TC PipeLines, LP was a publicly traded master limited partnership.
TC Energy owned 25.48%[2] of the outstanding units and controlled the general partner.
TC PipeLines, LP managed and owned natural gas pipelines in the United States including 46.45% of Great Lakes Gas Transmission Limited Partnership, 50% of Northern Border Pipeline Company, 100% of Gas Transmission Northwest, and 100% of Tuscarora Gas Transmission Company.
TC PipeLines, LP was based in Calgary, Alberta.
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