CALGARY, ALBERTA--(Feb. 20, 2009) - Nexen Inc. has filed its Annual Information Form (Annual Report on Form 10-K), containing its annual reserves disclosure. The report can be accessed electronically from:

- SEDAR at www.sedar.com

- EDGAR at www.sec.gov

- Nexen at www.nexeninc.com/investors

Shareholders may request a hardcopy of the complete audited financial statements free of charge on our website.

Nexen Inc. is an independent, Canadian-based global energy company, listed on the Toronto and New York stock exchanges under the symbol NXY. We are uniquely positioned for growth in the North Sea, Western Canada (including the Athabasca oil sands of Alberta and unconventional gas resource plays such as coalbed methane and shale gas), deep-water Gulf of Mexico, offshore West Africa and the Middle East. We add value for shareholders through successful full-cycle oil and gas exploration and development and leadership in ethics, integrity, governance and environmental protection.

Contact Info

Lavonne Zdunich, CA
Analyst, Investor Relations
(403) 699-5821
or
Nexen Inc.
801 - 7th Ave SW
Calgary, Alberta, Canada T2P 3P7
Website: www.nexeninc.com