EX-1 3 aaexha.txt EXHIBIT A April 1, 2002 Securities and Exchange Commission 450 Fifth Street, NW Washington, DC 20549 Re: Mallon Resources Corporation Form 12b-25 - Notification of Late Filing of 2001 Form 10-K Dear Ladies and Gentlemen: This letter will serve to confirm that we, as the independent public accountants of Mallon Resources Corporation, have read the applicable sections of the Form 12b-25 referenced above and are in agreement with the statements made therein. Arthur Andersen LLP EXHIBIT A