Suncor Energy Inc.SU.TO

Suncor Energy, established in 1917 and based in Calgary, is an integrated energy firm focused on developing Canada’s Athabasca oil sands. Its operations span exploration, production, refining, and marketing. Through the Petro-Canada brand, it distributes petroleum and petrochemicals. Key divisions include Oil Sands (bitumen extraction/upgrading), Exploration and Production (offshore/onshore global assets), and Refining and Marketing. The firm also manages wind farms and trades crude, gas, and power.