EXHIBIT 32.2

            CHIEF FINANCIAL OFFICER'S SECTION 1350 CERTIFICATION


I, Mark B. Cox, Chief Financial Officer of Giant Industries, Inc. ("Giant"),
do hereby certify that: (a) the Quarterly Report on Form 10-Q of Giant for the
quarterly period ended September 30, 2003 (the "Form 10-Q") to which this
certification is being furnished as an exhibit fully complies with the
requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934,
and (b) the information contained in the Form 10-Q fairly presents, in all
material respects, the financial condition and results of operations of Giant.

Giant Industries, Inc.


By:  /s/ MARK B. COX
-----------------------------
Name:   Mark B. Cox
Title:  Chief Financial Officer

Date:   November 12, 2003.