interactive pipeline map

Navigate along the Iroquois pipeline for further information on our facilities.

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Partners in Natural Gas Transportation

Iroquois Gas Transmission System was created to provide the Northeast with a viable alternative fuel supply that is clean, reliable and cost-effective. The partnership is currently comprised of the following companies:

Partner Company Affiliation Ownership
TC PipeLines Intermediate LP TransCanada PipeLines Limited 49.34%
TransCanada Iroquois Ltd TransCanada PipeLines Limited 0.66%
Dominion Iroquois, Inc. Dominion Energy, Inc. 24.07%
Iroquois GP Holding Company, LLC Dominion Energy, Inc. 25.93%

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