EXPRESS NEWS
 October 10, 2007

TransCanada Announces a Co-ordinated Non-Binding Open Season with Mainline, ANR, GLGT and PNGTS

Overview

With an unparalleled North American pipeline infrastructure, access to a range of transportation and timely storage options, all backed by a proven track record of reliability and a commitment to operational excellence, TransCanada is well positioned to provide customers with a range of flexible and strategic options to move gas from all major supply basins and hubs to market.

Affiliates of TransCanada PipeLines Limited (“TransCanada”) are holding open seasons to evaluate shipper interest in capacity that will enhance the ability for growing Central Canada (Ontario and Quebec) and Northeast U.S. markets to access supply from major existing and emerging supply basins in North America and new storage capacity in nearby Michigan. Utilizing its Canadian pipeline system and recently acquired U.S. pipeline and storage infrastructure, TransCanada seeks to provide its customers a variety of coordinated transportation and storage options to acquire supply, including new supply from the U.S. Rockies and mid-continent shale plays, on a cost effective and timely basis. The results of the coordinated open seasons will determine the appropriate capacity and costs to meet the needs of the market.

Co-ordinated Non-Binding Open Season  

TransCanada, through its Canadian Mainline (“Mainline”), and with its wholly or partially owned entities ANR Pipeline Company (“ANR”), ANR Storage Company (“ANRSCo”), Great Lakes Gas Transmission (“GLGT”) and Portland Natural Gas Transmission System (“PNGTS”),together referred to as the “Companies”, announce the commencement of a non-binding Open Season for capacity connecting services on the Companies’ systems. This process will enable TransCanada to assess shipper interest for integrated services across its systems.

The open season could identify capacity requirements for emerging supply sources and storage to a diverse market base including:

  • Eastern Canadian market points served by the Mainline system
  • Northeast U.S. markets accessed via export points served by the Mainline system (Iroquois/Waddington, East Hereford/Pittsburg)
  • Midwest U.S. markets served off of the ANR and GLGT systems
  • Southeast U.S. markets accessed by ANR via major Gulf Coast pipeline interconnects

This open season will utilize existing capacity supplemented as necessary with new facilities on any of the Companies assets.

The Open Season will commence at 2 PM CDT on October 10, 2007, and close at 2 PM CST on December 10, 2007. All completed Open Season Request Forms (“Request Forms”) must be received via email or fax to the respective company from which capacity is being sought by 2 PM CST on December 10, 2007.

For shippers interested in new storage capacity please note that ANR Pipeline Company (“ANR”), ANR Storage Company (“ANRSCo”) and Great Lakes Gas Transmission Limited Partnership (“GLGT”) recently initiated a coordinated non-binding open season for up to 35 Bcf of firm storage service and associated firm storage-related transportation services utilizing new and/or existing storage and pipeline facilities of ANR, ANRSCo and/or GLGT (“the STEP 2010 Project” or “the Project”). The Non-Binding Open Season commenced on September 20, 2007 and will close at 2:00 PM CST on November 7, 2007.

Further Information

Shippers seeking further information about each of the affiliates open season, can access the following websites: