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                                                                    EXHIBIT 99.1
 
                                  May 4, 1998
 
Giant Industries, Inc.
23733 North Scottsdale Road
Scottsdale, Arizona 85255
 
     Re: Form S-4 Registration Statement of Giant Industries, Inc.
 
Ladies and Gentlemen:
 
     Each of the undersigned hereby consents to the use in the Form S-4
Registration Statement (the "Registration Statement") of Giant Industries, Inc.
of his name as a director of the Combined Company following the Merger (each as
defined in the Registration Statement).
 
                                          Very truly yours,
 
                                          /s/ LAMAR NORSWORTHY
 
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                                          Lamar Norsworthy
 
                                          /s/ ROBERT G. MCKENZIE
 
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                                          Robert G. McKenzie
 
                                          /s/ JACK P. REID
 
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                                          Jack P. Reid
 
                                          /s/ A. J. LOSEE
 
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                                          A. J. Losee
 
                                          /s/ W. JOHN GLANCY
 
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                                          W. John Glancy