A

The sum of gross product from natural gas and oil sands.

B

Gross production of refined product from R&M Canada and R&M USA (R&M USA figures were not auditable for 2005 and 2006).

C

The sum of upstream production and downstream production that is used as it represents emissions associated with total plant throughput as opposed to only saleable product.

D

Emissions from the production of crude oil, natural gas, natural gas liquids, and refined products. Emissions from product consumption by others are not included.

E

GHG numbers include direct and indirect emissions but do not include ethanol and cogeneration reductions.

F

GHG numbers include direct and indirect emissions, ethanol and cogeneration reductions. Details on the individual GHGs (CO2, CH4, N2O, HFC, PFC, SF6) are included in the Climate Change section.

G

To view Suncor's submissions to the National Pollutant Release Inventory (NPRI), visit www.ec.gc.ca/pdb/npri and for the U.S. Toxins Release Inventory (TRI) program, visit www.epa.gov/tri. The 2008 NPRI report had not been completed at the time of reporting.

H

Energy consumption by source is not reported at this time.

I

Includes all water withdrawn from rivers, wells, and water purchased.

J

Includes water used and/or retained within an operation.

K

Major incidents are environment, health or safety incidents that result in a permanent disability or fatality, punitive action by government, having catastrophic environmental impact, or significant impact to the company's reputation.

L

A regulatory contravention is a failure to meet the conditions specified in operating approvals, permits, or licenses. In 2007 Oil Sands began reporting regulatory contraventions instead of reportable contraventions, as had been done in previous years, to align with Suncor's other business units.

M

Data includes regulatory fines related to environmental, health and safety contraventions paid during the stated year.

N

Full-time professionals dedicated to environment, health or safety matters, including the corporate office and Major Projects. Does not include contractors.

O

Suncor's production of natural gas, exclusive of volumes processed on behalf of others. Values are consistent with Suncor's Annual Reports.

P

Net oil production by Oil Sands added to natural gas liquids produced by Natural Gas, exclusive of volumes processed on behalf of others.

Q

Refinery production and other products purchased for resale. Values are consistent with Suncor's Annual Reports.

S

For complete disclosure and additional information see our 2008 Annual Report at http://www.suncor.com/

T

The following financial measures: cash flow from operations, return on capital employed (ROCE) and cash operating costs, referred to in this report are not prescribed by GAAP and are outlined and reconciled in Non-GAAP Financial Measures, on page 40 of our 2008 Annual Report.

U

Suncor's year-end share price. Share prices have been recalculated to reflect stock splits.

V

Monies remitted to government, including income, property, exercise and other taxes; Crown royalties; and lease bonuses and rentals.

W

Includes the Investment Tax Credit on Scientific Research and Experimental Development Expenditures, Deep Gas Royalty Holiday Program and Alberta Royalty Tax Credit.

X

Suncor provided financial donations to political parties at the federal level and the provincial level; specifically to the provinces within which we operate (British Columbia, Alberta, Saskatchewan, and Ontario). No political donations were made in the U.S. Suncor does not donate in-kind to political parties or individuals.

Y

On March 15, 2004 the company redeemed all of its then outstanding preferred securities.

Z

Goods and services — Purchasing numbers reported for 2005 and 2006 exclude costs of utilities, hydrocarbons and government fees/ taxes. New business processes were introduced in the company in 2007 allowing for a more comprehensive method of calculating purchases.

AA

Rates of absenteeism, lost days, and occupational disease are tracked but not reported by Suncor.

BB

Lost-time injury requires medical attention and results in an employee being absent from work on the next regularly scheduled work day or any subsequent work day. Lost-time injury frequency is the number of such injuries per 200,000 hours worked.

CC

Recordable injuries include lost time injuries as well as medical aid injuries. Medical aid injuries require medical attention but do not result in an employee being absent from work. Recordable injury frequency is the sum of lost time and medical aid injuries per 200,000 hours worked.

DD

Defined as the percentage of employees who leave the organization under any circumstance in a given year.

EE

The employee and family assistance program is a confidential counseling service available to employees and their families. Statistics do not include R&M USA since a different service is available to employees in the U.S.

FF

For 2004 long-term contractors, often maintenance or construction positions, included both “staged” (defined as full-time equivalent for an indefinite amount of time) and “structured” (defined as short-term positions with a finite term). 2005 and 2006 contractor data includes only staged contractors. R&M USA did not track for 2005 and 2006. 2007 and 2008 contractor data includes both staged and structured contractors that are workforce or capacity planned.

GG

Employee wages are defined as all monetary compensation to employees, including straight time wages, overtime and bonus payments (pre-requisite accounts, special payments, leases and excess credits). Stock options and performance share unit information are not included in wages or benefits, but can be found in Suncor's annual financial reports.

HH

Employee benefits are employer paid contributions/ premiums to pension, benefits and savings (e.g., health, dental, savings contributions, long-term disability, life and accident insurance and the employee assistance program). All benefits provided to full-time employees are also extended to part time employees on a pro-rata basis. Temporary employees receive benefits as required by applicable legislation.

II

Base pay is linked to how an employee's job is classified within job families to ensure consistency of how work is assessed and valued across the company. Variation within a job's salary band recognizes an individual's position on the learning curve and demonstration of job capacity.

JJ

Unionized employee data represents applicable business (Oil Sands, R&M Canada, and R&M USA).

KK

Calculated based on information provided voluntarily by employees.

LL

For Canadian operations only. Suncor is legally prohibited from asking this question of US employees.

MM

Management is classified as front-line or mid-level leaders, or members of the management committee or corporate committee.

NN

Suncor established the Suncor Energy Foundation in March 1998. The Suncor Energy Foundation is limited to providing donations to registered Canadian charitable organizations. This figure includes the donation allocation, the SEF operating budget and allocation to a reserve fund which protects multi-year commitments going forward.

OO

In Canada and parts of the USA, Suncor supports non-profit activities and events by providing financial assistance, product or in-kind contributions. This includes employee and retiree programs.

PP

In-kind donations include office furniture, computer equipment, product and employee secondments.

QQ

Volunteer time is reported by employees to Suncor on a voluntary basis. The hours shown generally represent time spent by employees volunteering in the community on behalf of Suncor.

RR

In 2007 an employee funding priority was created as a reflection of the level of support and service Suncor employees provide to communities and charitable organizations. Prior to 2007, employee grants were included in the community funding priority.