Suncor is Canada's largest integrated energy company. Its core business spans the full oil value chain: mining and extracting bitumen from Alberta's Athabasca oil sands, upgrading that bitumen into synthetic crude oil (SCO), refining SCO into gasoline and diesel at four refineries, and selling refined products through roughly 1,730 Petro-Canada branded retail sites and a national wholesale network. Suncor operates through four segments: Oil Sands (mining, in situ, and upgrading), Exploration and Production (offshore East Coast fields), Refining and Marketing, and a trading and optimization arm that manages crude supply and product marketing. Vertical integration is the defining feature of Suncor's business model — by being both a large crude producer and a major refiner and retailer, Suncor captures margin at multiple steps in the value chain and partially hedges itself against crude price swings, since falling crude prices that hurt Oil Sands tend to widen refining margins. Suncor's cost base is largely fixed, so higher production volumes translate directly into lower per-barrel costs, giving the company significant operating leverage. Capital returns have been a stated priority since Suncor hit its $8B net debt target in Q3 2024, with the company returning $13.6B to shareholders via dividends and buybacks since 2023. Management has also focused on reducing costs structurally, including cutting turnaround costs, extending maintenance intervals, and deploying autonomous haulage equipment at its mines.