EXHIBIT 23
 
                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
  As independent public accountants, we hereby consent to the incorporation of
our report included in this Form 10-K into the Company's previously filed Form
S-8 Registration Statement File Nos. 333-2862 and 333-2854.
 
ARTHUR ANDERSEN LLP
 
March 29, 1999
Houston, Texas