CALGARY, ALBERTA--(Feb. 21, 2008) - 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, deep-water Gulf of Mexico, the Athabasca oil sands of Alberta, the Middle East and offshore West Africa. We add value for shareholders through successful full-cycle oil and gas exploration and development and leadership in ethics, integrity 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