TransCanada Corporation $1.75B of Subscription Receipts and Common Shares

On January 31, 2007 TransCanada Corporation filed a final short-form base shelf prospectus with the securities regulatory authorities in each of the provinces and territories in Canada and with the Securities and Exchange Commission in the United States under the Multijurisdictional Disclosure System pursuant to which it may issue, from time to time, up to $3 billion in equity securities.

On February 14, 2007 TransCanada completed an offering of 39,470,000 subscription receipts pursuant to a prospectus supplement, dated February 6, 2007, to the shelf prospectus for gross proceeds to TransCanada of approximately $1.5 billion, the largest subscription receipt bought deal offering in Canadian history. The subscription receipts were exchanged on a one-for-one basis into common shares on February 22, 2007 in connection with the closing of TransCanada's acquisition of American Natural Resources Company and ANR Storage Company and an additional 3.55 per cent interest in Great Lakes Gas Transmission Limited Partnership from El Paso Corporation. Upon the closing on March 6, 2007 of the exercise of an over-allotment option for 5,920,500 common shares, TransCanada's gross proceeds from this offering totalled approximately $1.75 billion, which constitutes the largest equity bought deal offering in Canadian history.

The offering was underwritten by a syndicate led by BMO Nesbitt Burns Inc., RBC Dominion Securities Inc., and TD Securities Inc., and included CIBC World Markets Inc., Scotia Capital Inc., National Bank Financial Inc., HSBC Securities (Canada) Inc., UBS Securities Canada Inc. and Canaccord Capital Corporation.

TransCanada was represented in-house by Sean McMaster, general counsel, Robert Pitt, vice-president, finance law and Bruce Nysetvold, senior legal counsel; and by David Lefebvre, Craig Story, David Taniguchi, Charles Kraus, Kristi Kasper and Charlotte Feasby (securities) and David Weekes (tax) of Stikeman Elliott LLP as Canadian counsel; and by Michael Hermsen, Jennifer Keating and Maria Khersonskaya of Mayer, Brown, Rowe & Maw LLP as US counsel. The underwriters were represented by Kent Kufeldt, Don Tse and Chris Wolfenberg (securities) and Darren Hueppelsheuser (tax) of Macleod Dixon LLP as Canadian counsel; and by Christopher Cummings, Stephen Centa and Shane Smyth of Shearman & Sterling LLP as US counsel.


Kent D. Kufeldt Don Tse Craig A. Story Darren D. Hueppelsheuser David G. Weekes Christopher M. Wolfenberg David R.J. Lefebvre David Taniguchi Kristi M. Kasper Charlotte Feasby Charles R. (Chuck) Kraus


Stikeman Elliott LLP Mayer Brown LLP Norton Rose Fulbright Canada LLP Shearman & Sterling LLP