APCO Argentina Inc. (APAGF) Chairman and CEO to Ring The NASDAQ Stock Market Opening Bell


MEDIA ADVISORY, July 5, 2006 (PRIMEZONE) --



 What:
 Ralph Hill, Chairman & CEO of APCO Argentina Inc. (APAGF)  will 
 preside over the opening bell.

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

 When:
 Thursday July 6th, 2006 at 9:30 a.m. EDT

 Contacts:
 Julie Gentz
 918-573-3053
 julie.gentz@williams.com

 NASDAQ MarketSite:
 Stephanie Lowenthal; 646.441.5220

Feed Information:

The opening bell is available from 9:20 a.m. to 9:35 a.m. on uplink IA-5 C-band/transponder 14. The downlink frequency is 3980 horizontal; audio: 6.2/6.8. The feed can also be found on Waterfront fiber 1623. If you have any questions, please contact Stephanie Lowenthal at (646) 441-5220.

Photos:

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

About APCO Argentina Inc. (APAGF):

Apco is an oil and gas exploration and production company with interests in six oil and gas concessions and one exploration permit in Argentina. Its principal business is a 52.85 percent participation in a joint venture engaged in the exploration, production and development of oil and gas in the Entre Lomas concession located in the provinces of Rio Negro and Neuquen in southwest Argentina. Apco's headquarters are located in Tulsa, Oklahoma with a branch office in Buenos Aires, Argentina.


Tags