TC Energy

The company was incorporated in 1951 by a Special Act of Parliament as Trans-Canada Pipe Lines Limited. In 1954 N. Eldon Tanner, president of Merrill Petroleums and former Alberta legislator, became president of the company. The purpose of the company was to develop the TransCanada pipeline (now known as the Canadian Mainline) to supply eastern Canadian markets with natural gas produced in the west. In 1998, TransCanada Pipelines merged with NOVA Corporation's pipeline business, keeping the TransCanada name and becoming "the fourth largest energy services company in North America". Seeking to expand its presence in the United States, in 2016, TransCanada acquired Columbia Pipeline Group (CPG) for US$13 billion from NiSource's Shareholders. The CPG acquisition added a pipeline network in Pennsylvania and surrounding states, where the Marcellus and Utica shale gas formations are located. In May 2019, the company changed its name from TransCanada Corporation to TC Energy Corporation to better reflect the company's business, which includes pipelines, power generation and energy storage operations in Canada, the United States and Mexico. In October 2019, the 56-story Bank of America Center skyscraper in Houston, Texas was renamed as TC Energy Center and serves as the company's US headquarters. On October 1, 2024, TC Energy completed the spinoff of its Liquids Pipelines business creating an independent company, South Bow, focused on crude oil pipelines. ==Operations==

Natural gas pipelines TC Energy's natural gas pipelines business builds, owns and operates a network of natural gas pipelines across North America that connects gas production to interconnects and end use markets. The company transports over 30% of continental daily natural gas demand through approximately 94,000 km (58,409 mi) of pipelines. In addition, the company owns 532 Bcf of natural gas storage facilities, making TC Energy one of the largest natural gas storage providers in North America. This segment is TC Energy's largest segment, generating approximately 87% of the company's EBITDA in 2024. The Natural Gas Pipelines business is split into three operating segments: Canadian Natural Gas Pipelines, U.S. Natural Gas Pipelines, and Mexico Natural Gas Pipelines. The major pipeline systems include: • NGTL System (24,631 km) A wholly owned subsidiary, NOVA Gas Transmission Ltd., connects gas producers in the Western Canadian Sedimentary Basin with consumers and exports. TC Energy has the largest and most extensive natural gas network in Alberta. • Canadian Mainline (14,082 km) This pipeline serves as a long haul delivery system transporting natural gas from the Western Canadian Sedimentary Basin across Canada to Ontario and Québec to deliver gas to downstream Canadian and U.S. markets. The pipeline has evolved accommodate additional supply connections closer to its markets. The mainline is over 60 years old • Columbia Gas (18,768 km) This natural gas transportation system serves the Appalachian Basin, which contains the Marcellus and Utica plays, two of the largest natural gas shale plays in North America. The system also interconnects with other pipelines that provide access to the U.S. Northeast and the Gulf of Mexico. • ANR Pipeline System (15,075 km) This pipeline system connects supply basins and markets throughout the U.S. Midwest, and south to the Gulf of Mexico. This includes connecting supply in Texas, Oklahoma, the Appalachian Basin and the Gulf of Mexico to markets in Wisconsin, Michigan, Illinois and Ohio. In addition, ANR has bi-directional capability on its Southeast Mainline and delivers gas produced from the Appalachian basin to customers throughout the Gulf Coast Region. • Columbia Gulf (5,419 km) — This pipeline system was originally designed as a long haul delivery system transporting supply from the Gulf of Mexico to major demand markets in the U.S. Northeast. The pipeline is now transitioning to a north-to-south flow and expanding to accommodate new supply in the Appalachian Basin and its interconnects with Columbia Gas and other pipelines to deliver gas to various Gulf Coast markets. • Mexico Pipeline Network (3,500 km) — This consists of a network of natural gas pipelines in Mexico. • Southeast Gateway Pipeline (715 km) — A marine pipeline that will transport natural gas, connecting the supply from Tuxpan, Veracruz, to delivery points in Coatzacoalcos, Veracruz, and in Paraíso, Tabasco. • Coastal Gaslink Pipeline Project (670 km) – Coastal Gaslink delivers natural gas from the Dawson Creek area to a facility near Kitimat, where LNG Canada prepares it for export to global markets by converting the gas to a liquefied state—also known as liquefied natural gas (LNG). Energy TC Energy's Energy division consists of power generation and unregulated natural gas storage assets. The power business consists of approximately 4,650 megawatts (MW) of generation capacity owned or under development. These assets are located primarily in Canada and are powered by natural gas, nuclear, and wind. near Meaford, Ontario would provide 1000 MW of clean energy and the proposed Canyon Creek Pumped Storage Project near Hinton, Alberta would provide 75 MW of clean energy. ==Ownership==

As of September 2025, 84% of the share capital of TC Energy is owned by institutional investors. The dominant shareholder is the Royal Bank of Canada, which owns over 12% of the company. The top 10 shareholders hold ~40% of total shares outstanding. ==Operational projects==

Operational natural gas pipelines Operational power projects ==Political activities==

A former TC Energy executive, in an internal meeting for external relations staff, claimed that the firm had played a central role in excluding pipelines from the scope of provincial legislation in British Columbia, Canada. A TC Energy representative described the claims as exaggerated and untrue. In 2019 TC Energy aided the drafting of anti-protest legislation in South Dakota. The legislation, which Governor Kristi Noem signed into law in March 2019, created a fund to cover the costs of policing pipeline protests, and was accompanied by another law which sought to raise revenue for the fund by creating civil penalties for advising, directing, or encouraging persons participating in rioting. In response to the law Noem was sued by the Indigenous Environmental Network, Sierra Club, and other groups, who argued the laws violate First Amendment rights by incentivizing the state to sue protesters. == Leadership ==

President • Clinton Williams Murchison Sr., 1951–1954 • Nathan Eldon Tanner, 1954–1957 • Charles Shelton Coates Sr., 1957–1958 • James Winslow Kerr, 1958–1968 • Vernon Lyle Horte, 1968–1972 • George Webster Woods, 1972–1979 • Radcliffe Robertson Latimer, 1979–1985 • Gerald James Maier, 1985–1993 • George William Watson, 1993–1999 • Douglas Daniel Baldwin, 1999–2001 • Harold Norman Kvisle, 2001–2010 • Russell Keith Girling, 2010–2021 • François Lionel Poirier, 2021–present Chairman of the Board • Nathan Eldon Tanner, 1957–1958 • Charles Shelton Coates Sr., 1958–1961 • James Winslow Kerr, 1961–1979 • John Macdonald Beddome, 1979–1983 • Gordon Peter Osler, 1983–1989 • Joseph Victor Raymond Cyr, 1989–1991 • Gerald James Maier, 1991–1998 • Richard Francis Haskayne, 1998–2005 • Steven Barry Jackson, 2005–2016 • Siim Alden Vanaselja, 2016–2023 • John Edward Lowe, 2024–present ==References==