In its Annual Information Form/Form 40-F, Suncor disclosed that the reclassification of the contingent resources, which have an effective date of December 31, 2012 for the Fort Hills project, was largely contingent upon an assessment that development would be sanctioned and commence within a reasonable time frame. Since the date of Suncor's Annual Information Form, the respective co-owners of the Fort Hills project have sanctioned the project. Given the foregoing, these resources, or a portion thereof, may in the future be re-classified as reserves.