TransCanada Corporation (TransCanada) is an energy infrastructure company. The Company operates through three segments: Natural Gas Pipelines, Liquids Pipelines and Energy. The Natural Gas Pipelines segment consists of the Company's investments in approximately 67,300 kilometers (km) (approximately 41,900 miles) of regulated natural gas pipelines and over 250 billion cubic feet (Bcf) of regulated natural gas storage facilities. These assets are located in Canada, the United States and Mexico. The Liquids Pipelines segment consists of approximately 4,250 km (approximately 2,640 miles) of crude oil pipeline systems, which connect Alberta and the United States crude oil supplies to the United States refining markets in Illinois, Oklahoma and Texas. The Energy segment consists of the Company's investments in over 20 electrical power generation plants and approximately two non-regulated natural gas storage facilities.