Canadian Superior Energy Inc. ("Canadian Superior" or the "Company") (TSX:SNG - News)(AMEX:SNG - News) announced today that it has received from BG International Limited ("BGI") a notice of election regarding BGI's right of first refusal dated June 30, 2009 in respect of the agreement of purchase and sale dated June 1, 2009 between Canadian Superior and Centrica Resources Limited (the "Centrica Agreement"). Information regarding the Centrica Agreement can be found in the news release of the Company dated June 2, 2009. BGI's right of first refusal with respect to the Company's interest in Block 5(c) arises pursuant to a joint operating agreement among Canadian Superior, BGI and Challenger Energy Corp.