This excerpt taken from the SU 6-K filed Jul 2, 2009.
Without certificates, how will I know how many Amalco Shares I own?
The first time your Amalco Shares are recorded under DRS (upon completion of the Arrangement) you will receive an initial Direct Registration DRS Advice (a DRS Advice) acknowledging the number of Amalco Shares you hold in your DRS account. Each time you have any movement of shares into or out of your DRS account, you will be mailed an updated DRS Advice. On an annual basis DRS holders will receive a DRS Advice showing their book-entry holdings as of December 31st. You may request an additional statement at any time by contacting Computershare or by accessing your account online at www.computershare.com/suncor.