TC PipeLines, LP is a United States growth-oriented Master Limited Partnership (MLP). It was formed by TransCanada PipeLines Limited to acquire, own and actively participate in the management of United States based natural gas pipelines and related assets.
TC PipeLines owns a 50% general partner interest in Northern Border Pipeline Company, which owns a 1,249-mile interstate pipeline system that transports natural gas from the Montana-Saskatchewan border to markets in the midwestern United States, and a 49% general partner interest in Tuscarora Gas Transmission Company, which owns a 240-mile interstate pipeline system that transports natural gas from Oregon, where it interconnects with Gas Transmission Northwest Corporation, to northern Nevada.