EXHIBIT 23 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation of our report dated May 21, 1998 included in this Form 10-K, into the Company's previously filed Registration Statement File Nos. 33-87450, 33-50946, 33-14800, 333-23355 and 33-50948. ARTHUR ANDERSEN LLP New Orleans, Louisiana June 26,1998