On January 30, 2013, BOK Financial Corporation ("BOK Financial") issued a press release announcing its financial results for the three months and year ended December 31, 2012 ("Press Release"). The full text of the Press Release is attached as Exhibit 99(a) to this report and is incorporated herein by reference. On January 30, 2013, in connection with issuance of the Press Release, BOK Financial released financial information related to the three months and year ended December 31, 2012 ("Financial Information"), which includes certain historical financial information relating to BOK Financial. The Financial Information is attached as Exhibit 99(b) to this report and is incorporated herein by reference.

(a) Exhibits

99                 Text of Press Release, dated January 30, 2013 titled "BOK
                   Financial Reports Record Earnings of $351 Million for 2012 --
                   Fourth Quarter Earnings Total $83 Million" and Financial
                   Information for the Three Months and Year Ended December 31,
                   2012