conditioning and heating equipment, consisting of standard, semi-custom and custom rooftop units, chillers, boilers, air handling units, make-up air units, heat recovery units, condensing units and coils.

Since the founding of AAON in 1988, AAON has maintained a commitment to design, develop, manufacture and deliver heating and cooling products to perform beyond all expectations and demonstrate the value of AAON to our customers.