EXHIBIT 7
                                                                      ---------


          CERTIFICATION REQUIRED BY RULE 13a-14(b) AND SECTION 1350 OF
                CHAPTER 63 OF TITLE 18 OF THE UNITED STATES CODE


         In connection  with Amendment No. 1 to the report of Western Oil Sands
Inc. (the  "Company") on the Form 40-F for the fiscal year ending  December 31,
2006 as filed with the  Securities  and Exchange  Commission on the date hereof
(the "Report"), the undersigned certifies,  pursuant to 18 U.S.C. Section 1350,
as adopted pursuant to Section 906 of the  Sarbanes-Oxley  Act of 2002, that to
the best of my knowledge:

1.   The Report fully complies with the  requirements of section 13(a) or 15(d)
     of the Securities Exchange Act of 1934; and

2.   The information  contained in the Report fairly presents,  in all material
     respects,  the  financial  condition  and  results  of  operations  of the
     Company.



Dated this 22nd day of February, 2007



/s/ David A. Dyck
- ---------------------------------
David A. Dyck
Senior Vice President, Finance and Chief Financial Officer
(Principal Financial Officer),
Western Oil Sands Inc.