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BOK Financial

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Employees 1001-5000
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FY2008 Annual Report · BOK Financial
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2008 Annual Report

www.bokf.com

Table of Contents:

Financial Highlights 

Letter to Our Shareholders 

2008 Overview 

Board of Directors 

Corporate Information 

01

02

04

08

10

Financial Highlights

(Dollars In Thousands Except Per Share Data)

2008 

2007 

2006

For the year:
  Net income

Period-end:
  Assets
  Loans
  Deposits
  Shareholders’ equity 
  Nonperforming assets1

Profitability Statistics
  Earnings per share (based on average equivalent shares):

  Basic 
  Diluted

  Percentages (based on daily averages): 

  Return on average assets
  Return on average shareholders’ equity

Common Stock Performance
  Per Share:

  Book value per common share
  Market price: December 31 close

Selected Balance Sheet Statistics
  Period-end:

  Tangible common equity ratio
  Reserve for loan losses to nonperforming loans
  Combined reserves for credit losses to loans2, 3

Miscellaneous (at December 31)
  Number of banking locations
  Number of TransFund locations

$ 

153,232 

$ 

217,664 

$ 

212,977

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

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

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

$ 

2.28 
2.27 

0.71 % 
7.87 

$ 

3.24 
3.22 

$ 

3.19
3.16

1.14 % 

12.01 

1.27 %

13.23

$ 

27.36 
40.40 

$ 

28.75 
51.70 

$ 

25.66
54.98

6.64 % 

74.49 
1.93 

195 
1,933 

7.72 % 

133.79 
1.24 

8.22 %

305.37
1.22

189 
1,822 

163
1,649

1   Includes nonaccrual loans, renegotiated loans and assets acquired in satisfaction of loans. Excludes loans past due 90 days or more and still accruing.
2   Excludes residential mortgage loans held for sale.
3   Includes reserve for loan losses and reserve for off-balance sheet credit losses.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
leTTer To our SHAreHolderS

A CHAllenging YeAr
Since BOK Financial was formed 18 years ago, our aim has 
been to produce consistently superior returns for investors. 
With  unprecedented  capital  markets  and  recessionary 
headwinds,  the  operating  environment  in  2008  was  one 
of  the  toughest  we  have  faced.  Earnings  dwindled  for 
most  financial  institutions  due  to  securities  write-downs 
and  massive  provisions  for  loan  losses.  While  we  were 
disappointed  in  our  profit  for  2008,  BOK  Financial  still 
performed well relative to the industry. Nearly half of our 
peers,  the  ten  immediately  larger  and  ten  immediately 
smaller publicly traded US bank holding companies, reported 
a net loss for 2008. BOK Financial generated net income of 
$153 million, or $2.27 per diluted share. While 2008 marked 
the end of 17 consecutive years of record earnings, BOKF 
reached a new milestone. For the first time in our history, 
revenues exceeded $1 billion. 

In order to ease the credit crunch caused by the disaster 
in  the  subprime  markets,  the  government  passed  the 
Troubled Asset Relief Program (TARP) in the fall of 2008. 
BOK Financial was the largest traditional commercial bank 
in  the  country  to  decline  participation  in  the  Treasury’s 
Capital Purchase Plan, an element of TARP. More than 330 
bank and thrift holding companies were approved to sell 
nearly $300 billion in preferred equity through the program,  
which is one of the US government’s attempts to stabilize 
the economy and financial markets. While most banks were 
eager  to  raise  capital  after  experiencing  mounting  credit 
losses, we determined that our capital strength and liquidity 
provides sufficient support for our customers’ needs and our  
growth plans. 

BAlAnCed STrATegieS
Over the years, we have talked frequently of our balanced 
strategy and how our intentional diversification emphasizes 
long  term  shareholder  value  through  varying  economic 
cycles. Our balanced loan portfolio reduces our exposure to 
credit risk, but no one is immune from the negative effects 
of a severe economic downturn. During the second quarter, 
one of our mid-stream energy customers filed bankruptcy 
unexpectedly,  leading  us  to  record  a  $61  million  charge 
against trading revenue and a $26 million charge against 
the reserve for loan losses. After this event, we reexamined 
our loan and risk management policies, adding additional 
controls to monitor and limit risk. As the prolonged recession 
affects our other customers, we are proactively managing 
credit  risk.  We  also  increased  our  combined  reserve  for 
credit losses to 1.93% of loans in recognition of the current 
operating environment. 

Our  varied  revenue  streams  continue  to  differentiate  us 
from  our  peers.  Non-interest  revenue  represented  more 
than  39%  of  total  revenue  in  2008.  Excluding  two  non-
recurring counterparty charges against derivative revenue, 
total  fees  and  commissions  increased  15%  over  2007, 
due  mainly  to  a  55%  increase  in  brokerage  and  trading 
revenue. Though trust administration fees decreased due 
to  a  general  decline  in  the  market  value  of  customers’ 
portfolios  resulting  from  the  disruption  in  the  financial 
markets,  brokerage  and  trading  revenue  improved  from 
an increase in trading volumes as investors reacted to the 
turbulence in the market. All the primary sources of non-
interest revenue grew, including transaction card revenue 
and deposit service charges, which increased 11% and 8%, 
respectively.  Mortgage  banking  revenue  increased  22% 
and given the low rate environment, is likely to continue 
to  bolster  earnings  in  2009.  BOK  Financial’s  diverse 
sources  of  fee  revenue  remain  an  integral  part  of  our  
balanced strategy.

ASSeT QuAliTY
Our  diversified  loan  portfolio  consists  of  middle  market, 
small business, consumer and mortgage loans originated 
throughout our eight-state footprint. At year end, 54% of the 
portfolio was in markets outside Oklahoma. Our subsidiary 
banks  are  located  primarily  in  traditional  metropolitan 
growth  markets  including  Dallas/Fort  Worth,  Houston, 
Denver, Albuquerque and Phoenix. With the exception of 
Arizona, our markets were not significantly affected by the 
bubble in real estate prices. Though all our markets have 
been affected by the downturn in the economy, most are 
faring better than the nation as a whole. 

In addition to increasing geographic diversification, we have 
managed growth in the loan portfolio in order to increase 
our  areas  of  expertise  and  avoid  concentrations  of  risk. 
For  example,  we  have  maintained  our  commercial  real 
estate portfolio at less than 25% of total loans for over ten 
years. The largest component of our commercial portfolio 
is  energy,  the  industry  that  led  to  the  bank’s  formation. 
Our  energy  portfolio,  which  consists  principally  of  loans 
to  oil  and  gas  producers,  totaled  $2.3  billion  or  18%  of 
loans. We employ our own engineers who perform on-site 
visits and sensitivity analysis. The results of our sensitivity 
analysis indicate that the energy portfolio should continue 
to  perform  well,  despite  the  recent  decline  in  energy 
prices.  BOK  Financial  has  never  maintained  a  subprime  
mortgage portfolio.

02

Wealth  Management  and  Commercial  Banking.  We 
appointed several professionals with more than 20 years of 
experience in the industry to management. Norm Bagwell, 
well known in Texas banking, joined BOK Financial to lead 
Bank  of  Texas  as  Chairman  and  CEO.  In  December,  we 
named mortgage industry veteran Ben Cowen as President 
of the mortgage company and Dan Easley as manager of 
the  Commercial  Real  Estate  Group.  More  recently,  we 
hired a team of municipal finance professionals in Texas to  
expand our public finance division of BOSC, Inc, our broker-
dealer subsidiary. 

In this difficult environment, it is easy to shift focus inward, 
but  we  continue  to  work  toward  our  goal  of  long  term 
growth.  For  this  reason,  we  have  continued  investing  in 
projects to improve internal processes and client products 
and services. During 2008, we opened six new branches   
and  began  construction  on  five  others.  In  October,  we 
celebrated the opening of our 72,000 square foot operations 
center in Oklahoma City. This newly remodeled facility was 
created to meet the needs of our growing business units. 
Planned projects for 2009 will benefit both employees and 
clients throughout the organization, including International, 
Oil and Gas, Consumer and Treasury Services. When the 
economy improves, we anticipate being well positioned to 
take advantage of opportunities to grow our franchise.

We remain confident in our balanced strategies as we face 
the coming year and its opportunities and challenges. We 
look forward to recruiting talent and evaluating acquisition 
prospects afforded by the stressed environment. As we 
move  through  the  first  quarter  of  2009,  we  continue  to 
see migration back to more traditional pricing and lending 
standards. We continue to actively manage credit risk in our 
loan portfolio. At the same time, we remain focused on our 
customers’ needs, providing the personalized responsive 
service that has become our hallmark. 

We  would  like  to  express  our  appreciation  to  our  board 
members,  employees,  customers  and  the  communities 
we serve.

While our balanced strategies helped to insulate us, we have 
felt the effects of the recession as it has begun spreading 
to additional regions and business sectors. Non-performing 
assets totaled $343 million or 2.65% of outstanding loans 
and repossessed assets at year end, $25 million of which 
was subject to guarantees either by a government agency 
or a purchase agreement. Our nonperforming assets may 
remain elevated as we choose to hold these assets rather 
than  selling  them  at  distressed  prices.  Ultimately  this 
approach produces a higher total return. Our net charge-
offs for 2008 were 81 basis points of average loans. Though 
credit losses may continue to increase, we are prepared 
with  a  combined  reserve  for  credit  losses  of  1.93%  of 
period end loans.

We  continue  to  use  our  securities  portfolio  to  generate 
earnings  and  manage  interest  rate  risk.  Our  portfolio 
consists  primarily  of  mortgage  backed  securities  (MBS) 
issued  by  U.S.  government  agencies.  We  have  never 
invested  in  securities  backed  by  sub-prime  mortgage 
loans, collateralized debt obligations or collateralized loan 
obligations. At December 31, approximately $252 million 
of the privately issued MBS were rated below investment 
grade by at least one nationally recognized rating agency. 
The aggregate pretax unrealized loss on these securities at 
December 31, was $92 million which was fully reflected in 
our tangible common equity.

FligHT To QuAliTY
Many  clients  turned  to  BOK  Financial  during  the  year, 
attracted by the stability of the bank as well as our reliable, 
responsive and experienced account officers. While many 
banks experienced capital and liquidity challenges, it was 
“business  as  usual”  for  us.  Other  financial  institutions 
even sought us out in order to sell their excess funds to us. 
Confident in our solid capital and access to funding, BOK 
Financial possessed a willingness and ability to lend while 
many banks had to curtail loan growth. Loans and deposits 
grew  8%  and  11%,  respectively.  Mortgage  originations 
were  up  22%,  due  in  part  to  recent  initiatives  to  grow 
BOK  Financial’s  mortgage  business  outside  Oklahoma. 
Originations  outside  Oklahoma  comprised  44%  of  total 
originations, up 31% from 2005. 

PlAnning For Tomorrow
Though  it  may  be  some  time  before  the  economy  and 
the  credit  markets  fully  recover,  we  are  continuing  to 
invest in the future. We took advantage of the turbulent 
times in 2008 by attracting experienced talent to bolster 
several lines of business including Mortgage, International, 

George B. Kaiser
Chairman

Stanley A. Lybarger
President & CEO

03

2008 overview

CorPorATe ProFile
BOK Financial Corporation (BOKF) is a financial holding company operating seven bank subsidiaries with full service locations 
in eight states throughout the Midwest, Southwest and Rocky Mountain regions. BOKF, headquartered in Tulsa, Oklahoma, 
has $22.7 billion in assets. After becoming the recognized market leader in Oklahoma for consumer and commercial banking, 
management initiated a regional expansion into growing metropolitan markets. Loans in regional markets now comprise 54% 
of the portfolio.

Demographic Profile

Primary Markets

Tulsa, OK 
Oklahoma City, OK 
Albuquerque, NM 
Dallas-Fort Worth-Arlington, TX 
Denver-Aurora-Broomfield, CO 
Houston-Sugar Land-Baytown, TX 
Fayetteville-Springdale-Rogers, AR-MO 
Phoenix-Mesa-Scottsdale, AZ 
Kansas City, MO-KS 
Aggregate: National 

Source:  SNL Financial, data as of June 30, 2008

Number of Branches

Deposit  M arket Share

M arket Rank

Total  Population
     2008

1 
2 
4 
7 
9 
12 
21 
31 
71 

41 
31 
21 
33 
15 
15 
2 
4 
2 

23.92  % 
10.64  % 
10.39  % 
1.84  % 
2.35  % 
0.96  % 
1.19  % 
0.23  % 
0.17  % 

924,259 
1,215,023 
851,536 
6,318,633 
2,518,355 
5,843,450 
452,523 
4,365,443 
2,031,215 

Population Change
     2000-2008

Projected Population
    Change 2008-2013

    Income 2008
M edian HH 

    Change 2000-2008
HH Income

7.29  % 
10.57  % 
16.16  % 
21.67  % 
15.05  % 
23.12  % 
29.35  % 
33.05  % 
10.29  % 
 9.59  % 

4.23  % 
6.90  % 
10.66  % 
13.45  % 
9.23  % 
15.09  % 
18.20  % 
19.79  % 
6.46  % 
6.30 %  

$  49,838 
$  48,672 
$  52,515 
$  64,267 
$  69,503 
$  60,131 
$  48,644 
$  61,377 
$  61,214 
$  54,749 

31.39  % 
31.09  % 
33.93  % 
33.28  % 
33.82  % 
33.44  % 
33.04  % 
35.79  % 
32.53  % 
28.82  % 

     Income Change
Projected HH 
         2008-2013

19.80  %
20.20  %
20.61  %
13.93  %
15.80  %
13.61  %
21.22  %
18.79  %
16.44  %
16.97  %

BOKF operates three primary lines of business. The Commercial Banking Division provides loan and lease financing, as well as 
treasury and cash management services to small and middle-market businesses. This Division also includes TransFund, an ATM 
and debit card network with more than 1,900 ATMs in 13 states. The Consumer Banking Division provides a full line of deposit, 
financing  and  fee-based services to customers through four main distribution channels: traditional branches, supermarket 
branches, the 24-hour ExpressBank and the Internet. BOKF also originates and services conventional and government-sponsored 
mortgages. The Wealth Management Division provides trust, private banking and brokerage and trading services. BOSC, Inc.,  
a full-service registered broker/dealer, is also a part of this division.  

BOKF has a long history of success. Our management team follows a balanced strategy which includes diverse revenue 
streams, a diversified loan portfolio and a long term focus on profitable growth. This strategy has performed well throughout 
various economic cycles. In 2008, when earnings dwindled for most financial institutions and many sought additional capital, 
BOKF generated $153 million in earnings. BOKF’s capital levels remain solid – far above regulatory “well capitalized” levels.  
Due to BOKF’s strong capital position, management elected not to participate in the Treasury’s Capital Purchase Program, an 
element of the Troubled Asset Relief Program. While BOKF is not immune from the negative effects of the recession, we believe 
our balanced strategy will continue to render positive results. 

Net Income and EPS

EPS CAGR 11%

250

200

150

100

50

0

3.50

3.00

2.50

2.00

1.50

1.00

.50

.00

s
n
o

i
l
l
i

M
n
I

1991

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

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

Net Income

EPS

04

 
 
 
 
 
overview

All information is presented as of December 31, 2008.

•	

•	

•	

•	

•	

•	

•	

•	

Assets of $22.7 billion

Loans of $12.9 billion

Combined reserves for credit losses of 1.93%

Deposits of $15.0 billion

Stockholders’ equity of $1.8 billion

Tangible common equity ratio of 6.64%

Market cap of $2.6 billion

195 Banking locations

loAnS

Diverse Revenue

Mortgage
Banking 2% Other 6%

Deposit
Service Charges 10%

Trust Fees 7%

Transaction
Card 9%

Brokerage and
Trading* 9%

Net Interest
Revenue 57%

*Brokerage and Trading was normalized to exclude two non-recurring charges

Loan Portfolio

Residential
Mortgage 14%

Energy 17%

While the portfolio’s geographic diversification is 
increasing, we purposefully maintain a consistent loan mix

Consumer
8%

•	

•	

•	

Strong middle market focus  

The services sector includes a large number of loans to a 
variety of businesses including communications, gaming 
and transportation services

•	

54% of loans are in markets outside Oklahoma

dePoSiTS

•	

•	

•	

•	

Deposits have grown at a five year compound annual  
rate of 10%

40% of total deposits are in markets outside Oklahoma

Demand deposits represent 21% of total deposits

Consumer and Wealth Management deposits account  
for 58% of total deposits

Other CRE 10%

Office CRE 4%

Construction and
Land Dev 7%

Services
16%

Wholesale/
Retail 9%

Healthcare
6%

Other Commercial
9%

Deposit Growth

s
n
o

i
l
l
i

B
n
I

16.00

12.00

8.00

4.00

0.0

2004

2005

2006

2007

2008

Demand
Interest Bearing Transaction

Savings

Time

05

 
ASSeT QuAliTY

All subsidiary banks operate under the same credit policies.  
Credit administration and oversight is centralized.

•	

•	

•	

Due to the weakened economy, net charge-offs increased 
in all loan types

Combined reserves for credit losses at 1.93% of  
outstanding loans

Non-performing assets totaled $342 million or 2.65%  
of outstanding loans and repossessed assets, including  
$10 million guaranteed by U.S. government agencies  
and $15 million covered by a $5.3 million purchase  
escrow agreement

CAPiTAl

Due to BOK Financial’s strong capital position, management 
elected not to participate in the Treasury’s Capital Purchase 
Program, an element of the Troubled Asset Relief Program.  

•	

•	

Current uses of capital include organic growth, dividends, 
acquisitions within our footprint and periodic stock 
repurchases

BOK Financial’s capital ratios exceed the federal  
banking agencies’ definition of “well capitalized”

CommerCiAl

In addition to meeting small to mid-size companies’ financing 
needs, BOK Financial offers a comprehensive set of services 
including International, Merchant Banking, Treasury Services, 
Financial Risk Management, Investments and Retirement and 
Institutional Trust Services.  

•	

•	

•	

Commercial loans have grown at a five year compound 
annual rate of 11%

Controlled commercial real estate exposure at less than 
25% of portfolio

International income and services charges for the 
Commercial Division increased 29% and 22%, respectively

06

i

s
t
n
o
P
s
i
s
a
B
n
I

90

80

70

60

50

40

30

20

10

0

14%

12%

10%

8%

6%

4%

Net Charge-Offs

2004

2005

2006

2007

2008

Commercial
Residential RE

   CRE
   Consumer

Capital Ratios

Tier I

Total Capital

Leverage

TCE/TA

2006          2007           2008
   Regulatory definition of “well capitalized”         

Commercial Loans

s
n
o

i
l
l
i

B
n
I

12

10

8

6

4

2

0

2004

2005

2006

2007

2008

Commercial          Commercial Real Estate

 
 
 
ConSumer

Our focus is on providing our customers with personalized 
service resulting in exceptional satisfaction. We reward, 
recognize and promote customer service representatives  
who exceed our client service standards.

•	

•	

•	

While our mortgage originators funded $1.3 billion in 
conventional and government-sponsored mortgages,  
our servicing group was inducted into Freddie Mac’s Tier 
One Hall of Fame for excellence in investor reporting and 
default management

Mature sales and service process that identifies and 
satisfies clients’ needs 

Fee income and consumer deposits have grown at five  
year compound annual rates of 10% and 7%, respectively

Deposits and Fee Income

7

6

5

4

3

2

1

0

2004

2005

2006

2007

2008

Total Deposits                   Fee Income

90
80
70
60
50
40
30
20
10
0

I
n
M

i
l
l
i

o
n
s

s
n
o

i
l
l
i

B
n
I

Wealth Management Revenue

weAlTH mAnAgemenT

In addition to assisting high net worth individuals with 
investing and fiduciary solutions, we serve corporations, 
public entities and retirement plans.

•	

•	

•	

BOSC, includes brokerage and trading revenue, which 
consists of institutional trading, retail brokerage, financial 
risk management and investment banking

Brokerage and trading revenue increased 55%, excluding 
two non-recurring derivative counterparty losses

Assets under management total $30 billion including  
$11.5 billion in discretionary assets

Retirement & Institutional
Trust Services 8%

Corporate Trust 5%

Personal Trust
16%

Private Banking
15%

BOSC
56%

CrediT rATingS

  BOK Financial Corp.

Fitch 

Moody’s 

Standard & Poor’s 

DBRS

  Long-Term Rating 

  Outlook 

A- 

Stable 

A2 

Stable 

BBB+ 

Stable 

A (low)

Stable

  Bank of Oklahoma, N.A.

  Long-Term Rating 

  Short-Term Rating 

A- 

F1 

A1 

P-1 

A- 

A-2 

A

R-1 (low)

07

 
 
 
 
2008 BoArd memBerS

BoK FinAnCiAl CorPorATion BoArd oF direCTorS

Gregory S. Allen 1
President & CEO
Advance Food Co., Inc.

C. Fred Ball, Jr. 2
Senior Chairman
Bank of Texas, N.A.

Sharon J. Bell 1
Managing Partner
Rogers & Bell

Peter C. Boylan, III 1
CEO
Boylan Partners, LLC

Chester Cadieux, III 1 
Chairman & CEO
QuikTrip Corporation

Joseph  W. Craft, III 1
President & CEO
Alliance Resource Partners

William E. Durrett
Senior Chairman
American Fidelity Corp.

John Gibson 1
CEO
ONEOK, Inc.

David F. Griffin 1
President & General Manager
Griffin Communications, L.L.C.

V. Burns Hargis 1
President
Oklahoma State University

E. Carey Joullian, IV 1
Chairman, President  & CEO
Mustang Fuel Corporation

George B. Kaiser 1
Chairman
BOK Financial Corporation and  
Bank of Oklahoma, N.A.

Robert J. LaFortune
Personal Investments

Stanley A. Lybarger 1,2
President & CEO
BOK Financial Corporation and  
Bank of Oklahoma, N.A.

Steven J. Malcolm 1
Chairman, President & CEO
The Williams Companies, Inc.

Paula Marshall 1
CEO
Bama Companies

EC Richards 1
Manager
Core Investment Capital, LLC

08

1  Director of BOK Financial Corporation and Bank of Oklahoma, N.A.

2  Director of BOK Financial Corporation and Bank of Texas, N.A.

Rudy A. Davalos
Chairman of the Executive Board
New Mexico Bowl

Ryan J. Suchala
President
Bank of Arizona, N.A.

BoArd oF direCTorS

Bank of Albuquerque
Adelmo Archuleta
Owner, Professional Engineer
Molzen-Corbin & Associates

Suzanne Barker-Kalangis, Esq.
Executive Director 
Thornburg Charitable Foundation

Steven G. Bradshaw
Senior Executive Vice President
BOK Financial Corporation

William E. Garcia
Retired Senior Manager, Public 
Affairs
Intel Corporation

Robert M. Goodman
Retired, Vice Chairman
Bank of Albuquerque, N.A.

Thomas D. Growney
President
Tom Growney Equipment, Inc.

Edward Larrañage
Senior Vice President
Bank of Albuquerque, N.A.

Larry F. Levy 
Senior Vice President
Bank of Albuquerque, N.A.

Douglas L. Ruhl
Chairman & CEO
Bank of Albuquerque, N.A.

Mark E. Sauters
Senior Vice President
Bank of Albuquerque, N.A. 

Michael D. Sivage
Chief Executive Officer
STH Investments, Inc.

Jennifer S. Thomas
President
Bank of Albuquerque, N.A.

James F. Ulrich
Vice Chairman
Bank of Albuquerque, N.A.

Dale W. Updegrove
Senior Vice President
BOK Financial Corporation

Bank of Arizona
Shelley M. Cohn

Dennis J. Cornelius
Cornelius Korte Shum, LLC

Charles E. Cotter
Executive Vice President
BOK Financial Corporation

Susan M. Haugland
President
Bestbill®

Scott P. LeMarr
President
Palo Cristi Investments

Don T. Parker
Executive Vice President
BOK Financial Corporation

Marc C. Maun
Chairman & CEO
Bank of Kansas City, N.A.

Mark B. Wade 
President & COO
Bank of Texas, N.A. - Dallas

David A. Ralston
Chairman & CEO
Bank of Arizona, N.A.

Andrew Spillum, CPA
Partner
Eide Bailly CPA’s &  
Business Advisors

Bank of Arkansas
John W. Anderson
Senior Vice President
Bank of Oklahoma, N.A.

Mark Bethell
COO  
Northwest Medical
Center of Benton County

Jett C. Cato
Executive Vice President & COO
Bank of Arkansas, N.A.

Lawrence L. Daniel
Executive Vice President
Bank of Arkansas, N.A.

Jeffrey R. Dunn
Chairman, President & CEO
Bank of Arkansas, N.A.

Daniel H. Ellinor
Senior Executive Vice President
BOK Financial Corporation

George C. Faucette, Jr.
Owner 
Coldwell Banker Faucette 
Real Estate Company

Jeannie Fleeman
Owner 
Dynamic Enterprises and 
Dynamic Development 

Mark W. Funke
President
Bank of Oklahoma, N.A.
Oklahoma City

Dr. Stephen Lee Goss
Physician Executive
Mercy Health Systems of
Northwest Arkansas

Bank of Kansas City
Donald O. Borgman
Retired

Steven E. Nell
Executive Vice President & CFO
BOK Financial Corporation

Randall L. Walker
Chairman
Bank of Texas, N.A. - Houston

Colorado State Bank
and Trust
Aaron K. Azari
Vice Chairman
CSBT

George P. Caulkins, III
Principal
Greendeck Capital

Ralph W. Christie, Jr.
Chairman, President & CEO
Merrick & Company

Thomas M. Foncannon
Senior Vice President
Bank of Oklahoma, N.A.

Polly B. Lestikow 
President
Closet Factory

Richard H. Lewis
Personal Investments

Kirk MacDonald
COO
Creative Loafing Media
Publisher, Chicago Reader

James M. Mulligan 
Of Counsel
Snell & Wilmer

Jeff S. Potter 
CEO
Exclusive Resorts

William J. Sullivan
President
CSBT

Gregory K. Symons
Chairman & CEO
CSBT

H. Shaw Thomas
Senior Vice President
CSBT

Susan Stanton
President & CEO
Kansas City Public Television

Bank of Texas
C. Thomas Abbott 
Vice Chairman
Bank of Texas, N.A. - Dallas

Norman P. Bagwell 
Chairman & CEO
Bank of Texas, N.A. - Dallas

C. Fred Ball, Jr. 
Senior Chairman
Bank of Texas, N.A. - Dallas

Steven G. Bradshaw
Senior Executive Vice President
BOK Financial Corporation

Charles E. Cotter
Executive Vice President
BOK Financial Corporation

H. Lynn Craft
President & CEO
Baptist Foundation of Texas

Charles W. Eisemann
Personal Investments

Douglas D. Hawthorne
President & CEO
Texas Health Resources

Bill D. Henry
Chairman & CEO
McQuery Henry Bowles Troy, LLP

James M. Johnston
Vice Chairman
Bank of Texas, N.A. - Dallas

Stanley A. Lybarger
President & CEO
BOK Financial Corporation

Steven E. Nell
Executive Vice President & CFO
BOK Financial Corporation

Albert W. Niemi, Jr.
Dean, Cox School of Business
Southern Methodist University

Robert W. Semple
Chairman & CEO
Bank of Texas, N.A. - Ft. Worth

Steven G. Bradshaw
Senior Executive Vice President
BOK Financial Corporation

Robert B. Trainer
Chief Financial Officer
Gyrodata, Inc.

Lorelei M. Dean
President
Dean Machinery 

Tom E. Turner
Retired Chairman
Bank of Texas, N.A. - Dallas

Daniel H. Ellinor
Senior Executive Vice President
BOK Financial Corporation

Lissa Walls Vahldiek
Executive
Southern Newspapers, Inc.

Steven E. Nell
Executive Vice President & CFO
BOK Financial Corporation

Timothy A. Johnson
Director of Finance
Garmin International

John C. Vogt
Personal Investments

09

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

Common Shares:
Traded NASDAQ National Market

NASDAQ Symbol: BOKF

Number of common shareholders of record at 
December 31, 2008: 977  

Market Makers:

Alternate Display Facility

Archipelago Stock Exchange

Automated Trading Desk

Barclays Capital Inc./Le

Bats Trading, Inc.

BMO Capital Markets U.S.

Cantor, Fitzgerald & Co.

Chicago Board Options Exchang

Citadel Derivatives Group LLC

Citigroup Global Markets Inc.

Credit Suisse

Domestic Securities, Inc.

E*Trade Capital Markets Llc

Fox-Pitt, Kelton

Friedman, Billings, Ramsey & Co., Inc.

Goldman Sachs Research

Howe Barnes Investments

Hudson Securities, Inc.

Int’l Securities Exchange

Jefferies & Company, Inc.

Keefe, Bruyette & Woods, Inc.

Knight Equity Markets, L.P.

Merrill Lynch

Morgan Stanley

Nasdaq Execution Services LLC

National Stock Exchange

OTA Limited Partnership

Pershing LLC

Piper Jaffray

RBC Dain Rauscher

Sandler O’Neill & Partners

Stephens Inc.

Stifel Nicolaus and Company, Incorporated

SunTrust Capital Markets Inc

Susquehanna Financial Group LLLP

Susquehanna Financial Group,

Thomas Weisel Partners LLC

Timber Hill Inc.

UBS Securities LLC

Wachovia Securities

Transfer Agent, Registrar and Dividend 
Disbursing Agent 
Computershare Investor Services, LLC
P.O. Box 43078
Providence, RI 02940
(800) 568-3476
www.computershare.com

Copies of BOK Financial Corporation’s Annual Report to 
Shareholders, Quarterly Reports and Form 10-K to 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 Stacy C. Kymes, Senior Vice President, 
(918) 588-6752. 

Information about BOK Financial Corporation is also readily 
available at: www.bokf.com

Registered shareholders of BOK Financial Corporation stock 
may reinvest dividends and purchase additional shares through 
the Computershare Investment Plan. Certain restrictions 
apply. Shareholders may obtain a plan brochure by writing to 
Computershare, c/o CIP for BOK Financial, P.O. Box 43078, 
Providence, RI  02940, by calling 1-800-568-3476 or visiting 
www.computershare.com.

10

As filed with the Securities and Exchange Commission on February 27, 2009 

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

 (Mark One)  

FORM 10-K 

⌧ 

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

For the fiscal year ended December 31, 2008 

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) 

73-1373454 
(IRS Employer Identification No.) 

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

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 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 $1,196,113,935  (based on the June 30, 2008 closing price of Common Stock of $53.45 per share).  As of 
January 31, 2009, there were 67,482,730 shares of Common Stock outstanding. 

Part III incorporates certain information by reference from the Registrant’s Proxy Statement for the 2009 Annual 

Meeting of Shareholders. 

DOCUMENTS INCORPORATED BY REFERENCE 

 
 
 
 
  
  
  
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 

BOK FINANCIAL CORPORATION 
ANNUAL REPORT ON FORM 10-K 
INDEX 

PAGE 

1. 

1A. 

1B. 

2. 

3. 

4. 

5. 

6. 

7. 

7A. 

8. 

9. 

9A. 

9B. 

10. 

11. 

12. 

13. 

14. 

15. 

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 Financial Officer Section 302 Certification, Exhibit 31.2 

Section 906 Certifications, Exhibit 32 

1 

6 

9 

9 

9 

9 

9 

11 

12 

55 

58 

110 

110 

110 

111 

111 

111 

111 

111 

111 

118 

120 

121 

122 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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.”  Information regarding BOK 
Financial’s acquisitions is set forth in Note 2 of the Company’s Notes to Consolidated Financial Statements, which appear 
elsewhere herein.    

Description of Business 

BOK Financial is a financial holding company 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, Dallas, Fort Worth and Houston, Texas, Albuquerque, New Mexico, Northwest Arkansas, Denver, 
Colorado, Phoenix, Arizona, and Kansas City, Missouri / Kansas.  Principal subsidiaries are Bank of Oklahoma, N.A. ("BOk"), 
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. (collectively, the “Banks”).  Other subsidiaries 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 BOKF financial statements.   

Our overall strategic objective is to emphasize growth in long-term value by building on our leadership position in Oklahoma and 
expanding into high-growth markets.  We have a solid position in Oklahoma and are the state’s largest financial institution as 
measured by deposit market share.  Since 1997, we have expanded into Dallas, Fort Worth and Houston, Texas, Albuquerque, 
New Mexico, Denver, Colorado, Phoenix, Arizona, and Kansas City, Missouri / Kansas.  We are currently exploring 
opportunities for further growth in our regional markets. 

Our primary focus is to provide a broad range of financial products and services, including loans and deposits, cash management 
services, fiduciary services, mortgage banking and brokerage and trading services to middle-market businesses, financial 
institutions and consumers.  Our revenue sources are diversified.  Approximately 39% of our 2008 revenue came from 
commissions and fees. 

Commercial banking is 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 activities. 

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 for each of our bank subsidiaries.  We also consider acquisitions of 
distressed financial institutions in selected markets when opportunities become available. 

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.  Our 
principal lines of business have been re-defined from the previous year to better present the Company’s organization as it has 
grown in markets outside of Oklahoma.  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 electronic funds 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.  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 18 of the Company’s Notes to Consolidated Financial Statements, both of which appear 
elsewhere herein.   

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 

  1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
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, 2008.   

BOk is the largest banking subsidiary of BOK Financial and has the largest market share in Oklahoma with 12% of the state’s 
total deposits.  In the Tulsa and Oklahoma City areas, BOk has 24% and 11% of the market share, respectively.  BOk competes 
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.  BOk also competes 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.   

Through other subsidiary banks, BOK Financial competes in Dallas, Fort Worth and Houston, Texas, Albuquerque, New Mexico, 
Denver, Colorado, Phoenix, Arizona, Northwest Arkansas, and Kansas City, Missouri / Kansas.  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 4 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, Scottsdale and Tucson.  Bank of Arkansas serves Benton and 
Washington counties in Arkansas, and Bank of Kansas City serves the Kansas City market.  The Company’s ability to expand 
into additional states remains subject to various federal and state laws. 

Employees 

As of December 31, 2008, BOK Financial and its subsidiaries employed 4,300 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, maintain certain capital balances and pay higher deposit insurance premiums.   

Proposals to change laws and regulations governing the banking industry are frequently introduced in Congress, in the state 
legislatures and before bank regulatory agencies.  It is generally probable  that laws and regulations affecting banks will increase 
and become more restrictive in the current economic environment.  The likelihood and timing of any specific new proposals or 
legislation and the impact they might have on the Company and its subsidiaries cannot be predicted at this time.   

The following information summarizes certain 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. 

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 national banking associations 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 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 

  2

 
 
 
 
 
 
 
 
 
 
 
 
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, 2008, BOK Financial’s Tier 1 and total capital ratios under these guidelines 
were 9.40% and 12.81%, respectively. 

The leverage ratio is determined by dividing Tier 1 capital by adjusted average total assets.  Banking organizations are required to 
maintain a ratio of at least 5% to be classified as well capitalized.  BOK Financial’s leverage ratio at December 31, 2008 was 
7.89%.   

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, 2008.   

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. In 2004, the BIS published a new capital accord to replace its 1988 capital accord, with an update 

  3

 
 
 
 
 
  
 
 
 
 
in November 2005 (“Basel II”). Basel II provides two approaches for setting capital standards for credit risk — an internal 
ratings-based approach tailored to individual institutions’ circumstances (which for many asset classes is itself broken into a 
“foundation” approach and an “advanced or A-IRB” approach, the availability of which is subject to additional restrictions) and a 
standardized approach that bases risk weightings on external credit assessments to a much greater extent than permitted in 
existing risk-based capital guidelines. Basel II also would set capital requirements for operational risk and refine the existing 
capital requirements for market risk exposures.  

The U.S. banking and thrift agencies are developing proposed revisions to their existing capital adequacy regulations and 
standards based on Basel II. In September 2006, the agencies issued a notice of proposed rulemaking setting forth a definitive 
proposal for implementing Basel II in the United States that would apply only to internationally active banking organizations — 
defined as those with consolidated total assets of $250 billion or more or consolidated on-balance sheet foreign exposures of 
$10 billion or more — but that other U.S. banking organizations could elect but would not be required to apply. Furthermore, the 
U.S. agencies are proposing only to implement the most advanced version of Basel II, the A-IRB option.  In December 2006, the 
agencies issued a notice of proposed rulemaking describing proposed amendments to their existing risk-based capital guidelines 
to make them more risk-sensitive, generally following aspects of the standardized approach of Basel II. These latter proposed 
amendments, often referred to as “Basel I-A”, would apply to banking organizations that are not internationally active banking 
organizations subject to the A-IRB approach for internationally active banking organizations and do not “opt in” to that approach. 
The agencies previously had issued advance notices of proposed rulemaking on both proposals (in August 2003 regarding the A-
IRB approach of Basel II for internationally active banking organizations and in October 2005 regarding Basel I-A).  

BOK Financial is not an internationally active banking organization and has not made a determination as to whether or when it 
would opt to apply the A-IRB provisions applicable to internationally active U.S. banking organizations once they become 
effective.  Recent U.S. bank regulatory proposals indicate that the U.S. banking system will permit adoption of a “standardized” 
approach for Basel II in lieu of the 1-A proposal for non-core Basel II institutions.  BOK Financial does not anticipate any 2009 
developments on the regulatory front regarding regulatory capital models for non-opt in banks.  We do believe that previously 
authorized approaches toward regulatory capital that permitted reduced regulatory capital in mandatory and opt-in banks will be 
modified.   

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 16 
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”).  As of January 1, 2007, the previous nine risk categories utilized in the risk matrix were condensed 
into four risk categories, which continue to be 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.  Deposit insurance rates are expected to increase in 2009. 

In 2008, the FDIC extended deposit insurance coverage through its Temporary Liquidity Guaranty Program (“TGLP”).  TGLP 
consists of two basic components, a guarantee of certain newly issued unsecured debt of eligible financial institutions and full 
guarantee of certain deposit accounts as defined by the program.  Eligible debt issued before June 30, 2009 will be fully protected 
through the earlier of the maturity of the debt or June 30, 2012.  Eligible deposits will be fully protected until December 31, 
2009.  The Company’s subsidiary banks have elected to participate in both components of the TGLP.  The Company has not 
issued any debt under this guaranty program. 

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.  Based on the most restrictive limitations, the Banks had excess regulatory capital and could declare up to $171 
million of dividends without regulatory approval as of December 31, 2008.  BOK Financial management has developed and the 
Board of Directors has approved an internal capital policy that is more restrictive than the regulatory standards.  Under this 
policy, the Banks could declare dividends of up to $119 million as of December 31, 2008.  These amounts are not necessarily 
indicative of amounts that may be available to be paid in future periods.   

  4

  
  
 
 
 
  
 
 
 
 
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 a significant ongoing 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 TLGP, 
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.  The immediate and long-term effects 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.  We believe that current capital sources are 
sufficient to support organic growth, acquisitions within our current market areas, cash dividends on our common stock and 
periodic stock repurchases. 

The Sarbanes-Oxley Act (the “Act”) addresses many aspects of financial reporting, corporate governance and public company 
disclosure.  Among other things, the Act establishes a comprehensive framework for the oversight of public company auditing 
and for strengthening the independence of auditors and audit committees. Under the Act, audit committees are responsible for the 
appointment, compensation and oversight of the work of the auditors. The non-audit services that can be provided to a company 
by its auditor are limited.  Audit committee members are subject to specific rules addressing their independence.  The Act also 
requires enhanced and accelerated financial disclosures, and it establishes various responsibility measures, such as requiring the 
chief executive officer and chief financial officer to certify to the quality of the company’s financial reporting.  The Act imposes 
restrictions on and accelerated reporting requirements for certain insider trading activities.  It imposes a variety of penalties for 
fraud and other violations and creates a federal felony for securities fraud.  Various sections of the Act are applicable to BOK 
Financial.   

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

Foreign Operations 

  5

 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM 1A.   RISK FACTORS 

Since 2007, the United States economy has been in recession.  Business activity across a wide range of industries and geographic 
regions has decreased and unemployment has 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 have either failed or required a significant amount of government assistance due to credit losses 
and liquidity shortages.  There is no assurance that these conditions will improve in the near term.  Continued recession in the 
economy could adversely affect our credit quality, financial condition and results of operations. 

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. 

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 
  6

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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. 

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.  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. 

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. 

Legislation is being considered that would potentially override the credit enhancement of some privately issued mortgage-backed 
securities.  The considered legislation may allow terms of a mortgage loan to be modified in the case of bankruptcy.  In some 
cases, the reduction of principal owed on the loan would be applied pro rata to tranches of the mortgage-backed security instead 
of following the “water fall” structure of the tranches.  The considered legislation, if enacted, could have a material adverse effect 
on the fair value of certain of our mortgage-backed securities. 

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. 

  7

 
 
 
 
 
 
 
 
 
 
 
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 and the National Bank 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. 

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 extensive regulation is likely to continue in the future.  Laws, regulations or policies currently affecting us and 
BOK Financial's 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. 

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 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 

  8

 
 
 
 
 
 
 
 
 
 
 
 
 
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 $198 million, net of depreciation and 
amortization.  The Company’s principal offices are located in leased premises in the Bank of Oklahoma Tower, 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, Missouri / Kansas.  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 6 and 15 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 15 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, 2008.   

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, 
2009, common shareholders of record numbered 982 with 67,482,730 shares outstanding. 

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

2008: 

Low 
High 
Cash dividends 

2007: 

Low 
High 
Cash dividends 

First 

$46.82 
55.23 
0.20 

$49.37 
55.43 
0.15 

Second 

$49.11 
60.74 

0.225 

$48.59 
54.96 
0.20 

Third 

$38.61 
53.94 

0.225 

$47.37 
54.20 
0.20 

Fourth 

$38.40 
54.42 

0.225 

$51.44 
55.43 
0.20 

  9

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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, 2003 and ending December 31, 2008.* 

Shareholder Return Performance Graph 

Total Return Performance

BOK Financial Corporation

NASDAQ Composite

NASDAQ Bank

KBW 50

200

175

150

125

100

75

50

25

e
u
l
a
V
x
e
d
n

I

12/31/03

12/31/04

12/31/05

12/31/06

12/31/07

12/31/08

Period Ending 

Index 

BOK Financial Corporation 
NASDAQ Composite 
NASDAQ Bank Index 
KBW 50 

12/31/03 

12/31/04 

12/31/05 

12/31/06 

12/31/07 

12/31/08 

100.00 
100.00 
100.00 
100.00 

129.71 
108.59 
110.99 
111.54 

121.66 
110.08 
106.18 
111.34 

148.86 
120.56 
117.87 
132.94 

141.99 
132.39 
91.85 
103.95 

112.97 
78.72 
69.88 
54.52 

* Graph assumes value of an investment in the Company’s Common Stock for each index was $100 on December 31, 2003. The KBW 50 Bank 
index is the Keefe, Bruyette & Woods, Inc. index, which is available only for calendar quarter end periods. During the periods shown, no 
dividends were paid on BOK Financial Common Stock, except on May 31, 2004, the Company paid a 3% dividend on BOK Financial 
Common Stock outstanding as of May 10, 2004.  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, 2008. 

Period 

Total Number of 
Shares Purchased (2)

Average Price 
Paid per Share 

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

October 1, 2008 to October 31, 2008 

November 1, 2008 to November 30, 2008 

December 1, 2008 to December 31, 2008 

Total 

– 

4,979 

2,348 

7,327 

– 

$42.27 

$41.88 

– 

– 

– 

– 

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

1,215,927 

1,215,927 

1,215,927 

(1)  The Company had a stock repurchase plan that was initially authorized by the Company’s board of directors on February 24, 1998 and 

amended on May 25, 1999.  Under the terms of that plan, the Company could repurchase up to 800,000 shares of its common stock.  
As of March 31, 2005, the Company had repurchased 638,642 shares under that plan.  On April 26, 2005, the Company’s board of 
directors terminated this authorization and replaced it with a new stock repurchase plan authorizing the Company to repurchase up to 
two million shares of the Company’s common stock.  As of December 31, 2008, the Company had repurchased 784,073 shares under 
the new 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) 

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 

December 31, 

2008 

2007 

2006 

2005 

2004 

  $ 1,061,645 
414,783 
646,862 
202,593 
414,000 
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 

  $  769,934 
320,593 
449,341 
12,441 
344,864 
201,505 

  $  614,284 
191,041 
423,243 
20,439 
312,227 
179,023 

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 

9,088,312 
16,327,069 
11,375,318 
295,964 
1,539,154 
40,017 

7,888,705 
14,145,660 
9,674,398 
151,594 
1,398,494 
61,112 

Profitability Statistics 

Earnings per share (based on average equivalent shares): 

Basic 
Diluted 

Percentages (based on daily averages): 

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

  $ 

2.28 
2.27 

  $ 

3.24 
3.22 

  $ 

  $ 

3.19 
3.16 

  $ 

3.14 
3.01 

3.00 
2.68 

0.71% 
7.87 
9.01 

1.14% 

12.01 
9.53 

1.27% 
13.23 
9.58 

1.29%

13.78 
9.38 

1.28%

13.80 
9.25 

Common Stock Performance  

Per Share: 

Book value per common share5 
Market price: December 31 close 
Market range  – High close 
– Low close 

Cash dividends declared 

Selected Balance Sheet Statistics 

Period-end: 

  $ 

  $ 

  $ 

27.36 
40.40 
60.84 
38.48 
0.875 

28.75 
51.70 
55.57 
47.47 
0.75 

  $ 

25.66 
54.98 
54.98 
44.43 
0.55 

  $ 

23.07 
45.43 
49.31 
39.79 
0.30 

23.28 
48.76 
49.18 
37.29 
– 

Tier 1 capital ratio 
Total capital ratio 
Leverage ratio 
Tangible common equity ratio1 
Reserve for loan losses to nonperforming loans 
Reserve for loan losses to loans 
Combined reserves for credit losses to loans 4 

9.40% 
12.81 
7.89 
6.64 
74.49 
1.81 
1.93 

9.38% 
12.54 
8.20 
7.72 
133.79 
1.06 
1.24 

9.78% 

9.84%

11.58 
8.79 
8.22 
305.37 
1.03 
1.22 

12.10 
8.30 
7.94 
329.34 
1.14 
1.37 

10.02%
11.67 
7.94 
8.31 
189.40 
1.38 
1.61 

Miscellaneous (at December 31) 

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

4,300 
195 
1,933 
   $30,454,512 
    5,983,824 

4,110 
189 
1,822 
   $36,288,592 
    5,481,736 

3,958 
163 
1,649 
   $31,704,091 
    4,988,611 

3,825 
150 
1,421 

3,548
149
1,389
  $ 28,464,745    $  24,589,053
4,486,513
    4,492,524     

1 

2 

3 
4 
5 

Shareholders’ equity less preferred equity, intangible assets and equity provided by the TARP Capital Program 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 reserve for loan losses and reserve for off-balance sheet credit losses. 
Conversion of Series A preferred stock added 6.9 million common shares outstanding in 2005. 

  12

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Management’s Assessment of Operations and Financial Condition 

Overview 

BOK Financial Corporation (“BOK Financial” or ”the Company”) is a financial holding company that offers full service banking 
in Oklahoma, Northwest Arkansas, Dallas, Forth Worth and Houston, Texas, Albuquerque, New Mexico, Denver, Colorado, 
Phoenix, Arizona and Kansas City, Missouri / Kansas.  The Company was incorporated in 1990 in Oklahoma and is 
headquartered in Tulsa, Oklahoma.   Activities are governed by the Bank Holding Company Act of 1956, as amended by the 
Financial Services Modernization Act or Gramm-Leach-Bliley Act of 1999.  Principal banking subsidiaries are Bank of 
Oklahoma, N.A., Bank of Albuquerque, N.A., Bank of Arkansas, N.A., Bank of Texas, N.A., Colorado State Bank and Trust, 
N.A., Bank of Arizona, N.A. and Bank of Kansas City, N.A.  Other subsidiaries include BOSC, Inc. a broker/dealer that engages 
in retail and institutional securities sales and municipal bond underwriting.   

Our overall strategic objective is to emphasize growth in long-term value by building on our leadership position in Oklahoma and 
expanding into high-growth markets in contiguous states.   We have a solid position in Oklahoma and are the state’s largest 
financial institution as measured by deposit market share.  At December 31, 2008, 46% of our outstanding loans and 60% of our 
deposits are attributed to the Oklahoma market.  Since 1997, we have expanded into Dallas, Fort Worth and Houston, Texas, 
Albuquerque, New Mexico, Denver, Colorado, Phoenix, Arizona and Kansas City, Missouri / Kansas.  At December 31, 2008, 
29% of our outstanding loans and 23% of our deposits are attributed to Texas.  None of our other regional markets provide more 
than 10% of our outstanding loans or deposits.  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 selected markets when 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.  Our 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 is 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 activities.    
Our revenue sources are diverse.  Historically, fees and commissions revenue provide 40% - 45% of our total revenue.  
Approximately 39% of our revenue came from commissions and fees in 2008 due to credit losses incurred on two positions in 
our customer hedging program.  

BOK Financial operates three principal lines of business: commercial banking, consumer banking and wealth management.  Our 
principal lines of business have been re-defined from the previous year to better present the Company’s organization as it has 
grown in markets outside of Oklahoma.  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 electronic funds 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.   

The financial services industry experienced significant disruptions during 2008.  Numerous financial institutions either failed or 
required a significant amount of government assistance due to credit losses and liquidity shortages.  Loan losses, which initially 
were limited to residential construction loans in certain markets, spread to other commercial real estate loans and commercial 
loans.  Credit spreads on certain financial instruments, such as some mortgage-backed securities, widened extremely due to 
uncertainty of the underlying cash flows.  This uncertainty and lack of trading volumes significantly decreased the fair value of 
these instruments.  Energy prices were extremely volatile during the year.  The price of oil exceeded $140 per barrel in mid-year 
then fell to under $40 per barrel by year end.  These market events reduced our net income for 2008, but did not significantly 
impair our operations. 

Performance Summary 

BOK Financial’s net income for 2008 totaled $153 million or $2.27 per diluted share compared with $218 million or $3.22 per 
diluted share in 2007. 

Highlights of 2008 included: 

•  Net interest revenue increased $102 million or 19% over 2007.  Average earning assets were up $2.0 billion or 12%.  

Net interest margin was 3.45% for 2008, up 17 basis points over 2007. 

  13

 
 
 
 
 
 
 
 
 
 
 
 
•  Combined reserves for credit losses totaled $248 million or 1.93% of outstanding loans at December 31, 2008, up from 
$148 million or 1.24% of outstanding loans at December 31, 2007.  Provision for credit losses and net charge-offs were 
$203 million and $102 million, respectively for 2008 and $35 million and $21 million, respectively, for 2007. 

•  Non-performing assets totaled $342 million or 2.65% of outstanding loans and repossessed assets at December 31, 

2008, up from $104 million or 0.87% of outstanding loans and repossessed assets at December 31, 2007. 

• 

• 

• 

• 

Fees and commissions revenue totaled $414 million for 2008 and $406 million for 2007.  Net credit losses on 
derivative contracts related to two bankrupt counterparties reduced fees and commissions revenue by $54 million in 
2008. 

The fair value of mortgage servicing rights, net of economic hedging gains or losses decreased $24 million in 2008 and 
$3 million in 2007.   Anticipated prepayment speeds increased significantly during the fourth quarter in response to 
government programs to lower mortgage interest rates.  

The Company evaluated and elected not to participate in the U.S. Treasury’s TARP Capital Purchase Program.  Tier 1 
and tangible common equity ratios were 9.40% and 6.64%, respectively, at December 31, 2008.  Tier 1 and tangible 
common equity ratios were 9.38% and 7.72%, respectively, at December 31, 2007.  The decrease in tangible common 
equity ratio was due largely to a $182 million after-tax increase in unrealized losses on available for sale securities. 

The Company elected to participate in the FDIC’s Temporary Liquidity Guarantee Program.  This Program provides 
full deposit insurance coverage of non-interest bearing, transaction deposit accounts and guarantees certain newly 
issued senior unsecured debt.  The Company has not issued any guaranteed debt under this program. 

Net income for the fourth quarter of 2008 totaled $35 million or $0.53 per diluted share compared with $51 million or $0.76 per 
diluted share for the fourth quarter of 2007.   

Highlights of the fourth quarter of 2008 included: 

•  Net interest revenue totaled $176 million, up $35 million over the fourth quarter of 2007.  Net interest margin was 

3.57% for the fourth quarter of 2008 and 3.22% for the fourth quarter of 2007.   

•  Net loans charged off and provision for credit losses were $34 million and $73 million, respectively for the fourth 

quarter of 2008.  Net loans charged off and provision for credit losses were $7.3 million and $13 million, respectively, 
for the fourth quarter of 2007. 

• 

The fair value of mortgage servicing rights, net of economic hedging gains or losses decreased $11 million in 2008 and 
$2 million in 2007.    

Critical Accounting Policies 

Application of Critical Accounting Policies 

Preparation of our consolidated financial statements is based on the selection of certain accounting policies, which requires 
management to make significant assumptions and estimates.  The following discussion addresses the most critical areas where 
these assumptions and estimates could affect financial condition and results of operations.  Actual results could differ 
significantly from these estimates.  Application of these critical accounting policies and estimates has been discussed with the 
appropriate committees of the Board of Directors.  Additional accounting policies are described in Note 1 to the Consolidated 
Financial Statements. 

New accounting standards first adopted in 2008 included Statement of Financial Accounting Standards No. 159, “Fair Value 
Option” (“FAS 159”).  FAS 159 provides an option to measure eligible financial assets and financial liabilities at fair value.  
Certain certificates of deposit that were either currently designated as hedged or had previously been designated as hedged, but 
no longer met the correlation requirements of Statement of Financial Accounting Standards No. 133, “Accounting for Derivative 
Instruments and Hedging Activities” (“FAS 133”), were designated as being reported at fair value.  The initial adoption of FAS 
159 did not significantly affect the Company’s financial statements.  In addition, certain certificates of deposit issued subsequent 
to the adoption of FAS 159 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.  The effect of FAS 159 on our 2008 operations is presented in Note 4 to the Consolidated Financial Statements. 

  14

 
 
 
 
 
       
 
 
 
 
 
 
 
 
 
 
Reserves for Loan Losses and Off-Balance Sheet Credit Losses  

Reserves 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 that includes reserves assigned to specific 
loans and commitments, general reserves that are based on a statistical migration analysis and nonspecific reserves that are based 
on analysis of current economic conditions, loan concentrations, portfolio growth and other relevant factors. 

An independent Credit Administration department is responsible for performing this evaluation for all of our subsidiaries to 
ensure that the methodology is applied consistently.  

Specific reserves for impairment are determined through evaluation of estimated future cash flows, collateral values and 
historical statistics in accordance with Statement of Financial Accounting Standards No. 114, “Accounting by Creditors for the 
Impairment of a Loan”, regulatory accounting standards and other authoritative literature.  Commercial and commercial real 
estate loans and commitments in excess of $1 million are reviewed for impairment.  Significant loans and commitments that 
exhibit weaknesses or deteriorating trends are individually reviewed quarterly. 

General reserves for commercial and commercial real estate loan losses and related commitments not evaluated individually for 
impairment are determined primarily through an internally developed migration analysis model.  The purpose of this model is to 
determine the probability that each credit relationship in the portfolio has an inherent loss based on historical trends.  We use an 
eight-quarter aggregate accumulation of net losses as a basis for this model.  Greater emphasis is placed on loan losses in more 
recent periods.  A minimum reserve level is established for each loan grade based on long-term loss history.  This model assigns 
a general reserve to all commercial loans and leases and commercial real estate loans, excluding loans that have a specific 
impairment reserve. 

Separate models are used to determine the general reserve for residential mortgage loans, excluding residential mortgage loans 
held for sale, and consumer loans.  The general reserve for residential mortgage loans is based on an eight-quarter average 
percent of loss.  General reserves for consumer loans are based on a migration of loans from current status to loss.  Separate 
migration factors are determined by major product line, such as indirect automobile loans and direct consumer loans. 

Nonspecific reserves 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, such as energy, commercial real estate and homebuilders and agriculture, 
concentrations in large credits and overall growth in the loan portfolio.  Evaluation of the nonspecific reserves also considers 
duration of the business cycle, regulatory examination results, potential errors in the migration analysis models and the 
underlying data, and other relevant factors.  A range of potential losses is determined for each factor identified. 

A separate reserve for off-balance sheet credit risk is maintained.  The provision for credit losses includes the combined charge to 
expense for both the reserve for loan losses and the reserve for off-balance sheet credit losses.  All losses incurred from lending 
activities will ultimately be reflected in charge-offs against the reserve for loan losses after funds are advanced against 
outstanding commitments and after the exhaustion of collection efforts.   

Valuation of Mortgage Servicing Rights 

We have a significant investment in mortgage servicing rights.  These rights are primarily retained from sales of loans we have 
originated or occasionally purchased from other lenders.  Originated mortgage servicing rights are initially recognized at fair 
value.  Fair value is based on market quotes for similar servicing rights, which is a Level 2 input as defined by Statement of 
Financial Accounting Standards No. 157, “Fair Value Measurements” (“FAS 157”).  Subsequent changes in fair value are 
recognized in earnings as they occur.   

There is no active market for trading in mortgage servicing rights after origination.  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 sources.  Assumptions used to 
value our mortgage servicing rights are considered Level 3 inputs as defined by FAS 157 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 adjusted 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 8 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, a 50 basis point increase in mortgage interest rates is expected to increase the fair value of our servicing rights by 

  15

 
 
 
 
 
 
 
 
 
 
 
$10 million.  A 50 basis point decrease in mortgage interest rates is expected to decrease the fair value of our servicing rights by 
$11 million.   

Intangible Assets 

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 business units is estimated by the discounted future earnings method.  Income growth is projected 
over a seven-year period for each unit 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 considered Level 3 inputs as defined by FAS 157 and represent our best estimate of assumptions that market 
participants would use to determine fair value of the respective business units.  The most critical assumptions in our evaluation 
were a 7.00% expected long-term growth rate, a 0.66% volatility factor for BOK Financial common stock, a 9.36% discount rate 
and a 11.04% market risk premium. 

Approximately $240 million or 72% of total goodwill was attributed to the Texas market and $56 million or 17% of total 
goodwill was attributed to the Colorado market.  We also have $17 million of goodwill in the Arizona market and $15 million of 
goodwill in the New Mexico market.  Because of the large concentration of goodwill in the Texas and Colorado markets, the fair 
value determined by the discounted future earnings method was corroborated by comparison to the fair value of publicly traded 
banks of similar size and characteristics.  No goodwill impairment was indicated by either valuation method.   

The effect of a 10% negative change in assumptions used to evaluate goodwill impairment using the discounted future earnings 
method was simulated.  No impairment was indicated by this simulation. 

The current market value of BOK Financial common stock, a primary assumption in our goodwill impairment analysis, is 
approximately 32% below the market value used in our most recent annual evaluation.  The decline in market value is due largely 
to factors affecting the overall economy and the regional banks sector of the market.  It is not due to operating losses, losses of 
major customers or market share, or other factors specific to BOK Financial.  Therefore, we do not believe the decline in market 
value of our stock to be an event that requires a re-evaluation of our goodwill impairment.  Goodwill impairment may be 
indicated at our next annual evaluation date if the market value of our stock remains at or near current prices, or sooner if we 
incur significant operating losses or if other factors indicate a significant decline in the value of our business. 

Intangible assets with finite lives, such as core deposit intangible assets, are amortized using accelerated methods over their 
estimated useful lives.  Core deposit intangible assets generally have a weighted average life of five years based on the expected 
lives of the acquired deposit accounts.  Such assets are reviewed for impairment whenever events indicate that the remaining 
carrying amount may not be recoverable. 

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.  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 Level 2, observable market inputs as defined by FAS 157.  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 Level 2, 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 primarily based on a third-party pricing service.  We review the methodologies used 
by the pricing service and concluded them to be based on Level 2 observable market inputs.  Management evaluates the fair 

  16

 
 
 
 
 
 
 
 
 
 
 
 
values provided by the pricing service against other sources, including brokered quotes, sales or purchases of similar securities, 
and discounted cash flow analysis.   

Other-than-Temporary Impairment 

We perform a quarterly evaluation of unrealized losses on investment and available for sale securities to determine whether the 
losses are temporary or other-than-temporary as required by Statement of Financial Accounting Standards No 115, “Accounting 
for Certain Investments in Debt and Equity Securities” (“FAS 115”).   This evaluation assesses the probability of full recovery of 
the carrying value of the security and management’s ability and intent to hold the security until fair value recovers.  Temporary 
impairment, net of deferred income taxes, is recognized as charges against shareholders’ equity as part of other comprehensive 
income.  Other-than-temporary impairment is recognized through a charge against earnings. 

Impairment of debt securities rated investment grade is generally considered to be temporary.  Impairment of debt securities rated 
below investment grade by any one of the three nationally-recognized ratings agencies is evaluated further.  Securities rated 
below investment grade currently consist of mortgage-backed securities privately issued by publicly owned financial institutions.  
Other than temporary impairment is required to be recognized when it is probable that there has been an adverse change in the 
amount or timing of estimated cash flows of these securities as provided by Financial Accounting Standards Board (“FASB”) 
Staff Position EITF Issue No. 99-20-1, “Amendments to the Impairment and Interest Income Measurement Guidance of EITF 
Issue No. 99-20” (“FSP EITF 99-20-1”).  We assess the estimated cash flows by computing a loan to value ratio  for each 
security rated below investment grade  based on the original loan to value ratio inherent in the security, adjusted for changes in 
housing prices, prepayment speeds, default rates and credit enhancement.  Consideration is given to other-than-temporary 
impairment if the adjusted loan to value ratio of a specific security exceeds 85%.   

Equity securities include variable rate, preferred stocks issued by major commercial and investment banks.  Impairment 
evaluation is based on current and anticipated market conditions, the financial condition and near term prospects of each of the 
issuers and the length of time the security has been impaired.  We assess the probability that spreads over LIBOR on these 
securities will narrow and fair values will increase over a 24-month to 36-month period beginning on the most recent date that 
fair value equaled our carrying value, June 30, 2008, and concluded that the impairment was temporary at December 31, 2008. 

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 
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.  A reserve 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 reserve 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.   

Pensions 

The Company offers a defined-benefit, cash-balance pension plan to all employees who satisfied certain age and length of 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 continues to accrue on employees’ account balances at 5.25%.  Accounting 
for this plan requires management to make assumptions regarding the expected long-term rate of return on plan assets and the 
discount rate. Changes in these assumptions affect pension liability and pension expense.  Management, in consultation with 
independent actuaries, bases its assumptions on currently available information. 

  17

 
 
 
 
 
 
 
 
 
 
 
 
All plan assets are invested in the Cavanal Hill Balanced Fund.  The expected long-term return on plan assets is based on this 
fund’s life-to-date performance, adjusted for any known or expected changes in the fund’s compositions or objectives.  The 
expected return on plan assets was 7.00% for 2008 and 2007, and reduced to 5.25% for 2009. 

The discount rate, which is used to determine the present value of our obligation to provide future benefits to plan participants 
and the related interest cost, is based on a spot-rate yield curve of high-quality fixed income securities such as AA rated industrial 
and utility bonds.  A weighted average discount rate is determined by matching expected future cash outflows from the plan to 
interest rates at various spots along the yield curve.  This method of determining the discount rate is expected to better represent 
the cost of future cash flows as the static participant pool decreases over time.  The discount rate was 6.50% as December 31, 
2008 and 6.00% as of December 31, 2007.  A 25 basis point decrease in the discount rate increases the pension liability by 
approximately $800 thousand or 2% and has no significant effect on pension expense because of the curtailment of benefits.   

Stock-Based Compensation 

Stock-based compensation consists of stock options and non-vested shares awarded officers and employees of the Company.  
Awards may be granted on a discretionary basis as described in the employee stock option plan or as required by employment 
agreements and incentive compensation plans with certain executive officers.  Accounting for stock-based compensation requires 
management to make assumptions regarding the valuation of financial instruments for which there are no readily available 
market values, achievement of specified performance conditions and expected forfeiture rates. 

The majority of our stock options have graded vesting.  One-seventh of the options awarded vest annually starting one year after 
the grant date.  Options expire three years after vesting.  Each tranche of these options are considered a separate award when 
determining fair value.       

We use the Black-Scholes option pricing model.  This model requires assumptions of expected volatility of our stock price and 
expected term between grant date and exercise date, along with other inputs to determine fair value.  Assumptions used to 
determine the fair value of stock options are considered Level 2 inputs as defined by FAS 157.  Expected volatility is based on 
historical changes in our stock price measured over a period that approximates the expected term of our stock options.  Expected 
term and forfeitures are based on historical trends.  Information about assumptions used to value stock options can be found in 
Note 13 to the Consolidated Financial Statements.  Non-vested shares, which cliff-vest five years after the grant date, are valued 
at the grant-date market price for BOK Financial common stock. 

Stock options are generally granted annually.  Certain key terms and conditions of the awards, such as vesting periods and 
expiration dates, are defined by the stock option plan document.  The number of options to be awarded to each individual 
employee is recommended by management and approved by the Independent Compensation Committee of the Board of Directors 
prior to setting the exercise price.  The exercise price of the options is the closing price for the Company’s common stock on the 
second business Friday of January, which is the grant date.   

Executive incentive plans and individual employment agreements include performance conditions that may increase or decrease 
the number of awards granted based on future events.  Unrecognized compensation cost, which generally will be recognized as 
expense over the service period, based on the probable outcome of these conditions is $12 million.  Future compensation cost 
ranges from approximately $5 million if none of the performance conditions are met to $15 million if all of the performance 
conditions are met.  

Assessment of Operations 

Net Interest Revenue 

Tax-equivalent net interest revenue totaled $655 million for 2008 compared with $554 million for 2007.  Net interest revenue 
growth was driven primarily by a $2.0 billion increase in average earning assets and a 17 basis point increase in net interest 
margin. 

Average outstanding loans increased $1.2 billion and average securities increased $838 million.  Average commercial loans were 
up $777 million over 2007.  Average residential mortgage loans and consumer loans increased $192 million and $172 million, 
respectively.  Growth in the securities portfolio generally consisted of highly-rated, fixed-rate mortgage-backed securities issued 
by U.S. government agencies.  The addition of these securities supplemented the Company’s earnings in 2008. 

Growth in average earning assets was funded primarily by an $810 million increase in interest-bearing deposits and a $1.2 billion 
increase in borrowed funds.  In addition, average demand deposit accounts increased $264 million.  Table 2 shows the effects on 
net interest revenue of changes in average balances and interest rates for the various types of earning assets and interest-bearing 
liabilities. 

Growth in deposits and borrowings was also used to fund a $276 million net increase in average margin assets.  Margin assets are 
placed by the Company to secure its obligations under various derivative contracts.  Margin assets are generally reported as a 

  18

 
 
 
 
 
 
 
 
 
 
 
 
 
 
reduction of the derivative liabilities which they secure on the Company’s consolidated balance sheet.  Fees earned on margin 
assets are included in fees and commissions revenue while the related cost of funds reduces net interest revenue.  

Net interest margin, the ratio of tax-equivalent net interest revenue to average earning assets, increased to 3.45% in 2008 
compared with 3.28% in 2007.  The increase in net interest margin reflected a widening of the spread between LIBOR and the 
federal funds rates in the second half of 2008.  LIBOR is the basis for interest earned on many of our loans.  The federal funds 
rate is the basis for interest paid on many of our interest-bearing liabilities.  The widening spread increased net interest margin by 
approximately 7 basis points in 2008.  This spread has largely narrowed to its historically normal level by year end.  In addition, 
market uncertainty increased yields on mortgage-backed securities despite falling interest rates.  The average yield on our 
securities portfolio for 2008 increased 22 basis points compared with 2007.  The increase in net interest margin from widened 
spreads was partially offset by a reduction in the benefit from non-interest bearing funding sources.  This benefit decreased from 
69 basis points in 2007 to 36 basis points in 2008.  Very low market interest rates, especially in the second half of 2008 reduced 
the benefit of non-interest bearing funding sources.  Also, the previously noted increase in average margin assets funded by 
interest-bearing liabilities decreased net interest margin by 5 basis points. 

Management regularly models the effects of changes in interest rate on net interest revenue.  Based on this modeling, we expect 
net interest revenue to increase slightly over a one-year forward looking period.  However, other factors such as spreads between 
benchmark interest rates, loan spread compression, deposit product mix and overall balance sheet composition may affect this 
general expectation.   

Our overall objective is to manage the Company’s balance sheet to be essentially neutral to changes in interest rates.  
Approximately 72% of our commercial loan portfolio is 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, mortgage-
backed securities to offset the short-term nature of the majority of our funding sources.  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 $665 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.   

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

  19

 
 
 
 
 
Table 2  Volume/Rate Analysis 

(In Thousands) 

Tax-equivalent interest revenue: 

Securities 
Trading securities 
Loans 
Funds sold and resell agreements 

Total 
Interest expense: 

2008/2007 

Change Due To¹ 

2007/2006 

Change Due To¹ 

Change 

Volume 

Yield/Rate 

Change 

Volume 

Yield/Rate 

$   59,749 
2,987 
(159,817) 
(2,903) 
(99,984) 

$   45,461 
2,986 
78,623 
(304) 
126,766 

 $   14,288 
1 
(238,440) 
(2,599) 
(226,750) 

$   32,162 
904 
140,760 
2,639 
176,465 

$   20,068 
456 
134,830 
2,260 
157,614 

 $   12,094 
448 
5,930 
379 
18,851 

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

Total 
Tax-equivalent net interest revenue 
(Increase) decrease in tax-equivalent 

adjustment 

Net interest revenue 

(73,214) 
(823) 
(49,785) 
(72,976) 
(2,032) 
(2,639) 
(201,469) 
101,485 

892 
$  102,377 

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 
Decrease in tax-equivalent adjustment 
Net interest revenue 

12,679 
(50) 
(664) 
11,273 
34,907 
195 
58,340 
$ 68,426 

(85,893) 
(773) 
(49,121) 
(84,249) 
(36,939) 
(2,834) 
(259,809) 
$   33,059 

45,631 
91 
30,116 
28,864 
7,188 
4,621 
116,511 
59,954 

30,668 
158 
13,155 
29,980 
5,889 
6,595 
86,445 
$ 71,169 

14,963 
(67) 
16,961 
(1,116) 
1,299 
(1,974) 
30,066 
$   (11,215) 

(2,157) 
$   57,797 

4th Qtr 2008 / 4th Qtr 2007 

Change Due To¹ 

Change 

Volume 

Yield/Rate 

$   13,402 
820 
18,130 
(327) 
32,025 

1,526 
(7) 
5,603 
(436) 
8,502 
(4) 
15,184 
$   16,841 

$  3,388 
(11) 
(69,893) 
(884) 
(67,400) 

(27,723) 
(198) 
(17,126) 
(27,444) 
(12,572) 
(215) 
(85,278) 
  $ 17,878 

$  16,790 
809 
(51,763) 
(1,211) 
(35,375) 

(26,197) 
(205) 
(11,523) 
(27,880) 
(4,070) 
(219) 
(70,094) 
34,719 
439 
$  35,158 

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

Fourth Quarter 2008 Net Interest Revenue 

Tax-equivalent net interest revenue for the fourth quarter of 2008 totaled $179 million compared with $144 million for the fourth 
quarter of 2007.  Average earning assets increase $2.0 billion or 11%, including a $1.1 billion or 9% increase in average loans, 
net of allowance for loan losses, and a $928 million or 16% increase in average securities.  Growth in average earning assets was 
funded by a $1.8 billion increase in interest-bearing liabilities, including an $815 million increase in average interest-bearing 
deposits and a $987 million increase in other borrowings.  In addition, average demand deposits increased $264 million. 

Net interest margin was 3.57% for the fourth quarter of 2008 and 3.22% for the fourth quarter of 2007.  The previously 
mentioned widening of spread between LIBOR and federal funds rates added approximately 15 basis points to the fourth quarter 
of 2008.  In addition, market uncertainty increased yields on mortgage-backed securities despite falling short-term interest rates.  
The benefit provided by non-interest bearing funding sources was 31 basis points in the fourth quarter of 2008 and 62 basis 
points in the fourth quarter of 2007.   Very low market interest rates in 2008 reduced the benefit of non-interest bearing funding 
sources.    

2007 Net Interest Revenue 

Tax-equivalent net interest revenue for 2007 was $554 million, a $60 million or 12% increase from 2006.  Average earning assets 
increased $2.2 billion or 15%, including a $1.7 billion increase in average outstanding loans, net of allowance for loan losses, and 
a $447 million increase in average securities.  Growth in the securities portfolio generally consisted of highly-rated, fixed-rate 
mortgage backed securities issued by U.S. government agencies.  As shown in Table 2, net interest revenue increased $71 million 
due to changes in earning assets and interest bearing liabilities.  Net interest revenue growth due to earning assets was partially 
  20

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
offset by an $11 million decrease due to changes in interest yields and rates.  Changes in interest rates and yields include the 
narrowing of spreads due to competitive pressures and other market conditions. 

Other Operating Revenue 

Other operating revenue increased $38 million compared with last year due to an $8.4 million increase in fees and commission 
revenue and a $29 million increase in net gains on securities, derivatives and other assets.  Fees and commission revenue was 
reduced by $54 million from net credit losses on derivative contracts with two bankrupt counterparties during 2008.    

Diversified sources of fees and commission revenue are a significant part of our business strategy and represented 39% of total 
revenue, excluding 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 new markets.  However, current and future economic conditions, increased competition and saturation in our 
existing markets could affect the rate of future increases.   

Table 3  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 
Margin asset fees 
Other revenue 

Total fees and commissions 

Gain (loss) on sales of assets 
Gain (loss) on securities, net 
Gain (loss) on derivatives, net 

Total other operating revenue 

1  Includes net derivative credit losses of $54 million. 

Fees and Commissions Revenue 

$  

2008 
 42,8041 
100,153 
78,979 
117,528 
27,074 
10,681 
8,548 
28,233 
414,000 

(660) 
21,637 
1,299 
$   436,276 

Years ended December 31, 
2005 

2006 

2007 

$  

62,542  $  
90,425 
78,231 
109,218 
22,275 
10,058 
4,800 
28,073 
405,622 

53,413  $  
78,622 
71,037 
102,436 
26,996 
2,558 
10,166 
26,468 
371,696 

48,024  $  
72,036 
65,187 
98,361 
30,681 
62 
5,504 
25,009 
344,864 

2004 

44,221 
64,816 
57,532 
93,712 
28,189 
– 
162 
23,595 
312,227 

(928)
(8,328)
2,282 

1,225 
(3,088)
(1,474)
$   398,648  $   371,623  $   346,946  $   308,890 

7,798 
(6,895) 
1,179 

1,499 
(950) 
(622) 

Brokerage and trading revenue declined $20 million compared with 2007 due to net credit losses on derivative contracts with two 
counterparties in our customer hedging program.  These losses reduced brokerage and trading revenue by $54 million in 2008.  
As previously disclosed the principal owner of one of these counterparties, SemGroup, L.P., resigned from our Board of 
Directors on July 16, 2008.  Net credit losses on derivative contracts with SemGroup totaled $41 million.  Excluding these credit 
losses, our brokerage and trading revenue sources performed well.  Securities trading revenue more than doubled, up $26 million 
over the previous year to $49 million.  Retail brokerage revenue increased $2.8 million to $21 million, up 15% over 2007.    
Revenue from customer hedging activities excluding the two credit losses increased $7.2 million or 48% over 2007.  This growth 
rate of revenue from securities trading and customer hedging is not expected to continue in 2009.   

Transaction card revenue increased $9.7 million or 11% over 2007.  Revenue growth depends largely on the volume and amount 
of transactions processed, the number of ATM locations and the number of merchants served.  Check card revenue increased $3.9 
million or 16% due to growth in transaction volume.  The number of check card transactions processed during 2008 increased 
18% over 2007.  ATM fees grew $4.7 million or 12% compared to the previous year.  The number of TransFund ATM locations 
totaled 1,933 at December 31, 2008, up 6% over last year.  Merchant discount revenue for 2008 totaled $28 million, up 4% over 
2007.    

Trust fees increased $746 thousand or 1%.  The fair value of all trust relationships overseen by the Company, which is the basis 
for a significant portion of trust fees decreased to $30.5 billion at December 31, 2008 compared with $36.3 billion at December 
31, 2007.  The decline in fair value of trust assets was due to current market conditions.  Personal trust management fees, which 
provided 23% of total trust fees and commissions increased $495 thousand or 2% over 2007.  Net fees from mutual fund advisory 
and administrative services, which provided 20% of total trust fees and commissions decreased $729 thousand or 4%.  Employee 
benefit plan management fees, which provided 20% of total trust fees and commissions, increased $437 thousand.  Revenue from 
foundations was down $1.6 million or 25% from 2007.  Revenue from the management of oil and gas properties, which is more 
closely related to energy prices than the fair value of trust assets, increased $2.3 million compared with 2007.   

  21

 
 
 
 
 
 
 
 
 
 
 
 
 
Service charges on deposit accounts increased $8.3 million, or 8% compared with 2007.  Commercial account service charge 
revenue increased 23% to $36 million and overdraft fees increased 2% to $76 million.  The increase in commercial service 
charge revenue was due to a decrease in the earnings credit available to commercial deposit customers.  The earnings credit, 
which provides a non-cash method for commercial customers to avoid incurring charges for deposit services, decreases when 
interest rates fall.  Service charges on retail deposit accounts decreased 4% to $5.1 million due to continued migration to service-
charge free checking products.   

Mortgage banking revenue increased $4.8 million or 22% over 2007.  Servicing fee revenue totaled $18 million or 0.35% of 
loans serviced for others in 2008 and $17 million or 0.37% of loans serviced for others in 2007.  The average outstanding balance 
of loans serviced for others was $5.0 billion for 2008 and $4.6 billion for 2007.   Net secondary marketing gains totaled $9.5 
million for 2008 and $5.2 million for 2007.  Mortgage loans sold in the secondary market totaled $1.2 billion in 2008 and $1.0 
billion in 2007.   

Margin asset fees totaled $8.5 million for 2008 and $4.8 million for 2007.  Margin assets, which are held primarily as part of the 
Company’s customer derivatives programs averaged $422 million for 2008 and $117 million for 2007.  The increase in revenue 
earned on margin assets is offset by a decrease in net interest revenue due to the cost to fund margin assets. 

Securities and Derivatives 

Net gains and losses on securities included changes in the fair value of securities held as an economic hedge of our mortgage 
servicing rights, other-than-temporary impairment of variable-rate, perpetual preferred stocks and realized gains and losses on 
certain available for sale securities.  It also included gains realized from the sale of equity securities received from initial public 
stock offering by Visa, Inc. and Mastercard, Inc. 

Table 4 

Securities Gains (Losses), Net 
(In Thousands) 

Gains (losses) on available for sale securities 
Other-than-temporary impairment of preferred stocks 
Gains on Mastercard and Visa IPO securities 
Gains (losses) on mortgage hedging securities 

Total 

2008 

$ 

9,196 
(5,306) 
6,799 
10,948 
$   21,637 

Years ended December 31, 
2006 

2007 

2005 

$ 

(276) 
(8,641) 
1,075 
(486) 
$   (8,328) 

$ 

$  

152 
– 
– 
(1,102) 
(950) 

$ 

(1,700)   

– 
– 
(5,195) 
$   (6,895)   

2004 

$ 

1,772 
– 
– 
(4,860) 
$   (3,088) 

Net gains on derivatives totaled $1.3 million for 2008 and $2.3 million in 2007.  Net gains and losses on derivatives consist of 
fair value adjustments of all derivatives used to manage interest rate risk and the related hedged liabilities when adjustments are 
permitted by generally accepted accounting principles.  Derivative instruments generally consist of interest rate swaps where the 
Company pays a variable rate based on LIBOR and receives a fixed rate.  The fair value of these swaps generally decreases when 
interest rates fall.   

The Company adopted FAS 159 effective January 1, 2008.  FAS 159 provides an option to measure eligible financial assets and 
financial liabilities at fair value.  Certain certificates of deposit that were either currently designated as hedged or had previously 
been designated as hedged, but no longer met the correlation requirements of FAS 133 were designated as being reported at fair 
value when FAS 159 was first adopted.  In addition, certain certificates of deposit issued subsequent to the adoption of FAS 159 
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.  The fair value 
of these fixed-rate certificates of deposit generally increases when interest rates fall. 

Fourth Quarter 2008 Other Operating Revenue 

Other operating revenue for the fourth quarter of 2008 totaled $128 million, a $20 million or 19% increase over the fourth quarter 
of 2007.  Fees and commission revenue decreased $3.5 million or 3% compared with the fourth quarter of 2007.  Brokerage and 
trading revenue was up $3.1 million or 60% for the fourth quarter due to continued strong securities trading gains, partially offset 
by reduced investment banking transactions.  Transaction card revenue increased $1.7 million or 28% compared to the previous 
year due to ATM fees, merchant discount fees and debit card processing volumes.  Trust revenue decreased $3.0 million or 59% 
compared with the fourth quarter of 2007 due largely to a 16% decrease in the fair value of trust assets.  Deposit service charges 
and fees decreased $699 thousand or 9% due to a reduction in overdraft fees, partially offset by an increase in commercial 
account activity charges. 

Net securities gains for the fourth quarter of 2008 totaled $20 million, compared with net securities losses of $6.3 million for the 
fourth quarter of 2007. 

  22

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 5 

Securities Gains (Losses), Net 
(In Thousands) 

Gains on available for sale securities 
Other-than-temporary impairment of preferred stocks 
Gains on mortgage hedge securities 

Total 

2007 Other Operating Revenue 

Quarter ended December 31, 

2008 

$ 

5,067 
– 
15,089 
$   20,156 

2007 

$ 

1,102 
(8,641) 
1,288 
$   (6,251) 

Other operating revenue totaled $399 million for 2007, up $27 million over 2006.  Fees and commissions revenue increased $34 
million or 9%.  Transaction card revenue increased $12 million or 15% due to increases in check card revenue and ATM fees.  
Brokerage and trading revenue grew $9.1 million or 17% due to increased retail brokerage revenue and securities trading gains.  
Trust fees and commissions were up $7.2 million or 10% due to a 15% increase in the fair value of trust assets.  Deposit service 
charges increased $6.8 million or 7% due to a 9% increase in overdraft fees and a 6% increase in commercial account service 
charge revenue. 

Net securities losses totaled $8.3 million for 2007 and $950 thousand for 2006.  Other-than-temporary impairment charges of 
$8.6 million were recognized in 2007 on our holdings of variable-rate, perpetual preferred stocks. 

Other Operating Expense 

Other operating expense totaled $662 million for 2008, up $87 million over 2007.  Personnel expenses increased $24 million or 
7% over the previous year.  Expenses for our mortgage-banking activities, which included reduction in the fair value of our 
mortgage servicing rights and provision for credit losses on mortgage loans sold with recourse, increased $41 million.  All other 
operating expenses increased $22 million or 10%. 

Table 6  Other Operating Expense 
(In Thousands) 

Personnel expense 
Business promotion 
Contribution of stock to BOK Charitable Foundation 
Professional fees and services 
Net occupancy and equipment 
Insurance 
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 
Recovery for impairment of mortgage servicing rights 
Visa retrospective responsibility obligation 
Other expense 
Total 

2008 

$ 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 

Years ended December 31, 
2006 

2007 

2005 

$ 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 

$ 258,971 
17,964 
– 
16,596 
50,195 
2,436 
67,026 
15,066 

572 
6,943 
16,822 
– 
(3,915) 
– 
20,430 
$ 469,106 

2004 

$ 240,661 
15,618 
5,561 
15,487 
47,289 
2,496 
60,025 
14,034 

(4,016) 
8,138 
18,346 
– 
(1,567) 
– 
19,152 
$ 441,224 

  23

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Personnel Expense 

Personnel expense totaled $353 million for 2008 and $329 million for 2007.  Regular compensation, which consists of salaries 
and wages, overtime pay and temporary personnel costs, totaled $220 million, up $13 million or 6% over 2007.  The increase in 
regular compensation was primarily due to an increase in the average regular compensation per full time equivalent employee.  
Average staffing levels increased 1% compared with 2007. 

Table 7 
                   (In Thousands) 

 Personnel Expense 

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) 

2008 

2007 

2006 

2005 

2004 

Years Ended December 31, 

$  219,629 

$

206,857 

$

185,466 

$

165,529 

$ 

148,468 

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 

$

44,726 
5,097 
49,823 
43,619 
– 
258,971 

$

42,725 
11,694 
54,419 
37,774 
– 
240,661 

$ 

4,140 

4,106 

3,828 

3,677 

3,509 

Incentive compensation increased $12 million or 16% to $83 million.  Expense for cash-based incentive compensation plans 
increased $17 million or 26%.  These plans are primarily 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.  The increase in cash-
based incentive compensation over 2007 included a $13 million or 84% increase in sales commissions related to brokerage and 
trading revenue.   

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 $5.2 million compared with 2007.  This decrease 
reflected changes in the market value of BOK Financial common stock.  The year-end closing market price per share of BOK 
Financial common stock decreased $11.30 during 2008 and decreased $3.28 in 2007.  Compensation expense for equity awards 
increased $538 thousand or 8% compared with 2007.  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 totaled $50 million, a $2.2 million or 5% increase over 2007 due to growth in payroll taxes, employee 
insurance expense and training costs.  Employee insurance costs were up $242 thousand or 1%.  The Company self-insures a 
portion of its employee health care coverage and these costs may be volatile.  The Company expects an increase of approximately 
$2.0 million in pension expense for 2009 based on changes in the expected return on plan assets and discount rate.     

Mortgage Banking Costs 

Certain mortgage banking costs, including changes in the fair value of mortgage servicing rights and provision for losses on 
mortgage loans sold with recourse, totaled $57 million in 2008 and $16 million in 2007.  The fair value of mortgage servicing 
rights decreased $35 million in 2008 and $2.9 million in 2007.  Anticipated prepayment speeds increased significantly in the 
fourth quarter of 2008 in response to government programs to lower mortgage interest rates.  Although we maintain a portfolio of 
mortgage-backed securities as an economic hedge against changes in the fair value of our servicing rights, disconnection between 
current yields on these securities and current mortgage loan commitment rates limited the effectiveness of our hedge. 

We also maintain a reserve for losses on mortgage loans sold with recourse.  Provision for losses on these loans totaled $8.6 
million in 2008 and $1.1 million in 2007.  These loans are more fully discussed in the Loan Commitments section of this report. 

Other Operating Expenses 

All other operating expenses totaled $252 million for 2008, up $22 million or 10% over 2007.  Deposit insurance expense 
increased $9.0 million over the previous year due to the full implementation of assessment increases approved by the FDIC in 
2006.  The Company expects deposit insurance cost to increase further in 2009 as recently-announced increases in deposit 
insurance premiums and costs of the Temporary Liquidity Guarantee Program become effective. 

Professional fees increased $4.2 million or 19% due to legal and other loan collection costs.  Data processing and 
communications costs increased $5.3 million or 7% due to higher processing volumes.  Other operating expenses for 2008 were 
reduced by $5.5 million compared to the previous year from charges related to Visa, Inc. retrospective responsibility plan.  As a 

  24

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
member of Visa, we are obligated for a proportionate share of certain covered litigation costs incurred by Visa.  These costs are 
expected to be covered by an escrow account.  The Company accrued $2.8 million in 2007 for its estimated obligation for certain 
litigation covered by this plan.  This accrual was offset in March, 2008 when Visa funded a litigation escrow account from the 
proceeds of its initial public offering of common shares.  During 2008, the Company recognized an additional obligation for 
settled litigation under the retrospective responsibility plan and Visa contributed additional funds to the escrow account.  See 
Note 15 to the Consolidated Financial Statements for additional information about the Company’s contingent obligation under 
the Visa retrospective responsibility plan. 

Fourth Quarter 2008 Operating Expenses 

Other operating expense totaled $185 million for the fourth quarter of 2008, up $28 million over the fourth quarter of 2007.  
Excluding the previously discussed change in fair value of mortgage servicing rights, other operating expenses increased $4.6 
million or 3%.  Personnel expense increased $3.2 million and deposit insurance expense increased $2.4 million.  Professional fees 
increased $1.7 million due to legal fees and other loan collection costs.  Changes in accruals for the Company’s obligation under 
Visa, Inc. retrospective responsibility plan reduced other operating expenses by $4.5 million. 

2007 Operating Expenses 

Other operating expense for 2007 totaled $575 million, a $63 million or 12% increase over 2006.  This increase resulted 
primarily from a $32 million increase in personnel expense.   

Personnel expense growth was driven largely by total employment, average compensation per employee and incentive 
compensation expense.  Regular compensation expense totaled $207 million, up $21 million, or 12% increase over 2006.  
Incentive compensation increased $6.2 million, or 10% to $71 million.  Expense for cash-based incentive compensation plans 
increased $8.6 million or 16%.  Stock-based compensation expense decreased $2.3 million or 21%.  The Company’s stock-based 
compensation plans include both equity awards and liability awards.  Compensation expense associated with liability award plans 
decreased $2.9 million due to changes in the market value of BOK Financial common stock.  Compensation expense for equity 
awards increased $567 thousand or 9% over 2006.  Employee benefit expenses increased $2.3 million or 5% to $48 million.  

Professional fees increased $5.1 million or 28% to $23 million compared with 2006.  Growth in other professional fees includes 
costs related to acquisitions and subordinated debt issued during 2007, costs related to the Securities and Exchange 
Commission’s examination of our mutual fund advisory activities discussed in Note 15 to the Consolidated Financial Statements, 
and professional fees related to debt collection activities.  

Other expenses in 2007 included a $2.8 million charge for our contingent obligation to support Visa’s antitrust litigation costs 
and a $695 thousand increase in FDIC insurance premiums.   

Income Taxes 

Income tax expense was $65 million for 2008, $116 million for 2007 and $115 million for 2006.  This represented 30%, 35% and 
35%, respectively, of book taxable income.  Tax expense currently payable totaled $116 million in 2008, $129 million in 2007 
and $122 million in 2006.  

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 2007 during 2008.  In addition, the Company recognized the 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 33% of book taxable income excluding these items.      

Net deferred tax assets totaled $219 million at December 31, 2008 and $53 million at December 31, 2007.  The increase was due 
primarily to the tax effect of unrealized losses on available for sale securities and provision for credit losses in excess of net loans 
charged off.  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.   

Reserves for uncertain tax positions totaled $13 million at December 31, 2008 and December 31, 2007.  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 taxes expense for the fourth quarter of 2008 totaled $10 million or 23% of book taxable income.  Excluding the 
previously mentioned tax benefit from the contribution of appreciated securities and quarterly adjustments to the annual effective 
tax rate, income tax expense for the fourth quarter would have been $15 million or 33% of book taxable income. 

  25

 
 
 
 
 
 
 
 
 
 
 
 
 
Table 8 

Selected Quarterly Financial Data 
(In Thousands Except Per Share Data) 

Fourth 

Third 

Second 

First 

2008 

Interest revenue               
Interest expense                      
Net interest revenue                      
Provision for credit losses                     
Net interest revenue after provision for credit losses                  
Other operating revenue                                
Gain (loss) on securities, net                         
Gain (loss) on derivatives, net                           
Other operating expense                                  
Change in fair value of mortgage servicing rights                                            
Income (loss) before taxes                              
Income tax expense                            
Net income (loss)                               

  $ 262,160 
85,713 
176,447 
73,001 
103,446 
109,865 
20,156 
(2,219) 
159,010 
26,432 
45,806 
10,363 
  $  35,443 

  $  263,358 
99,010 
164,348 
52,711 
111,637 
125,827 
2,103 
4,366 
158,736 
5,554 
79,643 
22,958 
  $  56,685 

  $ 260,086 
101,147 
158,939 
59,310 
99,629 
63,819 
(5,242) 
(2,961) 
158,501 
767 
(4,023) 
(2,862) 
(1,161) 

  $ 

  $ 276,041 
128,913 
147,128 
17,571 
129,557 
113,829 
4,620 
2,113 
151,642 
1,762 
96,715 
34,450 
  $  62,265 

Earnings (loss) per share: 

Basic 
Diluted 

Average shares: 

Basic 
Diluted 

  $ 
  $ 

0.53 
0.53 

  $ 
  $ 

0.84 
0.84 

  $ 
  $ 

(0.02) 
(0.02) 

  $ 
  $ 

0.93 
0.92 

67,294 
67,490 

67,263 
67,471 

67,452 
67,452 

67,202 
67,550 

2007 

Interest revenue               
Interest expense                      
Net interest revenue                      
Provision for credit losses                     
Net interest revenue after provision for credit losses                  
Other operating revenue                                
Gain (loss) on securities, net                         
Gain (loss) on derivatives, net                           
Other operating expense                                  
Change in fair value of mortgage servicing rights                                            
Income before taxes                              
Income tax expense                            
Net income                                

  $ 297,096 
155,807 
141,289 
13,200 
128,089 
112,038 
(6,251) 
1,529 
154,383 
3,344 
77,678 
26,518 
  $  51,160 

  $  300,380 
160,935 
139,445 
7,201 
132,244 
103,759 
4,748 
865 
147,572 
3,446 
90,598 
30,750 
  $  59,848 

  $ 288,685 
153,772 
134,913 
7,820 
127,093 
96,616 
(6,262) 
(183) 
139,192 
(5,061) 
83,133 
29,270 
  $  53,863 

  $ 274,576 
145,738 
128,838 
6,500 
122,338 
92,281 
(563) 
71 
130,947 
1,164 
82,016 
29,223 
  $  52,793 

Earnings per share: 

Basic 
Diluted 

Average shares: 

Basic 
Diluted 

  $ 
  $ 

0.76 
0.76 

  $ 
  $ 

0.89 
0.89 

  $ 
  $ 

0.80 
0.80 

  $ 
  $ 

0.79 
0.78 

67,051 
67,483 

67,078 
67,538 

67,117 
67,606 

67,085 
67,575 

  26

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Lines of Business 

BOK Financial operates three principal lines of business: commercial banking, consumer banking and wealth management.  Our 
principal lines of business have been re-defined from the previous year to better present the Company’s organization as it has 
grown in markets outside of Oklahoma.  Line of business information for 2007 and 2006 has been revised for consistent 
presentation.  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 financial 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, the provision for credit losses in excess of net loans 
charged off, tax planning strategies and certain executive compensation costs that are not attributed to the lines of business.  

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

As shown in Table 9, net income attributed to our lines of business decreased $98 million or 42% from last year.  The decrease 
was due primarily to credit losses attributed to the business units.  In addition, falling interest rates decreased the transfer pricing 
credit provided to business units that generate lower-costing funds for the Company. 

Table 9  Net Income by Line of Business 

(In Thousands) 

Years ended December 31, 
2007 

2006 

2008 

Commercial banking 
Consumer banking 
Wealth management 
Subtotal 

Funds management and other 

Total 

$  79,490 
25,749 
29,737 
134,976 
18,256 
$ 153,232 

$ 150,537 
57,252 
25,621 
233,410 
(15,746) 
$ 217,664 

$ 138,540 
61,731 
27,599 
227,870 
(14,893) 
$ 212,977 

  27

 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
Commercial Banking 

Commercial banking contributed $79 million to consolidated net income in 2008, down from $151 million in 2007.  The decrease 
in commercial banking net income was largely due to a $72 million increase in net loans charged-off and $41 million of net credit 
losses on a customer’s derivatives position.  These charges combined to reduce commercial banking net income by $69 million in 
2008.   

Net interest revenue decreased $8.4 million or 3% compared with 2007.  The decline was primarily driven by two factors.  
Falling short-term interest rates decreased the internal transfer pricing credit provided to the commercial banking division for 
deposits sold to our funds management unit by approximately $21 million.  The funding charge for average non-interest earning 
derivative assets increased approximately $12 million as those balances grew due to commodity price volatility.  This reduction 
was largely offset by an increase in average outstanding balance of commercial loans.  Other operating revenue excluding the 
previously noted credit losses on derivative contracts, increased  $17 million or 13%, including a $6.3 million increase in deposit 
account service charges and a $4.9 million increase in TransFund revenue.  Operating expenses were up $15 million or 8% due to 
higher personnel expenses, data processing costs and professional fees to collect problem assets.      

Net commercial banking loans charged off in 2008 totaled $82 million or 0.85% of average loans attributed to this line of 
business.  Commercial and industrial loans charged off totaled $35 million or 1.47% of average commercial and industrial loans.  
Commercial real estate loans charged off totaled $18 million or 0.84% of average commercial real estate loans and small business 
banking loans charged off totaled $11 million or 0.48% of average small business loans.  Net loans charged off in 2008 also 
included a $26 million energy loan.  The commercial banking division recognized an $11 million recovery of two loans charged 
off in 2001 and 2005. 

The average outstanding balance of loans attributed to commercial banking was $9.7 billion for 2008.  Average commercial 
banking division loans increased $903 million or 10% over 2007.  Commercial and industrial loans averaged $2.3 billion for 
2008, a $277 million or 13% increase over 2007.  Small business loans averaged $2.2 billion for 2008, up $279 million or 14% 
over the previous year.  Energy loans averaged $1.8 billion, an increase of $173 million or 11% and commercial real estate loans 
averaged $2.2 billion, up $54 million or 3% over 2007.   

Average deposits attributed to commercial banking were $4.6 billion for 2008, up $413 million or 10% over 2007.  Treasury 
services account balances increased $260 million or 24% and deposit balances attributed to our energy customers increased $92 
million or 27%.  High energy prices during 2008 provided liquidity to many of our energy-producing customers.    

Table 10   Commercial Banking 

(Dollars in Thousands) 

NIR (expense) from external sources 
NIR (expense) from internal sources 

  $ 

Years ended December 31, 
2007 
526,225 
(200,390) 

  $ 

  $ 

2008 
451,623 
(134,196) 

2006 
456,497 
(162,537) 

Total net interest revenue 

317,427 

325,835 

293,960 

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

107,185 
217,155 
81,966 
4,689 
(82) 
130,098 
50,608 

131,081 
201,876 
9,747 
1,075 
10 
246,378 
95,841 

119,891 
184,385 
2,988 
10 
255 
226,743 
88,203 

Net income 

  $ 

   79,490 

  $ 

150,537 

  $ 

138,540 

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

  $ 12,920,566 
9,698,214 
4,559,653 
1,036,980 
0.62% 
7.67 
51.14 
0.85 

  $  11,274,301 
8,795,426 
4,146,378 
1,059,730 
1.34% 

  $  9,993,775 
7,569,827 
3,680,944 
997,210 
1.39% 

14.21 
44.18 
0.11 

13.89 
44.55 
0.04 

  28

 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
   
 
 
   
   
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consumer Banking 

Consumer banking services are provided through four primary distribution channels:  traditional branches, supermarket branches, 
the 24-hour ExpressBank call center and On-line internet banking.  We currently have 195 consumer banking locations, including 
branch banking locations and mortgage lending offices.  Our consumer banking locations are primarily distributed 84 in 
Oklahoma, 47 in Texas, 21 in New Mexico and 16 in Colorado.  The Consumer Banking division plans to open five locations in 
2009, two in Phoenix, Arizona and one each in Albuquerque, New Mexico, Allen, Texas and Kansas City, Missouri. 

Consumer banking contributed $26 million to consolidated net income in 2008, down from $57 million in 2007.  The decrease in 
consumer banking net income was largely due to a decrease in net interest revenue and a decrease in the fair value of mortgage 
servicing rights, net of economic hedges.  In addition, net loans charged off increased $7.5 million due primarily to losses on 
indirect automobile loans. 

Net interest revenue from consumer banking activities decreased $4.4 million or 3% from 2007.  Falling short-term interest rates 
decreased the internal transfer pricing credit provided to the consumer banking division for deposits sold to our funds 
management unit by $22 million.  Other operating revenue increased $4.3 million or 3% over 2007.  Deposit service charges 
were up $2.3 million or 3%.  Operating expenses increased $25 million or 13% over 2007.  Personnel expense increased $7.3 
million or 12% due primarily to acquisition of branch locations in Colorado and Texas in mid-year 2007.  Deposit insurance 
expense was up $2.3 million and charges for mortgage loan foreclosure losses increased $7.5 million. 

The decrease in fair value of our mortgage loan servicing rights, net of economic hedging, reduced consumer banking net income 
by $14 million in 2008 and $2.1 million in 2007.  Anticipated prepayment speeds increased significantly in the fourth quarter of 
2008 in response to government programs to lower mortgage interest rates.  Although we maintain a portfolio of mortgage-
backed securities as an economic hedge against changes in the fair value of our servicing rights, disconnection between current 
yields on these securities and current mortgage loan commitment rates limited the effectiveness of our hedge. 

The interest rate sensitivity of our mortgage servicing rights and securities held as an economic hedge is modeled over a range of 
+/- 50 basis points.  At December 31, 2008, a 50 basis point increase in mortgage interest rates is expected to increase the fair 
value of our mortgage servicing rights, net of economic hedging by $1.9 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 hedging by $4.4 million.  Modeling 
changes in the value of our servicing rights due to changes in interest rates assumes stable relationships between mortgage 
commitment rates and discount rates and assumed prepayment speeds and actual prepayment speeds.  Changes in market 
conditions can cause variations from these assumptions.  These factors and others may cause changes in the value of our 
mortgage servicing rights to differ from our expectations. 

Average consumer deposits increased $236 million or 4% over 2007.  Interest-bearing transaction accounts were up $302 million 
or 17% and time deposits were down $161 million or 6%.  Average demand deposit accounts increased $73 million or 12%.  
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 markets.  During 2008, we funded $1.0 billion of mortgage loans, compared with $920 million in 2007.  Approximately 
56% of our mortgage loans funded was in the Oklahoma market and 18% of mortgage loans funded was in the Texas market.  
We also service $6.0 billion of mortgage loans, including $793 million of loans serviced for affiliated entities.  Approximately 
93% of the mortgage loans serviced was to borrowers in our primary market areas.    

  29

 
 
 
 
 
 
 
 
Table 11   Consumer Banking 

(Dollars in Thousands) 

NIR (expense) from external sources 
NIR (expense) from internal sources 

  $ 

Years ended December 31, 
2007 

  $ 

(7,807)    $ 

163,028 

2008 
32,076 
118,728 

2006 
(5,015) 
151,532 

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 on repossessed assets, net 
Income before taxes 
Federal and state income tax 

150,804 

148,885 
219,024 
16,726 

(34,515) 
12,525 
193 
42,142 
16,393 

155,221 

146,517 

144,585 
193,599 
9,233 

(2,893)   
(486)   
107 
93,702 
36,450 

134,261 
176,649 
5,075 

3,009 
(1,102) 
72 
101,033 
39,302 

Net income 

  $ 

25,749 

  $ 

57,252 

  $ 

61,731 

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 portfolio 
Mortgage loan fundings 

Wealth Management 

  $  7,974,694 
2,511,634 
5,678,166 
216,810 

0.32% 
11.88 
73.08 
0.67 
195 
  $  5,983,824  
1,018,246 

  $ 

7,514,732 
2,274,013 
5,442,666 
194,130 

  $  6,966,156 
2,044,930 
5,123,224 
192,310 

0.76% 
29.49 
64.57 
0.41 
189 
  $    5,481,736 
919,823 

0.89% 

32.10 
62.91 
0.25 
163 
  $  4,988,611 
766,458 

The Wealth Management division contributed $30 million of net income in 2008, up $4.1 million or 16% over 2007.  Net interest 
revenue decreased $719 thousand or 2%.  Lower internal funds transfer credit provided for deposits sold to the funds 
management unit decreased net interest revenue by $11 million.  Other operating revenue increased $25 million or 19% over 
2007.  Brokerage and trading revenue was up $26 million, more than double 2007, due primarily to securities trading revenue.  
Growth in trust fees and commissions was limited to $748 thousand or 1% due primarily to a decrease in the fair value of trust 
assets. 

Operating expenses increased $19 million or 14% over 2007.  Personnel expense was up $14 million or 17%, including a $13 
million increase in sales commissions associated with securities trading.  Non-personnel operating expenses increased $5.1 
million or 11% compared with 2007 due to data processing and deposit insurance costs.   

The Wealth Management division provided $2.1 billion of average deposits in 2008 compared with $1.7 billion of average 
deposits in 2007.  Interest-bearing transaction accounts averaged $1.5 billion for 2008, an increase of $305 million or 26% over 
2007.  Average time deposits were $389 million, up $102 million or 35% over last year.  Deposit growth for the Wealth 
Management division was due largely to movement of customer funds from managed money market products into deposits. 

At December 31, 2008 and 2007, Wealth Management was responsible for trust assets with aggregate fair values of $30.5 billion 
and $36.3 billion, respectively, under various fiduciary arrangements.  The decrease in fair value of trust assets was due primarily 
to general market conditions.  We have sole or joint discretionary authority over $11.5 billion of trust assets at December 31, 
2008 compared to $13.8 billion at December 31, 2007.  The fair value of non-managed assets totaled $11.3 billion at December 
31, 2008, down from $13.1 billion at the previous year end.  The fair value of assets held in safekeeping totaled $7.7 billion at 
December 31, 2008 and $9.4 billion at December 31, 2007.   

  30

 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
   
   
 
 
   
   
 
 
 
 
 
 
 
 
 
 
   
   
   
 
 
 
 
 
 
 
Table 12   Wealth Management 

(Dollars in Thousands) 

NIR (expense) from external sources 
NIR (expense) from internal sources 

  $ 

Years ended December 31, 
2007 

  $ 

8,562 
37,627 

  $ 

2008 
12,617 
32,853 

2006 
16,731 
29,180 

Total net interest revenue 

45,470 

46,189 

45,911 

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

156,133 
149,966 
2,961 
– 
(7) 
48,669 
18,932 

130,681 
131,205 
1,513 
2,232 
13 
41,933 
16,312 

114,044 
114,548 
242 
– 
5 
45,170 
17,571 

Net income 

  $ 

   29,737 

  $ 

25,621 

  $ 

27,599 

Average assets 
Average loans 
Average deposits 
Average invested capital   
Return on assets 
Return on invested capital 
Efficiency ratio 
Trust assets 

  $  2,505,168 
933,139 
2,100,237 
191,830 
1.19% 

15.50 
74.39 

  $ 

2,020,472 
910,568 
1,653,606 
182,370 
1.27% 

14.05 
74.18 

  $  1,710,193 
858,267 
1,415,860 
163,340 
1.61% 

16.90 
71.61 

  $ 30,454,512 

  $  36,288,592 

  $ 31,704,091 

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 includes 
insignificant results of operations in locations outside our primary geographic regions. 

Table 13  Net Income by Geographic Region 

(In Thousands) 

Years ended December 31, 
2007 

2006 

2008 

Oklahoma 
Texas 
New Mexico 
Arkansas 
Colorado 
Arizona 
Kansas City 
Subtotal 

Funds management and other 

Total 

Oklahoma Market 

$  69,957 
42,420 
14,449 
9,389 
7,618 
(8,083) 
539 
136,289 
16,943 
$ 153,232 

$ 141,817 
53,772 
18,474 
4,774 
13,784 
4,092 
(380) 
236,333 
(18,669) 
$ 217,664 

$ 145,176 
48,595 
17,326 
3,851 
12,361 
3,743 
(622) 
230,430 
(17,453) 
$ 212,977 

Oklahoma remains our predominate market.  Our Oklahoma offices are located primarily in the Tulsa and Oklahoma City 
metropolitan areas.  Approximately 51% of our average loans, 50% of our average deposits and 46% of our consolidated net 
income is attributed to the Oklahoma market.  In addition, all of our mortgage servicing activity and 77% of our trust assets are 
attributed to the Oklahoma market. 

Net income generated in the Oklahoma market in 2008 totaled $70 million, down $72 million from the previous year due 
primarily to credit losses and a decrease in the fair value or mortgage servicing rights, net of economic hedges.  Credit losses in 
the Oklahoma market included a $26 million loan charge off and a $41 million loss on derivative contracts with SemGroup, L.P.  
The Oklahoma market also recognized $11 million of recoveries of two loans charged-off in previous years and a $6.8 million 
gain from the partial redemption of shares received from the Visa, Inc. initial public offering. 

  31

 
  
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
Net interest revenue decreased $17 million or 6% from 2007 due to the lower internal funds transfer credit provided for deposits 
sold to the funds management unit.  This was partially offset by the benefit of a $67 million or 1% increase in average loans in 
the Oklahoma market.   

Other operating revenue, excluding the $41 million loss on derivative contracts increased $27 million or 9% due primarily to 
transaction card revenue, mortgage banking revenue and deposit account service charges.  Operating expense increased $38 
million or 12% due primarily to higher personnel costs and deposit insurance expense.   

Net loans charged-off totaled $45 million or 0.70% of average loans in 2008 and $11 million or 0.18% of average loans in 2007.  
Net loans charged-off in 2008, excluding the SemGroup charge-offs and two recoveries that are not expected to recur, totaled $30 
million or 0.47% of average loans.     

Table 14 Oklahoma 

(Dollars in Thousands) 

Net interest revenue 

  $ 

Years ended December 31, 
2007 
260,649 

  $ 

  $ 

2008 
244,090 

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 on repossessed assets, net 
Income before taxes 
Federal and state income tax 

280,314 
348,345 
44,783 

(34,515) 
17,207 
527 
114,495 
44,538 

294,565 
309,836 
11,145 

(2,893)   
602 
164 
232,106 
90,289 

2006 
251,374 

274,811 
289,766 
929 

3,009 
(1,088) 
193 
237,604 
92,428 

Net income 

  $ 

69,957 

  $ 

141,817 

  $ 

145,176 

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

  $  13,047,213 
6,409,208 
6,780,539 
780,400 
0.54% 
8.96 
66.43 
0.70 

  $  11,652,430 
6,329,310 
5,999,478 
818,360 
1.22% 

  $ 10,947,303 
6,057,379 
5,507,046 
838,690 
1.33% 

17.33 
55.80 
0.18 

17.31 
55.07 
0.02 

Texas Market 

Texas is our second largest market.  Our Texas offices are located primarily in Dallas, Fort Worth and Houston metropolitan 
areas.  Approximately 29% of our average loans, 24% of our average deposits and 28% of our consolidated net income is 
attributed to the Texas market.   

Net interest revenue increased $2.5 million or 2% over 2007.  Average outstanding loans increased $587 million or 19% over 
2007.  The benefit of an increase in average loans was largely offset by the reduced benefit from funds sold to the funds 
management unit.   

Other operating revenue increased 3% and operating expenses increased 7% over last year.  Growth in operating expenses 
included a full-year’s costs of Worth National Bank, which was acquired in May, 2007, and higher deposit insurance costs. 

Net loans charged-off totaled $17 million or 0.46% of average loans in 2008 and $2.4 million or 0.08% of average loans in 2007. 

  32

 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
   
   
 
 
   
   
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 15   Texas 

(Dollars in Thousands) 

Net interest revenue 

  $ 

Years ended December 31, 
2007 
151,157 

  $ 

  $ 

2008 
153,703 

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

45,348 
116,345 
16,544 
119 
66,281 
23,861 

44,177 
108,831 
2,438 

(47)   

84,018 
30,246 

2006 
138,264 

38,812 
96,210 
5,081 
145 
75,930 
27,335 

Net income 

  $ 

42,420 

  $ 

53,772 

  $ 

48,595 

Average assets 
Average loans 
Average deposits 
Average invested capital   

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

  $  5,263,108 
3,635,216 
3,222,986 
463,360 

  $  4,544,447 
3,046,091 
2,959,111 
471,910 

  $ 

0.81% 
9.15 
58.45 
0.46 

1.18% 
11.39 
55.72 
0.08 

4,146,532 
2,559,918 
2,803,801 
435,010 

1.17% 
11.17 
54.33 
0.20 

Other Markets 

Net income attributed to our New Mexico market totaled $14 million or 9% of consolidated net income for 2008, down from $18 
million in 2007.  The decrease in net income attributed to New Mexico resulted from lower net interest revenue due to the lower 
internal funds transfer credit provided for deposits sold to the funds management unit.   

Net income in the Arkansas market increased to $9.4 million in 2008 from $4.8 million in 2007 due primarily to growth in 
securities trading revenue at our Little Rock office.  This was partially offset by a $2.0 million increase in net loans charged-off, 
primarily indirect automobile loans. 

Net income attributed to the Colorado market totaled $7.6 million in 2008, down from $14 million in 2007.  Net loans charged-
off totaled $8.1 million or 0.95% of average loans in 2008 and $276 thousand or 0.04% of average loans in 2007.   

We incurred a net loss of $8.1 million in the Arizona market in 2008 compared with net income of $4.1 million in 2007.  The loss 
was largely due to an increase in net loans charged-off and an increase in operating expenses.  Net loans charged-off totaled $18 
million or 3.06% of average loans in 2008 and $1.6 million or 0.30% of average loans in 2007.  Most of the net loans charged-off 
were land and residential development loans originated in the Tucson market.  The increase in operating expenses are primarily 
related to personnel costs incurred to build our commercial banking presence in the Phoenix market.  

  33

 
  
 
 
 
 
   
   
 
   
   
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 16 New Mexico 

(Dollars in Thousands) 

Net interest revenue 

  $ 

Years ended December 31, 
2007 

  $ 

45,083 

  $ 

2008 
39,242 

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

23,788 
35,662 
3,715 
(6) 
23,647 
9,198 

24,127 
35,329 
3,645 
– 
30,236 
11,762 

2006 
41,999 

21,317 
32,869 
2,117 
27 
28,357 
11,031 

Net income 

  $ 

   14,449 

  $ 

18,474 

  $ 

17,326 

Average assets 
Average loans 
Average deposits 
Average invested capital   

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

  $  1,736,872 
828,084 
1,036,209 
114,150 

  $ 

1,784,928 
802,916 
1,082,883 
118,320 

  $  1,666,863 
687,281 
1,011,161 
107,160 

0.83% 

12.66 
56.58 
0.45 

1.03% 
15.61 
51.05 
0.45 

1.04% 

16.17 
51.91 
0.31 

Table 17 Arkansas 

(Dollars in Thousands) 

Net interest revenue 

  $ 

Years ended December 31, 
2007 

2006 

  $ 

10,075 

  $ 

7,667 

2008 
11,784 

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

29,104 
22,027 
3,253 
242 
15,366 
5,977 

17,213 
18,237 
1,238 
– 
7,813 
3,039 

16,523 
17,645 
205 
38 
6,302 
2,451 

Net income 

  $ 

   9,389 

  $ 

4,774 

  $ 

3,851 

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

  $ 

  $ 

475,794 
434,096 
73,605 
30,290 
1.97% 

31.00 
53.87 
0.75 

  $ 

393,575 
357,286 
68,659 
27,190 
1.21% 
17.56 
66.83 
0.35 

281,896 
241,124 
69,891 
22,680 
1.37% 

16.98 
72.94 
0.09 

  34

 
  
 
 
 
 
 
 
   
   
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
   
   
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 18 Colorado 

(Dollars in Thousands) 

Net interest revenue 

  $ 

Years ended December 31, 
2007 

  $ 

36,544 

  $ 

2008 
37,009 

Other operating revenue 
Operating expense 
Net loans charged off (recovered) 
Income before taxes 
Federal and state income tax 

16,600 
32,997 
8,145 
12,467 
4,849 

16,276 
29,985 
276 
22,559 
8,775 

2006 
30,777 

12,633 
23,214 
(35) 
20,231 
7,870 

Net income 

  $ 

   7,618 

  $ 

13,784 

  $ 

12,361 

Average assets 
Average loans 
Average deposits 
Average invested capital   

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

  $  1,850,419 
861,337 
1,058,816 
126,170 

  $ 

1,687,312 
738,581 
992,844 
115,170 

  $  1,192,158 
528,289 
713,372 
96,360 

0.41% 
6.04 
61.55 
0.95 

0.82% 
11.97 
56.77 
0.04 

1.04% 

12.83 
53.48 
(0.01) 

Table 19 Arizona 

(Dollars in Thousands) 

Net interest revenue 

  $ 

Years ended December 31, 
2007 

  $ 

19,292 

  $ 

2008 
18,608 

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

1,300 
14,741 
18,109 
287 
(13,229) 
(5,146) 

2,294 
13,301 
1,588 
– 
6,697 
2,605 

2006 
14,687 

1,092 
9,644 
9 
– 
6,126 
2,383 

Net income (loss) 

  $ 

   (8,083) 

  $ 

4,092 

  $ 

3,743 

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

  $ 

  $ 

627,784 
592,067 
126,313 
61,780 
(1.29)% 

(13.08) 
74.05 
3.06 

  $ 

553,315 
519,359 
122,617 
30,040 
0.74% 
13.62 
61.62 
0.31 

349,171 
314,581 
113,789 
6,970 
1.07% 

53.70 
61.12 
– 

  35

 
  
 
 
 
 
   
   
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
   
   
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 20 Kansas City 

(Dollars in Thousands) 

Years ended December 31, 
2007 

2006 

2008 

Net interest revenue 

  $ 

7,692 

  $ 

4,151 

  $ 

1,637 

Other operating revenue 
Operating expense 
Net loans charged off 
Income (loss) before taxes 
Federal and state income tax (benefit) 

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 

  $ 

  $ 

13,456 
13,164 
7,102 
882 
343 

6,533 
11,144 
162 
(622)   
(242)   

2,118 
4,772 
– 
(1,017) 
(395) 

539 

  $ 

(380)    $ 

(622) 

  $ 

354,703 
338,860 
37,964 
23,970 

0.15% 
2.25 
62.25 
2.10 

  $ 

184,693 
178,169 
16,936 
13,790 

(0.21)% 
(2.76) 
104.31 
0.09 

85,718 
84,453 
968 
2,310 

(0.73)% 
(26.93)% 
127.08 
– 

Assessment of Financial Condition 

Securities 

BOK Financial maintains a securities portfolio to support its interest rate risk management strategies, enhance profitability, 
provide liquidity and comply with regulatory requirements.  Securities are classified as held for investment, available for sale or 
trading. 

Table 21   Securities 

(Dollars in Thousands) 

Investment: 

U.S. Treasury 
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 
Other 

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: 

2008 

December 31, 
2007 

2006 

Amortized 
Cost 

Fair 
Value 

Amortized 
Cost 

Fair 
Value 

Amortized 
Cost 

Fair 
Value 

  $ 

– 
235,791 
6,553 
  $  242,344 

  $ 

– 
239,178 
6,591 
  $  245,769 

  $ 

– 
242,274 
5,675 
  $  247,949 

  $ 

– 
243,061 
5,727 
  $  248,788 

  $ 

1,999 
240,976 
5,714 
  $  248,689 

  $ 

1,995 
238,869 
5,744 
  $  246,608 

  $ 

6,987 
19,537 

  $ 

7,126 
20,163 

  $ 

6,961 
26,478 

  $ 

7,088 
26,578 

  $ 

6,014 
77,860 

  $ 

5,983 
78,614 

4,900,895 
1,636,934 
6,537,829 
37 
32,380 
61,760 
32,472 
31,421 
  $ 6,722,423 

4,972,928 
1,241,238 
6,214,166 
36 
32,380 
61,760 
21,701 
34,119 
  $  6,391,451 

3,838,219 
1,664,537 
5,502,756 
42 
31,299 
57,265 
32,778 
30,347 
  $ 5,687,926 

3,817,939 
1,641,189 
5,459,128 
41 
31,299 
57,265 
32,778 
36,363 
  $  5,650,540 

3,204,592 
1,361,373 
4,565,965 
46 
23,609 
50,897 
– 
27,454 
  $ 4,751,845 

3,128,138 
1,333,533 
4,461,671 
45 
23,609 
50,897 
– 
34,242 
  $  4,655,061 

Mortgage-backed U.S. agency securities 

  $  386,571 

  $  399,211 

  $  153,920 

  $  154,701 

  $  163,094 

  $  162,837 

  36

 
  
 
 
 
 
   
   
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Investment securities, which consist primarily of Oklahoma municipal bonds, are carried at cost and adjusted for amortization of 
premiums or accretion of discounts.  At December 31, 2008, investment securities were carried at $242 million and had a fair 
value of $246 million.  Management has the ability and intent to hold these securities until they mature.   

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 $6.7 billion at December 31, 2008, up $1.0 billion compared with December 31, 2007.  
Mortgage-backed securities represented 97% of total available for sale securities.  The Company holds no debt securities of 
corporate issuers.   

A primary risk of holding 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.  The expected duration of the mortgage-backed securities portfolio was 
approximately 2.4 years at December 31, 2008.  Management estimates that the expected duration would extend to approximately 
2.6 years assuming a 300 basis point immediate rate shock.  The effect of falling interest rates from current low levels is not 
expected to be significant. 

Mortgage-backed securities also have credit risk from delinquency or default of the underlying loans.  The Company mitigates 
this risk by primarily investing in securities issued by U.S. government agencies.  Principal and interest payments on the 
underlying loans are fully guaranteed.  At December 31, 2008, approximately $4.9 billion of the amortized cost of the 
Company’s mortgage-backed securities were issued by U.S. government agencies.  The fair value of these mortgage-backed 
securities totaled $5.0 billion at December 31, 2008.   

The Company also holds approximately $1.6 billion, based on amortized cost, of mortgage-backed securities privately issued by 
publicly-owned financial institutions.  The fair value of our portfolio of privately issued mortgage-backed securities totaled $1.2 
billion at December 31, 2008. 

Credit risk on mortgage-backed securities originated by these issuers 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 $390 million of the privately issued mortgage-backed securities consisted of Alt-
A mortgage loans.  Approximately 82% of these securities, including all Alt-A mortgage-backed securities originated in 2007 
and 2006, are credit enhanced with additional collateral support.  Approximately 86% of our Alt-A mortgage-backed securities 
represented pools of fixed-rate mortgage loans.  None of the adjustable rate mortgages are payment option ARMs. 

The aggregate gross amount of unrealized losses on available for sale securities at December 31, 2008 totaled $418 million.  
Management evaluated the securities with unrealized losses to determine if we believe that the losses were temporary.  This 
evaluation considered factors such as causes of the unrealized losses, support for debt securities provided by government 
guarantees or credit enhancements, ratings of the respective issuers and other factors to assess the prospects for recovery over 
various interest rate scenarios and time periods.  We also considered our intent and ability to either hold or sell the securities.   It 
is our belief, based on currently available information and our evaluation, that the unrealized losses in these securities were 
temporary.    

Approximately $252 million of our portfolio of mortgage-backed securities are rated below investment grade by at least one of 
the nationally-recognized rating agencies.  The aggregate unrealized loss on these securities totaled $92 million.   We use an 
adjusted loan to value ratio as part of our evaluation of whether the unrealized losses on these securities are temporary or other-
than-temporary.  Consideration is given to other-than-temporary impairment if the adjusted loan to value ratio of a specific 
security exceeds 85%.  We expect the number of below investment grade securities to increase as the rating agencies continue 
their evaluations in a worsening economy.  A distribution of the amortized cost, fair value and unrealized loss by adjusted loan to 
value ratio is presented in Table 22. 

Table 22  Below Investment Grade Securities at December 31, 2008 

(In Thousands) 

Adjusted LTV Ratio  Amortized Cost 

Fair Value 

< 70 % 
70 < 75 
75 < 80 
80 < 85 
Total 

  $ 

89,244 
66,862 
83,298 
12,702 
 $  252,106 

  $ 

62,886 
43,522 
46,785 
6,985 
 $  160,178 

Our portfolio of available for sale securities also included preferred stocks issued by seven financial institutions.  These stocks 
were originally purchased for $46 million and have a current carrying value of $32 million.  Our carrying value of these stocks 
has been reduced by $14 million of other-than-temporary impairment charges.  None of the institutions that issued these stocks 
were in default.  These preferred stocks have certain debt-like features such as a quarterly dividend based on LIBOR.  However, 

  37

 
 
 
 
 
    
 
 
 
 
 
 
 
 
 
the issuers of these stocks have no obligation to redeem them.  The aggregate fair value of these preferred stocks decreased to 
$22 million at December 31, 2008 due to a significant widening of spreads to LIBOR related to current market disruptions.  
Management believes that the fair value of these securities will recover to our carrying value as spreads to LIBOR return to a 
range of 400 basis points to 500 basis points.      

Certain 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.  The Company also maintains a separate trading portfolio.  Trading portfolio securities, which are also carried at fair value 
with changes in fair value recognized in current period income, are acquired and held with the intent to sell at a profit to the 
Company. 

Bank-Owned Life Insurance 

The Company has approximately $237 million invested in bank-owned life insurance at December 31, 2008.  These investments 
are expected to provide a long-term source of earnings to support existing employee benefit programs.  Approximately $204 
million is held in separate accounts.  The Company’s separate account holdings are invested in diversified portfolios of 
investment-grade fixed income securities and cash equivalents, including U.S. Treasury and Agency securities, mortgage-backed 
securities, corporate debt, asset-backed and CMBS 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, 
2008, cash surrender value represented by the underlying fair value of investments held in separate accounts was approximately 
$199 million and cash surrender value represented by the value of the stable value wrap was approximately $4.6 million.  The 
stable value wrap was provided by a highly-rated, domestic financial institution.  The remaining cash surrender value of $33 
million primarily represented the cash surrender value of policies held in the general accounts and amounts due from various 
insurance companies. 

Loans 

The aggregate loan portfolio before allowance for loan losses totaled $12.9 billion at December 31, 2008, a $935 million or 8% 
increase since December 31, 2008.  Commercial loans, residential mortgage loans and consumer loans increased during the year.  
Commercial real estate loans decreased during the same period. 

In previous years, the Company had reported residential loans held for sale by its mortgage banking division as part of its loan 
portfolio.  These loans are now reported separately on the consolidated balance sheet and are excluded from this discussion.  
Information for prior periods has been reclassified for consistent presentation. 

The commercial loan portfolio increased $650 million during 2008 to $7.4 billion at December 31, 2008.  Energy loans totaled 
$2.3 billion or 18% of total loans.  Outstanding energy loans increased $357 million during 2008.  Approximately $2.0 billion of 
energy loans was to oil and gas producers, up from $1.6 billion at December 31, 2007.  The amount of credit available to these 
customers generally depends on a percentage of the value of their proven energy reserves based on anticipated prices.  The 
energy category also included $161 million of loans to borrowers that provide services to the energy industry, $128 million of 
loans to borrowers engaged in wholesale or retail energy sales and $55 million of loans to borrowers  that manufacture equipment 
for the energy industry.  The energy category of our loan portfolio is distributed $1.1 billion in Oklahoma, $728 million in Texas 
and $433 million in Colorado. 

The services sector of the loan portfolio totaled $2.0 billion or 16% of total loans and consists of a large number of loans to a 
variety of businesses, including communications, gaming, financial services and transportation services.  Outstanding loans to the 
services sector of the loan portfolio increased $305 million during 2008.  Approximately $1.3 billion of the services category is 
made up of loans with individual balances of less than $10 million.  Approximately $731 million of the outstanding balance of 
services loans is attributed to Texas, $658 million to Oklahoma, $247 million to New Mexico, $135 million to Arizona and $132 
million to Colorado. 

Other notable loan concentrations by primary industry of the borrowers are presented in Table 23. 

  38

 
 
 
 
 
 
 
 
 
 
 
Table 23  Loans 

(In Thousands) 

Commercial: 
Energy 
Services 
Wholesale/retail 
Manufacturing 
Healthcare 
Agriculture 
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 

Total 

2008 

2007 

2006 

2005 

2004 

December 31, 

  $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 

  $1,399,417 
1,425,821 
793,032 
514,792 
520,309 
291,858 
354,706 
5,299,935 

  $1,223,195 
1,190,814 
699,318 
484,423 
424,257 
262,436 
291,393 
4,575,836 

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

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

692,615 
317,966 
1,010,581 

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 

638,366 
305,217 
499,174 
204,620 
90,601 
251,924 
1,989,902 

457,399 
312,016 
342,950 
231,985 
75,884 
200,876 
1,621,110 

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

867,748 
388,511 
1,256,259 

807,509 
361,822 
1,169,331 

847,254 
351,664 
1,198,918 

625,203 
296,094 
921,297 

465,622 
273,873 
739,495 

358,144 
271,000 
629,144 

234,630 
258,211 
492,841 

  $12,876,006 

  $11,940,570 

  $10,651,178 

  $9,088,312 

  $7,888,705 

BOK Financial participates 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, 2008, the outstanding principal balance of these loans totaled $2.2 billion.  
Substantially all of these loans are to borrowers with local market relationships.  BOK Financial serves as the agent lender in 
approximately 21% of its shared national credits, based on dollars committed.  The Company’s lending policies generally avoid 
loans in which we do not have the opportunity to maintain or achieve other business relationships with the customer. 

Commercial real estate loans totaled $2.7 billion or 21% of the loan portfolio at December 31, 2008.  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 $22 million or 1% from the previous year end.  Construction 
and land development loans decreased $81 million to $926 million at December 31, 2008.  Approximately $244 million of these 
loans are attributed to the Oklahoma market, $246 million to the Texas market, $172 million to the Colorado market and $155 
million to the Arizona market. 

Loans secured by multifamily residential properties increased $102 million, primarily in the Texas and Oklahoma markets.  
Loans secured by office buildings increased $38 million, primarily in the Colorado, Texas, Oklahoma and New Mexico markets. 
The geographic distribution of the $1.8 billion of commercial real estate loans excluding construction land and land development 
loans primarily consisted of $600 million in Oklahoma, $580 million in Texas, $206 million in New Mexico, $165 million in 
Arizona and $90 million in Colorado.  Other commercial real estate loans in the Arizona market included $64 million secured by 
retail facilities and $47 million secured by office facilities. 

Residential mortgage loans totaled $1.8 billion, up $218 million or 14% since December 31, 2007.  Permanent 1-4 family 
mortgage loans increased $181 million and home equity loans increased $37 million.  We have no concentration in sub-prime 
residential mortgage loans and our mortgage loan portfolio does not include payment option adjustable rate mortgage loans or 
loans with initial rates that are below market.  Our portfolio of permanent 1- 4 family mortgage loans includes $127 million of 
community development loans.  These loans are generally underwritten to prime standards and require full documentation.  
Approximately $1.2 billion of our residential mortgage loan portfolio is attributed to borrowers in Oklahoma and $315 million to 
borrowers in Texas. 

At December 31, 2008, consumer loans included $693 million of indirect automobile loans.  Approximately $434 million of 
these loans were purchased from dealers in Oklahoma and $170 million were purchased from dealers in Arkansas.  The 
remaining $88 million were purchased from dealers in Texas.  Indirect automobile loans increased $110 million through June 30, 

  39

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
2008, then decreased $42 million during the second half of 2008.  Approximately 6% of the outstanding balance at December 31, 
2008 is considered near-prime, which is defined as loans to borrowers that had poor credit in the past but have re-established 
credit over a period of time.  We generally do not originate sub-prime indirect automobile loans.   

Table 24  Loan Maturity and Interest Rate Sensitivity at December 31, 2008 

(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 

  $  7,411,603 
    2,701,248 
  $ 10,112,851 

  $  3,921,529 
    6,191,322 
  $ 10,112,851 

Remaining Maturities of Selected Loans 
Within 1 Year

1-5 Years 

After 5 Years 

  $ 2,482,847    $ 4,099,164 
934,537 

$    829,592 
  292,500 
 $ 5,033,701  $ 1,122,092 

1,474,211 
  $ 3,957,058 

  $  614,129    $ 2,707,477    $  599,923 
522,169 
  $ 3,957,058   $ 5,033,701    $ 1,122,092 

3,342,929 

2,326,224 

  40

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 25  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: 

Commercial 
Commercial real estate 
Residential mortgage 
Consumer 

Total Kansas 
Total BOK Financial loans 

Loan Commitments 

2008 

2007 

2006 

2005 

2004 

December 31, 

  $ 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 

  $ 3,059,441 
859,829 
842,456 
466,180 
  $ 5,227,906 

  $ 2,784,657 
744,724 
901,538 
367,947 
  $ 4,798,866 

  $ 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 

  $ 1,356,611 
569,921 
199,726 
89,017 
  $ 2,215,275 

  $ 1,120,069 
459,067 
191,296 
86,732 
  $ 1,857,164 

  $  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 

  $  383,325 
232,564 
65,784 
15,137 
  $  696,810 

  $  354,904 
196,832 
63,043 
13,260 
  $  628,039 

  $  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 

  $ 

79,719 
75,483 
13,044 
25,659 
  $  193,905 

  $ 

61,934 
74,478 
11,238 
3,858 
  $  151,508 

  $  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 

  $  270,108 
133,537 
21,918 
27,871 
  $  453,434 

  $  191,459 
118,134 
31,693 
21,044 
  $  362,330 

  $  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 

  $ 

50,489 
115,697 
26,102 
5,280 
  $  197,568 

  $ 

  $ 

– 
27,875 
– 
– 
27,875 

  $  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 

  $  100,242 
2,871 
301 
– 
  $  103,414 
  $ 9,088,312 

  $ 

62,813 
– 
110 
– 
  $ 
62,923 
  $ 7,888,705 

BOK Financial enters into certain off-balance sheet arrangements in the normal course of business.  These arrangements included 
loan commitments which totaled $5.0 billion and standby letters of credit which totaled $599 million at December 31, 2008.  
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 $1.6 
million of the outstanding standby letters of credit were issued on behalf of customers whose loans are non-performing at 
December 31, 2008.    

  41

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 26  Off-Balance Sheet Credit Commitments 

(In Thousands) 

2008 

2007 

2006 

2005 

2004 

As of December 31, 

Loan commitments 
Standby letters of credit 
Mortgage loans sold with recourse 

  $  5,015,660 
598,618 
391,188 

  $  5,345,736 
555,758 
392,534 

  $  5,318,257    $  4,349,114    $  3,459,425 
414,228 
32,134 

527,627 
329,713   

558,907 
248,150   

The Company also has off-balance sheet commitments 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 development programs and 
sold to U.S. government agencies.  These loans were underwritten to standards approved by the agencies, including full 
documentation.  However, these loans have a higher risk of delinquency and losses from default than traditional residential 
mortgage loans.  A separate recourse reserve is maintained as part of other liabilities.  At December 31, 2008, the principal 
balance of loans sold subject to recourse obligations totaled $391 million.  Substantially all of these loans are to borrowers in our 
primary markets including $274 million to borrowers in Oklahoma, $44 million to borrowers in Arkansas, $22 million to 
borrowers in New Mexico, $19 million to borrowers in the Kansas City area and $18 million to borrowers in Texas.   The  
separate reserve for this off-balance commitment totaled $8.8 million at December 31, 2008.  Approximately 3.14% of the loans 
sold with recourse with an outstanding principal balance of $13 million were either delinquent more than 90 days, in bankruptcy 
or in foreclosure.  The provision for credit losses on loans sold with recourse, which is included in mortgage banking costs, was 
$8.6 million for 2008.  Net losses charged against the reserve totaled $3.4 million for 2008.   

Customer Derivative Programs 

The Company offers programs that permit its 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 BOK Financial.  
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 its 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 BOK 
Financial recognizing a loss as the fair value of the affected contracts may no longer move in tandem with the offsetting 
contracts.  This occurs if the credit standing of the customer or counterparty deteriorated such that either the fair value of 
underlying collateral no longer 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, 2008, the net fair values of derivative contracts reported as assets 
under these programs totaled $656 million, up from $501 million at December 31, 2007.  At December 31, 2008, derivative 
contracts carried as assets included energy contracts with fair values of $423 million, interest rate contracts with fair values of 
$174 million and foreign exchange contracts with fair values of $52 million.  The aggregate net fair values of derivative contracts 
held under these programs reported as liabilities totaled $682 million. 

As of January 1, 2008, the Company adopted FASB Staff Position FIN 39-1 which permits offsetting of cash collateral against 
the fair value of derivative instruments executed with the same counterparty under a master netting agreement.  Total derivative 
assets were reduced by $217 million of cash collateral received from counterparties and total derivative liabilities were reduced 
by $15 million of cash collateral delivered to counterparties at December 31, 2008.      

  42

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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, 2008 was (in thousands): 

Customers 
Banks 
Energy companies 
Exchanges 
Other 
Fair value of customer hedge asset derivative contracts, net 

$206,719 
  120,516  
76,296 
30,204 
      5,319 
   $439,054 

The largest net reported amount due from a single counterparty, a subsidiary of a major energy company, at December 31, 2008 
was $64 million.  Letters of credit issued by independent financial institutions further reduce our exposure to this customer to $14 
million. 

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 $20 
per barrel of oil would increase the fair value of derivative assets by $256 million.  An increase in prices equivalent to $80 per 
barrel of oil would decrease the fair value of derivative assets by $98 million as current prices move closer to the fixed prices 
embedded in our existing contracts.  Further increases in prices equivalent to $120 per barrel of oil would increase the fair value 
of our derivative assets by $621 million.  Liquidity requirements of this program are also affected by our credit rating.  A 
decrease in credit rating from A1 to below investment grade would increase our obligation to post cash margin on existing 
contracts by approximately $286 million. 

Summary of Loan Loss Experience 

BOK Financial maintains separate reserves for loan losses and reserves for off-balance sheet credit risk.  The combined 
allowance for loan and off-balance sheet credit losses totaled $248 million or 1.93% of outstanding loans and 83% of non-
accruing loans at December 31, 2008.  At December 31, 2007, the combined allowance for loan losses and off-balance sheet 
credit losses was $148 million or 1.24% of outstanding loans and 175% of non-accruing loans.   The reserve for loan losses 
totaled $233 million or 1.81% of outstanding loans at December 31, 2008 and $127 million or 1.06% of outstanding loans at 
December 31, 2007.  The reserve for off-balance sheet credit commitments was $15 million at December 31, 2008, down from 
$21 million at December 31, 2007 due largely to changes in risk factors and the funding of existing commitments. 

Net loans charged off during 2008 totaled $102 million compared to $21 million in the previous year.   The ratio of net loans 
charged off to average outstanding loans was 0.81% for 2008 compared with 0.19% for 2007.  

Gross loans charged off in 2008 totaled $122 million, an increase of $91 million over 2007.  The single largest gross amount 
charged off during 2008 was $26 million from the SemGroup credit.  The remaining gross loans charged off included $49 million 
of other commercial loans, $19 million of commercial real estate loans and $21 million of consumer loans.  Recoveries of loans 
previously charged off increased to $20 million in 2008 from $11 million in the previous year.   In addition to the normal trend of 
recoveries, we recovered $7.1 million from a loan charged off in 2005 and $4.0 million from a loan charged off in 2001 during 
2008. 

Commercial loans charged off in 2008, in addition to SemGroup, included $17 million in the services sector of the loan portfolio.  
Commercial loans charged off were distributed across our markets.  Commercial real estate loans charged off were largely 
concentrated in the Arizona market.  Approximately $16 million of land and residential construction loans in Arizona were 
charged off in 2008. 

Consumer loan net charge-offs, which includes indirect auto loan and deposit account overdraft losses, totaled $14 million for 
2008, up $6.3 million over the previous year.  Net charge-offs of indirect auto loans totaled $8.6 million for 2008 and $2.9 
million for 2007.  Net indirect auto loans charged off were $4.7 million in the Oklahoma market, $2.9 million in the Arkansas 
market and $923 thousand in the Texas market.        

  43

 
 
 
 
 
 
 
 
 
 
 
 
Table 27  Summary of Loan Loss Experience 
(Dollars in Thousands) 

Reserve 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 
Reserve for off-balance sheet credit losses: 
Beginning balance 
Provision for off-balance sheet credit losses 
Additions due to acquisitions 
Ending balance 
Total provision for credit losses 
Reserve 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 
Reserve for loan losses as a multiple of net charge-offs 
Reserve for off-balance sheet credit losses to off-balance 
   sheet credit commitments 
Combined reserves for credit losses to loans outstanding       
  at year-end 
Problem Loans: 

Loans past due (90 days) 
Nonaccrual1 
Renegotiated2 
Total 

Foregone interest on nonaccrual loans1 

2008 

Years ended December 31, 
2006 

2007 

2005 

2004 

$126,677 

$109,497 

$103,876 

$108,618 

$ 114,784 

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

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

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

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 

9,670 
2,619 
1,212 
12,257 
25,758 

4,071 
117 
180 
5,176 
9,544 
16,214 
10,401 
1,071 
$ 103,876 

$20,890 
(37) 
– 
$20,853 

$20,574 
316 
– 
$20,890 
     $34,721            $18,402             $12,441       

$18,502 
2,040 
32 
$20,574 

13,921 
971 
1,465 
13,328 
29,685 

2,283 
30 
243 
5,171 
7,727 
21,958 
15,792 
– 
$ 108,618 

$13,855 
4,647 
– 
$18,502 
$20,439 

1.81% 
0.81 
1.62 
16.77 

2.29x 

0.27% 

1.93% 

1.06% 
0.19 
0.31 
33.24 

6.00x 

1.03% 
0.13 
0.19 
48.05 

8.78x 

1.14% 
0.19 
0.15 
37.05 

6.41x 

1.38% 
0.29 
0.27 
26.03 

4.95x 

0.35% 

0.36% 

0.42% 

0.48% 

1.24% 

1.22% 

1.37% 

1.61% 

$  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 

$  8,708 
25,162 
6,379 
$  40,249 
$  2,515 

$  7,649 
52,660 
4,689 
$  64,998 
$  4,617 

1 
2 

Interest collected and recognized on nonaccrual loans was not significant in 2008 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.   

The Company considers the credit risk from loan commitments and letters of credit in its evaluation of the adequacy of the 
reserve for loan losses.  A separate reserve for off-balance sheet credit risk is maintained.  Table 27 presents the trend of reserves 
for off-balance sheet credit losses and the relationship between the reserve and loan commitments.  The relationship between the 
combined reserve for credit losses and outstanding loans is also presented for comparison with peer banks and others who have 
not adopted the preferred presentation.  The provision for credit losses included the combined charge to expense for both the 
reserve for loan losses and the reserve for off-balance sheet credit losses.  All losses incurred from lending activities will 
ultimately be reflected in charge-offs against the reserve for loan losses following funds advanced against outstanding 
commitments and after the exhaustion of collection efforts.   

At December 31, 2008, specific impairment reserves totaled $29 million on total impaired loans of $270 million.  Specific 
impairment reserves were $4.4 million on total impaired loans of $74 million at December 31, 2007.  Impaired loans with no 
specific impairment reserves totaled $76 million at December 31, 2008.  Impairment losses on these loans were  charged-off 
against the allowance for loan losses as they were identified. 

Nonspecific reserves are maintained for risks beyond factors specific to an individual loan or those identified through migration 
analysis.  A range of potential losses is determined for each risk factor identified.  The range of nonspecific reserves for general 
economic factors includes their effect on our commercial, commercial real estate, residential mortgage and consumer loan 
portfolios.  Nonspecific reserves attributed to general economic conditions increased during 2008.  Weakness in the economy 

  44

  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
became more apparent due to disruption in the credit markets, lower consumer confidence and continued weakness in residential 
real estate markets. 

The provision for credit losses totaled $203 million for 2008, compared with $35 million for the previous year.  Factors 
considered in determining the provision for credit losses for 2008 included trends of increasing net charge-offs and 
nonperforming loans, concentrations in commercial real estate and residential homebuilder loans and deteriorating trends in the 
general economy.  The application of statistical migration factors to our loan portfolio identified a trend toward more rapid 
deterioration from pass grading in the current recession.  The increased provision also considered growth in identified potential 
problem loans.    

Table 28  Loan Loss Reserve Allocation 

(Dollars in Thousands) 

2008 

2007 

December 31, 
2006 

2005 

2004 

Reserve2 

% of 
Loans1 

Reserve2 

% of 
Loans1 

Reserve2 

% of 
Loans1 

Reserve2 

% of 
Loans1 

Reserve2 

% of 
Loans1 

Loan category: 
Commercial 
Commercial real  

estate 

Residential mortgage 
Consumer 
Nonspecific allowance 
Total 

$  100,743 

57.56%  $   49,961 

56.07%  $   44,151 

58.29%  $   43,915 

58.32%  $   52,325 

58.00% 

75,555 
14,017 
19,819 
23,102 

20.98 
13.61 
7.85 
– 

40,807 
6,156 
9,962 
19,791 

22.89 
13.38 
7.66 
– 

30,838 
4,663 
11,784 
18,061 

22.97 
11.80 
6.94 
– 

25,529 
5,302 
10,929 
18,201 

21.89 
12.87 
6.92 
– 

21,317 
5,904 
12,034 
17,038 

20.55 
15.20 
6.25 
– 

$  233,236  100.00%  $  126,677  100.00%  $  109,497  100.00%  $  103,876  100.00%  $  108,618  100.00% 

1  Excludes residential mortgage loans held for sale. 
2  Specific allocation for the loan concentration risks are included in the appropriate category. 

Non-performing Assets 

Non-performing assets totaled $342 million or 2.65% of outstanding loans and repossessed assets at December 31, 2008, up $238 
million since December 31, 2007.  In addition to $300 million of non-accruing loans, non-performing assets included $13 million 
of restructured residential mortgage loans and $29 million of real estate and other repossessed assets.  Approximately $10 million 
of the restructured residential mortgage loans are guaranteed by agencies of the U.S. government.   Non-performing assets 
included $15 million of loans and repossessed assets acquired with First United Bank in the second quarter of 2007.  The 
Company will be reimbursed by the sellers up to $5.3 million for any losses incurred during a three-year period after the 
acquisition date.  The Company generally retains non-performing assets to maximize potential recovery which may cause future 
non-performing assets to increase. 

Non-accruing commercial loans totaled $135 million or 1.82% of total commercial loans at December 31, 2008.  Non-accruing 
commercial loans increased $92 million since December 31, 2007.  Non-accruing loans in the energy sector of the commercial 
loan portfolio increased $49 million, substantially all due to the SemGroup credit.  This represents approximately one-third of our 
pre-bankruptcy credit exposure to SemGroup.  In addition, wholesale/retail, services and healthcare sectors of the commercial 
loan portfolio increased $15 million, $11 million and $10 million, respectively.  The distribution of non-accruing commercial 
loans among our various markets included $75 million in Oklahoma, $22 million in Colorado, $20 million in Texas and $11 
million in Kansas City.   

Non-accruing commercial real estate loans totaled $137 million or 5.08% of outstanding commercial real estate loans at 
December 31, 2008.  Total non-accruing commercial real estate loans increased $112 million since December 31, 2007, including 
a $63 million increase in loans secured by land, residential lots and residential construction properties, a $21 million increase in 
multifamily residential loans and a $10 million increase in loans secured by retail facilities.  Non-accruing land and residential 
construction loans totaled $76 million or 8.21% of the respective loan portfolio sector at December 31, 2008.  Other increases in 
non-accruing commercial real estate loans are spread across all sectors of the commercial real estate loan portfolio.  Non-
accruing commercial real estate loans attributed to our various markets included $76 million to Arizona, $23 million to 
Oklahoma, $14 million to Texas, $10 million to Colorado and $8 million to New Mexico.   

At December 31, 2008, non-accruing commercial real estate loans in the Arizona market totaled $76 million or 23.85% of 
commercial real estate loans in that market, up from $9 million or 1.70% at the previous year end.  Non-accruing land and 
residential lot and construction loans in Arizona totaled $50 million at December 31, 2008.  Other non-accruing commercial real 
estate loans in the Arizona market included $12 million of loans secured by retail properties, $6 million of loans secured by 
industrial properties and $3 million of loans secured by office properties.  These properties are primarily located in the Phoenix 
and Tucson areas of Arizona.   

  45

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Our consumer credit exposure consists primarily of permanent residential mortgage loans, home equity loans and indirect 
automobile loans.  Non-accruing permanent residential mortgage loans totaled $26 million or 2.06% of outstanding residential 
mortgage loans at December 31, 2008.  Non-accruing home equity loans totaled $1.2 million or 0.24% of outstanding home 
equity loans.  The distribution of non-accruing residential mortgage loans and home equity loans among our various markets 
included $11 million in Oklahoma, $8 million in Texas, $3 million in New Mexico and $3 million in Arizona.   

At December 31, 2008, the distribution of our $693 million portfolio of indirect automobile loans among various markets was 
$434 million in Oklahoma, $170 million in Arkansas and $88 million in Texas.  Approximately 3.36% of the indirect automobile 
loan portfolio is past due 30 days or more, including 3.25% in Oklahoma, 3.74% in Arkansas and 3.17% in Texas.  At September 
30, 2008, the most recent date for which comparable information is available, approximately 2.29% of our indirect automobile 
loan portfolio was past due 30 days or more.  This compares to a national average of 3.06% for indirect automobile loans past 
due 30 days or more at September 30, 2008. 

Real estate and other repossessed assets totaled $29 million at December 31, 2008, up from $9 million at December 31, 2007.  
Real estate and other repossessed assets included $18 million of 1-4 family residential properties and residential land 
development properties, $5 million of developed commercial real estate properties, $3 million of undeveloped land and $3 
million of automobiles.  Real estate owned and other repossessed assets are primarily located in Oklahoma, Texas, Arkansas and 
Colorado.  Approximately $2 million of residential and residential land development properties are supported by the First United 
Bank sellers’ guaranty.  

  46

 
 
 
 
Table 29  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 

Total nonaccrual loans 

Nonaccrual loans by loan portfolio sector: 

Commercial: 
Energy 
Manufacturing 
Wholesale / retail 
Agriculture 
Services 
Healthcare 
Other 

Total commercial 
Commercial real estate: 

Land development and construction 
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: 

2008 

2007 

December 31, 
2006 

2005 

2004 

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

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

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

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

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

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

  $ 

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

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

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

$ 11,673 
5,370 
7,347 
772 
25,162 
6,379 
31,541 
8,476 
$ 40,017 

$ 33,195 
10,144 
8,612 
709 
52,660 
4,689 
57,349 
3,763 
$ 61,112 

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

  $ 16,857 
5,475 
928 
– 
1,902 
– 
– 
  $ 25,162 

  $ 37,779 
2,223 
1,463 
2,717 
8,478 
– 
– 
  $ 52,660 

  $ 

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

2,031 
– 
732 
320 
– 
1,688 
4,771 

$ 

75 
1,113 
3,036 
268 
5,213 
1,942 
26 
11,673 

2,081 
– 
– 
668 
– 
2,621 
5,370 

$ 

276 
13,747 
4,604 
365 
13,274 
743 
186 
33,195 

6,706 
1,171 
409 
1,235 
16 
607 
10,144 

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 

6,844 
503 
7,347 
772 
$25,162 

7,824 
788 
8,612 
709 
  $ 52,660 

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

Loans past due (90 days)1 

74.49% 
2.43 
$19,123 

133.79% 
0.79 
$ 5,575 

305.37% 
0.34 
$  5,945 

329.34% 
0.35 
$  8,708 

189.40% 
0.73 
$  7,649 

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 to current market.   
Includes loans subject to First United Bank sellers 
escrow. 

$ 
872  
$10,396  

$  1,017 
$  7,550  

$  2,233 
$  5,747 

$  2,021 
$  3,577 

$ 2,308 
$ 2,131 

$13,181 

$  8,412 

$ 

– 

$ 

– 

$          – 

  47

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 or the value of the collateral.  Because the borrowers are still performing in accordance with 
the original terms of the loan agreements, and no loss of principal or interest is anticipated, these loans were not included in 
Nonperforming Assets.  Known information does, however, cause management concern as to the borrowers’ ability to comply 
with current repayment terms.  These potential problem loans totaled $95 million at December 31, 2008.  The current 
composition of potential problem loans by primary industry included real estate - $68 million, healthcare - $17 million and 
services - $6 million.  Potential problem real estate loans included $37 million of residential development loans on properties 
primarily located in Arizona and Colorado, $12 million of loans secured by undeveloped land located primarily in Arizona and 
$11 million of loans secured by office buildings.      

Liquidity and Capital 

Subsidiary Banks 

Deposits and borrowed funds are the primary sources of liquidity for the subsidiary banks.  Approximately 63% of our funding is 
provided by average deposit accounts, 22% from borrowed funds, 2% from long-term subordinated debt and 9% from 
shareholders’ equity.  Our funding sources, which primarily include deposits, borrowings from the Federal Home Loan Banks 
and other banks, and may include issuance of qualifying debt under the TLGP, provide adequate liquidity to meet our operating 
needs. 

Deposit accounts represent our largest funding source.  During 2008, the Company revised the presentation of certain deposit 
accounts.  Previously, demand deposit accounts were shown net of adjustments made to manage reserve requirements.  These 
adjustments were excluded from the current presentation to provide a more-meaningful presentation of the Company’s deposit 
accounts.  All prior periods have been reclassified for a consistent presentation.  The reclassification had no effect on total 
deposits, interest expense, net interest revenue or net interest margin. 

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 on-line Billpay 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.  

Average deposits represented approximately 63% of total average liabilities and capital for 2008, compared with 66% for 2007.  
The decrease in deposits relative to our other funding sources was due to several factors.  Funds purchased, repurchase 
agreements and other borrowed funds were lower-costing funding sources during much of 2008.  We increased borrowings to 
fund our securities portfolio growth.  Additionally, we increased borrowings in mid-year to fund margin calls related to our 
derivatives liabilities.  

Average deposits totaled $13.7 billion for 2008, up $1.1 billion or 9% over 2007.  Average interest-bearing transaction deposit 
accounts continued to grow in 2008, up $834 million or 15% over 2007.  Average demand deposits also increased, up $264 
million or 11% over last year.  Average time deposits decreased $16 million from 2007.   

Growth in our average interest-bearing transaction deposit accounts included $305 million of wealth management deposits, $306 
million of consumer banking deposits and $326 million of commercial deposits.   

Table 30  Maturity of Domestic CDs and Public  

Funds in Amounts of $100,000 or More 
(In Thousands) 

Months to maturity: 
3 or less 
Over 3 through 6 
Over 6 through 12 
Over 12 
Total 

December 31, 

2008 

2007 

  $  879,792 
844,957 
651,632 
710,395 
 $  3,086,776 

  $  820,339 
580,427 
456,103 
584,180 
 $ 2,441,049 

Brokered deposits, which are included in time deposits, averaged $735 million for 2008, up $120 million or 20% over the 
previous year.  Brokered deposits totaled $1.0 billion at December 31, 2008.  These deposits were largely added to remix 
wholesale funding sources in order to provide more available overnight liquidity.  Average wealth management time deposits  

  48

  
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
increased $102 million or 35% compared with 2007.  Average retail time deposits decreased $161 million or 6% compared with 
2007.   

Core deposits which we define as deposits of less than $100,000 excluding public funds and brokered deposits, averaged $6.6 
billion for 2008 and $6.4 billion for 2007.  Accounts with balances in excess of $100,000 excluding brokered deposit accounts 
averaged $5.6 billion for 2008 and $5.0 billion for 2007. 

The distribution of deposit accounts among our principal markets is shown in Table 31.   

  49

 
   
 
Table 31  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: 

Demand 
Interest-bearing: 
Transaction 
Savings 
Time 

Total interest-bearing 

Total Kansas 
Total BOK Financial deposits 

2008 

2007 

December 31, 
2006 

2005 

2004 

  $ 1,683,374 

  $ 1,394,861 

  $ 1,298,593 

  $ 1,333,331 

  $ 1,233,662 

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 

2,672,563 
85,837 
2,564,337 
5,322,737 
  $6,656,068 

2,152,655 
87,597 
2,505,849 
4,746,101 
  $ 5,979,763 

  $ 1,067,456 

  $ 1,035,134 

  $  848,152 

  $  841,197 

  $  688,353 

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 

1,310,105 
27,398 
735,731 
2,073,234 
  $ 2,914,431 

1,049,348 
30,331 
571,993 
1,651,672 
  $ 2,340,025 

  $  155,345 

  $  151,231 

  $  175,980 

  $  172,363 

  $  153,063 

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 

338,025 
17,839 
453,314 
809,178 
  $  981,541 

303,654 
17,885 
411,939 
733,478 
  $  886,541 

  $ 

16,293 

  $ 

13,247 

  $ 

15,604 

  $ 

14,414 

  $ 

16,056 

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 

18,369 
1,058 
75,034 
94,461 
  $  108,875 

25,315 
1,434 
99,677 
126,426 
  $  142,482 

  $  116,637 

  $  117,939 

  $ 

80,559 

  $ 

91,483 

  $ 

78,756 

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 

228,832 
17,772 
264,020 
510,624 
  $  602,107 

173,345 
19,092 
54,394 
246,831 
  $  325,587 

  $ 

39,424 

  $ 

46,701 

  $ 

51,542 

  $ 

59,689 

  $ 

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 

42,872 
4,111 
5,624 
52,607 
  $  112,296 

  $ 

  $ 

3,850 

  $ 

9,656 

  $ 

57 

  $ 

– 

  $ 

– 

– 
– 
– 
– 
– 

– 

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    $ 11,375,318    $  9,674,398 

– 
– 
– 
– 
– 

  $ 

  $ 

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 $200 million at December 31, 2008.  
Securities repurchase agreements generally mature within 90 days and are secured by certain available for sale securities.  

  50

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
 
 
 
 
 
 
 
 
 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 
 
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 mortgage-backed securities, 1-4 family mortgage loans and multifamily mortgage 
loans).  At December 31, 2008, the outstanding balance of federal funds purchased totaled $1.6 billion and securities repurchase 
agreements totaled $1.4 billion.  Amounts borrowed from the Federal Home Loan Banks of Topeka and Dallas totaled $991 
million.   

The Company elected to participate in the TLGP, which expanded insurance coverage to certain qualifying debt issued by 
eligible financial institutions.  In general, senior unsecured debt newly issued on or before June 30, 2009 will be fully protected 
by the FDIC through the earlier of the maturity of the debt or June 30, 2012.  Collectively, our subsidiary banks may issue up to 
$1.8 billion of TLGP protected debt.  No TLGP protected debt is currently outstanding. 

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 $450 million 
at December 31, 2008. 

At December 31, 2008, the estimated unused credit available to the subsidiary banks from our traditional sources and within our 
internal policy limits was approximately $4.6 billion.   

Parent Company 

The primary source of liquidity for BOK Financial is dividends from subsidiary 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.  Based on the most restrictive limitations, at December 31, 2008, the subsidiary 
banks could declare up to $171 million of dividends without regulatory approval.  Management has developed and the Board of 
Directors has approved an internal capital policy that is more restrictive than the regulatory capital standards.  The subsidiary 
banks could declare dividends of up to $119 million under this policy.  Future losses or increases in required regulatory capital at 
the subsidiary banks could affect their ability to pay dividends to the parent company.  

On July 21, 2008, the Company entered into a $188 million, unsecured revolving credit agreement with George B. Kaiser, its 
Chairman and principal shareholder.  The revolving credit agreement with Mr. Kaiser replaced a similar credit agreement with 
certain commercial banks that was terminated at the Company’s request.  The Company was in compliance with all terms of that 
credit agreement when it was terminated.  Interest on the outstanding balance due to Mr. Kaiser is based on one-month LIBOR 
plus 125 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 25 basis points.  This agreement has no restrictive covenants.  This credit agreement matures in 
December, 2010.  At December 31, 2008, the outstanding balance under this credit agreement was $50 million.  Subsequent to 
December 31, 2008, the Company fully repaid the amounts owed under this credit agreement. 

Equity capital for BOK Financial was $1.8 billion at December 31, 2008, down $89 million from December 31, 2007.   Net 
income less cash dividend paid increased equity $94 million.  Accumulated other comprehensive losses increased $192 million 
during 2008 due primarily to an increase in net unrealized losses on available for sale securities.  Employee stock option 
transactions increased equity capital $16 million and common share repurchases reduced shareholders’ equity $8.0 million.   
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.   

BOK Financial is the largest commercial bank, based on asset size, 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 in both the current 
environment and in several capital stress environments.  We considered capital requirements for organic growth and potential 
acquisitions, the cost of TARP capital and a defined exit strategy when the cost of TARP capital increases substantially at the end 
of year five.  We also considered reasonable capital and liquidity support from our majority shareholder. 

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 $38.7 million.  The 
Company repurchased 166,114 shares for $8.0 million in 2008. 

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. 

  51

 
 
 
 
 
 
 
 
 
 
 
 
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 for each of the subsidiary banks are presented in Note 16 to the 
Consolidated Financial Statements. 

Capital resources of financial institutions are also regularly measured by the tangible common shareholders’ equity ratio.  
Common shareholders’ equity is shareholders’ equity as defined by generally accepted accounting principles 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.  This non-GAAP measurement is a valuable 
indicator of a financial institution’s capital strength since it eliminates intangible assets from shareholders’ equity and retains the 
effect of unrealized losses on securities and other components of accumulated other comprehensive income (loss) in 
shareholders’ equity.  At December 31, 2008, BOK Financial’s tangible common shareholders’ equity ratio was 6.64%.   

Off-Balance Sheet Arrangements 

During the third quarter of 2007, BOk agreed to guarantee rents totaling $28.4 million over 10 years to the City of Tulsa (“City”) 
as owner of a building immediately adjacent to the bank’s main office.  These rents are due for space rented by third-party 
tenants in the building as of the date of the agreement.  All guaranteed space has been rented since the date of the agreement.  In 
return for this guarantee, BOk will receive 80% of net rent as defined in an agreement with the City over the next 10 years from 
space in the same building that was vacant as of the date of the agreement.  The maximum amount that BOk may receive under 
this agreement is $4.5 million.  The fair value of this agreement at inception was zero and no asset or liability is currently 
recognized in the Company’s financial statements. 

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.  The 
following table summarizes payments due per these contractual obligations at December 31, 2008. 

Table 32  Contractual Obligations as of December 31, 2008 

(In Thousands) 

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

Less Than 
1 Year 

1 to 3 
Years 

4 to 5 
Years 

More Than 
5 Years 

  $  966,345 
1,064,235 
21,875 
17,108 
430,036 
10,298 
  $  2,509,897 

  $ 1,074,944 
312,870 
43,750 
31,224 
60,295 
18,241 
  $ 1,541,324 

  $  227,371    $ 153,838  
9,526 
480,417 
29,904 
10,503 
– 
  $ 684,188 

1,144 
43,750 
20,855 
173,284 
13,660 
  $  480,064 

Total 

  $2,422,498  
1,387,775 
589,792 
99,091 
674,118 
42,199 
  $ 5,215,473 

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 

$   5,015,660 
  598,618
  391,188 
13,911 
17,531 
22,524 

Payments on time deposits and other borrowed funds include interest which has been calculated from rates at December 31, 
2008.  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. 

  52

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
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 $2.0 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.  

The Company has funded $43 million and has commitments to fund an additional $14 million for various alternative investments.  
Alternative investments generally consist of limited partnership interests in or loans to entities that invest in 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.  

The Company has $17.5 million of commitments to make investments through its BOK Financial Private Equity Funds.  These 
commitments, which are included in unfunded third-party private equity commitments, generally reflect customer investment 
obligations. 

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 
$15 million liability for these plans.  This liability would increase to $16 million if all awards were fully vested.  We also have 
obligations with respect to employee and executive benefit plans.  See Notes 12 and 13 to the Consolidated Financial Statements 
for additional information about our employee benefit plans.    

Recently Issued Accounting Standards 

Financial Accounting Standards Board 

Statement of Financial Accounting Standards No. 159, “The Fair Value Option for Financial Assets and Financial Liabilities” 
(“FAS 159”) 

The Company adopted FAS 159, effective January 1, 2008.  FAS 159 provides an option to measure eligible financial assets and 
financial liabilities at fair value.  Certain certificates of deposit that were either currently designated as hedged or had previously 
been designated as hedged, but no longer met the correlation requirements of FAS 133, were designated as being reported at fair 
value.  Adoption of FAS 159 increased opening retained earnings for the first quarter of 2008 by $62 thousand.  Interest expense 
on certificates of deposit carried at fair value is based on the instruments’ contractual interest rates and outstanding principal 
balances.   

Statement of Financial Accounting Standards No. 141 (Revised), “Business Combinations” (“FAS 141R”) 

The FASB issued FAS 141R during 2007 to replace Statement of Financial Accounting Standards No. 141, Business 
Combinations.  FAS 141R applies to all transactions or other events in which an entity obtains control over one or more 
businesses, including combinations achieved without the transfer of consideration.  FAS 141R retains the fundamental 
requirement that all business combinations must be accounted for under the acquisition or purchase method of accounting.  All 
assets acquired, including identifiable intangible assets, liabilities assumed and any non-controlling interests must be recognized 
at the acquisition-date fair values.  Banks may no longer carry over the pre-acquisition allowance for loan losses.  Costs incurred 
to effect the acquisition and restructuring costs that the acquirer is expected but not obligated to incur must be recognized 
separately from the business combination.  Contingent assets and liabilities generally will be recognized at their acquisition-date 
fair values.  Changes in the recognized amounts of contingent assets and liabilities will be recognized in post acquisition-date 
earnings.  FAS 141R may have a significant effect on the Company’s financial statements for business combinations completed 
after January 1, 2009. 

Statement of Financial Accounting Standards No. 160,”Non-controlling Interest in Consolidated Financial Statements – An 
Amendment of ARB No. 51” (“FAS 160”) 

The FASB issued FAS 160 during 2007 to establish accounting and reporting standards for the non-controlling interest in a 
subsidiary and for the deconsolidation of a subsidiary.  FAS 160 clarifies that a non-controlling interest in a subsidiary, which is 
sometimes referred to as minority interest, is an ownership interest in the consolidated entity that should be reported as a 
component of equity in the consolidated financial statements.  Among other requirements, FAS 160 requires consolidated net 
income to be reported at amounts that included the amounts attributable to both the parent and the non-controlling interest.  It 
also requires disclosure, on the face of the consolidated income statement, of the amounts of consolidated net income attributable 

  53

 
 
 
 
 
 
 
 
 
 
 
 
 
 
to the parent and to the non-controlling interest.  FAS 160, which will be adopted on January 1, 2009, is not expected to have a 
significant impact on the Company’s financial statements. 

Statement of Financial Accounting Standards No. 161, “Disclosure About Derivative Instruments and Hedging Activities, an 
Amendment of FASB Statement No. 133,” (“FAS 161”) 

FAS 161 amends and expands the disclosure requirements of FAS 133 to provide greater transparency about (i) how and why an 
entity uses derivative instruments, (ii) how derivative instruments and related hedged items are accounted for under FAS 133 and 
its related interpretations, and (iii) how derivative instruments and related hedged items affect an entity’s financial position, 
results of operations and cash flows.  To meet those objectives, FAS 161 requires qualitative disclosures about objectives and 
strategies for using derivatives, quantitative disclosures about fair value amounts of gains and losses on derivative instruments 
and disclosures about credit-risk-related contingent features in derivative agreements.  FAS 161 is effective for the Company on 
January 1, 2009 and is not expected to have a significant impact on the Company’s financial statements. 

FASB Staff Position FIN 39-1, “Amendment of FASB Interpretation No. 39” 

As of January 1, 2008, the Company adopted FSP FIN 39-1, which permits offsetting of cash collateral against the fair value of 
derivative instruments executed with the same counterparty under a master netting agreement.  The total amount of derivative 
assets and liabilities as of December 31, 2008 was reduced by $217 million and $15 million, respectively, of cash collateral.  
Derivative liabilities as of December 31, 2007 were reduced by $172 million of cash collateral. 

FASB Staff Position No. EITF 99-20-1, “Amendment to the Impairment and Interest Income Measurement Guidance of EITF 
Issue No. 99-20” (“FSP EITF 99-20-1”) 

FSP EITF 99-20-1 amends the impairment (and related interest income measurement) guidance for certain beneficial interests in 
securitized financial assets that are within the scope of EITF Issue No. 99-20, “Recognition of Interest Income and Impairment of 
Purchased Beneficial Interests and Beneficial Interests That Continue to Be Held by a Transferor in Securitized Financial Assets” 
(“EITF 99-20”).  This FSP eliminates the requirement that a holder’s best estimate of cash flows be based upon those that “a 
market participant” would use.  Instead, this FSP requires that an other-than-temporary impairment (“OTTI”) be recognized as a 
realized loss through earnings when it is “probable” there has been an adverse change in the holder’s estimated cash flows from 
the cash flows previously projected, which is consistent with the impairment model in FAS 115.  The FSP also reiterates and 
emphasizes the objective of an OTTI assessment and the related disclosure requirements in FAS 115 and other related guidance, 
including the requirement that the holder consider all available information when developing the estimate of future cash flows 
(i.e. past events, current conditions and expected events).  FSP 99-20-1 is effective for the Company as of December 31, 2008 
and did not have a significant impact on the Company’s financial statements. 

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 reserves for loan losses and off-balance sheet credit losses, reserves 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. 

  54

 
 
 
 
 
 
 
 
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. 

Responsibility for managing market risk rests with the Asset / Liability Committee that operates under policy guidelines 
established by the Board of Directors.  The acceptable negative variation in net interest revenue, net income or economic value of 
equity due to a specified basis point increase or decrease in interest rates is generally limited by these guidelines to +/- 10%.  
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 be relatively neutral 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 24 months based on eight 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 100 basis point 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 also performs a sensitivity analysis based on a “most 
likely” interest rate scenario, which includes non-parallel shifts in interest rates.  An independent source is used to determine the 
most likely interest rate scenario. 

The Company’s primary interest rate exposures included the Federal Funds rate, which affects short-term borrowings, and the 
prime lending rate and LIBOR, which are the basis for much of the variable-rate loan pricing.  Additionally, 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 33 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 identified as economic hedges are presented in the Lines of Business – 
Consumer Banking section of this report. 

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. 

  55

 
 
 
 
 
 
 
 
 
 
 
Table 33  Interest Rate Sensitivity 

 (Dollars in Thousands) 

200 bp Increase 

100 bp Decrease 

Most Likely 

2008 

2007 

2008 

2007 

2008 

2007 

Anticipated impact over the next 

twelve months on net interest revenue    $  (5,609) 

(0.8)%

  $ (12,424) 
(2.0)%

$  (27,628) 

(3.8)% 

*** 
*** 

  $  1,892 

  $  9,012 

0.3% 

1.5% 

*** A 100 basis point decrease was not computed in 2007.  A 200 basis point decrease in interest rates was expected to increase net interest 
revenue by $3.1 million or 0.5%. 

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 $3.6 million. At 
December 31, 2008, the VAR was $1.6 million. The greatest value at risk during 2008 was $2.7 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. 

  56

 
 
 
 
 
 
 
 
 
 
   
 
   
 
 
 
 
 
 
 
 
  57

 
 
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, 2008.  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, 2008. 

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, 2008. 

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, 2008.  Their report, which expresses unqualified opinions on the effectiveness of the 
Company’s internal control over financial reporting as of December 31, 2008, is included in this annual report. 

  58

 
 
 
 
 
 
 
 
 
 
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, 2008 and 
2007, and the related consolidated statements of income, shareholders' equity, and cash flows for each of the three years in the 
period ended December 31, 2008.  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, 2008 and 2007, and the consolidated results of their operations and their 
cash flows for each of the three years in the period ended December 31, 2008, in conformity with U.S. generally accepted 
accounting principles. 

As discussed in Note 11 to the consolidated financial statements, BOK Financial Corporation changed its method of accounting 
for uncertainty in income taxes recognized as of January 1, 2007, in accordance with Financial Accounting Standards Board 
Interpretation No. 48, Accounting for Uncertainty in Income Taxes-An Interpretation of FASB Statement No. 109.  Also, BOK 
Financial Corporation changed its framework for fair value measurements as of January 1, 2007, in accordance with Financial 
Accounting Standards Board Statement No. 157, Fair Value Measurement. 

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, 2008, 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 26, 2009 expressed an unqualified opinion thereon. 

Ernst & Young LLP 

Tulsa, Oklahoma 

February 26, 2009 

  59

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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, 2008, 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, 2008, 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, 2008 and 2007, and the related consolidated 
statements of earnings, shareholders’ equity, and cash flows for each of the three years in the period ended December 31, 2008 of 
BOK Financial Corporation and our report dated February 26, 2009 expressed an unqualified opinion thereon. 

Ernst & Young LLP 

Tulsa, Oklahoma 

February 26, 2009 

  60

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consolidated Statements of Earnings 
(In Thousands Except Share And Per Share Data) 

Interest Revenue 
Loans                                                                                   
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 
Margin asset fees 
Other revenue 

Total fees and commissions 

Gain (loss) on sales of assets 
Gain (loss) on securities, net 
Gain (loss) on derivatives, net 

Total other operating revenue 

Other Operating Expense 
Personnel  
Business promotion 
Professional fees and services 
Net occupancy and equipment 
Insurance 
Data processing and communications 
Printing, postage and supplies 
Net losses and operating expenses of repossessed assets 
Amortization of intangible assets 
Mortgage banking costs 
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 
Earnings Per Share: 

Basic 
Diluted 

Average Shares Used in Computation: 

Basic 
Diluted 

See accompanying notes to consolidated financial statements. 

2008 

2007 

2006 

  $  732,210 
313,360 
10,651 
324,011 
3,847 
1,577 
1,061,645 

  $  892,024 
248,972 
13,604 
262,576 
1,657 
4,480 
1,160,737 

  $  751,391 
222,531 
9,819 
232,350 
847 
1,841 
986,429 

288,924 
103,597 
22,262 
414,783 
646,862 
202,593 
444,269 

42,804 
100,153 
78,979 
117,528 
27,074 
10,681 
8,548 
28,233 
414,000 
(660) 
21,637 
1,299 
436,276 

412,746 
178,605 
24,901 
616,252 
544,485 
34,721 
509,764 

62,542 
90,425 
78,231 
109,218 
22,275 
10,058 
4,800 
28,073 
405,622 
(928) 
(8,328) 
2,282 
398,648 

336,908 
142,553 
20,280 
499,741 
486,688 
18,402 
468,286 

53,413 
78,622 
71,037 
102,436 
26,996 
2,558 
10,166 
26,468 
371,696 
1,499 
(950) 
(622) 
371,623 

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 
218,141 
64,909 
  $  153,232 

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 
333,425 
115,761 
  $  217,664 

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 
327,602 
114,625 
  $  212,977 

  $ 
  $ 

2.28 
2.27 

  $ 
  $ 

3.24 
3.22 

  $ 
  $ 

3.19 
3.16 

67,274,457 
67,557,220 

67,083,200 
67,550,538 

66,759,384 
67,310,005 

  61

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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: 2008 – $245,769; 2007 – $248,788) 
Mortgage trading securities 
Total securities 

Residential mortgage loans held for sale 
Loans 
Less reserve for loan losses 
Loans, net of reserve 
Premises and equipment, net 
Accrued revenue receivable 
Intangible assets, net 
Mortgage servicing rights, net 
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 $632,754 at fair value at December 31, 2008) 
Total deposits 

Funds purchased and repurchase agreements 
Other borrowings 
Subordinated debentures 
Accrued interest, taxes and expense 
Bankers’ acceptances 
Derivative contracts 
Other liabilities 

Total liabilities 
Shareholders’ equity: 

Preferred stock ($.00005 par value; 1,000,000,000 shares authorized; no shares issued and 

outstanding) 

Common stock ($.00006 par value; 2,500,000,000 shares authorized;  

shares issued and outstanding:  2008 – 69,884,749; 2007 – 69,465,154) 

Capital surplus 
Retained earnings 
Treasury stock (shares at cost: 2008 – 2,411,663; 2007 – 2,158,774) 
Accumulated other comprehensive loss 
Total shareholders’ equity 

Total liabilities and shareholders’ equity 

See accompanying notes to consolidated financial statements. 

December 31, 

2008 

2007 

$  

$  

581,133 
113,809 
99,601 

717,259 
173,154 
45,724 

5,800,691 
590,760 
242,344 
399,211 
7,033,006 
129,246 
12,876,006 
(233,236) 
12,642,770 
277,458 
96,673 
361,209 
42,752 
29,179 
12,913 
452,604 
237,006 
239,474 
385,815 
22,734,648 

5,323,001 
327,539 
247,949 
154,701 
6,053,190 
76,677 
11,940,570 
(126,677) 
11,813,893 
258,786 
128,350 
368,353 
70,009 
9,475 
1,780 
502,446 
229,540 
19,964 
199,101 
20,667,701 

$  

$  

$  

3,082,379 

$  

2,768,769 

6,562,350 
154,635 
5,183,243 
14,982,607 
3,025,399 
1,522,054 
398,407 
133,220 
12,913 
667,034 
146,757 
20,888,391 

6,203,516 
156,368 
4,330,638 
13,459,291 
3,225,131 
1,027,564 
398,273 
124,029 
1,780 
341,677 
154,572 
18,732,317 

– 

– 

4 
743,411 
1,427,057 
(101,329) 
(222,886) 
1,846,257 
22,734,648 

$ 

4 
722,088 
1,332,954 
(88,428) 
(31,234) 
1,935,384 
20,667,701 

$ 

  62

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2008 

2007 

2006 

  $ 

153,232 

  $ 

217,664    $ 

212,977 

202,593 
34,515 
35,408 
51,282 
(7,466) 
(895) 
4,798 
(18,106) 
(30,981) 
(1,201,613) 
1,170,722 
(297,292) 
41,570 
(82,948) 
9,191 
18,055 
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) 

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 

411,860 
114,120 
30,972 

34,721 
2,893 
(11,162)
43,524 
(17,310)
(3,460)
8,483 
(2,404)
7,663 
(1,022,829)
1,008,828 
896 
(30,719)
14,598 
19,277 
(32,886)
237,777 

806,979 
93,245 
1,186,319 
(92,648)
(2,909,791)
(936,018)
(143,649)
– 
67 
48,341 
(44,929)
(47,476)
(2,039,560)

18,402 
(3,009)
(1,531)
39,303 
(964)
(4,014)
10,682 
1,326 
(10,629)
(735,432)
741,901 
(131,209)
(18,362)
(56,423)
12,533 
70,119 
145,670 

646,944 
59,099 
686,163 
(62,850)
(1,208,842)
(1,727,123)
(20,146)
(201,987)
165 
81,731 
(54,520)
135 
(1,801,231)

860,612 
(291,822)
1,301,093 
(117,491)
13,747 
– 
– 
248,618 
(150,000)
(58,451)
152,873 
3,460 
(17,353)
(50,416)
1,894,870 
93,087 
797,326 
890,413    $ 

638,901 
364,344 
550,038 
98,991 
12,647 
– 
– 
– 
– 
103,188 
30,333 
4,014 
(12,103)
(36,788)
1,753,565 
98,004 
699,322 
797,326 

608,963    $ 
115,627 
9,825 

493,873 
117,604 
7,057 

  $ 

  $ 

  $ 

  $ 

Consolidated Statements of Cash Flows 
(In Thousands) 

Cash Flows From Operating Activities: 
Net income 
Adjustments to reconcile net income to cash provided by operations: 

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 benefit on exercise of stock options 
Stock-based compensation 
Net (accretion) amortization of securities discounts and premiums 
Net (gain) loss on sale of assets 
Mortgage loans originated for resale 
Proceeds from sale of mortgage loans held for resale 
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 
Loans originated or acquired net of principal collected 
Net payments or proceeds on derivative asset contracts 
Investment in bank-owned life insurance 
Net change in other investment assets 
Proceeds from disposition of assets 
Purchases of other assets 
Cash and equivalents of subsidiaries and branches acquired and sold, net 

Net cash used by 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 
Change in amount receivable (due) on unsettled security transactions 
Issuance of common and treasury stock, net 
Issuance of other borrowings 
Pay down of other borrowings 
Issuance of subordinated debenture, net 
Pay down of subordinated debentures 
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 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 

Cash paid for interest 
Cash paid for taxes 
Net loans transferred to repossessed real estate 

See accompanying notes to consolidated financial statements. 

  63

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Consolidated Statements of Changes in Shareholders’ Equity 
(In Thousands) 

December 31, 2005 
Effect of implementing FAS 156, net of tax 
Comprehensive income: 

Net income 
Other comprehensive loss, net of tax 

     Comprehensive income 
Treasury stock purchase 
Exercise of stock options 
Tax benefit on exercise of stock options 
Stock-based compensation 
Cash dividends on common stock 
December 31, 2006 
Effect of implementing FAS 157, net of tax 
Effect of implementing FIN 48 
Comprehensive income: 

Net income 
Other comprehensive income, net of tax 

    Comprehensive income 
Treasury stock purchase 
Exercise of stock options 
Tax benefit on exercise of stock options 
Stock-based compensation 
Cash dividends on common stock 
December 31, 2007 
Effect of implementing FAS 159, net of tax 
Comprehensive income (loss): 

Net income 
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 
December 31, 2008 

See accompanying notes to consolidated financial statements. 

Preferred Stock 

Common Stock 

Shares 
– 
– 

Amount 
$  – 
– 

Shares 
67,905 
– 

Amount 
$4 
– 

– 
– 

– 
– 
– 
– 
– 
– 
– 
– 

– 
– 

– 
– 
– 
– 
– 
– 
– 

– 
– 

– 
– 
– 
– 
– 
– 

– 
– 

– 
– 
– 
– 
– 
– 
– 
– 

– 
– 

– 
– 
– 
– 
– 
  – 
– 

– 
– 

– 
– 
– 
– 
– 
$  – 

– 
– 

– 
800 
– 
– 
– 
68,705 
– 
– 

– 
– 

– 
760 
– 
– 
– 
69,465 
– 

– 
– 

– 
420 
– 
– 
– 
69,885 

– 
– 

– 
– 
– 
– 
– 
4 
– 
– 

– 
– 

– 
– 
– 
– 
– 
4 
– 

– 
– 

– 
– 
– 
– 
– 
$4 

  64

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Accumulated 
Other 
Comprehensive 
Income (Loss) 
$ (67,811) 
– 

– 
(5,633) 

– 
– 
– 
– 
– 
  (73,444) 
– 
– 

– 
42,210 

– 
– 
– 
– 
– 
  (31,234) 
– 

– 
(191,652) 

– 
– 
– 
– 
– 
$ (222,886) 

Capital 
Surplus 
$656,579 
– 

– 
– 

– 
21,897 
4,014 
6,371 
– 
  688,861 
– 
– 

– 
– 

– 
23,429 
3,460 
6,338 
– 
  722,088 
– 

– 
– 

– 
12,652 
895 
7,776 
– 
$  743,411 

Retained 
Earnings 
  $990,422 
383 

212,977 
– 

– 
– 
– 
– 
(36,788) 
  1,166,994 
(679) 
(609) 

217,664 
– 

– 
– 
– 
– 
(50,416) 
  1,332,954 
62 

153,232 
– 

– 
– 
– 
– 
(59,191) 
  $  1,427,057 

Treasury Stock 

Shares 
1,202 
– 

Amount 
  $(40,040) 
– 

Total 

   $1,539,154 
383 

– 
– 

249 
186 
– 
– 
– 
1,637 
– 
– 

– 
– 

340 
182 
– 
– 
– 
2,159 
– 

– 
– 

166 
87 
– 
– 
– 
2,412 

– 
– 

(12,103) 
(9,250) 
– 
– 
– 
(61,393) 
– 
– 

– 
– 

(17,353) 
(9,682) 
– 
– 
– 
(88,428) 
– 

– 
– 

(7,992) 
(4,909) 
– 
– 
– 
  $ (101,329) 

212,977 
(5,633) 
207,344 
(12,103) 
12,647 
4,014 
6,371 
(36,788) 
1,721,022 
(679) 
(609) 

217,664 
42,210 
259,874 
(17,353) 
13,747 
3,460 
6,338 
(50,416) 
1,935,384 
62 

153,232 
(191,652) 
(38,420) 
(7,992) 
7,743 
895 
7,776 
(59,191) 
$  1,846,257 

  65

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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.  During 2008, the Company revised the presentation of certain deposit 
accounts.  Previously, demand deposit accounts were shown net of adjustments made to manage reserve requirements.  These 
adjustments were excluded from the current presentation to provide a more meaningful presentation of the Company’s deposit 
accounts.  All prior periods have been reclassified for a consistent presentation.  The reclassification had no effect on total 
deposits, interest expense, net interest revenue or net interest margin. 

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 in FASB Interpretation No. 46R, “Consolidation of Variable Interest Entities,” 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, Missouri / Kansas. 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 collectibility, 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 present value based on current interest 
rates, appraised values or fair values 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.   

Intangible Assets  

Intangible assets, which generally result from business combinations, are accounted for under the provisions of Statement of 
Financial Accounting Standards No. 142, “Goodwill and Other Intangible Assets,” and No. 147, “Acquisitions of Certain 
Financial Institutions.” 

Intangible assets with indefinite lives, such as goodwill, are 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 business units is estimated by the discounted future earnings method. Income growth is 
projected over a seven-year period 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 Company in the aggregate are based on observable inputs, such as the market value of BOK 
Financial common stock.  However, attribution of the overall fair value to individual business units requires significant 
unobservable inputs.  In total, the fair value measurement for goodwill impairment evaluation is based on Level 3 inputs as 
defined by FAS 157.  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. 

  66

 
 
 
 
 
 
 
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. 

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 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 to hold the 
security until the fair value exceeds amortized cost.  An impairment charge is recorded against earnings 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 
repledge the collateral. 

Certain 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. 

The purchase or sale of securities is recognized on a trade date basis. A net 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. These commitments are not reflected in BOK 
Financial’s balance sheet until settlement date if they meet specific criteria exempting them from the definition of 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, foreign exchange rates and the Company’s and counterparty credit ratings, 
when appropriate.  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 in the income statement line item “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 item’s 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. 

  67

 
 
 
 
 
 
 
 
 
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. 

Derivative contracts are also offered to customers.  BOK Financial serves as an intermediary between its customers and the 
markets.  Each contract between BOK Financial and its customers is offset by a contract between BOK Financial and various 
counterparties.  These contracts are carried at fair value.  Compensation for credit risk and reimbursement of administrative costs 
are 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. 

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, generally when the collection of principal 
or interest is 90 days or more past due. 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. 

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. 

Mortgage loans originated by our mortgage banking unit are held for sale and are carried at the lower of aggregate cost or market 
value. Mortgage loans held for sale that are designated as hedged assets are carried at fair value based on sales commitments or 
market quotes. Changes in fair value after the date of designation of an effective hedge are recorded in other operating revenue – 
mortgage banking revenue. 

Reserve for Loan Losses and Off-Balance Sheet Credit Losses 

Reserves 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. A consistent methodology has been developed that  includes reserves assigned to 
specific criticized loans, general reserves that are based upon statistical migration analyses for each category of loans, and a 
nonspecific allowance that is based upon an analysis of current economic conditions, loan concentrations, portfolio growth and 
other relevant factors. The reserve for loan losses related to loans that are identified for evaluation in accordance with Statement 
of Financial Accounting Standards No. 114, “Accounting by Creditors for Impairment of a Loan” (“FAS 114”), is based on 
discounted cash flows using the loan’s initial effective interest rate, the fair value of the collateral for certain collateral dependent 
loans, or historical statistics. 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 agreement. This is substantially the same criteria used to 
determine when a loan should be placed on nonaccrual status. This evaluation is inherently subjective as it requires material 
estimates including the amounts and timing of future cash flows expected to be received on impaired loans that may be 
susceptible to significant change. 

In accordance with the provisions of FAS 114, management has excluded small balance, homogeneous loans from the 
impairment evaluation specified in FAS 114. Such loans include 1-4 family mortgage loans, consumer loans and commercial 
loans with committed amounts less than $1 million. The adequacy of the reserve for loan losses applicable to these loans is 
evaluated in accordance with generally accepted accounting principles and standards established by the banking regulatory 
authorities and adopted as policy by BOK Financial. 

A provision for credit losses is charged against earnings in amounts necessary to maintain adequate reserves 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 

  68

 
 
 
 
 
 
 
 
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 reserve. 

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 specified in 
Statement of Financial Accounting Standards, No. 140, “Accounting for Transfers and Servicing of Financial Assets and 
Extinguishment of Liabilities” are met.  BOK Financial 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, residual interest and recourse obligations are carried at fair value with changes in fair value 
recognized in earnings as they occur.  A separate reserve is maintained as part of other liabilities for the Company’s credit risk on 
loans transferred subject to a recourse obligation. 

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, or current fair value. 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. 

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 are carried at fair value as permitted by Statement of Financial Accounting Standards No. 156, 
“Accounting for Servicing of Financial Assets” (“FAS 156”).  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.  Fair value is based on market quotes for similar 
servicing rights, which is a Level 2 input as defined by FAS 157.  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 Level 3 inputs as defined by FAS 157.  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 a reserve 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 reserve 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. 

  69

 
 
 
 
 
 
 
 
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. 

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 adopted Statement of Financial Accounting Standards No. 123R, “Share-Based Payments” (“FAS 123R”) as of 
January 1, 2006.  Adoption of FAS 123R did not significantly affect the Company’s financial statements.  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.  

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 of the options to be 
exercised.  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. 

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.  As described in FASB EITF Issue 99-19, Reporting Revenue Gross as a Principal versus Net as an Agent, 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.       

  70

  
 
 
 
 
 
 
 
 
 
Effect of Recently Issued Statements of Financial Accounting Standards 

Financial Accounting Standards Board 

Statement of Financial Accounting Standards No. 159, “The Fair Value Option for Financial Assets and Financial Liabilities” 
(“FAS 159”) 

The Company adopted FAS 159, effective January 1, 2008.  FAS 159 provides an option to measure eligible financial assets and 
financial liabilities at fair value.  Certain certificates of deposit that were either currently designated as hedged or had previously 
been designated as hedged, but no longer met the correlation requirements of Statement of Financial Accounting Standards No. 
133,  “Accounting for Derivative Instruments and Hedging Activities” (“FAS 133”), were designated as being reported at fair 
value.  Adoption of FAS 159 increased opening retained earnings for the first quarter of 2008 by $62 thousand.  Interest expense 
on certificates of deposit carried at fair value is based on the instruments’ contractual interest rates and outstanding principal 
balances.   

Statement of Financial Accounting Standards No. 141 (Revised), “Business Combinations” (“FAS 141R”) 

The FASB issued FAS 141R during 2007 to replace Statement of Financial Accounting Standards No. 141, Business 
Combinations.  FAS 141R applies to all transactions or other events in which an entity obtains control over one or more 
businesses, including combinations achieved without the transfer of consideration.  FAS 141R retains the fundamental 
requirement that all business combinations must be accounted for under the acquisition or purchase method of accounting.  All 
assets acquired, including identifiable intangible assets, liabilities assumed and any non-controlling interests must be recognized 
at the acquisition-date fair values.  Banks may no longer carry over the pre-acquisition allowance for loan losses.  Costs incurred 
to effect the acquisition and restructuring costs that the acquirer is expected but not obligated to incur must be recognized 
separately from the business combination.  Contingent assets and liabilities generally will be recognized at their acquisition-date 
fair values.  Changes in the recognized amounts of contingent assets and liabilities will be recognized in post acquisition-date 
earnings.  FAS 141R may have a significant effect on the Company’s financial statements for business combinations completed 
after January 1, 2009. 

Statement of Financial Accounting Standards No. 160,”Non-controlling Interest in Consolidated Financial Statements – An 
Amendment of ARB No. 51” (“FAS 160”) 

The FASB issued FAS 160 during 2007 to establish accounting and reporting standards for the non-controlling interest in a 
subsidiary and for the deconsolidation of a subsidiary.  FAS 160 clarifies that a non-controlling interest in a subsidiary, which is 
sometimes referred to as minority interest, is an ownership interest in the consolidated entity that should be reported as a 
component of equity in the consolidated financial statements.  Among other requirements, FAS 160 requires consolidated net 
income to be reported at amounts that included the amounts attributable to both the parent and the non-controlling interest.  It 
also requires disclosure, on the face of the consolidated income statement, of the amounts of consolidated net income attributable 
to the parent and to the non-controlling interest.  FAS 160, which will be adopted on January 1, 2009, is not expected to have a 
significant impact on the Company’s financial statements. 

Statement of Financial Accounting Standards No. 161, “Disclosure About Derivative Instruments and Hedging Activities, an 
Amendment of FASB Statement No. 133,” (“FAS 161”) 

FAS 161 amends and expands the disclosure requirements of FAS 133 to provide greater transparency about (i) how and why an 
entity uses derivative instruments, (ii) how derivative instruments and related hedge items are accounted for under SFAS 133 and 
its related interpretations, and (iii) how derivative instruments and related hedged items affect an entity’s financial position, 
results of operations and cash flows.  To meet those objectives, FAS 161 requires qualitative disclosures about objectives and 
strategies for using derivatives, quantitative disclosures about fair value amounts of gains and losses on derivative instruments 
and disclosures about credit-risk-related contingent features in derivative agreements.  FAS 161 is effective for the Company on 
January 1, 2009 and is not expected to have a significant impact on the Company’s financial statements. 

FASB Staff Position FIN 39-1, “Amendment of FASB Interpretation No. 39”(“FIN 39-1”) 

As of January 1, 2008, the Company adopted FASB Staff Position FIN 39-1, which permits offsetting of cash collateral against 
the fair value of derivative instruments executed with the same counterparty under a master netting agreement.  The total amount 
of derivative assets and liabilities as of December 31, 2008 was reduced by $217 million and $15 million, respectively, of cash 
collateral. 

  71

 
 
 
 
 
 
 
 
 
 
 
 
FASB Staff Position No. EITF 99-20-1, “Amendment to the Impairment and Interest Income Measurement Guidance of EITF 
Issue No. 99-20” (“FSP EITF 99-20-1”) 

FSP EITF 99-20-1 amends the impairment (and related interest income measurement) guidance for certain beneficial interests in 
securitized financial assets that are within the scope of EITF Issue No. 99-20, “Recognition of Interest Income and Impairment of 
Purchased Beneficial Interests and Beneficial Interests That Continue to Be Held by a Transferor in Securitized Financial Assets” 
(“EITF 99-20”).  This FSP eliminates the requirement that a holder’s best estimate of cash flows be based upon those that “a 
market participant” would use.  Instead, this FSP requires that an other-than-temporary impairment (“OTTI”) be recognized as a 
realized loss through earnings when it is “probable” there has been an adverse change in the holder’s estimated cash flows from 
the cash flows previously projected, which is consistent with the impairment model in Statement of Financial Accounting 
Standards No. 115, “Accounting for Certain Investments in Debt and Equity Securities” (“FAS 115”).  The FSP also reiterates 
and emphasizes the objective of an OTTI assessment and the related disclosure requirements in FAS 115 and other related 
guidance, including the requirement that the holder consider all available information when developing the estimate of future 
cash flows (i.e. past events, current conditions and expected events).  FSP 99-20-1 is effective for the Company as of December 
31, 2008 and did not have a significant impact on the Company’s financial statements. 

  72

 
 
(2) Acquisitions 

On June 18, 2007, BOK Financial paid $43 million in cash for all the outstanding stock of Colorado-based United Banks of 
Colorado, Inc.  United Banks had total assets of approximately $166 million, including loans of $94 million, and total deposits of 
$133 million and eleven banking locations in the Denver area.  Loans acquired from United Banks are subject to a guaranty by 
the sellers through an escrow fund held in trust by Colorado State Bank and Trust.  The Company will be reimbursed for up to 
$8.0 million of losses, including principal, interest and collection costs, on acquired loans in a three-year period after the 
acquisition date.  Accordingly, none of the purchase price was allocated to an allowance for loan losses.  At December 31, 2008, 
$5.3 million remains in the escrow fund to absorb future credit losses.  On September 21, 2007, operations of United Banks’ 
subsidiary, First United Bank, N.A. were combined with Colorado State Bank and Trust, N.A. through a purchase and 
assumption agreement.   

On May 31, 2007, BOK Financial paid $127 million in cash for all the outstanding stock of Texas-based Worth Bancorporation, 
Inc.  Worth had total assets of approximately $410 million, including net loans of $281 million, and total deposits of $369 million 
and five branches in the Fort Worth market.  None of Worth National Bank’s loans were impaired at the acquisition date.  
Therefore, none of the allowance for loan losses was allocated as a reduction of the principal balance of the acquired loans.   

Allocations of the purchase prices to net assets acquired are as follows (in thousands): 

Cash and cash equivalents 
Securities 
Loans 
Less reserve for loan losses 
Loans, net of reserve 
Premises and equipment 
Core deposit premium 
Other assets 
Total assets acquired 
Deposits 
Other borrowings 
Other liabilities 
Net assets acquired 
Less purchase price 
Goodwill 

United Banks of 
Colorado, Inc. 
$     36,249 
2,245 
93,810 
– 
93,810 
32,277 
5,039 
2,298 
171,918 
133,342 
2,138 
6,909 
29,529 
42,796 
$   13,267 

Worth 
Bancorporation, 
Inc. 
$     86,563 
22,676 
284,039 
(3,528) 
280,511 
6,214 
13,741 
15,029 
424,734 
369,343 
7,217 
6,285 
41,889 
127,067 
$   85,178 

Core deposit premiums are identifiable intangible assets initially recognized at estimated fair value.  Fair value is determined by 
projecting future cash flows that may be earned from investing the proceeds of the acquired deposits, less interest, servicing and 
other costs over the estimated lives of the acquired deposits.  The projected net cash flow is discounted to determine the current 
fair value.  The fair value measurement of core deposit premiums is based on Level 3 inputs as defined by FAS 157. 

During the first quarter of 2007, the Company paid approximately $425 thousand to acquire a charter for Bank of Kansas City in 
order to begin full-service banking operations in Missouri.  Previously, the Company’s full-service banking rights were restricted 
to Kansas City, Kansas.   

On November 6, 2006, BOK Financial paid a net amount of $365 thousand in cash to acquire a state banking charter.  The 
acquired state banking charter was subsequently converted to a national banking charter and the surviving entity renamed Bank 
of Kansas City, N.A.  This transaction was necessary to comply with state restrictions on forming a de novo bank in Kansas. 

The results of operations of these acquisitions would not have been significant to the Company’s consolidated results during the 
pre-acquisition periods of 2007 and 2006.  None of the intangible assets acquired are deductible for tax purposes. 

  73

 
 
 
 
 
 
 
 
 
(3) Securities 

Investment Securities 

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

2008 

2007 

December 31, 

Amortized 
Cost 

Fair 
Value 

Gross Unrealized 
Loss 
Gain 

  Amortized 

Cost 

Fair 
Value 

Gross Unrealized 
Loss 
Gain 

Municipal and other tax-exempt 
Other debt securities 

Total 

  $  235,791    $  239,178    $  3,736 
38 
  $  242,344    $  245,769    $  3,774 

6,553 

6,591 

  $  (349) 
– 
(349) 

  $ 

  $  242,274    $  243,061    $  1,439 
52 
  $  247,949    $  248,788    $  1,491 

5,675 

5,727 

  $  (651) 
(1) 
(652) 

  $ 

The amortized cost and fair values of investment securities at December 31, 2008, by contractual maturity, are as shown in the 
following table (dollars in thousands): 

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 

Less than 
One Year 

One to 
Five Years 

Six to 
Ten Years 

Over 
Ten Years 

Total 

$   70,795 
71,408 
5.24 

$  

4,852 
4,853 
3.66 

$   75,647 
76,261 
5.14 

$  128,171 
130,589 
5.44 

$ 

1,689 
1,726 
4.40 

$  129,860 
132,315 
5.42 

  $ 28,895 
29,469 
5.83 

  $ 7,930 
7,712 
6.50 

  $  235,791 
239,178 
5.46 

  $ 

– 
– 
– 

$   

12 
12 
– 

$    28,895 
29,469 
5.83 

$    7,942 
7,724 
6.49 

$ 

6,553 
6,591 
3.84 

$  242,344 
245,769 
5.42 

  $  242,344 
245,769 
5.42 

Weighted 
Average 
Maturity² 

2.77 

1.41 

2.74 

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. 

  74

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

2008 

2007 

December 31, 

Amortized 
Cost 

Fair 
Value 

Gross Unrealized 
Loss 
Gain 

Amortized 
Cost 

Fair 
Value 

Gross Unrealized 
Loss 
Gain 

U.S. Treasury 

Municipal and other tax-exempt 
Mortgage-backed securities: 

U. S. agencies 
Other 

Total mortgage-backed securities 
Other debt securities 
Equity securities and mutual funds 

Total 

  $ 

6,987 
19,537 

  $ 

7,126 
20,163 

  $    139    $ 
664 

–  
(38) 

  $ 

6,961 
26,478 

  $ 

7,088 
26,578 

  $    127    $ 
133 

–  
(33) 

4,900,895 
1,636,934 
6,537,829 
37 
158,033 
  $6,722,423 

4,972,928 
1,241,238 
6,214,166 
36 
149,960 
 $6,391,451 

84,073 
28 
84,101 
– 
2,485 

(12,040) 
(395,724) 
(407,764) 
(1) 
(10,558) 

  $87,389    $(418,361)   

3,838,219 
1,664,537 
5,502,756 
42 
151,689 
  $5,687,926 

3,817,939 
1,641,189 
5,459,128 
41 
157,705 
 $5,650,540 

16,120 
1,225 
17,345 
– 
6,016 

(36,400) 
(24,573) 
(60,973) 
(1) 
– 
  $23,621    $ (61,007) 

The amortized cost and fair values of available for sale securities at December 31, 2008, by contractual maturity, are as shown in 
the following table (dollars in thousands): 

Less than 
One Year 

One to 
Five Years 

Six to 
Ten Years 

Over 
Ten Years 

Total 

Weighted 
Average 
Maturity5 

U.S. Treasuries: 

Amortized cost 
Fair value 
Nominal yield 

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 

$ 

$ 

$   

$ 

– 
– 
– 

– 
– 
– 

– 
– 
– 

– 
– 
– 

$ 

$ 

$   

$   

  6,987 
7,126 
2.16 

  2,404 
2,486 
3.98 

37 
36 
6.62 

9,428 
9,648 
4.02 

$ 

$ 

$   

– 
– 
– 

– 
– 
– 

  16,117 
16,659 
4.11 

$    1,016 
1,018 
4.65 

$   

– 
– 
– 

$   

– 
– 
– 

$ 

  16,117 
16,659 
4.11 

$    1,016 
1,018 
4.65 

1.17 

7.42 

1.87 

5.77 

² 

³ 

$  

$  

$  

$  

6,987 
7,126 
2.16 

19,537 
20,163 
4.12 

37 
36 
6.62 

26,561 
27,325 
3.61 

$  6,537,829 
6,214,166 
4.78 

$ 

158,033 
149,960 
3.19 

$   6,722,423 
6,391,451 
4.74 

¹  Calculated on a taxable equivalent basis using a 39% effective tax rate. 
²  The average expected lives of mortgage-backed securities were 1.96  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. 

  75

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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) 

2008 

2007 

2006 

  $ 3,499,128 
21,128 
11,932 

  $  806,979 
2,862 
3,138

  $  646,944 
2,454 
2,302

2,736 

(96) 

53 

Gross unrealized losses excludes other-than-temporary charges of $5.3 million in 2008 and $8.6 million in 2007. 

Mortgage trading securities are mortgage-backed securities that have been designated as an economic hedge of the mortgage 
servicing rights and are separately identified on the balance sheet.  These securities are carried at fair value.  Changes in fair 
value are recognized in earnings as they occur.  As of December 31, 2008, mortgage trading securities are carried at their $399 
million fair value and had a net unrealized gain of $12.6 million. 

In addition to securities that have been reclassified as pledged to creditors, securities with an amortized cost of $5.0 billion and 
$4.1 billion at December 31, 2008 and 2007, 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 repledge 
these securities. 

Net unrealized losses on securities not recognized as an other-than-temporary impairment totaled $328 million at December 31, 
2008 compared with net unrealized losses of $37 million at December 31, 2007.  The aggregate gross amount of unrealized losses 
at December 31, 2008 totaled $419 million.  Management evaluated the securities with unrealized losses to determine if we 
believe that the losses were temporary.  This evaluation considered factors such as causes of the unrealized losses, support for 
debt securities provided by government guarantees or credit enhancements, ratings of the respective issuers and other factors to 
assess the prospects for recovery over various interest rate scenarios and time periods.  We also considered our intent and ability 
to either hold or sell the securities.   It is our belief, based on currently available information and our evaluation, that the 
unrealized losses in these securities were temporary.    

The Company’s portfolio of available for sale securities includes preferred stocks issued by seven financial institutions.  These 
stocks were originally purchased for $46 million and have a current carrying value of $32 million.  The carrying value of these 
stocks has been reduced by $14 million of other-than-temporary impairment charges, approximately $5 million and $9 million in 
2008 and 2007, respectively.  None of the institutions that issued these stocks are in default.  BOK Financial does not own any 
equity securities issued by Fannie Mae or Freddie Mac.  These preferred stocks have certain debt-like features such as a quarterly 
dividends based on LIBOR.  However, the issuers of these stocks have no obligation to redeem them.  The aggregate fair value of 
these preferred stocks decreased to $22 million at December 31, 2008 due to a significant widening of spreads to LIBOR related 
to current market disruptions.  We assessed the probability that spreads over LIBOR on these securities will narrow and fair 
values will increase over a 24-month to 36-month period beginning on the most recent date that fair value equaled our carrying 
value, June 30, 2008, and concluded that the impairment was temporary at December 31, 2008.   

FSP EITF 99-20-1  became effective for the Company as of December 31, 2008 and requires that an other-than-temporary 
impairment be recognized as a realized loss through earnings when it is “probable” there has been an adverse change in the 
holder’s estimated cash flows from the cash flows previously projected.  It also emphasizes the objective of an other-than-
temporary impairment assessment, including the requirement that the holder consider all available information when developing 
the estimate of future cash flows (i.e. past events, current conditions and expected events).  FSP EITF 99-20-1 did not have a 
significant impact on the Company’s financial statements. 

  76

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Temporarily Impaired Securities as of December 31, 2008 
(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 

 63 

$ 

  10,331 

$ 

147 

$ 

  7,914 

$ 

202 

  $ 

18,245 

  $ 

349  

Available for sale: 

Other debt securities 
Municipal and other tax-exempt 
Mortgage-backed securities: 

U. S. agencies 
Other 

Equity securities and mutual funds 

Total 

2 
4 

60 
114 
18 
    198 
    261 

– 
645 

– 
30 

36 
1,269 

1 
8 

36 
1,914 

1 
38 

9,778 
794,962 
83,721 
297,736 
  10,558 
22,039 
    1,115,382 
  104,087 
  $  1,125,713  $    104,234 

217,441 
936,077 
– 
   1,154,823 
$  1,162,737 

2,262 
312,003 
– 
314,274 
$   314,476 

1,012,403 
1,233,813 
22,039 
    2,270,205 
  $  2,288,450 

12,040 
395,724 
10,558 
  418,361 
  $  418,710 

Temporarily Impaired Securities as of December 31, 2007 
(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 

Available for sale: 

Other debt securities 
Municipal and other tax-exempt 
Mortgage-backed securities: 

U. S. agencies 
Other 

Total 

210 
1 
211 

2 
9 

$ 

$ 

1,996 
– 
1,996 

16 
2,925 

5 
– 
5 

– 
22 

$ 

  91,319  $ 
600 
91,919 

25 
304 

646 
1 
647 

1 
11 

  $ 

  $ 

93,315 
600 
93,915 

41 
3,229 

651  
1 
652 

1 
33 

282 
84 
    377 
    588 

290,657 
425,527 
719,125 
  $   721,121 

6,489 
4,150 
  10,661 
  $  10,666 

1,943,030 
1,003,557 

  2,946,916 
$ 3,038,835 

$ 

29,911 
20,423 
50,346 
50,993 

2,233,687 
1,429,084 
    3,666,041 
  $3,759,956 

36,400 
24,573 
61,007 
  $  61,659 

  77

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
(4) Derivatives 

The fair values of derivative contracts at December 31, 2008 were (in thousands): 

December 31, 2008 

Assets 

Liabilities 

December 31, 2007 

Assets 

Liabilities 

Customer Risk Management Programs: 

Interest rate contracts 

  Energy contracts 
  Cattle contracts 
  Foreign exchange contracts 
  CD options 
Fair value before cash collateral 
  Less:  cash collateral 

Total Customer Derivatives 

Interest Rate Risk Management Programs 

Total Derivative Contracts 

$  174,144 
423,044 
3,526 
51,767 
3,655 
656,136 
(217,082) 
439,054 

13,550 
$ 452,604 

$  180,008 
442,791 
3,529 
51,767 
3,655 
681,750 
(14,716) 
667,034 

– 
$  667,034 

$  73,946 
399,363 
3,374 
20,205 
4,325 
501,213 
– 
501,213 

1,233 
$ 502,446 

$  78,808 
406,740 
3,242 
20,205 
4,325 
513,320 
(172,163) 
341,157 

520 
$  341,677 

Customer Risk Management Programs 

BOK Financial offers programs that permit its customers to manage various risks, including fluctuations in energy, cattle and 
other agricultural products prices, interest rates and foreign exchange 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 selected counterparties to minimize the risk 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 BOK 
Financial as compensation for administrative costs, credit risks and profit. 

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. 

As of January 1, 2008, the Company adopted FSP FIN 39-1, which permits offsetting of cash collateral against the fair value of 
derivative instruments executed with the same counterparty under a master netting agreement.  The total amount of derivative 
assets and liabilities at December 31, 2008 were reduced by $217 million and $15 million, respectively, of cash collateral.    

Interest Rate Risk Management Programs 

BOK Financial uses interest rate swaps in managing its interest rate sensitivity.  Interest rate swaps are generally used to reduce 
overall asset sensitivity by converting specific fixed rate liabilities to floating rate based on LIBOR. 

The following table details interest rate swaps and, when applicable, the associated fair value of liabilities at December 31, 2008 
(dollars in thousands): 

Maturity 

Description 

Liabilities Carried at Fair Value 

Principal 

Amount 

Fair 
2
Value

Weighted Avg 

Fixed Rate 

(Paid) 

2009 
2010 
2011 

  Certificates of deposit 
  Certificates of deposit 
  Certificates of deposit 

  $ 587,339 
8,851 
27,294 

595,748 
9,024 
27,982 

(4.488)% 
(3.631) 
(3.983) 

  623,484 

632,754 

  Other derivatives 
Total 

– 
  $623,484 

– 
$632,754 

Interest Rate Swap 
Weighted Average 

Fixed Rate 

Floating Rate 

Received (Paid) Received (Paid) ¹ 

Fair Value 

4.487% 
3.657 
4.013 

(0.436)% 
(0.436) 
(0.436) 

(5.510) 

0.436 

$  11,762 
368 
1,758 

13,848 

(298)
$  13,550 

Notional 

Amount 

$ 625,000 
10,000 
30,000 

  665,000 

4,046 
$669,046 

¹  Floating rates are based on 30-day LIBOR, unless otherwise noted. 
2   Fair value of certificates of deposit are based upon brokered certificate of deposit market rates or Federal Home Loan Bank rates for 

advances with similar maturities. 

During 2008 and 2007, net interest revenue was decreased by $7.0 million and $6.8 million, respectively, from the settlement of 
amounts receivable or payable on interest rate swaps.   

As of January 1, 2008, the Company adopted FAS 159, which provides an option to measure eligible financial assets and 
financial liabilities at fair value.  Certain certificates of deposit that were either currently designated as hedged or had previously 

  78

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
been designated as hedged, but no longer met the correlation requirements of Statement of Financial Accounting Standards No. 
133 were designated as being reported at fair value when FAS 159 was first adopted.  In addition, certain certificates of deposit 
issued subsequent to the adoption of FAS 159 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.  The fair value of these fixed-rate certificates of deposit generally increases when interest rates 
fall.  Interest on these certificates of deposit based on contractual interest rates and outstanding principal balances is included in 
interest expense on the Consolidated Statement of Earnings.  Changes in the fair value of liabilities carried at fair value which is 
included in derivatives gains (losses), net on the Consolidated Statement of Earnings decreased net income by $10.2 million in 
2008.  Changes in the fair value of interest rate swaps, which is included in derivatives gains (losses), net on the Consolidated 
Statement of Earnings increased net income by $11.6 million in 2008. 

 (5) Loans 

Significant components of the loan portfolio are as follows (in thousands): 

2008 

2007 

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) 

$3,012,649 
847,816 
772,234 
805,136 
$5,437,835 

Foregone interest on nonaccrual loans 

  $4,264,108  $  134,846 
 137,279 
  27,387 
561 

$7,411,603 
2,701,248 
1,752,574 
1,010,581 
  $7,138,098  $  300,073  $12,876,006 

1,716,153 
952,953 
204,884 

$2,714,050    $4,004,553 
1,840,465 
762,203 
184,284 
$5,064,775    $6,791,505 

857,300 
757,130 
736,295 

$ 42,981  $6,761,584 
25,319  2,723,084 
15,272  1,534,605 
921,297 
$84,290  $11,940,570 

718 

$  19,123 

$ 

8,391 

  $ 

  $ 

5,575 

3,011 

Approximately 43% of the commercial and consumer loan portfolios and approximately 68% of the residential mortgage loan 
portfolio (excluding loans held for sale) are loans to businesses and individuals in Oklahoma. This geographic concentration 
subjects the loan portfolio to the general economic conditions within this area. 

Within the commercial loan classification, loans to energy-related businesses totaled $2.3 billion or 18% of total loans as of 
December 31, 2008. Other notable segments include services, $2.0 billion; wholesale/retail, $1.2 billion; healthcare, $777 
million; manufacturing, $498 million; and agriculture, $198 million, which includes $134 million of loans to the cattle industry.  
The services category consists almost entirely of loans with individual balances of less than $10 million. 

Approximately 25% of commercial real estate loans are secured by properties located in Oklahoma, primarily in the Tulsa and 
Oklahoma City metropolitan areas. An additional 28% of commercial real estate loans are secured by property located in Texas, 
primarily in the Dallas and Houston areas. The major components of these properties are multifamily residences, $317 million; 
construction and land development, $926 million; retail facilities, $371 million; and office buildings, $459 million.  

At December 31, 2008 and 2007, residential mortgage loans included $12.8 million and $9.9 million, respectively, and consumer 
loans included $254 thousand and $515 thousand, respectively, of loans with repayment terms that have been modified from the 
original contracts. 

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, 2008, outstanding commitments totaled $5.0 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, 2008, outstanding standby letters of credit totaled $599 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, 2008, 
outstanding commercial letters of credit totaled $18 million. 

  79

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The Company also has off-balance sheet credit risk for residential loans sold with full or partial recourse.  These loans consist of 
first lien, fixed rate residential mortgage loans originated under various community development programs and sold to U.S. 
government agencies.  These loans were underwritten to standards approved by the agencies, including full documentation.  
However, these loans have a higher risk of delinquency and losses given default than traditional residential mortgage loans.  A 
separate recourse reserve is maintained for this off-balance sheet credit risk.  At December 31, 2008, the principal balance of 
loans sold subject to recourse obligations totaled $391 million and the reserve for credit risk from these loans totaled $8.8 
million.  Losses incurred during 2008 and 2007 totaled $8.6 million and $1.1 million, respectively. 

Reserve  for Credit Losses 

The activity in the reserve for loan losses is summarized as follows (in thousands): 

2008 

2007 

2006 

Beginning balance 
Provision for loan losses 
Loans charged off 
Recoveries 
Addition due to acquisitions 
Ending balance 

$  126,677  $  109,497 
34,758 
(31,617) 
10,511 
3,528 
$  233,236  $  126,677 

208,280 
(122,211) 
20,490 
– 

$  103,876 
18,086 
(23,996) 
11,531 
– 
$  109,497 

The activity in the reserve for off-balance sheet credit losses is summarized as follows (in thousands): 

2008 

2007 

2006 

Beginning balance 
Provision for off-balance 
  sheet credit losses 

$  20,853  $ 20,890 

$  20,574

(5,687) 

(37) 

316

Ending balance 

$  15,166  $ 20,853 

$  20,890

Provision for credit losses 

$  202,593  $ 34,721 

$  18,402

Reserve  for Recourse Loan Losses 

The activity in the reserve for recourse loan losses is summarized as follows (in thousands): 

2008 

2007 

2006 

Beginning balance 
Provision for loan losses 
Loans charged off, net 
Ending balance 

$ 

$ 

3,560  $ 
8,577 
(3,370) 
8,767  $ 

2,473 
1,092 
(5) 
3,560 

$ 

$ 

1,861 
723 
(111) 
2,473 

Impaired Loans 

Investments in loans considered to be impaired under FAS 114 were as follows (in thousands): 

Investment in loans impaired 
under FAS 114 (all of 
which were on a  
nonaccrual basis) 

Loans with specific reserves 

for loss 

Specific reserve balance 
No specific related reserve 

for loss 

Average recorded investment 

in impaired loans 

December 31, 
2007 

2006 

2008 

$269,908 

$  74,085  $  22,586 

194,292 
28,532 

22,749 
4,425 

4,694 
1,670 

75,616 

51,336 

17,892 

179,808 

44,535 

26,435 

Approximately $76.6 million of losses on impaired loans with no related specific reserves at December 31, 2008 were 
charged off against the allowance for loan losses during 2008.  Interest income recognized on impaired loans during 2008, 
2007 and 2006 was not significant. 

  80

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(6) 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, 

2008 

2007 

$  71,306 
221,035 
55,488 
136,785 
484,614 
207,156 
$ 277,458 

$  68,496 
201,171 
44,499 
128,869 
443,035 
184,249 
$ 258,786 

Depreciation expense of premises and equipment was $28.4 million, $25.6 million and $23.7 million for the years ended 
December 31, 2008, 2007 and 2006, respectively.   

  81

 
 
 
 
 
 
 
 
 
 
(7) 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, 

2008 

2007 

$  109,417 
95,059 
14,358 

$  109,417 
88,263 
21,154 

Other identifiable intangible assets 
Less accumulated amortization 
Net other identifiable intangible assets 

16,791 
5,769 
11,022 

18,656 
6,770 
11,886 

Goodwill 
Less accumulated amortization 
Net goodwill 
Total intangible assets, net 

388,964 
53,135 
335,829 
$  361,209 

388,448 
53,135 
335,313 
$  368,353 

Expected amortization expense for intangible assets that will continue to be amortized (in thousands): 

Core 
Deposit 
Premiums 

Other 
Identifiable 
Intangible Assets 

2009 
2010 
2011 
2012 
2013 
Thereafter 

   $   5,606 
4,131 
2,227 
815 
485 
1,094 
  $ 14,358 

$  1,138 
1,163 
1,190 
1,218 
936 
5,377 
$  11,022 

Total 

  $  6,744 
5,294 
3,417 
2,033 
1,421 
6,471 
  $ 25,380 

The net amortized cost of identifiable intangible assets at December 31, 2008 is assigned to the Company’s subsidiary banks as follows (in 
thousands): 

Core deposit premiums: 

Bank of Texas 
Colorado State Bank and Trust 
Bank of Arizona 

Other identifiable intangible assets: 

Bank of Oklahoma 
Colorado State Bank and Trust 
Bank of Kansas City 

Goodwill: 

Bank of Oklahoma 
Bank of Texas 
Bank of Albuquerque 
Colorado State Bank and Trust 
Bank of Arizona 

$   8,621 
4,674 
1,063 
  $  14,358 

  $ 

6,257 
3,975 
790 
   $  11,022 

  $ 

8,173 
240,122 
15,273 
55,611 
16,650 
   $ 335,829 

The annual goodwill evaluation did not indicate impairment for any business unit in 2008, 2007 or 2006.  Economic conditions 
did not indicate that impairment existed for any identifiable intangible assets and therefore no impairment evaluation was 
performed. 

  82

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(8) Mortgage Banking Activities  

BOK Financial engages in mortgage banking activities through the BOk Mortgage Division of BOk. Residential mortgage loans 
held for sale totaled $129 million and $77 million, and outstanding mortgage loan commitments totaled $241 million and $53 
million at December 31, 2008 and 2007, respectively. 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 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. As of December 31, 2008, the unrealized loss on 
forward sales contracts used to manage the mortgage pipeline interest rate risk was approximately $2.1 million.  Gains on 
mortgage loans sold, including capitalized mortgage servicing rights, totaled $9.5 million in 2008, $5.2 million in 2007 and $10.5 
million in 2006. 

At December 31, 2008, BOK Financial owned the rights to service 58,023 mortgage loans with outstanding principal balances of 
$6.0 billion, including $793 million serviced for affiliates, and held related funds of $65 million for investors and borrowers. The 
weighted average interest rate and remaining term was 6.15% and 284 months, respectively. Mortgage loans sold with recourse 
totaled $391 million at December 31, 2008, and $13.2 million of loans sold with recourse were 90 days or more delinquent.  At 
December 31, 2007, BOK Financial owned the rights to service 58,227 mortgage loans with outstanding principal balances of 
$5.5 billion, including $614 million serviced for affiliates, and held related funds of $63 million for investors and borrowers. The 
weighted average interest rate and remaining term was 6.18% and 280 months, respectively. Mortgage loans sold with recourse 
totaled $393 million at December 31, 2007, and $3.7 million of loans sold with recourse were 90 days or more delinquent.  
Servicing revenue and late charges on loans serviced for others, which are included in mortgage banking revenue in the 
Consolidated Statements of Earnings totaled $17.6 million for 2008, $17.1 million for 2007 and $16.5 million for 2006.  

The portfolio of mortgage servicing rights exposes BOK Financial to interest rate risk. During periods of falling interest rates, 
mortgage loan prepayments increase, reducing the value of the mortgage servicing rights. See Note 1 for specific accounting 
policies for mortgage servicing rights. 

BOK Financial implemented FAS 156 in the first quarter of 2006.  An initial adjustment of the mortgage servicing rights to fair 
value of approximately $351 thousand, net of income taxes, was recognized as an increase to retained earnings in the same 
period.  Also upon implementation of FAS 156, certain securities designated as an economic hedge of mortgage servicing rights 
were transferred from the available for sale classification to trading.  Approximately $32 thousand was transferred from 
accumulated other comprehensive income to retained earnings for the net of tax effect of this reclassification. 

Activity in capitalized mortgage servicing rights and related valuation allowance during 2006, 2007 and 2008 are as follows (in 
thousands): 

Balance at December 31, 20051 

Adoption of FAS 156 effective January 1, 2006 

Additions, net 

Change in fair value due to loan runoff 

Change in fair value due to market changes 

Balance at December 31, 20061 

Additions, net 

Change in fair value due to loan runoff 

Change in fair value due to market changes 

Balance at December 31, 20071 

Additions, net 

Change in fair value due to loan runoff 

Change in fair value due to market changes 

Capitalized Mortgage Servicing Rights 
Purchased  Originated 

Total 

Valuation 
Allowance 

Net 

$  8,606 

$ 52,905 

$ 61,511 

$   (7,414) 

$ 54,097 

(117) 

(6,747) 

(6,864) 

7,414 

6,774 

11,917 

18,691 

(2,448) 

(7,953) 

(10,401) 

(2) 

3,011 

3,009 

– 

– 

– 

550 

18,691 

(10,401) 

3,009 

$  12,813      $  53,133       $  65,946 

 $          –  

$    65,946   

3,628 

14,080 

(2,478) 

(57) 

(8,274) 

(2,836) 

17,708 

(10,752) 

(2,893) 

– 

– 

– 

17,708 

(10,752) 

(2,893) 

$    13,906      $  56,103 

$  70,009 

 $   

  –   

$    70,009   

– 

19,220 

(2,286) 

(9,676) 

(5,267) 

(29,248) 

19,220 

(11,962) 

(34,515) 

– 

– 

– 

19,220 

(11,962) 

(34,515) 

Balance at December 31, 20081 
$    42,752   
1  Excludes approximately $0.2 million, $0.7 million and $0.8 million at December 31, 2008, 2007 and 2006, respectively, of loan 

$      6,353    $   36,399       $  42,752 

  –   

 $   

servicing rights on mortgage loans originated prior to the adoption of FAS 122. 

  83

 
 
 
 
 
 
 
 
 
 
 
Fair value is determined by discounting the projected net cash flows. Significant assumptions 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 at December 31, 2008 was 9.26%. 

Prepayment rate – Annual prepayment estimates ranging from 8.3% to 38% based upon loan interest rate, original term and 

loan type. 

Loan servicing costs – $43 to $73 annually per loan based upon loan type. 

Escrow earnings rate – Indexed to rates paid on deposit accounts with a comparable average life. The escrow earnings rate at 

December 31, 2008 was 2.08%. 

The effect of a 50 basis point decrease in mortgage interest rates on all significant assumptions is expected to decrease the fair 
value of mortgage servicing rights by $11 million. 

Stratification of the mortgage loan-servicing portfolio, outstanding principal of loans serviced, and related hedging information 
by interest rate at December 31, 2008 follows (in thousands): 

< 5.51% 

5.51% - 6.50% 

6.51% - 7.50% 

=> 7.51% 

Total 

Fair value 

  $ 

9,638 

  $ 

25,866 

$ 

5,847 

$ 

1,401 

  $ 

42,752 

Outstanding principal of loans serviced1 

  $  951,800 

  $  2,983,300 

$  1,049,200 

$  172,700 

  $  5,157,000 

1  Excludes outstanding principal of $793 million for loans serviced for affiliates and $34 million of mortgage loans for which there are 

no capitalized mortgage servicing rights. 

(9) Deposits 

Interest expense on deposits is summarized as follows (in thousands): 
2008 

2006 

2007 

Transaction deposits 
Savings 
Time: 

Certificates of deposits 
under $100,000 
Certificates of deposits 
$100,000 and over 

Other time deposits 

Total time 
Total 

  $ 121,403    $ 194,617    $ 148,986 
1,408 

1,499 

676 

70,806 

88,465 

69,844 

78,965 
17,074 
166,845 

100,916 
15,754 
186,514 
  $ 288,924    $ 412,746    $ 336,908 

110,791 
17,374 
216,630 

The aggregate amounts of time deposits in denominations of $100,000 or more at December 31, 2008 and 2007 were $3.1 billion 
and $2.4  billion, respectively. 

Time deposit maturities are as follows: 2009 – $3.7 billion, 2010 – $191 million, 2011 – $194 million, 2012 – $279 million, 2013 
– $704 million and $117 million thereafter.  At December 31, 2008, the Company had $1.0 billion in fixed rate, brokered 
certificates of deposits.  The weighted-average interest rate paid on these certificates is 3.55%.   

Interest expense on time deposits during 2008 and 2007 was reduced by the net accrued settlement from interest rate swaps of 
$6.9 million and $2.6 million, respectively.  

The aggregate amount of overdrawn transaction deposits that have been reclassified as loan balances was $35 million at 
December 31, 2008 and $91 million at December 31, 2007. 

  84

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(10) Other Borrowings 

Information relating to other borrowings is summarized as follows (dollars in thousands): 

2008 

Maximum 
Outstanding 
At Any 

December 31 

2007 

Maximum 
Outstanding 
At Any 

2006 

Maximum 
Outstanding 
At Any 

Balance 

Rate  Month End 

Balance 

Rate  Month End 

Balance 

Rate  Month End 

Parent Company: 

Revolving, unsecured line    $ 

Subsidiary Banks: 

50,000    3.78%  $  50,000 

  $ 

50,000   5.42%  $  50,000   $ 

–      –%   $ 

– 

Funds purchased and 

repurchase agreements 
Federal Home Loan Bank 

advances 

Federal Reserve advances 
Subordinated debentures 
Other 

Total subsidiary banks 

Total other borrowings 

3,025,399    0.72 

3,686,019 

3,225,131   4.30

3,225,131 

2,348,516   5.52

2,688,175 

991,401    1.76 
450,000    0.24 
398,407    5.51 
30,653    2.62 
4,895,860    1.30 
  $  4,945,860    1.32 

2,391,618 
450,000 
398,407 
44,227 

938,168   4.65
– 
–
398,273   5.91
39,396   4.10
4,600,968   4.52
  $  4,650,968   4.53

938,168 
– 
548,187 
43,985 

566,017   5.36
– 
– 
297,800   6.91
27,714   4.00
3,240,047   5.63
   $  3,240,047   5.63

841,159 
– 
300,230 
36,534 

Aggregate annual principal repayments of long-term debt at December 31, 2008 are as follows (in thousands): 

2009 
2010 
2011 
2012 
2013 
Thereafter 
Total 

Parent 
Company 

Subsidiary 
Banks 

  $ 

– 
50,000 
– 
– 
– 
– 
  $  50,000 

  $ 4,226,052 
250,475 
2,372 
1,418 
525 
415,018 
  $ 4,895,860 

Funds purchased generally mature within one to ninety days from the transaction date. At December 31, 2008, securities sold 
under agreements to repurchase totaled $1.9 billion with related accrued interest payable of $4.5 million.  

Additional information relating to repurchase agreements at December 31, 2008 is as follows (dollars in thousands): 

Security Sold/Maturity 

U.S. Agency Securities: 
  Overnight1 
  Long-term 

Total Agency Securities 

Amortized 
Cost 

Market 
Value 

Repurchase 
Liability1 

Average 
Rate 

  $ 1,364,651 
573,722 
  $ 1,938,373 

  $  1,233,500 
590,760 
  $  1,824,260 

  $  975,131 
470,429 
  $ 1,445,560 

0.34% 
2.64 
1.09% 

1 BOK Financial maintains control over the securities underlying overnight repurchase agreements and generally transfers control over 
securities underlying longer-term dealer repurchase agreements to the respective counterparty. 

Borrowings from the Federal Home Loan Bank are used for funding purposes. In accordance with policies of the Federal Home 
Loan Bank, 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 Bank has 
issued letters of credit totaling $394 million to secure BOK Financial’s obligations to depositors of public funds.  The unused 
credit available to BOK Financial at December 31, 2008 pursuant to the Federal Home Loan Bank’s collateral policies is $2.3 
billion. 

The Company elected to participate in the TLGP, which expanded insurance coverage to certain qualifying debt issued by 
eligible financial institutions.  In general, senior unsecured debt newly issued on or before June 30, 2009 will be fully protected 
by the FDIC through the earlier of the maturity of the debt or June 30, 2012.  Collectively, our subsidiary banks may issue up to 
$1.8 billion of TLGP protected debt.  No TLGP protected debt is currently outstanding. 

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 

  85

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
  
 
   
 
 
 
  
 
   
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
either 28 or 84 days and are secured by a pledge of eligible collateral.   Funds borrowed under this program totaled $450 million 
at December 31, 2008. 

On July 21, 2008, the Company entered into a $188 million, unsecured revolving credit agreement with George B. Kaiser, its 
Chairman and principal shareholder.  Interest on the outstanding balance is based on one-month LIBOR plus 125 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 
25 basis points.  This agreement has no restrictive covenants and matures in December of 2010.  At December 31, 2008, the 
outstanding balance under this credit agreement was $50 million.  Subsequent to December 31, 2008, the Company fully repaid 
the amounts owed under this credit agreement. 

As of December 31, 2007, BOK Financial had a $188 million unsecured revolving line of credit with certain commercial banks 
with an outstanding principal balance of $50 million.  In 2008, that balance was repaid and the agreement was terminated at the 
Company’s request. 

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, BOk 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. 

  86

 
 
 
 
 
    
  
(11) 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: 

Valuation adjustments 
Mortgage servicing rights 
Lease financing 
Pension contributions in excess 

of book expense 

Other 

Total deferred tax liabilities 

Deferred tax assets: 

Available for sale securities 

mark-to-market 

Stock-based compensation 
Credit loss reserves 
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, 
2008 

2007 

  $ 33,800 
29,500 
19,800 

  $  30,600 
25,900 
16,600 

–  
2,300 
85,400 

4,900  
3,700 
81,700 

126,300 
6,500 
94,200 
23,900 
22,300 
11,300 

1,200 
18,800 
304,500 

14,600 
5,700 
56,000 
9,400 
26,000 
10,000 

– 
12,500 
134,200 

  $219,100 

  $ 52,500 

The significant components of the provision for income taxes attributable to continuing operations for BOK Financial are shown 
below (in thousands): 

Years ended December 31, 
2007 

2008 

2006 

Current: 

Federal 
State 
Total current 

Deferred: 
Federal 
State 
Total deferred 

Total income tax 

  $  108,879 
7,377 
116,256 

  $  119,025 
10,179 
129,204 

  $  113,554 
8,518 
122,072 

(47,685) 
(3,662) 
(51,347) 
  $  64,909 

(12,935) 
(508) 
(13,443) 
  $  115,761 

(7,001)
(446)
(7,447)
  $  114,625 

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 
Intangible amortization 
Utilization of tax credits 
Bank-owned life insurance 
Charitable contribution 
Reduction of tax accrual 
Other, net 
Total 

Years ended December 31, 
2006 
2007 
2008 

  $76,353 

(4,173) 

  $116,698   $114,660
(3,529)

(4,204)

1,278 
– 
(1,234) 
(3,555) 
(2,852) 
(2,437) 
1,529 

4,805 
82 
(1,040)
(830)
– 
(2,200)
2,677 
  $ 64,909    $115,761   $114,625

5,783 
– 
(1,218)
(3,411)
– 
– 
2,113 

  87

 
 
 
 
 
 
 
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Due to the favorable resolution of certain tax issues for the tax periods ended December 31, 2002 and December 31, 2004, BOK 
Financial reduced its tax accrual by $2.2 million and $2.4 million in 2006 and 2008, respectively, which was credited against 
current income tax expense. 

Percent of pretax income: 
Federal statutory rate 
Tax-exempt revenue 
Effect of state income taxes,  

net of federal benefit 
Bank-owned life insurance 
Charitable contribution 
Reduction of tax accrual 
Other, net  
Total 

Years ended December 31, 
2006 
2007 
2008 

35% 
(2) 

1 
(2) 
(1) 
(1) 
– 
 30%  

35% 
(1) 

1 
(1) 
– 
– 
1 
 35%  

35% 
(1) 

1 
– 
– 
(1) 
1 
 35%  

BOK Financial adopted the provisions of FASB Interpretation No. 48, “Accounting for Uncertainty in Income Taxes” (“FIN 
48”), on January 1, 2007.  As a result of the implementation of FIN 48, BOK Financial recognized a $609 thousand increase in 
the liability for unrecognized tax benefits, which was accounted for as a reduction to the January 1, 2007 balance of retained 
earnings. 

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands): 

Balance as of December 31, 2007  

Additions for tax for current year 

positions 

Settlements during the period 
Lapses of applicable statute of 

limitations 

Balance as of December 31, 2008 

2008 
$ 13,200 

2007 
$ 12,639 

3,800 
(100) 

4,100 
– 

(3,700) 
$ 13,200 

(3,539) 
$  13,200 

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.  During the 
years ended December 31, 2008 and 2007, the Company recognized $1.5 million and $1.0 million, respectively, in interest and 
penalties.  The Company had approximately $3.0 million and $2.3 million for the payment of interest and penalties accrued as of 
December 31, 2008 and 2007, 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.   

One of our acquired entities is currently under examination by the Internal Revenue Service (“IRS”) for the year ending May 31, 
2007 and the related carryback period.  Refunds claimed in the carryback period total $3.5 million.  The ultimate resolution is 
unlikely to have a material impact on the financial statements.  Also during 2008, the IRS exam for the year ended December 31, 
2005 for the same acquired entity was closed with no adjustments. 

  88

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(12) 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 / prepaid pension costs 

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, 

2008 

2007 

  $  46,183 
– 
2,685 
(1,205) 
(8,564) 
  $  39,099 

  $  58,220 
– 
2,823 
(6,474) 
(8,386) 
  $  46,183 

  $  58,089 
(14,224) 
– 
(8,564) 
  $  35,301 

  $  63,038 
3,437 
– 
(8,386) 
  $  58,089 

  $  (3,798) 

  $ 11,906 

  $ 

  $ 

– 
2,685 
(3,910) 
496 
(729) 

  $ 

  $ 

– 
2,823 
(4,165) 
958 
(384) 

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 

6.50% 
7.00% 
N/A 

6.00% 
7.00% 
N/A 

As of December 31, 2008, expected future benefit payments related to the Pension Plan were as follows (in thousands): 

2009 
2010 
2011 
2012 
2013 
2014 through 2017 

  $  3,142 
  3,531 
  3,662 
  4,329 
  3,705 
  18,770 
  $37,139 

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 5.39%.  As of December 31, 2008, the expected return on plan assets for 2009 is 5.25%  
The maximum allowed and minimum required Pension Plan contributions for 2008 were $6.6 million and $0, respectively.  No 
contributions were made for 2007 or 2008.  We expect approximately $2.0 million of net pension costs currently in accumulated 
other comprehensive income to be recognized as net periodic pension cost in 2009. 

Employee contributions to the Thrift Plan eligible for Company matching equal 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 service to 200% 
for employees with 15 or more years of service.  Additionally, a maximum Company-provided, non-elective annual contribution 
of $750 is made for employees whose annual base compensation is less than $40,000.   

  89

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 $12.1 million, $11.6 million and $9.1 million for 2008, 2007 and 2006, respectively. 

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, 2008. 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 $83.2 million in 2008, $71.4 million in 2007 and $65.2 million in 2006 for incentive compensation plans. 

(13) 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 consist primarily of 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 may be granted to the Chief Executive Officer and other senior executives 
of the Company.  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. 

The following table presents options outstanding during 2006, 2007 and 2008 under these plans: 

Options outstanding at 
December 31, 2005 

Options awarded 
Options exercised 
Options forfeited 
Options expired 
Options outstanding at 
December 31, 2006 

Options awarded 
Options exercised 
Options forfeited 
Options expired 
Options outstanding at 
December 31, 2007 

Options awarded 
Options exercised 
Options forfeited 
Options expired 
Options outstanding at 
December 31, 2008 

Options vested at 

December 31, 2008 

Weighted- 
Average 
Exercise 
Price 

$34.03 
48.30 
29.50 
36.65 
37.35 

$38.63 
54.18 
32.41 
43.74 
45.80 

$43.50 
47.71 
33.05 
47.96 
49.91 

Number 

3,488,712 
900,119 
(790,981)
(100,149)
(1,076)

3,496,625 
956,475 
(703,833)
(429,848)
(1,249)

3,318,170 
1,098,172 
(498,700)
(271,250)
(70,924)

3,575,468 

$45.77 

846,387 

$39.62 

  90

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The following table summarizes information concerning currently outstanding and vested stock options: 

Options Outstanding 

Options Vested 

Weighted  Weighted
Average 
Average 
Exercise 
Remaining 
Price 
Contractual 
Outstanding  Life (years) 

Number 

Weighted
Average
Number Exercise
Price 
Vested 

100,818 
315,641 
310,730 
107,887 
577,139 
509,099 
805,163 
107,887 
579,206 
161,898 

1.24 
2.30 
3.00 
2.00 
3.50 
4.00 
6.00 
0.12 
5.00 
1.00 

17.73 
29.90 
37.74 
41.73 
47.32 
47.06 
48.46 
53.51 
54.33 
53.57 

17.73 
100,818
29.35 
196,747
37.74 
104,714
– 
– 
212,325
47.31 
72,424   47.08 

– 

– 

107,887   53.51 
51,472   54.33 

– 

– 

Range of 
Exercise 
Prices 

  $17.37 –  19.02 
    28.27 –  30.87 

 37.74 
38.91 –  44.30 
    45.15 –  47.34 
    47.05 –  48.53 

48.46 

    50.61 –  54.00 
           54.33 
    52.54 –  54.28 

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:  

2008 

2007 

2006 

Average risk-free interest rate 
Dividend yield 
Volatility factors 
Weighted average expected life 
Weighted average fair value 

3.50% 
1.70% 
.147 
4.9 years 
$7.09 

4.68% 
1.10% 
.143 
4.9 years 
$9.91 

4.42% 
0.90% 
.161 
4.9 years 
$9.56 

Compensation cost of stock options granted that may be recognized as compensation expense in future years totaled $11.0 
million at December 31, 2008.  Subject to adjustments for forfeitures, we expect to recognize compensation expense for current 
outstanding options of $4.6 million in 2009, $3.0 million in 2010, $1.7 million in 2011, $970 thousand in 2012, $490 thousand in 
2013 and $170 thousand thereafter.  Stock option expense for the years ended December 31, 2008, 2007 and 2006 was $7.8 
million, $6.3 million and $6.4 million, respectively.  The intrinsic value of options exercised during the years ended December 
31, 2008, 2007 and 2006 was $11.8 million, $14.9 million and $16.6 million, respectively.  The aggregate intrinsic value of 
options outstanding as of December 31, 2008 and 2007 was $19.2 million and $27.2 million, respectively.  The aggregate 
intrinsic value of options exercisable as of December 31, 2008 and 2007 was $656 thousand and $15.1 million, respectively.   

BOK Financial also issues non-vested common shares under the various stock-based compensation plans.  At December 31, 
2008, a total of 137,958 non-vested common shares have been awarded, including 56,853 awarded in 2008.  The weighted 
average grant date fair value of non-vested shares awarded in 2008 was $47.62 per share.  Unrecognized compensation cost of 
non-vested shares totaled $3.4 million at December 31, 2008.  Subject to adjustment for forfeitures, we expect to recognize 
compensation expense of $1.1 million in 2009, $950 thousand in 2010, $750 thousand in 2011, $520 thousand in 2012 and $50 
thousand in 2013. 

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, 2008, the 
recorded obligation for liability awards was $1.2 million.  Compensation cost of liability awards was a benefit of $471 thousand 
in 2008, expense of $506 thousand in 2007 and expense of $4.7 million in 2006.   

  91

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
       
 
 
 
 
 
 
 
 
 
 
 
 
During January 2009, BOK Financial awarded the following stock-based compensation: 

Number 

Exercise 
Price 

Fair Value /
Award 

Equity awards: 
Stock options 
Nonvested stock 
Total equity awards 
Total stock-based awards 

779,541 
139,839 
919,380 
919,380 

$36.65 
– 

$  5.38 
36.65 

The aggregate compensation cost of these awards totaled approximately $9.3 million.  This cost will be recognized over the 
vesting periods, subject to adjustments for forfeitures.  None of the stock-based compensation awards in January 2009 are subject 
to deferred compensation plans. 

(14) 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 non-accrual or impaired related party loans outstanding at December 
31, 2008 or 2007.  Activity in loans to related parties is summarized as follows (in thousands): 

Beginning balance 

Advances 
Payments 
Charge-offs2 
Adjustments1 
Ending balance 

2008 

2007 

  $  252,051 
734,553 
(704,433) 
(26,000) 
(49,031) 
  $  207,140 

  $  160,901 
700,742 
(700,488) 
– 
90,896 
  $  252,051 

1  Adjustments generally consist of changes in status as a related party.  In 2008, adjustments include $48 million of loans to SemGroup, 
L.P., which ceased to be a related party upon resignation of Thomas L. Kivisto, its principal owner, from the Company’s Board of 
Directors.  These loans remain outstanding and are non-performing. 

2  In 2008, the Company charged off $26 million of the balance due from SemGroup, L.P. 

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.   

On July 21, 2008, the Company entered into a $188 million, unsecured revolving credit agreement with George B. Kaiser, its 
Chairman and principal shareholder.  The revolving credit agreement with Mr. Kaiser replaced a similar credit agreement with 
certain commercial banks that was terminated at the Company’s request.  The Company was in compliance with all terms of that 
credit agreement when it was terminated.  Interest on the outstanding balance due to Mr. Kaiser is based on one-month LIBOR 
plus 125 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 25 basis points.  This agreement has no restrictive covenants and matures in December of 2010.  At 
December 31, 2008, the outstanding balance under this credit agreement was $50 million.  Subsequent to December 31, 2008, the 
Company fully repaid the amounts owed under this credit agreement. 

The Company also rents office space in facilities owned by affiliates of Mr. Kaiser.  Lease payments for 2008 totaled $1.1 
million. 

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. 

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 98% of the Funds’ assets of $3.8 billion are held for the Company's clients.    A Company executive officer 
serves on the Funds' board of trustees and 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. 

  92

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(15) Commitments and Contingent Liabilities 

In September 2006, BISYS settled the SEC's two-year  investigation of BISYS Fund Services Ohio, Inc. ("BISYS") marketing 
assistance  agreements with 27 different families of mutual funds,  including a BISYS  marketing  arrangement  with AXIA, 
which had been  terminated  effective  January 1, 2004.  In the SEC  settlement, BISYS  consented  to an  order  in  which  the 
SEC  determined  that  BISYS  had "willfully  aided and  abetted and  caused"  the 27  investment  advisors to (i) violate  
provisions  of the  Investment  Advisors  Act  of  1940  that  prohibit fraudulent  conduct;  (ii) violate  provisions of the 1940 Act 
that prohibit the making of any untrue  statement of a material fact in a  registration  statement filed by the mutual fund with the 
SEC, and (iii) violate  provisions of the 1940 Act that require the disclosure and inclusion of all  distribution  arrangements and 
expenses in the fund's 12b-1 fee plan ("the SEC BYSIS Order").  AXIA was one of the 27 advisors and the AP Funds one of the 
27 mutual fund  families to which the SEC  referred in its BISYS  Order.  On October 10,  2006,  the  Examinations Division of 
the  Securities  and Exchange  Commission  (the "SEC")  conducted an examination of AXIA. The  examination  was concluded 
in July 2007 with no action taken by the  Examinations  Division.  In August  2007,  AXIA settled all claims relating to the 
BISYS marketing  arrangements with the AP Funds for $2.2 million and the AP Funds regard the matter as fully  concluded.  The 
settlement with the AP Funds is not binding on the SEC. 

On April 7, 2008,  AXIA and its parent,  BOK,  received a Wells  notice from the regional  office  of  the  SEC in Los  Angeles  
indicating  that  the  staff  is considering  recommending  that the SEC bring a civil injunctive  action against AXIA and BOK for  
violations  of Section  17(a) of the  Securities  Act of 1955, Section 10(b) of the Securities Exchange Act of 1934, Sections 
206(1) and (2) of the  Investment  Advisors  Act of 1940,  and  Sections  12(b)  and  34(b) of the Investment Company Act of 
1940. BOK and AXIA have been cooperating fully with the SEC in connection  with these matters that arose prior to December 
31, 2003.  BOK and AXIA are not bound by the SEC  BISYS  Order  and  disagree  with the SEC position as it relates to BOK 
and AXIA. On May 27, 2008,  BOK and AXIA responded to the Wells notice  denying the SEC  position.  On June 26, 2008,  
BOK and AXIA representatives  met with SEC Staff at which time the SEC Staff advised that the Staff had not determined  
whether to recommend any action to the Commission.  On September  25,  2008,  The SEC Staff  requested,  and BOK and 
AXIA  agreed to, a tolling agreement  for any action the SEC might take until  January  15,  2009. On December 22, 2008, the 
tolling agreement was extended to March 2, 2009. On February 11, AXIA representatives met again with SEC Staff.  Nothing 
further has occurred as of the time of this filing. 

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 $2.5 million at December 31, 2008.  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 $2.5 million receivable for its proportionate 
share of this escrow account. 

BOK Financial received 410,562 Visa Class B shares as part of Visa’s initial public offering in the first quarter of 2008.  A 
partial redemption of Class B shares was completed and the Company received $6.8 million in cash in exchange for 158,725 
Class B shares.  The remaining 251,837 Class B shares 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 
0.6296 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.  Therefore, under currently issued accounting guidance, no value has 
been currently assigned to the Class B shares and no value may be assigned until the Class B shares are converted into a known 
number of Class A shares. 

At December 31, 2008, Cavanal Hill Funds’ assets included $1.6 billion of U.S. Treasury, $1.4 billion of cash management and 
$881 million of tax-free money market 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, 2008.  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. 

BOk is obligated under a long-term lease for its bank premises owned by Williams Companies, Inc. and located in downtown 
Tulsa. The 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 $213 thousand in years 2009 and 2010. Net rent expense on 
this lease was $3.0 million in 2008, 2007 and 2006. Total rent expense for BOK Financial was $20.3 million in 2008, $18.8 
million in 2007, and $16.5 million in 2006. 

At December 31, 2008, future minimum lease payments for equipment and premises under operating leases were as follows:  
$17.4 million in 2009, $17.2 million in 2010, $14.6 million in 2011, $11.9 million in 2012, $9.4 million in 2013, and a total of 
$102.7 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 
approximately $373 million and $315 million at December 31, 2008 and 2007, respectively. 

  93

 
 
 
 
 
 
 
 
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 $1.5 million at December 31, 2008. 

At December 31, 2008, the Company has funded $42.6 million and has commitments to fund an additional $13.9 million in 
various unrelated alternative investments.  Alternative investments generally consist of 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. 

BOKF Equity, LLC, indirectly a wholly-owned subsidiary of BOK Financial, is the general partner in two private equity funds 
(“the Funds”).  The Funds provide alternative investment opportunities to certain customers, some of which are related parties, 
through limited partnerships.  The Funds generally invest in distressed assets, asset buy-out or venture capital limited 
partnerships or limited liability companies.  The general partner has contingent obligations through the Funds to make additional 
investments totaling $17.5 million as of December 31, 2008.  Substantially all of those contingent obligations are offset by 
commitments of BOK Financial customers. 

During the third quarter of 2007, Bank of Oklahoma agreed to guarantee rents totaling $28.4 million over 10 years to the City of 
Tulsa (“City”) as owner of a building immediately adjacent to the Bank’s main office.  These rents are due for space currently 
rented by third-party tenants in the building.  In return for this guarantee, Bank of Oklahoma will receive 80% of net rent as 
defined in an agreement with the City over the next 10 years from currently vacant space in the same building.  The maximum  
amount that Bank of Oklahoma may receive under this agreement is $4.5 million.  The fair value of this agreement at inception is 
zero and no asset or liability is currently recognized in the Company’s financial statements. 

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. 

 (16) 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 2008, 2007 or 2006. 

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 $59 million, $50 million and $37 million in 2008, 2007 and 2006, respectively.  
Previously, annual dividends were paid in shares of common stock.   

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. Pursuant to the most restrictive of the regulations at 
December 31, 2008, BOK Financial’s subsidiary banks could declare dividends up to $171 million without prior regulatory 
approval.  Management has developed and the Board of Directors has approved an internal capital policy that is more restrictive 
than the regulatory capital standards.  As of December 31, 2008, the subsidiary banks could declare dividends of up to $119 
million under this policy.  The subsidiary banks declared and paid dividends of $76 million, $254 million and $81 million in 
2008, 2007, and 2006, respectively.   

Loans to a single affiliate may not exceed 10% and loans to all affiliates may not exceed 20% of unimpaired capital and surplus, 
as defined. Additionally, loans to affiliates must be fully secured.  As of December 31, 2008 and 2007, outstanding loans and 
equity investments totaled $45 million and $22 million, respectively, and outstanding letters of credit totaled $18 million and $17 
million, respectively.  Total loan commitments to affiliates at December 31, 2008 were $199 million. 

  94

 
 
 
 
 
 
 
 
 
 
 
 
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, its 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 reserves for credit losses, subject to certain limitations. All 
of BOK Financial’s banking subsidiaries exceeded the regulatory definition of well capitalized. 

(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, 

2008 

2007 

Amount 

Ratio 

Amount 

Ratio 

  $ 

  $ 

  $ 

2,356,948 
1,584,353 
440,303 
127,910 
34,395 
87,370 
25,136 
16,057 

1,728,926 
1,032,120 
390,444 
118,588 
30,842 
80,232 
22,133 
15,424 

1,728,926 
1,032,120 
390,444 
118,588 
30,842 
80,232 
22,133 
15,424 

  $ 

  $ 

  $ 

12.81% 
12.22 
11.07 
17.20 
12.18 
12.41 
10.65 
28.42 

9.40% 
7.96 
9.82 
15.94 
10.92 
11.39 
9.37 
27.30 

7.89% 
6.46 
9.30 
7.22 
10.80 
6.90 
9.55 
23.88 

2,167,763 
1,432,405 
380,221 
112,693 
28,058 
88,603 
21,715 
17,354 

1,621,583 
937,477 
349,793 
105,089 
25,198 
85,542 
19,644 
17,252 

1,621,583 
937,477 
349,793 
105,089 
25,198 
85,542 
19,644 
17,252 

12.54% 
11.95 
10.98 
16.35 
11.31 
15.58 
12.07 
47.21 

9.38% 
7.82 
10.10 
15.24 
10.16 
15.04 
10.92 
46.93 

8.20% 
6.60 
9.35 
7.93 
10.05 
6.88 
10.44 
30.92 

  95

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 were recognized 
as required by Statement of Financial Accounting Standards Board No. 158, “Employers’ Accounting for Defined Benefit 
Pension and Other Postretirement Plans – an amendment of FASB Statements No. 87, 88, 106, and 132(R)” (“FAS 158”), and 
will be reclassified into income as Pension Plan costs. 

  Balance at December 31, 2005 

Unrealized gains on securities 
Unrealized gains on cash flow hedges 
Unrealized losses on employee benefit plans 
Tax benefit  (expense) on unrealized gains (losses) 
Reclassification adjustment for losses 
realized and included in net income 
Reclassification adjustment for tax benefit 

on realized losses 
  Balance at December 31, 2006 

Unrealized gains on securities 
Unrealized gains on cash flow hedges 
Unrealized gains on employee benefit plans 
Tax benefit (expense) on unrealized gains (losses) 
Reclassification adjustment for losses 
realized and included in net income 
Reclassification adjustment for tax benefit 

on realized losses 
  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) 

Unrealized 
Gain (Loss) 
On Available 
For Sale  
Securities 
     $ (64,082) 
7,061 
– 
– 
(2,619) 

Accumulated 
(Loss) on 
Effective  
Cash Flow 
Hedges 
     $  (3,729) 
– 
664 
– 
– 

Unrealized 
(Loss) 
On 
Employee 
Benefit Plans 

     $           – 
– 
– 
(18,587) 
7,230 

Total 

    $  (67,811) 
7,061 
664 
(18,587) 
4,611 

739 

211 

– 

950 

(251) 
     $ (59,152) 
48,308 
– 
– 
(17,239) 

(81) 
     $  (2,935) 
– 
2,201 
– 
(856) 

– 
  $  (11,357) 
– 
– 
7,518 
(2,925) 

(332) 
   $  (73,444) 
48,308 
2,201 
7,518 
(21,020) 

8,117 

211 

(384) 

7,944 

  $ 

(2,809) 
   $  (22,775) 
     (236,990) 
– 
– 
70,492 

(82) 
(1,461) 
– 
139 
– 
(54) 

  $ 

150 
(6,998) 
– 
– 
(16,434) 
6,393 

(2,741) 
   $  (31,234) 
     (236,990) 
139 
(16,434) 
76,831 

(21,926) 

289 

– 

(21,637) 

on realized gains (losses) 
  Balance at December 31, 2008 

6,551 
   $ (204,648) 

  $ 

(112) 
(1,199) 

– 
  $  (17,039) 

6,439 
   $ (222,886) 

  96

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    
 
 
 
 
    
 
    
    
    
    
 
 
 
 
 
    
    
 
    
    
    
    
 
 
 
 
 
 
    
    
    
    
 
 
 
 
 
 
    
    
    
    
 
 
 
 
 
 
    
    
    
    
 
 
 
 
 
    
    
 
    
    
    
    
 
 
 
 
 
 
    
    
    
    
 
 
 
 
 
 
    
    
    
    
 
 
(17) Earnings Per Share 

The following table presents the computation of basic and diluted earnings per share (dollars in thousands except per share data): 

Years ended December 31, 
2007 

2006 

2008 

Numerator: 

Net income 

Denominator: 

Denominator for basic earnings per share – weighted average shares 
Effect of dilutive potential common shares: 
Employee stock compensation plans1 

Denominator for diluted earnings per share – adjusted  
weighted average shares and assumed conversions 

Basic earnings per share 
Diluted earnings per share 

  $ 

153,232 

  $ 

217,664 

  $ 

212,977 

67,274,457 

67,083,200 

66,759,384 

282,763 

467,338 

550,621 

67,557,220 
$2.28 
$2.27 

67,550,538 
$3.24 
$3.22 

67,310,005 
$3.19 
$3.16 

1  Excludes employee stock options with exercise prices greater than the 

1,571,239 

799,087 

440,216 

current market price. 

 (18) Reportable Segments  

BOK Financial operates three principal lines of business: commercial banking, consumer banking and wealth management.  Our 
principal lines of business have been re-defined from the previous year to better present the Company’s organization as it has 
grown in markets outside of Oklahoma.  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, the provision for credit losses in excess of net loans 
charged off, tax planning strategies and certain executive compensation costs that are not attributed to the lines of business.  

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

Substantially all revenue is from domestic customers. No single external customer accounts for more than 10% of total revenue. 

  97

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
(In Thousands) 

Year ended December 31, 2008 

Net interest revenue/(expense) 

from external sources 

Net interest revenue/(expense) 

from internal sources 
Total net interest revenue 

Other operating revenue 
Operating expense 
Provision for credit losses 
Increase (decrease) in fair 

Commercial 
Banking 

Consumer 
Banking 

Wealth 
Management 

Funds 
Management 
and Other 

Total 

  $  451,623 

  $ 

32,076 

$  12,617 

  $  150,546 

 $ 

646,862 

(134,196) 
317,427 

107,185 
217,155 
81,966 

118,728 
150,804 

148,885 
219,024 
16,726 

32,853 
45,470 

156,133 
149,966 
2,961 

(17,385) 
133,161 

1,137 
42,233 
100,940 

– 
646,862 

413,340 
628,378 
202,593 

value of mortgage servicing rights 

– 

(34,515) 

4,689 

12,525 

– 

(7) 

– 

(34,515) 

5,729 

22,936 

(82) 
130,098 
50,608 
79,490 

  $ 

193 
42,142 
16,393 
25,749 

  $ 

– 
48,669 
18,932 
$  29,737 

378 
(2,768) 
(21,024) 
  $  18,256 

 $ 

489 
218,141 
64,909 
153,232 

Gains (losses) on financial  

instruments, net 

Gains (losses) on repossessed 

assets, net 

Income before taxes 
Federal and state income tax 
Net income 

Average assets 
Average invested capital 

  $ 12,920,566 
1,036,980 

  $ 7,974,694 
216,810 

 $  2,505,168 
191,830 

  $(1,790,609)   $  21,609,819 
1,946,342 

500,722 

Performance measurements: 

Return on assets 
Return on invested capital 
Efficiency ratio 

0.62%
7.67 
51.14 

0.32%

11.88 
73.08 

1.19%

15.50 
74.39 

– 
– 
– 

0.71% 
7.87 
59.27 

Reconciliation to Consolidated Financial Statements 

Net Interest 
Revenue 

Other 
Operating 
Revenue 

Other 
Operating 
Expense 

Net 
Income 

Average 
Assets 

Total reportable segments 
Unallocated items: 

Tax-equivalent adjustment 
Funds management and other  
(including eliminations), net 

BOK Financial consolidated 

$ 513,701 

$ 412,203 

  $  620,549 

$ 134,976 

  $ 23,400,427 

8,228 

– 

– 

8,228 

– 

124,933 
$ 646,862 

1,137 
$  413,340 

41,855 
  $  662,404 

10,028 
$ 153,232 

(1,790,608) 
  $ 21,609,819 

  98

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial 
Banking 

Consumer 
Banking 

Wealth 
Management 

Funds 
Management 
and Other 

Total 

(In Thousands) 

Year ended December 31, 2007 

Net interest revenue/(expense) 

from external sources 

  $  526,225 

  $ 

(7,807)   

$  8,562 

  $  17,505 

 $ 

544,485 

Net interest revenue/(expense) 

from internal sources 
Total net interest revenue 

Other operating revenue 
Operating expense 
Provision for credit losses 
Cavanal Hill Funds settlement 
Increase (decrease) in fair 

(200,390) 
325,835 

131,081 
201,876 
9,747 
– 

163,028 
155,221 

144,585 
193,599 
9,233 
– 

value of mortgage servicing rights 

– 

(2,893) 

1,075 

(486) 

37,627 
46,189 

130,681 
131,205 
1,513 
2,232 

– 

13 

(265) 
17,240 

(1,653) 
43,265 
14,228 
– 

– 
544,485 

404,694 
569,945 
34,721 
2,232 

– 

(2,893) 

(6,648) 

(6,046) 

10 
246,378 
95,841 
  $  150,537 

  $ 

107 
93,702 
36,450 
57,252 

– 
41,933 
16,312 
$  25,621 

(34) 
(48,588) 
(32,842) 
  $  (15,746)   $ 

83 
333,425 
115,761 
217,664 

Gains (losses) on financial  

instruments, net 

Gains (losses) on repossessed 

assets, net 

Income before taxes 
Federal and state income tax 
Net income 

Average assets 
Average invested capital 

  $ 11,274,301 
1,059,730 

  $ 7,514,732 
194,130 

 $  2,020,472 
182,370 

  $(1,783,737)   $  19,025,768 
1,812,463 

376,233 

Performance measurements: 

Return on assets 
Return on invested capital 
Efficiency ratio 

1.34%
14.21 
44.18 

0.76%
29.49 
64.57 

1.27%
14.05 
74.18 

– 
– 
– 

1.14% 
12.01 
60.05 

Reconciliation to Consolidated Financial Statements 

Net Interest 
Revenue 

Other 
Operating 
Revenue 

Other 
Operating 
Expense 

Net 
Income 

Average 
Assets 

Total reportable segments 
Unallocated items: 

Tax-equivalent adjustment 
Funds management and other  
(including eliminations), net 

BOK Financial consolidated 

$ 527,245 

$ 406,347 

  $  531,688 

$ 233,410 

  $ 20,809,505 

9,120 

– 

– 

9,120 

– 

8,120 
$ 544,485 

(1,653) 
$  404,694 

43,299 
  $  574,987 

(24,866) 
$ 217,664 

(1,783,737) 
  $ 19,025,768 

  99

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(In Thousands) 

Year ended December 31, 2006 

Net interest revenue/(expense) 

from external sources 

Net interest revenue/(expense) 

from internal sources 
Total net interest revenue 

Other operating revenue 
Operating expense 
Provision for credit losses 
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 
Net income 

Commercial 
Banking 

Consumer 
Banking 

Wealth 
Management 

Funds 
Management 
and Other 

Total 

  $  456,497 

  $ 

(5,015)   

$  16,731 

  $  18,475 

 $ 

486,688 

(162,537) 
293,960 

119,891 
184,385 
2,988 

– 

10 

255 
226,743 
88,203 
  $  138,540 

  $ 

151,532 
146,517 

134,261 
176,649 
5,075 

3,009 

(1,102) 

72 
101,033 
39,302 
61,731 

29,180 
45,911 

114,044 
114,548 
242 

– 

5 

(18,175) 
300 

4,999 
39,962 
10,097 

– 
486,688 

373,195 
515,544 
18,402 

– 

3,009 

(485) 

(1,572) 

– 
45,170 
17,571 
$  27,599 

(99) 
(45,344) 
(30,451) 
  $  (14,893)   $ 

228 
327,602 
114,625 
212,977 

Average assets 
Average invested capital 

  $  9,993,775 
997,210 

  $ 6,966,156 
192,310 

 $  1,710,193 
163,340 

  $(1,862,533)   $  16,807,591 
1,609,359 

256,499 

Performance measurements: 

Return on assets 
Return on invested capital 
Efficiency ratio 

1.39%
13.89 
44.55 

0.89%
32.10 
62.91 

1.61%
16.90 
71.61 

– 

– 

1.27% 
13.23 
59.96 

Reconciliation to Consolidated Financial Statements 

Net Interest 
Revenue 

Other 
Operating 
Revenue 

Other 
Operating 
Expense 

Net 
Income 

Average 
Assets 

Total reportable segments 
Unallocated items: 

Tax-equivalent adjustment 
Funds management and other  
(including eliminations), net 

BOK Financial consolidated 

$ 486,388 

$ 368,196 

  $  472,246 

$ 227,870 

  $ 18,670,124 

6,963 

– 

– 

6,963 

– 

(6,663) 
$ 486,688 

4,999 
$  373,195 

40,061 
  $  512,307 

(21,856) 
$ 212,977 

(1,862,533) 
  $ 16,807,591 

 100

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(19) Fair Value of Financial Instruments  

The following table presents the carrying values and estimated fair values of financial instruments as of December 31, 2008 and 
2007 (dollars in thousands): 

2008: 

Cash and cash equivalents 
Securities 
Residential mortgage – held for sale 
Loans: 

Commercial 
Commercial real estate 
Residential mortgage 
Consumer 

Total loans 

Reserve for loan losses 

Net loans 
Derivative instruments with positive 

fair value 

Deposits with no stated maturity 
Time deposits 
Other borrowings 
Subordinated debentures 
Derivative instruments with negative 

fair value 

2007: 

Cash and cash equivalents 
Securities 
Residential mortgage – held for sale 
Loans: 

Commercial 
Commercial real estate 
Residential mortgage 
Consumer 

Total loans 

Reserve for loan losses 

Net loans 
Derivative instruments with positive 

fair value 

Deposits with no stated maturity 
Time deposits 
Other borrowings 
Subordinated debentures 
Derivative instruments with negative 

fair value 

Range of 
Contractual 
Yields 

Average 
Repricing 
(in years) 

Discount 
Rate 

Estimated 
Fair 
Value 

  $  694,942 
7,136,032 
129,246 

– 

– 

  0.25  –  18.00% 
  1.75  –  18.00 
  5.00  –  10.45 
  1.50  –  21.00 

– 

0.35 
1.49 
7.10 
1.22 

     0.44 – 3.81% 
     1.00 – 3.81 
     1.76 – 3.53 

3.81 

7,344,753 
2,703,146 
2,086,901 
1,063,566 
13,198,366 

– 
13,408,500 

452,604 
9,799,364 
5,238,740 
4,085,035 
466,280 

667,034 

6,958,062 
2,708,722 
1,600,507 
926,967 
12,194,258 

– 
12,301,143 

502,446 
9,128,653 
4,431,489 
3,851,863 
368,638 

513,840 

  0.15   –    9.74 
  1.85  –    4.52 

5.59 

1.89 
0.54 
4.57 

0.13 – 1.66 
0.09 – 6.56 
1.41 

  $  890,413 
6,098,914 
76,677 

 – 

  $  890,413 
6,099,753 
76,677 

– 

  1.45  –  18.00% 
  5.63  –  18.00 
  3.81  –  12.75 
  4.50  –  21.00 

– 

0.43 
1.42 
7.00 
1.95 

     4.57 – 7.25% 
7.25 
3.98 
7.25 

  1.84  –    10.00 
  2.45  –    6.15 

5.47 

1.10 
0.81 
5.52 

3.37 – 5.20 
3.41 – 4.95 
3.41 

Carrying 
Value 

  $  694,942 
7,132,607 
129,246 

7,411,603 
2,701,248 
1,752,574 
1,010,581 
12,876,006 

(233,236) 
12,642,770 

452,604 
9,799,364 
5,183,243 
4,547,453 
398,407 

667,034 

6,737,505 
2,750,472 
1,531,296 
921,297 
11,940,570 

(126,677) 
11,813,893 

502,446 
9,128,653 
4,330,638 
4,252,695 
398,273 

513,840 

The preceding table presents the estimated fair values of financial instruments.  Fair value is the estimated price that would be 
received to sell the financial assets or paid to transfer the financial liabilities in an orderly transaction between market 
participants.  Because no market exists for certain of these financial instruments and management does not intend to sell these 
financial instruments, BOK Financial does not know whether the fair values shown above represent values at which the 
respective financial instruments could be sold individually or in the aggregate. 

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. 

 101

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Securities 

The fair values of securities are based on quoted market prices or dealer quotes, when available. If quotes are not available, fair 
values are based on quoted prices of comparable instruments. 

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. 

Loans 

The fair value of loans, excluding loans held for sale, are based on discounted cash flow analyses using interest rates currently 
being offered for loans with similar remaining terms to maturity and credit risk, adjusted for the impact of interest rate floors and 
ceilings. The fair values of loans were estimated to approximate their carrying values less loan loss reserves allocated to these 
loans of $210 million and $107 million at December 31, 2008 and 2007, respectively. 

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 and hedging transactions. 

Deposits 
The fair values of time deposits are based on discounted cash flow analyses using interest rates currently being offered on similar 
transactions. Statement of Financial Accounting Standards No. 107, “Disclosures about Fair Value of Financial Instruments,” 
(“FAS 107”) defines the estimated fair value of deposits with no stated maturity, which includes demand deposits, transaction 
deposits, money market deposits and savings accounts, to equal the amount payable on demand. Although market premiums paid 
reflect an additional value for these low cost deposits, FAS 107 prohibits adjusting fair value for the expected benefit of these 
deposits. 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, 2008 and 2007.  

Fair Value of Financial Instruments  

Fair value of financial assets and liabilities that are measured on a recurring basis are as follows as of December 31, 2008 (in 
thousands): 

Assets: 

Trading securities 

  Available for sale securities 
  Mortgage trading securities 
  Residential mortgage loans held for sale 
  Mortgage servicing rights 
  Derivative contracts 

Liabilities: 
  Certificates of deposit 
  Derivative contracts 

Total 

$  99,601 
6,391,451 
399,211 
129,246 
42,752 
452,604 

632,754 
   667,034 

Quoted Prices in 
Active Markets for 
Identical 
Instruments 

  $         

793 
30,420 

Significant Other 
Observable 
Inputs 

Significant 
Unobservable 
Inputs 

$   

98,808     

6,361,031 
399,211 
129,246 

452,604 

632,754 
667,034 

42,752¹ 

(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 8, Mortgage Banking Activities. 

 102

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
The fair value of assets and liabilities based on significant other observable inputs are generally provided to us by third-party 
pricing services 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. 

The underlying methods used by the third-party pricing services are considered in determining the primary inputs used to 
determine fair values. 

Assets and liabilities measured at fair value on a nonrecurring basis generally include certain impaired loans, real estate and other 
repossessed assets and goodwill.  The allowance for loan losses related to collateral dependent impaired loans within the scope of 
FAS 114 is based on the fair value of the collateral.  Real estate and other repossessed assets are carried at the lower of cost, 
which is determined by fair value at the date of foreclosure, or current fair value.  The frequency of nonrecurring fair value 
measurements of impaired loans and real estate and other repossessed assets is governed by federal banking regulations.  Fair 
value measurements are generally based on appraised values which require significant Level 2 other observable inputs. 

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 business units is estimated by the discounted future earnings method.  Income growth is projected 
over a seven-year period for each unit 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 considered Level 3 inputs as defined by FAS 157 and represent our best estimate of assumptions that market 
participants would use to determine fair value of the respective business units.  The most critical assumptions in our evaluation 
were a 7.00% expected long-term growth rate, a 0.66% volatility factor for BOK Financial common stock, a 9.36% discount rate, 
and an 11.04% market risk premium. 

 (20) 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 borrowings 
Other liabilities 

Total liabilities 

Common stock 
Capital surplus 
Retained earnings 
Treasury stock 
Accumulated other comprehensive loss 

Total shareholders’ equity 
Total liabilities and shareholders’ equity 

December 31, 

2008 

2007 

  $ 

20,324 
9,900 
1,865,514 
1,623 
  $ 1,897,361 

  $ 

24,257 
13,361 
1,949,099 
1,503 
  $ 1,988,220 

  $ 

50,000 
1,104 
51,104 
4 
743,411 
1,427,057 
(101,329) 
(222,886) 
1,846,257 
  $ 1,897,361 

  $ 

50,000 
2,836 
52,836 
4 
722,088 
1,332,954 
(88,428) 
(31,234) 
1,935,384 
  $ 1,988,220 

 103

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Statements of Earnings 
(In Thousands) 

Dividends, interest and fees received from subsidiaries 
Other operating revenue 

Total revenue 

$  76,587 
359 
76,946 

$ 254,256 
482 
254,738 

$  80,855 
476 
81,331 

2008 

2007 

2006 

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 

2,131 
842 
290 
3,263 

715 
601 
220 
1,536 

– 
506 
191 
697 

73,683 
(1,505) 

253,202 
497 

80,634 
(28) 

75,188 
78,044 
$ 153,232 

252,705 
(35,041) 
$ 217,664 

80,662 
132,315 
$ 212,977 

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 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: 

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 

2008 

2007 

2006 

  $  153,232 

  $  217,664 

  $  212,977 

(78,044) 
895 
 (3,930) 
(402) 
71,751 

35,041 
3,460 
 (3,090) 
(585) 
252,490 

(132,315) 
4,014 
 (22,949) 
815 
62,542 

 (16,244) 
(16,244) 

 (240,718) 
(240,718) 

 (20,865) 
(20,865) 

50,000 
(50,000) 
7,743 
(59,191) 
(7,992) 
(59,440) 
(3,933) 
24,257 
  $  20,324 

50,000 
– 
13,747 
(50,416) 
(17,353) 
(4,022) 
7,750 
16,507 
  $  24,257 

– 
– 
12,647 
(36,788) 
(12,103) 
(36,244) 
5,433 
11,074 
  $  16,507 

Cash paid for interest 

  $ 

2,282 

  $ 

560 

  $ 

10 

 104

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 105

 
 
 
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 
Loans2 

Less reserve for loan losses 

Loans, net of reserve 

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 

Average 
Balance 

  $  6,087,167 
258,552 
6,345,719 
73,563 
70,287 
12,593,683 
168,042 
12,425,641 
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 

Yield/ 
Rate 

5.10% 
6.48 
5.16 
6.71 
2.24 
5.82 
– 
5.90 
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 
733,347 
– 
733,347 
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 
436,276 
662,404 
218,141 
64,909 
$ 153,232 

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. 

 106

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Average 
Balance 

  $  5,166,218 
341,913 
5,508,131 
29,043 
77,890 
11,440,045 
120,086 
11,319,959 
16,935,023 
2,090,745 
  $19,025,768 

  $  5,508,831 
165,729 
4,568,738 
10,243,298 
2,758,306 
838,708 
395,050 
14,235,362 
2,368,897 
609,046 
1,812,463 
  $19,025,768 

2007 
Revenue/ 
Expense1 

$ 248,972 
21,293 
270,265 
1,948 
4,480 
893,164 
– 
893,164 
1,169,857 

$ 194,617 
1,499 
216,630 
412,746 
134,347 
44,258 
24,901 
616,252 

$ 553,605 

9,120 
544,485 
34,721 
398,648 
574,987 
333,425 
115,761 
$ 217,664 

Yield/ 
Rate 

Average 
Balance 

  $  4,770,959 
290,356 
5,061,315 
21,213 
36,196 
9,706,866 
106,689 
9,600,177 
14,718,901 
2,088,690 
  $16,807,591 

  $  4,595,993 
148,656 
4,279,610 
9,024,259 
2,145,648 
725,329 
294,962 
12,190,198 
2,355,538 
652,496 
1,609,359 
  $16,807,591 

4.85% 
6.39 
4.94 
6.71 
5.75 
7.81 
– 
7.89 
6.92 

3.53% 
0.90 
4.74 
4.03 
4.87 
5.28 
6.30 
4.33 

2.59% 
3.28 

Yield/ 
Rate 

4.67% 
5.44 
4.71 
4.92 
5.09 
7.75 
– 
7.84 
6.75 

3.24% 
0.95 
4.36 
3.73 
4.92 
5.11 
6.88 
4.10 

2.65% 
3.36 

2006 
Revenue/ 
Expense1 

$ 222,531 
15,572 
238,103 
1,044 
1,841 
752,404 
– 
752,404 
993,392 

$ 148,986 
1,408 
186,514 
336,908 
105,483 
37,070 
20,280 
499,741 

$ 493,651 

6,963 
486,688 
18,402 
371,623 
512,307 
327,602 
114,625 
$ 212,977 

 107

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Quarterly Financial Summary – Unaudited 

Consolidated Daily Average Balances, 
Average Yields and Rates 

(Dollars in Thousands Except Per Share Data) 

Assets 

Taxable securities3 
Tax-exempt securities3 
Total securities3 
Trading securities 
Funds sold and resell agreements 
Loans2 

Less reserve for loan losses 

Loans, net of reserve 

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 

Earnings Per Average Common Share Equivalent: 

Net income: 
Basic 
Diluted 

December 31, 2008 

September 30, 2008 

Three Months Ended 

Average 
Balance 

Revenue/  Yield/ 
Expense1 
Rate 

Average 
Balance 

Revenue/ 
Expense1 

Yield/ 
Rate 

5.09% 
6.64 
5.15 
5.61 
1.44 
5.69 
– 
5.77 
5.55 

1.72% 
0.37 
3.39 
2.39 
1.98 
2.56 
5.55 
2.41 

3.14% 
3.48 

5.12%   
6.43 
5.17 
6.55 
0.76 
5.27 
– 
5.35 
5.28 

1.51%   
0.37 
3.28 
2.29 
0.94 
1.51 
5.48 
2.02 

3.26% 
3.57 

  $  6,634,035    $  87,317 
4,133 
91,450 
1,298 
92 
171,383 
– 
171,383 
264,223 

255,693 
6,889,728 
78,840 
48,246 
12,947,880 
209,319 
12,738,561 
19,755,375 
2,516,276 
  $ 22,271,651 

  $  6,116,465    $  23,161 
143 
42,090 
65,394 
7,289 
7,541 
5,489 
85,713 

155,784 
5,109,303 
11,381,552 
3,095,054 
1,986,857 
398,392 
16,861,855 
2,712,384 
807,740 
1,889,672 
  $ 22,271,651 

    $178,510 

2,063 
176,447 
73,001 
127,802 
185,442 
45,806 
10,363 
    $  35,443 

$0.53 
$0.53 

$  6,056,909  $  78,030 
4,166 
82,196 
937 
290 
181,862 
– 
181,862 
265,285 

254,803 
6,311,712 
66,419 
79,862 
12,713,356 
182,844 
12,530,512 
18,988,505 
2,832,658 
$21,821,163 

$  6,565,935  $  28,312 
147 
40,810 
69,269 
15,253 
8,935 
5,553 
99,010 

159,856 
4,792,366 
11,518,157 
3,061,186 
1,390,233 
398,361 
16,367,937 
2,739,209 
787,420 
1,926,597 
$ 21,821,163 

    $166,275 

1,927 
164,348 
52,711 
132,296 
164,290 
79,643 
22,958 
  $  56,685 

$0.84 
$0.84 

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. 

 108

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
   
 
June 30, 2008 

Three Months Ended 
March 31, 2008 

December 31, 2007 

Average 
Balance 

Revenue/  Yield/ 
Expense1 
Rate 

Average 
Balance 

Revenue/ 
Expense1 

Yield/ 
Rate 

Average 
Balance 

Revenue/ 
Expense1 

Yield/ 
Rate 

4.86% 
7.19 
4.99 
6.62 
5.95 
7.50 
– 
7.58 
6.70 

3.34% 
0.86 
4.68 
3.88 
4.42 
4.92 
5.69 
4.10 

2.60% 
3.22 

$  6,026,769  $  75,959 
4,165 
80,124 
1,267 
355 
180,424 
– 
180,424 
262,170 

259,410 
6,286,179 
74,058 
72,444 
12,527,011 
145,524 
12,381,487 
18,814,168 
2,794,132 
$21,608,300 

$  6,420,291  $  27,755 
148 
38,211 
66,114 
15,180 
14,032 
5,821 
101,147 

159,798 
4,076,167 
10,656,256 
3,126,110 
2,267,076 
398,336 
16,447,778 
2,634,038 
541,693 
1,984,791 
$ 21,608,300 

5.08%  
6.46 
5.14 
6.88 
1.97 
5.79 
– 
5.86 
5.61 

1.74%  
0.37 
3.77 
2.50 
1.95 
2.49 
5.88 
2.47 

$  5,624,430  $  72,055 
4,189 
76,244 
1,433 
840 
199,678 
– 
199,678 
278,195 

264,398 
5,888,828 
74,957 
80,735 
12,181,279 
131,709 
12,049,570 
18,094,090 
2,402,963 
$ 20,497,053 

$  6,267,021  $  42,175 
238 
45,734 
88,147 
23,649 
11,718 
5,399 
128,913 

156,953 
4,225,141 
10,649,115 
3,061,783 
1,340,846 
398,241 
15,449,985 
2,443,201 
618,721 
1,985,146 
$ 20,497,053 

5.11%  
6.38 
5.17 
7.69 
4.18 
6.59 
– 
6.66 
6.17 

2.71%  
0.61 
4.35 
3.33 
3.11 
3.51 
5.45 
3.36 

  $  5,633,173    $  68,670 
5,990 
74,660 
489 
1,303 
223,146 
– 
223,146 
299,598 

328,900 
5,962,073 
29,303 
86,948 
11,806,242 
125,996 
11,680,246 
17,758,570 
2,224,045 
  $ 19,982,615 

  $  5,861,544    $  49,358 
348 
53,613 
103,319 
35,169 
11,611 
5,708 
155,807 

160,170 
4,544,802 
10,566,516 
3,158,153 
936,353 
398,109 
15,059,131 
2,448,011 
580,574 
1,894,899 
  $ 19,982,615 

  $143,791 

2,502 
141,289 
13,200 
107,316 
157,727 
77,678 
26,518 
  $  51,160 

$0.76 
$0.76 

  $161,023 

3.14% 
3.44 

  $149,282 

2.81% 
3.31 

2,084 
158,939 
59,310 
55,616 
159,268 
(4,023) 
(2,862) 
$  (1,161) 

$(0.02) 
$(0.02) 

2,154 
147,128 
17,571 
120,562 
153,404 
96,715 
34,450 
$  62,265 

$0.93 
$0.92 

 109

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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.  

 110

 
 
 
  
  
 
  
 
 
 
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 2009 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 2008 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 2009 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 2009 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 14 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 2009 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 2009 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, 2008, 2007 and 2006 
Consolidated Balance Sheets as of December 31, 2008 and 2007 
Consolidated Statements of Cash Flows for the years ended December 31, 2008, 2007 and 2006 
Consolidated Statements of Changes in Shareholders’ Equity for the years ended December 31, 2008, 2007, and 2006 
Notes to Consolidated Financial Statements 
Annual Financial Summary – Unaudited 
Quarterly Financial Summary - Unaudited 
Reports of Independent Registered Public Accounting Firm 

 111

 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
(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) 

10.4.1(a) 

10.4.1(b) 

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. 

Employee Agreement between BOK Financial and V. Burns Hargis, incorporated by 
reference to Exhibit 10.4.1(a) of Form 10-K for the fiscal year ended December 31, 2002.   

Amendment to Employee Agreement between BOK Financial and V. Burns Hargis, 
incorporated by reference to Exhibit 10.4.1(b) of Form 10-K for the fiscal year ended 
December 31, 2002.   

 112

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
10.4.2 

10.4.2 (a) 

10.4.2 (b) 

10.4.3 

10.4.3 (a) 

10.4.3 (b) 

10.4.3 (c) 

10.4.3 (d) 

10.4.3 (e) 

10.4.4 

10.4.5 

10.4.5 (a) 

10.4.5 (b) 

10.4.6 

10.4.6 (a) 

10.4.7 

10.4.7 (a) 

10.4.8 

Amended and Restated Deferred Compensation Agreement (Amended as of December 1, 
2003) between Steven G. Bradshaw and BOK Financial Corporation, incorporated by 
reference to Exhibit 10.4.2 of Form 10-K for the fiscal year ended December 31, 2003.     

409A Deferred Compensation Agreement between Steven G. Bradshaw and BOK Financial 
Corporation dated December 31, 2004, incorporated by reference to Exhibit 10.4.2 (a) of 
Form 8-K filed on January 5, 2005. 

Employment Agreement between BOK Financial and Steven G. Bradshaw dated 
September 29, 2003, incorporated by reference to Exhibit 10.4.2 (b) of Form 10-K for the 
fiscal year ended December 31, 2004. 

Amended and Restated Deferred Compensation Agreement (Amended as of December 1, 
2003) between William Jeffrey Pickryl and BOK Financial Corporation, incorporated by 
reference to Exhibit 10.4.3 of Form 10-K for the fiscal year ended December 31, 2003.     

409A Deferred Compensation Agreement between William Jeffrey Pickryl and BOK 
Financial Corporation dated December 31, 2004, incorporated by reference to Exhibit 
10.4.3 (a) of Form 8-K filed on January 5, 2005. 

Employment Agreement between BOK Financial and W. Jeffrey Pickryl dated September 
29, 2003, incorporated by reference to Exhibit 10.4.3 (b) of Form 10-K for the fiscal year 
ended December 31, 2004. 

Amendment to Employment Agreement between BOK Financial and W. Jeffrey Pickryl 
dated August 30, 2004, incorporated by reference to Exhibit 10.4.3 (c) of Form 10-K for 
the fiscal year ended December 31, 2004. 

Supplemental Executive Income Agreement dated December 20, 2005 between W. Jeffrey 
Pickryl and BOK Financial Corporation, incorporated by reference to Exhibit 99 (a) of 
Form 8-K filed on December 22, 2005. 

Amendment to Employment Agreement dated November 27, 2007 between BOK Financial 
Corporation and W. Jeffrey Pickryl, incorporated by reference to Exhibit 99 (a) of Form 8-
K filed on November 30, 2007. 

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 Mark W. Funke and BOK Financial 
Corporation dated December 31, 2004, incorporated by reference to Exhibit 10.4.6 of Form 
8-K filed on January 5, 2005. 

Amended and Restated Deferred Compensation Agreement (Amended as of December 1, 
2003) between Mark W. Funke and BOK Financial Corporation, incorporated by reference 
to Exhibit 10.4.6 (a) 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. 

 113

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
10.5 

Director indemnification agreement dated June 30, 1987, between BOk and Kaiser, 
incorporated by reference to Exhibit 10.5 of S-1 Registration Statement No. 33-90450. 
Substantially similar director indemnification agreements were executed between BOk and 
the following: 

Date of Agreement 

James E. Barnes 
William H. Bell 
James S. Boese 
Dennis L. Brand 
Chester E. Cadieux 
William B. Cleary 
Glenn A. Cox 
William E. Durrett 
Leonard J. Eaton, Jr. 
William B. Fader 
Gregory J. Flanagan 
Jerry L. Goodman 
David A. Hentschel 
Philip N. Hughes 
Thomas J. Hughes, III 
William G. Kerr 
Philip C. Lauinger, Jr. 
Stanley A. Lybarger 
Patricia McGee Maino 
Robert L. Parker, Sr. 
James A. Robinson 
William P. Sweich 

June 30, 1987 
June 30, 1987 
June 30, 1987 
June 30, 1987 
June 30, 1987 
June 30, 1987 
June 30, 1987 
June 30, 1987 
June 30, 1987 
December 5, 1990 
June 30, 1987 
June 30, 1987 
July 7, 1987 
July 8, 1987 
June 30, 1987 
June 30, 1987 
June 30, 1987 
December 5, 1990 
June 30, 1987 
June 30, 1987 
June 30, 1987 
June 30, 1987 

10.6 

10.7.3 

10.7.4 

10.7.5 

10.7.6 

10.7.7 

10.7.8 

10.7.9 

10.7.10 

10.7.11 

10.7.12 

10.7.13 

10.8 

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 1994 Stock Option Plan, incorporated by reference to Exhibit 
4.0 of S-8 Registration Statement No. 33-79834. 

BOK Financial Corporation 1994 Stock Option Plan (Typographical Error Corrected 
January 16, 1995), incorporated by reference to Exhibit 10.7.4 of Form 10-K for the fiscal 
year ended December 31, 1994. 

BOK Financial Corporation 1997 Stock Option Plan, incorporated by reference to Exhibit 
4.0 of S-8 Registration Statement No. 333-32649.   

BOK Financial Corporation 2000 Stock Option Plan, incorporated by reference to Exhibit 
4.0 of S-8 Registration Statement No. 333-93957.   

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. 

 114

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
10.9 

10.10 

10.11 

10.12 

10.13 

10.13.1 

10.14 

10.14.1 

10.15 

10.15.1 

10.16 

10.16.1 

10.17 

10.18 

10.18.1 

10.19 

10.20 

10.21 

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. 

Asset Purchase Agreement (OREO and other assets) between BOk and Phi-Lea-Em 
Corporation dated April 30, 1991, incorporated by reference to Exhibit 10.11 of S-1 
Registration Statement No. 33-90450. 

Asset Purchase Agreement (Tanker Assets) between BOk and Green River Exploration 
Company dated April 30, 1991, incorporated by reference to Exhibit 10.12 of S-1 
Registration Statement No. 33-90450. 

Asset Purchase Agreement (Recovery Rights) between BOk and Kaiser dated April 30, 
1991, incorporated by reference to Exhibit 10.13 of S-1 Registration Statement No. 33-
90450. 

Purchase and Assumption Agreement dated August 7, 1992 among First Gibraltar Bank, 
FSB, Fourth Financial Corporation and BOk, as amended, incorporated by reference to 
Exhibit 10.14 of Form 10-K for the fiscal year ended December 31, 1992. 

Allocation Agreement dated August 7, 1992 between BOk and Fourth Financial 
Corporation, incorporated by reference to Exhibit 10.14.1 of Form 10-K for the fiscal year 
ended December 31, 1992. 

Merger Agreement among BOK Financial, BOKF Merger Corporation Number Two, 
Brookside Bancshares, Inc., The Shareholders of Brookside Bancshares, Inc. and Brookside 
State Bank dated December 22, 1992, as amended, incorporated by reference to Exhibit 
10.15 of Form 10-K for the fiscal year ended December 31, 1992. 

Agreement to Merge between BOk and Brookside State Bank dated January 27, 1993, 
incorporated by reference to Exhibit 10.15.1 of Form 10-K for the fiscal year ended 
December 31, 1992. 

Merger Agreement among BOK Financial, BOKF Merger Corporation Number Three, 
Sand Springs Bancshares, Inc., The Shareholders of Sand Springs Bancshares, Inc. and 
Sand Springs State Bank dated December 22, 1992, as amended, incorporated by reference 
to Exhibit 10.16 of Form 10-K for the fiscal year ended December 31, 1992. 

Agreement to Merge between BOk and Sand Springs State Bank dated January 27, 1993, 
incorporated by reference to Exhibit 10.16.1 of Form 10-K for the fiscal year ended 
December 31, 1992. 

Partnership Agreement between Kaiser-Francis Oil Company and BOK Financial dated 
December 1, 1992, incorporated by reference to Exhibit 10.16 of Form 10-K for the fiscal 
year ended December 31, 1993. 

Amendment to Partnership Agreement between Kaiser-Francis Oil Company and BOK 
Financial dated May 17, 1993, incorporated by reference to Exhibit 10.16.1 of Form 10-K 
for the fiscal year ended December 31, 1993. 

Purchase and Assumption Agreement between BOk and FDIC, Receiver of Heartland 
Federal Savings and Loan Association dated October 9, 1993, incorporated by reference to 
Exhibit 10.17 of Form 10-K for the fiscal year ended December 31, 1993. 

Merger Agreement among BOk, Plaza National Bank and The Shareholders of Plaza 
National Bank dated December 20, 1993, incorporated by reference to Exhibit 10.18 of 
Form 10-K for the fiscal year ended December 31, 1993. 

Amendment to Merger Agreement among BOk, Plaza National Bank and The Shareholders 
of Plaza National Bank dated January 14, 1994, incorporated by reference to Exhibit 
10.18.1 of Form 10-K for the fiscal year ended December 31, 1993. 

Stock Purchase Agreement between Texas Commerce Bank, National Association and BOk 
dated March 11, 1994, incorporated by reference to Exhibit 10.19 of Form 10-K for the 
fiscal year ended December 31, 1993. 

Merger Agreement among BOK Financial Corporation, BOKF Merger Corporation 
Number Four, Citizens Holding Company and others dated May 11, 1994, incorporated by 
reference to Exhibit 10.20 of Form 10-K for the fiscal year ended December 31, 1994. 

Stock Purchase and Merger Agreement among Northwest Bank of Enid, BOk and The 
Shareholders of Northwest Bank of Enid effective as of May 16, 1994, incorporated by 
reference to Exhibit 10.21 of Form 10-K for the fiscal year ended December 31, 1994. 

 115

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
10.22 

10.23 

10.24 

10.25 

10.26 

10.27 

10.28 

10.29 

10.30 

10.31 

10.32 

10.33 

10.34 

10.35 

21.0 

23.0 

31.1  

31.2  

32 

99.0 

Agreement and Plan of Merger among BOK Financial Corporation, BOKF Merger 
Corporation Number Five and Park Cities Bancshares, Inc. dated October 3, 1996, 
incorporated by reference to Exhibit C of S-4 Registration Statement No. 333-16337.   

Agreement and Plan of Merger among BOK Financial Corporation and First TexCorp., Inc. 
dated December 18, 1996, incorporated by reference to Exhibit 10.24 of S-4 Registration 
Statement No. 333-16337.   

Purchase and Assumption Agreement between Bank of America National Trust and Savings 
Association and BOK Financial Corporation dated July 27, 1998. 

Merger Agreement among BOK Financial Corporation, BOKF Merger Corporation No. 
Seven, First Bancshares of Muskogee, Inc., First National Bank and Trust Company of 
Muskogee, and Certain Shareholders of First Bancshares of Muskogee, Inc. dated 
December 30, 1998. 

Merger Agreement among BOK Financial Corporation, BOKF Merger Corporation 
Number Nine, and Chaparral Bancshares, Inc. dated February 19, 1999.   

Merger Agreement among BOK Financial Corporation, Park Cities Bancshares, Inc., Mid-
Cities Bancshares, Inc. and Mid-Cities National Bank dated February 24, 1999. 

Merger Agreement among BOK Financial Corporation, Park Cities Bancshares, Inc., PC 
Interim State Bank, Swiss Avenue State Bank and Certain Shareholders of Swiss Avenue 
State Bank dated March 4, 1999.   

Merger Agreement among BOK Financial Corporation, Park Cities Bancshares, Inc. and 
CNBT Bancshares, Inc. dated August 18, 2000, incorporated by reference to Exhibit 10.29 
of Form 10-K for the fiscal year ended December 31, 2000.   

Merger Agreement among BOK Financial Corporation, Bank of Tanglewood, N.A. and TW 
Interim Bank dated October 25, 2002, incorporated by reference to Exhibit 2.0 of S-4 
Registration Statement No. 333-98685. 

Remote Outsourcing Services Agreement between Bank of Oklahoma, N.A. and Alltel 
Information Services, Inc., dated September 1, 2002, incorporated by reference to Exhibit 
10.30 of the September 30, 2002 10-Q filed on November 13, 2002.   

Merger Agreement among BOK Financial Corporation, BOKF Merger Corporation 
Number Eleven, Colorado Funding Company, Colorado State Bank and Trust and Certain 
Shareholders of Colorado Funding Company dated July 8, 2003, incorporated by reference 
to Exhibit 10.32 of Form 10-K for the fiscal year ended December 31, 2003. 

Merger Agreement between BOK Financial Corporation, BOKF Merger Corporation 
Number Eight, Valley Commerce Bank, and Valley Commerce Bancorp, Ltd. dated 
December 20, 2004, incorporated by reference to Exhibit 10.1 of the Form 8-K filed on 
December 22, 2004. 

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. 

 116

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
99 (a) 

99 (b) 

99.1  

99.5 

99.6 

99.7 

99.8 

99.9 

Credit Agreement dated December 2, 2005 between BOK Financial Corporation and 
participating lenders, incorporated by reference to Exhibit 99 (a) of Form 8-K filed 
December 6, 2005. 

Credit Agreement between BOK Financial Corporation and George B. Kaiser dated July 
21, 2008, incorporated by reference to Exhibit 99 (b) of Form 8-K filed July 21, 2008. 

Undertakings incorporated by reference into S-8 Registration Statement No. 33-44121 for 
Bank of Oklahoma Master Thrift Plan and Trust, incorporated by reference to Exhibit 99.1 
of Form 10-K for the fiscal year ended December 31, 1993. 

Undertakings incorporated by reference into S-8 Registration Statement No. 33-79834 for 
BOK Financial Corporation 1994 Stock Option Plan, incorporated by reference to 
Exhibit 99.5 of Form 10-K for the fiscal year ended December 31, 1994. 

Undertakings incorporated by reference into S-8 Registration Statement No. 33-79836 for 
BOK Financial Corporation Directors’ Stock Compensation Plan, incorporated by reference 
to Exhibit 99.6 of Form 10-K for the fiscal year ended December 31, 1994. 

Undertakings incorporated by reference into S-8 Registration Statement No. 333-32649 for 
BOK  Financial Corporation 1997 Stock Option Plan, Incorporated by reference to Exhibit 
99.7 of Form 10-K for the fiscal year ended December 31, 1997.   

Undertakings incorporated by reference into S-8 Registration Statement No. 333-93957 for 
BOK Financial Corporation 2000 Stock Option Plan, Incorporated by reference to Exhibit 
99.8 of Form 10-K for the fiscal year ended December 31, 1999.   

Undertakings incorporated by reference into S-8 Registration Statement No. 333-40280 for 
BOK Financial Corporation Thrift Plan for Hourly Employees, Incorporated by reference to 
Exhibit 99.9 of Form 10-K for the fiscal year ended December 31, 2000.   

(b)  

Exhibits  

  See Item 15 (a) (3) above. 

(c)  

Financial Statement Schedules 

See Item 15 (a) (2) above. 

 117

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 27, 2009 

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 27, 2009, by 
the following persons on behalf of the registrant and in the capacities indicated. 

/s/ George B. Kaiser 
George B. Kaiser 
Chairman of the Board of Directors 

/s/ Steven E. Nell 
Steven E. Nell 
Executive Vice President and 
Chief Financial Officer 

/s/ Gregory S. Allen 
Gregory S. Allen 

OFFICERS 

/s/ Stanley A. Lybarger 
Stanley A. Lybarger 
Director, President and Chief  
Executive Officer 

/s/ John C. Morrow 
John C. Morrow 
Senior Vice President and Chief 
Accounting Officer 

DIRECTORS 

/s/ David F. Griffin 

  David F. Griffin 

C. Fred Ball, Jr. 

  V. Burns Hargis 

/s/ Sharon J. Bell 
Sharon J. Bell 

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 W. Gibson 
John W. Gibson 

/s/ E. Carey Joullian, IV 
E. Carey Joullian, IV 

/s/ Robert J. LaFortune 

  Robert J. LaFortune 

/s/ Steven J. Malcolm 
Steven J. Malcolm 

Paula Marshall 

/s/ E.C. Richards 
E.C. Richards 

 118

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 119

 
 
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 27, 2009 

/s/ Stanley A. Lybarger 
Stanley A. Lybarger 
President 
Chief Executive Officer 
BOK Financial Corporation 

 120

 
 
 
 
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 27, 2009 

/s/ Steven E. Nell 

Steven E. Nell 
Executive Vice President 
Chief Financial Officer 
BOK Financial Corporation

 121

 
 
        
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, 2008 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 27, 2009  

/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 

 122