EX-23.1 4 dex231.txt CONSENT EXHIBIT 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS ----------------------------------------- As independent public accountants, we hereby consent to the incorporation by reference in this registration statement of our reports dated January 19, 2001 included in Syntroleum Corporation's Form 10-K for the year ended December 31, 2000 and to all references to our Firm included in this registration statement. /s/ ARTHUR ANDERSEN LLP Tulsa, Oklahoma June 12, 2001