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BOK Financial

bokf · NASDAQ Financial Services
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Ticker bokf
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Industry Banks - Regional
Employees 1001-5000
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FY2016 Annual Report · BOK Financial
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ANNUAL REPORT
ANNUAL REPORT
20162016

A Diversified Regional Bank

KEY STATISTICS:

Assets

Loans

Deposits

Fiduciary Assets 

Assets Under Management 
& Custody

December 31, 2016

$33 billion

$17 billion

$23 billion

$42 billion

$75 billion

Full-Service Banking Markets

Additional Mortgage Banking Markets 

Additional Wealth Management Markets

DIVERSE REVENUE SOURCES:
Percent of total revenue 12 Months Ended 12/31/16

DEPOSITS BY PRINCIPAL MARKET:
At 12/31/16

50%  Net Interest

10% Brokerage & Trading

10% Transaction Card  

10% Trust Fees  

7 % Service Charges  

9% Mortgage

4% Other

51%  Oklahoma

27% Texas

7% New Mexico

6% Colorado

5% Kansas City

3% Arizona

1% Arkansas

LOAN PORTFOLIO SEGMENTATION:
At 12/31/16

LOANS BY COLLATERAL LOCATION:
At 12/31/16

18%  Services

22% CRE

12%  Residential Mortgage

15% Energy

13%  Healthcare

9%  Wholesale/Retail
5%  Personal

3%  Other
3%  Manufacturing

19% Other

21% Oklahoma

9% Kansas/Missouri

32% Texas 

7% Colorado

5% Arizona

5% New Mexico

2% Arkansas

Dear Shareholders,

2016 was a dramatic and volatile year. The oil and gas downturn that began in 
mid-2014 continued, with commodity prices fluctuating erratically throughout the 
year  before  stabilizing  in  the  third  and  fourth  quarter.  A  contentious  national 
election  culminated  in  what  will  seemingly  be  a  major  change  of  direction  in 
Washington, D.C. as well as state capitals across the country. And a persistent 
low interest rate environment continued for yet another year, with long-term rates 
dipping to a new multi-year low during the first quarter, only to rebound sharply 
once the election results rolled in during November. Most of our core businesses 
were impacted in some way by the market uncertainty.

Despite  these  challenges,  we  earned  $233  million  for  the 
full  year,  or  $3.53  per  diluted  share.  I  believe  this  was  an 
excellent performance from our employees in what was a 
trying year. We grew our loan portfolio, our fee-generating 
businesses delivered record revenue, and our results were 
consistently and solidly profitable.

BOK Financial is built to deliver strong performance regardless of the economic 
backdrop. I believe we will look back on 2016 as a valid and relevant example of 
the benefits of our business model, and that we are positioned to grow profitability 
and increase our competitive capabilities in 2017.

Steven G. Bradshaw
President and Chief Executive Officer

LOAN GROWTH

Loan  balances  were  up  seven  percent  in  2016  despite 
a  significant  decrease  in  our  energy  portfolio,  where  we 
saw  borrowers  pay  down  debt  to  shore  up  their  balance 
sheets  and  manage  through  the  extended  downturn. 
But  our  commercial  real  estate,  healthcare,  regional,  and 
private  banking  businesses  generated  strong  growth  and 
offset this decrease. 

exit  the  correspondent  mortgage  business  where  intense 
competition  had  significantly  reduced  profitability.  Looking 
forward into 2017, we expect lower refinancing volume as 
interest rates increased considerably after the election, and 
of  course  the  correspondent  revenue  from  2016  will  not 
recur; however, we will continue to grow our Home Direct 
Mortgage channel, which now represents 25 percent of our 
mortgage processing volume and continues to expand its 
footprint nationally. 

We expect continued mid-single-digit loan growth in 2017. 
Our healthcare business continues to expand geographically, 
and demographic trends indicate this business has plenty of 
potential for strong ongoing growth. In regional banking and 
private  banking,  we  continue  to  take  share  from  large 
national  banks  by  competing  with  our  local  presence  and 
stability along with our broad product offerings. Additionally, 
we expect growth to resume in the energy portfolio in the 
second half of the year. These favorable trends are expected 
to be offset in part by a reduction in commercial real estate 
growth, as we are approaching internal concentration limits 
and will manage further growth in this business by focusing 
on developers that have a strong track record with us over 
multiple cycles.

FEE INCOME GROWTH
Our  revenue  diversity  remains  a  critical  component  of  our 
business strategy.  We use this diversity to serve the broader 
needs of our consumer and commercial clients, and it helps 
to  mitigate  fluctuations  in  credit  costs  and  other  business 
slowdowns in our traditional banking activities.  

We delivered record fee income growth in 2016, with three 
of  our  five  main  fee  income  businesses  delivering  record 
results  for  the  year.  In  brokerage  and  trading,  the  volatile 
interest  rate  environment  during  the  year  drove  increased 
revenue  for  our  institutional  brokerage  team.  Wealth 
management  continued  to  be  a  strong  component  of 
our  growth,  posting  an  impressive  six  percent  increase  in 
assets under management while posting 26 percent growth 
in  net  interest  revenue  and  six  percent  growth  in  other 
operating  revenue.  Transaction  processing  continued  its 
track record of steady growth with revenues up 5.5 percent 
during the year.

Our mortgage business had a solid 2016 based on the very 
active refinancing market when rates were at historic lows in 
the early part of the year. Mid-year we made the decision to 

ENERGY

The  energy  industry  is  important  to  our  company,  both  in 
terms of direct credit exposure as well as the impact it has 
on  our  footprint.    We  take  a  long  view  of  energy  lending, 
informed  by  a  management  team  and  board  of  directors 
who  have  experienced  many  downturns.  Because  of  this, 
our  performance  in  energy  lending  has  been  remarkable: 
We  incurred  minimal  losses  considering  the  size  of  our 
portfolio, because we were as disciplined in the heady days 
when  oil  prices  were  in  the  triple  digits  as  we  are  today. 
Our investment in an in-house petroleum engineering team 
enabled  us  to  have  an  early  view  of  changes  in  collateral 
value and protect against losses.

Not  only  is  our  energy  portfolio  in  great  shape  as  we  exit 
the  downturn,  but  our  lending  team  is  also  better  for  it. 
Although  we  have  a  number  of  key  executives  who  were 
with the bank and experienced the downturn of the 1980s 
(our  chairman  and  our  chief  credit  officer  are  relevant 
examples), few of our energy bankers had been through an 
extended commodities downturn. Now, every single one of 
them  has  experienced  the  extreme  downturn  of  2014–
2016 and learned firsthand how our disciplined approach to 
this specialty lending business serves us well in good times 
and bad.

Also  because  of  this  discipline,  we  never  left  the  industry. 
While many peer banks either stopped lending to oil and gas 
companies,  we  never  lost  our  resolve  or  our  belief  that 
energy lending is a great business. All through the downturn, 
we continued to support customers, make new loans, build 
our  portfolio  and  build  relationships.  We  even  invested 
further  in  the  business  with  our  2016  acquisition  of 
E-Spectrum Advisors, an energy acquisition and divestiture 
advisory firm that is poised to drive significant new revenue 
streams as properties begin to change hands again. We are 
in the energy banking business to stay and look forward to 
building this business even further in the coming years.

RISK MANAGEMENT, 
COMPLIANCE AND 
TECHNOLOGY

Our three-year focus on building an effective and centralized 
compliance unit with a stronger third line of defense within 
our internal audit group is complete.  We continue to seek 
efficiencies  and  will  work  to  scale  these  resources  as 
workload  expands  with  overall  growth,  but  at  a  pace  that 
does not adversely impede earnings growth.

servicing  rights  and  accrue  for  costs  associated  with 
foreclosure  and  loss  mitigation.  We  believe  we  now  have 
those  items  at  a  stable  run  rate,  and  we  also  believe  that 
those  changes  will  increase  the  effectiveness  of  our  MSR 
hedging efforts in 2017. 

Additionally, we settled two litigation issues, one in wealth 
management  and  one  in  consumer  banking.    Although 
litigation is an ongoing risk for financial institutions, we do 
not expect these expenses to repeat in 2017.

We also substantially upgraded our technology infrastructure 
platform,  including  additional  investment  in  cyber  security 
resources and capabilities, and will now focus more heavily 
on competitive product and service capabilities, in particular 
within web and mobile delivery platforms.  

During  2016,  we  achieved  equilibrium  on  balance  sheet 
interest rate risk. We have done this in a slow and intentional 
manner the past three years to effectively balance current 
income and long-term return for shareholders.  

EXPENSES
We  did  see  elevated  expenses  in  2016  from  a  variety  of 
sources.  Some have been the result of a very deep dive in 
our mortgage business profitability and outlook, especially in 
the  context  of  higher  capital  requirements  related  to  that 
business. This led us to change how we hedge our mortgage 

Finally, as would be expected, we saw elevated - although 
manageable  -  credit  costs  associated  with  our  energy 
portfolio. This is expected to moderate materially in 2017 as 
the energy industry continues to emerge from the two-year 
commodities cycle. A related expense has been increased 
FDIC  insurance  costs  which  is  driven  by  higher  non-
performing energy loans. We likewise expect this to begin to 
decrease in the latter part of 2017.

We  have  tactically  reduced  expense  and  headcount  the 
past few years by materially reducing our in-store banking 
channel,  closing  certain  traditional  branches,  rationalizing 
our broker-dealer trading staff and the aforementioned exit 
from  correspondent  mortgage.  Additionally,  in  October 
2016 we announced that we would reduce contract labor, 
not  backfill  open  positions  and  reduce  our  workforce 
for total annual savings in excess of $20 million beginning 
in 2017.  

mobank

In the fourth quarter, we completed our first whole-bank acquisition since 2007 with the acquisition of MBT Bancshares, or 
Mobank, in Kansas City. Mobank operates four banking centers in the Kansas City area and is regularly named one of the 
strongest midsized banks in Kansas City. 

Mobank  is  a  great  fit  for  us  and  significantly  strengthens  our  market  presence  in  Kansas  City.  We  will  now  have  six 
banking  centers  in  the  market,  more  than  $1.6  billion  in  assets  and  will  vault  into  the  top  10  in  terms  of  market  share. 
This is not a typical “big bank acquires small bank” scenario. We have adopted the Mobank brand and will tap into the 
best of both banks to build BOK Financial’s combined operations in the Kansas City market. Mobank also has deep roots in 
the Kansas City market and brings extensive relationships with customers, prospects and business partners that we believe 
will  accelerate  our  growth.  Mobank  and  its  clients  will  likewise  benefit  from  our  expertise  in  commercial  banking  and 
private banking as well as fee-generating businesses, such as mortgage and wealth management.

The  transaction  is  expected  to  contribute  four  to  six  cents  to  BOK  Financial’s  2017  earnings  per  share  after  integration 
costs — a considerable increase from the three cents per share we forecasted when we announced the acquisition in late 
2015 as Mobank is already well ahead of its plan for the year.

2017 PLAN AND ONGOING 
STRATEGY

Our  plan  for  2017  is  built  to  achieve  a  2:1  ratio  of  revenue 
growth to expense growth, which should result in materially 
improved EPS growth over the coming years. This will create 
operating  leverage  in  today’s  environment,  without  reliance 
on rate increases or a reduction in regulatory costs.

It is our intention to continue to focus on competing effectively 
for  new  business  with  large  national  banks  and  investment 
firms.  We  do  this  via  a  mix  of  competitive  products, 
technologies and services delivered by a workforce that has 
been trained and developed for many years to work extremely 
collaboratively  on  behalf  of  customers—delivering  an 
experience  that  cannot  be  easily  duplicated  by  larger 
competitors.

At BOK Financial, we believe how you achieve results is as 
important  as  the  results  you  achieve.  Accordingly,  we  have 
added  expectations  on  the 
integrity  of  our  business 
relationships with customers and how we conduct business 
within the company, as well as updated and strengthened our 
core values as a company. These values are fully integrated 
with our strategic plan and the core competencies we expect 
from every one of our employees.  

In 2016, we launched a company-wide purpose statement: 
achieving  more  together.  This  is  our  overarching  business 
model.  Our  fee-generating  businesses  work  hand  in  hand 
with  our  lending  and  deposit-taking  businesses  to  provide 
more benefit for customers and to improve financial returns 
for the company across the economic cycle. Our differentiated 
energy,  healthcare  and  commercial  real  estate  specialty 
lending businesses work together with our business banking, 
middle  market  and  private  banking  businesses  to  serve  a 
wide range of customers.  And we are a diverse collection of 
people  with  unique  skills,  talents  and  areas  of  expertise. 
When  we  work 
lines  of  business, 
together,  across 
geographies  and  areas  of  responsibility,  we  achieve  more 
and  fully  realize  our  potential.  It’s  what  makes  us  great. 
And  it  creates  and  sustains  a  culture  that  is  inherently 
difficult for our competitors to match.

We work together to achieve more for shareholders. Although 
we have faced some challenges, I want to assure you that we 
are  well  positioned  heading  into  2017.  Credit  costs  are 
expected to moderate meaningfully and expense reductions 
taken in 2016 should enable us to grow revenue faster than 
expenses.  Other  unique  2016  expense  items,  such  as 
litigation settlement expenses, are not expected to reoccur. 

Despite the ups and downs of 2016, our loyal shareholders 
were rewarded handsomely, and as of this writing our stock 
is  trading  near  its  all-time  high.  During  the  year  we  also 
returned  over  $181  million  of  capital  to  shareholders: 
We  increased  our  dividend  for  the  11th  consecutive  year 
in  November,  with  total  dividends  paid  of  $114  million  in 
the year, and we repurchased over $67 million of our common 
stock.

Market sentiment changed for the better in the fourth quarter 
with  expectations  for  a  change  in  tone  toward  the  financial 
services  industry  in  Washington,  D.C.;  a  more  favorable 
interest rate environment; and stronger economic growth in 
the United States. BOK Financial is poised to benefit as we 
believe  we  occupy  the  sweet  spot  in  the  financial  services 
industry, with the breadth of services to compete effectively 
with large national banks and the local presence and personal 
touch  that  customers  demand.  Our  investment  in  risk, 
compliance  and  technology  platforms  is  largely  behind  us; 
we’ve taken decisive action to right-size our expense base; 
and the credit environment is largely benign as we enter 2017. 
All of that supports my belief that we are well-positioned for 
strong earnings growth in the coming years.

I look forward to keeping you apprised of our progress.

Best regards,

Steven G. Bradshaw

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

(Mark One) 

FORM 10-K

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended December 31, 2016 

OR

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _____________ to ______________                 

Commission File No. 0-19341

BOK FINANCIAL CORPORATION
(Exact name of registrant as specified in its charter)

Oklahoma
(State or other jurisdiction
of Incorporation or Organization)

Bank of Oklahoma Tower
Boston Avenue at Second Street
Tulsa, Oklahoma
(Address of Principal Executive Offices)

73-1373454
(IRS Employer
Identification No.)

74172
(Zip Code)

 (918) 588-6000
(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12 (b) of the Act:  None

Securities registered pursuant to Section 12 (g) of the Act:
Common stock, $0.00006 par value

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  Yes  

  No  

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 (d) of the Act.  Yes  

  No  

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange 
Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been 
  No  
subject to such filing requirements for the past 90 days.       Yes  

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data 
File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter)during the preceding 12 months 
(or for such shorter period that the registrant was required to submit and post such files)Yes  

  No  

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be 
contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this 
Form 10-K or any amendment to this Form 10-K.   

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting 
company.  See definitions of “larger accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange 
Act.  (Check one):
Large accelerated filer  

Smaller reporting company  

Non-accelerated filer  

Accelerated filer  

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    Yes  

  No  

The aggregate market value of the registrant's common stock ("Common Stock") held by non-affiliates is approximately $1.6 billion (based 
on the June 30, 2016 closing price of Common Stock of $62.70 per share). As of January 31, 2017, there were 65,489,810 shares of Common 
Stock outstanding.

Part III incorporates certain information by reference from the Registrant’s Proxy Statement for the 2017 Annual Meeting of Shareholders.

DOCUMENTS INCORPORATED BY REFERENCE

 
              
BOK Financial Corporation
Form 10-K
Year Ended December 31, 2016 

Index

Part I
Business
Risk Factors
Unresolved Staff Comments
Properties
Legal Proceedings
Mine Safety Disclosures

Part II
Market for Registrant's Common Equity, Related Stockholder Matters and Issuer 
Purchases of Equity Securities
Selected Financial Data
Management's Discussion and Analysis of Financial Condition and Results of Operations
Quantitative and Qualitative Disclosures about Market Risk
Financial Statements and Supplementary Data
Changes In and Disagreements with Accountants on Accounting and Financial Disclosure
Controls and Procedures
Other Information

Part III
Directors, Executive Officers and Corporate Governance
Executive Compensation
Security Ownership of Certain Beneficial Owners and Management and Related 
Stockholder Matters
Certain Relationships and Related Transactions, and Director Independence
Principal Accounting Fees and Services

Part IV
Exhibits, Financial Statement Schedules

Signatures

1
9
14
14
14
14

15

18

18

76

79

178

178

178

178

178

179

179

179

179

183

Item 1
Item 1A
Item 1B
Item 2
Item 3
Item 4

Item 5

Item 6

Item 7

Item 7A

Item 8

Item 9

Item 9A

Item 9B

Item 10

Item 11

Item 12

Item 13

Item 14

Item 15

Exhibit 21
Exhibit 23

Exhibit 31.1
Exhibit 31.2
Exhibit 32

Subsidiaries of the Registrant
Consent of Independent Registered Public Accounting Firm

Chief Executive Officer Section 302 Certification
Chief Financial Officer Section 302 Certification
Section 906 Certifications

ITEM 1.   BUSINESS

PART I

General

Developments relating to individual aspects of the business of BOK Financial Corporation (“BOK Financial” or “the 
Company”) are described below. Additional discussion of the Company’s activities during the current year appears within Item 
7 “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

Description of Business

BOK Financial is a financial holding company incorporated in the state of Oklahoma in 1990 whose activities are governed by 
the Bank Holding Company Act of 1956 (“BHCA”), as amended by the Financial Services Modernization Act or Gramm-
Leach-Bliley Act and the Dodd-Frank Wall Street Reform and Consumer Protection Act (the "Dodd-Frank Act"). BOK 
Financial offers full service banking in Oklahoma, Texas, New Mexico, Northwest Arkansas, Colorado, Arizona, and Kansas/
Missouri. At December 31, 2016, the Company reported total consolidated assets of $33 billion and ranked as the 55th largest 
bank holding company based on asset size. 

BOKF, NA is a wholly owned subsidiary bank of BOK Financial. BOKF, NA operates TransFund, Cavanal Hill Investment 
Management, BOK Financial Asset Management, Inc. and seven banking divisions: Bank of Albuquerque, Bank of Arizona, 
Bank of Arkansas, Bank of Kansas City, Bank of Oklahoma, Bank of Texas and Colorado State Bank and Trust. On December 
1, 2016, BOK Financial acquired Missouri Bank and Trust Company Kansas City dba Mobank as a wholly owned subsidiary 
bank of BOK Financial, more than doubling our market share in the Kansas City area. Mobank was merged into BOKF, NA on 
February 17, 2017. The Bank of Kansas City banking centers were converted to the Mobank brand. BOKF, NA and Mobank 
are collectively referred to as ("the subsidiary banks") in the discussion following. Other wholly owned subsidiaries of BOK 
Financial include BOK Financial Securities, Inc., a broker/dealer that primarily engages in retail and institutional securities 
sales and municipal bond underwriting and The Milestone Group, Inc., an investment adviser to high net worth clients. Other 
non-bank subsidiary operations do not have a significant effect on the Company’s financial statements. 

Our overall strategic objective is to emphasize growth in long-term value by building on our leadership position in Oklahoma 
through expansion into other high-growth markets in contiguous states. We operate primarily in the metropolitan areas of Tulsa 
and Oklahoma City, Oklahoma; Dallas, Fort Worth and Houston, Texas; Albuquerque, New Mexico; Denver, Colorado; 
Phoenix, Arizona, and Kansas City, Kansas/Missouri. Our acquisition strategy targets fairly priced quality organizations with 
demonstrated solid growth that would supplement our principal lines of business. We provide additional growth opportunities 
by hiring talent to enhance competitiveness, adding locations and broadening product offerings. Our operating philosophy 
embraces local decision-making in each of our geographic markets while adhering to common Company standards.

Our primary focus is to provide a comprehensive range of nationally competitive financial products and services in a 
personalized and responsive manner. Products and services include loans and deposits, cash management services, fiduciary 
services, mortgage banking and brokerage and trading services to middle-market businesses, financial institutions and 
consumers. Commercial banking represents a significant part of our business. Our credit culture emphasizes building 
relationships by making high quality loans and providing a full range of financial products and services to our customers. Our 
energy financing expertise enables us to offer commodity derivatives for customers to use in their risk management. We also 
offer derivative products for customers to use in managing their interest rate and foreign exchange risk. Our diversified base of 
revenue sources is designed to generate returns in a range of economic situations. Historically, fees and commissions provide 
43% to 49% of our total revenue. Approximately 48% of our revenue came from fees and commissions in 2016.

BOK Financial’s corporate headquarters is located at Bank of Oklahoma Tower, Boston Avenue at Second Street, Tulsa, 
Oklahoma 74172.

The Company’s Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and 
amendments to those reports are available on the Company’s website at www.bokf.com as soon as reasonably practicable after 
the Company electronically files such material with or furnishes it to the Securities and Exchange Commission.

1

Operating Segments

BOK Financial operates three principal lines of business: Commercial Banking, Consumer Banking and Wealth 
Management. Commercial Banking includes lending, treasury and cash management services and customer risk management 
products for small businesses, middle market and larger commercial customers. Commercial Banking also includes the 
TransFund electronic funds network. Consumer Banking includes retail lending and deposit services, lending and deposit 
services to small business customers served through the retail branch network and all mortgage banking activities. Wealth 
Management provides fiduciary services, private bank services and investment advisory services in all markets. Wealth 
Management also underwrites state and municipal securities and engages in brokerage and trading activities. Discussion of 
these principal lines of business appears within the Lines of Business section of “Management's Discussion and Analysis of 
Financial Condition and Results of Operations”. 

Competition

BOK Financial and its operating segments face competition from other banks, thrifts, credit unions and other non-bank 
financial institutions, such as investment banking firms, investment advisory firms, brokerage firms, investment companies, 
government agencies, mortgage brokers and insurance companies. The Company competes largely on the basis of customer 
services, interest rates on loans and deposits, lending limits and customer convenience. Some operating segments face 
competition from institutions that are not as closely regulated as banks, and therefore are not limited by the same capital 
requirements and other restrictions. All market share information presented below is based upon share of deposits in specified 
areas according to SNL DataSource as of June 30, 2016.

We are the largest financial institution in the state of Oklahoma with 14% of the state’s total deposits. Bank of Oklahoma has 
30% and 12% of the market share in the Tulsa and Oklahoma City areas, respectively. We compete with two banks that have 
operations nationwide and have greater access to funds at lower costs, higher lending limits, and greater access to technology 
resources. We also compete with regional and locally-owned banks in both the Tulsa and Oklahoma City areas, as well as in 
every other community in which we do business throughout the state.

Bank of Texas competes against numerous financial institutions, including some of the largest in the United States, and has a 
market share of approximately 2% in the Dallas, Fort Worth area and less than 1% in the Houston area. Bank of Albuquerque 
has a 9% market share in the Albuquerque area and competes with four large national banks, some regional banks and several 
locally-owned smaller community banks. Colorado State Bank and Trust has a market share of approximately 2% in the Denver 
area. Bank of Arkansas serves Benton and Washington counties in Arkansas with a market share of approximately 3%. Bank of 
Arizona operates as a community bank with locations in Phoenix, Mesa and Scottsdale with less than 1% market share. Bank of 
Kansas City and Mobank collectively have a 1% market share in the Kansas City, Kansas/Missouri market. The Company’s 
ability to expand into additional states remains subject to various federal and state laws.

Employees

As of December 31, 2016, BOK Financial and its subsidiaries employed 4,884 full-time equivalent employees. None of the 
Company’s employees are represented by collective bargaining agreements. Management considers its employee relations to be 
good.

Supervision and Regulation

BOK Financial and its subsidiaries are subject to extensive regulations under federal and state laws. These regulations are 
designed to promote safety and soundness, protect consumers and ensure the stability of the banking system as a whole. The 
purpose of these regulations is not necessarily to protect shareholders and creditors. As detailed below, these regulations require 
the Company and its subsidiaries to maintain certain capital balances and require the Company to provide financial support to 
its subsidiaries. These regulations may restrict the Company’s ability to diversify, to acquire other institutions and to pay 
dividends on its capital stock. These regulations also include requirements on certain programs and services offered to our 
customers, including restrictions on fees charged for certain services. 

The following information summarizes certain existing laws and regulations that affect the Company’s operations. It does not 
summarize all provisions of these laws and regulations and does not include all laws and regulations that affect the Company 
presently or in the future.

2

General

As a financial holding company, BOK Financial is regulated under the BHCA and is subject to regular inspection, examination 
and supervision by the Board of Governors of the Federal Reserve System (the “Federal Reserve Board”). Under the BHCA, 
BOK Financial files quarterly reports and other information with the Federal Reserve Board.

BOKF, NA is organized as a national banking association under the National Banking Act, and is subject to regulation, 
supervision and examination by the Office of the Comptroller of the Currency (the “OCC”), the Federal Deposit Insurance 
Corporation (the “FDIC”), the Federal Reserve Board, the Consumer Financial Protection Bureau and other federal and state 
regulatory agencies. The OCC has primary supervisory responsibility for national banks and must approve certain corporate or 
structural changes, including changes in capitalization, payment of dividends, change of place of business, and establishment of 
a branch or operating subsidiary. The OCC performs examinations concerning safety and soundness, the quality of management 
and directors, information technology and compliance with applicable regulations. The National Banking Act authorizes the 
OCC to examine every national bank as often as necessary.

A financial holding company, and the companies under its control, are permitted to engage in activities considered “financial in 
nature” as defined by the BHCA, Gramm-Leach-Bliley Act and Federal Reserve Board interpretations. Activities that are 
“financial in nature” include securities underwriting and dealing, insurance underwriting, merchant banking, operating a 
mortgage company, performing certain data processing operations, servicing loans and other extensions of credit, providing 
investment and financial advice, owning and operating savings and loan associations, and leasing personal property on a full 
pay-out, non-operating basis. A financial holding company is required to notify the Federal Reserve Board within thirty days of 
engaging in new activities determined to be “financial in nature.” BOK Financial is engaged in some of these activities and has 
notified the Federal Reserve Board.

In order for a financial holding company to commence any new activity permitted by the BHCA, each insured depository 
institution subsidiary of the financial holding company must be "well capitalized" and "well managed" and have received a 
rating of at least "satisfactory" in its most recent examination under the Community Reinvestment Act. A financial holding 
company and its depository institution subsidiaries are considered to be "well capitalized" if they meet the requirements 
discussed in the section captioned "Capital Adequacy and Prompt Corrective Action" which follows. A financial holding 
company and its depository institution subsidiaries are considered to be "well managed" if they receive a composite rating and 
management rating of at least "satisfactory" in their most recent examinations. If a financial holding company fails to meet 
these requirements, the Federal Reserve Board may impose limitations or conditions on the conduct of its activities and the 
company may not commence any new financial activities without prior approval.   

The BHCA requires the Federal Reserve Board’s prior approval for the direct or indirect acquisition of more than five percent 
of any class of voting stock of any non-affiliated bank. Under the Federal Bank Merger Act, the prior approval of the OCC is 
required for a national bank to merge with another bank or purchase the assets or assume the deposits of another bank. In 
reviewing applications seeking approval of merger and acquisition transactions, the bank regulatory authorities consider, 
among other things, the competitive effect and public benefits of the transactions, the capital position of the combined 
organization, the applicant’s performance record under the Community Reinvestment Act and fair housing laws and the 
effectiveness of the subject organizations in combating money laundering activities.

A financial holding company and its subsidiaries are prohibited under the BHCA from engaging in certain tie-in arrangements 
in connection with the provision of any credit, property or services. Thus, a subsidiary of a financial holding company may not 
extend credit, lease or sell property, furnish any services or fix or vary the consideration for these activities on the condition 
that (1) the customer obtain or provide additional credit, property or services from or to the financial holding company or any 
subsidiary thereof, or (2) the customer may not obtain some other credit, property or services from a competitor, except to the 
extent reasonable conditions are imposed to insure the soundness of credit extended.

The subsidiary banks and other non-bank subsidiaries are also subject to other federal and state laws and regulations. For 
example, BOK Financial Securities, Inc. is regulated by the Securities and Exchange Commission (“SEC”), the Financial 
Industry Regulatory Authority (“FINRA”), the Federal Reserve Board, and state securities regulators. Such regulations 
generally include licensing of certain personnel, customer interactions, and trading operations. 

3

Dodd-Frank Wall Street Reform and Consumer Protection Act

On July 21, 2010, the Dodd-Frank Act was signed into law, giving federal banking agencies authority to increase regulatory 
capital requirements, impose additional rules and regulations over consumer financial products and services and limit the 
amount of interchange fees that may be charged in an electronic debit transaction. In addition, the Dodd-Frank Act made 
permanent the $250,000 limit for federal deposit insurance. It also repealed prohibitions on payment of interest on demand 
deposits, which could impact how interest is paid on business transaction and other accounts. Further, the Dodd-Frank Act 
prohibits banking entities from engaging in proprietary trading and restricts banking entities' sponsorship of or investment in 
private equity funds and hedge funds. Final rules required to implement the Dodd-Frank Act have largely been issued. Many of 
these rules have extended phase-in periods and the full impact of this legislation on the banking industry, including the 
Company, has not been fully realized.

The Durbin Amendment to the Dodd-Frank Act required that interchange fees on electronic debit transactions paid by 
merchants must be “reasonable and proportional to the cost incurred by the issuer” and prohibited card network rules that have 
limited price competition among networks. Effective October 1, 2011, the Federal Reserve issued its final ruling to implement 
the Durbin Amendment. This ruling established a cap on interchange fees banks with more than $10 billion in total assets can 
charge merchants for certain debit card transactions. The Durbin Amendment also required all banks to comply with the 
prohibition on network exclusivity and routing requirements. Debit card issuers are required to make at least two unaffiliated 
networks available to merchants. 

The Dodd-Frank Act established the Consumer Financial Protection Bureau ("CFPB") with powers to supervise and enforce 
consumer protection laws. The CFPB has broad rule-making authority for a wide range of consumer protection laws that apply 
to all banks and savings institutions, including the authority to prohibit "unfair, deceptive or abusive" acts and practices. 
Established July 21, 2011, the CFPB has examination and enforcement authority over all banks and savings institutions with 
more than $10 billion in assets for certain designated consumer laws and regulations. The CFPB issued mortgage servicing 
standards and mortgage lending rules, including “qualified mortgage” rules that are designed to protect consumers and ensure 
the reliability of mortgages. Mortgage lenders are required to make a reasonable and good faith determination based on verified 
and documented information that a consumer applying for a mortgage loan has a reasonable ability to repay the loan according 
to its terms. Qualified mortgages that meet this requirement and other specified criteria are given a safe harbor of compliance. 
Rules affecting mortgage lenders and servicers became effective on January 10, 2014. 

Title VI of the Dodd-Frank Act, commonly known as the Volcker Rule, prohibits banking entities from engaging in proprietary 
trading as defined by the Dodd-Frank Act and restricts sponsorship of, or investment in, private equity funds and hedge funds, 
subject to limited exceptions and exclusions. In December 2013, Federal banking agencies approved regulations that implement 
the Volcker Rule. In July 2016, the Federal Reserve extended the conformance period to July 2017 for key elements of the Rule 
relating to certain relationships and investments in legacy funds. On December 12, 2016, the Federal Reserve issued guidance 
regarding how banking entities may apply for an additional extension of up to five years from July 2017 to conform investment 
in "illiquid fund." The Company’s private equity investment activities may be curtailed. The Company’s trading activity 
remains largely unaffected, as most of our trading activity is exempted or excluded from the Volcker Rule trading prohibitions. 

Title VII of the Dodd-Frank Act subjects nearly all derivative transactions to the regulations of the Commodity Futures Trading 
Commission (“CFTC”) or SEC. This includes registration, recordkeeping, reporting, capital, margin and business conduct 
requirements on swap dealers and major swap participants. The CFTC and SEC both approved interim final rules on the 
definition "swap" and “swap dealer" which were effective October 2012. Under these rules, entities transacting in less than $8 
billion in notional value of swaps over any 12 month period during the phase-in period will be exempt from the definition of 
"swap dealer." The phase-in period is set to expire on December 31, 2017, after which the $8 billion threshold will be reduced 
to $3 billion unless the CFTC takes further action affecting the threshold. The Company currently estimates that the nature and 
volume of swap activity will not require it to register as a swap dealer any time prior to December 2018. Although the ultimate 
impact of Title VII remains uncertain, we currently believe its full implementation is not likely to impose significantly higher 
compliance costs on the Company.

4

Capital Adequacy and Prompt Corrective Action

The Federal Reserve Board, the OCC and the FDIC have issued substantially similar risk-based and leverage capital guidelines 
applicable to United States banking organizations to ensure capital adequacy based upon the risk levels of assets and off-
balance sheet financial instruments. In addition, these regulatory agencies may from time to time require that a banking 
organization maintain capital above the minimum levels, whether because of its financial condition or actual or anticipated 
growth. Capital adequacy guidelines and prompt corrective action regulations involve quantitative measures of assets, 
liabilities, and certain off-balance sheet items calculated under regulatory accounting practices. Capital amounts and 
classifications are also subject to qualitative judgments by regulators regarding components, risk weighting and other factors.  

Federal Reserve Board risk-based guidelines define a four-tier capital framework. Common equity Tier 1 capital (CET1) 
includes common shareholders' equity, less goodwill, most intangible assets and other adjustments. Tier 1 capital consists of 
CET1 capital plus certain additional capital instruments and related surplus. Supplementary capital (Tier 2) consists of 
preferred stock not qualifying as Tier 1 capital, qualifying mandatory convertible debt securities, limited amounts of 
subordinated debt, other qualifying term debt and allowances for credit losses, subject to limitations. Assets and off-balance 
sheet exposures are assigned to categories of risk-weights, based primarily upon relative credit risk. Risk-based capital ratios 
are calculated by dividing CET1, Tier 1 and total capital by risk-weighted assets. 

New capital rules were effective for banks and bank holding companies, including BOK Financial on January 1, 2015 as part of 
a package of regulatory reforms developed by the Basel Committee on Banking Supervision ("BCBS") to strengthen the 
regulation, supervision and risk management of the banking sector, commonly referred to as the Basel III framework. 
Components of these rules will phase in through January 1, 2019. The new capital rules established a 7% threshold for common 
equity Tier 1 ratio consisting of a minimum level plus a capital conservation buffer. The rules also changed both the Tier 1 risk 
based capital requirements and the total risk based requirements to a minimum of 6% and 8%, respectively, plus a capital 
conservation buffer of 2.5% totaling 8.5% and 10.5%, respectively. The Company elected to exclude unrealized gains and 
losses from available for sale securities from its calculation of Tier 1 capital, consistent with the treatment under previous 
capital rules.

As of December 31, 2016, BOK Financial's common equity Tier 1 ratio was 11.21%. BOK Financial's Tier 1 and total capital 
ratios were 11.21% and 12.81%, respectively.

The leverage ratio is determined by dividing Tier 1 capital by adjusted average total assets. Banking organizations are required 
to maintain a ratio of at least 4%. A bank which falls below these levels, including the capital conservation buffer, would be 
subject to regulatory restrictions on capital distributions (including but not limited to dividends and share repurchases) and 
executive bonus payments. BOK Financial's leverage ratio at December 31, 2016 was 8.72%.  

The Federal Deposit Insurance Corporation Improvement Act of 1991 (the “FDICIA”), among other things, identifies five 
capital categories for insured depository institutions from well capitalized to critically under-capitalized and requires the 
respective federal regulatory agencies to implement systems for prompt corrective action for institutions failing to meet 
minimum capital requirements within such categories. FDICIA imposes progressively more restrictive covenants on operations, 
management and capital distributions, depending upon the category in which an institution is classified. The various regulatory 
agencies have adopted substantially similar regulations that define the five capital categories identified by FDICIA, using the 
total risk-based capital, Tier 1 risk-based capital and leverage capital ratios as the relevant capital measures. Such regulations 
establish various degrees of corrective action to be taken when an institution is considered under-capitalized. Under these 
guidelines, the subsidiary banks were considered well capitalized as of December 31, 2016.  

Liquidity Requirements

The Basel III framework also requires bank holding companies and banks to measure their liquidity against specific liquidity 
tests. One test, referred to as the liquidity coverage ratio, is designed to ensure that the banking entity maintains a prescribed 
minimum level of unencumbered high-quality liquid assets equal to expected net cash outflows as defined. The other test, 
referred to as the net stable funding ratio, is designed to promote greater reliance on medium and long term funding sources.

5

On September 3, 2014, U.S. federal banking agencies published the final rule covering Liquidity Risk Management Standards 
that would standardize minimum liquidity requirements for internationally active banking organizations as defined (generally 
those with total consolidated assets in excess of $250 billion) as well as modified liquidity requirements for other banking 
organizations with total consolidated assets in excess of $50 billion that are not internationally active. Although the final rule 
does not apply to banking organizations with total assets less than $50 billion, including the Company, if growth in the balance 
sheet of the Company were to approach the $50 billion threshold, the costs of such liquidity regulations would begin to be 
realized. 

Stress Testing 

As required by the Dodd-Frank Act, the Federal Reserve published regulations that require bank holding companies with $10 
billion to $50 billion in assets to perform annual capital stress tests. The requirements for annual capital stress testing became 
effective for the Company in the fourth quarter of 2013. The Dodd-Frank Act Stress Test ("DFAST") is a forward-looking 
exercise under which the Company and its banking subsidiary estimate the impact of a hypothetical severely adverse 
macroeconomic scenario provided by the Federal Reserve and the Office of the Comptroller of the Currency on its financial 
condition and regulatory capital ratios over a nine-quarter time horizon. Under the scenario provided by the regulatory agencies 
for the Company's most recently completed stress test, all capital ratio measures remain above the minimum regulatory 
thresholds. Additional information concerning the annual stress test may be found on the Company's Investor Relations page at 
www.bokf.com under the "Presentations" tab. The results of future capital stress tests may place constraints on capital 
distributions or increases in required regulatory capital under certain circumstances.

Further discussion of regulatory capital, including regulatory capital amounts and ratios, is set forth under the heading 
“Liquidity and Capital” within “Management's Discussion and Analysis of Financial Condition and Results of Operations” and 
in Note 15 of the Company's Notes to Consolidated Financial Statements, both of which appear elsewhere herein.    

Executive and Incentive Compensation

Guidelines adopted by federal banking agencies prohibit excessive compensation as an unsafe and unsound practice and 
describe compensation as excessive when the amounts paid are unreasonable or disproportionate to the services performed by 
an executive officer, employee, director or principal shareholder. The Federal Reserve Board has issued comprehensive 
guidance on incentive compensation intended to ensure that the incentive compensation policies do not undermine safety and 
soundness by encouraging excessive risk taking. This guidance covers all employees that have the ability to materially affect 
the risk profile of an organization, either individually or as part of a group, based on key principles that (i) incentives do not 
encourage risk-taking beyond the organization's ability to identify and manage risk, (ii) compensation arrangements are 
compatible with effective internal controls and risk management, and (iii) compensation arrangements are supported by strong 
corporate governance, including active and effective board oversight. Deficiencies in compensation practices may affect 
supervisory ratings and enforcement actions may be taken if incentive compensation arrangements pose a risk to safety and 
soundness.  

Deposit Insurance

Substantially all of the deposits held by the subsidiary banks are insured up to applicable limits by the Deposit Insurance Fund 
(“DIF”) of the FDIC and are subject to deposit insurance assessments to maintain the DIF. In 2011, the FDIC released a final 
rule to implement provisions of the Dodd-Frank Act that affect deposit insurance assessments. Among other things, the Dodd-
Frank Act raised the minimum designated reserve ratio from 1.15% to 1.35% of estimated insured deposits, removed the upper 
limit of the designated reserve ratio, required that the designated reserve ratio reach 1.35% by September 30, 2020, and 
required that the FDIC offset the effect of increasing the minimum designated reserve ratio on depository institutions with total 
assets of less than $10 billion. The Dodd-Frank Act provided the FDIC flexibility in implementation of the increase in the 
designated reserve ratio, but it will ultimately result in increased deposit insurance costs to the Company. The Dodd-Frank Act 
also required that the FDIC redefine the assessment base to average consolidated assets minus average tangible equity. 

On June 30, 2016, the DIF rose above the 1.15%, resulting in a reduction of the initial assessment rate for all banks and 
implementing a 4.5% surcharge on insured depository institutions with total consolidated assets of $10 billion or more. The 
assessment base for the surcharge will be the regular assessment base reduced by $10 billion. If the DIF reserve ratio does not 
reach 1.35% by December 31, 2018, the FDIC will impose a shortfall assessment on banks with total consolidated assets of $10 
billion or more in the first quarter of 2019.

6

Dividends

A key source of liquidity for BOK Financial is dividends from BOKF, NA, which is limited by various banking regulations to 
net profits, as defined, for the year plus retained profits for the preceding two years. Dividends are further restricted by 
minimum capital requirements and the Company's internal capital policy. BOKF, NA's dividend limitations are discussed under 
the heading “Liquidity and Capital” within “Management's Discussion and Analysis of Financial Condition and Results of 
Operations”.

Source of Strength Doctrine

According to Federal Reserve Board policy, a bank holding company is expected to act as a source of financial strength to each 
subsidiary bank and to commit resources to support each such subsidiary. This support may be required at times when a bank 
holding company may not be able to provide such support. 

Transactions with Affiliates

The Federal Reserve Board regulates transactions between the Company and its subsidiaries. Generally, the Federal Reserve 
Act and Regulation W, as amended by the Dodd-Frank Act, limit the Company’s banking subsidiary and its subsidiaries, to 
lending and other “covered transactions” with affiliates. The aggregate amount of covered transactions a banking subsidiary or 
its subsidiaries may enter into with an affiliate may not exceed 10% of the capital stock and surplus of the banking subsidiary. 
The aggregate amount of covered transactions with all affiliates may not exceed 20% of the capital stock and surplus of the 
banking subsidiary.

Covered transactions with affiliates are also subject to collateral requirements and must be conducted on arm’s length 
terms. Covered transactions include (a) a loan or extension of credit by the banking subsidiary, including derivative contracts, 
(b) a purchase of securities issued to a banking subsidiary, (c) a purchase of assets by the banking subsidiary unless otherwise 
exempted by the Federal Reserve, (d) acceptance of securities issued by an affiliate to the banking subsidiary as collateral for a 
loan, and (e) the issuance of a guarantee, acceptance or letter of credit by the banking subsidiary on behalf of an affiliate. 

Bank Secrecy Act and USA PATRIOT Act

The Bank Secrecy Act (“BSA”) and The USA PATRIOT Act of 2001 (“PATRIOT Act”) imposes many requirements on 
financial institutions in the interest of national security and law enforcement. BSA requires banks to maintain records and file 
suspicious activity reports that are of use to law enforcement and regulators in combating money laundering and other financial 
crimes. The PATRIOT Act is intended to deny terrorists and criminals the ability to access the U.S. financial services system 
and places significantly greater requirements on financial institutions. Financial institutions, such as the Company and its 
subsidiaries, must have a designated BSA Officer, internal controls, independent testing and training programs commensurate 
with their size and risk profile. As part of its internal control program, a financial institution is expected to have effective 
customer due diligence and enhanced due diligence requirements for high-risk customers, as well as processes to prohibit 
transactions with entities subject to Office of Foreign Asset Control sanctions. Documentation and recordkeeping requirements, 
as well as system requirements, aimed at identifying and reporting suspicious activity reporting, must increase with the 
institution's size and complexity. Failure to implement or maintain adequate programs and controls to combat terrorist financing 
and money laundering may have serious legal, financial, and reputational consequences.

7

Governmental Policies and Economic Factors

The operations of BOK Financial and its subsidiaries are affected by legislative changes and by the policies of various 
regulatory authorities and, in particular, the policies of the Federal Reserve Board. The Federal Reserve Board has statutory 
objectives to maximize employment and maintain price stability. Among the instruments of monetary policy used by the 
Federal Reserve Board to implement these objectives are: open-market operations in U.S. Government securities, changes in 
the discount rate and federal funds rate on bank borrowings, and changes in reserve requirements on bank deposits. The effect 
of future changes in such policies on the business and earnings of BOK Financial and its subsidiaries is uncertain.

In response to the significant recession in business activity which began in 2007, the Federal Reserve took aggressive actions to 
reduce interest rates and provide liquidity. While many of the crisis-related programs have expired or been closed, government 
legislation and policies continue to be accommodative, including increases in government spending, reduction of certain taxes 
and promotion of home affordability programs. 

The Federal Reserve completed its bond purchase program designed to reduce longer–term rates in October of 2014. Although 
it continues to maintain an accommodative policy of reinvesting principal payments from its holdings of agency debt and 
agency mortgage–backed securities and rolling over maturing Treasury securities, it could either curtail reinvestment in or 
begin selling those securities at any time.  

As a result of signs of an improving economy, the Federal Reserve increased its target rate by 25 basis points in December of 
2016, the second such increase since the end of 2008. In addition, it has signaled its expectations for a gradual tightening cycle 
as the economy improves. The short–term effectiveness and long–term impact of these programs on the economy in general 
and on BOK Financial in particular are uncertain.

BOK Financial does not engage in operations in foreign countries, nor does it lend to foreign governments.

Foreign Operations

8

ITEM 1A.   RISK FACTORS

BOK Financial Corporation and its subsidiaries could be adversely affected by risks and uncertainties that could have a 
material impact on its financial condition and results of operations, as well as on its common stock and other financial 
instruments. Risk factors which are significant to the Company include, but are not limited to:

General and Regulatory Risk Factors

Adverse factors could impact BOK Financial's ability to implement its operating strategy.

Although BOK Financial has developed an operating strategy which it expects to result in continuing improved financial 
performance, BOK Financial cannot ensure that it will be successful in fulfilling this strategy or that this operating strategy will 
be successful. Achieving success is dependent upon a number of factors, many of which are beyond BOK Financial's direct 
control. Factors that may adversely affect BOK Financial's ability to implement its operating strategy include:

• 
• 
• 
• 
• 
• 
• 
• 

deterioration of BOK Financial's asset quality;
deterioration in general economic conditions, especially in BOK Financial's core markets;
inability to control BOK Financial's non-interest expenses;
inability to increase non-interest income;
inability to access capital;
decreases in net interest margins;
increases in competition;
adverse regulatory developments.

Substantial competition could adversely affect BOK Financial.

Banking is a competitive business. BOK Financial competes actively for loan, deposit and other financial services business in 
the southwest region of the United States. BOK Financial's competitors include a large number of small and large local and 
national banks, savings and loan associations, credit unions, trust companies, broker-dealers and underwriters, as well as many 
financial and non-financial firms that offer services similar to those of BOK Financial. Large national financial institutions 
have substantial capital, technology and marketing resources. Such large financial institutions may have greater access to 
capital at a lower cost than BOK Financial does, which may adversely affect BOK Financial's ability to compete effectively.

BOK Financial has expanded into markets outside of Oklahoma, where it competes with a large number of financial institutions 
that have an established customer base and greater market share than BOK Financial. BOK Financial may not be able to 
continue to compete successfully in these markets outside of Oklahoma. With respect to some of its services, BOK Financial 
competes with non-bank companies that are not subject to regulation. The absence of regulatory requirements may give non-
banks a competitive advantage.

Government regulations could adversely affect BOK Financial.

BOK Financial and BOKF, NA are subject to banking laws and regulations that limit the type of acquisitions and investments 
that we may make. In addition, certain permitted acquisitions and investments are subject to prior review and approval by 
banking regulators, including the Federal Reserve, OCC and FDIC. Banking regulators have broad discretion on whether to 
approve proposed acquisitions and investments. In deciding whether to approve a proposed acquisition, federal banking 
regulators will consider, among other things, the effect of the acquisition on competition; the convenience and needs of the 
communities to be served, including our record of compliance under the Community Reinvestment Act; and our effectiveness 
in combating money laundering. They will also consider our financial condition and our future prospects, including projected 
capital ratios and levels; the competence, experience, and integrity of our management; and our record of compliance with laws 
and regulations. 

The last several years have seen an increase in regulatory costs borne by the banking industry. Laws, regulations or policies 
currently affecting BOK Financial and its subsidiaries may change. The implementation of the Dodd-Frank Act has and will 
continue to affect BOK Financial’s businesses, including interchange revenue, mortgage banking, derivative and trading 
activities on behalf of customers, consumer products and funds management. 

9

 
Regulatory authorities may change their interpretation of these statutes and regulations, including the OCC, our primary 
regulator, and the CFPB, our regulator for certain designated consumer laws and regulations. Violations of laws and 
regulations could limit the growth potential of BOK Financial's businesses. We have made extensive investments in human 
and technological resources to address enhanced regulatory expectations, including investments in the areas of risk 
management, compliance, and capital planning. Recent political developments, including the change in administration in the 
United States, have added additional uncertainty to the implementation, scope and timing of changes in the regulatory 
environment for the banking industry and for the broader economy. 

Tax reform is a known priority of the new President along with the Ways and Means Committee, which introduced the 
Republican Blueprint for Tax Reform and is currently drafting proposed legislation. Both the Blueprint and the President's tax 
reform proposal have similar provisions. This alignment along with the Republican majority in Congress has significantly 
increased the likelihood of tax reform. Key proposals that may impact banks include lowering the corporate tax rate, full 
expensing of intangible assets, interest expense deductibility limited to interest income, and elimination of net operating loss 
carrybacks, most tax credits and special deductions. The impact to BOKF will depend on the final legislation, including the 
phase in provisions, which at this point is uncertain.

Political environment could negatively impact BOK Financial’s business.

As a result of the financial crisis and related government intervention to stabilize the banking system, there have been a series 
of laws and related regulations proposed or enacted in an attempt to ensure the crisis is not repeated. Many of the proposed new 
regulations are far-reaching. The intervention by the government also impacted populist sentiment with a negative view of 
financial institutions. High profile mistakes by the very largest banks in the country have continued to fuel negative sentiment 
towards the banking industry. This sentiment may increase litigation risk to the Company or have an adverse impact on BOK 
Financial’s future operations. 

Credit Risk Factors

Adverse regional economic developments could negatively affect BOK Financial's business.

At December 31, 2016, loans to businesses and individuals with collateral primarily located in Texas represented approximately 
32% of the total loan portfolio and loans to businesses and individuals with collateral primarily located in Oklahoma 
represented approximately 21% of our total loan portfolio. These geographic concentrations subject the loan portfolio to the 
general economic conditions within these areas. Poor economic conditions in Oklahoma, Texas or other markets in the 
southwest region may cause BOK Financial to incur losses associated with higher default rates and decreased collateral values 
in BOK Financial's loan portfolio. A regional economic downturn could also adversely affect revenue from brokerage and 
trading activities, mortgage loan originations and other sources of fee-based revenue.

Extended oil and gas commodity price downturns could negatively affect BOK Financial customers.

At December 31, 2016, 15% of BOK Financial's total loan portfolio is comprised of loans to borrowers in the energy industry. 
The energy industry is historically cyclical and prolonged periods of low oil and gas commodity prices could negatively impact 
borrowers' ability to pay. In addition, the Company does business in several major oil and natural gas producing states 
including Oklahoma, Texas and Colorado. The economies of these states could be negatively impacted by prolonged periods of 
low oil and gas commodity prices resulting in increased credit migration to classified and nonaccruing categories, higher loan 
loss provisions and risk of credit losses from both energy borrowers and businesses and individuals in those regional 
economies.

Other adverse economic factors affecting particular industries could have a negative effect on BOK Financial customers 
and their ability to make payments to BOK Financial.

Certain industry-specific economic factors also affect BOK Financial. For example, BOK Financial's loan portfolio includes 
commercial real estate loans. A downturn in the real estate industry in general or in certain segments of the commercial real 
estate industry in the southwest region could also have an adverse effect on BOK Financial's operations. Regulatory changes in 
healthcare may negatively affect our customers, which to date primarily has been focused in senior housing. A U.S. House 
proposal that provides states more flexibility in using Medicare/Medicaid funds may reduce healthcare reimbursement rates.

10

Adverse global economic factors could have a negative effect on BOK Financial customers and counterparties.

Economic conditions globally, including those of the European Union and China, could impact BOK Financial’s customers and 
counterparties with which we do business. We have no direct exposure to European sovereign debt and our aggregate gross 
exposure to European financial institutions totaled $6.9 million at December 31, 2016. Our exposure to Chinese financial 
institutions is limited. In addition, we have an aggregate gross exposure to internationally active domestic financial institutions 
of approximately $206 million at December 31, 2016 composed of $195 million of cash and securities positions and $11 
million of gross derivative positions. The financial condition of these institutions is monitored on an on-going basis. We have 
not identified any significant customer exposures to European sovereign debt, European financial institutions or Chinese 
financial institutions.

Liquidity and Interest Rate Risk Factors

Fluctuations in interest rates could adversely affect BOK Financial's business.

BOK Financial's business is highly sensitive to:

• 

• 
• 

the monetary policies implemented by the Federal Reserve Board, including the discount rate on bank borrowings and 
changes in reserve requirements, which affect BOK Financial's ability to make loans and the interest rates we may 
charge;
changes in prevailing interest rates, due to the dependency of the subsidiary banks on interest income;
open market operations in U.S. Government securities.

A significant increase in market interest rates, or the perception that an increase may occur, could adversely affect both BOK 
Financial's ability to originate new loans and BOK Financial's ability to grow. Conversely, a decrease in interest rates could 
result in acceleration in the payment of loans, including loans underlying BOK Financial's holdings of residential mortgage-
backed securities and termination of BOK Financial's mortgage servicing rights. In addition, changes in market interest rates, 
changes in the relationships between short-term and long-term market interest rates or changes in the relationships between 
different interest rate indices, could affect the interest rates charged on interest-earning assets differently than the interest rates 
paid on interest-bearing liabilities. This difference could result in an increase in interest expense relative to interest income, 
which would reduce the Company’s net interest revenue. In a rising interest rate environment, the composition of the deposit 
portfolio could shift resulting in a mix that is more sensitive to changes in interest rates than is the current mix. An increase in 
market interest rates also could adversely affect the ability of BOK Financial's floating-rate borrowers to meet their higher 
payment obligations. If this occurred, it could cause an increase in nonperforming assets and net charge-offs, which could 
adversely affect BOK Financial's business.

Changes in mortgage interest rates could adversely affect mortgage banking operations as well as BOK Financial's 
substantial holdings of residential mortgage-backed securities and mortgage servicing rights, and brokerage and trading 
revenue. 

Our available for sale residential mortgage-backed security portfolio represents investment interests in pools of residential 
mortgages, composing $5.6 billion or 17% of total assets of the Company at December 31, 2016. The fair value of residential 
mortgage-backed securities is highly sensitive to changes in interest rates. BOK Financial mitigates this risk somewhat by 
investing principally in shorter duration mortgage products, which are less sensitive to changes in interest rates. A significant 
decrease in interest rates may lead mortgage holders to refinance the mortgages constituting the pool backing the securities, 
subjecting BOK Financial to a risk of prepayment and decreased return on investment due to subsequent reinvestment at lower 
interest rates. A significant decrease in interest rates may also accelerate premium amortization. Conversely, a significant 
increase in interest rates may cause mortgage holders to extend the term over which they repay their loans, which delays the 
Company’s opportunity to reinvest funds at higher rates.

Residential mortgage-backed securities are also subject to credit risk from delinquency or default of the underlying loans. BOK 
Financial mitigates this risk somewhat by investing in securities issued by U.S. government agencies. Principal and interest 
payments on the loans underlying these securities are guaranteed by these agencies.

11

BOK Financial derives a substantial amount of revenue from mortgage loan activities, including $70 million from the 
production and sale of mortgage loans, $64 million from the servicing of mortgage loans, $46 million from the trading of U.S. 
agency residential mortgage backed securities and related financial instruments and $39 million from sales of financial 
instruments to other mortgage lenders in 2016. These activities, as well our substantial holdings of residential mortgage backed 
securities and mortgage servicing rights may be adversely affected by changes in government policies and programs.

In addition, as part of BOK Financial's mortgage banking business, BOK Financial has substantial holdings of mortgage 
servicing rights, totaling $247 million or 0.75% of total assets at December 31, 2016. The fair value of these rights is also very 
sensitive to changes in interest rates. Falling interest rates tend to increase loan prepayments, which may lead to a decrease in 
the value of related servicing rights. BOK Financial attempts to manage this risk by maintaining an active hedging program for 
its mortgage servicing rights. The Company's hedging program focuses on partially hedging the risk of changes in fair value, 
primarily related to changes mortgage interest rates. Other factors, such as short-term interest rates, which also impact the value 
of mortgage servicing rights, may not be hedged. The value of mortgage servicing rights may also decrease due to rising 
delinquency or default of the loans serviced, which are not hedged. This risk is mitigated somewhat by adherence to 
underwriting standards on loans originated for sale.

Market disruptions could impact BOK Financial’s funding sources.

BOK Financial’s subsidiary bank may rely on other financial institutions and the Federal Home Loan Bank of Topeka as a 
significant source of funds. Our ability to fund loans, manage our interest rate risk and meet other obligations depends on funds 
borrowed from these sources. The inability to borrow funds at market interest rates could have a material adverse effect on our 
operations.

Operating Risk Factors

Dependence on technology increases cybersecurity risk.

As a financial institution, we process a significant number of customer transactions and possess a significant amount of 
sensitive customer information. As technology advances, the ability to initiate transactions and access data has become more 
widely distributed among mobile phones, personal computers, automated teller machines, remote deposit capture sites and 
similar access points. These technological advances increase cybersecurity risk. While the Company maintains programs 
intended to prevent or limit the effects of cybersecurity risk, there is no assurance that unauthorized transactions or 
unauthorized access to customer information will not occur. The financial, reputational and regulatory impact of unauthorized 
transactions or unauthorized access to customer information could be significant.

We depend on third parties for critical components of our infrastructure.

We outsource a significant portion of our information systems, communications, data management and transaction processing 
to third parties. These third parties are sources of risk associated with operational errors, system interruptions or breaches, 
unauthorized disclosure of confidential information and misuse of intellectual property. If the service providers encounter any 
of these issues, we could be exposed to disruption of service, reputation damages, and litigation risk that could be material to 
our business. 

Risks Related to an Investment in Our Stock

Although publicly traded, BOK Financial's common stock has substantially less liquidity than the average trading market 
for a stock quoted on the NASDAQ National Market System.

A relatively small fraction of BOK Financial's outstanding common stock is actively traded. The risks of low liquidity include 
increased volatility of the price of BOK Financial's common stock. Low liquidity may also limit holders of BOK Financial's 
common stock in their ability to sell or transfer BOK Financial's shares at the price, time and quantity desired.

12

BOK Financial's principal shareholder controls a majority of BOK Financial's common stock.

Mr. George B. Kaiser owns approximately 61% of the outstanding shares of BOK Financial's common stock at December 31, 
2016. Mr. Kaiser is able to elect all of BOK Financial's directors and effectively control the vote on all matters submitted to a 
vote of BOK Financial's common shareholders. Mr. Kaiser's ability to prevent an unsolicited bid for BOK Financial or any 
other change in control could have an adverse effect on the market price for BOK Financial's common stock. A substantial 
majority of BOK Financial's directors are not officers or employees of BOK Financial or any of its affiliates. However, because 
of Mr. Kaiser's control over the election of BOK Financial's directors, he could change the composition of BOK Financial's 
Board of Directors so that it would not have a majority of outside directors.

Possible future sales of shares by BOK Financial's principal shareholder could adversely affect the market price of BOK 
Financial's common stock.

Mr. Kaiser has the right to sell shares of BOK Financial's common stock in compliance with the federal securities laws at any 
time, or from time to time. The federal securities laws will be the only restrictions on Mr. Kaiser's ability to sell. Because of his 
current control of BOK Financial, Mr. Kaiser could sell large amounts of his shares of BOK Financial's common stock by 
causing BOK Financial to file a registration statement that would allow him to sell shares more easily. In addition, Mr. Kaiser 
could sell his shares of BOK Financial's common stock without registration under Rule 144 of the Securities Act. Although 
BOK Financial can make no predictions as to the effect, if any, that such sales would have on the market price of BOK 
Financial's common stock, sales of substantial amounts of BOK Financial's common stock, or the perception that such sales 
could occur, could adversely affect market prices. If Mr. Kaiser sells or transfers his shares of BOK Financial's common stock 
as a block, another person or entity could become BOK Financial's controlling shareholder.

Statutory restrictions on subsidiary dividends and other distributions and debts of BOK Financial's subsidiaries could limit 
amounts BOK Financial's subsidiaries may pay to BOK Financial.

A substantial portion of BOK Financial's cash flow typically comes from dividends paid by BOKF, NA. Statutory provisions 
and regulations restrict the amount of dividends BOKF, NA may pay to BOK Financial without regulatory approval. 
Management also developed, and the BOK Financial board of directors approved, an internal capital policy that is more 
restrictive than the regulatory capital standards. In the event of liquidation, creditors of the subsidiary banks and other non-bank 
subsidiaries of BOK Financial are entitled to receive distributions from the assets of that subsidiary before BOK Financial, as 
holder of an equity interest in the subsidiaries, is entitled to receive any distributions. 

13

ITEM 1B.   UNRESOLVED STAFF COMMENTS

None.

ITEM 2.   PROPERTIES

BOK Financial and its subsidiaries own and lease improved real estate that is carried at $191 million, net of depreciation and 
amortization. The Company’s principal offices are located in leased premises in the Bank of Oklahoma Tower in Tulsa, 
Oklahoma. Banking offices are primarily located in Tulsa and Oklahoma City, Oklahoma; Dallas, Fort Worth and Houston, 
Texas; Albuquerque, New Mexico; Denver, Colorado; Phoenix, Arizona; and Kansas City, Kansas/Missouri. Primary 
operations facilities are located in Tulsa and Oklahoma City, Oklahoma; Dallas, Texas and Albuquerque, New Mexico. The 
Company’s facilities are suitable for their respective uses and present needs.

The information set forth in Notes 5 and 14 of the Company’s Notes to Consolidated Financial Statements, which appear 
elsewhere herein, provides further discussion related to properties.

ITEM 3.   LEGAL PROCEEDINGS

The information set forth in Note 14 of the Company’s Notes to Consolidated Financial Statements, which appear elsewhere 
herein, provides discussion related to legal proceedings.

ITEM 4.   MINE SAFETY DISCLOSURES

Not applicable.

14

 
 
PART II

ITEM 5.   MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND 
ISSUER PURCHASES OF EQUITY SECURITIES

BOK Financial’s $0.00006 par value common stock is traded on the NASDAQ Stock Market under the symbol BOKF. As of 
January 31, 2017, common shareholders of record numbered 755 with 65,489,810 shares outstanding.

The highest and lowest quarterly closing bid price for shares and cash dividends declared per share of BOK Financial common 
stock follows:

2016:

Low

High

Cash dividends declared

2015:

Low

High

Cash dividends declared

First

Second

Third

Fourth

$

44.72

$

51.36

$

58.49

$

58.60

0.43

64.61

0.43

69.31

0.43

$

53.37

$

60.18

$

57.09

$

61.67

0.42

70.72

0.42

70.15

0.42

67.72

84.13

0.44

58.92

72.44

0.43

15

 
 
 
 
 
 
 
 
 
Shareholder Return Performance Graph

Set forth below is a line graph comparing the change in cumulative shareholder return of the NASDAQ Index, the NASDAQ 
Bank Index, the KBW 50 Bank Index and the SNL U.S. Bank NASDAQ for the period commencing December 31, 2011 and 
ending December 31, 2016.*

Index
BOK Financial Corporation
NASDAQ Composite
SNL U.S. Bank NASDAQ
KBW 50

Period Ending December 31,

2011

2012

2013

2014

2015

2016

100.00
100.00
100.00
100.00

103.63
117.45
119.19
132.91

129.32
164.57
171.31
183.08

120.00
188.84
177.42
200.24

122.66
201.98
191.53
201.22

175.30
219.89
265.56
258.59

*  Graph assumes value of an investment in the Company's Common Stock for each index was $100 on December 31, 2011. The KBW 50 
Bank index is the Keefe, Bruyette & Woods, Inc. index, which is available only for calendar quarter end periods. Cash dividends on 
Common Stock are assumed to have been reinvested in BOK Financial Common Stock.

16

 
 
The following table provides information with respect to purchases made by or on behalf of the Company or any “affiliated 
purchaser” (as defined in Rule 10b-18(a)(3) under the Securities Exchange Act of 1934), of the Company’s common stock 
during the three months ended December 31, 2016.

Period

October 1, 2016 to October 31, 2016

November 1, 2016 to November 30, 2016

December 1, 2016 to December 31, 2016

Total 
Number of 
Shares 
Purchased 
as Part of 
Publicly 
Announced 
Plans or 
Programs 1
—

700,000

—

Maximum
Number of
Shares that
May Yet Be
Purchased
Under the
Plans

2,820,757

2,120,757

2,120,757

Total 
Number of 
Shares 
Purchased 2

Average 
Price Paid 
per Share

— $

700,000

$

— $

—

70.03

—

Total
1  On October 1, 2015, the Company's board of directors authorized the Company to repurchase up to five million shares of the Company's 
common stock. As of December 31, 2016, the Company had repurchased 2,879,243 shares under this plan. Future repurchases of the 
Company's common stock will vary based on market conditions, regulatory limitations and other factors. 

700,000

700,000

2  The Company may repurchase shares from employees to cover the exercise price and taxes in connection with employee shared-based 

compensation.

17

 
 
 
 
ITEM 6.  SELECTED FINANCIAL DATA

The selected financial data is set forth within Table 1 of Item 7, “Management’s Discussion and Analysis of Financial 
Condition and Results of Operations.”

Item 7.  Management’s Discussion and Analysis of Financial Condition and Results of Operations

Table 1 -- Consolidated Selected Financial Data

(Dollars in thousands, except per share data)

Selected Financial Data

For the year:

Interest revenue

Interest expense

Net interest revenue

Provision for for credit losses

Fees and commissions revenue

Net income attributable to BOK Financial

Corporation shareholders

Period-end:

Loans

Assets

Deposits

Subordinated debentures

Shareholders’ equity
Nonperforming assets1

2016

2015

2014

2013

2012

December 31,

$

829,117

$

766,828

$

732,239

$

745,371

$

794,871

81,889

747,228

65,000

686,748

63,474

703,354

34,000

650,646

67,045

665,194

—

621,319

70,894

674,477

(27,900)

603,844

87,322

707,549

(22,000)

628,880

232,668

288,565

292,435

316,609

351,191

16,989,660

15,941,154

14,208,037

12,792,264

32,772,281

31,476,128

29,089,698

27,015,432

22,748,095

21,088,158

21,140,859

20,269,327

144,640

226,350

347,983

347,802

3,274,854

3,230,556

3,302,179

3,020,049

356,641

251,908

256,617

247,743

12,311,456

28,148,631

21,179,060

347,633

2,957,860

276,716

Profitability Statistics

Earnings per share (based on average equivalent

shares):

Basic

Diluted

Percentages (based on daily averages):

Return on average assets

Return on average shareholders' equity

Average total equity to average assets

Common Stock Performance

Per Share:

Book value per common share

Market price: December 31 close

Market range – High close bid price

Market range – Low close bid price

Cash dividends declared

Dividend payout ratio

$

$

$

3.53

3.53

$

4.22

4.21

$

4.23

4.22

$

4.61

4.59

5.15

5.13

0.72%

7.02%

10.38%

0.94%

8.65%

11.03%

1.04%

9.21%

11.47%

1.16%

10.64%

11.00%

1.34%

12.24%

11.05%

$

50.12

83.04

84.13

44.72

1.73

$

49.03

59.79

72.44

53.37

1.69

$

47.78

60.04

70.18

57.87

1.62

$

43.88

66.32

69.36

55.05

1.54

48.81%

40.03%

38.35%

33.43%

43.29

54.46

59.77

52.56

4

2.47
48.01% 4

18

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 1 -- Consolidated Selected Financial Data

(Dollars in thousands, except per share data)

2016

2015

2014

2013

2012

December 31,

Selected Balance Sheet Statistics

Period-end:

Common equity Tier 1 ratio2
Tier 1 capital ratio2
Total capital ratio2
Leverage ratio2
Allowance for loan losses to nonaccruing loans5
Allowance for loan losses to loans
Combined allowances for credit losses to loans 3

Miscellaneous (at December 31)

Number of employees (full-time equivalent)

Number of TransFund locations

Fiduciary assets

11.21%

11.21%

12.81%

8.72%

12.13%

12.13%

13.30%

9.25%

N/A

13.33%

14.66%

9.96%

N/A

13.77%

15.56%

10.05%

N/A

12.78%

15.13%

9.01%

112.33%

180.09%

245.34%

184.71%

160.92%

1.45%

1.52%

4,884

2,021

1.41%

1.43%

4,789

1,972

1.33%

1.34%

4,743

2,080

1.45%

1.47%

4,632

1,998

1.75%

1.77%

4,704

1,970

$41,781,564

$38,333,638

$35,997,877

$30,137,092

$ 25,829,038

Mortgage loans serviced for others

21,997,568

19,678,226

16,162,887

13,718,942

11,981,624

1  Includes nonaccruing loans, renegotiated loans and assets acquired in satisfaction of loans. Excludes loans past due 90 days or more and still accruing.
2  Risk-based capital ratios for 2016 and 2015 calculated under revised regulatory capital rules issued July 2013 and effective for the Company on January 1, 

2015. Previous risk-based ratios presented are calculated in accordance with then current regulatory capital rules. 

3  Includes allowance for loan losses and accrual for off-balance sheet credit risk.
4  Includes $1.00 per share special dividend.
5  Excludes residential mortgage loans guaranteed by agencies of the U.S. government.

Management’s Assessment of Operations and Financial Condition

Overview

The following discussion is management’s analysis to assist in the understanding and evaluation of the financial condition and 
results of operations of BOK Financial Corporation (“BOK Financial” or “the Company”). This discussion should be read in 
conjunction with the consolidated financial statements and footnotes and selected financial data presented elsewhere in this 
report.

The first quarter of 2016 began with a continued decline in energy prices that started in June of 2014. West Texas Intermediate 
crude oil fell to a low of $26 per barrel in February of 2016, rebounded and then stabilized in a range between $40 and $50 a 
barrel by June. In November, the Organization of Petroleum Exporting Countries ("OPEC") announced production cuts of 1.2 
million barrels per day in 2017 further supporting improvement in the supply and demand imbalance. The prolonged low price 
environment significantly impacted oil and gas producers and service companies supporting those industries. During the year, 
these companies reduced capital expenditure spending, cut headcount and focused on paying down debt and strengthening their 
balance sheets. These actions slowed growth within our geographical footprint, but to date have not had a significant direct 
impact. Moving into 2017, the industry remains cautious, but is poised for continued improvement as the supply and demand 
imbalance tightens. 

For 2016, overall U.S. economic activity continued at a moderate pace and unemployment improved. National unemployment 
rates declined to 4.7% in December of 2016 from 5.0% in December of 2015. The minutes of the Federal Open Market 
Committee ("FOMC") of the Federal Reserve for December indicated continued strengthening of labor market and a moderate 
rise in household spending. However, business investment has remained soft. While inflation has increased, it is still below the 
Federal Reserve's 2% long-run objective. The Federal Reserve policies remain accommodative in order to foster maximum 
employment and price stability. 

Investment returns were strong for 2016. The S&P 500 index was up 12% for the year, with 5% of that gain coming after the 
November election. This represents the 8th year in a row of positive returns for the S&P 500 index. Small cap stock also 
performed very well, up over 21% for 2016. 

19

 
 
 
 
 
 
 
 
 
 
 
 
 
Short term interest rates, the rates most influenced by the Federal Reserve, moved up slightly during the year. As expected, the 
FOMC voted to raise the target range for the federal funds rate by ¼ percentage point in December of 2016, bringing it from ½ 
to ¾ percent. With the federal funds rate increase in December of 2015, the Federal Reserve ended an extraordinary seven-year 
period during which the federal funds rate was held near zero to support the recovery of the economy from the worst financial 
crisis and recession since the Great Depression. Long-term rates saw more volatility during 2016. The 10-year U.S. Treasury 
note started 2016 with a yield of 2.27%, dropped to a low of 1.36% in early July and then rose to 2.45% at year-end. We expect 
rates to continue to increase during 2017. The yield curve is also expected to steepen, with long-term interest rates up more 
than short-term interest rates through the end of 2017. 

The markets have reacted positively to the outcome of the presidential election on the expectation of tax reform, decreased 
regulation, support of the fossil fuel industry and focus on the return of capital stranded offshore. But uncertainty exists as to 
the ability to deliver on these promised economic reforms. Potential missteps in trade negotiations, the impact of a strong dollar 
and budget deficits also remain as concerns.

20

Performance Summary

Net income for the year ended December 31, 2016 totaled $232.7 million or $3.53 per diluted share compared with net income 
of $288.6 million or $4.21 per diluted share for the year ended December 31, 2015. 

Highlights of 2016 included:

•  Net interest revenue totaled $747.2 million for 2016, up from $703.4 million for 2015 primarily due to growth in average 
loans. The benefit of an increase in short-term interest rates on the loan portfolio and interest-bearing cash and cash 
equivalent yields was offset by higher borrowing costs. Net interest margin was 2.66% for 2016 compared to 2.60% for 
2015.

• 

Fees and commissions revenue increased $36.1 million or 6% over 2015 to $686.7 million for 2016 with growth in most 
revenue categories. Fiduciary and asset management revenue grew by $9.3 million due to decreased fee waivers and 
asset growth from acquisitions. Brokerage and trading revenue was up primarily due to increased customer hedging 
revenue. Mortgage banking revenue increased $7.9 million primarily related to increased servicing revenue. Transaction 
card revenue grew $7.1 million over the prior year due to transaction growth.

•  The change in the fair value of mortgage servicing rights, net of economic hedges, decreased other operating revenue by 
$28.4 million in 2016 and by $7.9 million in 2015. An unexpected 85 basis point increase in the 10-year U.S. Treasury 
interest rate and related interest rates due to the market's reaction to the outcome of the U.S. presidential election increased 
the fair value of our servicing rights $39.8 million. The fair value of our economic hedges decreased $56.8 million.

•  Operating expenses totaled $1.0 billion, an increase of $121.4 million or 14% over the prior year, including $9.1 million
of litigation and settlement expenses, $7.5 million of integration costs related to the Mobank acquisition and $5.0 million
of severance costs related to the previously announced reduction of workforce to better align expenses with expected 
revenue growth. Excluding these items, personnel costs increased $31.3 million or 6%, primarily due to increased incentive 
compensation expense. Non-personnel expenses increased $68.5 million or 18%, primarily due to increased mortgage 
banking expense related to the effect of increased prepayments on our mortgage servicing rights, higher deposit insurance 
expense related to elevated criticized and classified asset levels and a new surcharge on banks over $10 billion in total 
assets and continued upgrades of our information technology infrastructure and cybersecurity.

•  After evaluating all credit factors, the Company determined that a $65.0 million provision for credit losses was necessary 
in 2016, primarily due to credit migration in the energy portfolio. A $34.0 million provision for credit losses was necessary 
in 2015. The Company had net charge-offs of $34.8 million or 0.21% of average loans for 2016 compared to a net recovery 
of $2.9 million or (0.02)% of average loans for 2015. Gross charge-offs increased to $42.6 million in 2016 from $15.2 
million in 2015, primarily due to energy loans.

•  The combined allowance for credit losses totaled $257 million or 1.52% of outstanding loans at December 31, 2016 

compared to $227 million or 1.43% of outstanding loans at December 31, 2015. 

•  Nonperforming assets not guaranteed by U.S. government agencies totaled $263 million or 1.56% of outstanding loans 
and repossessed assets (excluding those guaranteed by U.S. government agencies) at December 31, 2016 and $156 million
or 0.99% of outstanding loans and repossessed assets (excluding those guaranteed by U.S. government agencies) at 
December 31, 2015. Excluding assets guaranteed by U.S. government agencies, nonaccruing loans increased $94 million 
and repossessed assets increased $14 million during 2016. 

• 

• 

Period-end outstanding loan balances were $17.0 billion at December 31, 2016, an increase of $1.0 billion over the prior 
year. The acquisition of Mobank added $485 million of loans, including $289 million of commercial loans and $87 million 
of commercial real estate balances. Commercial loan balances grew by $138 million or 1% and commercial real estate 
loans increased $550 million or 17%. Residential mortgage loans increased $73 million. Personal loans increased $287 
million.

Period-end deposits totaled $22.7 billion at December 31, 2016, up $1.7 billion over December 31, 2015. The Mobank 
acquisition added $624 million in deposits. Demand deposit accounts increased by $939 million and interest-bearing 
transaction deposits increased $866 million, partially offset by a $184 million decrease in time deposit balances. 

•  The Company's common equity Tier 1 capital ratio was 11.21% at December 31, 2016. In addition, the Company's Tier 
1  capital  ratio  was  11.21%,  total  capital  ratio  was  12.81%  and  leverage  ratio  was  8.72%  at  December 31,  2016. At 
December 31, 2015, the Company's Tier 1 capital ratio was 12.13% at December 31, 2015, the total capital ratio was 
13.30% and the leverage ratio was 9.25%. 

21

•  The  Company  repurchased  1,005,169  shares  at  an  average  price  of  $66.45  per  share  during  2016.  The  Company 

repurchased 3,634,578 shares at an average price of $63.15 during 2015.

•  The Company paid cash dividends of $1.73 per common share during 2016 and $1.69 per common share in 2015. 

Net income for the fourth quarter of 2016 totaled $50.0 million or $0.76 per diluted share compared to $59.6 million or $0.89 
per diluted share for the fourth quarter of 2015. 

Highlights of the fourth quarter of 2016 included:

•  Net interest revenue totaled $194.2 million for the fourth quarter of 2016, up $12.9 million over the fourth quarter of 
2015. Net interest margin was 2.69% for the fourth quarter of 2016, up from 2.64% for the fourth quarter of 2015. Net 
interest revenue increased primarily due to the growth in average loan balances and improving loan yields. Trading 
securities balances also increased and yields improved, partially offset by lower yields on the fair value option securities 
portfolio and increased funding costs.

•  Other operating revenue was $143.8 million for the fourth quarter of 2016, a decrease of $15.2 million compared to the 
fourth quarter of 2015. Fees and commissions revenue was up $8.3 million over the fourth quarter of 2015. The fourth 
quarter of 2016 included a $17.0 million decrease in the fair value of mortgage servicing rights, net of economic hedges 
and a $5.0 million decrease in the net fair value of trading portfolio positions related to an unexpected 85 basis point 
increase in the 10-year U.S. Treasury interest rate and related interest rates primarily due to the market's reaction to the 
outcome of the U.S. presidential election. Mortgage banking revenue increased $5.5 million over the fourth quarter of 
2015. Fiduciary and asset management revenue and transaction card revenue were both up over the fourth quarter of 
2015. 

•  Operating expenses totaled $265.5 million, an increase of $35.1 million over the prior year. Excluding the impact of $5.0 
million of severance and other expenses related to the workforce reductions and $4.7 million of integration costs related 
to the Mobank acquisition in the fourth quarter of 2016, other operating expense increased $25.4 million over the fourth 
quarter of 2015. Personnel expense increased $3.5 million primarily due to cash-based incentive compensation. Non-
personnel expense was up $21.9 million primarily due to mortgage banking, deposit insurance, professional fees and 
services and occupancy and equipment expenses. We also made a $2.0 million cash contribution to the BOK Charitable 
Foundation in 2016.

•  No provision for credit losses was recorded in the fourth quarter of 2016 due to improving credit metrics, largely driven 
by energy price stability. A $22.5 million provision for credit losses was recorded in the fourth quarter of 2015. The 
Company had a net recovery of $1.2 million in the fourth quarter of 2016 compared to net charge-offs of $3.0 million in 
the fourth quarter of 2015. Gross charge-offs were down to $1.7 million compared to $4.9 million in the prior year.

22

Critical Accounting Policies & Estimates

The Consolidated Financial Statements and accompanying notes are prepared in accordance with generally accepted 
accounting principles in the United States of America (“GAAP”). The Company's accounting policies are more fully described 
in Note 1 of the Consolidated Financial Statements. Management makes significant assumptions and estimates in the 
preparation of the Consolidated Financial Statements and accompanying notes in conformity with GAAP that may be highly 
subjective, complex and subject to variability. Actual results could differ significantly from these assumptions and estimates. 
The following discussion addresses the most critical areas where these assumptions and estimates could affect the financial 
condition, results of operations and cash flows of the Company. These critical accounting policies and estimates have been 
discussed with the appropriate committees of the Board of Directors.

Allowance for Loan Losses and Accrual for Off-Balance Sheet Credit Risk 

The appropriateness of the allowance for loan losses and accrual for off-balance sheet credit risk is assessed quarterly by 
management based on an ongoing evaluation of the probable estimated losses inherent in the loan portfolio and probable 
estimated losses on unused commitments to provide financing. A consistent, well-documented methodology has been 
developed and is applied by an independent Credit Administration department to ensure consistency across the Company. The 
allowance for loan losses consists of specific allowances attributed to certain impaired loans that have not yet been charged 
down to amounts we expect to recover, general allowances for unimpaired loans that are based on estimated loss rates by loan 
class and nonspecific allowances for risks beyond factors specific to a particular portfolio segment or loan class. There have 
been no material changes in the approach or techniques utilized in developing the allowance for loan losses and accrual for off-
balance sheet credit risk during 2016.

Loans are considered impaired when it is probable that we will not collect all amounts due according to the contractual terms of 
the loan agreements, including loans modified in a troubled debt restructuring. Internally risk graded loans are evaluated 
individually for impairment. Substantially all commercial and commercial real estate loans and certain residential mortgage and 
personal loans are risk graded through a quarterly evaluation of the borrower's ability to repay. 

Specific allowances for impaired loans that have not yet been charged down to amounts we expect to recover are measured by 
an evaluation of estimated future cash flows discounted at the loan's initial effective interest rate or the fair value of collateral 
for certain collateral dependent loans. Collateral value of real property is generally based on third party appraisals that conform 
to Uniform Standards of Professional Appraisal Practice, less estimated selling costs. Appraised values are on an “as-is” basis 
and generally are not adjusted by the Company. Updated appraisals are obtained at least annually or more frequently if market 
conditions indicate collateral values may have declined. Collateral value of mineral rights is determined by our internal staff of 
engineers based on projected cash flows under current market conditions. The value of other collateral is generally determined 
by our special assets staff based on liquidation cash flows under current market conditions. Collateral values and available cash 
resources that support impaired loans are evaluated quarterly. Historical statistics may be used as a practical way to estimate 
impairment in limited situations, such as when a collateral dependent loan is identified as impaired near the end of a reporting 
period until an updated appraisal of collateral value is received or a full assessment of future cash flows is completed. Estimates 
of future cash flows and collateral values require significant judgments and may be volatile. 

General allowances for unimpaired loans are based on estimated loss rates by loan class. The appropriate historical gross loss 
rate for each loan class is determined by the greater of the current loss rate based on the most recent twelve months or a ten-
year average gross loss rate. Recoveries are not directly considered in the estimation of historical loss rates. Recoveries 
generally do not follow predictable patterns and are not received until well-after the charge-off date as a result of protracted 
legal proceedings. For risk graded loans, historical loss rates are adjusted for changes in risk rating. For each loan class, the 
weighted average current risk grade is compared to the weighted average long-term risk grade. This comparison determines 
whether the risk in each loan class is increasing or decreasing. Historical loss rates are adjusted upward or downward in 
proportion to changes in weighted average risk grading. General allowances for unimpaired loans also consider inherent risks 
identified for a given loan class. Inherent risks include consideration of the loss rates that most appropriately represent the 
current credit cycle and other factors attributable to a specific loan class which have not yet been represented in the historical 
gross loss rates or risk grading. Examples of these factors include changes in commodity prices or engineering imprecision, 
which may affect the value of reserves that secure our energy loan portfolio, construction risk that may affect commercial real 
estate loans, changes in regulations and public policy that may disproportionately impact health care loans and changes in loan 
product types.  

Nonspecific allowances are maintained for risks beyond factors specific to a particular portfolio segment or loan class. These 
factors include trends in the economy in our primary lending areas, concentrations in loans with large balances and other 
relevant factors. 

23

Fair Value Measurement

Certain assets and liabilities are recorded at fair value in the Consolidated Financial Statements. Fair value is defined by 
applicable accounting guidance as the price to sell an asset or transfer a liability in an orderly transaction between market 
participants in the principal markets for the given asset or liability at the measurement date based on market conditions at that 
date. An orderly transaction assumes exposure to the market for a customary period for marketing activities prior to the 
measurement date and not a forced liquidation or distressed sale.

A hierarchy for fair value has been established that prioritizes the inputs of valuation techniques used to measure fair value into 
three broad categories: unadjusted quoted prices in active markets for identical assets or liabilities (Level 1), other observable 
inputs that can be observed either directly or indirectly (Level 2) and unobservable inputs for assets or liabilities (Level 3). Fair 
value may be recorded for certain assets and liabilities every reporting period on a recurring basis or under certain 
circumstances on a non-recurring basis.

The following represents significant fair value measurements included in the Consolidated Financial Statements based on 
estimates. See Note 18 of the Consolidated Financial Statements for additional discussion of fair value measurement and 
disclosure included in the Consolidated Financial Statements.  

Mortgage Servicing Rights

We have a significant investment in mortgage servicing rights. Our mortgage servicing rights are primarily retained 
from sales in the secondary market of residential mortgage loans we have originated or purchased from correspondent 
lenders. Occasionally, mortgage servicing rights may be purchased from other lenders. Both originated and purchased 
mortgage servicing rights are initially recognized at fair value. We carry all mortgage servicing rights at fair value. 
Changes in fair value are recognized in earnings as they occur.

There is no active market for mortgage servicing rights after origination. The fair value of mortgage servicing rights is 
determined by discounting the projected cash flows. Certain significant assumptions and estimates used in valuing 
mortgage servicing rights are based on current market sources including projected prepayment speeds, assumed 
servicing costs, earnings on escrow deposits, ancillary income and discount rates. Assumptions used to value our 
mortgage servicing rights are considered significant unobservable inputs and represent our best estimate of 
assumptions that market participants would use to value this asset. A separate third party model is used to estimate 
prepayment speeds based on interest rates, housing turnover rates, estimated loan curtailment, anticipated defaults and 
other relevant factors. The prepayment model is updated periodically for changes in market conditions and adjusted to 
better correlate with actual performance of our servicing portfolio. The discount rate is based on benchmark rates for 
mortgage loans plus a market spread expected by investors in servicing rights. Significant assumptions used to 
determine the fair value of our mortgage servicing rights are presented in Note 7 to the Consolidated Financial 
Statements. At least annually, we request estimates of fair value from outside sources to corroborate the results of the 
valuation model.

The assumptions used in this model are primarily based on mortgage interest rates. Evaluation of the effect of a 
change in one assumption without considering the effect of that change on other assumptions is not meaningful. 
Considering all related assumptions, we expect a 50 basis point increase in primary mortgage interest rates to increase 
the fair value of our servicing rights by $25 million. We expect a $29 million decrease in the fair value of our 
mortgage servicing rights from a 50 basis point decrease in primary mortgage interest rates.  

Valuation of Derivative Instruments

We use interest rate derivative instruments to manage our interest rate risk. We also offer interest rate, commodity, 
foreign exchange and equity derivative contracts to our customers. All derivative instruments are carried on the 
balance sheet at fair value. Fair values for exchange-traded contracts are based on quoted prices in an active market for 
identical instruments. Fair values for over-the-counter interest rate contracts used to manage our interest rate risk are 
generated internally using third-party valuation models. Inputs used in third-party valuation models to determine fair 
values are considered significant other observable inputs. Fair values for interest rate, commodity, foreign exchange 
and equity contracts used in our customer hedging programs are based on valuations generated internally by third-
party provided pricing models. These models use significant other observable market inputs to estimate fair values. 
Changes in assumptions used in these pricing models could significantly affect the reported fair values of derivative 
assets and liabilities, though the net effect of these changes should not significantly affect earnings.  

24

Credit risk is considered in determining the fair value of derivative instruments. Deterioration in the credit rating of 
customers or dealers reduces the fair value of asset contracts. The reduction in fair value is recognized in earnings 
during the current period. Fair value adjustments are based on various risk factors including but not limited to 
counterparty credit rating or equivalent loan grading, derivative contract notional size, price volatility of the 
underlying commodity, duration of the derivative contracts and expected loss severity. Expected loss severity is based 
on historical losses for similarly risk-graded commercial loan customers. Deterioration in our credit rating below 
investment grade would affect the fair value of our derivative liabilities. In the event of a credit down-grade, the fair 
value of our derivative liabilities would decrease. The reduction in fair value would be recognized in earnings in the 
current period. The impact of credit valuation adjustments on the total valuation of derivative contracts was not 
significant. 

Valuation of Securities

The fair value of our securities portfolio is generally based on a single price for each financial instrument provided to 
us by a third-party pricing service determined by one or more of the following:

•  Quoted prices for similar, but not identical, assets or liabilities in active markets;
•  Quoted prices for identical or similar assets or liabilities in inactive markets;
• 

Inputs other than quoted prices that are observable, such as interest rate and yield curves, volatilities, 
prepayment speeds, loss severities, credit risks and default rates;

•  Other inputs derived from or corroborated by observable market inputs.

The underlying methods used by the third-party pricing services are considered in determining the primary inputs used 
to determine fair values. We evaluate the methodologies employed by the third-party pricing services by comparing 
the price provided by the pricing service with other sources, including brokers' quotes, sales or purchases of similar 
instruments and discounted cash flows to establish a basis for reliance on the pricing service values. Significant 
differences between the pricing service provided value and other sources are discussed with the pricing service to 
understand the basis for their values. Based on all observable inputs, management may adjust prices obtained from 
third-party pricing services to more appropriately reflect the prices that would be received to sell assets or paid to 
transfer liabilities in orderly transactions in the current market. No significant adjustments were made to prices 
provided by third-party pricing services at December 31, 2016 or December 31, 2015.

Valuation of Impaired Loans and Real Estate and Other Repossessed Assets

The fair value of collateral for certain impaired loans and real estate and other repossessed assets is measured on a 
non-recurring basis. The fair value of real estate is generally based on unadjusted third-party appraisals derived 
principally from or corroborated by observable market data. Fair value measurements based on these appraisals are 
considered to be based on Level 2 inputs. Fair value measurements based on appraisals that are not based on 
observable inputs or that require significant adjustments by us or fair value measurements that are not based on third-
party appraisals are considered to be based on Level 3 inputs. Significant unobservable inputs include listing prices for 
comparable assets, uncorroborated expert opinions or management's knowledge of the collateral or industry.

The fair value of mineral rights is generally determined by our internal staff of engineers based on projected cash 
flows from proven oil and gas reserves under existing economic and operating conditions. Proven oil and gas reserves 
are estimated quantities that geological and engineering data demonstrate, with reasonable certainty, to be recoverable 
in future years from known reservoirs using existing prices and costs. Projected cash flows incorporate assumptions 
related to a number of factors including production, sales prices, operating expenses, severance, ad valorem taxes, 
capital costs and appropriate discount rate. Fair values determined through this process are considered to be based on 
Level 3 inputs.  

Income Taxes

Determination of income tax expense and related assets and liabilities is complex and requires estimates and judgments when 
applying tax laws, rules, regulations and interpretations. It also requires judgments as to future earnings and the timing of future 
events. Accrued income taxes represent an estimate of net amounts due to or from taxing jurisdictions based upon these 
estimates, interpretations and judgments.

25

 
Management evaluates the Company's current tax expense or benefit based upon estimates of taxable income, tax credits and 
statutory tax rates. Annually, we file tax returns with each jurisdiction where we conduct business and adjust recognized income 
tax expense or benefit to filed tax returns.

We recognize deferred tax assets and liabilities based upon the differences between the values of assets and liabilities as 
recognized in the financial statements and their related tax basis using enacted tax rates in effect for the year in which the 
differences are expected to be recovered or settled. A valuation allowance is provided when it is more likely than not that some 
portion of the entire deferred tax asset may not be realized based on taxes previously paid in net loss carry-back periods and 
other factors.  

We also recognize the benefit of uncertain income tax positions when based upon all relevant evidence, it is more-likely-than-
not that our position would prevail upon examination, including resolution of related appeals or litigation, based upon the 
technical merits of the position. Unrecognized tax benefits, including estimated interest and penalties, are part of our current 
accrued income tax liability. Estimated penalties and interest are recognized in income tax expense. Income tax expense in 
future periods may decrease if an uncertain tax position is favorably resolved, generally upon completion of an examination by 
the taxing authorities, expiration of a statute of limitations, or changes in facts and circumstances.

26

Results of Operations

Net Interest Revenue and Net Interest Margin

Net interest revenue is the interest earned on debt securities, loans and other interest-earning assets less interest paid for 
interest-bearing deposits and other borrowings. The net interest margin is calculated by dividing tax-equivalent net interest 
revenue by average interest-earning assets. Net interest spread is the difference between the average rate earned on interest-
earning assets and the average rate paid on interest-bearing liabilities. Net interest margin is typically greater than net interest 
spread due to interest income earned on assets funded by non-interest bearing liabilities such as demand deposits and equity.

Tax-equivalent net interest revenue totaled $764.8 million for 2016, up from $715.8 million for 2015. Net interest margin was 
2.66% for 2016 and 2.60% for 2015. Tax-equivalent net interest revenue increased $49.0 million over the prior year. Net 
interest revenue increased $47.2 million from growth in earning assets and increased $1.8 million due to rates. The benefit of 
an increase in short-term interest rates on the loan portfolio and interest-bearing cash and cash equivalent yields was offset by 
higher borrowing costs. Table 2 shows the effects on net interest revenue of changes in average balances and interest rates for 
the various types of earning assets and interest-bearing liabilities. In addition, see the Annual and Quarterly Financial Summary 
of consolidated daily average balances, yields and rates following the Consolidated Financial Statements.

The tax-equivalent yield on earning assets was 2.95% for 2016 compared to 2.84% in 2015. Loan yields increased 5 basis 
points compared to the prior year primarily due to growth in variable rate loans and an increase in short-term interest rates. The 
yield on trading securities increased 94 basis points to 3.43% due to a change in mix toward more higher-yielding U.S. agency 
residential mortgage-backed securities. The yield on interest-bearing cash and cash equivalents increased 26 basis points to 
0.53%. The available for sale securities portfolio yield increased 4 basis points to 2.03%. The benefit from improved yields on 
investment securities was offset by lower yields on restricted equity securities and fair value option securities. Funding costs 
increased 7 basis points over 2015. The cost of interest-bearing deposits decreased 1 basis point, while the cost of other 
borrowed funds increased 25 basis points, primarily due to increases in federal funds rates by the Federal Reserve in the fourth 
quarters of 2016 and 2015. The cost of subordinated debentures increased 98 basis points as lower variable rate debt 
outstanding during 2015 was replaced by higher fixed rate debt. The Company issued $150 million of 40 year, 5.375% fixed 
rate subordinated debt during the second quarter that replaced $227 million of floating rate subordinated debt based on three-
month LIBOR plus 0.69%. The benefit to net interest margin from earning assets funded by non-interest bearing liabilities was 
13 basis points for 2016, compared to 11 basis points for 2015.

Average earning assets for 2016 increased $1.2 billion or 4% over 2015. Average loans, net of allowance for loan losses, 
increased $1.3 billion due primarily to growth in average commercial and commercial real estate loans. Average trading 
securities balances increased $168 million primarily related to the addition of a new group trading in U.S. mortgage-backed 
securities during 2016. The average balance of available for sale securities, which consists largely of residential and 
commercial mortgage-backed securities guaranteed by U.S. government agencies, decreased $152 million. We purchase 
securities to supplement earnings and to manage interest rate risk. We have reduced the size of our bond portfolio during 2014, 
2015 and 2016 through normal monthly runoff to better position the balance sheet for an environment of rising longer-term 
rates. Our outlook for earning assets is for continued growth in loan balances, partially offset by a reduction in the securities 
portfolio balance. We expect mid single digit annualized loan growth for 2017. We expect stable to rising net interest margin 
and increasing net interest revenue. 

Growth in average assets was funded by increased borrowings from the Federal Home Loan Banks and demand deposit growth, 
partially offset by lower interest-bearing deposits and subordinated debt balances. Total average deposits were largely 
unchanged compared to the prior year. Average demand deposit balances grew by $426 million over the prior year. This growth 
was offset by a $328 million decrease in average time deposits and a $175 million decrease in average interest-bearing 
transaction account balances. Average borrowed funds increased $1.6 billion over the prior year. Borrowings from the Federal 
Home Loan Banks increased $1.1 billion, partially offset by decreased funds purchased, repurchase agreements and 
subordinated debenture balances compared to the prior year. 

27

Our overall objective is to manage the Company’s balance sheet to be relatively neutral to changes in interest rates as is further 
described in the Market Risk section of this report. As shown in Table 20, approximately 81% of our commercial and 
commercial real estate loan portfolios are either variable rate loans or fixed rate loans that will re-price within one year. These 
loans are funded primarily by deposit accounts that are either non-interest bearing, or that re-price more slowly than the 
loans. The result is a balance sheet that would be asset sensitive, which means that assets generally re-price more quickly than 
liabilities. Among the strategies that we use to manage toward a relatively rate-neutral position, we purchase fixed rate 
residential mortgage-backed securities issued primarily by U.S. government agencies and fund them with market rate sensitive 
liabilities. The liability-sensitive nature of this strategy provides an offset to the asset-sensitive characteristics of our loan 
portfolio. We also may use derivative instruments to manage our interest rate risk. 

The effectiveness of these strategies is reflected in the overall change in net interest revenue due to changes in interest rates as 
shown in Table 2 and in the interest rate sensitivity projections as shown in the Market Risk section of this report. 

Fourth Quarter 2016 Net Interest Revenue

Tax-equivalent net interest revenue totaled $198.6 million for the fourth quarter of 2016, an increase of $14.1 million over the 
fourth quarter of 2015. Net interest margin was 2.69% for the fourth quarter of 2016 compared to 2.64% for the fourth quarter 
of 2015. Net interest revenue increased $14.2 million primarily due to the growth in average loan balances and increased 
trading securities balances. 

The tax-equivalent yield on earning assets was 2.98% for the fourth quarter of 2016, up 12 basis points over the fourth quarter 
of 2015. Loan yields increased 12 basis points to 3.67% due primarily to growth in variable rate loans and an increase in short-
term interest rates. The yield on interest-bearing cash and cash equivalents increased 26 basis points to 0.55%. The available for 
sale securities portfolio yield decreased 4 basis points to 2.00%. Funding costs were up 10 basis points from the fourth quarter 
of 2015. The cost of interest-bearing deposits was unchanged compared to the fourth quarter of 2015. The cost of other 
borrowed funds increased 22 basis points, primarily due to the increase in the federal funds rate by the Federal Reserve. The 
cost of subordinated debt was up 438 basis points as lower variable rate debt outstanding in the fourth quarter of 2015 was 
replaced with higher fixed rate debt. The benefit to net interest margin from earning assets funded by non-interest bearing 
liabilities was 15 basis points in the fourth quarter of 2016, compared to 12 basis points in the fourth quarter of 2015.

Average earning assets for the fourth quarter of 2016 increased $1.1 billion over the fourth quarter of 2015, including $244 
million related to the acquisition of Mobank. Average loans, net of allowance for loan losses, increased $1.1 billion due 
primarily to growth in commercial and commercial real estate loan balances and included $162 million related to the Mobank 
acquisition. Growth in the average balance of the trading securities portfolio was offset by decreased available for sale 
securities and fair value option securities held as an economic hedge of mortgage servicing rights. 

Average deposits increased $998 million over the fourth quarter of 2015, including $206 million related to the Mobank 
acquisition. Average demand deposit balances increased $812 million and average interest-bearing transaction accounts 
increased $453 million. Average time deposits decreased $306 million. Average borrowed funds increased $1.0 billion over the 
fourth quarter of 2015, primarily due to increased Federal Home Loan Bank borrowings. The average subordinated debt 
balance decreased $82 million as the size of the borrowing was reduced when it was refinanced during 2016. 

2015 Net Interest Revenue

Tax-equivalent net interest revenue for 2015 was $715.8 million, up from $676.1 million for 2014. Net interest margin was 
2.60% for 2015 compared to 2.68% for 2014. The $39.7 million increase in net interest margin was due primarily to growth in 
earning assets, partially offset by a narrowing loan yields during the year. The yield on the available for sale securities portfolio 
increased and funding costs were lower compared to 2014.

The tax-equivalent yield on average earning assets decreased 11 basis points from 2014. Loan yields decreased 23 basis points 
primarily due to market pricing pressure and lower interest rates for the majority of 2015. The available for sale securities 
portfolio yield increased 4 basis points. Yields on restricted equity securities, fair value option securities and interest-bearing 
cash and cash equivalents all improved over 2014. The cost of interest-bearing liabilities decreased 6 basis points. The cost of 
interest-bearing deposits was down 6 basis points and the cost of other borrowed funds increased 5 basis points largely due to 
the mix of funding sources. The cost of subordinated debentures decreased 66 basis points as $122 million of fixed-rate 
subordinated debt matured on June 1, 2015. The cost of this subordinated debt was 5.56%. The benefit to net interest margin 
from earning assets funded by non-interest bearing liabilities was 11 basis points for 2015, compared to 14 basis points for 
2014.

28

Average earning assets increased $2.4 billion or 9% during 2015. Average loans, net of allowance for loan losses, increased 
$1.6 billion. The average balance of interest-bearing cash and cash equivalents grew by $904 million over 2014 as borrowings 
from the Federal Home Loan Bank were deposited in the Federal Reserve to earn a spread. The average balance of the available 
for sale securities portfolio decreased $620 million. We reduced the size of our securities portfolio during 2014 and 2015 
through normal monthly runoff to better position the balance sheet for an environment of rising longer-term rates. Growth in 
average assets was funded by a $518 million increase in average deposit balances. Average demand deposit account balances 
grew by $361 million and average interest-bearing transaction account balances were up $182 million, partially offset by a $57 
million decrease in average time deposit balances. Average borrowed funds balances increased $1.7 billion over 2014. 
Borrowings from the Federal Home Loan Banks increased $3.0 billion, partially offset by decreased funds purchased, 
repurchase agreements and subordinated debt balances. 

Table 2 – Volume/Rate Analysis 
(In thousands)

Year Ended

Year Ended

December 31, 2016 / 2015

December 31, 2015 / 2014

Change Due To1

Change Due To1

Change

Volume

Yield /
Rate

Change

Volume

Yield
/Rate

Tax-equivalent interest revenue:

Interest-bearing cash and cash equivalents

$

5,146

$

(58) $

5,204

$

2,831

$

2,331

$

Trading securities

Investment securities:

Taxable securities

Tax-exempt securities

Total investment securities

Available for sale securities:

Taxable securities

Tax-exempt securities

Total available for sale securities

Fair value option securities

Restricted equity securities

Residential mortgage loans held for sale

Loans

Total tax-equivalent interest revenue

Interest expense:

Transaction deposits

Savings deposits

Time deposits

Funds purchased

Repurchase agreements

Other borrowings

Subordinated debentures

Total interest expense

Tax-equivalent net interest revenue

Change in tax-equivalent adjustment

6,158

4,318

1,840

535

625

(664)

1,596

932

690

12

702

(2,541)

3,706

(944)

54,274

67,433

5,085

3

(528)

(961)

(1,489)

(2,617)

(655)

(3,272)

(1,290)

5,490

(416)

46,549

49,832

(16)

39

(8,764)

(4,139)

121

(34)

21,045

959

18,415

49,018

5,144

13

(52)

8,239

(1,445)

2,639

47,193

(136)

2,557

2,421

3,307

667

3,974

(1,251)

(1,784)

(528)

7,725

17,601

5,101

(36)

(4,625)

108

18

12,806

2,404

15,776

1,825

(251)

(814)

(1,065)

172

(579)

(407)

(10,341)

(13,401)

20

(417)

(10,321)

(13,818)

5,653

6,492

3,459

28,510

36,094

(936)

(18)

(5,559)

(276)

(301)

7,109

(3,590)

(3,571)

39,665

1,505

5,025

5,659

4,540

61,236

65,191

110

45

(839)

(336)

(106)

7,744

(1,537)

5,081

60,110

500

(90)

(423)

(235)

(658)

3,060

437

3,497

628

833

(1,081)

(32,726)

(29,097)

(1,046)

(63)

(4,720)

60

(195)

(635)

(2,053)

(8,652)

(20,445)

Net interest revenue
1 Changes attributable to both volume and yield/rate are allocated to both volume and yield/rate on an equal basis.

43,874

38,160

$

$

29

 
 
 
 
 
 
 
 
 
Table 2 – Volume/Rate Analysis (continued)
(In thousands)

Tax-equivalent interest revenue:

Interest-bearing cash and cash equivalents

Trading securities

Investment securities:

Taxable securities

Tax-exempt securities

Total investment securities

Available for sale securities:

Taxable securities

Tax-exempt securities

Total available for sale securities

Fair value option securities

Restricted equity securities

Residential mortgage loans held for sale

Loans

Total tax-equivalent interest revenue

Interest expense:

Transaction deposits

Savings deposits

Time deposits

Funds purchased

Repurchase agreements

Other borrowings

Subordinated debentures

Total interest expense

Tax-equivalent net interest revenue

Change in tax-equivalent adjustment

Three Months Ended

December 31, 2016 / 2015

Change Due To1

Change

Volume

Yield /
Rate

$

1,334

$

28

$

3,714

2,957

(120)

441

321

(1,167)

(38)

(1,205)

(1,920)

649

(133)

17,362

20,122

1,814

2

(1,741)

23

(34)

4,595

1,359

6,018

14,104

1,167

(110)

(247)

(357)

(224)

(211)

(435)

(848)

1,054

310

11,401

14,110

120

5

(918)

(6)

(4)

1,397

(682)

(88)

14,198

1,306

757

(10)

688

678

(943)

173

(770)

(1,072)

(405)

(443)

5,961

6,012

1,694

(3)

(823)

29

(30)

3,198

2,041

6,106

(94)

Net interest revenue
1 Changes attributable to both volume and yield/rate are allocated to both volume and yield/rate on an equal basis.

12,937

$

30

 
 
 
 
 
Other Operating Revenue

Other operating revenue was $674.0 million for 2016, up $15.5 million or 2% over 2015. Fees and commissions revenue grew 
by $36.1 million or 6% over 2015. The change in the fair value of mortgage servicing rights, net of economic hedges, 
decreased other operating revenue by $28.4 million in 2016 and $7.9 million in 2015. 

Table 3 – Other Operating Revenue 
(In thousands)

Brokerage and trading revenue

Transaction card revenue

Fiduciary and asset management revenue

Deposit service charges and fees

Mortgage banking revenue

Other revenue

Total fees and commissions revenue

Other gains, net

Gain (loss) on derivatives, net

Gain (loss) on fair value option securities, net

Change in fair value of mortgage servicing rights

Gain on available for sale securities, net

Total other-than-temporary impairment

Portion of loss recognized in (reclassified from) other

comprehensive income

Net impairment losses recognized in earnings

Year Ended December 31,

2016

2015

2014

2013

2012

$

138,377

$

129,556

$

134,437

$

125,478

$

126,930

116,823

107,985

135,758

135,477

92,193

133,914

51,029

686,748

4,030

(15,685)

(10,555)

(2,193)

11,675

—

—

—

128,621

126,153

90,431

126,002

49,883

650,646

5,702

430

(3,684)

(4,853)

12,058

(2,443)

624

(1,819)

123,689

115,652

90,911

109,093

47,537

621,319

2,953

2,776

96,082

95,110

121,934

48,417

603,844

4,875

(4,367)

10,189

(15,212)

(16,445)

1,539

(373)

—

(373)

22,720

10,720

(2,574)

266

(2,308)

80,053

98,917

169,302

45,693

628,880

2,397

(301)

9,230

(9,210)

33,845

(1,144)

(6,207)

(7,351)

Total other operating revenue

$

674,020

$

658,480

$

621,958

$

620,272

$

657,490

Fees and commissions revenue

Diversified sources of fees and commissions revenue are a significant part of our business strategy and represented 48% of total 
revenue for 2016, excluding provision for credit losses and gains and losses on asset sales, securities and derivatives and the 
change in the fair value of mortgage servicing rights. We believe that a variety of fee revenue sources provide an offset to 
changes in interest rates, values in the equity markets, commodity prices and consumer spending, all of which can be 
volatile. As an example of this strength, many of the economic factors that cause net interest revenue compression such as 
falling interest rates may also drive growth in our mortgage banking revenue. We expect growth in other operating revenue to 
come through offering new products and services and by further development of our presence in other markets. However, 
current and future economic conditions, regulatory constraints, increased competition and saturation in our existing markets 
could affect the rate of future increases.

Brokerage and trading revenue, which includes revenues from trading, customer hedging, retail brokerage and investment 
banking, increased $8.8 million or 7% over the prior year. 

Trading revenue includes net realized and unrealized gains primarily related to sales of U.S. government securities, residential 
mortgage-backed securities guaranteed by U.S. government agencies and municipal securities to institutional customers and 
related derivative instruments. Trading revenue totaled $43.0 million for 2016, compared to $44.7 million for 2015. Trading 
revenue was negatively impacted by an unexpected 85 basis point increase in the 10-year U.S. Treasury rate primarily due to 
the market's reaction to the outcome of the presidential election. This increase in interest rates decreased the fair value of our 
trading securities portfolio by approximately $5.0 million. Excluding this estimated impact, trading revenue was up $3.3 
million or 7% over the prior year. 

31

 
 
The Company added a new group trading in U.S. government agency residential mortgage-backed securities and related to-be-
announced derivatives in the third quarter of 2016. This new trading group added $6.6 million of net interest revenue and $2.3 
million of trading revenue in the latter half of 2016, excluding the impact of the unexpected increase in long-term interest rates. 
This new group also increased our trading securities portfolio by $300 million and receivables for unsettled trades by $405 
million at December 31, 2016. 

Customer hedging revenue is based primarily on realized and unrealized changes in the fair value of derivative contracts held 
for customer risk management programs. As more fully discussed under Customer Derivative Programs in Note 3 of the 
Consolidated Financial Statements, we offer commodity, interest rate, foreign exchange and equity derivatives to our 
customers. Derivative contracts executed with customers are offset with contracts between selected counterparties and 
exchanges to minimize market risk from changes in commodity prices, interest rates or foreign exchange rates. Customer 
hedging revenue totaled $47.2 million for 2016, an increase of $6.3 million or 15% over 2015. The volume of derivative 
contracts sold to our mortgage banking customers used to hedge their pipelines of mortgage loan originations increased as 
average mortgage rates trended down during 2016. Volumes of derivative contracts sold to energy customers increased as 
energy prices stabilized during 2016 and volumes of interest rate contracts increased in anticipation of rising interest rates. 

Revenue earned from retail brokerage transactions totaled $26.0 million for 2016, an increase of $1.5 million or 6% over the 
the prior year. Retail brokerage revenue is primarily based on fees and commissions earned on sales of fixed income securities, 
annuities, mutual funds and other financial instruments to retail customers. Revenue is primarily based on the volume of 
customer transactions and applicable commission rate for each type of product. The increase in revenue due to transaction 
volume growth was partially offset by a change in product mix to products that pay a lower commission rate. In addition, 
volume shifted from sales of products that pay us a one-time transaction fee to accounts that pay us an on-going management 
fee.

Investment banking, which includes fees earned upon completion of underwriting, financial advisory services and loan 
syndication fees totaled $22.2 million for 2016, an increase of $2.7 million or 14% over 2015, related to the timing and volume 
of completed transactions. 

Transaction card revenue depends largely on the volume and amount of transactions processed, the number of TransFund 
automated teller machine (“ATM”) locations and the number of merchants served. Transaction card revenue totaled $135.8 
million for 2016, a $7.1 million or 6% increase over 2015. Revenues from the processing of transactions on behalf of the 
members of our TransFund electronic funds transfer ("EFT") network totaled $70.6 million, up $5.4 million or 8% over 2015, 
due primarily to increased transaction volumes. The number of TransFund ATM locations totaled 2,021 at December 31, 2016 
compared to 1,972 at December 31, 2015. Merchant services fees paid by customers for account management and electronic 
processing of card transactions totaled $45.9 million, an increase of $1.5 million or 3% over the prior year. The increase was 
primarily due to higher transaction processing volume throughout our geographical footprint. Revenue from interchange fees 
paid by merchants for transactions processed from debit cards issued by the Company totaled $19.3 million, an increase of 
$265 thousand or 1% over 2015 due to increased transaction volume.

Fiduciary and asset management revenue grew $9.3 million or 7% over 2015, primarily due to decreased fee waivers and 
growth in assets under management. We earn fees as administrator to and investment adviser for the Cavanal Hill Funds, a 
diversified, open-ended investment company established as a business trust under the Investment Company Act of 1940 (the 
"1940 Act"). BOKF, NA is custodian and BOK Financial Securities, Inc. is distributor for the Cavanal Hill Funds. Products of 
the Cavanal Hill Funds are offered to customers, employee benefit plans, trusts and the general public in the ordinary course of 
business. We have voluntarily waived administration fees on the Cavanal Hill money market funds in order to maintain positive 
yields on these funds in the current low short-term interest rate environment. Waived fees totaled $6.8 million for 2016 
compared to $12.5 million for 2015. The decrease in fee waivers was primarily related to increased interest rates as a result of 
the Federal Reserve's federal funds rate increase in the fourth quarter of 2015. The remaining increase in fiduciary and asset 
management revenue was largely due to growth in assets under management from the acquisition of Weaver and Tidwell 
Financial Advisors LTD dba Weaver Wealth Management, a registered investment advisor, in the first quarter of 2016.

The fair value of fiduciary assets administered by the Company totaled $41.8 billion at December 31, 2016 and $38.3 billion at 
December 31, 2015. Fiduciary assets are assets for which the Company possesses investment discretion on behalf of another, or 
any other similar capacity. 

Deposit service charges and fees increased $1.8 million or 2% over 2015. Commercial account service charge revenue totaled 
$44.9 million, an increase of $2.9 million or 7% over the prior year. Overdraft fees totaled $40.5 million for 2016, a decrease of 
$774 thousand or 2% compared to last year. Service charges on deposit accounts with a standard monthly fee were $6.7 
million, a decrease of $334 thousand or 5% compared to the prior year.  

32

Mortgage banking revenue totaled $133.9 million for 2016, a $7.9 million or 6% increase over 2015. 

Mortgage production revenue totaled $69.6 million, largely unchanged compared to the prior year. A $512 million or 8% 
decrease in mortgage loan production volume from the record level achieved in 2015 was largely offset by improved gain on 
sale margins. The decrease in mortgage loan production volume was due primarily to a strategic decision to exit the 
corresponding lending channel during the third quarter of 2016 based on careful consideration of continued pressure on margin 
due to the competitive landscape and regulatory costs. 

Gain on sale margins increased 9 basis points compared to the previous year. The margin increase was primarily due to exiting 
the correspondent lending channel, the lowest margin of our three sales channels.  

Mortgage servicing revenue was $64.3 million, a $7.9 million or 14% increase over the prior year. The outstanding principal 
balance of mortgage loans serviced for others totaled $22.0 billion at December 31, 2016, a $2.3 billion increase over 
December 31, 2015.

Table 4 – Mortgage Banking Revenue 
(In thousands)

Mortgage production revenue

$

69,628

$

69,587

$

61,061

$

79,545

$

129,117

2016

2015

2014

2013

2012

Year Ended December 31,

Mortgage loans funded for sale

$ 6,117,417

$ 6,372,956

$ 4,484,394

$ 4,081,390

$ 3,708,350

Add: Current year end outstanding commitments

Less: Prior year end outstanding commitments

318,359

601,147

601,147

627,505

627,505

258,873

258,873

356,634

356,634

189,770

Total mortgage production volume

5,834,629

6,346,598

4,853,026

3,983,629

3,875,214

Gain on sale margin

Primary mortgage interest rates:

Average

Period end

1.19%

1.10%

1.26%

2.00%

3.33%

3.83%

4.32%

3.89%

3.96%

4.17%

3.83%

3.99%

4.48%

3.66%

3.35%

Mortgage servicing revenue

$

64,286

$

56,415

$

48,032

$

42,389

$

40,185

Average outstanding principal balance of mortgage

loans serviced for others

20,837,897

17,920,557

14,940,915

12,850,283

11,641,305

Average mortgage servicing fee rates

0.31%

0.31%

0.32%

0.33%

0.35%

Primary rates disclosed in Table 4 above represent rates generally available to borrowers on 30 year conforming mortgage 
loans. 

Net gains on securities, derivatives and other assets

We recognized $11.7 million of net gains from sales of $0.9 billion of available for sale securities in 2016. We recognized $12.1 
million of net gains from sales of $1.6 billion of available for sale securities in 2015. Securities were sold either because they 
had reached their expected maximum potential or to move into securities that are expected to perform better in the current rate 
environment.

As discussed in the Market Risk section of this report, the fair value of our portfolio of mortgage servicing rights ("MSRs")
changes in response to changes in primary mortgage loan rates and other assumptions. We attempt to mitigate the earnings 
volatility caused by changes in the fair value of MSRs within Board-approved limits by designating certain financial 
instruments as an economic hedge. Changes in the fair value of these instruments generally are expected to partially offset 
changes in the fair value of the MSRs. 

33

 
 
Since mid-year 2016, the economic hedge was largely positioned to offset the impact of a 50 basis point decrease in primary 
mortgage interest rates and related interest rates, including 10-year U.S. Treasury rates. During the fourth quarter, the 10-year 
U.S. Treasury interest rate increased 85 basis points primarily due to the market's reaction to the outcome of the U.S. 
presidential election. This unexpected increase in rates resulted in a $39.8 million increase in the fair value of our MSRs, offset 
by a $56.8 million loss on our economic hedges. 

Table 5 – Gain (Loss) on Mortgage Servicing Rights, Net of Economic Hedge 
(In thousands)

Year Ended December 31,

2016

2015

2014

2013

2012

Gain (loss) on mortgage hedge derivative contracts, net

$ (15,696) $

634

$

2,776

$

(5,080) $

Gain (loss) on fair value option securities, net

Gain (loss) on economic hedge of mortgage servicing rights

Gain (loss) on change in fair value of mortgage servicing rights

Gain (loss) on changes in fair value of mortgage servicing rights, net of

economic hedges included in other operating revenue

Net interest revenue on fair value option securities1
Total economic benefit (cost) of changes in the fair value of mortgage

servicing rights, net of economic hedges

(10,555)

(26,251)

(2,193)

(28,444)

4,356

(3,684)

(3,050)

(4,853)

(7,903)

8,001

116

7,793

7,909

10,003

12,779

(15,436)

(20,516)

(16,445)

22,720

(9,210)

(3,666)

3,253

2,204

3,290

(1,301)

7,811

$ (24,088) $

98

$

(413) $

5,494

$

6,510

1  Actual interest earned on fair value option securities less internal transfer-priced cost of funds.

Net gains on other assets totaled $4.0 million for 2016. The Company recognized $2.0 million related to the mutual termination 
of a rent guarantee between the Company and the City of Tulsa for office space in a building immediately adjacent to the 
Company's main office rented by third party tenants. The Company also recognized a $2.1 million gain on the sale of a 
merchant banking investment during the year. Net gains on other assets totaled $5.7 million for 2015. The Company recognized 
a $1.7 million gain on the sale of bank premises and a $2.8 million gain on underlying investments held by two consolidated 
private equity funds. Private equity gains are largely attributed to non-controlling interests. 

Fourth Quarter 2016 Other Operating Revenue

Other operating revenue was $143.8 million for the fourth quarter of 2016, a decrease of $15.2 million compared to the fourth 
quarter of 2015. The fourth quarter of 2016 included a $5.0 million decrease in the net fair value of trading portfolio positions 
and a $17.0 million decrease in the fair value of mortgage servicing rights, net of economic hedges. The change in the fair 
value of mortgage servicing rights, net of economic hedges, increased other operating revenue $2.6 million for the fourth 
quarter of 2015. 

Fees and commissions revenue was up $8.3 million over the fourth quarter of 2015. Excluding the estimated impact of the 
unexpected increase in long-term interest rates, brokerage and trading revenue increased $3.2 million. Trading revenue totaled 
$5.7 million for the fourth quarter of 2016, a $996 thousand decrease. Customer hedging revenue totaled $11.1 million, an 
increase of $1.4 million. Revenue earned from retail brokerage transactions was $5.9 million, largely unchanged compared to 
the fourth quarter of 2015. Investment banking revenue totaled $5.8 million, a $2.7 million increase over the fourth quarter of 
2015 related to the timing and volume of completed transactions. 

Transaction card revenue was $34.5 million for the fourth quarter of 2016, a $2.2 million or 7% increase over the fourth quarter 
of 2015, primarily due to a $1.6 million increase in revenues from the processing of transactions on behalf of members of our 
TransFund EFT network. Revenues from the processing of transactions on behalf of the members of our TransFund EFT 
network totaled $18.1 millionand merchant services fees totaled $11.6 million. Interchange fees paid by merchants for 
transactions processed from debit cards issued by the Company totaled $4.8 million.

Fiduciary and asset management revenue increased $3.4 million over the fourth quarter of 2015 to $34.5 million primarily due 
to a decrease in waived administrative fees and growth in assets under management, including the addition of assets from the 
Weaver Wealth Management acquisition in the first quarter of 2016. Waived administration fees on the Cavanal Hill money 
market funds totaled $1.4 million for the fourth quarter of 2016, compared to $3.5 million for the fourth quarter of 2015.

34

 
 
Deposit service charges and fees were $23.4 million for the fourth quarter of 2016, up $552 thousand over the fourth quarter of 
2015. Overdraft fees totaled $10.4 million, largely unchanged compared to the fourth quarter of 2015. Commercial account 
service charge revenue totaled $11.2 million, an increase of $794 thousand. Service charges on deposit accounts with a standard 
monthly fee were $1.7 million, also largely unchanged compared to the fourth quarter of 2015. 

Mortgage banking revenue was $28.4 million for the fourth quarter of 2016, up $5.5 million over the fourth quarter of 2015. 
The Company's exit of the correspondent lending channel in the third quarter of 2016 improved gain on sale margins, partially 
offset by a decrease in mortgage loan loan production volume. Mortgage loan production volumes were $878 million for the 
fourth quarter of 2016 compared to $1.2 billion in the fourth quarter of 2015. Mortgage loan refinances, which have higher 
gains on sale margins, represented 63% of total loans funded during the fourth quarter of 2016, compared to 41% in the fourth 
quarter of 2015. 

2015 Other Operating Revenue

Other operating revenue totaled $658.5 million for 2015, up $36.5 million or 6% over 2014. Fees and commissions revenue 
increased $29.3 million. The change in the fair value of mortgage servicing rights, net of economic hedges, decreased operating 
revenue in 2015 by $7.9 million and decreased operating revenue $3.7 million in 2014. Net gains on sales of available for sale 
securities were $12.1 million for 2015 compared to $1.5 million for 2014. Other-than-temporary impairment charges 
recognized in earnings were $1.4 million more than charges recognized in 2014. 

Brokerage and trading revenue for 2015 decreased $4.9 million compared to 2014. Decreased retail brokerage fees and lower 
investment banking revenue were partially offset by increased trading revenue and customer hedging revenue. Transaction card 
revenue grew by $4.9 million over 2014 primarily due to growth in merchant services and TransFund EFT transaction volumes. 
Fiduciary and asset management fees increased $10.5 million related to a full year of revenue from the GTRUST Financial 
Corporation and MBM Advisors acquisitions in 2014 which added $4.0 million of revenue. The remaining increase was 
primarily due to growth in the fair value of fiduciary assets. Deposit service charges and fees decreased $480 thousand. 
Increased commercial account service charges were offset by lower overdraft fees and service charges on deposit accounts with 
a standard monthly fee. Mortgage banking revenue grew by $16.9 million over 2014. A record $6.3 billion of mortgage loans 
were produced in 2015 due to the expansion of our correspondent and HomeDirect online mortgage channel and a decrease in 
average primary mortgage interest rates. The correspondent and HomeDirect online lending channels have lower margins than 
the retail lending channel. 

Net gains on other assets totaled $5.7 million for 2015. We recognized a $1.7 gain on the sale of bank premises and a $2.8 
million gain on underlying investments held by two consolidated private equity funds. Private equity gains are largely 
attributed to non-controlling interests. 

35

Other Operating Expense

Other operating expense for 2016 totaled $1.0 billion, a $121.4 million or 14% increase over the prior year. Personnel expense 
increased $37.8 million or 7%. Non-personnel expenses increased $83.6 million or 22% over the prior year. Other operating 
expense for 2016 included $9.1 million of litigation and settlement expenses as discussed further in Note 14 to the consolidated 
financial statements, $7.5 million of integration costs related to the Mobank acquisition and $5.0 million of severance costs 
related to the previously announced reduction of workforce to better align expenses with expected revenue growth. These items 
have been excluded from the discussion following.

Table 6 – Other Operating Expense 
(In thousands)

Regular compensation

Incentive compensation:

Cash-based compensation

Share-based compensation

Deferred compensation

Total incentive compensation

Employee benefits

Total personnel expense

Business promotion

Charitable contributions to BOKF Foundation

Professional fees and services

Net occupancy and equipment

Insurance

Data processing & communications

Printing, postage and supplies

Net losses & operating expenses of repossessed assets

Amortization of intangible assets

Mortgage banking costs

Other expense

Total other operating expense

Year Ended December 31,

2016

2015

2014

2013

2012

$

332,740

$

313,403

$

298,420

$

279,493

$

262,736

128,077

10,464

1,687

140,228

80,151

553,119

26,582

2,000

56,783

80,024

32,489

131,841

15,584

3,359

6,862

61,387

47,560

114,305

12,358

111,748

10,875

361

(13,692)

127,024

74,871

515,298

27,851

796

40,123

76,016

20,375

122,383

13,498

1,446

4,359

38,813

35,233

108,931

69,580

476,931

26,649

4,267

44,440

77,232

18,578

115,225

13,518

6,019

3,965

31,705

28,993

110,871

116,718

8,189

32,083

151,143

74,589

505,225

22,598

2,062

32,552

69,773

16,122

105,967

13,885

5,160

3,428

31,196

32,652

9,668

27,502

153,888

74,409

491,033

23,338

2,062

34,015

66,726

15,356

98,904

14,228

20,528

2,927

44,334

26,912

$ 1,017,590

$

896,191

$

847,522

$

840,620

$

840,363

Average number of employees (full-time equivalent)

4,872

4,797

4,679

4,683

4,614

Personnel expense

Regular compensation expense, which consists of salaries and wages, overtime pay and temporary personnel costs, increased 
$12.8 million or 4% over 2015. The average number of employees grew by 2% over the prior year. Recent additions have been 
in mortgage, wealth management and technology. In addition, standard annual merit increases in regular compensation were 
effective for the majority of our staff March 1. 

Incentive compensation increased $13.2 million or 10% over 2015. Cash-based incentive compensation plans are either 
intended to provide current rewards to employees who generate long-term business opportunities for the Company based on 
growth in loans, deposits, customer relationships and other measurable metrics or intended to compensate employees with 
commissions on completed transactions. Total cash-based incentive compensation increased $13.8 million or 12% over 2015. 
As discussed further in Management's Discussion and Analysis – Lines of Business following, growth in incentive 
compensation expense was primarily related to revenue growth in the Wealth Management segment during the year.

Share-based compensation expense represents expense for equity awards based on the grant-date fair value. Share-based 
compensation expense for equity awards decreased $1.9 million or 15% over 2015 primarily due to the decrease in the vesting 
probability of certain performance-based share awards. 

36

 
The Company currently offers a deferred compensation plan for certain executive and senior officers. Deferred compensation 
expense totaled $1.7 million for 2016, a $1.3 million increase over the prior year. Deferred compensation expense is largely 
offset by changes in the fair value of assets held in rabbi trusts for the benefit of participants included other income in the 
consolidated statements of earnings.

Employee benefit expense increased $5.3 million or 7% compared to 2015 primarily due to increased employee medical costs. 
The Company self-insures a portion of its employee health care coverage, up to a stop-loss of $750 thousand per employee, and 
these costs may be volatile. 

Non-personnel operating expense

Non-personnel expense increased $68.5 million or 18% over the prior year. 

Mortgage banking expense increased $22.6 million or 58%. Mortgage banking expense increased $12.7 million due to the 
effect of actual residential mortgage loan prepayments on the fair value of mortgage servicing rights. As mortgage interest rates 
fall, actual prepayments increase due to borrowers refinancing loans. As mortgage interest rates increase, actual prepayment 
speeds slow. Mortgage banking expenses also increased $8.1 million over the prior year primarily due to default servicing and 
loss mitigation costs related to loans serviced for others. 

Insurance expense was up $12.1 million or 59%, primarily due to higher deposit insurance expense related to increased 
criticized and classified asset levels, an input to the deposit insurance assessment, overall growth in bank assets and a new 
surcharge for banks with more than $10 billion in assets, that was effective in the third quarter of 2016. Criticized and classified 
asset levels were elevated during the year primarily due to credit migration of energy loans as a result of low energy prices. 

Professional fees and services expense increased $10.9 million or 27%, data processing and communications expense increased 
$9.5 million or 8% and premises and equipment expense increased $4.0 million or 5%. These increases were primarily related 
to continued upgrades of our information technology infrastructure and cybersecurity. 

All other non-personnel operating expenses were up $9.6 million, net. 

Fourth Quarter 2016 Operating Expenses

Other operating expense for the fourth quarter of 2016 totaled $265.5 million. Excluding the impact of $5.0 million of 
severance and other expenses related to the workforce reductions and $4.7 million of integration costs related to the Mobank 
acquisition in the fourth quarter of 2016, other operating expense increased $25.4 million over the fourth quarter of 2015. 

Excluding the impact of the workforce reduction and Mobank integration costs, personnel expense increased $3.5 million over 
the fourth quarter of 2015. Regular compensation expense increased $1.1 million over the fourth quarter of 2015. Incentive 
compensation increased $2.8 million over the fourth quarter of 2015. Cash-based compensation was up $4.5 million, partially 
offset by a $1.4 million decrease in share-based compensation expense. 

Excluding the impact of Mobank integration costs, non-personnel expense was up $21.9 million over the fourth quarter of 
2015. Mortgage banking costs were up $5.9 million primarily due to the effect of actual residential mortgage loan prepayments 
on the fair value of mortgage servicing rights. Insurance expense increased $3.3 million primarily due to a new surcharge for 
banks over $10 billion effective in the third quarter of 2016. Professional fees and services expense increased $3.1 million and 
data processing and communications costs were up $2.4 million, primarily related to information technology infrastructure and 
cybersecurity project costs. Occupancy and equipment expense increased $2.1 million primarily due to property lease 
termination costs and software costs. We also made a $2.0 million cash contribution to the BOKF Foundation during the fourth 
quarter of 2016. All other expense categories were up $3.1 on a net basis. 

37

2015 Operating Expenses

Other operating expense totaled $896.2 million for 2015, a $48.7 million or 6% increase over 2014. 

Personnel expense for 2014 included a $12.6 million net reduction in the accrual for amounts payable to certain executive 
officers under the 2011 True-Up Plan. Approved by shareholders on April 26, 2011, the True-Up Plan was designed to adjust 
annual and long-term performance-based incentive compensation for certain senior executives for 2006 through 2013. The 
2011 True-Up Plan ended on December 31, 2013 and amounts accrued were paid in May 2014. Excluding the impact of the 
2011 True-Up Plan adjustment, personnel expense increased $25.7 million or 5%. Regular compensation expense totaled 
$313.4 million, up $15.0 million primarily due to the investment in higher-costing wealth management, compliance and risk 
management positions. Regular compensation expense for 2014 also included $800 thousand related to retail branch closure 
costs. Excluding the impact of the 2011 True-Up plan adjustment in 2014, incentive compensation expense increased $5.5 
million, primarily due to cash-based incentive compensation. Employee benefit expense increased $5.3 million primarily due to 
employee medical costs. 

Non-personnel expense for 2015 was $10.3 million or 3% higher than 2014. Mortgage banking expense increased $7.1 million 
primarily due to changes in the fair value of mortgage servicing rights related to actual mortgage loan prepayments. Data 
processing and communications expense increased $7.2 million primarily related to increased transaction activity costs and 
completion of risk management and compliance projects. Professional fees and services expense decreased $4.3 million after 
risk management and regulatory compliance costs stabilized after growing in 2014. Net losses and operating expenses of 
repossessed assets decreased $4.6 million. All other non-personnel operating expenses were up $4.9 million, net.

Income Taxes

Income tax expense was $106.4 million or 31.4% of net income before taxes for 2016, $139.4 million or 32.3% of net income 
before taxes for 2015 and $144.2 million or 32.8% of net income before taxes for 2014. Tax expense currently payable totaled 
$118 million in 2016, $130 million in 2015 and $105 million in 2014. 

The statute of limitations expired on uncertain tax positions during 2014, 2015, and 2016. Excluding the statute expiration, 
income tax expense would have been $108.3 million or 32.0% of net income before taxes for 2016, $140.9 million or 32.6% of 
net income before taxes for 2015 and $145.8 million or 33.2% of net income before taxes for 2014.

Net deferred tax assets totaled $29.3 million at December 31, 2016 compared to a net deferred tax liability of $1.4 million at 
December 31, 2015. We have evaluated the recoverability of our deferred tax assets based on taxes previously paid in net loss 
carry-back periods and other factors and determined that no valuation allowance was required in 2016 and 2015.

Unrecognized tax benefits totaled $15.8 million at December 31, 2016 compared to $13.2 million at December 31, 2015. BOK 
Financial operates in numerous jurisdictions, which requires judgment regarding the allocation of income, expense, and 
earnings under various laws and regulations of each of these taxing jurisdictions. Each jurisdiction may audit our tax returns 
and may take different positions with respect to these allocations. 

Income tax expense was $22.5 million or 31.1% of net income before taxes for the fourth quarter of 2016 compared to $26.2 
million or 30.1% of net income before taxes for the fourth quarter of 2015. Income tax expense as a percentage of net income 
before taxes was higher in the fourth quarter of 2016 primarily due to an increase in unrecognized tax benefits related to an 
income allocation change between taxing jurisdictions. 

38

Table 7 – Selected Quarterly Financial Data (Unaudited) 
(In thousands, except per share data) 

Interest revenue

Interest expense

Net interest revenue

Provision for credit losses

Net interest revenue after provision for credit losses

Fees and commissions revenue

Gain (loss) on financial instruments and other assets, net

Change in fair value of mortgage servicing rights

Other-than-temporary impairment losses

2016

First

Second

Third

Fourth

$

201,796

$

202,267

$

209,317

$

215,737

19,224

182,572

35,000

147,572

163,297

22,105

19,655

182,612

20,000

162,612

180,147

21,678

(27,988)

(16,283)

—

—

21,471

187,846

10,000

177,846

181,276

3,707

2,327

—

21,539

194,198

—

194,198

162,028

(58,025)

39,751

—

Other operating revenue

157,414

185,542

187,310

143,754

Personnel expense

Other non-personnel expense

Total other operating expense

Net income before taxes

Federal and state income taxes

Net income

Net income (loss) attributable to non-controlling interests

133,562

109,008

242,570

62,416

21,428

40,988

(1,576)

139,213

112,172

251,385

96,769

30,497

66,272

471

139,212

118,876

258,088

107,068

31,956

75,112

835

141,132

124,415

265,547

72,405

22,496

49,909

(117)

Net income attributable to shareholders of BOK Financial Corp. shareholders $

42,564

$

65,801

$

74,277

$

50,026

Earnings per share:

Basic

Diluted

Average shares:

Basic

Diluted

$

$

0.64

0.64

$

$

1.00

1.00

$

$

1.13

1.13

$

$

0.76

0.76

65,297

65,331

65,246

65,303

65,085

65,158

64,719

64,788

39

 
Table 7 – Selected Quarterly Financial Data (Unaudited) (continued)
(In thousands, except per share data)

Interest revenue

Interest expense

Net interest revenue

Provision for credit losses

Net interest revenue after provision for credit losses

Fees and commissions revenue

Gain (loss) on financial instruments and other assets, net

Change in fair value of mortgage servicing rights

Other-than-temporary impairment losses

2015

First

Second

Third

Fourth

$

184,569

$

191,813

$

193,664

$

196,782

16,843

167,726

—

167,726

16,082

175,731

4,000

171,731

163,696

170,295

8,640

(8,522)

(92)

(4,272)

8,010

—

15,028

178,636

7,500

171,136

162,963

10,536

(11,757)

—

15,521

181,261

22,500

158,761

153,692

(398)

7,416

(1,727)

Other operating revenue

163,722

174,033

161,742

158,983

Personnel expense

Other non-personnel expense

Total other operating expense

Net income before taxes

Federal and state income taxes

Net income

Net income attributable to non-controlling interests

126,303

91,667

217,970

113,478

38,384

75,094

251

$

Net income attributable to shareholders of BOK Financial Corp. shareholders $

74,843

130,493

94,368

224,861

120,903

40,630

127,399

95,535

222,934

109,944

34,128

80,273

$

75,816

$

1,043

79,230

925

74,891

131,104

99,322

230,426

87,318

26,242

61,076

1,475

59,601

1.15

1.15

$

$

1.09

1.09

$

$

0.89

0.89

$

$

$

$

$

$

1.08

1.08

Earnings per share:

Basic

Diluted

Average shares:

Basic

Diluted

68,255

68,345

68,096

68,210

67,668

67,762

66,378

66,468

40

 
Lines of Business

We operate three principal lines of business: Commercial Banking, Consumer Banking and Wealth Management. Commercial 
Banking includes lending, treasury and cash management services and customer risk management products for small 
businesses, middle market and larger commercial customers. Commercial banking also includes the TransFund EFT 
network. Consumer Banking includes retail lending and deposit services, lending and deposit services to small businesses 
served through our consumer branch network and all mortgage banking activities. Wealth Management provides fiduciary 
services, private bank services and investment advisory services in all markets. Wealth Management also underwrites state and 
municipal securities and engages in brokerage and trading activities.

In addition to our lines of business, we have a Funds Management unit. The primary purpose of this unit is to manage our 
overall liquidity needs and interest rate risk. Each line of business borrows funds from and provides funds to the Funds 
Management unit as needed to support their operations. Operating results for Funds Management and other include the effect of 
interest rate risk positions and risk management activities, securities gains and losses including impairment charges, the 
provision for credit losses in excess of net loans charged off, tax planning strategies and certain executive compensation costs 
that are not attributed to the lines of business. The Funds Management unit also initially recognizes accruals for loss 
contingencies when losses become probable. Actual losses are recognized by the lines of business if the accruals are settled. 

We allocate resources and evaluate the performance of our lines of business using the net direct contribution which includes the 
allocation of funds, actual net credit losses and capital costs. In addition, we measure the performance of our business lines 
after allocations of certain direct expenses and taxes based on statutory rates. 

The cost of funds borrowed from the Funds Management unit by the operating lines of business is transfer priced at rates that 
approximate market rates for funds with similar similar interest rate and liquidity risk characteristics. Market rates are generally 
based on the applicable LIBOR or interest rate swap rates, adjusted for prepayment risk. This method of transfer-pricing funds 
that support assets of the operating lines of business tends to insulate them from interest rate risk. 

The value of funds provided by the operating lines of business to the Funds Management unit is also based on rates which 
approximate wholesale market rates for funds with similar duration and re-pricing characteristics. Market rates are generally 
based on LIBOR or interest rate swap rates. The funds credit formula applied to deposit products with indeterminate maturities 
is established based on their re-pricing characteristics reflected in a combination of the short-term LIBOR rate and a moving 
average of an intermediate term swap rate, with an appropriate spread applied to both. Shorter duration products are weighted 
towards the short term LIBOR rate and longer duration products are weighted towards the intermediate swap rates. The 
expected duration ranges from 30 days for certain rate-sensitive deposits to five years.

Economic capital is assigned to the business units by a capital allocation model that reflects management’s assessment of 
risk. This model assigns capital based upon credit, operating, interest rate and market risk inherent in our business lines and 
recognizes the diversification benefits among the units. The level of assigned economic capital is a combination of the risk 
taken by each business line, based on its actual exposures and calibrated to its own loss history where possible. Average 
invested capital includes economic capital and amounts we have invested in the lines of business.

As shown in Table 8 following, net income attributable to our lines of business decreased $9.0 million or 4% compared to the 
prior year. The decrease in net income attributed to our lines of business was due primarily to increased credit losses, litigation 
settlements, and net changes in the fair value of mortgage servicing rights. Net interest revenue increased $70.4 million mostly 
from commercial loan growth and improving yields. Fees and commission revenue increased $40.2 million from growth in 
most every revenue category. These increases were offset by increased net loans charged-off, operating expenses and the 
change in the fair value of mortgage servicing rights, net of economic hedges. Net charge-offs attributed to the lines of business 
were $37.1 million in 2016, primarily due to energy loans, compared to a net recovery of $897 thousand in 2015. Operating 
expense increased $82.7 million or 13%, including a $22.2 million increase in personnel expense and a $60.4 million increase 
in non-personnel expense. The decrease in net income provided by Funds Management was largely due lower net interest 
revenue from our securities portfolio, increased operating expense and provision for credit losses in excess of net charge-offs..

The acquisition of Mobank on December 1, 2016 was not yet allocated to the operating segments at December 31, 2016. 
Accordingly, the operation, assets and liabilities of Mobank were included in Funds Management and Other for 2016.

41

Table 8 – Net Income by Line of Business 
(In thousands)

Commercial Banking

Consumer Banking

Wealth Management

Subtotal

Funds Management and other

Total

Commercial Banking

Year Ended December 31,

2016

2015

2014

$

210,927

$

199,516

$

169,058

18

32,174

243,119

(10,451)

23,131

29,431

252,078

36,487

26,616

18,248

213,922

78,513

$

232,668

$

288,565

$

292,435

Commercial Banking contributed $210.9 million to consolidated net income in 2016, up $11.4 million or 5.7% over the prior 
year. Net interest revenue grew by $46.7 million as the balance of average commercial loans increased $1.2 billion or 10%. Net 
loans charged off were $33.0 million compared to a net recovery of $6.7 million in 2015. Fees and commission revenue 
increased $16.3 million or 9% over the prior year primarily due to growth in all revenue sources. Other operating expense 
increased $13.6 million or 7% compared to 2015. 

Table 9 – Commercial Banking 
(Dollars in thousands)

Net interest revenue from external sources

Net interest expense from internal sources

Total net interest revenue

Net loans charged off (recovered)

Net interest revenue after net loans charged off (recovered)

Fees and commissions revenue

Other gains, net

Other operating revenue

Personnel expense

Non-personnel expense

Other operating expense

Net direct contribution

Gain on financial instruments, net

Gain (loss) on repossessed assets, net

Corporate expense allocations

Income before taxes

Federal and state income taxes

Net income

Average assets

Average loans

Average deposits

Average invested capital

42

Year Ended December 31,

2016

2015

2014

$

492,967

$

439,751

$

382,331

(58,781)

434,186

32,959

401,227

193,508

2,013

195,521

112,021

104,430

216,451

(52,313)

387,438

(6,748)

394,186

177,251

478

177,729

108,661

94,143

202,804

(40,083)

342,248

(7,447)

349,695

170,362

1,028

171,390

104,845

90,861

195,706

380,297

369,111

325,379

10

669

35,760

345,216

134,289

210,927

16,998,626

13,600,221

8,430,507

1,163,965

$

$

—

708

43,279

326,540

127,024

199,516

16,284,527

12,404,064

8,773,512

1,050,758

$

$

—

(3,187)

45,502

276,690

107,632

169,058

15,394,957

10,712,559

8,886,549

946,384

$

$

 
 
Net interest revenue increased $46.7 million or 12% over 2015. Growth in net interest revenue was due to a $1.2 billion 
increase in average loan balances as discussed further in the Loans section of Management's Discussion and Analysis of 
Financial Condition. Commercial and commercial real estate loans are primarily attributed to the Commercial Banking 
segment. Yields on commercial loans also improved primarily due to rising interest rates. 

Average deposits attributed to Commercial Banking were $8.4 billion for 2016, a decrease of $343 million or 4% compared to 
2015. See additional discussion concerning changes in Commercial Banking deposits in the Liquidity and Capital section of 
Management's Discussion and Analysis following. The net interest impact of this decrease in average deposit balances sold to 
the Funds Management unit were partially offset by the increase in the federal funds rate in December 2015 and 2016.  

Fees and commissions revenue increased $16 million or 9% over 2015. Transaction card revenue generated by the TransFund 
EFT network increased $6.4 million or 6% due to increased customer transaction volume. Brokerage and trading revenue 
increased $5.4 million or 63%. Loan syndication fees were up $2.9 million due to the timing and volume of completed deals. 
Customer hedging revenue increased $2.5 million primarily due to energy prices stabilizing during 2016. Commercial deposit 
service charges and fees increased $2.6 million or 7% over the prior year. Other revenue increased $2.5 million or 10% 
primarily related to merchant banking activity. 

Other gains, net of $2.0 million for 2016 was primarily due to a gain on sale of a merchant banking investment.

Operating expense increased $13.6 million or 7% over 2015. Personnel costs increased $3.4 million or 3% primarily due to 
standard annual merit increases. Non-personnel expense increased $10.3 million or 11% over the prior year. Intangible asset 
amortization was $2.3 million higher due to a consolidated merchant banking investment acquired in 2015. Other expense was 
up $6.4 million over the prior year primarily due to $3.9 million of litigation settlements and $2.7 million of post-acquisition 
valuation adjustments to a consolidated merchant banking investment. Corporate expense allocations decreased $7.5 million 
compared to the prior year.

43

Consumer Banking

Consumer Banking services are provided through four primary distribution channels:  traditional branches, the 24-hour 
ExpressBank call center, Internet banking and mobile banking. Consumer Banking also conducts mortgage banking activities 
through offices located outside of our consumer banking markets and through HomeDirect Mortgage, an online origination 
channel. 

Net income attributed to Consumer Banking totaled $18 thousand for 2016, compared to $23.1 million in the prior year. As 
previously discussed in Management's Discussion and Analysis – Other Operating Revenue, pre-tax net income attributable to 
the Consumer Banking segment was negatively impacted by an unexpected 85 basis point increase in the 10-year U.S. Treasury 
interest rate and related interest rates due to the markets reaction to the outcome of the U.S. presidential election. The change in 
the fair value of mortgage servicing rights, net of economic hedges, decreased pre-tax net income by $28.4 million in 2016 and 
decreased pre-tax net income $7.9 million in 2015. In addition, other operating expense attributable to the Consumer Banking 
division included $11.1 million of litigation and settlement costs in 2016. These items have been excluded from the discussion 
following. 

Table 10 – Consumer Banking 
(Dollars in thousands)

Net interest revenue from external sources

Net interest revenue from internal sources

Total net interest revenue

Net loans charged off

Net interest revenue after net loans charged off

Fees and commissions revenue

Other gains (losses), net

Other operating revenue

Personnel expense

Other non-personnel expense

Total other operating expense

Net direct contribution

Gain (loss) on financial instruments, net

Change in fair value of mortgage servicing rights

Gain on repossessed assets, net

Corporate allocations

Net income before taxes

Federal and state income taxes

Net income

Average assets

Average loans

Average deposits

Average invested capital

Year Ended December 31,

2016

2015

2014

$

85,998

$

84,848

$

28,503

113,351

6,934

106,417

218,859

(764)

218,095

96,604

106,466

203,070

121,442

(4,712)

(4,853)

916

74,936

37,857

14,726

81,852

26,813

108,665

5,477

103,188

212,387

2,270

214,657

96,801

110,330

207,131

110,714

12,406

(16,445)

1,418

64,531

43,562

16,946

$

$

23,131

$

26,616

8,836,327

$

8,373,317

1,900,768

6,668,520

265,775

1,987,668

6,520,835

277,404

37,777

123,775

4,927

118,848

224,980

(178)

224,802

103,034

146,710

249,744

93,906

(26,252)

(2,193)

979

66,411

29

11

18

8,722,372

1,893,375

6,632,687

270,209

$

$

44

 
Net interest revenue from Consumer Banking activities grew by $10.4 million or 9% over 2015, primarily related to increased 
yields on deposit balances sold to the Funds Management unit. Both average deposits and average loan balances were largely 
unchanged compared to the prior year. Net loans charged off by the Consumer Banking unit decreased $2.0 million compared 
to 2015 to $4.9 million or 0.32% of average loans. Net consumer banking charge-offs include overdrawn deposit accounts and 
other consumer loans.

Fees and commissions revenue increased $6.1 million or 2.8% compared to the prior year. Mortgage banking revenue was up 
$7.9 million or 6% over the prior year. A decrease in mortgage loan production volumes from the record level achieved in 2015 
primarily related to the exit of the correspondent lending channel, was offset by improved gain on sale margins and increased 
servicing revenue. Revenue from interchange fees paid by merchants for transactions processed from debit cards issued by the 
Company increased $580 thousand or 3%. Deposit service charges and fees decreased $983 thousand or 2% compared to the 
prior year primarily due to lower overdraft fees. Other revenue decreased $1.3 million compared to the prior year primarily due 
to changes in earnings related to low income housing tax credit investments. 

Operating expense increased $35.7 million or 18% over 2015. Personnel expenses were up $6.4 million or 7%, primarily due to 
regular merit increases and growth in mortgage banking headcount. Non-personnel expense increased $29.3 million or 28%. 
Mortgage banking costs were up $22.7 million over the prior year. Mortgage banking expense increased $12.7 million due to 
the effect of actual residential mortgage loan prepayments on the fair value of mortgage servicing rights. Default servicing and 
loss mitigation costs were up $8.1 million. Data processing and communications costs increased $2.3 million, printing, postage 
and supplies expense increased $1.6 million and occupancy and equipment expense was up $1.2 million.

45

Wealth Management

Wealth Management contributed $32.2 million to consolidated net income in 2016, up $2.7 million or 9% over the prior year. 
Net interest revenue increased $13.0 million or 26% from growth in both average loan and deposit balances and improved 
yields. Fees and commissions revenue grew by $15.9 million or 6% over the prior year. Fiduciary revenue was up over the 
prior year, primarily due to decreased fee waivers and growth in assets under management from acquisitions. Growth in 
brokerage and trading revenue related to the addition of a new group trading in U.S. government agency residential mortgage-
backed securities and related derivatives was offset by $5.0 million from the impact of the unexpected increase in long-term 
interest rates related to the market's reaction to the outcome of the U.S. presidential election. Other operating expense increased 
$22.3 million or 10%. Corporate expense allocations increased $2.0 million or 5%.

Table 11 – Wealth Management 
(Dollars in thousands)

Net interest revenue from external sources

Net interest revenue from internal sources

Total net interest revenue

Net loans charged off (recovered)

Net interest revenue after net loans charged off (recovered)

Fees and commissions revenue

Other gains, net

Other operating revenue

Personnel expense

Other non-personnel expense

Other operating expense

Net direct contribution

Gain (loss) on financial instruments, net

Corporate allocations

Net income before taxes

Federal and state income tax

Net income

Average assets

Average loans

Average deposits

Average invested capital

Year Ended December 31,

2016

2015

2014

$

33,006

$

24,744

$

29,043

62,049

(801)

62,850

24,043

48,787

(1,083)

49,870

282,710

266,790

512

733

283,222

267,523

190,756

60,238

250,994

95,078

(42)

42,378

52,658

20,484

178,333

50,331

228,664

88,729

(204)

40,357

48,168

18,737

23,817

20,959

44,776

213

44,563

240,926

1,342

242,268

170,869

47,131

218,000

68,831

(235)

38,731

29,865

11,617

$

$

32,174

$

29,431

$

18,248

6,281,127

$

5,444,483

$

5,002,515

1,132,966

4,867,293

240,451

1,068,638

4,573,710

225,968

985,659

4,391,935

215,089

Our Wealth Management division serves as custodian to or manages assets of customers. Fees are earned commensurate with 
the level of service provided. We may have sole or joint investment discretion over the assets of the customer or may be 
fiduciary for the assets, but investment selection authority remains with the customer or a manager outside of the Company. 
The Wealth Management division also provides safekeeping services for personal and institutional customers including holding 
of the customer's assets, processing of income and redemptions and other customer recordkeeping and reporting services. We 
also provide brokerage services for customers who maintain or delegate investment authority and for which BOK Financial 
does not have custody of the assets. 

A summary of assets under management or in custody follows in Table 12.

46

 
Table 12 – Assets Under Management or In Custody 
(Dollars in thousands)

Fiduciary assets in custody for which BOKF has sole or joint discretionary authority

$

December 31,

2016
14,226,844

2015
14,012,350

2014
$ 14,644,494

$

Fiduciary assets not in custody for which BOKF has sole or joint discretionary

authority

Non-managed fiduciary assets in custody
Total fiduciary assets
Assets held in safekeeping
Brokerage accounts under BOKF administration
Assets under management or in custody

3,862,939
23,691,780
41,781,563
27,633,471
5,992,828
75,407,862

$

3,384,444
20,936,844
38,333,638
26,897,107
5,817,028
71,047,773

3,324,667
18,028,716
35,997,877
22,952,394
5,653,095
$ 64,603,366

$

Net interest revenue increased $13 million or 26% over the prior year primarily related to growth in the trading securities 
portfolio related to the addition of a new trading group, improved yields on deposit balances sold to the Funds Management 
unit and growth in average deposit balances. Average deposit balances increased $294 million or 6% over the prior year and 
average loan balances were up $64 million or 6%. 

Fees and commissions revenue grew by $15.9 million or 6% over the prior year. Fiduciary and asset management revenue 
increased $9.3 million or 7% primarily related to decreased fee waivers, the acquisition of Weaver Wealth Management and 
changes in market values. Excluding the impact of the unexpected increase in long-term interest rates, brokerage and trading 
revenue increased $9.0 million or 7%. The addition of this new trading group added $139 million to the average balance of the 
trading securities portfolio in 2016. Retail brokerage fees increased $949 thousand or 4% over the prior year. 

Other operating revenue includes fees earned from state and municipal bond underwriting and financial advisory services, 
primarily in the Oklahoma and Texas markets. In 2016, the Wealth Management division participated in 417 underwritings that 
totaled $17.8 billion. As a participant, the Wealth Management division was responsible for facilitating the sale of 
approximately $2.7 billion of these underwritings. The Wealth Management division also participated in 24 corporate debt 
underwritings during 2016 that totaled $9.5 billion. Our interest in these underwritings was $223 million. In 2015, the Wealth 
Management division participated in 434 underwritings that totaled approximately $9.3 billion. Our interest in these 
underwritings totaled approximately $2.9 billion. The Wealth Management division also participated in 15 corporate debt 
underwritings during 2015 that totaled $11.8 billion. Our interest in these underwritings was $230 million. 

Operating expenses increased $22 million or 10% over the prior year. Personnel expenses increased $12.4 million or 7%, 
primarily due to a $10.2 million increase in incentive compensation expense. Regular compensation expense also increased 
$2.1 million primarily due to increased headcount and annual merit increases. Non-personnel expense was up $9.9 million or 
20% over 2015. Non-personnel expense included $1.6 million of litigation costs and a $1.6 million increase in legal fees for 
matters discussed in Note 14 to the consolidated financial statements. Other professional fees related to continued technology 
upgrades increased $4.0 million. Data processing and communication expense increased $1.2 million.

47

 
Financial Condition

Securities

We maintain a securities portfolio to enhance profitability, manage interest rate risk, provide liquidity and comply with 
regulatory requirements. Securities are classified as trading, held for investment, or available for sale. See Note 2 to the 
consolidated financial statements for the composition of the securities portfolio as of December 31, 2016, December 31, 2015 
and December 31, 2014.

Table 13 – Securities 
(In thousands)

Trading:

U.S. government agency debentures
U.S. government agency residential

mortgage-backed securities

Municipal and other tax-exempt securities
Other trading securities

Total trading securities

Investment:

Municipal and other tax-exempt securities
U.S. government agency residential

mortgage-backed securities

Other debt securities

Total investment securities

Available for sale:

U.S. Treasury securities
Municipal and other tax-exempt securities
Residential mortgage-backed securities:

2016

December 31,

2015

2014

Amortized
Cost

Fair
Value

Amortized
Cost

Fair
Value

Amortized
Cost

Fair
Value

$

6,238

$

6,234

$

61,366

$

61,295

$

85,154

$

85,092

309,432
14,377
6,843
336,890

$

310,067
14,427
6,900
337,628

$

10,972
31,691
18,235
122,264

$

10,989
31,901
18,219
122,404

$

30,930
38,933
33,496
188,513

$

31,199
38,951
33,458
188,700

320,364

$

321,225

$

365,258

368,910

$

405,090

$

408,344

20,777
205,004
546,145

1,000
41,050

$

$

21,473
222,795
565,493

999
40,993

$

$

26,833
205,745
597,836

1,000
56,681

$

$

27,874
232,375
629,159

995
56,817

$

$

35,750
211,520
652,360

1,005
63,018

$

$

37,463
227,819
673,626

1,005
63,557

$

$

$

$

U.S. government agencies
Private issue

5,475,351
101,192

5,460,386
115,535

5,861,096
128,111

5,898,351
139,118

6,549,304
154,360

6,646,884
165,957

Total residential mortgage-backed

securities

Commercial mortgage-backed securities

guaranteed by U.S. government
agencies

Other debt securities
Perpetual preferred stock
Equity securities and mutual funds

Total available for sale securities

Fair value option securities:

U.S. government agency residential

mortgage-backed securities

5,576,543

5,575,921

5,989,207

6,037,469

6,703,664

6,812,841

3,035,750
4,400
15,561
17,424
$ 8,691,728

3,017,933
4,152
18,474
18,357
$ 8,676,829

2,919,044
4,400
17,171
17,121
$ 9,004,624

2,905,796
4,151
19,672
17,833
$ 9,042,733

2,064,091
9,438
22,171
18,603
$ 8,881,990

2,048,609
9,212
24,277
19,444
$ 8,978,945

$

78,823

$

77,046

$

446,277

$

444,217

$

309,973

$

311,597

48

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We enter into trading activities both as an intermediary for customers and for our own account. We take positions in securities 
for resale to customers, which include individuals, corporations, foundations and financial institutions. During 2016, we 
expanded our trading activities for two principal strategies. We increased the volume of mortgage-backed securities trading. 
Through this activity, we purchase pools with specific retail mortgage collateral or to-be-announced ("TBA") derivatives with 
stipulations. These financial instruments are customized to meet requirements of our institutional customers. We also increased 
the volume of transactions where we serve as market makers by providing liquidity as a buyer and seller of TBA derivative 
contracts. These transactions accommodate our customers' hedging requirements or meet their needs for investment products or 
cash. Customers for this trading activity generally include mortgage loan originators, money managers, banks, insurance 
companies and hedge funds. Expansion of our trading activities resulted in an increase in the reported balances of trading 
securities and receivables for unsettled trading positions in the Consolidated Balance Sheets. Price risk for our trading activities 
is incorporated into the limits described in the Market Risk section of this report. 

At December 31, 2016, the carrying value of investment (held-to-maturity) securities was $546 million and the fair value was 
$565 million. Investment securities consist primarily of intermediate and long-term, fixed rate Oklahoma and Texas municipal 
bonds, taxable Texas school construction bonds and residential mortgage-backed securities issued by U.S. government 
agencies. The investment security portfolio is diversified among issuers. The largest obligation of any single issuer is $30 
million. Substantially all of these bonds are general obligations of the issuers. Approximately $104 million of the Texas school 
construction bonds are also guaranteed by the Texas Permanent School Fund Guarantee Program supervised by the State Board 
of Education for the State of Texas.

Available for sale securities, which may be sold prior to maturity, are carried at fair value. Unrealized gains or losses, net of 
deferred taxes, are recorded as accumulated other comprehensive income in shareholders’ equity. The amortized cost of 
available for sale securities totaled $8.7 billion at December 31, 2016, a decrease of $313 million compared to December 31, 
2015. Available for sale securities consist primarily of U.S. government agency residential mortgage-backed securities and U.S. 
government agency commercial mortgage-backed securities. Commercial mortgage-backed securities have prepayment 
penalties similar to commercial loans. At December 31, 2016, residential mortgage-backed securities represented 64% of total 
available for sale securities. The decrease in amortized cost during the year was primarily due to a decrease in U.S. government 
agency residential mortgage-backed securities.

A primary risk of holding residential mortgage-backed securities comes from extension during periods of rising interest rates or 
prepayment during periods of falling interest rates. We evaluate this risk through extensive modeling of risk both before making 
an investment and throughout the life of the security. Our best estimate of the duration of the combined investment and 
available for sale securities portfolios at December 31, 2016 is 3.1 years. Management estimates the combined portfolios' 
duration extends to 3.4 years assuming an immediate 200 basis point upward shock. The estimated combined portfolios' 
duration contracts to 2.9 years assuming a 50 basis point decline in the current low rate environment. 

Residential mortgage-backed securities also have credit risk from delinquency or default of the underlying loans. We mitigate 
this risk by primarily investing in securities issued by U.S. government agencies. Principal and interest payments on the 
underlying loans are fully guaranteed. At December 31, 2016, approximately $5.5 billion of the amortized cost of the 
Company’s residential mortgage-backed securities were issued by U.S. government agencies. The fair value of these residential 
mortgage-backed securities totaled $5.5 billion at December 31, 2016.

We also hold amortized cost of $101 million in residential mortgage-backed securities privately issued by publicly-owned 
financial institutions. The amortized cost of these securities decreased $27 million from December 31, 2015, due to cash 
payments received during the year. The fair value of our portfolio of privately issued residential mortgage-backed securities 
totaled $116 million at December 31, 2016.

The amortized cost of our portfolio of privately issued residential mortgage-backed securities included $57 million of Jumbo-A 
residential mortgage loans and $44 million of Alt-A residential mortgage loans. Jumbo-A residential mortgage loans generally 
meet government underwriting standards, but have loan balances that exceed agency maximums. Alt-A mortgage loans 
generally do not have sufficient documentation to meet government agency underwriting standards. Approximately 90% of our 
Alt-A mortgage-backed securities represent pools of fixed rate residential mortgage loans. None of the adjustable rate 
mortgages are payment option adjustable rate mortgages (“ARMs”). Approximately 30% of our Jumbo-A residential mortgage-
backed securities represent pools of fixed rate residential mortgage loans and none of the adjustable rate mortgages are 
payment option ARMs.

49

The aggregate gross amount of unrealized losses on available for sale securities totaled $75 million at December 31, 2016, a 
$33 million increase compared to December 31, 2015. On a quarterly basis, we perform separate evaluations on debt and equity 
securities to determine if the unrealized losses are temporary as more fully described in Note 2 of the Consolidated Financial 
Statements. No other-than-temporary impairment charges were recognized in earnings in 2016.

Certain residential mortgage-backed securities issued by U.S. government agencies and included in fair value option securities 
on the Consolidated Balance Sheets, have been segregated and designated as economic hedges of changes in the fair value of 
our mortgage servicing rights. We have elected to carry these securities at fair value with changes in fair value recognized in 
current period income. These securities are held with the intent that gains or losses will offset changes in the fair value of 
mortgage servicing rights and related derivative contracts.

We are required to hold stock as members of the Federal Reserve system and the Federal Home Loan Banks ("FHLB"). These 
restricted equity securities are carried at cost as these securities do not have a readily determined fair value because ownership 
of these shares are restricted and they lack a market. Federal Reserve Bank stock totaled $36 million at December 31, 2016, 
$36 million at December 31, 2015 and $35 million at December 31, 2014. Holdings of FHLB stock totaled $271 million at 
December 31, 2016, $237 million at December 31, 2015 and $106 million at December 31, 2014. We are required to hold 
FHLB stock in proportion to our borrowings with the FHLB.

Bank-Owned Life Insurance

We have approximately $308 million of bank-owned life insurance at December 31, 2016. This investment is expected to 
provide a long-term source of earnings to support existing employee benefit programs. Approximately $281 million is held in 
separate accounts. Our separate account holdings are invested in diversified portfolios of investment-grade fixed income 
securities and cash equivalents, including U.S. Treasury and Agency securities, residential mortgage-backed securities, 
corporate debt, asset-backed and commercial mortgage-backed securities. The portfolios are managed by unaffiliated 
professional managers within parameters established in the portfolio’s investment guidelines. The cash surrender value of 
certain life insurance policies is further supported by a stable value wrap, which protects against changes in the fair value of the 
investments. At December 31, 2016, the fair value of investments held in separate accounts was approximately $285 
million. As the underlying fair value of the investments held in a separate account at December 31, 2016 exceeded the net book 
value of the investments, no cash surrender value was supported by the stable value wrap. The stable value wrap is provided by 
a domestic financial institution. The remaining cash surrender value of $27 million primarily represents the cash surrender 
value of policies held in general accounts and other amounts due from various insurance companies.

50

Loans

The aggregate loan portfolio before allowance for loan losses totaled $17.0 billion at December 31, 2016, growing $1.0 billion 
or 7% over December 31, 2015, including $485 million from the Mobank acquisition. Commercial loans have grown by $138 
million or 1% due largely to growth in services, healthcare and wholesale/retail sector loans, partially offset by a decrease in 
energy loan balances compared to the prior year. The Mobank acquisition added $289 million of commercial loans, primarily in 
the services sector. Commercial real estate loans increased $550 million or 17% primarily due to growth in loans secured by 
industrial facilities, office buildings and multifamily residential properties. The Mobank acquisition added $87 million in 
commercial real estate balances. Residential mortgage loans increased $73 million and personal loans increased $287 million.

Table 14 – Loans 
(In thousands)

Commercial:

Services

Energy

Healthcare

Wholesale/retail

Manufacturing

Other commercial and industrial

Total commercial

Commercial real estate:

Multifamily

Industrial

Office

Retail

Residential construction and land development

Other commercial real estate

Total commercial real estate

Residential mortgage:

Permanent mortgage

Permanent mortgages guaranteed by U.S.

government agencies

Home equity

2016

2015

2014

2013

2012

December 31,

$

3,108,990

$

2,784,276

$

2,391,530

$

2,282,210

$

2,164,186

2,497,868

2,201,916

1,576,818

514,975

490,257

3,097,328

1,883,380

1,422,064

556,729

508,754

2,860,428

1,454,969

1,440,015

532,594

416,134

2,351,760

1,274,246

1,201,364

391,751

441,890

2,460,659

1,081,406

1,106,439

348,484

480,738

10,390,824

10,252,531

9,095,670

7,943,221

7,641,912

903,272

871,749

798,888

761,888

135,533

337,716

751,085

563,169

637,707

796,499

160,426

350,147

704,298

428,817

415,544

666,889

143,591

369,011

576,502

243,877

411,499

586,047

206,258

391,170

402,896

245,994

427,872

522,786

253,093

376,358

3,809,046

3,259,033

2,728,150

2,415,353

2,228,999

1,006,820

945,336

969,951

1,062,744

1,123,965

199,387

743,625

196,937

734,620

205,950

773,611

181,598

807,684

160,444

760,631

Total residential mortgage

1,949,832

1,876,893

1,949,512

2,052,026

2,045,040

Personal

Total

839,958

552,697

434,705

381,664

395,505

$

16,989,660

$ 15,941,154

$

14,208,037

$

12,792,264

$

12,311,456

51

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial

Commercial loans represent loans for working capital, facilities acquisition or expansion, purchases of equipment and other 
needs of commercial customers primarily located within our geographical footprint. Commercial loans are underwritten 
individually and represent on-going relationships based on a thorough knowledge of the customer, the customer’s industry and 
market. While commercial loans are generally secured by the customer’s assets including real property, inventory, accounts 
receivable, operating equipment, interests in mineral rights and other property and may also include personal guarantees of the 
owners and related parties, the primary source of repayment of the loans is the on-going cash flow from operations of the 
customer’s business. Inherent lending risks are centrally monitored on a continuous basis from underwriting throughout the life 
of the loan for compliance with commercial lending policies.

Service sector loans grew by $325 million or 12%, healthcare sector loans increased $319 million or 17% and wholesale/retail 
sector loans increased $155 million or 11% over December 31, 2015. This growth was partially offset by a decrease of $599 
million or 19% in energy sector loan balances. 

Table 15 presents our commercial loan portfolio distributed primarily by collateral location. Loans for which the collateral 
location is less relevant, such as unsecured loans and reserve-based energy loans, are distributed by the borrower’s primary 
operating location.

Table 15 – Commercial Loans by Collateral Location 
(In thousands)

Oklahoma

Texas

New
Mexico

Arkansas Colorado

Arizona

Kansas/
Missouri

Other

Total

$ 741,806

$ 893,893

$207,966

$

12,609

$ 322,053

$206,986

$ 337,772

$ 385,905

$ 3,108,990

510,621

1,243,253

17,557

5,099

229,585

9,526

90,440

291,834

382,739

109,288

379,504

136,004

100,187

129,250

123,987

252,334

554,069

149,525

49,198

472

71,268

4,790

66,878

42,628

70,695

62,131

99,309

76,305

391,787

788,816

282,662

69,836

2,497,868

2,201,916

1,576,818

514,975

100,963

125,577

3,666

51,056

21,940

36,983

73,280

76,792

490,257

Services

Energy

Healthcare

Wholesale/retail

Manufacturing

Other commercial
and industrial

Total commercial

loans

$2,137,251

$3,345,821

$414,863

$ 245,009

$ 812,334

$510,308

$ 929,440

$1,995,798

$10,390,824

The majority of our commercial portfolio is located within our geographic footprint. At December 31, 2016, the Other category 
is composed primarily of California totaling $301 million or 2.9% of the commercial portfolio, Louisiana totaling $158 million 
or 1.5% of the commercial portfolio, Florida totaling $116 million or 1.1% of the commercial portfolio and Tennessee totaling 
$109 million or 1.1% of the commercial portfolio. All other states individually represent one percent or less of the total 
commercial loan portfolio. 

Supporting the energy industry with loans to producers and other energy-related entities has been a hallmark of the Company 
since its founding and represents a large portion of our commercial loan portfolio. In addition, energy production and related 
industries have a significant impact on the economy in our primary markets. Loans collateralized by oil and gas properties are 
subject to a semi-annual engineering review by our internal staff of petroleum engineers. This review is utilized as the basis for 
developing the expected cash flows supporting the loan amount. The projected cash flows are discounted according to risk 
characteristics of the underlying oil and gas properties. Loans are evaluated to demonstrate with reasonable certainty that crude 
oil, natural gas and natural gas liquids can be recovered from known oil and gas reservoirs under existing economic and 
operating conditions at current pricing levels and with existing conventional equipment and operating methods and costs. As 
part of our evaluation of credit quality, we analyze rigorous stress tests over a range of commodity prices and take proactive 
steps to mitigate risk when appropriate.

52

 
 
Outstanding energy loans totaled $2.5 billion or 15% of total loans at December 31, 2016. Unfunded energy loan commitments 
increased by $320 million during the year to $2.7 billion at December 31, 2016 primarily due to energy borrowers paying down 
outstanding balances. Total outstanding loan balances as a percentage of total energy loan commitments decreased to 50% at 
December 31, 2016, compared to 58% at December 31, 2015. Approximately $2.0 billion or 80% of energy loans were to oil 
and gas producers, a $550 million decrease compared to December 31, 2015. The majority of this portfolio is first lien, senior 
secured, reserve-based lending, which we believe is the lowest risk form of energy lending. The Company has largely avoided 
higher-risk energy lending areas including second-lien financing, mezzanine debt and subordinated debt. In addition, the 
Company has no direct exposure to energy company equity or to borrowers with deepwater offshore exposure. Approximately 
57% of the committed production loans are secured by properties primarily producing oil and 43% of the committed production 
loans are secured by properties primarily producing natural gas. Loans to borrowers in the midstream sector of the industry 
totaled $264 million or 10% of energy loans, an increase of $71 million over the prior year. Loans to borrowers that provide 
services to the energy industry totaled $185 million or 7% of energy loans, a decrease of $94 million during 2016. Loans to 
other energy borrowers, including those engaged in wholesale or retail energy sales totaled $60 million or 3% of energy loans, 
a decrease of $26 million compared to the prior year.

The services sector of the loan portfolio totaled $3.1 billion or 18% of total loans and consists of a large number of loans to a 
variety of businesses, including governmental, financial and insurance, educational, religious and not-for-profit and 
professional/technical services. Loans to governmental entities totaled $680 million at December 31, 2016. Approximately $1.4 
billion of the services category is made up of loans with individual balances of less than $10 million. Service sector loans are 
generally secured by the assets of the borrower with repayment coming from the cash flows of ongoing operations of the 
customer’s business. 

The healthcare sector of the loan portfolio totaled $2.2 billion or 13% of total loans and consists primarily of loans for the 
development and operation of senior housing and care facilities, including independent living, assisted living and skilled 
nursing. Healthcare also includes loans to hospitals and other medical service providers.

We participate in shared national credits when appropriate to obtain or maintain business relationships with local 
customers. Shared national credits are defined by banking regulators as credits of more than $20 million and with three or more 
non-affiliated banks as participants. At December 31, 2016, the outstanding principal balance of these loans totaled $3.7 
billion. Approximately 81% of these loans are to borrowers with local market relationships. We serve as the agent lender in 
approximately 17% of our shared national credits, based on dollars committed. We hold shared credits to the same standard of 
analysis and perform the same level of review as internally originated credits. Our lending policies generally avoid loans in 
which we do not have the opportunity to maintain or achieve other business relationships with the customer. In addition to 
management’s quarterly assessment of credit risk, banking regulators annually review a sample of shared national credits for 
proper risk grading.

Commercial Real Estate

Commercial real estate represents loans for the construction of buildings or other improvements to real estate and property held 
by borrowers for investment purposes. The majority of commercial real estate loans are secured by properties within our 
geographic footprint, with the larger concentrations in Texas and Oklahoma, 30% and 11% at December 31, 2016. We require 
collateral values in excess of the loan amounts, demonstrated cash flows in excess of expected debt service requirements, 
equity investment in the project and a portion of the project already sold, leased or permanent financing already secured. The 
expected cash flows from all significant new or renewed income producing property commitments are stress tested to reflect 
the risks in varying interest rates, vacancy rates and rental rates. As with commercial loans, inherent lending risks are centrally 
monitored on a continuous basis from underwriting throughout the life of the loan for compliance with applicable lending 
policies.

Commercial real estate loans totaled $3.8 billion or 22% of the loan portfolio at December 31, 2016. The outstanding balance 
of commercial real estate loans increased $550 million over 2015, primarily due to growth in loans secured by industrial 
facilities, office buildings and multifamily residential properties. This growth was partially offset by a decrease in loans secured 
by retail facilities and residential construction and land development loans. The commercial real estate loan segment is 
approaching our internal concentration limit. The commercial real estate loan balance as a percentage of our total loan portfolio 
has ranged from 18% to 23% over the past five years. The commercial real estate segment of our loan portfolio distributed by 
collateral location follows in Table 16.

53

Table 16 – Commercial Real Estate Loans by Collateral Location 
(In thousands)

Multifamily

Industrial

Office

Retail

Residential

construction and
land
development

Other commercial

real estate

Total commercial
real estate loans

Oklahoma

Texas

95,095

83,607

86,388

79,363

320,982

254,542

208,124

New
Mexico

11,877

26,869

52,654

Arkansas Colorado Arizona

25,093

54

1,833

6,712

67,770

33,319

66,043

20,308

71,188

18,075

66,397

32,855

Kansas/
Missouri

120,629

81,087

76,508

20,255

Other

Total

190,638

374,196

240,941

194,653

903,272

871,749

798,888

761,888

298,886

108,856

13,206

28,691

18,025

6,038

25,145

8,001

13,560

22,867

135,533

70,841

37,652

15,069

5,440

24,755

42,167

27,499

114,293

337,716

$ 428,500

$1,148,877

$ 233,350

$ 45,170

$ 237,340

$238,683

$ 339,538

$1,137,588

$ 3,809,046

The Other category includes California with $189 million or 5% of total commercial real estate loans and Utah with $139 
million or 4%, of total commercial real estate loans. All other states individually represent less than 3% of the total commercial 
real estate loan population.

Residential Mortgage and Personal

Residential mortgage loans provide funds for our customers to purchase or refinance their primary residence or to borrow 
against the equity in their home. Residential mortgage loans are secured by a first or second-mortgage on the customer’s 
primary residence. Personal loans consist primarily of loans to wealth management clients secured by the cash surrender value 
of insurance policies and marketable securities. It also includes direct loans secured by and for the purchase of automobiles, 
recreational and marine equipment as well as unsecured loans. Residential mortgage and personal loans are made in accordance 
with underwriting policies we believe to be conservative and are fully documented. Credit scoring is assessed based on 
significant credit characteristics including credit history, residential and employment stability.

Residential mortgage loans totaled $1.9 billion, a $73 million or 4% increase compared to December 31, 2015. In general, we 
sell the majority of our fixed rate loan originations that conform to U.S. government agency standards in the secondary market 
and retain the majority of our non-conforming and adjustable-rate mortgage loans. We have no concentration in sub-prime 
residential mortgage loans. Our mortgage loan portfolio does not include payment option adjustable rate mortgage loans or 
adjustable rate mortgage loans with initial rates that are below market. Collateral for 97% of our residential mortgage portfolio 
is located within our geographic footprint. 

The majority of our permanent mortgage loan portfolio is primarily composed of various non-conforming mortgage programs 
to support customer relationships including jumbo mortgage loans, non-builder construction loans and special loan programs 
for high net worth individuals or certain professionals. Jumbo loans may be fixed or variable rate and are fully amortizing. The 
size of jumbo loans exceed maximums set under government sponsored entity standards, but otherwise generally conform to 
those standards. These loans generally require a minimum FICO score of 720 and a maximum debt-to-income ratio (“DTI”) of 
38%. Loan-to-value ratios (“LTV”) are tiered from 60% to 100%, depending on the market. Special mortgage programs include 
fixed and variable rate fully amortizing loans tailored to the needs of certain healthcare professionals. Variable rate loans are 
fully indexed at origination and may have fixed rates for three to ten years, then adjust annually thereafter.

At December 31, 2016, $199 million of permanent residential mortgage loans are guaranteed by U.S. government agencies. We 
have minimal credit exposure on loans guaranteed by the agencies. This amount includes residential mortgage loans previously 
sold into GNMA mortgage pools that are eligible to be repurchased. We may repurchase these loans when certain defined 
delinquency criteria are met. Because of this repurchase right, the Company is deemed to have regained effective control over 
these loans and must include them in the Consolidated Balance Sheets. Permanent residential mortgage loans guaranteed by 
U.S. government agencies increased $2.5 million or 1% over December 31, 2015.

54

 
 
Home equity loans totaled $744 million at December 31, 2016, a $9.0 million or 1% increase over December 31, 2015. Our 
home equity portfolio is primarily composed of first-lien, fully amortizing home equity loans. Home equity loans generally 
require a minimum FICO score of 700 and a maximum DTI of 50%. The maximum loan amount available for our home equity 
loan products is generally $400 thousand. Revolving loans have a 10 year revolving period followed by 15 year term of 
amortizing repayments. Interest-only home equity loans have a 5 year revolving period followed by a 15 year term of 
amortizing repayments and may not be extended for any additional revolving time. All other home equity loans may be 
extended at management's discretion for an additional 5 year revolving term subject to an update of certain credit information. 
A summary of our home equity loan portfolio at December 31, 2016 by lien position and amortizing status follows in Table 17.

Table 17 – Home Equity Loans 
(In thousands)

First lien

Junior lien

Total home equity

Revolving

Amortizing

Total

$

$

70,854

$

414,236

$

123,779

134,756

194,633

$

548,992

$

485,090

258,535

743,625

The distribution of residential mortgage and personal loans at December 31, 2016 is presented in Table 18. Residential 
mortgage loans are distributed by collateral location. Personal loans are generally distributed by borrower location.

Table 18 – Residential Mortgage and Personal Loans by Collateral Location 
(In thousands)

Residential mortgage:
Permanent mortgage

Permanent

mortgages guaranteed
by U.S. government
agencies
Home equity

Total residential
mortgage

Oklahoma

Texas

New
Mexico

Arkansas Colorado Arizona

Kansas/
Missouri

Other

Total

$ 187,855

$407,108

$ 38,037

$ 14,032

$ 159,205

$ 91,208

$ 77,928

$ 31,447

$ 1,006,820

57,192
406,393

25,509
137,288

60,069
102,821

6,870
5,599

5,348
35,324

1,919
8,688

14,071
47,147

28,409
365

199,387
743,625

$ 651,440

$569,905

$ 200,927

$ 26,501

$ 199,877

$101,815

$ 139,146

$ 60,221

$ 1,949,832

Personal

$ 295,047

$334,710

$ 11,306

$

6,525

$ 52,679

$ 48,910

$ 78,386

$ 12,395

$ 839,958

55

 
 
 
 
 
 
 
 
The Company secondarily evaluates loan portfolio performance based on the primary geographical market managing the loan. 
Loans attributed to a geographical market may not represent the location of the borrower or the collateral. All permanent 
mortgage loans serviced by our mortgage banking unit and held for investment by BOKF, NA are centrally managed by the 
Bank of Oklahoma.

Table 19 – Loans Managed by Primary Geographical Market
(In thousands)

Bank of Oklahoma:

Commercial
Commercial real estate
Residential mortgage
Personal

Total Bank of Oklahoma

Bank of Texas:
Commercial
Commercial real estate
Residential mortgage
Personal

Total Bank of Texas

Bank of Albuquerque:

Commercial
Commercial real estate
Residential mortgage
Personal

Total Bank of Albuquerque

Bank of Arkansas:

Commercial
Commercial real estate
Residential mortgage
Personal

Total Bank of Arkansas

Colorado State Bank & Trust:

Commercial
Commercial real estate
Residential mortgage
Personal

Total Colorado State Bank & Trust

Bank of Arizona:
Commercial
Commercial real estate
Residential mortgage
Personal

Total Bank of Arizona

Bank of Kansas City / Mobank:

Commercial
Commercial real estate
Residential mortgage
Personal

Total Bank of Kansas City / Mobank

$

2016

2015

December 31,
2014

2013

2012

$

3,370,259
684,381
1,407,197
303,823
5,765,660

4,022,455
1,415,011
233,981
306,748
5,978,195

399,256
284,603
108,058
11,483
803,400

86,577
73,616
7,015
6,524
173,732

1,018,208
265,264
59,631
50,372
1,393,475

686,253
747,409
36,265
52,553
1,522,480

807,816
338,762
97,685
108,455
1,352,718

$

3,782,687
739,829
1,409,114
255,387
6,187,017

3,908,425
1,204,202
219,126
203,496
5,535,249

375,839
313,422
120,507
11,557
821,325

92,359
69,320
8,169
819
170,667

987,076
223,946
53,782
23,384
1,288,188

606,733
507,523
44,047
31,060
1,189,363

499,412
200,791
22,148
26,994
749,345

$

3,142,689
603,610
1,467,096
206,115
5,419,510

3,549,128
1,027,817
235,948
154,363
4,967,256

383,439
296,358
127,999
10,899
818,695

95,510
88,301
7,261
5,169
196,241

977,961
194,553
57,119
27,918
1,257,551

547,524
355,140
35,872
12,883
951,419

399,419
162,371
18,217
17,358
597,365

$

2,902,140
602,010
1,524,212
192,283
5,220,645

3,052,274
816,574
260,544
131,297
4,260,689

342,336
308,829
133,900
13,842
798,907

81,556
78,264
7,922
8,023
175,765

735,626
190,355
62,821
22,686
1,011,488

417,702
257,477
47,111
7,887
730,177

411,587
161,844
15,516
5,646
594,593

3,089,686
580,694
1,488,486
220,096
5,378,962

2,726,925
771,796
275,408
116,252
3,890,381

265,830
326,135
130,337
15,456
737,758

62,049
90,821
13,046
15,421
181,337

776,610
173,327
59,363
19,333
1,028,633

313,296
201,760
57,803
4,686
577,545

407,516
84,466
20,597
4,261
516,840

Total BOK Financial loans

$

16,989,660

$ 15,941,154

$

14,208,037

$

12,792,264

$

12,311,456

56

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 20 – Loan Maturity and Interest Rate Sensitivity at December 31, 2016 
(In thousands)

Loan maturity:

Commercial

Commercial real estate

Total

Interest rate sensitivity for selected loans with:

Predetermined interest rates

Floating or adjustable interest rates

Total

Loan Commitments

Remaining Maturities of Selected Loans

Total

Within 1
Year

1-5 Years

After 5
Years

$ 10,390,824

3,809,046

$ 14,199,870

$

2,820,073

$

$

$

783,534

$

5,771,115

$

3,836,175

351,546

2,438,228

1,019,272

1,135,080

120,765

$

$

8,209,343

$

4,855,447

685,710

$

2,013,598

11,379,797

1,014,315

7,523,633

2,841,849

$ 14,199,870

$

1,135,080

$

8,209,343

$

4,855,447

We enter into certain off-balance sheet arrangements in the normal course of business. These arrangements include unfunded 
loan commitments which totaled $9.4 billion and standby letters of credit which totaled $585 million at December 31, 2016. 
Loan commitments may be unconditional obligations to provide financing or conditional obligations that depend on the 
borrower’s financial condition, collateral value or other factors. Standby letters of credit are unconditional commitments to 
guarantee the performance of our customer to a third party. Since some of these commitments are expected to expire before 
being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Approximately $390 
thousand of the outstanding standby letters of credit were issued on behalf of customers whose loans are nonperforming at 
December 31, 2016.

Table 21 – Off-Balance Sheet Credit Commitments 
(In thousands)

Loan commitments

Standby letters of credit

Mortgage loans sold with recourse

December 31,

2016

2015

2014

2013

2012

$

9,404,665

$

8,455,037

$

8,328,416

7,096,373

6,636,587

585,472

139,486

507,988

155,489

447,599

179,822

444,248

191,299

466,477

226,922

We have off-balance sheet commitments related to certain residential mortgage loans originated under community development 
loan programs that were sold to a U.S. government agency with full recourse. These mortgage loans were underwritten to 
standards approved by the agencies, including full documentation and originated under programs available only for owner-
occupied properties. We no longer sell residential mortgage loans with recourse other than obligations under standard 
representations and warranties. We are obligated to repurchase these loans for the life of these loans in the event of foreclosure 
for the unpaid principal and interest at the time of foreclosure. At December 31, 2016, the principal balance of residential 
mortgage loans sold subject to recourse obligations totaled $139 million, down from $155 million at December 31, 
2015. Substantially all of these loans are to borrowers in our primary markets including $88 million to borrowers in Oklahoma, 
$15 million to borrowers in Arkansas and $12 million to borrowers in New Mexico. At December 31, 2016, approximately 3% 
of these loans were nonperforming and 6% were past due 30 to 89 days. A separate accrual for credit risk of $4.0 million is 
available to absorb losses on these loans.

We also have an off-balance sheet obligation to repurchase residential mortgage loans sold to government sponsored entities 
through our mortgage banking activities due to standard representations and warranties made under contractual agreements as 
described further in Note 7 to the Consolidated Financial Statements. For the period from 2010 through 2016, approximately 
21% of repurchase requests have currently resulted in actual repurchases or indemnification by the Company. The accrual for 
credit losses related to potential loan repurchases under representations and warranties totaled $2.8 million at December 31, 
2016. 

57

 
 
 
 
 
 
 
 
 
Customer Derivative Programs

We offer programs that permit our customers to hedge various risks, including fluctuations in energy, cattle and other 
agricultural product prices, interest rates and foreign exchange rates. Each of these programs work essentially the same 
way. Derivative contracts are executed between the customers and the Company. Offsetting contracts are executed between the 
Company and selected counterparties or exchanges to minimize market risk to us from changes in commodity prices, interest 
rates or foreign exchange rates. The counterparty contracts are identical to the customer contracts, except for a fixed pricing 
spread or a fee paid to us as compensation for administrative costs, credit risk and profit.

The customer derivative programs create credit risk for potential amounts due to the Company from our customers and from 
the counterparties. Customer credit risk is monitored through existing credit policies and procedures. The effects of changes in 
commodity prices, interest rates or foreign exchange rates are evaluated across a range of possible options to determine the 
maximum exposure we are willing to have individually to any customer. Customers may also be required to provide cash 
margin or other collateral in conjunction with our credit agreements to further limit our credit risk.

Counterparty credit risk is evaluated through existing policies and procedures. This evaluation considers the total relationship 
between BOK Financial and each of the counterparties. Individual limits are established by management, approved by Credit 
Administration and reviewed by the Asset/Liability Committee. Margin collateral is required if the exposure between the 
Company and any counterparty exceeds established limits. Based on declines in the counterparties’ credit ratings, these limits 
may be reduced and additional margin collateral may be required.

A deterioration of the credit standing of one or more of the customers or counter-parties to these contracts may result in BOK 
Financial recognizing a loss as the fair value of the affected contracts may no longer move in tandem with the offsetting 
contracts. This occurs if the credit standing of the customer or counterparty deteriorated such that either the fair value of 
underlying collateral no longer supports the contract or the customer or counterparty’s ability to provide margin collateral was 
impaired. Credit losses on customer derivatives reduce brokerage and trading revenue in the Consolidated Statements of 
Earnings.

Derivative contracts are carried at fair value. At December 31, 2016, the net fair values of derivative contracts, before 
consideration of cash margin, reported as assets under these programs totaled $690 million compared to $611 million at 
December 31, 2015. Derivative contracts carried as assets include foreign exchange contracts with fair values of $494 million, 
to-be-announced residential mortgage-backed securities with fair values of $120 million, energy contracts with fair values of 
$36 million, interest rate swaps primarily sold to loan customers with fair values of $34 million and equity option contracts 
with fair values of $4.4 million. Before consideration of cash margin paid to counterparties, the aggregate net fair values of 
derivative contracts held under these programs reported as liabilities totaled $687 million.

At December 31, 2016, total derivative assets were reduced by $11 million of cash collateral received from counterparties and 
total derivative liabilities were reduced by $48 million of cash collateral paid to counterparties related to instruments executed 
with the same counterparty under a master netting agreement.

A table showing the notional and fair value of derivative assets and liabilities on both a gross and net basis is presented in Note 
3 to the Consolidated Financial Statements.

The fair value of derivative contracts reported as assets under these programs, net of cash margin held by the Company, by 
category of debtor at December 31, 2016 follows in Table 22.

Table 22 – Fair Value of Derivative Contracts 
(In thousands)

Banks and other financial institutions

Customers

Exchanges and clearing organizations

Fair value of customer hedge asset derivative contracts, net

$

289,356

285,636

104,454

$

679,446

The largest exposure to a single counterparty was to a clearing organization for to-be-announced mortgage-backed securities 
which totaled $97 million at December 31, 2016. 

58

 
 
Our customer derivative program also introduces liquidity and capital risk. We are required to provide cash margin to certain 
counterparties when the net negative fair value of the contracts exceeds established limits. Also, changes in commodity prices 
affect the amount of regulatory capital we are required to hold as support for the fair value of our derivative assets. These risks 
are modeled as part of the management of these programs. Based on current prices, a decrease in market prices equivalent to 
$29.52 per barrel of oil would decrease the fair value of derivative assets by $28 million. An increase in prices equivalent to 
$82.29 per barrel of oil would increase the fair value of derivative assets by $258 million. Liquidity requirements of this 
program are also affected by our credit rating. A decrease in credit rating to below investment grade would increase our 
obligation to post cash margin on existing contracts by approximately $15 million. The fair value of our to-be-announced 
residential mortgage-backed securities and interest rate swap derivative contracts is affected by changes in interest rates. Based 
on our assessment as of December 31, 2016, changes in interest rates would not materially impact regulatory capital or liquidity 
needed to support this portion of our customer derivative program.

Summary of Loan Loss Experience

We maintain an allowance for loan losses and an accrual for off-balance sheet credit risk. At December 31, 2016, the combined 
allowance for loan losses and accrual for off-balance sheet credit risk totaled $257 million or 1.52% of outstanding loans and 
117% of nonaccruing loans, excluding loans guaranteed by U.S. Government agencies. The allowance for loan losses was $246 
million and the accrual for off-balance sheet credit risk was $11 million. At December 31, 2015, the combined allowance for 
credit losses was $227 million or 1.43% of outstanding loans and 181% of nonaccruing loans, excluding loans guaranteed by 
U.S. Government agencies. The allowance for loan losses was $226 million and the accrual for off-balance sheet credit risk was 
$1.7 million. 

On December 1, 2016, we acquired $492 million of loans in conjunction with the acquisition of Mobank at a fair value of $485 
million. The aggregate discount of $7.1 million included $3.7 million for credit risk. None of the acquired loans were 
considered to be purchase credit impaired loans. No allowance has been attributed to the Mobank loans as of December 31, 
2016. 

The provision for credit losses is the amount necessary to maintain the allowance for loan losses and an accrual for off-balance 
sheet credit risk at an amount determined by management to be appropriate based on its evaluation. The provision includes the 
combined charge or credit to expense for both the allowance for loan losses and the accrual for off-balance sheet credit risk. All 
losses incurred from lending activities will ultimately be reflected in charge-offs against the allowance for loan losses following 
funds advanced against outstanding commitments. After evaluating all credit factors, the Company determined that a $65.0 
million provision for credit losses was necessary due to credit migration in our energy loan portfolio at the beginning of the 
year due to low energy prices. Trends in credit metrics in the latter half of 2016 have continued to show improvement, largely 
driven by energy price stability and decreased rates of newly identified nonaccruing and potential problem loans.

Based on currently available information, our expectations for loan growth, historical credit factors by loan type and other 
qualitative and environmental factors, and including the results of our energy stress testing, discussed in more detail following, 
we estimate a loan loss provision range of $20 million to $30 million may be necessary to maintain an appropriate allowance 
for loan losses and accrual for off-balance sheet credit risk in 2017.

59

Table 23 – Summary of Loan Loss Experience 
(In thousands)

Allowance for loan losses:

Beginning balance

Loans charged off:

Commercial

Commercial real estate

Residential mortgage

Personal

Total

Recoveries of loans previously charged off:

Commercial

Commercial real estate

Residential mortgage

Personal

Total

Net loans recovered (charged off )

Provision for loan losses

Ending balance

Accrual for off-balance sheet credit risk:

Beginning balance

Provision for off-balance sheet credit risk

Ending balance

Total combined provision for credit losses

Allowance for loan losses to loans outstanding at period

end

Net charge-offs (recoveries) to average loans

Total provision for credit losses to average loans

Year Ended December 31,

2016

2015

2014

2013

2012

$ 225,524

$ 189,056

$

185,396

$ 215,507

$ 253,481

(35,828)

—

(1,312)

(5,448)

(6,734)

(944)

(2,205)

(5,288)

(3,569)

(2,047)

(4,448)

(6,168)

(6,335)

(5,845)

(5,753)

(7,349)

(42,588)

(15,171)

(16,232)

(25,282)

1,727

1,283

1,999

2,747

7,756

(34,832)

55,467

2,729

11,079

1,260

3,052

18,120

2,949

33,519

5,703

7,003

2,000

4,328

19,034

2,802

858

7,488

9,420

1,558

4,778

23,244

(2,038)

(28,073)

(9,341)

(11,642)

(10,047)

(11,108)

(42,138)

6,128

5,706

1,928

5,056

18,818

(23,320)

(14,654)

1

$ 246,159

$ 225,524

$

$

$

1,711

9,533

11,244

65,000

$

$

1,230

481

1,711

$ 34,000

$

$

$

$

189,056

$ 185,396

$ 215,507

2,088

(858)

1,230

$

$

1,915

173

2,088

$

$

9,261

(7,346)

1,915

— $

(27,900)

$ (22,000)

1.45%

0.21%

0.40%

1.41 %

(0.02)%

0.23 %

1.33 %

(0.02)%

— %

1.45 %

0.02 %

(0.23)%

91.94 %

1.75 %

0.20 %

(0.19)%

44.66 %

Recoveries to gross charge-offs

18.21%

119.44 %

117.26 %

Allowance for loan losses as a multiple of net charge-

offs

Accrual for off-balance sheet credit risk to off-balance

sheet credit commitments

Combined allowance for credit losses to loans

7.07x

(76.47)x

(67.47)x

90.97x

9.24x

0.11%

0.02 %

0.01 %

0.03 %

0.03 %

outstanding at period-end

1.52%
1  Includes $7.1 million of negative recovery related to a refund of a settlement between BOK Financial and the City of Tulsa invalidated by 
the Oklahoma Supreme Court. Excluding this refund, BOK Financial net charge-offs to average loans was 0.14%, recoveries to gross 
charge-offs were 61.51% and the allowance for loan losses as a multiple of net charge-offs was 13.29x for 2012.

1.34 %

1.47 %

1.77 %

1.43 %

60

 
 
 
Allowance for Loan Losses

The appropriateness of the allowance for loan losses is assessed by management based on an ongoing quarterly evaluation of 
the probable estimated losses inherent in the portfolio. The allowance consists of specific allowances attributed to certain 
impaired loans, general allowances based on estimated loss rates by loan class and non-specific allowances based on general 
economic conditions, concentration in loans with large balances and other relevant factors.

Loans are considered to be impaired when it is probable that we will not collect all amounts due according to the contractual 
terms of the loan agreements. This includes all nonaccruing loans, all loans modified in trouble debt restructurings and all 
government guaranteed loans repurchased from GNMA pools. At December 31, 2016, impaired loans totaled $419 million, 
including $11 million with specific allowances of $843 thousand and $407 million with no specific allowances because the loan 
balances represent the amounts we expect to recover. At December 31, 2015, impaired loans totaled $322 million, including 
$44 million of impaired loans with specific allowances of $16 million and $278 million with no specific allowances. All 
Mobank loans were initially recognized at fair value as of the December 1, 2016 acquisition date. Therefore, no allowance for 
credit losses has been provided. None of the Mobank loans are impaired at December 31, 2016. 

Risk grading guidelines in the OCC Oil and Gas Lending Handbook updated at the beginning of 2016, heavily weight the 
borrowers' ability to repay total debt, regardless of collateral position. This change in grading methodology has increased loans 
especially mentioned, potential problem loans and nonaccruing loans. Because substantially all of our loans to energy 
producers are supported by senior lien positions that, in general, have substantially lower loss exposure, the historical 
relationship between loan credit risk classification and loss exposure has been more difficult to correlate. Our most recently 
completed energy portfolio redetermination supported that $121 million of impaired energy loans required no allowance for 
credit losses based on the adequacy of collateral. In addition, $89 million of impaired energy loans are current on all payments 
due.

General allowances for unimpaired loans are based on an estimated loss rate by loan class. Estimated loss rates for risk-graded 
loans are either increased or decreased based on changes in risk grading for each loan class. Estimated loss rates for both risk-
graded and non-risk graded loans may be further adjusted for inherent risks identified for the given loan class which have not 
yet been captured in the loss rate.

The aggregate amount of general allowances for all unimpaired loans totaled $217 million at December 31, 2016, compared to 
$179 million at December 31, 2015. The general allowance for the commercial loan portfolio segment increased by $25 million 
primarily related to the prolonged low energy price environment. The general allowance for the commercial real estate loan 
portfolio segment increased $9.4 million over December 31, 2015 primarily due to loan growth and the mix of commercial real 
estate loans in the portfolio. The general allowance for residential mortgage loans decreased $1.3 million. The general 
allowance for personal loans increased $4.6 million over the prior year.

Nonspecific allowances are maintained for risks beyond factors specific to a particular portfolio segment or loan class. These 
factors include trends in the economy in our primary lending areas, concentrations in loans with large balances and other 
relevant factors. Nonspecific allowances totaled $28 million at December 31, 2016, compared to $30 million at December 31, 
2015. The nonspecific allowance includes consideration of the indirect impact of the prolonged low energy price environment 
on the broader economies within our geographical footprint that are highly dependent on the energy industry. 

An allocation of the allowance for loan losses by loan category follows in Table 24.

61

Table 24 – Allowance for Loan Losses Allocation 
(Dollars in thousands)

2016

2015

December 31,

2014

2013

2012

Allowance

% of 
Loans1

Allowance

% of 
Loans1

Allowance

% of 
Loans1

Allowance

% of 
Loans1

Allowance

% of 
Loans1

Loan category:

Commercial

$ 140,213

61.16% $ 130,334

64.32% $

90,875

64.02% $

79,180

62.10% $

65,280

62.07%

Commercial
real estate

Residential
mortgage

Personal

Nonspecific
allowance

50,749

22.42%

41,391

20.44%

42,445

19.20%

41,573

18.88%

54,884

18.11%

11.48%

4.94%

18,224

8,773

28,200

19,509

4,164

30,126

11.77%

3.47%

23,458

4,233

28,045

13.72%

3.06%

16.04%

2.98%

29,465

6,965

28,213

41,703

9,453

44,187

16.61%

3.21%

Total

$ 246,159

100.00% $ 225,524

100.00% $ 189,056

100.00% $ 185,396

100.00% $ 215,507

100.00%

1 Represents ratio of loan category balance to total loans.

Our loan monitoring process also identified certain accruing substandard loans, based on regulatory guidelines, that possess 
more than the normal amount of risk due to deterioration in the financial condition of the borrower or the value of the 
collateral. Because the borrowers are still performing in accordance with the original terms of the loan agreements, and no loss 
of principal or interest is anticipated, these loans were not included in nonperforming assets. Known information does, 
however, cause management concern as to the borrowers’ continued ability to comply with current repayment terms. These 
potential problem loans totaled $399 million at December 31, 2016 composed primarily of $308 million or 12% of energy 
loans, $38 million or 1% of services loans, $16 million or less than 1% of healthcare loans, $15 million or 3% of manufacturing 
loans and $13 million or less than 1% of wholesale/retail sector loans. Potential problem loans totaled $155 million at 
December 31, 2015.

Our loan monitoring process also identified loans considered to be "other loans especially mentioned" based on regulatory 
guidelines. Other loans especially mentioned are in compliance with the original terms of the agreement, but may have a 
weakness that deserves management's close attention. Other loans especially mentioned totaled $230 million at December 31, 
2016 and were composed primarily of $120 million or 5% of energy loans, $44 million or 2% of healthcare loans, $27 million 
or 5% of manufacturing loans, $17 million or 1% of wholesale/retail sector loans and $11 million or less than 1% of service 
sector loans. Other loans especially mentioned totaled $386 million at December 31, 2015. 

We updated our energy portfolio stress test at December 31, 2016 to determine how the energy portfolio may respond in a 
prolonged low-price environment. Stress test assumptions included a starting price of $2.00 per million BTUs for natural gas 
and $37.50 per barrel of oil, gradually escalating over seven years to a maximum of $3.00 and $55, respectively. In this 
scenario, the energy portfolio exhibits a greater stress than the Company's fifteen year historical loss rate on energy production 
loans of 18 basis points. The results of the stress test are factored into our expectation that the loan loss provision could range 
from $20 million to $30 million for 2017, based on current observed conditions. The portion of the combined allowance for 
credit losses attributable to the energy portfolio totaled 3.68% of outstanding energy loans at December 31, 2016, compared to 
2.89% of outstanding energy loans at December 31, 2015.

Net Loans Charged Off

Loans are charged off against the allowance for loan losses when the loan balance or a portion of the loan balance is no longer 
covered by the paying capacity of the borrower based on an evaluation of available cash resources and collateral 
value. Internally risk graded loans are evaluated quarterly and charge-offs are taken in the quarter in which the loss is 
identified. Non-risk graded loans are generally charged off when payments are between 60 days and 180 days past due, 
depending on loan class. In addition, non-risk graded loans are generally charged-down to collateral value within 60 days of 
being notified of a borrower's bankruptcy filing, regardless of payment status.

BOK Financial had net loans charged off of $34.8 million or 0.21% of average loans for 2016 compared to a net recovery of 
$2.9 million or (0.02)% of average loans in 2015. 

62

Net commercial loans charged off totaled $34.1 million, primarily from energy loans. Energy loan charge-offs included $21.6 
million from a single borrower due to steeper than expected production declines and higher lease operating expenses. Net 
commercial real estate loan recoveries totaled $1.3 million. Net recoveries of residential mortgage loans totaled $687 thousand 
for the year and net charge-offs of personal loans were $2.7 million.

Table 25 – Nonperforming Assets
(In thousands)

Nonaccruing loans:

Commercial

Commercial real estate

Residential mortgage

Personal

Total nonaccruing loans

Accruing renegotiated loans guaranteed by U.S.

government agencies

Real estate and other repossessed assets:

Guaranteed by U.S. government agencies1
Other

Real estate and other repossessed assets

Total nonperforming assets

Total nonperforming assets excluding those
guaranteed by U.S. government agencies

Nonaccruing loans by loan class:

Commercial:

Energy

Services

Healthcare

Wholesale/retail

Manufacturing

Other

Total commercial

Commercial real estate:

Retail

Multifamily

Office

Industrial

Residential construction and land development

Other commercial real estate

Total commercial real estate

Residential mortgage:

Permanent mortgage

Permanent mortgages guaranteed by U.S.

government agencies

Home equity

Total residential mortgage

Personal

Total nonaccruing loans

2016

2015

2014

2013

2012

December 31,

$

16,760

40,850

42,320

1,219

24,467

60,626

46,608

2,709

101,149

134,410

54,322

38,515

$

178,953

$

76,424

$

5,521

46,220

290

9,001

61,240

463

230,984

147,128

81,370

74,049

—

44,287

44,287

356,641

263,425

—

30,731

30,731

251,908

155,959

$

$

$

$

$

132,499

$

8,173

825

11,407

4,931

21,118

61,189

10,290

1,072

2,919

331

623

$

$

$

$

$

$

$

13,527

18,557

48,121

566

80,771

73,985

49,898

51,963

101,861

256,617

129,022

1,416

5,201

1,380

4,149

450

931

$

$

$

37,431

54,841

92,272

247,743

155,213

1,860

4,922

1,586

6,969

592

831

178,953

76,424

13,527

16,760

326

38

426

76

3,433

1,222

5,521

1,319

274

651

76

4,409

2,272

9,001

22,855

28,984

11,846

11,519

46,220

290

21,900

10,356

61,240

463

3,926

—

3,420

—

5,299

5,912

18,557

34,845

3,712

9,564

48,121

566

4,857

7

6,391

252

17,377

11,966

40,850

34,279

777

7,264

42,320

1,219

$

230,984

$

147,128

$

80,771

$

101,149

$

134,410

63

22,365

81,426

103,791

276,716

215,347

2,460

12,090

3,166

3,077

2,007

1,667

24,467

8,117

2,706

6,829

3,968

26,131

12,875

60,626

39,863

489

6,256

46,608

2,709

 
 
 
 
 
 
 
 
 
 
 
 
Table 25 – Nonperforming Assets
(In thousands)

2016

2015

2014

2013

2012

December 31,

Nonaccruing loans as % of outstanding loan balance for class:

Nonaccruing loans by loan class:

Commercial:

Energy

Services

Healthcare

Wholesale/retail

Manufacturing

Other

Total commercial

Commercial real estate:

Retail

Multifamily

Office

Industrial

Residential construction and land development

Other commercial real estate

Total commercial real estate

Residential mortgage:

Permanent mortgage

Permanent mortgages guaranteed by U.S.

government agencies

Home equity

Total residential mortgage

Personal

Total nonaccruing loans

5.30%

0.26%

0.04%

0.72%

0.96%

4.31%

1.72%

0.04%

—%

0.05%

0.01%

2.53%

0.36%

0.14%

1.98%

0.37%

0.06%

0.21%

0.06%

0.12%

0.75%

0.17%

0.04%

0.10%

0.01%

2.75%

0.65%

0.28%

2.27%

3.07%

5.94%

1.55%

2.37%

0.03%

1.36%

11.12%

1.41%

3.26%

0.08%

0.92%

0.05%

0.22%

0.09%

0.29%

0.08%

0.22%

0.15%

0.59%

—%

0.82%

—%

3.69%

1.60%

0.68%

3.59%

1.80%

1.24%

2.47%

0.13%

0.57%

0.08%

0.22%

0.12%

0.58%

0.15%

0.19%

0.21%

0.83%

—%

1.55%

0.10%

8.42%

3.06%

1.69%

3.23%

0.43%

0.90%

2.06%

0.32%

0.79%

0.10%

0.56%

0.29%

0.28%

0.58%

0.35%

0.32%

1.55%

0.67%

1.60%

1.61%

10.32%

3.42%

2.72%

3.55%

0.30%

0.82%

2.28%

0.68%

1.09%

Allowance for loan losses to nonaccruing loans2
Accruing loans 90 days or more past due2
Foregone interest on nonaccruing loans3
8,587
1  Approximately $50 million was reclassified from Real estate and other repossessed assets to Receivables on the balance sheet on January 

112.33%

180.09%

245.34%

184.71%

15,990

3,925

1,207

1,415

7,432

8,170

5,361

125

$

$

$

5

$

$

160.92%

1, 2015 with the adoption of Financial Accounting Standards Board Update No. 2014-14, Classification of Certain Government-
Guaranteed Mortgage Loans Upon Foreclosure ("ASU 2014-14"). With the implementation of ASU 2014-14, upon foreclosure of loans 
for which the loan balance is expected to be recovered from the guarantee by a U.S. government agency, the loan balance is directly 
reclassified to other receivables without including such foreclosed assets in real estate and other repossessed assets. 

2  Excludes residential mortgages guaranteed by agencies of the U.S. government.
3  Interest collected and recognized on nonaccruing loans was not significant in 2016 and previous years.

Nonperforming assets increased $105 million during 2016 to $357 million or 2.09% of outstanding loans and repossessed 
assets at December 31, 2016. Nonaccruing loans totaled $231 million, accruing renegotiated residential mortgage loans totaled 
$81 million and real estate and other repossessed assets totaled $44 million. All accruing renegotiated residential mortgage 
loans and $12 million of nonaccruing loans are guaranteed by U.S. government agencies. Excluding assets guaranteed by U.S. 
government agencies, nonperforming assets increased $107 million during the year to $263 million or 1.56% of outstanding 
non-guaranteed loans and repossessed assets. The increase was primarily due to nonaccruing energy and other commercial & 
industrial loans, as well as real estate and other repossessed assets from repossession of collateral of certain energy loans. The 
Company generally retains nonperforming assets to maximize potential recovery, which may cause future nonperforming assets 
to decrease more slowly.

64

Loans are generally classified as nonaccruing when it becomes probable that we will not collect the full contractual principal 
and interest. As more fully discussed in Note 4 to the Consolidated Financial Statements, we may modify loans in a troubled 
debt restructuring. Modifications may include extension of payment terms and rate concessions. We generally do not forgive 
principal or accrued but unpaid interest. All loans modified in troubled debt restructurings, except residential mortgage loans 
guaranteed by U.S. government agencies, are classified as nonaccruing. We may renew matured nonaccruing loans. All 
nonaccruing loans, including those renewed or modified in troubled debt restructurings, are charged off when the loan balance 
is no longer covered by the paying capacity of the borrower based on a quarterly evaluation of available cash resources and 
collateral value. All nonaccruing loans generally remain on nonaccruing status until full collection of principal and interest in 
accordance with the original terms, including principal previously charged off, is probable. We generally do not voluntarily 
modify personal loans to troubled borrowers. Personal loans modified at the direction of bankruptcy court orders are identified 
as troubled debt restructurings and classified as nonaccruing. 

As of December 31, 2016, renegotiated loans consist solely of accruing residential mortgage loans guaranteed by U.S. 
government agencies that have been modified in troubled debt restructurings. See Note 4 to the Consolidated Financial 
Statements for additional discussion of troubled debt restructurings. Generally, we modify residential mortgage loans primarily 
by reducing interest rates and extending the number of payments in accordance with U.S. government agency guidelines. No 
unpaid principal or interest is forgiven. Interest continues to accrue based on the modified terms of the loan. Modified loans 
guaranteed by U.S. government agencies under residential mortgage loan programs may be sold once they become eligible 
according to U.S. government agency guidelines. 

A rollforward of nonperforming assets for the year ended December 31, 2016 follows in Table 26.

Table 26 – Rollforward of Nonperforming Assets 
(In thousands)

Balance, December 31, 2015

Additions

Net transfer to premises and equipment

Payments

Charge-offs

Net gains (losses) and write-downs

Foreclosure of nonaccruing loans

Foreclosure of loans guaranteed by U.S. government agencies

Proceeds from sales

Acquisition of Mobank

Net transfers to nonaccruing loans

Return to accrual status

Other, net

Balance, December 31, 2016

Year Ended December 31, 2016

Nonaccruing 
Loans

Renegotiated 
Loans

Real Estate
and Other
Repossessed
Assets

Total
Nonperforming
Assets

$

147,128

$

74,049

$

30,731

$

273,969

—

(97,214)

(42,588)

—

(34,282)

(18,045)

—

—

2,061

(45)

—

46,593

—

(1,808)

—

—

—

(9,471)

(26,384)

—

(2,061)

—

452

—

2,109

—

—

1,108

34,282

—

(25,596)

1,740

—

—

(87)

251,908

320,562

2,109

(99,022)

(42,588)

1,108

—

(27,516)

(51,980)

1,740

—

(45)

365

$

230,984

$

81,370

$

44,287

$

356,641

We foreclose on loans guaranteed by U.S. government agencies in accordance with agency guidelines. Generally these loans 
are not eligible for modification programs or have failed to comply with modified loan terms. Principal is guaranteed by 
agencies of the U.S. government, subject to limitations and credit risk is minimal. At foreclosure, these amounts are transferred 
to claims receivable accounts. These properties will be conveyed to the agencies and receivables collected once applicable 
criteria have been met. 

Nonaccruing loans totaled $231 million or 1.36% of outstanding loans at December 31, 2016 compared to $147 million or 
0.92% of outstanding loans at December 31, 2015. Nonaccruing loans increased $84 million from December 31, 2015. Newly 
identified nonaccruing loans totaled $274 million for 2016, partially offset by $97 million of payments, $43 million of charge-
offs and $34 million of foreclosures.

65

 
 
 
Commercial

Nonaccruing commercial loans totaled $179 million or 1.72% of total commercial loans at December 31, 2016, compared to 
$76 million or 0.75% of total commercial loans at December 31, 2015. Nonaccruing commercial loans increased $103 million 
during 2016. Newly identified nonaccruing commercial loans totaled $225 million, offset by $61 million in payments, $36 
million of charge-offs and $25 million of repossessions.  

Nonaccruing commercial loans at December 31, 2016 were primarily composed of $132 million or 5.30% of total energy loans, 
$21 million or 4.31% of other commercial and industrial loans, $11 million or 0.72% of wholesale/retail loans and $8.2 million 
or 0.26% of total services loans. 

Commercial Real Estate

Nonaccruing commercial real estate loans were $5.5 million or 0.14% of outstanding commercial real estate loans at 
December 31, 2016, down from $9.0 million or 0.28% of outstanding commercial real estate loans at December 31, 2015. The 
$3.5 million decrease was primarily due to $6.8 million of cash payments received, partially offset by $3.4 million of newly 
identified commercial real estate loans during the year. There were no charge-offs or foreclosures of commercial real estate 
loans in 2016.

Nonaccruing commercial real estate loans were composed of $3.4 million or 2.53% of total residential land development and 
construction loans and $1.2 million or 0.36% of total other commercial real estate loans.

Residential Mortgage and Personal

Nonaccruing residential mortgage loans totaled $46 million or 2.37% of outstanding residential mortgage loans at 
December 31, 2016, compared to $61 million or 3.26% of outstanding residential mortgage loans at December 31, 2015. Newly 
identified nonaccruing residential mortgage loans of $39 million were offset by $28 million of cash payments, $26 million of 
foreclosures and $1.3 million of loans charged off during the year. Nonaccruing residential mortgage loans primarily consisted 
of $23 million or 2.27% of non-guaranteed permanent residential mortgage loans and $12 million or 5.94% of permanent 
residential mortgage loans guaranteed by U.S. government agencies. Nonaccruing home equity loans totaled $12 million or 
1.55% of total home equity loans. 

Payments on accruing residential mortgage loans and personal loans may be delinquent. The composition of residential 
mortgage loans and personal loans past due but still accruing is included in the following Table 27. Substantially all non-
guaranteed residential loans past due 90 days or more are nonaccruing. At December 31, 2016, residential mortgage loans 30 to 
59 days past due of $5.6 million were largely unchanged compared to the prior year. Residential mortgage loans 60 to 89 days 
past due increased $901 thousand over December 31, 2015. Personal loans 30 to 59 days past due decreased $76 thousand and 
personal loans 60 to 89 days past due increased $235 thousand compared to December 31, 2015.

Table 27 – Residential Mortgage and Personal Loans Past Due 
(In thousands)

December 31, 2016
60 to 89
Days

90 Days
or More

30 to 59
Days

December 31, 2015

90 Days
or More

60 to 89
Days

30 to 59
Days

Residential mortgage:
   Permanent mortgage1

Home equity

Total residential mortgage

$

$

— $
—
— $

1,280
337
1,617

$

$

3,299
2,276
5,575

Personal
1  Excludes past due residential mortgage loans guaranteed by agencies of the U.S. government.

263

$

5

$

$

589

$

$

$

66

— $
20
20

$

— $

716
716

8

$

28

$

$

3,290
2,379
5,669

665

 
 
 
 
 
 
 
 
 
 
 
Real Estate and Other Repossessed Assets

Real estate and other repossessed assets are assets acquired in partial or total forgiveness of loans. The assets are carried at the 
lower of cost as determined by fair value at date of foreclosure or current fair value, less estimated selling costs.

Real estate and other repossessed assets totaled $44 million at December 31, 2016, a $14 million increase over December 31, 
2015. The distribution of real estate and other repossessed assets distributed primarily by collateral location is included in Table 
28 following.

Table 28 – Real Estate and Other Repossessed Assets by Collateral Location as of December 31, 2016 
(In thousands)

Oklahoma

Texas

Colorado Arkansas

New
Mexico

Arizona

Kansas/
Missouri

Other

Total

Oil and gas properties

$

— $ 25,421

$

— $

— $

— $

— $

— $ — $ 25,421

1-4 family residential

properties

Developed commercial
real estate properties

Undeveloped land

Residential land
development
properties

Vehicles

Total real estate and
other repossessed
assets

4,198

305

—

472

1,927

64

1,350

—

1,305

2,637

—

26

4

—

18

210

—

—

—

—

—

590

—

—

—

780

198

306

499

511

428

8,621

1,296

1,740

2

—

—

—

—

—

4,785

4,701

737

22

$

5,642

$ 27,049

$

2,847

$

472

$

2,517

$

1,783

$

3,549

$

428

$ 44,287

Undeveloped land is primarily zoned for commercial development. Developed commercial real estate properties are primarily 
completed with no additional construction necessary for sale.

67

 
Liquidity and Capital

Based on the average balances for 2016, approximately 65% of our funding was provided by deposit accounts, 21% from 
borrowed funds, 1% from long-term subordinated debt and 10% from equity. Our funding sources, which primarily include 
deposits and borrowings from the Federal Home Loan Banks, provide adequate liquidity to meet our operating needs.

Subsidiary Banks

Deposits and borrowed funds are the primary sources of liquidity for the subsidiary banks. Deposit accounts represent our 
largest funding source. We compete for retail and commercial deposits by offering a broad range of products and services and 
focusing on customer convenience. Retail deposit growth is supported through personal and small business checking, online 
bill paying services, mobile banking services, an extensive network of branch locations and ATMs and our Express Bank call 
center. Commercial deposit growth is supported by offering treasury management and lockbox services. We also acquire 
brokered deposits when the cost of funds is advantageous to other funding sources.

Table 29 - Average Deposits by Line of Business 
(In thousands)

Commercial Banking

Consumer Banking

Wealth Management

Subtotal

Funds Management and other

Total

Year Ended December 31,

2016

2015

$

8,430,507

$

8,773,512

6,632,687

4,867,293

6,668,520

4,573,710

19,930,487

20,015,742

962,086

917,504

$ 20,892,573

$ 20,933,246

Average deposits for 2016 totaled $20.9 billion and represented approximately 65% of total liabilities and capital compared 
with $20.9 billion and 68% of total liabilities and capital for 2015. Average deposits decreased $41 million compared to the 
prior year. Demand deposits grew by $426 million, offset by a $175 million decrease in interest-bearing transaction deposit 
account balances and a $328 million decrease in time deposits. 

Average deposits attributed to Commercial Banking were $8.4 billion for 2016, a decrease of $343 million or 4% compared to 
2015. Decreased interest-bearing transaction account and time deposit balances, were partially offset by growth in demand 
deposit balances. Average balances attributed to our commercial & industrial loan customers decreased $277 million or 6%. 
Average balances attributed to our energy customers decreased $116 million or 8%. Average balances attributed to commercial 
real estate customers were $53 million or 10% lower than in the prior year. Small business banking customer average balances 
increased $66 million or 5% and average balances attributed to our healthcare customers increased $59 million or 9%. 
Commercial customers continue to maintain large cash reserves primarily due to low yields available on other high quality 
investment alternatives and to minimize deposit service charges through the earnings credit. The earnings credit is a non-cash 
method that enables commercial customers to offset deposit service charges based on account balances. Commercial account 
balances may decrease as short-term interest rates rise and commercial customers redeploy cash to better yielding investment 
alternatives. 

Average Consumer Banking deposit balances were largely unchanged compared to the prior year. Average demand deposit 
balances grew by $118 million or 8% and average interest-bearing transaction accounts increased $52 million or 2%. Average 
savings account balances were up $30 million or 8%. Higher costing time deposit balances decreased $235 million or 17%. 
Average Wealth Management deposit balances increased $294 million or 6% over the prior year. Non-interest-bearing demand 
deposits increased $184 million and interest-bearing transaction balances increased $171 million, partially offset by a $64 
million decrease in time deposits. 

The general trend of increased deposits over the past several years reflects modest growth in the overall economy and low 
short-term interest rates. If economic activity were to improve significantly, deposits may decline as customers deploy funds 
into projects. In addition, if short-term interest rates were to increase further, customers could shift deposits from non-interest 
bearing demand deposits into interest-bearing alternatives.  

68

 
Table 30 - Maturity of Domestic CDs and Public
 Funds in Amounts of $100,000 or More
(In thousands)

Months to maturity:

3 or less

Over 3 through 6

Over 6 through 12

Over 12

Total

December 31,

2016

2015

$

$

295,755

$

243,210

315,506

590,981

292,292

206,935

268,894

746,719

1,445,452

$

1,514,840

Brokered deposits included in time deposits averaged $384 million for 2016 compared to $416 million for 2015. Brokered 
deposits included in time deposits totaled $417 million at December 31, 2016 and $358 million at December 31, 2015. 

Average interest-bearing transaction accounts for 2016 included $732 million of brokered deposits compared to $573 million 
for 2015. Brokered deposits included in interest-bearing transaction accounts totaled $1.3 billion at December 31, 2016 and 
$561 million at December 31, 2015. The increase in brokered interest-bearing transaction account balances was primarily due 
to use of a reciprocal program that spreads large customer deposits among participating banks in amounts that qualify FDIC 
insurance. In exchange, we also receive deposits from participating banks in amounts that qualify for FDIC insurance. Our 
increased use of this reciprocal program has enabled us to reduce the amount of deposits we are required to collateralize, 
thereby improving liquidity.

69

The distribution of our period end deposit account balances among principal markets follows in Table 31.

Table 31 -- Period End Deposits by Principal Market Area

(In thousands)

Bank of Oklahoma:

Demand

Interest-bearing:

Transaction

Savings

Time

Total interest-bearing

Total Bank of Oklahoma

Bank of Texas:

Demand

Interest-bearing:

Transaction

Savings

Time

Total interest-bearing

Total Bank of Texas

Bank of Albuquerque:

Demand

Interest-bearing:

Transaction

Savings

Time

Total interest-bearing

2016

2015

2014

2013

2012

December 31,

$

3,993,170

$

4,133,520

$

3,828,819

$ 3,432,940

$

4,207,263

6,345,536

241,696

1,118,355

7,705,587

5,971,819

226,733

1,202,274

7,400,826

6,117,886

6,318,045

206,357

1,301,194

7,625,437

191,880

1,214,507

7,724,432

6,023,384

163,512

1,267,854

7,454,750

11,698,757

11,534,346

11,454,256

11,157,372

11,662,013

3,137,009

2,627,764

2,639,732

2,481,603

2,606,176

2,388,812

2,132,099

2,065,723

1,966,580

2,129,084

83,101

535,642

3,007,555

6,144,564

77,902

549,740

2,759,741

5,387,505

72,037

547,316

2,685,076

5,324,808

64,632

638,465

2,669,677

5,151,280

58,429

762,233

2,949,746

5,555,922

627,979

487,286

487,819

502,395

427,510

590,571

49,963

238,408

878,942

563,723

43,672

267,821

875,216

519,544

37,471

295,798

852,813

529,140

33,944

327,281

890,365

511,758

31,926

364,928

908,612

Total Bank of Albuquerque

1,506,921

1,362,502

1,340,632

1,392,760

1,336,122

Bank of Arkansas:

Demand

Interest-bearing:

Transaction

Savings

Time

Total interest-bearing

Total Bank of Arkansas

26,389

27,252

35,996

38,566

39,897

105,232

2,192

16,696

124,120

150,509

202,857

1,747

24,983

229,587

256,839

158,115

1,936

28,520

188,571

224,567

144,018

1,986

32,949

178,953

217,519

101,868

2,239

42,573

146,680

186,577

70

 
 
Table 31 -- Period End Deposits by Principal Market Area

(In thousands)

Colorado State Bank & Trust:

Demand

Interest-bearing:

Transaction

Savings

Time

Total interest-bearing

2016

2015

2014

2013

2012

December 31,

576,000

497,318

445,755

409,942

336,252

616,679

32,866

242,782

892,327

616,697

31,927

296,224

944,848

631,874

29,811

353,998

1,015,683

1,461,438

541,675

26,880

407,088

975,643

1,385,585

676,144

25,889

472,305

1,174,338

1,510,590

Total Colorado State Bank & Trust

1,468,327

1,442,166

Bank of Arizona:

Demand

Interest-bearing:

Transaction

Savings

Time

Total interest-bearing

Total Bank of Arizona

Bank of Kansas City / Mobank:

Demand

Interest-bearing:

Transaction

Savings

Time

Total interest-bearing

Total Bank of Kansas City / Mobank

366,755

326,324

369,115

204,092

161,093

305,099

2,973

27,765

335,837

702,592

358,556

2,893

29,498

390,947

717,271

347,214

2,545

36,680

386,439

755,554

364,736

2,432

34,391

401,559

605,651

360,276

1,978

31,371

393,625

554,718

508,418

197,424

259,121

246,739

260,095

513,176

12,679

42,152

568,007

1,076,425

153,203

1,378

35,524

190,105

387,529

273,999

1,274

45,210

320,483

579,604

69,857

1,252

41,312

112,421

359,160

85,524

771

26,728

113,023

373,118

Total BOK Financial deposits

$

22,748,095

$

21,088,158

$ 21,140,859

$ 20,269,327

$

21,179,060

See Note 9 to the Consolidated Financial Statements for a summary of other borrowings.

In addition to deposits, liquidity for the subsidiary banks is provided primarily by federal funds purchased, securities 
repurchase agreements and Federal Home Loan Bank borrowings. Federal funds purchased consist primarily of unsecured, 
overnight funds acquired from other financial institutions. Funds are primarily purchased from bankers’ banks and Federal 
Home Loan banks from across the country. The largest single source of wholesale federal funds purchased totaled $12 million 
at December 31, 2016. Securities repurchase agreements generally mature within 90 days and are secured by certain available 
for sale securities. Federal Home Loan Bank borrowings are generally short term and are secured by a blanket pledge of 
eligible collateral (generally unencumbered U.S. Treasury and mortgage-backed securities, 1-4 family residential mortgage 
loans, multifamily and other qualifying commercial real estate loans). Amounts borrowed from the Federal Home Loan Bank of 
Topeka averaged $6.0 billion during 2016 and $4.9 billion during 2015.

At December 31, 2016, the estimated unused credit available to the subsidiary banks from collateralized sources was 
approximately $5.1 billion.

71

In 2007, BOKF, NA issued $250 million of subordinated debt due May 15, 2017 to fund the Worth National Bank and First 
United Bank acquisitions and fund continued asset growth. Interest on this debt was based on a fixed rate of 5.75% through 
May 14, 2012 which then converted to a floating rate of three-month LIBOR plus 0.69%. The $227 million that remained 
outstanding at December 31, 2015 was called during 2016. 

BOKF, NA also has a liability related to the repurchase of certain delinquent residential mortgage loans previously sold in 
GNMA mortgage pools. Interest is payable monthly at rates contractually due to investors.

Parent Company and Other Non-Bank Subsidiaries

The primary sources of liquidity for BOK Financial are cash on hand and dividends from the subsidiary banks. Cash on hand at 
December 31, 2016 totaled $163 million. Dividends from the subsidiary banks are limited by various banking regulations to net 
profits, as defined, for the year plus retained profits for the two preceding years. Dividends are further restricted by minimum 
capital requirements. At December 31, 2016, based on the most restrictive limitations as well as management’s internal capital 
policy, BOKF, NA could declare up to $171 million of dividends without regulatory approval. Dividend constraints may be 
alleviated through increases in retained earnings, capital issuances or changes in risk weighted assets. Future losses or increases 
in required regulatory capital could also affect its ability to pay dividends to the parent company. 

On June 27, 2016, the parent company issued $150 million of subordinated debt that will mature on June 30, 2056. This debt 
bears interest at the rate of 5.375%, payable quarterly. On June 30, 2021, we will have the option to redeem the debt at the 
principal amount plus accrued interest, subject to regulatory approval.

Shareholders' equity at December 31, 2016 was $3.3 billion, an increase of $44 million over December 31, 2015. Net income 
less cash dividends paid increased equity $119 million during 2016. Changes in interest rates resulted in an accumulated other 
comprehensive loss of $11 million at December 31, 2016, compared to an accumulated other comprehensive gain of $22 
million at December 31, 2015. The Company also repurchased $67 million of our common stock during 2016. We also 
deployed $103 million of capital to acquire all of the outstanding stock of MBT Bancshares, Inc. in an all cash deal. Capital is 
managed to maximize long-term value to the shareholders. Factors considered in managing capital include projections of future 
earnings, asset growth and acquisition strategies, and regulatory and debt covenant requirements. Capital management may 
include subordinated debt issuance, share repurchase and stock and cash dividends.

On October 27, 2015, the board of directors authorized the Company to purchase up to five million common shares, subject to 
market conditions, securities laws and other regulatory compliance limitations. As of December 31, 2016, a cumulative total of 
2,879,243 shares have been repurchased under this authorization. The Company repurchased 1,005,169 shares during 2016 at 
an average price of $66.45 per share.

BOK Financial and the subsidiary banks are subject to various capital requirements administered by federal agencies. Failure to 
meet minimum capital requirements can result in certain mandatory and additional discretionary actions by regulators that 
could have a material impact on operations. These capital requirements include quantitative measures of assets, liabilities and 
off-balance sheet items. The capital standards are also subject to qualitative judgments by the regulators.

Effective January 1, 2015, capital rules establish a 7% threshold for the common equity Tier 1 ratio consisting of a minimum 
level plus capital conservation buffer. The Company has elected to exclude unrealized gains and losses from available for sale 
securities from its calculation of Tier 1 capital, consistent with the treatment under previous capital rules. Components of the 
capital rules effective January 1, 2015 will phase in through January 1, 2019. 

A summary of minimum capital requirements, including capital conservation buffer follows in Table 32. Failure to meet these 
minimum capital requirements, including capital conservation buffer, could subject BOK Financial to regulatory restrictions on 
capital distributions (including but not limited to dividends and share repurchases) and executive bonus payments. 

The capital ratios for BOK Financial on a consolidated basis are presented in Table 32 following.

72

Table 32 – Capital Ratios 

Risk-based capital:

Common equity Tier 1

Tier 1 capital

Total capital

Tier 1 Leverage

Average total equity to average assets

Tangible common equity ratio
1  Effective January 1, 2016

Minimum
Capital
Requirement

Capital 
Conservation 
Buffer1

Minimum
Capital
Requirement
Including
Capital
Conservation
Buffer

4.50%

6.00%

8.00%

4.00%

2.50%

2.50%

2.50%

N/A

7.00%

8.50%

10.50%

4.00%

December 31,

2016

2015

11.21%

11.21%

12.81%

8.72%

10.38%

8.61%

12.13%
12.13%

13.30%

9.25%

11.03%

9.02%

Capital resources of financial institutions are also regularly measured by the tangible common shareholders’ equity 
ratio. Tangible common shareholders’ equity is shareholders’ equity as defined by generally accepted accounting principles in 
the United States of America (“GAAP”), including unrealized gains and losses on available for sale securities, less intangible 
assets and equity which does not benefit common shareholders. Equity that does not benefit common shareholders includes 
preferred equity. This non-GAAP measure is a valuable indicator of a financial institution’s capital strength since it eliminates 
intangible assets from shareholders’ equity and retains the effect of unrealized losses on securities and other components of 
accumulated other comprehensive income in shareholders’ equity.

Table 33 following provides a reconciliation of the non-GAAP measures with financial measures defined by GAAP.

Table 33 – Non-GAAP Measures 
(Dollars in thousands)

Tangible common equity ratio:
Total shareholders' equity
Less: Goodwill and intangible assets, net
Tangible common equity
Total assets
Less: Goodwill and intangible assets, net
Tangible assets
Tangible common equity ratio

December 31,

2016

2015

$ 3,274,854
495,830
2,779,024
32,772,281
495,830
$ 32,276,451

$ 3,230,556
429,370
2,801,186
31,476,128
429,370
$ 31,046,758

8.61%

9.02%

On October 20, 2016, BOK Financial published the results of its annual capital stress test. In accordance with the Dodd-Frank 
Act, the Federal Reserve must publish regulations that require bank holding companies with $10 billion to $50 billion in assets 
to perform annual capital stress tests. The requirements for annual capital stress tests became effective for the Company in the 
fourth quarter of 2013. The Dodd-Frank Act Stress Test ("DFAST") is a forward-looking exercise under which the Company 
and its banking subsidiary estimate the impact of a hypothetical severely adverse macroeconomic scenario provided by the 
Federal Reserve and Office of the Comptroller of the Currency on its financial condition and regulatory capital ratios over a 
nine-quarter time horizon. Under the scenario provided by the regulatory agencies, all capital ratio measures remain above 
minimum regulatory thresholds. Additional information concerning the annual stress test may be found on the Company's 
Investor Relations page at www.bokf.com under the "Presentations" tab. The results of future capital stress tests may place 
constraints on capital distributions or increases in required regulatory capital under certain circumstances. 

73

 
 
 
Off-Balance Sheet Arrangements

See Note 14 to the Consolidated Financial Statements for a discussion of the Company’s significant off-balance sheet 
commitments.

Aggregate Contractual Obligations

BOK Financial has numerous contractual obligations in the normal course of business. These obligations include time deposits 
and other borrowed funds, premises used under various operating leases, commitments to extend credit to borrowers and to 
purchase securities, derivative contracts and contracts for services such as data processing that are integral to our operations. 
Table 34 following summarizes payments due on contractual obligations with initial terms in excess of one year. 

Table 34 – Contractual Obligations as of December 31, 2016
(In thousands)

Time deposits

Other borrowings

Subordinated debentures

Operating lease obligations

Derivative contracts

Data processing services

Tax credit purchase commitment

Less Than 
1 Year

1 to 3
Years

4 to 5
Years

More Than
5 Years

Total

$

624,375

$

417,589

$

216,275

$

407,939

$

1,666,178

724

8,063

22,502

9,864

15,687

3,700

1,924

16,125

39,734

12,939

19,733

—

2,168

16,125

29,577

11,165

1,320

—

22,857

422,796

56,818

8,721

605

—

27,673

463,109

148,631

42,689

37,345

3,700

Total

$

684,915

$

508,044

$

276,630

$

919,736

$

2,389,325

Loan commitments

Standby letters of credit

Mortgage loans sold with recourse

Alternative investment commitments

Unfunded third-party private equity commitments

$

9,404,665

585,472

139,486

78,357

2,594

Payments on time deposits, other borrowed funds and subordinated debentures include interest which has been calculated from 
rates at December 31, 2016. These obligations may have variable interest rates and actual payments will differ from the 
amounts shown on this table. 

Payments on time deposits are based on contractual maturity dates. These funds may be withdrawn prior to maturity. We may 
charge the customer a penalty for early withdrawal.

Operating lease commitments generally represent real property we rent for branch offices, corporate offices and operations 
facilities. Payments presented represent the minimum lease payments and exclude related costs such as utilities and property 
taxes.

Obligations under derivative contracts are used in customer hedging programs. As previously discussed, we have entered into 
derivative contracts which are expected to substantially offset the cash payments due on these obligations. 

We also have obligations with respect to employee benefit plans. See Note 11 to the Consolidated Financial Statements for 
additional information about our employee benefit plans.

Data processing and communications contracts represent the minimum obligations under the contracts. Additional payments 
that are based on the volume of transactions processed are excluded.

Loan commitments represent legally binding obligations to provide financing to our customers. Some of these commitments 
are expected to expire before being drawn upon and the total commitment amounts do not necessarily represent future cash 
requirements. Approximately $1.4 billion of the loan commitments expire within one year.

74

The Company has funded $174 million and has commitments to fund an additional $78 million for various alternative 
investments. Alternative investments generally consist of limited partnership interests in or loans to entities that invest in low 
income housing or economic development projects, distressed assets, energy development, venture capital and other 
activities. The Company is prohibited by banking regulations from controlling or actively managing the activities of these 
investments. Legally binding commitments to fund alternative investments are recognized as liabilities in the consolidated 
financial statements.

An indirect wholly-owned subsidiary of the Company is general partner of two private equity funds and has contingent 
obligations to make additional investments totaling $2.6 million as of December 31, 2016. These commitments, which are 
included in unfunded third-party private equity commitments, generally reflect customer investment obligations. We do not 
recognize contingent commitments to fund investments that are primarily customer obligations as liabilities in the consolidated 
financial statements.

Recently Issued Accounting Standards

See Note 1 of the consolidated financial statements for disclosure of newly adopted and pending accounting standards.

Forward-Looking Statements

This report contains forward-looking statements that are based on management's beliefs, assumptions, current expectations, 
estimates, and projections about BOK Financial, the financial services industry and the economy in general. Words such as 
“anticipates,” “believes,” ”estimates,” “expects,” “forecasts,” “plans,” “projects,” “will,” “intends,” variations of such words 
and similar expressions are intended to identify such forward-looking statements. Management judgments relating to and 
discussion of the provision and allowance for loan losses and accrual for off-balance sheet credit risk, allowance for uncertain 
tax positions, accruals for loss contingencies and valuation of mortgage servicing rights involve judgments as to expected 
events and are inherently forward-looking statements. Assessments that BOK Financial's acquisitions and other growth 
endeavors will be profitable are necessary statements of belief as to the outcome of future events, based in part on information 
provided by others that BOK Financial has not independently verified. These statements are not guarantees of future 
performance and involve certain risks, uncertainties and assumptions that are difficult to predict with regard to timing, extent, 
likelihood and degree of occurrence. Therefore, actual results and outcomes may materially differ from what is expressed, 
implied, or forecasted in such forward-looking statements. Internal and external factors that might cause such a difference 
include, but are not limited to changes in commodity prices, interest rates and interest rate relationships, demand for products 
and services, the degree of competition by traditional and nontraditional competitors, changes in banking regulations, tax laws, 
prices, levies, and assessments, the impact of technological advances and trends in customer behavior as well as their ability to 
repay loans. BOK Financial and its affiliates undertake no obligation to update, amend, or clarify forward-looking statements, 
whether as a result of new information, future events or otherwise.

Legal Notice

As used in this report, the term “BOK Financial” and such terms as “the Company,” “the Corporation,” “our,” “we” and “us” 
may refer to one or more of the consolidated subsidiaries or all of them taken as a whole. All these terms are used for 
convenience only and are not intended as a precise description of any of the separate companies, each of which manages its 
own affairs.

75

ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Market Risk

Market risk is a broad term for the risk of economic loss due to adverse changes in the fair value of a financial 
instrument. These changes may be the result of various factors, including interest rates, foreign exchange rates, commodity 
prices or equity prices. Financial instruments that are subject to market risk can be classified either as held for trading or held 
for purposes other than trading. Market risk excludes changes in fair value due to credit of the individual issuers of financial 
instruments.

BOK Financial is subject to market risk primarily through the effect of changes in interest rates on both its assets held for 
purposes other than trading and trading assets. The effects of other changes, such as foreign exchange rates, commodity prices 
or equity prices do not pose significant market risk to BOK Financial. BOK Financial has no material investments in assets that 
are affected by changes in foreign exchange rates or equity prices. Energy and agricultural product derivative contracts, which 
are affected by changes in commodity prices, are matched against offsetting contracts as previously discussed.

The Asset/Liability Committee is responsible for managing market risk in accordance with policy limits established by the 
Board of Directors. The Committee monitors projected variation in net interest revenue, net interest income and economic 
value of equity due to specified changes in interest rates. These limits also set maximum levels for short-term borrowings, 
short-term assets, public funds and brokered deposits and establish minimum levels for unpledged assets, among other things.  
Further, the Board approved market risk limits for fixed income trading, mortgage pipeline and mortgage servicing assets 
inclusive of economic hedge benefits. Compliance is reviewed monthly. Deviations from the Board approved limits require 
Board escalation and approval.

The simulations used to manage market risk are based on numerous assumptions regarding the effects of changes in interest 
rates on the timing and extent of re-pricing characteristics, future cash flows and customer behavior. These assumptions are 
inherently uncertain and, as a result, models cannot precisely estimate or precisely predict the impact of higher or lower interest 
rates. Actual results will differ from simulated results due to timing, magnitude and frequency of interest rate changes, market 
conditions and management strategies, among other factors.

Interest Rate Risk – Other than Trading

As previously noted in the Net Interest Revenue section of this report, management has implemented strategies to manage the 
Company’s balance sheet to have relatively limited exposure to changes in interest rates over a twelve-month period. The 
effectiveness of these strategies in managing the overall interest rate risk is evaluated through the use of an asset/liability 
model. BOK Financial performs a sensitivity analysis to identify more dynamic interest rate risk exposures, including 
embedded option positions, on net interest revenue. A simulation model is used to estimate the effect of changes in interest rates 
on our performance across multiple interest rate scenarios. While the current internal policy limit for net interest revenue 
variation is a maximum decline of 5% due to a 200 basis point change in market interest rates over twelve months, the results 
of a 200 basis point decrease in interest rates in the current low-rate environment are not meaningful. We report the effect of a 
50 basis point decrease in the interim.

The Company’s primary interest rate exposures include the Federal Funds rate, which affects short-term borrowings, and the 
prime lending rate and LIBOR, which are the basis for much of the variable rate loan pricing. Additionally, residential 
mortgage rates directly affect the prepayment speeds for residential mortgage-backed securities and mortgage servicing 
rights. Derivative financial instruments and other financial instruments used for purposes other than trading are included in this 
simulation. In addition, the impact on the level and composition of demand deposit accounts and other core deposit balances 
resulting from a significant increase in short-term market interest rates and the overall interest rate environment is likely to be 
material. The simulation incorporates assumptions regarding the effects of such changes based on a combination of historical 
analysis and expected behavior. The impact of planned growth and new business activities is factored into the simulation 
model. 

76

 
 
Table 35 – Interest Rate Sensitivity
(Dollar in thousands)

200 bp Increase

50 bp Decrease

2016

2015

2016

2015

Anticipated impact over the next twelve months on net interest revenue

$

(4,932)

$

(7,576)

$ (18,021)

$

(22,501)

(0.60)%

(0.97)%

(2.19)%

(2.87)%

BOK Financial is also subjected to market risk through changes in the fair value of mortgage servicing rights. Changes in the fair 
value of mortgage servicing rights are highly dependent on changes in primary mortgage rates offered to borrowers, intermediate-
term interest rates that affect the value of custodial funds, and assumptions about servicing revenues, servicing costs and discount 
rates. As primary mortgage rates increase, prepayment speeds slow and the value of our mortgage servicing rights increases. As 
primary mortgage rates fall, prepayment speeds increase and the value of our mortgage servicing rights decreases.

We maintain a portfolio of financial instruments, which may include residential mortgage-backed securities issued by U.S. 
government agencies, U.S. Treasury securities and interest rate derivative contracts held as an economic hedge of the changes 
in the fair value of our mortgage servicing rights. Composition of this portfolio will change based on our assessment of market 
risk. Changes in the fair value of residential mortgage-backed securities are highly dependent on changes in secondary 
mortgage rates required by investors, and interest rate derivative contracts are highly dependent on changes in other market 
interest rates. While primary and secondary mortgage rates generally move in the same direction, the spread between them may 
widen and narrow due to market conditions and government intervention. Changes in the forward-looking spread between the 
primary and secondary rates can cause significant earnings volatility. 

Management performs a stress test to measure market risk due to changes in interest rates inherent in its MSR portfolio and 
hedges. The stress test shocks applicable interest rates up and down 50 basis points and calculates an estimated change in fair 
value, net of economic hedging activity that may result. The Board has approved a $20 million market risk limit for mortgage 
servicing rights, net of economic hedges. 

Table 36 - MSR Asset and Hedge Sensitivity Analysis 
(In thousands)

Average

Low

High

Period End

Trading Activities

Year Ended December 31

2016

2015

Up 50 bp

Down 50 bp

Up 50 bp

Down 50 bp

$

(1,756) $

(11,150) $

431

$

(14,461)

12,963

(1,750)

(24,758)

9,267

(2,724)

(2,700)

5,775

809

(907)

(4,080)

1,327

292

The Company bears market risk by originating residential mortgages held for sale (RMHFS). RMHFS are generally 
outstanding for 60 to 90 days which represents the typical period from commitment to originate a loan to sale of the closed loan 
to an investor. Primary mortgage interest rate changes during this period affect the value of RMHFS commitments and loans. 
We use forward sale contracts to mitigate market risk on all closed mortgage loans held for sale and on an estimate of mortgage 
loan commitments that are expected to result in closed loans. 

A variety of methods are used to monitor market risk of mortgage origination activities. These methods include daily marking 
of all positions to market value, independent verification of inventory pricing, and revenue sensitivity limits. 

Management performs a stress test to measure market risk due to changes in interest rates inherent in the mortgage production 
pipeline. The stress test shocks applicable interest rates up and down 50 basis points and calculates an estimated change in fair 
value, net of economic hedging activity that may result. The Board has approved a $7 million market risk limit for the 
mortgage production pipeline, net of forward sale contracts. 

77

 
 
 
 
Table 37  - Mortgage Pipeline Sensitivity Analysis 
(In thousands)

Average

Low

High

Period End

Year Ended December 31

2016

2015

Up 50 bp

Down 50 bp

Up 50 bp

Down 50 bp

$

(1,840) $

(583) $

(2,967) $

(6,858)

2,037

602

(2,953)

1,815

(1,158)

(6,590)

(998)

(2,036)

(1,932)

(4,351)

1,483

(1,951)

BOK Financial enters into trading activities both as an intermediary for customers and for its own account. As an intermediary, 
we take positions in securities, generally residential mortgage-backed securities, government agency securities and municipal 
bonds. These securities are purchased for resale to customers, which include individuals, corporations, foundations and 
financial institutions. On a limited basis, we may also take trading positions in U.S. Treasury securities, residential mortgage-
backed securities, and municipal bonds to enhance returns on its securities portfolios. Both of these activities involve interest 
rate, liquidity and price risk. BOK Financial has an insignificant exposure to foreign exchange risk and does not take positions 
in commodity derivatives.

A variety of methods are used to monitor the interest rate risk of trading activities. These methods include daily marking of all 
positions to market value, independent verification of inventory pricing, and position limits for each trading activity. Economic 
hedges in either the futures or cash markets may be used to reduce the risk associated with some trading programs.

Management performs a stress test to measure market risk from changes in interest rates on its trading portfolio. The stress test 
shocks applicable interest rates up and down 50 basis points and calculates an estimated change in fair value, net of economic 
hedging activity that may result. The Board has approved a $8 million market risk limit for the trading portfolio, net of 
economic hedges. 

Table 38 –BOKFS Trading Sensitivity Analysis 
(In thousands)

Average

Low

High

Period End

Year Ended December 31

2016

2015

Up 50 bp

Down 50 bp

Up 50 bp

Down 50 bp

$

(3,150) $

3,196

$

(1,767) $

(6,130)

146

1,212

(107)

7,013

(734)

(4,727)

437

865

1,703

(446)

4,728

(1,157)

78

 
 
ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Report of Management on Internal Control over Financial Reporting

Management of BOK Financial Corporation is responsible for establishing and maintaining adequate internal control over 
financial reporting and for assessing the effectiveness of internal control over financial reporting, as such term is defined in 
Exchange Act Rules 13a-15(f) and 15d-15(f), as amended. Management has assessed the effectiveness of the Company’s 
internal control over financial reporting based on the criteria established in “Internal Control – Integrated Framework,” issued 
by the Committee of Sponsoring Organizations (“COSO”) of the Treadway Commission in 2013. Based on that assessment and 
criteria, management has determined that the Company maintained effective internal control over financial reporting as of 
December 31, 2016.

As permitted, management excluded from its assessment the operations of Missouri Bank and Trust Company which was 
acquired on December 1, 2016. As described in Note 6 to the Consolidated Financial Statements, assets acquired and excluded 
from management's assessment of internal control over financial reporting comprised approximately 2% of consolidated assets 
at December 31, 2016.

Ernst & Young LLP, the independent registered public accounting firm that audited the consolidated financial statements of the 
Company included in this annual report has issued an audit report on the effectiveness of the Company’s internal control over 
financial reporting as of December 31, 2016. Their report, which expresses unqualified opinion on the effectiveness of the 
Company’s internal control over financial reporting as of December 31, 2016, is included in this annual report.

79

Report of Ernst & Young LLP, Independent Registered Public Accounting Firm

The Board of Directors and Shareholders of BOK Financial Corporation

We have audited BOK Financial Corporation’s ("the Company") internal control over financial reporting as of December 31, 
2016, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring 
Organizations of the Treadway Commission (2013 framework) (the COSO criteria). BOK Financial Corporation’s management 
is responsible for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of 
internal control over financial reporting included in the accompanying Report of Management on Internal Control over 
Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting 
based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). 
Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal 
control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of 
internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and 
operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered 
necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the 
reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally 
accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures 
that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and 
dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit 
preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and 
expenditures of the company are being made only in accordance with authorizations of management and directors of the 
company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or 
disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, 
projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate 
because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

As indicated in the accompanying Report of Management on Internal Control over Financial Reporting, management’s assessment 
of and conclusion on the effectiveness of internal control over financial reporting did not include the internal controls of Missouri 
Bank and Trust of Kansas City (“Mobank”), which is included in the 2016 consolidated financial statements of the BOK Financial 
Corporation and constituted $749 million and $125 million of total and net assets, respectively, as of December 31, 2016 and $2 
million and $124 thousand of revenues and net income, respectively, for the year then ended. Our audit of internal control over 
financial reporting of BOK Financial Corporation also did not include an evaluation of the internal control over financial reporting 
of Mobank. 

In our opinion, BOK Financial Corporation maintained, in all material respects, effective internal control over financial 
reporting as of December 31, 2016, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), 
the consolidated balance sheets of BOK Financial Corporation as of December 31, 2016 and 2015, and the related consolidated 
statements of earnings, comprehensive income, changes in equity, and cash flows for each of the three years in the period ended 
December 31, 2016 and our report dated February 28, 2017 expressed an unqualified opinion thereon.

/s/ Ernst & Young LLP

Tulsa, Oklahoma
February 28, 2017 

80

Report of Ernst & Young LLP, Independent Registered Public Accounting Firm

The Board of Directors and Shareholders of BOK Financial Corporation

We have audited the accompanying consolidated balance sheets of BOK Financial Corporation ("the Company") as of 
December 31, 2016 and 2015, and the related consolidated statements of earnings, comprehensive income, changes in equity, 
and cash flows for each of the three years in the period ended December 31, 2016. These financial statements are the 
responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on 
our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). 
Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial 
statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and 
disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates 
made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a 
reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial 
position of BOK Financial Corporation at December 31, 2016 and 2015, and the consolidated results of its operations and its 
cash flows for each of the three years in the period ended December 31, 2016, in conformity with U.S. generally accepted 
accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United 
States), BOK Financial Corporation's internal control over financial reporting as of December 31, 2016, based on criteria 
established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway 
Commission (2013 framework) and our report dated February 28, 2017 expressed an unqualified opinion thereon.

/s/ Ernst & Young LLP

Tulsa, Oklahoma
February 28, 2017 

81

Consolidated Statements of Earnings

(In thousands, except share and per share data)

Interest and dividend revenue
Loans
Residential mortgage loans held for sale
Trading securities
Investment securities
Available for sale securities
Fair value option securities
Restricted equity securities
Interest-bearing cash and cash equivalents

Total interest and dividend revenue

Interest expense
Deposits
Borrowed funds
Subordinated debentures
Total interest expense

Net interest and dividend revenue
Provision for credit losses
Net interest and dividend revenue after provision for credit losses
Other operating revenue
Brokerage and trading revenue
Transaction card revenue
Fiduciary and asset management revenue
Deposit service charges and fees
Mortgage banking revenue
Other revenue
Total fees and commissions
Other gains, net
Gain (loss) on derivatives, net
Gain (loss) on fair value option securities, net
Change in fair value of mortgage servicing rights
Gain on available for sale securities, net
Total other-than-temporary impairment losses
Portion of loss recognized in other comprehensive income
Net impairment losses recognized in earnings
Total other operating revenue
Other operating expense
Personnel
Business promotion
Charitable contributions to BOKF Foundation
Professional fees and services
Net occupancy and equipment
Insurance
Data processing and communications
Printing, postage and supplies
Net losses and operating expenses of repossessed assets
Amortization of intangible assets
Mortgage banking costs
Other expense
Total other operating expense
Net income before taxes
Federal and state income taxes
Net income
Net income (loss) attributable to non-controlling interests
Net income attributable to BOK Financial Corporation shareholders
Earnings per share:

Basic
Diluted

Average shares used in computation:

Basic
Diluted

Dividends declared per share

See accompanying notes to consolidated financial statements.

82

Year Ended December 31,
2015

2014

2016

$

$

$
$

$

581,030
12,658
8,527
16,894
175,321
6,723
17,238
10,726
829,117

40,494
35,336
6,059
81,889
747,228
65,000
682,228

138,377
135,758
135,477
92,193
133,914
51,029
686,748
4,030
(15,685)
(10,555)
(2,193)
11,675
—
—
—
674,020

553,119
26,582
2,000
56,783
80,024
32,489
131,841
15,584
3,359
6,862
61,387
47,560
1,017,590
338,658
106,377
232,281
(387)
232,668

3.53
3.53

65,085,627
65,143,898
1.73

$

$

$
$

$

529,683
13,602
2,240
18,098
174,829
9,264
13,532
5,580
766,828

44,170
14,204
5,100
63,474
703,354
34,000
669,354

129,556
128,621
126,153
90,431
126,002
49,883
650,646
5,702
430
(3,684)
(4,853)
12,058
(2,443)
624
(1,819)
658,480

515,298
27,851
796
40,123
76,016
20,375
122,383
13,498
1,446
4,359
38,813
35,233
896,191
431,643
139,384
292,259
3,694
288,565

4.22
4.21

67,594,689
67,691,658
1.69

$

$

$
$

$

502,753
10,143
1,945
18,891
185,107
3,611
7,040
2,749
732,239

50,683
7,672
8,690
67,045
665,194
—
665,194

134,437
123,689
115,652
90,911
109,093
47,537
621,319
2,953
2,776
10,189
(16,445)
1,539
(373)
—
(373)
621,958

476,931
26,649
4,267
44,440
77,232
18,578
115,225
13,518
6,019
3,965
31,705
28,993
847,522
439,630
144,151
295,479
3,044
292,435

4.23
4.22

68,394,194
68,544,770
1.62

Consolidated Statements of Comprehensive Income

(In thousands)

Net income

Other comprehensive income (loss) before income taxes:

Net change in unrealized gain (loss)

Reclassification adjustments included in earnings:

Interest revenue, Investment securities, Taxable securities

Interest expense, Subordinated debentures

Net impairment losses recognized in earnings

Gain on available for sale securities, net

Other comprehensive income (loss), before income taxes

Federal and state income taxes

Other comprehensive income (loss), net of income taxes

Comprehensive income

Comprehensive income (loss) attributable to non-controlling interests

Year Ended December 31,

2016

2015

2014

$

232,281

$

292,259

$

295,479

(41,521)

(46,803)

136,775

(112)

—

—

(11,675)

(53,308)

(20,754)

(32,554)

(503)

121

1,819

(12,058)

(57,424)

(22,338)

(35,086)

(1,216)

296

373

(1,539)

134,689

52,393

82,296

199,727

257,173

377,775

(387)

3,694

3,044

Comprehensive income attributable to BOK Financial Corp. shareholders

$

200,114

$

253,479

$

374,731

See accompanying notes to consolidated financial statements.

83

 
 
 
 
 
 
Consolidated Balance Sheets

(In thousands, except share data)

Assets
Cash and due from banks
Interest-bearing cash and cash equivalents
Trading securities
Investment securities (fair value:  2016 – $565,493; 2015 – $629,159)
Available for sale securities
Fair value option securities
Restricted equity securities
Residential mortgage loans held for sale
Loans
Allowance for loan losses
Loans, net of allowance
Premises and equipment, net
Receivables
Goodwill
Intangible assets, net
Mortgage servicing rights
Real estate and other repossessed assets, net of allowance (2016 – $9,562; 2015 – $12,622)
Derivative contracts
Cash surrender value of bank-owned life insurance
Receivable on unsettled available for sale securities sales
Other assets

Total assets

Liabilities and Equity
Liabilities:
Noninterest-bearing demand deposits
Interest-bearing deposits:

Transaction
Savings
Time
Total deposits
Funds purchased
Repurchase agreements
Other borrowings
Subordinated debentures
Accrued interest, taxes and expense
Derivative contracts
Due on unsettled available for sale securities purchases
Other liabilities

Total liabilities
Shareholders' equity:
Common stock ($.00006 par value; 2,500,000,000 shares authorized; shares issued and outstanding: 2016 – 

74,993,407; 2015 – 74,530,364)

Capital surplus
Retained earnings
Treasury stock (shares at cost:  2016 – 9,655,975; 2015 – 8,636,332)
Accumulated other comprehensive income (loss)

Total shareholders’ equity

Non-controlling interests
Total equity
Total liabilities and equity

See accompanying notes to consolidated financial statements.

84

December 31,

2016

2015

620,846
1,916,651
337,628
546,145
8,676,829
77,046
307,240
301,897
16,989,660
(246,159)
16,743,501
325,849
772,952
448,899
46,931
247,073
44,287
689,872
308,430
7,188
353,017
32,772,281

$

$

573,699
2,069,900
122,404
597,836
9,042,733
444,217
273,684
308,439
15,941,154
(225,524)
15,715,630
306,490
163,480
385,461
43,909
218,605
30,731
586,270
303,335
40,193
249,112
31,476,128

9,235,720

$

8,296,888

10,865,105
425,470
2,221,800
22,748,095
57,929
668,661
4,846,072
144,640
146,704
664,531
6,508
182,784
29,465,924

9,998,954
386,252
2,406,064
21,088,158
491,192
722,444
4,837,879
226,350
119,584
581,701
16,897
124,284
28,208,489

4

1,006,535
2,823,334
(544,052)
(10,967)
3,274,854
31,503
3,306,357
32,772,281

$

4

982,009
2,704,121
(477,165)
21,587
3,230,556
37,083
3,267,639
31,476,128

$

$

$

$

 
 
 
 
 
 
 
 
Consolidated Statements of Changes in Equity

(In thousands)

Common Stock

Shares

Amount

Capital
Surplus

Retained
Earnings

Treasury Stock

Shares

Amount

Accumulated
Other
Comprehensive
Income (Loss)

Total
Shareholders’
Equity

Non-
Controlling
Interests

Total
Equity

Balance, December 31,

2013

Net income

Other comprehensive

income

Repurchase of common

stock

Issuance of shares for

equity compensation,
net

Tax effect from equity
compensation, net

Share-based compensation

Issuance of shares in

settlement of deferred
compensation, net

Cash dividends on
common stock

Capital calls and

distributions, net

Balance, December 31,

2014

Net income

Other comprehensive loss

Repurchase of common

stock

Issuance of shares for

equity compensation,
net

Tax effect from equity
compensation, net

Share-based compensation

Cash dividends on
common stock

Sale of non-controlling

interest

Capital calls and

distributions, net

73,163

$

—

—

—

510

—

—

331

—

—

74,004

—

—

—

526

—

—

—

—

—

Balance, December 31,

2015

74,530

—

—

—

463

—

—

Net income (loss)

Other comprehensive loss

Repurchase of common

stock

Issuance of shares for

equity compensation,
net

Tax effect from equity
compensation, net

Share-based compensation

Cash dividends on
common stock

Capital calls and

distributions, net

Balance, December 31,

2016

4

—

—

—

—

—

—

—

—

4

—

—

—

—

—

—

—

—

—

4

—

—

—

—

—

—

$ 898,586

$2,349,428

4,305

$ (202,346) $

(25,623) $

3,020,049

$

34,924

$3,054,973

292,435

—

—

—

—

—

—

—

—

16,632

8,258

9,680

21,488

—

—

—

—

200

(12,337)

183

(12,160)

—

—

—

—

202

(13,136)

—

—

(111,026)

—

—

—

—

—

—

292,435

3,044

295,479

82,296

82,296

(12,337)

4,472

8,258

9,680

8,352

—

—

—

—

—

82,296

(12,337)

4,472

8,258

9,680

8,352

(111,026)

—

(111,026)

—

(3,941)

(3,941)

—

—

—

—

—

—

954,644

2,530,837

4,890

(239,979)

56,673

3,302,179

34,027

3,336,206

—

—

—

14,357

925

12,083

—

—

—

288,565

—

—

—

—

—

—

(35,086)

— 3,634

(229,540)

—

—

—

(115,281)

—

—

112

(7,646)

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

288,565

(35,086)

(229,540)

6,711

925

12,083

(115,281)

3,694

292,259

—

—

—

—

—

—

(35,086)

(229,540)

6,711

925

12,083

(115,281)

—

—

5,500

5,500

(6,138)

(6,138)

982,009

2,704,121

8,636

(477,165)

21,587

3,230,556

37,083

3,267,639

—

—

—

12,465

1,590

10,471

—

—

232,668

—

—

—

—

—

—

(32,554)

— 1,005

(66,792)

—

—

—

15

—

—

(113,455)

—

—

(95)

—

—

—

—

—

—

—

—

232,668

(32,554)

(66,792)

12,370

1,590

10,471

(113,455)

(387)

232,281

—

—

—

—

—

—

(32,554)

(66,792)

12,370

1,590

10,471

(113,455)

—

(5,193)

(5,193)

—

—

74,993

$

4

$1,006,535

$2,823,334

9,656

$ (544,052) $

(10,967) $

3,274,854

$

31,503

$3,306,357

See accompanying notes to consolidated financial statements.

85

 
 
 
 
 
 
 
 
 
Consolidated Statements of Cash Flows
(In thousands)

Cash Flows From Operating Activities:
Net income
Adjustments to reconcile net income to net cash provided by (used in) operating activities:

Provision for credit losses
Change in fair value of mortgage servicing rights due to market changes
Change in fair value of mortgage servicing rights due to loan runoff
Unrealized losses (gains) from derivative contracts
Depreciation and amortization
Tax effect from equity compensation, net
Share-based compensation
Net amortization of securities discounts and premiums
Net realized gains on financial instruments and other assets
Net gain on mortgage loans held for sale
Mortgage loans originated for sale
Proceeds from sale of mortgage loans held for sale
Capitalized mortgage servicing rights
Change in trading and fair value option securities
Change in receivables
Change in other assets
Change in accrued interest, taxes and expense
Change in other liabilities

Net cash provided by (used in) operating activities

Cash Flows From Investing Activities:

Proceeds from sales of available for sale securities
Proceeds from maturities or redemptions of investment securities
Proceeds from maturities or redemptions of available for sale securities
Purchases of investment securities
Purchases of available for sale securities
Change in amount receivable on unsettled securities sales
Loans originated, net of principal collected
Net payments on derivative asset contracts
Proceeds from disposition of assets
Acquisitions, net of cash acquired
Purchases of assets

Net cash used in investing activities

Cash Flows From Financing Activities:

Net change in demand deposits, transaction deposits and savings accounts
Net change in time deposits
Net change in other borrowed funds
Repayment of subordinated debentures
Issuance of subordinated debentures, net of issuance costs
Change in amount due on unsettled security purchases
Issuance of common and treasury stock, net
Net change in derivative margin accounts
Net payments or proceeds on derivative liability contracts
Tax effect from equity compensation, net
Sale of non-controlling interests
Repurchase of common stock
Dividends paid

Net cash provided by financing activities
Net increase (decrease) in cash and cash equivalents
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period

86

2016

Year Ended
2015

2014

$

232,281

$

292,259

$

295,479

65,000
2,193
40,744
11,234
47,016
(1,505)
10,471
41,643
(13,011)
(63,636)
(6,117,417)
6,193,587
(71,405)
149,921
(603,861)
(49,565)
44,269
(11,413)
(93,454)

899,381
86,847
1,740,226
(41,590)
(2,333,740)
33,005
(621,605)
(103,668)
198,922
56,017
(199,802)
(286,007)

1,277,285
(216,084)
(606,476)
(226,550)
144,615
(10,389)
12,455
(28,806)
106,051
1,505
—
(66,792)
(113,455)
273,359
(106,102)
2,643,599
2,537,497

34,000
4,853
28,064
964
37,918
(925)
12,083
55,145
(15,212)
(75,780)
(6,372,956)
6,446,659
(79,546)
(69,298)
(6,943)
(29,548)
17,517
15,756
295,010

1,600,380
72,664
1,542,517
(25,132)
(3,300,601)
34,066
(1,681,035)
(156,419)
195,760
(18,098)
(265,406)
(2,001,304)

149,951
(202,652)
2,547,688
(121,810)
—
(273,643)
6,711
(43,226)
149,428
925
5,500
(229,540)
(115,281)
1,874,051
167,757
2,475,842
2,643,599

—
16,445
19,325
(6,495)
36,707
(8,258)
9,680
57,202
(1,362)
(62,053)
(4,484,394)
4,441,819
(54,413)
(243,265)
(7,103)
68,821
(115,772)
1,007
(36,630)

2,664,740
63,258
1,635,533
(44,723)
(3,045,077)
(57,085)
(1,346,995)
(247,726)
273,271
(21,898)
(307,318)
(434,020)

958,809
(87,277)
511,776
—
—
244,800
4,472
84,365
257,439
8,258
—
(12,337)
(111,026)
1,859,279
1,388,629
1,087,213
2,475,842

$

$

$

 
Consolidated Statements of Cash Flows
(In thousands)

Supplemental Cash Flow Information:
Cash paid for interest
Cash paid for taxes
Net loans and bank premises transferred to repossessed real estate and other assets
Residential mortgage loans guaranteed by U.S. government agencies that became eligible

for repurchase during the period

Conveyance of other real estate owned guaranteed by U.S. government agencies
Issuance of shares in settlement of accrued executive compensation

$
$
$

$
$
$

82,876
79,883
36,391

$
$
$

120,406
68,873

$
$
— $

66,091
101,991
12,592

$
$
$

123,383
110,505

$
$
— $

65,721
67,199
79,464

144,630
44,963
8,352

2016

Year Ended
2015

2014

See accompanying notes to consolidated financial statements.

87

 
Notes to Consolidated Financial Statements

(1) Significant Accounting Policies

Basis of Presentation

The Consolidated Financial Statements of BOK Financial Corporation (“BOK Financial” or “the Company”) have been 
prepared in conformity with accounting principles generally accepted in the United States ("U.S. GAAP"), including 
interpretations of U.S. GAAP issued by federal banking regulators and general practices of the banking industry. The 
consolidated financial statements include the accounts of BOK Financial and its subsidiaries, principally BOKF, NA, BOK 
Financial Securities, Inc., The Milestone Group, Inc. and Cavanal Hill Investment Management, Inc. All significant 
intercompany transactions are eliminated in consolidation. 

The consolidated financial statements include the assets, liabilities, non-controlling interests and results of operations of 
variable interest entities (“VIEs”) when BOK Financial is determined to be the primary beneficiary. Variable interest entities 
are generally defined as entities that either do not have sufficient equity to finance their activities without support from other 
parties or whose equity investors lack a controlling financial interest. See additional discussion of variable interest entities at 
Note 14 following.

Certain prior year amounts have been reclassified to conform to the current year presentation. For 2015, $8.4 million of 
residential mortgage loan origination costs were reclassified from operating expense to mortgage banking revenue. Correction 
of this error did not affect net income or earnings per share.

Nature of Operations

BOK Financial, through its subsidiaries, provides a wide range of financial services to commercial and industrial customers, 
other financial institutions, municipalities, and consumers. These services include depository and cash management; lending 
and lease financing; mortgage banking; securities brokerage, trading and underwriting; and personal and corporate trust.

BOKF, NA operates as Bank of Oklahoma primarily in the Tulsa and Oklahoma City metropolitan areas of the state of 
Oklahoma and Bank of Texas primarily in the Dallas, Fort Worth and Houston metropolitan areas of the state of Texas. In 
addition, BOKF, NA does business as Bank of Albuquerque in Albuquerque, New Mexico; Colorado State Bank and Trust in 
Denver, Colorado; Bank of Arizona in Phoenix, Arizona; Bank of Kansas City and Mobank in Kansas City, Missouri/Kansas 
and Bank of Arkansas in Northwest Arkansas. BOKF, NA also operates the TransFund electronic funds network.

Use of Estimates

Preparation of BOK Financial's consolidated financial statements requires management to make estimates of future economic 
activities, including loan collectability, prepayments and cash flows from customer accounts. These estimates are based upon 
current conditions and information available to management. Actual results may differ significantly from these estimates.

Acquisitions

Assets and liabilities acquired, including identifiable intangible assets, are recorded at fair value on the acquisition date. The 
purchase price includes consideration paid at closing and the estimated fair value of contingent consideration that will be paid 
in the future, subject to achieving defined performance criteria. Premiums and discounts assigned to interest-earning assets and 
interest-bearing liabilities are amortized over the lives of the acquired assets and liabilities on either an individual instrument or 
pool basis. Provision for credit losses is recognized for changes in credit quality after the acquisition date. Goodwill is 
recognized as the excess of the purchase price over the net fair value of assets acquired and liabilities assumed. The 
Consolidated Statements of Earnings include the results of operations from the acquisition date.

Goodwill and Intangible Assets

Goodwill and intangible assets generally result from business combinations and are evaluated for each of BOK Financial's 
reporting units for impairment annually or more frequently if conditions indicate impairment. The evaluation of possible 
impairment of goodwill and intangible assets involves significant judgment based upon short-term and long-term projections of 
future performance.

88

 
 
 
Reporting units are defined by the Company as significant lines of business within each operating segment. This definition is 
consistent with the manner in which the chief operating decision maker assesses the performance of the Company and makes 
decisions concerning the allocation of resources. The Company qualitatively assesses whether it is more likely than not that the 
fair value of the reporting units are less than their carrying value, including goodwill. Reporting unit carrying value includes 
sufficient capital to exceed regulatory requirements. This assessment includes consideration of relevant events and 
circumstances including but not limited to macroeconomic conditions, industry and market conditions, the financial and stock 
performance of the Company and other relevant factors.

If the Company concludes that it is not more likely than not that the fair value of a reporting unit is less than its carrying value 
through the qualitative assessment, a quantitative Step 1 analysis is performed. The quantitative analysis compares the fair 
value of the reporting unit with its carrying value, including goodwill. The fair value of each reporting unit is estimated by the 
discounted future earnings method. Goodwill is considered impaired if the fair value of the reporting unit is less than the 
carrying value of the reporting unit, including goodwill. Impairment is measured through a detailed Step 2 assessment of the 
fair values for each asset and liability assigned to the reporting unit performed in a manner similar to a business combination. 

Intangible assets are generally composed of customer relationships, naming rights, non-compete agreements and core deposit 
premiums. They are amortized using accelerated or straight-line methods, as appropriate, over the estimated benefit periods. 
These periods range from 3 years to 20 years. The net book values of identifiable intangible assets are evaluated for impairment 
when economic conditions indicate impairment may exist.

Cash Equivalents

Due from banks, funds sold (generally federal funds sold for one day), resell agreements (which generally mature within one to 
30 days) and investments in money market funds are considered cash equivalents.

Securities

Securities are identified as trading, investment (held to maturity) or available for sale at the time of purchase based upon the 
intent of management, liquidity and capital requirements, regulatory limitations and other relevant factors. Trading securities, 
which are acquired for profit through resale, are carried at fair value with unrealized gains and losses included in current period 
earnings. Investment securities are carried at amortized cost. Amortization is computed by methods that approximate level yield 
and is adjusted for changes in prepayment estimates. Securities identified as available for sale are carried at fair value. 
Unrealized gains and losses are recorded, net of deferred income taxes, as accumulated other comprehensive income in 
shareholders' equity. Available for sale securities are separately identified as pledged to creditors if the creditor has the right to 
sell or re-pledge the collateral.

The purchase or sale of securities is recognized on a trade date basis. Realized gains and losses on sales of securities are based 
upon specific identification of the security sold. A receivable or payable is recognized for subsequent transaction 
settlement. Securities meeting certain criteria may also be transferred from the available for sale classification to the investment 
securities portfolio at fair value on the date of transfer. The unrealized gain or loss at the date of transfer is retained in 
accumulated other comprehensive income and in the carrying value of the investment securities portfolio. Such amounts are 
amortized over the estimated remaining life of the security as an adjustment to yield, offsetting the related amortization of the 
premium or accretion of the discount on the transferred securities.

On a quarterly basis, the Company performs separate evaluations of impaired debt investment and available for sale securities 
and equity available for sale securities to determine if the decline in fair value below the amortized cost is other-than-
temporary.

For debt securities, management determines whether it intends to sell or if it is more likely than not that it will be required to 
sell impaired securities. This determination considers current and forecasted liquidity requirements and securities portfolio 
management. If the Company intends to sell or it is more likely than not that it will be required to sell the impaired debt 
security, a charge is recognized against earnings for the entire unrealized loss. For all impaired debt securities for which there is 
no intent or expected requirement to sell, the evaluation considers all available evidence to assess whether it is more likely than 
not that all amounts due would not be collected according to the security's contractual terms. Impairment of debt securities 
rated investment grade by all nationally-recognized rating agencies is considered temporary unless specific contrary 
information is identified. Impairment of debt securities rated below investment grade by at least one of the nationally 
recognized rating agencies is evaluated based on projections of estimated cash flows. Any expected credit loss due to the 
inability to collect all amounts due according to the security's contractual terms is recognized as a charge against earnings. Any 
remaining unrealized loss related to other factors would be recognized in other comprehensive income, net of taxes.

89

 
 
 
 
For equity securities, management evaluates various factors including cause, severity and duration of the decline in value of the 
security and prospects for recovery, as well as the Company's intent and ability not to sell the security until the fair value 
exceeds amortized cost over periods not to exceed three years. If an unrealized loss is determined to be other-than-temporary, a 
charge is recognized against earnings for the difference between the security's amortized cost and fair value.

BOK Financial may elect to carry certain securities at fair value with changes in fair value recognized in current period 
income. These securities are held with the intent that gains or losses will offset changes in the fair value of mortgage servicing 
rights or certain derivative instruments.

Restricted equity securities represent equity interests the Company is required to hold in the Federal Reserve Banks and Federal 
Home Loan Banks. Restricted equity securities are carried at cost as these securities do not have a readily determined fair value 
because ownership of these shares is restricted and they lack a market.

Derivative Instruments

Derivative instruments may be used by the Company as part of its internal risk management programs or may be offered to 
customers. All derivative instruments are carried at fair value and changes in fair value are generally reported in income as they 
occur. The determination of fair value of derivative instruments considers changes in interest rates, commodity prices and 
foreign exchange rates. Credit risk is also considered in determining fair value. Deterioration in the credit rating of customers 
or other counterparties reduces the fair value of asset contracts. Deterioration of our credit rating could decrease the fair value 
of our derivative liabilities. 

When bilateral netting agreements or similar agreements exist between the Company and its counterparties that create a single 
legal claim or obligation to pay or receive the net amount in settlement of the individual derivative contracts, the Company 
reports derivative assets and liabilities on a net by derivative contract by counterparty basis.

Derivative contracts may also require the Company to provide or receive cash margin as collateral for derivative assets and 
liabilities. Derivative assets and liabilities are reported net of cash margin when certain conditions are met. In addition, 
derivative contracts executed with customers under Customer Risk Management Programs may be secured by non-cash 
collateral in conjunction with a credit agreement with that customer. Access to collateral, in the event of default is reasonably 
assured.

Derivative instruments may be designated as cash flow hedges of variable rate assets or liabilities, or of anticipated 
transactions. Changes in the fair value of derivative instruments designated as cash flow hedges are recorded in accumulated 
other comprehensive income to the extent they are effective. The amount recorded in other comprehensive income is 
reclassified to earnings in the same periods as the hedged cash flows impact earnings. The ineffective portion of changes in fair 
value is reported in current earnings.

BOK Financial may use derivative instruments in managing its interest rate sensitivity, as part of its economic hedge of the 
changes in the fair value of mortgage servicing rights and as an economic hedge of trading securities. Changes in the fair value 
of derivative instruments used in managing interest rate sensitivity and as part of its economic hedge of changes in the fair 
value of mortgage servicing rights are included in Other Operating Revenue - Gain (loss) on derivatives, net in the 
Consolidated Statement of Earnings. Changes in the fair value of derivative instruments used as an economic hedge of trading 
securities are included in Operating Revenue- Brokerage and trading revenue.

BOK Financial also enters into mortgage loan commitments that are considered derivative contracts. Forward sales contracts 
that have not been designated as hedging instruments are used to economically hedge these mortgage loan commitments as 
well as mortgage loans held for sale. Mortgage loan commitments are carried at fair value based upon quoted prices. Changes 
in fair value of mortgage loan commitments, mortgage loans held for sale and forward sales contracts are reported in Other 
Operating Revenue - Mortgage Banking Revenue.

90

 
BOK Financial offers programs that permit its customers to manage various risks, including fluctuations in energy, cattle and 
other agricultural products, interest rates and foreign exchanges rates with derivative contracts. Customers may also manage 
interest rate risk through interest rate swaps used by the borrower to modify interest rate terms of their loans or to-be-
announced securities used by our mortgage banking customers to hedge their loan production. Derivative contracts are 
executed between the customers and BOK Financial. Offsetting contracts are executed between BOK Financial and other 
selected counterparties to minimize market risk from changes in commodity prices, interest rates or foreign exchange rates. The 
counterparty contracts are identical to customer contracts, except for a fixed pricing spread or fee paid to BOK Financial as 
profit and compensation for administrative costs and credit risk which is recognized over the life of the contracts and included 
in other Operating Revenue - Brokerage and Trading Revenue in the Consolidated Statements of Earnings.

Loans

Loans are either secured or unsecured based on the type of loan and the financial condition of the borrower. Repayment is 
generally expected from cash flow or proceeds from the sale of selected assets of the borrower. BOK Financial is exposed to 
risk of loss on loans due to the borrower's financial difficulties, which may arise from any number of factors, including 
problems within the respective industry or local economic conditions. Access to collateral, in the event of borrower default, is 
reasonably assured through adherence to applicable lending laws and through sound lending standards and credit review 
procedures. Accounting policies for all loans, excluding residential loans guaranteed by U.S. government agencies, are as 
follows.

Interest is accrued at the applicable interest rate on the outstanding principal amount. Loans are placed on nonaccruing status 
when, in the opinion of management, full collection of principal or interest is uncertain. Internally risk graded loans are 
individually evaluated for nonaccruing status quarterly. Non-risk graded loans are generally placed on nonaccruing status when 
90 days or more past due or within 60 days of being notified of the borrower's bankruptcy filing. Interest previously accrued 
but not collected is charged against interest income when the loan is placed on nonaccruing status. Payments received on 
nonaccruing loans are applied to principal or recognized as interest income, according to management's judgment as to the 
collectability of principal. Loans may be returned to accruing status when, in the opinion of management, full collection of 
principal and interest, including principal previously charged off, is probable based on improvements in the borrower's financial 
condition or a sustained period of performance.

Loans to borrowers experiencing financial difficulties may be modified in troubled debt restructurings ("TDRs"). All TDRs are 
classified as nonaccruing. Modifications generally consist of extension of payment terms or interest rate concessions and may 
result either voluntarily through negotiations with the borrower or involuntarily through court order. Generally, principal and 
accrued but unpaid interest is not voluntarily forgiven. 

Performing loans may be renewed under the current collateral, debt service ratio and other underwriting standards. 
Nonaccruing loans may also be renewed and will remain classified as nonaccruing.

Occasionally, loans, other than residential mortgage loans, may be held for sale in order to manage credit concentration. These 
loans are carried at the lower of cost or fair value with gains or losses recognized in gain (loss) on assets.  

All loans are charged-off when the loan balance or a portion of the loan balance is no longer supported by the paying capacity 
of the borrower or when the required cash flow is reduced in a TDR. The charge-off amount is determined through an 
evaluation of available cash resources and collateral value. Internally risk graded loans are evaluated quarterly and charge-offs 
are taken in the quarter in which the loss is identified. Non-risk graded loans that are past due between 60 days and 180 days, 
based on the loan product type, are charged off. Loans to borrowers whose personal obligation has been discharged through 
Chapter 7 bankruptcy proceedings are charged off within 60 days of notice of the bankruptcy filing, regardless of payment 
status.

Loan origination and commitment fees and direct loan acquisition and origination costs are deferred and amortized as an 
adjustment to yield over the life of the loan or over the commitment period, as applicable. Amortization does not anticipate loan 
prepayments. Net unamortized fees are recognized in full at time of payoff.

91

 
Qualifying residential mortgage loans guaranteed by U.S. government agencies have been sold into GNMA pools. Under 
certain performance conditions specified in government programs, the Company has the right, but not the obligation to 
repurchase loans from GNMA pools. These loans no longer qualify for sale accounting and are recognized in the Consolidated 
Balance Sheet. Guaranteed loans are considered to be impaired because we do not expect to receive all principal and interest 
based on the loan's contractual terms. The principal balance continues to be guaranteed, however, interest accrues at a curtailed 
rate as specified in the programs. The carrying value of these loans is reduced based on an estimate of expected cash flows 
discounted at the original note rate plus a liquidity spread. Guaranteed loans may be modified in TDRs in accordance with U.S. 
government agency guidelines. Interest continues to accrue at the modified rate. U.S. government guaranteed loans may either 
be resold into GNMA pools after a performance period specified by the programs or foreclosed and conveyed to the guarantors.

Loans are disaggregated into portfolio segments and further disaggregated into classes. The portfolio segment is the level at 
which the Company develops and documents a systematic method for determining its Allowance for Credits Losses. Classes 
are based on the risk characteristics of the loans and the Company's method for monitoring and assessing credit risk.

Allowance for Loan Losses and Accrual for Off-Balance Sheet Credit Risk

The appropriateness of the allowance for loan losses and accrual for off-balance sheet credit risk (collectively "Allowance for 
Credit Losses") is assessed by management quarterly based on an ongoing quarterly evaluation of the probable estimated losses 
inherent in the portfolio, including probable losses on outstanding loans and unused commitments to provide financing. A 
consistent well-documented methodology has been developed and is applied by an independent Credit Administration 
department to assure consistency across the Company.

The allowance for loan losses consists of specific allowances attributed to impaired loans that have not yet been charged down 
to amounts we expect to recover, general allowances based on estimated loss rates by loan class and nonspecific allowances 
based on factors that affect more than one portfolio segment. There were no changes to the methodology for estimating general 
allowances during 2016 or 2015. 

Loans are considered to be impaired when it becomes probable that BOK Financial will be unable to collect all amounts due 
according to the contractual terms of the loan agreements. Internally risk graded loans are evaluated individually for 
impairment. Substantially all commercial and commercial real estate loans and certain residential mortgage and personal loans 
are risk graded based on a quarterly evaluation of the borrowers' ability to repay. Certain commercial loans and most residential 
mortgage and personal loans are small balance, homogeneous pools of loans that are not risk graded. Non-risk graded loans are 
identified as impaired based on performance status. Generally, non-risk graded loans 90 days or more past due, modified in a 
troubled debt restructuring or in bankruptcy are considered to be impaired.

Specific allowances for impaired loans are measured by an evaluation of estimated future cash flows discounted at the loan's 
initial effective interest rate or the fair value of collateral for certain collateral dependent loans. The fair value of real property 
held as collateral is generally based on third party appraisals that conform to Uniform Standards of Professional Appraisal 
Practice, less estimated selling costs. Appraised values are on an “as-is” basis and generally are not adjusted by the 
Company. Updated appraisals are obtained at least annually or more frequently if market conditions indicate collateral values 
may have declined. Collateral value of mineral rights is generally determined by our internal staff of engineers based on 
projected cash flows from proven oil and gas reserves under existing economic and operating conditions. The value of other 
collateral is generally determined by our special assets staff based on projected liquidation cash flows under current market 
conditions. Collateral values and available cash resources that support impaired loans are evaluated quarterly. Historical 
statistics may be used as a practical way to estimate impairment in limited situations, such as when a collateral dependent loan 
is identified as impaired at the end of a reporting period until an appraisal of collateral value is received or a full assessment of 
future cash flows is completed. Estimates of future cash flows and collateral values require significant judgments and may be 
volatile.

92

General allowances for unimpaired loans are based on an estimated loss rate by loan class. The appropriate historical gross loss 
rate for each loan class is determined by the greater of the current loss rate based on the most recent twelve months or a ten-
year average gross loss rate. Recoveries are not directly considered in the estimation of historical loss rates. Recoveries 
generally do not follow predictable patterns and are not received until well-after the charge-off date as a result of protracted 
legal actions. For risk graded loans, historical gross loss rates are adjusted for changes in risk grading. For each loan class, the 
current weighted average risk grade is compared to the long-term weighted average risk grade. This comparison determines 
whether credit risk in each loan class is increasing or decreasing. Historical loss rates are adjusted upward or downward in 
proportion to changes in average risk grading. General allowances for unimpaired loans also consider inherent risks identified 
for each loan class. Inherent risks consider loss rates that most appropriately represent the current credit cycle and other factors 
attributable to a specific loan class which have not yet been represented in the historical gross loss rates or risk grading. These 
factors include changes in commodity prices or engineering imprecision which may affect the value of reserves that secure our 
energy loan portfolio, construction risk that may affect commercial real estate loans, changes in regulations and public policy 
that may disproportionately impact health care loans and changes in loan products.

Nonspecific allowances are maintained for risks beyond factors specific to a particular portfolio segment or loan class. These 
factors include trends in the economy in our primary lending areas, concentration in large-balance loans and other relevant 
factors. 

An accrual for off-balance sheet credit risk is included in Other liabilities. The appropriateness of the accrual is determined in 
the same manner as the allowance for loan losses. 

A provision for credit losses is charged against or credited to earnings in amounts necessary to maintain an appropriate 
Allowance for Credit Losses. Recoveries of loans previously charged off are added to the allowance when received.

Transfers of Financial Assets

BOK Financial regularly transfers financial assets as part of its mortgage banking activities and periodically may transfer other 
financial assets. Transfers are recorded as sales when the criteria for surrender of control are met.  

The Company has elected to carry certain residential mortgage loans held for sale at fair value under the fair value option. 
Changes in fair value are recognized in net income as they occur. These loans are reported separately in the Consolidated 
Balance Sheets and changes in fair value are recorded in other operating revenue - mortgage banking revenue in the 
Consolidated Statements of Earnings.  

Fair value of conforming residential mortgage loans that will be sold to U.S. government agencies is based on sales 
commitments or market quotes considered Level 2 inputs. Fair value of mortgage loans that are unable to be sold to U.S. 
government agencies is based on Level 3 inputs using quoted prices of loans that are sold in securitization transactions with a 
liquidity discount applied. The fair value is corroborated with an independent third party on at least an annual basis.  

BOK Financial retains a repurchase obligation under underwriting representations and warranties related to residential 
mortgage loans transferred and generally retains the right to service the loans. The Company may incur a recourse obligation in 
limited circumstances. Separate accruals are recognized in Other liabilities in the Consolidated Balance Sheets for repurchase 
and recourse obligations. These reserves reflect the estimated amount of probable loss the Company will incur as a result of 
repurchasing a loan, indemnifications, and other settlement resolutions.  

Repurchases of loans with an origination defect that are also credit impaired are considered collateral dependent and are 
initially recognized at net realizable value (appraised value less the cost to sell). The difference between unpaid principal 
balance and net realizable value is not accreted. Repurchases of loans with an origination defect that are not credit impaired are 
carried at fair value as of the repurchase date. Interest income continues to accrue on these loans and the discount is accreted 
over the estimated life of the loan.

The accrual for credit losses related to recourse loans for principal and interest is performed by Credit Administration and 
subject to oversight by the Finance/Credit Administration Allowance Committee. All other mortgage related accruals are 
reviewed monthly by the Mortgage Contingency Loss Accrual Committee which is subject to oversight by Finance.  

The Company may also choose to purchase GNMA loans once certain mandated delinquency criteria are met. The loans that 
are eligible and are chosen to be repurchased are initially recognized at fair value based on expected cash flow discounted using 
the average agency guaranteed debenture rates, average actual principal loss rates and liquidity premium.

93

 
The Company may also retain a residual interest in excess cash flows generated by the assets. All assets obtained, including 
cash, servicing rights and residual interests, and all liabilities incurred, including recourse obligations, are initially recognized 
at fair value, all assets transferred are de-recognized and any gain or loss on the sale is recognized in earnings. Subsequently, 
servicing rights and residual interest are carried at fair value with changes in fair value recognized in earnings as they occur. 

Real Estate and Other Repossessed Assets

Real estate and other repossessed assets are acquired in partial or total forgiveness of loans. These assets are initially 
recognized at cost, which is determined by fair value at date of foreclosure less estimated disposal costs. They are subsequently 
carried at the lower of cost or current fair value less estimated disposal costs. Decreases in fair value below cost are recognized 
as asset-specific valuation allowances which may be reversed when supported by future increases in fair value. Subsequent 
increases in fair value may be used to reduce the allowance but not below zero. Fair values of real estate are based on “as is” 
appraisals which are updated at least annually or more frequently for certain asset types or assets located in certain distressed 
markets. Fair values based on appraisals are generally considered to be based on significant other observable inputs. The 
Company also considers decreases in listing price and other relevant information in quarterly evaluations and reduces the 
carrying value of real estate and other repossessed assets when necessary. Fair values based on list prices and other relevant 
information are generally considered to be based on significant unobservable inputs. Additional costs incurred to complete real 
estate and other repossessed assets may increase the carrying value, up to current fair value based on “as completed” 
appraisals. The fair value of mineral rights included in repossessed assets are generally determined by our internal staff of 
engineers based on projected cash flows from proven oil and gas reserves under existing economic and operating 
conditions. The value of other repossessed assets is generally determined by our special assets staff based on projected 
liquidation cash flows under current market conditions. Income generated by these assets is recognized as received. Operating 
expenses are recognized as incurred. Gains or losses on sales of real estate and other repossessed assets are based on the cash 
proceeds received less the cost basis of the asset, net of any valuation allowances. The estimated disposal costs of real estate 
and other repossessed assets are evaluated by the Company on an annual basis based on actual results.

Premises and Equipment

Premises and equipment are carried at cost, including capitalized interest when appropriate, less accumulated depreciation and 
amortization. Depreciation and amortization are computed on a straight-line basis over the estimated useful lives of the assets 
or, for leasehold improvements, over the shorter of the estimated useful lives or remaining lease terms. Useful lives range from 
5 years to 40 years for buildings and improvements, 3 years to 10 years for software and 3 years to 10 years for furniture and 
equipment. Construction in progress represents facilities construction and data processing systems projects underway that have 
not yet been placed into service. Depreciation and amortization begin once the assets are placed into service. 

Repair and maintenance costs, including software maintenance and enhancement costs, are charged to expense as incurred. 
Software licensing costs are generally charged to expense as incurred. Software licensing costs are capitalized if the contractual 
right to take possession of the software exists and it is feasible to take possession without significant penalty. Capitalized costs 
are amortized over the shorter of the estimated useful life of the software or remaining contractual life of the license.

Premises no longer used by the Company are transferred to real estate and other repossessed assets. The transferred amount is 
the lower of cost less accumulated depreciation or fair value less estimated disposal costs as of the transfer date.

Rent expense for leased premises is recognized as incurred over the lease term. The effects of rent holidays, significant rent 
escalations and other adjustments to rent payments are recognized on a straight-line basis over the lease term.

Ongoing technology projects of significant size or length are reviewed at least annually for impairment.  The construction in 
progress account is reviewed for projects or components of projects that do not support the value of the asset being constructed.  
Findings of obsolescence, duplicate effort or other conditions that do not support the recorded value are impaired, with the cost 
of the impaired components being charged to current-year earnings.

Mortgage Servicing Rights

Mortgage servicing rights may be purchased or may be recognized when mortgage loans are originated and sold with servicing 
right retained. All mortgage servicing rights are carried at fair value. Changes in the fair value are recognized in earnings as 
they occur.

94

 
 
 
There is no active market for trading in mortgage servicing rights after origination. A cash flow model is used to determine fair 
value. Key assumptions and estimates, including projected prepayment speeds and assumed servicing costs, earnings on escrow 
deposits, ancillary income and discount rates, used by this model are based on current market sources. Assumptions used to 
value mortgage servicing rights are considered significant unobservable inputs. A separate third party model is used to estimate 
prepayment speeds based on interest rates, housing turnover rates, estimated loan curtailment, anticipated defaults and other 
relevant factors. The prepayment model is updated daily for changes in market conditions and adjusted to better correlate with 
actual performance of BOK Financial's servicing portfolio. Fair value estimates from outside sources are received at least 
annually to corroborate the results of the valuation model.

Federal and State Income Taxes

BOK Financial and its subsidiaries file consolidated tax returns. The subsidiaries provide for income taxes on a separate return 
basis and remit to BOK Financial amounts determined to be currently payable. BOK Financial is agent for its subsidiaries 
under the Company's tax sharing agreements and has no ownership rights to any refunds received for the benefit of its 
subsidiaries. 

Current income tax expense or benefit is based on an evaluation that considers estimated taxable income, tax credits, and 
statutory federal and state income tax rates. The amount of current income tax expense or benefit recognized in any period may 
differ from amounts reported to taxing authorities. Annually, tax returns are filed with each jurisdiction where the Company 
conducts business and recognized current income tax expense or benefit is adjusted to the filed tax returns.

Deferred tax assets and liabilities are based upon the differences between the values of assets and liabilities as recognized in the 
financial statements and their related tax basis using enacted tax rates in effect for the year in which the differences are 
expected to be recovered or settled. A valuation allowance is provided when it is more likely than not that some portion of the 
entire deferred tax asset may not be realized based on taxes previously paid in net loss carry-back periods and other factors.  

BOK Financial has unrecognized tax benefits, which are included in accrued current income taxes payable, for the uncertain 
portion of recorded tax benefits and related interest. These uncertainties result from the application of complex tax laws, rules, 
regulations and interpretations, primarily in state taxing jurisdictions. Unrecognized tax benefits are assessed quarterly and may 
be adjusted through current income tax expense in future periods based on changing facts and circumstances, completion of 
examinations by taxing authorities or expiration of a statute of limitations. Estimated penalties and interest on uncertain tax 
positions are recognized in income tax expense.

Employee Benefit Plans

BOK Financial sponsors a defined benefit cash balance pension plan (“Pension Plan”), qualified profit sharing plan (“Thrift 
Plan”) and employee health care plans. Pension Plan costs, which are based upon actuarial computations of current costs, are 
expensed annually. Unrecognized prior service cost and net gains or losses are amortized on a straight-line basis over a period 
not to exceed the average remaining service periods of the participants. Employer contributions to the Pension Plan are in 
accordance with Federal income tax regulations. Pension Plan benefits were curtailed as of April 1, 2006. No participants may 
be added to the Pension Plan and no additional service benefits will be accrued.

BOK Financial recognizes the funded status of its employee benefit plans. For a pension plan, the funded status is the 
difference between the fair value of plan assets and the projected benefit obligation measured as of the fiscal year-end 
date. Adjustments required to recognize the Pension Plan's net funded status are made through accumulated other 
comprehensive income, net of deferred income taxes.

Employer contributions to the Thrift Plan, which matches employee contributions subject to percentage and years of service 
limits, are expensed when incurred. BOK Financial recognizes the expense of health care benefits on the accrual method.

95

 
 
Share-Based Compensation Plans

BOK Financial awards stock options and non-vested common shares as compensation to certain officers. Compensation cost is 
generally fixed based on the grant date fair value of the award. The grant date fair value of stock options is based on the Black-
Scholes option pricing model. Stock options generally have graded vesting over 7 years. Each tranche is considered a separate 
award for valuation and compensation cost recognition. Grant date fair value of non-vested shares is based on the then-current 
market value of BOK Financial common stock. Non-vested shares awarded prior to 2013 generally cliff vest in 5 years. Non-
vested shares awarded since January 1, 2013 generally cliff vest in 3 years and are subject to a two year holding period after 
vesting. Shares awarded under the Executive Incentive Plan are subject to downward adjustment at the discretion of the 
Incentive Compensation Committee. Compensation cost of non-vested shares granted under the Executive Incentive Plan varies 
based on changes in the fair value of BOKF common shares.   

Compensation cost is recognized as expense over the service period, which is generally the vesting period. Expense is reduced 
for estimated forfeitures over the vesting period and adjusted for actual forfeitures as they occur. Stock-based compensation 
awarded to certain officers has performance conditions that affect the number of awards granted. Compensation cost is adjusted 
based on the probable outcome of the performance conditions. 

Excess tax benefits from share-based payments recognized in capital surplus are determined by the excess of tax benefits 
recognized over the tax effect of compensation cost recognized. Dividends on non-vested shares that are not subject to 
forfeiture are charged to dividends paid. 

Other Operating Revenue

Fees and commission revenue is recognized at the time the related services are provided or products are sold and may be 
accrued when necessary. Accrued fees and commissions are reversed against revenue if amounts are subsequently deemed to be 
uncollectible. Revenue is recognized on a gross basis whenever we have primary responsibility and risk in providing the 
services or products to our customers and on a net basis whenever we act as a broker for products or services of others.

Brokerage and trading revenue includes changes in the fair value of securities and derivatives held for trading purposes and 
derivatives held for customer risk management programs, including credit losses, commissions earned from the retail sale of 
securities, mutual funds and other financial instruments, and underwriting and financial advisory fees.

Transaction card revenue includes merchant discount fees, electronic funds transfer network fees and check card fees. Merchant 
discount fees represent fees paid by customers for account management and electronic processing of transactions. Merchant 
discount fees are recognized at the time the customer's transactions are processed or other services are performed. The 
Company also maintains the TransFund electronic funds transfer network for the benefit of its members, which includes BOKF, 
NA. Electronic funds transfer fees are recognized as electronic transactions processed on behalf of its members. Check card 
fees represent interchange fees paid by a merchant bank for transactions processed from cards issued by the Company. Check 
card fees are recognized when transactions are processed. Interchange fees are generally recognized on a gross basis. Related 
expenses are generally recognized as Data processing and communications expense.

Fiduciary and asset management revenue includes fees from asset management, custody, recordkeeping, investment advisory 
and administration services. Revenue is recognized on an accrual basis at the time the services are performed and may be based 
on either the fair value of the account or the service provided.

Deposit service charges and fees are recognized at least quarterly in accordance with a published deposit account agreements 
and disclosure statements for retail accounts or contractual agreements for commercial accounts. Item charges for overdraft or 
non-sufficient funds items are recognized as items are presented for payment. Account balance charges and activity fees are 
accrued monthly and collected in arrears. Commercial account activity fees may be offset by an earnings credit based on 
account balances.

96

 
 
Newly Adopted and Pending Accounting Pronouncements

The following is a summary of newly adopted and pending accounting pronouncements that may have a more than 
insignificant effect on the Company's financial statements. 

Financial Accounting Standards Board ("FASB")

FASB Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers ("ASU 2014-09")

On May 28, 2014, the FASB issued ASU 2014-09 to clarify the principles for recognizing revenue by providing a more robust 
framework that will give greater consistency and comparability in revenue recognition practices. In the new framework, an 
entity recognizes revenue in an amount that reflects the consideration to which the entity expects to be entitled in exchange for 
goods or services. The new model requires the identification of performance obligations included in contracts with customers, a 
determination of the transaction price and an allocation of the price to those performance obligations. The entity recognizes 
revenue when performance obligations are satisfied. ASU 2014-09 is effective for the Company for annual reporting periods 
beginning after December 15, 2017, including interim periods within that reporting period. Net interest revenue from financial 
assets and liabilities is explicitly excluded from the scope of ASU 2014-09. Management expects that most fees and 
commission revenue will not be affected. The Company continues to evaluate the impact of ASU 2014-09 on Fiduciary and 
Asset Management Revenue and Transaction Card Revenue which represent 18% of total gross revenue and 39% of fees and 
commissions revenue for 2016. Timing of revenue recognition and gross vs. net revenue presentation may be affected. 
Management expects to adopt the standard in the first quarter of 2018 with a cumulative effect adjustment to opening retained 
earnings if such adjustment is significant. 

FASB Accounting Standards Update No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent 
Considerations (Reporting Revenue Gross versus Net) ("ASU 2016-08")

On March 17, 2016, the FASB Issued ASU 2016-08 to amend the principal versus agent implementation guidance in ASU 
2014-09. The ASU clarifies that an entity should evaluate whether it is the principal or the agent for each specified good or 
service promised in a contract with a customer. ASU 2016-08 is effective for the Company for annual reporting periods 
beginning after December 15, 2017, including interim periods within that reporting period. The Company generally follows the 
guidance of ASU 2016-08 and is evaluating the impact the adoption of ASU 2016-08 may have on the Company's financial 
statements along with ASU 2014-09. 

FASB Accounting Standards Update No. 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying 
Performance Obligations and Licensing ("ASU 2016-10")

On April 14, 2016, the FASB issued ASU 2016-10 which amends certain sections of ASU 2014-09 related to identifying 
performance obligations and licensing implementation. ASU 2016-10 is effective for the Company for annual reporting periods 
beginning after December 15, 2017, including interim periods within that reporting period. The Company is evaluating the 
impact the adoption of ASU 2016-10 may have on the Company's financial statements along with ASU 2014-09.

FASB Accounting Standards Update No. 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow-Scope 
Improvements and Practical Expedients ("ASU 2016-12")

On May 9, 2016, the FASB issued ASU 2016-12, which amends certain aspects of the Board's new revenue standard, ASU 
2014-09. The amendments clarify information regarding collectibility, presentation of sales tax and other similar taxes collected 
from customers, noncash consideration, contract modifications and completed contracts at transition, and transition disclosures. 
ASU 2016-12 is effective for the Company for annual reporting periods beginning after December 15, 2017, including interim 
periods within that reporting period. The Company is evaluating the impact the adoption of ASU 2016-12 may have on the 
Company's financial statements along with ASU 2014-09.

97

FASB Accounting Standards Update No. 2014-16, Derivatives and Hedging (Topic 815): Determining Whether the Host 
Contract in a Hybrid Financial Instrument Issued in the Form of a Share is More Akin to Debt or to Equity ("ASU 2014-16")

On November 3, 2014, the FASB issued ASU 2014-16 to eliminate the use of different methods and reduce diversity under 
GAAP in the accounting for hybrid financial instruments issued in the form of a share. For hybrid financial instruments issued 
in the form of a share, an entity should determine the nature of the host contract by considering all stated and implied 
substantive terms and features of the hybrid financial instrument. The entity should determine the nature of the host contract by 
considering the economic characteristics and risks of the entire hybrid financial instrument, including the embedded derivative 
feature that is being evaluated for separate accounting from the host contract. For public business entities, the ASU was 
effective for annual periods beginning after December 15, 2015, and interim periods within those annual periods. Adoption of 
ASU 2014-16 did not impact the Company's consolidated financial statements.

FASB Accounting Standards Update No. 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis 
("ASU 2015-02")

On February 18, 2015, the FASB issued ASU 2015-02 to address concerns that current U.S. GAAP may require a reporting 
entity to consolidate another legal entity where the reporting entity's contractual rights do not give it the ability to act primarily 
on its own behalf, the reporting entity does not hold a majority of the legal entity's voting rights, or the reporting entity is not 
exposed to a majority of the legal entity's economic benefits or obligations. The amendments affected limited partnerships and 
similar legal entities, the evaluation of fees paid to a decision maker or a service provider as a variable interest, the effect of fee 
arrangements and related parties on the primary beneficiary determination, and certain investment funds. The ASU was 
effective for periods beginning after December 15, 2015 for public companies. Adoption of ASU 2015-02 did not have a 
material impact on the Company's consolidated financial statements.

FASB Accounting Standards Update No. 2015-07, Fair Value Measurements (Topic 820): Disclosures for Investments in Certain 
Entities That Calculate Net Asset Value per Share (or Its Equivalent) ("ASU 2015-07")

On May 1, 2015, the FASB issued ASU 2015-07 to gain consistency within the categorization of the fair value hierarchy. The 
update removed the requirement to categorize within the fair value hierarchy all investments for which fair value is measured 
using the net asset value per share practical expedient. It also removed the requirement to make certain disclosures for all investments 
that are eligible to be measured at fair value using the net asset value per share practical expedient. The ASU was effective for the 
Company for interim and annual periods beginning after December 15, 2015 and was applied retrospectively to all periods presented. 
Adoption of ASU 2015-07 did not have a material impact on the Company's consolidated financial statements.

FASB Accounting Standards Update No. 2016-01, Financial Instruments - Overall (Subtopic 825-10): Recognition and 
Measurement of Financial Assets and Financial Liabilities ("ASU 2016-01")

On January 5, 2016, the FASB issued ASU 2016-01 which requires equity investments, in general, to be measured at fair value 
with changes in fair value recognized in earnings. It also eliminates the requirement to disclose the methods and significant 
assumptions used to estimate the fair value for financial instruments measured at amortized cost, requires entities to use the exit 
price notion when measuring fair value, requires an entity to present separately in other comprehensive income the portion of 
the total change in fair value of a liability resulting from a change in the instrument-specific credit risk when the fair value 
option has been elected, requires separate presentation of financial assets and liabilities by measurement category and form on 
the balance sheet or accompanying notes, clarifies that an entity should evaluate the need for a valuation allowance on a 
deferred tax asset related to available-for-sale securities in combination with the entity's other deferred tax assets, and simplifies 
the impairment assessment of equity investments without readily determinable fair values. The ASU is effective for the 
Company for interim and annual periods beginning after December 15, 2017. Upon adoption, unrealized gains and losses from 
equity securities will be reclassified from other comprehensive income to retained earnings. As of December 31, 2016, the 
Company had $2.4 million of net unrealized gains and losses from equity securities in other comprehensive income.     

FASB Accounting Standards Update No. 2016-02, Leases (Topic 842) ("ASU 2016-02")

On February 25, 2016, the FASB issued ASU 2016-02 to increase transparency and comparability by recognizing substantially 
all lease liabilities on the balance sheet and disclosing key information about leasing arrangements. Lessees will be required to 
recognize an obligation for future lease payments measured on a discounted basis and a related right-of-use asset. The ASU is 
effective for the Company for interim and annual periods beginning after December 15, 2018 and requires transition through a 
modified retrospective approach for leases existing at or entered into after January 1, 2017. The Company is evaluating the 
impact the adoption of ASU 2016-02 will have on the Company's financial statements.

98

FASB Accounting Standards Update No. 2016-05, Derivatives and Hedging (Topic 815): Effect of Derivative Contract 
Novations on Existing Hedge Accounting Relationships ("ASU 2016-05")

On March 10, 2016, the FASB issued ASU 2016-05 which clarifies that "a change in the counterparty to a derivative instrument 
that has been designated as the hedging instrument in an existing hedging relationship would not, in and of itself, be considered 
a termination of the derivative instrument" or "a change in a critical term of the hedging relationship." If all other hedge 
accounting criteria in ASC 815 are met, a hedging relationship where the hedging derivative instrument is novated would not 
be discontinued or need to be re-designated. The ASU is effective for interim and annual periods beginning after December 15, 
2016. An entity would apply the guidance prospectively unless modified retrospective transition is elected. Early adoption is 
permitted. Adoption of ASU 2016-05 did not have a material impact on the Company's financial statements.

FASB Accounting Standards Update No. 2016-07, Investments - Equity Method and Joint Ventures ("ASU 2016-07")

On March 15, 2016, the FASB issued ASU 2016-07 to simplify the equity method of accounting by eliminating the requirement 
to retrospectively apply the equity method to an investment that subsequently qualifies for such accounting. The ASU also 
requires that unrealized holding gains or losses in accumulated other comprehensive income related to an available for sale 
security that becomes eligible for the equity method be recognized in earnings as of the date the investment qualifies for the 
equity method. The ASU was effective for all entities for fiscal years beginning after December 15, 2016, including interim 
periods within those fiscal years. Adoption of ASU 2016-07 did not have a material impact on the Company's financial 
statements.

FASB Accounting Standards Update No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to 
Employee Share-Based Payment Accounting ("ASU 2016-09")

On March 30, 2016, the FASB issued ASU 2016-09 to simplify multiple aspects of accounting for employee share-based 
payment transactions including accounting income taxes, forfeitures, and statutory tax withholding requirements. The ASU is 
effective for annual reporting periods beginning after December 15, 2016, including interim periods within those annual 
reporting periods. Implementation of ASU 2016-09 will add volatility to tax expense as stock prices change; however, we 
expect the impact on future periods to be insignificant.

FASB Accounting Standards Update No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Assets Measured at 
Amortized Cost ("ASU 2016-13")

On June 16, 2016, the FASB issued ASU 2016-13 to provide more timely recording of credit losses on loans and other financial 
instruments. The ASU requires an impairment model (known as the current expected credit loss ("CECL") model) that is based 
on expected credit losses rather than incurred credit losses. It requires measurement of all expected credit losses for financial 
assets carried at amortized cost, including loans and investment securities, based on historical experience, current conditions, 
and reasonable and supportable forecasts. ASU 2016-13 also changes the recognition of other-than-temporary impairment of 
available for sale securities to an allowance methodology from an direct write-down methodology. ASU 2016-13 will be 
effective for the Company for annual reporting periods beginning after December 15, 2019, including interim periods within 
those fiscal years. Early adoption is permitted for annual reporting periods beginning after December 15, 2018. ASU 2016-13 
will be applied through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in 
which the guidance is effective. The Company is evaluating the impact the adoption of ASU 2016-13 will have on the 
Company's financial statements.

FASB Accounting Standards Update No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash 
Receipts and Cash Payments ("ASU 2016-15")

On August 26, 2016, the FASB issued ASU 2016-15, which amends ASC 230 on the classification of certain cash receipts and 
payments in the statement of cash flows. The amendments address eight specific cash flow issues. ASU 2016-15 is effective for 
the Company for annual reporting periods beginning after December 15, 2017, including interim periods within those fiscal 
years. Entities generally must apply the guidance retrospectively to all periods presented. Adoption of ASU 2016-15 is not 
expected to have a material impact on the Company's financial statements.

99

 
FASB Accounting Standards Update No. 2016-17, Consolidation (Topic 810): Interests Held through Related Parties that are 
under Common Control ("ASU 2016-17")

On October 26, 2016, the FASB issued ASU 2016-17, which amends consolidation guidance on related parties under common 
control. The ASU requires that a single decision maker consider indirect interests held by related parties under common control 
on a proportionate basis in a manner consistent with its evaluation of indirect interests held through other related parties. ASU 
2016-17 was effective for the Company for annual reporting periods beginning after December 15, 2016, including interim and 
annual periods. Adoption of ASU 2016-17 did not have a material impact on the Company's financial statements.

(2) Securities 

Trading Securities

The fair value and net unrealized gain (loss) included in trading securities is as follows (in thousands):

December 31, 2016

December 31, 2015

Fair Value

Net
Unrealized
Gain (Loss)

Fair Value

Net
Unrealized
Gain (Loss)

U.S. government agency debentures

$

6,234

$

(4) $

61,295

$

U.S. government agency residential mortgage-backed securities

Municipal and other tax-exempt securities

Other trading securities

Total trading securities

Investment Securities

310,067

14,427

6,900

635

50

57

10,989

31,901

18,219

$

337,628

$

738

$

122,404

$

(71)

17

210

(16)

140

The amortized cost and fair values of investment securities are as follows (in thousands):

December 31, 2016

Amortized

Carrying

Cost

Value

Fair

Value

Gross Unrealized1
Loss
Gain

Municipal and other tax-exempt securities

$

320,364

$

320,364

$

321,225

$

2,272

$

(1,411)

U.S. government agency residential mortgage-backed securities

– Other

Other debt securities

20,777

205,004

20,777

205,004

21,473

222,795

767

18,115

(71)

(324)

Total investment securities
1  Gross unrealized gains and losses are not recognized in AOCI in the Consolidated Balance Sheets.

546,145

546,145

$

$

$

565,493

$

21,154

$

(1,806)

Municipal and other tax-exempt securities

$

365,258

$

365,258

$

368,910

$

3,935

$

(283)

December 31, 2015

Amortized

Carrying

Cost

Value

Fair

Value

Gross Unrealized1
Loss
Gain

U.S. government agency residential mortgage-backed securities

– Other

Other debt securities

26,721

205,745

26,833

205,745

27,874

232,375

1,063

26,689

Total investment securities
1  Gross unrealized gains and losses are not recognized in AOCI in the Consolidated Balance Sheets.

597,724

597,836

$

$

$

629,159

$

31,687

$

(22)

(59)

(364)

100

 
 
 
 
 
 
 
 
 
 
 
The amortized cost and fair values of investment securities at December 31, 2016, by contractual maturity, are as shown in the 
following table (dollars in thousands):

Less than
One Year

One to
Five Years

Six to
Ten Years

Over
Ten Years

Total

Weighted
Average
Maturity²

Municipal and other tax-exempt securities:

Carrying value

Fair value

Nominal yield¹

Other debt securities:

Carrying value

Fair value

Nominal yield

Total fixed maturity securities:

Carrying value

Fair value

Nominal yield

Residential mortgage-backed securities:

Carrying value

Fair value
Nominal yield4

Total investment securities:

Carrying value

Fair value

Nominal yield

$

$

$

83,583

83,544

$

181,596

$

180,993

$

5,909

5,836

49,276

50,852

$

320,364

321,225

1.48%

2.08%

3.31%

5.20%

2.43%

$

16,045

16,107

41,804

44,372

$

127,320

$

142,010

19,835

20,306

$

205,004

222,795

3.28%

5.14%

5.86%

4.79%

5.41%

99,628

99,651

$

223,400

$

133,229

$

225,365

147,846

69,111

71,158

$

525,368

544,020

1.77%

2.65%

5.75%

5.08%

3.59%

  $

20,777

21,473

2.76%

  $

546,145

565,493

3.56%

3.41

6.66

4.68

³

1  Calculated on a taxable equivalent basis using a 39% effective tax rate.
2  Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without 

penalty.

3  The average expected lives of residential mortgage-backed securities were 4.7 years based upon current prepayment assumptions.
4  The nominal yield on residential mortgage-backed securities is based upon prepayment assumptions at the purchase date. Actual yields earned may 
differ significantly based upon actual prepayments. See Quarterly Financial Summary - Unaudited for current yields on the investment securities 
portfolio.

101

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
—

—

—

—

—

—

(218)

—

(218)

(218)

—

—

—

—

(218)

Available for Sale Securities 

The amortized cost and fair value of available for sale securities are as follows (in thousands):

December 31, 2016

Amortized

Cost

Fair

Value

Gross Unrealized1
Loss
Gain

OTTI²

$

1,000

$

999

$

41,050

40,993

— $

343

(1) $

(400)

U.S. Treasury securities

Municipal and other tax-exempt securities

Residential mortgage-backed securities:

U.S. government agencies:

FNMA

FHLMC

GNMA

Total U.S. government agencies

Private issue:

Alt-A loans

Jumbo-A loans

Total private issue

3,062,525

1,534,451

878,375

3,055,676

1,531,116

873,594

5,475,351

5,460,386

44,245

56,947

101,192

51,512

64,023

115,535

25,066

8,475

2,259

35,800

7,485

7,092

14,577

50,377

5,472

—

2,913

1,060

(31,915)

(11,810)

(7,040)

(50,765)

—

(16)

(16)

(50,781)

(23,289)

(248)

—

(127)

Total residential mortgage-backed securities

5,576,543

5,575,921

Commercial mortgage-backed securities guaranteed by U.S.

government agencies

Other debt securities

Perpetual preferred stock

Equity securities and mutual funds

3,035,750

3,017,933

4,400

15,561

17,424

4,152

18,474

18,357

Total available for sale securities
$ 8,691,728
1  Gross unrealized gain/loss recognized in AOCI in the consolidated balance sheet.
2   Amounts represent unrealized loss that remains in AOCI after an other-than-temporary credit loss has been recognized in income.

8,676,829

60,165

$

$

$

(74,846) $

102

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
—

—

—

—

—

—

(387)

(440)

(827)

(827)

—

—

—

—

(827)

Amortized

Cost

Fair

Value

December 31, 2015

Gross Unrealized¹

Gain

Loss

OTTI²

$

1,000

$

995

$

56,681

56,817

— $

873

(5) $

(737)

U.S. Treasury securities

Municipal and other tax-exempt securities

Residential mortgage-backed securities:

U.S. government agencies:

FNMA

FHLMC

GNMA

Total U.S. government agencies

Private issue:

Alt-A loans

Jumbo-A loans

Total private issue

3,156,214

1,940,915

763,967

3,187,215

1,949,335

761,801

5,861,096

5,898,351

56,387

71,724

128,111

62,574

76,544

139,118

41,502

14,727

2,385

58,614

6,574

5,260

11,834

70,448

5,396

—

2,501

752

(10,501)

(6,307)

(4,551)

(21,359)

—

—

—

(21,359)

(18,644)

(249)

—

(40)

Total residential mortgage-backed securities

5,989,207

6,037,469

Commercial mortgage-backed securities guaranteed by U.S.

government agencies

Other debt securities

Perpetual preferred stock

Equity securities and mutual funds

2,919,044

2,905,796

4,400

17,171

17,121

4,151

19,672

17,833

Total available for sale securities
9,004,624
1   Gross unrealized gain/loss recognized in AOCI in the consolidated balance sheet.
2   Amounts represent unrealized loss that remains in AOCI after an other-than-temporary credit loss has been recognized in income.

9,042,733

79,970

$

$

$

$

(41,034) $

103

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The amortized cost and fair values of available for sale securities at December 31, 2016, by contractual maturity, are as shown in the 
following table (dollars in thousands): 

U.S. Treasury securities:

Amortized cost

Fair value

Nominal yield

Municipal and other tax-exempt securities:

Amortized cost

Fair value

Nominal yield¹

Commercial mortgage-backed securities:

Amortized cost

Fair value

Nominal yield

Other debt securities:

Amortized cost

Fair value

Nominal yield

Total fixed maturity securities:

Amortized cost

Fair value

Nominal yield

Residential mortgage-backed securities:

Amortized cost

Fair value
Nominal yield4

Perpetual preferred stock. equity securities

and mutual funds:

Amortized cost

Fair value

Nominal yield

Total available-for-sale securities:

Amortized cost

Fair value

Nominal yield

Less than
One Year

One to
Five Years

Six to
Ten Years

Over
Ten Years

Total

Weighted
Average
Maturity5

$

— $

1,000

$

— $

—

—%

999

0.87%

—

—%

$

—

—

—%

9,848

9,903

12,254

12,399

2,103

2,151

4.81%

4.01%

3.47%

16,845

16,540

2.28% 6

1,000

999

0.87%

41,050

40,993

3.46%

31,910

31,856

921,981

920,108

1,832,535

1,820,627

249,324

245,342

3,035,750

3,017,933

1.00%

1.79%

1.85%

1.82%

1.81%

—

—

—%

—

—

—%

—

—

—%

4,400

4,152

1.71%

4,400

4,152

1.71%

1.04

7.95

6.90

30.66

$

41,758

41,759

$

935,235

$ 1,834,638

$

270,569

$

3,082,200

6.95

933,506

1,822,778

266,034

3,064,077

1.89%

1.82%

1.85%

1.84%

1.83%

2

³

$

5,576,543

5,575,921

1.86%

$

32,985

36,831

—%

$

8,691,728

8,676,829

1.84%

1  Calculated on a taxable equivalent basis using a 39% effective tax rate.
2  The average expected lives of mortgage-backed securities were 3.9 years based upon current prepayment assumptions.
3  Primarily common stock and preferred stock of corporate issuers with no stated maturity.
4  The nominal yield on mortgage-backed securities is based upon prepayment assumptions at the purchase date. Actual yields earned may differ 
significantly based upon actual prepayments. See Quarterly Financial Summary –– Unaudited following for current yields on available for sale 
securities portfolio.

5  Expected maturities may differ from contractual maturities, because borrowers may have the right to call or prepay obligations with or without 

penalty.

6  Nominal yield on municipal and other tax-exempt securities and other debt securities with contractual maturity dates over ten years are based on 

variable rates which generally are reset within 35 days. 

104

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Sales of available for sale securities resulted in gains and losses as follows (in thousands):

Proceeds

Gross realized gains

Gross realized losses

Related federal and state income tax expense

Year Ended December 31,

2016

2015

2014

$

899,381

$

1,600,380

2,664,740

11,696

(21)

4,542

15,849

(3,791)

4,691

24,923

(23,384)

599

A summary of investment and available for sale securities that have been pledged as collateral for repurchase agreements, public trust 
funds on deposit and for other purposes, as required by law was as follows (in thousands):

Investment:

Carrying value

Fair value

Available for sale:

Amortized cost

Fair value

The secured parties do not have the right to sell or re-pledge these securities. 

December 31,

2016

2015

$

322,208

$

323,808

231,033

234,382

7,353,116

7,327,470

6,831,743

6,849,524

105

 
Temporarily Impaired Securities as of December 31, 2016
(In thousands)

Investment:

Municipal and other tax-exempt

securities

U.S. government agency residential

mortgage-backed securities – Other

Other debt securities

Total investment securities

Available for sale:

U.S. Treasury securities

Municipal and other tax-exempt

securities

Residential mortgage-backed

securities:

U.S. government agencies:

FNMA

FHLMC

GNMA

Total U.S. agencies
Private issue1:
Alt-A loans

Jumbo-A loans

Total private issue

Total residential mortgage-backed

securities

Commercial mortgage-backed securities

guaranteed by U.S. government
agencies

Other debt securities

Perpetual preferred stock

Equity securities and mutual funds

Number
of
Securities

Less Than 12 Months

12 Months or Longer

Total

Fair
Value

Unrealized
Loss

Fair
Value

Unrealized
Loss

Fair
Value

Unrealized
Loss

151

$

219,892

$

1,316

$

4,333

$

95

$

224,225

$

1,411

1

41

4,358

11,820

71

322

—

855

193

$

236,070

$

1,709

$

5,188

$

—

2

97

4,358

12,675

71

324

$

241,258

$

1,806

Number
of
Securities

Less Than 12 Months

12 Months or Longer

Total

Fair
Value

Unrealized
Loss

Fair
Value

Unrealized
Loss

Fair
Value

Unrealized
Loss

1

24

$

$

999

15,666

$

$

1

22

$

$

— $

— $

999

$

4,689

$

378

20,355

91

58

31

1,787,644

964,017

548,637

180

3,300,298

5

1

6

7,931

—

7,931

30,238

11,210

6,145

47,593

174

—

174

72,105

18,307

25,796

116,208

7,410

6,098

13,508

1,677

1,859,749

600

895

982,324

574,433

3,172

3,416,506

44

16

60

15,341

6,098

21,439

1

400

31,915

11,810

7,040

50,765

218

16

234

186

3,308,229

47,767

129,716

3,232

3,437,945

50,999

171

2

—

104

1,904,584

22,987

—

—

2,127

—

—

41

38,875

4,152

—

817

302

248

—

86

1,943,459

23,289

4,152

—

2,944

248

—

127

75,064

Total available for sale securities
1  Includes securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income.

$ 5,409,854

$ 5,231,605

178,249

70,818

4,246

488

$

$

$

$

106

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Temporarily Impaired Securities as of December 31, 2015
(In thousands)

Number
of
Securities

Less Than 12 Months

12 Months or Longer

Total

Fair
Value

Unrealized
Loss

Fair
Value

Unrealized
Loss

Fair
Value

Unrealized
Loss

Investment:

Municipal and other tax- exempt

securities

U.S. government agency residential

mortgage-backed securities – Other

Other debt securities

Total investment securities

73

$

127,319

$

206

$

13,380

$

77

$

140,699

$

1

11

85

5,533

1,082

22

41

—

1,715

$

133,934

$

269

$

15,095

$

—

18

95

5,533

2,797

$

149,029

$

283

22

59

364

Available for sale:

U.S. Treasury securities

Municipal and other tax-exempt

securities

Residential mortgage-backed

securities:

U. S. government agencies:

FNMA

FHLMC

GNMA

Total U.S. agencies
Private issue1:
Alt-A loans

Jumbo-A loans

Total private issue

Total residential mortgage-backed

securities

Commercial mortgage-backed

securities guaranteed by U.S.
government agencies

Other debt securities

Perpetual preferred stock

Equity securities and mutual funds

Number
of
Securities

Less Than 12 Months

12 Months or Longer

Total

Fair
Value

Unrealized
Loss

Fair
Value

Unrealized
Loss

Fair
Value

Unrealized
Loss

1

20

$

$

995

9,909

$

$

5

27

$

$

— $

— $

995

$

11,664

$

710

21,573

55

40

15

1,188,022

726,713

364,919

110

2,279,654

4

8

12

—

—

—

10,262

4,827

1,951

17,040

—

—

—

18,236

77,545

102,109

197,890

9,264

8,482

17,746

239

1,480

2,600

4,319

387

440

827

1,206,258

804,258

467,028

2,477,544

9,264

8,482

17,746

5

737

10,501

6,307

4,551

21,359

387

440

827

122

2,279,654

17,040

215,636

5,146

2,495,290

22,186

213

1,582,469

11,419

2

—

61

—

—

782

—

—

5

484,258

4,151

—

991

7,225

249

—

35

2,066,727

18,644

4,151

—

1,773

249

—

40

41,861

Total available for sale securities
1  Includes securities for which an unrealized loss remains in AOCI after an other-than-temporary credit loss has been recognized in income.

$ 4,590,509

$ 3,873,809

716,700

28,496

13,365

419

$

$

$

$

For debt securities, management determines whether it intends to sell or if it is more-likely-than-not that it will be required to sell 
impaired securities.  Based on this evaluation as of December 31, 2016, we do not intend to sell any impaired available for sale 
securities before fair value recovers to our current amortized cost and it is more-likely-than-not that we will not be required to sell 
impaired securities before fair value recovers, which may be maturity.

107

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
At December 31, 2016, the composition of the Company’s investment and available for sale securities portfolios by the lowest current 
credit rating assigned by any of the three nationally-recognized rating agencies is as follows (in thousands):

AAA - AA

A - BBB

Below Investment
Grade

Not Rated

Total

Carrying
Value

Fair
Value

Carrying
Value

Fair
Value

Carrying
Value

Fair
Value

Carrying
Value

Fair
Value

Carrying
Value

Fair
Value

Investment:

Municipal and other tax-exempt

$ 193,931

$193,834

$

6,028

$ 6,037

$

— $

— $ 120,405

$

121,354

$

320,364

$

321,225

U.S. government agency residential 
mortgage-backed securities1

Other debt securities

—

—

140,184

156,641

—

—

—

—

—

—

—

—

20,777

64,820

21,473

66,154

20,777

205,004

21,473

222,795

Total investment securities

$ 334,115

$350,475

$

6,028

$ 6,037

$

— $

— $ 206,002

$

208,981

$

546,145

$

565,493

AAA - AA

A - BBB

Below Investment
Grade

Not Rated

Total

Amortized
Cost

Fair
Value

Amortized
Cost

Fair
Value

Amortized
Cost

Fair
Value

Amortized
Cost

Fair Value

Amortized
Cost

Fair
Value

Available for Sale:

U.S. Treasury securities

$

— $

— $

— $

— $

— $

— $

1,000

$

999

$

1,000

$

999

Municipal and other tax-exempt

23,343

23,657

5,595

5,237

U.S. government agency residential 
mortgage-backed securities1

Privately issued residential mortgage-backed

securities

Commercial mortgage-backed securities

guaranteed by U.S. government agencies

Other debt securities

Perpetual preferred stock

Equity securities and mutual funds

—

—

—

—

—

—

4,400

4,152

—

4

—

759

—

—

—

—

—

—

—

—

—

—

—

12,112

12,099

41,050

40,993

— 5,475,351

5,460,386

5,475,351

5,460,386

101,192

115,535

—

—

101,192

115,535

—

—

—

— 3,035,750

3,017,933

3,035,750

3,017,933

4,796

5,177

10,765

13,297

—

—

—

—

17,420

17,598

—

—

—

—

4,400

15,561

17,424

4,152

18,474

18,357

Total available for sale securities
$ 8,676,829
1  U.S. government and government sponsored enterprises are not rated by the nationally-recognized rating agencies as these securities are guaranteed by agencies of the U.S. government or 

$ 8,691,728

$ 8,509,015

$ 8,541,633

$ 111,957

$128,832

$ 28,568

$ 10,414

10,391

27,747

$

$

government-sponsored enterprises.

At December 31, 2016, the entire portfolio of privately issued residential mortgage-backed securities was rated below investment 
grade by at least one of the nationally-recognized rating agencies. The gross unrealized loss on these securities totaled $234 thousand. 
Impairment of these securities was evaluated based on projections of estimated cash flows. 

The primary assumptions used in this evaluation were:

Unemployment rate

Housing price appreciation/depreciation

Estimated liquidation costs

Discount rates

1  Federal Housing Finance Agency

December 31,

2016

2015

Decreasing to 4.6% over the next 12
months and remain at 4.6% thereafter.

Decreasing to 4.8% over the next 12
months and remain at 4.8% thereafter.

Starting with current depreciated 
housing prices based on information 
derived from the FHFA1, appreciating 
3.1% over the next 12 months, then 
flat for the following 12 months and 
then appreciating at 2% per year 
thereafter.

Starting with current depreciated 
housing prices based on information 
derived from the FHFA1, appreciating 
3.5% over the next 12 months, then 
flat for the following 12 months and 
then appreciating at 2% per year 
thereafter.

Reflect actual historical liquidations
costs observed on Jumbo and Alt-A
residential mortgage loans in securities
owned by the Company.

Reflect actual historical liquidations
costs observed on Jumbo and Alt-A
residential mortgage loans in securities
owned by the Company.

Estimated cash flows were discounted
at rates that range from 2.00% to
6.25% based on our current expected
yields.

Estimated cash flows were discounted
at rates that range from 2.00% to
6.25% based on our current expected
yields.

108

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The Company recognized no credit loss impairment on private-label residential mortgage-backed securities in earnings during 2016. 
Credit loss impairment of $157 thousand was recognized in earnings on private-label residential mortgage-backed securities in 2015 
and none was recognized in 2014.

Impaired equity securities, including perpetual preferred stocks, are evaluated based on management's ability and intent to hold the 
securities until fair value recovers. Based on this evaluation, no other-than-temporary impairment losses were recorded in earnings on 
equity securities during 2016. A $1.7 million other-than-temporary impairment loss related to equity securities was recorded in 
earnings in 2015 and $373 thousand in impairment losses were recognized on equity securities in 2014.

The following is a tabular roll forward of the amount of credit-related OTTI recognized on available for sale debt securities in 
earnings (in thousands):

Balance of credit-related OTTI recognized on available for sale debt, beginning of period

$

54,504

$

54,347

$

67,346

Additions for credit-related OTTI not previously recognized

Additions for increases in credit-related OTTI previously recognized when there is no intent to sell and

no requirement to sell before recovery of amortized cost

Reductions for change in intent to hold before recovery

Sales

—

—

—

—

—

157

—

—

—

—

—

(12,999)

Balance of credit-related OTTI recognized on available for sale debt securities, end of period

$

54,504

$

54,504

$

54,347

Year Ended December 31,

2016

2015

2014

Fair Value Option Securities

Fair value option securities represent securities which the Company has elected to carry at fair value and separately identified on the 
Consolidated Balance Sheets with changes in the fair value recognized in earnings as they occur. Certain residential mortgage-backed 
securities issued by U.S. government agencies and derivative contracts are held as an economic hedge of the mortgage servicing 
rights. 

The fair value and net unrealized gain (loss) included in Fair value option securities is as follows (in thousands):

U.S. government agency residential mortgage-backed securities

$

77,046

$

(1,777) $

444,217

$

(2,060)

December 31, 2016

December 31, 2015

Fair Value

Net
Unrealized
Gain (Loss)

Fair Value

Net
Unrealized
Gain (Loss)

Restricted Equity Securities

Restricted equity securities include stock we are required to hold as members of the Federal Reserve system and the Federal Home 
Loan Banks ("FHLB"). Restricted equity securities are carried at cost as these securities do not have a readily determined fair value 
because ownership of these shares is restricted and they lack a market. A summary of restricted equity securities follows (in 
thousands):

Federal Reserve Bank stock

Federal Home Loan Bank stock

Other

Total

109

December 31,

2016

2015

$

$

36,498

$

270,541

201

36,148

237,365

171

307,240

$

273,684

 
 
 
 
(3) Derivatives 

The following table summarizes the fair values of derivative contracts recorded as “derivative contracts” assets and liabilities in 
the balance sheet at December 31, 2016 (in thousands):

Assets

Notional1

Gross
Fair
Value

Netting
Adjustments

Net Fair
Value
Before
Cash
Collateral

Cash
Collateral

Fair Value
Net of Cash
Collateral

$ 16,949,152

$ 180,695

$

(60,555) $ 120,140

$

— $

120,140

1,403,408

835,566

53,209

580,886

100,924

34,442

64,140

1,382

494,349

4,357

—

(28,298)

(515)

—

—

34,442

35,842

867

494,349

4,357

(4,567)

(71)

—

(5,183)

(730)

Customer risk management programs:

Interest rate contracts

To-be-announced residential mortgage-

backed securities

Interest rate swaps

Energy contracts

Agricultural contracts

Foreign exchange contracts

Equity option contracts

Total customer risk management programs

19,923,145

779,365

(89,368)

689,997

(10,551)

Internal risk management programs

2,514,169

10,426

—

10,426

—

Total derivative contracts

$ 22,437,314

$ 789,791

$

(89,368) $ 700,423

$ (10,551) $

689,872

Liabilities

Notional¹

Gross
Fair
Value

Netting
Adjustments

Net Fair
Value
Before
Cash
Collateral

Cash
Collateral

Fair Value
Net of Cash
Collateral

$ 16,637,532

$ 176,928

$

(60,555) $ 116,373

$

— $

116,373

1,403,408

820,365

53,216

580,712

100,924

34,442

64,306

1,365

494,695

4,357

—

(28,298)

(515)

—

—

34,442

36,008

850

494,695

4,357

(11,977)

(31,534)

(769)

(3,630)

—

Customer risk management programs:

Interest rate contracts

To-be-announced residential mortgage-

backed securities

Interest rate swaps

Energy contracts

Agricultural contracts

Foreign exchange contracts

Equity option contracts

Total customer risk management programs

19,596,157

776,093

(89,368)

686,725

(47,910)

Internal risk management programs

2,582,202

25,716

—

25,716

—

Total derivative contracts
1  Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the 

(89,368) $ 712,441

$ (47,910) $

$ 22,178,359

$ 801,809

$

664,531

contract.

When bilateral netting agreements exist between the Company and its counterparties that create a single legal claim or 
obligation to pay or receive the net amount in settlement of the individual derivative contracts, the Company reports derivative 
assets and liabilities on a net by counterparty basis. Contracts may also require the Company to provide or receive cash margin 
as collateral for derivative assets and liabilities. Derivative assets and liabilities are reported net of cash margin when certain 
conditions are met. 

110

29,875

35,771

867

489,166

3,627

679,446

10,426

22,465

4,474

81

491,065

4,357

638,815

25,716

 
 
 
 
 
 
 
 
 
 
The following table summarizes the fair values of derivative contracts recorded as “derivative contracts” assets and liabilities in 
the balance sheet at December 31, 2015 (in thousands):

Assets

Notional1

Gross
Fair
Value

Netting
Adjustments

Net Fair
Value
Before
Cash
Collateral

Cash
Collateral

Fair Value
Net of Cash
Collateral

Customer risk management programs:

Interest rate contracts

To-be-announced residential mortgage-

backed securities

Interest rate swaps

Energy contracts

Agricultural contracts

Foreign exchange contracts

Equity option contracts

$ 14,583,052

$ 43,270

$

(28,305) $

14,965

$

— $

1,332,044

470,613

61,662

546,572

137,278

31,744

83,045

2,591

498,830

3,780

—

(22,970)

(1,158)

—

—

31,744

60,075

1,433

498,830

3,780

(1,424)

(18,606)

—

(4,140)

(470)

Total customer risk management programs

17,131,221

663,260

(52,433)

610,827

(24,640)

Internal risk management programs

22,000

83

—

83

—

14,965

30,320

41,469

1,433

494,690

3,310

586,187

83

Total derivative contracts

$ 17,153,221

$ 663,343

$

(52,433) $ 610,910

$ (24,640) $

586,270

Liabilities

Notional¹

Gross
Fair
Value

Netting
Adjustments

Net Fair
Value
Before
Cash
Collateral

Cash
Collateral

Fair Value
Net of Cash
Collateral

Customer risk management programs:

Interest rate contracts

To-be-announced residential mortgage-

backed securities

Interest rate swaps

Energy contracts

Agricultural contracts

Foreign exchange contracts

Equity option contracts

$ 14,168,927

$ 40,141

$

(28,305) $

11,836

$

(1,308) $

1,332,044

463,703

61,657

546,405

137,278

31,928

81,869

2,579

498,574

3,780

—

(22,970)

(1,158)

—

—

31,928

58,899

1,421

498,574

3,780

(20,530)

—

(1,248)

(1,951)

—

Total customer risk management programs

16,710,014

658,871

(52,433)

606,438

(25,037)

Internal risk management programs

75,000

300

—

300

—

10,528

11,398

58,899

173

496,623

3,780

581,401

300

Total derivative contracts
1  Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the 

(52,433) $ 606,738

$ (25,037) $

$ 16,785,014

$ 659,171

$

581,701

contract.

111

 
 
 
 
 
 
 
 
The following summarizes the pre-tax net gains (losses) on derivative instruments and where they are recorded in the Consolidated 
Statement of Earnings (in thousands):

Year Ended December 31,

2016

2015

2014

Brokerage
and 
Trading 
Revenue

Gain (Loss)
on 
Derivatives, 
Net

Brokerage
and 
Trading
Revenue

Gain (Loss)
on 
Derivatives,
Net

Brokerage
and 
Trading
Revenue

Gain (Loss)
on 
Derivatives,
Net

Customer risk management programs:

Interest rate contracts

To-be-announced residential mortgage-

backed securities

Interest rate swaps

Energy contracts

Agricultural contracts

Foreign exchange contracts

Equity option contracts

Total customer risk management programs

Internal risk management programs

$

38,523

$

— $

33,877

$

— $

27,007

$

2,589

5,027

111

945

—

47,195

(4,592)

—

—

—

—

—

—

(15,685)

2,066

4,060

123

797

—

40,923

(209)

—

—

—

—

—

—

430

430

2,494

6,572

146

1,581

—

37,800

—

$

37,800

$

—

—

—

—

—

—

—

2,776

2,776

Total derivative contracts

$

42,603

$

(15,685) $

40,714

$

As discussed in Note 7, certain derivative contracts not designated as hedging instruments related to mortgage loan 
commitments and forward sales contracts are included in Residential mortgage loans held for sale on the Consolidated Balance 
Sheets. See Note 7 for additional discussion of notional, fair value and impact on earnings of these contracts. Forward sales 
contracts are not considered swaps under the Commodity and Futures Trading Commission final rules.

No derivative contracts have been designated as hedging instruments for financial reporting purposes.

(4) Loans and Allowances for Credit Losses 

The portfolio segments of the loan portfolio are as follows (in thousands):

December 31, 2016

Fixed
Rate

Variable
Rate

Non-
accrual

Total

Fixed
Rate

December 31, 2015

Variable
Rate

Non-
accrual

Total

Commercial

$ 2,327,085

$ 7,884,786

$ 178,953

$ 10,390,824

$ 1,850,548

$ 8,325,559

$ 76,424

$ 10,252,531

Commercial real

estate

624,187

3,179,338

Residential mortgage

1,647,357

154,971

256,255

684,697

5,521

46,220

290

3,809,046

627,678

2,622,354

1,949,832

1,598,992

839,958

91,816

216,661

460,418

9,001

61,240

463

3,259,033

1,876,893

552,697

Personal

Total

Accruing loans past 
due (90 days)1
Foregone interest on
nonaccrual loans

$ 4,753,600

$ 12,005,076

$ 230,984

$ 16,989,660

$ 4,169,034

$ 11,624,992

$ 147,128

$ 15,941,154

  $

5

$

15,990

  $

1,207

$

7,432

1  Excludes residential mortgage loans guaranteed by agencies of the U.S. government.

112

 
 
 
 
 
 
 
 
 
 
 
At December 31, 2016, loans to businesses and individuals with collateral primarily located in Texas totaled $5.4 billion or 
32% of the total loan portfolio. Loans to businesses and individuals with collateral primarily located in Oklahoma totaled $3.5 
billion or 21% of our total loan portfolio. Loans for which the collateral location is not relevant, such as unsecured loans and 
reserve-based energy loans, are distributed by the borrower’s primary operating location. These geographic concentrations 
subject the loan portfolio to the general economic conditions within these areas. At December 31, 2015, loans to businesses and 
individuals with collateral primarily located in Texas totaled $5.3 billion or 33% of the loan portfolio and loans to businesses 
and individuals with collateral primarily located in Oklahoma totaled $3.9 billion or 24% of the loan portfolio.

Commercial

Commercial loans represent loans for working capital, facilities acquisition or expansion, purchases of equipment and other 
needs of commercial customers primarily located within our geographical footprint. Commercial loans are underwritten 
individually and represent on-going relationships based on a thorough knowledge of the customer, the customer’s industry and 
market. While commercial loans are generally secured by the customer’s assets including real property, inventory, accounts 
receivable, operating equipment, interest in mineral rights and other property and may also include personal guarantees of the 
owners and related parties, the primary source of repayment of the loans is the on-going cash flow from operations of the 
customer’s business. Inherent lending risk is centrally monitored on a continuous basis from underwriting throughout the life of 
the loan for compliance with commercial lending policies.

At December 31, 2016, commercial loans with collateral primarily located in Texas totaled $3.3 billion or 32% of the 
commercial loan portfolio segment and commercial loans with collateral primarily located in Oklahoma totaled $2.1 billion or 
21% of the commercial loan portfolio segment. The commercial loan portfolio segment is further divided into loan classes. The 
services loan class totaled $3.1 billion or 18% of total loans. Approximately $1.4 billion of loans in the services class consisted 
of loans with individual balances of less than $10 million. Businesses included in the services class include governmental, 
financial & insurance, educational, religious and not-for-profit and professional/technical services. The energy loan class 
totaled $2.5 billion or 15% of total loans, including $2.0 billion of outstanding loans to energy producers. Approximately 57% 
of committed production loans were secured by properties primarily producing oil and 43% are secured by properties 
producing natural gas. The healthcare loan class totaled $2.2 billion or 13% of total loans. The healthcare loan class consists 
primarily of loans for the development and operation of senior housing and care facilities, including independent living, 
assisted living and skilled nursing. Healthcare also includes loans to hospitals and other medical service providers. 

At December 31, 2015, commercial loans with collateral primarily located in Texas totaled $3.5 billion or 34% of the 
commercial loan portfolio segment and commercial loans with collateral primarily located in Oklahoma totaled $2.5 billion or 
24% of the commercial loan portfolio segment. The energy loan class totaled $3.1 billion or 19% of total loans, including $2.5 
billion of outstanding loans to energy producers. At December 31, 2015, approximately 62% of committed production loans 
were secured by properties primarily producing oil and 38% were secured by properties producing natural gas. The services 
loan class totaled $2.8 billion or 17% of total loans. Approximately $1.2 billion of loans in the services category consisted of 
loans with individual balances of less than $10 million. The healthcare loan class totaled $1.9 billion or 12% of total loans.

Commercial Real Estate

Commercial real estate loans are for the construction of buildings or other improvements to real estate and property held by 
borrowers for investment purposes primarily within our geographical footprint. We require collateral values in excess of the 
loan amounts, demonstrated cash flows in excess of expected debt service requirements, equity investment in the project and a 
portion of the project already sold, leased or permanent financing already secured. The expected cash flows from all significant 
new or renewed income producing property commitments are stress tested to reflect the risks in varying interest rates, vacancy 
rates and rental rates. As with commercial loans, inherent lending risks are centrally monitored on a continuous basis from 
underwriting throughout the life of the loan for compliance with applicable lending policies.

At December 31, 2016, 30% of commercial real estate loans are secured by properties primarily located in the Dallas and 
Houston areas of Texas. An additional 11% of commercial real estate loans are secured by properties located primarily in the 
Tulsa and Oklahoma City metropolitan areas of Oklahoma. At December 31, 2015, 30% of commercial real estate loans were 
secured by properties in Texas, 13% of commercial real estate loans were secured by properties in Oklahoma.

113

Residential Mortgage and Personal

Residential mortgage loans provide funds for our customers to purchase or refinance their primary residence or to borrow 
against the equity in their home. Residential mortgage loans are secured by a first or second mortgage on the customer’s 
primary residence. Personal loans consist primarily of loans secured by the cash surrender value of insurance policies and 
marketable securities. It also includes direct loans secured by and for the purchase of automobiles, recreational and marine 
equipment as well as other unsecured loans. Residential mortgage and personal loans are made in accordance with underwriting 
policies. Credit scoring is assessed based on significant credit characteristics including credit history, residential and 
employment stability. Residential mortgage loans retained in the Company’s portfolio are primarily composed of various 
mortgage programs to support customer relationships including jumbo mortgage loans, non-builder construction loans and 
special loan programs for high net worth individuals and certain professionals. Jumbo loans may be fixed or variable rate and 
are fully amortizing. Jumbo loans generally conform to government sponsored entity standards, except that the loan size 
exceeds maximums required under these standards. These loans generally require a minimum FICO score of 720 and a 
maximum debt-to-income ratio (“DTI”) of 38%. Loan-to-value (“LTV”) ratios are tiered from 60% to 100%, depending on the 
market. Special mortgage programs include fixed and variable fully amortizing loans tailored to the needs of certain healthcare 
professionals. Variable rate loans are fully indexed at origination and may have fixed rates for three to ten years, then adjust 
annually thereafter. 

At December 31, 2016 and 2015, residential mortgage loans included $199 million and $197 million, respectively, of loans 
guaranteed by U.S. government agencies previously sold into GNMA mortgage pools. These loans either have been 
repurchased or are eligible to be repurchased by the Company when certain defined delinquency criteria are met. Although 
payments on these loans generally are past due more than 90 days, interest continues to accrue based on the government 
guarantee.

Home equity loans totaled $744 million at December 31, 2016 and $735 million at December 31, 2015. At December 31, 2016, 
65% of the home equity loan portfolio was comprised of first lien loans and 35% of the home equity portfolio was comprised 
of junior lien loans. Junior lien loans were distributed 52% to amortizing term loans and 48% to revolving lines of credit. At 
December 31, 2015, 68% of the home equity portfolio was comprised of first lien loans and 32% of the home equity loan 
portfolio was comprised of junior lien loans. Junior lien loans were distributed 65% to amortizing term loans and 35% to 
revolving lines of credit. Home equity loans generally require a minimum FICO score of 700 and a maximum DTI of 40%. The 
maximum loan amount available for our home equity loan products is generally $400 thousand. Revolving loans have a 5 year 
revolving period followed by 15 year term of amortizing repayments. Interest-only home equity loans may not be extended for 
any additional revolving time. All other home equity loans may be extended at management's discretion for an additional 5 year 
revolving term subject to an update of certain credit information.

At December 31, 2016, 33% of residential mortgage loans are secured by properties located in Oklahoma, 29% of residential 
mortgage loans are secured by properties located in Texas, 10% of residential mortgage are secured by properties located in 
New Mexico and 10% of residential mortgage are secured by properties located in Colorado. At December 31, 2015, 37% of 
residential mortgage loans were secured by properties in Oklahoma, 29% of residential mortgage were secured by properties in 
Texas, 12% of residential mortgage loans are secured by properties in New Mexico and 9% of residential mortgage loans are 
secured by properties in Colorado.

Credit Commitments

Commitments to extend credit are agreements to lend to a customer as long as there is no violation of conditions established in 
the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a 
fee. At December 31, 2016, outstanding commitments totaled $9.4 billion. Because some commitments are expected to expire 
before being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. BOK Financial 
uses the same credit policies in making commitments as it does loans.

The amount of collateral obtained, if deemed necessary, is based upon management’s credit evaluation of the borrower.

114

 
Standby letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. 
Because the credit risk involved in issuing standby letters of credit is essentially the same as that involved in extending loan 
commitments, BOK Financial uses the same credit policies in evaluating the creditworthiness of the customer. Additionally, 
BOK Financial uses the same evaluation process in obtaining collateral on standby letters of credit as it does for loan 
commitments. The term of these standby letters of credit is defined in each commitment and typically corresponds with the 
underlying loan commitment. At December 31, 2016, outstanding standby letters of credit totaled $585 million. Commercial 
letters of credit are used to facilitate customer trade transactions with the drafts being drawn when the underlying transaction is 
consummated. At December 31, 2016, outstanding commercial letters of credit totaled $4.2 million.

Allowances for Credit Losses

BOK Financial maintains an allowance for loan losses and an accrual for off-balance sheet credit risk. The accrual for off-
balance sheet credit risk is maintained at a level that is appropriate to cover estimated losses associated with credit instruments 
that are not currently recognized as assets such as loan commitments, standby letters of credit or guarantees. As discussed in 
greater detail in Note 7, the Company also has separate accruals related to off-balance sheet credit risk related to residential 
mortgage loans previously sold with full or partial recourse and for residential mortgage loans sold to government sponsored 
agencies under standard representations and warranties.

The allowance for loan losses consists of specific allowances attributed to impaired loans that have not yet been charged down 
to amounts we expect to recover, general allowances for unimpaired loans based on estimated loss rates by loan class and 
nonspecific allowances based on general economic conditions, concentration in loans with large balances and other relevant 
factors.

The activity in the allowance for loan losses and the accrual for off-balance sheet credit risk related to loan commitments and 
standby letters of credit for the year ended December 31, 2016 is summarized as follows (in thousands):

Allowance for loan losses:

Beginning balance

Provision for loan losses

Loans charged off

Recoveries

Ending balance

Commercial

Commercial
Real Estate

Residential
Mortgage

Personal

Nonspecific
Allowance

Total

$

130,334

$

41,391

$

19,509

$

4,164

$

30,126

$

225,524

43,980

(35,828)

1,727

8,075

—

1,283

(1,972)

(1,312)

1,999

7,310

(5,448)

2,747

(1,926)

—

—

55,467

(42,588)

7,756

$

140,213

$

50,749

$

18,224

$

8,773

$

28,200

$

246,159

Accrual for off-balance sheet

credit risk:

Beginning balance

Provision for off-balance sheet credit

risk

Ending balance

Total provision for credit losses

$

$

$

1,506

9,557

11,063

53,537

$

$

$

153

$

30

$

22

$

— $

1,711

(30)

123

8,045

$

$

20

50

$

(14)

8

(1,952) $

7,296

—

— $

9,533

11,244

(1,926) $

65,000

$

$

115

 
 
 
 
 
 
 
 
 
 
 
 
 
The activity in the allowance for loan losses and the accrual for off-balance sheet credit risk related to loan commitments and 
standby letters of credit for the year ended December 31, 2015 is summarized as follows (in thousands):

Allowance for loan losses:

Beginning balance

Provision for loan losses

Loans charged off

Recoveries

Ending balance

Commercial

Commercial
Real Estate

Residential
Mortgage

Personal

Nonspecific
Allowance

Total

$

90,875

$

42,445

$

23,458

$

4,233

$

28,045

$

189,056

43,464

(6,734)

2,729

(11,189)

(944)

11,079

(3,004)

(2,205)

1,260

2,167

(5,288)

3,052

2,081

—

—

33,519

(15,171)

18,120

$

130,334

$

41,391

$

19,509

$

4,164

$

30,126

$

225,524

Accrual for off-balance sheet credit

risk:

Beginning balance

Provision for off-balance sheet credit

risk

Ending balance

Total provision for credit losses

$

$

$

475

$

707

$

28

$

20

$

— $

1,230

1,031

1,506

44,495

$

$

(554)

153

$

2

30

$

2

22

(11,743) $

(3,002) $

2,169

—

— $

481

1,711

2,081

$

34,000

$

$

The activity in the allowance for loan losses and the accrual for off-balance sheet credit risk related to loan commitments and 
standby letters of credit for the year ended December 31, 2014 is summarized as follows (in thousands):

Commercial

Commercial
Real Estate

Residential
Mortgage

Personal

Nonspecific
Allowance

Total

Allowance for loan losses:

Beginning balance

Provision for loan losses

Loans charged off

Recoveries

Ending balance

Accrual for off-balance sheet credit

risk:

Beginning balance

Provision for off-balance sheet credit

risk

Ending balance

Total provision for credit losses

$

$

$

$

$

79,180

$

41,573

$

29,465

$

6,965

$

28,213

$

185,396

9,561

(3,569)

5,703

(4,084)

(2,047)

7,003

(3,559)

(4,448)

2,000

(892)

(6,168)

4,328

(168)

—

—

858

(16,232)

19,034

90,875

$

42,445

$

23,458

$

4,233

$

28,045

$

189,056

119

$

1,876

$

90

$

3

$

— $

2,088

356

475

9,917

$

$

(1,169)

707

$

(62)

28

$

17

20

$

—

— $

(858)

1,230

(5,253) $

(3,621) $

(875) $

(168) $

—

116

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment 
measurement method at December 31, 2016 is as follows (in thousands):

Commercial

Commercial real estate

Residential mortgage

Personal

Total

Collectively Measured
for Impairment

Individually Measured
for Impairment

Total

Recorded
Investment

Related
Allowance

Recorded
Investment

Related
Allowance

Recorded
Investment

Related
Allowance

$ 10,211,871

$

139,416

$

178,953

$

797

$ 10,390,824

$

140,213

3,803,525

1,903,612

839,668

50,749

18,178

8,773

5,521

46,220

290

—

46

—

3,809,046

1,949,832

839,958

50,749

18,224

8,773

16,758,676

217,116

230,984

843

16,989,660

217,959

Nonspecific allowance

—

—

—

—

—

28,200

Total

$ 16,758,676

$

217,116

$

230,984

$

843

$ 16,989,660

$

246,159

The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment 
measurement method at December 31, 2015 is as follows (in thousands):

Commercial

Commercial real estate

Residential mortgage

Personal

Total

Collectively Measured
for Impairment

Individually Measured
for Impairment

Total

Recorded
Investment

Related
Allowance

Recorded
Investment

Related
Allowance

Recorded
Investment

Related
Allowance

$ 10,176,107

$

114,027

$

76,424

$

16,307

$ 10,252,531

$

130,334

3,250,032

1,815,653

552,234

41,373

19,441

4,164

9,001

61,240

463

18

68

—

3,259,033

1,876,893

552,697

41,391

19,509

4,164

15,794,026

179,005

147,128

16,393

15,941,154

195,398

Nonspecific allowance

—

—

—

—

—

30,126

Total

$ 15,794,026

$

179,005

$

147,128

$

16,393

$ 15,941,154

$

225,524

117

 
 
 
 
Credit Quality Indicators

The Company utilizes loan class and risk grading as primary credit quality indicators. Substantially all commercial and 
commercial real estate loans and certain residential mortgage and personal loans are risk graded based on a quarterly evaluation 
of the borrowers’ ability to repay the loans. Certain commercial loans and most residential mortgage and personal loans are 
small, homogeneous pools that are not risk graded. 

The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk 
graded loans at December 31, 2016 is as follows (in thousands):

Commercial

Commercial real estate

Residential mortgage

Personal

Total

Internally Risk Graded

Non-Graded

Total

Recorded
Investment

Related
Allowance

Recorded
Investment

Related
Allowance

Recorded
Investment

Related
Allowance

$ 10,360,725

$

139,293

$

30,099

$

920

$ 10,390,824

$

140,213

3,809,046

243,703

744,602

50,749

2,893

5,035

—

1,706,129

95,356

15,158,076

197,970

1,831,584

—

15,331

3,738

19,989

3,809,046

1,949,832

839,958

50,749

18,224

8,773

16,989,660

217,959

Nonspecific allowance

—

—

—

—

—

28,200

Total

$ 15,158,076

$

197,970

$

1,831,584

$

19,989

$ 16,989,660

$

246,159

The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk 
graded loans at December 31, 2015 is as follows (in thousands):

Commercial

Commercial real estate

Residential mortgage

Personal

Total

Internally Risk Graded

Non-Graded

Total

Recorded
Investment

Related
Allowance

Recorded
Investment

Related
Allowance

Recorded
Investment

Related
Allowance

$ 10,227,303

$

129,426

$

25,228

$

908

$ 10,252,531

$

130,334

3,259,033

196,701

467,955

41,391

2,883

1,390

—

1,680,192

84,742

14,150,992

175,090

1,790,162

—

16,626

2,774

20,308

3,259,033

1,876,893

552,697

41,391

19,509

4,164

15,941,154

195,398

Nonspecific allowance

—

—

—

—

—

30,126

Total

$ 14,150,992

$

175,090

$

1,790,162

$

20,308

$ 15,941,154

$

225,524

Loans are considered to be performing if they are in compliance with the original terms of the agreement which is consistent 
with the regulatory guideline of “pass.” Performing also includes loans considered to be “other loans especially mentioned” by 
regulatory guidelines and all residential mortgage loans guaranteed by agencies of the U.S. government that continue to accrue 
interest based on criteria of the guarantor's programs. Other loans especially mentioned are currently performing in compliance 
with the original terms of the agreement but may have a potential weakness that deserves management's close attention, 
consistent with regulatory guidelines.

The risk grading process identified certain loans that have a well-defined weakness (e.g. inadequate debt service coverage or 
liquidity or marginal capitalization; repayment may depend on collateral or other risk mitigation) that may jeopardize 
liquidation of the debt and represent a greater risk due to deterioration in the financial condition of the borrower. This is 
consistent with the regulatory guideline for “substandard.” Because the borrowers are still performing in accordance with the 
original terms of the loan agreements, these loans were not placed in nonaccruing status. 

118

 
 
 
 
 
Nonaccruing loans represent loans for which full collection of principal and interest in accordance with the original terms of the 
loan agreements is uncertain. This is substantially the same criteria used to determine whether a loan is impaired and includes 
certain loans considered “substandard” and all loans considered “doubtful” by regulatory guidelines.

The following table summarizes the Company’s loan portfolio at December 31, 2016 by the risk grade categories (in 
thousands): 

Internally Risk Graded

Non-Graded

Performing

Other
Loans
Especially
Mentioned

Pass

Accruing

Substandard Nonaccrual

Performing Nonaccrual

Total

Commercial:

Energy

Services

Wholesale/retail

Manufacturing

Healthcare

Other commercial and

industrial

Total commercial

Commercial real estate:

Residential construction
and land development

Retail

Office

Multifamily

Industrial

Other commercial real
estate

Total commercial real
estate

Residential mortgage:

$ 1,937,790

$

119,583

$

307,996

$

132,499

3,052,002

1,535,463

468,314

2,140,458

433,789

9,567,816

131,630

756,418

798,462

898,800

871,673

336,488

10,960

16,886

26,532

44,472

5,309

223,742

—

4,745

—

—

—

—

37,855

13,062

15,198

16,161

8,173

11,407

4,931

825

—

—

—

—

—

—

390,272

21,060

178,895

30,041

30,041

470

399

—

4,434

—

6

3,433

326

426

38

76

1,222

5,521

—

—

—

—

—

—

—

3,793,471

4,745

5,309

— $ 2,497,868

—

—

—

—

58

58

—

—

—

—

—

—

—

3,108,990

1,576,818

514,975

2,201,916

490,257

10,390,824

135,533

761,888

798,888

903,272

871,749

337,716

3,809,046

Permanent mortgage

238,769

1,186

2,331

1,417

741,679

21,438

1,006,820

Permanent mortgages
guaranteed by U.S.
government agencies

Home equity

Total residential
mortgage

Personal

Total

—

—

—

—

—

—

—

—

187,541

732,106

11,846

11,519

199,387

743,625

238,769

1,186

2,331

1,417

1,661,326

44,803

1,949,832

743,451

—

1,054

97

95,163

193

839,958

$ 14,343,507

$

229,673

$

398,966

$

185,930

$ 1,786,530

$

45,054

$ 16,989,660

119

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The following table summarizes the Company’s loan portfolio at December 31, 2015 by the risk grade categories (in thousands): 

Internally Risk Graded

Non-Graded

Performing
Other
Loans
Especially
Mentioned

Pass

Accruing

Substandard Nonaccrual

Performing Nonaccrual

Total

$ 2,580,694

$

325,663

$

129,782

61,189

$

— $

— $

3,097,328

2,763,929

1,394,596

534,966

1,876,745

477,551

9,628,481

154,369

788,708

636,210

744,299

563,093

347,864

3,296

18,184

19,560

5,563

5,479

377,745

1,355

6,046

291

—

—

—

6,761

6,365

1,872

—

—

144,780

293

426

555

6,512

—

11

3,234,543

7,692

7,797

10,290

2,919

331

1,072

496

76,297

4,409

1,319

651

274

76

2,272

9,001

—

—

—

—

25,101

25,101

—

—

—

—

—

—

—

—

—

—

—

127

127

—

—

—

—

—

—

—

2,784,276

1,422,064

556,729

1,883,380

508,754

10,252,531

160,426

796,499

637,707

751,085

563,169

350,147

3,259,033

Commercial:

Energy

Services

Wholesale/retail

Manufacturing

Healthcare

Other commercial and

industrial

Total commercial

Commercial real estate:

Residential construction
and land development

Retail

Office

Multifamily

Industrial

Other commercial real

estate

Total commercial real

estate

Residential mortgage:

Permanent mortgage

192,367

Permanent mortgages
guaranteed by U.S.
government agencies

Home equity

Total residential
mortgage

Personal

Total

—

—

192,367

467,808

89

—

—

89

3

1,932

2,313

721,964

26,671

945,336

—

—

—

—

175,037

724,264

21,900

10,356

196,937

734,620

1,932

2,313

1,621,265

58,927

1,876,893

14

130

84,409

333

552,697

$ 13,523,199

$

385,529

$

154,523

87,741

$ 1,730,775

$

59,387

$ 15,941,154

120

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Impaired Loans

Loans are considered to be impaired when it is probable that the Company will not be able to collect all amounts due according 
to the contractual terms of the loan agreement. This includes all nonaccruing loans, all loans modified in a troubled debt 
restructuring and all loans repurchased from GNMA pools.

A summary of impaired loans follows (in thousands):

Commercial:

Energy
Services
Wholesale/retail
Manufacturing
Healthcare

Other commercial and industrial

Total commercial

Commercial real estate:

Residential construction and land

development

Retail
Office
Multifamily

Industrial

Other commercial real estate

Total commercial real estate

Residential mortgage:
Permanent mortgage

Permanent mortgage guaranteed by 

U.S. government agencies1

Home equity

Total residential mortgage

As of December 31, 2016
Recorded Investment

Total

With No
Allowance

With
Allowance

Related
Allowance

Year Ended
December 31, 2016

Average 
Recorded
Investment

Interest
Income
Recognized

$

$ 132,499
8,173
11,407
4,931
825

21,118
178,953

$

121,418
8,173
11,407
4,931
825

21,083
167,837

$

11,081
—
—
—
—

35
11,116

$

$

762
—
—
—
—

35
797

80,100
9,232
7,163
2,631
949

10,870
110,945

Unpaid
Principal
Balance

$ 146,897
11,723
17,669
5,320
1,147

29,006
211,762

4,951
530
521
1,000

76

7,349

14,427

3,433
326
426
38

76

1,222

5,521

3,433
326
426
38

76

1,222

5,521

28,830

22,855

22,809

205,564
12,611
247,005

199,387
11,519
233,761

199,387
11,519
233,715

—
—
—
—

—

—

—

46

—
—
46

—

—
—
—
—

—

—

—

46

—
—
46

—

3,921
823
539
156

76

1,747

7,262

25,920

193,889
10,937
230,746

—
—
—
—
—

—
—

—
—
—
—

—

—

—

1,255

7,759
—
9,014

Personal

332

290

290

377

—

Total
$
1  All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of 

$ 473,526

$ 418,525

407,363

349,330

11,162

843

$

$

$

$

9,014

contractual principal and interest. At December 31, 2016, $12 million of these loans are nonaccruing and $188 million are accruing based 
on the guarantee by U.S. government agencies.

Generally, no interest income is recognized on impaired loans until all principal balances, including amounts charged-off, have 
been recovered.

121

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
As of December 31, 2015

Recorded Investment

Unpaid
Principal
Balance

Total

With No
Allowance

With
Allowance

Related
Allowance

Year Ended

December 31, 2015

Average 
Recorded
Investment

Interest
Income
Recognized

$

63,910

$

61,189

$

18,330

$

42,859

$

16,115

$

31,303

$

Commercial:

Energy

Services

Wholesale/retail

Manufacturing

Healthcare

Other commercial and

industrial

Total commercial

Commercial real estate:

Residential construction and

land development

Retail

Office

Multifamily

Industrial

Other commercial real estate

Total commercial real

estate

Residential mortgage:

Permanent mortgage

Permanent mortgage 
guaranteed by U.S. 
government agencies1

Home equity

Total residential mortgage

13,449

10,290

8,582

665

1,352

8,304

96,262

8,963

1,923

937

1,192

76

8,363

21,454

2,919

331

1,072

623

76,424

4,409

1,319

651

274

76

2,272

9,001

4,409

1,319

651

274

76

2,113

8,842

37,273

28,984

28,868

202,984

10,988

251,245

196,937

10,356

236,277

196,937

10,356

236,161

9,657

2,907

331

931

623

633

12

—

141

—

148

9

—

35

—

32,779

43,645

16,307

7,746

3,534

391

1,226

777

44,977

4,854

2,622

2,035

137

38

4,092

13,778

—

—

—

—

—

—

—

—

—

—

—

—

—

—

31,914

1,242

196,827

9,960

238,701

7,814

—

9,056

515

—

—

—

—

—

—

159

159

116

—

—

116

—

—

—

—

—

—

18

18

68

—

—

68

—

Personal

489

463

463

Total
1  All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of 

278,245

322,165

369,450

297,971

43,920

16,393

$

$

$

$

$

$

$

9,056

contractual principal and interest. At December 31, 2015, $22 million of these loans are nonaccruing and $175 million are accruing based 
on the guarantee by U.S. government agencies.

122

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Troubled Debt Restructurings

A summary of troubled debt restructurings ("TDRs") by accruing status as of December 31, 2016 is as follows (in thousands):

As of December 31, 2016

Recorded
Investment

Performing
in Accordance
With Modified
Terms

Not
Performing 
in 
Accordance 
With 
Modified 
Terms

Amounts
Charged-Off
During the
Year Ended
December 31,
2016

Specific
Allowance

$

16,893

$

10,867

$

6,026

$

— $

4,401

7,527

11,291

224

607

337

6,830

11,251

224

—

53

697

40

—

607

284

36,879

29,225

7,654

690

326

143

—

—

548

1,707

14,876

6,702

5,346

26,924

237

65,747

81,370

81,370

81,370

97

326

143

—

—

548

1,114

10,175

2,241

4,458

16,874

236

593

—

—

—

—

—

593

4,701

4,461

888

10,050

1

47,449

18,298

27,289

27,289

27,289

54,081

54,081

54,081

—

—

—

—

—

—

—

—

—

—

—

—

—

46

—

—

46

—

46

—

—

—

—

—

—

—

—

4,401

—

—

—

—

—

—

—

28

—

230

258

73

4,732

—

—

—

Nonaccruing TDRs:

Commercial:

Energy

Services

Wholesale/Retail

Manufacturing

Healthcare

Other commercial and industrial

Total commercial

Commercial real estate:

Residential construction and land

development

Retail

Office

Multifamily

Industrial

Other commercial real estate

Total commercial real estate

Residential mortgage:

Permanent mortgage

Permanent mortgage guaranteed by U.S.

government agencies

Home equity

Total residential mortgage

Personal

Total nonaccruing TDRs

Accruing TDRs:

Residential mortgage:

Permanent mortgages guaranteed by U.S.

government agencies

Total residential mortgage

Total accruing TDRs

Total TDRs

$

147,117

$

74,738

$

72,379

$

46

$

4,732

123

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
A summary of troubled debt restructurings by accruing status as of December 31, 2015 is as follows (in thousands):

As of December 31, 2015

Recorded
Investment

Performing
in Accordance
With Modified
Terms

Not
Performing 
in 
Accordance 
With 
Modified 
Terms

Amounts
Charged-off
During the
Year Ended
December 31,
2015

Specific
Allowance

$

2,304

$

2,304

$

— $

— $

928

9,027

2,758

282

673

621

15,665

2,328

1,319

165

—

—

920

4,732

16,618

11,136

5,159

32,913

324

53,634

74,050

74,050

74,050

8,210

2,706

282

673

89

14,264

1,556

942

165

—

—

478

3,141

9,043

139

4,218

13,400

297

817

52

—

—

532

1,401

772

377

—

—

—

442

1,591

7,575

10,997

941

19,513

27

148

9

—

—

—

157

—

—

—

—

—

—

—

68

—

—

68

—

—

—

—

—

—

928

—

—

—

—

—

—

—

192

—

80

272

11

31,102

22,532

225

1,211

23,029

23,029

23,029

51,021

51,021

51,021

—

—

—

—

—

—

Nonaccruing TDRs:

Commercial:

Energy

Services

Wholesale/retail

Manufacturing

Healthcare

Other commercial and industrial

Total commercial

Commercial real estate:

Residential construction and land

development

Retail

Office

Multifamily

Industrial

Other commercial real estate

Total commercial real estate

Residential mortgage:

Permanent mortgage

Permanent mortgage guaranteed by U.S.

government agencies

Home equity

Total residential mortgage

Personal

Total nonaccuring TDRs

Accruing TDRs:

Residential mortgage:

Permanent mortgages guaranteed by U.S.

government agencies

Total residential mortgage

Total accruing TDRs

Total TDRs

$

127,684

$

54,131

$

73,553

$

225

$

1,211

124

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Troubled debt restructurings generally consist of interest rate concessions, payment stream concessions or a combination of 
concessions to distressed borrowers. The following table details the recorded balance of loans at December 31, 2016 by class 
that were restructured during the year ended December 31, 2016 by primary type of concession (in thousands):

Year Ended December 31, 2016

Accruing

Nonaccrual

Payment
Stream

Combination
& Other

Total

Interest
Rate

Payment
Stream

Combination
& Other

Total

Total

$

— $

— $

— $

— $

— $

16,892

$ 16,892

$ 16,892

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

11,879

—

10,042

21,921

—

—

11,879

10,042

21,921

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

9,103

9,103

—

9,103

—

—

—

—

—

—

—

—

—

25,995

25,995

25,995

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

1,036

328

1,364

1,364

—

46

979

2,077

979

2,123

22,900

2,123

1,082

3,384

4,466

26,387

—

77

77

77

$

11,879

$

10,042

$

21,921

$

— $

1,082

$

29,456

$ 30,538

$ 52,459

Commercial:

Energy

Services

Wholesale/retail

Manufacturing

Healthcare

Other commercial and

industrial

Total commercial

Commercial real estate:

Residential construction
and land development

Retail

Office

Multifamily

Industrial

Other commercial real

estate

Total commercial real

estate

Residential mortgage:

Permanent mortgage

Permanent mortgage
guaranteed by U.S.
government agencies

Home equity

Total residential
mortgage

Personal

Total

125

The following table details the recorded balance of loans by class that were restructured during the year ended December 31, 
2015 by primary type of concession (in thousands):

Year Ended December 31, 2015

Accruing

Nonaccrual

Payment
Stream

Combination
& Other

Total

Interest
Rate

Payment
Stream

Combination
& Other

Total

Total

$

— $

— $

— $

— $

— $

2,304

$ 2,304

$

2,304

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

17,717

—

10,384

28,101

—

—

17,717

10,384

28,101

—

—

—

—

—

—

673

—

673

—

—

—

—

—

—

—

—

—

57

57

—

—

—

—

—

—

—

329

—

—

—

—

—

329

7,577

7,577

7,577

—

—

—

57

—

—

673

57

—

—

673

57

9,938

10,611

10,611

—

—

—

—

—

—

—

329

329

—

—

—

—

—

—

—

—

—

—

329

329

3,004

1,051

4,055

4,055

1,264

181

4,449

1,837

1,870

3,101

2,108

31,202

2,108

4,758

9,264

37,365

—

115

115

115

$

17,717

$

10,384

$

28,101

$

730

$

4,778

$

14,811

$ 20,319

$ 48,420

Commercial:

Energy

Services

Wholesale/retail

Manufacturing

Healthcare

Other commercial and

industrial

Total commercial

Commercial real estate:

Residential construction
and land development

Retail

Office

Multifamily

Industrial

Other commercial real

estate

Total commercial real

estate

Residential mortgage:

Permanent mortgage

Permanent mortgage
guaranteed by U.S.
government agencies

Home equity

Total residential
mortgage

Personal

Total

126

The following table summarizes, by loan class, the recorded investment at December 31, 2016 and 2015, respectively of loans 
modified as TDRs within the previous 12 months and for which there was a payment default during the years ended 
December 31, 2016 and 2015, respectively (in thousands):

Year Ended

December 31, 2016

December 31, 2015

Accruing

Nonaccrual

Total

Accruing

Nonaccrual

Total

$

— $

8,593

$

8,593

$

— $

— $

Commercial:

Energy

Services

Wholesale/retail

Manufacturing

Healthcare

Other commercial and industrial

Total commercial

Commercial real estate:

Residential construction and land development

Retail

Office

Multifamily

Industrial

Other commercial real estate

Total commercial real estate

Residential mortgage:

Permanent mortgage

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

8,593

8,593

—

—

—

—

—

—

—

544

—

—

—

—

—

—

—

544

647

585

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

38

38

—

—

—

—

—

38

38

329

329

—

—

—

—

—

—

—

—

—

—

329

329

3,034

3,034

3,101

524

6,659

30,324

524

33,882

Permanent mortgage guaranteed by U.S. government

agencies

Home equity

Total residential mortgage

17,154

—

17,154

17,801

27,223

585

—

1,776

18,930

27,223

Personal

Total

—

5

5

—

13

13

$

17,154

$

10,374

$ 27,528

$

27,223

$

7,039

$ 34,262

A payment default is defined as being 30 days or more past due. The table above includes loans that experienced a payment 
default during the period, but may be performing in accordance with the modified terms as of the balance sheet date. 

127

Nonaccrual & Past Due Loans

Past due status for all loan classes is based on the actual number of days since the last payment was due according to the 
contractual terms of the loans.

A summary of loans currently performing, loans past due and accruing and nonaccrual loans as of December 31, 2016 is as follows 
(in thousands):

Current

30 to 59
Days

Past Due

60 to 89
Days

90 Days
or More

Nonaccrual

Total

— $

— $

132,499

$ 2,497,868

Commercial:

Energy

Services

Wholesale/retail

Manufacturing

Healthcare

Other commercial and industrial

$ 2,364,890

$

3,099,605

1,561,650

509,662

2,201,050

468,981

479

191

3,761

382

—

155

1,021

—

—

41

3

Total commercial

10,205,838

4,968

1,065

Commercial real estate:

Residential construction and land

development

Retail

Office

Multifamily

Industrial

Other commercial real estate

132,100

761,562

798,462

903,234

871,673

336,488

Total commercial real estate

3,803,519

—

—

—

—

—

6

6

—

—

—

—

—

—

—

Residential mortgage:

Permanent mortgage

Permanent mortgages guaranteed by

U.S. government agencies

Home equity

Total residential mortgage

Personal

Total

—

—

—

—

—

—

—

—

—

—

—

—

—

—

8,173

11,407

4,931

825

21,118

3,108,990

1,576,818

514,975

2,201,916

490,257

178,953

10,390,824

3,433

326

426

38

76

1,222

5,521

135,533

761,888

798,888

903,272

871,749

337,716

3,809,046

22,855

1,006,820

11,846

11,519

46,220

199,387

743,625

1,949,832

979,386

3,299

1,280

40,594

729,493

1,749,473

17,465

2,276

23,040

13,803

337

15,420

115,679

—

115,679

838,811

589

263

5

290

839,958

$ 16,597,641

$

28,603

16,748

$

115,684

$

230,984

$ 16,989,660

128

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
A summary of loans currently performing, loans past due and accruing and nonaccrual loans as of December 31, 2015 is as 
follows (in thousands):

Commercial:

Energy

Services

Wholesale/retail

Manufacturing

Healthcare

Other commercial and industrial

Total commercial

Commercial real estate:

Residential construction and land

development

Retail

Office

Multifamily

Industrial

Other commercial real estate

Residential mortgage:

Permanent mortgage

Permanent mortgages guaranteed by

U.S. government agencies

Home equity

Total residential mortgage

Personal

Total

Total commercial real estate

3,241,541

8,114

Current

30 to 59
Days

Past Due

60 to 89
Days

90 Days
or More

Nonaccrual

Total

$ 3,033,504

$

2,635

— $

— $

61,189

$ 3,097,328

2,769,895

1,418,396

556,398

1,879,873

507,929

10,165,995

156,017

795,180

637,056

742,697

563,093

347,498

66

49

—

2,435

84

5,269

—

—

—

8,114

—

—

913,062

3,290

4,025

—

—

—

16

4,041

—

—

—

—

—

—

—

—

—

700

—

—

102

802

—

—

—

—

—

377

377

10,290

2,919

331

1,072

623

2,784,276

1,422,064

556,729

1,883,380

508,754

76,424

10,252,531

4,409

1,319

651

274

76

2,272

9,001

160,426

796,499

637,707

751,085

563,169

350,147

3,259,033

—

28,984

945,336

33,653

721,149

1,667,864

16,986

2,379

22,655

13,397

716

14,113

111,001

20

111,021

21,900

10,356

61,240

196,937

734,620

1,876,893

551,533

665

28

8

463

552,697

$ 15,626,933

$

36,703

18,182

$

112,208

$

147,128

$ 15,941,154

129

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(5) Premises and Equipment 

Premises and equipment at December 31 are summarized as follows (in thousands):

Land

Buildings and improvements

Software

Furniture and equipment

Construction in progress

Premises and equipment

Less accumulated depreciation
Premises and equipment, net of accumulated depreciation

December 31,

2016

2015

$

70,552

$

250,311

158,155

217,399

36,743

733,160

407,311
325,849

$

$

72,612

225,181

142,476

194,715

39,886

674,870

368,380
306,490

Depreciation expense of premises and equipment was $40 million, $34 million and $33 million for the years ended 
December 31, 2016, 2015 and 2014, respectively.

(6) Goodwill and Intangible Assets 

On May 4, 2015, the Company acquired a majority voting interest in Heartland Food Products, LLC, a Kansas-based food 
product and restaurant equipment company pursuant to merchant banking regulations and restrictions. The cash purchase price 
for this acquisition was $18 million. The purchase price allocation included $11 million of identifiable intangible assets and 
$2.7 million of goodwill. 

On January 12, 2016, the Company acquired E-Spectrum Advisors, a boutique energy investment banking firm based in Dallas 
that offers a broad range of oil and natural gas property sales and strategic advisory services. On February 29, 2016, the 
Company acquired Weaver and Tidwell Financial Advisors LTD d/b/a Weaver Wealth Management, a registered investment 
advisor. The acquisition included hiring Weaver Wealth Management’s team and transitioning its wealth management clients to 
The Milestone Group, a wholly owned subsidiary of BOK Financial. The acquisition increased BOK Financial’s assets under 
management and administration by approximately $340 million. The combined cash purchase price for these two acquisitions 
in 2016 totaled $7.7 million, including $5.3 million of identifiable intangible assets and $3.3 million of goodwill.

On December 1, 2016, the Company acquired MBT Bancshares, Inc. ("MBT"), parent company of Missouri Bank and Trust of 
Kansas City (“Mobank”). Mobank operates four banking branches in the Kansas City, Missouri area. BOK Financial paid 
$102.5 million in an all-cash deal for all outstanding shares of MBT stock. MBT was merged into BOK Financial and Mobank 
became a wholly owned subsidiary of BOK Financial on December 1, 2016. On February 17, 2017, Mobank was merged with 
the Bank of Kansas City banking division of BOKF, NA. All branches in the Kansas City market will operate under the 
Mobank name. 

130

 
 
A summary of the preliminary purchase price allocation and resulting goodwill follows (in thousands):

Cash and cash equivalents

Securities
Loans1

Premises and equipments, net

Intangible assets – Core deposit premium

Other assets

Total assets acquired

Deposits

Other borrowings

Other liabilities

Total liabilities assumed

Net assets acquired

Less: purchase price

Goodwill
1 Loans are presented net of participations sold to BOKF NA.

$

166,215

14,431

444,482

8,035

6,510

3,599

643,272

598,735

7,217

980

606,932

36,340

102,500

$

66,160

The pro-forma impact of all acquisition transactions for periods prior to the acquisition dates was not material to the Company's 
consolidated financial statements. 

The following table presents the original cost and accumulated amortization of intangible assets (in thousands):

Core deposit premiums

Less accumulated amortization

Net core deposit premiums

Other identifiable intangible assets

Less accumulated amortization

Net other identifiable intangible assets

Dec. 31,

2016

2015

$

35,879

$

29,369

6,510

60,951

20,530

40,421

29,369

29,101

268

55,509

11,868

43,641

Total intangible assets, net

$

46,931

$

43,909

Expected amortization expense for intangible assets that will continue to be amortized (in thousands):

2017

2018

2019

2020

2021

Thereafter

Core
Deposit
Premiums

Other
Identifiable
Intangible 
Assets

$

808

732

716

697

675

$

4,565

$

3,908

3,556

3,420

3,063

2,882

21,909

$

6,510

$

40,421

$

Total

5,373

4,640

4,272

4,117

3,738

24,791

46,931

131

 
 
 
The changes in the carrying value of goodwill by operating segment are as follows (in thousands):

Balance, December 31, 2014

Goodwill

Accumulated impairment losses

Commercial
Banking

Consumer
Banking

Wealth
Management

Funds
Management
and Other

Total

$

269,363

$

39,251

$

69,394

$

— $

378,008

—

269,363

(228)

39,023

—

69,394

Goodwill acquired during 2015

7,681

—

—

Balance, December 31, 2015

Goodwill

Accumulated impairment losses

Goodwill acquired during 2016
Adjustment1

Balance, December 31, 2016

Goodwill

Accumulated impairment losses

277,044

—

277,044

1,210

(6,058)

39,251

(228)

39,023

—

—

272,196

—

39,251

(228)

69,394

—

69,394

2,126

—

71,520

—

—

—

—

—

—

—

66,160

—

(228)

377,780

7,681

385,689

(228)

385,461

69,496

(6,058)

66,160

449,127

—

(228)

272,196
1  Completion of an external audit of Heartland Food Products resulted in a reallocation of the purchase price between net assets acquired, 

71,520

66,160

39,023

448,899

$

$

$

$

$

intangible assets and goodwill during 2016.

Goodwill related to the Mobank acquisition was not yet allocated to the operating segments as of December 31, 2016 and 
accordingly is included in Funds Management and Other above. All of the goodwill related to the Mobank acquisition is tax 
deductible.

The annual goodwill evaluations for 2016 and 2015 did not indicate impairment for any reporting unit. Economic conditions 
did not indicate that impairment existed for any identifiable intangible assets and therefore no impairment evaluation was 
performed.

(7) Mortgage Banking Activities 

Residential Mortgage Loan Production

The Company originates, markets and services conventional and government-sponsored residential mortgage loans. Generally, 
conforming fixed rate residential mortgage loans are held for sale in the secondary market and non-conforming and adjustable-
rate residential mortgage loans are held for investment. The volume of mortgage loans originated for sale and secondary market 
prices are the primary drivers of originating and marketing revenue.

Residential mortgage loan commitments are generally outstanding for 60 to 90 days, which represents the typical period from 
commitment to originate a residential mortgage loan to when the closed loan is sold to an investor. Residential mortgage loan 
commitments are subject to both credit and interest rate risk. Credit risk is managed through underwriting policies and 
procedures, including collateral requirements, which are generally accepted by the secondary loan markets. Exposure to interest 
rate fluctuations is partially managed through forward sales of residential mortgage-backed securities and forward sales 
contracts. These latter contracts set the price for loans that will be delivered in the next 60 to 90 days.

132

 
The unpaid principal balance of residential mortgage loans held for sale, notional amounts of derivative contracts related to 
residential mortgage loan commitments and forward contract sales and their related fair values included in Mortgage loans held 
for sale on the Consolidated Balance Sheets were (in thousands):

Residential mortgage loans held for sale

Residential mortgage loan commitments

Forward sales contracts

December 31, 2016

December 31, 2015

Unpaid 
Principal 
Balance/
Notional

Fair Value

Unpaid 
Principal 
Balance/
Notional

Fair Value

$

286,414

$

286,971

$

293,637

$

299,505

318,359

569,543

9,733

5,193

601,147

884,710

8,134

800

  $

301,897

  $

308,439

No residential mortgage loans held for sale were 90 days or more past due or considered impaired as of December 31, 2016 or 
December 31, 2015. No credit losses were recognized on residential mortgage loans held for sale for the years ended 
December 31, 2016, 2015 and 2014.

Mortgage banking revenue was as follows (in thousands):

Year Ended

2016

2015

2014

Production revenue:

Net realized gains on sales of mortgage loans

$

68,947

$

67,407

$

56,696

Net change in unrealized gain on mortgage loans held for sale

Net change in the fair value of mortgage loan commitments

Net change in the fair value of forward sales contracts

Total production revenue

Servicing revenue

Total mortgage banking revenue

(5,311)

1,599

4,393

69,628

64,286

(784)

(1,837)

4,801

69,587

56,415

5,357

7,315

(8,307)

61,061

48,032

$

133,914

$

126,002

$

109,093

Mortgage production revenue includes gain (loss) on residential mortgage loans held for sale and changes in the fair value of 
derivative contracts not designated as hedging instruments related to residential mortgage loan commitments and forward sales 
contracts. Servicing revenue includes servicing fee income and late charges on loans serviced for others.

Residential Mortgage Servicing

The Company generally retains the right to service residential mortgage loans sold and may purchase mortgage servicing 
rights. The unpaid principal balance of loans serviced for others is the primary driver of servicing revenue.

The following represents a summary of mortgage servicing rights (Dollars in thousands):

Number of residential mortgage loans serviced for others

2016

139,340

December 31,

2015

131,859

2014

117,483

Outstanding principal balance of residential mortgage loans serviced for others

$

21,997,568

$

19,678,226

$

16,162,887

Weighted average interest rate

Remaining contractual term (in months)

3.97%

301

4.12%

300

4.29%

296

133

 
 
 
 
 
 
 
 
Activity in capitalized mortgage servicing rights during the three years ended December 31, 2016 is as follows (in thousands):

Balance, December 31, 2013

Additions, net

Change in fair value due to loan runoff

Change in fair value due to market changes

Balance, December 31, 2014

Additions, net

Change in fair value due to loan runoff

Change in fair value due to market changes

Balance, December 31, 2015

Additions, net

Change in fair value due to loan runoff

Change in fair value due to market changes

Balance, December 31, 2016

Purchased

Originated

Total

$

15,935

$

137,398

$

153,333

—

(2,357)

(2,464)

11,114

—

(2,645)

1,442

9,911

—

(2,844)

1,842

54,413

(16,968)

(13,981)

160,862

79,546

(25,419)

(6,295)

208,694

71,405

(37,900)

(4,035)

54,413

(19,325)

(16,445)

171,976

79,546

(28,064)

(4,853)

218,605

71,405

(40,744)

(2,193)

$

8,909

$

238,164

$

247,073

Changes in the fair value of mortgage servicing rights due to market changes are included in Other operating revenue in the 
Consolidated Statements of Earnings. Changes in fair value due to loan runoff are included in Mortgage banking costs. 

There is no active market for trading in mortgage servicing rights after origination. Fair value is determined by discounting the 
projected net cash flows. Significant assumptions used to determine fair value considered to be significant unobservable inputs 
were as follows:

Discount rate – risk-free rate plus a market premium

December 31,

2016

10.08%

2015

10.11%

Prepayment rate - based upon loan interest rate, original term and loan type

8.98%-16.91%

7.41% - 23.88%

Loan servicing costs – annually per loan based upon loan type:

Performing loans

Delinquent loans

Loans in foreclosure

Primary/secondary mortgage rate spread

Escrow earnings rate – indexed to rates paid on deposit accounts with comparable average

life

$63 - $120

$150 - $500

$63 - $105

$150 - $500

$650 - $4,250

$650 - $4,250

105 bps

1.98%

130 bps

1.73%

Changes in primary residential mortgage interest rates directly affect the prepayment speeds used in valuing our mortgage servicing 
rights. A separate third party model is used to estimate prepayment speeds based on interest rates, housing turnover rates, estimated 
loan curtailment, anticipated defaults and other relevant factors. The prepayment model is updated periodically for changes in 
market conditions and adjusted to better correlate with actual performance of BOK Financial’s servicing portfolio.

The interest rate sensitivity of our mortgage servicing rights is modeled over a range of +/- 50 basis points. At December 31, 2016, 
a 50 basis point increase in mortgage interest rates is expected to increase the fair value of our mortgage servicing rights by $25 
million. A 50 basis point decrease in mortgage interest rates is expected to decrease the fair value of our mortgage servicing rights 
by $29 million. In the model, changes in the value of servicing rights due to changes in interest rates assume stable relationships 
between  residential  mortgage  rates  and  prepayment  speeds.  Changes  in  market  conditions  can  cause  variations  from  these 
assumptions.  These  factors  and  others  may  cause  changes  in  the  value  of  our  mortgage  servicing  rights  to  differ  from  our 
expectations.

134

 
 
The aging status of our mortgage loans serviced for others by investor at December 31, 2016 follows (in thousands):

FHLMC

FNMA

GNMA

Other

Total

Current

30 to 59
Days

Past Due

60 to 89
Days

90 Days or
More

Total

$ 7,950,818

$

52,434

$

9,812

$

25,670

$

8,038,734

6,922,833

6,304,914

390,109

44,532

181,669

763

11,233

56,534

351

21,486

22,471

1,939

7,000,084

6,565,588

393,162

$ 21,568,674

$

279,398

$

77,930

$

71,566

$ 21,997,568

The Company has off-balance sheet credit risk related to first lien, fixed-rate residential mortgage loans sold to U.S. 
government agencies with recourse prior to 2008 under various community development programs. The Company no longer 
sells residential mortgage loans with recourse other than obligations under standard representations and warranties. The 
recourse obligation relates to loan performance for the life of the loan. The principal balance of residential mortgage loans sold 
subject to recourse obligations totaled $139 million at December 31, 2016 and $155 million at December 31, 2015.  A separate 
accrual for these off-balance sheet commitments is included in Other liabilities in the Consolidated Balance Sheets. The 
provision for credit losses on loans sold with recourse is included in Mortgage banking costs in the Consolidated Statements of 
Earnings.

The activity in the accrual for losses on loans sold with recourse included in Other liabilities in the Consolidated Balance 
Sheets is summarized as follows (in thousands):

Beginning balance

Provision for recourse losses

Loans charged off, net

Ending balance

Year Ended

2016

2015

2014

$

$

4,649

$

7,299

$

725

(1,358)

(982)

(1,668)

4,016

$

4,649

$

9,562

354

(2,617)

7,299

The Company also has off-balance sheet obligations to repurchase or provide indemnification for residential mortgage loans 
sold to government sponsored entities due to standard representations and warranties made under contractual agreements. The 
Company has established an accrual for credit losses related to potential loan repurchases under representations and warranties 
and related servicing expenses that is included in Other liabilities in the Consolidated Balance Sheets and in Mortgage banking 
costs in the Consolidated Statements of Earnings. In 2016, the Company repurchased 18 loans from the agencies for $3.9 
million and paid indemnification for 7 loans. Losses on both repurchases and indemnifications were insignificant. 

A summary of unresolved deficiency requests from the agencies follows (in thousands, except for number of unresolved 
deficiency requests):

Number of unresolved deficiency requests

233

Aggregate outstanding principal balance subject to unresolved deficiency requests

$

17,382

$

Unpaid principal balance subject to indemnification by the Company

5,803

198

15,624

4,365

The activity in the accruals for mortgage losses related to repurchases is summarized as follows (in thousands).

December 31,

2016

2015

Beginning balance

Provision for losses

Charge-offs, net

Ending balance

135

December 31,

2016

2015

$

$

3,359

$

27

(598)

2,788

$

3,220

353

(214)

3,359

 
 
 
 
 
 
 
(8) Deposits 

Interest expense on deposits is summarized as follows (in thousands):

Transaction deposits

Savings

Time:

Certificates of deposits under $100,000

Certificates of deposits $100,000 and over

Other time deposits

Total time

Total

Year Ended December 31,

2016

2015

2014

$

13,906

$

8,821

$

9,757

386

383

401

8,776

10,123

7,303

26,202

11,894

10,643

12,429

34,966

14,278

11,878

14,369

40,525

$

40,494

$

44,170

$

50,683

The aggregate amounts of time deposits in denominations of $250,000 or more at December 31, 2016 and 2015 were $866 
million and $905 million, respectively.

Time deposit maturities are as follows:  2017 – $1.3 billion, 2018 – $340 million, 2019 – $71 million, 2020 – $94 million, 2021 
– $114 million and $342 million thereafter. 

At December 31, 2016 and 2015, the Company had $417 million and $358 million, respectively, in fixed rate, brokered 
certificates of deposits. The weighted-average interest rate paid on these certificates was 1.33% in 2016 and 1.48% in 2015.

The aggregate amount of overdrawn customer transaction deposits that have been reclassified as loan balances was $9.7 million 
at December 31, 2016 and $5.3 million at December 31, 2015.

136

 
 
 
 
(9) Other Borrowings 

Information relating to other borrowings is summarized as follows (dollars in thousands):

As of

December 31, 2016

Year Ended
December 31, 2016

Balance

Rate

Average
Balance

Rate

Maximum
Outstanding
At Any
Month End

Parent company and other non-bank subsidiaries:

Trust preferred debt

Other

Total other borrowings

Subordinated debentures

$

3.28% $

8.27%

7,217

1,092

8,309

144,640

5.60%

Total parent company and other non-bank subsidiaries

152,949

611

2,073

2,684

74,428

77,112

3.27% $

16.11%

13.19%

5.59% $

5.86%

BOKF, NA:

Funds purchased

Repurchase agreements

Other borrowings:

Federal Home Loan Bank advances

GNMA repurchase liability

Other

Total other borrowings

Subordinated debentures

Total BOKF, NA

57,929

668,661

0.38%

0.02%

78,222

589,145

0.24%

0.04%

4,800,000

0.72% 5,985,656

22,471

15,292

4.26%

2.66%

4,837,763

15,637

15,670

6,016,963

—

—%

140,414

5,564,353

6,824,744

0.55%

4.74%

2.41%

0.57%

1.35%

0.54%

Total other borrowed funds

$

5,717,302

$ 6,901,856

0.60%

7,217

3,157

145,393

567,103

668,661

6,500,000

22,471

15,797

226,434

137

 
 
 
 
 
As of

Year Ended

December 31, 2015

December 31, 2015

Balance

Rate

Average
Balance

Rate

Maximum
Outstanding
At Any
Month End

Parent company and other non-bank subsidiaries:

Trust preferred debt

Other

Total other borrowings

Subordinated debentures

Total parent company and other non-bank subsidiaries

$

—% $

—%

—%

—

—

—

—

—

—

—

—

—

—

—% $

—%

—%

—%

—%

BOKF, NA:

Funds purchased

Repurchase agreements

Other borrowings:

Federal Home Loan Bank advances

GNMA repurchase liability

Other

Total other borrowings

Subordinated debentures

Total BOKF, NA

491,192

722,444

0.15%

0.02%

73,219

623,921

0.09%

0.04%

4,800,000

0.48% 4,921,739

19,478

18,402

4.75%

2.70%

4,837,880

16,668

18,768

4,957,175

226,350

1.05%

226,332

6,277,866

5,880,647

0.28%

4.95%

2.35%

0.33%

1.84%

0.36%

Total other borrowed funds

$

6,277,866

$ 5,880,647

0.36%

—

—

—

491,192

1,008,144

5,000,000

19,478

26,058

348,076

As of

Year Ended

December 31, 2014

December 31, 2014

Balance

Rate

Average
Balance

Rate

Maximum
Outstanding
At Any
Month End

Parent company and other non-bank subsidiaries:

Trust preferred debt

Other

Total other borrowings

Subordinated debentures

Total parent company and other non-bank subsidiaries

$

—% $

—%

—%

—

—

—

—

—

—

—

—

—

—

—% $

—%

—%

—%

—%

BOKF, NA:

Funds purchased

Repurchase agreements

Other borrowings:

Federal Home Loan Bank advances

GNMA repurchase liability

Other

Total other borrowings

Subordinated debentures

Total BOKF, NA

57,031

1,187,489

0.05%

0.04%

494,220

928,767

0.07%

0.06%

2,103,400

0.25% 1,894,966

14,298

16,076

5.05%

2.73%

2,133,774

17,343

16,433

1,928,742

347,983

2.35%

347,892

3,726,277

3,699,621

0.24%

5.20%

2.32%

0.35%

2.50%

0.43%

Total other borrowed funds

$

3,726,277

$ 3,699,621

0.43%

138

—

—

—

1,548,676

1,187,489

3,453,400

24,980

16,582

347,983

 
 
 
 
 
Aggregate annual principal repayments at December 31, 2016 are as follows (in thousands):

2017

2018

2019

2020

2021

Thereafter

Total

Parent
Company 
and Other 
Non-bank 
Subsidiaries

BOKF, NA

$

— $

5,549,587

—

—

—

—

711

956

961

965

152,949

11,173

$

152,949

$

5,564,353

Funds purchased are unsecured and generally mature within one to ninety days from the transaction date. Securities repurchase 
agreements are recorded as secured borrowings that generally mature within ninety days and are secured by certain available 
for sale securities. There was no outstanding accrued interest payable related to repurchase agreements at December 31, 2016 
or December 31, 2015.

Additional information relating to securities sold under agreements to repurchase and related liabilities at December 31, 2016 
and 2015 is as follows (dollars in thousands):

Security Sold/Maturity

U.S. government agency mortgage-backed securities:

Overnight1
Long-term

Total Agency Securities

Security Sold/Maturity

U.S. government agency mortgage-backed securities:

Overnight1
Long-term

Total Agency Securities

December 31, 2016

Amortized

Cost

Fair

Value

Repurchase
Liability1

Average

Rate

$

$

$

$

655,529

—

655,529

$

$

655,851

—

655,851

$

$

668,661

—

668,661

0.02%

—%

0.02%

December 31, 2015

Amortized

Cost

Fair

Value

Repurchase
Liability1

Average

Rate

685,458

—

685,458

$

$

688,485

—

688,485

$

$

722,444

—

722,444

0.02 %

— %

0.02 %

1  BOK Financial maintains control over the securities underlying overnight repurchase agreements and generally transfers control over securities underlying 

longer-term dealer repurchase agreements to the respective counterparty.

Borrowings from the Federal Home Loan Banks are used for funding purposes. In accordance with policies of the Federal 
Home Loan Banks, BOK Financial has granted a blanket pledge of eligible assets (generally unencumbered U.S. Treasury and 
residential mortgage-backed securities, 1-4 family loans and multifamily loans) as collateral for these advances. The Federal 
Home Loan Banks have issued letters of credit totaling $242 million to secure BOK Financial’s obligations to depositors of 
public funds. The unused credit available to BOK Financial at December 31, 2016 pursuant to the Federal Home Loan Bank’s 
collateral policies is $1.3 billion.

In 2016, BOK Financial issued $150 million of subordinated debt that will mature on June 30, 2056. Interest on this debt bears 
an interest rate of 5.375%, payable quarterly. On June 30, 2021, BOK Financial will have the option to redeem the debt at the 
principal amount plus accrued interest, subject to regulatory approval. 

139

 
 
 
 
 
 
 
 
 
 
 
 
In conjunction with the acquisition of MBT, BOK Financial assumed $7.2 million of variable rate subordinated trust preferred. 
This trust preferred debt is callable prior to maturity on September 17, 2033 and December 15, 2036, respectively, subject to 
regulatory approval. Interest is payable quarterly at three-month LIBOR plus 2.95% on $3.1 million and three-month LIBOR 
plus 1.82% on $4.1 million.

BOK Financial Securities, Inc. may borrow funds from Pershing, LLC ("Pershing"), a clearing broker/dealer and a wholly 
owned subsidiary of Bank of New York Mellon, for the purposes of financing securities purchases or to facilitate funding of 
investment banking activities, on terms to be negotiated at the time of the borrowing. BOK Financial Securities, Inc. had no 
borrowings from Pershing outstanding at December 31, 2016 or December 31, 2015.

In 2007, BOKF, NA issued $250 million of subordinated debt due May 15, 2017. Interest on this debt was based upon a fixed 
rate of 5.75% through May 14, 2012 and is based on a floating rate of three-month LIBOR plus 0.69% thereafter. The proceeds 
of this debt were used to fund the Worth National Bank and First United Bank acquisitions and to fund continued asset growth. 
The outstanding balance of this subordinated debt was $226 million at December 31, 2015. The remaining outstanding balance 
was called during 2016.

The Company has a liability related to the repurchase of certain delinquent residential mortgage loans previously sold into 
GNMA mortgage pools. Interest is payable at rates contractually due to investors.

140

(10) Federal and State Income Taxes 

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities 
for financial reporting purposes and the amounts used for income tax purposes. Significant components of deferred tax assets 
and liabilities are as follows (in thousands):

Deferred tax assets:

Available for sale securities mark to market

Share-based compensation

Credit loss allowances

Valuation adjustments

Deferred compensation

Unearned fees

Other

Total deferred tax assets

Deferred tax liabilities:

Available for sale securities mark to market

Depreciation

Mortgage servicing rights

Lease financing

Other

Total deferred tax liabilities

Net deferred tax assets (liabilities)

December 31,

2016

2015

$

5,779

$

9,360

99,191

12,222

30,262

11,877

42,541

—

10,522

88,906

6,957

25,950

11,124

34,169

211,232

177,628

—

25,877

92,748

17,923

45,363

14,828

22,080

77,900

22,301

41,904

181,911

179,013

$

29,321

$

(1,385)

The Company determined that no valuation allowance was necessary on deferred tax assets as of December 31, 2016 and 2015.

The significant components of the provision for income taxes attributable to continuing operations for BOK Financial are 
shown below (in thousands):

Current income tax expense:

Federal

State

Total current income tax expense

Deferred income tax expense:

Federal

State

Total deferred income tax expense

Total income tax expense

Year Ended December 31,

2016

2015

2014

$

107,379

$

117,566

$

11,028

118,407

12,397

129,963

(11,340)

(690)

(12,030)

8,397

1,024

9,421

95,289

9,392

104,681

36,521

2,949

39,470

$

106,377

$

139,384

$

144,151

141

The reconciliations of income attributable to continuing operations at the U.S. federal statutory tax rate to income tax expense 
are as follows (in thousands):

Amount:

Federal statutory tax

Tax exempt revenue

Effect of state income taxes, net of federal benefit

Utilization of tax credits:

Low-income housing tax credits, net of amortization

Other tax credits

Bank-owned life insurance

Other, net

Total income tax expense

Percent of pretax income:

Federal statutory tax

Tax exempt revenue

Effect of state income taxes, net of federal benefit

Utilization of tax credits:

Low-income housing tax credits, net of amortization

Other tax credits

Bank-owned life insurance

Other, net

Total

Year Ended December 31,

2016

2015

2014

$

118,530

$

151,075

$

153,870

(10,544)

6,478

(4,171)

(2,085)

(2,911)

1,080

(9,553)

9,082

(3,874)

(2,085)

(3,264)

(1,997)

(8,446)

9,054

(2,953)

(2,109)

(3,183)

(2,082)

$

106,377

$

139,384

$

144,151

Year Ended December 31,

2016

2015

2014

35.0%

(3.1)

1.9

(1.2)

(0.6)

(0.9)

0.3

35.0%

(2.2)

2.1

(0.9)

(0.5)

(0.7)

(0.5)

35.0%

(1.9)

2.1

(0.7)

(0.5)

(0.7)

(0.5)

31.4%

32.3%

32.8%

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands):

Balance as of January 1

Additions for tax for current year positions

Settlements during the period

Lapses of applicable statute of limitations

Balance as of December 31

2016

2015

2014

$

13,232

$

13,374

$

5,640

—

(3,031)

2,226

—

(2,368)

$

15,841

$

13,232

$

12,058

3,813

—

(2,497)

13,374

Of the above unrecognized tax benefits, $10.3 million, if recognized, would have affected the effective tax rate.

BOK Financial recognizes interest and penalties accrued related to unrecognized tax benefits in income tax expense. The 
Company recognized $1.0 million for 2016, $1.0 million for 2015 and $1.5 million for 2014 in interest and penalties. The 
Company had approximately $3.5 million and $3.3 million accrued for the payment of interest and penalties at December 31, 
2016 and 2015, respectively. Federal statutes remain open for federal tax returns filed in the previous three reporting periods. 
Various state income tax statutes remain open for the previous three to six reporting periods. 

142

 
 
 
 
 
 
(11) Employee Benefits 

BOK Financial sponsors a defined benefit cash balance Pension Plan for all employees who satisfy certain age and service 
requirements. Pension Plan benefits were curtailed as of April 1, 2006. No participants may be added to the plan and no 
additional service benefits will be accrued. During 2016 and 2015, interest accrued on employees' account balances at a 
variable rate tied to the five-year trailing average of five-year U.S. Treasury securities plus 1.5%. The rate has a floor of 3.0% 
and a ceiling of 5.0%. The 2016 quarterly variable rates remained at 3.00%.

The following table presents information regarding this plan (in thousands):

Change in projected benefit obligation:

Projected benefit obligation at beginning of year

Interest cost

Actuarial loss (gain)

Benefits paid

Projected benefit obligation at end of year1,2
Change in plan assets:

Plan assets at fair value at beginning of year

Actual return on plan assets

Benefits paid

Plan assets at fair value at end of year

Funded status of the plan

Components of net periodic benefit costs:

Interest cost

Expected return on plan assets

Other

Net benefit cost
1  Projected benefit obligation equals accumulated benefit obligation.
2  Projected benefit obligation is based on January 1 measurement date.

Weighted-average assumptions as of December 31:

Discount rate

Expected return on plan assets

December 31,

2016

2015

$

38,797

$

1,309

(55)

(5,087)

34,964

44,190

2,666

(5,087)

41,769

6,805

1,309

(2,167)

(741)

$

$

$

$

$

(1,599) $

$

$

$

$

$

$

45,224

1,487

(2,702)

(5,212)

38,797

49,443

(41)

(5,212)

44,190

5,393

1,487

(2,706)

1,849

630

2016

2015

3.43%

5.00%

3.54%

5.00%

As of December 31, 2016, expected future benefit payments related to the Pension Plan were as follows (in thousands):

2017

2018

2019

2020

2021

Thereafter

Total estimated future benefit payments

$

$

2,706

3,072

3,402

3,090

2,934

28,044

43,248

143

 
 
 
 
 
 
Assets of the Pension Plan consist primarily of shares in the Cavanal Hill Active Core Fund. The stated objective of this fund is 
to provide an attractive total return with a well-balanced mix of equities and bonds. The typical portfolio mix is approximately 
60% equities and 40% bonds. The net asset value of shares in the Cavanal Hill Funds is reported daily based on market 
quotations for the Fund’s securities. Management considers the Fund's recent and long-term performance as indicators when 
setting the expected return on plan assets.  As of December 31, 2016, the expected return on plan assets for 2017 is 5.00%. The 
maximum tax deductible Pension Plan contribution for 2016 was $12 million. No minimum contribution was required for 2016, 
2015 or 2014. 

Employee contributions to the Thrift Plan are eligible for Company matching equal to 6% of base compensation, as defined in 
the plan. The Company-provided matching contribution rates range from 50% for employees with less than 4 years of service 
to 200% for employees with 15 or more years of service. Additionally, a maximum Company-provided, non-elective annual 
contribution of up to $750 per participant is provided for employees whose annual base compensation is less than 
$40,000. Total non-elective contributions were $530 thousand for 2016, $605 thousand for 2015 and $662 thousand for 2014.

Participants may direct investments in their accounts to a variety of options, including a BOK Financial common stock fund 
and Cavanal Hill funds. Employer contributions, which are invested in accordance with the participant’s investment options, 
vest over five years. Thrift Plan expenses were $22.4 million for 2016, $20.6 million for 2015 and $18.6 million for 2014.

BOK Financial offers numerous incentive compensation plans that are aligned with the Company’s growth 
strategy. Compensation awarded under these plans may be based on defined formulas, other performance criteria or 
discretionary. Incentive compensation is designed to motivate and reinforce sales and customer service behavior in all 
markets. Earnings were charged $128.1 million in 2016, $114.3 million in 2015, and $111.7 million in 2014 for cash incentive 
compensation.

144

(12) Share-Based Compensation Plans 

The shareholders and Board of Directors of BOK Financial have approved various share-based compensation plans. An 
independent compensation committee of the Board of Directors determines the number of awards granted to the Chief 
Executive Officer and other senior executives. Share-based compensation is granted to other officers and employees as 
determined by the Chief Executive Officer.

The following table presents stock options outstanding during 2016, 2015 and 2014 under these plans (in thousands, except for 
per share data):

Options outstanding at December 31, 2013

Options awarded

Options exercised

Options forfeited

Options expired

Options outstanding at December 31, 2014

Options awarded

Options exercised

Options forfeited

Options expired

Options outstanding at December 31, 2015

Options awarded

Options exercised

Options forfeited

Options expired

Options outstanding at December 31, 2016

Options vested at:

December 31, 2014

December 31, 2015

December 31, 2016

Weighted-
Average
Exercise
Price

Aggregate
Intrinsic
Value

Number

1,135,105

$

49.09

$

19,564

—

(323,004)

(15,509)

(2,701)

793,891

—

(286,678)

(22,304)

(4,874)

480,035

—

(249,404)

(4,098)

(8,009)

218,524

347,633

243,395

93,117

$

$

—

49.17

45.71

47.98

49.05

—

47.86

48.90

51.32

49.75

—

47.60

55.44

53.43

51.95

48.85

48.17

46.22

$

$

8,725

4,821

6,793

3,889

2,829

3,429

The following table summarizes information concerning currently outstanding and vested stock options:

Options Outstanding

Weighted

Average

Weighted

Remaining

Number

Contractual

Average

Exercise

Outstanding

Life (years)

Price

Number

Vested

Options Vested

Weighted

Average

Exercise

Price

Weighted

Average

Remaining

Contractual

Life (years)

36,722

14,208

21,138

3,628

51,570

48,800

42,458

1.45

2.32

0.81

0.03

4.28

3.08

3.62

$36.65

48.30

48.46

54.33

55.74

55.94

58.76

36,722

6,906

21,138

3,628

5,008

12,260

7,455

$36.65

48.30

48.46

54.33

55.74

55.94

58.76

1.45

1.57

0.81

0.03

2.03

1.72

1.70

Exercise

Prices

$36.65

48.30

48.46

54.33

55.74

55.94

58.76

The aggregate intrinsic value of options exercised was $6.2 million for 2016, $5.1 million for 2015 and $5.5 million for 2014. 

145

 
 
 
 
 
 
 
 
 
 
No options were granted in 2016, 2015 or 2014. Compensation expense recognized on stock options totaled $254 thousand for 
2016, $362 thousand for 2015 and $826 thousand for 2014. Compensation cost of stock options granted that may be recognized 
as compensation expense in future years totaled $229 thousand at December 31, 2016. 

The following represents a summary of the non-vested stock awards as of December 31, 2016 (in thousands):

Non-vested at January 1, 2014

   Granted

   Vested

   Forfeited

Non-vested at December 31, 2014

   Granted

   Vested

   Forfeited

Non-vested at December 31, 2015

   Granted

   Vested

   Forfeited

Non-vested at December 31, 2016

Weighted
Average
Grant Date
Fair Value

$64.96

$44.56

$56.26

$57.66

$50.15

$58.33

$55.35

$55.87

$57.86

Shares

647,989

206,621

(140,820)

(25,179)

688,611

312,755

(114,045)

(96,212)

791,109

256,670

(213,941)

(47,132)

786,706

Compensation expense recognized on non-vested shares totaled $10.2 million for 2016, $12.0 million for 2015 and $10.0 
million for 2014. Unrecognized compensation cost of non-vested shares totaled $14.1 million at December 31, 2016. Subject to 
adjustment for forfeitures and changes in the fair value of 293,110 shares awarded under the Executive Incentive Plan, we 
expect to recognize compensation expense of $9.3 million in 2017, $4.7 million in 2018, and $89 thousand in 2019.

During January 2017, BOK Financial awarded 170,785 shares of non-vested stock with a fair value per award of $83.50. The 
aggregate compensation cost of these awards totaled approximately $14.3 million. 

146

 
(13) Related Parties 

In compliance with applicable banking regulations, the Company may extend credit to certain executive officers, directors, 
principal shareholders and their affiliates (collectively referred to as “related parties”) in the ordinary course of business. The 
Company’s loans to related parties do not involve more than the normal credit risk and there are no nonaccruing or impaired 
related party loans outstanding at December 31, 2016 or 2015.

Activity in loans to related parties is summarized as follows (in thousands):

Beginning balance

Advances

Payments
Adjustments1
Ending balance
1  Adjustments generally consist of changes in status as a related party. 

Year Ended December 31,

2016

2015

$

594,225

$

103,395

884,511

3,582,384

(1,123,747)

(3,104,004)

(218,044)

12,450

$

136,945

$

594,225

As defined by banking regulations, loan commitments and equity investments to a single affiliate may not exceed 10% of 
unimpaired capital and surplus and loan commitments and equity investments to all affiliates may not exceed 20% of 
unimpaired capital and surplus. All loans to affiliates must be fully secured by eligible collateral. At December 31, 2016, loan 
commitments and equity investments were limited to $287 million to a single affiliate and $573 million to all affiliates. The 
largest loan commitment and equity investment to a single affiliate was $220 million and the aggregate loan commitments and 
equity investments to all affiliates were $337 million. The largest outstanding amount to a single affiliate at December 31, 2016 
was $24 million and the total outstanding amounts to all affiliates were $39 million. At December 31, 2015, total loan 
commitments and equity investments to all affiliates were $330 million and the total outstanding amounts to all affiliates were 
$244 million.

Certain related parties are customers of the Company for services other than loans, including consumer banking, corporate 
banking, risk management, wealth management, brokerage and trading, or fiduciary/trust services. The Company engages in 
transactions with related parties in the ordinary course of business in compliance with applicable regulations.

The Company rents office space in facilities owned by affiliates of Mr. Kaiser, its Chairman and principal shareholder. Lease 
payments totaled $1.1 million for 2016, $975 thousand for 2015 and $1.1 million for 2014.

During 2016, the Company agreed to purchase approximately $7.5 million of Oklahoma Historic State Income Tax Credits 
from the George Kaiser Family Foundation, a principal shareholder of BOKF. In the fourth quarter, $3.8 million of these tax 
credits were purchased and reduced the Company's state liability for 2016. The remaining credits when purchased will be used 
to reduce the Company's state income tax liability in 2017.  

Cavanal Hill Investment Management, Inc., a wholly-owned subsidiary of BOKF, NA, is the administrator to and investment 
advisor for the Cavanal Hill Funds (the "Funds"), a diversified, open-ended investment company established as a business trust 
under the Investment Company Act of 1940 (the "1940 Act"). BOKF, NA is custodian and BOK Financial Securities, Inc. is 
distributor for the Funds. The Funds’ products are offered to customers, employee benefit plans, trusts and the general public in 
the ordinary course of business. Approximately 94% of the Funds’ assets of $3.8 billion are held for the Company's clients. A 
Company executive officer serves on the Funds' board of trustees and officers of BOKF, NA serve as president and secretary of 
the Funds. A majority of the members of the Funds’ board of trustees are, however, independent of the Company and the Funds 
are managed by its board of trustees.

147

 
 
(14)  Commitments and Contingent Liabilities 

Litigation Contingencies

As a member of Visa, BOK Financial is obligated for a proportionate share of certain covered litigation losses incurred by Visa 
under a retrospective responsibility plan. A contingent liability was recognized for the Company’s share of Visa’s covered 
litigation liabilities. Visa funded an escrow account to cover litigation claims, including covered litigation losses under the 
retrospective responsibility plan, with proceeds from its initial public offering in 2008 and from available cash.   

BOK Financial currently owns 252,233 Visa Class B shares which are convertible into 415,755 shares of Visa Class A shares 
after the final settlement of all covered litigation. Class B shares may be diluted in the future if the escrow fund is not adequate 
to cover future covered litigation costs. Therefore, no value has been currently assigned to the Class B shares and no value may 
be assigned until the Class B shares are converted into a known number of Class A shares.

On March 3, 2015, BOKF, NA and the Company were named as defendants in a class action alleging (1) that the manner in 
which the Bank posted charges to its consumer deposit accounts was improper from September 1, 2011 through July 8, 2014, 
the period after which the Bank and BOK Financial had settled a class action respecting a similar claim, and before it made 
changes to its posting order and (2) that the manner in which the Bank posted charges to its small business deposit accounts 
was improper from July 9, 2009 through July 8, 2014. Following mediation of the case in August 2016, the Class 
Representatives and the Bank reached a settlement of the action for $7.8 million. The settlement is subject to the approval of 
the Court which the Parties to the Action expect. The Company has funded the settlement.  

On June 24, 2015, the Bank received a complaint alleging that an employee had colluded with a bond issuer and an individual 
in misusing revenues pledged to municipal bonds for which the Bank served as trustee under the bond indenture. The Company 
conducted an investigation and concluded that employees in one of its Corporate Trust offices had, with respect to a single 
group of affiliated bond issuances, violated Company policies and procedures by waiving financial covenants, granting 
forbearances and accepting without disclosure to the bondholders, debt service payments from sources other than pledged 
revenues. The relationship manager was terminated. The Company reported the circumstances to, and cooperated with an 
investigation by, the Securities and Exchange Commission ("SEC"). On December 28, 2015, in an action brought by the SEC, 
the United States District Court for the District of New Jersey entered a judgment against the principals involved in the issuing 
the bonds, precluding the principals from denying the alleged violations of the federal securities laws and requiring the 
principals to pay all outstanding principal, accrued interest, and other amounts required under the bond documents (estimated to 
be approximately$73 million, less the value of the facilities securing repayment of the bonds), subject to oversight by a court 
appointed monitor. On September 7, 2016, the Bank agreed, and the SEC entered, a consent order finding that the Bank had 
violated Section 17(a) of the Securities Act of 1933 and Section 10(b) of the Securities Exchange Act and requiring the Bank to 
disgorge $1,067,721 of fees and pay a civil penalty of $600,000. The Bank has disgorged the fees and paid the penalty. On 
January 7, 2016, the terminated employee filed an action against the Bank alleging the Bank defamed the employee and made a 
demand for indemnification respecting the SEC investigation which demand the respective boards of directors of the Company 
and the Bank denied. On September 26, 2016, the employee dismissed the action without prejudice.  On September 9, 2016, the 
SEC filed a complaint against the terminated employee alleging the employee violated Section 17(a) of the Securities Act of 
1933 and Section 10(b) of the Securities Exchange Act and requiring the employee to disgorge ill-gotten gains. The SEC and 
the terminated employee  have  advised the Court that a settlement has been reached subject to approval by the Commission.  
On August 26, 2016, the Bank was sued in the United States District Court for New Jersey by two bondholders in a putative 
class action on behalf of all holders of the bonds alleging the Bank participated in the fraudulent sale of securities by the 
principals. On September 14, 2016, the Bank was sued in the District Court of Tulsa County, Oklahoma by 19 bondholders 
alleging the Bank participated in the fraudulent sale of securities by the principals. Management has been advised by counsel 
that the Bank has valid defenses to the claims. The Bank expects the Court ordered payment plan will result in the payment of 
the bonds by the principals. Accordingly, no loss is probable at this time and no provision for loss has been made. If the 
payment plan does not result in payment of the bonds, a loss could become probable. A reasonable estimate cannot be made at 
this time though the amount could be material to the Company. 

The Director of the New Mexico Securities Division of the State of New Mexico Regulation and Licensing Department ("the 
Director") issued a Notice of Contemplated Action in connection with the purchase of various municipal bonds by the elected 
County Treasurer of Bernalillo County, New Mexico, from BOK Financial Securities, Inc., the Company’s broker-dealer 
affiliate. The Notice was settled by a $125,000 payment to the Division’s Educational fund, without any fine, penalty or 
sanction. The County of Bernalillo, New Mexico, has commenced arbitration pursuant to the Arbitration Rules of FINRA 
seeking recovery of $5.6 million arising out of the purchase. The Company has been advised that any recovery by the County is 
remote.

148

 
In the ordinary course of business, BOK Financial and its subsidiaries are subject to legal actions and complaints. Management 
believes, based upon the opinion of counsel, that the actions and liability or loss, if any, resulting from the final outcomes of the 
proceedings, will not have a material effect on the Company’s financial condition, results of operations or cash flows.

Alternative Investment Commitments

The Company sponsors two private equity funds and invests in several tax credit entities and other funds as permitted by 
banking regulations. Consolidation of these investments is based on the variable interest model determined by the nature of the 
entity. Variable interest entities are generally defined as entities that either do not have sufficient equity to finance their 
activities without support from other parties or whose equity investors lack a controlling financial interest. Variable interest 
entities are consolidated based on the determination that the Company is the primary beneficiary including the power to direct 
the activities that most significantly impact the variable interest's economic performance and the obligation to absorb losses of 
the variable interest or the right to receive benefits of the variable interest that could be significant to the variable interest.

BOKF Equity, LLC, an indirect wholly-owned subsidiary, is the general partner of two consolidated private equity funds (“the 
Funds”). The Funds provide alternative investment opportunities to certain customers, some of which are related parties, 
through unaffiliated limited partnerships. These unaffiliated limited partnerships generally invest in distressed assets, asset buy-
outs or venture capital companies. As general partner, BOKF Equity, LLC has the power to direct activities that most 
significantly affect the Funds' performance and contingent obligations to make additional investments totaling $2.6 million at 
December 31, 2016. Substantially all of the obligations are offset by limited partner commitments. The Company does not 
accrue its contingent liability to fund investments. The Volcker Rule in Title VI of the Dodd-Frank Act will limit both the 
amount and structure of these type of investments. 

Consolidated tax credit entities represent the Company's interest in entities earning federal new market tax credits related to 
qualifying loans for which the Company has the power to direct the activities that most significantly impact the variable 
interest's economic performance of the entity including being the primary beneficiary of or the obligation to absorb losses of 
the variable interest that could be significant to the variable interest. The creditors underlying the other borrowings of 
consolidated tax credit entities do not have recourse to the general credit of BOKF.

The Company also has interests in various unrelated alternative investments generally consisting of unconsolidated limited 
partnership interests in or loans to entities for which investment return is in the form of tax credits or that invest in distressed 
real estate loans and properties, energy development, venture capital and other activities. The Company is prohibited by 
banking regulations from controlling or actively managing the activities of these investments and the Company's maximum 
exposure to loss is restricted to its investment balance. The Company's obligation to fund alternative investments is included in 
Other liabilities in the Consolidated Balance Sheets. 

A summary of consolidated and unconsolidated alternative investments as of December 31, 2016 and December 31, 2015 is as 
follows (in thousands):

Consolidated:

Private equity funds

Tax credit entities

Other

Total consolidated

Unconsolidated:

Tax credit entities

Other

Total unconsolidated

December 31, 2016

Loans

Other
Assets

Other
Liabilities

Other
Borrowings

Non-
controlling
Interests

$

— $

17,357

$

— $

— $

10,000

—

11,585

29,783

—

3,189

10,964

1,092

$

10,000

$

58,725

$

3,189

$

12,056

$

13,237

10,000

8,266

31,503

$

$

44,488

$ 143,715

—

31,675

44,488

$ 175,390

$

$

63,329

15,028

78,357

$

$

— $

—

— $

—

—

—

149

Consolidated:

Private equity funds

Tax credit entities

Other

Total consolidated

Unconsolidated:

Tax credit entities

Other

Total unconsolidated

December 31, 2015

Loans

Other
Assets

Other
Liabilities

Other
Borrowings

Non-
controlling
Interests

$

— $

22,472

$

— $

— $

10,000

—

12,206

40,453

—

2,198

10,964

2,831

$

10,000

$

75,131

$

2,198

$

13,795

$

17,823

10,000

9,260

37,083

$

$

16,916

$

85,274

—

15,506

16,916

$ 100,780

$

$

14,572

6,319

20,891

$

$

— $

—

— $

—

—

—

Other Commitments and Contingencies

Cavanal Hill Funds’ assets include U.S. Treasury and government securities market funds. Assets of these funds consist of 
highly-rated, short-term obligations of the U.S. Treasury and Agencies. The net asset value of units in these funds was $1.00 at 
December 31, 2016. An investment in these funds is not insured by the Federal Deposit Insurance Corporation or guaranteed by 
BOK Financial or any of its subsidiaries. BOK Financial may, but is not obligated to purchase assets from these funds to 
maintain the net asset value at $1.00. No assets were purchased from the funds in 2016 or 2015.

Total rent expense for BOK Financial was $25.8 million in 2016, $25.2 million in 2015 and $25.0 million in 2014. At 
December 31, 2016, future minimum lease payments for premises under operating leases were as follows: $22.5 million in 
2017, $20.1 million in 2018, $19.6 million in 2019, $16.2 million in 2020, $13.4 million in 2021 and $56.8 million thereafter. 
BOKF, NA is obligated under a long-term lease for its bank premises in downtown Tulsa. The lease term, which began 
November 1, 1976, is for fifty-seven years with an option to terminate in 2024 with a two-year prior written notice. Premises 
leases may include options to renew at then current market rates and may include escalation provisions based upon changes in 
consumer price index or similar benchmarks.

The Federal Reserve Bank requires member banks to maintain certain minimum average cash balances. Member banks may 
satisfy reserve balance requirements through holdings of vault cash and balances maintained directly with a Federal Reserve 
Bank. The combined average balance of vault cash and balances held at the Federal Reserve Bank was $1.9 billion for the year 
ended December 31, 2016 and $1.8 billion for the year ended December 31, 2015.

150

(15) Shareholders Equity 

Preferred Stock

One billion shares of preferred stock with a par value of $0.00005 per share are authorized. The Series A Preferred Stock has no 
voting rights except as otherwise provided by Oklahoma corporate law and may be converted into one share of Common Stock 
for each 36 shares of Series A Preferred Stock at the option of the holder. Dividends are cumulative at an annual rate of ten 
percent of the $0.06 per share liquidation preference value when declared and are payable in cash. Aggregate liquidation 
preference is $15 million. No Series A Preferred Stock was outstanding in 2016, 2015 or 2014.

Common Stock

Common stock consists of 2.5 billion authorized shares with a $0.00006 par value. Holders of common shares are entitled to 
one vote per share at the election of the Board of Directors and on any question arising at any shareholders’ meeting and to 
receive dividends when and as declared. Additionally, regulations restrict the ability of national banks and bank holding 
companies to pay dividends.

Subsidiary Bank

The amounts of dividends that BOK Financial’s subsidiary bank can declare and the amounts of loans the subsidiary bank can 
extend to affiliates are limited by various federal banking regulations and state corporate law. Generally, dividends declared 
during a calendar year are limited to net profits, as defined, for the year plus retained profits for the preceding two years. The 
amounts of dividends are further restricted by minimum capital requirements. 

Regulatory Capital

BOK Financial and the subsidiary banks are subject to various capital requirements administered by the federal banking 
agencies. Failure to meet minimum capital requirements can initiate certain mandatory and additional discretionary actions by 
regulators that could have a material effect on BOK Financial's operations. These capital requirements include quantitative 
measures of assets, liabilities and certain off-balance sheet items. The capital standards are also subject to qualitative judgments 
by the regulators.

New capital rules were effective for BOK Financial on January 1, 2015. Components of these rules will phase in through 
January 1, 2019. A bank falling below the minimum capital requirements, including the capital conservation buffer, would be 
subject to regulatory restrictions on capital distributions (including but not limited to dividends and share repurchases) and 
executive bonus payments. For a banking institution to qualify as well capitalized, Common equity Tier 1, Tier I, Total and 
Leverage capital ratios must be at least 6.5%, 8%, 10% and 5%, respectively. Tier I capital consists primarily of common 
stockholders' equity, excluding unrealized gains or losses on available for sale securities, less goodwill, core deposit premiums 
and certain other intangible assets. Total capital consists primarily of Tier I capital plus preferred stock, subordinated debt and 
allowances for credit losses, subject to certain limitations. The subsidiary banks exceeded the regulatory definition of well 
capitalized as of December 31, 2016 and December 31, 2015.

151

 
 
 
 
 
A summary of regulatory capital minimum requirements and levels follows (dollars in thousands):

Minimum
Capital
Requirement

Capital 
Conservation 
Buffer1

Minimum
Capital
Requirement
Including
Capital
Conservation
Buffer

December 31, 2016

December 31, 2015

Common equity Tier 1 Capital
(to Risk Weighted Assets):

Consolidated

BOKF, NA
Mobank2

Tier I Capital (to Risk Weighted

Assets):

Consolidated

BOKF, NA
Mobank2

Total Capital (to Risk Weighted

Assets):

Consolidated

BOKF, NA
Mobank2

Leverage (Tier I Capital to

Average Assets):

Consolidated

BOKF, NA
Mobank2

4.50%

4.50%

4.50%

6.00%

6.00%

6.00%

8.00%

8.00%

8.00%

4.00%

4.00%

4.00%

2.50%

N/A

N/A

2.50%

N/A

N/A

7.00%

4.50%

4.50%

2,834,532

11.21% $ 2,842,193

2,609,450

10.65% 2,385,323

54,616

10.03%

N/A

8.50%

6.00%

6.00%

$ 2,834,532

11.21% $ 2,842,193

2,609,450

10.65% 2,385,323

54,616

10.03%

N/A

2.50%

10.50%

$ 3,238,323

12.81% $ 3,116,144

N/A

N/A

N/A

N/A

N/A

8.00%

8.00%

2,866,949

11.70% 2,657,935

54,617

10.03%

N/A

4.00%

4.00%

4.00%

$ 2,834,532

8.72% $ 2,842,193

2,609,450

8.11% 2,385,323

54,616

8.37%

N/A

12.13 %

10.26 %

N/A

12.13 %

10.26 %

N/A

13.30 %

11.43 %

N/A

9.25 %

7.81 %

N/A

1  Capital conservation buffer is effective January 1, 2016 and is phased in through 2019. The phased in capital conservation buffer at 

December 31, 2016 is 0.625%. The fully phased in requirement of 2.50% is included in the table above. 

2  Missouri Bank and Trust Company of Kansas City dba Mobank was acquired by BOK Financial effective December 1, 2016.

152

 
 
Accumulated Other Comprehensive Income (Loss)

AOCI includes unrealized gains and losses on available for sale ("AFS") securities and non-credit related unrealized losses on 
AFS securities for which an other-than-temporary impairment has been recorded in earnings. AOCI also includes unrealized 
gains on AFS securities that were transferred from AFS to investment securities in 2011. Such amounts were amortized over the 
estimated remaining life of the security as an adjustment to yield, offsetting the related amortization of premium on the 
transferred securities. Unrealized losses on employee benefit plans will be reclassified into income as pension plan costs are 
recognized over the remaining service period of plan participants. Accumulated losses on the interest rate lock hedge of the 
subordinated debt issuance in 2005 were reclassified into income over the ten-year life of the debt. Gains and losses in AOCI 
are net of deferred income taxes.

A rollforward of the components of accumulated other comprehensive income (loss) is included as follows (in thousands):

Balance, December 31, 2013

Net change in unrealized gain (loss)

Reclassification adjustments included in earnings:

Interest revenue, Investment securities, Taxable securities

Interest expense, Subordinated debentures

Net impairment losses recognized in earnings

Gain on available for sale securities, net

Other comprehensive income (loss), before income taxes
Federal and state income tax1
Other comprehensive income (loss), net of income taxes

Balance, December 31, 2014

Net change in unrealized gain (loss)

Reclassification adjustments included in earnings:

Interest revenue, Investment securities, Taxable securities

Interest expense, Subordinated debentures

Net impairment losses recognized in earnings

Gain on available for sale securities, net

Other comprehensive income (loss), before income taxes
Federal and state income tax1
Other comprehensive income (loss), net of income taxes

Balance, December 31, 2015

Net change in unrealized gain (loss)

Reclassification adjustments included in earnings:

Interest revenue, Investment securities, Taxable securities

Interest expense, Subordinated debentures

Net impairment losses recognized in earnings

Gain on available for sale securities, net

Other comprehensive income (loss), before income taxes
Federal and state income tax1
Other comprehensive income (loss), net of income taxes

Balance, December 31, 2016
1  Calculated using 39% effective tax rate.

Unrealized Gain (Loss) on

Available
for Sale
Securities

Investment
Securities
Transferred
from AFS

Employee
Benefit
Plans

Loss on
Effective
Cash Flow
Hedges

Total

$

(23,175) $

1,118

$

(3,311) $

(255) $

(25,623)

136,050

—

—

—

373

(1,539)

134,884

52,470

82,414

59,239

(48,607)

—

—

1,819

(12,058)

(58,846)

(22,891)

(35,955)

23,284

(41,333)

—

—

—

(11,675)

(53,008)

(20,637)

(32,371)

(1,216)

—

—

—

(1,216)

(474)

(742)

376

—

(503)

—

—

—

(503)

(195)

(308)

68

—

(112)

—

—

—

(112)

(44)

(68)

725

—

—

—

—

725

282

443

(2,868)

1,804

—

—

—

—

1,804

701

1,103

(1,765)

(188)

—

—

—

—

(188)

(73)

(115)

—

136,775

—

296

—

—

296

115

181

(74)

—

—

121

—

—

121

47

74

—

—

—

—

—

—

—

—

—

(1,216)

296

373

(1,539)

134,689

52,393

82,296

56,673

(46,803)

(503)

121

1,819

(12,058)

(57,424)

(22,338)

(35,086)

21,587

(41,521)

(112)

—

—

(11,675)

(53,308)

(20,754)

(32,554)

$

(9,087) $

— $

(1,880) $

— $

(10,967)

153

(16)  Earnings Per Share 

The following table presents the computation of basic and diluted earnings per share (dollars in thousands, except per share 
data):

Year Ended

2016

2015

2014

Numerator:

Net income attributable to BOK Financial Corp. shareholders

$

232,668

$

288,565

$

292,435

Less: Earnings allocated to participating securities

Numerator for basic earnings per share – income available to common shareholders

Effect of reallocating undistributed earnings of participating securities

2,883

3,383

229,785

285,182

1

3

3,239

289,196

4

Numerator for diluted earnings per share – income available to common shareholders

$

229,786

$

285,185

$

289,200

Denominator:

Weighted average shares outstanding

65,901,110

68,397,215

69,159,902

Less:  Participating securities included in weighted average shares outstanding

815,483

802,526

765,708

Denominator for basic earnings per common share
Dilutive effect of employee stock compensation plans1
Denominator for diluted earnings per common share

Basic earnings per share

Diluted earnings per share
1  Excludes employee stock options with exercise prices greater than current market price.

65,085,627

67,594,689

68,394,194

58,271

96,969

150,576

65,143,898

67,691,658

68,544,770

$

$

$

$

3.53

3.53

—

$

$

4.22

4.21

—

4.23

4.22

—

(17)  Reportable Segments 

BOK Financial operates three principal lines of business: Commercial Banking, Consumer Banking and Wealth 
Management. Commercial Banking includes lending, treasury and cash management services and customer risk management 
products to small businesses, middle market and larger commercial customers. Commercial Banking also includes the 
TransFund EFT network. Consumer Banking includes retail lending and deposit services, lending and deposit services to small 
business customers served through the consumer branch network and all mortgage banking activities. Wealth Management 
provides fiduciary services, private bank services and investment advisory services in all markets. Wealth Management also 
underwrites state and municipal securities and engages in brokerage and trading activities. 

In addition to its lines of business, BOK Financial has a Funds Management unit. The primary purpose of this unit is to manage 
overall liquidity needs and interest rate risk. Each line of business borrows funds from and provides funds to the Funds 
Management unit as needed to support their operations. Operating results for Funds Management and other include the effect of 
interest rate risk positions and risk management activities, securities gains and losses including impairment charges, the 
provision for credit losses in excess of net loans charged off, tax planning strategies and certain executive compensation costs 
that are not attributed to the lines of business. 

BOK Financial allocates resources and evaluates performance of its lines of business after allocation of funds, actual net credit 
losses and capital costs. In addition, we measure the performance of our business lines after allocation of certain indirect 
expenses and taxes on statutory rates. The allocation for the prior comparable periods have been revised on a comparable basis. 

The cost of funds borrowed from the Funds Management unit by the operating lines of business is transfer priced at rates that 
approximate market rates for funds with similar duration. Market rates are generally based on the applicable LIBOR or interest 
rate swap rates, adjusted for prepayment risk. This method of transfer-pricing funds that support assets of the operating lines of 
business tends to insulate them from interest rate risk.

154

 
 
 
 
 
The value of funds provided by the operating lines of business to the Funds Management unit is based on rates which 
approximate the wholesale market rates for funds with similar duration and re-pricing characteristics. Market rates are 
generally based on LIBOR or interest rate swap rates. The funds credit formula applied to deposit products with indeterminate 
maturities is established based on their re-pricing characteristics reflected in a combination of the short-term LIBOR rates and a 
moving average of an intermediate term swap rate, with an appropriate spread applied to both. Shorter duration products are 
weighted towards the short-term LIBOR rate and longer duration products are weighted towards intermediate swap rates. The 
expected duration ranges from 30 days for certain rate-sensitive deposits to five years.

Substantially all revenue is from domestic customers. No single external customer accounts for more than 10% of total 
revenue.

Net loans charged off and provision for credit losses represents net loans charged off as attributed to the lines of business and 
the provision for credit losses in excess of net charge-offs attributed to Funds Management and Other.

The acquisition of Mobank on December 1, 2016 was not yet allocated to the operating segments at December 31, 2016. 
Accordingly, the operation, assets and liabilities of Mobank were included in Funds Management and Other for 2016.

Reportable segments reconciliation to the Consolidated Financial Statements for the year ended December 31, 2016 is as 
follows (in thousands):

Net interest and dividend revenue from external

sources

Net interest revenue (expense) from internal

sources

Net interest and dividend revenue

Provision for credit losses

Net interest and dividend revenue after

provision for credit losses

Other operating revenue

Other operating expense

Net direct contribution

Gain (loss) on financial instruments, net

Change in fair value of mortgage servicing

rights

Gain (loss) on repossessed assets, net

Corporate expense allocations

Net income before taxes

Federal and state income taxes

Net income

Net income (loss) attributable to non-controlling

interests

Net income attributable to BOK Financial Corp.

shareholders

Average assets

Commercial

Consumer

Wealth
Management

Funds
Management
and Other

BOK
Financial
Consolidated

$

492,967

$

85,998

$

33,006

$

135,257

$

747,228

(58,781)

434,186

32,959

401,227

195,521

216,451

380,297

10

—

669

35,760

345,216

134,289

210,927

—

$

210,927

$ 16,998,626

$

$

37,777

123,775

4,927

118,848

224,802

249,744

93,906

(26,252)

(2,193)

979

66,411

29

11

18

—

18

8,722,372

29,043

62,049

(801)

62,850

283,222

250,994

95,078

(42)

—

—

42,378

52,658

20,484

32,174

(8,039)

127,218

27,915

99,303

(29,525)

300,401

(230,623)

26,284

2,193

(1,648)

(144,549)

(59,245)

(48,407)

(10,838)

—

747,228

65,000

682,228

674,020

1,017,590

338,658

—

—

—

—

338,658

106,377

232,281

—

(387)

(387)

$

$

32,174

6,281,127

$

$

(10,451) $

232,668

276,277

$

32,278,402

155

 
Reportable segments reconciliation to the Consolidated Financial Statements for the year ended December 31, 2015 is as 
follows (in thousands):

Net interest and dividend revenue from external

sources

Net interest revenue (expense) from internal

sources

Net interest and dividend revenue

Provision for credit losses

Net interest and dividend revenue after

provision for credit losses

Other operating revenue

Other operating expense

Net direct contribution

Gain (loss) on financial instruments, net

Change in fair value of mortgage servicing

rights

Gain (loss) on repossessed assets, net

Corporate expense allocations

Net income before taxes

Federal and state income taxes

Net income

Net income attributable to non-controlling

interests

Net income attributable to BOK Financial Corp.

shareholders

Average assets

Commercial

Consumer

Wealth
Management

Funds
Management
and Other

BOK
Financial
Consolidated

$

439,751

$

84,848

$

24,744

$

154,011

$

703,354

(52,313)

387,438

(6,748)

394,186

177,729

202,804

369,111

—

—

708

43,279

326,540

127,024

199,516

28,503

113,351

6,934

106,417

218,095

203,070

121,442

(4,712)

(4,853)

916

74,936

37,857

14,726

23,131

—

—

$

199,516

$ 16,284,527

$

$

23,131

8,836,327

$

$

24,043

48,787

(1,083)

49,870

267,523

228,664

88,729

(204)

—

—

40,357

48,168

18,737

29,431

—

29,431

5,444,483

(233)

153,778

34,897

118,881

(4,867)

261,653

(147,639)

4,916

4,853

(1,624)

(158,572)

19,078

(21,103)

40,181

3,694

36,487

9,418

$

$

$

$

—

703,354

34,000

669,354

658,480

896,191

431,643

—

—

—

—

431,643

139,384

292,259

3,694

288,565

30,574,755

156

 
Reportable segments reconciliation to the Consolidated Financial Statements for the year ended December 31, 2014 is as 
follows (in thousands):

Net interest and dividend revenue from external

sources

Net interest revenue (expense) from internal

sources

Net interest and dividend revenue

Provision for credit losses

Net interest and dividend revenue after

provision for credit losses

Other operating revenue

Other operating expense

Net direct contribution

Gain (loss) on financial instruments, net

Change in fair value of mortgage servicing

rights

Gain (loss) on repossessed assets, net

Corporate expense allocations

Net income before taxes

Federal and state income taxes

Net income

Net income attributable to non-controlling

interests

Net income attributable to BOK Financial Corp.

shareholders

Average assets

Commercial

Consumer

Wealth
Management

Funds
Management
and Other

BOK
Financial
Consolidated

$

382,331

$

81,852

$

23,817

$

177,194

$

665,194

(40,083)

342,248

(7,447)

349,695

171,390

195,706

325,379

—

—

(3,187)

45,502

276,690

107,632

169,058

26,813

108,665

5,477

103,188

214,657

207,131

110,714

12,406

(16,445)

1,418

64,531

43,562

16,946

26,616

—

—

$

169,058

$ 15,394,957

$

$

26,616

8,373,317

$

$

20,959

44,776

213

44,563

242,268

218,000

68,831

(235)

—

—

38,731

29,865

11,617

18,248

—

18,248

5,002,515

(7,689)

169,505

1,757

167,748

(6,357)

226,685

(65,294)

(12,171)

16,445

1,769

(148,764)

89,513

7,956

81,557

3,044

—

665,194

—

665,194

621,958

847,522

439,630

—

—

—

—

439,630

144,151

295,479

3,044

$

$

78,513

$

292,435

(771,931) $

27,998,858

157

 
(18) Fair Value Measurements 

Fair value is defined by applicable accounting guidance as the price to sell an asset or transfer a liability in an orderly 
transaction between market participants in the principal market for the given asset or liability at the measurement date based on 
market conditions at that date. An orderly transaction assumes exposure to the market for a customary period for marketing 
activities prior to the measurement date and not a forced liquidation or distressed sale. Certain assets and liabilities are recorded 
in the Company’s financial statements at fair value. Some are recorded on a recurring basis and some on a non-recurring basis.

For some assets and liabilities, observable market transactions and market information might be available. For other assets and 
liabilities, observable market transactions and market information might not be available. A hierarchy for fair value has been 
established which categorizes into three levels the inputs to valuation techniques used to measure fair value. The three levels 
are as follows:

Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) - fair value is based on unadjusted quoted 
prices in active markets for identical assets or liabilities.

Significant Other Observable Inputs (Level 2) - fair value is based on significant other observable inputs which are 
generally determined based on a single price for each financial instrument provided to us by an applicable third-party 
pricing service and is based on one or more of the following:

•  Quoted prices for similar, but not identical, assets or liabilities in active markets;
•  Quoted prices for identical or similar assets or liabilities in inactive markets;
• 

Inputs other than quoted prices that are observable, such as interest rate and yield curves, volatilities, prepayment 
speeds, loss severities, credit risks and default rates;

•  Other inputs derived from or corroborated by observable market inputs.

Significant Unobservable Inputs (Level 3) - fair value is based upon model-based valuation techniques for which at least 
one significant assumption is not observable in the market. 

Transfers between levels are recognized as of the end of the reporting period. There were no transfers in or out of quoted prices 
in active markets for identical instruments to significant other observable inputs or significant unobservable inputs during the 
year ended December 31, 2016 and 2015, respectively. Transfers between significant other observable inputs and significant 
unobservable inputs during the year ended December 31, 2016 and 2015 are included in the summary of changes in recurring 
fair values measured using unobservable inputs.

The underlying methods used by the third-party pricing services are considered in determining the primary inputs used to 
determine fair values. Management has evaluated the methodologies employed by the third-party pricing services by 
comparing the price provided by the pricing service with other sources, including brokers' quotes, sales or purchases of similar 
instruments and discounted cash flows to establish a basis for reliance on the pricing service values. Significant differences 
between the pricing service provided value and other sources are discussed with the pricing service to understand the basis for 
their values. Based on all observable inputs, management may adjust prices obtained from third-party pricing services to more 
appropriately reflect the prices that would be received to sell assets or paid to transfer liabilities in orderly transactions in the 
current market. No significant adjustments were made to prices provided by third-party pricing services at December 31, 2016 
and 2015. 

158

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The fair value of financial assets and liabilities that are measured on a recurring basis is as follows as of December 31, 2016 (in 
thousands):

Quoted
Prices in
Active
Markets for
Identical
Instruments

Total

Significant
Other
Observable
Inputs

Significant
Unobservable
Inputs

Assets:

Trading securities:

U.S. government agency debentures

$

6,234

$

— $

6,234

$

U.S. agency residential mortgage-backed securities

Municipal and other tax-exempt securities

Other trading securities

Total trading securities

Available for sale securities:

U.S. Treasury securities

Municipal and other tax-exempt securities

U.S. government agency residential mortgage-backed securities

Privately issued residential mortgage-backed securities

Commercial mortgage-backed securities guaranteed by U.S.

government agencies

Other debt securities

Perpetual preferred stock

Equity securities and mutual funds

Total available for sale securities

Fair value option securities – U.S. government agency residential

mortgage-backed securities

Residential mortgage loans held for sale
Mortgage servicing rights, net1
Derivative contracts, net of cash margin2

Liabilities:

Derivative contracts, net of cash margin2

310,067

14,427

6,900

337,628

999

40,993

5,460,386

115,535

3,017,933

4,152

18,474

18,357

8,676,829

77,046

301,897

247,073

689,872

—

—

—

—

999

—

—

—

—

—

—

3,495

4,494

—

—

—

310,067

14,427

6,900

337,628

—

35,204

5,460,386

115,535

3,017,933

—

18,474

14,862

8,662,394

77,046

290,280

—

7,541

682,331

664,531

6,972

657,559

—

—

—

—

—

—

5,789

—

—

—

4,152

—

—

9,941

—

11,617

247,073

—

—

1  A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to 

determine fair value are presented in Note 7, Mortgage Banking Activities.

2  See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts in a net asset position that were valued 
based on quoted prices in active markets or identical instruments (Level 1) are exchange-traded interest rate and energy derivative 
contracts, net of cash margin. Derivative contracts in a net liability position that were valued using quoted prices in active markets for 
identical instruments (Level 1) are exchange-traded interest rate, energy and agricultural derivative contracts, net of cash margin.

159

 
 
 
 
 
 
 
 
 
 
 
 
 
The fair value of financial assets and liabilities that are measured on a recurring basis is as follows as of December 31, 2015 (in 
thousands):

Quoted
Prices in
Active
Markets for
Identical
Instruments

Total

Significant
Other
Observable
Inputs

Significant
Unobservable
Inputs

Assets:

Trading securities:

U.S. government agency debentures

$

61,295

$

— $

61,295

$

U.S. government agency residential mortgage-backed securities

Municipal and other tax-exempt securities

Other trading securities

Total trading securities

Available for sale securities:

U.S. Treasury securities

Municipal and other tax-exempt securities

U.S. government agency residential mortgage-backed securities

Privately issued residential mortgage-backed securities

Commercial mortgage-backed securities guaranteed by U.S.

government agencies

Other debt securities

Perpetual preferred stock

Equity securities and mutual funds

Total available for sale securities

Fair value option securities – U.S. government agency residential

mortgage-backed securities

Residential mortgage loans held for sale
Mortgage servicing rights, net1
Derivative contracts, net of cash margin2

Liabilities:

Derivative contracts, net of cash margin 2

10,989

31,901

18,219

122,404

995

56,817

5,898,351

139,118

2,905,796

4,151

19,672

17,833

9,042,733

444,217

308,439

218,605

586,270

10,989

31,901

18,219

122,404

—

47,207

5,898,351

139,118

2,905,796

—

19,672

14,568

9,024,712

444,217

300,565

—

—

—

—

995

—

—

—

—

—

—

3,265

4,260

—

—

—

—

218,605

38,530

547,740

—

—

—

—

—

—

9,610

—

—

—

4,151

—

—

13,761

—

7,874

—

—

581,701

—

581,701

1  A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to 

determine fair value are presented in Note 7, Mortgage Banking Activities.

2  See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts in a net asset position that were valued 

based on quoted prices in active markets for identical instruments (Level 1) are exchange-traded energy derivative contracts, net of cash 
margin. Derivative contracts in a net liability position that were valued using quoted prices in active markets for identical instruments 
based on quoted prices in active markets for identical instruments (Level 1) are exchange-traded interest rate and agricultural derivative 
contracts, fully offset by cash margin.

160

 
 
 
 
 
 
 
 
 
 
 
Following is a description of the Company's valuation methodologies used for assets and liabilities measured on a recurring 
basis:

Securities

The fair values of trading, available for sale and fair value option securities are based on quoted prices for identical instruments 
in active markets, when available. If quoted prices for identical instruments are not available, fair values are based on 
significant other observable inputs such as quoted prices of comparable instruments or interest rates and credit spreads, yield 
curves, volatilities, prepayment speeds and loss severities. 

The fair value of certain available for sale municipal and other debt securities may be based on significant unobservable inputs. 
These significant unobservable inputs include limited observed trades, projected cash flows, current credit rating of the issuers 
and, when applicable, the insurers of the debt and observed trades of similar debt. Discount rates are primarily based on 
reference to interest rate spreads on comparable securities of similar duration and credit rating as determined by the nationally-
recognized rating agencies adjusted for a lack of trading volume. Significant unobservable inputs are developed by investment 
securities professionals involved in the active trading of similar securities. A summary of significant inputs used to value these 
securities follows. A management committee composed of senior members from the Company's Capital Markets, Risk 
Management and Finance departments assess the appropriateness of these inputs quarterly.

Derivatives 

All derivative instruments are carried on the balance sheet at fair value. Fair values for exchange-traded contracts are based on 
quoted prices. Fair values for over-the-counter interest rate, commodity and foreign exchange contracts are based on valuations 
provided either by third-party dealers in the contracts, quotes provided by independent pricing services, or a third-party 
provided pricing model that uses significant other observable market inputs. 

Credit risk is considered in determining the fair value of derivative instruments. Management determines fair value adjustments 
based on various risk factors including but not limited to counterparty credit rating or equivalent loan grading, derivative 
contract notional size, price volatility of the underlying commodity, duration of the derivative contracts and expected loss 
severity. Expected loss severity is based on historical losses for similarly risk graded commercial loan customers. Decreases in 
counterparty credit rating or grading and increases in price volatility and expected loss severity all tend to increase the credit 
quality adjustment which reduces the fair value of asset contracts. 

We also consider our own credit risk in determining the fair value of derivative contracts. Changes in our credit rating would 
affect the fair value of our derivative liabilities. In the event of a credit downgrade, the fair value of our derivative liabilities 
would increase. The change in the fair value would be recognized in earnings in the current period.

Residential Mortgage Loans Held for Sale

Residential mortgage loans held for sale are carried on the balance sheet at fair value. The fair values of conforming residential 
mortgage loans held for sale are based upon quoted market prices of such loans sold in securitization transactions, including 
related unfunded loan commitments. The fair value of mortgage loans that are unable to be sold to U.S. government agencies is 
determined using quoted prices of loans that are sold in securitization transactions with a liquidity discount applied.

Other Assets - Private Equity Funds

The fair value of the portfolio investments of the Company's two private equity funds are based upon net asset value reported 
by the underlying funds, as adjusted by the general partner when necessary, as a practical expedient to measure the fair value of 
the investments in the underlying funds. The Company's private equity funds provide customers alternative investment 
opportunities as limited partners of the funds. As fund of funds, the private equity funds invest in other limited partnerships or 
limited liability companies that invest substantially all of their assets in U.S. companies pursuing diversified investment 
strategies including early-stage venture capital, distressed securities and corporate or asset buy-outs. Private equity fund assets 
are long-term, illiquid investments. No secondary market exists for these assets. The private equity funds typically invest in 
funds that provide no redemption rights to investors. The fair value of the private equity investments may only be realized 
through cash distributions from the underlying funds. 

See Note 14 for disclosure of the fair value of the private equity funds using the net asset value per share of the underlying 
investments, as a practical expedient, included in Other assets in the Consolidated Balance Sheets of the Company. 

161

The following represents the changes related to assets measured at fair value on a recurring basis using significant 
unobservable inputs (in thousands):

Balance, December 31, 2014
Transfer to Level 3 from Level 21
Purchases and capital calls

Redemptions and distributions

Proceeds from sales

Gain (loss) recognized in earnings:

Mortgage banking revenue

Other comprehensive income (loss):

Net change in unrealized gain (loss)

Balance, December 31, 2015
Transfer to Level 3 from Level 21
Purchases and capital calls

Redemptions and distributions

Proceeds from sales

Gain (loss) recognized in earnings:

Mortgage banking revenue

Other comprehensive income (loss):

Net change in unrealized gain (loss)

Available for Sale

Securities

Municipal
and other
tax-exempt
securities

Other debt
securities

Residential
mortgage
loans held
for sale

$

10,093

$

4,150

$

11,856

—

—

—

—

—

(483)

9,610

—

—

(3,975)

—

—

154

—

—

—

—

—

1

4,151

—

—

—

—

—

1

2,193

—

—

(6,283)

108

—

7,874

6,631

—

—

(2,540)

(348)

—

Balance, December 31, 2016
11,617
1  Recurring transfers to Level 3 from Level 2 consist of residential mortgage loans intended for sale to U.S. government agencies that fail to 

5,789

4,152

$

$

$

meet conforming standards.

162

 
 
A summary of quantitative information about assets measured at fair value on a recurring basis using significant unobservable 
inputs (Level 3) as of December 31, 2016 follows (in thousands):

Quantitative Information about Level 3 Recurring Fair Value Measurements

Amortized
Cost/
Unpaid 
Principal 
Balance

Par
Value

Fair
Value

Valuation Technique(s)

Significant
Unobservable
Input

Range
(Weighted Average)

Available for sale securities:

Municipal and other tax-
exempt securities

$

6,195

$

6,163

$

5,712

Discounted cash flows

Other debt securities

4,400

4,400

4,152

Discounted cash flows

Residential mortgage loans

held for sale

N/A

12,431

11,617

Quoted prices of loans
sold in securitization
transactions, with a
liquidity discount
applied

1

1

Interest rate
spread

Interest rate
spread

Liquidity
discount applied
to the market
value of
mortgage loans
qualifying for
sale to U.S.
government
agencies

5.91%-6.21% (6.16%)

90.00%-93.40% (92.20%)

6.01% - 6.26% (6.23%)
94.34% - 94.36% (94.36%)

2

3

4

3

93.45%

1  Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and 

credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume.

2  Interest rate yields used to value investment grade tax-exempt securities represent a spread of 467 to 525 basis points over average yields for comparable 

tax-exempt securities.

3  Represents fair value as a percentage of par value.
4  Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding 

approximately 1%. 

A summary of quantitative information about Recurring Fair Value Measurements based on Significant Unobservable Inputs 
(Level 3) as of December 31, 2015 follows (in thousands):

Quantitative Information about Level 3 Recurring Fair Value Measurements

Par
Value

Amortized
Cost6

Fair
Value

Valuation Technique(s)

Significant
Unobservable
Input

Range
(Weighted Average)

Available for sale securities:

Municipal and other tax-
exempt securities

$

10,370

$

10,311

$

9,610

Discounted cash flows

Other debt securities

4,400

4,400

4,151

Discounted cash flows

1

1

Interest rate
spread

Interest rate
spread

5.47%-5.77% (5.73%)

92.34%-92.93% (92.67%)
5.80% - 5.92% (5.90%)
94.33% - 94.34% (94.34%)

2

3

4

3

Residential mortgage loans

held for sale

N/A

8,395

7,874

Liquidity
discount applied
to the market
value of
mortgage loans
qualifying for
sale to U.S.
government
agencies

Quoted prices of loans
sold in securitization
transactions, with a
liquidity discount
applied

93.79%

1  Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and 

credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume.

2  Interest rate yields used to value investment grade tax-exempt securities represent a spread of 499 to 541 basis points over average yields for comparable 

tax-exempt securities.

3  Represents fair value as a percentage of par value.
4  Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 

1%. 

163

Fair Value of Assets and Liabilities Measured on a Non-Recurring Basis

Assets measured at fair value on a non-recurring basis include pension plan assets, which are based on quoted prices in active 
markets for identical instruments, collateral for certain impaired loans and real property and other assets acquired to satisfy 
loans, which are based primarily on comparisons to completed sales of similar assets. See Note 6 for information related to the 
non-recurring fair value measurement of Mobank.

The following represents the carrying value of assets measured at fair value on a non-recurring basis and related losses 
recorded during the year. The carrying value represents only those assets with the balance sheet date for which the fair value 
was adjusted during the year:

Carrying Value at December 31, 2016

Fair Value Adjustments for the
Year Ended December 31, 2016
Recognized In:

Quoted Prices
in Active 
Markets for 
Identical 
Instruments

Significant
Other
Observable
Inputs

Significant
Unobservable
Inputs

Gross charge-
offs against
allowance for
loan losses

Net losses and
expenses of
repossessed
assets, net

Impaired loans
Real estate and other repossessed assets

$

— $
—

$

539
7,965

$

11,295
2,192

$

7,594
—

—
2,527

Carrying Value at December 31, 2015

Fair Value Adjustments for the
 Year Ended December 31, 2015
Recognized In:

Quoted Prices
in Active 
Markets for 
Identical 
Instruments

Significant
Other
Observable
Inputs

Significant
Unobservable
Inputs

Gross charge-
offs against
allowance for
loan losses

Net losses and
expenses of
repossessed
assets, net

Impaired loans
Real estate and other repossessed assets

$

— $
—

$

252
13,611

$

20,805
245

$

4,042
—

—
1,820

The fair value of collateral-dependent impaired loans and real estate and other repossessed assets and the related fair value 
adjustments are generally based on unadjusted third-party appraisals. Our appraisal review policies require appraised values to 
be supported by observed inputs derived principally from or corroborated by observable market data. Appraisals that are not 
based on observable inputs or that require significant adjustments or fair value measurements that are not based on third-party 
appraisals are considered to be based on significant unobservable inputs. Non-recurring fair value measurements of collateral-
dependent impaired loans and real estate and other repossessed assets based on significant unobservable inputs are generally 
due to estimates of current fair values between appraisal dates. Significant unobservable inputs include listing prices for 
comparable assets, uncorroborated expert opinions or management's knowledge of the collateral or industry. Non-recurring fair 
value measurements of collateral dependent loans secured by mineral rights are generally determined by our internal staff of 
engineers on projected cash flows under current market conditions and are based on significant unobservable inputs. Projected 
cash flows are discounted according to risk characteristics of the underlying oil and gas properties. Assets are evaluated to 
demonstrate with reasonable certainty that crude oil, natural gas and natural gas liquids can be recovered from known oil and 
gas reservoirs under existing economic and operating conditions at current prices with existing conventional equipment, 
operating methods and costs. Significant unobservable inputs are developed by asset management and workout professionals 
and approved by senior Credit Administration executives.

164

 
 
 
 
 
A summary of quantitative information about Non-recurring Fair Value Measurements based on Significant Unobservable 
Inputs (Level 3) as of December 31, 2016 follows (in thousands):

Quantitative Information about Level 3 Non-recurring Fair Value Measurements

Fair
Value

Valuation
Technique(s)

Significant Unobservable Input

Impaired loans

$ 11,295

Appraised value,
as adjusted

Recoverable oil and gas reserves,
forward-looking commodity prices and
estimated operating costs

Range
(Weighted Average)

22% - 59% (57%)1

Appraised value,
Real estate and other repossessed assets
as adjusted
1  Represents fair value as a percentage of the unpaid principal balance.
2  Marketability adjustments include consideration of estimated costs to sell which is approximately 10% of the fair value. 

Marketability adjustments off 
appraised value2

2,192

70% - 87% (74%)

A summary of quantitative information about Non-recurring Fair Value Measurements based on Significant Unobservable 
Inputs (Level 3) as of December 31, 2015 follows (in thousands):

Quantitative Information about Level 3 Non-recurring Fair Value Measurements

Fair
Value

Valuation
Technique(s)

Significant Unobservable Input

Range
(Weighted Average)

Impaired loans

$ 20,805

Appraised value,
as adjusted

Broker quotes and management's
knowledge of industry and collateral.

N/A

Real estate and other repossessed assets
1  Marketability adjustments include consideration of estimated costs to sell which is approximately 10% of the fair value. 

245

Appraised value,
as adjusted

Marketability adjustments off 
appraised value1

66%-81% (74%)

The fair value of pension plan assets was approximately $42 million at December 31, 2016 and $44 million at December 31, 
2015, determined by significant other observable inputs. Fair value adjustments of pension plan assets along with changes in 
the projected benefit obligation are recognized in other comprehensive income. 

165

Fair Value of Financial Instruments

The following table presents the carrying values and estimated fair values of all financial instruments, including those financial 
assets and liabilities that are not measured and reported at fair value on a recurring basis or non-recurring (dollars in 
thousands): 

Cash and due from banks

Interest-bearing cash and cash equivalents

Trading securities:

U.S. government agency debentures

U.S. government agency residential mortgage-backed securities

Municipal and other tax-exempt securities

Other trading securities

Total trading securities

Investment securities:

Municipal and other tax-exempt securities

U.S. government agency residential mortgage-backed securities

Other debt securities

Total investment securities

Available for sale securities:

U.S. Treasury securities

Municipal and other tax-exempt securities

U.S. government agency residential mortgage-backed securities

Privately issued residential mortgage-backed securities

Commercial mortgage-backed securities guaranteed by U.S.

government agencies

Other debt securities

Perpetual preferred stock

Equity securities and mutual funds

Total available for sale securities

Fair value option securities – U.S. government agency residential

mortgage-backed securities

Residential mortgage loans held for sale

Loans:

Commercial

Commercial real estate

Residential mortgage

Personal

Total loans

Allowance for loan losses

Loans, net of allowance

Mortgage servicing rights

Derivative instruments with positive fair value, net of cash margin

Deposits with no stated maturity

Time deposits

Other borrowed funds

Subordinated debentures

Derivative instruments with negative fair value, net of cash margin

December 31, 2016

Quoted
Prices in
Active
Markets for
Identical
Instruments
(Level 1)

Significant
Other
Observable
Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3)

Carrying
Value

Estimated
Fair Value

$

620,846

620,846

620,846

1,916,651

1,916,651

1,916,651

6,234

310,067

14,427

6,900

337,628

320,364

20,777

205,004

546,145

6,234

310,067

14,427

6,900

337,628

321,225

21,473

222,795

565,493

999

40,993

5,460,386

115,535

999

40,993

5,460,386

115,535

3,017,933

3,017,933

4,152

18,474

18,357

4,152

18,474

18,357

8,676,829

8,676,829

77,046

301,897

77,046

301,897

10,390,824

10,437,016

3,809,046

1,949,832

839,958

3,850,981

2,025,159

864,904

16,989,660

17,178,060

(246,159)

—

16,743,501

17,178,060

247,073

689,872

247,073

689,872

20,526,295

20,526,295

2,221,800

5,572,662

144,640

664,531

2,218,303

5,556,327

128,903

664,531

166

—

—

—

—

—

—

—

—

—

999

—

—

—

—

—

—

3,495

4,494

—

—

—

—

—

—

—

—

—

—

7,541

—

—

—

—

6,972

—

—

6,234

310,067

14,427

6,900

337,628

321,225

21,473

222,795

565,493

—

35,204

5,460,386

115,535

3,017,933

—

18,474

14,862

8,662,394

77,046

290,280

—

—

—

—

—

—

—

—

—

—

—

—

5,789

—

—

—

4,152

—

—

9,941

—

11,617

—

—

—

—

—

—

—

—

10,437,016

3,850,981

2,025,159

864,904

17,178,060

—

17,178,060

247,073

682,331

—

—

—

—

128,903

657,559

20,526,295

2,218,303

5,556,327

—

—

 
 
 
 
 
 
 
December 31, 2015

Quoted
Prices in
Active
Markets for
Identical
Instruments
(Level 1)

Significant
Other
Observable
Inputs
(Level 2)

Significant
Unobservable
Inputs
(Level 3)

Carrying
Value

Estimated
Fair Value

$

573,699

$

573,699

573,699

2,069,900

2,069,900

2,069,900

— $

—

Cash and due from banks

Interest-bearing cash and cash equivalents

Trading securities:

U.S. government agency debentures

U.S. government agency residential mortgage-backed securities

Municipal and other tax-exempt securities

Other trading securities

Total trading securities

Investment securities:

Municipal and other tax-exempt securities

U.S. government agency residential mortgage-backed securities

Other debt securities

Total investment securities

Available for sale securities:

U.S. Treasury securities

Municipal and other tax-exempt securities

61,295

10,989

31,901

18,219

61,295

10,989

31,901

18,219

122,404

122,404

365,258

26,833

205,745

597,836

995

56,817

368,910

27,874

232,375

629,159

995

56,817

U.S. government agency residential mortgage-backed securities

5,898,351

5,898,351

Privately issued residential mortgage-backed securities

139,118

139,118

Commercial mortgage-backed securities guaranteed by U.S.

government agencies

Other debt securities

Perpetual preferred stock

Equity securities and mutual funds

Total available for sale securities

Fair value option securities – U.S. government agency residential

mortgage-backed securities

Residential mortgage loans held for sale

Loans:

Commercial

Commercial real estate

Residential mortgage

Personal

Total loans

Allowance for loan losses

Loans, net of allowance

Mortgage servicing rights

Derivative instruments with positive fair value, net of cash margin

Deposits with no stated maturity

Time deposits

Other borrowed funds

Subordinated debentures

Derivative instruments with negative fair value, net of cash margin

2,905,796

2,905,796

4,151

19,672

17,833

4,151

19,672

17,833

9,042,733

9,042,733

444,217

308,439

444,217

308,439

10,252,531

10,053,952

3,259,033

1,876,893

552,697

3,233,476

1,902,976

549,068

15,941,154

15,739,472

(225,524)

—

15,715,630

15,739,472

218,605

586,270

218,605

586,270

18,682,094

18,682,094

2,406,064

6,051,515

226,350

581,701

2,394,562

5,600,932

223,758

581,701

—

—

—

—

—

—

—

—

—

—

—

—

9,610

—

—

—

4,151

—

—

13,761

—

7,874

10,053,952

3,233,476

1,902,976

549,068

15,739,472

—

15,739,472

218,605

—

18,682,094

2,394,562

5,600,932

223,758

—

—

—

—

—

—

—

—

—

—

995

—

—

—

—

—

—

3,265

4,260

—

—

—

—

—

—

—

—

—

—

61,295

10,989

31,901

18,219

122,404

368,910

27,874

232,375

629,159

—

47,207

5,898,351

139,118

2,905,796

—

19,672

14,568

9,024,712

444,217

300,565

—

—

—

—

—

—

—

—

38,530

547,740

—

—

—

—

—

—

—

—

—

581,701

Because no market exists for certain of these financial instruments and management does not intend to sell these financial 
instruments, the fair values shown in the tables above may not represent values at which the respective financial instruments 
could be sold individually or in the aggregate at the given reporting date.

167

 
 
 
 
 
 
 
 
The following methods and assumptions were used in estimating the fair value of these financial instruments:

Cash and Cash Equivalents

The book value reported in the consolidated balance sheet for cash and short-term instruments approximates those assets’ fair 
values.

Securities

The fair values of securities are generally based on Significant Other Observable Inputs such as quoted prices for comparable 
instruments or interest rates and credit spreads, yield curves, volatilities, prepayment speeds and loss severities. 

Loans

The fair value of loans, excluding loans held for sale, are based on discounted cash flow analyses using interest rates and credit 
and liquidity spreads currently being offered for loans with similar remaining terms to maturity and risk, adjusted for the impact 
of interest rate floors and ceilings which are classified as Significant Unobservable Inputs. The fair values of loans were 
estimated to approximate their discounted cash flows less loan loss allowances allocated to these loans of $218 million at 
December 31, 2016 and $195 million at December 31, 2015. A summary of assumptions used in determining the fair value of 
loans follows:

December 31, 2016

Commercial

Commercial real estate

Residential mortgage

Personal

December 31, 2015

Commercial

Commercial real estate

Residential mortgage

Personal

Deposits

Range of
Contractual
Yields

Average
Re-pricing
(in years)

Discount
Rate

0.38% - 30.00%

0.38% - 18.00%

1.74% - 18.00%

0.25% - 21.00%

0.25% - 30.00%

0.38% - 18.00%

1.67% - 18.00%

0.38% - 21.00%

0.70

0.71

2.27

0.40

0.62

0.73

2.42

0.37

0.64% - 4.60%

0.94% - 4.27%

1.71% - 4.26%

1.03% - 4.59%

0.52% - 4.34%

0.95% - 3.93%

0.86% - 4.25%

1.19% - 4.11%

The fair values of time deposits are based on discounted cash flow analyses using interest rates currently being offered on 
similar transactions which are considered Significant Unobservable Inputs. Estimated fair value of deposits with no stated 
maturity, which includes demand deposits, transaction deposits, money market deposits and savings accounts, is equal to the 
amount payable on demand. Although market premiums paid reflect an additional value for these low cost deposits, adjusting 
fair value for the expected benefit of these deposits is prohibited. Accordingly, the positive effect of such deposits is not 
included in the tables above.A summary of assumptions used in determining the fair value of time deposits follows:

December 31, 2016

December 31, 2015

Range of
Contractual
Yields

0.02% - 9.65%

0.02% - 5.50%

Average
Re-pricing
(in years)

1.96

1.78

Discount
Rate

1.57% - 2.00%

1.11% - 1.57%

168

 
 
 
 
 
 
 
 
Other Borrowed Funds and Subordinated Debentures

The fair values of these instruments are based upon discounted cash flow analyses using interest rates currently being offered 
on similar instruments which are considered Significant Unobservable Inputs. A summary of assumptions used in determining 
the fair value of other borrowings and subordinated debentures follows:

December 31, 2016

Other borrowed funds

Subordinated debentures

December 31, 2015

Other borrowed funds

Subordinated debentures

Off-Balance Sheet Instruments

Range of
Contractual
Yields

Average
Re-pricing
(in years)

Discount
Rate

0.25% - 3.50%

5.38%

0.00

16.86

0.55% - 3.22%

6.11%

0.25% - 3.40%

1.05%

0.00

1.37

0.20% - 2.89%

2.12%

The fair values of commercial loan commitments are based on fees currently charged to enter into similar agreements, taking 
into account the remaining terms of the agreements. The fair values of these off-balance sheet instruments were not significant 
at December 31, 2016 or December 31, 2015.

Fair Value Election

As more fully disclosed in Note 2 and Note 7 to the Consolidated Financial Statements, the Company has elected to carry all 
U.S. government agency residential mortgage-backed securities held as economic hedges against changes in the fair value of 
mortgage servicing rights and all residential mortgage loans originated for sale at fair value. Changes in the fair value of these 
financial instruments are recognized in earnings.

169

 
 
(19) Parent Company Only Financial Statements 

Summarized financial information for BOK Financial – Parent Company Only follows:

Balance Sheets
(In thousands)

Assets

Cash and cash equivalents

Available for sale securities

Investment in bank subsidiaries

Investment in non-bank subsidiaries

Other assets

Total assets

Liabilities and Shareholders’ Equity

Liabilities:

Other liabilities

Other borrowings – Trust preferred debt

Subordinated debentures

Total liabilities

Shareholders’ equity:

Common stock

Capital surplus

Retained earnings

Treasury stock

Accumulated other comprehensive income (loss)

Total shareholders’ equity

Total liabilities and shareholders’ equity

December 31,

2016

2015

$

163,418

$

282,169

19,234

20,150

3,067,595

2,746,810

177,068

4,865

186,271

1,534

$

3,432,180

$

3,236,934

$

5,469

$

6,378

7,217

144,640

157,326

—

—

6,378

4

4

1,006,535

2,823,334

(544,052)

(10,967)

982,009

2,704,121

(477,165)

21,587

3,274,854

3,230,556

$

3,432,180

$

3,236,934

170

 
 
 
Statements of Earnings
(In thousands)

Dividends, interest and fees received from bank subsidiaries

$

15,237

$

150,308

$

75,412

Year Ended December 31,

2016

2015

2014

Dividends, interest and fees received from non-bank subsidiaries

Other revenue

Total revenue

Interest expense

Charitable contributions to BOKF Foundation

Professional fees and services

Other operating expense

Total expense

Income before taxes and equity in undistributed income of subsidiaries

Federal and state income taxes

Income before equity in undistributed income of subsidiaries
Equity in undistributed income of bank subsidiaries

Equity in undistributed income of non-bank subsidiaries

25,923

1,612

42,772

4,182

—

395

1,583

6,160

36,612

(1,920)

38,532

216,120

(21,984)

—

1,279

151,587

131

—

378

1,864

2,373

149,214

(375)

149,589

134,045

4,931

—

1,572

76,984

293

2,420

600

1,556

4,869

72,115

(1,702)

73,817

214,435

4,183

Net income attributable to BOK Financial Corp. shareholders

$

232,668

$

288,565

$

292,435

171

Statements of Cash Flows
(In thousands)

Cash Flows From Operating Activities:

Net income

Adjustments to reconcile net income to net cash provided by operating activities:

Equity in undistributed income of bank subsidiaries

Equity in undistributed income of non-bank subsidiaries

Tax effect from equity compensation, net

Change in other assets

Change in other liabilities

Net cash provided by operating activities

Cash Flows From Investing Activities:

Proceeds from sales of available for sale securities

Investment in subsidiaries

Acquisitions, net of cash acquired

Net cash used in investing activities

Cash Flows From Financing Activities:

Issuance of subordinated debentures, net of issuance costs

Issuance of common and treasury stock, net

Tax effect from equity compensation, net

Dividends paid

Repurchase of common stock

Net cash used in financing activities

Net decrease in cash and cash equivalents

Cash and cash equivalents at beginning of period

Cash and cash equivalents at end of period

Cash paid for interest

Issuance of shares in settlement of deferred compensation, net

(20) Subsequent Events 

Year Ended December 31,

2016

2015

2014

$

232,668

$

288,565

$

292,435

(216,120)

(134,045)

(214,435)

21,984

(1,505)

(2,933)

(1,285)

32,809

1,632

(26,000)

(105,520)

(129,888)

144,615

12,455

1,505

(113,455)

(66,792)

(21,672)

(118,751)

282,169

(4,931)

(925)

49

(2,818)

145,895

4,760

(41,969)

—

(4,183)

(8,258)

8,726

1,055

75,340

—

(15,336)

—

(37,209)

(15,336)

—

6,711

925

(115,281)

(229,540)

(337,185)

(228,499)

510,668

—

4,472

8,258

(111,026)

(12,337)

(110,633)

(50,629)

561,297

$

$
$

163,418

$

282,169

$

510,668

4,127

$
— $

131
$
— $

293
8,352

The Company evaluated events from the date of the consolidated financial statements on December 31, 2016 through the 
issuance of those consolidated financial statements included in this Annual Report on Form 10-K. No events were identified 
requiring recognition in and/or disclosure in the consolidated financial statements.

172

 
 
 
 
(This page has been left blank intentionally.)

173

Annual Financial Summary – Unaudited
Consolidated Daily Average Balances, Average Yields and Rates

(Dollars in Thousands, Except Per Share Data)

Assets

Interest-bearing cash and cash equivalents
Trading securities
Investment securities

Taxable
Tax-exempt

Total investment securities
Available for sale securities

Taxable
Tax-exempt

Total available for sale securities
Fair value option securities
Restricted equity securities
Residential mortgage loans held for sale
Loans
Allowance for loan losses

Loans, net of allowance
Total earning assets

Receivable on unsettled securities sales
Cash and other assets
Total assets

Liabilities and equity

Interest-bearing deposits:

Transaction
Savings
Time

Total interest-bearing deposits
Funds purchased
Repurchase agreements
Other borrowings
Subordinated debentures

Total interest-bearing liabilities
Non-interest bearing demand deposits
Due on unsettled securities purchases
Other liabilities
Total equity

Total liabilities and equity

Tax-equivalent Net Interest Revenue
Tax-equivalent Net Interest Revenue to Earning Assets
Less tax-equivalent adjustment
Net Interest Revenue
Provision for credit losses
Other operating revenue
Other operating expense
Net income before taxes
Federal and state income taxes
Net income
Net income attributable to non-controlling interests
Net income attributable to BOK Financial Corporation shareholders
Earnings Per Average Common Share Equivalent:

Net income:
Basic
Diluted

Year Ended
December 31, 2016

Average
Balance

Revenue/
Expense

Yield/
Rate

10,726
9,213

12,268
7,567
19,835

173,272
3,353
176,625
6,723
17,238
12,658
593,700

593,700
846,718

13,906
386
26,202
40,494
186
248
34,902
6,059
81,889

0.53%
3.43%

5.42%
2.26%
3.54%

2.01%
5.18%
2.03%
1.93%
5.37%
3.45%
3.63%

3.68%
2.95%

0.14%
0.09%
1.16%
0.33%
0.24%
0.04%
0.58%
2.82%
0.42%

$

2,038,919
317,808

$

226,442
334,812
561,254

8,799,716
67,667
8,867,383
323,695
320,975
370,600
16,357,867
(243,631)
16,114,236
28,914,870
114,773
3,248,759
32,278,402

9,744,998
414,103
2,259,242
12,418,343
78,222
589,145
6,019,647
214,842
19,320,199
8,474,230
132,539
1,002,018
3,349,416
32,278,402

$

$

$

$

$

764,829

2.53%
2.66%

17,601
747,228
65,000
674,020
1,017,590
338,658
106,377
232,281
(387)
232,668

3.53
3.53

$

$
$

Yield calculations are shown on a tax equivalent at the statutory federal and state rates for the periods presented.The yield calculations exclude security trades 
that have been recorded on trade date with no corresponding interest income and the unrealized gains and losses. The yield calculation also include average 
loan balances for which the accrual of interest has been discontinued and are net of unearned income. Yield/rate calculations are generally based on the 
conventions that determine how interest income and expense is accrued.

174

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Annual Financial Summary – Unaudited (continued)
Consolidated Daily Average Balances, Average Yields and Rates

(Dollars in Thousands, Except Per Share Data)

Year Ended

December 31, 2015

Average
Balance

Revenue/
Expense

Yield/
Rate

Average
Balance

December 31, 2014
Revenue/
Expense

Yield/
Rate

Assets

Interest-bearing cash and cash equivalents
Trading securities
Investment securities

$

2,031,403
149,572

$

Taxable
Tax-exempt

Total investment securities
Available for sale securities

Taxable
Tax-exempt

Total available for sale securities
Fair value option securities
Restricted equity securities
Residential mortgage loans held for sale
Loans
Allowance for loan losses

Loans, net of allowance
Total earning assets

Receivable on unsettled securities sales
Cash and other assets
Total assets

Liabilities and equity

Interest-bearing deposits:

Transaction
Savings
Time

Total interest-bearing deposits
Funds purchased
Repurchase agreements
Other borrowings
Subordinated debentures

Total interest-bearing liabilities
Non-interest bearing demand deposits
Due on unsettled securities purchases
Other liabilities
Total equity

$

$

Total liabilities and equity

$

Tax-equivalent Net Interest Revenue
Tax-equivalent Net Interest Revenue to

Earning Assets

Less tax-equivalent adjustment
Net Interest Revenue
Provision for credit losses
Other operating revenue
Other operating expense
Net income before taxes
Federal and state income taxes
Net income
Net income attributable to non-controlling

interests

Net income attributable to BOK Financial

Corporation shareholders

Earnings Per Average Common Share

Equivalent:

Net income:
Basic
Diluted

5,580
3,055

12,932
5,971
18,903

172,582
3,341
175,923
9,264
13,532
13,602
539,426

539,426
779,285

8,821
383
34,966
44,170
65
282
13,857
5,100
63,474

236,193
386,122
622,315

8,937,418
81,469
9,018,887
426,461
230,140
380,979
15,063,002
(200,872)
14,862,130
27,721,887
80,079
2,772,789
30,574,755

9,919,913
377,497
2,587,367
12,884,777
69,149
766,410
4,212,417
276,662
18,209,415
8,048,469
173,743
769,823
3,373,305
30,574,755

$

$

715,811

12,457
703,354
34,000
658,480
896,191
431,643
139,384
292,259

3,694

288,565

4.22
4.21

$

$
$

175

0.24%
2.57%

5.66%
1.61%
3.05%

1.94%
3.73%
1.95%
2.05%
5.54%
3.93%
3.81%

3.87%
2.95%

0.10%
0.12%
1.53%
0.40%
0.07%
0.06%
0.35%
2.50%
0.41%

2.54%

2.68%

0.27% $ 1,127,664
120,415
2.49%

$

5.48%
1.55%
3.04%

233,105
422,507
655,612

9,546,366
1.97%
92,438
4.25%
9,638,804
1.99%
183,206
2.26%
127,161
5.88%
3.59%
259,809
3.58% 13,406,118
(189,574)
3.63% 13,216,544
2.84% 25,329,215
88,784
2,580,859
$ 27,998,858

0.09% $ 9,737,795
345,183
0.10%
1.35%
2,644,847
0.34% 12,727,825
494,220
0.09%
928,767
0.04%
1,928,742
0.33%
1.84%
347,892
0.35% 16,427,446
7,687,333
136,360
536,958
3,210,761
$ 27,998,858

2.49%

2.60%

2,749
2,520

13,183
6,785
19,968

182,923
3,321
186,244
3,611
7,040
10,143
510,916

510,916
743,191

$

9,757
401
40,525
50,683
341
583
6,748
8,690
67,045

$

676,146

10,952
665,194
—
621,958
847,522
439,630
144,151
295,479

3,044

$

292,435

$
$

4.23
4.22

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Quarterly Financial Summary – Unaudited
Consolidated Daily Average Balances, Average Yields and Rates

(In Thousands, Except Per Share Data)

Three Months Ended

Average
Balance

December 31, 2016
Revenue/
Expense

Yield/
Rate

Average
Balance

September 30, 2016
Revenue/
Expense

Yield/
Rate

Assets

Interest-bearing cash and cash equivalents
Trading securities
Investment securities

$

2,032,785
476,498

$

Taxable
Tax-exempt

Total investment securities
Available for sale securities

Taxable
Tax-exempt

Total available for sale securities
Fair value option securities
Restricted equity securities
Residential mortgage loans held for sale
Loans
Allowance for loan losses

Loans, net of allowance
Total earning assets

Receivable on unsettled securities sales
Cash and other assets
Total assets
Liabilities and equity

Interest-bearing deposits:

Transaction
Savings
Time

Total interest-bearing deposits
Funds purchased
Repurchase agreements
Other borrowings
Subordinated debentures

Total interest-bearing liabilities
Non-interest bearing demand deposits
Due on unsettled securities purchases
Other liabilities
Total equity

Total liabilities and equity
Tax-equivalent Net Interest Revenue
Tax-equivalent Net Interest Revenue to Earning

Assets

Less tax-equivalent adjustment
Net Interest Revenue
Provision for credit losses
Other operating revenue
Other operating expense
Net income before taxes
Federal and state income taxes
Net income
Net income attributable to non-controlling interests

Net income attributable to BOK Financial Corp.

shareholders

Earnings Per Average Common Share Equivalent:

Net income:
Basic
Diluted

2,800
4,554

3,024
1,854
4,878

42,482
748
43,230
541
4,554
2,835
156,734

156,734
220,126

3,912
91
6,140
10,143
44
34
9,315
2,003
21,539

224,376
318,493
542,869

8,706,449
60,106
8,766,555
210,733
334,114
345,066
16,723,588
(246,977)
16,476,611
29,185,231
33,813
3,742,032
$ 32,961,076

$

9,980,132
421,654
2,177,035
12,578,821
62,004
560,891
6,072,150
144,635
19,418,501
9,124,595
77,575
1,004,212
3,336,193
$ 32,961,076

$

$

198,587

4,389
194,198
—
143,754
265,547
72,405
22,496
49,909
(117)

50,026

0.76
0.76

$

$
$

0.51%
2.71%

5.34%
2.26%
3.51%

1.99%
5.47%
2.01%
1.70%
5.37%
3.28%
3.63%

3.69%
2.93%

0.14%
0.09%
1.14%
0.32%
0.19%
0.04%
0.57%
3.84%
0.44%

2.49%

2.64%

2,651
3,157

3,000
1,851
4,851

42,513
867
43,380
1,531
4,510
3,615
150,077

150,077
213,772

3,417
100
6,295
9,812
33
53
9,105
2,468
21,471

0.55% $
3.91%

2,047,991
366,545

$

5.39%
2.33%
3.60%

224,518
328,074
552,592

1.98%
8,795,869
5.27%
66,721
2.00%
8,862,590
0.99%
266,998
5.45%
335,812
3.31%
445,930
3.67% 16,447,750
(247,901)
3.72% 16,199,849
2.98% 29,078,307
259,906
3,308,260
$ 32,646,473

0.16% $
9,650,618
0.09%
420,009
1.12%
2,197,350
0.32% 12,267,977
0.28%
68,280
0.02%
522,822
0.61%
6,342,369
5.51%
255,890
0.44% 19,457,338
8,497,037
200,574
1,099,858
3,391,666
$ 32,646,473

2.54%

2.69%

$

$

192,301

4,455
187,846
10,000
187,310
258,088
107,068
31,956
75,112
835

74,277

1.13
1.13

$

$
$

Yield calculations are shown on a tax equivalent at the statutory federal and state rates for the periods presented.The yield calculations exclude security trades 
that have been recorded on trade date with no corresponding interest income and the unrealized gains and losses. The yield calculation also include average 
loan balances for which the accrual of interest has been discontinued and are net of unearned income. Yield/rate calculations are generally based on the 
conventions that determine how interest income and expense is accrued

176

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Quarterly Financial Summary – Unaudited (continued)
Consolidated Daily Average Balances, Average Yields and Rates

Average Balance

June 30, 2016
Revenue /
Expense

Yield /
Rate

Three Months Ended
Mar. 31, 2016
Revenue /
Expense

Average Balance

December 31, 2015

Yield /
Rate

Average Balance

Revenue /
Expense

Yield /
Rate

0.51% $
1.89%

2,052,840
188,100

$

0.53% $
2.47%

1,995,945
150,402

$

2,569
775

3,069
1,878
4,947

43,345
862
44,207
2,062
3,863
3,508
144,708

144,708
206,639

3,260
102
6,635
9,997
33
72
8,675
878
19,655

$

2,022,028
237,808

$

227,103
335,288
562,391

8,819,135
70,977
8,890,112
368,434
319,136
401,114
16,263,132
(245,448)
16,017,684
28,818,707
49,568
3,117,767
31,986,042

9,590,855
417,122
2,297,621
12,305,598
70,682
611,264
6,076,028
232,795
19,296,367
8,162,134
93,812
1,089,483
3,344,246
31,986,042

$

$

$

$

$

186,984

4,372
182,612
20,000
185,542
251,385
96,769
30,497
66,272
471
65,801

1.00
1.00

$

  $
  $

229,817
357,648
587,465

8,878,478
72,958
8,951,435
450,478
294,529
289,743
15,991,993
(234,116)
15,757,877
28,572,467
115,101
2,820,903
31,508,471

9,756,843
397,479
2,366,543
12,520,865
112,211
662,640
5,583,917
226,368
19,106,001
8,105,756
158,050
813,427
3,325,237
31,508,471

$

5.41%
2.25%
3.52%

2.01%
5.06%
2.04%
2.19%
4.84%
3.53%
3.58%

3.63%
2.91%

$

0.14% $
0.10%
1.16%
0.33%
0.19%
0.05%
0.57%
1.52%
0.41%

$

2.50%

2.63%

2,706
727

3,175
1,984
5,159

44,932
876
45,808
2,589
4,311
2,700
142,181

142,181
206,181

3,317
93
7,132
10,542
76
89
7,807
710
19,224

$

186,957

4,385
182,572
35,000
157,414
242,570
62,416
21,428
40,988
(1,576)
42,564

0.64
0.64

$

$
$

177

0.29%
2.86%

5.41%
1.53%
3.03%

2.02%
4.22%
2.04%
2.32%
5.95%
3.85%
3.55%

3.60%
2.86%

0.09%
0.09%
1.26%
0.32%
0.11%
0.04%
0.38%
1.13%
0.34%

2.52%

2.64%

232,566
369,803
602,369

8,894,019
77,071
8,971,090
435,449
262,461
310,425
15,586,998
(207,156)
15,379,842
28,107,983
62,228
2,909,965
31,080,176

9,527,491
382,284
2,482,714
12,392,489
73,220
623,921
4,957,175
226,332
18,273,137
8,312,961
248,811
884,652
3,360,615
31,080,176

$

5.53%
2.22%
3.51%

2.06%
4.95%
2.08%
2.38%
5.85%
3.75%
3.57%

3.63%
2.92%

$

0.14% $
0.09%
1.21%
0.34%
0.27%
0.05%
0.56%
1.26%
0.40%

$

2.52%

2.65%

1,466
840

3,144
1,413
4,557

43,649
786
44,435
2,461
3,905
2,968
139,372

139,372
200,004

2,098
89
7,881
10,068
21
68
4,720
644
15,521

$

184,483

3,222
181,261
22,500
158,983
230,426
87,318
26,242
61,076
1,475
59,601

0.89
0.89

$

$
$

 
 
 
 
 
 
 
 
 
 
ITEM 9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL 
DISCLOSURE

None.

ITEM 9A.  CONTROLS AND PROCEDURES

As of the end of the period covered by this report and pursuant to Rule 13a-15 of the Securities Exchange Act of 1934 (the 
“Exchange Act”), the Company's management, including the Chief Executive Officer and Chief Financial Officer, conducted an 
evaluation of the effectiveness and design of the Company's disclosure controls and procedures (as that term is defined in Rules 
13a-15(e) and 15d-15(e) of the Exchange Act). Based upon that evaluation, the Company's Chief Executive Officer and Chief 
Financial Officer concluded, as of the end of the period covered by this report, that the Company's disclosure controls and 
procedures were effective in recording, processing, summarizing and reporting information required to be disclosed by the 
Company, within the time periods specified in the Securities and Exchange Commission's rules and forms.

In addition and as of the end of the period covered by this report, there have been no changes in internal control over financial 
reporting (as defined in Rule 13a-15(f) and 15d-15(f), as amended, of the Exchange Act) during the Company's fourth fiscal 
quarter that have materially affected, or are reasonably likely to materially affect, the internal control over financial reporting.

Management's Report on Internal Control over Financial Reporting appears within Item 8, “Financial Statements and 
Supplementary Data.” The independent registered public accounting firm, Ernst & Young LLP, has audited the financial 
statements included in Item 8 and has issued an audit report on the Company's internal control over financial reporting, which 
appears therein.

ITEM 9B.  OTHER INFORMATION

None.

PART III

ITEM 10.  DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

The information set forth under the headings “Election of Directors,” “Executive Officers, “Insider Reporting,” “Director 
Nominations,” and “Report of the Audit Committee” in BOK Financial's 2017 Annual Proxy Statement is incorporated herein 
by reference.

The Company has a Code of Ethics which is applicable to all Directors, officers and employees of the Company, including the 
Chief Executive Officer and the Chief Financial Officer, the principal executive officer and principal financial and accounting 
officer, respectively. A copy of the Code of Ethics will be provided without charge to any person who requests it by writing to 
the Company's headquarters at Bank of Oklahoma Tower, P.O. Box 2300, Tulsa, Oklahoma 74192 or telephoning the Chief 
Risk Officer at (918) 588-6000. The Company will also make available amendments to or waivers from its Code of Ethics 
applicable to Directors or executive officers, including the Chief Executive Officer and the Chief Financial Officer, in 
accordance with all applicable laws and regulations.

There are no material changes to the procedures by which security holders may recommend nominees to the Company's board 
of directors since the Company's 2016 Annual Proxy Statement to Shareholders.

ITEM 11.  EXECUTIVE COMPENSATION

The information set forth under the heading “Compensation Discussion and Analysis,” “Compensation Committee Interlocks 
and Insider Participation, “Compensation Committee Report,” “Executive Compensation Tables,” and “Director 
Compensation” in BOK Financial's 2017 Annual Proxy Statement is incorporated herein by reference.

178

 
 
ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND 
RELATED STOCKHOLDER MATTERS

The information set forth under the headings “Security Ownership of Certain Beneficial Owners and Management” and 
“Election of Directors” in BOK Financial's 2017 Annual Proxy Statement is incorporated herein by reference.

ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

Information regarding related parties is set forth in Note 13 of the Company's Notes to Consolidated Financial Statements, 
which appears elsewhere herein. Additionally, the information set forth under the headings “Certain Transactions,” “Director 
Independence” and “Related Party Transaction Review and Approval Process” in BOK Financial's 2017 Annual Proxy 
Statement is incorporated herein by reference.

ITEM 14.  PRINCIPAL ACCOUNTANT FEES AND SERVICES

The information set forth under the heading “Principal Accountant Fees and Services” in BOK Financial's 2017 Annual Proxy 
Statement is incorporated herein by reference.

PART IV

ITEM 15.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES

(a) (1)  Financial Statements

The following financial statements of BOK Financial Corporation are filed as part of this Form 10-K in Item 8:

Consolidated Statements of Earnings for the years ended December 31, 2016, 2015 and 2014 
Consolidated Statements of Comprehensive Income for the years ended December 31, 2016, 2015 and 2014
Consolidated Balance Sheets as of December 31, 2016 and 2015
Consolidated Statements of Cash Flows for the years ended December 31, 2016, 2015 and 2014 
Consolidated Statements of Changes in Equity for the years ended December 31, 2016, 2015 and 2014 
Notes to Consolidated Financial Statements
Annual Financial Summary - Unaudited
Quarterly Financial Summary - Unaudited
Reports of Independent Registered Public Accounting Firm

(a) (2)  Financial Statement Schedules

The schedules to the consolidated financial statements required by Regulation S-X are not required under the related 
instructions or are inapplicable and are therefore omitted.

179

(a) (3)  Exhibits

Exhibit
Number

Description of Exhibit

3.0

3.1

3.1(a)

4.0

4.2

4.3

10.0

10.1

10.2

10.3

10.4

10.4.2

10.4.2 (a)

10.4.2 (b)

10.4.2 (c)

10.4.7

10.4.7 (a)

10.4.7 (b)

10.4.8

The Articles of Incorporation of BOK Financial, incorporated by reference to (i) Amended and Restated
Certificate of Incorporation of BOK Financial filed with the Oklahoma Secretary of State on May 28, 1991,
filed as Exhibit 3.0 to S-1 Registration Statement No. 33-90450, and (ii) Amendment attached as Exhibit A to
Information Statement and Prospectus Supplement filed November 20, 1991.

Bylaws of BOK Financial, incorporated by reference to Exhibit 3.1 of S-1 Registration Statement No.
33-90450.

Bylaws of BOK Financial, as amended and restated as of October 30, 2007, incorporated by reference to
Exhibit 3.1 of Form 8-K filed on November 5, 2007.

The rights of the holders of the Common Stock and Preferred Stock of BOK Financial are set forth in its
Certificate of Incorporation.

Subordinated Notes Indenture, dated as of June 27, 2016, between the Company and U.S. Bank National
Association, as trustee (incorporated by reference to Exhibit 4.1 to the Company's filing on Form 8-K filed
June 27, 2016).

Form of 5.375% Subordinated Notes due 2056 Global Security (incorporated by reference to Exhibit 4.2 to the
Company's Registration Statement on Form 8-A filed on June 24, 2016).

Purchase and Sale Agreement dated October 25, 1990, among BOK Financial, Kaiser, and the FDIC,
incorporated by reference to Exhibit 2.0 of S-1 Registration Statement No. 33-90450.

Amendment to Purchase and Sale Agreement effective March 29, 1991, among BOK Financial, Kaiser, and the
FDIC, incorporated by reference to Exhibit 2.2 of S-1 Registration Statement No. 33-90450.

Letter agreement dated April 12, 1991, among BOK Financial, Kaiser, and the FDIC, incorporated by
reference to Exhibit 2.3 of S-1 Registration Statement No. 33-90450.

Second Amendment to Purchase and Sale Agreement effective April 15, 1991, among BOK Financial, Kaiser,
and the FDIC, incorporated by reference to Exhibit 2.4 of S-1 Registration Statement No. 33-90450.

Employment and Compensation Agreements.

Amended and Restated Deferred Compensation Agreement (Amended as of December 1, 2003) between
Steven G. Bradshaw and BOK Financial Corporation, incorporated by reference to Exhibit 10.4.2 of Form 10-
K for the fiscal year ended December 31, 2003.

409A Deferred Compensation Agreement between Steven G. Bradshaw and BOK Financial Corporation dated
December 31, 2004, incorporated by reference to Exhibit 10.4.2 (a) of Form 8-K filed on January 5, 2005.

Employment Agreement between BOK Financial and Steven G. Bradshaw dated September 29, 2003,
incorporated by reference to Exhibit 10.4.2 (b) of Form 10-K for the fiscal year ended December 31, 2004.

Amended and Restated Employment Agreement (amended as of June 30, 2013) between BOK Financial and
Steven G. Bradshaw, incorporated by reference to Exhibit 99.A of Form 8-K filed August 20, 2013.

409A Deferred Compensation Agreement between Steven E. Nell and BOK Financial Corporation dated
December 31, 2004, incorporated by reference to Exhibit 10.4.7 of Form 8-K filed on January 5, 2005.

Amended and Restated Deferred Compensation Agreement (Amended as of December 1, 2003) between
Steven E. Nell and BOK Financial Corporation, incorporated by reference to Exhibit 10.4.7 (a) of Form 10-K
for the fiscal year ended December 31, 2004.

Amended and Restated Employment Agreement (amended June 15, 2013) between BOK Financial and Steven
Nell incorporated by reference to Exhibit 99.B of Form 8-K filed September 4, 2013.

Employment Agreement dated August 1, 2005 between BOK Financial Corporation and Donald T. Parker,
incorporated by reference to Exhibit 99 (a) of Form 8-K filed on February 1, 2006.

180

 
 
Exhibit
Number
10.4.8 (a)

10.4.9

10.4.9 (a)

10.4.9 (b)

10.4.10

Description of Exhibit
Amended and Restated Employment Agreement Dated June 15, 2013 between BOK Financial and Donald T.
Parker, incorporated by reference to Exhibit 10.4.8(a) of Form 10-K filed on February 27, 2015.

Employment Agreement dated April 4, 2008 between Bank of Texas, NA, and Norman P. Bagwell,
incorporated by reference to Exhibit 10.4.9 of Form 10-K filed on February 27, 2013.

First Amendment of Employment Agreement dated June 30, 2011 between Bank of Texas, a division of BOKF,
NA, and Norman P. Bagwell, incorporated by reference to Exhibit 10.4.9 (a) of Form 10-K filed on February
27, 2013.

Amended and Restated Employment Agreement (amended as of June 15, 2013) between BOK Financial and
Norman Bagwell, incorporated by reference to Exhibit 99.A of Form 8-K filed September 4, 2013.

Amended and Restated Employment Agreement (amended as of June 15, 2013) between BOK Financial and
Stacy C. Kymes, filed herewith.

10.6

10.7.7

10.7.8

10.7.9

10.7.10

10.7.11

10.7.12

10.7.13

10.7.14

10.7.16

10.8

10.9

21

23

31.1

31.2

Capitalization and Stock Purchase Agreement dated May 20, 1991, between BOK Financial and Kaiser,
incorporated by reference to Exhibit 10.6 of S-1 Registration Statement No. 33-90450.

BOK Financial Corporation 2001 Stock Option Plan, incorporated by reference to Exhibit 4.0 of S-8
Registration Statement No. 333-62578.

BOK Financial Corporation Directors' Stock Compensation Plan, incorporated by reference to Exhibit 4.0 of
S-8 Registration Statement No. 33-79836.

Bank of Oklahoma Thrift Plan (Amended and Restated Effective as of January 1, 1995), incorporated by
reference to Exhibit 10.7.6 of Form 10-K for the year ended December 31, 1994.

Trust Agreement for the Bank of Oklahoma Thrift Plan (December 30, 1994), incorporated by reference to
Exhibit 10.7.7 of Form 10-K for the year ended December 31, 1994.

BOK Financial Corporation 2003 Stock Option Plan, incorporated by reference to Exhibit 4.0 of S-8
Registration Statement No. 333-106531.

BOK Financial Corporation 2003 Executive Incentive Plan, incorporated by reference to Exhibit 4.0 of S-8
Registration Statement No. 333-106530.

10b5-1 Repurchase Plan between BOK Financial Corporation and BOSC, Inc. dated May 27, 2008,
incorporated by reference to Exhibit 10.1 of Form 8-K filed May 27, 2008.

BOK Financial Corporation 2003 Executive Incentive Plan, as amended and restated, for the Chief Executive
Officer and for Direct Reports to the Chief Executive Officer, incorporated by reference to the Schedule 14 A
Definitive Proxy Statement filed on March 15, 2011.

BOK Financial Corporation 2009 Omnibus Incentive Plan, Amended and Restated effective April 30, 2013,
incorporated by reference to the Schedule 14A Definitive Proxy Statement filed on March 20, 2013.

Lease Agreement between One Williams Center Co. and National Bank of Tulsa (predecessor to BOk) dated
June 18, 1974, incorporated by reference to Exhibit 10.9 of S-1 Registration Statement No. 33-90450.

Lease Agreement between Security Capital Real Estate Fund and BOk dated January 1, 1988, incorporated by
reference to Exhibit 10.10 of S-1 Registration Statement No. 33-90450.

Subsidiaries of BOK Financial, filed herewith.

Consent of independent registered public accounting firm - Ernst & Young LLP, filed herewith.

Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, filed
herewith.

Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, filed
herewith.

181

Exhibit
Number

32

99

101

Certification of Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as
Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, filed herewith.

Description of Exhibit

Additional Exhibits.

Interactive data files pursuant to Rule 405 of Regulation S-T: (i) the Consolidated Balance Sheets, (ii) the
Consolidated Statements of Earnings, (iii) the Consolidated Statements of Changes in Equity, (iv) the
Consolidated Statement of Cash Flows and (v) the Notes to the Consolidated Financial Statements, filed
herewith.

(b) 

Exhibits

See Item 15 (a) (3) above.

(c) 

Financial Statement Schedules

See Item 15 (a) (2) above.

182

 
 
SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this 
report to be signed on its behalf by the undersigned, thereunto duly authorized.

BOK FINANCIAL CORPORATION

DATE:    February 28, 2017                                                        BY:  /s/ George B. Kaiser                                                              

George B. Kaiser 
Chairman of the Board of Directors

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below on February 28, 2017, 
by the following persons on behalf of the registrant and in the capacities indicated.

OFFICERS

/s/ George B. Kaiser
George B. Kaiser
Chairman of the Board of Directors

/s/ Steven G. Bradshaw
Steven G. Bradshaw
Director, President and Chief Executive Officer

/s/ Steven E. Nell
Steven E. Nell
Executive Vice President and
Chief Financial Officer

/s/ John C. Morrow
John C. Morrow
Senior Vice President and
Chief Accounting Officer

183

 
 
 
 
 
 
 
 
 
Alan S. Armstrong

C. Frederick Ball, Jr.

/s/ Jack E. Finley
Jack E. Finley

/s/ Chester E. Cadieux, III
Chester E. Cadieux, III 

/s/ Joseph W. Craft, III
Joseph W. Craft, III

/s/ John W. Gibson
John W. Gibson 

/s/ David F. Griffin
David F. Griffin 

DIRECTORS

/s/ Kimberley D. Henry
Kimberley D. Henry

/s/ E. Carey Joullian, IV
E. Carey Joullian, IV

Stanley A. Lybarger

Steven J. Malcolm

/s/ Emmet C. Richards
Emmet C. Richards

/s/ Robert J. LaFortune
Robert J. LaFortune

Michael C. Turpen

V. Burns Hargis

R.A. Walker

Douglas D. Hawthorne

Peter C. Boylan III

184

 
 
 
 
 
 
 
Exhibit 21

BOK FINANCIAL CORPORATION

SUBSIDIARIES OF THE REGISTRANT

Banking Subsidiaries

BOKF, National Association (1)

Missouri Bank and Trust Company of Kansas City (2)

Other subsidiaries of BOK Financial Corporation

BOK Capital Service Corporation 

BOKC Real Estate Corporation (8)

BOKF Capital Corporation 

BOKF-CC (Aimbridge), LLC 

BOKF-CC (FSE), LLC 

BOKF-CC (Collision Works), LLC 

BOKF-CS (Global Holdings), LLC 

BOKF-CC (Heartland), LLC 

BOKF-CS (Newco Valves), LLC 

BOKF-CC (O2 Concepts), LLC 

BOKF-CC (QAA), LLC (4)

BOKF Equity, LLC 

BOKF Private Equity Limited Partnership 

BOKF Private Equity Limited Partnership II 

BOK Financial Securities, Inc.

Cavanal Hill Distributors, Inc.

Heartland Food Products, LLC (8)

HFP II, LLC 

Lakeland Operating Company, LLC (7)

The Milestone Group, Inc. (6)

Quality Aircraft Accessories Holding Corporation (4)

Quality Aircraft Accessories, Inc. (4)

Subsidiaries of BOKF, National Association (1)

4525-4527 Fairway, LLC 

Affiliated BancServices, Inc. 

Affiliated Financial Holding Co. 

Affiliated Financial Insurance Agency, Inc. 

BancOklahoma Agri-Service Corporation 

BancOklahoma Mortgage Corporation 

BOK Delaware, Inc. (4)

BOK Financial Asset Management, Inc. (3)

BOK Financial Equipment Finance, Inc. 

BOK Funding Trust (4)

BOKFCDF Fund I, LLC 

BOKF Community Development Fund, LLC 

BOKF Community Development Corporation 

BOKF Petro Holding, LLC 

BOKF Special Assets I, LLC 

BOSC Agency, Inc. (Oklahoma)

BOSC Agency, Inc. (New Mexico) (5)

BOSC Agency, Inc.. (Texas) (3)

Calicotte Ranch HOA, LLC 

Cavanal Hill Investment Management, Inc. 

Cottonwood Valley Ventures, Inc.

CVV Management, Inc. 

CVV Partnership, an Oklahoma General Partnership

Oklahoma New Markets Fund I, LLC 

Oklahoma New Markets Fund II, LLC 

Oklahoma New Markets Fund III, LLC 

Oklahoma New Markets Fund IV, LLC 

Pacesetter Leasing Company 

Subsidiaries of Missouri Bank and Trust Company of Kansas City (2)

Ottawa Land Partners, LLC 

All Subsidiaries listed above were incorporated in Oklahoma, except as noted.

(1)  Chartered by the United States Government
(2)  Chartered by the State of Missouri
(3)  Incorporated in Texas
(4)  Incorporated in Delaware
(5)  Incorporated in New Mexico
(6)  Incorporated in Colorado
(7)  Incorporated in California
(8)  Incorporated in Kansas

Exhibit 23

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

•  Registration Statement (Form S-8, No. 33-44121) pertaining to the Reoffer Prospectus of the Bank of Oklahoma Master 

Thrift Plan and Trust Agreement as amended October 6, 2008.

•  Registration Statement (Form S-8, No. 333-40280) pertaining to the Reoffer Prospectus of the BOK Financial Corporation 

Master Thrift Plan for Hourly Employees as amended October 6, 2008.

•  Registration Statement (Form S-8, No. 33-79836) pertaining to the Reoffer Prospectus of the BOK Financial Corporation 

Directors' Stock Compensation Plan.

•  Registration Statement (Form S-8, No. 333-32649) pertaining to the Reoffer Prospectus of the BOK Financial Corporation 

1997 Stock Option Plan.

•  Registration Statement (Form S-8, No. 333-93957) pertaining to the Reoffer Prospectus of the BOK Financial Corporation 

2000 Stock Option Plan.

•  Registration Statement (Form S-8, No. 333-62578) pertaining to the Reoffer Prospectus of the BOK Financial Corporation 

2001 Stock Option Plan.

•  Registration  Statement  (Form  S-8,  No.  333-106530)  pertaining  to  the  Reoffer  Prospectus  of  the  BOK  Financial 

Corporation 2003 Executive Incentive Plan.

•  Registration  Statement  (Form  S-8,  No.  333-106531)  pertaining  to  the  Reoffer  Prospectus  of  the  BOK  Financial 

Corporation 2003 Stock Option Plan.

•  Registration  Statement  (Form  S-8,  No.  333-135224)  pertaining  to  the  Reoffer  Prospectus  of  the  BOK  Financial 

Corporation 2003 Stock Option Plan.

•  Registration  Statement  (Form  S-8,  No.  333-158846)  pertaining  to  the  Reoffer  Prospectus  of  the  BOK  Financial 

Corporation 2009 Omnibus Incentive Plan.

•  Registration  Statement  (Form  S-3,  (No.  333-212120)  pertaining  to  the  Reoffer  Prospectus  of  the  BOK  Financial 

Corporation 2016 Subordinated Note Issuance.

of our reports dated February 28, 2017, with respect to the consolidated financial statements of BOK Financial Corporation and 
the effectiveness of internal control over financial reporting of BOK Financial Corporation included in this Annual Report (10-
K) of BOK Financial Corporation for the year ended December 31, 2016.

/s/ Ernst & Young LLP
Tulsa, Oklahoma

February 28, 2017 

Exhibit 31.1

CERTIFICATION PURSUANT TO

SECTION 302

OF THE SARBANES-OXLEY ACT OF 2002

FOR THE CHIEF EXECUTIVE OFFICER

I, Steven G. Bradshaw, President and Chief Executive Officer of BOK Financial Corporation (“BOK Financial”), certify that:

1. 

I have reviewed this Annual Report on Form 10-K of BOK Financial;

2.  Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact 

necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading 
with respect to the period covered by this report;

3.  Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all 
material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods 
presented in this report;

4.  The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and 
procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as 
defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.  Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed 
under our supervision, to ensure that material information relating to the registrant, including its consolidated 
subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is 
being prepared;

b.  Designed such internal control over financial reporting, or caused such internal control over financial reporting to be 

designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the 
preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.  Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our 

conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this 
report based on such evaluation; and

d.  Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the 
registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has 
materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; 
and

5.  The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over 
financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons 
performing the equivalent functions):

a.  All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting 

which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial 
information; and

b.  Any fraud, whether or not material, that involves management or other employees who have a significant role in the 

registrant's internal control over financial reporting.

Date:  February 28, 2017 

/s/ Steven G. Bradshaw                                                                          
Steven G. Bradshaw
President
Chief Executive Officer
BOK Financial Corporation

 
 
 
 
 
 
 
 
 
 
Exhibit 31.2

CERTIFICATION PURSUANT TO

SECTION 302

OF THE SARBANES-OXLEY ACT OF 2002

FOR THE CHIEF FINANCIAL OFFICER

I, Steven E. Nell, Chief Financial Officer of BOK Financial Corporation (“BOK Financial”), certify that:

1. 

I have reviewed this Annual Report on Form 10-K of BOK Financial;

2.  Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact 

necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading 
with respect to the period covered by this report;

3.  Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all 

material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented 
in this report;

4.  Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all 

material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented 
in this report;

5.  The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and 

procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined 
in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.  Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under 

our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made 
known to us by others within those entities, particularly during the period in which this report is being prepared;

b.  Designed such internal control over financial reporting, or caused such internal control over financial reporting to be 

designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the 
preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. 

d. 

 Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions 
about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on 
such evaluation; and

 Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the 
registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially 
affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

6.  The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over 

financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing 
the equivalent functions):

a.  All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting 

which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial 
information; and

b. 

 Any fraud, whether or not material, that involves management or other employees who have a significant role in the 
registrant's internal control over financial reporting.

Date:  February 28, 2017 

/s/ Steven E. Nell                
Steven E. Nell
Executive Vice President and Chief Financial Officer
BOK Financial Corporation

 
 
 
 
  
 
 
 
 
 
 
                                                                            
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 Annual Report of BOK Financial Corporation (“BOK Financial”) on Form 10-K for the fiscal year 
ending December 31, 2016 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.

February 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

 
 
 
 
 
 
 
 
 
 
 
                                                                           
 
                                                                          
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RETAIL AND COMMERCIAL BANKING:

WEALTH MANAGEMENT:

TRANSACTION AND 
PAYMENT PROCESSING:

MORTGAGE BANKING:

CORPORATE HEADQUARTERS:

Bank of Oklahoma Tower
P.O. Box 2300
Tulsa, Oklahoma 74192
918.588.6000

GE-BA-7008