SNG Canadian Superior Energy,

Dyer & Berens LLP (www.DyerBerens.com) today announced that it has filed a class action lawsuit in the United States District Court for the Southern District of New York on behalf of purchasers of the common stock of Canadian Superior Energy Inc. ("Canadian Superior" or the "Company") (NYSE Amex: SNG) between January 14, 2008 and February 17, 2009, inclusive (the "Class Period").

If you wish to serve as a lead plaintiff, you must move the court no later than February 8, 2010. If you wish to discuss this action or have any questions concerning this notice or your rights or interests, please contact plaintiff's counsel, Jeffrey A. Berens, Esq., at (888) 300-3362, (303) 861-1764, Ext. 302, or via email at jeff@dyerberens.com. Any member of the putative class may move the court to serve as lead plaintiff through counsel of their choice, or may choose to do nothing and remain an absent class member.

The complaint alleges that, throughout the Class Period, defendants failed to disclose material adverse facts about the Company's true financial condition, business and prospects. On August 16, 2007, Canadian Superior and Challenger Energy jointly issued a press release announcing that BG International Limited ("BG") entered into a farm-in agreement ("Farm-In Agreement") and joint operating agreement ("Joint Operating Agreement") with Canadian Superior to participate in the exploration drilling and development of the Intrepid Block 5(c) (the "Joint Venture"). Specifically, the complaint alleges that defendants failed to disclose: (i) that the discovered reserves for Intrepid Block 5(c) were below the economic threshold for development; (ii) that Canadian Superior had notified BG of its intention to commence a corporate sale in November 2008 so that it could overcome the financial constraints that were preventing it from meeting its funding obligations under the Joint Operating Agreement; (iii) that Canadian Superior had violated the terms of the Joint Operating Agreement with BG, thus potentially endangering its interest in the Joint Venture; (iv) that Canadian Superior failed to timely pay Maersk, the drilling operator, and potentially other contractors, thereby jeopardizing the operation of the Joint Venture; and (v) as a result of the foregoing, defendants lacked a reasonable basis for their positive statements about the Company, its prospects and earnings growth.

On February 12, 2009, Canadian Superior issued a press releasing announcing the "appointment, upon the application of BG of an interim Receiver of its participating interest in Intrepid Block 5(c). Pursuant to the Court Order, the Receiver, in conjunction with BG, will operate the property and conduct the flow testing of the Endeavour well which Canadian Superior believes will validate its operations to date." In response to this announcement, shares of the Company's stock fell $0.40 per share, or 44%, from a close of $0.90 per share on February 11, 2009, the last trading date before the announcement, to close at $0.50 per share, on extremely heavy trading volume. Then, on February 17, 2009, Canadian Superior announced that it had received a demand letter from the Canadian Western Bank for repayment of all amounts outstanding under Canadian Superior's $45 million credit facility with the bank by February 23, 2009. The Company also announced that it was in discussions with alternative lenders. In response to this announcement, shares of the Company's stock fell an additional 30%.

Plaintiff seeks to recover damages on behalf of Canadian Superior investors. The plaintiff is represented by Dyer & Berens LLP, which has expertise in prosecuting investor class actions involving financial fraud. The firm's extensive experience in securities litigation, particularly in cases brought under the Private Securities Litigation Reform Act, has contributed to the recovery of hundreds of millions of dollars for aggrieved investors. For more information about the firm, please go to www.DyerBerens.com.

Contact: Jeffrey A. Berens Dyer & Berens LLP 303 East 17th Avenue, Suite 300 Denver, CO 80203 Tel: (888) 300-3362 or (303) 861-1764, Ext. 302 Email: Email Contact