Petro-Canada to Participate in the Scotia Capital Canadian International E&P Conference

CALGARY, ALBERTA -- (MARKET WIRE) -- 06/03/08 -- Andrew Stephens, senior vice-president, corporate relations will present at the Scotia Capital Canadian International E&P Conference in Toronto, Ontario on Thursday, June 5, 2008 at 9:00 a.m. eastern time (7:00 a.m. mountain time). The presentation will include information on Petro-Canada's International business strategy.

A live audio webcast of the presentation and an electronic copy of the slides will be available on the Petro-Canada website: http://www.petro-canada.ca/en/investors/93.aspx. A postview of the audio webcast will be available approximately one hour after the webcast for 180 days.

Petro-Canada is one of Canada's largest oil and gas companies, operating in both the upstream and the downstream sectors of the industry in Canada and internationally. We create value by responsibly developing energy resources and providing world class petroleum products and services. Petro-Canada is proud to be a National Partner to the Vancouver 2010 Olympic and Paralympic Winter Games. Our common shares trade on the Toronto Stock Exchange (TSX) under the symbol PCA and on the New York Stock Exchange (NYSE) under the symbol PCZ.

Contacts: Investor and analyst inquiries: Ken Hall, Investor Relations Petro-Canada, Calgary (403) 296-7859 Email: investor@petro-canada.ca

Media and general inquiries: Victoria Barrington, Corporate Communications Petro-Canada, Calgary (403) 296-8589 Email: corpcomm@petro-canada.ca Website: www.petro-canada.ca

2008-06-03 19:21:54 0376789 MARKETWIRE