The term 'Canadian Brand of Gas' can be summarized by the crossword solution 'Esso'. Esso is a Canadian-based multinational oil and gas company that has been in operation since 1912. It is one of the largest oil companies in the world, and is the largest producer of petroleum products in Canada. Esso operates more than 4, 000 service stations across Canada, and is a major supplier of gasoline, diesel, and other petroleum products.