TC PipeLines, LP
NASDAQ : TCLP

TC PipeLines, LP

April 15, 2010 12:50 ET

TC PipeLines, LP First Quarter 2010 Teleconference and Webcast Advisory

HOUSTON, TEXAS--(Marketwire - April 15, 2010) - TC PipeLines, LP (NASDAQ:TCLP) (the Partnership) will release its first quarter 2010 financial results and hold a teleconference and webcast on Wednesday, April 28, 2010.

Mark Zimmerman, president of the general partner, will discuss the first quarter 2010 financial results and general developments of the Partnership before opening the call to questions from analysts and members of the media.

Event:
TC PipeLines, LP first quarter 2010 financial results teleconference and webcast

Date:
Wednesday, April 28, 2010

Time:
11:00 a.m. central daylight time (CDT) / 12:00 p.m. eastern daylight time (EDT)

How:
To participate in the teleconference, please call 866.225.0198. Please dial in 10 minutes prior to the start of the call. No pass code is required. 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.

A replay of the teleconference call will also be available two hours after the conclusion of the call and until 11:00 p.m. (CDT) and midnight (EDT), Wednesday, May 5, 2010, by dialing 800.408.3053, then entering pass code 1737177#.

TC PipeLines, LP has interests in approximately 3,700 miles of federally regulated U.S. interstate natural gas pipelines, including Great Lakes Gas Transmission Limited Partnership (46.45 per cent ownership), Northern Border Pipeline Company (50 per cent ownership), North Baja Pipeline, LLC (100 per cent ownership) and Tuscarora Gas Transmission Company (100 per cent ownership). Great Lakes is a 2,115-mile natural gas pipeline system serving markets in Minnesota, Wisconsin, Michigan and eastern Canada. The 1,249-mile Northern Border Pipeline transports natural gas from the Montana-Saskatchewan border to markets in the midwestern United States. North Baja is an 80-mile natural gas pipeline system that transports natural gas between southwestern Arizona and a point on the California/Mexico border where it connects with a natural gas pipeline system in Mexico. Tuscarora is a 240-mile pipeline system that transports natural gas from Oregon, where it interconnects TransCanada's Gas Transmission Northwest System, to markets in Oregon, California, and Nevada. TC PipeLines, LP is managed by its general partner, TC PipeLines GP, Inc., an indirect wholly owned subsidiary of TransCanada Corporation. TC PipeLines GP, Inc. also holds common units of TC PipeLines, LP. 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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