EX-16 3 dex16.txt ARTHUR ANDERSEN LETTER TO SEC Exhibit 16 June 19, 2002 Office of the Chief Accountant Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Dear Sir/Madam: The representations made in this letter are based solely on discussions with and representations from the engagement partner and manager on the audits of the financial statements of this registrant for the two most recent fiscal years. Those individuals are no longer with Arthur Andersen LLP. We have read the first, second, third and fourth paragraphs of Item 4 included in the Form 8-K dated June 14, 2002 of BancFirst Corporation to be filed with the Securities and Exchange Commission and have found no basis for disagreement with the statements contained therein. Very truly yours, /s/Arthur Andersen LLP cc: Mr. Joe T. Shockley, Exec. VP & CFO, BancFirst Corporation 5