Suncor Energy is an energy company. Co.'s operations include oil sands development, production and upgrading; offshore oil and gas; petroleum refining in Canada and the U.S.; and Co.'s Petro-Canada retail and wholesale distribution networks (including Canada's Electric Highway™, a coast-to-coast network of fast-charging electric vehicle stations). Co. also conducts energy trading activities focused principally on the marketing and trading of crude oil, natural gas, byproducts, refined products and power. Co. has classified its operations into the following segments: Oil Sands, Exploration and Production, Refining and Marketing, and Corporate and Eliminations.