Nexen Invites You to Attend Our New York Investor Day- December 1, 2011

CALGARY, ALBERTA--(Marketwire - Nov. 8, 2011) - Nexen Inc. invites you to attend its 2011 Investor Day on Thursday, December 1, 2011 in New York City. Marvin Romanow, President and CEO, and members of Nexen's management team will host the event, 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.

At the event, Nexen's senior leadership will provide a forward-looking overview of our operations, growth initiatives and strategy through a series of presentations, after which there will be an opportunity for small-group breakout sessions and detailed Q&A with Nexen's broader executive management team.

Date: December 1st, 2011

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

If you are interested in attending the event, please contact Nexen's Investor Relations team for details.

All presentations will be webcast at www.nexeninc.com.

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 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. We add value for shareholders through successful full-cycle oil and gas exploration and development, and leadership in ethics, integrity, governance and environmental stewardship.