EXHIBIT 7
                                                                      ---------

                                  CERTIFICATION

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

In connection  with the report of Western Oil Sands Inc. (the "Company") on the
Form 40-F for the  fiscal  year  ending  December  31,  2005 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.