Attached files

file filename
EX-99.12 - EX-99.12 - TC PIPELINES LPa2223176zex-99_12.htm
EX-99.10 - EX-99.10 - TC PIPELINES LPa2223176zex-99_10.htm
EX-31.1 - EXHIBIT 31.1 - TC PIPELINES LPa2223176zex-31_1.htm
EX-99.15 - EX-99.15 - TC PIPELINES LPa2223176zex-99_15.htm
EX-23.3 - EXHIBIT 23.3 - TC PIPELINES LPa2223176zex-23_3.htm
EX-32.1 - EXHIBIT 32.1 - TC PIPELINES LPa2223176zex-32_1.htm
EX-32.2 - EXHIBIT 32.2 - TC PIPELINES LPa2223176zex-32_2.htm
EX-12.1 - EXHIBIT 12.1 - TC PIPELINES LPa2223176zex-12_1.htm
EX-99.11 - EX-99.11 - TC PIPELINES LPa2223176zex-99_11.htm
EX-31.2 - EXHIBIT 31.2 - TC PIPELINES LPa2223176zex-31_2.htm
EX-23.2 - EXHIBIT 23.2 - TC PIPELINES LPa2223176zex-23_2.htm
EX-99.16 - EX-99.16 - TC PIPELINES LPa2223176zex-99_16.htm
EX-99.9 - EX-99.9 - TC PIPELINES LPa2223176zex-99_9.htm
EXCEL - IDEA: XBRL DOCUMENT - TC PIPELINES LPFinancial_Report.xls
10-K - FORM 10-K - TC PIPELINES LPa2223176z10-k.htm
EX-23.1 - EXHIBIT 23.1 - TC PIPELINES LPa2223176zex-23_1.htm
EX-99.14 - EX-99.14 - TC PIPELINES LPa2223176zex-99_14.htm
EX-99.13 - EX-99.13 - TC PIPELINES LPa2223176zex-99_13.htm

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Exhibit 21.1


SUBSIDIARIES OF THE REGISTRANT

1.
The Registrant holds a 98.9899 percent limited partner interest in TC GL Intermediate Limited Partnership, a Delaware limited partnership.

2.
Through its interest in TC GL Intermediate Limited Partnership, the Registrant holds a 46.45 percent general partner interest in Great Lakes Gas Transmission Limited Partnership, a Delaware limited partnership.

3.
The Registrant holds a 98.9899 percent limited partner interest in TC PipeLines Intermediate Limited Partnership, a Delaware limited partnership.

4.
Through its interest in TC PipeLines Intermediate Limited Partnership, the Registrant holds a 50 percent general partner interest in Northern Border Pipeline Company, a Texas general partnership.

5.
Through its interest in TC PipeLines Intermediate Limited Partnership, the Registrant holds a 70 percent interest in Gas Transmission Northwest LLC, a Delaware limited liability company.

6.
Through its interest in TC PipeLines Intermediate Limited Partnership, the Registrant wholly-owns Bison Pipeline LLC, a Delaware limited liability company.

7.
Through its interest in TC PipeLines Intermediate Limited Partnership, the Registrant wholly-owns North Baja Pipeline, LLC, a Delaware limited liability company.

8.
The Registrant holds a 98.9899 percent limited partner interest in TC Tuscarora Intermediate Limited Partnership, a Delaware limited partnership.

9.
Through its interest in TC Tuscarora Intermediate Limited Partnership, the Registrant wholly-owns TC Pipelines Tuscarora LLC, a Delaware limited liability company.

10.
Through its interest in TC Tuscarora Intermediate Limited Partnership and TC Pipelines Tuscarora LLC, the Registrant wholly-owns Tuscarora Gas Transmission Company, a Nevada general partnership.



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SUBSIDIARIES OF THE REGISTRANT