ARTHUR ANDERSEN




CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the incorporation of our
reports  in this Form  10-K, into the Company's  previously  filed  Registration
Statement File No.  33-65418,  Registration  Statement  333-03289,  Registration
Statement File No. 333-03303,  Registration  Statement File No.  333-32170,  and
Registration Statement File No. 333-53367.



/s/ Arthur Andersen LLP
--------------------------
Arthur Andersen LLP



Albuquerque, New Mexico
February 20, 2001