Equity

Overview:

Our American Depositary Shares (Level II), or ADSs, representing 20 common shares, have been traded on the NYSE under the symbol "EC" since September 2008. Since August 2010, our ADSs have been traded on the Toronto Stock Exchange under the symbol "ECP".

Contact Information:

• Depositary Bank
  J.P. Morgan
  1 Chase Manhattan Plaza, Floor 21
  New York, NY 10005
  (866) JPM-ADRS (866576-2377)
  adr@jpmorgan.com
   
• ADR Shareholders can contact:
  General: (800) 990-1135
  If calling from outside the U.S.: (651) 453-2128
  Jpmorgan.adr@wellsfargo.com
   
• J.P. Morgan Service Center
  JPMorgan Chase & Co.
  P.O. Box 64504
  St. Paul, MN 55164-0504