South Bow Corporation is an energy infrastructure company operating through three segments: Keystone Pipeline System, Marketing, and Intra-Alberta & Other. The Keystone Pipeline System segment consists of its main liquids pipeline network, transporting crude oil from Hardisty, Alberta, to key U.S. markets including Wood River and Patoka, Illinois, Cushing, Oklahoma, and the Gulf Coast. The Marketing segment provides crude oil marketing services such as transportation, storage, and logistics, and engages in physical crude oil trading and hedging. The Intra-Alberta & Other segment includes pipelines such as the Grand Rapids Pipeline and White Spruce Pipeline, transporting crude oil from Alberta's oil sands to refining and market regions, and also includes corporate and financing activities. The company operates 4,900 kilometres of crude oil pipeline infrastructure connecting Alberta crude oil supplies to U.S. refining markets in the Midwest and Gulf Coast, and offers ancillary services including storage at terminals. It was incorporated in 2023 and is based in Calgary, Canada.