BOK FINANCIAL CORP — Director's Dealing 2017

May 11, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: BOK FINANCIAL CORP ET AL (BOKF)
CIK: 0000875357
Period of Report: 2017-05-10

Reporting Person: Parker Donald T (EVP, Chief Information Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-10	Common Stock	J	1046.0127	$83.9491	Disposed	0	Indirect
2017-05-10	Common Stock	S	1315	$82.82	Disposed	0	Indirect
2017-05-10	Common Stock	S	2635	$82.9592	Disposed	0	Indirect
2017-05-11	Common Stock	S	3700	$82.5802	Disposed	43610	Direct

Footnotes

F1: These shares are related to the BOK Thrift Plan for which employees own investment units which hold BOKF common stock.

F2: The reporting person undertakes to provide to BOK Financial Corporation, any security holder of BOK Financial Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) to this Form 4.

F3: The price reported in Column 4 is a weighted price. The shares were sold in multiple transactions at prices ranging from $82.80 to 83.10, inclusive.

F4: The reporting person undertakes to provide to BOK Financial Corporation, any security holder of BOK Financial Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (5) to this Form 4.

F5: The price reported in Column 4 is a weighted price. The shares were sold in multiple transactions at prices ranging from $82.37 to 82.77, inclusive.