ARTHUR ANDERSEN




CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent  public  accountants,  we hereby consent to the  incorporation by
reference in this Form 10-K of our report dated  January 26, 2000  included
in Registration  Statement File No. 33-65418,  Registration Statement 333-03289,
Registration  Statement File No. 333-03303 and  Registration  Statement File No.
333-53367.  It should be noted that we have not audited any financial statements
of the Company subsequent to December 31, 1999 or performed any audit procedures
subsequent to the date of our report.


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



Albuquerque, New Mexico
March 8, 2000