William D. Robertson

Position: Lead Independent Director, Chair of the Audit Committee, Member of the Compensation and Governance Committees
Date of Appointment: June 16, 2003
Municipality of Residence: Calgary, Alberta
Age: 66

Mr. Robertson is a Fellow Chartered Accountant and was formerly the lead oil and gas specialist at Price Waterhouse and PriceWaterhouseCoopers in Calgary.  After enjoying a 36 year career with the firm, Mr. Robertson retired from practice in 2002.  Prior to this, he served on the CIM Petroleum Society Standing Committee on Reserve Definitions, as well as a number of other committees overseeing the practice of accounting in Alberta. Mr. Robertson graduated with a Bachelor of Commerce degree from the University of Alberta.