Exhibit 32
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the Quarterly Report of BOK Financial Corporation (“BOK Financial”) on Form 10-Q for the fiscal period ending June 30, 2017 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), we, Steven G. Bradshaw and Steven E. Nell, Chief Executive Officer and Chief Financial Officer, respectively, of BOK Financial, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to our knowledge:
| 1. | The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and |
| 2. | The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of BOK Financial as of, and for, the periods presented. |
July 28, 2017
| /s/ Steven G. Bradshaw |
| Steven G. Bradshaw |
| President |
| Chief Executive Officer |
| BOK Financial Corporation |
| /s/ Steven E. Nell |
| Steven E. Nell |
| Executive Vice President |
| Chief Financial Officer |
| BOK Financial Corporation |