Addax Petroleum First Quarter 2009 Conference Call

CALGARY, Canada - Addax Petroleum Corporation (TSX: AXC and LSE: AXC) (”Addax Petroleum” or the “Corporation”) will announce its financial results for the quarter ended March 31, 2009 on Wednesday, May 13, 2009, and will discuss its financial results in a conference call on Wednesday, May 13, 2009 at 11:00 a.m. Eastern Time / 4:00 p.m. London, U.K. time. Mr. Jean Claude Gandur, President and Chief Executive Officer, Mr. James Pearce, Chief Operating Officer, and Mr. Michael Ebsary, Chief Financial Officer, will discuss the Corporation’s most recent financial and operating results.

Conference call details: Date: Wednesday, May 13, 2009 Time: 11:00 a.m. Eastern Time / 4:00 p.m. London, U.K. Time To listen to the conference call, please call one of the following: Toronto: (416)-644-3416 Toll-free (Canada and the US): 1-800-733-7560 Toll-free (UK): 00-800-2288-3501 Toll-free (Switzerland): 00-800-2288-3501

About Addax Petroleum:

Addax Petroleum is an international oil and gas exploration and production company with a strategic focus on West Africa and the Middle East. Addax Petroleum is one of the largest independent oil producers in West Africa and has increased its crude oil production from an average of 8.8 Mbbl/d for 1998 to an average of 136.5 Mbbl/d for 2008. Further information about Addax Petroleum is available at www.addaxpetroleum.com or at www.sedar.com.

For further information: Mr. Craig Kelly, Investor Relations, Tel.: +41(0)22-702-95-68, craig.kelly@addaxpetroleum.com; Mr. Chad O’Hare, Investor Relations, Tel.: +41(0)22-702-94-10, chad.o’hare@addaxpetroleum.com; Ms. Marie-Gabrielle Cajoly, Press Relations, Tel.: +41(0)22-702-94-44, marie-gabrielle.cajoly@addaxpetroleum.com; Mr. Nick Cowling, Press Relations, Tel.:+1-416-934-8011, nick.cowling@cossette.com; Mr. James Henderson, Press Relations, Tel.: +44(0)20-7743-6673, james.henderson@pelhampr.com; Mr. Mark Antelme, Press Relations, Tel.: +44(0)20-3178-6242, mark.antelme@pelhampr.com

Source: Addax Petroleum Corporation

For further information: Mr. Craig Kelly, Investor Relations, Tel.: +41(0)22-702-95-68, craig.kelly at addaxpetroleum.com; Mr. Chad O’Hare, Investor Relations, Tel.: +41(0)22-702-94-10, chad.o’hare at addaxpetroleum.com; Ms. Marie-Gabrielle Cajoly, Press Relations, Tel.: +41(0)22-702-94-44, marie-gabrielle.cajoly at addaxpetroleum.com; Mr. Nick Cowling, Press Relations, Tel.:+1-416-934-8011, nick.cowling at cossette.com; Mr. James Henderson, Press
Relations, Tel.: +44(0)20-7743-6673, james.henderson at pelhampr.com; Mr. Mark Antelme, Press Relations, Tel.: +44(0)20-3178-6242, mark.antelme at pelhampr.com