https://www.bleepingcomputer.com/news/security/suncor-energy-cyberattack-impacts-petro-canada-gas-stations/

Petro-Canada gas stations across Canada are impacted by technical problems preventing customers from paying with credit card or rewards points as its parent company, Suncor Energy, discloses they suffered a cyberattack.

Suncor Energy is the 48th-largest public company in the world, and one of Canada's largest synthetic crude producers, having an annual revenue of $31 billion.