-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 OZvqA0fYX1gMUy8BVy1BxfV9tIGaTrXKTHV6m1e1esbgttuP2gbzcBbIQzvwqnG0
 yH6W8fnKCEqz6akPgUnzEQ==

<SEC-DOCUMENT>0001104659-09-021964.txt : 20090401
<SEC-HEADER>0001104659-09-021964.hdr.sgml : 20090401
<ACCEPTANCE-DATETIME>20090401112012
ACCESSION NUMBER:		0001104659-09-021964
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20090331
FILED AS OF DATE:		20090401
DATE AS OF CHANGE:		20090401

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SUNCOR ENERGY INC
		CENTRAL INDEX KEY:			0000311337
		STANDARD INDUSTRIAL CLASSIFICATION:	PETROLEUM REFINING [2911]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			A0
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12384
		FILM NUMBER:		09721815

	BUSINESS ADDRESS:	
		STREET 1:		112 4TH AVENUE SW PO BOX 38
		STREET 2:		CALGARY
		CITY:			ALBERTA CANADA
		STATE:			A0
		ZIP:			T2P 2V5
		BUSINESS PHONE:		4032698100

	MAIL ADDRESS:	
		STREET 1:		112 FOURTH AVE SW BOX 38
		STREET 2:		CALGARY
		CITY:			ALBERTA CANADA
		ZIP:			T2P 2V5

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SUNCOR INC
		DATE OF NAME CHANGE:	19970430

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GREAT CANADIAN OIL SANDS & SUN OIL CO LTD
		DATE OF NAME CHANGE:	19791129
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>a09-8410_36k.htm
<DESCRIPTION>6-K
<TEXT>

<html>

<head>





</head>

<body lang="EN-US">

<div>

<div style="border-bottom:solid windowtext 1.0pt;border-left:none;border-right:none;border-top:solid windowtext 3.0pt;padding:1.0pt 0in 1.0pt 0in;">

<p style="border:none;margin:0in 0in .0001pt;padding:0in;"><font size="1" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>

</div>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="font-weight:bold;margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;">FORM&nbsp;6-K</font></b></p>

<p style="font-weight:bold;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">WASHINGTON,
D.C.&#160; 20549</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">Report of Foreign Private Issuer<br>
Pursuant to Rule&nbsp;13a - 16 or 15d - 16 of<br>
the Securities Exchange Act of 1934</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="102%" style="border-collapse:collapse;width:102.5%;">
 <tr>
  <td width="295" valign="top" style="padding:0in 0in 0in 0in;width:221.4pt;">
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">For the month of:&nbsp; April&nbsp;2009</font></b></p>
  </td>
  <td width="295" valign="top" style="padding:0in 0in 0in 0in;width:221.4pt;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Commission
  File Number:&nbsp; 1-12384</font></b></p>
  </td>
 </tr>
</table>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">SUNCOR ENERGY INC.</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Name of
registrant)</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">112
Fourth Avenue S.W.</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">P.O.&nbsp;Box
38</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Calgary,
Alberta</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Canada,
T2P 2V5</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Indicate by check mark
whether the registrant files or will file annual reports under cover of Form&nbsp;20-F
or Form&nbsp;40-F:</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="17%" valign="top" style="padding:0in 0in 0in 0in;width:17.66%;">
  <p style="margin:0in 0in .0001pt 46.1pt;text-indent:-10.1pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Form&nbsp;20-F</font></p>
  </td>
  <td width="29%" valign="bottom" style="padding:0in 0in 0in 0in;width:29.6%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>
  </td>
  <td width="17%" valign="top" style="padding:0in 0in 0in 0in;width:17.58%;">
  <p style="margin:0in 0in .0001pt 46.1pt;text-indent:-10.1pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Form&nbsp;40-F</font></p>
  </td>
  <td width="23%" valign="bottom" style="padding:0in 0in 0in 0in;width:23.42%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">x</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.74%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
</table>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Indicate by check mark
whether the registrant by furnishing the information contained in this Form&nbsp;is
also thereby furnishing the information to the SEC pursuant to Rule&nbsp;12g3-2(b)&nbsp;under
the Securities Exchange Act of 1934:</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="17%" valign="top" style="padding:0in 0in 0in 0in;width:17.66%;">
  <p style="margin:0in 0in .0001pt 46.1pt;text-indent:-10.1pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Yes</font></p>
  </td>
  <td width="29%" valign="bottom" style="padding:0in 0in 0in 0in;width:29.6%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>
  </td>
  <td width="17%" valign="top" style="padding:0in 0in 0in 0in;width:17.58%;">
  <p style="margin:0in 0in .0001pt 46.1pt;text-indent:-10.1pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">No</font></p>
  </td>
  <td width="23%" valign="bottom" style="padding:0in 0in 0in 0in;width:23.42%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">x</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.74%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
</table>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">If &#147;Yes&#148; is marked, indicate
the number assigned to the registrant in connection with Rule&nbsp;12g3-2(b):</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">N/A</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<div style="border-bottom:solid windowtext 3.0pt;border-left:none;border-right:none;border-top:solid windowtext 1.0pt;padding:1.0pt 0in 1.0pt 0in;">

<p style="border:none;margin:0in 0in .0001pt;padding:0in;"><font size="1" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>

</div>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='',FILE='C:\JMS\105808\09-8410-3\task3463628\8410-3-ba.htm',USER='105808',CD='Apr  1 20:08 2009' -->


<br clear="all" style="page-break-before:always;">


<div>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURES</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the
requirements of the Securities Exchange Act of 1934, the registrant has duly
caused this report to be signed on its behalf by the undersigned, thereunto
duly authorized.</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="46%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:46.66%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="5%" valign="top" style="padding:0in 0in 0in 0in;width:5.84%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="47%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:47.5%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SUNCOR ENERGY INC.</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="46%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:46.66%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="5%" valign="top" style="padding:0in 0in 0in 0in;width:5.84%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="47%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:47.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="46%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:46.66%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="5%" valign="top" style="padding:0in 0in 0in 0in;width:5.84%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="47%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:47.5%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.76%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date:</font></p>
  </td>
  <td width="41%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:41.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">April&nbsp;1, 2009</font></p>
  </td>
  <td width="5%" valign="top" style="padding:0in 0in 0in 0in;width:5.84%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>
  </td>
  <td width="44%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:44.16%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&#147;Arlene Strom&#148;</font></p>
  </td>
 </tr>
 <tr>
  <td width="46%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:46.66%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="5%" valign="top" style="padding:0in 0in 0in 0in;width:5.84%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="44%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:44.16%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Arlene Strom</font></p>
  </td>
 </tr>
 <tr>
  <td width="46%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:46.66%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="5%" valign="top" style="padding:0in 0in 0in 0in;width:5.84%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.34%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="44%" valign="top" style="padding:0in 0in 0in 0in;width:44.16%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Assistant Corporate
  Secretary</font></p>
  </td>
 </tr>
 <tr height="0">
  <td width="36" style="border:none;"></td>
  <td width="313" style="border:none;"></td>
  <td width="44" style="border:none;"></td>
  <td width="25" style="border:none;"></td>
  <td width="330" style="border:none;"></td>
 </tr>
</table>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2</font></p>

<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='2',FILE='C:\JMS\105808\09-8410-3\task3463628\8410-3-ba.htm',USER='105808',CD='Apr  1 20:08 2009' -->


<br clear="all" style="page-break-before:always;">


<div>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">EXHIBIT
INDEX</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="7%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:7.26%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.32%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="90%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:90.42%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Description&nbsp;of&nbsp;Exhibit</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="7%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:7.26%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.32%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="90%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:90.42%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="7%" valign="top" style="padding:0in 0in 0in 0in;width:7.26%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">99.1</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.32%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="90%" valign="top" style="padding:0in 0in 0in 0in;width:90.42%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Material Change Report
  dated March&nbsp;31, 2009</font></p>
  </td>
 </tr>
</table>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3</font></p>

<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='3',FILE='C:\JMS\105808\09-8410-3\task3463628\8410-3-ba.htm',USER='105808',CD='Apr  1 20:08 2009' -->


</body>

</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>a09-8410_3ex99d1.htm
<DESCRIPTION>EX-99.1
<TEXT>

<html>

<head>





</head>

<body lang="EN-US">

<div>

<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">EXHIBIT
99.1</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="font-weight:bold;margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;">Material
Change Report dated March&nbsp;31, 2009</font></b></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='',FILE='C:\JMS\105808\09-8410-3\task3463628\8410-3-mm.htm',USER='105808',CD='Apr  1 20:02 2009' -->



<br clear="all" style="page-break-before:always;">
<div style="font-family:Times New Roman;">

<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">FORM&nbsp;51-102F3</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">MATERIAL CHANGE REPORT</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">1.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Name and
Address of Company:</font></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="line-height:normal;margin:0in .5in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Suncor Energy Inc. (&#147;<b>Suncor</b>&#148;)</font></p>

<p align="left" style="line-height:normal;margin:0in .5in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">P.O.&nbsp;Box 38</font></p>

<p align="left" style="line-height:normal;margin:0in .5in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">112 - 4th Avenue S.W.</font></p>

<p align="left" style="line-height:normal;margin:0in .5in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Calgary, AB T2P 2V5</font></p>

<p align="left" style="line-height:normal;margin:0in .5in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">2.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Date of
Material Change:</font></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">March&nbsp;22, 2009</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">3.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">News
Release:</font></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">A press release disclosing in detail the material
summarized in this material change report was disseminated through the
facilities of CNW Group on March&nbsp;23, 2009 and would have been received by
the securities commissions where Suncor is a &#147;reporting issuer&#148; and the stock
exchanges on which the securities of Suncor are listed and posted for trading
in the normal course of their dissemination.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">4.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Summary
of Material Change:</font></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Suncor and Petro-Canada entered into an agreement
dated March&nbsp;22, 2009 (the &#147;<b>Arrangement Agreement</b>&#148;)
pursuant to which they have agreed, subject to certain conditions, to
amalgamate the two companies pursuant to a Plan of Arrangement (the &#147;<b>Arrangement</b>&#148;) to be effected under the <i>Canada
Business Corporations Act</i> (the &#147;<b>CBCA</b>&#148;).&#160; Upon completion of the Arrangement, it is
expected that combined entity will operate under the Suncor name.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">5.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Full
Description of Material Change:</font></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">5.1&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Full
Description of Material Change</font></b></p>

<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">The Arrangement</font></i></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Under the terms of the Arrangement Agreement entered
into between Suncor and Petro-Canada, the proposed Arrangement will be effected
by way of a Plan of Arrangement completed under the CBCA.&#160; The Arrangement will feature a common share
conversion through which Petro-Canada common shareholders will receive 1.28 common
shares of the company continuing as the successor to Suncor and Petro-Canada
under the CBCA following the effectiveness of the Arrangement (&#147;<b>Amalco</b>&#148;) for each common share of Petro-Canada they own and
each Suncor common shareholder will receive one common share of Amalco (an &#147;<b>Amalco Share</b>&#148;) for each common share of Suncor they own.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The Arrangement will be structured to allow Suncor and
Petro-Canada shareholders to receive Amalco Shares on a tax-deferred basis for
Canadian and United States income tax purposes.&#160;
It is also intended the Arrangement will be structured to qualify for
the exemption from registration provided by section 3(a)(10)&nbsp;of the <i>U.S. Securities Act of 1933</i>, as amended.&#160; Amalco will be governed by the <i>Petro-Canada Public Participation Act</i> (the &#147;<b>Petro-Canada Act</b>&#148;), unless and until the Petro-Canada Act is
repealed.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Completion of the Arrangement will require the
satisfaction of several conditions contemplated in the Arrangement Agreement,
including the approval of Suncor and Petro-Canada shareholders, compliance with
the <i>Competition Act</i> (Canada), and
satisfaction of other customary approvals including regulatory, stock exchange,
and Court of Queen&#146;s Bench of Alberta approvals.&#160; The required shareholder approvals will be
two-thirds of the votes cast by holders of Suncor common shares and two-thirds
of the votes cast by holders of Petro-Canada common shares at meetings of
shareholders of Suncor and Petro-Canada,</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='',FILE='C:\JMS\105808\09-8410-3\task3463628\8410-3-mm-01.htm',USER='105808',CD='Apr  1 20:03 2009' -->


<br clear="all" style="page-break-before:always;">


<div>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">respectively, held to consider the Arrangement.&#160; Suncor and Petro-Canada intend to defer their
annual meetings so that combined annual and special shareholder meetings for
each of Suncor and Petro-Canada can be held in early June&nbsp;2009 to consider
annual shareholder business and the Arrangement.&#160; Suncor and Petro-Canada anticipate that the
Arrangement will be completed in the third quarter of 2009.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">An information circular detailing the Arrangement is
anticipated to be mailed to Suncor and Petro-Canada shareholders in early May&nbsp;2009.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">Management Team</font></i></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Amalco will be led by Richard L. George, the current
President and Chief Executive Officer of Suncor, as President and Chief
Executive Officer and Ron A. Brenneman, the current President and Chief
Executive Officer of Petro-Canada, as Executive Vice-Chairman.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">Combined Board of Directors</font></i></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Amalco&#146;s board of directors is expected to be
comprised of 12 members, including eight members from Suncor&#146;s current board
and four members from Petro-Canada&#146;s current board. John Ferguson, the Chairman
of Suncor&#146;s board, will serve as the initial Chairman of the board of directors
of Amalco.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">Board Approvals</font></i></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The board of directors of Suncor has approved the
Arrangement Agreement, has determined, based in part upon verbal fairness
opinions received from its financial advisors, that the Arrangement is fair to
the Suncor Shareholders, that the Arrangement and the entering into of the
Arrangement Agreement are in the best interests of Suncor and has determined
that it will recommend that the Suncor shareholders vote in favour of the
Arrangement.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The board of directors of Petro-Canada has approved
the Arrangement Agreement, has determined, based in part upon verbal fairness
opinions received from its financial advisors, that the Arrangement is fair to
the Petro-Canada Shareholders, that the Arrangement and the entering into of
the Arrangement Agreement are in the best interests of Petro-Canada and has
determined that it will recommend that the Petro-Canada shareholders vote in
favour of the Arrangement.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">Advisors</font></i></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">CIBC World Markets Inc. and Morgan Stanley Canada
Limited are acting as financial advisors to Suncor for the purposes of this
transaction and RBC Dominion Securities Inc. and Deutsche Bank Securities Inc.
are acting as financial advisors for Petro-Canada.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">The Arrangement Agreement</font></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The Arrangement is being effected pursuant to the
Arrangement Agreement. The Arrangement Agreement contains covenants,
representations and warranties of and from each of Suncor and Petro-Canada and
various conditions precedent, both mutual and with respect to each entity.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">The following is a summary of certain
provisions of the Arrangement Agreement.&#160;
The Arrangement Agreement was filed on March&nbsp;23, 2009 as a &#147;Material
document&#148; under Suncor&#146;s SEDAR profile.&#160;
Capitalized terms not otherwise defined in this Material Change Report
have the meanings assigned thereto in the Arrangement Agreement.</font></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;page-break-after:avoid;text-align:left;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">Mutual Covenants Regarding
Non-Solicitation</font></i></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;page-break-after:avoid;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Under the Arrangement Agreement, each of Suncor and
Petro-Canada has agreed to certain non-solicitation covenants as follows:</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2</font></p>

<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='2',FILE='C:\JMS\105808\09-8410-3\task3463628\8410-3-mm-01.htm',USER='105808',CD='Apr  1 20:03 2009' -->


<br clear="all" style="page-break-before:always;">


<div style="font-family:Times New Roman;">

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(a)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Each Party will immediately
cease and cause to be terminated all existing discussions and negotiations
(including through any advisors or other parties on its behalf), if any, with
any parties conducted before the date of the Arrangement Agreement with respect
to any Acquisition Proposal (as defined below) in respect of such Party and
will immediately request the return or destruction of all information
respecting such Party provided to any third parties who have entered into a
confidentiality agreement with such Party relating to an Acquisition Proposal
in respect of such Party and will use all commercial efforts to ensure that
such requests are honoured.</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">An &#147;<b>Acquisition Proposal</b>&#148;
means any inquiry or the making of any proposal to a Party or its shareholders
from any Person or group of Persons &#147;acting jointly or in concert&#148; (within the
meaning of Multilateral Instrument 62-104 &#151; <i>Take-Over Bids and Issuer
Bids</i>) which constitutes, or may reasonably be expected to lead to
(in either case whether in one transaction or a series of transactions): (a)&nbsp;an
acquisition from such Party of 20% or more of the voting securities of such
Party or its Material Subsidiaries; (b)&nbsp;any acquisition of a substantial
amount of assets (or any lease, long term supply agreement or other arrangement
having the same economic effect as a purchase or sale of a substantial amount
of assets) of such Party and its Subsidiaries taken as a whole; (c)&nbsp;an
amalgamation, arrangement, merger, or consolidation involving such Party or its
Material Subsidiaries; (d)&nbsp;any take-over bid, issuer bid, exchange offer,
recapitalization, liquidation, dissolution, reorganization or similar
transaction involving such Party or its Material Subsidiaries; or (e)&nbsp;any
other transaction, the consummation of which would or could reasonably be
expected to impede, interfere with, prevent or delay the transactions</font><font face="Times New Roman">
contemplated by the Arrangement Agreement or the Arrangement or which would or
could reasonably be expected to materially reduce the benefits to a Party under
the Arrangement Agreement or the Arrangement; except that for the purpose of
the definition of &#147;<b>Superior Proposal</b>&#148;,
the references in this definition of &#147;<b>Acquisition Proposal</b>&#148;
to &#147;20% or more of the voting securities&#148; shall be deemed to be references to &#147;50%
or more of the voting securities&#148;, and the references to &#147;a substantial amount
of assets&#148; shall be deemed to be references to &#147;all or substantially all of the
assets&#148;.</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(b)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Neither Suncor nor
Petro-Canada will, directly or indirectly, do or authorize or permit any of its
Representatives to do any of the following:</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(i)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">solicit, knowingly facilitate,
initiate or encourage any Acquisition Proposal in respect of such Party;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(ii)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">enter into or participate in
any discussions or negotiations regarding an Acquisition Proposal, or furnish
to any other Person any information with respect to its businesses, properties,
operations, prospects or conditions (financial or otherwise) in connection with
an Acquisition Proposal or otherwise cooperate in any way with, or assist or
participate in, facilitate or encourage, any effort or attempt of any other
Person to do or seek to do any of the foregoing;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(iii)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">waive, or otherwise forbear in
the enforcement of, or enter into or participate in any discussions, negotiations
or agreements to waive or otherwise forbear in respect of, any rights or other
benefits under confidential information agreements, including any &#147;standstill
provisions&#148; thereunder; or</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(iv)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">accept, recommend, approve or
enter into an agreement to implement an Acquisition Proposal;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">provided, however, that
notwithstanding any other provision in the Arrangement Agreement, each of
Suncor and Petro-Canada and its officers, directors and advisors may prior to
the approval of the Suncor Shareholders&#146; Arrangement Resolution, in respect of
Suncor&#146;s obligations, or the Petro-Canada Shareholders&#146; Arrangement Resolution,
in respect of Petro-Canada&#146;s obligations:</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(v)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">enter into or participate in
any discussions or negotiations with a third party who, without any solicitation,
initiation or encouragement, directly or indirectly, after the date of the </font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3</font></p>

<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='3',FILE='C:\JMS\105808\09-8410-3\task3463628\8410-3-mm-01.htm',USER='105808',CD='Apr  1 20:03 2009' -->


<br clear="all" style="page-break-before:always;">


<div style="font-family:Times New Roman;">

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Arrangement Agreement, by Suncor or
Petro-Canada or any of its Representatives, seeks to initiate such discussions
or negotiations and, subject to execution of a confidentiality and standstill
agreement in favour of such Party substantially similar to the Confidentiality
Agreement entered into between the Parties (provided that such confidentiality
agreement will provide for disclosure thereof (along with all information
provided thereunder) to the other Party as set out below), may furnish to such
third party information concerning such Party and its business, properties and
assets, in each case if, and only to the extent that:</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 2.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">A.</font><font size="1" face="Times New Roman" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font face="Times New Roman">the
third party has first made a written <i>bona fide</i>
Acquisition Proposal which the board of directors of the Party subject to the
Acquisition Proposal determines in good faith:&#160;
(1)&nbsp;that the funds or other consideration necessary to complete the
Acquisition Proposal are or are reasonably likely to be available to fund
completion of the Acquisition Proposal at the time and on the basis set out
therein; (2)&nbsp;after consultation with its financial advisor(s), would or
would be reasonably likely to, if consummated in accordance with its terms,
result in a transaction financially superior for shareholders of such Party to
the transaction contemplated by the Arrangement Agreement; (3)&nbsp;after
consultation with its financial advisor(s)&nbsp;and outside counsel, is
reasonably likely to be consummated at the time and on the terms proposed,
taking into account all legal, financial, regulatory and other aspects of such
Acquisition Proposal; and (4)&nbsp;after receiving the advice of outside
counsel, as reflected in the minutes of the board of directors of such Party,
that the taking of such action is necessary for the board of directors of such
Party to act in a manner consistent with its fiduciary duties under applicable
Laws (a &#147;<b>Superior Proposal</b>&#148;); and</font></p>

<p align="left" style="margin:0in 0in .0001pt 2.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 2.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">B.</font><font size="1" face="Times New Roman" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font face="Times New Roman">prior
to furnishing such information to or entering into or participating in any such
discussions or negotiations with such third party, the Party will (1)&nbsp;provide
prompt notice to the other Party to the effect that it is furnishing
information to or entering into or participating in discussions or negotiations
with such third party, together with a copy of the confidentiality and
standstill agreement referenced above and, if not previously provided to such
other Party, copies of all information provided to such third party
concurrently with the provision of such information to such third party, (2)&nbsp;notify
the other Party orally and in writing of any inquiries, offers or proposals
with respect to an actual or contemplated Superior Proposal (which written
notice will include a copy of any such proposal (and any amendments or
supplements thereto), the identity of the Person making it, if not previously
provided to the other Party, and copies of all information provided to the
third party), within 24 hours of the receipt thereof, and (3)&nbsp;keep the
other Party informed of the status and details of any such inquiry, offer or
proposal and answer the other Party&#146;s reasonable questions with respect
thereto;</font></p>

<p align="left" style="margin:0in 0in .0001pt 2.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(vi)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">comply with Multilateral
Instrument 62-104 &#151; <i>Take-Over Bids and Issuer
Bids</i> and similar provisions under Canadian Securities Laws and U.S.
Securities Laws relating to the provision of directors&#146; circulars and make
appropriate disclosure with respect thereto to its securityholders; and</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(vii)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">accept, recommend, approve or
enter into an agreement to implement a Superior Proposal from a third party,
but only if prior to such acceptance, recommendation, approval or
implementation, (A)&nbsp;the board of directors of the Party subject to the
Superior Proposal concludes in good faith, after considering all proposals to
adjust the terms and conditions of the Arrangement Agreement as contemplated by
paragraph (c)&nbsp;immediately below and after receiving the advice of outside
counsel as reflected in minutes of the board of directors of such Party, that
the taking of such action is necessary for such board of directors to act in a
manner consistent with its fiduciary duties under applicable Laws, </font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4</font></p>

<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='4',FILE='C:\JMS\105808\09-8410-3\task3463628\8410-3-mm-01.htm',USER='105808',CD='Apr  1 20:03 2009' -->


<br clear="all" style="page-break-before:always;">


<div style="font-family:Times New Roman;">

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(B)&nbsp;such Party complies with its
obligations set forth in paragraph (c)&nbsp;immediately below, and (C)&nbsp;such
Party terminates the Arrangement Agreement in accordance with the provisions
outlined in paragraph (f)&nbsp;under the heading &#147;Termination&#148; below and
concurrently pays the required amount(s)&nbsp;outlined under the heading &#147;Agreement
as to Damages&#148; below to the other Party.</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(c)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Following receipt of a
Superior Proposal, the Party subject to such Superior Proposal will give the
other Party, orally and in writing, at least 72 hours advance notice of any
decision by the board of directors of the Party subject to such Superior
Proposal to accept, recommend, approve or enter into an agreement to implement
a Superior Proposal, which notice will confirm that such board of directors has
determined that such Acquisition Proposal constitutes a Superior Proposal, will
identify the third party making the Superior Proposal and will provide a true
and complete copy thereof, including all financing documents, and any
amendments thereto. During such 72 hour period, the Party subject to such
Superior Proposal agrees not to accept, recommend, approve or enter into any
agreement to implement such Superior Proposal and not to release the party
making the Superior Proposal from any standstill provisions and will not
withdraw, redefine, modify or change its recommendation in respect of the
Arrangement. In addition, during such 72 hour period the Party subject to such
Superior Proposal will, and will cause its financial and legal advisors to,
negotiate in good faith with the other Party and its financial and legal
advisors to make such adjustments in the terms and conditions of the
Arrangement Agreement and the Arrangement as would enable the Party subject to
such Superior Proposal to proceed with the Arrangement as amended rather than the
Superior Proposal. In the event the other Party proposes to amend the
Arrangement Agreement and the Arrangement on a basis such that the board of
directors of the Party subject to the Superior Proposal determines that the
proposed transaction is no longer a Superior Proposal and so advises the board
of directors of the other Party prior to the expiry of such period, the board
of directors of the Party subject to such Acquisition Proposal will not accept,
recommend, approve or enter into any agreement to implement such Acquisition
Proposal and will not release the party making the Acquisition Proposal from
any standstill provisions and will not withdraw, redefine, modify or change its
recommendation in respect of the Arrangement. In the event that a Party provides
the notice contemplated by this paragraph on a date which is less than five
business days prior to the Suncor Shareholders&#146; Meeting or the Petro-Canada
Shareholders&#146; Meeting, as the case may be, the other Party will be entitled to (i)&nbsp;adjourn
or postpone its shareholders&#146; meeting and (ii)&nbsp;require the Party subject
to the Superior Proposal to adjourn or postpone its shareholders&#146; meeting, in
each case to a date that is not more than 10 business days after the date of
such notice.</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(d)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Nothing contained in the
Arrangement Agreement shall prohibit the board of directors of any Party from
withdrawing, modifying, qualifying or changing its recommendation to its
shareholders in respect of the transactions contemplated by the Arrangement
Agreement prior to the approval of the Arrangement by such shareholders, if the
board of directors of such Party determines, in good faith (after consultation
with its financial advisor(s)&nbsp;and after receiving written advice of
outside counsel), that such withdrawal, modification, qualification or change
is necessary for the board of directors to act in a manner consistent with its
fiduciary duties under applicable Laws; provided that (i)&nbsp;not less than 48
hours before the board of directors considers any proposal in respect of any
such withdrawal, modification, qualification or change, such Party shall give
the other Party written notice of such proposal and promptly advise the other
Party of the proposed consideration of such proposal; and (ii)&nbsp;the
foregoing shall not relieve a Party from its obligation to proceed to call and
hold the applicable shareholders&#146; meeting and to hold the vote on the Suncor
Shareholders&#146; Arrangement Resolution or the Petro-Canada Shareholders&#146;
Arrangement Resolution, as the case may be, (provided that, except as required
under applicable Laws, such Party shall be relieved from its obligations to
actively solicit proxies in favour of the Arrangement in such circumstances),
except in circumstances where the Arrangement Agreement is terminated in accordance
with the terms thereof.</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(e)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Each Party will ensure that
its Representatives are aware of the foregoing provisions of the Arrangement
Agreement respecting non-solicitation covenants applicable to such Party. Each </font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">5</font></p>

<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='5',FILE='C:\JMS\105808\09-8410-3\task3463628\8410-3-mm-01.htm',USER='105808',CD='Apr  1 20:03 2009' -->


<br clear="all" style="page-break-before:always;">


<div style="font-family:Times New Roman;">

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Party will be responsible for any breach of
such provisions of the Arrangement Agreement by such Party&#146;s Representatives.</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">Agreement as to Damages</font></i></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the
Arrangement Agreement, each of Suncor and Petro-Canada have agreed that if at any
time after the execution of the Arrangement Agreement and prior to its
termination:</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(a)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">the board of directors of one
Party has withdrawn, modified, qualified or changed any of its recommendations
or determinations in respect of the Arrangement, as outlined in the Arrangement
Agreement, in a manner adverse to the other Party or will have resolved to do
so prior to the Effective Date, or has failed to publicly reconfirm any such
recommendation upon the request of the other Party prior to the earlier of ten
days following such request or 72 hours prior to the applicable shareholders&#146;
meeting (unless the Party requesting such reconfirmation is then in material
breach of its obligations under the Arrangement Agreement and such withdrawal,
change or failure relates to such breach);</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(b)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">a <i>bona fide</i>
Acquisition Proposal is publicly announced, proposed, offered or made to the
shareholders of either Party or any Person will have publicly announced an
intention to make a <i>bona fide</i>
Acquisition Proposal in respect of a Party and, after such Acquisition Proposal
will have been made known, made or announced, Suncor Shareholders (in the case
of an Acquisition Proposal in respect of Suncor) or Petro-Canada Shareholders
(in the case of an Acquisition Proposal in respect of Petro-Canada), as the
case may be, do not approve the Arrangement or vote upon the Suncor
Shareholders&#146; Arrangement Resolution or the Petro-Canada Shareholders&#146;
Arrangement Resolution, as the case may be, and such Acquisition Proposal or an
amended version thereof relating to Suncor or Petro-Canada, as the case may be,
is consummated or effected as applicable within six months of the date the
first Acquisition Proposal is publicly announced, proposed, offered or made;
and for the purpose of the foregoing, the definition of &#147;<b>Acquisition
Proposal</b>&#148; in the Arrangement Agreement to &#147;20% or more of the voting
securities&#148; will be deemed to be references to &#147;50% or more of the voting
securities&#148;, and the references to &#147;a substantial amount of assets&#148; will be
deemed to be references to &#147;all or substantially all of the assets&#148;;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(c)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">the board of directors of a
Party accepts, recommends, approves or enters into an agreement to implement a
Superior Proposal; or</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(d)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">a Party is in breach of any of
its covenants made in the Arrangement Agreement, which breach individually or
in the aggregate causes or would reasonably be expected to cause a Material
Adverse Change with respect to such Party or materially impedes or would
reasonably be expected to materially impede the completion of the Arrangement,
and such Party fails to cure such breach within 10 business days after receipt
of written notice thereof from the other Party;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(each of the above being
a &#147;<b>Damages Event</b>&#148;) then in the event of
the termination of the Arrangement Agreement pursuant to the provisions set
forth under the heading &#147;Termination&#148; below as a result of such Damages Event, (i)&nbsp;if
Suncor is the subject of any Damages Event, it will pay to Petro-Canada, within
two business days of the first to occur of the foregoing, a fee in the amount
of $300 million as liquidated damages in immediately available funds to an
account designated by Petro-Canada and (ii)&nbsp;if Petro-Canada is the subject
of any Damages Event, it will pay to Suncor, within two business days of the
first to occur of the foregoing, a fee in the amount of $300 million as
liquidated damages in immediately available funds to an account designated by
Suncor, and after such Damages Event but prior to payment of such amount, the
Party required to make such payment will be deemed to hold such funds in trust
for the other Party, provided that in the case of a Damages Event pursuant to
paragraph (c)&nbsp;above (if the board of directors of a Party accepts,
recommends, approves or enters into an agreement to implement a Superior
Proposal), such payment shall be made by a Party to the other Party
concurrently with the acceptance, recommending, approving or entering into of
the Superior Proposal by such Party. Suncor will </font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">6</font></p>

<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='6',FILE='C:\JMS\105808\09-8410-3\task3463628\8410-3-mm-01.htm',USER='105808',CD='Apr  1 20:03 2009' -->


<br clear="all" style="page-break-before:always;">


<div style="font-family:Times New Roman;">

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">only be obligated to pay
a maximum of $300 million pursuant to such provisions of the Arrangement
Agreement and Petro-Canada will only be obligated to pay a maximum of $300
million pursuant to such provisions of the Arrangement Agreement.</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">A &#147;<b>Material
Adverse Change</b>&#148; or &#147;<b>Material Adverse Effect</b>&#148;
means, with respect to any Person, any fact or state of facts, circumstance,
change, effect, occurrence or event which: (a)&nbsp;either individually is or
in the aggregate are, or individually or in the aggregate would reasonably be
expected to be, material and adverse to the business, operations, results of
operations, properties, assets, liabilities, obligations (whether absolute,
accrued, conditional or otherwise) or condition (financial or otherwise) of
such Person and its Subsidiaries, on a consolidated basis, except to the extent
of any fact or state of facts, circumstance, change, effect, occurrence or
event resulting from or arising in connection with: (i)&nbsp;any change in
Canadian GAAP or changes in regulatory accounting requirements applicable to
the oil and gas, oil sands and oil shale exploration, development and
production businesses, the petrochemicals industry, and the business of
refining, marketing and distributing petroleum products (the &#147;<b>O&amp;G Business</b>&#148;); (ii)&nbsp;any change in global, national
or regional political conditions (including the outbreak of war or acts of
terrorism) or in general economic, business, regulatory, or market conditions
or in national or global financial or capital markets; (iii)&nbsp;any change
generally affecting the O&amp;G Business; (iv)&nbsp;any natural disaster; (v)&nbsp;any
decline in crude oil or natural gas prices on a current or forward basis; (vi)&nbsp;any
actions taken (or omitted to be taken) at the written request of the other
Party; or (vii)&nbsp;any action taken by the Person or any of its Subsidiaries
that is required pursuant to the Arrangement Agreement (excluding any
obligation to act in the ordinary course of business, but including any steps
taken pursuant to the mutual covenants of the Parties to obtain any required
regulatory approvals), provided, however, that with respect to clauses (i),
(ii), (iii)&nbsp;and (iv)&nbsp;such matter does not have a materially
disproportionate effect on the Person and its Subsidiaries, taken as a whole,
relative to comparable entities operating in the O&amp;G Business, and
references in certain sections of the Arrangement Agreement to dollar amounts
are not intended to be, and will not be deemed to be, illustrative or
interpretative for purposes of determining whether a &#147;Material Adverse Change&#148;
or a &#147;Material Adverse Effect&#148; has occurred; or (b)&nbsp;either individually or
in the aggregate prevents, or individually or in the aggregate would reasonably
be expected to prevent, the Person from performing its material obligations
under the Arrangement Agreement in any material respect;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">If the Arrangement
Agreement: (i)&nbsp;is terminated by a Party because of a breach of a
representation or warranty by the other Party that gives rise to a termination
right, or (ii)&nbsp;if the Arrangement Agreement is terminated by a Party
pursuant to paragraph (c)&nbsp;described under the heading &#147;Termination&#148; below
and at the time of such termination the other Party is in breach of its
representations, warranties or covenants in the Arrangement Agreement,
notwithstanding the availability of any cure period, the other Party shall pay
such terminating Party an amount equal to $20 million as reimbursement for its
out-of-pocket expenses incurred in connection with the Arrangement, provided
that if the terminating Party is in material breach of its obligations
hereunder at the time of the termination of the Arrangement Agreement such
amount will not be payable.</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">Liquidated Damages</font></i></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Each Party
acknowledges that the payment amounts set out in the Arrangement Agreement in
respect of a Damages Event, or in respect of fees, costs and expenses, are
payments of liquidated damages which are a genuine pre-estimate of the damages
which Suncor or Petro-Canada will suffer or incur as a result of the event
giving rise to such damages and resultant termination of the Arrangement
Agreement and are not penalties. Each Party irrevocably waives any right it may
have to raise as a defence that any such liquidated damages are excessive or
punitive. For greater certainty, the Parties agree that the payment of any such
amounts is the sole monetary remedy of Suncor and Petro-Canada;</font><font size="2" style="font-size:10.0pt;"> provided, however, that this
limitation will not apply in the event of fraud or wilful breach of the
Arrangement Agreement by a Party.</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">7</font></p>

<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='7',FILE='C:\JMS\105808\09-8410-3\task3463628\8410-3-mm-01.htm',USER='105808',CD='Apr  1 20:03 2009' -->



<br clear="all" style="page-break-before:always;">
<div style="font-family:Times New Roman;">

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">Indemnification</font></i></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Suncor and Petro-Canada agree that Amalco
will maintain in effect without any reduction in scope or coverage for six
years from the Effective Date customary policies of directors&#146; and officers&#146;
liability insurance providing protection comparable to the most favourable
protection provided by the policies maintained by Suncor and Petro-Canada and
their respective Subsidiaries as are in effect immediately prior to the
Effective Date and providing coverage on a &#147;trailing&#148; or &#147;run-off&#148; basis for
all present and former directors and officers of Suncor and Petro-Canada with
respect to claims arising from facts or events which occurred prior to the
Effective Date.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Suncor and Petro-Canada also agree that all
rights to indemnification or exculpation now existing in favour of present and
former officers and directors of each of Suncor and Petro-Canada will survive
the Arrangement and will continue in full force and effect for a period of not
less than six years from the Effective Date.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">Termination</font></i></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Suncor and Petro-Canada have agreed that the
Arrangement Agreement may be terminated at any time prior to the Effective
Date:</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(a)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>by mutual written consent of Suncor and Petro-Canada;</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(b)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>by either Suncor or Petro-Canada if the Arrangement Resolution will
have failed to receive the requisite vote of the appropriate shareholders for
approval at the Suncor Shareholders&#146; Meeting (including any adjournment or
postponement thereof) or Petro-Canada Shareholders&#146; Meeting (including any
adjournment or postponement thereof) in accordance with the Interim Order;</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(c)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>by either Suncor or Petro-Canada if the Effective Time will not have
occurred on or prior to March 31, 2010, except that this right to terminate the
Arrangement Agreement will not be available to any Party whose failure to
fulfill any of its obligations has been the cause of, or resulted in, the
failure of the Effective Time to occur by such date;</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(d)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>as provided for in the Arrangement Agreement, in the event of a
breach of representation, warranty, covenant or condition by a Party after
notice of such breach has been provided and the expiration of a ten-day cure
period as described under the heading &#147;Notice and Cure Provisions&#148; below;
provided that the Party seeking termination is not then in breach of the
Arrangement Agreement so as to cause any of the conditions to consummate the
transactions contemplated by the Arrangement Agreement, not to be satisfied;</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(e)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>by either Suncor or Petro-Canada upon the occurrence of a Damages
Event in respect of the other Party; or</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(f)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>by either Suncor or Petro-Canada to accept, recommend, approve or
enter into an agreement to implement a Superior Proposal in accordance with the
Arrangement Agreement, provided that such Party (i) has complied with its
obligations described under the heading &#147;Mutual Covenants Regarding
Non-Solicitation&#148; above and (ii) concurrently pays the amount(s) required under
the heading &#147;Agreement as to Damages&#148; above.</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Under the provisions of the Arrangement
Agreement, in the event of the termination of the Arrangement Agreement in the
circumstances set out above, the Arrangement Agreement will become void and
neither Party will have any liability or further obligation to the other Party
thereunder, except with respect to: (a) certain indemnification obligations set
forth in the Arrangement Agreement (including as described under the heading &#147;Indemnification&#148;
above), and (b) the payment of the fees outlined above under the heading &#147;Agreement
as to Damages&#148;, where applicable. However, no Party shall be relieved from
liability for any breach of any provision of the Arrangement Agreement and no
termination of the Arrangement Agreement </font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">8</font></p>

<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='8',FILE='C:\JMS\105541\09-8410-3\task3462154\8410-3-mm-03.htm',USER='105541',CD='Apr  1 04:25 2009' -->


<br clear="all" style="page-break-before:always;">


<div style="font-family:Times New Roman;">

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">will affect the obligations of the Parties
pursuant to the Confidentiality Agreement entered into between the Parties,
except to the extent specified therein.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">Conditions to the Arrangement</font></i></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">Mutual Conditions</font></i></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The respective obligations of the Parties
to consummate the transactions contemplated in the Arrangement Agreement, and
in particular the Arrangement, are subject to the satisfaction, on or before
the Effective Date or such other time specified, of the following conditions,
any of which may be waived by the mutual consent of such Parties without
prejudice to their right to rely on any other of such conditions:</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(a)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the Interim Order will have been granted in form and substance
satisfactory to each of the Parties, acting reasonably, and such order will not
have been set aside or modified in a manner unacceptable to either of the
Parties, acting reasonably, on appeal or otherwise;</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(b)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the Suncor Shareholders&#146; Arrangement Resolution will have been
passed by the Suncor Shareholders in accordance with the Interim Order;</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(c)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the Petro-Canada Shareholders&#146; Arrangement Resolution will have been
passed by the Petro-Canada Shareholders in accordance with the Interim Order;</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(d)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the Final Order will have been granted in form and substance
satisfactory to the Parties, acting reasonably, and will not have been set
aside or modified in a manner unacceptable to either of the Parties, acting
reasonably, on appeal or otherwise;</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(e)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the Articles of Arrangement to be filed with the Director in
accordance with the Arrangement Agreement will be in form and substance
satisfactory to each of the Parties, acting reasonably;</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(f)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>either one or more of the following will have occurred:</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(i)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the relevant waiting period in Section 123 of the <i>Competition Act</i> will have expired and there will be no order
issued by the Competition Tribunal under Section 92, 100 or 104 of the <i>Competition Ac</i>t and there will be no other agreement with
the Commissioner or between the Parties precluding completion of the
Arrangement, unless such order or agreement is on terms and conditions
acceptable to each of the Parties, acting reasonably;</p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(ii)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the Commissioner or her representative has issued a letter to the
Parties indicating that she does not intend to make an application under
section 92 of the <i>Competition Act</i> precluding
completion of the Arrangement contemplated by the Arrangement Agreement and any
terms and conditions attached to any such letter will be acceptable to each
Party, acting reasonably; or</p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(iii)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the Commissioner will have issued an advance ruling certificate
pursuant to Section 102 of the <i>Competition Act</i>
in respect of the transactions contemplated by the Arrangement Agreement in
form and substance acceptable to each Party, acting reasonably;</p>

<p align="left" style="margin:0in 0in .0001pt 1.5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(g)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the applicable waiting period (and any extension thereof) under the <i>Hart-Scott Rodino Antitrust Improvements Act of 1976</i> will
have expired or been earlier terminated;</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(h)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>in addition to the requirements above in paragraphs (f) and (g), all
other domestic and foreign regulatory (including any Laws that regulate
competition, antitrust, foreign investment or transportation), governmental and
third party approvals and consents required to be obtained, or that the Parties
mutually agree in writing to obtain in respect of the completion of the
Arrangement, and the expiry of applicable waiting periods necessary to complete
the </p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">9</font></p>

<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='9',FILE='C:\JMS\105541\09-8410-3\task3462154\8410-3-mm-03.htm',USER='105541',CD='Apr  1 04:25 2009' -->


<br clear="all" style="page-break-before:always;">


<div style="font-family:Times New Roman;">

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Arrangement,
will have occurred or been obtained on terms and conditions acceptable to the
Parties, each acting reasonably, including conditional approval to the listing
of the Amalco Shares issuable pursuant to the Arrangement and upon the exercise
of the Replacement Options on the TSX and approval, subject to official notice
of issuance, of the listing of such securities on the NYSE, and all applicable
domestic and foreign statutory and regulatory waiting periods will have expired
or have been terminated and no unresolved material objection or opposition will
have been filed, initiated or made during any applicable statutory or
regulatory period, except where the failure or failures to obtain such
approvals or consents, or for the applicable waiting periods to have expired or
terminated, would not be reasonably expected to have a Material Adverse Effect
on either of Suncor or Petro-Canada or, upon completion of the Arrangement,
Amalco;</font></p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(i)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>no act, action, suit, proceeding, objection or opposition will have
been threatened or taken, entered or promulgated before or by any Governmental
Entity or by any elected or appointed public official or private person in
Canada or elsewhere, whether or not having the force of Law, and no Law,
regulation, policy, judgment, decision, order, ruling or directive (whether or
not having the force of Law) will have been proposed, enacted, promulgated,
amended or applied, which would be reasonably expected to result in a Material
Adverse Change in respect of either or Suncor or Petro-Canada or, upon
completion of the Arrangement, Amalco; and</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(j)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the long term senior unsecured and unsubordinated debt of Amalco
will have a prospective long-term issuer credit rating of &#147;Baa3&#148; or better by
Moody&#146;s Investor Services, Inc. or &#147;BBB-&#148; or better by Standard &amp; Poor&#146;s.</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">Suncor Conditions</font></i></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The obligation of Suncor to consummate the
transactions contemplated in the Arrangement Agreement, and in particular the
Arrangement, is subject to the satisfaction, on or before the Effective Date or
such other time specified, of the following conditions:</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(a)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the representations and warranties made by Petro-Canada in the
Arrangement Agreement will be true and correct as of the Effective Date as if
made on and as of such date (except to the extent such representations and
warranties speak as of an earlier date or except as affected by transactions
contemplated or permitted by the Arrangement Agreement), except where the
failure of such representations and warranties to be true and complete,
individually or in the aggregate, would not result or would not reasonably be
expected to result in a Material Adverse Change in respect of Petro-Canada or
would not, or would not reasonably be expected to, materially impede completion
of the Arrangement, and Petro-Canada will have provided to Suncor a certificate
of two senior officers of Petro-Canada certifying the foregoing on the
Effective Date;</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(b)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Petro-Canada will have complied in all material respects with its
covenants in the Arrangement Agreement, except where the failure to comply in
all material respects with its covenants, individually or in the aggregate,
would not result or would not reasonably be expected to result in a Material
Adverse Change in respect of Petro-Canada or would not, or would not reasonably
be expected to, materially impede completion of the Arrangement, and
Petro-Canada will have provided to Suncor a certificate of two senior officers
of Petro-Canada certifying compliance with such covenants on the Effective
Date;</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(c)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>no Material Adverse Change in respect of Petro-Canada will have
occurred after the date of the Arrangement Agreement and prior to the Effective
Date; and</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(d)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>holders of such number of Suncor Shares and Petro-Canada Shares
that, in the aggregate, would constitute not greater than 2% of the number of
Amalco Shares that would be outstanding following completion of the Arrangement
(assuming for the purpose of calculating the outstanding number of Amalco
Shares that there are no holders of Suncor Shares and Petro-Canada Shares who
have exercised rights of dissent), will have validly exercised rights of
dissent in respect of the Arrangement that have not been withdrawn as of the
Effective Date.</p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">10</font></p>

<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='10',FILE='C:\JMS\105541\09-8410-3\task3462154\8410-3-mm-03.htm',USER='105541',CD='Apr  1 04:25 2009' -->


<br clear="all" style="page-break-before:always;">


<div style="font-family:Times New Roman;">

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The foregoing conditions are for the
exclusive benefit of Suncor and may be asserted by Suncor regardless of the
circumstances or may be waived in writing by Suncor in its sole discretion, in
whole or in part, at any time and from time to time without prejudice to any
other rights which Suncor may have.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">Petro-Canada Conditions</font></i></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The obligation of Petro-Canada to
consummate the transactions contemplated in the Arrangement Agreement, and in
particular the Arrangement, is subject to the satisfaction, on or before the
Effective Date or such other time specified, of the following conditions:</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(a)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the representations and warranties made by Suncor in the Arrangement
Agreement will be true and correct as of the Effective Date as if made on and
as of such date (except to the extent such representations and warranties speak
as of an earlier date or except as affected by transactions contemplated or
permitted by the Arrangement Agreement), except where the failure of such
representations and warranties to be true and complete, individually or in the
aggregate, would not result or would not reasonably be expected to result in a
Material Adverse Change in respect of Suncor or would not, or would not
reasonably be expected to, materially impede completion of the Arrangement, and
Suncor will have provided to Petro-Canada a certificate of two senior officers
of Suncor certifying the foregoing on the Effective Date;</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(b)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Suncor will have complied in all material respects with its
covenants in the Arrangement Agreement, except where the failure to comply in
all material respects with its covenants, individually or in the aggregate,
would not result or would not reasonably be expected to result in a Material
Adverse Change in respect of Suncor or would not, or would not reasonably be
expected to, materially impede completion of the Arrangement, and Suncor will
have provided to Petro-Canada a certificate of two senior officers of Suncor
certifying compliance with such covenants on the Effective Date; and</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(c)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>no Material Adverse Change in respect of Suncor will have occurred
after the date of the Arrangement Agreement and prior to the Effective Date.</p>

<p align="left" style="margin:0in 0in .0001pt 1.0in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The foregoing conditions are for the
exclusive benefit of Petro-Canada and may be asserted by Petro-Canada regardless
of the circumstances or may be waived by Petro-Canada in its sole discretion,
in whole or in part, at any time and from time to time without prejudice to any
other rights which Petro-Canada may have.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">Notice and Cure Provisions</font></i></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the Arrangement Agreement,
Suncor and Petro-Canada are required to give prompt notice to the other of the
occurrence, or failure to occur, at any time from the date of the Arrangement
Agreement until the Effective Date, of any event or state of facts which occurrence
or failure would, or would be likely to: (a) cause any of the representations
or warranties of either Party contained in the Arrangement Agreement to be
untrue or inaccurate on the date of the Arrangement Agreement or at the
Effective Date; or (b) result in the failure to comply with or satisfy any
covenant, condition or agreement to be complied with or satisfied by either
Party prior to or at the Effective Date.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">If any of the conditions of the Arrangement
as outlined the Arrangement Agreement (as described above) will not be complied
with or waived by the Party for whose benefit such conditions are provided on
or before the date required for the performance thereof, then a Party for whose
benefit the condition precedent is provided may rescind and terminate the
Arrangement Agreement as provided in paragraph (d) under the heading &#147;Termination&#148;
above; provided that neither Suncor nor Petro-Canada may elect to rescind and
terminate the Arrangement Agreement pursuant to the conditions contained in the
Arrangement Agreement (as described above) or exercise any termination right
arising therefrom unless forthwith, and in any event prior to the issuance of
the Certificate by the Director, the Party intending to rely thereon has
delivered a written notice to the other Party specifying in reasonable detail
all breaches of covenants, inaccuracies of </font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">11</font></p>

<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='11',FILE='C:\JMS\105541\09-8410-3\task3462154\8410-3-mm-03.htm',USER='105541',CD='Apr  1 04:25 2009' -->


<br clear="all" style="page-break-before:always;">


<div style="font-family:Times New Roman;">

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">representations and warranties or other
matters which the Party delivering such notice is asserting as the basis for
the non-fulfillment of the applicable condition or the availability of a
termination right, as the case may be. If any such notice is delivered,
provided that a Party is proceeding diligently to cure any such matter capable
of cure, no Party may terminate the Arrangement Agreement until the expiration
of a period of 10 business days from the date of receipt of such notice. If
such notice has been delivered prior to the date of the Suncor Shareholders&#146;
Meeting or the Petro-Canada Shareholders&#146; Meeting, Suncor or Petro-Canada, as
the case may be, may elect to postpone the meeting of its shareholders until
the expiry of such period.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">5.2&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; Disclosure for
Restructuring Transactions</font></b></p>

<p align="left" style="margin:0in 0in .0001pt;text-align:left;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Not applicable.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">6.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Reliance on Subsection 7.1(2) or (3) of National Instrument 51-102:</b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Not applicable.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">7.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Omitted Information:</b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Not applicable.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">8.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Executive Officer:</b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">For further information, contact J. Kenneth
Alley, Senior Vice President, Chief Financial Officer of Suncor, by telephone
at (403) 269-8100.</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">9.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Date of Report:</b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">March 31, 2009</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">Advisory Regarding
Forward-Looking Statements and Forward-Looking Information</font></i></b></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="font-size:10.0pt;margin:0in 0in .0001pt .5in;text-align:left;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">This material change report
contains forward-looking statements and forward-looking information within the
meaning of applicable securities laws. The use of any of the words &#147;expect&#148;, &#147;anticipate&#148;,
&#147;continue&#148;, &#147;estimate&#148;, &#147;objective&#148;, &#147;ongoing&#148;, &#147;may&#148;, &#147;will&#148;, &#147;project&#148;, &#147;should&#148;,
&#147;believe&#148;, &#147;plans&#148;, &#147;intends&#148; and similar expressions are intended to identify
forward-looking statements or information. More particularly and without
limitation, this material change report contains forward looking statements and
information concerning: the name, board of directors and leadership of Amalco;
and the anticipated tax treatment of the proposed merger for shareholders</font></i>.</p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">This material change report also
contains forward-looking statements and information concerning the anticipated
completion of the Arrangement and the anticipated timing for completion of the
Arrangement. Suncor has provided these anticipated times in reliance on certain
assumptions that it believes are reasonable at of the date of this material
change report, including assumptions as to the time required to prepare and
mail the shareholder meeting materials; the timing of receipt of the necessary
regulatory, court and other third party approvals; and the time necessary to
satisfy the conditions to the closing of Arrangement. These dates may change
for a number of reasons, including unforeseen delays in preparing meeting
materials, inability to secure necessary regulatory, court or other third party
approvals in the time assumed or the need for additional time to satisfy the
conditions to the completion of the Arrangement. As a result of the foregoing,
readers should not place undue reliance on the forward-looking statements and
information contained in this material change report concerning these times.</font></i></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">The forward-looking statements
and information in this material change report are based on certain key
expectations and assumptions made by Suncor, including expectations and
assumptions concerning: the receipt, in a timely manner, of regulatory,
security holder and third party approvals in respect of the </font></i></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">12</font></p>

<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='12',FILE='C:\JMS\105541\09-8410-3\task3462154\8410-3-mm-03.htm',USER='105541',CD='Apr  1 04:25 2009' -->


<br clear="all" style="page-break-before:always;">


<div>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">Arrangement. Although Suncor
believes that the expectations and assumptions on which such forward-looking
statements and information are based are reasonable, undue reliance should not
be placed on the forward-looking statements and information because Suncor can
give no assurance that they will prove to be correct.</font></i></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">Since forward-looking statements
and information address future events and conditions, by their very nature they
involve inherent risks and uncertainties. Actual results could differ
materially from those currently anticipated due to a number of factors and
risks. These include, but are not limited to the failure to obtain required
regulatory, security holder and other third party approvals in respect of the
Arrangement (or to do so in a timely manner); and changes in legislation,
including but not limited to tax and antitrust laws.</font></i></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">Readers are cautioned that the
foregoing list of factors is not exhaustive. Additional information on these
and other factors that could affect Suncor&#146;s or Petro-Canada&#146;s or Amalco&#146;s
operations or financial results are included in reports on file with applicable
securities regulatory authorities and may be accessed through the SEDAR website
(www.sedar.com), the SEC&#146;s website (www.sec.gov) or at Suncor&#146;s website
(www.suncor.com).</font></i></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="left" style="margin:0in 0in .0001pt .5in;text-align:left;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">The forward-looking statements
and information contained in this material change report are made as of the
date hereof and Suncor undertakes no obligation to update publicly or revise
any forward-looking statements or information, whether as a result of new
information, future events or otherwise, unless so required by applicable
securities laws.</font></i></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">13</font></p>

<div align="left" style="margin:0in 0in .0001pt;text-align:left;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>

</div>
<!-- SEQ.=1,FOLIO='13',FILE='C:\JMS\105541\09-8410-3\task3462154\8410-3-mm-03.htm',USER='105541',CD='Apr  1 04:25 2009' -->


</body>

</html>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
