Maps and GPS directions to Petro HORNBY and other Petro Gas in Canada. Find your nearest Petro Gas. Download Petro Canada locations to your GPS. Customize your GPS to include every Petro Canada location across the country. Find all Petro-Canada gas stations and Certigard Service Centres. Suncor Energy Inc. now markets under both the Petro-Canada and Sunoco brands in Canada, creating the country's premier integrated energy company.