Nexen Inc. (TSX, NYSE: NXY) has received approval from the Committee on Foreign Investment in the United States (CFIUS) with respect to the proposed acquisition of Nexen by CNOOC Ltd., and now has all of the requisite approvals to proceed to close.

The transaction is expected to close the week of February 25, 2013 and remains subject to customary closing conditions.

The letter of transmittal for the acquisition of common shares will be mailed to registered shareholders shortly and is also available on Nexen's website. For more information common shareholders may visit www.nexeninc.cominvestorinfo.