TransCanada PipeLines Limited TransCanada PipeLines Limited (TCPA), a wholly owned subsidiary of TC Energy Corporation TC Energy Corporation, provides pipeline services for the natural gas and oil industries across North America; it operates through segments including Canadian Natural Gas Pipelines with 40,596 km of regulated pipelines, U.S. Natural Gas Pipelines, Mexico Natural Gas Pipelines, Liquids Pipelines encompassing 4,865 km of crude oil systems connecting Alberta supplies to U.S. refining markets in Illinois, Oklahoma, and Texas, and Power and Energy Solutions featuring approximately 4,600 MW of power generation facilities and 118 Bcf of non-regulated natural gas storage. The company, founded in 1951 and headquartered in Calgary, Canada, transports over 25% of North America's daily natural gas demand via extensive networks serving local distribution companies, power plants, industrial facilities, LNG export terminals, and other markets; its operations span Canada, the United States, and Mexico, targeting energy producers, utilities, and industrial customers. Recent developments include TC Energy's announcement of four growth projects totaling $1.5 billion in capital expenditures at its 2024 Investor Day, such as the $0.4 billion Pulaski Project, $0.4 billion Maysville Project, $0.3 billion Southeast Virginia Energy Storage Project, and Bruce Power 2030 Project, all underpinned by long-term contracts and targeting in-service dates in 2029; completion of the $1.14 billion sale of the Portland Natural Gas Transmission System in August 2024 to advance a $3 billion divestiture target; a historic equity ownership agreement enabling Indigenous communities to acquire stakes in the NGTL and Foothills Systems; and sanctioning of the $1.2 billion Cedar Link expansion for Coastal GasLink to supply up to 0.4 Bcf/d to Cedar LNG.