Suncor Energy (SU) stock: Winston Score and insider trades
Suncor Energy is a Canadian oil and gas company that mines oil sands in Alberta, Canada, and turns that raw material into fuels like gasoline, diesel, and jet fuel. It sells those fuels to everyday drivers, airlines, and industrial customers, mostly across Canada and the United States. Suncor also owns a large network of Petro-Canada gas stations, making it one of Canada's most recognizable energy brands. Suncor makes money by extracting and upgrading oil sands into synthetic crude, refining it into finished fuels, and selling those fuels at both wholesale and retail levels. This integrated model — controlling the process from the ground to the gas pump — helps protect profits when oil prices shift. The company operates almost entirely in North America and generates tens of billions in annual revenue. The biggest risk it faces is the high cost of oil sands production, which makes earnings sensitive to drops in global crude oil prices.
Winston Score: 66 out of 100, Good
A decent business — some strong pillars, some weaker.
- Quality: Strong (24/30)
- Growth: Strong (14/20)
- Cash Flow: Exceptional (9/10)
- Stability: Exceptional (10/10)
- Valuation: Good (5/10)
- Ownership: Weak (1/15)
Key Facts
Price: $78.05
Market Cap: $92.2B
Sector: Energy
Industry: Oil & Gas Integrated
Exchange: New York Stock Exchange
Editorial rules set and reviewed by Felix Prehn, Economist and Editor. Figures are refreshed daily from Financial Modeling Prep and company filings; last refreshed 2026-10-16.

