HOUSTON, TEXAS--(Marketwire - Jan. 27, 2011) - TC PipeLines, LP (NASDAQ:TCLP) (the Partnership) will release its fourth quarter 2010 financial results on Thursday, February 10, 2011 after market close. Steve Becker, president of the general partner, will discuss financial results and company developments in a teleconference and audio webcast on Friday, February 11, 2011 at 11 a.m. central standard time (CST)/12 p.m. eastern standard time (EST).

Analysts, members of the media and other interested parties are invited to participate by calling 866.225.0198. Please dial in 10 minutes prior to the start of the call. No pass code is required. A live audio 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 will also be available two hours after the conclusion of the call and until 11 p.m. (CST) and midnight (EST) on February 18, 2011, by calling 800.408.3053, then entering pass code 8686876.

TC PipeLines, LP has interests in approximately 3,700 miles of federally regulated U.S. interstate natural gas pipelines which serve markets across the United States, Eastern Canada and Mexico. This includes significant interests in Great Lakes Gas Transmission Limited Partnership and Northern Border Pipeline Company as well as 100 percent ownership of North Baja Pipeline, LLC and Tuscarora Gas Transmission Company. 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 Global Select Market and trade under the symbol "TCLP." For more information about TC PipeLines, LP, visit the Partnership's website at www.tcpipelineslp.com.

Contact Information: TC PipeLines, LP
Media Inquiries:
Terry Cunha
403.920.7859 or 800.608.7859
TC PipeLines, LP
Unitholder and Analyst Inquiries:
Lee Evans