South Bow Corporation operates as an energy infrastructure company. It operates through three segments: Keystone Pipeline System, Marketing, and Intra-Alberta & Other. The Keystone Pipeline System segment consists of the company's main liquids pipeline network, which transports crude oil from Hardisty, Alberta, to key U.S. markets including Wood River, Patoka, Illinois, Cushing, Oklahoma, and the Gulf Coast. The Marketing segment provides crude oil marketing services, including transportation, storage, and logistics, and engages in physical crude oil trading and hedging activities. The Intra-Alberta & Other segment comprises pipelines such as the Grand Rapids Pipeline and White Spruce Pipeline, offering crude oil transportation from Alberta's oil sands to refining and market regions, and i…