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BOK Financial

bokf · NASDAQ Financial Services
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Ticker bokf
Exchange NASDAQ
Sector Financial Services
Industry Banks - Regional
Employees 1001-5000
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FY2010 Annual Report · BOK Financial
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BOK Financial Corporation  |  2010 Annual Report

 Record Earnings Despite A Stressed Economy

Highlights of 2010 included:

2010 was clearly another challenging year for the banking 
industry. In fact, 157 banks failed in 2010 – more than any 
other time in the last 18 years since the savings and loan 
crisis. Unemployment remained elevated and foreclosure 
rates soared. Though economic recovery for the nation as 
a whole was underway, many consumers and businesses 
were cautious and continued to reduce debt throughout 
the year. As a result, loan growth remained elusive while 
regulatory changes simultaneously impacted revenue and 
increased expenses. 

Despite this historically challenging backdrop, BOK Financial 
continued to produce strong results. 

We  were  pleased  to  report  record  earnings  in  our 
company’s  centennial  year.  BOK  Financial  reported  net 
income for 2010 of $247 million or $3.61 per diluted share, 
a 23% increase over 2009 and a 13% increase over our 
previous  record  set  in  2007  before  the  financial  crisis.  
Growth in fee income and reduced credit costs fueled the 
increase  in  earnings.  This  strong  performance  returned 
the company to its historical growth trend. Over the last 
decade, BOK Financial has consistently outperformed the 
industry, peers and major indices. This stable, consistent 
performance  became  even  more  distinctive  during  the 
downturn.

 • Fees  and  commissions  increased  $36  million  or  7%, 
bolstered  by  solid  growth  in  brokerage  and  trading 
revenue and mortgage banking revenue

 • Due to improving credit trends in the loan portfolio, we 
reduced our provision for loan losses by nearly 50%

 • Nonaccrual loans were down $109 million or 32%

 • Total deposits increased $1.7 billion or 11%, supported 
by double-digit growth in demand and interest bearing 
transaction accounts as customers were attracted to our 
financial strength and stability

 • Shareholders’ equity increased over $315 million to $2.5 

billion, without any dilutive equity issuance

 • We increased our quarterly dividend to $0.25 per share 

or $1.00 per share annualized  

 Strong Performance Relative To Peers

Many  of  our  peers  are  relieved  to  be  returning  to 
profitability,  while  some  continue  to  struggle  with 
credit  quality.  In  contrast,  BOK  Financial  has  remained 
in  a  position  of  strength  throughout  the  cycle.  We 

s
n
o

i
l
l
i

M
n
I

Net Income and EPS

EPS CAGR 13%

$300

$250

$200

$150

$100

$50

$0

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

Source: SNL Financial
EPS have been restated for stock dividends and for a 2-for-1 split

Net Income

EPS

$4.00

$3.50

$3.00

$2.50

$2.00

$1.50

$1.00

$.50

$.00

 
define our peers as 20 US based publicly traded banks, 
10 immediately larger and 10 immediately smaller based 
on total assets at December 31, 2010. Of these 20 banks, 
13 have not yet returned to their pre-cycle earnings levels 
and four failed to generate a profit in the last two years. In 
addition to remaining profitable and outperforming our peer 
group  through  the  cycle,  BOK  Financial  was  the  largest 
commercial  bank  to  decline  participation  in  the  TARP 
Capital Purchase Program.

 A Solid Strategy For All Economic Cycles

We continue to attribute our success to our core strategies, 
which don’t require adjustment when economic conditions 
change.  A  key  element  of  our  strategy  is  our  diverse 
revenue sources. Though we are a traditional bank, we do 
not depend solely on loan growth to generate earnings.  
Our fee based lines of business each perform at different 
levels depending on economic conditions, but combined 
they consistently provide more than 40% of total revenue. 

Another  major  element  of  our  strategy  relates  to  our 
regional  presence.  When  expanding  to  new  markets 
outside  Oklahoma,  we  deliberately  chose  fast  growing 
metropolitan  areas  with  high  quality  demographics.  We 
operate our banks through local management teams who 
understand their communities and know their clients.  

Last, we staff our organization with the best professionals 
in the industry and equip them with the tools to customize 
solutions  to  meet  clients’  individual  needs.  Recruiting 
top  talent  is  a  perennial  area  of  focus,  so  while  other 
banks were struggling and reducing their labor force, we 
accelerated our efforts to attract the finest talent available 
throughout  each  line  of  business.  The  result  is  a  rare 
combination of nationally competitive products delivered 
by talented employees who are deeply committed to our 
clients’ long term success.

These  same  guiding  principles  have  propelled  our 
performance, both through years of economic expansion 
and recession. In fact, our 2010 success is the result of 
the decisions we made in the past.  We didn’t overreach. 
We’ve remained committed to our region, avoided exotic 
investments  and  underweighted  riskier  loan  types  and 
business segments.  

Our  management  team’s  interests  are  aligned  with  our 
shareholders’ and we are all committed to the long term 
success of our company. Our decision making framework 
is based on long term economic analysis which leads us to 
behave differently in some ways than many other banks. 
For a recent example, our approach to problem loans is to 
maximize return rather than sell these distressed assets to 
a private equity buyer at heavily discounted prices. While 
this approach leads to an elevated level of nonperforming 
assets and may modestly distort our nonperforming credit 
optics compared to the industry, our overall net charge-off 
levels have remained well below the industry. 

By  executing  our  consistent  strategy,  we  increased 
shareholders’  equity  over  $315  million  or  14%  in  2010. 
We’ve  built  our  equity  on  retained  earnings,  not  trust 
preferred securities or other hybrid instruments that now 
are  out  of  favor.  We  have  not  diluted  our  shareholders’ 
interest  with  additional  stock  issuances.  We  increased 
our  dividends  during  a  period  when  most  banks  cut  or 
discontinued  their  dividend.  Our  current  capital  level 
appears to be well in excess of the new higher proposed 
capital standards.  While many of our peers are making 
plans to repay TARP funds, we are challenged with the 
more  pleasant  task  of  deploying  excess  capital  to  build 
shareholder value.

 Continued Investments For Future Growth

Rather than scaling back in this stressed economy, we’ve 
continued to invest in our fee based businesses by adding 
talent, products and services. During the first quarter of 
2010,  we  acquired  the  rights  to  service  $4.2  billion  in 
residential mortgage loans from a distressed seller. We 
viewed this unique opportunity as a means to expand our 
origination  platform  in  New  Mexico,  increase  mortgage 
servicing revenue and further develop relationships with 
approximately 34,000 additional mortgage customers. In 
connection  with  this  acquisition,  we  hired  29  mortgage 
professionals, including 22 originators and sales managers. 
We are seeing the results of our investments in this line 
of business. For the first time in the company’s history, 
mortgage  loans  originated  outside  Oklahoma  exceeded 
those originated in our home state.

During  2010,  we  also  added  six  account  managers 
and  new  leadership  to  our  Business  Banking  team  and 
established  a  new  investment  center  in  Milwaukee 
with a team of seasoned investment professionals. Our 
recruiting successes enhanced teams in virtually every line 
of business in every region. 

Last  year  we  introduced  our  first  mobile  banking 
applications.  In  addition  to  an  iPhone  application,  we 
created  one  for  the  iPad  that  is  specifically  designed  to 
leverage its unique capabilities. Our ongoing investments 
in the franchise build shareholder value by strengthening 
the foundation for our future growth.  

We  have  also  identified  a  number  of  investments  in 
technology  that  will  improve  efficiency  and  enhance 
product capabilities. During 2010, we launched a consumer 
delivery project which includes front counter capture and 
a new sales and service platform. New projects for 2011 
include upgrading our lockbox processing and replacing the 
front end system used by our commercial clients. These 
two projects will produce new capabilities that can attract 
additional  clients.  In  addition,  the  lockbox  upgrade  will 
allow us to reduce costs and improve client service. Our 
recent investments in talent and technology should help to 
grow revenue and reduce costs.

 Positioned For Success

This  year  we  commemorated  Bank  of  Oklahoma’s 
centennial  anniversary.  The  bank  was  founded  by  Harry 
Sinclair and other noted oilmen in 1910 to provide a stable 
source  of  funding  to  support  drilling  around  Tulsa.  Over 
time, we’ve evolved from an Oklahoma energy lender to 
a leading regional financial services company. A century 
later, the company carries on several of the traditions of its 
founders, including expertise in energy lending, a focus on 
client service and strong growth dynamics. 

We are proud of our heritage and are optimistic about the 
future, although we clearly recognize we will face many 
challenges in the year ahead, including additional regulatory 
reform and continued weak loan demand. We believe the 

foundation we’ve built will continue to produce exceptional 
results for a number of reasons. We remain in a position 
of financial strength; our profitability, liquidity, capital and 
credit metrics are all solid. Our markets are resilient and 
growing and we continue to increase our market share. 

In anticipation of the financial impact of regulatory reform, 
we completed a bank-wide revenue enhancement initiative. 
We  identified  a  series  of  opportunities  including  new 
products and services, new and revised fees and reduced 
fee waivers. Each line of business identified opportunities 
and  set  reasonable  revenue  targets.  We  anticipate 
implementing these projects throughout the year. We also 
expect to benefit from the continued maturation of our fee 
lines of business in our newer markets. Some fee revenue 
is at risk with impending regulatory reform, but the depth 
of our lines of business provides numerous opportunities 
to  generate  additional  revenue.  Furthermore,  we  are 
confident that, as an industry, financial institutions will find 
ways to prevent a significant reduction in profitability.  

While most of our growth will continue to be organic, we 
continue to seek acquisition opportunities. We expect to 
see continued heightened consolidation activity as directors 
grow  weary  of  the  lengthened  recession  and  increased 
regulatory burdens. We are seeking opportunities to acquire 
quality  banks,  branch  networks  and  fee  businesses  to 
enhance our presence in our existing markets. Some of our 
best years were during periods of market consolidation and 
we are in a position to take advantage of such disruption 
should it occur in our markets.  

We’d like to take this opportunity to recognize our 4,400 
employees for their dedication to our company and our core 
strategies.  Their  commitment  to  our  mission  to  provide 
exceptional financial expertise to our customers has built 
our  strong  customer  base  and  continues  to  win  market 
share from our competitors. We thank our employees, our 
directors and our shareholders for their support. We look 
forward to continuing to provide outstanding service to our 
clients and communities.   

George B. Kaiser
Chairman

Stanley A. Lybarger
President & CEO

BOK Financial Corporation Executive Management

Stanley A. Lybarger
President & Chief Executive Officer 

Norman P. Bagwell
Chairman & CEO
Bank of Texas

Steven G. Bradshaw
Senior Executive Vice President
Consumer Banking and Wealth Management

Charles E. Cotter
Executive Vice President 
Chief Credit Officer

Daniel H. Ellinor
Senior Executive Vice President 
Commercial Banking, Energy and Commercial Real Estate

Steven E. Nell
Executive Vice President
Chief Financial Officer 

Donald T. Parker
Executive Vice President
Chief Information Officer

BOK Financial Corporation Board of Directors

Gregory S. Allen 
CEO 
Maine Street Holdings, Inc.

C. Fred Ball, Jr.
Senior Chairman 
Bank of Texas

Sharon J. Bell 
Managing Partner 
Rogers & Bell

Peter C. Boylan, III 
CEO 
Boylan Partners, LLC

Chester Cadieux, III
Chairman & CEO 
QuikTrip Corporation

Joseph W. Craft, III
President & CEO 
Alliance Resource Partners, L.P.

William E. Durrett 
Senior Chairman 
American Fidelity Corp. 

John W. Gibson
President & CEO 
ONEOK, Inc.

David F. Griffin
President & CEO 
Griffin Communications, L.L.C.

V. Burns Hargis
President 
Oklahoma State University

E. Carey Joullian, IV
Chairman, President  & CEO 
Mustang Fuel Corporation

George B. Kaiser
Chairman 
BOK Financial Corporation and BOKF, NA

Robert J. LaFortune
Personal Investments

Stanley A. Lybarger
President & CEO 
BOK Financial Corporation and BOKF, NA

Steven J. Malcolm
Retired Chairman, President & CEO 
The Williams Companies, Inc.

Emmet C. Richards
Manager 
Core Investment Capital, LLC

As filed with the Securities and Exchange Commission on February 25, 2011 

SECURITIES AND EXCHANGE COMMISSION 

UNITED STATES 

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 fiscal year ended December 31, 2010 

OR 

 (cid:133) 

  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 
P.O. Box 2300 
Tulsa, Oklahoma 
(Address of principal executive offices) 

73-1373454 
(IRS Employer Identification No.) 

74192 
(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  (cid:133) 

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  (cid:133)  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 subject to such filing requirements for the past 90 days.       Yes  ⌧  No  (cid:133) 

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  (cid:133) 

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.   (cid:133)   

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  ⌧             Accelerated filer  (cid:133)   Non-accelerated filer  (cid:133)  Smaller reporting company  (cid:133) 

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    Yes  (cid:133)  No  ⌧ 

The aggregate market value of the registrant’s common stock (“Common Stock”) held by non-affiliates is approximately $1.2 
billion (based on the June 30, 2010 closing price of Common Stock of $47.47 per share).  As of January 31, 2011, there were 
68,274,150 shares of Common Stock outstanding. 

Part III incorporates certain information by reference from the Registrant’s Proxy Statement for the 2011 Annual Meeting of 
Shareholders. 

DOCUMENTS INCORPORATED BY REFERENCE 

 
 
 
 
 
 
  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
Item 

1       
1A 
1B 
2 
3 
4 

5 

6 
7 

7A 
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9 

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9B 

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BOK FINANCIAL CORPORATION 
ANNUAL REPORT ON FORM 10-K 
INDEX 

Part I: 
Business 
Risk Factors 
Unresolved Staff Comments 
Properties 
Legal Proceedings 
Submission of Matters to a Vote of Security Holders 

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 Accountant Fees and Services 

Part IV: 
Exhibits, Financial Statement Schedules 

Signatures 

Chief Executive Officer Section 302 Certification, Exhibit 31.1 
Chief Executive Officer Section 302 Certification, Exhibit 31.2 
Section 906 Certifications, Exhibit 32 

Page 

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5 
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66 

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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 limited 
by the Bank Holding Company Act of 1956 (“BHCA”), as amended by the Financial Services Modernization Act or 
Gramm-Leach-Bliley Act.  BOK Financial offers full service banking in Oklahoma, Texas, New Mexico, Northwest 
Arkansas, Colorado, Arizona, and Kansas/Missouri.   

On October 6, 2010, the Office of the Comptroller of the Currency (“OCC”) approved the affiliated merger of the 
Company’s wholly-owned subsidiary banks, Bank of Texas, N.A., Bank of Albuquerque, N.A., Bank of Arkansas, N.A., 
Colorado State Bank and Trust, N.A., Bank of Arizona, N.A., and Bank of Kansas City, N.A. into Bank of Oklahoma, N.A. 
(“the Banks”). The resulting subsidiary bank is named BOKF, NA.  The Company effected the merger on January 1, 2011.  
The Banks will continue to operate as distinct geographical regions using the trade names of the former charters.  The 
merger will allow us to more efficiently utilize capital of the Banks.  Other subsidiaries of BOK Financial include BOSC, 
Inc., a broker/dealer that engages in retail and institutional securities sales and municipal bond underwriting.  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 quality 
organizations that have demonstrated solid growth in their business lines.  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.  We 
also consider acquisitions of distressed financial institutions in our existing markets when attractive opportunities become 
available. 

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 
and positioning.  Our diversified base of revenue sources is designed to generate returns in a range of economic situations.  
Historically, fees and commissions provide 40 to 45% of our total revenue.  Approximately 42% of our revenue came from 
fees and commission in 2010. 

BOK Financial’s corporate headquarters is located at Bank of Oklahoma Tower, P.O. Box 2300, Tulsa, Oklahoma 74192. 

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.  

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 and all mortgage banking 
activities.  Wealth management provides fiduciary services, brokerage and trading, private bank services and investment 
advisory services in all markets.  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” and within Note 17 
of the Company’s Notes to Consolidated Financial Statements, both of which appear elsewhere herein.   

1 

 
 
 
 
 
 
 
 
 
 
 
 
 
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 December 31, 2010.   

We are the largest financial institution in the state of Oklahoma with 12% of the state’s total deposits.  The Tulsa and 
Oklahoma City areas have 28% and 9% of the market share, 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 and 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 1% in the Houston area.  Bank of Albuquerque has a 
number four market share position with 10% of deposits in the Albuquerque area and competes with two 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 Arizona operates as a community bank with locations in 
Phoenix, Mesa and Scottsdale.  Bank of Arkansas serves Benton and Washington counties in Arkansas, and Bank of Kansas 
City serves 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, 2010, BOK Financial and its subsidiaries employed 4,432 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 protect depositors, the Bank Insurance Fund and the banking system as a whole and not necessarily to protect 
shareholders and creditors.  As detailed below, these regulations may restrict the Company’s ability to diversify, to acquire 
other institutions and to pay dividends on its capital stock.  They also may require the Company to provide financial support 
to its subsidiaries and maintain certain capital balances.   

On July 21, 2010, the Dodd-Frank Wall Street Reform and Consumer Protection Act (“the Dodd-Frank Act”) was signed 
into law, giving federal banking agencies authority to increase the minimum deposit ratio, increase regulatory capital 
requirements, impose additional rules and regulations over consumer financial products and services and limit the amount 
of interchange fee that may be charged in an electronic debit transaction.  In addition, the Dodd-Frank Act makes 
permanent the $250,000 limit for federal deposit insurance and provides unlimited federal deposit insurance until January 1, 
2013 for non-interest bearing demand deposit accounts.  It also repeals prohibitions on payment of interest on demand 
deposits, which could impact how interest is paid on business transaction and other accounts.  We continue to assess the 
potential impact of the complex provisions that the Dodd-Frank Act will have in the coming months or years.  The effect of 
this legislation on fee income and operating expenses could be significant but cannot be accurately quantified at this time.   

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

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.  

The Banks are organized as a national banking association under the National Banking Act, and are 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 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 its functions through national bank examiners who provide the OCC with information  

2   

 
 
 
 
 
 
 
 
 
 
 
 
 
concerning the soundness of a national bank, the quality of management and directors, 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 Gramm-Leach-Bliley Act and Federal Reserve Board interpretations, and therefore 
may engage in a broader range of activities than permitted for bank holding companies and their subsidiaries.  Activities 
that are “financial in nature” include securities underwriting and dealing, insurance underwriting, operating a mortgage 
company, credit card company or factoring 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.  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 have received a rating of at least satisfactory in its most recent examination under the Community 
Reinvestment Act.  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. 

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 Banks and other non-bank subsidiaries are also subject to other federal and state laws and regulations.  For example, 
BOSC, Inc., the Company’s broker/dealer subsidiary that engages in retail and institutional securities sales and municipal 
bond underwriting, is regulated by the Securities and Exchange Commission, the Financial Industry Regulatory Authority 
(FINRA), the Federal Reserve Board, and state securities regulators.  As another example, Bank of Arkansas is subject to 
certain consumer-protection laws incorporated in the Arkansas Constitution, which, among other restrictions, limit the 
maximum interest rate on general loans to five percent above the Federal Reserve Discount Rate and limit the rate on 
consumer loans to the lower of five percent above the discount rate or seventeen percent. 

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.   

The Federal Reserve Board risk-based guidelines define a three-tier capital framework.  Core capital (Tier 1) includes 
common shareholders’ equity and qualifying preferred stock, less goodwill, most intangible assets and other adjustments.  
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.  Market risk capital (Tier 3) includes qualifying unsecured subordinated debt.  Assets and off-balance sheet 
exposures are assigned to one of four categories of risk-weights, based primarily upon relative credit risk.  Risk-based 
capital ratios are calculated by dividing Tier 1 and total capital by risk-weighted assets.  For a depository institution to be 
considered well capitalized under the regulatory framework for prompt corrective action, the institution’s Tier 1 and total 
capital ratios must be at least 6% and 10% on a risk-adjusted basis, respectively.  As of December 31, 2010, BOK 
Financial’s Tier 1 and total capital ratios under these guidelines were 12.69% and 16.20%, 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 5% to be classified as well capitalized.  BOK Financial’s leverage ratio at December 
31, 2010 was 8.74%.   

3   

 
 
 
 
 
 
 
  
 
 
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 undercapitalized 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 undercapitalized.  Under these guidelines, each of the Banks was considered well capitalized as of December 
31, 2010.   

The federal regulatory authorities’ risk-based capital guidelines are based upon the 1988 capital accord of the Basel 
Committee on Banking Supervision (the “BIS”).  The BIS is a committee of central banks and bank supervisors/regulators 
from the major industrialized countries that develops broad policy guidelines for use by each country’s supervisors in 
determining the supervisory policies they apply.   

On September 12, 2010, the Group of Governors and Heads of Supervision (“GHOS”), the oversight body of the BIS, 
announced changes to strengthen the existing capital and liquidity requirements of internationally active banking 
organizations.  The GHOS agreement calls for national jurisdictions to implement the new requirements beginning January 
1, 2013.  Proposed changes include increased minimum ratios for common equity, tier 1 and total capital to risk weighted 
assets, increased leverage ratio of tier 1 capital to total assets including certain off balance-sheet commitments and 
derivative positions, and  “add-on” capital buffers that become effective under certain conditions.   Proposed changes also 
include required minimum liquidity coverage and net stable funding ratios.  The timing and extent to which these changes 
will be effective for banking organizations that are not internationally active, like BOK Financial Corporation, has not been 
determined.  Our current capital level appears to be well in excess of the proposed standards.   

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.     

Deposit Insurance  

Substantially all of the deposits held by the 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.  The FDIC utilizes a risk-based 
assessment system that imposes insurance premiums based upon a risk matrix that takes into account a bank’s capital level 
and supervisory rating (“CAMELS rating”).  The risk matrix includes four risk categories, distinguished by capital levels 
and supervisory ratings.  For large Risk Category 1 institutions (generally those with assets in excess of $10 billion) that 
have long-term debt issuer ratings, including Bank of Oklahoma, assessment rates are determined from weighted-average 
CAMELS component ratings and long-term debt issuer ratings.  The minimum annualized assessment rate for large 
institutions is 12 basis points per $100 of deposits and the maximum annualized assessment rate for large institutions is 50 
basis points per $100 of deposits.  Quarterly assessment rates for large institutions in Risk Category 1 may vary within this 
range depending upon changes in CAMELS component ratings and long-term debt issuer ratings.   

Subsequent to December 31, 2010, 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 
also required that the FDIC redefine the assessment base to average consolidated assets minus average tangible equity.  The 
final rule becomes effective April 1, 2011.  We do not expect the change to have a significant effect on our current deposit 
insurance assessment. 

In response to an increase in bank failures, the board of directors of the FDIC approved a special assessment during 2009.  
This assessment was calculated as 5 basis points times each insured depository institution’s assets minus Tier 1 capital as of 
June 30, 2009.  Collectively, the Banks paid $12 million of special assessment charges. 

On November 12, 2009 the board of directors of the FDIC voted to require insured institutions to prepay over three years of 
estimated insurance assessments on December 30, 2009 in order to strengthen the cash position of the DIF.  As of 
December 31, 2009 and each quarter thereafter, the regular quarterly assessment will be applied against the prepaid 
assessment until the asset is exhausted.  Any prepaid assessment not exhausted as of June 30, 2013 will be returned.  
Collectively, the Banks prepaid $78 million of deposit insurance assessments.  As of December 31, 2010, $57 million of 
prepaid deposit insurance assessments are included in Other assets on the Consolidated Balance Sheet of the Company.  

4   

 
 
 
  
 
 
 
  
 
 
 
 
In addition, the Banks are assessed a charge based on deposit balances by the Financing Corporation (“FICO”).  The FICO 
is a mixed-ownership government corporation established by the Competitive Equality Banking Act of 1987 whose sole 
purpose was to function as a financing vehicle for the now defunct Federal Savings & Loan Insurance Corporation. 

Dividends 

The primary source of liquidity for BOK Financial is dividends from the Banks, which are limited by various banking 
regulations to net profits, as defined, for the year plus retained profits for the preceding two years and further restricted by 
minimum capital requirements.  In consideration of our bank charter consolidation, Bank of Oklahoma, N.A. declared and 
paid a dividend of $175 million to BOK Financial Corporation for general corporate purposes.  Subsequent to the 
consolidation of the existing bank charters into BOKF, NA, based on the most restrictive limitations as well as 
management’s internal capital policy, BOKF, NA had excess regulatory capital and could declare up to $82 million of 
dividends without regulatory approval as of January 1, 2011.  This amount is not necessarily indicative of amounts that may 
be available to be paid in future periods.   

Source of Strength Doctrine 

According to Federal Reserve Board policy, bank holding companies are 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.  Similarly, under the cross-guarantee provisions of the 
Federal Deposit Insurance Act, in the event of a loss suffered by the FDIC as a result of default of a banking subsidiary or 
related to FDIC assistance provided to a subsidiary in danger of default, the other Banks may be assessed for the FDIC’s 
loss, subject to certain exceptions. 

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 credit policies of the Federal Reserve Board.  An important function of the 
Federal Reserve Board is to regulate the national supply of bank credit to moderate recessions and curb inflation.  Among 
the instruments of monetary policy used by the Federal Reserve Board to implement its 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 U.S. government enacted various 
programs and continues to enact programs to stimulate the economy.  These programs include the Trouble Assets Relief 
Program (“TARP”), which provided capital to eligible financial institutions and other sectors of the domestic economy, and 
the Temporary Liquidity Guarantee Program, which expanded insurance coverage to a larger amount of deposit account 
balances and other qualifying debt issued by eligible financial institutions.  In addition, the government recently enacted 
economic stimulus legislation, which increases government spending and reduces certain taxes.  In 2010, the Federal 
Reserve announced its intention to purchase up to $600 billion of U.S. government securities to further stimulate the 
economy.  The short-term effectiveness and long-term impact of these programs on the economy in general and on BOK 
Financial Corporation in particular are uncertain. 

The Company elected not to participate in the TARP Capital Purchase Program as we believed that our capital sources were 
sufficient to support organic growth, acquisitions within our current market areas, cash dividends on our common stock and 
periodic stock repurchases. 

Foreign Operations 

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

ITEM 1A.   RISK FACTORS 

The United States economy experienced a significant recession from 2007 to 2009.  Business activity across a wide range 
of industries and geographic regions decreased and unemployment increased significantly.  The financial services industry 
and capital markets have been adversely affected by significant declines in asset values, rising delinquencies and defaults, 
and restricted liquidity.  Numerous financial institutions failed or required a significant amount of government assistance 
due to credit losses and liquidity shortages.  The rate of economic recovery has been slow, unemployment has been 
persistently high and the national housing market remains depressed overall.  The Federal Reserve Board continues to take 
steps to promote more robust economic growth including maintaining historically low federal funds rate for an extended 
period of time.  High unemployment levels and protracted economic recovery could adversely affect our credit quality, 
financial condition and results of operations. 

5   

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 assure 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; 

inability to control BOK Financial's noninterest expenses; 

inability to increase noninterest income; 

deterioration in general economic conditions, especially in BOK Financial's core markets; 

inability to access capital; 

decreases in net interest margins; 

increases in competition; 

adverse regulatory developments. 

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

A substantial majority of BOK Financial loans are generated in Oklahoma and other markets in the southwest region.  As a 
result, poor economic conditions in Oklahoma 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. 

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, a portion of BOK Financial's total loan 
portfolio is comprised of loans to borrowers in the energy industry, which is historically a cyclical industry. Low 
commodity prices may adversely affect that industry and, consequently, may affect BOK Financial's business negatively. 
The effect of volatility in commodity prices on our customer derivatives portfolio could adversely affect our liquidity and 
regulatory capital.  In addition, 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 Oklahoma and the southwest 
region could also have an adverse effect on BOK Financial's operations. 

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 BOK Financial's 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 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.  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. 

6   

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
BOK Financial's substantial holdings of mortgage-backed securities and mortgage servicing rights could 
adversely affect BOK Financial's business. 

BOK Financial has invested a substantial amount of its holdings in mortgage-backed securities, which are investment 
interests in pools of mortgages. Mortgage-backed securities are 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 could 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 could also 
accelerate premium amortization.  Conversely, a significant increase in interest rates could 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. 

In an effort to promote a stronger pace of economic recovery and ensure inflation, over time, is at a level consistent with its 
mandate, the Federal Reserve Board has announced it will continue its policy of reinvesting principal payments from its 
security holdings in longer-term Treasury securities which may result in rising interest rates and lower fair values of our 
residential mortgage-backed securities.     

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.  Credit risk on mortgage-backed 
securities originated by private issuers is mitigated somewhat by investing in senior tranches with additional collateral 
support. 

In addition, as part of BOK Financial's mortgage banking business, BOK Financial has substantial holdings of mortgage 
servicing rights. The 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 cancellation of the related servicing rights. BOK Financial's investments and 
dealings in mortgage-related products increase the risk that falling interest rates could adversely affect BOK Financial's 
business. BOK Financial attempts to manage this risk by maintaining an active hedging program for its mortgage servicing 
rights. BOK Financial's hedging program has only been partially successful in recent years.  The value of mortgage 
servicing rights may also decrease due to rising delinquency or default of the loans serviced.  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 banks rely on other financial institutions and the Federal Home Loan Banks of Topeka and 
Dallas 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. 

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 Oklahoma, as well as in BOK Financial's other markets. 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 nonfinancial firms that offer services similar to BOK Financial's. Large national 
financial institutions have entered the Oklahoma market. These 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. 

Banking regulations could adversely affect BOK Financial. 

BOK Financial and its subsidiaries are extensively regulated under both federal and state law. In particular, BOK Financial 
is subject to the Bank Holding Company Act of 1956, the National Bank Act and the Dodd-Frank Act. These regulations 
are primarily for the benefit and protection of BOK Financial's customers and not for the benefit of BOK Financial's 
investors. In the past, BOK Financial's business has been materially affected by these regulations. For example, regulations 
limit BOK Financial's business to banking and related businesses, and they limit the location of BOK Financial's branches 
and offices, as well as the amount of deposits that it can hold in a particular state. These regulations may limit BOK 
Financial's ability to grow and expand into new markets and businesses. 

7   

 
 
 
 
 
 
 
 
 
 
 
 
Additionally, under the Community Reinvestment Act, BOK Financial is required to provide services in traditionally 
underserved areas. BOK Financial's ability to make acquisitions and engage in new business may be limited by these 
requirements. 

The Federal Deposit Insurance Corporation Improvement Act of 1991 and the Bank Holding Company Act of 1956, and 
various regulations of regulatory authorities, require us to maintain specified capital ratios. Any failure to maintain required 
capital ratios would limit the growth potential of BOK Financial's business. 

Under a long-standing policy of the Board of Governors of the Federal Reserve System, a bank holding company is 
expected to act as a source of financial strength for its subsidiary banks. As a result of that policy, BOK Financial may be 
required to commit financial and other resources to its subsidiary banks in circumstances where we might not otherwise do 
so. 

The trend toward increasingly extensive regulation is likely to continue and become more costly in the future.  Laws, 
regulations or policies currently affecting BOK Financial and its subsidiaries may change at any time. Regulatory 
authorities may also change their interpretation of these statutes and regulations. Therefore, BOK Financial's business may 
be adversely affected by any future changes in laws, regulations, policies or interpretations.  For example, effective July 1, 
2010, the Company recently implemented changes mandated by federal regulations concerning overdraft charges that 
significantly impacted our fee revenue in the second half of 2010.   

The implementation of the Dodd-Frank Act will affect BOK Financial’s business including interchange revenue, mortgage 
banking, consumer products and higher capital standards.  Among the rules pending for mortgage banking are uniform 
lending and servicing standards, consumer protection measures and several reforms affecting loan originators.  A cap on 
interchange revenue has also been proposed.  The Bureau of Consumer Financial Protection will have authority over banks 
greater than $10 billion in assets and may implement additional consumer protection standards.  BOK Financial will be 
affected by other aspects of the Dodd-Frank Act including new capital rules and revised deposit insurance assessments.  
Provisions of the Dodd-Frank Act may also make portions of our customer hedging programs uneconomical to continue.   

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. 

BOK Financial is a financial holding company, and a substantial portion of BOK Financial's cash flow typically comes 
from dividends that BOK Financial's bank and nonbank subsidiaries pay to BOK Financial. Various statutory provisions 
restrict the amount of dividends BOK Financial's subsidiaries can 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 addition, if any of BOK Financial's subsidiaries liquidates, that 
subsidiary's creditors will be entitled to receive distributions from the assets of that subsidiary to satisfy their claims against 
it before BOK Financial, as a holder of an equity interest in the subsidiary, will be entitled to receive any of the assets of the 
subsidiary. If, however, BOK Financial is a creditor of the subsidiary with recognized claims against it, BOK Financial will 
be in the same position as other creditors. 

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. 

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

Mr. George B. Kaiser owns a majority of the outstanding shares of BOK Financial's common stock. 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  

8   

 
 
 
 
 
 
 
 
 
 
 
 
 
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. 

ITEM 1B.   UNRESOLVED STAFF COMMENTS 

None. 

ITEM 2.   PROPERTIES 

BOK Financial and its subsidiaries own and lease improved real estate that is carried at $265 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.   SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS 

No matters were submitted to a vote of security holders, through the solicitation of proxies or otherwise, during the three 
months ended December 31, 2010.   

9   

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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, 2011, common shareholders of record numbered 901 with 68,274,150 shares outstanding. 

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

2010: 

Low 
High 
Cash dividends 

2009: 

Low 
High 
Cash dividends 

First 

$45.43 
53.11 
0.24 

$22.95 
40.71 

0.225 

Second 

$47.45 
55.60 
0.25 

$34.46 
43.02 
0.24 

Third 

$42.89 
50.58 
0.25 

$34.81 
48.10 
0.24 

Fourth 

$44.83 
54.86 
0.25 

$41.87 
47.91 
0.24 

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, and the KBW 50 Bank Index for the period commencing December 31, 2005 and ending December 
31, 2010.* 

Total Return Performance

140

120

100

80

60

40

20

BOK Financial Corporation

NASDAQ Composite

NASDAQ Bank

KBW 50

l

e
u
a
V
x
e
d
n

I

12/31/05

12/31/06

12/31/07

12/31/08

12/31/09

12/31/10

Period Ending 

Index 
BOK Financial Corporation 
NASDAQ Composite 
NASDAQ Bank Index 
KBW 50 

12/31/05 
100.00 
100.00 
100.00 
100.00 

12/31/06 
122.36 
110.39 
113.82 
119.39 

12/31/07 
116.72 
122.15 
91.16 
93.36 

12/31/08 
92.86 
73.32 
71.52 
48.97 

12/31/09 
111.79 
106.57 
59.87 
48.11 

12/31/10 
128.17 
125.91 
68.34 
59.34 

* Graph assumes value of an investment in the Company’s Common Stock for each index was $100 on December 31, 2005. 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, which were 
first paid in 2005, are assumed to have been reinvested in BOK Financial Common Stock. 

10  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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, 2010. 

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

1,215,927 

1,215,927 

1,215,927 

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

– 

– 

– 

– 

Period 

Total Number of 
Shares Purchased 2 

Average Price 
Paid per Share 

October 1, 2010 to October 31, 2010 

887 

November 1, 2010 to November 30, 2010 

20,788 

December 1, 2010 to December 31, 2010 

50,208 

$45.38 

$50.12 

$53.01 

Total 

1 

71,883 

On April 26, 2005, the Company’s board of directors authorized the Company to repurchase up to two million shares of the 

Company’s common stock.  As of December 31, 2010, the Company had repurchased 784,073 shares under this plan. 

2 

The Company routinely repurchases mature shares from employees to cover the exercise price and taxes in connection with 

employee stock option exercises. 

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.”  

11  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
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) 

December 31, 

2010 

2009 

2008 

2007 

2006 

  $  851,082 
142,030 
709,052 
105,139 
516,394 
246,754 

  $  914,569 
204,205 
710,364 
195,900 
480,512 
200,578 

  $ 1,061,645 
414,783 
646,862 
202,593 
415,194 
153,232 

  $ 1,160,737 
616,252 
544,485 
34,721 
405,622 
217,664 

  $  986,429 
499,741 
486,688 
18,402 
371,696 
212,977 

10,643,036 
23,941,603 
17,179,061 
398,701 
2,521,726 
394,469 

11,279,698 
23,516,831 
15,518,228 
398,539 
2,205,813 
484,295 

12,876,006 
22,734,648 
14,982,607 
398,407 
1,846,257 
342,291 

11,940,570 
20,667,701 
13,459,291 
398,273 
1,935,384 
104,159 

10,651,178 
18,059,624 
12,386,705 
297,800 
1,721,022 
44,343 

Selected Financial Data 

For the year: 

Interest revenue 
Interest expense 
Net interest revenue 
Provision for credit losses 
Fees and commissions revenue 
Net income 

Period-end: 
Loans 
Assets 
Deposits 
Subordinated debentures 
Shareholders’ equity 
Nonperforming assets2 

Profitability Statistics 

Earnings per share (based on average equivalent 
shares): 

Basic 
Diluted 

  $ 

3.63 
3.61 

  $ 

2.96 
2.96 

  $ 

  $ 

2.27 
2.27 

  $ 

3.24 
3.22 

3.19 
3.16 

Percentages (based on daily averages): 

Return on average assets 
Return on average shareholders’ equity 
Average shareholders’ equity to average assets 

1.04% 

10.18 
10.19 

0.87% 
9.66 
8.98 

0.71%
7.87 
9.01 

1.14% 
12.01 
9.53 

1.27%
13.23 
9.58 

Common Stock Performance  

Per Share: 

Book value per common share 
Market price: December 31 close 
Market range – High close 
Market range – Low close 
Cash dividends declared 
Dividend payout ratio 

Selected Balance Sheet Statistics 

Period-end: 

  $ 

  $ 

36.97 
53.40 
55.68 
42.89 
0.99 
27.16% 

  $ 

32.53 
47.52 
48.13 
22.98 
0.945 
31.93% 

  $ 

27.36 
40.40 
60.84 
38.48 

0.875 
38.55%

  $ 

28.75 
51.70 
55.57 
47.47 
0.75 
23.29% 

25.66 
54.98 
54.98 
44.43 
0.55 
17.41%

Tier 1 capital ratio 
Total capital ratio 
Leverage ratio 
Tangible common equity ratio1 
Allowance for loan losses to nonperforming 

loans 

Allowance for loan losses to loans 
Combined allowances for credit losses to loans 4

12.69% 
16.20 
8.74 
9.21 

115.76 
2.75 
2.89 

10.86% 
14.43 
8.05 
7.99 

82.22 
2.59 
2.72 

9.40% 

9.38% 

12.81 
7.89 
6.64 

74.49 
1.81 
1.93 

12.54 
8.20 
7.72 

133.79 
1.06 
1.24 

9.78%

11.58 
8.79 
8.22 

305.37 
1.03 
1.22 

Miscellaneous (at December 31) 

Number of employees (full-time equivalent) 
Number of banking locations 
Number of TransFund locations 
Trust assets 
Mortgage loan servicing portfolio3 

4,432 
207 
1,943 
  $ 32,751,501 
    12,059,241 

4,355 
202 
1,896 
   $30,385,365 
    7,366,780 

4,300 
202 
1,933 
   $30,454,512 
    5,983,824 

4,110 
195 
1,822 
   $36,288,592 
    5,481,736 

3,958 
169 
1,649 
   $31,704,091 
    4,988,611 

1 

2 

3 
4 

Shareholders’ equity less preferred equity, intangible assets and equity provided by the TARP Capital Program (none) 
divided by total assets less intangible assets. 
Includes nonaccrual loans, renegotiated loans and assets acquired in satisfaction of loans. Excludes loans past due 90 days or 
more and still accruing. 
Includes outstanding principal for loans serviced for affiliates. 
Includes allowance for loan losses and allowance for off-balance sheet credit losses. 

12  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 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.   

From 2007 to 2009 the United States experienced a severe recession, characterized by substantial market volatility and lack 
of available liquidity.  The effects of the recession continued to impact the economy in 2010, primarily characterized by 
slow economic growth and persistently high national unemployment rates.  In response, the U.S. government continued to 
provide significant liquidity and other intervening measures to support economic recovery based on evidence of subdued 
inflation.  Lending activity remained slow in light of the economic uncertainty and interest rates remained at historic lows 
throughout the year.  Low national mortgage rates during much of the year sustained a high level of mortgage lending 
activity and increased prepayments of our mortgage-backed securities.  Cash flows from these securities were reinvested at 
current rates.     

Performance Summary 

BOK Financial’s net income for 2010 totaled $246.8 million or $3.61 per diluted share compared to $200.6 million or 
$2.96 per diluted share compared to 2009, up 23% over 2009 on diversified fee income growth and improving credit 
quality.  Net income was up 15% over last year, excluding a $6.5 million or $0.10 per diluted share day-one gain from the 
purchase of the rights to service $4.2 billion of residential mortgage loans on favorable terms in 2010 and a $7.7 million or 
$0.11 per share special assessment by the Federal Deposits Insurance Corporation (“FDIC”) in 2009. 

Highlights of 2010 included: 

•  Net interest revenue totaled $709.1 million for 2010 compared to $710.4 million for 2009.  Net interest margin 
was 3.50% for 2010, compared to 3.57% for 2009.  Net interest margin narrowed during the year as increased 
cash flows from our securities portfolio were  reinvested at lower current rates and increased prepayment speeds 
accelerated premium amortization. 

• 

Fees and commissions revenue increased $35.9 million or 7% over 2009.  Mortgage banking revenue increased 
$22.6 million over the prior year on increased loan production and servicing revenue.  Deposit service charges 
and fees decreased $12.2 million due primarily to changes in overdraft fee regulations which became effective the 
second half of 2010.  

•  Operating expenses, excluding changes in the fair value of mortgage servicing rights and the impact of the FDIC 

special assessment in 2009, totaled $756.8 million, up $59.7 million or 9% over the prior year.  Net losses and 
operating expenses on repossessed assets increased $23.1 million and personnel costs increased $21.3 million. 

•  Combined allowances for credit losses totaled $307 million or 2.89% of outstanding loans at December 31, 2010 

compared to $306 million or 2.72% of outstanding loans at December 31, 2009.  Provision for credit losses and 
net charge-offs were $105.1 million and $104.4 million, respectively, for 2010 and $195.9 million and $137.8 
million, respectively, for 2009. 

•  Nonperforming assets totaled $394 million or 3.66% of outstanding loans and repossessed assets at December 31, 
2010, down from $484 million or 4.24% of outstanding loans and repossessed assets at December 31, 2009.  
Nonaccruing loans decreased $109 million and repossessed assets increased $12 million during 2010.  

•  Outstanding loan balances were $10.6 billion at December 31, 2010, down $637 million from the prior year.    

Unfunded commercial loan commitments increased $182 million during 2010 to $4.6 billion. 

• 

• 

Total period-end deposits increased $1.7 billion during 2010 to $17.2 billion, due primarily to growth in interest-
bearing transaction and demand deposits. 

Tangible common equity and Tier 1 capital ratios were 9.21% and 12.69%, respectively, at December 31, 2010 
and 7.99% and 10.86%, respectively, at December 31, 2009.  Growth in the tangible common equity ratio was 
due largely to retained earnings and a $116 million after-tax increase in the fair value of available for sale 
securities.  The Company and each of its subsidiary banks exceeded the regulatory definition of well capitalized.  
The Company’s Tier 1 capital ratios, as defined by banking regulations, were 12.69% at December 31, 2010 and 
10.86% at December 31, 2009. 

13  

 
 
 
 
    
 
 
 
 
 
 
 
 
 
 
 
Net income for the fourth quarter of 2010 totaled $58.8 million or $0.86 per diluted share compared with $42.8 million or 
$0.63 per diluted share in 2009.     

Highlights of the fourth quarter of 2010 included: 

•  Net interest revenue totaled $163.7 million, down $20.8 million from the fourth quarter of 2009.  Net interest 

margin was 3.19% for the fourth quarter of 2010 and 3.64% for the fourth quarter of 2009.  Net interest revenue 
decreased as cash flows from our securities portfolio were reinvested at lower rates and increased prepayment 
speeds accelerated premium amortization.   

•  Net loans charged off and provision for credit losses were $14.2 million and $7.0 million, respectively, for the 
fourth quarter of 2010.  Net loans charged off and provision for credit losses were $34.5 million and $48.6 
million, respectively for the fourth quarter of 2009.   

• 

Fees and commissions revenue totaled $136.0 million, up $20.0 million over the fourth quarter of 2009 due 
primarily to higher mortgage banking revenue and brokerage and trading revenue.  Increased transaction card 
revenue and trust fees and commission were offset by a decrease in deposit service charges as a result of changes 
in banking regulations concerning overdraft fees. 

•  Changes in the fair value of our mortgage servicing rights, net of economic hedge, increased pre-tax net income 

for the fourth quarter of 2010 by $6.6 million and increased pre-tax net income by $845 thousand in the fourth 
quarter of 2009. 

•  Other operating expense, excluding changes in the fair value of mortgage servicing rights, increased $21.8 

million over the prior year due primarily to a $13.1 million increase in personnel costs.  Net losses and operating 
expenses on repossessed assets also increased over the fourth quarter of 2009.      

•  Other than temporary impairment charges on certain privately-issued residential mortgage-backed and equity 

securities reduced pre-tax net income by $6.6 million during the fourth quarter of 2010 and $14.5 million during 
the fourth quarter of 2009. 

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. 

Allowances for Loan Losses and Off-Balance Sheet Credit Losses  

Allowances for loan losses and off-balance sheet credit losses are assessed by management based on an ongoing quarterly 
evaluation of the probable estimated losses inherent in the 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 assure consistency across the Company.  The allowance for loan losses includes 
allowances assigned to specific impaired loans and commitments that have not yet been charged down to amounts we 
expect to recover, general allowances for unimpaired loans that are based on migration factors and nonspecific allowances 
that are based on analysis of general economic risk concentration and related factors.  Additional details regarding the 
policies utilized in the development of the allowances for loan losses and off-balance sheet credit losses are included in 
Notes 1 and 4 to the Consolidated Financial Statements.  There have been no material changes in the approach or 
techniques utilized in developing the allowances for loan losses or off-balance sheet credit losses during 2010. 

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.  This is substantially the same criteria utilized to determine whether a loan should be placed 
on nonaccrual status.  Generally, all nonaccruing commercial and commercial real estate loans are impaired.  Impaired 
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 determined through a quarterly evaluation of available cash resources and collateral value.  Specific 
allowances for impairment are determined for loans that have not yet been charged down to amounts we expect to recover 
through evaluation of estimated future cash flows, collateral values and historical statistics.  Estimates of future cash flows 
and collateral values require significant management judgments and are subject to volatility.   

14  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 are not adjusted 
by us.  Appraisals are updated 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 
form 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.   

General allowances for unimpaired loans are based on migration models.  Separate migration models are used to determine 
general allowances for commercial and commercial real estate loans, residential mortgage loans, and consumer loans.  
Substantially all commercial and commercial real estate loans and certain residential mortgage and consumer loans are risk-
graded based on an evaluation of the borrowers’ ability to repay the loans.  Risk grades are updated quarterly by 
management and may be based on significant subjective judgments.  Migration factors are determined for each risk-grade 
to determine the inherent loss based on historical trends.  We use an eight-quarter aggregate accumulation of net losses as a 
basis for the migration factors.  Losses incurred in more recent periods are more heavily weighted by a sum-of-periods-
digits formula.  The higher of current loss factors based on migration trends or a minimum migration factor judgmentally 
set by management based upon long-term history is assigned to each risk grade. 

Migration models fairly measure loss exposure during an economic cycle.  However, because they are based on historic 
trends, their accuracy is limited near the beginning or ending of a cycle.  Because of this limitation, the results of the 
migration models are evaluated by management quarterly.  Management may adjust the resulting general allowance upward 
or downward so that the allowance for loan losses represents credit losses inherent in the portfolio.   

The general allowance for residential mortgage loans is based on an eight-quarter average percent of loss.  The general 
allowance for consumer loans is based on an eight-quarter average percent of loss with separate migration factors 
determined by major product line, such as indirect automobile loans and direct consumer loans.   

Delinquency status is not a significant consideration in the evaluation of impairment or risk-grading of commercial or 
commercial real estate loans.  These evaluations are based on an assessment of the borrowers’ paying capacity and attempt 
to identify changes in credit risk before payments become delinquent.  Changes in the delinquency trends of residential 
mortgage loans and consumer loans may indicate increases or decreases in expected losses.   

Nonspecific allowances are maintained for risks beyond those factors specific to a particular loan or those identified by the 
migration models.  These factors include trends in the general economy in our primary lending areas, conditions in specific 
industries where we have a concentration and overall growth in the loan portfolio.  Evaluation of nonspecific factors 
considers the effect of the duration of the business cycle on migration factors.  Nonspecific factors also consider current 
economic conditions and other relevant factors.  A range of potential losses is determined for each factor identified. 

Fair Value Measurement 

Certain assets and liabilities are recorded at fair value in the Consolidated Financial Statements.  Fair value is defined as the exchange 
price that would be received to sell an asset or paid to transfer a liability in a principal or most advantageous market for the asset or 
liability in an orderly transaction between market participants at the measurement date, using assumptions market participants would 
use when pricing an asset or liability.  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. 

Fair value measurement and disclosure guidance provides a three level hierarchy 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, other 
observable inputs that can be observed either directly or indirectly and unobservable inputs for assets or liabilities.  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.  These rights are primarily retained from sales of 
loans we have originated.  Occasionally mortgage servicing rights may be purchased from other lenders.  
Originated mortgage servicing rights are initially recognized at fair value.  Purchased servicing rights are initially 
recognized at their purchase price.  Subsequent changes in fair value are recognized in earnings as they occur.   

There is no active market for trading in mortgage servicing rights.  We use a cash flow model 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  

15  

 
 
 
 
 
 
 
 
 
 
 
 
 
sources.  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 daily for 
changes in market conditions.  We adjust the prepayment projections determined by this model 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 would expect a 50 basis point increase in mortgage interest rates to 
increase the fair value of our servicing rights by $14 million.  We would expect a $17 million decrease in the fair 
value of our mortgage servicing rights from a 50 basis point decrease in 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, and foreign exchange 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 provided either by third-party dealers in the contracts or by quotes provided by independent 
pricing services.  Information used by these third-party dealers or independent pricing services to determine fair 
values are considered significant other observable inputs.  Fair values for interest rate, commodity and foreign 
exchange 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.   

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.  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. 

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.  The methodologies employed by the third-party pricing services are evaluated 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 this evaluation, we determined that the 
results represent prices that would be received to sell assets or paid to transfer liabilities in orderly transactions in 
the current market. 

A portion of our securities portfolio is comprised of debt securities for which third-party services have 
discontinued providing price information due primarily to a lack of observable inputs and other relevant data.  We 
estimate the fair value of these securities based on significant unobservable inputs, including projected cash flows 
discounted at rates indicated by comparison to securities with similar credit and liquidity risk.   We would expect 
the fair value to decrease $671 thousand if credit spreads utilized in valuing these securities widened by 100 basis 
points. 

16  

 
 
 
 
 
 
 
 
 
 
  
 
Goodwill Impairment 

Goodwill for each reporting unit is evaluated for impairment annually as of October 1st or more frequently if conditions 
indicate that impairment may have occurred.  The evaluation of possible goodwill impairment involves significant 
judgment based upon short-term and long-term projections of future performance. 

We identify the geographical market underlying each operating segment as reporting units for the purpose of performing 
the annual goodwill impairment test.  This is consistent with the manner in which management assesses the performance of 
the Company and allocates resources.  See additional discussion of the operating segments in the Assessment of Operations 
– Lines of Business section following. 

The fair value of each of our reporting units is estimated by the discounted future earnings method.  Income growth is 
projected for each of our reporting units over five years and a terminal value is computed.  The projected income stream is 
converted to current fair value by using a discount rate that reflects a rate of return required by a willing buyer.  
Assumptions used to value our reporting units are based on growth rates, volatility, discount rate and market risk premium 
inherent in our current stock price.  These assumptions are considered significant unobservable inputs and represent our 
best estimate of assumptions that market participants would use to determine fair value of the respective reporting units.  
Critical assumptions in our evaluation were an 11.00% average expected long-term growth rate, a 0.75% volatility factor 
for BOK Financial common stock, an 11.73% discount rate and a 12.26% market risk premium.   

The fair value, carrying value and related goodwill of reporting units for which goodwill was attributed as of our annual 
impairment test performed on October 1, 2010 is as follows in Table 2. 

Table 2  Goodwill allocation by reporting unit 

(In thousands) 

Fair Value 

Carrying 
Value1 

Goodwill 

$  791,113 
506,577 
82,136 
96,285 
82,595 

$  250,154
384,454 
60,778 
91,365 
56,174 

$     5,140 
196,183 
11,094 
39,458 
14,853 

534,246 
103,846 
59,425 
35,298 

163,012 
47,353 
15,446 
11,118 

1,683 
27,567 
2,874 
6,899 

Commercial: 
Oklahoma 
Texas 
New Mexico 
Colorado 
Arizona 

Consumer: 

Oklahoma 
Texas 
New Mexico 
Colorado 

Wealth Management: 

Oklahoma 
Texas 
New Mexico 
Colorado 
Arizona 

244,602 
104,262 
24,224 
52,878 
12,022 

92,113 
40,082 
5,787 
16,663 
7,341 

1,350 
16,372 
1,305 
9,254 
1,569 

1  Carrying value includes intangible assets attributed to the reporting  unit. 

Based on the results of the primary discounted cash flow test performed as of October 1, 2010, no goodwill impairment was 
noted. 

The fair value of our reporting units determined by the discounted future earnings method was further corroborated by 
comparison to the market capitalization of publicly traded banks of similar size and characteristics in our geographical 
footprint.  Considering the results of these two methods, management believes that no goodwill impairment existed as of 
our annual evaluation date.   

As of December 31, 2010, the market value of BOK Financial common stock, a primary input in our goodwill impairment 
analysis, was approximately 18% above the market value used in our most recent annual evaluation.  The market value is 
influenced by factors affecting the overall economy and the regional banks sector of the market.  Goodwill impairment may 
be indicated at our next annual evaluation date if the market value of our stock declines or sooner if we incur significant 
unanticipated operating losses or if other factors indicate a significant decline in the value of our reporting units.  The effect 
of a sustained 10% negative change in the market value of our common stock on September 30, 2010 was simulated.  This 
simulation indicated that an immaterial impairment in our Colorado Commercial reporting unit may be possible.  As of 
October 1, the fair value of our Colorado Commercial reporting unit exceeds the carrying value by 5%.   

17  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Numerous other factors could affect future impairment analyses including credit losses that exceed projected amounts or 
failure to meet growth projections.  Additionally, fee income may be adversely affected by increasing residential mortgage 
interest rates and changes in federal regulations.   

Other-Than-Temporary Impairment 

The Company evaluates impaired debt and equity securities quarterly to determine if impairments are temporary or other-
than-temporary.    

For impaired debt securities, management first determines whether it intends to sell or if it is more-likely-than-not that it 
will be required to sell the impaired securities.  This determination considers current and forecasted liquidity requirements, 
regulatory and capital requirements and securities portfolio management.  All impaired debt securities we intend to sell or 
we expect to be required to sell are considered other-than-temporarily impaired and the full impairment loss is recognized 
as a charge against earnings.  All impaired debt securities we do not intend or expect to be required to sell are evaluated 
further. 

Impairment of debt securities consistently rated investment grade by all nationally-recognized rating agencies is considered 
temporary unless specific contrary information is identified.  Impairment of securities rated below investment grade by at 
least one of the nationally-recognized rating agencies is evaluated to determine if we expect to recover the entire amortized 
cost basis of the security based on the present value of projected cash flows from individual loans underlying each security.  
Below investment grade securities we own consist primarily of privately issued residential mortgage-backed securities.  
The primary assumptions used to project cash flows are disclosed in Note 2 to the Consolidated Financial Statements.   

We consider the adjusted loan-to-value ratio and credit enhancement coverage ratio as part of our assessment of cash flows 
available to recover the amortized cost of our securities.  Adjusted loan-to-value ratio is an estimate of the collateral value 
available to support the realizable value of the security.  We calculate the adjusted loan-to-value ratio for each security 
using loan-level data.  The original loan-to-value ratio is adjusted for market-specific home price depreciation and credit 
enhancement on the specific tranche of each security we own.  The credit enhancement coverage ratio is an estimate of 
currently remaining subordinated tranches available to absorb losses on pools of loans that support the security.   

Credit losses, which are defined as the excess of current amortized cost over the present value of projected cash flows, on 
other-than-temporarily impaired debt securities are recognized as a charge against earnings.  Any remaining impairment 
attributed to factors other than credit losses are recognized in accumulated other comprehensive losses.  

Credit losses are based on long-term projections of cash flows which are sensitive to changes in assumptions.   Changes in 
assumptions and differences between assumed and actual results regarding unemployment rates, delinquency rates, default 
rates, foreclosures costs and home price depreciation can affect estimated and actual credit losses.  Deterioration of these 
factors beyond those described in Note 2 to the Consolidated Financial Statements could result in the recognition of 
additional credit losses.   

We performed a sensitivity analysis of all privately issued mortgage-backed securities rated below AAA.  Significant 
assumptions of this analysis included an increase in the unemployment rate to 12% over the next twelve months, decreasing 
to 8.5% over 21 months thereafter and an additional 20% house price depreciation.  The results of this analysis indicated an 
additional $29 million to $36 million of credit losses are possible.    

Impaired equity securities, including perpetual preferred stocks, are evaluated based on our ability and intent to hold the 
securities until fair value recovers over a period not to exceed three years.  The assessment of the ability and intent to hold 
these securities considers liquidity needs, asset / liability management objectives and securities portfolio objectives.  
Factors considered when assessing recovery include forecasts of general economic conditions and specific performance of 
the issuer, analyst ratings, and credit spreads for preferred stocks which have debt-like characteristics.   

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. 

Quarterly, management evaluates the Company’s effective tax rate based upon its current estimate of net income, tax 
credits and statutory tax rates expected for the full year.  Changes in income tax expense due to changes in the effective tax 
rate are recognized on a cumulative basis.  Annually, we file tax returns with each jurisdiction where we conduct business 
and settle our return liabilities.  We may also provide for estimated liabilities associated with uncertain filing positions.   

Deferred tax assets and liabilities are determined 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  

18  

 
 
 
 
 
    
 
 
 
 
 
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 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.  An allowance for the uncertain portion of the tax benefit, including estimated interest and 
penalties, is part of our current accrued income tax liability.  Estimated penalties and interest are recognized in income tax 
expense.  This for uncertain tax positions may reduce income tax expense in future periods if the uncertainty 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.   

Assessment of Operations 

Net Interest Revenue 

Tax-equivalent net interest revenue totaled $718.2 million for 2010, flat with the prior year.  The effect of a $506 million 
increase in average earning assets was largely offset by a 7 basis point decrease in net interest margin. 

The increase in average earning assets was primarily due to a $1.8 billion increase in securities partially offset by a $1.2 
billion decrease in net loans.  During 2009, we purchased U.S. government agency issued residential mortgage-backed 
securities to supplement earnings during a period of declining loan demand and to manage our interest rate risk.   The larger 
securities portfolio was maintained throughout 2010.  Average commercial, commercial real estate and consumer loans 
decreased compared to the prior year, partially offset by growth in residential mortgage loans. 

Growth in average earning assets was funded primarily by a $1.0 billion increase in average deposits.  Average interest-
bearing transaction account balances increased $1.5 billion and average demand deposit account balances increased $510 
million. Average time deposits decreased $970 million as we decreased higher-costing time deposits.  We also decreased 
average borrowed funds by $630 million during 2010.   

Table 3 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. 

Net interest margin, the ratio of tax-equivalent net interest revenue to average earning assets, was 3.50% for 2010 and 
3.57% for 2009.  The decrease in net interest margin was due primarily to lower yield on our securities portfolio partially 
offset by lower funding costs.   

The tax-equivalent yield on earning assets was 4.19% for 2010, down 40 basis points from 2009.  The securities portfolio 
yield was 3.35%, down 101 basis points from 2009.  Low intermediate and long-term interest rates experienced during the 
late third quarter and early fourth quarter of 2010 increased actual and projected prepayment speeds which drove higher 
levels of amortization of purchase premium.  In addition to increased premium amortization over the second half of 2010, 
approximately $1.4 billion that had been invested to yield 3.40% was reinvested at 2.20%.  The recent 100 basis point 
increase in interest rates should support a partial recovery of the securities portfolio yield as premium amortization slows 
and reinvestment rates improve.  Loan yields increased 17 basis points to 4.82% primarily due to early payoff penalties, 
non-use fees and other fees.  The cost of interest-bearing liabilities was 0.85% for 2010, down 36 basis points from 2009 
due largely to market conditions.  The cost of interest bearing deposits decreased 53 basis points to 0.85% and the cost of 
funds purchased and other borrowings increased 3 basis points to 0.84%.  In addition, we reduced certain types of higher-
costing time deposits and other borrowings during the year to lower our funding costs.  The benefit to net interest margin 
from earning assets funded by non-interest bearing liabilities was 16 basis points in 2010 compared to 19 basis points in 
2009 due to the low rate environment. 

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 27, approximately 62% of our commercial 
and commercial real estate loan portfolios are either variable rate or fixed rate 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 achieve 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 use derivative instruments to manage our interest rate risk.  Interest rate swaps with a combined notional amount of 
$30 million convert fixed rate liabilities to floating rate based on LIBOR.   The purpose of these derivatives is to position 
our balance sheet to be relatively neutral to changes in interest rates.  Net interest revenue increased $4.0 million in 2010, 
$13.1 million in 2009 and $7.0 million in 2008 from periodic settlements of derivative contracts.  This increase in net  

19  

 
 
 
 
 
 
 
 
 
 
 
 
interest revenue contributed 2 basis points to net interest margin in 2010, 6 basis points in 2009 and 4 basis points in 2008.  
Derivative contracts are carried on the balance sheet at fair value.  Changes in the fair value of these contracts are reported 
as derivative gains or losses in the Consolidated Statement of Earnings. 

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 3 and in the interest rate sensitivity projections as shown in the Market Risk section of this report. 

Table 3  Volume/Rate Analysis 

(In thousands) 

Tax-equivalent interest revenue: 
  Securities                                        
  Trading securities                            
  Loans 
  Funds sold and resell agreements 
Total                                                  
Interest expense: 
  Transaction deposits 
  Savings deposits 
  Time deposits                                   
  Federal funds purchased and repurchase 
agreements                                      
  Other borrowings                              
  Subordinated debentures 
Total                                                   
  Tax-equivalent net interest revenue         
Change in tax-equivalent adjustment 
Net interest revenue 

Tax-equivalent interest revenue: 

Securities 
Trading securities 
Loans 
Funds sold and resell agreements 

Total 
Interest expense: 

Transaction deposits 
Savings deposits 
Time deposits 
Funds purchased and repurchase agreements 
Other borrowings 
Subordinated debentures 

Total 
Tax-equivalent net interest revenue 
Change in tax-equivalent adjustment 
Net interest revenue 

Year Ended 2010 / 2009 

Year Ended 2009 / 2008 

Change Due To ¹ 

Change Due To ¹ 

  Change 

  Volume 

  Yield / 
  Rate 

  Change 

  Volume 

$ (22,339)
(918)
(39,096)
(50)
(62,403)

$ 65,845 
(861) 
(57,703) 
(30) 
7,251 

$(88,184) $   14,359 
(1,235) 
(158,854) 
(1,500) 
(147,230) 

(57)
18,607 
(20)
(69,654)

$   70,709 
851 
(12,458) 
(314) 
58,788 

(12,721)
105
(45,481)

8,736 
70 
(20,331) 

(21,457)
35 
(25,150)

(69,796) 
(62) 
(54,704) 

9,924 
30 
3,924 

(62) 
(2,375) 
8 
(13,954) 
$ 21,205 

(34)
(1,740)
125 
(48,221)
$ (21,433)

(96)
(4,115)
133
(62,175)
(228)
(1,084)
$  (1,312)

(8,843) 
5,982 
9 
11,026 
$ 47,762 

(53,016) 
(33,036) 
36 
(210,578) 
63,348 
154 
$  63,502 

  Yield 
  /Rate 

$(56,350) 
(2,086) 
(146,396) 
(1,186) 
(206,018) 

(79,720) 
(92) 
(58,628) 

(44,173) 
(39,018) 
27 
(221,604) 
$ 15,586 

4th Qtr 2010 / 4th Qtr 2009 

Change Due To¹ 

Change 

Volume 

Yield/Rate 

$   8,404 
72 
(8,806) 
(4) 
(334) 

1,889 
25 
(1,881) 
(173) 
(1,287) 
2 
(1,425) 
$   1,091 

$ (26,627) 
(240) 
10 
(5) 
(26,862) 

(4,209) 
(53) 
(1,672) 
490 
312 
122 
(5,010) 
  $(21,852) 

$ (18,223) 
(168) 
(8,796) 
(9) 
(27,196) 

(2,320) 
(28) 
(3,553) 
317 
(975) 
124 
(6,435) 
(20,761) 
(67) 
$ (20,828) 

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

Fourth Quarter 2010 Net Interest Revenue 

Tax-equivalent net interest revenue for the fourth quarter of 2010 totaled $165.9 million compared with $186.7 million for 
the fourth quarter of 2009.  Net interest margin was 3.19% for the fourth quarter of 2010 and 3.64% for the fourth quarter 
of 2009.  The decrease in net interest revenue and net interest margin was due primarily to lower yield on average earning 
assets, partially offset by lower funding costs.   Securities portfolio yield decreased 114 basis points to 2.73%.  Premium 
amortization in the residential mortgage-backed securities portfolio increased in the fourth quarter of 2010 due to extremely 
low intermediate and long term interest rates which accelerated actual and projected prepayment speeds.  In addition, 
approximately $800 million that had been yielding 3.15% was reinvested to yield 2.20%.   We expect that the 100 basis 
point increase in mortgage interest rates late in the fourth quarter of 2010 will reduce amortization expense in 2011.  

20  

 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Average earning assets increased $567 million or 3%, including a $1.3 billion increase in average securities.  Average net 
loans decreased $835 million compared to the fourth quarter of 2009.  Average balances in all major loan categories, except 
for residential mortgage, decreased.   Growth in average earning assets was funded primarily by a $505 million increase in 
average demand deposits.   Other borrowing decreased $1.6 billion compared to the fourth quarter of 2009, partially offset 
by a $1.2 billion increase in average interest bearing transaction account balances.   

2009 Net Interest Revenue 

Tax-equivalent net interest revenue for 2009 was $718.4 million compared with $655.1 million for 2008.  Average earning 
assets increased $1.5 billion or 8%, primarily due to a $1.8 billion increase in average securities.  Growth in the securities 
portfolio generally consisted of residential mortgage-backed securities issued by U.S. government agencies.  As shown in 
Table 3, net interest revenue increased $48 million due to changes in earning assets and interest bearing liabilities and 
increased $16 million due to changes in interest yields and rates.  Net interest margin increased to 3.57% in 2009 compared 
with 3.45% in 2008 primarily due to lower funding costs.  The cost of interest-bearing liabilities was 1.21% for 2009, down 
134 basis points from 2008.  The tax-equivalent yield on earning assets was 4.59% for 2009, down 105 basis points from 
2008.  Loan yields decreased 118 basis points to 4.65%.  However, loan spreads continued to improve.  The securities 
portfolio yield was 4.36%, down 80 basis points from 2008.   

Other Operating Revenue 

Other operating revenue increased $27.9 million over 2009 including a $35.9 million increase in fees and commission 
revenue partially offset by a $14.6 million decrease in net gains on securities, derivatives and other assets.  Other-than-
temporary charges recognized in 2010 earnings were $6.6 million less than in 2009.   

Table 4  Other Operating Revenue 
(In thousands) 

Brokerage and trading revenue 
Transaction card revenue 
Trust fees and commissions 
Deposit service charges and fees 
Mortgage banking revenue 
Bank-owned life insurance 
Other revenue 

Total fees and commissions 

2010 

2009 

Year ended December 31, 
2007 

$   101,471
112,302 
68,976 
103,611 
87,600 
12,066 
30,368 
516,394 

$     91,677    $  
105,517 
66,177 
115,791 
64,980 
10,239 
26,131 
480,512 

2008 
 42,8041 $  
100,153 
78,979 
117,528 
30,599 
10,681 
34,450 
415,194 

Gain (loss) on other assets, net 
Gain (loss) on derivative contracts, net 

Gain (loss) on available for sales securities, net 
Gains on Mastercard and Visa IPO securities 
Gain (loss) on mortgage trading securities, net 
Gain (loss) on securities, net 

(1,161)
4,271 

21,882 
– 
7,331 
29,213 

4,134 
(3,365)

59,320 
– 
(13,198)
46,122 

(9,406)
1,299 

9,196 
6,799 
10,948 
26,943 

Total other-than-temporary impairment 
Portion of loss recognized in other comprehensive 

income 

Net impairment losses recognized in earnings 

(29,960) 

(129,154) 

(5,306) 

(8,641) 

(2,151) 
(27,809) 

(94,741) 
(34,413) 

– 
(5,306) 

– 
(8,641) 

Total other operating revenue 

$   520,908  $   492,990 

$   428,724  $   401,980  $   371,623 

1  Includes net derivative credit losses with two bankrupt counterparties of $54 million. 

Fees and Commissions Revenue  

Diversified sources of fees and commissions revenue are a significant part of our business strategy and represented 42% of 
total revenue, excluding provision for credit losses and gains and losses on asset sales, securities and derivatives. 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.  We expect continued growth in other operating 
revenue through offering new products and services and by expanding into markets outside of Oklahoma.  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 increased $9.8 million or 11% over 2009.  Customer hedging revenue totaled $11.7 million, 
an increase of $5.0 million over prior year primarily due to energy derivatives.  Investment banking revenue totaled $10.0  

21  

62,542  $  
90,425 
78,231 
109,218 
22,275 
10,058 
32,873 
405,622 

2,404 
2,282 

(276) 
1,075 
(486) 
313 

2006 

53,413 
78,622 
71,037 
102,436 
26,996 
2,558 
36,634 
371,696 

1,499 
(622)

152 
– 
(1,102)
(950) 

– 

– 
– 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
million, a $2.3 million or 30% increase over 2009 due to timing and volume of transactions.  Retail brokerage revenue 
increased $3.0 million or 14% to $20.5 million.  Securities trading revenue was $56 million for 2010 compared to $57 
million for 2009.  Increased lending activity by our mortgage banking customers increased related securities transaction 
volume in 2010.  This activity was offset by a decline in municipal trading revenue as credit spreads widened on credit 
concerns in municipal securities and volumes dropped. 

Transaction card revenue depends largely on the volume and amount of transactions processed, the number of ATM 
locations and the number of merchants served.  Transaction card revenue increased $6.8 million or 6% over 2009.  Check 
card revenue totaled $33.1 million, an increase of $3.7 million or 12% over 2009 due primarily to a 9% increase in the 
number of check card transactions processed in 2010 compared to 2009.  Merchant discount fees increased $2.8 million or 
10% to $30.4 million on higher transaction volumes.  ATM network revenue totaled $48.8 million, up less than 1% over the 
prior year.  The number of TransFund ATM locations totaled 1,943 at December 31, 2010, up 2% over the prior year.  
Increased ATM transaction volumes were partially offset by a decrease in the average rate charged per transaction.  
Interchange fee limits proposed by the Federal Reserve Bank as required by the Dodd-Frank Act would significantly reduce 
transaction card revenue.  Based on the $0.12 cap proposed in December to be effective as of July 21, 2011, we would 
expect a decline in our interchange revenue of $12 million to $15 million in 2011.   

Trust fees and commissions increased $2.8 million or 4%.  The revenue increase was due to growth in the fair value of trust 
assets, partially offset by lower balances in our proprietary mutual funds.  In order to maintain positive yields in our 
Cavanal Hill Funds and our cash management sweep fund in the current low short-term interest rate environment, we 
voluntarily waived $3.7 million of administrative fees in 2010 and $4.7 million of administrative fees in 2009.  The fair 
value of trust assets administered by the Company totaled $32.8 billion at December 31, 2010 compared with $30.4 billion 
at December 31, 2009.      

Deposit service charges and fees declined $12.2 million or 11% compared to 2009.  Overdraft fees declined $12.0 million 
or 16% to $61.8 million.  The decrease in overdraft fees was primarily due to changes in federal regulations concerning 
overdraft changes which were effective July 1, 2010.   This performance is consistent with our previously disclosed 
expectation that changes in overdraft regulations would decrease fee income by $10 million to $15 million over the second 
half of 2010.  This decrease was partially mitigated by a new service charge imposed in the second quarter of 2010 on 
accounts that remain overdrawn for more than five days.  Commercial account service charge revenue decreased by $4.8 
million or 14% compared to 2009 to $29.4 million for 2010.  Customers kept larger commercial account balances, which 
increases the earnings credit, a non-cash method for commercial customers to avoid incurring charges for deposit services 
based on account balances.  Service charges on retail deposit accounts increased $585 thousand or 12% to $5.4 million.   

Mortgage banking revenue increased $22.6 million or 35% over 2009.  Revenue from originating and marketing mortgage 
loans increased $4.5 million or 10% over the prior year to $49.4 million.  Margins on mortgage loans originated for sale 
were historically wide during parts of 2010 due to high volume and falling interest rates.  Mortgage loans originated for 
sale in the secondary market totaled $2.6 billion in 2010 compared to $2.8 billion in 2009.  Mortgage loan servicing 
revenue totaled $38.2 million or 0.36% of the average outstanding balance of loans serviced for others in 2010 and $20.0 
million or 0.34% of loans serviced for others in 2009.  The average outstanding balance of loans serviced for others was 
$10.7 billion for 2010 and $5.9 billion for 2009.  During the first quarter of 2010, the Company purchased the rights to 
service $4.2 billion of residential mortgage loans.  The loans to be serviced are primarily concentrated in the New Mexico 
market and predominately held by Fannie Mae, Freddie Mac and Ginnie Mae.  The remaining growth in mortgage loans 
serviced for others was due to retaining mortgage servicing rights from mortgage loans originated.  No mortgage loan 
servicing rights were purchased in 2009. 

Net gains on securities, derivatives and other assets 

We recognized $21.9 million of net gains on sales of $2.0 billion of available for sale securities in 2010 and $59.3 million 
of net gains on sales of $3.1 billion of available for sale securities in 2009.  Securities were sold either because they had 
reached their expected maximum potential return or to mitigate exposure from rising interest rates.   

We also maintain a portfolio of securities and derivative contracts designated as an economic hedge of the changes in fair 
value of mortgage servicing rights that fluctuates due to changes in prepayment speeds and other assumptions as more fully 
described in Note 7 to the Consolidated Financial Statements.  As benchmark mortgage interest rates fall, prepayment 
speeds increase and the value of our mortgage servicing rights decreases.  As benchmark mortgage interest rates increase, 
prepayment speeds slow and the value of our mortgage servicing rights increase.   

22  

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

(In thousands) 

Gain on mortgage hedge derivative contracts 
Gain (loss) on mortgage trading securities, net 
Gain (loss) on financial instruments held as an economic 

2010 

2009 

Year ended December 31, 
2007 

2008 

2006 

$  

4,425 
7,331 

  $ 

– 
(13,198)

  $ 

– 
10,948 

  $ 

  $ 

– 
(486) 

– 
(1,102)

hedge of mortgage servicing rights, net 

11,756 

(13,198)

10,948 

(486) 

(1,102)

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

rights 

Gain (loss) on changes in fair value of mortgage 

servicing rights, net of gain on financial instruments 
held as an economic hedge 

 (8,171) 1 

12,124 

(34,515)

(2,893) 

3,009 

  $ 

3,585 

  $ 

(1,074)

  $  (23,567)

  $ 

(3,379) 

  $ 

1,907 

Net interest revenue on mortgage trading securities 2 

  $  19,043 

  $  13,366 

  $ 

4,569 

  $ 

595 

  $ 

594 

1  Excludes $11.8 million day-one pre-tax gain on the purchase of mortgage servicing rights in the first quarter of 2010. 
2  Actual interest earned on mortgage trading securities less transfer-priced cost of funds. 

In addition to the gain on mortgage hedge derivative contracts, gains (losses) on derivative contracts, net includes fair value 
adjustments of derivatives used to manage interest rate risk and certain liabilities we have elected to carry at fair value.  
Derivative instruments generally consist of interest rate swaps where we pay a variable rate based on LIBOR and receive a 
fixed rate.  The fair value of these swaps generally decreases as interest rate rise resulting in a loss to the Company and 
increases in value as interest rates fall resulting in a gain to the Company.  Certain certificates of deposit have been 
designated as reported at fair value.  This determination is made when the certificates of deposit are issued based on the 
Company’s intent to swap the interest rate on the certificates from a fixed rate to a LIBOR-based variable rate.  As interest 
rates fall, the fair value of these fixed-rate certificates of deposit generally increases and we recognize a loss.  Conversely, 
as interest rates rise, the fair value of these fixed-rate certificates of deposit generally decreases and we recognize a gain.  
We recognized a net loss on derivatives used to manage interest rate risk of $154 thousand during 2010 compared to a net 
loss on derivative of $3.4 million in 2009. 

The change in Net gain (loss) on other assets is due primarily to a $2.7 million decrease in the fair value of our private equity funds; 
$2.4 million of the decrease is allocated to limited partners through Net income (loss) attributable to non-controlling interest on the 
Statement of Earnings.   

As more fully described in the Note 2 to the Consolidated Financial Statements, we recognized $27.8 million of other-than-
temporary impairment losses in earnings in 2010 related to certain privately issued residential mortgage-backed securities 
and other equity securities.  We recognized $34.4 million of other-than-temporary impairment charges against earnings in 
2009 related to certain privately issued residential mortgage-backed securities and preferred stocks. 

Fourth Quarter 2010 Other Operating Revenue 

Other operating revenue for the fourth quarter of 2010 totaled $111.9 million, up $3.8 million over the prior year.  Fees and 
commission revenue increased $20.0 million or 17% over the fourth quarter of 2009.  Net gains on available for sale 
securities were down $10.7 million. 

Mortgage banking revenue increased $11.8 million or 88% over the same period last year.  Revenue from originating and 
marketing mortgage loans increased $7.1 million and mortgage loan servicing revenue increased $4.7 million.  Mortgage 
loans funded for sale totaled $822 million in the fourth quarter of 2010, up from $517 million in the fourth quarter of 2009.  
Brokerage and trading revenue increased $8.4 million or 41% over the prior year due to a $4.5 million increase in securities 
trading revenue, a $1.9 million increase in retail brokerage revenue and a $1.9 million increase in investment banking 
revenue.  Transaction card revenue increased $3.2 million or 12% compared to the previous year.  ATM fees, debit card 
processing fees and merchant discount fees all increased over the prior year.  Trust revenue increased $1.7 million or 10% 
compared with the fourth quarter of 2009.  The fair value of trust assets was up 8% compared to the prior year.   

Deposit service charges and fees were down $5.8 million or 20% due primarily to changes in federal regulation concerning 
overdraft charges that were effective July 1, 2010.  Commercial account service charge revenue also decreased $961 
thousand or 11%. 

We recognized net gains of $953 thousand on sales $536 million of available for sale securities in the fourth quarter of 
2010 compared to net gains of $11.7 million on sales of $765 million of available for sale securities in the fourth quarter of 
2009.   

For the fourth quarter of 2010, changes in the fair value of mortgage servicing rights increased pre-tax net income by $25.1 
million, partially offset by a net loss on mortgage trading securities of $11.1 million and a loss on derivative contracts of 
$7.4 million held as an economic hedge.  For the fourth quarter of 2009, changes in the fair value of mortgage servicing  

23  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
rights increased pre-tax net income by $5.3 million, partially offset by a net loss on mortgage trading securities held as an 
economic hedge of $4.4 million.  There were no derivative contracts held as an economic hedge of the mortgage servicing 
rights at December 31, 2009. 

2009 Other Operating Revenue 

Other operating revenue totaled $493.0 million for 2009, up $64.3 million over 2008.  Fees and commissions revenue 
increased $65.3 million and net gains on securities, derivatives and other assets increased $28.1 million, offset by a $29.1 
million increase in other-than-temporary impairment charges recognized in earnings.  Brokerage and trading revenue 
increased $48.9 million over 2008.  Fees and commissions revenue for 2008 was reduced by $54 million from net credit 
losses on derivative contracts with two bankrupt counterparties.  Customer hedging revenue decreased by $15 million or 
70% from 2008 due to lower commodity prices, partially offset by a $7.8 million or 16% increase in securities trading 
revenue over 2008 on increased activity by our mortgage banking customers.  Transaction card revenue increased $5.4 
million or 8% due to increases in ATM fees and check card revenue.  Trust fees and commissions decreased $12.8 million 
or 16% primarily due to the decrease in the fair value of all trust assets administered by the Company.  Service charges on 
deposit accounts declined $1.7 million or 1% on lower overdraft fees due to decreased transaction volume.  Mortgage 
banking revenue increased $34.4 million or 112% over 2008 due to increases in originating and marketing mortgages and 
mortgage loan servicing revenue.   

Net securities gains totaled $46.1 million for 2009.  Other-than-temporary impairment charges of $34.4 million and $5.3 
million were recognized in 2009 and 2008, respectively, on certain privately issued residential mortgage-backed securities 
and variable-rate, perpetual preferred stocks.  Losses on mortgage trading securities of $13.2 million were partially offset 
by changes in the fair value of our mortgage servicing rights of $12.1 million.   

Other Operating Expense 

Other operating expense totaled $753.2 million for 2010, up $56.4 million over 2009.  Changes in the fair value of mortgage servicing 
rights decreased other operating expenses by $3.7 million in 2010 and decreased other operating expenses by $12.1 million in 2009.  In 
addition, operating expenses for 2009 included $11.8 million for the FDIC special assessment.  Excluding these items, other operating 
expense totaled $756.8 million for 2010, up $59.7 million over 2009.  Personnel expenses increased $21.3 million or 6% over the 
previous year.  Non-personnel operating expenses increased $38.4 million or 12% over 2009 due largely to a $23.1 million increase in 
losses and operating expenses related to repossessed assets. 

Table 6  Other Operating Expenses 
(In thousands) 

Personnel expense 
Business promotion 
Professional fees and services 
Net occupancy and equipment 
Insurance 
FDIC special assessment 
Data processing and communications 
Printing, postage and supplies 
Net (gains) losses and operating expenses of 

repossessed assets 

Amortization of intangible assets 
Mortgage banking costs 
Change in fair value of mortgage servicing rights 
Visa retrospective responsibility obligation 
Other expense 
Total 

Personnel Expense 

2010 

2009 

2008 

2007 

2006 

Year ended December 31, 

$ 401,864 
17,726 
30,217 
63,969 
24,320 
– 
87,752 
13,665 

$  380,517 
19,582 
30,243 
65,715 
24,040 
11,773 
81,291 
15,960 

34,483 
5,336 
40,739 
(3,661) 
– 
36,760 
$ 753,170 

11,401 
6,970 
36,304 
(12,124) 
– 
25,061 
    $   696,733 

$ 352,947 
23,536 
27,045 
60,632 
11,988 
– 
78,047 
16,433 

1,019 
7,661 
22,513 
34,515 
(2,767) 
28,835 
$ 662,404 

$ 328,705 
21,888 
22,795 
57,284 
3,017 
– 
72,733 
16,570 

691 
7,358 
13,111 
2,893 
2,767 
25,175 
$ 574,987 

$ 296,260 
19,351 
17,744 
52,188 
4,270 
– 
66,926 
15,862 

474 
5,327 
12,898 
(3,009) 
– 
24,016 
$ 512,307 

Personnel expense totaled $401.9 million for 2010 and $380.5 million for 2009.  Regular compensation, which consists of 
salaries and wages, overtime pay and temporary personnel costs, totaled $238.7 million, up $6.8 million or 3% over 2009.  
The increase in regular compensation was primarily due to an increase in the average regular compensation per full time 
equivalent employee.  Average staffing levels were held at a level consistent with 2009. 

24  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 7  Personnel Expense 
                   (In thousands) 

Regular compensation 
Incentive compensation: 

Cash-based 
Stock-based 

Total incentive compensation 
Employee benefits 
Workforce reduction costs, net 
  Total personnel expense 
Average staffing 
  (full-time equivalent) 

2010 

2009 

2008 

2007 

2006 

Year Ended December 31, 

$  238,690 

$ 

231,897 

$

219,629 

$

206,857 

$ 

185,466 

91,205 
12,778 
103,983 
59,191 
– 
$  401,864 

80,582 
10,572 
91,154 
57,466 
– 
380,517 

$

79,215 
3,962 
83,177 
50,141 
– 
352,947 

$

62,657 
8,763 
71,420 
47,929 
2,499 
328,705 

$

54,093 
11,111 
65,204 
45,590 
– 
296,260 

$ 

4,394 

4,403 

4,140 

4,106 

3,828 

Incentive compensation increased $12.8 million or 14%.  Cash-based incentive compensation is either intended to provide 
current rewards to employees who generate long-term business opportunities to 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 for 2010 increased $10.6 million or 13% over the 
previous year.  The increase in cash-based incentive compensation over 2009 included a $4.3 million or 13% increase in 
sales commissions related to brokerage and trading revenue and a $6.3 million increase in cash-based incentive 
compensation for other business lines.   

The Company also provides stock-based incentive compensation plans.  Stock-based compensation plans include both 
equity and liability awards.  Compensation expense related to liability awards decreased $297 thousand compared with 
2009.  This decrease reflected changes in the market value of BOK Financial common stock and other investments.  The 
year-end closing market price per share of BOK Financial common stock increased $5.88 during 2010 and $7.12 during 
2009.  Compensation expense for equity awards increased $2.5 million over 2009.  Expense for equity awards is based on 
the grant-date fair value of the awards and is unaffected by subsequent changes in fair value.  

Employee benefit expense increased $1.7 million or 3% over 2009.  Employee medical insurance costs of $19.4 million 
were flat year over year.  The Company self-insures a portion of its employee health care coverage and these costs may be 
volatile.  Employee retirement plan costs increased $1.2 million over the prior year and pension expense increased $650 
thousand over 2009 due to changes in the expected return on plan assets and discount rate.     

Non-Personnel Operating Expenses 

Non-personnel operating expenses, excluding changes in the fair value of mortgage servicing rights and FDIC special 
assessment, increased $38.4 million or 12% over 2009.  Net losses and operating expenses related to repossessed assets 
increased $23.1 million.   Net losses from sales and writedowns of repossessed property based on our quarterly reviews of 
carrying values increased $17.7 million.  Operating expenses on repossessed assets, which consist largely of property taxes, 
increased $5.4 million.  In addition, Data processing and communications expense increased $6.5 million due primarily to 
higher transaction volume and increased software amortization expense.  An $11.7 million increase in other expense 
included $6.1 million of depreciation expense on equipment we lease to earn tax credits.  The benefit of this leasing activity 
is largely recognized through reduced federal and state income tax expense. 

Fourth Quarter 2010 Operating Expenses 

Other operating expense totaled $178.4 million for the fourth quarter of 2010, up $1.9 million over the fourth quarter of 
2009.  Changes in the fair value of mortgage servicing rights reduced operating expenses by $25.1 million in the fourth 
quarter of 2010 compared with a reduction in operating expenses of $5.3 million in the fourth quarter of 2009.  Excluding 
the change in fair value of mortgage servicing rights, other operating expenses increased $21.8 million or 12%.  Personnel 
expense increased $13.1 million due largely to a $7.7 million increase in cash-based incentive compensation.  Regular 
compensation increased $2.5 million and changes in the cost of liability-based stock compensation increased $1.6 million. 
Non-personnel expenses increased $8.7 million over the prior year, including $4.7 million of increased depreciation 
expense on equipment we lease to earn tax credits and a $1.9 million increase in net losses and operating expenses on 
repossessed assets. 

2009 Operating Expenses 

Other operating expense for 2009 totaled $696.7 million, up $34.3 million or 5% increase over 2008.  Changes in the fair 
value of mortgage servicing rights decreased operating expenses by $12.1 million in 2009 and increased operating expenses 
by $34.5 million in 2008.  Personnel expense increased $27.6 million or 8%.  Non-personnel expenses, excluding changes 
in the fair value of mortgage servicing rights and an $11.8 million FDIC special assessment, increased $41.6 million or  

25  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
15% primarily due to an increase in regular FDIC assessments, mortgage banking costs and net losses and operating 
expenses related to repossessed assets.   

Regular compensation expense totaled $232.0 million, up $12.3 million, or 6% over 2008 due to increases in average 
headcount and compensation rates.  Incentive compensation increased $8.0 million, or 10% to $91 million.  Expense for 
cash-based incentive compensation plans increased $1.4 million or 2% including a $5.2 million or 18% increase in sales 
commissions related to brokerage and trading revenue, offset by decreased cash-based incentive compensation for other 
business lines.  Stock-based compensation expense increased $6.6 million.  Liability awards increased $7.7 million due 
primarily to an increase in the market value of BOK Financial common stock and other investments.  The year-end closing 
market price per share of BOK Financial common stock increased $7.12 during 2009.  Compensation expense for equity 
awards decreased $1.0 million compared to 2008.  Employee benefit expenses increased $7.3 million or 15% to $57 million 
related to medical insurance costs, employee retirement plans and payroll taxes.  

Mortgage banking costs, excluding changes in the fair value of mortgage servicing rights, increased $13.8 million over 
2008.  Expense recognized for actual prepayment of mortgage loans serviced totaled $20.9 million in 2009 and $12.0 
million in 2008.  Low mortgage interest rates and other incentive to stimulate the housing market caused an increase in 
actual loan prepayments in 2009.  In addition, the provision for losses on mortgage loans sold with recourse totaled $12.2 
million in 2009 compared to $8.6 million in 2008. 

Deposit insurance expense, excluding the FDIC special assessment, totaled $23.0 million for 2009 compared to $11.2 
million for 2008.  The increase was due to an 8 basis point increase in the average assessment rate and a $1.5 billion 
increase in average assessable deposits. 

All other operating expenses increased $16 million or 7% over 2008.  Net losses and operating expenses on repossessed 
asset increased $10.4 million on higher repossessed asset balances and net occupancy and equipment expense increased 
$5.1 million. 

Income Taxes 

Income tax expense was $123.4 million or 33% of book taxable income for 2010, $106.7 million or 34% of book taxable 
income for 2009 and $64.9 million or 31% of book taxable income for 2008.  Tax expense currently payable totaled $150 
million in 2010, $129 million in 2009 and $116 million in 2008.  

The statute of limitations expired on an uncertain income tax position and the Company adjusted its current income tax 
liability to amounts on filed tax returns for 2009 in 2010.  Excluding these adjustments, income tax expense for 2010 would 
have been $126 million or 34% of book taxable income.  In addition, the Company recognized adjustments to its current 
income tax liability for amounts on filed tax returns for 2007 during 2008 and a tax benefit from certain appreciated 
securities contributed to the BOKF Charitable Foundation in 2008.  Income tax expense for 2008 would have been $71 
million or 34% of book taxable income excluding these items.      

Net deferred tax assets totaled $58 million at December 31, 2010 and $107 million at December 31, 2009.  The decrease 
was due primarily to the tax effect of unrealized gains on available for sale securities  We have evaluated the recoverability 
of our net deferred tax asset based on taxes previously paid in net loss carry-back periods and other factors and determined 
that no valuation allowance was required.   

The allowance for uncertain tax positions totaled $12 million at December 31, 2010 and December 31, 2009.  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 for the fourth quarter of 2010 totaled $31.1 million or 34% of book taxable income compared to $24.8 
million or 37% of book taxable income for the fourth quarter of 2009.   

26  

 
 
 
 
 
 
 
 
 
 
 
 
Table 8  Selected Quarterly Financial Data 

(In thousands, except per share data) 

Fourth 

Third 

Second 

First 

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 other assets, net 
Gain (loss) on derivative contracts, net                           
Gain (loss) on securities, net                         
Total other-than-temporary impairment losses 
Portion of loss recognized in other comprehensive income 
Net impairment losses recognized in earnings 
Other operating expense                                  
Change in fair value of mortgage servicing rights                           
Income before taxes                              
Income tax expense                            
Net income before non-controlling interest 
Net income (loss) attributable to non-controlling interest 
Net income attributable to BOK Financial Corp. 

  $  197,148  
33,498 
163,650 
6,999 
156,651 
135,975 
15 
(7,286) 
(10,164) 
(4,768) 
1,859 
(6,627) 
203,472 
(25,111) 
90,203 
31,097 
59,106 
274 
  $  58,832 

2010 

  $  216,967  
36,252 
180,715 
20,000 
160,715 
136,936 
(1,331) 
4,626 
11,753 
(4,525) 
9,786 
(14,311) 
189,241 
15,924 
93,223 
29,935 
63,288 
(979) 
  $  64,267 

  $ 217,597 
35,484 
182,113 
36,040 
146,073 
128,168 
1,545 
7,272 
23,100 
(10,959) 
(8,313) 
(2,646) 
186,454 
19,458 
97,600 
32,042 
65,558 
2,036 
  $  63,522 

  $ 219,370 
36,796 
182,574 
42,100 
140,474 
115,315 
(1,390) 
(341) 
4,524 
(9,708) 
(5,483) 
(4,225) 
177,664 
(13,932) 
90,625 
30,283 
60,342 
209 
  $  60,133 

Earnings per share: 

Basic 
Diluted 

Average shares: 

Basic 
Diluted 

  $ 
  $ 

0.87 
0.87 

  $ 
  $ 

0.94 
0.94 

  $ 
  $ 

0.93 
0.93 

  $ 
  $ 

0.88 
0.88 

67,686 
67,899 

67,625 
67,765 

67,606 
67,881 

67,592 
67,790 

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 other assets, net 
Loss on derivative contracts, net                           
Gain on securities, net                         
Total other-than-temporary impairment losses 
Portion of loss recognized in other comprehensive income 
Net impairment losses recognized in earnings 
Other operating expense                                  
Change in fair value of mortgage servicing rights                          
Income before taxes                              
Income tax expense                            
Net income before non-controlling interest 
Net income attributable to non-controlling interest 
Net income attributable to BOK Financial Corp.                            

$ 224,411 
39,933 
184,478 
48,620 
135,858 
115,949 
(205) 
(370) 
7,277 
(67,390) 
(52,902) 
(14,488) 
181,722 
(5,285) 
67,584 
24,780 
42,804 
33 
$ 42,771 

2009 

$ 226,246 
45,785 
180,461 
55,120 
125,341 
119,956 
3,223 
(294) 
12,266 
(6,133) 
(2,752) 
(3,381) 
175,751 
2,981 
78,379 
24,772 
53,607 
2,947 
$ 50,660 

$ 230,685 
55,105 
175,580 
47,120 
128,460 
123,100 
973 
(1,037) 
6,471 
(1,263) 
279 
(1,542) 
183,635 
(7,865) 
80,655 
28,315 
52,340 
225 
$ 52,115 

$ 233,227 
63,382 
169,845 
45,040 
124,805 
121,507 
143 
(1,664) 
20,108 
(54,368) 
(39,366) 
(15,002) 
167,749 
(1,955) 
84,103 
28,838 
55,265 
233 
$ 55,032 

Earnings per share: 

Basic 
Diluted 

Average shares: 

Basic 
Diluted 

$   0.63 
$   0.63 

$   0.75 
$   0.75 

$   0.77 
$   0.77 

$   0.81 
$   0.81 

67,446 
67,600 

67,392 
67,514 

67,345 
67,448 

67,316 
67,387 

27  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 to 
small businesses, middle market and larger commercial customers.  Commercial banking also includes the TransFund 
network.  Consumer banking includes retail lending and deposit services and all mortgage banking activities.   Wealth 
management provides fiduciary services, brokerage and trading, private bank services and investment advisory services in 
all markets.  Wealth management also originates loans for high net worth clients. 

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.  Funds management and other also included the FDIC 
special assessment charge in 2009.  Regular FDIC insurance assessments are charged to the business units. 

We allocate resources and evaluate the performance of our lines of business after allocation of funds, certain indirect 
expenses, taxes based on statutory rates, actual net credit losses and capital costs. The cost of funds borrowed from the 
funds management unit by the operating lines of business is transfer priced at rates that approximate market for funds with 
similar duration.  Market is 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 based on applicable Federal 
Home Loan Bank advance rates.  Deposit accounts with indeterminate maturities, such as demand deposit accounts and 
interest-bearing transaction accounts, are transfer-priced at a rolling average based on expected duration of the accounts.  
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 our 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 9, net income attributed to our lines of business increased $56.5 million or 63% from the prior year.  
The increase in net income attributed to our lines of business was due primarily to a $32.1 million decrease in net loans 
charged off, a $36.5 million increase in other operating revenue, and a $15.1 million decrease in operating expenses 
attributed to the lines of business.  Net interest revenue attributed to our lines of business improved due to continued growth 
in average deposits generated by those lines of business and sold to our funds management unit.  Net income attributed to 
Funds management and other decreased compared to the prior year.   Less operating expenses were allocated to our lines of 
business due to a decrease in transaction volumes.   A decrease in gains on securities sold, net of other-than-temporary 
impairment charges, was partially offset by a decrease in the provision for credit losses.   

Table 9  Net Income by Line of Business 

(In thousands) 

Commercial banking 
Consumer banking 
Wealth management 
Subtotal 

Funds management and other 

Total 

Year ended December 31, 
2009 

2008 

2010 

$    81,842 
52,014 
12,642 
146,498 
100,256 
    $  246,754 

$  58,019 
20,987 
11,038 
90,044 
110,534 
$ 200,578 

$  78,264 
25,795 
31,329 
135,388 
17,844 
$ 153,232 

28  

 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
Commercial Banking 

Commercial banking contributed $81.8 million to consolidated net income for 2010, up from $58.0 million in 2009.  The 
increase in commercial banking net income was largely due to a $30.6 million decrease in net loans charged-off.  Net 
interest revenue increased $4.0 million and other operating revenue increased $7.0 million.  In addition, operating expenses 
decreased $9.3 million.  Net losses on repossessed assets increased to $19.4 million compared to $7.5 million in 2009.   

Table 10   Commercial Banking 

(Dollars in thousands) 

NIR (expense) from external sources 
NIR (expense) from internal sources 
Total net interest revenue 

  $ 

Year ended December 31, 
2009 
345,374 
(52,299) 
293,075 

  $ 

  $ 

2010 
341,770 
(44,685) 
297,085 

Other operating revenue 
Operating expense 
Net loans charged off 
Gains on financial instruments, net 
Loss on repossessed assets, net 
Income before taxes 
Federal and state income tax 

140,364 
213,916 
70,193 
– 
(19,392) 
133,948 
52,106 

133,359 
223,227 
100,749 
– 
(7,500) 
94,958 
36,939 

2008 
451,624 
(134,009) 
317,615 

106,9231 
216,403 
84,650 
4,689 
(82) 
128,092 
49,828 

Net income 

  $ 

81,842 

  $ 

58,019 

  $ 

78,264 

Average assets 
Average loans 
Average deposits 
Average invested capital   
Return on assets 
Return on invested capital 
Efficiency ratio 
Net charge-offs to average loans 

  $ 

8,973,559 
8,219,290 
6,171,409 
900,233 
0.91% 
9.09% 
48.90% 
0.85% 

  $  10,108,506 
9,184,600 
5,365,181 
950,684 
0.57% 
6.10% 
52.35% 
1.10% 

  $  11,044,919 
9,684,460 
4,559,658 
922,904 
0.71% 
8.48% 
50.97% 
0.87% 

1 

Includes net derivative credit losses of $41 million. 

Net interest revenue increased $4.0 million or 1% over 2009, primarily on increased average deposit balances attributed to 
our commercial banking unit.  An $806 million increase in average deposits increased net interest revenue by $6 million.  
The average outstanding balance of loans attributed to commercial banking decreased $965 million in 2010, which 
decreased net interest revenue by $24 million.  This decrease in net interest revenue was partially offset by loan spreads 
which improved 22 basis points, increasing net interest revenue by $16 million and a $6 million increase in loan fees 
earned. 

Other operating revenue increased $7.0 million or 5% over 2009.  The pre-tax equivalent of revenue from equipment leased 
to generate federal and state income tax credits increased $7.9 million over the prior year.  Transaction card revenues were 
up $3.3 million or 5% over 2009.  Service charges on commercial deposit accounts were down $5.0 million or 14% 
compared to the prior year as customers kept greater commercial deposit balances to increase their earnings credit, which 
provides a non-cash method for commercial customers to avoid incurring charges for deposit services based on account 
balance. 

Operating expenses declined $9.3 million or 4% compared to the prior year.  Personnel expenses were flat with the prior 
year.  Costs allocated to the commercial banking segment decreased $25.8 million primarily due to decreased lending 
volume.  Depreciation expenses related to assets leased to generate income tax credits increased $6.1 million.  Data 
processing expense increased $5.8 million on higher transaction volume.  Operating expenses of repossessed properties 
increased $4.5 million over the prior year.   

Average commercial banking division loans decreased $965 million or 11% from 2009.  See Loans section following for 
additional discussion of changes in commercial and commercial real estate loans which primarily attributed to the 
commercial banking segment.  Net commercial banking loans charged off decreased $30.6 million in 2010 to $70.2 million 
or 0.85% of average loans attributed to this line of business.   

Average deposits attributed to commercial banking were up $806 million or 15% over 2009.  Treasury services account 
balances increased $242 million or 17%.  Average deposit balances attributed to our energy customers increased $243 
million or 53% and average balances attributed to our commercial and industrial customers increased $137 million or 7%.   

29  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
Average balances attributed to our small business customers increased $104 million or 10% and average deposit balances 
of our commercial real estate customers increased $34 million or 14%.   

Consumer Banking 

Consumer banking services are provided through four primary distribution channels:  traditional branches, supermarket 
branches, the 24-hour ExpressBank call center and online internet banking.  We currently have 207 consumer banking 
locations, including branch banking locations and mortgage lending offices.  Our consumer banking locations are primarily 
distributed 104 in Oklahoma, 51 in Texas, 24 in New Mexico and 14 in Colorado.   

Consumer banking contributed $52.0 million to consolidated net income in 2010, up $31.0 million or 148% over 2009.  
Growth in net income was largely due to mortgage banking performance including a $6.5 million day-one gain from the 
purchase of rights to service $4.2 billion of residential mortgage loans on favorable terms in 2010.  Excluding this gain, net 
income from mortgage banking grew $20.4 million to $34.7 million.  Net income from mortgage loan servicing activities 
totaled $16.6 million, up $13.8 million.  Net income from mortgage loan production activities totaled $11.6 million, up 
slightly over 2009.  Net income from all other consumer banking activities increased $10.6 million.  Reduced operating 
expense attributed to consumer banking offset a decrease in deposit service charge income.   

Table 11  Consumer Banking 

(Dollars in thousands) 

NIR (expense) from external sources 
NIR (expense) from internal sources 
Total net interest revenue 

  $ 

Other operating revenue 
Operating expense 
Net loans charged off 
Increase (decrease) in fair value of 
mortgage servicing rights 

Gains (losses) on financial instruments, net 
Gains (losses) on repossessed assets, net 
Income before taxes 
Federal and state income tax 

Year ended December 31, 
2009 

2008 

2010 

  $ 

86,594 
47,360 
133,954 

203,840 
244,118 
23,057 
3,661 

11,756 
(907) 
85,129 
33,115 

  $ 

57,893 
73,565 
131,458 

182,895 
256,337 
24,366 
12,124 

(13,198) 
1,773 
34,349 
13,362 

32,076 
118,728 
150,804 

148,885 
219,024 
16,650 
(34,515) 

12,525 
193 
42,218 
16,423 

Net income 

  $ 

52,014 

  $ 

20,987 

  $ 

25,795 

Average assets 
Average loans 
Average deposits 
Average invested capital   
Return on assets 
Return on invested capital 
Efficiency ratio 
Net charge-offs to average loans 
Banking locations (period-end) 
Mortgage loan servicing portfolio1 
Mortgage loans funded for resale 

  $ 

6,244,728 
2,115,884 
6,130,525 
478,796 
0.83% 
10.86% 
72.27% 
1.09% 
207 
  $  12,059,241 
2,502,071 

  $ 

  $ 

6,149,597 
2,445,496 
6,048,200 
493,074 
0.34% 
4.26% 
81.54% 
1.00% 
202 
7,366,780 
2,828,260 

  $ 

  $ 

5,764,662 
2,507,161 
5,678,162 
469,737 
0.45% 
5.49% 
73.08% 
0.66% 
202 
5,983,824 
1,018,246 

Includes outstanding principal for loans serviced for affiliates. 

1 

Net interest revenue from consumer banking activities increased $2.5 million or 2% over 2009 primarily due to an $82 
million increase in average deposit balances sold to the funds management unit, partially offset by a $330 million decrease 
in average loan balances.    Average loan balances attributed to the consumer banking division decreased due primarily to 
the continued pay-downs of indirect automobile loans. The Company previously disclosed its decision to exit the indirect 
automobile loan business in the first quarter of 2009.   

Other operating revenue increased $20.9 million or 11% over 2009 primarily due to increased mortgage banking revenue.  
Revenue from originating and marketing mortgage loans increased $4.3 million due to increased gains on loans sold.  
Mortgage servicing revenue increased $18.2 million primarily due to the purchase of $4.2 billion of residential mortgage 
loan servicing rights in the first quarter of 2010.  Transaction card revenue was up $3.5 million or 11% over the prior year 
due primarily due higher transaction volumes.  Deposit service charges were down $7.0 million or 9% compared to the 
prior year primarily due to lower overdraft fees as a result of change in banking regulation that became effective in the third 
quarter of 2010.     

30  

 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Operating expenses decreased $12.2 million or 5% compared to 2009 primarily due to a $19.2 million decrease in corporate 
expenses allocated to the consumer banking division, offset by increases in other operating expenses. 

Net loans charged off by the consumer banking unit decreased $1.3 million from the prior year to $23.1 million or 1.09% of 
average loans attributed to the consumer banking division.  Net consumer banking charge-offs include residential mortgage 
loans that are retained by the Company, indirect automobile loans, overdrawn deposit accounts and other direct consumer 
loans.   

Average consumer deposits increased $82 million or 1% over 2009.  The average balance of interest-bearing transaction 
accounts were up $339 million or 14% and the average balance of demand deposit accounts increased $83 million or 11%.  
Higher-costing average time deposit balances decreased $355 million from the prior year.  Movement of funds among the 
various types of consumer deposits was largely based on interest rates and product features offered. 

Our Consumer Banking division originates, markets and services conventional and government-sponsored mortgage loans 
for all of our geographical markets.  During 2010, we funded $2.8 billion of mortgage loans compared to $3.0 billion in 
2009.  Approximately 44% of our mortgage loans funded were in the Oklahoma market, 14% in the Colorado market, 13% 
in the Texas market and 13% in the New Mexico market.  Revenue from mortgage loan origination and marketing activities 
totaled $49.4 million in 2010 and $45.0 million in 2009.  As of December 31, 2010, we also service $12.1 billion of 
mortgage loans, including $796 million residential mortgage loans retained by the Company.  Approximately 95% of the 
mortgage loans serviced was to borrowers in our primary geographical market areas.  Mortgage loan servicing revenue 
totaled $38 million in 2010 compared to $20 million in 2009.  The increase in mortgage servicing revenue was primarily 
due to the mortgage servicing rights purchased in the first quarter of 2010. 

Excluding the $11.8 million pre-tax day-one gain on the purchase of mortgage servicing rights during 2010, changes in fair 
value of our mortgage loan servicing rights, net of securities and derivative contracts held as an economic hedge, increased 
consumer banking pre-tax net income by $3.6 million in 2010 and decreased pre-tax net income by $1.1 million in 2009.  
Changes in the fair value of mortgage servicing rights and securities and derivative contracts held as an economic hedge are 
due to movements in interest rates, actual and anticipated loan prepayments speeds and related factors.  Net interest revenue 
on mortgage trading securities totaled $19.0 million for 2010 compared to $13.4 million for 2009. 

31  

 
 
 
 
  
 
 
Wealth Management 

The Wealth Management division contributed $12.6 million to net income in 2010, up $1.6 million or 15% over 2009.  The 
increase in net income was due primarily to an increase in retail brokerage and trust fees, partially offset by higher 
personnel costs.   

Table 12   Wealth Management 

(Dollars in thousands) 

Year ended December 31, 
2009 

2008 

2010 

NIR (expense) from external sources 
NIR (expense) from internal sources 
Total net interest revenue 

  $ 

32,634    $ 
11,913 
44,547 

  $ 

25,899 
18,746 
44,645 

Other operating revenue 
Operating expense 
Net loans charged off 
Gains (losses) on financial instruments, net 
Income before taxes 
Federal and state income tax 

164,942 
177,952 
11,128 
282 
20,691 
8,049 

156,360 
171,540 
11,399 
– 
18,066 
7,028 

12,617 
32,853 
45,470 

156,133 
149,960 
361 
(7) 
51,275 
19,946 

Net income 

  $ 

12,642    $ 

11,038 

  $ 

31,329 

Average assets 
Average loans 
Average deposits 
Average invested capital   
Return on assets 
Return on invested capital 
Efficiency ratio 
Net charge-offs to average loans 
Trust assets 
Trust assets for which BOKF has sole or joint 

  $ 

3,503,370    $ 
1,066,714 
3,414,407 
170,385 
0.36%
7.42%
84.95%
1.04%

3,032,007 
1,059,342 
2,958,549 
160,276 
0.36% 
6.89% 
85.34% 
1.08% 
  $  32,751,501    $  30,385,365 

  $ 

2,193,386 
933,020 
2,100,237 
141,555 
1.43% 
22.13% 
74.38% 
0.04% 
  $  30,454,512 

discretionary authority 
Non-managed trust assets 
Assets held in safekeeping 

11,805,418     
13,392,334     
7,553,749     

10,847,143 
12,339,059 
7,199,163 

11,476,059 
11,258,475 
7,719,978 

Net interest revenue was flat with the prior year.  The yield on securities and loans declined compared to the prior year, 
mostly offset by the benefit of an increase in average deposits which were sold to the funds management unit.   

Other operating revenue increased $8.6 million or 5% over the prior year.  Retail brokerage fees increased $5.4 million or 
26% and trust fees were up $2.7 million or 4% primarily due to increases in the fair value of trust assets.   

Other operating revenue includes fees earned from state and municipal bond underwriting and financial advisory services, 
primarily in the Oklahoma and Texas markets.  The wealth management division participated in 215 underwritings that 
totaled approximately $5.4 billion during 2010.  Our interest in these underwritings totaled approximately $1.3 billion. 

Operating expenses increased $6.4 million or 4% over 2009.  Personnel expense was up $8.5 million or 8% due primarily 
to increased incentive compensation costs and increased headcount.  Commissions related to brokerage and trading revenue 
increased $3.6 million and regular compensation expense increased $2.8 million or 5%.   

Growth in average assets was largely due an increase in wealth management deposits which are sold to the funds 
management unit.  Average deposits attributed to the wealth management division increased $456 million over the prior 
year included a $536 million increase in the average balance of interest bearing transaction accounts and a $56 million 
increase in average demand deposit account balances, offset by a $135 million decrease in average time deposit balances.   

Average loans by the wealth management division grew $7.4 million or 1% over the prior year to $1.1 billion at December 
31, 2010.  Net loans charged off in 2010 decreased by 2% form the prior year to $11.1 million.   

32  

 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
 
 
 
 
 
 
 
 
Geographic Market Distribution 

The Company also secondarily evaluates performance by primary geographic market.  Loans are generally attributed to 
geographic markets based on the location of the customer and may not reflect the location of the underlying collateral.  
Brokered deposits and other wholesale funds are not attributed to a geographic market.  Funds management and other also 
include insignificant results of operations in locations outside our primary geographic regions. 

Table 13   Net Income by Geographic Region 

(In thousands) 

Oklahoma 
Texas 
New Mexico 
Arkansas 
Colorado 
Arizona 
Kansas/Missouri 
Subtotal 

Funds management and other 

Total 

Oklahoma Market 

Year ended December 31, 
2009 

2008 

2010 

  $  121,827 
29,295 
8,864 
3,949 
3,033 
(22,817) 
4,111 
148,262 
98,492 
  $  246,754 

  $  85,781 
18,140 
6,142 
10,630 
(7,811) 
(28,512) 
6,433 
90,803 
109,775 
  $  200,578 

  $  68,156 
42,874 
14,554 
9,390 
7,617 
(5,844) 
538 
137,285 
15,947 
  $  153,232 

Our Oklahoma offices are located primarily in the Tulsa and Oklahoma City metropolitan areas.  Oklahoma is a significant 
market to the Company, representing 50% of our average loans, 54% of our average deposits and 49% of our consolidated 
net income.  In addition, all of our mortgage servicing activity and 76% of our trust assets are attributed to the Oklahoma 
market. 

Table 14   Oklahoma 
                (Dollars in thousands) 

Net interest revenue 

  $ 

Year ended December 31, 
2009 
235,591 

  $ 

  $ 

2010 
244,491 

Other operating revenue 
Operating expense 
Net loans charged off 
Increase (decrease) in fair value of 
mortgage servicing rights 

Gains (losses) on financial instruments, net 
Gains (losses) on repossessed assets, net 
Income before taxes 
Federal and state income tax 

330,260 
348,168 
41,357 

3,661 
12,038 
(1,535) 
199,390 
77,563 

316,541 
374,860 
35,762 

12,124 
(13,198) 
(42) 
140,394 
54,613 

2008 
245,328 

280,323 
348,677 
48,646 

(34,515) 
17,207 
528 
111,548 
43,392 

Net income 

  $ 

121,827 

  $ 

85,781 

  $ 

68,156 

Average assets 
Average loans 
Average deposits 
Average invested capital   

Return on assets 
Return on invested capital 
Efficiency ratio 
Net charge-offs to average loans 

  $ 

  $ 

  $ 

9,771,256 
5,441,823 
8,782,318 
530,688 

1.25% 
22.96% 
60.58% 
0.76% 

8,841,130 
6,086,505 
7,888,821 
538,015 

0.97% 
15.94% 
67.89% 
0.59% 

8,105,136 
6,425,918 
6,780,539 
535,391 

0.84% 
12.73% 
66.33% 
0.76% 

Net income generated in the Oklahoma market in 2010 grew $36.0 million or 42% over 2009.  Net interest revenue 
increased $8.9 million and other operating revenue increased $13.7 million.  Other operating expenses were down $26.7 
million compared to the prior year.  Net loans charged off increased $5.6 million to $41.4 million or 0.76% of average 
loans attributed to the Oklahoma market.  Excluding the $11.8 million pre-tax day-one gain on the purchase of mortgage 
servicing rights during 2010, changes in fair value of our mortgage loan servicing rights, net of securities and derivative  

33  

 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
contracts held as an economic hedge, increased pre-tax net income by $3.6 million in 2010 and decreased pre-tax net 
income by $1.1 million in 2009.   

Net interest revenue increased $8.9 million or 4% over 2009.  Net interest revenue increased from improved loan spreads 
and an $893 million increase in average deposit balances attributed to the Oklahoma market.  Average loans attributed to 
the Oklahoma market decreased $645 million from 2009.   

Other operating revenue increased $13.7 million or 4% over 2009, primarily due to an $18.2 million increase in mortgage 
servicing revenue, partially offset by a $9.0 million decrease in deposit fees due to lower overdraft fees as a result of 
change in banking regulation that became effective in the third quarter of 2010.    The pre-tax equivalent of revenue from 
equipment leased to generate federal and state income tax credits increased $8.9 million over the prior year. 

Other operating expenses decreased $26.7 million compared to the prior year, primarily due to a decrease in corporate 
expenses allocated to the Oklahoma market, partially offset by higher personnel costs and data processing expenses on 
higher transaction volumes.  Depreciation expense related to equipment leasing increased $4.9 million.  Foreclosure 
expenses and expenses related to repossessed property also increased over the prior year. 

Average deposits in the Oklahoma market increased $893 million or 11% over 2009.  Commercial and wealth management 
units, including trust, broker/dealer and private banking increased over the prior year, partially offset by a slight decrease in 
consumer banking deposits. 

Texas Market 

Our Texas offices are located primarily in the Dallas, Fort Worth and Houston metropolitan areas.  Texas is our second 
largest market with 30% of our average loans, 24% of our average deposits and 8% of our consolidated net income for 
2010. 

Table 15   Texas 

(Dollars in thousands) 

Net interest revenue 

  $ 

Year ended December 31, 
2009 
134,951 

  $ 

  $ 

2010 
134,331 

Other operating revenue 
Operating expense 
Net loans charged off 
Gains (losses) on repossessed assets, net 
Income before taxes 
Federal and state income tax 

60,734 
130,679 
15,674 
(2,939) 
45,773 
16,478 

50,875 
132,533 
23,607 
(1,343) 
28,343 
10,203 

2008 
153,460 

45,087 
115,087 
16,588 
119 
66,991 
24,117 

Net income 

  $ 

29,295 

  $ 

18,140 

  $ 

42,874 

Average assets 
Average loans 
Average deposits 
Average invested capital   

Return on assets 
Return on invested capital 
Efficiency ratio 
Net charge-offs to average loans 

  $ 

  $ 

  $ 

4,479,989 
3,321,561 
3,901,367 
478,796 

0.65% 
6.12% 
66.99% 
0.47% 

4,167,282 
3,607,661 
3,701,415 
493,074 

0.44% 
3.68% 
71.32% 
0.65% 

3,906,728 
3,625,751 
3,222,986 
469,737 

1.10% 
9.13% 
57.96% 
0.46% 

Net income in the Texas market increased $11.2 million or 61% over 2009 primarily due to an increase in operating 
revenue and a decrease in net loans charged off.   

Net interest revenue was flat with the prior year.  Net interest revenue generated from a $200 million increase in average 
deposits balances attributed to the Texas market was offset by a $286 million decrease in the average balance of 
outstanding loans attributed to the Texas market.   

Other operating revenue increased $9.9 million or 19% over 2009.  Most fee income categories increased over 2009 
including a $2.9 million increase in transaction card revenue, a $2.4 million increase in retail brokerage fees, a $2.4 million 
increase investment banking revenue and a $2.1 million increase in trust fees.  Revenue related to our leasing business and 
mortgage origination attributed to the Texas market also increased.  Deposit service charges decreased $1.9 million 
primarily due to lower overdraft fees as a result of changes in banking regulations that became effective in the third quarter.   

34  

 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Operating expenses were down $1.9 million or 1% compared to the previous year.  Corporate expenses allocated to the 
Texas market decreased on lower loan volumes, partially offset by an increase in incentive compensation expense, expenses 
on repossessed property and data processing expense on higher transaction volume.   

Net loans charged-off totaled $15.7 million or 0.47% of average loans in 2010 compared to $23.6 million or 0.65% of 
average loans in 2009. 

Other Markets 

Net income attributed to our New Mexico market increased $2.7 million or 44% over 2009 to $8.9 million or 4% of 
consolidated net income.  Net interest income was flat with the prior year.  Net interest revenue earned on increased 
average deposit balances attributed to the New Mexico market was largely offset by a decrease in the average loan balances 
attributed to the New Mexico market.  Operating revenue increased over the prior year due primarily to higher mortgage 
revenues as a result of higher funding volumes and increased transaction card revenue, partially offset by lower overdraft 
fees.  Although we attribute all mortgage servicing to the Oklahoma market, the purchase of the rights to service $4.2 
billion of residential mortgage loans in the first quarter of 2010 gives us the ability to further develop relationships with 
approximately 34 thousand additional customers, primarily located in the New Mexico market.  Other operating expenses 
decreased due to lower corporate cost allocation to the New Mexico market.   

Net income for the Arkansas market totaled $3.9 million compared to $10.6 million in 2009.  Net interest revenue 
decreased $1.5 million due to a $79 million decrease in average loans.  The decrease in average loans in the Arkansas 
market was largely due to our decision to discontinue indirect automobile lending.  Average deposits attributed to the 
Arkansas market were up $40 million or 26% over 2009, primarily related to increases in commercial banking and wealth 
management deposit balances.  Consumer deposits increased over 2009 levels as well.  Other operating revenue increased 
$4.1 million or 11% over 2009, primarily on increased securities trading revenue at our Little Rock office.  Other operating 
expenses increased $10.0 million on higher incentive compensation costs related to securities trading activity and increased 
corporate cost allocations.  Net loans charged off increased to $6.7 million or 2.04% of average loans. 

Net income attributed to our Colorado market improved to $3.0 million in 2010, compared to a net loss of $7.8 million in 
2009.  Net loans charged off decreased $14.2 million compared to the prior year to $10.8 million or 1.41% of average 
loans.  Net interest income decreased primarily due to a $141 million decrease in average loans attributed to the Colorado 
market.  Other operating revenue increased $3.5 million primarily due to higher mortgage revenue and operating expenses 
decreased $2.0 million due primarily to lower corporate overhead allocations on reduced loan volume. 

The Arizona market’s performance continued to improve during 2010.  The net loss attributed to the Arizona market 
narrowed from $28.5 million in 2009 to $22.8 million in 2010.  Net loans charged off improved by $17.3 million to $22.4 
million or 4.29% of average loans attributed to the Arizona market.  Losses on repossessed assets increased $9.4 million 
over to the prior year.  Operating revenue increased $1.7 million over the prior year on higher mortgage revenue due to 
increased volume of originations and improved margins and an increase in transaction card revenue.  Net interest revenue 
and operating expenses also increased modestly over the prior year.  Average deposits grew steadily by $37 million or 20% 
over the prior year in commercial, consumer and wealth management deposits.  Average loans decreased $43 million or 
8%.  Period-end loan balances in the Arizona market are up $30 million or 6% since December 31, 2009.  Commercial 
loans increased $32 million or 16% while commercial real estate loans decreased $26 million or 12%.   

Consistent with plans when we first acquired Valley Commerce Bank in 2005, our objective is to focus on growth in 
commercial and small business lending in the Phoenix market.  We have expanded our commercial lending staff in this 
market and opened three new banking locations in 2009.  We have significantly scaled-back commercial real estate lending 
activities which were not contemplated in our initial expansion into this market.  During 2009, we exited the Tucson market 
which we first entered in 2006.  Losses incurred during 2010 and 2009 are largely due to commercial real estate lending.  
Assets attributed to the Arizona market include $16 million of goodwill that may be impaired in future periods if 
commercial and small business lending growth plans are unsuccessful. 

Net income attributed to the Kansas/Missouri market totaled $4.1 million compared to $6.4 million in the prior year.  Net 
interest revenue increased $1.5 million or 19% as a result of an $81 million increase in average deposit balances and 
average loans attributed to the Kansas/Missouri market decreased only 1% from the prior year.  Net loans charged off 
improved to 0.26% of average loans attributed to the Kansas/Missouri market.  Operating expenses increased $4.9 million 
due primarily to increased corporate expense allocations and personnel costs.   

35  

 
 
  
 
 
 
 
 
 
 
Table 16   New Mexico 
                (Dollars in thousands) 

Net interest revenue 

  $ 

32,639 

  $ 

32,775 

  $ 

39,673 

Year ended December 31, 
2009 

2008 

2010 

Other operating revenue 
Operating expense 
Net loans charged off 
Losses on repossessed assets, net 
Income before taxes 
Federal and state income tax 

Net income 

Average assets 
Average loans 
Average deposits 
Average invested capital   
Return on assets 
Return on invested capital 
Efficiency ratio 
Net charge-offs to average loans 

  $ 

$ 

28,007 
37,233 
6,152 
(2,754) 
14,507 
5,643 

23,959 
38,632 
7,125 
(925) 
10,052 
3,910 

23,788 
35,753 
3,883 
(5) 
23,820 
9,266 

8,864 

  $ 

6,142 

  $ 

14,554 

1,329,740 
720,339 
1,231,643 
83,999 
0.67% 
10.55% 
61.39% 
0.85% 

$ 

1,248,607 
810,867 
1,146,942 
85,750 
0.49% 
7.16% 
68.09% 
0.88% 

$ 

1,141,031 
841,353 
1,036,209 
86,401 
1.28% 
16.84% 
56.34% 
0.46% 

Table 17   Arkansas 
                (Dollars in thousands) 

Net interest revenue 

  $ 

10,223 

  $ 

11,741 

  $ 

11,784 

Year ended December 31, 
2009 

2008 

2010 

Other operating revenue 
Operating expense 
Net loans charged off 
Losses on repossessed assets, net 
Income before taxes 
Federal and state income tax 

Net income 

Average assets 
Average loans 
Average deposits 
Average invested capital   
Return on assets 
Return on invested capital 
Efficiency ratio 
Net charge-offs to average loans 

  $ 

$ 

41,258 
37,370 
6,734 
(914) 
6,463 
2,514 

37,119 
27,378 
3,665 
(419) 
17,398 
6,768 

29,104 
22,027 
3,250 
(242) 
15,369 
5,979 

3,949 

  $ 

10,630 

  $ 

9,390 

$ 

$ 

357,251 
330,200 
196,372 
23,886 
1.11% 
16.53% 
72.59% 
2.04% 

425,071 
409,339 
155,981 
24,460 
2.50% 
43.46% 
56.03% 
0.90% 

446,101 
434,339 
73,605 
23,415 
2.10% 
40.10% 
53.87% 
0.75% 

36  

 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 18   Colorado 
                 (Dollars in thousands) 

Net interest revenue 

  $ 

32,712 

  $ 

34,966 

  $ 

37,009 

Year ended December 31, 
2009 

2008 

2010 

Other operating revenue 
Operating expense 
Net loans charged off 
Losses on repossessed assets, net 
Income (loss) before taxes 
Federal and state income tax 

Net income (loss) 

Average assets 
Average loans 
Average deposits 
Average invested capital   
Return on assets 
Return on invested capital 
Efficiency ratio 
Net charge-offs to average loans 

  $ 

$ 

21,769 
37,994 
10,805 
(718) 
4,964 
1,931 

18,237 
40,032 
25,000 
(955) 
(12,784) 
(4,973) 

16,600 
32,997 
8,146 
– 
12,466 
4,849 

3,033 

  $ 

(7,811)    $ 

7,617 

1,219,529 
768,159 
1,146,016 
124,712 
0.25% 
2.43% 
69.74% 
1.41% 

$ 

$ 

1,217,498 
908,949 
1,137,893 
129,897 
(0.64)% 
(6.01)% 
75.24% 
2.75% 

1,138,363 
859,490 
1,058,816 
121,270 
0.67% 
6.28% 
61.55% 
0.95% 

Table 19   Arizona 
                (Dollars in thousands) 

Year ended December 31, 
2009 

2008 

2010 

Net interest revenue 

  $ 

11,792 

  $ 

11,174 

  $ 

18,608 

Other operating revenue 
Operating expense 
Net loans charged off 
Losses on repossessed assets, net 
Loss before taxes 
Federal and state income tax 

5,071 
20,378 
22,411 
(11,418) 
(37,344) 
(14,527) 

3,384 
19,445 
39,733 
(2,044) 
(46,664) 
(18,152) 

1,300 
15,143 
14,043 
(287) 
(9,565) 
(3,721) 

Net loss 

  $ 

(22,817)    $ 

(28,512)    $ 

(5,844) 

Average assets 
Average loans 
Average deposits 
Average invested capital   
Return on assets 
Return on invested capital 
Efficiency ratio 
Net charge-offs to average loans 

$ 

$ 

$ 

609,627 
522,200 
218,865 
65,717 
(3.74)% 
(34.72)% 
120.84% 
4.29% 

631,680 
564,730 
182,209 
71,436 
(4.51)% 
(39.91)% 
133.57% 
7.04% 

612,785 
589,363 
126,313 
65,468 
(0.95)% 
(8.93)% 
76.06% 
2.38% 

37  

 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 20   Kansas/Missouri 
                (Dollars in thousands) 

Net interest revenue 

  $ 

9,428 

  $ 

7,927 

  $ 

7,692 

Year ended December 31, 
2009 

2008 

2010 

Other operating revenue 
Operating expense 
Net loans charged off 
Losses on repossessed assets, net 
Income before taxes 
Federal and state income tax 

Net income 

Average assets 
Average loans 
Average deposits 
Average invested capital   
Return on assets 
Return on invested capital 
Efficiency ratio 
Net charge-offs to average loans 

  $ 

$ 

19,386 
21,284 
781 
(21) 
6,728 
2,617 

19,876 
16,358 
917 
– 
10,528 
4,095 

13,456 
13,165 
7,103 
– 
880 
342 

4,111 

  $ 

6,433 

  $ 

538 

$ 

$ 

309,238 
297,606 
239,759 
24,026 
1.33% 
17.11% 
73.87% 
0.26% 

310,648 
299,861 
158,665 
20,795 
2.07% 
30.94% 
58.84% 
0.31% 

341,383 
338,047 
37,964 
18,087 
0.16% 
2.97% 
62.25% 
2.10% 

Assessment of Financial Condition 

Securities 

We maintain a securities portfolio to enhance profitability, support interest rate risk management strategies, provide 
liquidity and comply with regulatory requirements.  Securities are classified as held for investment, available for sale or 
trading.  See Note 2 to the consolidated financial statements for additional discussion of the securities portfolio. 

Investment (held-to-maturity) securities consist primarily of long-term, fixed-rate Oklahoma municipal bonds and Texas 
school construction bonds.  Substantially all of these bonds are general obligations of the issuer.  Approximately $82 
million of the Texas school construction bonds are also guaranteed by the Texas Permanent School Fund Guarantee 
Program.     At December 31, 2010, investment securities were carried at $340 million and had a fair value of $346 million.     

Available for sale securities, which may be sold prior to maturity, are carried at fair value.  Unrealized gains or losses, less 
deferred taxes, are recorded as accumulated other comprehensive income in shareholders’ equity.  The amortized cost of 
available for sale securities totaled $9.1 billion at December 31, 2010, up $252 million over December 31, 2009.  At 
December 31, 2010, residential mortgage-backed securities represented 97% of total available for sale securities.  We hold 
no securities backed by sub-prime mortgage loans, collateralized debt obligations or collateralized commercial real estate 
loans.  A summary of our securities follows in Table 21.  Additional details regarding securities concentrations appears in 
Note 2 to the Consolidated Financial Statements. 

38  

 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 21   Securities 
                (Dollars in thousands) 

Investment: 

Municipal and other tax-exempt 
Other debt securities 

Total 

Available for sale: 
U.S. Treasury 
Municipal and other tax-exempt 
Mortgage-backed securities: 

U.S. agencies 
Private issue 

Total mortgage-backed securities 

Other debt securities 
Federal Reserve Banks 
Federal Home Loan Banks 
Perpetual preferred stocks 
Other equity securities and mutual 

funds 
Total 
Mortgage trading: 

Mortgage-backed U.S. agency 

securities 

2010 

December 31, 
2009 

2008 

Amortized 
Cost 

Fair 
Value 

Amortized 
Cost 

Fair 
Value 

Amortized 
Cost 

Fair 
Value 

  $  184,898 
154,655 
339,553 

  $ 

  $  188,577 
157,528 
346,105 

  $ 

  $  232,568 
7,837 
240,405 

  $ 

  $ 

– 
72,190 

  $ 

– 
72,942 

  $ 

6,998 
61,268 

8,193,704 
714,431 
8,908,135 
6,401 
33,424 
42,207 
19,511 

8,446,908 
644,210 
9,091,118 
6,401 
33,424 
42,207 
22,114 

7,645,817 
961,378 
8,607,195 
17,174 
32,526 
78,999 
19,224 

  $ 

  $ 

  $ 

238,847 
7,857 
246,704 

  $  235,791 
6,553 
242,344 

  $ 

7,020 
62,201 

  $ 

6,987 
19,537 

7,809,328 
792,362 
8,601,690 
17,147 
32,526 
78,999 
22,275 

4,900,895 
1,636,934 
6,537,829 
37 
32,380 
61,760 
32,472 

  $ 

  $ 

  $ 

239,178 
6,591 
245,769 

7,126 
20,163 

4,972,928 
1,241,238 
6,214,166 
36 
32,380 
61,760 
21,701 

29,181 
  $  9,111,049 

43,046 
  $  9,311,252 

35,414 
  $  8,858,798 

50,165 
  $  8,872,023 

31,421 
  $  6,722,423 

34,119 
  $  6,391,451 

$ 

433,663 

  $ 

428,021 

  $ 

288,076 

  $ 

285,950 

  $ 

386,571 

  $ 

399,211 

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.  Current interest rates are historically low and prices 
for residential mortgage-backed securities are historically high resulting in very low effective durations.  Our best estimate 
of the duration of the residential mortgage-backed securities portfolio at December 31, 2010 is 2.2 years.  Management 
estimates that the duration would extend to approximately 3.5 years assuming an immediate 200 basis point upward rate 
shock.  The estimated duration contracts to 0.8 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 either partially or fully guaranteed.  At December 31, 2010, approximately $8.2 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 $8.4 billion at December 31, 2010.   

We also hold amortized cost of $714 million in residential mortgage-backed securities privately issued by publicly-owned 
financial institutions, a decline of $247 million from December 31, 2009.  The decline was primarily due to $219 million of 
cash received and $28 million of other-than-temporary impairment losses charged against earnings during 2010.  The fair 
value of our portfolio of privately issued residential mortgage-backed securities totaled $644 million at December 31, 2010.  
The net unrealized losses on our portfolio of privately issued residential mortgage-backed securities decreased for the 
eighth consecutive quarter from $396 million at December 31, 2008 to $70 million at December 31, 2010.    

The amortized cost of our portfolio of privately issued residential mortgage-backed securities included $494 million of 
Jumbo-A mortgage loans and $220 million of Alt-A mortgage loans.  Jumbo-A mortgage loans generally meet government 
agency 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.  Credit risk on securities backed by 
Alt-A loans is mitigated by investment in senior tranches with additional collateral support.  None of these securities are 
backed by sub-prime mortgage loans, collateralized debt obligations or collateralized loan obligations.  Approximately 88% 
of the Alt-A residential mortgage-backed securities were issued with credit support from additional layers of loss-absorbing 
subordinated tranches including 100% of our Alt-A residential mortgage-backed securities originated in 2007 and 2006.  
Approximately 82% of our Alt-A residential mortgage-backed securities represented pools of fixed-rate mortgage loans.  
None of the adjustable rate mortgages are payment option adjustable rate mortgages (“ARMs”).  Approximately 27% of our 
Jumbo-A residential mortgage-backed securities represents pools of fixed rate mortgage loans and none of the adjustable 
rate mortgages are payment option ARMs.    

Privately issued mortgage-backed securities with a total amortized cost of $522 million were rated below investment grade 
at December 31, 2010 by at least one of the nationally-recognized rating agencies.  The unrealized loss on the below  

39  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
investment grade residential mortgage-backed securities totaled $62 million at December 31, 2010, a $10 million decrease 
during 2010.   

Our portfolio of available for sale securities also included preferred stocks issued by six financial institutions.  These 
preferred stocks have certain debt-like features such as a quarterly dividend based on LIBOR.  However, the issuers of 
these stocks have no obligation to redeem them.  At December 31, 2010, these stocks have an aggregate carrying value of 
$20 million and an aggregate fair value of $22 million.   

We also have $42 million of stocks in Federal Home Loan Banks primarily in Topeka, Kansas, and Dallas, Texas at 
December 31, 2010. 

The aggregate gross amount of unrealized losses on available for sale securities totaled $93 million at December 31, 2010.  
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.  Other-than-temporary impairment 
charges of $27.8 million were recognized in earnings in 2010 on certain privately issued residential mortgage-backed 
securities and other equity securities we do not intend to sell.   

Certain government agency issued residential mortgage-backed securities, identified as mortgage trading securities, have 
been designated as economic hedges of mortgage servicing rights.  These securities are carried 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.   

Bank-Owned Life Insurance 

We have approximately $255 million invested in bank-owned life insurance at December 31, 2010.  These investments are 
expected to provide a long-term source of earnings to support existing employee benefit programs.  Approximately $224 
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 the 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, 2010, cash surrender value represented by the underlying fair value of 
investments held in separate accounts was approximately $239 million.  As the underlying fair value of the investments 
held in a separate account at December 31, 2010 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 highly-rated, domestic financial institution.  
The remaining cash surrender value of $31 million primarily represented the cash surrender value of policies held in the 
general accounts and amounts due from various insurance companies. 

40  

 
 
 
    
 
 
 
 
Loans 

The aggregate loan portfolio before allowance for loan losses totaled $10.6 billion at December 31, 2010, a $637 million or 
6% decrease since December 31, 2009.   

Table 22  Loans 
                 (In thousands) 

Commercial: 
Energy 
Services 
Wholesale/retail 
Manufacturing 
Healthcare 
Integrated food services 
Other commercial and industrial 

Total commercial 

Commercial real estate: 

Construction and land development 
Retail 
Office 
Multifamily 
Industrial 
Other commercial real estate 

Total commercial real estate 

Residential mortgage: 

Permanent mortgage 
Home equity 

Total residential mortgage 

Consumer: 

Indirect automobile 
Other consumer 

Total consumer 

Total 

2010 

2009 

December 31, 
2008 

2007 

2006 

  $1,711,409 
1,580,921 
1,010,246 
325,191 
809,625 
204,283 
292,321 
5,933,996 

  $1,911,994 
1,807,824 
921,830 
404,061 
792,538 
160,549 
209,044 
6,207,840 

  $2,311,813 
2,038,451 
1,165,099 
497,957 
777,154 
197,629 
423,500 
7,411,603 

  $1,954,967 
1,733,569 
1,084,379 
493,185 
685,131 
240,469 
569,884 
6,761,584 

  $1,763,180 
1,555,141 
932,531 
609,571 
602,273 
321,380 
424,808 
6,208,884 

447,864 
405,540 
457,450 
369,242 
182,093 
415,161 
2,277,350 

1,274,944 
553,304 
1,828,248 

645,295 
423,260 
463,316 
360,436 
146,707 
452,420 
2,491,434 

926,226 
371,228 
459,357 
316,596 
149,367 
478,474 
2,701,248 

1,007,414 
423,118 
421,163 
214,388 
154,255 
502,746 
2,723,084 

889,925 
374,294 
420,914 
239,000 
146,406 
376,001 
2,446,540 

1,303,340 
490,282 
1,793,622 

1,273,275 
479,299 
1,752,574 

1,092,382 
442,223 
1,534,605 

867,748 
388,511 
1,256,259 

239,576 
363,866 

454,508 
332,294 

692,615 
317,966 

625,203 
296,094 

465,622 
273,873 

603,442 
  $10,643,036 

786,802 
  $11,279,698 

1,010,581 
  $12,876,006 

921,297 
  $11,940,570 

739,495 
  $10,651,178 

The decline in outstanding loan balances was largely centered on energy loans, construction and land development loans 
and indirect automobile loans.  The combined outstanding balances of these three categories of the loan portfolio decreased 
$613 million.  Generally, outstanding loan commitments have increased since the end of 2009.  A breakdown of the loan 
portfolio by geographical market follows on Table 23 along with discussion of changes in the balances by portfolio and 
geography. 

41  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 23  Loans by Principal Market Area 
               (In thousands) 

Oklahoma: 

Commercial 
Commercial real estate 
Residential mortgage 
Consumer 

Total Oklahoma 

Texas: 

Commercial 
Commercial real estate 
Residential mortgage 
Consumer 

Total Texas 

New Mexico: 
Commercial 
Commercial real estate 
Residential mortgage 
Consumer 

Total New Mexico 

Arkansas: 

Commercial 
Commercial real estate 
Residential mortgage 
Consumer 

Total Arkansas 

Colorado: 

Commercial 
Commercial real estate 
Residential mortgage 
Consumer 

Total Colorado 

Arizona: 

Commercial 
Commercial real estate 
Residential mortgage 
Consumer 

Total Arizona 

Kansas/Missouri: 
Commercial 
Commercial real estate 
Residential mortgage 
Consumer 

Total Kansas/Missouri 
Total BOK Financial loans 

Commercial 

2010 

2009 

December 31, 
2008 

2007 

2006 

  $ 2,581,082 
726,409 
1,253,466 
336,492 
  $ 4,897,449 

  $ 2,649,252 
820,578 
1,228,822 
451,829 
  $ 5,150,481 

  $ 3,356,520 
843,576 
1,196,924 
579,809 
  $ 5,976,829 

  $ 3,224,013 
885,866 
1,080,483 
576,070 
  $ 5,766,432 

  $ 3,186,085 
979,251 
896,567 
512,032 
  $ 5,573,935 

  $ 1,888,635 
686,956 
297,027 
146,986 
  $ 3,019,604 

  $ 2,017,081 
735,338 
313,113 
170,062 
  $ 3,235,594 

  $ 2,353,860 
825,769 
315,438 
212,820 
  $ 3,707,887 

  $ 1,997,659 
830,980 
278,842 
142,958 
  $ 3,250,439 

  $ 1,722,627 
670,635 
213,801 
95,652 
  $ 2,702,715 

  $  279,432 
314,781 
88,392 
19,583 
  $  702,188 

  $  341,802 
305,061 
86,415 
17,473 
  $  750,751 

  $  418,732 
286,574 
98,018 
18,616 
  $  821,940 

  $  473,262 
252,884 
84,336 
16,105 
  $  826,587 

  $  411,272 
257,079 
75,159 
13,256 
  $  756,766 

  $ 

84,775 
116,989 
13,155 
72,787 
  $  287,706 

  $  103,443 
132,436 
16,849 
124,265 
  $  376,993 

  $  103,446 
134,015 
16,875 
175,647 
  $  429,983 

  $  106,328 
124,317 
16,393 
163,626 
  $  410,664 

  $ 

95,483 
94,395 
23,076 
86,017 
  $  298,971 

  $  470,500 
197,180 
72,310 
21,409 
  $  761,399 

  $  545,724 
239,970 
66,504 
17,362 
  $  869,560 

  $  660,546 
261,820 
53,875 
16,141 
  $  992,382 

  $  490,373 
252,537 
26,556 
16,457 
  $  785,923 

  $  451,046 
193,747 
15,812 
26,591 
  $  687,196 

  $  231,117 
201,018 
89,245 
3,445 
  $  524,825 

  $  199,143 
227,249 
65,047 
3,461 
  $  494,900 

  $  211,356 
319,525 
62,123 
6,075 
  $  599,079 

  $  157,341 
342,673 
46,269 
5,522 
  $  551,805 

  $ 

96,453 
207,035 
31,280 
5,947 
  $  340,715 

  $  398,455 
34,017 
14,653 
2,740 
  $  449,865 
  $10,643,036 

  $  351,395 
30,802 
16,872 
2,350 
  $  401,419 
  $11,279,698 

  $  307,143 
29,969 
9,321 
1,473 
  $  347,906 
  $12,876,006 

  $  312,608 
33,827 
1,726 
559 
  $  348,720 
  $11,940,570 

  $  245,918 
44,398 
564 
– 
  $  290,880 
  $10,651,178 

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. 

The commercial loan portfolio decreased $274 million during 2010 to $5.9 billion at December 31, 2010.  Generally, 
commercial loan origination activity has slowed to less than amounts necessary to offset normal repayment trends in the 
portfolio.  In general, loan demand has softened due to lower working capital needs and less capital project spending by our 
customers.   

42  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The commercial sector of our loan portfolio is distributed as follows in Table 24. 

Table 24  Commercial Loans by Principal Market Area 
               (In thousands) 

Oklahoma 

Texas 

New 
Mexico 

Arkansas 

Colorado 

Arizona 

Kansas/ 
Missouri 

Total 

  Energy 
  Services    
  Wholesale/retail 
  Manufacturing 
  Healthcare    
  Integrated food 
services    

  Other commercial  
     and industrial 
Total commercial 

$  887,354 
484,602 
422,112 
191,051 
490,401 

$  622,048 
487,383 
410,231 
71,569 
213,437 

$      157 
171,744 
45,536 
17,394 
8,319 

   $  4,326 
20,152 
34,277 
1,357 
5,661 

$197,524 
188,317 
17,436 
16,040 
45,645 

$         – 
113,837 
53,836 
20,725 
22,565 

      $   

– 
114,886 
26,818 
7,055 
23,597 

  $1,711,409 
1,580,921 
1,010,246 
325,191 
809,625 

16,280 

9,617 

– 

270 

– 

– 

178,116 

204,283 

89,282 

74,350 

36,282 

18,732 

5,538 

20,154 

47,983 

292,321 

loans 

$2,581,082 

$1,888,635 

$279,432 

$84,775 

$470,500 

$231,117 

$398,455 

$5,933,996 

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 the largest 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. 

Energy loans totaled $1.7 billion or 16% of total loans.  Outstanding energy loans decreased $201 million during 2010 
primarily due to lower customer loan demand due primarily to cash flow available to this sector and a slower pace of 
capital project spending based on generally stable energy prices during 2010.  For most of 2010, low commodity prices 
persisted which led to curtailed exploration and production of oil and gas reserves and reduced borrowing capacity based 
upon collateral values.  Although outstanding balances are down from 2009, unfunded loan commitments to energy 
customers were up $100 million to $2.0 billion at December 31, 2010. 

Energy loans to oil and gas producers totaled approximately $1.5 billion, down $111 million from the prior year.  
Approximately 50% of the committed production loans are secured by properties primarily producing oil and 50% are 
secured by properties primarily producing natural gas.  Loans to borrowers that provide services to the energy industry 
decreased approximately $44 million from the prior year to $33 million and loans to borrowers engaged in wholesale or 
retail energy sales decreased approximately $53 million to $187 million at December 31, 2010.  Loans to borrowers that 
manufacture equipment for the energy industry increased 3% over the prior year to $27 million.  We did not experience a 
significant, direct impact on our energy loan portfolio from the moratorium on offshore drilling activities during 2010.   

The services sector of the loan portfolio totaled $1.6 billion or 15% of total loans and consists of a large number of loans to a variety of 
businesses including communications, educational, gaming, and transportation services.  Service sector loans decreased $227 million 
primarily due to soft loan demand as a result of current economic conditions.  Approximately $1.0 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.  Loans in this sector may also 
be secured by personal guarantees of the owners or related parties. 

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, 2010, the outstanding principal balance of these loans totaled 
$1.4 billion.  Substantially all of these loans are to borrowers with local market relationships.  We serve as the agent lender 
in approximately 19% of our shared national credits, based on dollars committed.  We hold shared national 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, grading of shared national credits is provided 
annually by banking regulators.  Risk grading provided by the regulators in the third quarter of 2010 did not differ 
significantly from management’s assessment. 

43  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 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 or 
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 $2.3 billion or 21% of the loan portfolio at December 31, 2010.  Over the past five 
years, the percentage of commercial real estate loans to our total loan portfolio ranged from 20% to 23%.   The outstanding 
balance of commercial real estate loans decreased $214 million from the previous year.  The commercial real estate sector 
of our loan portfolio is distributed as follows in Table 25. 

Table 25  Commercial Real Estate Loans by Principal Market Area 
               (In thousands) 

Construction and 

  land development   

 Retail 
 Office 
 Multifamily         
 Industrial 
 Other real estate 

loans   

Total commercial  
real estate loans 

Oklahoma 

Texas 

$148,458 
145,640 
94,101 
113,147 
68,889 

$ 86,563 
122,560 
168,582 
135,236 
72,896 

New 
Mexico 

$ 62,847 
49,385 
90,661 
21,148 
26,967 

Arkansas 

Colorado 

Arizona 

Kansas/ 
Missouri 

Total 

$ 16,852 
18,025 
16,035 
46,195 
169 

$ 92,918 
7,326 
59,919 
7,213 
1,083 

$ 35,280 
50,913 
28,075 
39,831 
12,021 

$ 4,946 
11,691 
77 
6,472 
68 

$ 447,864 
405,540 
457,450 
369,242 
182,093 

156,174 

101,119 

63,773 

19,713 

28,721 

34,898 

10,763 

415,161 

$726,409 

$686,956 

$314,781 

$116,989 

$197,180 

$201,018 

$34,017 

$2,277,350 

Construction and land development loans, which consist primarily of residential construction properties and developed 
building lots, decreased $197 million during the year to $448 million at December 31, 2010 primarily due to payments.  In 
addition, $28 million of construction and development loans were transferred to other real estate owned and $21 million 
were charged off.  This sector of the loan portfolio is expected to continue to decrease as construction projects currently in 
process are completed.   

Residential Mortgage and Consumer 

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.  Consumer loans include direct loans secured by and for the purchase of automobiles, recreational and 
marine equipment as well as other unsecured loans.  Consumer loans also include indirect automobile loans made through 
primary dealers.  Residential mortgage and consumer 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 $1.8 billion, up $35 million or 2% since December 31, 2009.  Permanent 1-4 family 
mortgage loans decreased $28 million and home equity loans increased $63 million.  In general, we sell the majority of our 
conforming fixed-rate loan originations in the secondary market and retain the majority of our non-conforming and 
adjustable-rate mortgage loans.  Low interest rates increased demand to refinance these mortgage loans into long-term fixed 
rate loans.  Generally, we do not offer this type of loan because of excessive future interest rate risk.   

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.   

The permanent mortgage loan portfolio is 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 or certain professionals.  The aggregate outstanding balance of loans in these programs at December 31, 2010 is 
$1.2 billion.  Jumbo loans may be fixed or variable rate and are fully amortizing.  Jumbo loans generally conform to 
government sponsored entity standards, with exception 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 ratios (“LTV”) are tiered from 60% to 100%, depending on the market.  Special mortgage programs  

44  

 
 
 
 
 
 
   
 
 
 
 
include fixed and variable rate fully amortizing loans tailored to the needs of certain health-care professionals.  Variable 
rate loans are fully indexed at origination and may have fixed rates for three to ten years, then adjust annually thereafter.   

Approximately $96 million or 8% of permanent mortgage loans at December 31, 2010 consist of first lien, fixed rate 
residential mortgage loans originated under various community development programs, down from $110 million at 
December 31, 2009.  These loans were underwritten to standards approved by various U.S. government agencies under 
these programs and include full documentation.  However, these loans do have a higher risk of delinquency and losses 
given default than traditional residential mortgage loans.  The initial maximum LTV of loans in these programs was 103%. 

Home equity loans totaled $553 thousand at December 31, 2010.  These loans are generally 1st or 2nd lien loans with a 
maximum LTV of 90%, including consideration of any superior liens.  These loans 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 $200 
thousand. 

The composition of residential mortgage and consumer loans at December 31, 2010 is as follows in Table 26. 

 Table 26  Residential Mortgage and Consumer Loans by Principal Market Area 
                (In thousands) 

Oklahoma 

Texas 

New Mexico  Arkansas  Colorado  Arizona 

Kansas/ 
Missouri 

Total 

Residential mortgage: 

   Permanent mortgage 

$  913,827 

$205,457 

$13,400 

$ 8,278 

$50,494 

$74,057 

$ 9,431 

$1,274,944 

   Home equity 
Total residential 
mortgage 

Consumer: 

339,639 

91,570 

74,992 

4,877 

21,816 

15,188 

5,222 

553,304 

$1,253,466 

$297,027 

$88,392 

$13,155 

$72,310 

$89,245 

$14,653 

$1,828,248 

   Indirect automobile 

$136,772 

$ 36,848 

$        – 

$65,956 

$        – 

   Other consumer     

199,720 

110,138 

19,583 

6,831 

21,409 

$      – 

3,445 

$      – 

2,740 

$239,576 

363,866 

Total consumer        

$336,492 

$146,986 

$19,583 

$72,787 

$21,409 

$3,445 

$2,740 

$603,442 

Indirect automobile loans decreased $215 million since December 31, 2009, primarily due to the previously-disclosed 
decision by the Company to exit the business in the first quarter of 2009 in favor of a customer-focused direct lending 
approach.   

Table 27  Loan Maturity and Interest Rate Sensitivity at December 31, 2010 
               (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 

Total 

  $  5,933,996 
    2,277,350 
  $  8,211,346 

  $  3,768,527 
    4,442,819 
  $  8,211,346 

Loan Commitments 

Remaining Maturities of Selected Loans 
1-5 Years 

After 5 Years 

Within 1 Year

  $ 1,613,841    $ 3,537,874 
1,090,016 

$    782,281 
  302,840 
$  4,627,890  $ 1,085,121 

884,494 
  $ 2,498,335 

  $  648,636    $ 2,454,197    $  665,694 
419,427 
  $ 2,498,335    $ 4,627,890    $ 1,085,121 

1,849,699 

2,173,693 

We enter into off-balance sheet arrangements in the normal course of business.  These arrangements included loan 
commitments which totaled $5.2 billion and standby letters of credit which totaled $535 million at December 31, 2010.  
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 $3.1 million of the outstanding standby letters of credit were issued on behalf of customers whose loans are 
nonperforming at December 31, 2010.    

45  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 28  Off-Balance Sheet Credit Commitments 
               (In thousands) 

2010 

2009 

2008 

2007 

2006 

As of December 31, 

Loan commitments 
Standby letters of credit 
Mortgage loans sold with recourse 

  $  5,193,545 
534,565 
289,021 

  $  5,001,338 
588,091 
330,963 

  $  5,015,660    $  5,345,736    $  5,318,257 
527,627 
329,713 

598,618 
391,188   

555,758 
392,534   

We also have off-balance sheet obligations related to certain community development residential mortgage loans sold with 
full or partial recourse as more fully described in Note 7 to the consolidated financial statements.  At December 31, 2010, 
the principal balance of loans sold subject to recourse obligations totaled $289 million.  Substantially all of these loans are 
to borrowers in our primary markets including $204 million to borrowers in Oklahoma, $30 million to borrowers in 
Arkansas, $17 million to borrowers in New Mexico, $15 million to borrowers in the Kansas/Missouri area and $13 million 
to borrowers in Texas.   

Under certain conditions, we also have an off-balance sheet obligation to repurchase residential mortgage loans sold to 
government sponsored entities through our mortgage banking activities.  As of December 31, 2010, less than 10% of the 
repurchase requests in 2010 have resulted in actual repurchases or indemnification by BOK Financial.  We have 
repurchased 11 loans for approximately $301 thousand from the agencies during 2010.  Losses incurred on these loans have 
been minimal.  At December 31, 2010, we have unresolved deficiency requests from the agencies on 140 loans with an 
aggregate outstanding balance of $22 million. 

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, or to take positions in derivative contracts.  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 to minimize the risk to us of 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 margin collateral 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 are reduced and additional margin collateral may be required.  

A deterioration of the credit standing of one or more of the customers or counterparties to these contracts may result in the 
Company 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 supported the contract or the customer or counterparty’s ability to provide margin collateral 
was impaired.    

Derivative contracts are carried at fair value.  At December 31, 2010, the net fair values of derivative contracts reported as 
assets under these programs totaled $270 million, down from $344 million at December 31, 2009 primarily due to cash 
settlements and reduced transactions volumes.  At December 31, 2010, derivative contracts carried as assets included 
interest rate contracts with fair values of $141 million, energy contracts with fair values of $77 million and foreign 
exchange contracts with fair values of $45 million.  The aggregate net fair values of derivative contracts held under these 
programs reported as liabilities totaled $215 million. 

At December 31, 2010, total derivative assets were reduced by $15 million of cash collateral received from counterparties 
and total derivative liabilities were reduced by $69 million of cash collateral delivered 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. 

46  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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, 2010 is included in Table 29. 

Table 29   Fair Value of Derivative Contracts by Category of Debtor 
                (In thousands) 
Customers 
Banks  
Exchanges 
Energy companies  
Other 
Fair value of customer hedge asset derivative contracts, net 

$  139,765 
57,377 
44,056 
22,419 
4,878 
  $ 268,495 

At December 31, 2010, the largest net reported amount due from a single counterparty, a domestic subsidiary of a major 
energy company, was $13 million.  This amount was entirely offset by letters of credit issued by multiple independent 
financial institutions.  The next largest amount due was $12 million from an energy customer.  This amount was fully 
secured by cash and securities as of December 31, 2010. 

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 exceed 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 $26 per barrel of oil would increase the fair value of derivative assets for energy 
contracts by $40 million.  An increase in prices equivalent to $160 per barrel of oil would increase the fair value of 
derivative assets for energy contracts by $280 million as current prices move further above the fixed prices embedded in 
our existing contracts.  Liquidity requirements of this program are also affected by our credit rating.  A decrease in our 
credit rating from A1 to below investment grade would increase our obligation to post cash margin on existing contracts by 
approximately $54 million. 

Summary of Loan Loss Experience 

We maintain separate allowances for loan losses and for off-balance sheet credit risk.  The combined allowance for loan 
and off-balance sheet credit losses totaled $307 million or 2.89% of outstanding loans and 133% of nonaccruing loans at 
December 31, 2010.  The combined allowance for loan and off-balance sheet credit losses totaled $306 million or 2.72% of 
outstanding loans and 90% of nonaccruing loans at December 31, 2009.  The allowance for loan losses totaled $293 million 
or 2.75% of outstanding loans at December 31, 2010 and $292 million or 2.59% of outstanding loans at December 31, 
2009.  The allowance for off-balance sheet credit commitments was $14 million at December 31, 2010 and $14 million at 
December 31, 2009. 

The provision for credit losses is the amount necessary to maintain the allowance for credit losses at an amount determined 
by management to be adequate based on its evaluation and includes the combined charge to expense for both the allowance 
for loan losses and the allowance for off-balance sheet credit losses.  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 and after the exhaustion of collection efforts.  The provision for credit losses totaled $105 million for 2010 
compared to $196 million for 2009.  Factors considered in determining the provision for credit losses for 2010 included 
improving trends of net charge-offs, nonperforming loans and risk grading.   

47  

 
 
 
 
 
 
 
 
Table 30   Summary of Loan Loss Experience 

  (Dollars in thousands) 

Allowance for loan losses: 

Beginning balance 

Loans charged off: 
Commercial 
Commercial real estate 
Residential mortgage 
Consumer 
Total 

Recoveries of loans previously charged off: 

Commercial 
Commercial real estate 
Residential mortgage 
Consumer 
Total 
Net loans charged off 
Provision for loan losses 
Additions due to acquisitions 
Ending balance 
Allowance for off-balance sheet credit losses: 
Beginning balance 
Provision for off-balance sheet credit losses 
Ending balance 
Total provision for credit losses 
Allowance for loan losses to loans outstanding at  
  year-end 
Net charge-offs to average loans 
Total provision for credit losses to average loans 
Recoveries to gross charge-offs 
Allowance for loan losses as a multiple of net charge-

offs 

Allowance for off-balance sheet credit losses to off-

balance sheet credit commitments 

Combined allowances for credit losses to loans 

outstanding at year-end 

Problem Loans: 

Loans past due (90 days) 
Nonaccrual1 
Renegotiated2 
Total 

Foregone interest on nonaccrual loans1 

2010 

Year ended December 31, 
2008 

2007 

2009 

2006 

  $  292,095 

$  233,236 

$  126,677 

$  109,497 

$  103,876 

27,640 
59,962 
20,056 
16,330 
123,988 

9,263 
3,179 
901 
6,265 
19,608 
104,380 
105,256 
– 
  $  292,971 

49,725 
57,313 
16,672 
24,789 
148,499 

2,546 
461 
929 
6,744 
10,680 
137,819 
196,678 
– 
$  292,095 

74,976 
19,141 
7,223 
20,871 
122,211 

13,379 
332 
366 
6,413 
20,490 
101,721 
208,280 
– 
$  233,236 

14,380 
1,795 
1,709 
13,733 
31,617 

4,534 
110 
309 
5,558 
10,511 
21,106 
34,758 
3,528 
$  126,677 

10,517 
87 
1,265 
12,127 
23,996 

5,405 
327 
161 
5,638 
11,531 
12,465 
18,086 
– 
$  109,497 

  $  14,388 
(117) 
  $  14,271 
  $  105,139 

$  15,166 
(778) 
$  14,388 
  $  195,900  

$  20,853 
(5,687) 
$  15,166 
  $  202,593  

$  20,890 
(37) 
$  20,853 
  $  34,721         $  18,402       

$  20,574 
316 
$  20,890 

2.75% 
0.96 
0.96 
15.81 

2.59% 
1.14 
1.61 
7.19 

1.81% 
0.81 
1.62 
16.77 

1.06% 
0.19 
0.31 
33.24 

1.03% 
0.13 
0.19 
48.05 

2.81x 

2.12x 

2.29x 

6.00x 

8.78x 

0.25% 

2.89% 

0.26% 

0.27% 

0.35% 

0.36% 

2.72% 

1.93% 

1.24% 

1.22% 

$ 

9,961 
230,814 
22,261 
$  263,036 
$  16,818 

$  10,308 
339,355 
15,906 
$  365,569 
$  17,015 

$  19,123 
300,073 
13,039 
$  332,235 
8,391 
$ 

$ 

5,575 
84,290 
10,394 
$  100,259 
3,011 
$ 

$ 

5,945 
26,055 
9,802 
$  41,802 
2,130 
$ 

1 
2 

Interest collected and recognized on nonaccrual loans was not significant in 2010 and previous years disclosed. 
Includes residential mortgage loans guaranteed by agencies of the U.S. government.  These loans have been modified to extend 
payment terms and/or reduce interest rates to current market.   

Allowance for Loan Losses 

The adequacy 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 impaired 
loans that have not yet been charged down to amounts we expect to recover, general allowances based on migration factors 
and non-specific allowances based on general economic, risk concentration and related factors.  An independent Credit 
Administration department is responsible for performing this evaluation for the entire company to ensure that the 
methodology is applied consistently.  For 2010, there have been no material changes in the approach or techniques utilized 
in developing the allowance for loan losses.   

Specific allowances for impaired loans are determined by evaluation of estimated future cash flows, collateral value or 
historical statistics.  Loans are considered to be impaired when it is probable that we will not be able to collect all amounts 
due according to the contractual terms of the loan agreement.  This is substantially the same criteria used to determine when 
a loan should be placed on nonaccrual status.  Generally, all nonaccruing commercial and commercial real estate loans are 
considered impaired.  Substantially all impaired loans are collateralized.  Collateral includes real property, inventory, 
accounts receivable, operating equipment, interests in mineral rights, and other property.  Collateral may also include 
personal guaranties by borrowers and related parties.   

48  

 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Delinquency status is not a significant consideration in the evaluation of impairment or risk-grading of commercial or 
commercial real estate loans.  These evaluations are based on an assessment of the borrowers’ paying capacity and attempt 
to identify changes in credit risk before payments become delinquent.  Changes in the delinquency trends of residential 
mortgage loans and consumer loans may indicate increases or decreases in expected losses.   

Impaired 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 based on an evaluation of available cash resources or collateral value.  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 generally on an “as is” basis and are not adjusted by us.  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.  Updated appraisals are obtained at least 
annually, or more frequently if market conditions indicate collateral values have declined.  The excess of the outstanding 
principal balance over the fair value of collateral, less estimated selling costs and available cash resources of the borrower 
is charged-off against the allowance for loan losses.  

No allowances are attributed to the remaining balance of loans that have been charged-down to amounts management 
expects to recover.  However, the remaining balance continues to be classified as nonaccruing until full recovery of 
principal and interest, including the charged-off portion of the loans, is probable. 

Impaired loans totaled $203 million at December 31, 2010 and $317 million at December 31, 2009.  At December 31, 
2010, $125 million of impaired loans had specific allowances of $7.1 million and $78 million had no specific allowances 
because the loan balance had been charged down to amounts we expect to recover.  Impaired loans had gross outstanding 
principal balances of $301 million.  Cumulative life-to-date charge-offs of impaired loans at December 31, 2010 totaled 
$98 million, including $54 million charged off during 2010.  At December 31, 2009, $204 million of impaired loans had 
specific allowances of $36 million and $113 million of impaired loans had no specific allowances because they had been 
charged down to amounts we expect to recover.   

General allowances for unimpaired loans are based on migration models.  Separate migration models are used to determine 
general allowances for commercial and commercial real estate loans, residential mortgage loans, and consumer loans.  
Substantially all commercial and commercial real estate loans and certain residential mortgage and consumer loans are risk-
graded based on an evaluation of the borrowers’ ability to repay the loans.  Migration factors are determined for each risk-
grade to determine the inherent loss based on historical trends.  We use an eight-quarter aggregate accumulation of net 
losses as a basis for the migration factors.  Losses incurred in more recent periods are more heavily weighted by a sum-of-
periods-digits formula.  The higher of current loss factors based on migration trends or a minimum migration factor based 
upon long-term history is assigned to each risk grade.   

Migration models fairly measure loss exposure during an economic cycle.  However, because they are based on historic 
trends, their accuracy is limited near the beginning and ending of a cycle.  Because of this limitation, the results of the 
migration model are evaluated by management quarterly.  The general allowance may be adjusted upward or downward 
accordingly so that the allowance for loan losses fairly represents the expected credit losses inherent in the loan portfolio as 
of the balance sheet date.  

The general allowance for residential mortgage loans is based on an eight-quarter average percent of loss.  The general 
allowance for consumer loans is based on an eight-quarter average percent of loss with separate migration factors 
determined by major product line, such as indirect automobile loans and direct consumer loans.   

The aggregate amount of general allowances determined by migration factors for all unimpaired loans totaled $259 million 
at December 31, 2010 and $238 million at December 31, 2009. 

Nonspecific allowances are maintained for risks beyond factors specific to a particular loan or identified by the migration 
models.  These factors include trends in the economy in our primary lending areas, conditions in certain industries where 
we have a concentration and overall growth in the loan portfolio.  Evaluation of nonspecific factors considers the effect of 
the duration of the business cycle on migration factors.  Nonspecific factors also consider current economic conditions and 
other relevant factors.  Nonspecific allowances totaled $27 million at December 31, 2010 and $18 million at December 31, 
2009.       

An allocation of the loan loss allowance by loan category follows in Table 31. 

49  

 
 
 
 
 
 
 
 
 
 
 
Table 31  Allowance for Loan Losses Allocation 

(Dollars in thousands) 

2010 

2009 

December 31, 
2008 

2007 

2006 

Allowance2 

% of 
Loans1 

Allowance2

% of 
Loans1 

Allowance2

% of 
Loans1 

Allowance2 

% of 
Loans1 

Allowance2

% of 
Loans1 

  $104,631  55.75%  $  121,320 

55.04%  $  100,743 

57.56%  $   49,961 

56.07%  $   44,151 

58.29% 

98,709 
50,281 
12,614 

21.40 
17.18 
5.67 

104,208 
27,863 
20,452 

22.09 
15.90 
6.97 

75,555 
14,017 
19,819 

20.98 
13.61 
7.85 

40,807 
6,156 
9,962 

22.89 
13.38 
7.66 

30,838 
4,663 
11,784 

22.97 
11.80 
6.94 

Loan category: 
Commercial 
Commercial real 

estate 

Residential mortgage 
Consumer 
Nonspecific 

allowance 

26,736 

– 

18,252 

– 

23,102 

– 

19,791 

– 

18,061 

– 

Total 

  $292,971  100.00%  $  292,095  100.00%  $  233,236  100.00%  $  126,677  100.00%  $  109,497  100.00% 

1  Represents ratio of loan category balance to total loans, excluding residential mortgage loans held for sale. 
2  Specific allocation for the loan concentration risks is included in the appropriate category. 

Our loan review process also identified loans that possess more than the normal amount of risk due to deterioration in the 
financial condition of the borrower.  Because the borrowers are still performing in accordance with the original terms of the 
loan agreements, these loans were not included in nonperforming assets.  Known information does, however, cause 
management concern as to the borrowers’ ability to comply with current repayment terms.  These potential problem loans 
totaled $176 million at December 31, 2010.  The current composition of potential problem loans by primary industry 
included:  commercial real estate - $60 million; wholesale/retail - $45 million; services - $30 million and residential 
mortgage - $19 million.   

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.  Loans are evaluated quarterly and charge-offs are taken in the quarter in which the loss is identified.     

Net loans charged off during 2010 totaled $104 million compared to $138 million in the previous year.   The ratio of net 
loans charged off to average outstanding loans was 0.96% for 2010 and 1.14% for 2009.  Net charge-offs for 2010 
decreased $33 million compared to the previous year.  Gross loans charged off decreased $24 million and recoveries 
increased $8.9 million. 

Net loans charged off by category and principal market area follow in Table 32. 

Table 32  Net Loans Charged Off by Category and Principal Market Area 

(Dollars in thousands) 

Oklahoma 

Texas 

Colorado  Arkansas 

Mexico  Arizona 

New  

Kansas/ 
Missouri 

Total 

2010: 

Commercial 
Commercial real estate 
Residential mortgage 
Consumer 

$   3,192 
20,328 
13,842 
4,442 

$  7,062 
3,673 
1,746 
2,859 

$    1,070 
9,180 
164 
483 

$  1,393 
3,605 
150 
1,577 

$ 3,528 
795 
2,231 
665 

$   2,081 
19,202 
1,016 
25 

Net loans charged off 

$ 41,804 

$ 15,340 

$ 10,897 

$ 6,725 

$ 7,219 

$ 22,324 

$ 51 
– 
6 
14 

$ 71 

$  18,377 
56,783 
19,155 
10,065 

$104,380 

2009: 

Commercial 
Commercial real estate 

Residential mortgage 
Consumer 

$ 18,861 
2,435 

$   8,851 
5,155 

$ 12,214 
11,884 

7,857 
8,231 

4,005 
5,363 

610 
287 

$       79 
369 

190 
2,998 

$ 2,882 
2,805 

1,112 
981 

$  3,416 
34,191 

$     876 
13 

$  47,179 
56,852 

1,969 
182 

– 
3 

15,743 
18,045 

Net loans charged off 

$ 37,384 

$ 23,374 

$ 24,995 

$  3,636 

$  7,780 

$ 39,758 

$       892 

$137,819 

Net commercial loans charged off in 2010 decreased $29 million from the prior year and included $7.4 million of loans 
from the healthcare sector of the loan portfolio, $3.9 million from the service sector of the loan portfolio, $2.5 million of 
loans from the wholesale/retail sector of the loan portfolio and $2.0 million of loans from the energy sector of the loan 
portfolio.   

50  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net commercial real estate loans charged off during 2010 were flat with the prior year.  Net charge-offs increased $18 
million in the Oklahoma market, primarily offset by a $15 million decrease in the Arizona market.  Net commercial real 
estate loan charge-offs in 2010 included $19 million from the land and residential construction sector of the loan portfolio, 
primarily composed of $6.7 million in the Arizona market and $5.4 million in the Colorado market.  Net commercial real 
estate loans charged-off in 2010 also included a $17 million charge-off of a loan to a single issuer secured by an office 
building attributed to the Oklahoma market and $11 million charged off related to loans secured by retail properties 
primarily in the Arizona market.   

Residential mortgage net charge-offs increased $3.4 million compared the prior year primarily related to loans attributed to 
Oklahoma market.  The timing of residential mortgage loan charge-offs varies based on foreclosure activity and 
delinquency status.  Consumer loan net charge-offs, which include indirect auto loan and deposit account overdraft losses, 
decreased $8.0 million compared to the previous year.  Net charge-offs of indirect auto loans totaled $4.5 million for 2010 
and $9.7 million for 2009.   

51  

 
 
 
 
 
Nonperforming Assets 

Table 33   Nonperforming Assets 
                (Dollars in thousands) 

Nonperforming loans 
Nonaccrual loans: 
Commercial 
Commercial real estate 
Residential mortgage 
Consumer 

Total nonaccrual loans 

Renegotiated loans2 

Total nonperforming loans 

Other nonperforming assets 

Total nonperforming assets 
Nonaccrual loans by principal market: 

Oklahoma 
Texas 
New Mexico 
Arkansas 
Colorado3 
Arizona 
Kansas/Missouri  

Total nonaccrual loans 

Nonaccrual loans by loan portfolio sector: 

Commercial: 
Energy 
Services 
Wholesale / retail 
Manufacturing 
Healthcare 
Integrated food services 
Other commercial and industrial 

Total commercial 
Commercial real estate: 

Construction and land development 
Retail 
Office 
Multifamily 
Industrial 
Other commercial real estate 
  Total commercial real estate 

Residential mortgage: 

Permanent mortgage 
Home equity 

Total residential mortgage 

Consumer 

Total nonaccrual loans 

Ratios: 

2010 

2009 

December 31, 
2008 

2007 

2006 

  $  38,455 
150,366 
37,426 
4,567 
230,814 
22,261 
253,075 
141,394 
  $ 394,469 

  $ 101,384 
204,924 
29,989 
3,058 
339,355 
15,906 
355,261 
129,034 
  $484,295 

  $  60,805 
  33,157 
  19,283 
7,914 
  49,416 
  60,239 
– 
  $ 230,814 

  $  83,176 
  66,892 
  26,693 
  13,820 
  60,082 
  84,559 
4,133 
  $339,355 

  $ 

465 
19,262 
8,486 
2,116 
3,534 
13 
4,579 
38,455 

  $ 22,692 
30,926 
12,057 
    15,765 
13,103 
65 
6,776 
101,384 

99,579 
4,978 
19,654 
6,725 
4,087 
15,343 
150,366 

109,779 
26,236 
25,861 
26,540 
279 
16,229 
204,924 

  $ 134,846 
137,279 
27,387 
561 
300,073 
13,039 
313,112 
29,179 
  $342,291 

  $ 108,367 
  42,934 
  16,016 
3,263 
  32,415 
  80,994 
  16,084 
  $ 300,073 

  $ 49,364 
36,873 
18,773 
7,343 
12,118 
680 
9,695 
134,846 

76,082 
15,625 
7,637 
24,950 
6,287 
6,698 
137,279 

  $  42,981 
25,319 
15,272 
718 
84,290 
10,394 
94,684 
9,475 
  $104,159 

  $ 47,977 
4,983 
  11,118 
1,635 
9,222 
9,355 
– 
  $ 84,290 

$ 10,737 
4,771 
10,325 
222 
26,055 
9,802 
35,857 
8,486 
$44,343 

  $ 17,683 
6,096 
871 
267 
1,138 
– 
– 
  $ 26,055 

  $ 

529 
25,468 
3,792 
9,915 
2,301 
380 
596 
42,981 

13,466 
5,259 
1,013 
3,998 
– 
1,583 
25,319 

  $ 

535 
5,759 
2,457 
101 
1,600 
93 
192 
10,737 

2,031 
– 
732 
320 
– 
1,688 
4,771 

32,111 
5,315 
37,426 
4,567 
  $ 230,814 

28,314 
1,675 
29,989 
3,058 
  $ 339,355 

26,233 
1,154 
27,387 
561 
  $ 300,073 

14,541 
731 
15,272 
718 
  $ 84,290 

9,923 
402 
10,325 
222 
  $ 26,055 

Allowance for loan losses to nonperforming loans 
Nonperforming loans to period-end loans 

115.76% 
2.38 

82.22% 
3.15 

74.49% 
2.43 

133.79% 
0.79 

305.37% 
0.34 

Loans past due (90 days)1 

$ 9,961 

$10,308 

$19,123 

$ 5,575 

$  5,945 

1 

2 

3 

Includes residential mortgages guaranteed by 
agencies of the U.S. Government. 
Includes residential mortgage loans guaranteed by 
agencies of the U.S. government.  These loans have 
been modified to extend payment terms and/or reduce 
interest rates.   
Includes loans subject to First United Bank sellers 
escrow. 

$  1,995 

$  1,400  

$ 

872  

$  1,017 

$  2,233 

$18,551 

$12,799 

$10,396  

$  7,550  

$  5,747 

$ 

– 

$  4,311 

$13,181 

$  8,412 

$ 

– 

52  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Nonperforming assets decreased $90 million during 2010 to $394 million or 3.66% of outstanding loans and repossessed 
assets at December 31, 2010.  Nonaccruing loans totaled $231 million, renegotiated residential mortgage loans totaled $22 
million (including $19 million of residential mortgage loans guaranteed by U.S. government agencies) and real estate and 
other repossessed assets totaled $141 million.  The Company generally retains nonperforming assets to maximize potential 
recovery.   

Renegotiated loans represent troubled debt restructurings of residential mortgage loans.  Generally, we modify residential 
mortgage loans by reducing interest rates and extending the number of payments.  We do not forgive principal or unpaid 
interest.  At December 31, 2010, approximately $10 million of the renegotiated residential mortgage loans are currently 
performing in accordance with the modified terms, $4.8 million are 30 to 89 days past due and $7.2 million are past due 90 
days or more.  Restructured residential mortgage loans guaranteed by agencies of the U.S. government in accordance with 
agency guidelines represent $19 million of our $22 million portfolio of renegotiated loans.  Interest continues to accrue on 
these guaranteed loans based on the modified terms of the loan.  Renegotiated loans may be transferred to loans held for 
sale after a period of satisfactory performance, generally at least nine months.  If it becomes probable that we will not be 
able to collect all amounts due according to the modified loan terms, the loans are placed on nonaccrual status and included 
in nonaccrual loans. 

Commercial and commercial real estate loans are considered distressed when it becomes probable that we will not collect 
the full contractual principal and interest.  All distressed commercial and commercial real estate loans are placed on 
nonaccrual status.  We may modify loans to distressed borrowers generally consisting of extension of payment terms, not to 
exceed the final contractual maturity date of the original loan.  We do not forgive principal or accrued but unpaid interest, 
nor do we grant interest rate concessions.  We do not modify consumer loans to troubled borrowers. 

A rollforward of nonperforming assets for the year ended December 31, 2010 follows in Table 34. 

Table 34   Rollforward of Nonperforming Assets 
                  (Dollars in thousands) 

Nonaccruing 
Loans 

Renegotiated 
Loans 

  $ 

339,355 
199,274 

  $ 

15,906 
13,435 

Real Estate 
and Other 
Repossessed 
Assets 
  $     129,034 
167 

Total 
Nonperforming 
Assets 

$  

484,295 
212,876 

– 
(102,422) 
(123,988) 

– 
(63,059) 
– 
(22,596) 
855 
3,395 
230,814 

$ 

  $ 

– 
(50) 
– 

– 
– 
(6,217) 
– 
(855) 
42 
22,261 

9,786 
– 
– 

(23,633) 
63,059 
(37,446) 
– 
– 
427 
141,394 

  $ 

  $ 

9,786 
(102,472) 
(123,988) 

(23,633) 
– 
(43,663) 
(22,596) 
– 
3,864 
394,469 

Beginning balance 
Additions 
Transfers from premises 

and equipment 

Payments 
Charge-offs 
Net writedowns and 

losses 
Foreclosures 
Proceeds from sales 
Return to accrual 
Transfer to nonaccrual 
Other, net 
Ending balance 

This distribution of nonaccruing loans among our various markets follows in Table 35. 

Table 35   Nonaccruing Loans by Principal Market 
               (Dollars in thousands) 

December 31, 2010 

December 31, 2009 

Change 

% of 
outstanding 
loans 

Amount 

% of 
outstanding 
loans 

Amount 

Amount 

% of 
outstanding 
loans 
(37) bp 

Oklahoma 

Texas 
New Mexico 

Arkansas 
Colorado 
Arizona 
Kansas/Missouri 

  $ 

60,805 

33,157 
19,283 

7,914 
49,416 
60,239 
– 

1.24%   $ 
1.10 
2.75 

2.75 
6.49 
11.48 
– 

83,176 

66,892 
26,693 

13,820 
60,082 
84,559 
4,133 

1.61% 

  $ 

(22,371) 

2.07 
3.56 

3.67 
6.91 
17.09 
1.03 

(33,735) 
(7,410) 

(5,906) 
(10,666) 
(24,320) 
(4,133) 

(97) 
(81) 

(92) 
(42) 
(561) 
(103) 

Total  

  $ 

230,814 

2.17%   $ 

339,355 

3.01% 

  $ 

(108,541) 

(84) bp 

53  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
Nonaccruing loans attributed to the Oklahoma market are primarily composed of $26 million of residential mortgage loans, 
$19 million of commercial real estate loans and $14 million of commercial loans.  Nonaccruing loans attributed to the 
Arizona, Colorado and Texas markets consisted primarily of commercial real estate loans.     

Nonaccruing loans decreased $109 million from December 31, 2009 primarily due to a $34 million decrease in nonaccruing 
loans attributed to the Texas market, a $24 million decrease in nonaccruing loans attributed to the Arizona market and a $22 
million decrease in nonaccruing loans attributed to the Oklahoma market.  Nonaccruing loans attributed to the Colorado, 
New Mexico, Arkansas and Kansas/Missouri markets also decreased during 2010.  During 2010, $199 million of new 
nonaccruing loans were identified, offset by $124 million of charge-offs, $102 million of payments received and $63 million 
of foreclosures and repossessions.  In addition, $23 million of nonaccruing loans were returned to accrual status during 2010 
based on our expectation of full repayment.  The ratio of nonaccruing loans to period end loans was negatively impacted by a 
$637 million decrease in period end loan balances from December 31, 2009.     

Commercial 

Nonaccruing commercial loans totaled $38 million or 0.65% of total commercial loans at December 31, 2010 and $101 
million or 1.63% of total commercial loans at December 31, 2009.  At December 31, 2010, nonaccruing commercial loans 
were primarily composed of $19 million or 1.22% of total services sector loans and $8.5 million or 0.84% of wholesale/retail 
sectors loans.  Nonaccruing commercial loans decreased $63 million during 2010 primarily due to a $22 million decrease in 
nonaccruing energy sector loans, a $14 million decrease in nonaccruing manufacturing sector loans, a $12 million decrease in 
service sector loans and a $10 million decrease in nonaccruing healthcare sector loans. 

Newly identified nonaccruing commercial loans in 2010 totaled approximately $48 million primarily, offset by $56 million of 
payments, $28 million in charge-offs, $19 million of nonaccruing loans returning to accrual status and $8 million in 
foreclosures.  The distribution of nonaccruing commercial loans among our various markets was as follows in Table 36. 

Table 36   Nonaccruing Commercial Loans by Principal Market 
                (Dollars in thousands) 

December 31, 2010 

December 31, 2009 

Change 

% of 
outstanding 
loans 

Amount 

% of 
outstanding 
loans 

Amount 

Oklahoma 
Texas 
New Mexico 
Arkansas 
Colorado 
Arizona 
Kansas/Missouri 

  $ 

13,978 
5,603 
5,818 
212 
6,702 
6,142 
– 

0.54%   $ 
0.30 
2.08 
0.25 
1.42 
2.66 
– 

36,990 
32,591 
14,365 
434 
8,132 
8,804 
68 

1.40% 
1.62 
4.20 
0.42 
1.49 
4.42 
0.02 

  $ 

Amount 

(23,012) 
(26,988) 
(8,547) 
(222) 
(1,430) 
(2,662) 
(68) 

% of 
outstanding 
loans 
(86) bp 

(132) 
(212) 
(17) 
(7) 
(176) 
(2) 

Total  

  $ 

38,455 

0.65%   $ 

101,384 

1.63% 

  $ 

(62,929) 

(98) bp 

Commercial Real Estate 

Nonaccruing commercial real estate loans totaled $150 million or 6.60% of outstanding commercial real estate loans at 
December 31, 2010 compared to $205 million or 8.23% of outstanding commercial real estate loans at December 31, 2009.  
Nonaccruing commercial real estate loans are largely concentrated in land development and residential construction loans.  
Nonaccruing commercial real estate loans decreased approximately $55 million during 2010 primarily composed of a $21 
million decrease in nonaccruing loans secured by retail properties, a $20 million decrease in loans secured by multifamily 
residential properties and a $10 million decrease in nonaccruing construction and land development loans.  Newly 
identified nonaccruing commercial real estate loans totaled $100 million, offset by $60 million of charge-offs, $45 million 
of foreclosures and $44 million of cash payments received.  Nonaccruing commercial real estate loans attributed to our 
geographic markets follows in Table 37. 

54  

 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
 
Table 37   Nonaccruing Commercial Real Estate Loans by Principal Market 
                 (Dollars in thousands) 

December 31, 2010 

December 31, 2009 

Change 

% of 
outstanding 
loans 

Amount 

% of 
outstanding 
loans 

Amount 

  $ 

19,005 
21,228 
11,494 

6,346 
41,066 

51,227 
– 

2.62%   $ 
3.09 
3.65 

5.42 
20.83 

25.48 
– 

30,524 
24,163 
10,101 

11,727 
51,661 

73,106 
3,641 

3.72% 
3.29 
3.31 

8.85 
21.53 

32.17 
11.82 

  $ 

Amount 

(11,519) 
(2,935) 
1,393 

(5,381) 
(10,595) 

(21,879) 
(3,641) 

% of 
outstanding 
loans 
(110) bp 
(20) 
34 

(343) 
(70) 

(669) 
(1,182) 

Oklahoma 
Texas 
New Mexico 

Arkansas 
Colorado 

Arizona 
Kansas/Missouri 

Total  

  $ 

150,366 

6.60%   $ 

204,923 

8.23% 

  $ 

(54,557) 

(163) bp 

Nonaccruing commercial real estate loans are primarily concentrated in the Arizona and Colorado markets.   
Approximately $51 million or 34% of nonaccruing commercial real estate loans are in Arizona and consist primarily of 
nonaccruing residential construction and land development loans.  Nonaccruing commercial real estate loans in the 
Colorado market were $41 million or 27% of total nonaccruing commercial real estate loans, composed primarily 
nonaccruing residential construction and land development loans.  

Residential Mortgage and Consumer 

Nonaccruing residential mortgage loans increased $7.4 million over the prior year primarily as a result loans purchased 
from serviced pools.  As discussed previously, most of these loans are fully guaranteed by government agencies.  
Nonaccruing residential mortgage loans primarily consist of permanent residential mortgage loans which totaled $32 
million or 2.52% of outstanding permanent residential mortgage loans at December 31, 2010 and home equity loans which 
totaled $5.3 million or 0.96% of total home equity loans at December 31, 2010.   

In addition to nonaccruing residential mortgage and consumer loans, payments of residential mortgage loans and consumer 
loans may be delinquent.  The composition of residential mortgage and consumer loans that are past due but still accruing 
interest is included in the following Table 38.  During 2010, residential mortgage loans less than 90 days past due decreased 
$2.2 million and residential mortgage loans past due 90 days or more increased $439 thousand.   Consumer loans past due 
30 to 89 days decreased $12 million primarily due to a decrease in indirect automobile loans.  Consumer loans past due 90 
days or more decreased $3.5 million, primarily due to a $3.0 million decrease in other consumer loans. 

Table 38   Residential Mortgage and Consumers Loans Past Due 
                (Dollars in thousands) 

December 31, 2010 
30 to 89 
90 Days 
Days 
or More 

December 31, 2009 
30 to 89 
90 Days 
Days 
or More 

   Permanent mortgage 
   Home equity 
Total residential mortgage 

  $  1,995 
– 
  $  1,995 

  $ 21,719  
1,605 
  $ 23,324 

$ 1,532 
24 
$ 1,556 

$  23,489 
2,049 
$ 25,538 

Consumer: 
   Indirect automobile 
   Other consumer 
Total consumer 

  $ 

$ 

67 
295 
362 

  $ 11,382 
927 
  $ 12,309 

$    537 
3,297 
$ 3,834 

$   23,191 
1,612 
$ 24,803 

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, which is determined by fair value at date of foreclosure less estimated disposal costs, or current fair value 
less estimated disposal costs.  The fair value of real property is generally based on third party appraisals that conform to 
Uniform Standards of Professional Appraisal Practice.  Appraisals are ordered at foreclosure and are updated on no less 
than an annual basis.  For certain property types, such as residential building lots, or in certain distressed markets, we may 
request updated appraisals more frequently.  Appraised values are on an “as is” basis and are not adjusted.  For 
uncompleted properties, we may also obtain appraised value for properties on an “as completed” basis to use in 
determination of whether to develop properties to completion and costs may be capitalized not to exceed the estimated “as  

55  

 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
completed” fair value as determined by the independent real estate appraisal.  Mineral rights 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 assets is generally determined by our special assets staff based on projected 
liquidation cash flows under current market conditions.   

The carrying value of real estate and other repossessed assets is evaluated by management on a quarterly basis, including 
our consideration of marketing activity of our properties and sales of competing properties.          

Real estate and other repossessed assets totaled $141 million at December 31, 2010, a $12 million increase over December 
31, 2009.  Undeveloped land increased $14 million over the prior year, primarily in the Texas and Kansas/Missouri 
markets.  Developed commercial real estate properties increased $5.7 million over the prior year primarily in the Arizona 
and Oklahoma markets.  1-4 family residential properties and residential land development properties decreased $4.4 
million compared to the prior year primarily due to an $11 million decrease in properties attributed to the Arizona market, 
partially offset by a $4.3 million increase in properties attributed to the Texas market and a $1.3 million increase in 
properties attributed to the Oklahoma market.  In addition, equipment attributed to the Kansas/Missouri market decreased 
$2.9 million from the prior year.  The distribution of real estate and other repossessed assets attributed by geographical 
market is included in Table 39 following. 

Additions to other real estate owned during 2010 included $10 million of developed commercial real estate and 
undeveloped land previously held for branch expansion in the Texas, Colorado and Oklahoma markets.  These properties 
were written down by $2.9 million during 2010.   

Table 39   Real Estate and Other Repossessed Assets by Principal Market 
                 (Dollars in thousands) 

1-4 family residential 
properties and 
residential land 
development 
properties 

Developed commercial 
real estate properties 
Equity interest in partial 
satisfaction of debts 

Undeveloped land 
Oil and gas properties 
Construction equipment 
Vehicles 
Other 
Total real estate and 
other repossessed 
assets 

Oklahoma 

Texas 

Colorado  Arkansas 

Mexico  Arizona 

New 

Kansas/ 
Missouri  Other 

Total 

  $ 

6,316 

  $  21,875  $ 

3,631 

$ 

5,034 

$  969 

$  19,475    $ 

772 

  $  685 

  $  58,757

5,925 

3,413 

3,879 

1,723 

7,143 

19,866 

– 

11,723 
297 
– 
– 
731 
– 

– 
7,789 
3,020 
– 
143 
– 

– 
3,076 
– 
– 
– 
170 

– 
72 
– 
– 
463 
– 

– 
282 
– 
– 
– 
– 

– 
6,222 
– 
– 
– 
– 

– 
4,802 
– 
1,898 
– 
– 

– 

– 
– 
– 
– 

– 
– 

41,949 

11,723 
22,540 
3,020 
1,898 
1,337 
170 

  $ 

24,992 

  $ 36,240 

$  10,756 

$ 

7,292 

  $8,394  $  45,563 

  $  7,472 

$  685 

$141,394 

Undeveloped land is primarily zoned for commercial development.  Developed commercial real estate properties are 
primarily completed with no additional construction necessary for sale.  Shares of the entity in which we hold an equity 
interest have recently been listed for trading at a price that exceeds our carrying value per share.   

56  

 
 
 
 
 
 
 
 
 
 
 
Liquidity and Capital 

Subsidiary Banks 

Deposits and borrowed funds are the primary sources of liquidity for the subsidiary banks.  Based on the average balances 
for 2010, approximately 68% of our funding is provided by average deposit accounts, 16% from average borrowed funds, 
2% from average long-term subordinated debt and 10% from average equity.  Our funding sources, which primarily include 
deposits, borrowings from the Federal Home Loan Banks and other banks, provide adequate liquidity to meet our operating 
needs. 

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 our 
Perfect Banking sales and customer service program, free checking and online bill paying services, an extensive network of 
branch locations and ATMs and a 24-hour 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.  

For 2010, average deposits totaled $16.3 billion and represent 68% of total average liabilities and capital compared with 
$15.2 billion which represented 66% of total average liabilities and capital for 2009.  Average interest-bearing transaction 
deposit accounts continued to grow in 2010, up $1.5 billion or 21% over 2009.  Growth in our average interest-bearing 
transaction deposit accounts included $585 million of commercial deposits, $536 million of wealth management deposits 
and $339 million of consumer banking deposits.  Average demand deposits also increased, up $510 million or 16% over 
last year, including an increase of $355 million in commercial deposits, $83 million in consumer deposits and $56 million 
in wealth management deposits.  Average time deposits decreased $970 million or 21% compared to 2009.   

Table 40   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, 

2010 

2009 

  $  280,284 
208,033 
582,032 
1,106,161 
 $  2,176,510 

  $  537,757 
399,580 
648,416 
525,127 
 $  2,110,880 

Brokered deposits, which are included in time deposits, averaged $201 million for 2010, down from $533 million for 2009.  
Brokered deposits totaled $210 million at December 31, 2010 and $169 million at December 31, 2009.   

57  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
The distribution of deposit accounts among our principal markets is shown in Table 41.   

Table 41   Deposits by Principal Market Area 
                (In thousands) 

Oklahoma: 
Demand 
Interest-bearing: 
Transaction 
Savings 
Time 

Total interest-bearing 

Total Oklahoma 
Texas: 

Demand 
Interest-bearing: 
Transaction 
Savings 
Time 

Total interest-bearing 

Total Texas 
New Mexico: 
Demand 
Interest-bearing: 
Transaction 
Savings 
Time 

Total interest-bearing 

Total New Mexico 
Arkansas: 

Demand 
Interest-bearing: 
Transaction 
Savings 
Time 

Total interest-bearing 

Total Arkansas 
Colorado: 

Demand 
Interest-bearing: 
Transaction 
Savings 
Time 

Total interest-bearing 

Total Colorado 
Arizona: 

Demand 
Interest-bearing: 
Transaction 
Savings 
Time 

Total interest-bearing 

Total Arizona 
Kansas/Missouri: 
Demand 
Interest-bearing: 
Transaction 
Savings 
Time 

Total interest-bearing 

Total Kansas/Missouri 
Total BOK Financial deposits 

2010 

2009 

December 31, 
2008 

2007 

2006 

  $ 2,271,375 

  $ 2,068,908 

  $ 1,683,374 

  $ 1,394,861 

  $ 1,298,593 

6,061,626 
106,411 
1,373,307 
7,541,344 
  $ 9,812,719 

5,134,902 
93,006 
1,397,240 
6,625,148 
  $ 8,694,056 

4,117,729 
86,476 
3,104,933 
7,309,138 
  $ 8,992,512 

3,477,208 
80,467 
2,426,822 
5,984,497 
  $ 7,379,358 

3,072,830 
83,017 
2,595,890 
5,751,737 
  $7,050,330 

  $ 1,389,876 

  $ 1,108,401 

  $ 1,067,456 

  $ 1,035,134 

  $  848,152 

1,791,810 
36,429 
966,116 
2,794,355 
  $ 4,184,231 

1,748,319 
35,129 
1,100,602 
2,884,050 
  $ 3,992,451 

1,460,576 
32,071 
857,416 
2,350,063 
  $ 3,417,519 

1,753,843 
34,618 
800,460 
2,588,921 
  $ 3,624,055 

1,480,138 
24,074 
829,255 
2,333,467 
  $ 3,181,619 

  $  270,916 

  $  209,090 

  $  155,345 

  $  151,231 

  $  175,980 

530,244 
28,342 
450,177 
1,008,763 
  $  1,279,679 

444,247 
17,563 
510,202 
972,012 
  $  1,181,102 

397,382 
16,289 
522,894 
936,565 
  $  1,091,910 

432,919 
15,146 
486,868 
934,933 
  $  1,086,164 

380,450 
16,417 
490,460 
887,327 
  $  1,063,307 

  $ 

15,310 

  $ 

21,526 

  $ 

16,293 

  $ 

13,247 

  $ 

15,604 

129,580 
1,266 
100,998 
231,844 
  $  247,154 

50,879 
1,346 
101,839 
154,064 
  $  175,590 

38,566 
1,083 
75,579 
115,228 
  $  131,521 

  $ 

19,027 
883 
40,692 
60,602 
73,849 

  $ 

14,890 
1,010 
57,446 
73,346 
88,950 

  $  157,742 

  $  146,929 

  $  116,637 

  $  117,939 

  $ 

80,559 

522,207 
20,310 
502,889 
    1,045,406 
  $ 1,203,148 

448,846 
17,802 
525,844 
992,492 
  $ 1,139,421 

480,113 
17,660 
532,475 
    1,030,248 
  $ 1,146,885 

446,427 
23,806 
539,523 
    1,009,756 
  $ 1,127,695 

296,451 
12,632 
485,200 
794,283 
  $  874,842 

  $ 

74,887 

  $ 

68,651 

  $ 

39,424 

  $ 

46,701 

  $ 

51,542 

95,890 
809 
52,227 
148,926 
  $  223,813 

81,909 
958 
60,768 
143,635 
  $  212,286 

56,985 
1,014 
34,290 
92,289 
  $  131,713 

65,788 
1,435 
11,603 
78,826 
  $  125,527 

61,539 
1,978 
6,574 
70,091 
  $  121,633 

  $ 

40,658 

  $ 

30,339 

  $ 

3,850 

  $ 

9,656 

  $ 

57 

21,337 
124,005 
148 
200 
71,498 
63,454 
92,983 
187,659 
  $  123,322 
  $  228,317 
  $ 17,179,061    $15,518,228 

10,999 
42 
55,656 
66,697 
  $ 
70,547 
  $14,982,607 

8,304 
13 
24,670 
32,987 
  $ 
42,643 
  $13,459,291 

244 
2 
5,721 
5,967 
  $ 
6,024 
  $ 12,386,705 

58  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
 
Information relating to other borrowings for the year ended December 31, 2010 is summarized in Table 42 (dollars in 
thousands): 

Table 42   Borrowed Funds 
                 (In thousands) 

As of 

Annual 
December 31,  Average 
Balance 

2010 

Maximum 
Outstanding 
At Any 

Rate  Month End 

Parent Company: 
  Trust preferred debt 
Subsidiary Banks: 

Funds purchased  
Repurchase agreements 
Federal Home Loan Bank 

advances 

Federal Reserve advances 
Subordinated debentures 
Other 

Total subsidiary banks 

Total other borrowings 

  $   

7,217 

$        7,217   6.42%  $ 

7,217 

1,025,018 
1,258,762 

    1,185,742   0.11 
1,130,082   0.59 

    1,465,983 
1,258,762 

801,797 
– 
398,701 
24,564 
    3,508,842 
  $  3,516,059 

1,446,482   0.14 

 – 

60,961  
398,619   5.78 
22,365   0.46 
    4,244,250   0.95 
  $  4,251,467   0.98 

2,277,977 
400,000 
398,701 
25,326 

In addition to deposits, subsidiary bank liquidity 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 Federal funds purchased totaled $209 million at 
December 31, 2010.  Securities repurchase agreements are recorded as secured borrowings that generally mature within 90 
days and are secured by certain available for sale securities.  All of our repurchase agreement transactions are recognized as 
secured borrowings.  Federal Home Loan Bank borrowings generally mature within one year and are secured by a blanket 
pledge of eligible collateral (generally unencumbered U.S. Treasury and U.S. Agency issued mortgage-backed securities, 1-
4 family residential mortgage loans, multifamily and other qualifying commercial real estate loans).  Amounts borrowed 
from the Federal Home Loan Banks of Topeka and Dallas averaged $1.4 billion.  During 2009, the outstanding balance of 
federal funds purchased averaged $1.5 billion and securities repurchase agreements averaged $817 million.  Amount 
borrowed from the Federal home Loan Banks of Topeka and Dallas averaged $1.2 billion in 2009. 

At December 31, 2010, the estimated unused credit available to the subsidiary banks from collateralized sources was 
approximately $7.3 billion.   

Parent Company and Other Non-Bank Subsidiaries 

The primary source of liquidity for BOK Financial is dividends from the Banks, which are 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.  During the fourth quarter of 2010 and in anticipation of combining the 
charters of our subsidiary banks into one entity, the Banks paid a $175 million dividend to BOK Financial Corporation.  
Based on the most restrictive limitations as well as management’s internal capital policy, at December 31, 2010, BOKF, 
NA could declare up to $82 million of dividends without regulatory approval.  Future losses or increases in required 
regulatory capital could affect BOKF, NA ability to pay dividends to the parent company.  

The Company has an unsecured revolving credit agreement with George B. Kaiser, its Chairman and principal shareholder.  
The committed amount under the terms of the credit agreement is $100 million and matures on December 2, 2012.  Interest 
on outstanding balances due to Mr. Kaiser is based on one-month LIBOR plus 250 basis points and is payable quarterly.  
Additional interest in the form of a facility fee is paid quarterly on the unused portion of the commitment at 50 basis points.  
The credit agreement has no restrictive covenants.  No amounts were outstanding under this credit agreement as of 
December 31, 2010 or 2009.   

Our equity capital at December 3, 2010 was $2.5 billion, up from $2.2 billion at December 31, 2009.   Net income less cash 
dividend paid increased equity $180 million.  An increase in the fair value of available for sale securities was primarily 
responsible for a $119 million increase in accumulated other comprehensive income in 2010.  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.   

Based on asset size, we are the largest commercial bank that elected not to participate in the TARP Capital Purchase 
Program.  The decision not to participate in TARP was based on an evaluation of our capital needs at the time and in 
several capital stress environments.  We considered capital requirements for organic growth and potential acquisitions, the  

59  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
cost of TARP capital and a defined exit strategy when the cost of TARP capital increases substantially at the end of year 
five.   

On April 26, 2005, the Board of Directors authorized a share repurchase program, which replaced a previously authorized 
program.  The maximum of two million common shares may be repurchased.  The specific timing and amount of shares 
repurchased will vary based on market conditions, securities law limitations and other factors.  Repurchases may be made 
over time in open market or privately negotiated transactions.  The repurchase program may be suspended or discontinued 
at any time without prior notice.  Since this program began, 784,073 shares have been repurchased by the Company for $39 
million.  No shares were repurchased by the Company during 2010 and 2009. 

BOK Financial and subsidiary banks are subject to various capital requirements administered by federal agencies.  Failure 
to meet minimum capital requirements can result in certain mandatory and possibly 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. 

For a banking institution to qualify as well capitalized, its Tier 1, Total and Leverage capital ratios must be at least 6%, 
10% and 5%, respectively.  All of the Company’s banking subsidiaries exceeded the regulatory definitions of well 
capitalized.  The capital ratios for BOK Financial on a consolidated basis and the Banks are presented in Note 15 to the 
Consolidated Financial Statements.  At December 31, 2010 the pro forma combined Tier 1, Total and Leverage capital 
ratios for BOKF, NA were 10.72%, 14.23% and 7.38%, respectively. 

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 GAAP less intangible assets and equity which 
does not benefit common shareholders.  Equity that does not benefit common shareholders includes preferred equity and 
equity provided by the U.S. Treasury’s TARP program.  Tier 1 common equity is tier 1 equity as defined by banking 
regulations, adjusted for other comprehensive income (loss) and equity which does not benefit common shareholders.  
These non-GAAP measures are valuable indicators 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 (loss) in shareholders’ equity.  At December 31, 2010, BOK Financial’s tangible 
common shareholders’ equity ratio was 9.21% and tier 1 common equity ratio was 12.55%.  At December 31, 2009, BOK 
Financial’s tangible common shareholders’ equity ratio was 7.99% and tier 1 common equity ratio was 10.75%.   

Table 43 following provides a reconciliation of the non-GAAP measures with financial measures defined by GAAP. 

Table 43   Non-GAAP Measures 
                 (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 

Tier 1 common equity ratio: 
Tier 1 capital 

Less: Non-controlling interest 

Tier 1 common equity 

Risk weighted assets 

Tier 1 common equity ratio 

December 31, 

2010 

2009 

$  2,521,726 
349,404 
2,172,322 
23,941,603 
349,404 

 $  2,205,813 
       354,239 
    1,851,574 
  23,516,831 
       354,239 

$23,592,199 

  $23,162,592 

9.21% 

7.99% 

$  2,076,525 

$  1,876,778 

22,152 

19,561 

2,054,373 

1,857,217 

16,368,976 

17,275,808 

12.55% 

10.75% 

60  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Off-Balance Sheet Arrangements 

Bank of Oklahoma guarantees rents that originally totaled $28.7 million through September, 2017 to the City of Tulsa 
(“City”) as owner of a building immediately adjacent to the Bank’s main office for space currently rented by third-party 
tenants in the building.  All rent payments are current.  Remaining guaranteed rents totaled $20 million at December 31, 
2010.  Current leases expire or are subject to lessee termination options at various dates in 2012 through 2014.  Our 
obligation under this agreement would be affected by lessee decisions to exercise these options. 

In return for this guarantee, Bank of Oklahoma will receive 80% of net cash flow as defined in an agreement with the City 
through September, 2017 from rental of space that was vacant at inception of the agreement.  Approximately 42 thousand 
square feet of this additional space has been rented to outside parties since the date of the agreement.  The maximum 
amount that Bank of Oklahoma may receive under this agreement is $4.5 million.   

Aggregate Contractual Obligations 

BOK Financial has numerous contractual obligations in the normal course of business.  These obligations included 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 44 following summarizes payments due per these contractual obligations at December 31, 2010. 

Table 44   Contractual Obligations as of December 31, 2010 
                (In thousands) 

Less Than 
1 Year 

1 to 3 
Years 

4 to 5 
Years 

More Than 
5 Years 

Time deposits 
Other borrowings 
Subordinated debentures 
Operating lease obligations 
Derivative contracts 
Data processing contracts 
Total 

      $1,203,291 
159,961 
21,875 
14,905 
202,141 
17,128 
     $1,619,301 

        $853,214 
1,603 
43,750 
26,162 
59,976 
29,157 
      $1,013,862 

       $ 345,266      $ 660,517 
6,375 
270,365 
85,986 
4,126 
5,053 

1,050 
189,375 
22,043 
18,164 
8,215 
       $584,113 

    $1,032,422 

Total 

   $ 3,062,288 
168,989 
525,365 
149,096 
284,407 
59,553 
   $4,249,698 

Loan commitments 
Standby letters of credit 
Mortgage loans sold with recourse 
Alternative investment commitments 
Unfunded third-party private equity commitments 
Deferred compensation and stock-based compensation obligations 

$   5,193,545 
  534,565 
  289,021 
18,642 
13,936 
31,868 

Payments on time deposits and other borrowed funds include interest which has been calculated from rates at December 31, 
2010.  Many of these obligations have variable interest rates and actual payments will differ from the amounts shown on 
this table.  Obligations under derivative contracts used for interest rate risk management purposes are included with 
projected payments from time deposits and other borrowed funds as appropriate.   

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. 

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 $1.0 billion of the loan commitments expire within one year. 

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.  Amounts 
shown in the table exclude $69 million of cash margin which secures our obligations under these contracts. 

The Company has funded $39 million and has commitments to fund an additional $19 million for various alternative 
investments.  Alternative investments generally consist of limited partnership interests in or loans to entities that invest in  

61  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
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 $14 million as of December 31, 2010.  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. 

The Company has compensation and employment agreements with our President and Chief Executive Officer.  
Collectively, these agreements provide, among other things, that all unvested stock-based compensation shall fully vest 
upon his termination, subject to certain conditions.  These agreements provide for settlement in cash or other assets.  We 
currently have recognized a $24 million liability for these plans.  This liability would increase to $25 million if all awards 
were fully vested.  We also have obligations with respect to employee and executive benefit plans.  See Notes 11 and 12 to 
the Consolidated Financial Statements for additional information about our employee benefit plans.    

Recently Issued Accounting Standards 

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

62  

 
 
 
 
 
 
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,” 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 allowances for loan losses and off-balance sheet credit losses, allowance for uncertain tax positions and 
accruals for loss contingencies 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:  (1) the ability to 
fully realize expected cost savings from mergers within the expected time frames, (2) the ability of other companies on 
which BOK Financial relies to provide goods and services in a timely and accurate manner, (3) changes in interest rates and 
interest rate relationships, (4) demand for products and services, (5) the degree of competition by traditional and 
nontraditional competitors, (6) changes in banking regulations, tax laws, prices, levies, and assessments, (7) the impact of 
technological advances and (8) 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.  

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 prices, 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 guidelines established 
by the Board of Directors.  The Committee monitors projected variation in net interest revenue and net interest income and 
economic value of equity due to specified changes in interest rates.  The policy limit for net interest revenue variation is a 
maximum decline of 5% to an up or down 200 basis point change over twelve months.  These guidelines also set maximum 
levels for short-term borrowings, short-term assets, public funds, and brokered deposits, and establish minimum levels for 
un-pledged assets, among other things.  Compliance with these guidelines is reviewed monthly. 

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, net income and economic value of equity.  A simulation 
model is used to estimate the effect of changes in interest rates over the next 12 and longer time periods based on multiple 
interest rate scenarios.  Two specified interest rate scenarios are used to evaluate interest rate risk against policy guidelines.  
The first assumes a sustained parallel 200 basis point increase and the second assumes a sustained parallel 50 basis point  

63  

 
 
 
 
 
 
 
 
 
 
 
 
decrease in interest rates.  Management historically evaluated interest rate sensitivity for a sustained 200 basis point 
decrease in interest rates.  However, the results of a 200 basis point decrease in interest rates in the current low-rate 
environment are not meaningful.   

The Company’s primary interest rate exposures include the Federal Funds rate, which affects short-term borrowings,  the 
prime lending rate and LIBOR, which are the basis for much of the variable-rate loan pricing.  Additionally, mortgage rates 
directly affect the prepayment speeds for 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.  The model 
incorporates assumptions regarding the effects of changes in interest rates and account balances on indeterminable maturity 
deposits 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.  The effects of changes in interest rates on the value of mortgage 
servicing rights are excluded from Table 45 due to the extreme volatility over such a large rate range.  The effects of 
interest rate changes on the value of mortgage servicing rights and securities and derivative contracts identified as 
economic hedges are presented in Note 7 to the consolidated financial statements. 

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, the model cannot precisely estimate net interest revenue, net income or economic 
value of equity or precisely predict the impact of higher or lower interest rates on net interest revenue, net income or 
economic value of equity. 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. 

Table 45  Interest Rate Sensitivity 

(Dollars in thousands) 

200 bp Increase 

50 bp Decrease 

2010 

2009 

2010 

2009 

Anticipated impact over the next 12   
months on net interest revenue 

  $  8,235 

1.2% 

  $  (4,933) 
(0.3)%

$  (9,759) 

(1.4)% 

$  (8,032)
(1.2)%

Trading Activities 

BOK Financial enters into trading activities both as an intermediary for customers and for its own account.  As an 
intermediary, BOK Financial will take positions in securities, generally 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.  BOK Financial will also take trading positions in U.S. Treasury 
securities, mortgage-backed securities, municipal bonds and financial futures for its own account.  These positions are 
taken with the objective of generating trading profits.  Both of these activities involve interest rate risk. 

A variety of methods are used to manage 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. 
Hedges in either the futures or cash markets may be used to reduce the risk associated with some trading programs.  

Management uses a Value at Risk (“VAR”) methodology to measure the market risk inherent in its trading activities. VAR 
is calculated based upon historical simulations over the past five years using a variance / covariance matrix of interest rate 
changes.   It represents an amount of market loss that is likely to be exceeded only one out of every 100 two-week periods. 
Trading positions are managed within guidelines approved by the Board of Directors. These guidelines limit the VAR to 
$7.4 million. At December 31, 2010, the VAR was $1.8 million. The greatest value at risk during 2010 was $9.1 million. 
The value at risk guideline was exceeded with appropriate approvals by management to take advantage of wide yields 
available on certain securities during the year. 

64  

 
 
 
 
  
 
 
 
   
 
 
 
 
 
 
 
 
 
65  

 
ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA 

Report of Management on Financial Statements 

Management of BOK Financial is responsible for the preparation, integrity and fair presentation of the consolidated 
financial statements included in this annual report.  The consolidated financial statements have been prepared in accordance 
with accounting principles generally accepted in the United States and necessarily include some amounts that are based on 
our best estimates and judgments. 

Management, under the supervision of the Chief Executive Officer and the Chief Financial Officer, conducted an 
assessment of internal control over financial reporting as of December 31, 2010.  Internal control over financial reporting is 
a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of the 
Company’s consolidated financial statements for external purposes in accordance with accounting principles generally 
accepted in the United States.  In establishing internal control over financial reporting, management assesses risk and 
designs controls to prevent or detect financial reporting misstatements that may be consequential to a reader.  Management 
also assesses the impact of any internal control deficiencies and oversees efforts to improve internal control over financial 
reporting.  Because of inherent limitations, it is possible that internal controls may not prevent or detect misstatements, and 
it is possible that internal controls may vary over time based on changing conditions.  There have been no material changes 
in internal controls subsequent to December 31, 2010. 

The Risk Oversight and Audit Committee, consisting entirely of independent directors, meets regularly with management, 
internal auditors and the independent registered public accounting firm, Ernst & Young LLP, regarding management’s 
assessment of internal control over financial reporting.  

Report of Management on Internal Control over Financial Reporting  

Management 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.  Based on that assessment and criteria, management 
has determined that the Company maintained effective internal control over financial reporting as of December 31, 2010. 

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, 2010.  Their report, which expresses unqualified opinions on the 
effectiveness of the Company’s internal control over financial reporting as of December 31, 2010, is included in this annual 
report. 

66  

 
 
 
 
 
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm 

Report on Consolidated Financial Statements 

The Board of Directors and Shareholders of BOK Financial Corporation  

We have audited the accompanying consolidated balance sheets of BOK Financial Corporation as of December 31, 2010 
and 2009, and the related consolidated statements of earnings, shareholders' equity, and cash flows for each of the three 
years in the period ended December 31, 2010.  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, 2010 and 2009, and the consolidated results of its operations and 
its cash flows for each of the three years in the period ended December 31, 2010, in conformity with U.S. generally 
accepted accounting principles. 

As discussed in Note 1 to the consolidated financial statements, BOK Financial Corporation changed its method of 
accounting for non-controlling interests and changed its method of recognition and presentation of other-than-temporary 
impairments as of January 1, 2009. 

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, 2010, based on criteria 
established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the 
Treadway Commission and our report dated February 25, 2011 expressed an unqualified opinion thereon. 

/s/ Ernst & Young LLP 

Tulsa, Oklahoma 

February 25, 2011 

67  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm 

Report on Effectiveness of Internal Control over Financial Reporting 

The Board of Directors and Shareholders of BOK Financial Corporation  

We have audited BOK Financial Corporation’s internal control over financial reporting as of December 31, 2010, based on 
criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the 
Treadway Commission (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. 

In our opinion, BOK Financial Corporation maintained, in all material respects, effective internal control over financial 
reporting as of December 31, 2010, 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, 2010 and 2009, and the related 
consolidated statements of earnings, shareholders’ equity, and cash flows for each of the three years in the period ended 
December 31, 2010 of BOK Financial Corporation and our report dated February 25, 2011 expressed an unqualified 
opinion thereon. 

/s/ Ernst & Young LLP 

Tulsa, Oklahoma 

February 25, 2011 

68  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Year Ended December 31, 
2009 

2008 

  $  562,367 
10,102 
328,997 
10,143 
339,140 
2,883 
77 
914,569 

  $  726,405 
5,805 
313,360 
10,651 
324,011 
3,847 
1,577 
1,061,645 

Consolidated Statements of Earnings 
(In thousands, except share and per share data) 

Interest revenue 
Loans                                                                                   
Residential mortgage loans held for sale 
Taxable securities                                                                
Tax-exempt securities                                                           

$   

Total securities 

Trading securities 
Funds sold and resell agreements 
Total interest revenue 

Interest expense 
Deposits 
Borrowed funds 
Subordinated debentures 

Total interest expense 

Net interest revenue 
Provision for credit losses 
Net interest revenue after provision for credit losses 
Other operating revenue 
Brokerage and trading revenue 
Transaction card revenue 
Trust fees and commissions 
Deposit service charges and fees 
Mortgage banking revenue 
Bank-owned life insurance 
Other revenue 

Total fees and commissions 

Gain (loss) on other assets, net 
Gain (loss) on derivatives, net 
Gain on 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 
Professional fees and services 
Net occupancy and equipment 
Insurance 
FDIC special assessment 
Data processing and communications 
Printing, postage and supplies 
Net losses and operating expenses of repossessed assets 
Amortization of intangible assets 
Mortgage banking costs 
Change in fair value of mortgage servicing rights 
Visa retrospective responsibility obligation 
Other expense 

Total other operating expense 

Income before taxes 
Federal and state income tax 
Net income before non-controlling interest 
Net income (loss) attributable to non-controlling interest 
Net income attributable to BOK Financial Corp. 
Earnings per share: 

Basic 
Diluted 

Average shares used in computation: 

Basic 
Diluted 

Dividends declared per share 

See accompanying notes to consolidated financial statements. 

69  

2010 

522,559 
9,261 
308,215 
8,848 
317,063 
2,172 
27 
851,082 

106,265 
13,334 
22,431 
142,030 
709,052 
105,139 
603,913 

101,471 
112,302 
68,976 
103,611 
87,600 
12,066 
30,368 
516,394 
(1,161) 
4,271 
29,213 
(29,960) 
(2,151) 
(27,809) 
520,908 

164,362 
17,545 
22,298 
204,205 
710,364 
195,900 
514,464 

91,677 
105,517 
66,177 
115,791 
64,980 
10,239 
26,131 
480,512 
4,134 
(3,365) 
46,122 
(129,154) 
(94,741) 
(34,413) 
492,990 

380,517 
19,582 
30,243 
65,715 
24,040 
11,773 
81,292 
15,960 
11,400 
6,970 
36,304 
(12,124) 
– 
25,061 
696,733 
310,721 
106,705 
204,016 
3,438 
200,578 

2.96 
2.96 

401,864 
17,726 
30,217 
63,969 
24,320 
– 
87,752 
13,665 
34,483 
5,336 
40,739 
(3,661) 
– 
36,760 
753,170 
371,651 
123,357 
248,294 
1,540 
$    246,754 

  $ 
  $ 

3.63 
3.61 

  $ 

  $ 
  $ 

67,627,735 
67,831,734 
$         0.99 

67,375,387 
67,487,944 
  $        0.945 

288,924 
103,597 
22,262 
414,783 
646,862 
202,593 
444,269 

42,804 
100,153 
78,979 
117,528 
30,599 
10,681 
34,450 
415,194 
(9,406) 
1,299 
26,943 
(5,306) 
– 
(5,306) 
428,724 

352,947 
23,536 
27,045 
60,632 
11,988 
– 
78,047 
16,433 
1,019 
7,661 
22,513 
34,515 
(2,767) 
28,835 
662,404 
210,589 
64,909 
145,680 
(7,552) 
$  153,232 

$ 
$ 

2.27 
2.27 

67,302,990 
67,461,361 
 0.875 
$  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consolidated Balance Sheets 
(In thousands, except share data) 

Assets 
Cash and due from banks 
Funds sold and resell agreements 
Trading securities 
Securities: 

Available for sale 
Available for sale securities pledged to creditors 
Investment (fair value: 2010 – $346,105; 2009 – $246,704) 
Mortgage trading securities 
Total securities 

Residential mortgage loans held for sale 
Loans 
Less allowance for loan losses 
Loans, net of allowance 
Premises and equipment, net 
Accrued revenue receivable 
Goodwill 
Intangible assets, net 
Mortgage servicing rights 
Real estate and other repossessed assets 
Bankers’ acceptances 
Derivative contracts 
Cash surrender value of bank-owned life insurance 
Receivable on unsettled securities trades 
Other assets 

Total assets 

Liabilities and shareholders’ equity 
Noninterest-bearing demand deposits 
Interest-bearing deposits: 

Transaction 
Savings 
Time  (includes deposits carried at fair value:  2010 – $27,414; 2009 – $98,031) 
Total deposits 

Funds purchased and repurchase agreements 
Other borrowings 
Subordinated debentures 
Accrued interest, taxes and expense 
Bankers’ acceptances 
Due on unsettled securities trades 
Derivative contracts 
Other liabilities 

Total liabilities 
Shareholders’ equity: 

Common stock ($.00006 par value; 2,500,000,000 shares authorized;  

shares issued and outstanding:  2010 – 70,815,563; 2009 – 70,312,086) 

Capital surplus 
Retained earnings 
Treasury stock (shares at cost:  2010 – 2,607,874; 2009 – 2,509,279) 
Accumulated other comprehensive income (loss) 
Total shareholders’ equity 

Non-controlling interest 
Total equity 
Total liabilities and equity 

See accompanying notes to consolidated financial statements. 

December 31, 

2010 

2009 

$  

1,247,946 
21,458 
55,467 

$  

875,250 
45,966 
65,354 

9,171,908 
139,344 
339,553 
428,021 
10,078,826 
263,413 
10,643,036 
(292,971) 
10,350,065 
265,465 
148,940 
335,601 
13,803 
115,723 
141,394 
1,222 
270,445 
255,442 
135,059 
241,334 
23,941,603 

$  

8,726,135 
145,888 
240,405 
285,950 
9,398,378 
217,826 
11,279,698 
(292,095) 
10,987,603 
280,260 
108,822 
335,601 
18,638 
73,824 
129,034 
3,869 
343,782 
247,357 
– 
385,267 
23,516,831 

$  

$  

4,220,764 

$  

3,653,844 

9,255,362 
193,767 
3,509,168 
17,179,061 
2,283,780 
833,578 
398,701 
134,107 
1,222 
160,425 
215,420 
191,431 
21,397,725 

4 
782,805 
1,743,880 
(112,802) 
107,839 
2,521,726 
22,152 
2,543,878 
23,941,603 

$ 

7,930,439 
165,952 
3,767,993 
15,518,228 
2,471,743 
2,133,357 
398,539 
111,880 
3,869 
212,335 
308,360 
133,146 
21,291,457 

4 
758,723 
1,563,683 
(105,857) 
(10,740) 
2,205,813 
19,561 
2,225,374 
23,516,831 

$ 

70  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consolidated Statements of Cash Flows 
(In thousands) 

Cash Flows From Operating Activities: 
Net income before non-controlling interest 
Adjustments to reconcile net income before non-controlling interest to cash 
provided by operating activities: 
Provision for credit losses 
Change in fair value of mortgage servicing rights 
Unrealized (gains) losses from derivatives 
Depreciation and amortization 
Change in bank-owned life insurance 
Tax expense (benefit) on exercise of stock options 
Stock-based compensation 
Net (accretion) amortization of securities discounts and premiums 
Net realized losses (gains) on financial instruments and other assets 
Mortgage loans originated for resale 
Proceeds from sale of mortgage loans held for resale 
Capitalized mortgage servicing rights 
Change in trading securities, including mortgage trading securities 
Change in accrued revenue receivable 
Change in other assets 
Change in accrued interest, taxes and expense 
Change in other liabilities 

Net cash provided by operating activities 

Cash Flows From Investing Activities: 

Proceeds from sales of available for sale securities 
Proceeds from maturities of investment securities 
Proceeds from maturities of available for sale securities 
Purchases of investment securities 
Purchases of available for sale securities 
Change in amount receivable on unsettled security transactions 
Loans originated or acquired net of principal collected 
Net payments or proceeds on derivative asset contracts 
Net change in other investment assets 
Proceeds from disposition of assets 
Purchase of mortgage servicing rights 
Purchases of other assets 

Net cash provided by (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 borrowings, banks 
Change in amount due on unsettled security transactions 
Issuance of common and treasury stock, net 
Issuance of other borrowings, holding companies 
Pay down of other borrowings, holding companies 
Net change in derivative margin accounts 
Net payments or proceeds on derivative liability contracts 
Tax benefit on exercise of stock options 
Repurchase of common stock 
Dividends paid 

Net cash provided by (used in) 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 

Year ended December 31, 2010 
2009 

2008 

2010 

  $ 

248,294    $ 

204,016    $ 

145,680 

105,139 
(3,661)
(18,882)
58,987 
(12,066)
(425)
8,160 
105,680 
1,420 
(2,256,943)
2,246,228 
(27,603)
(139,319)
(40,118)
9,023 
22,227 
59,037 
365,178 

2,013,620 
111,976 
3,185,131 
(211,312)
(5,565,931)
(135,059)
469,223 
201,289 
– 
38,640 
(31,321)
(33,595)
42,661 

1,919,658 
(257,586)
(1,487,742)
(51,910)
8,552 
– 
– 
70,340 
(194,831)
425 
– 
(66,557)
(59,651)
348,188 
921,216 

  $  1,269,404    $ 

195,900 
(12,124) 
23,000 
87,771 
(10,351) 
276 
5,862 
35,636 
(46,318) 
(2,676,868) 
2,619,399 
(39,869) 
102,121 
(12,149) 
(166,375) 
(21,340) 
(7,571) 
281,016 

3,242,282 
91,562 
1,600,165 
(89,816) 
(6,966,218) 
– 
1,328,731 
497,034 
– 
26,640 
– 
(81,142) 
(350,762) 

202,593 
34,515 
35,408 
51,282 
(7,466)
(895)
4,798 
(18,106)
(30,981)
(1,201,613)
1,170,722 
(19,220)
(297,292)
41,570 
(82,948)
28,411 
25,607 
82,065 

3,499,128 
69,931 
1,091,054 
(65,506)
(5,576,035)
– 
(1,043,001)
63,109 
33 
39,522 
– 
(85,943)
(2,007,708)

1,950,871 
(1,407,380) 
112,797 
451,809 
5,198 
– 
(55,150) 
(162,138) 
(535,759) 
(276) 
– 
(63,952) 
296,020 
226,274 
694,942 
921,216    $ 

670,712 
842,408 
294,758 
(219,510)
7,743 
50,000 
(50,000)
244,413 
(44,064)
895 
(7,992)
(59,191)
1,730,172 
(195,471)
890,413 
694,942 

Cash paid for interest 
Cash paid for taxes 
Net loans and bank premises transferred to repossessed real estate 

  $ 

144,095    $ 
133,551   
72,845   

230,841    $ 
124,547   
132,758   

411,860 
114,120 
30,972 

See accompanying notes to consolidated financial statements. 

71  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consolidated Statements of Changes in Shareholders’ Equity and Non-controlling Interest 
(In thousands) 

Common Stock 

Shares 
69,465 
– 

Amount 
4 
– 

– 
– 
– 

– 
420 
– 
– 
– 
– 
69,885 

– 
– 
– 

427 
– 
– 
– 
– 
70,312 

– 
– 
– 

504 
– 
– 
– 
– 
70,816 

– 
– 
– 

– 
– 
– 
– 
– 
– 
4 

– 
– 
– 

– 
– 
– 
– 
– 
$4 

– 
– 
– 

– 
– 
– 
– 
– 
$4 

Accumulated 
Other 
Comprehensive
Income (Loss) 
$ (31,234) 
– 

– 
– 
(191,652) 

– 
– 
– 
– 
– 
– 
 (222,886) 

– 
– 
212,146 

– 
– 
– 
– 
– 
$ (10,740) 

– 
– 
118,579 

– 
– 
– 
– 
– 
$  107,839 

December 31, 2007 
Effect of implementing FAS 159, net of tax 
Comprehensive income (loss): 

Net income attributed to BOK Financial Corp. 
Net loss attributable to non-controlling interest 
Other comprehensive loss, net of tax 

    Comprehensive loss 
Treasury stock purchase 
Exercise of stock options 
Tax benefit on exercise of stock options 
Stock-based compensation 
Cash dividends on common stock 
Capital calls, net 
December 31, 2008 
Comprehensive income: 

Net income attributed to BOK Financial Corp. 
Net income attributable to non-controlling interest 
Other comprehensive income, net of tax 

    Comprehensive income 
Exercise of stock options 
Tax benefit on exercise of stock options 
Stock-based compensation 
Cash dividends on common stock 
Capital calls, net 
December 31, 2009 
Comprehensive income: 

Net income attributed to BOK Financial Corp. 
Net income attributable to non-controlling interest 
Other comprehensive income, net of tax 

    Comprehensive income 
Exercise of stock options 
Tax benefit on exercise of stock options 
Stock-based compensation 
Cash dividends on common stock 
Capital calls, net 
December 31, 2010 

See accompanying notes to consolidated financial statements. 

72  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Capital 
Surplus 
$  722,088 
– 

– 
– 
– 

– 
12,652 
895 
7,776 
– 
– 
  743,411 

– 
– 
– 

9,726 
(276) 
5,862 
– 
– 
  758,723 

– 
– 
– 

Retained 
Earnings 
$ 1,332,954 
62 

153,232 
– 
– 

– 
– 
– 
– 
(59,191) 
– 
  1,427,057 

200,578 
– 
– 

– 
– 
– 
(63,952) 
– 
  1,563,683 

246,754 
– 
– 

15,497 
425 
8,160 
– 
– 
$  782,805 

– 
– 
– 
(66,557) 
– 
  $  1,743,880 

Total 
Equity 
 $  1,954,233 
62 

153,232 
(7,552) 
(191,652) 
(45,972) 
(7,992) 
7,743 
895 
7,776 
(59,191) 
2,558 
1,860,112 

200,578 
3,438 
212,146 
416,162 
5,198 
(276) 
5,862 
(63,952) 
2,268 
2,225,374 

246,754 
1,540 
118,579 
366,873 
8,552 
425 
8,160 
(66,557) 
1,051 
$  2,543,878 

18,849 
– 

– 
(7,552) 
– 
(7,552) 
– 
– 
– 
– 
– 
2,558 
13,855 

– 
3,438 
– 
3,438 
– 
– 
– 
– 
2,268 
  19,561 

– 
1,540 
– 
1,540 
– 
– 
– 
– 
1,051 
22,152 

Treasury Stock 

Shares 
2,159 
– 

Amount 
  $  (88,428) 
– 

Total 
Shareholders’ 
Equity 

    $1,935,384 
62 

Non- 
Controlling 
Interest 

 $ 

– 
– 
– 

166 
87 
– 
– 
– 
– 
2,412 

– 
– 
– 

97 
– 
– 
– 
– 
2,509 

– 
– 
– 

99 
– 
– 
– 
– 
2,608 

– 
– 
– 

(7,992) 
(4,909) 
– 
– 
– 
– 
  (101,329) 

– 
– 
– 

(4,528) 
– 
– 
– 
– 
  (105,857) 

– 
– 
– 

(6,945) 
– 
– 
– 
– 
  $ (112,802) 

153,232 
– 
(191,652) 
(38,420) 
(7,992) 
7,743 
895 
7,776 
(59,191) 
– 
1,846,257 

200,578 
– 
212,146 
412,724 
5,198 
(276) 
5,862 
(63,952) 
– 
2,205,813 

246,754 
– 
118,579 
365,333 
8,552 
425 
8,160 
(66,557) 
– 
 $  2,521,726 

 $ 

73  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
  
  
  
 
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
  
  
  
 
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
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, including general practices of 
the banking industry. The consolidated financial statements include the accounts of BOK Financial and its subsidiaries, 
principally Bank of Oklahoma, N.A. and its subsidiaries (“BOk”), Bank of Texas, N.A., Bank of Arkansas, N.A., Bank of 
Albuquerque, N.A., Colorado State Bank and Trust, N.A., Bank of Arizona, N.A., Bank of Kansas City, N.A., and BOSC, 
Inc.  All significant intercompany transactions are eliminated in consolidation.   

The consolidated financial statements would also 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.  BOK Financial is not the primary 
beneficiary in any VIE that would be significant to its operations. 

Nature of Operations 

BOK Financial, through its subsidiaries, provides a wide range of financial services to commercial and industrial 
customers, other financial institutions and consumers throughout Oklahoma; Northwest Arkansas; Dallas, Fort Worth and 
Houston, Texas; Albuquerque, New Mexico; Denver, Colorado; Phoenix, Arizona; and Kansas City, Kansas/Missouri. 
These services include depository and cash management; lending and lease financing; mortgage banking; securities 
brokerage, trading and underwriting; and personal and corporate trust. 

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 dates. 
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 dates of acquisition.   

Goodwill and Intangible Assets  

Goodwill and intangible assets, which generally result from business combinations, are accounted for under the provisions 
of Accounting Standards Codification Topic 350, “Intangibles - Goodwill and Other.”  Goodwill is evaluated for each of 
BOK Financial’s business units for impairment annually or more frequently if conditions indicate impairment. The 
evaluation of possible impairment of intangible assets involves significant judgment based upon short-term and long-term 
projections of future performance. 

The fair value of BOK Financial’s reporting units is estimated by the discounted future earnings method. Income growth is 
projected for each unit and a terminal value is computed. This projected income stream is converted to current fair value by 
using a discount rate that reflects a rate of return required by a willing buyer.  Assumptions used to determine the fair value 
of the reporting units are compared to observable inputs, such as the market value of BOK Financial common stock.  
However, determination of the fair value of individual reporting units requires the use of significant unobservable inputs.  
There have been no changes in the techniques used to value goodwill. 

Core deposit intangible assets are amortized using accelerated methods over the estimated lives of the acquired deposits.  
These assets generally have a weighted average life of 5 years.  Other intangible assets are amortized using accelerated or 
straight-line methods, as appropriate, over the estimated benefit periods.  These periods range from 5 years to 20 years.  
The net book values of core deposit 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 periods) and resell agreements (which 
generally mature within one to 30 days) are considered cash equivalents. 

74  

 
 
 
 
 
 
 
 
 
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 market 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. Investment securities may be 
sold or transferred to trading or available for sale classification in certain limited circumstances specified in generally 
accepted accounting principles. 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 (loss) in shareholders’ 
equity.  

Unrealized losses on investment and available for sale securities are evaluated to determine if the losses are temporary 
based on various factors, including the cause of the loss, prospects for recovery, projected cash flows, collateral values, 
credit enhancements and other relevant factors, and management’s intent and ability not to sell the security until the fair 
value exceeds amortized cost.  A charge is recognized against earnings for all or a portion of the impairment if the loss is 
determined to be other than temporary.  Realized gains and losses on sales of securities are based upon the amortized cost 
of the specific security sold.  Available for sale securities are separately identified as pledged to creditors if the creditor has 
the right to sell or re-pledge the collateral. 

Certain mortgage-backed securities, identified as mortgage trading securities, have been designated as economic hedges of 
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. 

The purchase or sale of securities is recognized on a trade date basis. A receivable or payable is recognized for subsequent 
transaction settlement. BOK Financial will periodically commit to purchase to-be-announced mortgage-backed securities. 
These commitments are carried at fair value if they are considered derivative contracts.  

Derivative Instruments 

Derivative instruments may be used by the Company as part of its interest rate risk management programs or may be 
offered to customers.  All derivative instruments are carried at fair value.  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 to below investment grade or the credit ratings of other counterparties 
could decrease the fair value of our derivative liabilities.  Changes in fair value are generally reported in income as they 
occur. 

Derivative instruments used to manage interest rate risk consist primarily of interest rate swaps.  These contracts modify the 
interest income or expense of certain assets or liabilities.  Amounts receivable from or payable to counterparties are 
reported in interest income or expense using the accrual method.  Changes in fair value of interest rate swaps are reported in 
other operating revenue – gain (loss) on derivatives, net. 

In certain circumstances, an interest rate swap may be designated as a fair value hedge and may qualify for hedge 
accounting.  In these circumstances, changes in the full fair value of the hedged asset or liability, not only changes in fair 
value due to changes in the benchmark interest rate, is also recognized in earnings and may partially or completely offset 
changes in fair value of the interest rate swap.  A fair value hedge is considered effective if the cumulative fair value 
adjustment of the interest rate swap is within a range of 80% to 120% of the cumulative change in the fair value of the 
hedged asset or liability.  Any ineffectiveness, including ineffectiveness due to credit risk or ineffectiveness created when 
the fixed rate of the hedged asset or liability does not match the fixed rate of the interest rate swap, is recognized in 
earnings and reported Gain (loss) on derivatives, net. 

Interest rate swaps may be designated as cash flow hedges of variable rate assets or liabilities, or of anticipated transactions.  
Changes in the fair value of interest rate swaps 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. 

If a derivative instrument that had been designated as a fair value hedge is terminated or if the hedge designation is 
removed or deemed to no longer be effective, the difference between the hedged items carrying value and its face amount is 
recognized into income over the remaining original hedge period.  Similarly, if a derivative instrument that had been 
designated as a cash flow hedge is terminated or if the hedge designation is removed or deemed to no longer be effective, 
the amount remaining in accumulated other comprehensive income is reclassified to earnings in the same period as the 
hedged item. 

75  

 
 
 
 
 
 
 
 
 
 
 
BOK Financial also enters into mortgage loan commitments that are considered derivative instruments.  Forward sales 
contracts are used to 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, excluding the value of loan servicing rights or other 
ancillary values.  Changes in fair value of the mortgage loan commitments and forward sales contracts are reported in other 
operating revenue – mortgage banking revenue. 

BOK Financial offers programs to permit its customers to manage various risks, including fluctuations in energy, cattle and 
other agricultural products, interest rates and foreign exchanges rates, or to take positions in derivative contracts.  
Derivative contracts are executed between the customers and BOK Financial.  Offsetting contracts are executed between 
BOK Financial and other selected counterparties to minimize its risk of 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. 

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. 

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. 

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 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.   

Performing loans may be renewed under then current collateral value, debt service ratio and other underwriting standards.   
Nonperforming loans may be renewed and will remain on nonaccrual status.  Nonperforming loans renewed will be 
evaluated and may be charged off if 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.   

Interest is accrued at the applicable interest rate on the principal amount outstanding. Loans are placed on nonaccrual status 
when, in the opinion of management, full collection of principal or interest is uncertain. Interest previously accrued but not 
collected is charged against interest income when the loan is placed on nonaccrual status. Payments on nonaccrual loans are 
applied to principal or reported 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.   

Residential mortgage loans are primarily modified in accordance with U.S. government agency guidelines by reducing 
interest rates and extending the number of payments.  No unpaid principal or interest is forgiven.  Interest guaranteed by 
U.S. government agencies under residential mortgage loan programs continues to accrue based on the modified terms of the 
loan.  Renegotiated loans may be transferred to loans held for sale after a period of satisfactory performance.  If it becomes 
probable that all amounts due according to the modified loan terms will not be collect, the loan is placed on nonaccrual 
status and included in nonaccrual loans.  Commercial and commercial real estate loan are considered distressed when it 
becomes probable that we will not collect the full amount of contractual principal.  All distressed commercial and 
commercial real estate loans are placed on nonaccrual status.  Loans to distressed borrowers generally consist of extension 
of payment terms, not to exceed the final contractual maturity of the original loan.  Principle and interest is not forgiven, 
nor are interest rate concessions granted.  Consumer loans to troubled borrowers are not modified. 

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. 

Certain residential mortgage loans originated by the Company are held for sale and are carried at fair value based on sales 
commitments or market quotes. Changes in fair value are recorded in other operating revenue – mortgage banking revenue. 

Allowance for Loan Losses and Off-Balance Sheet Credit Losses 

Allowances for loan losses and off-balance sheet credit losses are assessed by management, based upon an ongoing 
quarterly evaluation of the probable estimated losses inherent in the portfolio, and include probable losses on both 
outstanding loans and unused commitments to provide financing. There have been no material changes in the approach or 
techniques utilized in developing the allowances for loan losses and off-balance sheet credit losses.  

76  

 
 
 
 
 
 
 
 
 
The allowance consists of specific allowances attributed to impaired loans that have not yet been charged down to amounts 
we expect to recover, general allowances attributed to unimpaired loans that are based upon migration factors and  
nonspecific allowances based on general economic, risk concentration and related factors.  

Internally risk graded loans are evaluated individually for impairment.  Non-risk graded loans are collectively evaluated for 
impairment through past-due status and other relevant factors.  Substantially all commercial and commercial real estate 
loans are risk graded.  Certain residential mortgage and consumer loans are also risk graded.  Certain commercial loans and 
most residential mortgage and consumer loans are small balance, homogeneous pools of loans that are not risk graded.  
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.  This is substantially the same criteria used to determine 
when a loan should be placed on nonaccrual status.  Specific allowances for impaired loans are measured by an evaluation 
of estimated future cash flows discounted at the loans’ initial effective interest rate, the fair value of collateral for certain 
collateral dependent loans, or historical statistics.  

General allowances for unimpaired loans are based on migration models.  Separate migration models are used to determine 
general allowances for commercial and commercial real estate loans, residential mortgage loans and consumer loans.  All 
commercial and commercial real estate loans are risk-graded based on an evaluation of the borrowers’ ability to repay.  
Risk grades are updated quarterly.  Migration factors are determined for each risk grade to determine the inherent loss 
based on historical trends.  An eight-quarter aggregate accumulation of net losses is used as a basis for the migration 
factors.  Losses incurred in more recent periods are more heavily weighted by a sum-of-periods-digits formula.  The higher 
of the current loss factors based on migration trends or a minimum migration factor based upon long-term history is 
assigned to each risk grade.  The resulting general allowances may be adjusted upward or downward by management to 
account for the limitations in migration models which are based entirely on historical data, such as their limited accuracy at 
the beginning and ending of credit cycles. 

The general allowance for residential mortgage loans is based on an eight-quarter average percent of loss.  The general 
allowance for consumer loans is based on an eight-quarter average percent loss with separate migration factors determined 
by major product line, such as indirect automobile loans and direct consumer loans. 

Nonspecific allowances are maintained for risks beyond factors specific to a particular loan or identified by the migration 
models.  These factors include trends in the economy in our primary lending areas, conditions in certain industries where 
we have a concentration and overall growth in the loan portfolio.  Evaluation of nonspecific factors considers the effect of 
the duration of the business cycle on migration factors and also considers current economic conditions and other factors. 

A provision for credit losses is charged against earnings in amounts necessary to maintain adequate allowances for loan and 
off-balance sheet credit losses. Loans are charged off 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. 
Loans are evaluated quarterly and charge-offs are taken in the quarter in which the loss is identified. Additionally, all 
unsecured or under-secured loans that are past due by 180 days or more are charged off within 30 days. Recoveries of loans 
previously charged off are added to the allowance. 

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 are not adjusted 
by the Company.  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.  
Updated appraisals are obtained at least annually or more frequently if market conditions indicate collateral values have 
declined.   

Transfers of Financial Assets 
BOK Financial transfers financial assets as part of its mortgage banking activities and periodically may transfer other 
financial assets.  Transfers are recorded as sales for financial reporting purposes when the criteria for surrender of control 
are met.  BOK Financial retains an obligation under underwriting representations and warranties related to residential 
mortgage loans transferred and may retain the right to service the assets and may incur a recourse obligation.  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 derecognized and any gain or loss on the sale is recognized in earnings.  
Subsequently, servicing rights and residual interests are carried at fair value with changes in fair value recognized in 
earnings as they occur.  A separate allowance is maintained as part of other liabilities for the Company’s credit risk on 
loans transferred subject to a recourse obligation.  Other liabilities also include an allowance for obligations related to 
residential mortgage loans transferred under certain underwriting representations and warranties.    

77  

 
 
 
 
 
 
 
 
Real Estate and Other Repossessed Assets 
Real estate and other repossessed assets are assets acquired in partial or total forgiveness of loans. These assets are carried 
at the lower of cost, which is determined by fair value at date of foreclosure less estimated disposal costs, 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.  Fair values 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.  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.  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.  Income generated by these assets is recognized as received, and operating expenses are 
recognized as incurred. 

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 7 years for software and 3 years to 10 years for 
furniture and equipment.  Repair and maintenance costs are charged to expense as incurred. 

Premises no longer used by the Company is 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. 

Mortgage Servicing Rights 

Mortgage servicing rights may be purchased or may be recognized when mortgage loans are originated pursuant to an 
existing plan for sale or, if no such plan exists, when the mortgage loans are sold.  Originated mortgage servicing rights are 
initially recognized at fair value.  Purchased servicing rights are initially recognized at purchase price.  All mortgage 
servicing rights are subsequently carried at fair value.  Changes in the fair value are recognized in earnings as they occur. 

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.  At least annually, we 
request estimates of fair value from outside sources to corroborate the results of the valuation model.  There have been no 
changes in the techniques used to value mortgage servicing rights. 

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. 

Income tax expense is based on an effective tax rate that considers statutory federal and state income tax rates and 
permanent differences between income and expense recognition for financial reporting and income tax purposes.  The 
amount of income tax expense recognized in any period may differ from amounts reported to taxing authorities. 

BOK Financial has an allowance for uncertain tax positions, which is 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.  The adequacy of this 
allowance is 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. 

Deferred tax assets and liabilities are determined based upon the difference between the values of the assets and liabilities 
as reflected 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.  As changes in tax law or rates are enacted, deferred tax assets and 
liabilities are adjusted through the provision for income taxes.  A valuation allowance is provided when it is more likely 
than not that some portion or the entire deferred tax asset will not be realized. 

78  

 
 
 
 
 
 
 
 
 
  
Employee Benefit Plans 
BOK Financial sponsors a defined benefit cash balance pension plan (“Pension Plan”), qualified profit sharing plan (“Thrift 
Plan”) and employee healthcare 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 
the lesser of the average remaining service periods of the participants or 10 years.  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.

Stock Compensation Plans 

BOK Financial awards stock options and non-vested common shares as compensation to certain officers.  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 current market value of BOK Financial common stock.  Non-vested shares 
generally cliff vest in 5 years. 

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.  

Certain executive officers may defer the recognition of income from stock-based compensation for income tax purposes 
and to diversify the deferred income into alternative investments.  Stock-based compensation granted to these officers is 
considered liability awards.  Changes in the fair value of liability awards are recognized as compensation expense in the 
period of the change. 

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 held for trading purposes and derivatives held 
for customer risk management programs, including credit losses on trading securities and derivatives, commissions earned 
from the retail sale of securities, mutual funds and other financial instruments, and underwriting and financial advisory fees. 

Trust fees and commissions include revenue 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 our published deposit account 
agreement and disclosure statement for retail accounts or contractual agreement 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.       

79  

 
 
 
 
 
 
 
 
 
 
 
Effect of Recently Issued Statements of Financial Accounting Standards 

Financial Accounting Standards Board 

FASB Accounting Standards Update No. 2009-16, “Accounting for Transfers of Financial Assets” (“ASU 2009-16”) 

ASU 2009-16 codifies Statement of Financial Accounting Standards No. 166, “Accounting for Transfers of Financial 
Assets – an amendment to Statement No. 140,” which amended Financial Accounting Standards No. 140, “Accounting for 
Transfers and Servicing of Financial Assets and Extinguishments of Liabilities,” to enhance reporting about transfers of 
financial assets, including securitizations, and where companies have continuing exposure to the risks related to transferred 
financial assets.  The standard eliminates the concept of a “qualifying special-purpose entity” and changes the requirements 
for derecognizing financial assets. It also requires additional disclosures about all continuing involvement with transferred 
financial assets including information about gains and losses resulting from transfers during the period. ASU 2009-16 was 
effective January 1, 2010 and did not have a significant impact on the Company’s financial statements.    

FASB Accounting Standards Update No. 2009-17, “Improvements to Financial Reporting by Enterprises Involved With Variable 
Interest Entities” (“ASU 2009-17”)  

ASU 2009-17 codifies Statement of Financial Accounting Standards No. 167, “Amendments to FASB Interpretation No. 
46(R),” (“FAS 167”) which amended Financial Accounting Standards Interpretation No. 46 (Revised December 2003), 
“Consolidation of Variable Interest Entities,” to change how a company determines when an entity that is insufficiently 
capitalized or is not controlled through voting (or similar rights) should be consolidated. The determination of whether a 
company is required to consolidate an entity is based on, among other things, an entity’s purpose and design and a 
company’s ability to direct the activities of the entity that most significantly impact the entity’s economic performance. The 
standard requires additional disclosures about the reporting entity’s involvement with variable-interest entities and any 
significant changes in risk exposure due to that involvement as well as its affect on the entity’s financial statements. ASU 
2009-17 was effective January 1, 2010 and did not have a significant impact on the Company’s financial statements.   

FASB Accounting Standards Update No. 2010-06, “Improving Disclosures About Fair Value Measurements” (“ASU 2010-
06”) 

ASU 2010-06 amends Accounting Standards Codification (“ASC”) 820, “Fair Value Measurements,” to add new disclosure 
requirements about transfers into and out of Levels 1 and 2, as defined in ASC 820 and separate disclosures about 
purchases, sales, issuance and settlements relating to Level 3 measurements, as defined in ASC 820.  It also clarified 
existing fair value disclosures about the level of disaggregation and about inputs and valuation techniques used to measure 
fair value.  ASU 2010-06 was effective for the Company on January 1, 2010 with exception of the requirement to provide 
Level 3 activity of purchases, sales, issuances, and settlement on a gross basis, which will be effective for the Company on 
January 1, 2011 and did not have a significant impact on the Company’s financial statements. 

FASB Accounting Standards Update No. 2010-09, “Amendments to Certain Recognition and Disclosure Requirements” 
(“ASU 2010-09”) 

On February 24, 2010, the FASB issued ASU 2010-09, which amends FASB Accounting Standards Codification 855, 
“Subsequent Events,” to address certain implementation issues related to an entity’s requirement to perform and disclose 
subsequent events procedures.  ASU 2010-09 added a definition of the term “SEC filer” and requires SEC filers and certain 
other entities to evaluate subsequent events through the date the financial statements are issued.  It also exempts SEC filers 
from disclosing the date through which subsequent events have been evaluated.  The guidance was effective for the 
Company on January 1, 2010. 

FASB Accounting Standards Update No. 2010-10, “Amendments to Statement 167 for Certain Investment Funds” (“ASU 
2010-10”) 

On February 25, 2010, the FASB issued ASU 2010-10, which amends certain provisions of Statement 167 (codified in 
ASC 810-10).  The ASU defers the effective date of FAS 167 for reporting enterprise’s interest in certain entities and for 
certain money market mutual funds.  In addition, the ASU amends certain provisions of ASC 810-10 to change how a 
decision maker or service provider determines whether its fee is a variable interest.  ASU 2010-10 affects the Company’s 
evaluation of its involvement as administrator and investment advisor to Cavanal Hill money market funds and was 
effective for the Company as of January 1, 2010. 

80  

 
 
 
  
 
 
 
 
 
 
 
 
FASB Accounting Standards Update No. 2010-20 “Disclosures about the Credit Quality of Financing Receivables and the 
Allowance for Credit Losses” (“ASU 2010-20”) 

On July 21, 2010, the FASB issued ASU 2010-20 which expanded the disclosure requirements concerning the credit 
quality of an entity’s financing receivables and its allowance for credit losses.  ASU 2010-20 is effective for the Company 
as of December 31, 2010 as it relates to disclosures required as of the end of the reporting period.  Disclosure related to 
activity during the reporting period of the Company will be required on or after January 1, 2011.   

FASB Accounting Standards Update No. 2010-28 “Intangibles – Goodwill and Other (Topic 530): When to Perform Step 2 of the 
Goodwill Impairment Test for Reporting Units with Zero or Negative Carrying Amounts” (“ASU 2010-28”) 

On December 17, 2010, the FASB issued ASU 2010-28, a consensus of the FASB Emerging Issues Task Force.  ASU 2010-28 will 
modify Step 1 of the goodwill impairment test for reporting units with zero or negative carrying amounts.  For those reporting units, an 
entity is required to perform a Step 2 of the goodwill impairment test if it is more likely than not that a goodwill impairment exists and 
the entity will no longer be able to assert that a reporting unit is not required to perform a Step 2 because the carrying amount of the 
reporting unit is zero or negative.   The amendment was effective for the Company January 1, 2011 and is not expected to have a 
significant impact on the consolidated financial statements. 

FASB Accounting Standards Update No. 2011-01 “Receivables (Topic 310): Deferral of the Effective Date of Disclosures about 
Troubled Debt Restructuring in Update No. 2010-20” (“ASU 2011-01”) 

On January 20, 2011, the FASB issued ASU 2011-01, which temporarily defers the effective date in ASU 2010-20 for disclosure about 
troubled debt restructuring by creditors to coincide with the effective date of the proposed guidance clarifying what constitutes a 
troubled debt restructuring.   

81  

 
 
 
 
 
(2) Securities 

Investment Securities 

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

2010 

December 31, 

Amortized 
Cost 

Fair 
Value 

Not Recognized in OCI (1)  
Gross Unrealized 
Loss 
Gain 

  Amortized 

Cost 

2009 

Fair 
Value 

Not Recognized in OCI (1)
Gross Unrealized 
Loss 
Gain 

Municipal and other 
tax-exempt 

Other debt securities 

Total 

$ 184,898 
154,655 

$ 3,912 
4,505 
  $  339,553    $  346,105    $  8,417 

$ 188,577 
157,528 

$     (233) 
(1,632) 
  $  (1,865) 

$  232,568  $  238,847 
7,857 

$  6,336 
20 
  $  240,405    $  246,704    $  6,356 

7,837 

$        (57) 
– 
(57) 

  $ 

(1)  Other comprehensive income 

The amortized cost and fair values of investment securities at December 31, 2010, 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 

Municipal and other tax-exempt: 

Amortized cost 
Fair value 
Nominal yield¹ 
Other debt securities: 
Amortized cost 
Fair value 
Nominal yield 

Total fixed maturity securities: 

Amortized cost 
Fair value 
Nominal yield 

Total investment securities: 

Amortized cost 
Fair value 
Nominal yield 

$   56,512 
57,026 
4.63 

$  

3,446 
3,446 
2.01 

$   59,958 
60,472 
4.48 

$  93,732 
96,409 
4.58 

$  25,089 
25,093 
5.49 

$  118,821 
121,502 
4.77 

$   27,950 
28,516 
5.44 

$    22,522 
22,171 
5.69 

$    50,472 
50,687 
5.55 

$    6,704 
6,626 
6.28 

  $  184,898 
188,577 
4.79 

$  103,598 
106,818 
6.31 

$  110,302 
113,444 
6.31 

$  154,655 
157,528 
5.99 

$  339,553 
346,105 
5.34 

  $  339,553 
346,105 
5.34 

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. 

Weighted 
Average 
Maturity² 

2.89 

11.02 

6.59 

82  

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

December 30, 2010 

Recognized in OCI (1) 

Amortized
Cost 

Fair 
Value 

Gross Unrealized 
Loss 
Gain 

Other Than 
Temporary 
Impairment 

Municipal and other tax-exempt 
Residential mortgage-backed securities: 

  $  72,190    $  72,942    $  1,172   $ 

(315) 

  $ 

(105) 

U. S. agencies: 
  FNMA 
  FHLMC 
  GNMA 
  Other 
Total U.S. agencies 
Private issue: 
Alt-A loans 
Jumbo-A loans 
Total private issue 

Total residential mortgage-backed securities 
Other debt securities 
Federal Reserve Bank stock 
Federal Home Loan Bank stock 
Perpetual preferred stock 
Equity securities and mutual funds 

Total 

(1)  Other comprehensive income 

4,791,438 
2,545,208 
765,046 
92,013 
8,193,705 

4,925,693 
2,620,066 
801,993 
99,157 
8,446,909 

147,024
83,341
37,193
7,144
274,702

(12,769) 
(8,483) 
(246) 
– 
(21,498) 

– 
– 
– 
– 
– 

220,332 
494,098 
714,430 
8,908,135 
6,401 
33,424 
42,207 
19,511 
29,181 

(353) 
(14,067) 
(14,420) 
(35,918) 
– 
– 
– 
– 
(327) 
$9,111,049  $9,311,252    $293,592    $ (36,560) 

186,674 
457,535 
644,209 
9,091,118 
6,401 
33,424 
42,207 
22,114 
43,046 

–
923
923
275,625
–
–
–
2,603
14,192

(33,305) 
(23,419) 
(56,724) 
(56,724) 
– 
– 
– 
– 
– 
  $  (56,829) 

December 31, 2009 

Recognized in OCI (1) 

Amortized 
Cost 

Fair 
Value 

Gross Unrealized 
Loss 
Gain 

Other Than 
Temporary 
Impairment 

U.S. Treasury 

Municipal and other tax-exempt 
Residential mortgage-backed securities: 

  $ 

6,998    $ 

7,020    $    22   $ 

61,268 

62,201 

1,244

  $  

–  
(311) 

U. S. agencies: 
  FNMA 
  FHLMC 
  GNMA 
  Other 
Total U.S. agencies 
Private issue: 
Alt-A loans 
Jumbo-A loans 
Total private issue 

Total residential mortgage-backed securities 
Other debt securities 
Federal Reserve Bank stock 
Federal Home Loan Bank stock 
Perpetual preferred stock 
Equity securities and mutual funds 

Total 

(1)  Other comprehensive income 

3,690,280 
2,479,522 
1,221,577 
254,438 
7,645,817 

3,782,180 
2,547,978 
1,225,042 
254,128 
7,809,328 

98,764
70,024
10,371
5,080
184,239

(6,864) 
(1,568) 
(6,906) 
(5,390) 
(20,728) 

–
–
–

262,106 
699,272 
961,378 
8,607,195 
17,174 
32,526 
78,999 
19,224 
35,414 

(13,305) 
(71,023) 
(84,328) 
184,239 (105,056) 
(27) 
– 
– 
– 
(524) 
$8,858,798   $8,872,023  $  203,831 $(105,918) 

195,808 
596,554 
792,362 
8,601,690 
17,147 
32,526 
78,999 
22,275 
50,165 

–
–
–
3,051
15,275

(52,993) 
(31,695) 
(84,688) 
(84,688) 
– 
– 
– 
– 
– 
  $(84,688) 

83  

– 
– 

– 
– 
– 
– 
– 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The amortized cost and fair values of available for sale securities at December 31, 2010, 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 Years6 

Total 

Municipal and other tax-exempt: 

Amortized cost 
Fair value 
Nominal yield¹ 
Other debt securities: 
Amortized cost 
Fair value 
Nominal yield¹ 

Total fixed maturity securities: 

Amortized cost 
Fair value 
Nominal yield 

Mortgage-backed securities: 

Amortized cost 
Fair value 
Nominal yield4 

Equity securities and mutual funds: 

Amortized cost 
Fair value 
Nominal yield 

Total available-for-sale securities: 

Amortized cost 
Fair value 
Nominal yield 

$ 

$   

$ 

655 
659 
3.66 

1 
1 
7.61 

656 
660 
3.67 

$ 

  6,554 
6,933 
4.07 

$ 

  13,749 
14,492 
4.09 

$   

$   

– 
– 
– 

$   

– 
– 
– 

6,554 
6,933 
4.07 

$ 

  13,749 
14,492 
4.09 

$   51,232 
50,858 
1.03 

$    6,400 
6,400 
1.89 

$   57,632 
57,258 
1.12 

$  

$  

$  

72,190 
72,942 
1.91 

6,401 
6,401 
1.89 

78,591 
79,343 
1.91 

$  8,908,135 
9,091,118 
3.98 

$ 

124,323 
140,791 
2.15 

$   9,111,049 
9,311,252 
3.93 

Weighted 
Average 
Maturity5 

19.73 

32.56 

20.77 

² 

³ 

¹  Calculated on a taxable equivalent basis using a 39% effective tax rate. 
²  The average expected lives of mortgage-backed securities were 2.92 years based upon current prepayment assumptions. 
³  Primarily restricted common stock of U.S. government agencies 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. 

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. 

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 (benefit) 

2010 

2009 

2008 

  $ 1,973,005 
26,207 
3,029 

  $3,242,282 
63,859 
1,390 

  $ 3,499,128 
21,128 
11,932

7,693 

24,300 

2,736 

Gains and losses on sales of available for sale securities are realized on settlement date. 

Gross realized gains for the year ended December 31, 2008 exclude $6.8 million gain from the redemption of Visa, Inc. 
Class B common stock.   

In addition to securities that have been reclassified as pledged to creditors, securities with an amortized cost of $5.3 billion 
and $5.1 billion at December 31, 2010 and 2009, respectively, have been pledged as collateral for repurchase agreements, 
public and trust funds on deposit and for other purposes, as required by law. The secured parties do not have the right to sell 
or re-pledge these securities. 

84  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Temporarily Impaired Securities as of December 31, 2010 
(In thousands) 

Number 
of  
Securities 

Less Than 12 Months 
Fair 
Value 

Unrealized 
Loss 

12 Months or Longer 
Fair 
Value 

Unrealized 
Loss 

Total 

Fair 
Value 

Unrealized 
Loss 

Investment: 

Municipal and other tax- 

exempt 

Other 

Total investment 

Available for sale: 

Municipal and other tax-

exempt 

Residential mortgage-

backed securities: 
U. S. agencies: 
FNMA 
FHLMC 
  GNMA 
Total U.S. agencies 
Private issue: 

Alt-A loans 
Jumbo-A loans 
Total private issue 

Total residential 

mortgage-backed 
securities 

Equity securities and     
mutual funds 

Total available for sale 

Total 

 37 
15 
52 

42 

26 
12 
3 
41 

22 
53 
75 

$ 12,482 
80,698 
93,180 

$  211 
1,632 
1,843 

$ 

786 
– 
786 

$  22 
– 
22 

  $ 

  $ 

13,268 
80,698 
93,966 

233 
1,632 
1,865 

22,271 

171 

25,235 

249 

47,506 

420 

  1,099,710 
491,776 
5,681 
  1,597,167 

12,769 
8,483 
246 
21,498 

– 
– 
– 
– 

– 
– 
– 
– 

– 
– 
– 

– 
– 
– 

186,675 
417,917 
604,592 

33,658 
37,486 
71,144 

1,099,710 
491,776 
5,681 
1,597,167 

186,675 
417,917 
604,592 

12,769 
8,483 
246 
21,498 

33,658 
37,486 
71,144 

116 

  1,597,167 

21,498 

604,592 

71,144 

2,201,759 

92,642 

2 
    160 
    212 

– 
    1,619,438 
  $ 1,712,618 

– 
  21,669 
  $ 23,512 

2,878 
    632,705 
  $ 633,491 

327 
71,720 
$ 71,742 

2,878 
    2,252,143 
  $ 2,346,109 

327 
  93,389 
  $  95,254 

Temporarily Impaired Securities as of December 31, 2009 
(In thousands) 

Number 
of  
Securities 

Less Than 12 Months 
Fair 
Value 

Unrealized 
Loss 

12 Months or Longer 
Fair 
Value 

Unrealized 
Loss 

Total 

Fair 
Value 

Unrealized 
Loss 

Investment: 

 Municipal and other tax 

exempt 

 15 

$ 

1,490  $ 

14 

$ 

  2,991 

$ 

43 

$ 

4,481  $   

57 

Available for sale: 

Municipal and other tax-

exempt 

Residential mortgage-

backed securities: 
U. S. agencies: 
FNMA 
FHLMC 
  GNMA 
  Other 
Total U.S. agencies 
Private issue: 

Alt-A loans 
Jumbo-A loans 
Total private issue 

27 

21 
8 
16 
4 
49 

21 
65 
86 

Total residential 

mortgage-backed 
securities 

Other debt securities 
Equity securities and      

mutual funds 

Total available for sale 

Total 

  135 
5 

4 
    171 
    186 

34,373 

265 

657 

46 

35,030 

311 

497,659 
212,618 
460,144 
87,434 
1,257,855 

6,864 
1,568 
6,906 
5,390 
20,728 

– 
– 
– 
– 
– 

– 
– 
– 
– 
– 

– 
– 
– 

– 
– 
– 

195,808 
596,554 
792,362 

66,298 
102,718 
169,016 

497,659 
212,618 
460,144 
87,434 
1,257,855 

195,808 
596,554 
792,362 

6,864 
1,568 
6,906 
5,390 
20,728 

66,298 
102,718 
169,016 

1,257,855 
8,116 

20,728 
26 

792,362 
31 

169,016 
1 

2,050,217 
8,147 

189,744 
27 

524 
2,790 
    1,303,134 
  21,543 
$  1,304,624  $    21,557 

– 
    793,050 
$   796,041 

– 
169,063 
$169,106 

524 
2,790 
    2,096,184 
  190,606 
$   2,100,665  $    190,663 

85  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
   
 
 
 
 
 
On a quarterly basis, the Company performs separate evaluations of impaired debt and equity securities to determine if the 
unrealized losses are 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, regulatory and 
capital requirements and securities portfolio management.  During 2009, the Company recognized a $1.3 million other-
than-temporary charge on $91 million of impaired debt securities that it intended to sell and that were subsequently sold 
during that year.  At December 31, 2010, the Company does 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 the Company will not be required 
to sell impaired securities before fair value recovers, which may be maturity.   

For all impaired debt securities for which there was 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 are considered temporary 
unless specific contrary information is identified.  None of the debt securities rated investment grade were considered to be 
other-than-temporarily impaired at December 31, 2010. 

As of December 31, 2010, the composition of the Company’s securities portfolio by the lowest current credit rating 
assigned by any of the three nationally-recognized rating agencies is as follows (in thousands): 

1
U.S. Govt / GSE 

AAA - AA 

A - BBB 

Below Investment Grade 

Not Rated 

Total 

Amortized 

Fair 

Amortized 

Fair 

Amortized 

Fair 

Amortized 

Fair 

Amortized 

Cost 

Value 

Cost 

Value 

Cost 

Value 

Cost 

Value 

Cost 

Fair 

Value 

Amortized 

Cost 

Fair 

Value 

Investment: 

Municipal and other tax-

exempt 

$           – 

$           – 

$ 61,801 

$ 63,067 

$ 35,341 

$ 36,024 

$           – 

$           – 

$ 87,756 

$ 89,486 

$ 184,898 

$ 188,577 

Other debt securities 

– 

– 

148,331 

151,200 

1,350 

1,350 

– 

– 

4,974 

4,978 

154,655 

157,528 

Total 

$           – 

$           –  $ 210,132  $ 214,267 

$ 36,691 

$ 37,374 

$           – 

$           – 

$ 92,730 

$94,464 

$339,553 

$346,105 

Available for Sale: 

Municipal and other tax-

exempt 

$           – 

$           – 

$50,579 

$51,279 

$8,085 

$8,119 

$11,553 

$11,443 

$1,973 

$2,101 

$72,190 

$72,942 

Residential mortgage-

backed securities: 

U. S. agencies: 

  FNMA 

  FHLMC 

  GNMA 

  Other 

4,791,438 

4,925,693 

2,545,208 

2,620,066 

765,046 

801,993 

92,013 

99,157 

Total U.S. agencies 

8,193,705 

8,446,909 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

Private issue: 

Alt-A loans 

Jumbo-A loans 

Total private issue 

Total residential  

mortgage-backed 

– 

– 

– 

– 

– 

– 

3,999 

3,784 

10,875 

10,737 

205,458 

172,153 

56,674 

56,081 

120,987 

113,617 

316,437 

287,837 

60,673 

59,865 

131,862 

124,354 

521,895 

459,990 

securities 

8,193,705 

8,446,909 

60,673 

59,865 

131,862 

124,354 

521,895 

459,990 

Other debt securities 

– 

– 

6,400 

6,400 

Federal Reserve Bank 

stock 

33,424 

33,424 

Federal Home Loan Bank 

stock 

42,207 

42,207 

Perpetual preferred stock 

Equity securities and 

mutual funds 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

19,511 

22,114 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

1 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

– 

1 

– 

– 

– 

4,791,438 

4,925,693 

2,545,208 

2,620,066 

765,046 

92,013 

801,993 

99,157 

8,193,705 

8,446,909 

220,332 

494,098 

186,674 

457,535 

714,430 

644,209 

8,908,135 

9,091,118 

6,401 

6,401 

33,424 

33,424 

42,207 

19,511 

42,207 

22,114 

29,181 

43,046 

29,181 

43,046 

Total 

  $8,269,336  $  8,522,540 

  $117,652   $117,544   $ 159,458 

  $154,587   $  533,448 

  $  471,433 

  $ 

31,155    $ 

45,148 

  $  9,111,049    $  9,311,252 

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 government-sponsored enterprises. 

86  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
At December 31, 2010, approximately $522 million of the portfolio of privately issued mortgage-backed securities (based 
on amortized cost after impairment charges) was rated below investment grade by at least one of the nationally-recognized 
rating agencies.  The aggregate unrealized loss on these securities totaled $62 million.  Ratings by the nationally recognized 
rating agencies are subjective in nature and accordingly ratings can vary significantly amongst the agencies.  Limitations 
generally expressed by the rating agencies include statements that ratings do not predict the specific percentage default 
likelihood over any given period of time and that ratings do not opine on expected loss severity of an obligation should the 
issuer default.  As such, the impairment of securities rated below investment grade by at least one of the nationally-
recognized rating agencies was evaluated to determine if management expects not to recover the entire amortized cost basis 
of the security.  This evaluation was based on projections of estimated cash flows based on individual loans underlying 
each security using current and anticipated increases in unemployment and default rates, decreases in housing prices and 
estimated liquidation costs at foreclosure.  The primary assumptions used in this evaluation were: 

•  Unemployment rates – increasing to 10% over the next 12 months, dropping to 8% over the following 21 months, 
and holding at 8% thereafter.  At December 31, 2009, we assumed that unemployment rate would increase to 
10.5% over the next 12 months, then decreases to 8% over the following 12 months and hold at 8% thereafter. 

•  Housing price depreciation – starting with current depreciated housing prices based on information derived from 
the Federal Housing Finance Agency data, decreasing by an additional 5% over the next twelve months and 
holding at that level thereafter.  At December 31, 2009, we assumed that housing prices would decrease an 
additional 7.5% over the next twelve months and hold at that level thereafter. 
Estimated Liquidation Costs – held constant at 25% to 30% for Jumbo-A loans and 35% to 38% for Alt-A loans 
of the then-current depreciated housing price at estimated foreclosure date.  At December 31, 2009, we assumed 
that liquidation costs would be 27% for both Jumbo-A and Alt-A loans. 

• 

•  Discount rates – estimated cash flows were discounted at rates that range from 2.69% to 6.00% based on our 

current expected yields. 

We also consider the adjusted loan-to-value ratio and credit enhancement coverage ratio as part of the assessment of the 
cash flows available to recover the amortized cost of the debt securities.  Each factor is considered in the evaluation. 

Adjusted loan-to-value ratio is an estimate of the current collateral value available to support the realizable value of the 
security.  The Company calculates the adjusted loan-to-value ratio for each security using loan-level data.  The adjusted 
loan-to-value ratio is the original loan-to-value ratio adjusted for market-specific home price depreciation and the credit 
enhancement on the specific tranche of the security owned by the Company.  The home price depreciation is derived from 
the Federal Housing Finance Agency (“FHFA”).  FHFA provides historical information on home price depreciation at both 
the Metropolitan Statistical Area (“MSA”) and state level.  This information is matched to each loan to calculate the home 
price depreciation.  Data is accumulated from the loan level to determine the adjusted loan-to-value ratio for the security as 
a whole.  The Company believes that an adjusted loan-to-value ratio above 85% provides evidence that the collateral value 
may not provide sufficient cash flows to support our carrying value.  The 85% guideline provides for further home price 
depreciation in future periods beyond our assumptions of current loss trends for residential real estate loans and is 
consistent with current underwriting standards used by the Company to originate new residential mortgage loans.   

A distribution of the amortized cost (after recognition of the other-than-temporary impairment) and fair value by adjusted 
loan to value ratio for our below investment grade private label residential mortgage-backed securities is as follows (in 
thousands):   

Adjusted LTV Ratio 
< 70 % 
70 < 75 
75 < 80 
80 < 85 
>= 85 
Total 

Number of 
Securities 
4 
2 
1 
8 
13 
28 

Amortized Cost 
21,766 
  $ 
44,075 
11,080 
183,152 
261,822 
521,895 

 $ 

Credit Losses Recognized 

Year ended  
December 31, 2010 

Life-to-date 

Fair Value 

Number of 
Securities 

  $ 

 $ 

21,214    
40,908
11,242
160,683
225,943
459,990   

– 
– 
– 
7 
11 
18 

Amount 

  $ 

 $ 

– 
– 
– 
8,513 
17,950 
26,463 

Number of 
Securities 

– 
– 
– 
7 
12 
19 

Amount 

  $ 

 $ 

– 
– 
– 
10,843 
40,762 
51,605 

Credit enhancement coverage ratio is an estimate of credit enhancement available to absorb current projected losses within 
the pool of loans that support the security.  The Company acquires the benefit of credit enhancement by investing in super-
senior tranches for many of these mortgage-backed securities.  Subordinated tranches held by other investors are 
specifically designed to absorb losses before the super-senior tranches which effectively doubled the typical credit support 
for these types of bonds.  Current projected losses consider depreciation of home prices based on FHFA data, estimated 
costs and additional losses to liquidate collateral and delinquency status of the individual loans underlying the security.  
Management believes that a credit enhancement coverage ratio below 1.50 provides evidence that current credit 
enhancement may not provide sufficient cash flows of the individual loans to support our carrying value at the security 
level.  The credit enhancement coverage ratio guideline of 1.50 times is based on standard underwriting criteria which 
consider loans with coverage ratios of 1.20 to 1.25 times to be well-secured.   

87  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
  
  
  
  
  
 
 
Additional evidence considered by the Company is the adjusted loan-to-value ratio and the FICO score of individual 
borrowers whose loans are still performing within the collateral pool as forward-looking indicators of possible future losses 
that could affect our evaluation.   

Based upon projected declines in expected cash flows from certain private-label residential mortgage-backed securities, the 
Company recognized $26.5 million of credit loss impairment in earnings on these securities during 2010.  Additional 
impairment based on the difference between the total unrealized losses and the estimated credit losses on these securities 
was charged against other comprehensive income, net of deferred taxes.  In addition to the other-than-temporary 
impairment charges on private-label mortgage-backed securities, the Company recognized $1.0 million in impairment 
charges on certain below investment grade municipal securities during 2010 based on management’s assessment of on-
going financial difficulties and recent court developments regarding the municipal authority servicing the bonds.     See 
additional discussion regarding the development of the fair value of the bonds in Note 18. 

Impaired equity securities, including perpetual preferred stocks, are evaluated based on management’s ability and intent to 
hold the securities until fair value recovers over periods not to exceed three years.  The assessment of the ability and intent 
to hold these securities focuses on liquidity needs, asset / liability management objectives and securities portfolio 
objectives.  Factors considered when assessing recovery include forecasts of general economic conditions and specific 
performance of the issuer, analyst ratings and credit spreads for preferred stocks which have debt-like characteristics.  The 
Company has evaluated the near-term prospects of the investment in relation to the severity and duration of the impairment 
and based on that evaluation has ability and intent to hold these investments until a recovery fair value.  Accordingly, all 
impairment of equity securities was considered temporary at December 31, 2010.   

The following represents the composition of net impairment losses recognized in earnings (in thousands): 

OTTI related to perpetual preferred stocks 
OTTI related to equity securities and mutual funds 
OTTI on debt securities due to change in 
   intent to sell 
OTTI on debt securities not intended for sale 
Less:  Portion of OTTI recognized in  
   other comprehensive income 
OTTI recognized in earnings related to 
   credit losses on debt securities not intended 
   for sale 
Total OTTI recognized in earnings 

Year Ended December 31,  
2009 

2008 

2010 

  $ 

– 
(327) 

  $    

(8,008) 

  $    

(5,306) 

– 
(29,633) 

 (1,263) 
        (119,883) 

(2,151) 

(94,741) 

   – 
      – 

      – 

(27,482) 
(27,809) 

  $ 

       (25,142)  
  $      (34,413) 

     –  
(5,306) 

  $     

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

Mortgage Trading Securities 

Year Ended December 31, 
2009 
2010 

$  25,142 

 $       –        

3,514 

  21,468 

23,968 

3,674 

$  52,624 

$   25,142 

Mortgage trading securities are residential mortgage-backed securities issued by U.S. government agencies that have been 
designated as an economic hedge of the mortgage servicing rights and are separately identified on the balance sheet.  The 
Company elected to carry these securities at fair value with changes in fair value being recognized in earnings as they 
occur.  Mortgage trading securities were carried at their fair value of $428 million at December 31, 2010, with a net 
unrealized loss of $5.6 million.  Mortgage trading securities were carried at their fair value of $286 million at December 31, 
2009 and had a net unrealized loss of $2.1 million.  The Company recognized a net gain of $7.3 million in 2010, a net loss 
of $13 million in 2009 and a net gain of $11 million in 2008 on mortgage trading securities.   

88  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
       
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(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, 2010 (in thousands): 

Gross Basis 

Assets 

Liabilities 

Notional¹ 

Fair Value 

Notional¹ 

Fair Value 

Net Basis² 

Assets 
Fair Value 

Liabilities 
Fair Value 

$  11,664,409 
1,914,519 
183,250 

$ 

235,961 
188,655 
10,616 

$ 11,524,077 
2,103,923 
186,709 

$ 

233,421 
191,075 
10,534 

$ 

141,279 
76,746 
4,226 

$  138,739 
79,166 
4,144 

45,014 
160,535 

13,967,727 

– 

13,967,727 

45,014 
16,247 

496,493 
– 
496,493 

45,014 
160,535 

14,020,258 
– 
14,020,258 

45,014 
16,247 

496,291 
– 
496,291 

45,014 
16,247 

45,014 
16,247 

283,512 
(15,017) 
268,495 

283,310 
(68,987) 
214,323 

Customer Risk 

Management Programs: 

Interest rate contracts 
Energy contracts 
Agricultural contracts 
Foreign exchange 

contracts 
CD options 
Total customer derivatives 
before cash collateral 

Less: cash collateral 
Total customer derivatives 

Interest Rate Risk 

Management Programs 

124,000 
Total Derivative Contracts  $  14,091,727 

1,097 
$  215,420 
¹
  Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the 

17,977 
$ 14,038,235 

1,950 
498,443 

1,950 
270,445 

1,097 
497,388 

$ 

$ 

$ 

inception of the contract. 

²  Derivative contracts are recorded on a net basis in the balance sheet in recognition of master netting agreements that enable 
the Company to settle all derivative positions with a given counterparty in total and to offset the net derivative position 
with the related cash collateral. 

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. 

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.  As of 
December 31, 2010, a decrease in credit rating from A1 to below investment grade would increase our obligation to post 
cash margin on existing contracts by approximately $54 million. 

The following table summarizes the fair values of derivative contracts recorded as “derivative contracts” assets and 
liabilities in the balance sheet at December 31, 2009 (in thousands): 

Gross Basis 

Assets 

Liabilities 

Notional¹ 

Fair Value 

Notional¹ 

Fair Value 

Net Basis² 

Assets 
Fair Value 

Liabilities 
Fair Value 

$  7,392,393 
3,588,767 
23,196 

  $156,261 
454,978 
1,004 

$  7,294,028 
3,719,796 
31,715 

  $161,225 
450,614 
875 

  $110,449 
174,319 
1,004 

$  115,413 
176,983 
875 

63,942 
66,248 

11,134,546 
– 
11,134,546 

64,182 
5,493 

681,918 
– 
681,918 

64,182 
66,248 

64,182 
5,493 

11,175,969 

– 

11,175,969 

682,389 
– 
682,389 

64,182 
5,493 

355,447 
(13,229) 
342,218 

64,182 
5,493 

362,946 
(54,586) 
308,360 

Customer Risk Management 

Programs: 

Interest rate contracts³ 
Energy contracts 
Agricultural contracts 
Foreign exchange 

contracts 
CD options 
Total customer derivatives 
before cash collateral 

Less: cash collateral 
Total customer derivatives 

Interest Rate Risk 

Management Programs³ 
Total Derivative Contracts 

– 
$   308,360 
¹  Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the 

– 
$  11,175,969 $   682,389 

1,564 
$   343,782 

1,564 
$   683,482 

$  11,174,546 

40,000 

– 

inception of the contract. 

²  Derivative contracts are recorded on a net basis in the balance sheet in recognition of master netting agreements that enable 
the Company to settle all derivative positions with a given counterparty in total and to offset the net derivative position 
with the related cash collateral. 

³  Gross notional and gross fair value amounts have been revised to conform to current period presentation.  The net fair 

values of assets and liabilities were not affected. 

89  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The following summarizes the pre-tax net gains (losses) on derivative instruments and where they are recorded in the 
income statement (in thousands): 

Year ended December 31, 

2010 

2009 

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 
Energy contracts 
Agriculture contracts 
Foreign exchange contracts 
CD options 

Total Customer Derivatives 

$ 

$ 

2,784 
8,041 
718 
669 
– 
12,212 

$ 

– 
– 
– 
– 
– 
– 

Interest Rate Risk Management Programs 
Total Derivative Contracts 

– 
$  12,212 

3,032 
3,032 

$ 

$ 

2,780 
3,480 
728 
593 
– 
7,581 

– 
7,581 

$ 

– 
– 
– 
– 
– 
– 

(11,235) 
$  (11,235) 

Net interest revenue increased $4.0 million in 2010, $13.1 million in 2009 and $7.0 million in 2008 from periodic 
settlements of amounts receivable or payable on interest rate swaps.   

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.   

None of these derivative contracts have been designated as hedging instruments. 

(4) Loans 

Significant components of the loan portfolio are as follows (in thousands): 

2010 

2009 

December 31, 

Fixed 
Rate 

Variable 
Rate 

Non- 
accrual 

Total 

Fixed 
Rate 

Variable 
Rate 

Non- 
accrual 

Total 

Commercial 
Commercial real estate 
Residential mortgage 
Consumer   
Total    
Loans past due (90 days) 
Foregone interest on 
nonaccrual loans 

$  2,883,905  $  3,011,636  $  38,455 
 150,366 
  37,426 
4,567 
$  4,934,153  $  5,478,069  $  230,814 

1,297,148 
939,774 
229,511 

829,836 
851,048 
369,364 

$  5,933,996
2,277,350
1,828,248
603,442
 $ 10,643,036
9,961
 $ 

 $ 

16,818

773,241
769,661
560,566

$ 2,917,814   $3,188,642  $  101,384  $  6,207,840
2,491,434
1,793,622
786,802
$ 5,021,282   $5,919,061  $  339,355  $  11,279,698
10,308

1,513,269 
993,972 
223,178 

 204,924 
  29,989 
3,058 

$ 

$ 

17,015

At December 31, 2010, approximately $4.9 billion or 46% of the total loan portfolio is to businesses and individuals in 
Oklahoma and $3.0 billion or 28% of our total loan portfolio is to businesses and individuals in Texas.  This geographic 
concentration subjects the loan portfolio to the general economic conditions within this area. 

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, 2010, loans to energy-related businesses within the commercial loan classification totaled $1.7 billion or 
16% of total loans.  Loans to service-related businesses totaled $1.6 billion or 15% of total loans.   Approximately $1.0 
billion of loans in the services category consists of loans with individual balances of less than $10 million.  Other loan 
classes include wholesale / retail, $1.0 billion; healthcare, $810 million; manufacturing, $325 million; other commercial 
and industrial, $292 million and integrated food services, $204 million.  Approximately $2.6 billion or 43% of the 
commercial portfolio are to businesses in Oklahoma and $1.9 billion or 32% of our commercial loan portfolio are to 
businesses in Texas.   

90  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial real estate loans are for the construction of buildings or other improvements to real estate and property held by 
borrowers for investment purposes 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. 

Approximately 32% of commercial real estate loans are secured by properties located in Oklahoma, primarily in the Tulsa 
and Oklahoma City metropolitan areas. An additional 30% of commercial real estate loans are secured by property located 
in Texas, primarily in the Dallas and Houston areas. The major components of commercial real estate loans are construction 
and land development, $448 million; office buildings, $457 million; other real estate loans, $415 million; retail facilities, 
$406 million; multifamily residences, $369 million and industrial, $182 million.  

Residential mortgage loans provide funds for our customer 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.  Consumer loans include direct loans secured by and for the purchase of automobiles, recreational and 
marine equipment as well as other unsecured loans.  Consumer loans also include indirect automobile loans made through 
primary dealers.  Residential mortgage and consumer 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 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, with exception 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.  The maximum loan amount of 
any of our residential mortgage products is $2 million. 

At December 31, 2010 and 2009, residential mortgage loans included $22 million and $16 million, respectively, of loans 
with repayment terms that have been modified from the original contracts.  Restructured residential mortgage loans 
guaranteed by agencies of the U.S. government in accordance with agency guideline represent $19 million of our 
residential mortgage loan portfolio at December 31, 2010.  Interest continues to accrue on these guaranteed loans based on 
the modified terms of the loan.  At December 31, 2010, $7.2 million was 90 days or more past due and still accruing.  If it 
becomes probable that we will not be able to collect all amounts due according to the modified loan terms, the loan is 
placed on nonaccrual status and included in nonaccrual loans.  Renegotiated loans may be transferred to loans held for sale 
after a period of satisfactory performance, generally at least nine months. 

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, 2010, outstanding commitments totaled $5.2 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. 

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, 2010, outstanding standby letters of credit totaled $535 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, 2010, outstanding commercial letters of credit totaled $6 million. 

91  

 
 
 
 
 
 
 
 
 
Allowances for Credit Losses 

BOK Financial maintains separate allowances for loan losses and for off-balance sheet credit risk related to 
commitments to extend credit and standby letters of credit.  As discussed in greater detail in Note 7, the Company also 
has separate allowances related to off-balance sheet credit risk related to residential mortgage loans sold with full or 
partial recourse and for residential mortgage loans sold to government sponsored agencies under standard 
representation and warranties. 

The allowance for loan losses is assessed by management on a quarterly basis and consists of specific amounts 
attributed to impaired loans that have not been charged down to amounts we expect to recover, general allowances 
based on migration factors for unimpaired loans and non-specific allowances based on general economic conditions, 
risk concentration and related factors.  Impairment is individually measured for certain impaired loans and collectively 
measured for all other loans.  The allowance for loan losses and recorded investment of the related loans by portfolio 
segments for each impairment measurement method at December 31, 2010 is as follows (in thousands): 

Collectively Measured  
for Impairment 

Individually Measured 
for Impairment 

Total 

Recorded 
Investment 

Related 
Allowance 

Recorded 
Investment 

Related 
Allowance 

Recorded 
Investment 

Related 
Allowance 

Commercial 
Commercial real estate 
Residential mortgage 
Consumer   
Total  

$  5,895,674    $  102,565  $ 

2,126,984 
1,816,184 
601,691 

94,502 
49,500 
12,536 
  10,440,533      259,103 

38,322  $ 
150,366 
12,064 
1,751 
202,503   

2,066 
4,207 
781 
78 
7,132 

$  5,933,996 $ 
2,277,350
1,828,248
603,442

   10,643,036   

104,631 
98,709 
50,281 
12,614 
266,235 

Nonspecific allowance 

–     

– 

– 

– 

–   

26,736 

Total 

$ 10,440,533    $  259,103  $ 

202,503  $ 

7,132 

 $ 10,643,036  $ 

292,971 

The activity in the combined allowance for loan losses and off-balance sheet credit losses related to loan commitments 
and standby letters of credit is summarized as follows (in thousands): 

Year ended December 31, 
2009 

2008 

2010 

Allowance for loans losses: 
Beginning balance 
Provision for loan losses 
Loans charged off 
Recoveries 
Ending balance 

Allowance for loans off-

balance sheet credit losses: 

Beginning balance 
Provision for off-balance sheet 

credit losses 
Ending balance 

$  292,095 
105,256 
(123,988) 
19,608 
$  292,971 

$  233,236 
196,678 
(148,499) 
10,680 
$  292,095 

$  126,677 
208,280 
(122,211) 
20,490 
$  233,236 

$  14,388 

$  15,166 

$  20,853 

(117) 
$  14,271 

(778) 
$  14,388 

(5,687) 
$  15,166 

Total provision for credit losses  $  105,139 

$  195,900 

$  202,593 

92  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
Credit Quality Indicators 

The Company utilizes risk grading as a primary credit quality indicator.  Substantially all commercial and commercial 
real estate loans and certain residential mortgage and consumer 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 consumer 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, 2010 is as follows (in 
thousands):     

Internally Risk Graded 
Related 
Recorded 
Allowance 
Investment 

Non-Graded 

Total 

Recorded 
Investment 

Related 
Allowance 

Recorded 
Investment 

Related 
Allowance 

Commercial 
Commercial real estate 
Residential mortgage 
Consumer   
Total  

$  5,914,178    $  102,259  $ 

19,818  $ 

2,277,350 
451,874 
246,350 

98,709 
8,356 
1,881 
  8,889,752      211,205 

– 
1,376,374 
357,092 

  1,753,284   

2,372 
– 
  41,925 
  10,733 
55,030 

$  5,933,996 $ 
2,277,350
1,828,248
603,442

   10,643,036   

104,631 
98,709 
50,281 
12,614 
266,235 

Nonspecific allowance 

–     

– 

– 

– 

–   

26,736 

Total 

$  8,889,752    $  211,205  $  1,753,284  $  55,030 

 $ 10,643,036  $ 

292,971 

The risk grading process identified certain criticized loans as potential problem loans.  These loans have a well-defined 
weakness that may jeopardize liquidation of the debt and represent a greater risk due to deterioration in the financial 
condition of the borrower.  Because the borrowers are still performing in accordance with the original terms of the loan 
agreements, these loans were not placed in nonaccrual status.  Known information does, however, cause concern as to 
the borrowers’ continued compliance with current repayment terms.   

The following table summarizes the Company’s loan portfolio at December 31, 2010 by the risk grade categories (in 
thousands): 

Internally Risk Graded 
Potential 
Problem  Nonaccrual Performing Nonaccrual 

Non-Graded 

Performing 

Total 

Commercial: 
Energy 
Services 
Wholesale/retail 
Manufacturing 
Healthcare 
Integrated food services 
Other commercial and industrial 

Total commercial 

Commercial real estate: 

$  1,704,401   $ 
  1,531,239
956,397
319,075
801,525
202,885
267,949
5,783,471

6,543  $ 

465  $ 

30,420 
45,363 
4,000 
4,566 
1,385 
108 
92,385 

  19,262 
8,486 
2,116 
3,534 
13 
4,446 
  38,322 

–  $ 
– 
– 
– 
– 
– 
  19,685 
  19,685 

Construction and land development 
Retail 
Office 
Multifamily 
Industrial 
Other commercial real estate    
Total commercial real estate 

326,769    
395,094    
420,899    
355,733    
177,712    
390,969    
2,067,176    

21,516 
5,468 
16,897 
6,784 
294 
8,849 
59,808 

99,579 
4,978 
19,654 
6,725 
4,087 
15,343 
  150,366 

– 
– 
– 
– 
– 
– 
– 

– 
– 
– 
– 
– 
– 
133 
133 

$  1,711,409 
1,580,921 
1,010,246 
325,191 
809,625 
204,283 
292,321 
5,933,996 

– 
– 
– 
– 
– 
– 
– 

447,864 
405,540 
457,450 
369,242 
182,093 
415,161 
   2,277,350 

Residential mortgage: 

Permanent mortgage 
Home equity 

Total residential mortgage 

Consumer: 

Indirect automobile 
Other consumer 

Total consumer 

420,407    
–    
420,407    

19,403 
– 
19,403 

12,064 
– 
12,064 

  803,023 
  547,989 
 1,351,012 

20,047 
5,315 
25,362 

   1,274,944 
553,304 
   1,828,248 

–    
240,243    
240,243    

– 
4,356 
4,356 

– 
1,751 
1,751 

  237,050 
  117,226 
  354,276 

2,526 
290 
2,816 

239,576 
363,866 
603,442 

Total 

$  8,511,297   $  175,952  $  202,503  $1,724,973  $  28,311 

 $ 10,643,036 

93  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
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.   

A summary of risk-graded impaired loans at December 31, 2010 follows (in thousands): 

Recorded Investment 

Unpaid 
Principal 
Balance 

Total 

With No 
Allowance 

With 
Allowance 

Related 
Allowance 

Commercial: 
Energy 
Services 
Wholesale/retail 
Manufacturing 
Healthcare 
Integrated food services 
Other commercial and industrial 

Total commercial 

Commercial real estate: 

Construction and land development 
Retail 
Office 
Multifamily 
Industrial 
Other real estate loans   

Total commercial real estate 

Residential mortgage: 

Permanent mortgage 
Home equity 

Total residential mortgage 

Consumer: 

Indirect automobile 
Other consumer 

Total consumer 

$ 

559   $ 

465  $ 

40  $ 

28,579
14,717
5,811
4,701
172
13,007
67,546

19,262 
8,486 
2,116 
3,534 
13 
4,446 
38,322 

9,977 
1,342 
1,300 
564 
13 
4,446 
  17,682 

99,579 
138,922    
4,978 
6,111    
19,654 
25,702    
6,725 
24,368    
4,087 
4,087    
15,343 
17,129    
216,319     150,366 

37,578 
838 
10,221 
6,129 
– 
1,092 
55,858 

15,258    
–    
15,258    

12,064 
– 
12,064 

4,492 
– 
4,492 

–    
1,909    
1,909    

– 
1,751 
1,751 

–  
96 
96 

425 
9,285 
7,144 
816 
2,970 
– 
– 
  20,640 

62,001 
4,140 
9,433 
596 
4,087 
14,251 
94,508 

7,572 
– 
7,572 

– 
1,655 
1,655 

$ 

60 
1,227 
684 
– 
95 
– 
– 
2,066 

2,428 
514 
106 
115 
723 
321 
4,207 

781 
– 
781 

– 
78 
78 

Total  

$ 

301,032   $  202,503  $  78,128  $  124,375 

 $ 

7,132 

Investments in impaired loans were as follows (in thousands): 

December 31, 
2009 

2008 

2010 

Investment in impaired loans 
Impaired loans with specific 

allowance for loss 

Specific allowance balance 
Impaired loans with no specific 

allowance for loss 

Average recorded investment in 

impaired loans 

$ 202,503 

  $316,666

$269,908 

124,375 
7,132 

204,076 
36,168 

194,292 
28,532 

78,128 

112,590 

75,616 

262,368 

327,935 

179,808 

Approximately $54 million of losses on impaired loans with no related specific allowance at December 31, 2010 
were charged off against the allowance for loan losses during 2010.  Interest income recognized on impaired loans 
during 2010, 2009 and 2008 was not significant. 

94  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Nonaccrual & Past Due Loans 

A summary of loans currently performing, loans 30 to 89 days past due and accruing, loans 90 days or more past due 
and accruing and nonaccrual loans as of December 31, 2010 is as follows (in thousands): 

Past Due 

Current 

30 to 89 
Days 

90 Days 
or More  Nonaccrual

Total 

$  1,707,466   $ 
1,558,120
1,001,422
321,102
805,124
204,199
287,357
5,884,790

507  $ 

3,196 
315 
168 
75 
71 
111 
4,443 

2,971  $ 
343 
23 
1,805 
892 
– 
274 
6,308 

465 
  19,262 
8,486 
2,116 
3,534 
13 
4,579 
  38,455 

$  1,711,409 
1,580,921 
1,010,246 
325,191 
809,625 
204,283 
292,321 
5,933,996 

Commercial: 
Energy 
Services 
Wholesale/retail 
Manufacturing 
Healthcare 
Integrated food services 
Other commercial and industrial 

Total commercial 

Commercial real estate: 

Construction and land development 
Retail 
Office 
Multifamily 
Industrial 
Other real estate loans   

Total commercial real estate 

344,016    
394,445    
437,496    
362,517    
177,660    
395,320    
  2,111,454    

3,170 
6,117 
300 
– 
346 
4,301 
14,234 

Residential mortgage: 

Permanent mortgage 
Home equity 

Total residential mortgage 

  1,219,119    
546,384    
  1,765,503    

21,719 
1,605 
23,324 

Consumer: 

Indirect automobile 
Other consumer 

Total consumer 

225,601    
360,603    
586,204    

11,382 
927 
12,309 

1,099 
– 
– 
– 
– 
197 
1,296 

1,995 
– 
1,995 

67 
295 
362 

99,579 
4,978 
19,654 
6,725 
4,087 
15,343 
  150,366 

447,864 
405,540 
457,450 
369,242 
182,093 
415,161 
   2,277,350 

32,111 
5,315 
37,426 

   1,274,944 
553,304 
   1,828,248 

2,526 
2,041 
4,567 

239,576 
363,866 
603,442 

Total 

$ 10,347,951   $  54,310  $ 

9,961  $  230,814 

 $ 10,643,036 

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. 

(5) Premises and Equipment 

Premises and equipment at December 31 are summarized as follows (in thousands):  

Land 
Buildings and improvements 
Software 
Furniture and equipment 
Subtotal 
Less accumulated depreciation 
Total 

December 31, 

2010 

2009 

$  72,643 
226,234 
69,303 
133,732 
501,912 
236,447 
$  265,465 

$  76,900 
226,724 
61,347 
122,842 
487,813 
207,553 
$ 280,260 

Depreciation expense of premises and equipment was $33 million, $33 million and $28 million for the years ended 
December 31, 2010, 2009 and 2008, respectively.   

95  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(6) Goodwill and Intangible Assets 

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 

December 31, 

2010 

2009 

$  109,417 
104,795 
4,622 

$  109,417 
100,664 
8,753 

Other identifiable intangible assets 
Less accumulated amortization 
Net other identifiable intangible assets 

17,291 
8,110 
9,181 

16,791 
6,906 
9,885 

Total intangible assets, net 

$  13,803 

$  18,638 

Expected amortization expense for intangible assets that will continue to be amortized (in thousands): 

Core 
Deposit 
Premiums 

Other 
Identifiable 
Intangible Assets 

2011 
2012 
2013 
2014 
2015 
Thereafter 

$    2,227 
815 
485 
432 
392 
271 
4,622 

$   

$         1,356 
1,385 
1,061 
334 
334 
4,711 
9,181 

$ 

Total 

$        3,583 
2,200 
1,546 
766 
726 
4,982 
$    13,803 

The net amortized cost of goodwill and identifiable intangible assets at December 31, 2010 is assigned to the Company’s geographic 
markets as follows (in thousands): 

Core deposit premiums: 

Texas 
Colorado  
Arizona 

Total core deposit premiums 

Other identifiable intangible assets: 

Oklahoma 
Colorado  
Kansas/Missouri 

Total other identifiable intangible 

assets 

Goodwill: 

Oklahoma 
Texas 
New Mexico 
Colorado  
Arizona 
Total goodwill 

$   3,408 
1,058 
156 
4,622 

  $ 

  $ 

6,048 
2,343 
790 

   $ 

9,181 

  $ 

8,173 
240,122 
15,273 
55,611 
16,422 
   $ 335,601 

The carrying value goodwill by operating segment as of December 31, 2010 is as follows (in thousands): 

Commercial 

Consumer 

Wealth 
Management 

Total 

Goodwill 

 $     266,728  

 $      39,251 

 $        29,850 

 $ 335,829  

Accumulated Impairment 

                –   

           (228) 

                 –   

         (228) 

Net goodwill balance 

 $     266,728  

 $      39,023 

 $        29,850 

 $ 335,601  

As a result of the annual goodwill evaluation, the Company recorded an impairment charge of $228 thousand related to the 
consumer banking operating segment in the Arizona market in 2009.  The annual goodwill evaluations for 2010 and 2008 
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. 

96  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
(7) Mortgage Banking Activities  

The Company generally sells the majority of its conforming fixed-rate residential mortgage loans in the secondary market. 
Residential mortgage loans originated for sale by the Company are carried at fair value based on sales commitments or 
market quotes.  Changes in the fair value are recorded in other operating revenue – mortgage banking revenue in the 
Consolidated Statement of Earnings.  Residential mortgage loan commitments are generally outstanding for 60 to 90 days 
and 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.   Residential 
mortgage loan commitments and forward sales contracts are considered derivative contracts that have not been designated 
as hedging instruments. 

The unpaid principal balance of residential mortgage loans held for sale, notional amounts of derivative contracts related to 
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): 

December 31, 2010 

December 31, 2009 

Notional / 
Unpaid 
Principal 
Balance 

Residential mortgage loans held for sale 
Residential mortgage loan commitments 
Forward sales contracts 

$ 

253,778 
  138,870 
396,422 

Notional / 
Unpaid 
Principal 
Balance 

  $  203,879 
   117,716 
333,218 

Fair Value 

$  213,704 
        496 
3,626 
$  217,826 

Fair Value 

  $  254,669 
  2,251 
6,493 
  $  263,413 

No loans were 90 days or more past due as of December 31, 2010 and December 31, 2009.   

Gain (loss) included in mortgage banking revenue in the Consolidated Statements of Earnings from residential mortgage 
loans held for sale and changes in the fair value of derivative contracts not designated as hedging instruments related to 
mortgage loans commitments and forward contract sales were (in thousands): 

Residential mortgage loan held for sale 
Residential mortgage loan commitments 
Forward sales contracts 

2010 

2009 

2008 

$  30,677 
1,755 
2,440 
$  34,872 

  $  26,999 
(1,673) 
5,786 
 $  31,112 

$ 

9,253 
1,691 
(1,815) 
 $  9,129 

At December 31, 2010, BOK Financial owned the rights to service 99,900 mortgage loans with outstanding principal 
balances of $12.1 billion, including $796 million serviced for affiliates at December 31, 2010, and held related funds of 
$178 million for investors and borrowers.  The weighted average interest rate and remaining term was 5.44% and 295 
months, respectively at December 31, 2010.  At December 31, 2009, BOK Financial owned the rights to service 64,104 
mortgage loans with outstanding principal balances of $7.4 billion, including $828 million serviced for affiliates, and held 
related funds of $86 million for investors and borrowers. The weighted average interest rate and remaining term was 5.66% 
and 292 months, respectively.   Servicing revenue and late charges on loans serviced for others, which are included in 
mortgage banking revenue in the Consolidated Statements of Earnings totaled $38.2 million for 2010, $20.0 million for 
2009 and $17.6 million for 2008. 

During the first quarter of 2010, the Company purchased the rights to service approximately 34 thousand residential 
mortgage loans with an outstanding principal balance of $4.2 billion.  The loans to be serviced are primarily concentrated in 
New Mexico and predominately held by Fannie Mae, Ginnie Mae, and Freddie Mac.  The cash purchase price was $32 
million.  The acquisition date fair value of the mortgage servicing rights was approximately $43.7 million based upon 
independent valuation analyses which were further supported by assumptions and models the Company regularly uses to 
value its existing portfolio of servicing rights.  The $11.8 million difference between the purchase price and acquisition date 
fair value was directly attributable to the seller’s distressed financial condition. 

97  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
 
 
 
 
 
Activity in capitalized mortgage servicing rights and related valuation allowance during 2008, 2009 and 2010 are as follows 
(in thousands): 

Capitalized Mortgage Servicing Rights 
Purchased  Originated 

Total 

Balance at December 31, 2007 

$    13,906      $  56,103 

$  70,009 

Additions, net 

Change in fair value due to loan runoff 

Change in fair value due to market changes 

– 

19,220 

(2,286) 

(9,676) 

(5,267) 

(29,248) 

19,220 

(11,962) 

(34,515) 

Balance at December 31, 2008 

$      6,353    $   36,399       $  42,752 

Additions, net 

– 

39,869 

39,869 

Change in fair value due to loan runoff 

(2,526) 

(18,395) 

(20,921) 

Change in fair value due to market changes 

4,001 

8,123 

12,124 

Balance at December 31, 2009 

$      7,828    $   65,996       $  73,824 

Additions, net 

Change in fair value due to loan runoff 

Gain on purchase of mortgage servicing rights 

Change in fair value due to market changes 

31,321 

27,603 

58,924 

(6,791) 

(13,895) 

(20,686) 

11,832 

– 

(6,290) 

(1,881) 

11,832 

(8,171) 

Balance at December 31, 2010 

$   37,900 

$  77,823 

$115,723 

Changes in the fair value of mortgage servicing rights are included in Other Operating Expenses in the Consolidated 
Statement of Earnings.  Changes in fair value due to loan runoff are included in mortgage banking costs.  Changes in the 
fair value due to market changes are reported separately.  Changes in fair value due to market changes during the period 
relate to assets held at the reporting date.   

There is no active market trading in mortgage servicing rights after origination.  Fair value is determined by discounting the 
projected net cash flows. Significant assumptions considered significant unobservable inputs used to determine fair value 
are: 

Discount rate – Indexed to a risk-free rate commensurate with the average life of the servicing portfolio plus a market 
premium. The discount rate was 10.36% at December 31, 2010 and 11.2% at December 31, 2009. 

Prepayment rate – Annual prepayment estimates based upon loan interest rate, original term and loan type ranged from 
6.53% to 23.03% at December 31, 2010 and 8.1% to 26.9% at December 31, 2009. 

Loan servicing costs – Annually per loan based upon loan type ranged from $35 to $60 at December 31, 2010 and $43 
to $66 at December 31, 2009. 

Escrow earnings rate – Indexed to rates paid on deposit accounts with a comparable average life. The escrow earnings 
rate was 2.21% at December 31, 2010 and 2.98% at December 31, 2009. 

Stratification of the mortgage loan-servicing portfolio, outstanding principal of loans serviced by interest rate at December 
31, 2010 follows (in thousands): 

< 4.50% 

4.50 - 5.49% 

5.50% - 6.49% 

=> 6.49% 

Total 

Fair value 

  $ 

11,616 

  $ 

61,168 

$ 

32,646 

$  10,293 

  $  115,723 

Outstanding principal of loans serviced1 

  $  989,077 

  $  5,137,700 

$  3,656,308 

$1,480,045 

  $11,263,130 

1  Excludes outstanding principal of $796 million for loans serviced for affiliates. 

The interest rate sensitivity of our mortgage servicing rights and securities and derivative contracts held as an 
economic hedge is modeled over a range of +/- 50 basis points.  At December 31, 2010, a 50 basis point increase in 
mortgage interest rates is expected to decrease the fair value of our mortgage servicing rights, net of economic 
hedge, by $1.8 million.  A 50 basis point decrease in mortgage interest rates is expected to decrease the fair value of 
our mortgage servicing rights, net of economic hedge, by $3.3 million.  In our model, changes in the value of our 
servicing rights due to changes in interest rates assume stable relationships between mortgage rates and prepayment 
speeds.  Changes in market condition can cause variation from these assumptions.  These factors and others may 
cause changes in the value of our mortgage servicing rights to differ from our expectations. 

The Company has off-balance sheet credit risk for residential mortgage loans sold with full or partial recourse.  
These loans consist of first lien, fixed rate residential mortgage loans originated under various community  

98  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
development programs and sold to U.S. government agencies.  These loans were underwritten to standards approved 
by the agencies, including full documentation and originated under programs available only for owner-occupied 
properties.  However, these loans have a higher risk of delinquency and losses given default than traditional 
residential mortgage loans.  The principal balance of residential mortgage loans sold subject to recourse obligations 
totaled $289 million at December 31, 2010 and $331 million at December 31, 2009.  The separate allowance for 
these off-balance sheet commitments was $17 million at December 31, 2010 and $14 million at December 31, 2009.  
At December 31, 2010, approximately 6% of the loans sold with recourse with an outstanding principal balance of 
$16 million were either delinquent more than 90 days, in bankruptcy or in foreclosure and 6% with an outstanding 
balance of $18 million were past due 30 to 89 days.  The provision for credit losses on loans sold with recourse 
totaled $7.9 million during 2010 and $12 million during 2009 and is included in mortgage banking costs in the 
Consolidated Statements of Earnings.   

The activity in the allowance for losses on loans sold with recourse included in Other liabilities in the Consolidated 
Balance Sheets is summarized as follows (in thousands): 

2010 

2009 

2008 

Beginning balance 
Provision for recourse losses 
Loans charged off, net 
Ending balance 

$  13,781 
7,895 
(5,009) 
$  16,667 

$ 

8,767 
12,210 
(7,196) 
$  13,781 

$ 

$ 

3,560 
8,577 
(3,370) 
8,767 

The Company also has off-balance sheet credit risk for residential mortgage loans sold to government sponsored entities 
due to standard representation and warranties made under contractual agreements.  For the year ended December 31, 2010, 
we have repurchased 11 loans for approximately $301 thousand.  Losses incurred on these loans have been minimal.  At 
December 31, 2010 we have unresolved deficiency requests from the agencies on 140 loans with an aggregate outstanding 
principal balance of $22 million.  During 2010, the Company established an allowance of $2.0 million for credit losses 
related to loans potentially to be repurchased under representation and warranties which is included in Other liabilities on 
the Consolidated Balance Sheet and in mortgage banking costs in the Consolidated Statement of Earnings.  No amounts 
have been charged against this allowance as of December 31, 2010. 

(8) Deposits 

Interest expense on deposits is summarized as follows (in thousands): 
2010 

2008 

2009 

Transaction deposits 
Savings 
Time: 

Certificates of deposits 
under $100,000 
Certificates of deposits 
$100,000 and over 

Other time deposits 

Total time 
Total 

  $  38,886 
719 

  $  51,607 
614 

  $ 121,403 
676 

31,210 

57,486 

70,806 

19,235 
16,215 
66,660 
  $ 106,265 

37,193 
17,462 
112,141 
  $ 164,362 

78,965 
17,074 
166,845 
  $ 288,924 

The aggregate amounts of time deposits in denominations of $100,000 or more at December 31, 2010 and 2009 were $2.2 
billion and $2.1 billion, respectively. 

Time deposit maturities are as follows:  2011 – $1.9 billion, 2012 – $670 million, 2013 – $149 million, 2014 – $71 million, 
2015 – $235 million and $519 million thereafter.  At December 31, 2010 and 2009, the Company had $210 million and 
$169 million, respectively, in fixed rate, brokered certificates of deposits.  The weighted-average interest rate paid on these 
certificates was 3.82% in 2010 and 3.88% in 2009.   

Interest expense on time deposits was reduced by $4.0 million in 2010, $11.5 million in 2009 and $6.9 million in 2008 from 
the net accrued settlement of interest rate swaps.   

The aggregate amount of overdrawn transaction deposits that have been reclassified as loan balances was $13.5 million at 
December 31, 2010 and $13.0 million at December 31, 2009. 

99  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(9) Other Borrowings 

Information relating to other borrowings is summarized as follows (dollars in thousands): 

2010 

Maximum 
Outstanding 
At Any 

Balance 

Rate  Month End 

December 31, 

2009 

Maximum 
Outstanding 
At Any 

2008 

Maximum 
Outstanding 
At Any 

Balance 

Rate  Month End 

Balance 

Rate  Month End 

Parent Company: 

Revolving, unsecured line 
Trust preferred debt 
Total parent company 

Subsidiary Banks: 

Funds purchased  
Repurchase agreements 
Federal Home Loan Bank 

advances 

Federal Reserve advances 
Subordinated debentures 
Other 
Total subsidiary banks 
Total other borrowings 

  $ 

– 

–%   $ 

7,217    6.42 
7,217   

– 
7,217 

  $ 

–

–%  $  50,000   $ 

7,217   6.42
7,217  

12,372 

50,000   3.78%  $  50,000 
12,372 
12,372   6.39
62,372  

1,025,018    0.11 
1,258,762    0.59 

1,465,983 
1,258,762 

1,315,133   0.14
1,156,610   0.46

2,002,285 
1,156,610 

1,586,806   0.18
1,438,593   1.33

1,913,686 
2,034,341 

 – 

801,797    0.14 
–   
398,701    5.78 
24,564    0.46 
3,508,842    0.95 
  $  3,516,059    0.98 

2,277,977 
400,000 
398,701 
25,326 

1,253,051   0.23
850,000   0.25
398,539   5.53
23,089   0.22
4,996,422   0.70
  $  5,003,639   0.72

2,053,130 
1,100,000 
398,539 
31,577 

991,401   1.76
450,000   0.24
398,407   5.51
18,281   0.06
4,883,488   1.30
   $  4,945,860   1.32

2,391,618 
450,000 
398,407 
31,855 

Aggregate annual principal repayments at December 31, 2010 are as follows (in thousands): 

2011 
2012 
2013 
2014 
2015 
Thereafter 
Total 

Parent 
Company 

Subsidiary 
Banks 

  $ 

  $ 

– 
– 
– 
– 
– 
7,217 
7,217 

  $ 3,101,394 
1,025 
525 
525 
149,441 
255,932 
  $ 3,508,842 

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 90 days and are secured by certain 
available for sale securities.  Accrued interest payable related to repurchase agreements totaled $186 thousand at December 
31, 2010 and $194 thousand at December 31, 2009.  

Additional information relating to securities sold under agreements to repurchase and related liabilities at December 31, 
2010 and 2009 is as follows (dollars in thousands): 

Security Sold/Maturity 

U.S. Agency Securities: 
  Overnight1 
  Short-term 

Total Agency Securities 

Security Sold/Maturity 

December 31, 2010 

Amortized 
Cost 

Market 
Value 

Repurchase 
Liability1 

Average 
Rate 

  $ 1,357,440 
132,130 
  $ 1,489,570 

  $  1,399,570 
139,344 
  $  1,538,914 

  $ 1,108,769 
170,155 
  $ 1,278,924 

0.25% 
4.72 
0.85% 

December 31, 2009 

Amortized 
Cost 

Market 
Value 

Repurchase 
Liability1 

Average 
Rate 

U.S. Agency Securities: 
  Overnight1 
  Long-term 

  $ 1,188,400 
139,674 
  $ 1,328,074 
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. 

  $  1,170,682 
145,888 
  $  1,316,570 

  $ 1,006,619 
163,088 
  $ 1,169,707 

Total Agency Securities 

0.31% 
4.71 
0.93% 

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 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 $465 million to secure BOK Financial’s obligations to depositors of  

100  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
public funds.  The unused credit available to BOK Financial at December 31, 2010 pursuant to the Federal Home Loan 
Bank’s collateral policies is $1.5 billion. 

In 2008, the subsidiary banks began borrowing funds under the Federal Reserve Bank Term Auction Facility program.  
This is a temporary program which allows banks that are in generally sound financial condition to bid for funds.  Funds are 
borrowed for either 28 or 84 days and are secured by a pledge of eligible collateral.   Funds borrowed under this program 
totaled $850 million at December 31, 2009.  The Term Auction Facility program was terminated and all outstanding debt 
repaid in 2010. 

The Company has a $100 million unsecured revolving credit agreement with George B. Kaiser, its Chairman and principal 
shareholder.  The amended terms of the credit agreement reduce the size of the credit agreement from $188 million to $100 
million.  Interest on the outstanding balance due to Mr. Kaiser is based on one-month LIBOR plus 250 basis points and is 
payable quarterly.  Additional interest in the form of a facility fee is paid quarterly on the unused portion of the 
commitment at 50 basis points.  This credit agreement matures in December, 2012.  There were no amounts outstanding 
under this credit agreement as of December 31, 2010 or 2009. 

In 2007, Bank of Oklahoma issued $250 million of subordinated debt due May 15, 2017.  Interest on this debt is based 
upon a fixed rate of 5.75% through May 14, 2012 and 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. 

In 2005, Bank of Oklahoma issued $150 million of 10-year, fixed rate subordinated debt.  The cost of this subordinated 
debt, including issuance discounts and hedge loss is 5.56%.  The proceeds of this debt were used to repay $95 million of 
BOK Financial’s unsecured revolving line of credit and to provide additional capital to support asset growth.  During 2006, 
a $150 million notional amount interest rate swap was designated as a hedge of changes in fair value of the subordinated 
debt due to changes in interest rates.  The Company received a fixed rate of 5.257% and paid a variable rate based on 1-
month LIBOR.  This fair value hedging relationship was discontinued and the interest rate swap was terminated in April 
2007. 

 (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 liabilities: 

Available for sale securities mark-to-

market 

Valuation adjustments 
Mortgage servicing rights 
Lease financing 
Other 
Total deferred tax liabilities 

Deferred tax assets: 
Stock-based compensation 
Credit loss allowances 
Valuation adjustments 
Deferred book income 
Deferred compensation 
Book expense in excess of pension    

contribution 

Other 
Total deferred tax assets 
Deferred tax assets in excess of 

deferred tax liabilities 

December 31, 
2010 

2009 

  $ 77,700 
    28,600 
43,800 
14,700 
2,400 
167,200 

  $  6,500 
    30,000 
37,900 
18,200 
9,300 
101,900 

8,300 
116,900 
36,400 
12,700 
22,300 

1,000 
27,700 
225,300 

7,100 
115,900 
26,000 
17,800 
17,000 

2,300 
22,600 
208,700 

  $ 58,100 

  $106,800

101  

 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
The significant components of the provision for income taxes attributable to continuing operations for BOK Financial are 
shown below (in thousands): 

Year ended December 31, 
2009 

2010 

2008 

Current tax expense: 

Federal 
State 
Total current tax expense 

  $  132,165 
17,618 
149,783 

  $  112,163 
16,759 
128,922 

  $  108,879 
7,377 
116,256 

Deferred tax (benefit): 

Federal 
State 
Total deferred tax 

(benefit) 
Total income tax 

expense 

(24,714) 
(1,712) 

(19,835) 
(2,382) 

(47,685)
(3,662)

(26,426) 

(22,217) 

(51,347)

  $  123,357 

  $  106,705 

  $  64,909 

The reconciliations of income attributable to continuing operations computed at the U.S. federal statutory tax rates 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 
Non-controlling interest 
Utilization of tax credits 
Bank-owned life insurance 
Charitable contribution 
Reduction of tax accrual 
Other, net 
Total 

Year ended December 31, 
2008 
2009 
2010 

  $130,078    $108,752
(4,616)

(5,404) 

$73,710 
(4,173)

9,740 
(539) 
(6,317) 
(4,133) 
– 
(2,245) 
2,177 

1,278 
2,643 
(1,234)
(3,555)
(2,852)
(2,437)
1,529 
  $123,357    $106,705   $ 64,909 

9,165 
(1,204)
(1,327)
(3,424)
– 
– 
(641)

Due to the favorable resolution of certain tax issues for the tax periods ended December 31, 2004 and December 31, 2006, 
BOK Financial reduced its tax accrual by $2.4 million and $2.2 million in 2008 and 2010, respectively, which was credited 
against current income tax expense. 

Year ended December 31, 
2008 
2009 
2010 

Percent of pretax income: 
Federal statutory rate 
Tax-exempt revenue 
Effect of state income taxes,  net 

of federal benefit 
Non-controlling interest 
Utilization of tax credits 
Bank-owned life insurance 
Charitable contribution 
Reduction of tax accrual 

Total 

35% 
(1) 

3 
– 
(2) 
(1) 
– 
(1) 
33% 

35% 
(2) 

3 
(1) 
– 
(1) 
– 
– 
 34%  

35% 
(2) 

1 
1 
– 
(2) 
(1) 
(1) 
 31%  

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 
Decreases in tax for prior year positions 
Lapses of applicable statute of limitations 

Balance as of December 31 

2010 

2009 
  $12,300  $ 13,200 
4,050 
– 
(700) 
(4,250) 
$ 12,300 

3,700 
– 
– 
(4,100) 
$11,900 

Any of the above unrecognized tax benefits, if recognized, would affect the effective tax rate. 

BOK Financial recognizes interest and penalties accrued related to unrecognized tax benefits in income tax expense.  The 
Company recognized $1.3 million for 2010 and $1.4 million for 2009, in interest and penalties.  The Company had 
approximately $3 million and $2.7 million for the payment of interest and penalties accrued as of December 31, 2010 and  

102  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2009, 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.   

(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.  Interest will continue to accrue on employees’ account balances at 5.25%.   

The following table presents information regarding this plan (dollars in thousands): 

Change in projected benefit obligation: 

Projected benefit obligation at beginning of year 
Service cost 
Interest cost 
Actuarial (gain) loss 
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 
Company contributions 
Benefits paid 

Plan assets at fair value at end of year 

Funded status of the plan  

Components of net periodic benefit costs: 

Service cost 
Interest cost 
Expected return on plan assets 
Amortization of unrecognized net loss 

Net periodic pension cost (benefit) 

December 31, 

2010 

2009 

  $  46,581 
– 
2,257 
1,489 
(1,954) 
  $  48,373 

  $  39,099 
– 
2,403 
7,517 
(2,438) 
  $  46,581 

  $  41,689 
4,742 
– 
(1,954) 
  $  44,477 

  $  35,301 
8,826 
– 
(2,438) 
  $  41,689 

  $  (3,896) 

  $(4,892) 

  $ 

– 
2,257 
(2,126) 
2,912 
  $  3,043 

  $ 

– 
2,403 
(2,190) 
2,180 
  $  2,393 

1  Projected benefit obligation equals accumulated benefit obligation. 
2  Projected benefit obligation is based on a January 1 measurement date. 

Weighted-average assumptions as of December 31: 

Discount rate 
Expected return on plan assets 
Rate of compensation increase 

4.75% 
5.25% 
N/A 

5.15% 
5.25% 
N/A 

As of December 31, 2010, expected future benefit payments related to the Pension Plan were as follows (in thousands): 

2011 
2012 
2013 
2014 
2015 
2016 through 2019 

  $  5,455 
  3,351 
  3,672 
  3,555 
  3,604 
  17,092 
  $36,729 

Assets of the Pension Plan consist primarily of shares in the Cavanal Hill Balanced Fund. The stated objective of this fund 
is to provide an attractive total return through a broadly diversified 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.  If market quotations are not readily available, the securities’ fair values are 
determined by the Fund’s pricing committee.  The inception-to-date return on the fund, which is used as an indicator when 
setting the expected return on plan assets, was 7.01%.  As of December 31, 2010, the expected return on plan assets for 
2011 is 5.25%.  The maximum allowed and minimum required Pension Plan contributions for 2010 were $22.6 million 
and $245 thousand, respectively.  The minimum contribution was made for 2010 and 2009.  No contribution was made for 
2008.  We expect approximately $3.2 million of net pension costs currently in accumulated other comprehensive income to 
be recognized as net periodic pension cost in 2011. 

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 four years of  

103  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 is made for employees whose annual base compensation is less than $40,000.  
Total non-elective contributions were $1.0 million for 2010, $998 thousand in 2009 and $955 thousand in 2008. 

Participants may direct investments in their accounts to a variety of options, including a BOK Financial common stock 
fund.  Employer contributions, which are invested in accordance with the participant’s investment options, vest over five 
years.  Thrift Plan expenses were $14.3 million for 2010, $13.0 million for 2009 and $12.1 million for 2008.   

BOK Financial also sponsors a defined benefit post-retirement employee medical plan, which pays 50 percent of annual 
medical insurance premiums for retirees who meet certain age and service requirements. Assets of the retiree medical plan 
consist primarily of shares in a cash management fund. The post-retirement medical plan is limited to current retirees and 
certain employees who were age 60 or older at the time the plan was frozen in 1993. The net obligation recognized under 
the plan was $2.2 million at December 31, 2010 and December 31, 2009. A 1% change in medical expense trends would 
not significantly affect the net obligation or cost of this plan. 

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 $104.0 million in 2010, $91.2 million in 2009 and $83.2 million in 2008 for incentive compensation plans. 

(12) Stock Compensation Plans 

The shareholders and Board of Directors of BOK Financial have approved various stock-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.  Stock-based compensation is granted to other officers and employees and is 
approved by the independent compensation committee upon recommendation of the Chairman of the Board and the Chief 
Executive Officer. 

These awards include stock options that are subject to vesting requirements. Generally, one-seventh of the options awarded 
vest annually and expire three years after vesting.  Additionally, stock options that vest in two years and expire 45 days 
after vesting have been awarded.  Non-vested shares are also granted.  These shares vest five years after the grant date.  The 
holders of these shares may be required to retain the shares for a three-year period after vesting. 

The Chief Executive Officer and other senior executives participate in an Executive Incentive Plan.  The number of options 
and non-vested shares may increase or decrease based upon the Company’s growth in earnings per share over a three-year 
period compared to the median growth in earnings per share for a designated peer group of financial institutions and other 
individual performance factors. 

104  

 
 
 
 
 
 
 
 
 
The following table presents options outstanding during 2008, 2009 and 2010 under these plans: 

Weighted- 
Average 
Exercise 
Price 

$43.50 
47.71 
33.05 
47.96 
49.91 

$45.77 
37.24 
33.49 
44.83 
51.76 

$44.58 
48.30 
39.29 
46.89 
51.35 

Number 

3,318,170 
1,098,172 
(498,700) 
(271,250) 
(70,924) 

3,575,468 
913,880 
(280,572) 
(487,793) 
(199,220) 

3,521,763 
345,945 
(486,280) 
(97,443) 
(148,651) 

3,135,334 

$45.62 

Options outstanding at 
December 31, 2007 

Options awarded 
Options exercised 
Options forfeited 
Options expired 
Options outstanding at 
December 31, 2008 

Options awarded 
Options exercised 
Options forfeited 
Options expired 
Options outstanding at 
December 31, 2009 

Options awarded 
Options exercised 
Options forfeited 
Options expired 
Options outstanding at 
December 31, 2010 

Options vested at 

December 31, 2010 

805,781 

$45.26 

The following table summarizes information concerning currently outstanding and vested stock options: 

Options Outstanding 

Options Vested 

Weighted 
Average  Weighted 
Average 
Exercise 
Price 

Remaining 
Contractual 
Outstanding  Life (years) 

Number 

Range of 
Exercise 
Prices 

   $28.27 –  30.87 

36.65 
 37.74 

   38.91 –  44.30 
    45.15 –  47.34 
    47.05 –  48.53 

47.67 
48.30 
48.46 
           54.33 

96,626 
652,241 
148,014 
32,615 
314,626 
380,363 
43,383 
241,294 
649,622 
576,550 

1.34 
5.00 
2.00 
0.12 
2.50 
3.00 
1.00 
6.00 
4.00 
3.50 

$30.18 
36.65 
37.74 
39.90 
47.31 
47.06 
47.67 
48.30 
48.46 
54.33 

Weighted
Average
Number Exercise
Price 
Vested 

96,626 
$30.18 
19,175 
36.65 
91,564 
37.74 
32,615 
39.90 
47.30 
154,331 
147,221    47.06 

– 
– 

– 
– 

83,383    48.46 
180,866    54.33 

Compensation expense for stock options is generally recognized based on the fair value of options granted over the options’ 
vesting period.  The fair value of options was determined as of the date of grant using a Black-Scholes option pricing model 
with the following weighted average assumptions:  

2010 

2009 

2008 

Average risk-free interest rate1 
Dividend yield 
Volatility factors 
Weighted average expected life 
Weighted average fair value 

2.36% 
2.00% 
0.261 
4.9 years 
$10.17 

1.32% 
2.50% 
0.218 
4.9 years 
$5.36 

3.50% 
1.70% 
0.147 
4.9 years 
$7.09 

1Average risk-free interest rate represent U.S. Treasury rates matched to the expected life of the options. 

Compensation cost of stock options granted that may be recognized as compensation expense in future years totaled $6.7 
million at December 31, 2010.  Subject to adjustments for forfeitures, we expect to recognize compensation expense for  

105  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
       
 
 
 
 
 
 
 
 
current outstanding options of $3.0 million in 2011, $1.8 million in 2012, $1.0 million in 2013, $530 thousand in 2014, 
$230 thousand in 2015 and $100 thousand thereafter.   

Stock option expense was $8.3 million for 2010, $5.9 million for 2009 and $7.8 million for 2008.  The intrinsic value of 
options exercised was $6.1 million for 2010, $3.8 million for 2009 and $11.8 million for 2008.  The aggregate intrinsic 
value of options outstanding as of December 31, 2010 and 2009 was $24.4 million and $10.4 million, respectively.  The 
aggregate intrinsic value of options exercisable as of December 31, 2010 and 2009 was $6.6 million and $3.7 million, 
respectively.   

As of December 31, 2010, the Company had awarded a total of 415,508 non-vested common shares, including 173,857 
awarded in 2010.  The weighted average grant date fair value of non-vested shares awarded in 2010 was $48.30 per share.  
During 2010, 24,535 shares which had an average grant date fair value of $47.05 per share vested and 5,912 shares which 
had an average grant date fair value of $40.59 per share were forfeited.  Unrecognized compensation cost of non-vested 
shares totaled $10.0 million at December 31, 2010.  Subject to adjustment for forfeitures, we expect to recognize 
compensation expense of $4.2 million in 2011, $2.2 million in 2012, $2.1 million in 2013, $1.4 million in 2014 and $100 
thousand in 2015. 

BOK Financial permits certain executive officers to defer recognition of taxable income from their stock-based 
compensation. Deferred compensation may also be diversified into investments other than BOK Financial common stock. 

Stock-based compensation subject to these deferral plans is recognized as a liability award rather than as an equity award.  
Compensation expense is based on the fair value of the award recognized over the vesting period.  At December 31, 2010, 
the recorded obligation for liability awards was $2.0 million.  Compensation cost of liability awards was an expense of $1.9 
million in 2010, $1.3 million in 2009 and a benefit of $471 thousand in 2008.   

During January 2011, BOK Financial awarded the following stock-based compensation: 

Number 

Exercise 
Price 

Fair Value /
Award 

Equity awards: 
Stock options 
Non-vested stock 
Total equity awards 
Total stock-based awards 

282,718 
119,305 
402,023 
402,023 

$55.94 
– 

$11.92 
55.94 

The aggregate compensation cost of these awards totaled approximately $9.8 million.  This cost will be recognized over the 
vesting periods, subject to adjustments for forfeitures.  None of the stock-based compensation awards in January 2011 are 
subject to deferred compensation plans. 

(13) Related Parties 

In compliance with applicable 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 under 
substantially the same terms as comparable third-party lending arrangements.  The Company’s loans to related parties do 
not involve more than the normal credit risk and there are no nonaccrual or impaired related party loans outstanding at 
December 31, 2010 or 2009.  Activity in loans to related parties is summarized as follows (in thousands): 

Beginning balance 

Advances 
Payments 
Adjustments1 
Ending balance 

2010 

2009 

  $ 217,698 
510,663 
(544,977) 
(14,449) 
  $ 168,935 

  $ 207,140 
676,743 
(666,159) 
(26) 
  $ 217,698 

1  Adjustments generally consist of changes in status as a related party.   

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 has an unsecured revolving credit agreement with George B. Kaiser, its Chairman and principal shareholder 
as more fully described in Note 9.  The Company also rents office space in facilities owned by affiliates of Mr. Kaiser.  
Lease payments totaled $1.1 million for 2010, $1.0 million for 2009 and $1.1 million for 2008. 

106  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
In 2008, the Company entered into a $25 million loan commitment with the Tulsa Community Foundation (“TCF”) to be 
secured by tax-exempt bonds purchased from the Tulsa Stadium Trust (the “Stadium Trust”) by TCF.  The Stadium Trust is 
an Oklahoma public trust, of which the City of Tulsa is the sole beneficiary.  Stanley A. Lybarger, President and CEO of 
the Company, is Chairman of the Stadium Trust. 

In 2008, the Company sold transferable Oklahoma state income tax credits with face amounts of $5.1 million to Mr. Kaiser 
and $100 thousand to Mr. Lybarger. The credits were sold for cash at estimated fair value which was derived from sales of 
the same credits to non-related parties and sales of similar credits by unrelated entities.  No Oklahoma state income tax 
credits were sold to related parties in 2010 or 2009.   

Cavanal Hill Investment Management, Inc., a wholly-owned subsidiary of BOk, 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").  BOk is custodian and BOSC, 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 99% of the Funds’ assets of $2.5 billion are held for the Company's clients.  A 
Company executive officer serves on the Funds' board of trustees and BOk officers 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. 

(14) Commitments and Contingent Liabilities 

BOSC, Inc. has been joined as a defendant in a putative class action brought on behalf of unit holders of SemGroup Energy 
Partners, LP in the United States District Court for the Northern District of Oklahoma.  The lawsuit is brought pursuant to 
Sections 11 and 12(a)(2) of the Securities Act of 1933 against all of the underwriters of issuances of partnership units in the 
Initial Public Offering in July 2007 and in a Secondary Offering in January 2008.  BOSC underwrote $6.25 million of units 
in the Initial Public Offering.  BOSC was not an underwriter in the Secondary Offering.  Counsel for BOSC believes BOSC 
has valid defenses to the claims asserted in the litigation.  A settlement in principle, subject to court approval, among the 
issuer, the underwriters, and all parties to the litigation has been reached at no material loss to BOSC. 

In 2010, Bank of Oklahoma, National Association was named as a defendant in three putative class actions alleging that the 
manner in which the bank posted charges to its consumer demand deposit accounts breached an implied obligation of good 
faith and fair dealing and violates the Oklahoma Consumer Protection Act.  The actions also allege that the manner in 
which the bank posted charges to its consumer demand deposit accounts is unconscionable, constitutes conversion and 
unjustly enriches the bank.  Two of the actions are pending in the District Court of Tulsa County.  The third action, 
originally brought in the United States District Court for the Western District of Oklahoma, has been transferred to Multi-
District Litigation in the Southern District of Florida.  Each of the three actions seeks to establish a class consisting of all 
consumer customers of the bank.  The amount claimed by the plaintiffs has not been determined, but could be material.  
Management has been advised by counsel that, in its opinion, the Company’s overdraft practices meet all requirements of 
law and the Bank has substantial defenses to the claims.  Based on currently available information, management has 
established an accrual within a reasonable range of probable losses and anticipates the claims will be resolved without 
material loss to the Company. 

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.  This contingent liability totaled $3.6 million at December 31, 2010.  During 2008, 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 and from available cash.  BOK Financial recognized a $3.6 
million receivable for its proportionate share of this escrow account. 

BOK Financial currently owns 251,837 Visa Class B shares which are convertible into Visa Class A shares at the later of 
three years after the date of Visa’s initial public offering or the final settlement of all covered litigation.  The current 
exchange rate is approximately 0.5102 Class A shares for each Class B share.  However, the Company’s Class B shares 
may be diluted in the future if the escrow fund is not adequate to cover future covered litigation costs.  No value may be 
assigned until the Class B shares are converted into a known number of Class A shares. 

At December 31, 2010 Cavanal Hill Funds’ assets included $915 million of U.S. Treasury, $868 million of cash 
management, $403 million of tax-free money market funds and $272 million of other funds.  Assets of these funds consist 
of highly-rated, short-term obligations of the U.S. Treasury, corporate issuers and U.S. states and municipalities.  The net 
asset value of units in these funds was $1.00 at December 31, 2010.  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 2010, 2009 or 2008. 

107  

 
 
 
 
 
 
 
 
 
 
Cottonwood Valley Ventures, Inc. (“CVV, Inc.”), an indirect wholly-owned subsidiary of BOK Financial, is being audited 
by the Oklahoma Tax Commission (“OTC”) for tax years 2007 through 2009.  CVV, Inc. is a qualified venture capital 
company under the applicable Oklahoma statute.  As authorized by the statute, CVV, Inc. generates transferable Oklahoma 
state income tax credits by providing direct debt financing to private companies which qualify as statutory business 
ventures.  Due to certain statutory limitations on utilization of such credits, CVV, Inc. must sell the majority of the credits 
to provide the economic incentives provided for by the statute.  In the event the OTC disallows any such credits, CVV, Inc. 
would be required to indemnify purchasers for the tax credits disallowed.  Management does not anticipate that this audit 
will have a material adverse impact to the consolidated financial statements. 

BOk is obligated under a long-term lease for its bank premises owned by Williams Companies, Inc. and located in 
downtown Tulsa. The former Chairman and CEO of the Williams Companies, Inc. is a director of BOK Financial 
Corporation.  The lease term, which began November 1, 1976, is for fifty-seven years with options to terminate in 2014 and 
2024. Annual base rent is $3.2 million. BOk subleases portions of its space for annual rents of $206 thousand in 2010. Net 
rent expense on this lease was $3.0 million in 2010, 2009 and 2008.  Total rent expense for BOK Financial was $21.2 
million in 2010, $21.4 million in 2009 and $20.3 million in 2008. 

At December 31, 2010, future minimum lease payments for equipment and premises under operating leases were as 
follows:  $17.0 million in 2011, $15.8 million in 2012, $13.5 million in 2013, $12.7 million in 2014, $11.9 million in 2015 
and $87.5 million thereafter.  Premises leases may include options to renew at then current market rates and may include 
escalation provisions based upon changes in the consumer price index or similar benchmarks. 

The Federal Reserve Bank requires member banks to maintain certain minimum average cash balances. These balances 
were $950 million and $723 million at December 31, 2010 and 2009, respectively. 

BOSC, Inc., a wholly-owned subsidiary of BOK Financial, is an introducing broker to Pershing, LLC for retail equity 
investment transactions.  As such, it has indemnified Pershing, LLC against losses due to a customer’s failure to settle a 
transaction or to repay a margin loan.  All unsettled transactions and margin loans are secured as required by applicable 
regulation.  The amount of customer balances subject to indemnification totaled $2.3 million at December 31, 2010. 

At December 31, 2010 and 2009, respectively, the Company’s interest in various unrelated alternative investments totaled 
$46 million and $39 million and is included in Other assets in the Consolidated Balance Sheets.  Alternative investments 
generally consist of unconsolidated limited partnership interests in or loans to entities 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.  At December 31, 2010, the Company has an obligation to fund 
alternative investments of $19 million which is included in Other liabilities in the Consolidated Balance Sheets.   

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.  The Funds generally invested in distressed assets, asset buy-outs or 
venture capital companies.  At December 31, 2010, the Funds’ assets, included in Other assets in the Consolidated Balance 
Sheets, totaled $25 million and the limited partners’ ownership interests in the Funds, included in Non-controlling interest 
in the Consolidated Balance Sheets, totaled $22 million.  At December 31, 2009, the Fund’s assets totaled $23 million and 
the limited partners’ ownership interests in the Funds totaled $19 million.  The Funds have no debt.  The general partner 
has contingent obligations to make additional investments totaling $14 million as of December 31, 2010, substantially all of 
which are offset by limited partner commitments.  The Company does not accrue its contingent liability to fund 
investments. 

Bank of Oklahoma guarantees rents totaling $28.7 million through September, 2017 to the City of Tulsa (“City”) as owner 
of a building immediately adjacent to the Bank’s main office for space currently rented by third-party tenants in the 
building.  All rent payments are current.  Remaining guaranteed rents totaled $20 million at December 31, 2010.  Leases 
expire or are subject to lessee termination options before expiration of the Bank’s guarantee agreement.  In return for this 
guarantee, Bank of Oklahoma will receive 80% of net cash flow as defined in an agreement with the City over the next 10 
years from currently vacant space in the same building.  Approximately 34 thousand square feet of this additional space has 
been rented to outside parties since the date of the agreement.  The maximum amount that Bank of Oklahoma may receive 
under this agreement is $4.5 million.   

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 be material in the aggregate. 

108  

 
 
 
 
 
 
 
 
 
 
(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 2010, 2009 or 2008. 

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. 

Cash dividends paid on common stock totaled $67 million in 2010, $64 million in 2009 and $59 million in 2008.   

Subsidiary Banks  

The amounts of dividends that BOK Financial’s subsidiary banks can declare and the amounts of loans the subsidiary banks 
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.  Based on the most restrictive 
limitations as well as management’s internal capital policy, at December 31, 2010, BOKF subsidiaries could declare up to 
$82 million of dividends without regulatory approval.  The subsidiary banks declared and paid dividends of $280 million in 
2010, $172 million in 2009 and $76 million in 2008.   

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, 2010, 
loan commitments and equity investments were limited to $243 million to a single affiliate and $486 million to all affiliates.  
The largest loan commitment and equity investment to a single affiliate was $167 million and the aggregate loan 
commitments and equity investments to all affiliates were $253 million.  The largest outstanding amount to a single affiliate 
was $53 million and the total outstanding amounts to all affiliates were $68 million.  At December 31, 2009, total loan 
commitments and equity investments to all affiliates were $323 million.  Total outstanding amounts to all affiliates were 
$83 million.   

Regulatory Capital  

BOK Financial and its banking subsidiaries 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 about components, risk weightings and other factors. 

For a banking institution to qualify as well capitalized, Tier I, Total and Leverage capital ratios must be at least 6%, 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. All of BOK Financial’s banking subsidiaries exceeded the regulatory definition of well capitalized. 

109  

 
 
 
 
 
 
 
 
 
(Dollars in thousands) 
Total Capital (to Risk Weighted Assets): 

Consolidated 
BOk 
Bank of Texas 
Bank of Albuquerque 
Bank of Arkansas 
Colorado State Bank and Trust 
Bank of Arizona 
Bank of Kansas City 

Tier I Capital (to Risk Weighted Assets): 

Consolidated 
BOk 
Bank of Texas 
Bank of Albuquerque 
Bank of Arkansas 
Colorado State Bank and Trust 
Bank of Arizona 
Bank of Kansas City 

Tier I Capital (to Average Assets): 

Consolidated 
BOk 
Bank of Texas 
Bank of Albuquerque 
Bank of Arkansas 
Colorado State Bank and Trust 
Bank of Arizona 
Bank of Kansas City 

December 31, 

2010 

2009 

Amount 

Ratio 

Amount 

Ratio 

  $ 

  $ 

  $ 

2,651,771 
1,528,078 
479,682 
143,225 
38,065 
97,592 
31,298 
20,408 

2,076,525 
1,017,458 
430,534 
133,487 
35,423 
88,723 
27,977 
19,247 

2,076,525 
1,017,458 
430,534 
133,487 
35,423 
88,723 
27,977 
19,247 

  $ 

  $ 

  $ 

16.20% 
13.47 
12.26 
18.45 
18.18 
13.76 
12.05 
19.45 

12.69% 
8.97 
11.00 
17.20 
16.92 
12.51 
10.77 
18.34 

8.74% 
5.80 
8.06 
7.19 
11.91 
6.85 
10.16 
6.21 

2,492,771 
1,623,887 
452,420 
131,523 
37,202 
93,201 
28,023 
14,679 

1,876,778 
1,079,037 
398,937 
121,816 
34,286 
85,328 
24,676 
13,771 

1,876,778 
1,079,037 
398,937 
121,816 
34,286 
85,328 
24,676 
13,771 

14.43% 
13.82 
10.62 
16.99 
16.13 
12.16 
10.63 
17.86 

10.86% 
9.18 
9.36 
15.73 
14.87 
11.13 
9.36 
16.75 

8.05% 
6.45 
7.24 
6.54 
12.85 
6.96 
9.60 
10.17 

110  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Accumulated Other Comprehensive Income (Loss)  

Accumulated other comprehensive income (loss) (“AOCI”) includes unrealized gains and losses on available for sale 
securities and accumulated gains or losses on effective cash flow hedges, including hedges of anticipated transactions.  
Gains and losses in AOCI are net of deferred income taxes.  Accumulated losses on the rate lock hedge of the 2005 
subordinated debenture issuance will be reclassified into income over the ten-year life of the debt.  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. 

  Balance at December 31, 2007 
  Unrealized losses on securities 
  Unrealized gains on cash flow hedges 
  Unrealized losses on employee benefit plans 

Tax benefit (expense) on unrealized gains (losses) 
Reclassification adjustment for (gains) losses realized 

and included in net income 

Reclassification adjustment for tax expense (benefit) on 

realized gains (losses) 
  Balance at December 31, 2008 
  Unrealized gains on securities 
  Other-than-temporary impairments losses on securities 
  Unrealized gains on employee benefit plans 

Tax benefit (expense) on unrealized gains (losses) 
Reclassification adjustment for (gains) losses realized 

and included in net income 

Reclassification adjustment for tax expense (benefit)on 

realized gains (losses) 
  Balance at December 31, 2009 
  Unrealized gains on securities 
  Other-than-temporary impairments losses on securities 
  Unrealized gains on employee benefit plans 

Tax benefit (expense) on unrealized gains (losses) 
Reclassification adjustment for (gains) losses realized 

and included in net income 

Reclassification adjustment for tax expense (benefit)on 

realized gains (losses) 
  Balance at December 31, 2010 

Accumulated Unrealized 

Unrealized 
Gain (Loss)
On Available Temporary

Other 
Than 

Loss on 
Effective  
Impairment Cash Flow 

Hedges 

Loss 
On 
Employee 
Benefit Plans 

Total 

For Sale  
Securities 
   $  (22,775)
     (236,990)
– 
– 
70,492 

(21,926)

6,551 
   $ (204,648)
     418,477 
– 
– 

Losses 
$          –   $ 

–  
–     
–  
–     

–     

–     
$          –   $ 
10,053     
(94,741)    

–  

     (146,743)     

31,688     

(1,461)   $ 

–   
139      
–      
(54)     

289      

(6,998) 
– 
– 
(16,434) 
6,393 

   $  (31,234) 
     (236,990) 
139 
(16,434) 
76,831 

– 

(21,637) 

(112)     

– 
(1,199)   $  (17,039) 
– 
– 
926 
(360) 

–      
–      
–      
–      

6,439 
   $ (222,886) 
     428,530 
(94,741) 
926 
     (115,415) 

(11,970)     

–     

262      

– 

(11,708) 

4,656 
   $  59,772 
     170,193 
– 
– 

–     
  $  (53,000)   $ 
30,011     
(2,151)    

–  

(58,825)     

(10,136)    

(102)     

– 
(1,039)   $  (16,473) 
– 
– 
4,412 
(1,716) 

–      
–      
–      
–      

4,554 
  $  (10,740) 
     200,204 
(2,151) 
4,412 
(70,677) 

(21,882)     

–     

264      

– 

(21,618) 

8,512 
   $  157,770 

–     
  $  (35,276)  $ 

(103)     
– 
(878)   $  (13,777) 

8,409 
   $  107,839 

111  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
    
 
 
 
    
 
    
    
 
    
    
 
    
    
    
    
    
    
 
 
 
    
 
 
    
    
 
    
    
    
    
    
    
    
 
 
 
    
 
    
    
 
    
    
 
    
    
    
 
(16) Earnings per Share 

Effective January 1, 2009, unvested share-based payment awards that contain non-forfeitable rights to dividends or 
dividend equivalents (whether paid or unpaid) are participating securities and shall be included in the computation of 
earnings per share pursuant to the two-class method. The Company has determined that its outstanding non-vested stock 
awards are participating securities.  Accordingly, earnings per common share are computed using the two-class method.  
All previously reported earnings per common share data has been retrospectively adjusted to conform to the new 
computation method, the effects of which were not material.  The following table presents the computation of basis and 
diluted earnings per share (dollar in thousands, except per share data): 

Year ended December 31,  
2009 

2008 

2010 

Numerator: 

Net income 
Earnings allocated to participating securities 

Numerator for basic earnings per share – income available to common 

shareholders 

Effect of reallocating undistributed earnings of participating securities 
Numerator for diluted earnings per share – income available to common 

shareholders 

$  246,754 
(1,583) 

$  200,578 
(818) 

$  153,232 
(384) 

245,171 
3 

199,760 
1 

152,848 
(40) 

$  245,174 

$  199,761 

$  152,808 

Denominator: 
Weighted average shares outstanding 
Less:  Participating securities included in weighted average shares outstanding
Denominator for basic earnings per common share 
Dilutive effect of employee stock compensation plans 1 
Denominator for diluted earnings per common share 
Basic earnings per share 
Diluted earnings per share 

68,062,047 
(434,312) 
67,627,735 
203,999 
67,831,734 
$  3.63 
$  3.61 

67,653,035 
(277,648) 
67,375,387 
112,557 
67,487,944 
$  2.96 
$  2.96 

67,428,086 
(125,096) 
67,302,990 
158,371 
67,461,361 
$  2.27 
$  2.27 

1  Excludes employee stock options with exercise prices greater than current 

market price. 

1,245,483 

2,735,375 

1,571,239 

 (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 
network.  Consumer banking includes retail lending and deposit services, all mortgage banking activities and our indirect 
automobile lending products.  Wealth management provides fiduciary services, brokerage and trading, private bank 
services and investment advisory services in all markets.   

In addition to its lines of business, BOK Financial has a funds management unit.  The primary purpose of this unit is to 
manage the overall liquidity needs and interest rate risk of the Company.  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.  Funds management and 
other also included the FDIC special assessment charge in the second quarter of 2009.  Regular FDIC insurance 
assessments are charged to the business units. 

BOK Financial allocates resources and evaluates performance of its lines of business after allocation of funds, certain 
indirect expenses, taxes based on statutory rates, actual net credit losses and capital costs. The cost of funds borrowed from 
the funds management unit by the operating lines of business is transfer priced at rates that approximate market for funds 
with similar duration.  Market is 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 based on applicable Federal 
Home Loan Bank advance rates.  Deposit accounts with indeterminate maturities, such as demand deposit accounts and 
interest-bearing transaction accounts, are transfer-priced at a rolling average based on expected duration of the accounts.  
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  

112  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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.  

Substantially all revenue is from domestic customers. No single external customer accounts for more than 10% of total 
revenue.   

A summary of our reportable segments reconciled to the consolidated financial statements is included in the tables 
following.  Other operating revenue includes Total fees and commission and Gain (loss) on other assets, net from the 
Consolidated Statement of Earnings.  Operating expenses include Total other operating expense from the Consolidated 
Statement of Earning excluding the Changes in fair value of mortgage servicing right and Gains (loss) on repossessed 
assets, net which is included in Net losses and operating expenses of repossessed assets from the Consolidated Statement of 
Earnings.  Gain (losses) on financial instruments, net includes Gain (loss) on derivative, net; Gain on securities, net and the 
Net impairment losses recognized in earnings.  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 included 
attributed to Funds Management and Other.    

(In thousands) 

Year ended December 31, 2010 

Funds 

Commercial 
Banking 

Consumer 
Banking  Management

Wealth  Management
and Other 

Tax- 
Equivalent 
Adjustment 

Total 

Net interest revenue (expense) 

from external sources 

  $  341,770    $ 

86,594   

$  32,634    $  238,896     $       9,158   $ 

709,052 

Net interest revenue (expense) 

from internal sources 
Total net interest revenue 

Other operating revenue 
Operating expense 
Net loans charged off and 

provision for credit losses 

Change in fair value of 

mortgage servicing rights 

Gains (losses) on financial 

instruments, net 

Losses on repossessed assets, 

net 

Income before taxes 
Federal and state income tax 
Net income before non-
controlling interest 

Net income attributable to non-

controlling interest 
Net income attributable to 
BOK Financial Corp. 

(44,685) 
297,085 

140,364 
213,916 

47,360 
133,954 

203,840 
244,118 

11,913 
44,547 

(14,588)
224,308 

– 
9,158 

164,942 
177,952 

6,087 
97,212 

70,193 

23,057 

11,128 

– 

– 

3,661 

– 

11,756 

282 

(6,363)

761 

– 

– 
709,052 

515,233 
733,198 

105,139 

3,661 

5,675 

– 
– 

– 

– 

– 

(19,392) 
133,948 
52,106 

(907)
85,129 
33,115 

– 
20,691 
8,049 

(3,334)
122,725 
30,087 

– 
9,158 

–    

(23,633)
371,651 
123,357 

81,842   

52,014   

  12,642   

92,638 

9,158    

248,294 

–   

–   

–   

1,540    

–    

1,540 

  $ 

81,842    $ 

52,014   

$  12,642    $  91,098   $ 

9,158   $ 

246,754 

Average assets 
Average invested capital 

  $  8,973,559    $ 6,244,728   $  3,503,370    $ 5,084,142   $ 

900,233 

478,796 

170,385 

875,229 

–   $  23,805,799 
2,424,643 
– 

Performance measurements: 
Return on average assets 
Return on average invested 

capital 
Efficiency ratio 

0.91%

0.83%

0.36%

9.09 
48.90 

10.86 
72.27 

7.42 
84.95 

1.04%

10.18 
59.89 

113  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
– 
710,364 

484,646 
702,892 

195,900 

12,124 

8,344 

(5,965)
310,721 
106,705 

– 
– 

– 

– 

– 

– 
8,074 
– 

(In thousands) 

Year ended December 31, 2009 

Funds 

Commercial 
Banking 

Consumer 
Banking  Management

Wealth  Management
and Other 

Tax- 
Equivalent 
Adjustment 

Total 

Net interest revenue (expense) 

from external sources 

  $  345,374    $ 

57,893   

$  25,899    $  273,124   $ 

8,074   $ 

710,364 

Net interest revenue (expense) 

from internal sources 
Total net interest revenue 

Other operating revenue 
Operating expense 
Net loans charged off and 

(52,299) 
293,075 

133,359 
223,227 

73,565 
131,458 

182,895 
256,337 

18,746 
44,645 

(40,012)
233,112 

– 
8,074 

156,360 
171,540 

12,032 
51,788 

provision for credit losses 

100,749 

24,366 

11,399 

59,386 

– 

– 

(7,500) 
94,958 
36,939 

12,124 

(13,198)

1,773 
34,349 
13,362 

– 

– 

– 
18,066 
7,028 

– 

21,542 

(238)
155,274 
49,376 

Change in fair value of 

mortgage servicing rights 

Gains (losses) on financial 

instruments, net 

Gains (losses) on repossessed 

assets, net 

Income before taxes 
Federal and state income tax 
Net income before non-
controlling interest 

Net income attributable to non-

controlling interest 
Net income attributable to 
BOK Financial Corp. 

58,019   

20,987   

  11,038   

  105,898    

8,074    

204,016 

–   

–   

–   

3,438    

–    

3,438 

  $ 

58,019    $ 

20,987   

$  11,038    $  102,460   $ 

8,074   $ 

200,578 

Average assets 
Average invested capital 

  $ 10,108,506    $ 6,149,597   $  3,032,007    $ 3,847,277   $ 

950,684 

493,074 

160,276 

473,007 

–   $  23,137,387 
2,077,041 
– 

Performance measurements: 
Return on average assets 
Return on average invested 

capital 
Efficiency ratio 

0.57% 

0.34% 

0.36%

6.10 
52.35 

4.26 
81.54 

6.89 
85.34 

0.87% 

9.66 
58.82 

114  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(In thousands) 

Year ended December 31, 2008 

Funds 

Commercial 
Banking 

Consumer 
Banking  Management

Wealth  Management
and Other 

Tax- 
Equivalent 
Adjustment 

Total 

Net interest revenue (expense) 

from external sources 

  $  451,624    $ 

32,076   

$  12,617    $  142,317   $ 

8,228   $ 

646,862 

Net interest revenue (expense) 

from internal sources 
Total net interest revenue 

Other operating revenue 
Operating expense 
Net loans charged off and 

provision for credit losses 

Change in fair value of 

mortgage servicing rights 

Gains (losses) on financial 

instruments, net 

Gains (losses) on repossessed 

assets, net 

Income (loss) before taxes 
Federal and state income tax 
Net income before non-
controlling interest 

Net loss attributable to non-

controlling interest 
Net income attributable to 
BOK Financial Corp. 

(134,009) 
317,615 

106,923 
216,403 

118,728 
150,804 

148,885 
219,024 

32,853 
45,470 

(17,572)
124,745 

– 
8,228 

156,133 
149,960 

(6,153)
42,991 

84,650 

16,650 

361 

100,932 

– 

(34,515)

4,689 

12,525 

– 

(7)

(82) 
128,092 
49,828 

193 
42,218 
16,423 

– 
51,275 
19,946 

– 

5,729 

378 
(19,224)
(21,288)

– 
646,862 

405,788 
628,378 

202,593 

(34,515)

22,936 

489 
210,589 
64,909 

– 
– 

– 

– 

– 

– 
8,228 
– 

78,264   

25,795   

  31,329   

2,064    

8,228    

145,680 

–   

–   

–   

(7,552)   

–    

(7,552)

  $ 

78,264    $ 

25,795   

$  31,329    $ 

9,616   $ 

8,228   $ 

153,232 

Average assets 
Average invested capital 

  $ 11,044,919    $ 5,764,662   $  2,193,386    $ 2,606,852   $ 

922,904 

469,737 

141,555 

412,146 

–   $  21,609,819 
1,946,342 
– 

Performance measurements: 
Return on average assets 
Return on average invested 

capital 

Efficiency ratio 

0.71%

0.45%

1.43%

8.48 
50.97 

5.49 
73.08 

22.13 
74.38 

0.71% 

7.87 
59.69 

115  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
(18) Fair Value of Financial Instruments  

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.  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 

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 basis as 
of December 31, 2010 (dollars in thousands): 

Range of 
Contractual 
Yields 

Average 
Re-pricing 
(in years) 

Discount 
Rate 

– 

– 

– 

  0.25  –  18.00% 
  0.38  –  18.00 
  0.38  –  18.00 
  0.38  –  21.00 

0.57 
1.17 
3.65 
0.67 

     0.72 – 4.67% 
     0.29 – 3.81 
     0.79 – 4.58 
     1.98 – 3.91 

  0.01   –    9.64 
  0.13  –    6.58 
  5.19  –  5.82 

1.85 
0.02 
2.30 

0.82 – 1.56 
0.13 – 2.73 
3.72 

Estimated 
Fair 
Value 
  $  1,269,404 
55,467 

188,577 
157,528 
346,105 

72,942 
8,446,908 

644,210 
6,401 
33,424 
42,207 
22,114 
43,046 
9,311,252 

428,021 
263,413 

5,849,443 
2,221,443 
1,860,913 
605,656 
10,537,454 
– 
10,537,454 

115,723 

270,445 
25,436 
13,669,893 
2,979,505 
2,982,460 
413,328 

215,420 

Cash and cash equivalents 
Trading securities 

Investment securities: 
  Municipal and other tax-exempt 
  Other debt securities 
Total investment securities  

Available for sale securities: 
  Municipal and other tax-exempt 
  U.S. agency residential mortgage-backed securities 
  Privately issued residential mortgage-backed 

securities 

  Other debt securities 
  Federal Reserve Bank stock 
  Federal Home Loan Bank stock 
  Perpetual preferred stock 
  Equity securities and mutual funds 
Total available for sale securities 

Mortgage trading securities 
Residential mortgage loans held for sale 

Loans: 
  Commercial 
  Commercial real estate 
  Residential mortgage 
  Consumer 
Total loans 
Allowance for loan losses 
Net loans 

Mortgage servicing rights 
Derivative instruments with positive fair value, net of 

cash margin 

Other assets – private equity funds 
Deposits with no stated maturity 
Time deposits 
Other borrowings 
Subordinated debentures 
Derivative instruments with negative fair value, net of 

cash margin 

Carrying 
Value 

  $ 1,269,404 
55,467 

184,898 
154,655 
339,553 

72,942 
8,446,908 

644,210 
6,401 
33,424 
42,207 
22,114 
43,046 
9,311,252 

428,021 
263,413 

5,933,996 
2,277,350 
1,828,248 
603,442 
10,643,036 
(292,971) 
10,350,065 

115,723 

270,445 
25,436 
13,669,893 
3,509,168 
3,117,358 
398,701 

215,420 

116  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 basis as 
of December 31, 2009 (dollars in thousands): 

Cash and cash equivalents 
Trading securities 

Investment securities: 
  Municipal and other tax-exempt 
  Other debt securities 
Total investment securities 

Available for sale securities: 
  U.S. Treasury 
  Municipal and other tax-exempt 
  U.S. agency residential mortgage-backed securities 

Privately issued residential mortgage-backed 
securities 

  Other debt securities 

Federal Reserve Bank stock 
Federal Home Loan Bank stock 
Perpetual preferred stock 

  Equity securities and mutual funds 
Total available for sale securities 

Mortgage trading securities 
Residential mortgage loans held for sale 

Loans: 
  Commercial 
  Commercial real estate 
  Residential mortgage 
  Consumer 
Total loans 
Allowance for loan losses 
Net loans 

Mortgage servicing rights 
Derivative instruments with positive fair value, net of 

cash margin 

Other assets – private equity funds 
Deposits with no stated maturity 
Time deposits 
Other borrowings 
Subordinated debentures 
Derivative instruments with negative fair value, net of 

cash margin 

Carrying 
Value 

  $  921,216 
65,354 

232,568 
7,837 
240,405 

7,020 
62,201 
7,809,328 

792,362 
17,147 
32,526 
78,999 
22,275 
50,165 
8,872,023 

285,950 
217,826 

6,207,840 
2,491,434 
1,793,622 
786,802 
11,279,698 
(292,095) 
10,987,603 

73,824 

343,782 
22,917 
11,750,235 
3,767,993 
4,605,100 
398,539 

308,360 

Range of 
Contractual 
Yields 

Average 
Re-pricing 
(in years) 

Discount 
Rate 

– 

– 

– 

  1.04  –  18.00% 
  2.00  –  18.00 
  0.08  –  12.75 
  1.75  –  21.00 

0.47 
1.24 
6.93 
1.26 

     0.23 – 3.81% 
     0.24 – 3.81 
     0.74 – 4.85 

3.81 

  0.02   –    10.00 
  0.25  –    6.58 

5.58 

2.09 
0.05 
3.55 

0.06 – 2.34 
0.06 – 0.25 
1.79 

Estimated 
Fair 
Value 
  $  921,216 
65,354 

238,847 
7,857 
246,704 

7,020 
62,201 
7,809,328 

792,362 
17,147 
32,526 
78,999 
22,275 
50,165 
8,872,023 

285,950 
217,826 

6,118,613 
2,457,730 
1,920,449 
807,288 
11,304,080 
– 
11,304,080 

73,824 

343,782 
22,917 
11,750,235 
3,776,149 
4,989,509 
442,738 

308,360 

Because no market exists for certain of these financial instruments and management does not intend to sell these financial 
instruments, BOK Financial the fair values shown above may not represent values at which the respective financial 
instruments could be sold individually or in the aggregate at the given reporting date. 

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 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.  Fair values for a portion of the securities portfolio are based on significant unobservable inputs,  

117  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
including projected cash flows discounted as rates indicated by comparison to securities with similar credit and liquidity 
risk. 

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. 

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 residential 
mortgage loans held for sale are based upon quoted market prices of such loans sold in securitization transactions, including 
related unfunded loan commitments.  

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. The fair values of loans were estimated to approximate their discounted cash 
flows less loan loss allowances allocated to these loans of $266 million and $274 million at December 31, 2010 and 2009, 
respectively. 

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 to represent the price that would be 
received to sell the assets.  Private equity fund assets are long-term, illiquid investments.  No secondary market exists for 
these assets.  They may only be realized through cash distributions from the underlying funds.    

Deposits 
The fair values of time deposits are based on discounted cash flow analyses using interest rates currently being offered on 
similar transactions.  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 this table. 

Other Borrowings 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. 

Off-Balance Sheet Instruments 

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, 2010 and 2009.  

118  

 
 
 
 
 
 
 
Assets and liabilities recorded at fair value in the financial statement on a recurring and non-recurring basis are grouped 
into three broad levels as follows: 

Quoted Prices in active Markets for Identical Instruments – Fair value is based on unadjusted quoted prices in active 
markets for identical assets or liabilities. 

Significant Other Observable Inputs – Fair value is based on significant other observable inputs are generally 
determined based on a single price for each financial instrument provided to us by an applicable third-party pricing 
service and are 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 – 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. 

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 this evaluation, we determined that the results represent prices that would 
be received to sell assets or paid to transfer liabilities in orderly transactions in the current market.   

Fair Value of Financial Instruments Measured on a Recurring Basis 

The fair value of financial assets and liabilities that are measured on a recurring basis are as follows as of December 31, 
2010 (in thousands): 

Assets: 

  Trading securities 
  Available for sale securities: 

  Municipal and other tax-exempt 

U.S. agency residential mortgage-backed 

securities 

Privately issued residential mortgage-

backed securities 
  Other debt securities 

Federal Reserve Bank stock 
Federal Home Loan Bank stock 
Perpetual preferred stock 

  Equity securities and mutual funds 

Mortgage trading securities 
Residential mortgage loans held for sale 
Mortgage servicing rights 
Derivative contracts, net of cash margin 2 
Other assets – private equity funds 

Quoted Prices in 
Active Markets for 
Identical 
Instruments 

Total 

Significant Other 
Observable 
Inputs 

Significant 
Unobservable 
Inputs 

  $  55,467 

  $ 

877 

 $ 

54,590 

  $ 

– 

72,942 

8,446,908 

644,210 
6,401 
33,424 
42,207 
22,114 
43,046 
9,311,252 

428,021 
263,413 
115,723 
270,445 
25,436 

– 

– 

– 
– 
– 
– 
– 
22,344 
22,344 

– 
– 
– 
– 
– 

25,849 

47,093 

8,446,908 

644,210 
1 
33,424 
42,207 
22,114 
20,702 
9,235,415 

428,021 
263,413 
– 
270,445 
– 

– 

– 
6,400 
– 
– 
– 
– 
53,493 

– 
– 
115,723 1 
– 
25,436 

Liabilities: 
  Certificates of deposit 
  Derivative contracts, net of cash margin 2 

27,414 
215,420 

– 
– 

27,414 
215,420 

– 
– 

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.   

119  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
  
  
 
 
The fair value of financial assets and liabilities that are measured on a recurring basis are as follows as of December 31, 
2009 (in thousands): 

Assets: 

Trading securities 
Investment securities 

  Available for sale securities: 

  U.S. Treasury 
  Municipal and other tax-exempt 
  Mortgage-backed securities 
  Other debt securities 

Federal Reserve Bank stock 
Federal Home Loan Bank stock 
Perpetual preferred stock 

  Equity securities and mutual funds 

Mortgage trading securities 
Residential mortgage loans held for sale 
Mortgage servicing rights 
Derivative contracts, net of cash margin 2 
Other assets – private equity funds 

Liabilities: 
  Certificates of deposit 
  Derivative contracts, net of cash margin 2 

Total 

$  65,354 
246,704 

7,020 
62,201 
8,601,690 
17,147 
32,526 
78,999 
22,275 
50,165 
8,872,023 

285,950 
217,826 
73,824 
343,782 
22,917 

98,031 
308,360 

Quoted Prices in 
Active Markets for 
Identical 
Instruments 

Significant Other 
Observable 
Inputs 

Significant 
Unobservable 
Inputs 

$ 

1,282 

$ 

54,272 
246,704 

$     9,800 

7,020 

24,424 
31,444 

1,175 

875 

36,598 

17,116 

53,714 

73,824 1 

22,917 

25,603 
8,601,690 
31 
32,526 
78,999 
22,275 
25,741 
8,786,865 

285,950 
217,826 

342,607 

98,031 
307,485 

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.  The fair value of derivative assets 
and liabilities based on Quoted Prices in Active Markets for Identical Instruments represents derivative 
contracts for agricultural products traded on exchanges. 

The fair value of certain municipal and other debt securities classified as trading or available for sale are 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 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.  Taxable securities rated 
investment grade by all nationally recognized rating agencies are generally valued at par to yield 1.76%.  As of December 
31, 2010, average yields on comparable short-term taxable securities are generally less than 1%.  Tax-exempt securities 
rated investment grade by all nationally recognized rating agencies are generally valued to yield a range of 1.15% to 1.45%, 
which represents a spread of 75 to 80 basis points over average yields of comparable securities as of December 31, 2010.  
The resulting estimated fair value of tax-exempt securities rated investments grade ranges from 99.08% to 100% of par 
value at December 31, 2010. 

After other-than-temporary impairment charges, approximately $11 million of our municipal and other tax-exempt 
securities are rated below investment grade by at least one of the three nationally recognized rating agencies.  The fair value 
of these securities was determined based on yields ranging from 4.62% to 8.93%.  These yields were determined using a 
spread of 425 basis points over average yields for comparable municipal securities of varying durations.  The resulting 
estimated fair value of securities rated below investment grade ranges from 85.13% to 85.34% of par value as of December 
31, 2010.  All of these securities are currently paying contractual interest in accordance with their respective terms.   

120  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
The following represents the changes for the year ended December 31, 2010 related to assets measured at fair value on a 
recurring basis using significant unobservable inputs (in thousands): 

Available for Sale Securities 

Trading 
Securities 

Municipal and 
other tax-
exempt 

Other debt 
securities 

Other assets – 
private equity 
funds 

Balance at December 31, 2009 
Transfer from trading to available for sale 
Purchases, sales, issuances and settlements, net 
Gain (loss) recognized in earnings  
Brokerage and trading revenue 
Gain (loss) on other assets, net 
Gain on securities, net 
Other-than-temporary impairment losses 

Other comprehensive income (loss) 
Balance December 31, 2010 

$ 

9,800 
(13,090) 
3,555 

$  36,598 
12,990 
(1,468) 

 $   17,116 
100 
(11,081) 

(265) 
– 
– 
– 
– 
– 

– 
– 
7 
(1,019) 
(15) 
 $  47,093 

– 
– 
259 
– 
6 
 $  6,400 

 $ 

$   22,917 
– 
2,479 

– 
40 
– 
– 
– 
 $  25,436 

The following represents the changes for the year ended December 31, 2009 related to assets measured at fair value on a 
recurring basis using significant unobservable inputs (in thousands): 

Balance at December 31, 2008 
Transfer to significant unobservable inputs 
Transfer from trading to available for sale 
Purchases, sales, issuances and settlements, net 
Gain (loss) recognized in earnings  
Brokerage and trading revenue 
Gain (loss) on other assets, net 
Other comprehensive income (loss) 
Balance December 31, 2009 

Available for Sale Securities 

Municipal 
and other tax-
exempt 

$ 

  – 
– 
32,540 
4,268 

– 
– 
(210) 
$   36,598 

Other debt 
securities 

 $  

– 
– 
13,350 
    3,792 

– 
– 
(26) 
 $   17,116 

Other assets – 
private equity 
funds 

$   15,891 
– 
– 
2,906 

– 
4,120 
– 

$ 22,917 

Trading 
Securities 

$ 

- 
44,650 
      (45,890) 
11,850 

(810) 
– 
– 
9,800 

$ 

All trading securities with fair values based on significant unobservable inputs were transferred to available for sale based 
on sales limitations and banking regulations.     

Approximately $45 million of trading securities were transferred to significant unobservable inputs during 2009.    
Independent pricing of these securities was discontinued due to a lack of observable inputs.  The Company purchased an 
additional $12 million of similar securities into the trading portfolio after independent pricing was discontinued.  Losses 
recognized in earnings during 2009 based on significant unobservable inputs totaled $810 thousand and included $513 
thousand on securities transferred and $297 thousand on securities purchased.  There were no transfers from quoted prices 
in active markets for identical instruments to significant other observable inputs during 2010. 

Fair Value of Financial Instruments 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.  In addition, goodwill impairment is 
evaluated based on the fair value of the Company’s reporting units.     

The following represents the carrying value of assets measured at fair value on a non-recurring basis (and related losses) during the 
period.  The carrying value represents only those assets adjusted to fair value during the year ended December 31, 2010: 

Quoted 
Prices 
in Active 
Markets for 
Identical 
Instruments 
$ 

– 

– 

– 

Significant
Other 
Observable
Inputs 
  $  77,665 

72,113 

– 

Significant 
Unobservable
Inputs 

  $ 

– 

1,607 

3,910 

Gross 
charge-offs 
against 
allowance for 
loan loss 
$  51,058 

Gross 
charge-offs 
against 
allowance 
for recourse 
loans 
265 

  $ 

Net losses 
and 
expenses of 
repossessed 
assets, net 
– 

  $ 

Other 
expense 
– 
$ 

– 

– 

– 

– 

25,020 

– 

– 

1,750 

Impaired loans 
Real estate and other 
repossessed assets 
Other assets – alternative 

investments 

121  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
 
 
 
 
 
 
The following represents the carrying value of assets measured at fair value on a non-recurring basis (and related losses) during the 
period.  The carrying value represents only those assets adjusted to fair value during the year ended December 31, 2009: 

Carrying Value at December 31, 2009 
Quoted 
Prices 
in Active 
Markets for 
Identical 
Instruments 
$ 

Significant
Other 
Observable
Inputs 
$  73,195 
21,042 

Significant 
Unobservable
Inputs 

– 
– 

– 
– 

$ 

Fair Value Adjustment for the Year Ended 

December 31, 2009 Recognized In: 

Gross 
charge-offs 
against 
allowance for 
loan loss 
$   73,985 
– 

Net losses 
and 
expenses of 
repossessed 
assets, net 
– 
8,611 

$ 

Mortgage 
banking 
costs 

$ 

– 
– 

Impaired loans 
Real estate and other repossessed assets 

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 observable 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. 

The fair value of pension plan assets was approximately $44 million and $42 million at December 31, 2010 and 2009, 
respectively, determined by significant other observable inputs.  Fair value adjustments of pension plan assets along with 
changes in projected benefit obligation are recognized in other comprehensive income (loss).   

Intangible assets, which consist primarily of goodwill, core deposit intangible assets and other acquired intangibles, for 
each business unit are evaluated for impairment annually as of October 1st or more frequently if conditions indicate that 
impairment may have occurred.  The evaluation of possible impairment of intangible assets involves significant judgment 
based upon short-term and long-term projections of future performance. 

The fair value of each of our reporting units is estimated by the discounted future earnings method.  Income growth is 
projected for each of our reporting units over five years and a terminal value is computed.  The projected income stream is 
converted to current fair value by using a discount rate that reflects a rate of return required by a willing buyer.  
Assumptions used to value our business units are based on growth rates, volatility, discount rate and market risk premium 
inherent in our current stock price.  These assumptions are to be significant unobservable inputs and represent our best 
estimate of assumptions that market participants would use to determine fair value of the respective reporting units.  
Critical assumptions in our evaluation were a 11% average expected long-term growth rate, a 0.75% volatility factor for 
BOK Financial common stock, an 11.73% discount rate, and an 12.26% market risk premium.  In general, the growth rate 
for all reporting units for 2011 is based primarily upon continued expected improvements in credit quality, with steady 
growth in future years based on the expectation of improving overall economic growth. 

Fair Value Election 

Certain certificates of deposit were designated as carried at fair value.  This determination is made based on the Company’s 
intent to convert these certificates from fixed interest rates to variable interest rates based on LIBOR with interest rate 
swaps that have not been designated as hedging instruments.  The fair value election for these liabilities better represents 
the economic effect of these instruments on the Company.  At December 31, 2010, the fair value and contractual principal 
amounts of these certificates was $27 million and $27 million, respectively.  At December 31, 2009, the fair value and 
contractual principal amount of these certificates was $98 million and $97 million, respectively.  Changes in the fair value 
of these certificates of deposit are included in Gain (Loss) on Derivatives, net in the Consolidated Statement of Earnings.  
Changes in the fair value of certificates of deposits increased pre-tax net income by $1.2 million in 2010 and $7.9 million in 
2009 and decreased pre-tax net income by $10.2 million in 2008.  

As more fully disclosed in Note 2 and Note 7 to the Consolidated Financial Statements, the Company has elected to 
carry certain mortgage-backed securities which have been designated as economic hedges against changes in the fair 
value of mortgage servicing rights and residential mortgage loans held for sale at fair value.  Changes in the fair value 
of these financial instruments are recognized in earnings.   

122  

 
 
 
 
 
 
 
 
 
 
 
 
(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 
Securities – available for sale 
Investment in subsidiaries 
Other assets 

Total assets 

Liabilities and Shareholders’ Equity 
Other liabilities 

Total liabilities 

Common stock 
Capital surplus 
Retained earnings 
Treasury stock 
Accumulated other comprehensive loss 

Total shareholders’ equity 
Total liabilities and shareholders’ equity 

Statements of Earnings 
(In thousands) 

December 31, 

2010 

2009 

  $  207,453 
59,115 
2,255,222 
25,846 
  $ 2,547,636 

  $ 

19,088 
49,669 
2,138,253 
47,240 
  $ 2,254,250 

  $ 

25,910 
25,910 
4 
782,805 
1,743,880 
(112,802) 
107,839 
2,521,726 
  $ 2,547,636 

  $ 

48,437 
48,437 
4 
758,723 
1,563,683 
(105,857) 
(10,740) 
2,205,813 
  $ 2,254,250 

Dividends, interest and fees received from subsidiaries 
Other operating revenue 

Total revenue 

$ 280,125 
1,883 
282,008 

$ 172,023 
674 
172,697 

$  76,587 
359 
76,946 

2010 

2009 

2008 

Interest expense 
Professional fees and services 
Other operating expense 

Total expense 

Income before taxes and equity in undistributed 

income of subsidiaries 

Federal and state income tax expense (credit) 

Income before equity in undistributed income of 

subsidiaries  

Equity in undistributed income of subsidiaries 
Net income 

507 
795 
1,632 
2,934 

581 
– 
– 
581 

2,131 
842 
290 
3,263 

279,074 
415 

172,116 
738 

73,683 
(1,505) 

278,659 
(31,905) 
$ 246,754 

171,378 
29,200 
$ 200,578 

75,188 
78,044 
$ 153,232 

123  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 subsidiaries 
Tax (expense) benefit on exercise of stock options 
Change in other assets 
Change in other liabilities 
Net cash provided by operating activities 

Cash flows from investing activities: 

Purchases of available for sale securities 
Investment in subsidiaries 

Net cash used by investing activities 

Cash flows from financing activities: 

Increase in other borrowings 
Pay down of other borrowings 
Issuance of common and treasury stock, net 
Cash dividends 
Repurchase of common stock 
Net cash used by financing activities 
Net change in cash and cash equivalents 
Cash and cash equivalents at beginning of period 
Cash and cash equivalents at end of period 

2010 

2009 

2008 

  $  246,754 

  $  200,578 

  $  153,232 

31,905 
(425) 
20,713 
(20,216) 
278,731 

(70,959) 
276   
 (45,617) 
47,333 
131,611 

(78,044) 
(895) 
 (3,930) 
(402) 
69,961 

(10,669) 
(21,692) 
(32,361) 

(2,903) 
 (26,500) 
(29,403) 

– 
 (16,244) 
(16,244) 

– 
– 
8,552 
(66,557) 
– 
(58,005) 
188,365 
19,088 
  $  207,453 

– 
(50,000) 
10,508 
(63,952) 
– 
(103,444) 
(1,236) 
20,324 
  $  19,088 

50,000 
(50,000) 
9,533 
(59,191) 
(7,992) 
(57,650) 
(3,933) 
24,257 
  $  20,324 

Cash paid for interest 

  $ 

507 

  $ 

589 

  $ 

2,282 

(20) Subsequent Events 

The Company evaluated events from the date of the consolidated financial statements on December 31, 2010 
through the issuance of those consolidated financial statements included in this Annual Report on Form 10-K on 
February 25, 2011.  No additional events were identified requiring recognition in and/or disclosure in the 
consolidated financial statements. 

124  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
125  

 
Annual Financial Summary – Unaudited 

Consolidated Daily Average Balances, 
Average Yields and Rates 

(Dollars in thousands) 

Assets 

Taxable securities3 
Tax-exempt securities3 
Total securities3 
Trading securities 
Funds sold and resell agreements 
Residential mortgage loans held for sale 
Loans2 

Less allowance for loan losses 

Loans, net of allowance 
Total earning assets3 

Cash and other assets 

Total assets 

Liabilities and Shareholders’ Equity 

Transaction deposits 
Savings deposits 
Time deposits 

Total interest-bearing deposits 

Funds purchased and repurchase agreements 
Other borrowings 
Subordinated debentures 

Total interest-bearing liabilities 

Demand deposits 
Other liabilities 
Shareholders’ equity 

Total liabilities and shareholders’ equity 

Tax-equivalent Net Interest Revenue3 
Tax-equivalent Net Interest Revenue to Earning Assets3 
Less tax-equivalent adjustment1 
Net Interest Revenue 
Provision for credit losses 
Other operating revenue 
Other operating expense 
Income before taxes  
Federal and state income tax 
Net income before non-controlling interest 
Net income (loss) attributable to non-controlling interest 
Net income attributable to BOK Financial Corp. 

Average 
Balance 

  $  9,691,698 
276,247 
9,967,945 
68,286 
23,743 
214,347 
10,917,966 
309,279 
10,608,687 
20,883,008 
2,922,791 
  $ 23,805,799 

  $  8,573,117 
184,099 
3,712,140 
12,469,356 
2,315,823 
1,537,025 
398,619 
16,720,823 
3,789,375 
870,958 
2,424,643 
  $ 23,805,799 

Yield/ 
Rate 

3.30% 
5.00 
3.35 
4.07 
0.11 
4.32 
4.82 
– 
4.96 
4.19 

0.45% 
0.39 
2.40 
0.85 
0.36 
0.33 
5.63 
0.85 

3.34% 
3.50 

2010 
Revenue/ 
Expense1 

$ 308,215 
13,819 
322,034 
2,782 
27 
9,261 
526,136 
– 
526,136 
860,240 

$   38,886 
719 
66,660 
106,265 
8,259 
5,075 
22,431 
142,030 

$ 718,210 

9,158 
709,052 
105,139 
520,908 
753,170 
371,651 
123,357 
  248,294 
1,540 
$ 246,754 

1   Tax equivalent at the statutory federal and state rates for the periods presented. The taxable equivalent adjustments 

shown are for comparative purposes. 

2   The loan averages included loans on which the accrual of interest has been discontinued and are stated net of 
unearned income. See Note 1 of Notes to the Consolidated Financial Statements for a description of income 
recognition policy. 

3   Yield calculations exclude security trades that have been recorded on trade date with no corresponding interest 

income. 

126  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Average 
Balance 

  $  7,896,861 
274,508 
8,171,369 
89,240 
44,348 
218,305 
12,133,912 
279,689 
11,854,223 
20,377,485 
2,759,902 
  $23,137,387 

  $  7,093,768 
165,677 
4,682,462 
11,941,907 
2,333,179 
2,166,804 
398,471 
16,840,361 
3,279,347 
940,638 
2,077,041 
  $23,137,387 

2009 
Revenue/ 
Expense1 

$ 328,997 
15,376 
344,373 
3,700 
77 
10,102 
564,391 
– 
564,391 
922,643 

$   51,607 
614 
112,141 
164,362 
8,355 
9,190 
22,298 
204,205 

$ 718,438 

8,074 
710,364 
195,900 
492,990 
696,733 
310,721 
106,705 
  204,016 
3,438 
$ 200,578 

Yield/ 
Rate 

Average 
Balance 

  $  6,087,167 
258,552 
6,345,719 
73,563 
70,287 
106,179 
12,487,504 
168,042 
12,319,462 
18,915,210 
2,694,609 
  $21,609,819 

  $  6,342,421 
158,096 
4,552,931 
11,053,448 
3,087,012 
1,745,938 
398,333 
16,284,731 
2,632,719 
746,027 
1,946,342 
  $21,609,819 

4.32% 
5.60 
4.36 
4.15 
0.17 
4.63 
4.65 
– 
4.76 
4.59 

0.73% 
0.37 
2.39 
1.38 
0.36 
0.42 
5.60 
1.21 

3.38% 
3.57 

Yield/ 
Rate 

5.10% 
6.48 
5.16 
6.71 
2.24 
5.47 
5.83 
– 
5.91 
5.64 

1.91% 
0.43 
3.66 
2.61 
1.99 
2.42 
5.59 
2.55 

3.09% 
3.45 

2008 
Revenue/ 
Expense1 

$ 313,361 
16,653 
330,014 
4,935 
1,577 
5,805 
727,542 
– 
727,542 
1,069,873 

$ 121,403 
676 
166,845 
288,924 
61,371 
42,226 
22,262 
414,783 

$ 655,090 

8,228 
646,862 
202,593 
428,724 
662,404 
210,589 
64,909 
  145,680 
(7,552) 
$ 153,232 

127  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Quarterly Financial Summary – Unaudited 

Consolidated Daily Average Balances, 
Average Yields and Rates 

December 31, 2010 

September 30, 2010 

Three Months Ended 

Average 
Balance 

Revenue/  Yield/ 
Expense1 
Rate 

Average 
Balance 

Revenue/ 
Expense1 

Yield/ 
Rate 

3.28% 
4.87 
3.32 
3.26 
0.08 
4.24 
4.87 
– 
5.01 
4.19 

0.45 
0.39 
1.80 
0.85 
0.36 
0.36 
5.64 
0.86 

3.33% 
3.50 

Assets 

Taxable securities3 
Tax-exempt securities3 
Total securities3 
Trading securities 
Funds sold and resell agreements 
Residential mortgage loans held for sale 
Loans2 

Less allowance for loan losses 

Loans, net of allowance 
Total earning assets3 

Cash and other assets 

Total assets 

Liabilities and Shareholders’ Equity 

Transaction deposits 
Savings deposits 
Time deposits 

Total interest-bearing deposits 

Funds purchased and repurchase agreements 
Other borrowings 
Subordinated debentures 

Total interest-bearing liabilities 

Demand deposits 
Other liabilities 
Shareholders’ equity 

Total liabilities and shareholders’ equity 

$ 10,220,359  $  64,671 
3,224 
67,895 
759 
7 
2,745 
128,005 
– 
128,005 
199,411 

258,368 
10,478,727 
74,084 
21,128 
282,734 
10,667,193 
307,223 
10,359,970 
21,216,643 
3,066,308 
$24,282,951 

2.67% $ 9,953,104  $  79,472 
3,145 
256,110 
4.95 
82,617 
10,209,214 
2.73 
570 
69,315 
4.06 
4 
18,882 
0.13 
2,592 
242,559 
3.85 
133,336 
10,861,515 
4.76 
308,139 
– 
– 
133,336 
10,553,376 
4.90 
219,119 
21,093,346 
3.84 
3,098,944 
$24,192,290 

$ 9,325,573 
191,235 
3,602,150 
13,118,958 
1,977,380 
829,756 
398,680 
16,324,774 
4,171,595 
1,251,025 
2,535,557 
$24,282,951 

8,772 
171 
16,147 
25,090 
1,975 
767 
5,666 
33,498 

0.37 
0.35 
1.78 
0.76 
0.40 
0.37 
5.64 
0.81 

9,935 
185 
17,146 
27,266 
2,008 
1,314 
5,664 
36,252 

$ 8,699,495 
189,512 
3,774,136 
12,663,143 
2,227,088 
1,465,516 
398,638 
16,754,385 
3,831,486 
1,124,000 
2,482,419 
$24,192,290 

Tax-equivalent Net Interest Revenue3 
Tax-equivalent Net Interest Revenue to Earning Assets3 
Less tax-equivalent adjustment1 
Net Interest Revenue 
Provision for credit losses 
Other operating revenue 
Other operating expense 
Income before taxes 
Federal and state income tax 
Net income  
Net income (loss) attributable to non-controlling interest 
Net income attributable to BOK Financial Corp. 

Earnings Per Average Common Share Equivalent: 

Net income: 
Basic 
Diluted 

  $  165,913 

3.03%
3.19 

2,263 
163,650 
6,999 
111,913 
178,361 
90,203 
31,097 
59,106 
274 
$ 58,832 

$  0.86 
$ 0.86 

  $  182,867 

2,152 
180,715 
20,000 
137,673 
205,165 
93,223 
29,935 
63,288 
(979) 
  $  64,267 

$  0.94 
$ 0.94 

1  Tax equivalent at the statutory federal and state rates for the periods presented. The taxable equivalent adjustments shown are for 

comparative purposes. 

2  The loan averages included loans on which the accrual of interest has been discontinued and are stated net of unearned income.  
3  Yield calculations exclude security trades that have been recorded on trade date with no corresponding interest income. 

128  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
   
 
 
 
 
 
 
 
 
June 30, 2010 

Three Months Ended 
March 31, 2010 

December 31, 2009 

Average 
Balance 

Revenue/  Yield/ 
Expense1 
Rate 

Average 
Balance 

Revenue/ 
Expense1 

Yield/ 
Rate 

Average 
Balance 

Revenue/ 
Expense1 

Yield/ 
Rate 

3.73%  
5.28 
3.78 
4.53 
0.10 
5.16 
4.81 
– 
4.95 
4.41 

0.52 
0.42 
1.86 
0.94 
0.32 
0.29 
5.66 
0.87 

3.83%
5.16 
3.87 
5.41 
0.21 
4.71 
4.74 
– 
4.86 
4.42 

0.57%
0.47 
1.95 
1.03 
0.30 
0.29 
5.52 
0.94 

$  8,875,417  $  82,392 
3,726 
86,118 
927 
16 
2,311 
137,235 
– 
137,235 
226,607 

286,550 
9,161,967 
68,027 
30,358 
194,760 
11,492,696 
298,157 
11,194,539 
20,649,651 
3,046,083 
$23,695,734 

$  7,734,678  $  11,092 
199 
19,700 
30,991 
1,658 
1,742 
5,542 
39,933 

167,572 
4,002,337 
11,904,587 
2,173,476 
2,380,938 
398,522 
16,857,523 
3,666,663 
924,803 
2,246,745 
$ 23,695,734 

3.54% 
3.68 

  $186,674 

3.48% 
3.64 

2,196 
184,478 
48,620 
108,163 
176,437 
67,584 
24,780 
42,804 
33 
$ 42,771 

$0.63 
$0.63 

$  9,366,703  $  81,460 
3,614 
85,074 
661 
8 
2,177 
132,004 
– 
132,004 
219,924 

296,282 
9,662,985 
58,722 
22,776 
183,489 
10,971,466 
312,595 
10,658,871 
20,586,843 
2,857,964 
$23,444,807 

3.56%  
4.89 
3.60 
4.51 
0.14 
4.76 
4.83 
– 
4.97 
4.33 

10,044 
185 
16,063 
26,292 
2,254 
1,403 
5,535 
35,484 

0.49 
0.40 
1.74 
0.87 
0.36 
0.35 
5.57 
0.85 

$ 8,287,296 
184,376 
3,701,167 
12,172,839 
2,491,084 
1,619,745 
398,598 
16,682,266 
3,660,910 
722,902 
2,378,729 
$23,444,807 

$  9,212,677  $  82,612 
3,836 
86,448 
792 
8 
1,747 
132,791 
– 
132,791 
221,786 

294,849 
9,507,526 
70,979 
32,363 
137,404 
11,187,320 
309,194 
10,878,126 
20,626,398 
3,086,349 
$23,712,747 

$  7,963,752  $  10,135 
178 
17,304 
27,617 
2,022 
1,591 
5,566 
36,796 

170,990 
3,772,295 
11,907,037 
2,575,286 
2,249,470 
398,559 
17,130,352 
3,485,504 
798,263 
2,298,628 
$23,712,747 

3.48% 
3.63 

  $  184,440 

2,327 
182,113 
36,040 
157,439 
205,912 
97,600 
32,042 
65,558 
2,036 
  $  63,522 

$  0.93 
$ 0.93 

  $  184,990 

2,416 
182,574 
42,100 
113,883 
163,732 
90,625 
30,283 
60,342 
209 
  $  60,133 

$  0.88 
$ 0.88 

129  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
   
 
 
 
 
 
   
 
 
   
 
 
 
 
 
 
 
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.  

The Report of Management on Financial Statements and Management’s Report on Internal Control over Financial Reporting appear 
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.  

130  

 
 
 
 
  
  
 
  
 
 
 
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 “Risk Oversight and Audit Committee” in BOK Financial’s 2011 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 Auditor 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 2010 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 2011 Annual Proxy Statement is incorporated herein by reference. 

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 2011 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 heading “Certain Transactions,” “Director Independence” 
and “Related Party Transaction Review and Approval Process” in BOK Financial’s 2011 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 2011 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, 2010, 2009 and 2008 
Consolidated Balance Sheets as of December 31, 2010 and 2009 
Consolidated Statements of Cash Flows for the years ended December 31, 2010, 2009 and 2008 
Consolidated Statements of Changes in Shareholders’ Equity for the years ended December 31, 2010, 2009 and 2008 
Notes to Consolidated Financial Statements 
Annual Financial Summary – Unaudited 
Quarterly Financial Summary - Unaudited 
Reports of Independent Registered Public Accounting Firm 

131  

 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
(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. 

 (a) (3) 

Exhibits 

Exhibit Number 

Description of Exhibit 

3.0 

3.1 

3.1(a) 

4.0 

10.0 

10.1 

10.2 

10.3 

10.4 

10.4(a) 

10.4(b) 

10.4(c) 

10.4 (d) 

10.4 (e) 

10.4 (f) 

10.4 (g) 

10.4.2 

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. 

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. 

Employment Agreement between BOK Financial and Stanley A. Lybarger, incorporated by 
reference to Exhibit 10.4(a) of Form 10-K for the fiscal year ended December 31, 1991. 

Amendment to 1991 Employment Agreement between BOK Financial and Stanley A. 
Lybarger, incorporated by reference to Exhibit 10.4(b) of Form 10-K for the fiscal year 
ended December 31, 2001.     

Amended and Restated Deferred Compensation Agreement (Amended as of September 1, 
2003) between Stanley A. Lybarger and BOK Financial Corporation, incorporated by 
reference to Exhibit 10.4 (c) of Form 10-Q for the quarter ended September 30, 2003.     

409A Deferred Compensation Agreement between Stanley A. Lybarger and BOK Financial 
Corporation dated December 31, 2004, incorporated by reference to Exhibit 10.4 (d) of 
Form 8-K filed on January 5, 2005. 

Guaranty by George B. Kaiser in favor of Stanley A. Lybarger dated March 7, 2005, 
incorporated by reference to Exhibit 10.4 (e) of Form 10-K for the fiscal year ended 
December 31, 2004. 

Third Amendment to 1991 Employment Agreement between Stanley A. Lybarger and Bank 
of Oklahoma, National Association, incorporated by reference to Exhibit 10.4 (f) of Form 
10-K for the fiscal year ended December 31, 2007. 

Amended and Restated Employment Agreement dated December 26, 2008 between BOK 
Financial Corporation and Stanley A. Lybarger, incorporated by reference to Exhibit 99 (a) 
of Form 8-K filed on December 26, 2008. 

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.     

132  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
10.4.2 (a) 

10.4.2 (b) 

10.4.4 

10.4.5 

10.4.5 (a) 

10.4.5 (b) 

10.4.7 

10.4.7 (a) 

10.4.8 

10.6 

10.7.7 

10.7.8 

10.7.9 

10.7.10 

10.7.11 

10.7.12 

10.7.13 

10.8 

10.9 

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 14, 2002) among 
First National Bank of Park Cities, BOK Financial Corporation and C. Fred Ball, Jr., 
incorporated by reference to Exhibit 10.4.4 of Form 10-K for the fiscal year ended 
December 31, 2003. 

409A Deferred Compensation Agreement between Daniel H. Ellinor and BOK Financial 
Corporation dated December 31, 2004, incorporated by reference to Exhibit 10.4.5 of Form 
8-K filed on January 5, 2005. 

Employment Agreement between BOK Financial and Dan H. Ellinor dated August 29, 
2003, incorporated by reference to Exhibit 10.4.5 (a) of Form 10-K for the fiscal year 
ended December 31, 2004. 

Deferred Compensation Agreement dated November 28, 2003 between Daniel H. Ellinor 
and BOK Financial Corporation, incorporated by reference to Exhibit 10.4.5 (b) of Form 
10-K for the fiscal year ended December 31, 2004.     

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.     

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. 

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. 

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. 

133  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
10.34 

10.35 

21.0 

23.0 

31.1  

31.2  

32 

99.0 

99 (c) 

101 

Merger Agreement among BOK Financial Corporation, BOKF Merger Corporation 
Number Twelve, Worth Bancorporation, Inc., and Worth National Bank dated March 9, 
2007, incorporated by reference to Exhibit 99.2 of the Form 8-K filed on March 12, 2007. 

Stock Purchase Agreement among BOK Financial Corporation, BOKF Stock Corporation 
Number Thirteen, United Banks of Colorado, Inc., First United Bank, NA and Baltz Family 
Partners, Ltd. dated May 23, 2007, incorporated by reference to Exhibit 99.2 of the Form 8-
K filed on May 24, 2007. 

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. 

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. 

Additional Exhibits. 

First Amended Debenture dated December 2, 2009 between BOK Financial Corporation 
and George B. Kaiser, incorporated by reference to Exhibit 99 (a) of Form 8-K filed 
December 4, 2009. 

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, tagged as blocks of text* 

*  As provided in Rule 406T of Regulation S-T, this information is furnished and not filed for purposes of Section 

11 and 12 of the Securities Act of 1933 and Section 18 of the Securities Exchange Act of 1934. 

(b)  

Exhibits  

  See Item 15 (a) (3) above. 

(c)  

Financial Statement Schedules 

See Item 15 (a) (2) above. 

134  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 25, 2011 

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 25, 2011, 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/ Stanley A. Lybarger 
Stanley A. Lybarger 
Director, President and Chief Executive Officer 

/s/ Steven E. Nell 
Steven E. Nell 
Executive Vice President and 
Chief Financial Officer 

/s/ Gregory S. Allen 
Gregory S. Allen 

C. Fred Ball, Jr. 

/s/ Sharon J. Bell 
Sharon J. Bell 

/s/ Peter C. Boylan, III 
Peter C. Boylan, III 

/s/ Chester Cadieux, III 
Chester Cadieux, III 

/s/ Joseph W. Craft, III 
Joseph W. Craft, III 

William E. Durrett 

/s/ John C. Morrow 
John C. Morrow 
Senior Vice President and 
Chief Accounting Officer 

DIRECTORS 

/s/ John W. Gibson 
John W. Gibson 

/s/ David F. Griffin 

  David F. Griffin 

/s/ V. Burns Hargis 

  V. Burns Hargis 

/s/ E. Carey Joullian, IV 
E. Carey Joullian, IV 

  Robert J. LaFortune 

/s/ Steven J. Malcolm 
Steven J. Malcolm 

/s/ E.C. Richards 
E.C. Richards 

135  

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
CERTIFICATION PURSUANT TO 
SECTION 302 
OF THE SARBANES-OXLEY ACT OF 2002 

FOR THE CHIEF EXECUTIVE OFFICER 

Exhibit 31.1 

I, Stanley A. Lybarger, President and Chief Executive Officer of BOK Financial Corporation (“BOK Financial”), certify 
that: 

1. 

2. 

3. 

4. 

I have reviewed this Annual Report on Form 10-K of BOK Financial; 

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; 

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; 

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) 

(b) 

(c) 

(d) 

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; 

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; 

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 

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) 

(b) 

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 

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 25, 2011 

/s/ Stanley A. Lybarger 
Stanley A. Lybarger 
President 
Chief Executive Officer 
BOK Financial Corporation 

136  

 
 
 
 
 
CERTIFICATION PURSUANT TO 
SECTION 302 
OF THE SARBANES-OXLEY ACT OF 2002 

FOR THE CHIEF FINANCIAL OFFICER 

Exhibit 31.2 

I, Steven E. Nell, Executive Vice President and Chief Financial Officer of BOK Financial Corporation (“BOK Financial”), 
certify that: 

1. 

2. 

3. 

4. 

I have reviewed this Annual Report on Form 10-K of BOK Financial; 

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; 

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; 

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) 

(b) 

(c) 

(d) 

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; 

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; 

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 

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) 

(b) 

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 

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 25, 2011 

/s/ Steven E. Nell 

Steven E. Nell 
Executive Vice President 
Chief Financial Officer 
BOK Financial Corporation

137  

 
 
 
        
CERTIFICATION PURSUANT TO 
18 U.S.C. SECTION 1350, 
AS ADOPTED PURSUANT TO 
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 

Exhibit 32 

In connection with the Annual Report of BOK Financial Corporation (“BOK Financial”) on Form 10-K for the fiscal year 
ending December 31, 2010 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), we, 
Stanley A. Lybarger 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) 

(2) 

The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 
1934; and 

The information contained in the Report fairly presents, in all material respects, the financial condition and results 
of operations of BOK Financial. 

February 25, 2011  

/s/ Stanley A. Lybarger 
Stanley A. Lybarger 
President 
Chief Executive Officer 
BOK Financial Corporation 

/s/ Steven E. Nell 

Steven E. Nell 
Executive Vice President 
Chief Financial Officer 
BOK Financial Corporation 

138  

 
 
 
 
 
 
 
 
 
                                   
 
 
 
 
 
 
 
 
        
 
 
 
139

Copies of BOK Financial Corporation’s Annual Report 
to Shareholders, Quarterly Reports and Form 10-K as 
filed with the Securities and Exchange Commission are 
available without charge upon written request. Analysts, 
shareholders and other investors seeking financial 
information about BOK Financial Corporation are invited 
to contact Susie Hinkle, Vice President, (918) 588-6752. 

Information about BOK Financial Corporation is also 
available at: www.bokf.com

Registered shareholders may reinvest dividends and 
purchase additional shares through the BOK Financial 
Corporation Dividend Reinvestment Plan. Certain 
restrictions apply. Shareholders may obtain a plan 
brochure by writing to Wells Fargo Shareowner Services, 
P.O. Box 64856, St. Paul, MN 55164-0856, 
by calling 1-800-468-9716 or by visiting 
www.shareowneronline.com.

Shareholder Information

Corporate Headquarters:
Bank of Oklahoma Tower
P.O. Box 2300
Tulsa, Oklahoma 74192
(918) 588-6000

Independent Auditors:
Ernst & Young LLP
1700 One Williams Center
Tulsa, Oklahoma 74172
(918) 560-3600

Legal Counsel:
Frederic Dorwart Lawyers
Old City Hall
124 E. Fourth St.
Tulsa, Oklahoma 74103
(918) 583-9922

NASDAQ Global Select Market Symbol: BOKF

Number of Common Shareholders: 901 as of 
January 31, 2011  

Transfer Agent, Registrar and Dividend 
Disbursing Agent 
Wells Fargo Shareowner Services
P.O. Box 64874
St. Paul, MN 55164-0874
1-800-468-9716
www.wellsfargo.com/shareownerservices

140

Bank of Oklahoma 
Bank of Oklahoma celebrated its centennial in 2010. With 85 banking centers, primarily in Tulsa and Oklahoma City, the bank 
dominates deposit market share in the state. Average assets in Oklahoma grew to $9.8 billion in 2010.

Bank of Texas 
Since entering the Texas market in 1997, average assets have grown to $4.5 billion. Our 48 banking centers are located in 
Dallas, Fort Worth and Houston. In 2010, Bank of Texas was included among the Best Places to Work by the Dallas Business 
Journal and Houston Business Journal. 

Bank of Albuquerque 
Established in 1998 through the acquisition of a consumer branch network, Bank of Albuquerque is ranked fourth in deposit 
market share in the Albuquerque metropolitan area. We have 22 full service banking centers in Albuquerque and average 
assets of $1.3 billion.

Colorado State Bank and Trust 
We  entered  Colorado  through  an  acquisition  in  2003.  Average  assets  of  $1.2  billion  and  trust  assets  of  $3.2  billion  are 
centered in 13 full service banking centers, primarily located in the Denver metropolitan area. 

Bank of Arizona 
After expanding to Phoenix in 2004 through a loan production office, we acquired a niche bank in 2005. We have four full 
service banking centers located in Phoenix and Scottsdale with average assets of $610 million.

Bank of Arkansas 
Deposits  attributed  to  the  Arkansas  market  increased  26%  over  2009.  Bank  of  Arkansas  has  two  full  service  locations.   
Our largest institutional investments sales office is located in Little Rock.

Bank of Kansas City 
After launching a successful loan production office, we opened a de novo branch in 2006. We now have three full service 
banking centers and average assets of $309 million. The broker/dealer’s second largest producing institutional sales office,  
which generated $14 million in revenue in 2010, is in Kansas City.

Effective January 1, 2011, BOK Financial Corporation combined each of its subsidiary banks into BOKF, NA. Divisions of BOKF, NA continue to operate in each market under 
established bank trade names.

www.bokf.com