TC PipeLines, LP Announces Third Quarter Cash Distribution

TC PipeLines, LP (NASDAQ:TCLP) (the Partnership) today announced the board of directors of TC PipeLines GP, Inc., its general partner, declared the Partnership's third quarter 2011 cash distribution of $0.77 per common unit. The distribution is equivalent to the second quarter 2011 distribution and represents a 2.7 per cent increase from the $0.75 per common unit paid in third quarter 2010.

This cash distribution is the 50th consecutive quarterly distribution paid by the Partnership and is payable on November 14, 2011 to unitholders of record at the close of business on October 31, 2011.

TC PipeLines, LP has interests in 5,560 miles of federally regulated U.S. interstate natural gas pipelines which serve markets across the United States and Eastern Canada. This includes significant interests in Great Lakes Gas Transmission Limited Partnership and Northern Border Pipeline Company as well as 25 per cent ownership interest in each of Gas Transmission Northwest LLC, and Bison Pipeline LLC. TC PipeLines, LP also has 100 per cent 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.

Contacts: TC PipeLines, LP Media Enquiries: Terry Cunha/Shawn Howard 403.920.7859 or 800.608.7859 TC PipeLines, LP Unitholder and Analyst Enquiries: Lee Evans [e-mail]