Transcanada to Sell Interests in Two Pipelines for $765 Million

Transcanada Corporation, May 4, 2017

TransCanada Corporation (TransCanada) today announced it has entered into agreements to sell a 49.3 per cent interest in Iroquois Gas Transmission System, LP (Iroquois), together with its remaining 11.8 per cent interest in Portland Natural Gas Transmission System (PNGTS), to its master limited partnership, TC PipeLines, LP (the Partnership). The US$765 million transaction, comprised of US$597 million in cash and the assumption of US$168 million in proportionate debt at Iroquois and PNGTS, is expected to close mid-2017, subject to customary conditions precedent.

"This agreement demonstrates the meaningful role that our MLP can play in funding a portion of our $23 billion near-term growth portfolio," said Russ Girling, TransCanada's president and chief executive officer. "Successfully executing our capital program through the end of the decade positions TransCanada to deliver significant sustainable growth in earnings, cash flow and dividends."

The Iroquois pipeline transports natural gas under long-term contracts and extends from the TransCanada Mainline system at the U.S. border near Waddington, New York to markets in the U.S. northeast, including New York City, Long Island and Connecticut. Iroquois is currently jointly owned by affiliates of TransCanada and Dominion Resources, Inc. through a joint venture. The pipeline is operated by a stand-alone company that is also jointly owned and based in Connecticut.

PNGTS is an interstate natural gas pipeline which began serving New England's energy needs in March 1999. The pipeline connects with the Trans Quebec & Maritimes Pipeline at the Canadian border and shares facilities with the Maritimes and Northeast Pipeline from Westbrook, Maine to a connection with the Tennessee Gas Pipeline System near Boston, Massachusetts. In January 2016, TransCanada sold a 49.9 per cent interest in PNGTS to the Partnership.

TransCanada, through its subsidiaries, currently holds an approximate 26 per cent interest in TC PipeLines, LP, a United States master limited partnership, which was formed to acquire, own and actively participate in the management of U.S. natural gas pipelines and related assets.

About Transcanada

With more than 65 years' experience, TransCanada is a leader in the responsible development and reliable operation of North American energy infrastructure including natural gas and liquids pipelines, power generation and gas storage facilities. TransCanada operates a network of natural gas pipelines that extends more than 91,500 kilometres (56,900 miles), tapping into virtually all major gas supply basins in North America. TransCanada is the continent's leading provider of gas storage and related services with 653 billion cubic feet of storage capacity. A large independent power producer, TransCanada currently owns or has interests in over 10,100 megawatts of power generation in Canada and the United States. TransCanada is also the developer and operator of one of North America's leading liquids pipeline systems that extends over 4,300 kilometres (2,700 miles), connecting growing continental oil supplies to key markets and refineries. TransCanada's common shares trade on the Toronto and New York stock exchanges under the symbol TRP. Visit to learn more.

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