CALGARY, ALBERTA--(Marketwire - Nov. 28, 2011) - Nexen Inc. will hold its 2011 Investor Day on Thursday, December 1st, 2011. Marvin Romanow, President and CEO, and members of Nexen's management team will host an investor day webcast providing an update on our strategies and opportunities in our conventional assets and our unconventional assets (oil sands and shale gas) along with details of our 2012 budget following our budget press release at about 3:00 a.m Mountain Time on November 29th, 2011.

Date: December 1st, 2011

Time: 7:15 a.m. Mountain Time (9:15 a.m. Eastern Time)

All presentations will be webcast. Links to the audio webcast and presentation slides will be available at www.nexeninc.com. We recommend users access the webcast approximately 10 minutes before the scheduled start time. The webcast will be archived under the Investors' section of 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. Nexen is focused on three growth strategies: oil sands and shale gas in Western Canada and conventional exploration and development primarily in the North Sea, offshore West Africa and deepwater Gulf of Mexico. Nexen adds value for shareholders through successful full-cycle oil and gas exploration and development, and leadership in ethics, integrity, governance and environmental stewardship.

Kim Woima, CA
Manager, Investor Relations
(403) 699-5821

or

Nexen Inc.
801 - 7th Ave SW
Calgary, Alberta, Canada T2P 3P7
www.nexeninc.com