TC PipeLines, LP
NASDAQ : TCLP

TC PipeLines, LP

July 20, 2005 17:17 ET

TC PipeLines, LP Second Quarter Earnings Release and Teleconference Advisory

CALGARY, ALBERTA--(CCNMatthews - July 20, 2005) - TC PipeLines, LP (NASDAQ:TCLP) (the Partnership) will release its second quarter 2005 financial results after markets close on Wednesday, August 3, 2005.

Analysts, members of the public, the media and other interested parties are invited to participate in a teleconference and audio webcast on August 4, 2005 at 12 p.m. (Eastern). Ron Turner, president and chief executive officer of the general partner, will discuss the second quarter 2005 financial results and general developments and issues concerning the Partnership. To participate, please call (866) 540-8136. A replay of the conference call will also be available two hours after the conclusion of the call and until midnight, August 11, 2005, by dialing (800) 408-3053, then entering pass code 3158912.

A live webcast of the conference call will also be available through the Partnership's website at www.tcpipelineslp.com. An audio replay of the call will be maintained on the website.

TC PipeLines, LP is a publicly held limited partnership. It owns a 30 per cent interest in Northern Border Pipeline Company, a Texas general partnership, and a 49 per cent interest in Tuscarora Gas Transmission Company, a Nevada general partnership. Northern Border Pipeline, which is owned 70 per cent by Northern Border Partners, L.P., a publicly traded master limited partnership controlled by affiliates of ONEOK, Inc., owns a 1,249-mile United States interstate pipeline system that transports natural gas from the Montana-Saskatchewan border to markets in the midwestern United States. Tuscarora owns a 240-mile interstate pipeline system that transports natural gas to Nevada from Oregon, where it interconnects to TransCanada's GTN System. TC PipeLines, LP is managed by its general partner, TC PipeLines GP, Inc., a wholly owned subsidiary of TransCanada PipeLines Limited. TC PipeLines GP, Inc. also holds common units of the Partnership. Common units of TC PipeLines, LP are quoted on the Nasdaq Stock Market and trade under the symbol "TCLP". For more information about TC PipeLines, LP, visit the Partnership's website at www.tcpipelineslp.com.

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