June 2, 2009

Effective immediately, the common shares of Calstar Oil & Gas Ltd.("CLG") are suspended from trading on CNSX for failure to comply with Exchange requirements.

The common shares, currently halted, will remain suspended until further notice.

For further information please contact Radhika Ramkarran at (416) 572-2000 X 2435 or E-mail: radhika.ramkarran@cnsx.ca