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BOK Financial

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Employees 1001-5000
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FY2005 Annual Report · BOK Financial
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RELATIONSHIPS DRIVE RESULTS
BOK FINANCIAL CORPORATION  |  2005 ANNUAL REPORT

COLORADO

Since BOKF acquired Colorado State Bank & Trust,

N.A. in 2003, average assets have more than

doubled to $874 million. The newly opened Orchard

Falls branch makes five full service locations in the

Denver area, including two in Douglas County - one of

the top 20 fastest growing counties in the U.S. 

KANSAS/MISSOURI

The Kansas City loan produc

loan commitments exceeding $3

December 31, 2005.  We've been serving r

in the Kansas City market since 1999 thr

investment center and our tw

offices, with one on either side o

ARIZONA

After entering the dynamic Phoenix market in 2004

with a successful loan production office, BOKF

acquired a bank in 2005 which it subsequently

renamed Bank of Arizona, N.A. The two full service

branches are located in the Phoenix/Scottsdale area.

Already one of the top ten largest cities, Phoenix is

the fastest growing city in the U.S.

NEW MEXICO

Beginning as a consumer branch network acquired in

1998, Bank of Albuquerque, N.A. has grown to the

fourth largest bank in Albuquerque as measured by

deposit market share. Our 19 convenient locations in

Albuquerque are complemented by one full service

location in Santa Fe.

 
uction office has outstanding

ng $300 million at

e been serving retail clients

since 1999 through our

two mortgage origination

side of the state line.

OKLAHOMA

With 74 full-service banking locations statewide

complemented by an extensive ATM network, Bank of

Oklahoma, N.A. is the state's leading bank with twice

the deposit market share of our closest competitor.

We also are the leader in trust, commercial and

consumer lending, transaction card services and

public finance.

ARKANSAS

Bank of Arkansas, N.A.'s two full service branches are

located in the northwest region of the state where the

economy is flourishing. Our third branch is scheduled to

open in Bentonville in the third quarter of 2006. Our

largest institutional investments sales office is located in

the state’s capital of Little Rock. 

TEXAS

Since BOKF's entry in the Texas market in 1997, average

assets have grown to $3.4 billion. With 23 banking

locations in the Dallas/Fort Worth area and another 14

locations in the Houston area, Bank of Texas, N.A. is

now the ninth largest bank headquartered in the state

and contributes 25% of BOKF earnings.

 
Financial Highlights
(Dollars In Thousands Except Per Share Data)

For the year:

Net income

Period-end:

Loans

Assets

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:

Tier 1 capital ratio

Total capital ratio

Leverage ratio

Reserve for loan losses to non performing loans

Combined reserves for credit losses to loans2, 3

Miscellaneous (at December 31)

Number of banking locations

Number of TransFund locations

2005

2004

2003

$ 201,505

$

179,023

$ 158,360

7,483,889

13,595,598

9,219,863

1,228,630

59,867

$

2.67

2.38

1.24 %

13.66

9,139,978

16,252,907

11,375,318

1,539,154

33,638

$

$

3.14

3.01

1.29 %

13.78

23.07

45.43

7,928,967

14,145,660

9,674,398

1,398,494

56,423

3.00

2.68

1.28 %

13.80

$

$

23.28

48.76

$

20.60

38.72

9.84 %

10.02 %

9.15 %

12.10

8.30

412.83

1.37

150

1,421

11.67

7.94

206.26

1.61

149

1,389

11.31

7.17

217.89

1.73

142

1,442

1

2

3

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

 
Relationships Drive Results
Our continued investment in building deeper, more complete relationships with our clients provided the
foundation for the strong results for BOK Financial Corporation (BOKF) in 2005. Our 15th consecutive year of
record earnings included net income of $201.5 million and earnings per share of $3.01 - a 12% increase over
2004. Loan growth of 15% was very strong and well-balanced, geographically and by industry. All of the BOKF
subsidiary banks experienced solid growth.  The banks outside Oklahoma produced over half of our growth in
earnings and now represent close to 40% of BOKF's total income. 

Our core strategy for many years has been to provide nationally competitive products delivered with local
community bank service, but others share a similar strategy. In an increasingly commoditized business, BOKF has
been successful by being more creative, flexible, and responsive than the competition.  BOKF's greatest strength
is the ability to attract and retain top talent and create an environment which helps talented and entrepreneurial
people excel.  It is the interplay of these factors and strong relationships with our customers that has significantly
enhanced shareholder value over the past 15 years.

In addition to the robust financial accomplishments in 2005, we continued to build the foundation for future
growth. In April, we completed our first acquisition in Phoenix, Arizona which we subsequently renamed Bank of
Arizona. We added significantly to our talent in Houston in the first half of the year, and benefited from
accelerated growth in the second half, increasing loans at a 30% annualized rate. In the fourth quarter, we
added a team of talented local bankers in Kansas City to provide agribusiness and middle market lending
services to continue to increase our presence in a market where, despite no full-service banking locations, we
have enjoyed solid growth.  We also laid the groundwork for successful expansion into the Tucson, Arizona and
Boulder, Colorado markets in 2006.

Another notable achievement in 2005 was the addition of two key members to the management team.  Don
Parker joined BOKF to lead our Operations and Technology Division.  Don is committed to ensuring that the
quality of our service and support provides a competitive edge for BOKF as we continue to grow.  We also
named Jean-Claude Gruet to lead our equity investment management group.  Jean-Claude is charged with
substantially expanding our offering and delivering top tier performance to our clients. 

As we look forward to 2006, we remain focused on building on the strong record of earnings growth that has
been the hallmark of BOKF. Our diverse sources of non-interest revenue, which in total comprised 44% of total
revenue in 2005, provide stability and growth during periods when the interest rate or credit environments are
less favorable.  The outstanding growth, potential of our regional markets should yield continued strong loan and
deposit growth as well as expansion opportunities for our fee-based lines of business.

Our success, past and future, is dependent upon people. The faces you see in this year's annual report represent
the thousands of talented BOKF team members who continue to work hard for our clients. Their efforts enable us
to be a provider of choice in the markets we serve. We want to express our appreciation to all the members of
the BOKF team and the many thousands of loyal customers they serve. 

Chairman

President and Chief Executive Officer

Commercial

BOKF remains steadfastly focused on developing long

term banking relationships by partnering with our

commercial clients to provide the financing and services

they need to grow and prosper. Our experienced,

knowledgeable bankers work closely with each client to

determine their specific needs and offer innovative

solutions. We offer a wide range of financial products and

services including loan and lease financing, treasury and

cash management, international trade services and even

financial risk management, including interest rate, energy,

foreign exchange and cattle hedging products. Growth in

the commercial loan portfolio is evidence of our forte in

middle market and small business lending. While our five

year compound average growth rate is a strong 10%, the

commercial loan portfolio grew 18% in 2005.  

In 2005, we made an investment in technology to

enhance our client service capabilities to allow us to more

efficiently offer our full range of financial products and

services. With our new sales force automation initiative,

our bankers are in a better position to evaluate a client's

financial needs, opportunities and profitability. This

integrated system facilitates cross selling and enables

predictive selling.  Another important benefit of this

initiative is that our bankers are spending less time in

their offices at their computers and more time with

existing and potential clients. Though we are just

beginning to reap the benefits, the payoff is clear. In

Oklahoma in 2005, commercial lending relationships with

new clients were up 35% compared to the prior year. 

As we have sought out new business, we have continued

to uphold our conservative underwriting standards. Our

centralized credit oversight is efficient and our well

defined and consistently applied standards ensure the

quality of the portfolio. While our five year average is

more indicative of our long term commercial credit losses,

in 2005, net chargeoffs decreased to 12 basis points

while nonperforming assets decreased from 70 basis

points in 2004 to 23 basis points.

BOK FINANCIAL CORPORATION | 2005 ANNUAL REPORT

 
Regional

The core strategies for Regional Banking focus on

developing and enhancing client relationships by providing

highly qualified, empowered relationship managers that take

a personal interest in their clients. While we centralize

administrative and back office functions, we place a

premium on maintaining local independence in client service

areas. To execute our strategy for local growth, we seek out

proven talent with tenure and influence. With the right

people in the right markets, the results are outstanding - our

five year compound annual growth rate is 19% for loans and

25% for deposits.  

Our well established local management enables us to be

responsive; our growing scale enables us to be increasingly

efficient while offering a complete range of services. By

delivering sophisticated products with a highly responsive

personal touch, Regional Banking fueled over half of BOKF's

growth in loans, deposits and earnings since 2001. 

Beginning with our entry in Dallas, Texas in 1997, BOKF has

carefully chosen dynamic new markets for expansion. Our

loan and deposit portfolios are increasingly reflecting our

geographic diversity. Markets outside Oklahoma fueled

60% of the growth in loans and deposits in 2005 and

accounted for 41% of the portfolios at year end. Regional

Banking's contribution to net income has grown from 28% in

2001 to 38% in 2005. During this period, gross revenue has

grown at a compound annual rate of 21%. There are

opportunities for significant growth in fee revenue as we

continue to export our services in our newer markets. 

Though organic growth continues to be our primary focus,

we will continue to pursue acquisition opportunities in our

footprint that would benefit our clients and shareholders. Of

the $6.4 billion in average assets outside Oklahoma, $2.4

billion were acquired. Our disciplined acquisition approach

and effective integration yield impressive returns. Bank of

Albuquerque, N.A., acquired in 1998, generated a 21% return

on invested capital in 2005, while Bank of Texas, N.A.,

which is far from maturity, generated 14%.

BOK FINANCIAL CORPORATION | 2005 ANNUAL REPORT

 
Consumer

We value our clients and strive to deliver the best advice

and service for each client's unique situation. The core of

our Perfect Banking strategy, launched in 2001, is to

create an exceptional client experience during each and

every contact. The process includes a continuous training

program centered on improvement and features a client

profile designed to help identify needs that can be

satisfied through an expanded relationship with our bank.

The success of this program is demonstrated by the 26%

compound annual growth rate over the last five years in

sales points, which measure the profit contribution of new

business. Helping our clients make the best possible

financial decisions sets us apart from other transaction-

focused retail banks.

Consumer Banking's vision strives to benefit each of our

primary constituents; our clients receive quality assistance,

our employees experience career growth and job

satisfaction, and our shareholders gain from the ultimate

result of increased profit. The results are exceptional. Since

2001, consumer deposits and fee  income have grown at

annual compound rates of 10% and 23%, respectively. Our

footprint provides ample opportunity for this impressive

growth to continue. Ten of the 28 counties we serve are

among the 100 fastest growing counties in the United

States as measured by numerical increase in population.   

We understand that time and value are paramount to

today's consumers so we offer more conveniences and

benefits. In addition to free checking, our clients enjoy free

online bill pay. Nearly 30% of our clients utilize our free

online banking service while the number of bill pay users

has increased five-fold since late 2003. Forty eight of our

137 branches are instore locations which are open

extended hours. A client service representative is available

24 hours a day, 7 days a week at ExpressBank, our

contact center. In 2005, ExpressBank celebrated its 10th

year of continuous service, averaging 790,000 phone

calls each month, 124,000 of which are handled by a live

ExpressBanker located in one of our domestic offices.

BOK FINANCIAL CORPORATION | 2005 ANNUAL REPORT

 
Transaction Card

Transaction cards are a fundamental part of our client

relationships. For over 25 years, TransFund, our

electronic funds transfer network, has been offering

integrated payment solutions to merchants and

financial institutions. Merchant services, which includes

revenue from processing card transactions for over

7,000 merchant locations, represents 35% of

TransFund's 2005 revenue. Network revenue, which

includes debit card support and processing for more

than 360 financial institutions in 12 states, represents

43% of revenue while check card transaction revenue

represents the remaining 22%. As the 10th largest ATM

network, TransFund has over 1,400 ATMs conveniently

located in financial institutions, grocery stores and

convenience stores.  

While TransFund's 16% five year compound annualized

growth rate in transaction volume is partially

attributed to the impressive growth in BOKF's deposit

client base, much of it is due to our sales efforts to

other financial institutions. The number of clients

outside Oklahoma has increased 50% in the last five

years.  TransFund's 1.5 million cardholders throughout a

12 state area have come to rely on the red and white

TransFund logo.

TransFund's 13% compound annualized revenue growth

rate over the last five years is a direct result of our

focus on client relationships. Though we do offer a cost

advantage over the competition with our surcharge-

free zones, it is our unparalleled reputation for quality

service that attracts and maintains business. From the

first contact to the on-site personalized training, our

dedicated, knowledgeable EFT professionals, many of

whom have more than 20 years of service with the

company, guide financial institutions through the

process of implementation and growth.

BOK FINANCIAL CORPORATION | 2005 ANNUAL REPORT

 
Wealth Management

BOKF's wealth management group provides a wide

range of trust and private financial services to affluent

individuals, businesses and non-profit agencies. Trust

services include personal trust, estate and retirement

planning, investment management, retirement and

institutional benefits, and corporate trust as well as

mineral and real estate management. Total trust assets

grew 16% in 2005, totaling $28 billion at year end, while

discretionary assets grew 22% to $11 billion.

Our talented team of employees value the relationships

we have with our clients and work very hard to find

solutions to client needs instead of forcing a one-size-fits-

all product. During 2005, this was best illustrated

through the introduction of our wealth management

investment team. The team is comprised of talented and

experienced professionals from our brokerage, trust,

investment management, and private financial services

units. Their focus is to provide a broad and detailed set of

unique solutions to ensure that each client has a financial

advisory strategy that will achieve their stated goals and

objectives. Our bankers strive to earn the role of “trusted

advisor” to our clients by gaining their trust, providing

useful, personalized advice and building relationships.

Our success is reflected in the 13% increase in fee revenue.

BOKF's proprietary mutual fund family, the American

Performance Funds, includes money market, equity and

fixed income investment options.  Four of our 13 funds

rank in the top 10% of their Lipper peer groups for the

calendar year 2005. The American Performance

Intermediate Bond Fund was ranked #1 for the calendar

year 2005 according to Lipper. During 2005, we began

an initiative to expand our equity product offerings. We

recently implemented a strategic effort to expand our

distribution capabilities and increase assets under

management in our mutual funds which grew 24% in

2005 to $3.2 billion.

BOK FINANCIAL CORPORATION | 2005 ANNUAL REPORT

 
Investment Services 

With 165 registered representatives in offices in 10 states,

our tenured investment professionals provide institutional

and retail sales, investment banking and financial risk

management services with an unusually high degree of

personal attention and industry knowledge. Our financial

consultants average over 15 years of professional

experience in the industry, which is more than 5 times the

industry average. As a result, we are uniquely qualified to

assist individual and corporate clients in reaching their

financial goals.  

By knowing our clients and their financial needs, we are

able to provide a level of professional advice and counsel

not found in other banks. Our investment professionals

take a consultative approach, helping clients to select,

preserve and grow assets according to their investment

objectives. In 2005, we handled more than 240,000

transactions and traded in excess of $145 billion in

securities for more than 25,000 institutional and

individual investors.

Our institutional sales professionals work closely with our

commercial banking division to identify our clients'

investment needs. We offer a complete line of investment

products and services including bonds, commercial paper,

bankers acceptances, portfolio accounting and pricing,

safekeeping, analysis and educational workshops to our

institutional clients which include corporations, insurance

companies, foundations, pension funds, mutual funds,

universities and investment advisors. Over the last five

years, brokerage and trading revenue has grown at a

compound annual rate of 24%.

While always seeking to attract new clients, we value our

existing relationships. In 2005, we created a team of

three professionals who devote their efforts entirely to

working with clients exiting benefit plans. Though an

individual's employment with our client may end, his

relationship with BOKF can continue. 

BOK FINANCIAL CORPORATION | 2005 ANNUAL REPORT

 
Mortgage

Mortgage Servicing Portfolio

Northeast

Midwest

West

Oklahoma

Other

VA

Conventional
15 Years and Less

South

Texas

FHA

Conventional
Over 15 Years

Loan Originations in Millions

$1,600

$1,400

$1,200

$1,000

$800

$600

$400

$200

$0

01

02

03

04

05

BOK FINANCIAL CORPORATION | 2005 ANNUAL REPORT

Our clients will make hundreds of important decisions

during their lives, but few as significant as the purchase of

a new home. With 15 mortgage offices in seven states,

BOKF stands ready to guide buyers through the

sometimes stressful and confusing process of financing a

home. From the application through the servicing of the

monthly payments, BOKF's focus is on client satisfaction.   

BOKF's relationships continue after funding as we retain

servicing rights on traditional mortgage products. We

service traditional mortgage loans exceeding $4 billion for

over 50,000 very satisfied families.  In 2005, BOKF's

mortgage unit earned FHLMC's prestigious Tier 1

designation. The ranking is based on servicing efficiency

and assistance provided to homeowners, including those

struggling to avoid foreclosure. For the last five years,

BOKF's annual delinquency rates have averaged over

100 basis points below the national delinquency rate

reported by the Mortgage Bankers' Association.

As with every product and service BOKF offers, the

mortgage unit serves not only our clients, but our

shareholders. Though the earnings volatility introduced by

the mortgage unit presents short term challenges, BOKF

manages for the long term return. The mortgage business

is a significant contributor to fee income and because of

its counter-cyclical nature, typically enjoys strong returns

when other fee business slows. From a client service

perspective, by retaining servicing rights we are able to

ensure our clients will continue to receive the outstanding

service they have come to expect from BOKF. 

BOKF mortgage clients will be even better served in

2006 as we implement an initiative to integrate the

mortgage unit into the Consumer Division's “Perfect

Banking” experience. Our goal is to improve client service

and increase bank-referred business. 

 
Community Development 

BOKF's dedication to the communities we serve is defined

in our mission statement and is demonstrated in several

ways in each of our markets. BOKF and its employees

supported non-profit organizations with over $2.7 million in

charitable grants and donations. Our employees provide

leadership on boards and committees of 250 non-profit

agencies and community organizations and volunteer their

time for over 1,000 events and programs. 

In 2005, bank employees contributed more than 24,000

hours of community service. We read to inner-city school

children in Oklahoma City; painted, mowed and trimmed

trees for United Way agencies in Tulsa; and committed

time and money to directly assist Hurricane Katrina victims

taking shelter in Houston. Arkansas employees collected

care package supplies for U.S. troops. In Albuquerque, our

staff hosted a Spanish language call-in program for

residents in need of financial services advice. Throughout

our markets, employees conducted a literacy drive that

collected more than 18,000 books for agencies that care

for homeless and abused children and families. Through

the course of these outreaches and our support of public

and private endeavors, we will continue to carry on our

mission of improving the quality of life in all our markets.

Through our innovative Adopt-An-Agency program, BOKF

has partnered with key community-based organizations in

all of our markets to drive product, investment and service

alternatives that provide wealth creation and asset

building opportunities for low-to-moderate income families

and individuals. Our work with agencies such as Mercy

Housing, Community Action Project of Tulsa County and

Mosaic Family Services, has a direct and lasting impact on

the communities where we live and work. At BOKF, we aim

to do well and do good, all at the same time.

BOK FINANCIAL CORPORATION | 2005 ANNUAL REPORT

Positioned for a Successful Future
The depth and breadth of client relationships determine the growth and profitability of our company.

BOKF's goal is to be our clients' lifelong financial resource fulfilling every need from consumer and

commercial loans and deposit accounts to mortgage loans. As our clients’ needs change, we stand ready to

help them select, preserve and grow their assets. Our proven methods for generating new business and

expanding services to existing clients produced solid results in 2005.  For the 15th consecutive year, BOKF

produced record earnings fueled by a combination of superior loan, deposit and fee revenue growth. As we

reflect on the past year, we must once again thank our dedicated employees whose unwavering support for

BOKF's values and implementation of our strategies is the core of our success story.

Relationships drive results and our investment in people is critical to meeting our long term objectives. As

we look toward the future, our focus will remain on our relationships with our employees, our clients and the

communities we serve, with the ultimate goal of all of our endeavors to build long term value for our

shareholders. We'll continue to foster a working environment that promotes career development and

rewards initiative, innovation, enthusiasm, team work and performance. We will continue to provide our

clients with the highest quality products and services, keeping in mind their need for timeliness, convenience

and flexibility. We will provide leadership in all of our communities for local and regional causes, encourage

and support volunteerism among our employees and financially support key civic activities that are critical

to the vitality of the community. By maintaining excellence in relationship banking, we will continue to create

value for our shareholders.

BOK FINANCIAL CORPORATION | 2005 ANNUAL REPORT

 Financials_v5.qxd  2/24/06  3:46 PM  Page 1

Management’s Discussion and Analysis

Table 1 Consolidated Selected Financial Data
(Dollars In Thousands Except Per Share Data)

December 31,

Selected Financial Data

For the year:

Interest revenue
Interest expense
Net interest revenue
Provision for credit losses
Net income

Period-end:

Loans, net of reserve
Assets
Deposits
Subordinated debentures
Shareholders’ equity
Nonperforming assets2

Profitability Statistics

Earnings per share (based on average 
equivalent shares):

Basic
Diluted

Pro forma diluted earnings per share with 

FAS 142 and FAS 147

Percentages (based on daily averages):

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

average assets

Common Stock Performance 

Per Share:

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

Selected Balance Sheet Statistics

Period-end:

2005

2004

2003

2002

2001

$

769,934
320,593
449,341
12,441
201,505

9,036,102
16,252,907
11,375,318
295,964
1,539,154
33,638

$

614,284
191,041
423,243
20,439
179,023

7,820,349
14,145,660
9,674,398
151,594
1,398,494
56,423

$

565,173
173,678
391,495
35,636
158,360

7,369,105
13,595,598
9,219,863
154,332
1,228,630
59,867

$

574,913
205,581
369,332
33,730
147,871

6,797,132
12,263,233
8,128,525
155,419
1,099,526
56,574

$

654,633
325,159
329,474
37,610
114,439

6,206,190
11,158,701
6,905,744
186,302
832,866
50,708

$

$

$

$

3.14
3.01

3.01

1.29%

13.78

9.39

23.07
45.43
49.31
39.79

3.00
2.68

2.68

1.28%

13.80

9.25

23.28
48.76
49.18
37.29

10.02%
11.67
7.94
206.26
1.38
1.61

$

$

2.67
2.38

2.38

1.24%

13.66

9.07

20.60
38.72
41.02
31.00

9.15%
11.31
7.17
217.89
1.55
1.73

$

$

2.59
2.30

2.30

1.31%

15.75

8.30

18.56
32.39
36.52
26.80

8.98%

11.95
6.88
208.31
1.53
1.72

$

$

2.02
1.81

1.95

1.12%

14.65

7.62

14.62
31.51
32.75
21.31

8.08%

11.56
6.38
204.71
1.46
1.66

Tier 1 capital ratio
Total capital ratio
Leverage ratio
Reserve for loan losses to nonperforming loans
Reserve for loan losses to loans1
Combined reserves for credit losses to loans1, 4

9.84%

12.10
8.30
412.83
1.14
1.37

Miscellaneous (at December 31)

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

3,825
150
1,421
$ 4,492,524

3,548
149
1,389
$ 4,486,513

3,449
142
1,442
$ 4,746,279

3,402
130
1,390
$ 5,754,548

3,392
114
1,325
$ 6,645,868

1 Excludes residential mortgage loans held for sale.
2 Includes nonaccrual loans, renegotiated loans and assets acquired in satisfaction of loans. Excludes loans past due 90 days or more and still accruing.
3 Includes outstanding principal for loans serviced for affiliates.
4 Includes reserve for loan losses and reserve for off-balance sheet credit losses.
5 Conversion of Series A preferred stock added 6.9 million common shares outstanding in 2005.

1

 Financials_v5.qxd  2/24/06  3:46 PM  Page 2

Management’s Discussion and Analysis

Management’s Assessment of
Operations and Financial Condition

Overview

BOK Financial Corporation (“BOK Financial” or “the Company”) is a

Our  acquisition  strategy  targets  quality  organizations  that  have

demonstrated solid growth in their business lines. We provide addi-

tional growth opportunities by hiring talent to enhance competitive-

ness, adding locations, and broadening product offerings. Our oper-

ating philosophy embraces local decision-making through the boards

of directors for each of our bank subsidiaries. 

financial holding company that offers full service banking in Oklahoma,

BOK Financial operates five principal lines of business: Oklahoma cor-

Northwest  Arkansas,  Dallas  and  Houston,  Texas,  Albuquerque,  New

porate  banking,  Oklahoma  consumer  banking,  mortgage  banking,

Mexico, Denver, Colorado, and Phoenix, Arizona. The Company also

wealth management, and regional banking. Mortgage banking activi-

has commercial loan production, mortgage banking and institutional

ties include loan origination and servicing across all markets served by

sales offices in the Kansas City market. BOK Financial was incorpo-

the Company. Wealth management provides brokerage and trading,

rated in 1990 in Oklahoma and is headquartered in Tulsa, Oklahoma.

private financial services and investment advisory services in all mar-

Activities are governed by the Bank Holding Company Act of 1956, as

kets. Wealth management also provides fiduciary services in all mar-

amended  by  the  Financial  Services  Modernization  Act  or  Gramm-

kets except Colorado. Fiduciary services in Colorado are included in

Leach-Bliley  Act.  Principal  subsidiaries  are  Bank  of  Oklahoma,  N.A.,

regional banking. Regional banking consists primarily of corporate and

Bank of Albuquerque, N.A., Bank of Arkansas, N.A., Bank of Texas, N.A,

consumer banking activities in the respective local markets. 

Colorado State Bank and Trust, N.A. and Bank of Arizona, 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 insti-

tution  as  measured  by  deposit  market  share.  Since  1997,  we  have

Performance Summary

BOK Financial’s net income for 2005 totaled $201.5 million or $3.01

per diluted share compared with $179.0 million or $2.68 per diluted

share in 2004. Returns on average assets and shareholders’ equity

were 1.29% and 13.78%, respectively, for 2005 compared with 1.28%

and 13.80%, respectively, for 2004. 

expanded into Dallas and Houston, Texas, Albuquerque, New Mexico,

Net income growth for 2005 was attributed primarily to increases in

and Denver, Colorado. During 2005, we acquired Valley Commerce

both net interest revenue and fees and commissions revenue, and a

Bank (subsequently renamed Bank of Arizona, N.A.) in Phoenix, Ari-

decrease in the provision for credit losses. Net interest revenue grew

zona. We are currently exploring opportunities for further growth in

$26.1 million or 6% during 2005 while fees and commissions revenue

our  regional  markets  and  expansion  into  the  Kansas  City  market

increased  $33.0  million  or  11%.  The  provision  for  credit  losses

through acquisition or de novo banking operations.

decreased $8.0 million compared to the previous year.

Our primary focus is to provide a broad range of financial products

Average earning assets increased $1.0 billion for 2005, including an

and services, including loans and deposits, cash management serv-

$846  million  increase  in  average  outstanding  loans.  Outstanding

ices, fiduciary services, mortgage banking and brokerage and trad-

loans increased in all of our primary markets. Much of the loan growth

ing  services  to  middle-market  businesses,  financial  institutions  and

was focused in the commercial and commercial real estate portfolios.

consumers. Our revenue sources are diversified. Approximately 43%

Growth  in  average  earning  assets  was  funded  by  a  $1.2  billion

of our revenue comes 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. 

increase  in  interest-bearing  liabilities.  Average  interest-bearing

deposits  increased  $839  million  while  short-term  borrowings

increased $325 million. Growth in average deposits came primarily in

the Texas, Oklahoma and Colorado markets. Consumer banking and

personal financial services provided much of the increases. Growth in

average  interest-bearing  liabilities  also  funded  a  $198  million

decrease  in  average  demand  deposits.  Net  interest  margin  was

3.39% for 2005, down 6 basis points from the previous year.

2

 Financials_v5.qxd  2/24/06  3:46 PM  Page 3

Management’s Discussion and Analysis

Fees and commissions totaled $345.6 million, which represented 43%

of total revenue, excluding net securities and derivatives losses. Rev-

Reserves for Loan Losses and 
Off-Balance Sheet Credit Losses 

enue grew in all business lines. Trust fees increased $7.7 million or 13%

due primarily to growth in the fair value of assets and new business

generated. Transaction card revenue grew $7.2 million or 11% due to

transaction volumes. Other revenue increased $7.9 million due largely

to fees earned on margin assets carried in support of the Company’s

derivatives business.

Operating  expenses  increased  $27.9  million  or  6%  compared  with

2004  due  primarily  to  increased  personnel  and  data  processing

Reserves  for  loan  losses  and  off-balance  sheet  credit  losses  are

assessed  by  management  based  on  an  ongoing  evaluation  of  the

probable estimated losses inherent in the portfolio and probable esti-

mated losses on unused commitments to provide financing. A consis-

tent, 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,

costs. Personnel costs increased $18.3 million as both total employ-

loan concentrations, portfolio growth and other relevant factors.

ment and average compensation per employee grew. Data process-

ing  expenses  increased  $7.0  million,  including  $3.5  million  directly

related to higher transaction card processing volumes. 

Net income for the fourth quarter of 2005 totaled $48.2 million or 72

cents per diluted share compared with $46.6 million or 70 cents per

diluted  share  for  the  fourth  quarter  of  2004.  Net  interest  revenue

grew $9.9 million or 9% due to earning asset growth, partially offset

by a 4 basis point reduction in net interest margin. Fees and commis-

sions revenue increased $11.1 million or 14% due primarily to trust fees,

transaction card revenue and fees earned on margin assets. Operat-

An independent Credit Administration department is responsible for

performing this evaluation for all of our subsidiaries to ensure that the

methodology is applied consistently. 

All  significant  loans  and  commitments  that  exhibit  weaknesses  or

deteriorating  trends  are  reviewed  quarterly.  Specific  reserves  for

impairment  are  determined  through  evaluation  of  estimated  future

cash  flows  and  collateral  values  in  accordance  with  Statement  of

Financial Accounting Standards No. 114, “Accounting by Creditors for

the  Impairment  of  a  Loan”,  regulatory  accounting  standards  and

ing expenses increased $12.3 million or 11% due to higher personnel

other authoritative literature.

and data processing costs. Earnings for the fourth quarter of 2004

included an after-tax gain of $2.5 million or 4 cents per diluted share

from  the  sale  of  equity  securities  that  had  been  acquired  in  prior

years from a sale of a problem loan. 

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

General  reserves  for  commercial  and  commercial  real  estate  loan

losses, and related commitments, 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.

to make significant assumptions and estimates. The following discus-

Separate models are used to determine the general reserve for resi-

sion addresses the most critical areas where these assumptions and

dential  mortgage  loans,  excluding  residential  mortgage  loans  held

estimates could affect financial condition and results of operations.

for sale, and consumer loans. General reserves for residential mort-

Application  of  these  critical  accounting  policies  and  estimates  has

gage loans and consumer loans are based on a percent of loss expe-

been  discussed  with  the  appropriate  committees  of  the  Board  of

rience for the preceding eight quarters. Separate migration factors

Directors.  No  accounting  standards  with  significant  effects  on  our

are  determined  by  major  product  line,  such  as  indirect  automobile

financial condition or results of operations were initially adopted in

loans and direct consumer loans.

2005. 

3

 Financials_v5.qxd  2/24/06  3:46 PM  Page 4

Management’s Discussion and Analysis

Nonspecific  reserves  are  maintained  for  risks  beyond  those  factors

example, an increase in mortgage interest rates may decrease loan

specific to a particular loan or those identified by the migration mod-

prepayment  speeds,  but  may  increase  discount  rates  and  escrow

els. These factors include trends in the general economy in our pri-

earnings rates. Considering the effects on all related assumptions, a

mary lending areas, conditions in specific industries where we have a

50  basis  point  increase  in  mortgage  interest  rates  is  expected  to

concentration, such as energy, real estate and agriculture, and over-

increase  the  fair  value  of  our  servicing  rights  by  $3.1  million.  A  50

all growth in the loan portfolio. Evaluation of the nonspecific reserves

basis  point  decrease  in  mortgage  interest  rates  is  expected  to

also considers duration of the business cycle, regulatory examination

decrease the fair value of our servicing rights by $4.8 million.

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.

Permanent  impairment  of  mortgage  servicing  rights  is  evaluated

quarterly. A strata is considered to be permanently impaired if the net

amortized  cost  exceeds  the  calculated  fair  value  assuming  a  300

A separate reserve for off-balance sheet credit risk is maintained. The

basis point increase in the applicable interest rates. We believe that

provision for credit losses includes the combined charge to expense

a  300  basis  point  increase  in  mortgage  interest  rates  reasonably

for both the reserve for loan losses and the reserve for off-balance

represents changes that may occur under normal market conditions.

sheet credit losses. All losses incurred from lending activities will ulti-

The net amortized cost of the asset is reduced to the calculated fair

mately be reflected in charge-offs against the reserve for loan losses

value through a charge against the valuation allowance.

after  funds  are  advanced  against  outstanding  commitments  and

after the exhaustion of collection efforts. 

Valuation and Amortization of
Mortgage Servicing Rights

We have a significant investment in mortgage servicing rights. These

rights are either purchased from other lenders or retained from sales

Prepayment  assumptions  also  affect  the  amortization  of  mortgage

servicing rights. Amortization is determined in proportion to the pro-

jected cash flows over the estimated life of each loan serviced. The

same third party model that estimates prepayment speeds for deter-

mining the fair value of mortgage servicing rights determines the esti-

mated life of each loan serviced.

of loans we have originated. Mortgage servicing rights are carried at

Intangible Assets

the  lower  of  amortized  cost  or  fair  value.  Amortized  cost  and  fair

value  are  stratified  by  interest  rate  and  loan  type.  A  valuation

allowance  is  provided  when  the  net  amortized  cost  of  any  strata

exceeds the calculated fair value.

Intangible assets, which consist primarily of goodwill, core deposit in-

tangible assets and other acquired intangibles, for each business unit

are evaluated for impairment annually or more frequently if conditions

indicate that impairment may have occurred. The evaluation of possible

There is no active market for trading in mortgage servicing rights. We

impairment  of  intangible  assets  involves  significant  judgment  based

use a cash flow model to determine fair value. Key assumptions and

upon short-term and long-term projections of future performance.

estimates including projected prepayment speeds and assumed serv-

icing  costs,  earnings  on  escrow  deposits,  ancillary  income  and  dis-

count rates, used by this model are based on current market sources.

A separate third-party model is used to estimate prepayment speeds

based on interest rates, housing turnover rates, estimated loan cur-

tailment,  anticipated  defaults  and  other  relevant  factors.  The  pre-

payment model is updated daily for changes in market conditions. 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

must consider the effect on related assumptions to be meaningful. For

The fair value of each of our business units is estimated by the dis-

counted future earnings method. Income growth is projected over a

five-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.

At  December  31,  2005,  Bank  of  Texas  had  $155  million  or  66%  of

total goodwill and Colorado State Bank & Trust had $42 million or

18% of total goodwill. Because of the large concentration of goodwill

in these business units, 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.

4

 Financials_v5.qxd  2/24/06  3:46 PM  Page 5

Management’s Discussion and Analysis

Intangible  assets  with  finite  lives,  such  as  core  deposit  intangible

nation by the taxing authorities, expiration of a statute of limitations

assets,  are  amortized  over  their  estimated  useful  lives.  Such  assets

or  changes  in  facts  and  circumstances.  Additional  income  tax

are  reviewed  for  impairment  whenever  events  indicate  that  the

expense  would  be  recognized  from  the  adverse  resolution  of  an

remaining carrying amount may not be recoverable.

uncertain tax position.

Valuation of Derivative Instruments

Pensions

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. Interest rate, com-

modity and foreign exchange contracts used in our customer hedging

programs  are  based  on  valuations  generated  internally  by  a  third-

party provided pricing model. This model uses market inputs to esti-

mate fair values. Changes in assumptions used in this pricing model

could significantly affect the reported fair values of derivative assets

and liabilities, though the net effect of these changes should not sig-

nificantly  affect  earnings.  Fair  values  determined  by  the  internal

model  are  corroborated  by  comparison  against  third-party  dealer

provided values.

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.

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 juris-

dictions based upon these estimates, interpretations and judgments.

We recognize the benefit of uncertain tax positions when, based upon

all relevant evidence, it is more likely than not that our position would

prevail upon audit. A reserve for the uncertain portion of the tax ben-

efit is included in current accrued income taxes. This tax contingency

The Company offers a defined-benefit, cash-balance pension plan to

all employees who satisfy certain age and length of service require-

ments.  Accounting  for  this  plan  requires  management  to  make

assumptions regarding the expected long-term rate of return on plan

assets,  the  discount  rate  and  the  rate  of  future  compensation

increases. Changes in these assumptions affect pension liability and

pension  expense.  Management,  in  consultation  with  independent

actuaries, bases its assumptions on currently available information. 

All plan assets are invested in the American Performance 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 composition or objectives. The discount rate is

based on current yields of high quality fixed income securities such

as AA rated industrial and utility bonds. A 25 basis point decrease

in the discount rate increases the pension liability by approximately

$1.4  million  or  3%  and  pension  expense  by  approximately  $300

thousand or 5%. 

Stock-Based Compensation

Stock-based  compensation  consists  of  stock  options  and  non-vested

shares awarded to 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. Account-

ing  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 is considered a separate award when determining fair

value. 

reserve may reduce income tax expense in future periods if the uncer-

We use the Black-Scholes option pricing model. This model requires

tainty is favorably resolved, generally upon completion of an exami-

assumptions  of  expected  volatility  of  our  stock  price  and  expected

5

 Financials_v5.qxd  2/24/06  3:46 PM  Page 6

Management’s Discussion and Analysis

term between grant date and exercise date, along with other input to

determine  fair  value.  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 also based on historical trends. Information about assumptions

used to value stock options can be found in Note 13 to the Consoli-

dated  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.

Executive  incentive  plans  and  individual  employment  agreements

include  performance  conditions  that  may  increase  or  decrease  the

number of awards based on future events. Unrecognized compensa-

tion cost, which generally will be recognized as expense over the serv-

ice  period,  based  on  the  probable  outcome  of  these  conditions  is

$12.7  million.  Future  compensation  cost  ranges  from  approximately

$7.4 million, if none of the performance conditions are met, to $16.3

million if all of the performance conditions are met. 

Assessment of Operations

Net Interest Revenue

Tax-equivalent net interest revenue totaled $454.5 million for 2005

compared with $428.3 million for 2004. Net interest revenue growth

was  driven  primarily  by  a  $1.0  billion  increase  in  average  earning

assets. Average outstanding loans increased $846 million while aver-

age  securities  increased  $133  million.  Growth  in  average  earning

assets was funded primarily by a $1.2 billion increase in interest-bear-

ing  liabilities,  partially  offset  by  a  $198  million  decrease  in  average

demand deposit accounts. 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.

Yields on average earning assets and rates paid on average interest-

bearing liabilities both increased during 2005 due primarily to rising

short-term interest rates. Net interest margin, the ratio of tax-equiva-

lent  net  interest  revenue  to  average  earning  assets,  decreased  to

3.39% in 2005 compared with 3.45% in 2004. The decrease in net

interest margin reflected a flattened yield curve, the reduction in the

difference between short-term and long-term interest rates, and asset

spread compression.

6

 Financials_v5.qxd  2/24/06  3:46 PM  Page 7

Management’s Discussion and Analysis

Table 2 Volume/Rate Analysis

(In Thousands)

2005/2004

Change Due To1

2004/2003

Change Due To1

Change

Volume

Yield/Rate

Change

Volume

Yield/Rate

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

$ 7,983
141
146,735
934
155,793

37,204
131
28,632
40,466
16,513
6,606
129,552
26,241
(143)
$ 26,098

$ 5,232
(6)
50,282
475
55,983

6,936
(64)
10,101
7,301
(285)
4,659
28,648
$ 27,335

$ 2,751
147
96,453
459
99,810

30,268
195
18,531
33,165
16,798
1,947
100,904
$ (1,094)

$ 16,607
(38)
28,878
(91)
45,356

2,305
(19)
4,288
868
(743)
(110)
6,589
$ 38,767

$

$

(159)
(27)
3,647
163
3,624

1,866
50
4,014
4,682
1,768
(1,606)
10,774
(7,150)

$ 16,448
(65)
32,525
72
48,980

4,171
31
8,302
5,550
1,025
(1,716)
17,363
31,617
131
$ 31,748

4th Qtr 2005/4th Qtr 2004

Change Due To1

Change

Volume

Yield/Rate

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
Increase in tax-equivalent adjustment

$ 3,270
136
47,095
411
50,912

13,296
61
10,497
9,517
5,104
2,754
41,229
9,683
241
$ 9,924

$

992
116
18,137
198
19,443

3,847
(10)
4,920
504
365
2,044
11,670
$ 7,773

$ 2,278
20
28,958
213
31,469

9,449
71
5,577
9,013
4,739
710
29,559
$ 1,910

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

7

 Financials_v5.qxd  2/24/06  3:46 PM  Page 8

Management’s Discussion and Analysis

Management regularly models the effects of changes in interest rates

The effectiveness of these strategies is reflected in the overall change

on net interest revenue. Based on this modeling, we expect the effect

in net interest revenue due to changes in interest rates as shown in

of changes in interest rates on the Company’s earnings to be neutral

Table 2 and in the interest rate sensitivity projections as shown in the

over a one-year forward-looking period. However, other factors may

Market Risk section of this report.

affect this general expectation. For example, throughout 2005 the

spread between rates charged on loans and related funding sources

narrowed due to competitive pressures. The result was that the loan

Fourth Quarter 2005 Net Interest Revenue

portfolio’s  yield  increased  less  than  the  increase  in  market  interest

Tax-equivalent  net  interest  revenue  for  the  fourth  quarter  of  2005

rates. Additionally, we have a large portion of our securities portfolio

totaled $117.8 million compared with $108.1 million for the fourth quar-

in mortgage-backed securities. These securities reprice as cash flow

ter of 2004. Average earning assets increased $1.3 billion or 10%,

received is reinvested at current market rates. The resulting change

including a $1.1 billion increase in average loans outstanding. Growth

in yield of the securities portfolio occurs more slowly than changes in

in  average  earning  assets  was  funded  by  a  $1.8  billion  increase  in

market  rates.  The  tax-equivalent  yield  on  the  securities  portfolio

interest-bearing liabilities, including a $1.5 billion increase in average

increased 6 basis points over 2004. 

Our overall objective is to manage the Company’s balance sheet to

be essentially neutral to changes in interest rates. Approximately 71%

of our commercial loan portfolio is either variable rate or fixed rate

interest-bearing  deposits.  The  increase  in  interest-bearing  liabilities

also  funded  a  decrease  in  average  demand  deposits.  Net  interest

margin  was  3.34%,  down  4  basis  points  from  the  fourth  quarter  of

2004 due to changes in the funding mix and spread compression. 

that will reprice within one year. These loans are funded primarily by

Net interest margin for the fourth quarter of 2005 was reduced 3

deposit accounts that are either non-interest bearing, or that reprice

basis points by $299 million of average margin assets carried in sup-

more slowly than the loans. The result is a balance sheet that is asset

port of our derivatives business. We were required to place margin

sensitive,  which  means  that  assets  generally  reprice  more  quickly

collateral with counterparties as the fair value of our derivative liabil-

than liabilities. Among the strategies that we use to achieve a rate-

ities  increased  due  to  volatile  energy  prices.  Fees  earned  on  these

neutral position, we purchase fixed rate, mortgage-backed securities

margin assets, which totaled $3.4 million, are included in non-interest

and fund them with short-term borrowings. The average life of these

revenue while the related cost of funds is included in interest expense.

securities  is  expected  to  be  approximately  3.4  years  based  on  a

Margin assets averaged $126 million for the fourth quarter of 2004.

range of interest rate and prepayment assumptions. The funds bor-

Fees earned on these assets totaled $756 thousand.

rowed to purchase these securities generally reprice within 90 days.

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 $684 million

convert fixed rate liabilities to floating rate based on LIBOR. The pur-

pose of these derivatives, which generally have been designated as

fair value hedges, is to reduce the asset-sensitive nature of the bal-

ance sheet. Interest rate swaps with a notional amount of $100 mil-

lion  convert  prime-based  loans  to  fixed  rate.  The  purpose  of  these

derivatives, which have been designated as cash flow hedges, also is

2004 Net Interest Revenue

Tax-equivalent net interest revenue for 2004 was $428.3 million, a

$31.6  million  or  8%  increase  from  2003.  Average  earning  assets

increased  $885  million  or  8%,  including  a  $542  million  increase  in

average outstanding loans. As shown in Table 2, net interest revenue

increased $38.8 million due to changes in earning assets and inter-

est-bearing  liabilities.  Net  interest  revenue  growth  due  to  earning

assets was partially offset by a $7.2 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

to reduce the asset-sensitive nature of our balance sheet. 

other market conditions.

8

 Financials_v5.qxd  2/24/06  3:46 PM  Page 9

Management’s Discussion and Analysis

Other Operating Revenue

Other operating revenue increased $38.1 million compared with last

year due primarily to a $33.0 million increase in fees and commission

revenue. Other operating revenue for 2005 also included $7.1 million

of gains on asset sales. Diversified sources of fees and commission rev-

enue are a significant part of our business strategy and represented

43% of total revenue, excluding gains and losses on asset sales, secu-

rities and derivatives. We believe that a variety of fee revenue sources

provide an offset to changes in interest rates, values in the equity mar-

kets, 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,  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
Service charges and fees on deposit accounts
Mortgage banking revenue
Other revenue

Total fees and commissions

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

Total other operating revenue

2005
$ 44,222
72,036
65,187
98,361
30,681
35,114
345,601
7,061
(6,895)
1,179
$346,946

2004
$ 41,107
64,816
57,532
93,712
28,189
27,209
312,565
887
(3,088)
(1,474)
$308,890

Years ended December 31,

2003
$ 41,152
57,352
45,763
82,042
52,336
27,573
306,218
822
7,188
(9,375)
$304,853

2002
$ 26,290
52,213
40,092
67,632
48,910
22,424
257,561
1,157
58,704
5,236
$322,658

2001
$ 19,974
44,231
40,567
51,284
50,155
23,252
229,463
557
30,640
(3,812)
$256,848

Fees and Commissions Revenue

Trust fees increased $7.7 million or 13%. The fair value of all trust rela-

tionships overseen by the Company, which is the basis for a signifi-

cant portion of trust fees, increased to $28.5 billion at December 31,

2005 compared with $24.6 billion at December 31, 2004. Approxi-

mately 31% of trust fees are earned on personal trust relationships.

Additionally, 21% of trust fees are earned by providing employee ben-

efit plan services and 20% are based on mutual fund activities. 

Transaction  card  revenue  increased  $7.2  million  or  11%.  Merchant

discount  fees  and  check  card  revenue  increased  11%  and  32%,

respectively. Revenue growth from each of these activities was due

to  growth  in  transaction  volume.  Merchant  locations  serviced

increased by 485 or 7%, including 179 new merchant locations in Ari-

zona  and  Colorado.  The  number  of  check  card  transactions

processed during 2005 increased 17% over 2004. ATM fees grew

at 3% compared to 2004. As previously disclosed, the growth rate

in ATM fees was expected to slow for 2005. One of our customers

Service  charges  on  deposit  accounts  increased  $4.6  million  or  5%

compared with 2004. Overdraft fees increased 16% to $62.7 million

while account service charge revenue decreased 12% to $28.6 million.

The volume of overdraft items processed increased in 2005. Addi-

tionally, the per item overdraft charge was increased in the second

quarter of 2005. The decrease in service charge revenue reflected

an  increase  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 serv-

ices, increases when interest rates rise. 

Brokerage  and  trading  revenue  grew  $3.1  million  or  8%  compared

with 2004. Revenue from customer hedging activities increased $2.4

million, including $2.1 million from energy hedging activities. Volatility

in the energy markets during 2005 prompted our energy customers

to more actively hedge their gas and oil production. Retail brokerage

revenue increased $742 thousand or 6% over 2004. Securities trad-

ing revenue was $23.5 million, unchanged from the previous year.

was purchased by another financial institution in 2004.

Volatility in the energy markets increased the fair value of derivative

assets  and  liabilities  and  required  the  Company  to  pledge  margin

9

 Financials_v5.qxd  2/24/06  3:46 PM  Page 10

Management’s Discussion and Analysis

assets to secure obligations. Fees earned on margin assets, which are

Fourth Quarter 2005 Other Operating Revenue

recognized in other revenue, totaled $7.1 million in 2005, compared

with $686 thousand in 2004.

Gains on Sales of Assets

The Company recognized net gains on asset sales of $7.1 million in

2005, including $4.8 million from the sale of its interest in an Okla-

homa City office building and $1.2 million from the sale of loans from

the community development mortgage loan portfolio. In addition to a

Other  operating  revenue  for  the  fourth  quarter  of  2005  totaled

$87.3  million,  an  $8.6  million  or  11%  increase  from  2004.  Fees  and

commissions revenue increased $11.1 million or 14%. All business lines

contributed to this increase. Transaction card revenue, deposit fees

and  trust  fees  increased  $2.4  million,  $1.9  million  and  $1.7  million,

respectively.  Other  operating  revenue  included  $3.4  million  of  fees

earned on margin assets. 

cash premium received on the loan sale, we retained both the right to

2004 Other Operating Revenue

service the loans and a recourse obligation to the purchaser for bor-

rower defaults. A servicing asset of $1.6 million and a recourse liabil-

ity of $888 thousand were recognized in conjunction with this sale.

Securities and Derivatives

Aggregate net losses on securities and derivatives totaled $5.7 mil-

lion  in  2005  and  $4.6  million  in  2004.  Net  losses  on  securities

totaled  $6.9  million  in  2005,  consisting  of  losses  of  $5.2  million  on

securities held as economic hedges of mortgage servicing rights and

$1.7 million on other securities. Net losses on securities held as an eco-

Other operating revenue totaled $308.9 million for 2004, up $4.0

million from 2003. Fees and commissions revenue increased $6.3 mil-

lion or 2%. Strong growth in trust fees, transaction card revenue and

deposit fees was partially offset by lower mortgage banking revenue.

Mortgage banking revenue decreased $24.1 million due primarily to

reduced loan refinancing activity.

Net losses on securities totaled $3.1 million, including losses of $4.9

million on securities held as economic hedges of mortgage servicing

rights and gains of $1.8 million on sales of other securities. 

nomic  hedge  included  $420  thousand  of  other-than-temporary

During 2004, the Company recognized net losses of $1.3 million on

impairment at December 31, 2005. The Company’s use of securities

derivatives used to manage interest rate risk and $208 thousand on

as an economic hedge of mortgage servicing rights is more fully dis-

derivatives  used  as  economic  hedges  of  mortgage  servicing  rights.

cussed  in  the  Line  of  Business  —  Mortgage  Banking  section  of  this

The Company designated derivatives as fair value hedges of certain

report. Other securities are bought and sold as necessary to maxi-

brokered certificates of deposit and subordinated debt in 2004. Net

mize the portfolio’s total return and to manage prepayment or exten-

losses recognized included fair value adjustments for both the deriv-

sion risk.

atives and the hedged liabilities. 

Net gains on derivatives totaled $1.2 million in 2005, including net

gains of $1.1 million from fair value adjustments of derivatives used to

manage interest rate risk and related hedge liabilities. Additionally,

net gains on derivatives included $108 thousand of gains realized on

derivatives used as an economic hedge of mortgage servicing rights.

The Company’s use of derivatives to manage interest rate risk is more

fully discussed in the Deposits and Borrowings and Capital sections

of this report. 

Other Operating Expense

Other  operating  expense  for  2005  totaled  $469.1  million,  a  6%

increase from 2004. This increase resulted primarily from personnel

and  data  processing  expenses.  Growth  in  personnel  expenses  was

driven  largely  by  employment  growth  and  an  increase  in  average

compensation  per  employee.  The  increase  in  data  processing

expenses included both transaction volume and system maintenance

costs. 

10

 Financials_v5.qxd  2/24/06  3:46 PM  Page 11

Management’s Discussion and Analysis

Table 4 Other Operating Expense

(In Thousands)

Personnel expense
Business promotion
Contribution of stock to BOK Charitable Foundation
Professional fees and services
Net occupancy and equipment
Data processing and communications
Printing, postage and supplies
Net (gain) loss and operating expenses on

repossessed assets

Amortization of intangible assets
Mortgage banking costs
Provision (recovery) for impairment of

mortgage servicing rights

Other expense
Total

2005
$258,971
17,964
—
16,596
50,195
67,026
15,066

572
6,943
14,562

(3,915)
25,126
$469,106

2004
$240,661
15,618
5,561
15,487
47,289
60,025
14,034

(4,016)
8,138
18,167

(1,567)
21,827
$441,224

Years ended December 31,
2003
$222,922
12,937
—
17,935
45,967
53,398
13,930

271
8,101
40,296

(22,923)
20,604
$413,438

2002
$187,439
11,367
—
12,987
42,347
45,912
12,665

1,014
7,638
42,271

45,923
19,991
$429,554

2001
$166,864
10,658
—
13,391
42,764
39,763
12,329

1,401
20,113
30,261

15,551
18,968
$372,063

Personnel Expense

to participate in liability award plans. Additional information about

our  stock-based  compensation  plans  is  provided  in  Note  13  to  the

Personnel  expense  increased  $18.3  million  or  8%  to  $259.0  million.

Regular compensation expense totaled $162.7 million, a $16.0 million

Consolidated Financial Statements. 

or  11%  increase  over  2004.  The  increase  in  regular  compensation

Employee benefit expenses increased $5.8 million or 15% to $43.6 mil-

expense was due to a 6% increase in average regular compensation

lion. Employee insurance costs increased $2.6 million or 20% due pri-

per  full-time  equivalent  employee  and  a  5%  increase  in  average

marily to growth in medical claims. The Company self-insures a por-

staffing.

tion of its employee health care coverage. Retirement benefit costs,

which include both thrift and pension plan expenses, increased $1.7

Incentive compensation, which includes both cash-based and stock-

based plans, decreased $4.6 million or 8% to $49.8 million. The Com-

million or 16%. 

pany offers numerous incentive compensation plans that are aligned

During the fourth quarter of 2005, our Board of Directors approved

with  the  Company’s  growth  strategy.  Cash  settlements  paid  under

modifications  to  both  the  thrift  and  pension  plans.  These  modifica-

these plans may be based on defined formulas, other performance

tions will become effective April 1, 2006. The purpose of these modi-

criteria or discretionary. Incentive compensation is designed to moti-

fications  is  to  provide  retirement  benefits  that  align  with  the  Com-

vate and reinforce sales and customer service behavior in all of our

pany’s  strategy  of  rewarding  long-term,  superior  performance,  that

markets.  Variations  of  the  plans  are  used  in  targeted  geographic

are  easily  understood  and  that  increase  employee  ownership  and

markets and lines of business where exceptional growth potential is

control over their retirement. These modifications consist primarily of

expected. The effectiveness of all plans and their alignment with the

enhanced  Company  contributions  to  the  thrift  plans  and  curtailed

Company’s objectives are reviewed annually with executive manage-

benefit accruals to the pension plan. A charge of $384 thousand was

ment. Incentive compensation expenses related to these cash-based

recognized in 2005 for the curtailment of the pension plan. The com-

plans increased $2.0 million or 5%. 

bined effects of these modifications are not expected to have a sig-

Stock-based compensation expense decreased $6.6 million or 56%.

nificant impact on future earnings or liquidity. 

The Company’s stock-based compensation plans include both equity

The Company will continue to have a funding obligation to the pension

awards and liability awards. Compensation expense associated with

plan and will continue to recognize pension expense based on plan

liability award plans decreased $8.4 million. This decrease reflected

asset performance, discount rates and other factors. At December 31,

a decrease in the market value of BOK Financial common stock at

2005, prepaid pension expense totaled $21.9 million, consisting of $1.3

December  31,  2005  compared  with  December  31,  2004,  and  a

million  of  net  plan  assets  in  excess  of  liabilities  and  $20.6  million  of

reduction in the number of executive officers of the Company eligible

unrecognized actuarial losses. These losses will be recognized in future

11

 Financials_v5.qxd  2/24/06  3:46 PM  Page 12

Management’s Discussion and Analysis

years based on the lesser of the average remaining service periods or

Personnel costs increased $17.7 million or 8%. Regular compensation

10 years. These unrecognized losses may also be increased or reduced

increased $8.0 million or 6% due primarily to a 5% increase in aver-

by plan asset performance and discount rate changes.

age regular compensation per employee and a 1% increase in aver-

Data Processing and Communications Expense

lion,  including  a  $5.9  million  increase  in  stock-based  compensation.

age staffing. Additionally, incentive compensation increased $8.6 mil-

Data processing and communication expenses increased $7.0 million

or 12% compared to 2004. This expense consists of two broad cate-

gories,  data  processing  systems  and  transaction  card  processing.

Data processing systems costs increased $3.5 million or 10% due pri-

Much of this expense is related to stock-based compensation that is

recognized  as  liability  awards.  Compensation  expense  for  these

awards is based on the excess of the fair value of BOK Financial com-

mon stock over a set exercise price. 

marily  to  increased  maintenance  and  communications  costs.  Trans-

Data processing and communication expenses increased $6.6 million

action  card  processing  costs  increased  $3.5  million  or  15%  due  to

or 12%. Transaction card processing costs increased $4.6 million or

growth in processing volumes. The number of transactions processed

25%  due  to  processing  volumes.  Data  processing  systems  costs

during 2005 increased 17% over 2004.

increased $2.0 million or 6% due primarily to maintenance costs. 

Other Operating Expenses

BOK Financial contributed appreciated securities to the BOk Chari-

table Foundation during 2004. The Foundation supports communi-

Business promotion expense increased $2.3 million or 15% compared

ties in the markets served by the Company. The cost basis in these

with last year. Promotional activities in support of consumer banking

securities  of  $5.6  million  was  charged  to  operating  expense.  The

initiatives accounted for $1.5 million of the increase. 

after-tax cost of these contributions reduced net income by $1.1 mil-

Mortgage  banking  expenses,  including  provision  for  impairment  of

lion, or 2 cents per diluted share.

mortgage  servicing  rights,  decreased  $6.0  million.  These  expenses

Business promotion expense increased $2.7 million or 21% compared

are discussed more fully in the Line of Business — Mortgage Banking

with last year. Promotional activities in support of consumer banking

section of this report.

initiatives  accounted  for  $1.5  million  of  the  increase.  Much  of  the

growth  in  promotional  expenses  was  targeted  at  demand  deposit

Fourth Quarter 2005 Operating Expenses

growth through our consumer banking network.

Operating  expenses  for  the  fourth  quarter  of  2005  totaled  $123.9

Net  gains  from  the  sale  of  repossessed  assets  totaled  $4.0  million

million,  up  11%  over  the  same  period  in  2004.  Personnel  costs

including $3.8 million from the sale of stock acquired several years

increased  $6.5  million  or  11%.  Regular  compensation  expense

ago as partial proceeds of the sale of a troubled loan.

increased $4.7 million or 12% due to a 5% increase in average com-

pensation per employee and a 7% increase in staffing. Data process-

ing  and  communication  expense  grew  $2.9  million  or  19%  due  to

Income Taxes

increases of $1.5 million in data processing costs and $1.4 million in

Income  tax  expense  was  $113.2  million  for  2005,  $91.4  million  for

transaction  card  processing  costs.  Both  increases  reflect  growth  in

2004 and $88.9 million for 2003. This represented 36%, 34% and

processing volumes.

2004 Operating Expenses

36%,  respectively,  of  book  taxable  income.  Tax  expense  currently

payable totaled $112.7 million in 2005 compared with $91.3 million in

2004 and $82.6 million in 2003. 

Operating expenses for 2004 totaled $441.2 million, a 7% increase

Income tax expense for 2004 was reduced by $3.0 million due to the

from 2003. This increase resulted primarily from personnel and data

favorable  resolution  of  state  income  tax  issues  and  by  $2.4  million

processing costs. Growth in personnel costs were driven largely by

from the contribution of appreciated securities to the BOk Charitable

the Colorado State Bank & Trust acquisition and stock-based com-

Foundation. Excluding these items, income tax expense would have

pensation costs. The increase in data processing costs included both

been $96.9 million or 36% of book taxable income.

transaction volume and system maintenance costs. 

12

 Financials_v5.qxd  2/24/06  3:46 PM  Page 13

Management’s Discussion and Analysis

Table 5 Selected Quarterly Financial Data
(In Thousands Except Per Share Data)

Interest revenue 
Interest expense  
Net interest revenue  
Provision for credit losses  
Net interest revenue after provision for credit losses  
Other operating revenue  
Gain (loss) on securities, net  
Gain (loss) on derivatives, net  
Other operating expense   
Provision (recovery) for impairment of mortgage

servicing rights
Income before taxes  
Income tax expense  
Net income  

Earnings per share:

Basic
Diluted

Average shares:

Basic
Diluted

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
Provision (recovery) for impairment of mortgage

servicing rights
Income before taxes
Income tax expense
Net income

Earnings per share:

Basic
Diluted

Average shares:

Basic
Diluted

Fourth

Third

Second

First

2005

$214,240
97,854
116,386
4,450
111,936
89,018
(1,780)
106
124,611

(708)
75,377
27,219
$ 48,158

$199,056
86,228
112,828
3,976
108,852
90,993
(4,744)
606
121,705

(4,671)
78,673
27,846
$ 50,827

$186,334
73,801
112,533
2,015
110,518
92,636
2,266
(311)
118,922

7,088
79,099
28,634
$ 50,465

$170,304
62,710
107,594
2,000
105,594
80,015
(2,637)
778
107,783

(5,624)
81,591
29,536
$ 52,055

$
$

0.72
0.72

$
$

0.77
0.76

$
$

0.79
0.75

$
$

0.87
0.78

66,527
67,147

66,427
67,106

63,779
66,986

59,433
66,947

$163,087
56,625
106,462
4,439
102,023
77,921
967
(174)
111,887

(305)
69,155
22,599
$ 46,556

$157,027
48,642
108,385
4,986
103,399
78,919
2,673
(506)
108,302

5,900
70,283
22,501
$ 47,782

2004

$147,833
42,644
105,189
3,987
101,202
80,074
(11,005)
201
109,857

(10,865)
71,480
25,947
$ 45,533

$146,337
43,130
103,207
7,027
96,180
76,538
4,277
(995)
112,745

3,703
59,552
20,400
$ 39,152

$
$

0.78
0.70

$
$

0.79
0.72

$
$

0.76
0.68

$
$

0.66
0.59

59,251
66,895

59,198
66,803

59,147
66,720

59,051
66,672

13

 Financials_v5.qxd  2/24/06  3:46 PM  Page 14

Management’s Discussion and Analysis

Lines of Business

As shown in Table 6, regional banking continued to increase its con-

tribution  to  consolidated  net  income.  The  growth  of  the  regional

BOK  Financial  operates  five  principal  lines  of  business:  Oklahoma

banking segment is consistent with our corporate strategy of expan-

corporate banking, Oklahoma consumer banking, mortgage banking,

sion into high growth markets outside of Oklahoma. The Oklahoma

wealth management and regional banking. Mortgage banking activ-

consumer  banking  unit’s  contribution  to  consolidated  earnings

ities include loan origination and servicing across all markets served

increased  significantly  in  2005.  Rising  short-term  interest  rates

by the Company. Wealth management provides brokerage and trad-

increased  the  internal  transfer  pricing  credit  provided  to  units  that

ing, private financial services and investment advisory services in all

generate lower-costing funds for the Company. 

markets. It also provides fiduciary services in all markets except Col-

orado. Fiduciary services in Colorado are included in regional bank-

ing. Regional banking consists primarily of corporate and consumer

banking  activities  in  the  respective  local  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. 

BOK Financial allocates resources and evaluates performance of its

lines of business after allocation of funds, certain indirect expenses,

taxes 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  90

days for certain rate-sensitive deposits to five years. 

Table 6 Net Income by Line of Business

(In Thousands)

Oklahoma corporate banking
Oklahoma consumer banking
Mortgage banking
Wealth management
Regional banking

Subtotal

Funds management and all other

Total

Years ended December 31,
2004
$ 61,956
11,854
2,681
13,587
57,706
147,784
31,239
$179,023

2003
$ 57,631
8,928
28,401
14,517
41,673
151,150
7,210
$158,360

2005
$ 73,625
24,183
2,182
17,890
77,344
195,224
6,281
$201,505

Oklahoma Corporate Banking

The Oklahoma Corporate Banking Division provides loan and lease

financing and treasury and cash management services to businesses

throughout  Oklahoma  and  certain  relationships  in  surrounding

states. In addition to serving the banking needs of small businesses,

middle  market  and  larger  customers,  this  division  has  specialized

groups  that  serve  customers  in  the  energy,  agriculture,  healthcare

and  banking/finance  industries,  and  includes  TransFund,  our  elec-

tronic  funds  transfer  network.  The  Oklahoma  Corporate  Banking

Division contributed $73.6 million or 37% to consolidated net income

for 2005, including an after-tax gain of $2.9 million from the sale of

the  Company’s  interest  in  an  Oklahoma  City  office  building.  This

compares  to  $62.0  million  or  35%  of  consolidated  net  income  for

Economic capital is assigned to the business units by a capital allo-

2004. Net interest revenue increased $7.4 million or 6% due prima-

cation  model  that  reflects  management’s  assessment  of  risk.  This

rily to asset growth. Average assets attributed to this division, which

model  assigns  capital  based  upon  credit,  operating,  interest  rate

consist primarily of commercial loans, increased $249 million or 6%

and  market  risk  inherent  in  our  business  lines  and  recognizes  the

over 2004. Operating revenue grew $6.2 million or 7%. TransFund

diversification benefits among the units. The level of assigned eco-

provided $3.1 million of the increase in operating revenue. Operating

nomic  capital  is  a  combination  of  the  risk  taken  by  each  business

expenses, which consist primarily of personnel and data processing

line, based on its actual exposures and calibrated to its own loss his-

costs, increased 4%. Growth in net income also reflected a $4.2 mil-

tory  where  possible.  Additional  capital  is  assigned  to  the  regional

lion decrease in net loan charge-offs. 

banking line of business based on our investment in those entities. 

14

 Financials_v5.qxd  2/24/06  3:46 PM  Page 15

Management’s Discussion and Analysis

Table 7 Oklahoma Corporate Banking

Table 8 Oklahoma Consumer Banking

(Dollars in Thousands)

(Dollars in Thousands)

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

Total net interest

revenue

Other operating

revenue

Gain on sale of assets
Operating expense
Net loans charged

off

Net income

Years ended December 31,
2004

2003

2005

$ 191,040

$ 148,919 $ 140,818

(60,735)

(26,049)

(25,924)

130,305

122,870

114,894

92,707
4,758
102,513

86,493
—
99,007

77,332
—
87,585

4,757
73,625

$

8,956
61,956 $

10,318
57,631

$

Average assets
Average economic capital

$4,629,400
322,440

$4,380,491 $4,106,441
311,140

312,530

Return on assets
Return on economic capital
Efficiency ratio

1.59%

22.83
45.01

1.41%

19.82
47.29

1.40%

18.52
45.56

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

Total net interest

revenue

Other operating

revenue

Operating expense
Net loans charged

off

Net income

Years ended December 31,
2004

2003

2005

$ (25,140)

$ (19,061) $ (17,188)

87,421

64,873

58,261

62,281

45,812

41,073

66,266
84,336

56,611
76,057

47,229
66,798

4,632
24,183

$

6,964
11,854 $

$

6,892
8,928

Average assets
Average economic capital

$2,988,218
69,810

$2,746,279 $2,525,060
58,000

64,390

Return on assets
Return on economic capital
Efficiency ratio

0.81%

34.64
65.61

0.43%

18.41
74.26

0.35%

15.39
75.65

Oklahoma Consumer Banking

Mortgage Banking

The  Oklahoma  Consumer  Banking  Division  provides  a  full  line  of

BOK Financial engages in mortgage banking activities through the

deposit, loan and fee-based services to customers throughout Okla-

BOk  Mortgage  Division  of  Bank  of  Oklahoma.  These  activities

homa through four major distribution channels: traditional branches,

include the origination, marketing and servicing of conventional and

supermarket branches, the 24-hour ExpressBank call center and the

government-sponsored mortgage loans. Mortgage banking activities

Internet.  Additionally,  the  division  is  a  significant  referral  source  for

contributed  $2.2  million  to  consolidated  net  income  in  2005  com-

the  Bank  of  Oklahoma  Mortgage  Division  (“BOk  Mortgage”)  and

pared to $2.7 million in 2004. Net income for 2005 included $753

BOSC’s retail brokerage division. This division contributed $24.2 mil-

thousand from the sale of mortgage loans from the Company’s com-

lion or 12% to consolidated net income for 2005. This compares to

munity development loan portfolio.

Mortgage banking activities consist of two sectors, loan production

and  loan  servicing.  The  loan  production  sector  generally  performs

best when mortgage rates are relatively low and loan origination vol-

umes  are  high.  Conversely,  the  loan  servicing  sector  generally  per-

forms best when mortgage rates are relatively high and prepayments

are low. 

$11.9 million or 7% of consolidated net income for 2004. Net interest

revenue grew $16.5 million or 36% compared with 2004 due prima-

rily to an increase in the internal transfer pricing credit. Additionally,

average  deposits  provided  by  the  Oklahoma  Consumer  Banking

Division  grew  $158  million  or  6%.  Other  operating  revenue  growth

from 2004 resulted largely from check card revenue and overdraft

fees. 

During 2005, growth initiatives focused on building customer rela-

tionships through sales promotions, Perfect Banking sales and serv-

ice  standards  and  free  on-line  BillPay  services.  These  initiatives

resulted  in  a  6%  increase  in  average  consumer  deposits,  a  10%

increase in checking accounts and a 54% increase in the number of

on-line  BillPay  users.  Oklahoma  Consumer  Banking  Division  also

added one new supermarket location.

15

 Financials_v5.qxd  2/24/06  3:46 PM  Page 16

Management’s Discussion and Analysis

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

Total net interest

revenue

Capitalized mortgage
servicing rights

Other operating

revenue

Gain on sale of assets
Operating expense
Recovery for

impairment of mortgage
servicing rights

Gain (loss) on
financial
instruments, net

Net income

Table 9 Mortgage Banking

(Dollars in Thousands)

Years ended December 31,
2004

2003

2005

$ 20,392

$ 21,647

$ 27,770

2004.  Operating  results  of  the  loan  servicing  sector  are  greatly

affected  by  the  effect  of  changes  in  interest  rates  on  prepayment

speeds and the value of mortgage servicing rights. Mortgage interest

rates  changed  little  during  2005.  In  this  rate  environment,  the  fair

value  of  our  mortgage  servicing  rights  appreciated  modestly.  The

resulting recovery of provision for mortgage servicing rights was $3.9

(14,979)

(11,423)

(9,415)

million in 2005, compared with a provision recovery of $1.6 million in

5,413

10,224

18,355

2004. 

17,402

11,365

23,922

Servicing  revenue  totaled  $16.3  million  in  2005  compared  to  $17.8

16,427
1,232
35,315

22,055
—
35,415

36,379
—
58,204

million in 2004. The decrease in servicing revenue was due primarily

to a lower outstanding principal balance of loans serviced. The aver-

age outstanding balance of loans serviced for others was $3.6 billion

during 2005 compared to $3.9 billion during 2004. The decrease in

(3,915)

(1,567)

(22,923)

loans  serviced  reflected  our  decision  to  curtail  purchases  of  mort-

(5,087)
$ 2,182

(5,068)
$ 2,681

4,025
$ 28,401

Average assets
Average economic capital

$526,224
24,210

$559,034
27,270

$623,823
34,120

Return on assets
Return on economic capital
Efficiency ratio

0.41%
9.01
87.25

0.48%
9.83
81.15

4.55%

83.24
74.00

Loan Production Sector

gage loan servicing outside our market area. Servicing revenue per

outstanding loan principal was 42 basis points in 2005 compared

with 45 basis points in 2004. Approximately 80% of loans serviced

was in our primary market areas at December 31, 2005 and Decem-

ber 31, 2004. 

Subsequent to December 31, 2005, we agreed to purchase a $480

million mortgage loan servicing package for approximately $7 million.

Substantially all of the loans are within our primary market area. This

purchase is expected to close by the end of the first quarter of 2006.

Loan production revenue totaled $17.6 million in 2005, including $17.4

million  of  capitalized  mortgage  servicing  rights,  compared  to  loan

production revenue of $20.9 million in 2004, including $11.4 million of

capitalized  mortgage  servicing  rights.  Mortgage  loans  funded

totaled  $910  million  in  2005,  including  $664  million  for  home  pur-

Amortization of mortgage servicing rights, which is included in oper-

ating expense, was $12.9 million in 2005 compared to $15.8 million in

2004. Amortization expense is determined in proportion to the esti-

mated future cash flows that will be generated by the mortgage serv-

icing rights. The decrease in amortization expense in 2005 reflected

chases and $246 million of refinanced loans. Mortgage loans funded

an expectation of slower loan prepayment speeds.

in  2004  totaled  $893  million,  including  $587  million  for  home  pur-

chases and $306 million of refinanced loans. Approximately 69% of

the loans funded during 2005 were in Oklahoma. Growth initiatives

for the loan production sector include a program to hire experienced

originators in markets outside of Oklahoma to boost production. Pre-

tax income from loan production totaled $5.6 million for 2005 com-

pared with $6.7 million for the previous year end. The pipeline of mort-

gage loan applications totaled $233 million at December 31, 2005,

compared to $189 million at December 31, 2004.

Loan Servicing Sector

The valuation allowance for impairment of mortgage servicing rights

totaled $7 million at December 31, 2005 compared to $14 million at

December 31, 2004. Increased fair value of our servicing rights was

the primary reason for the reduction in the valuation allowance. The

valuation  allowance  was  also  reduced  by  $2.4  million  from  the

charge-off of servicing rights determined to be permanently impaired.

As discussed in the Critical Accounting Policies section of this report,

servicing rights are considered to be permanently impaired if the fair

value does not exceed amortized costs after assuming a 300 basis

point increase in mortgage interest rates. Note 8 to the Consolidated

Financial Statements presents additional information about the fair

The loan servicing sector had a pre-tax loss of $3.2 million for 2005

value  and  amortized  costs  of  servicing  rights  and  valuation

compared  to  a  pre-tax  loss  of  $4.3  million  for  the  same  period  of

allowance. 

16

 Financials_v5.qxd  2/24/06  3:46 PM  Page 17

Management’s Discussion and Analysis

BOK Financial designates a portion of its securities portfolio as an

point increase in rates is expected to increase value by $3.1 million

economic  hedge  against  the  risk  of  loss  on  its  mortgage  servicing

while a 50 basis point decrease is expected to reduce value by $4.8

rights.  Mortgage-backed  securities  and  U.S.  government  agency

million. This considers that there is an upper limit to appreciation in

debentures  are  acquired  and  held  as  available  for  sale  when  pre-

the value of servicing rights as rates rise due to the contractual repay-

payment  risks  exceed  certain  levels.  Additionally,  mortgage-related

ment terms of the loans and other factors. There is much less of a limit

derivative contracts may also be designated as an economic hedge

on the speed at which mortgage loans may prepay in a declining rate

of the risk of loss on mortgage servicing rights. Because the fair val-

environment.

ues  of  these  instruments  are  expected  to  vary  inversely  to  the  fair

value of the servicing rights, they are expected to partially offset risk.

However,  no  special  hedge  accounting  treatment  is  applicable  to

Wealth Management

either the mortgage servicing rights or the financial instruments des-

BOK Financial provides a wide range of financial services through its

ignated as an economic hedge. Derivative contracts used to hedge

wealth  management  line  of  business,  including  trust  and  private

mortgage servicing rights are carried at fair value with changes in fair

financial services, and brokerage and trading activities. This line of

value recognized in earnings. We recognized net losses of $1.2 million

business includes the activities of BOSC, Inc., a registered broker /

in 2005 and $3.5 million in 2004 from changes in the value of mort-

dealer.  Trust  and  private  financial  services  includes  sales  of  institu-

gage servicing rights and economic hedging activities.

tional, investment and retirement products, loans and other services

This hedging strategy presents certain risks. A well-developed market

determines the fair value for the securities and derivatives. However,

there is no comparable market for mortgage servicing rights. There-

fore, the computed change in value of the servicing rights for a spec-

ified change in interest rates may not correlate to the change in value

of the securities. 

At December 31, 2005, financial instruments with a fair value of $49

million and an unrealized gain of $52 thousand were held for the eco-

nomic hedge program. This unrealized gain, net of income taxes, is

included  in  shareholders’  equity  as  part  of  other  comprehensive

income. The interest rate sensitivity of the mortgage servicing rights

and securities held as a hedge is modeled over a range of +/– 50

basis points. At December 31, 2005, the pre-tax results of this mod-

eling on reported earnings are shown in Table 10:

Table 10 Interest Rate Sensitivity —
Mortgage Servicing
(Dollars in Thousands)

Anticipated change in:

Fair value of mortgage

servicing rights

Fair value of hedging securities

Net

50 bp
Increase

50 bp
Decrease

$3,113
(1,915)
$1,198

$(4,763)
2,112
$(2,651)

Table 10 shows the non-linear effect of changes in mortgage com-

mitment rates on the value of mortgage servicing rights. A 50 basis

to  affluent  individuals,  businesses,  not-for-profit  organizations,  and

governmental  agencies.  Trust  services  are  provided  primarily  to

clients  throughout  Oklahoma,  Texas  and  New  Mexico.  Additionally,

trust  services  include  a  nationally  competitive,  self-directed  401(k)

program and administrative and advisory services to the American

Performance family of mutual funds. Brokerage and trading activities

within the wealth management line of business consist of retail sales

of mutual funds, securities, and annuities, institutional sales of securi-

ties and derivatives, bond underwriting and other financial advisory

services.  Customer  hedging  programs  were  combined  into  the

Wealth Management Division in 2005. Prior years’ results have been

reclassified for consistency. 

Wealth Management contributed $17.9 million or 9% to consolidated

net income for 2005. This compared to $13.6 million or 8% of con-

solidated net income for 2004.  Trust and private financial services

provided $15.6 million of net income in 2005, a $4.9 million or 46%

increase over 2004. The increased contribution by trust and private

financial services is attributable primarily to trust fees. At December

31, 2005 and 2004, the wealth management line of business was

responsible for trust assets with aggregate market values of $26.0

billion and $22.6 billion, respectively, under various fiduciary arrange-

ments. The growth in trust assets reflected increased market value of

assets  managed  in  addition  to  new  business  generated  during  the

year. We have sole or joint discretionary authority over $10.0 billion

of trust assets at December 31, 2005 compared to $8.2 billion of trust

assets at December 31, 2004. The fair value of assets held in custody

17

 Financials_v5.qxd  2/24/06  3:46 PM  Page 18

Management’s Discussion and Analysis

by  the  Wealth  Management  Division  increased  $1.6  billion  or  33%

Texas growth resulted from an increase in net interest revenue. Net

while the fair value of non-managed assets remained unchanged at

interest  revenue  increased  $21.6  million  or  19%.  Average  earning

$9.4 billion. 

Brokerage and trading activities provided $2.3 million of net income

in 2005 compared to $2.9 million in the previous year. Operating rev-

enue increased $1.5 million or 4% due primarily to customer hedging

programs. Operating expenses, which consisted primarily of compen-

sation expense, increased $2.1 million or 5%.

Table 11 Wealth Management

(Dollars in Thousands)

assets increased $274 million, including $293 million of loans partially

offset by a reduction in securities and funds sold to the funds man-

agement unit. The growth in average earning assets was funded by

a $115 million increase in interest-bearing deposits and a $77 million

increase  in  demand  deposits.  Company  initiatives  to  support  loan

growth  included  hiring  additional  middle  market  lending  talent  in

Houston and expanding the energy lending staff in both Houston and

Dallas. Operating expenses increased $8.6 million or 12% due prima-

rily to a $6.5 million increase in personnel costs.

Years ended December 31,
2004

2003

2005

Net income growth from our New Mexico operations was also based

largely  on  an  increase  in  net  interest  revenue,  combined  with  an

$

5,651

$

4,001 $ 1,966

increase in operating revenue. Average loans increased $62 million

11,208

8,888

8,939

compared  with  2004  while  average  funds  sold  to  the  funds  man-

agement  unit  decreased  $82  million.  Average  deposits  in  the  New

16,859

12,889

10,905

Mexico market grew $74 million, including $59 million of interest-bear-

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

Total net interest

revenue

Other operating

revenue

Operating expense
Net income

100,647
88,001
17,890

$

93,757
93,193
80,512
83,784
13,587 $ 14,517

$

Average assets
Average economic capital

$1,503,886
106,040

$1,122,147 $875,661
69,690

84,820

Return on assets
Return on economic capital
Efficiency ratio

1.19%

16.87
74.89

1.21%

16.02
78.98

1.66%

20.83
76.93

Regional Banking

Regional banking consists primarily of the corporate and commercial

banking services provided by Bank of Texas, Bank of Albuquerque,

Bank of Arkansas, Colorado State Bank and Trust and Bank of Ari-

zona  in  their  respective  markets.  It  also  includes  fiduciary  services

provided  by  Colorado  State  Bank  and  Trust.  Small  businesses  and

middle-market corporations are the regional banks’ primary customer

focus. Regional banking contributed $77.3 million or 38% to consoli-

dated net income during 2005. This compares with $57.7 million or

32% of consolidated net income in 2004. Growth in net income con-

tributed by regional banking came primarily from operations in Texas

and  New  Mexico.  Net  income  for  2005  in  Texas  and  New  Mexico

increased $10.6 million and $6.0 million, respectively, from the previ-

ous year. Net income from our Colorado operations grew $2.5 million

or 152% over 2004.

ing deposits and $16 million of demand deposits. Over 15 thousand

new consumer checking accounts were opened during 2005. Funds

provided  by  the  growth  in  deposits  reduced  average  external  bor-

rowings.  The  increase  in  operating  revenue  was  due  primarily  to

growth in deposit fees and check card revenue.

Expansion  efforts  in  the  Colorado  region  continued  during  2005.

Commercial lending staff was added throughout the year. Addition-

ally, a new office which offers trust products in Salt Lake City, Utah,

was opened during the second quarter. The result of these efforts was

net  income  from  our  Colorado  operations  of  $4.1  million,  a  152%

increase in its second full year of operations as a BOK Financial unit.

Average  earning  assets  attributed  to  our  Colorado  operations

increased  36%  due  primarily  to  loan  growth.  Average  deposits

increased $128 million or 40%. These factors combined to increase

net  interest  revenue  $6.5  million  or  39%.  Other  operating  revenue

increased $1.6 million or 19% due primarily to growth in trust fees. The

fair value of trust assets managed by Colorado State Bank and Trust

was $2.4 billion at December 31, 2005, a 20% increase from Decem-

ber  31,  2004.    Net  loans  charged-off  increased  to  $2.5  million  in

2005 from the resolution of several commercial lending relationships

that pre-dated our acquisition of Colorado State Bank and Trust.

Bank of Arizona incurred a net loss of $524 thousand since its acqui-

sition in April, 2005. Operating expense included $778 thousand of

core deposit premium amortization expense. Our policy is to amortize

core  deposit  premiums  over  the  expected  lives  of  the  acquired

18

 Financials_v5.qxd  2/24/06  3:46 PM  Page 19

Management’s Discussion and Analysis

deposits  using  an  accelerated  amortization  method.  The  weighted

systems which increased the scope of products and services offered

average  life  of  the  acquired  deposits  is  approximately  five  years.

in  the  Phoenix  market.  Outstanding  loans  increased  $70  million  or

Operating  expense  also  included  $380  thousand  of  recruiting

55%. We recently opened a loan production office in Tucson to further

expenses as we add professional staff. In the nine months since acqui-

expand our Arizona operations.

sition, Bank of Arizona has been converted to our data processing

Table 12 Bank of Texas
(Dollars in Thousands)

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

Total net interest 

revenue

Years ended December 31,
2004

2003

2005

$ 148,021

$ 120,813 $ 106,617

(10,809)

(5,206)

(5,068)

137,212

115,607

101,549

Other operating revenue
Operating expense
Net loans charged off
Net income

24,053
82,189
2,727
49,946

$

22,406
73,548
3,928
39,388 $

21,951
78,152
4,301
26,601

$

Average assets
Average economic capital
Average invested capital

$3,417,995
182,640
349,720

$3,143,625 $2,859,069
166,870
333,960

168,430
335,520

Return on assets
Return on economic capital
Return on average 
invested capital

Efficiency ratio

1.46%

27.35

14.28
50.97

1.25%

23.39

11.74
53.29

0.93%

15.94

7.97
63.28

Table 13 Bank of Albuquerque
(Dollars in Thousands)

Table 14 Bank of Arkansas

(Dollars in Thousands)

Years ended December 31,
2004

2003

2005

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

Total net interest revenue

$ 12,055

$ 9,046

$ 8,700

(3,918)
8,137

(2,170)
6,876

(2,148)
6,552

Other operating revenue
Operating expense
Net loans charged off
Net income

2,063
4,018
52
$ 3,745

Average assets
Average economic capital
Average invested capital

$268,307
11,900
11,900

1,394
4,115
(26)
$ 2,555

$273,700
11,450
11,450

1,205
3,894
661
$ 1,957

$288,030
10,720
10,720

Return on assets
Return on economic capital
Return on average 
invested capital

Efficiency ratio

1.40%

31.47

31.47
39.39

0.93%

22.31

22.31
49.76

0.68%

18.26

18.26
50.20

Table 15 Colorado State Bank and Trust

(Dollars in Thousands)

Years ended December 31,
2004

2003

2005

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

Total net interest revenue

Other operating revenue
Operating expense
Net loans charged off
Net income

$

Years ended December 31,
2004

2003

2005

$

58,208

$

46,888 $

42,128

(10,560)
47,648

17,367
31,195
930
20,096

(5,065)
41,823

14,701
31,904
1,471
14,144 $

$

(4,362)
37,766

11,533
30,385
1,326
10,919

Average assets
Average economic capital
Average invested capital

$1,633,310
76,560
95,650

$1,652,557 $1,551,192
66,070
85,160

73,270
92,360

Return on assets
Return on economic capital
Return on average 
invested capital

Efficiency ratio

1.23%

26.25

21.01
47.98

0.86%

19.30

15.31
56.44

0.70%

16.53

12.82
61.63

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

Total net interest revenue

$ 35,299

$ 24,034

(12,059)
23,240

(7,312)
16,722

Other operating revenue
Operating expense
Net loans charged off
Net income

10,136
24,179
2,517
$ 4,081

Average assets
Average economic capital
Average invested capital

$873,805
47,070
89,050

8,516
22,455
134
$ 1,619

$684,329
27,560
69,550

***

***
***

***
***
***
***

***
***
***

***
***

Return on assets
Return on economic capital
Return on average 
invested capital

0.47%
8.67

0.24%
5.87

4.58
72.44
Efficiency ratio
*** Data not meaningful due to acquisition of Colorado State Bank and

2.33
88.97

***
***

Trust in September 2003.

19

 Financials_v5.qxd  2/24/06  3:46 PM  Page 20

Management’s Discussion and Analysis

Table 16 Bank of Arizona

(Dollars in Thousands)

Years ended December 31,
2004

2003

2005

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

Total net interest revenue

Other operating revenue
Operating expense
Net loans charged off
Net loss

$

$ 10,690

(3,992)
6,698

1,100
8,828
(31)
(524)

Average assets
Average economic capital
Average invested capital

$227,081
6,830
23,480

Return on assets
Return on economic capital
Return on average 
invested capital

(0.23)%
(7.67)

***

***
***

***
***
***
***

***
***
***

***
***

***

***
***

***
***
***
***

***
***
***

***
***

(2.23)
113.21
Efficiency ratio
*** Data not applicable due to acquisition of Bank of Arizona in April

***
***

***
***

2005.

Assessment of Financial Condition

Securities

BOK Financial maintains a securities portfolio to support its interest

rate  risk  management  strategies,  provide  liquidity  and  profitability

and comply with regulatory requirements. Securities are classified as

either held for investment or available for sale. Investment securities,

which consist primarily of Oklahoma municipal bonds, are carried at

cost and adjusted for amortization of premiums or accretion of dis-

counts. Management has the ability and intent to hold these securi-

ties 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 comprehen-

sive income in shareholders’ equity. 

The  amortized  cost  of  available  for  sale  securities  at  December  31,

2005  increased  $317  million  compared  with  the  previous  year-end.

Mortgage-backed securities increased $293 million and represented

97%  of  total  available  for  sale  securities.  The  increase  in  securities

reflected an increase in available funds due to strong deposit growth

during 2005. As previously discussed in the Net Interest Revenue sec-

tion of this report, we hold mortgage-backed securities as part of our

overall interest rate risk management strategy. 

The 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 exten-

sive modeling of risk both before making an investment and through-

out the life of the security. The expected duration of the mortgage-

backed  securities  portfolio  was  2.8  years  at  December  31,  2005.

Management estimates that the expected duration would extend to

3.3 years assuming a 300 basis point immediate rate shock.

Table 17 Securities

(Dollars in Thousands)

Investment:

U.S. Treasury
Municipal and other tax-exempt
Mortgage-backed U.S. agency securities
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
Equity securities and mutual funds

Total

2005

Amortized
Cost

Fair
Value

$

1,994
240,359
—
2,772
$ 245,125

$

1,976
238,649
—
2,781
$ 243,406

December 31,
2004

2003

Amortized
Cost

Fair
Value

Amortized
Cost

Fair
Value

$

— $

— $

— $

216,986
1,287
2,821
$ 221,094

218,465
1,336
2,835
$ 222,636

184,192
2,296
1,463
$ 187,951

—
187,354
2,418
1,484
$ 191,256

$

16,037
17,153

$

15,827
17,078

$

27,119
414

$

27,062
404

$

44,679
3,271

$

45,424
3,257

3,507,047
1,277,161
4,784,208
124
108,914
$4,926,436

3,424,356
1,250,701
4,675,057
124
113,489
$4,821,575

3,067,611
1,423,613
4,491,224
515
90,343
$4,609,615

3,052,375
1,418,770
4,471,145
528
94,051
$4,593,190

3,514,158
845,430
4,359,588
1,140
96,460
$4,505,138

3,518,926
848,911
4,367,837
1,177
101,173
$4,518,868

20

 Financials_v5.qxd  2/24/06  3:46 PM  Page 21

Management’s Discussion and Analysis

Net unrealized losses on available for sale securities totaled $105 mil-

The commercial loan portfolio increased $724 million during 2005.

lion at December 31, 2005 compared with net unrealized losses of

Much of this increase was focused in the services portion of the port-

$16 million at December 31, 2004 due primarily to rising interest rates.

folio, which increased $235 million or 20%. Services, which consist of

None  of  the  unrealized  losses  resulted  from  credit  quality  concerns.

loans to a variety of businesses, comprised 16% of the total loan port-

The  aggregate  gross  amount  of  unrealized  losses  at  December  31,

folio. Approximately $1.1 billion of the services category is made up of

2005 totaled $114 million. Management evaluated the securities with

loans with outstanding balances of less than $10 million. Energy loans

unrealized losses to determine if we believe that the losses were tem-

totaled  $1.4  billion  or  15%  of  total  loans.  Outstanding  energy  loans

porary.  This  evaluation  considered  factors  such  as  causes  of  the

increased $176 million or 14% during 2005. Approximately $1.1 billion

unrealized  losses  and  prospects  for  recovery  over  various  interest

of the outstanding balance of energy loans was to oil and gas pro-

rate scenarios and time periods. We also considered our intent and

ducers. The amount of credit available to these customers generally

ability to either hold or sell the securities. It is our belief, based on cur-

depends  on  a  percentage  of  the  value  of  their  proven  energy

rently available information and our evaluation, that the unrealized

reserves  based  on  anticipated  prices.  The  energy  category  also

losses in these securities were temporary. 

included loans to borrowers involved in the transportation and sale of

Loans

The aggregate loan portfolio before allowance for loan losses totaled

$9.1 billion at December 31, 2005, a $1.2 billion or 15% increase since

last year. Loan growth was broadly distributed among the various seg-

ments of the portfolio and across all geographic markets.

oil and gas and to borrowers that manufacture equipment or provide

other services to the energy industry. 

Notable loan concentrations by primary industry of the borrowers are

presented in Table 18.

Table 18 Loans

(In Thousands)

Commercial:
Energy
Services
Wholesale/retail
Manufacturing
Healthcare
Agriculture
Other commercial and industrial

Total commercial

Commercial real estate:

Construction and land development
Multifamily
Other real estate loans

Total commercial real estate

Residential mortgage:

Secured by 1-4 family residential properties
Residential mortgages held for sale

Total residential mortgage

Consumer
Total

2005

2004

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

638,366
204,620
1,146,916
1,989,902

1,169,331
51,666
1,220,997

629,144
$9,139,978

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

457,399
231,985
931,726
1,621,110

1,198,918
40,262
1,239,180

492,841
$7,928,967

21

December 31,
2003

$1,231,599
989,906
668,202
482,657
393,929
228,222
342,187
4,336,702

436,087
271,119
922,886
1,630,092

1,015,643
56,543
1,072,186

444,909
$7,483,889

2002

2001

$1,132,178
917,263
627,422
501,506
332,359
186,976
292,094
3,989,798

356,227
307,119
772,492
1,435,838

929,759
133,421
1,063,180

412,167
$6,900,983

$ 987,556
807,691
600,470
467,260
276,789
170,861
364,123
3,674,750

327,455
291,687
722,633
1,341,775

703,080
166,093
869,173

409,680
$6,295,378

 Financials_v5.qxd  2/24/06  3:46 PM  Page 22

Management’s Discussion and Analysis

BOK  Financial  participates  in  shared  national  credits  when  appro-

estate loans were retail facilities — $305 million and office buildings

priate  to  obtain  or  maintain  business  relationships  with  local  cus-

— $499 million. Commercial real estate loans secured by office build-

tomers. Shared national credits are defined by banking regulators as

ings increased $156 million or 46% during the past year. 

credits of more than $20 million and with three or more non-affiliated

banks as participants. At December 31, 2005, the outstanding prin-

cipal  balance  of  these  loans  totaled  $1.1  billion.  Substantially  all  of

these  loans  are  to  borrowers  with  local  market  relationships.  BOK

Financial  serves  as  the  agent  lender  in  approximately  30%  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 $2.0 billion or 22% of the loan

portfolio at December 31, 2005. Commercial real estate loans grew

$369 million or 23% from the previous year end. Growth in commer-

cial real estate loans was distributed across all of our markets. Con-

struction  and  land  development  included  $494  million  for  single

family residential lots and premises, up $144 million or 41% since De-

cember 31, 2004. The major components of other commercial real

Residential  mortgage  loans,  excluding  loans  held  for  sale,  included

$350 million of home equity loans, $346 million of loans held for busi-

ness relationship purposes, $232 million of adjustable rate mortgages

and $182 million of loans held for community development. Consumer

loans  included  $357  million  of  indirect  automobile  loans.  Indirect

automobile  loans  grew  $123  million  during  2005  due  to  increased

demand. Substantially all of these loans were purchased from deal-

ers in Oklahoma, although the Company began indirect automobile

lending in Arkansas during 2005. 

The  Company  continued  to  increase  geographic  diversification

through  expansion  into  Texas,  New  Mexico,  Colorado  and  Arizona.

The percent of the loan portfolio attributed to Oklahoma was 59% at

December 31, 2005 and 62% at December 31, 2004. Table 20 pres-

ents the distribution of the major loan categories among our primary

market areas.

Table 19 Loan Maturity and Interest Rate Sensitivity at December 31, 2005

(In Thousands)

Loan maturity:
Commercial
Commercial real estate

Total

Interest rate sensitivity for selected loans with:

Predetermined interest rates
Floating or adjustable interest rates

Total

Total

$5,299,935
1,989,902
$7,289,837

$2,630,474
4,659,363
$7,289,837

Remaining Maturities of Selected Loans
Within 1 Year

1-5 Years

After 5 Years

$1,915,030
827,606
$2,742,636

$ 487,157
2,255,479
$2,742,636

$2,683,475
920,674
$3,604,149

$1,684,373
1,919,776
$3,604,149

$701,430
241,622
$943,052

$458,944
484,108
$943,052

22

 Financials_v5.qxd  2/24/06  3:46 PM  Page 23

Management’s Discussion and Analysis

Table 20 Loans by Principal Market Area

(In Thousands)

2005

2004

December 31,
2003

2002

2001

Oklahoma:

Commercial
Commercial real estate
Residential mortgage
Residential mortgage held for sale
Consumer

Total Oklahoma

Texas:

Commercial
Commercial real estate
Residential mortgage
Consumer

Total Texas

Albuquerque:

Commercial
Commercial real estate
Residential mortgage
Consumer

Total Albuquerque

Northwest Arkansas:

Commercial
Commercial real estate
Residential mortgage
Consumer

Total Northwest Arkansas

Colorado1:

Commercial
Commercial real estate
Residential mortgage
Consumer

Total Colorado

Arizona:

Commercial
Commercial real estate
Residential mortgage
Consumer

Total Arizona
Total BOK Financial loans

1Includes Denver loan production office

$3,159,683
862,700
842,757
51,666
466,180
$5,382,986

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

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

$

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

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

$

50,489
115,697
26,102
5,280
$ 197,568
$9,139,978

$2,802,852
789,868
699,274
56,543
324,305
$4,672,842

$ 963,340
477,561
204,481
101,269
$1,746,651

$ 297,896
175,745
66,179
11,070
$ 550,890

$

63,480
75,452
6,245
2,671
$ 147,848

$ 209,134
111,466
39,464
5,594
$ 365,658

$

—
—
—
—
$
—
$7,483,889

$2,677,616
763,469
656,391
133,421
294,404
$4,525,301

$ 866,905
455,364
192,575
104,353
$1,619,197

$ 286,622
150,293
76,020
11,399
$ 524,334

$

63,113
66,712
4,773
2,011
$ 136,609

$

$

95,542
—
—
—
95,542

$

—
—
—
—
$
—
$6,900,983

$2,576,808
739,419
476,023
166,093
314,060
$4,272,403

$ 775,788
380,602
136,181
85,347
$1,377,918

$ 219,257
136,425
85,309
8,200
$ 449,191

$

72,728
85,329
5,567
2,073
$ 165,697

$

$

30,169
—
—
—
30,169

$

—
—
—
—
$
—
$6,295,378

$2,847,470
744,724
901,648
40,262
367,947
$4,902,051

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

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

$

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

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

$

—
27,875
—
—
$
27,875
$7,928,967

23

 Financials_v5.qxd  2/24/06  3:46 PM  Page 24

Management’s Discussion and Analysis

Loan Commitments

BOK Financial enters into off-balance sheet arrangements in the nor-

mal course of business. These arrangements included loan commit-

ments which totaled $4.3 billion and standby letters of credit which

totaled $559 million at December 31, 2005. Loan commitments may

be unconditional obligations to provide financing or conditional obli-

gations 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 nec-

essarily represent future cash requirements.

Table 21 Off-Balance Sheet Credit Commitments as of December 31, 2005

(In Thousands)

Loan commitments
Standby letters of credit
Total

2005
$4,349,114
558,907
$4,908,021

2004

$3,459,425
414,228
$3,873,653

2003
$2,964,694
374,550
$3,339,244

2002
$2,884,011
290,069
$3,174,080

2001
$2,461,141
248,960
$2,710,101

Derivatives with Credit Risk

BOK  Financial  offers  programs  that  permit  its  customers  to  hedge

various risks, including fluctuations in energy and cattle prices, inter-

est 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

A deterioration of the credit standing of one or more of the customers

or  counterparties  to  these  contracts  may  result  in  BOK  Financial’s

recognizing a loss as the fair value of the affected contracts may no

longer move in tandem with the offsetting contracts. This could occur

if the credit standing of the customer or counterparty deteriorated

such that either the fair value of underlying collateral no longer sup-

ported the contract or the customer or counterparty’s ability to pro-

vide margin collateral was impaired. 

commodity prices, interest rates or foreign exchange rates. The coun-

Derivative contracts are carried at fair value. At December 31, 2005,

terparty contracts are identical to the customer contracts, except for

the fair values of derivative contracts reported as assets under these

a fixed pricing spread or a fee paid to us as compensation for admin-

programs totaled $453 million. This included energy contracts with

istrative costs, credit risk and profit.

These 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  proce-

dures. 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 pro-

vide 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  counter-

party  exceeds  established  limits.  Based  on  declines  in  the  counter-

parties’ credit ratings, these limits are reduced and additional margin

collateral is required. 

fair values of $418 million, interest rate contracts with fair values of

$19 million and foreign exchange contracts with fair values of $15 mil-

lion. The aggregate fair values of derivative contracts reported as lia-

bilities totaled $452 million. Approximately 94% of the fair value of

asset contracts was with customers. The credit risk of these contracts

is generally backed by energy production. The remaining 6% was with

counterparties,  consisting  primarily  of  highly-rated  financial  institu-

tions and energy companies. The maximum net exposure to any sin-

gle customer or counterparty totaled $85 million.

The Company’s policy had been to carry all derivative contracts at

fair value on a gross asset / gross liability basis. Changes in energy

prices during the third quarter of 2005 caused significant increases

in the fair values of both derivative assets and liabilities. The potential

impact  of  these  increases  on  regulatory  capital  ratios  caused  the

Company to adopt FASB Interpretation No. 39, “Offsetting Amounts

Related to Certain Contracts” (“FIN 39”). FIN 39 permits, but does not

require, reporting derivative assets and liabilities on a net by coun-

terparty basis provided certain specified criteria are met. These cri-

teria require written bilateral netting agreements between the Com-

24

 Financials_v5.qxd  2/24/06  3:46 PM  Page 25

Management’s Discussion and Analysis

pany and each of its counterparties that create a single legal claim

held for sale, principally mortgage loans accumulated for placement

or obligation to pay or receive the net amount in settlement of the

into security pools, are charged to earnings through adjustment in the

individual  derivative  contracts.  Amounts  reported  for  derivative

carrying value. The reserve for loan losses also represented 413% of

assets and liabilities in prior periods have been reclassified for con-

the  outstanding  balance  of  nonperforming  loans  at  year-end  2005

sistent presentation. 

Summary of Loan Loss Experience

The reserve for loan losses, which is available to absorb losses inher-

ent in the loan portfolio, totaled $104 million at December 31, 2005

compared to $109 million at December 31, 2004. These amounts rep-

resented 1.14% and 1.38% of outstanding loans, excluding loans held for

sale, at December 31, 2005 and 2004, respectively. Losses on loans

Table 22 Summary of Loan Loss Experience

(Dollars in Thousands)

compared  to  206%  at  year-end  2004.  Nonperforming  loans  at

December 31, 2005 decreased to $25 million compared with $53 mil-

lion  at  the  previous  year-end.  Net  loans  charged  off  during  2005

decreased to $16 million in 2005 compared to $22 million in the pre-

vious  year.  Net  commercial  loans  charged-off  during  2005  totaled

$5.6 million, a $6.0 million decrease from 2004. Net consumer loan

charge-offs, which include deposit account overdraft losses, were $7.1

million in 2005 and $8.2 million in 2004. Table 22 provides statistical

information regarding the reserve for loan losses for the past five years.

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-end1
Net charge-offs to average loans1
Total provision for credit losses to average loans1
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-end1
Problem Loans:

Loans past due (90 days)
Nonaccrual2
Renegotiated
Total

Foregone interest on nonaccrual loans2

2005
$108,618

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

$ 18,502
2,040
32
$ 20,574
$ 12,441

1.14%
0.19
0.15
37.05
6.41x

0.42%

1.37%

2004
$114,784

Years ended December 31,
2003
$103,851

2002
$ 89,188

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

1.38%
0.29
0.27
26.03
4.95x

0.48%

1.61%

16,331
88
1,721
13,335
31,475

887
53
83
5,102
6,125
25,350
34,000
2,283
$114,784

$ 12,219
1,636
—
$ 13,855
$ 35,636

1.55%
0.36
0.50
19.46
4.53x

0.41%

1.73%

13,326
286
412
11,881
25,905

1,276
118
146
3,436
4,976
20,929
34,228
1,364
$103,851

$ 12,717
(498)
—
$ 12,219
$ 33,730

1.53%
0.33
0.54
19.21
4.96x

0.38%

1.72%

2001
$ 72,183

18,042
71
308
6,827
25,248

1,151
653
57
2,727
4,588
20,660
35,365
2,300
$ 89,188

$ 10,472
2,245
—
$ 12,717
$ 37,610

1.46%
0.35
0.63
18.17
4.32x

0.47%

1.66%

$ 8,708
25,162
—
$ 33,870
$ 2,515

$ 7,649
52,660
—
$ 60,309
$ 4,617

$ 14,944
52,681
—
$ 67,625
$ 4,821

$ 8,117
49,855
—
$ 57,972
$ 4,770

$ 8,108
43,540
27
$ 51,675
$ 5,163

1 Excludes residential mortgage loans held for sale.
2 Interest collected and recognized on nonaccrual loans was not significant in 2005 and previous years disclosed.

25

 Financials_v5.qxd  2/24/06  3:46 PM  Page 26

Management’s Discussion and Analysis

The Company considers the credit risk from loan commitments and

Nonspecific reserves are maintained for risks beyond factors specific

letters of credit in its evaluation of the adequacy of the reserve for

to an individual loan or those identified through migration analysis. A

loan  losses.  During  2004,  we  adopted  the  preferred  presentation

range of potential losses is determined for each risk factor identified.

method and separated the reserve for off-balance sheet credit risk

At December 31, 2005, the ranges of potential losses for the more

from the reserve for loan losses. Table 22 presents the trend of re-

significant factors were:

serves  for  off-balance  sheet  credit  losses  and  the  relationship

between the reserve and loan commitments. It also presents the rela-

tionship  between  the  combined  reserve  for  credit  losses  and  out-

standing loans 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

General economic conditions — $6 million to $11 million

Concentration in large loans — $2 million to $3 million 

Allocation of the loan loss reserve to the major loan categories is pre-

sented in Table 23. 

for loan losses and the reserve for off-balance sheet credit losses. All

The  provision  for  credit  losses  totaled  $12.4  million,  an  $8.0  million

losses incurred from lending activities will ultimately be reflected in

decrease  from  2004.  Factors  considered  in  determining  the  provi-

charge-offs  against  the  reserve  for  loan  losses  following  funds

sion for credit losses included reductions in the outstanding balances

advanced  against  outstanding  commitments  and  after  the  exhaus-

of criticized and classified loans, nonperforming loans and potential

tion  of  collection  efforts.  The  reserve  for  off-balance  sheet  credit

problem loans. Factors that reduce the required provision were par-

losses would decrease and the reserve for loan losses would increase

tially offset by concerns about the effect of changes in interest rates

as outstanding commitments are funded.

and  energy  prices  on  the  commercial  real  estate  and  commercial

loan portfolios. 

Specific  impairment  reserves  are  determined  through  evaluation  of

estimated  future  cash  flows  and  collateral  value.  At  December  31,

2005,  specific  impairment  reserves  totaled  $2.6  million  on  total

impaired loans of $20 million. 

Table 23 Loan Loss Reserve Allocation

(Dollars in Thousands)

2005

2004

Loan category:
Commercial
Commercial real estate
Residential mortgage
Consumer
Nonspecific allowance
Total

Reserve2

$ 43,915
25,529
5,302
10,929
18,201
$103,876

% of
Loans1

58.32%
21.89
12.87
6.92
—

Reserve2

$ 52,325
21,317
5,904
12,034
17,038

December 31,
2003

% of
Loans1

Reserve2

% of
Loans1

58.00% $ 58,993
16,395
20.55
6,797
15.20
16,132
6.25
16,467
—

58.39%
21.95
13.67
5.99
—

2002

2001

Reserve2

$ 56,474
16,037
3,956
13,922
13,462
$103,851

% of
Loans1

Reserve2

% of
Loans1

58.95% $ 51,803
14,000
21.22
3,612
13.74
6,318
6.09
13,455
—
100.00% $ 89,188

59.95%
21.89
11.47
6.69
—

100.00%

100.00%
1 Excludes residential mortgage loans held for sale.
2 Specific allocation for the loan concentration risks are included in the appropriate category.

$108,618 100.00% $114,784 100.00%

26

 Financials_v5.qxd  2/24/06  3:46 PM  Page 27

Management’s Discussion and Analysis

Nonperforming Assets

Information regarding nonperforming assets, which totaled $34 mil-

lion at December 31, 2005 and $56 million at December 31, 2004 is

presented  in  Table  24.  Nonperforming  assets  included  nonaccrual

and renegotiated loans and excluded loans 90 days or more past

due  but  still  accruing  interest.  Nonaccrual  loans  decreased  to  $25

million  at  December  31,  2005  from  $53  million  at  December  31,

2004. Newly identified nonaccruing loans totaled $17 million during

the year. Nonaccruing loans decreased $17 million for loans charged

off  and  foreclosed  and  $16  million  for  cash  payments  received.

Nonaccruing loans also decreased $10 million from loans returned to

accruing status after a period of satisfactory performance.

Table 24 Nonperforming Assets
(Dollars in Thousands)

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

Total nonaccrual loans

Renegotiated loans

Total nonperforming loans
Other nonperforming assets

Total nonperforming assets

Ratios:

Reserve for loan losses to nonperforming loans
Nonperforming loans to period-end loans2

Loans past due (90 days)1
1 Includes residential mortgages guaranteed 
by agencies of the U.S. Government.

2 Excludes residential mortgage loans held for sale.

2005

2004

December 31,

2003

2002

2001

$11,673
5,370
7,347
772
25,162
—
25,162
8,476
$33,638

412.83%
0.28
$ 8,708

$33,195
10,144
8,612
709
52,660
—
52,660
3,763
$56,423

206.26%
0.67
$ 7,649

$41,360
2,311
7,821
1,189
52,681
—
52,681
7,186
$59,867

217.89%
0.71
$14,944

$39,114
3,395
5,950
1,396
49,855
—
49,855
6,719
$56,574

$35,075
3,856
4,140
469
43,540
27
43,567
7,141
$50,708

208.31%
0.74
$ 8,117

204.71%
0.71
$ 8,108

$ 2,021

$ 2,308

$ 4,132

$ 4,956

$ 6,222

The loan review process also identified loans that possess more than

deposit growth is supported through our Perfect Banking program,

the normal amount of risk due to deterioration in the financial condi-

free  checking  and  on-line  billpay  services,  an  extensive  network  of

tion of the borrower or the value of the collateral. Because the bor-

branch locations and ATMs and a 24-hour ExpressBank call center.

rowers are still performing in accordance with the original terms of

Commercial deposit growth is supported by offering treasury man-

the  loan  agreements,  and  no  loss  of  principal  or  interest  is  antici-

agement and lockbox services. 

pated,  these  loans  were  not  included  in  Nonperforming  Assets.

Known information does, however, cause management concerns as

to  the  borrowers’  ability  to  comply  with  current  repayment  terms.

These potential problem loans totaled $28 million at December 31,

2005 and $49 million at December 31, 2004. The current composi-

tion of potential problem loans by primary industry included health-

care — $12 million, real estate — $6 million and services — $5 million.

Deposits

Deposit accounts represent our primary funding source. We compete

for retail and commercial deposits by offering a broad range of prod-

ucts  and  services  and  focusing  on  customer  convenience.  Retail

Total deposits averaged $10.1 billion for 2005, a $641 million or 7%

increase over 2004. Growth in average deposits came primarily in

the  Texas,  Oklahoma  and  Colorado  markets.  Average  deposits

increased $192 million or 8% in Texas, $179 million or 3% in Oklahoma

and $128 million or 40% in Colorado. Consumer banking and per-

sonal financial services provided much of the deposit growth in each

of these markets. Additionally, average deposits increased $90 mil-

lion from the Bank of Arizona acquisition.

Across  all  markets,  average  core  deposits,  which  we  define  as

deposits of less than $100,000, excluding public funds and brokered

deposits,  increased  4%  to  $5.2  billion.  Growth  in  average  core

27

 Financials_v5.qxd  2/24/06  3:46 PM  Page 28

Management’s Discussion and Analysis

deposits  resulted  from  initiatives  such  as  free  on-line  billpay,  free

At December 31, 2005, the Company had $442 million in fixed rate,

checking  and  Perfect  Banking.  The  remaining  average  deposits

brokered certificates of deposits. The weighted-average interest rate

included  accounts  with  balances  in  excess  of  $100,000,  which

paid  on  these  certificates  is  3.64%.  Interest  rate  swaps  have  been

totaled  $3.9  billion,  and  brokered  deposits  and  public  funds,  which

designated as hedges of each of these certificates. The purpose of

totaled $987 million.

Table 25 Maturity of Domestic CDs and

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

December 31,

these swaps is to hedge against changes in fair value due to changes

in interest rates by modifying the certificates from fixed rate to float-

ing rates based on changes in LIBOR. We receive a weighted aver-

age fixed rate of 3.81% on these swaps and currently pay a floating

rate of 4.39%. 

The distribution of deposit accounts among our principal markets is

2005

2004

shown in Table 26. 

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

$ 354,724
256,919
631,691
1,226,823
$2,470,157

$ 412,455
183,723
264,101
1,388,014
$2,248,293

28

 Financials_v5.qxd  2/24/06  3:46 PM  Page 29

Management’s Discussion and Analysis

Table 26 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
Albuquerque:
Demand
Interest-bearing:
Transaction
Savings
Time

Total interest-bearing

Total Albuquerque
Northwest Arkansas:

Demand
Interest-bearing:
Transaction
Savings
Time

Total interest-bearing
Total Northwest 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

2005

2004

December 31,
2003

2002

2001

$ 1,003,284

$ 1,095,228

$ 1,025,483

$ 1,044,628

$

992,663

3,002,609
85,837
2,564,338
5,652,784
$ 6,656,068

2,291,089
87,597
2,505,849
4,884,535
$ 5,979,763

2,246,675
98,611
2,403,293
4,748,579
$ 5,774,062

1,897,353
103,749
2,334,949
4,336,051
$ 5,380,679

1,650,269
101,433
2,041,025
3,792,727
$ 4,785,390

$

615,732

$

617,808

$

421,292

$

394,164

$

305,745

1,535,570
27,398
735,731
2,298,699
$ 2,914,431

1,119,893
30,331
571,993
1,722,217
$ 2,340,025

1,213,777
35,702
505,463
1,754,942
$ 2,176,234

953,550
33,071
510,512
1,497,133
$ 1,891,297

670,728
28,918
451,031
1,150,677
$ 1,456,422

$

129,289

$

136,599

$

106,050

$

79,953

$

57,648

381,099
17,839
453,314
852,252
981,541

10,429

22,354
1,058
75,034
98,446
108,875

61,647

258,668
17,772
264,020
540,460
602,107

45,567

56,994
4,111
5,624
66,729
112,296

$

$

$

$

$

$

$

320,118
17,885
411,939
749,942
886,541

14,489

26,882
1,434
99,677
127,993
142,482

62,995

189,106
19,092
54,394
262,592
325,587

—

—
—
—
—
—

$

$

$

$

$

$

$

370,294
20,728
317,924
708,946
814,996

16,351

28,411
1,341
105,598
135,350
151,701

79,424

162,651
18,347
42,448
223,446
302,870

—

—
—
—
—
—

$

$

$

$

$

$

$

295,174
26,704
287,607
609,485
689,438

12,949

18,025
1,214
134,923
154,162
167,111

—

—
—
—
—
—

—

—
—
—
—
—

$

$

$

$

$

$

$

224,265
26,848
241,549
492,662
550,310

10,634

14,452
1,035
87,501
102,988
113,622

—

—
—
—
—
—

—

—
—
—
—
—

$

$

$

$

$

$

$

Total BOK Financial deposits

$11,375,318

$ 9,674,398

$ 9,219,863

$ 8,128,525

$ 6,905,744

29

 Financials_v5.qxd  2/24/06  3:46 PM  Page 30

Management’s Discussion and Analysis

Borrowings and Capital

debt covenant requirements. Capital management may include sub-

ordinated debt issuance, share repurchase and stock and cash divi-

Parent Company

dends. 

BOK  Financial  (parent  company)  has  a  $100  million  unsecured

On April 26, 2005, the Board of Directors authorized a share repur-

revolving line of credit with certain commercial banks that expires in

chase program which replaced a previously authorized program. A

December 2010. There was no outstanding principal balance of this

maximum  of  two  million  common  shares  may  be  repurchased.  The

credit  agreement  at  December  31,  2005.  Interest  is  based  upon  a

specific timing and amount of shares repurchased will vary based on

base rate or LIBOR plus a defined margin that is determined by the

market conditions, securities law limitations and other factors. Repur-

Company’s credit rating. This margin ranges from 0.375% to 1.125%.

chases may be made over time in open market or privately negoti-

The  margin  currently  applicable  to  borrowings  against  this  line  is

ated  transactions.  The  repurchase  program  may  be  suspended  or

0.500%. The base rate is defined as the greater of the daily federal

discontinued  at  any  time  without  prior  notice.  Since  this  program

funds rate plus 0.500% or the SunTrust Bank prime rate. Interest is

began, 30,000 shares have been repurchased by the Company for

generally paid monthly. Facility fees are paid quarterly on the unused

$1.3 million.

portion  of  the  commitment  at  rates  that  range  from  0.100%  to

0.250% based on the Company’s credit rating.

During the second quarter of 2005, the Board of Directors approved

the  Company’s  first  quarterly  cash  dividend  of  $0.10  per  common

This credit agreement includes certain restrictive covenants that limit

share. The quarterly cash dividend replaced the annual dividend his-

the  Company’s  ability  to  borrow  additional  funds,  to  make  invest-

torically  paid  in  shares  of  common  stock.  Concurrent  with  the  first

ments and to pay cash dividends on common stock. These covenants

quarterly  cash  dividend,  holders  of  the  Company’s  convertible  pre-

also  require  BOK  Financial  and  subsidiary  banks  to  maintain  mini-

ferred stock exercised their conversion rights. All of the Series A Pre-

mum capital levels. BOK Financial met all of the restrictive covenants

ferred Stock was converted into 6,920,666 common shares.

at December 31, 2005.

BOK  Financial  and  subsidiary  banks  are  subject  to  various  capital

The primary source of liquidity for BOK Financial is dividends from

requirements administered by federal agencies. Failure to meet mini-

subsidiary banks, which are limited by various banking regulations to

mum capital requirements can result in certain mandatory and possi-

net profits, as defined, for the preceding two years. Dividends are fur-

bly additional discretionary actions by regulators that could have a

ther restricted by minimum capital requirements. Based on the most

material  impact  on  operations.  These  capital  requirements  include

restrictive limitations, the subsidiary banks could declare up to $158

quantitative  measures  of  assets,  liabilities  and  off-balance  sheet

million  of  dividends  without  regulatory  approval.  Management  has

items. The capital standards are also subject to qualitative judgments

developed and the Board of Directors has approved an internal cap-

by the regulators. The capital ratios for BOK Financial and each sub-

ital  policy  that  is  more  restrictive  than  the  regulatory  capital  stan-

sidiary bank are presented in Note 16 to the Consolidated Financial

dards. The subsidiary banks could declare dividends of up to $86 mil-

Statements. 

lion under this policy.

Equity capital for BOK Financial increased $141 million to $1.5 billion

during  2005.  Retained  earnings,  net  income  less  cash  dividends

paid, provided $181 million to this increase. Growth in retained earn-

ings  was  partially  offset  by  a  $56  million  increase  in  accumulated

other comprehensive losses due primarily to net unrealized losses on

available for sale securities. The remaining increase in capital during

2005 resulted primarily from employee stock option transactions. 

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

Subsidiary Banks

BOK  Financial’s  subsidiary  banks  use  borrowings  to  supplement

deposits as a source of funds for loans and securities growth. Sources

of  these  borrowings  included  federal  funds  purchased,  securities

repurchase agreements and advances from the Federal Home Loan

Banks. Interest rates and maturity dates for the various borrowings

are matched with specific asset types in the asset/liability manage-

ment process. Note 10 to the Consolidated Financial Statements pro-

vides additional information about the subsidiary banks’ borrowings,

including maturity and repricing periods and collateral requirements.

30

 Financials_v5.qxd  2/24/06  3:46 PM  Page 31

Management’s Discussion and Analysis

During 2005, Bank of Oklahoma issued $150 million of 10-year, fixed

ject to this guarantee is 210,069. The price guarantee is non-trans-

rate subordinated debt. The cost of this subordinated debt, including

ferable and non-cumulative. BOK Financial may elect, in its sole dis-

issuance discounts and hedge loss is 5.43%. The proceeds of this debt

cretion, to issue additional shares of common stock or to pay cash to

were used to repay $95 million of BOK Financial’s unsecured revolv-

satisfy  any  obligation  under  the  price  guarantee.  The  maximum

ing line of credit and to provide additional capital to support asset

remaining number of shares that may be issued to satisfy any price

growth.

In 1997, Bank of Oklahoma issued $150 million of 10-year, 7.125% fixed

rate  subordinated  debt.  During  2004,  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.

guarantee obligations is 10 million. If, as of any benchmark date, we

have already issued 10 million shares, we are not obligated to make

any further benchmark payments. Additionally, the Company’s ability

to pay cash to satisfy any price guarantee obligations is limited by

applicable banking capital and dividend regulations.

The  Company  receives  a  fixed  rate  of  3.165%  and  pays  a  variable

The  Company  will  have  no  obligation  to  issue  additional  common

rate  based  on  1-month  LIBOR.  Semi-annual  swap  settlements  coin-

shares or pay cash to satisfy any benchmark price protection obliga-

cide  with  interest  payments  on  the  subordinated  debenture.  The

tion if the market value per share of BOK Financial common stock

interest rate swap terminates on August 15, 2007, the maturity date

remains above the highest benchmark price of $42.53. The closing

of the subordinated debt. 

price of the Company’s common stock on December 31, 2005 was

$45.43.

Off-Balance Sheet Arrangements

During 2002, BOK Financial agreed to a limited price guarantee on

Aggregate Contractual Obligations

a portion of the common shares issued to purchase Bank of Tangle-

BOK Financial has numerous contractual obligations in the normal

wood.  The  fair  value  of  this  guarantee,  estimated  to  be  $3  million

course of business. These obligations include time deposits and other

based upon the Black-Scholes option pricing model, was included in

borrowed funds, premises used under various operating leases, com-

the  purchase  price.  Any  holder  of  BOK  Financial  common  shares

mitments  to  extend  credit  to  borrowers  and  to  purchase  securities,

issued in this acquisition may annually make a claim for the excess of

derivative contracts and contracts for services such as data process-

the guaranteed price and the actual sales price of any shares sold

ing that are integral to our operations. The following table summa-

during a 60-day period after each of the first five anniversary dates

rizes payments due per these contractual obligations at December

after October 25, 2002. The maximum annual number of shares sub-

31, 2005.

Table 27 Contractual Obligations as of December 31, 2005

(In Thousands)

4 to 5
Years
$ 690,977
14,526
15,000
22,090
13,975
13,868
$ 770,436

More Than
5 Years
$ 446,834
11,910
183,125
29,883
805
—
$ 672,557

Total
$3,477,149
1,078,606
398,680
93,264
452,014
51,379
$5,551,092

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

Less Than
1 Year
$1,010,487
1,046,357
18,188
14,963
308,823
13,967
$2,412,785

Loan commitments
Standby letters of credit
Unfunded third-party private equity investments
Deferred compensation and stock-based compensation obligations

1 to 3
Years

$1,328,851
5,813
182,367
26,328
128,411
23,544
$1,695,314

$4,349,114
558,907
16,438
18,278

31

 Financials_v5.qxd  2/24/06  3:46 PM  Page 32

Management’s Discussion and Analysis

Payments on time deposits and other borrowed funds include inter-

Market Risk

est,  which  has  been  calculated  from  rates  at  December  31,  2005.

Many  of  these  obligations  have  variable  interest  rates,  and  actual

payments will differ from the amounts shown on this table. Obliga-

tions under derivative contracts used for interest rate risk manage-

ment  purposes  are  included  with  projected  payments  from  time

deposits and other borrowed funds as appropriate. 

Only time deposits with original terms exceeding one year are pre-

sented in Table 27. Payments on time deposits are based on contrac-

tual maturity dates. These funds may be withdrawn prior to maturity.

We may charge the customer a penalty for early withdrawal. 

Operating lease commitments generally represent real property we

rent  for  branch  offices,  corporate  offices  and  operations  facilities.

Payments  presented  represent  the  minimum  lease  payments  and

exclude related costs such as utilities and property taxes.

Data processing 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.  Since  some  of  these  commitments  are

expected to expire before being drawn upon, the total commitment

amounts do not necessarily represent future cash requirements.

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.

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 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 / Liabil-

ity Committee that operates under policy guidelines established by

the Board of Directors. The acceptable negative variation in net inter-

est revenue, net income or economic value of equity due to a speci-

fied basis point increase or decrease in interest rates is generally lim-

ited  by  these  guidelines  to  +/–  10%.  These  guidelines  also  set

maximum levels for short-term borrowings, short-term assets, public

Obligations  under  derivative  contracts  relate  to  customer  hedging

funds  and  brokered  deposits,  and  establish  minimum  levels  for  un-

programs. As previously discussed, we have entered into derivative

pledged assets, among other things. Compliance with these guide-

contracts that are expected to substantially offset the cash payments

lines is reviewed monthly.

due on these obligations. 

The  Company  has  commitments  to  make  investments  through  its

Interest Rate Risk — Other than Trading

BOK  Financial  Private  Equity  Fund.  These  commitments  generally

reflect customer investment obligations.

BOK Financial has a large portion of its earning assets in variable

rate  loans  and  a  large  portion  of  its  liabilities  in  demand  deposit

The Company has compensation and employment agreements with

accounts  and  interest-bearing  transaction  accounts.  Changes  in

its  President  and  Chief  Executive  Officer.  Collectively,  these  agree-

interest rates affect earning assets more rapidly than interest-bearing

ments  provide,  among  other  things,  that  all  unvested  stock-based

liabilities in the short-term. Management has adopted several strate-

compensation shall fully vest upon his termination, subject to certain

gies to reduce this interest rate sensitivity. As previously noted in the

conditions. These agreements also provide for settlement in cash or

Net  Interest  Revenue  section  of  this  report,  management  acquires

other assets. We currently have recognized an $11.7 million liability for

securities that are funded by borrowings in the capital markets. These

these plans. This liability would increase to $13.0 million if all awards

securities have an expected average duration of 2.8 years while the

were fully vested. We also have obligations with respect to employee

related funds borrowed have an average duration of 90 days. 

and executive benefit plans. See Notes 12 and 13 to the Consolidated

Financial Statements.

32

 Financials_v5.qxd  2/24/06  3:46 PM  Page 33

Management’s Discussion and Analysis

BOK Financial also uses interest rate swaps to manage its interest rate

The  Company’s  primary  interest  rate  exposures  include  the  Federal

sensitivity. These products are generally used to more closely match

Funds rate, which affects short-term borrowings, and the prime lending

interest on certain fixed rate loans with funding sources and long-term

rate and LIBOR, which are the basis for much of the variable rate loan

certificates  of  deposit  with  earning  assets.  Net  interest  revenue

pricing.  Additionally,  mortgage  rates  directly  affect  the  prepayment

decreased  $1.4  million  in  2005  and  increased  $9.9  million  in  2004

speeds for mortgage-backed securities and mortgage servicing rights.

from periodic settlements of these contracts. These contracts are car-

Derivative financial instruments and other financial instruments used

ried on the balance sheet at fair value and changes in fair value are

for  purposes  other  than  trading  are  included  in  this  simulation.  The

reported in income as derivatives gains or losses. A net gain of $1.1 mil-

model incorporates assumptions regarding the effects of changes in

lion was recognized in 2005 compared with a net loss of $1.3 million

interest  rates  and  account  balances  on  indeterminable  maturity

in 2004 from adjustments of these swaps and hedged liabilities to fair

deposits based on a combination of historical analysis and expected

value. Credit risk from these swaps is closely monitored as part of our

behavior. The impact of planned growth and new business activities is

overall process of managing credit exposure to other financial institu-

factored into the simulation model. The effects of changes in interest

tions. Additional information regarding interest rate swap contracts is

rates  on  the  value  of  mortgage  servicing  rights  are  excluded  from

presented in Note 4 to the Consolidated Financial Statements. 

Table 28 due to the extreme volatility over such a large rate range. The

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

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 — Mortgage Banking section of this report.

interest rate risk exposures, including embedded option positions, on

The simulations used to manage market risk are based on numerous

net interest revenue, net income and economic value of equity. A sim-

assumptions regarding the effects of changes in interest rates on the

ulation  model  is  used  to  estimate  the  effect  of  changes  in  interest

timing and extent of repricing characteristics, future cash flows and

rates over the next 12 and 24 months based on eight interest rate sce-

customer behavior. These assumptions are inherently uncertain, and,

narios.  Two  specified  interest  rate  scenarios  are  used  to  evaluate

as a result, the model cannot precisely estimate net interest revenue,

interest  rate  risk  against  policy  guidelines.  The  first  assumes  a  sus-

net  income  or  economic  value  of  equity  or  precisely  predict  the

tained parallel 200 basis point increase and the second assumes a

impact of higher or lower interest rates on net interest revenue, net

sustained  parallel  200  basis  point  decrease  in  interest  rates.  The

income or economic value of equity. Actual results will differ from sim-

Company also performs a sensitivity analysis based on a “most likely”

ulated results due to timing, magnitude and frequency of interest rate

interest  rate  scenario,  which  includes  non-parallel  shifts  in  interest

changes,  market  conditions  and  management  strategies,  among

rates.  An  independent  source  is  used  to  determine  the  most  likely

other factors.

interest rate scenario.

Table 28 Interest Rate Sensitivity
(Dollars in Thousands)

Anticipated impact over the next twelve months
on net interest revenue

200 bp Increase
2004

2005

200 bp Decrease
2005
2004

Most Likely

2005

2004

$ 7,334

$ 7,969

1.5%

1.8%

$ (7,295)

(1.5)%

***
***

$ 5,675

$ 5,893

1.2%

1.3%

*** A 200 basis point decrease was not computed in 2004 due to low market interest rates.

33

 Financials_v5.qxd  2/24/06  3:46 PM  Page 34

Management’s Discussion and Analysis

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

pensation  issued  to  employees.  Previously,  FAS  123  recommended,

but did not require income statement recognition of the fair value of

equity-based compensation. FAS 123R also requires that share-based

payments that meet specified criteria be classified as liability awards

and carried at current fair value. Fair value is determined at each bal-

ance sheet date until the award is settled. Share-payments that will

be settled in equity instruments are measured at grant-date fair value

and not re-measured for subsequent changes in fair value. FAS 123R

was effective for annual periods beginning on or after June 15, 2005.

and financial futures for its own account. These positions are taken

We previously adopted the preferred income statement recognition

with the objective of generating trading profits. Both of these activ-

methods of the original FAS 123. Management does not expect FAS

ities involve interest rate risk.

123R to have a significant effect on its financial statements. 

A  variety  of  methods  are  used  to  manage  the  interest  rate  risk  of

FSP  115-1  and  FAS  124-1  The  Meaning  of  Other-Than-Temporary

trading activities. These methods include daily marking of all positions

Impairment and its Application to Certain Investments (“FSP 115-1”) 

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. 

FSP 115-1 addressed the determination as to when an investment is

considered impaired, whether that impairment is other-than-tempo-

rary and the measurement of an impairment loss. It also addressed

accounting considerations subsequent to the recognition of an other-

Management uses a Value at Risk (“VAR”) methodology to measure

than-temporary impairment and disclosures about unrealized losses

the  market  risk  inherent  in  its  trading  activities.  VAR  is  calculated

that have not been recognized.

based upon historical simulations over the past five years using a vari-

ance / 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  $1.8  million.  At  December  31,  2005,  the  VAR  was  $241

thousand. The greatest value at risk during 2005 was $1.8 million. 

Recently Issued Accounting Standards

Financial Accounting Standards Board

Statement of Financial Accounting Standards 123R, 

“Share-Based Payments” (“FAS 123R”)

FAS 123R requires companies to recognize in income statements the

grant-date fair value of stock options and other equity-based com-

An investment is considered impaired when its fair value is less than

cost. Determination of when an unrealized loss must be recognized as

an other-than-temporary impairment is based on an assessment of

factors, including the nature of the asset, the financial condition and

near-term prospects of the issuer, whether the asset can be prepaid

by the issuer in a manner that the investor will not recover its invest-

ment, the severity and duration of the impairment and the investor’s

ability and intent to hold the asset until the fair value recovers.

FSP 115-1 was effective for reporting periods beginning after Decem-

ber 15, 2005. Guidance provided by FSP 115-1 had previously been

issued in other authoritative literature, including SEC Staff Account-

ing  Bulletin  No.  59,  and  we  do  not  expect  a  significant  impact  on

future financial statements.

34

 Financials_v5.qxd  2/24/06  3:46 PM  Page 35

Management’s Discussion and Analysis

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 discus-

sion of the provision and reserve for loan losses 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

ference  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 technolog-

ical  advances  and  (8)  trends  in  customer  behavior  as  well  as  their

ability to repay loans. BOK Financial and its affiliates undertake no

obligation  to  update,  amend  or  clarify  forward-looking  statements,

whether as a result of new information, future events or otherwise.

Legal Notice

statements  are  not  guarantees  of  future  performance  and  involve

As used in this report, the term “BOK Financial” and such terms as

certain risks, uncertainties and assumptions that are difficult to pre-

“the  Company,”  “the  Corporation,”  “our,”  “we”  and  “us”  may  refer  to

dict  with  regard  to  timing,  extent,  likelihood  and  degree  of  occur-

one or more of the consolidated subsidiaries or all of them taken as

rence. Therefore, actual results and outcomes may materially differ

a whole. All these terms are used for convenience only and are not

from what is expressed, implied or forecasted in such forward-looking

intended as a precise description of any of the separate companies,

statements. Internal and external factors that might cause such a dif-

each of which manages its own affairs. 

35

 Financials_v5.qxd  2/24/06  3:46 PM  Page 36

Report of Management on Financial Statements

Management  of  BOK  Financial  is  responsible  for  the  preparation,

Management’s Report on Internal Control
over Financial Reporting 

integrity  and  fair  presentation  of  the  consolidated  financial  state-

Management  is  responsible  for  establishing  and  maintaining  ade-

ments  included  in  this  annual  report.  The  consolidated  financial

quate internal control over financial reporting and for assessing the

statements have been prepared in accordance with accounting prin-

effectiveness of internal control over financial reporting, as such term

ciples  generally  accepted  in  the  United  States  and  necessarily

is defined in Exchange Act Rules 13a-15(f) and 15d-15(f). Management

include  some  amounts  that  are  based  on  our  best  estimates  and

has assessed the effectiveness of the Company’s internal control over

judgments.

Management, under the supervision of the Chief Executive Officer

and the Chief Financial Officer, conducted an assessment of inter-

nal control over financial reporting as of December 31, 2005. Inter-

nal control over financial reporting is a process designed to provide

reasonable assurance regarding the reliability of financial reporting

financial reporting based on the criteria established in “Internal Con-

trol — Integrated Framework,” issued by the Committee of Sponsor-

ing Organizations (“COSO”) of the Treadway Commission. Based on

that assessment and criteria, management has determined that the

Company maintained effective internal control over financial report-

ing as of December 31, 2005.

and the preparation of the Company’s consolidated financial state-

Ernst & Young LLP, the independent registered public accounting firm

ments for external purposes in accordance with accounting princi-

that audited the consolidated financial statements of the Company

ples generally accepted in the United States. In establishing internal

included  in  this  annual  report,  has  issued  an  audit  report  on  man-

control  over  financial  reporting,  management  assesses  risk  and

agement’s assessment of the effectiveness of the Company’s internal

designs  controls  to  prevent  or  detect  financial  reporting  misstate-

control  over  financial  reporting  as  of  December  31,  2005.  Their

ments  that  may  be  consequential  to  a  reader.  Management  also

report,  which  expresses  unqualified  opinions  on  management’s

assesses  the  impact  of  any  internal  control  deficiencies  and  over-

assessment and on the effectiveness of the Company’s internal con-

sees  efforts  to  continuously  improve  internal  control  over  financial

trol over financial reporting as of December 31, 2005, is included in

reporting. Because of inherent limitations, it is possible that internal

this annual report. 

controls may not prevent or detect misstatements, and it is possible

that internal controls may vary over time based on changing condi-

tions. There have been no material changes in internal controls sub-

sequent to December 31, 2005.

The Risk Oversight and Audit Committee, consisting entirely of inde-

pendent directors, meets regularly with management, internal audi-

tors and the independent registered public accounting firm, Ernst &

Young LLP, regarding management’s assessment of internal control

over financial reporting. 

36

 Financials_v5.qxd  2/24/06  3:46 PM  Page 37

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

Report on Consolidated Financial Statements

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, 2005 and 2004, and

the consolidated results of its operations and its cash flows for each

of the three years in the period ended December 31, 2005, in con-

The Board of Directors and Shareholders of BOK Financial 

formity with U.S. generally accepted accounting principles.

Corporation

We also have audited, in accordance with the standards of the Pub-

We have audited the accompanying consolidated balance sheets of

lic Company Accounting Oversight Board (United States), the effec-

BOK  Financial  Corporation  as  of  December 31,  2005  and  2004,

tiveness of BOK Financial Corporation’s internal control over finan-

and  the  related  consolidated  statements  of  earnings,  shareholders’

cial reporting as of December 31, 2005, based on criteria established

equity, and cash flows for each of the three years in the period ended

in Internal Control — Integrated Framework issued by the Committee

December 31, 2005. These financial statements are the responsibil-

ity of the Company’s management. Our responsibility is to express an

opinion on these financial statements based on our audits. 

of Sponsoring Organizations of the Treadway Commission and our
report  dated  March  10,  2006  expressed  an  unqualified  opinion
thereon.

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 rea-

sonable 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 princi-

ples 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.

Ernst & Young LLP

Tulsa, Oklahoma

March 10, 2006

37

 Financials_v5.qxd  2/24/06  3:46 PM  Page 38

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

Report on Effectiveness of Internal Control over Financial
Reporting

principles.  A  company’s  internal  control  over  financial  reporting

includes those policies and procedures that (1) pertain to the mainte-

nance  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  accor-

The Board of Directors and Shareholders of BOK Financial 

dance  with  generally  accepted  accounting  principles,  and  that

Corporation

We have audited management’s assessment, included in the accom-

panying  Management’s  Report  on  Internal  Control  over  Financial

Reporting,  that  BOK  Financial  Corporation  maintained  effective

internal  control  over  financial  reporting  as  of  December  31,  2005,

based on criteria established in Internal Control—Integrated Frame-

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 preven-

tion or timely detection of unauthorized acquisition, use, or disposition

of  the  company’s  assets  that  could  have  a  material  effect  on  the

financial statements.

work  issued  by  the  Committee  of  Sponsoring  Organizations  of  the

Because  of  its  inherent  limitations,  internal  control  over  financial

Treadway Commission (the COSO criteria). BOK Financial Corpora-

reporting may not prevent or detect misstatements. Also, projections

tion’s  management  is  responsible  for  maintaining  effective  internal

of any evaluation of effectiveness to future periods are subject to the

control over financial reporting and for its assessment of the effec-

risk  that  controls  may  become  inadequate  because  of  changes  in

tiveness of internal control over financial reporting. Our responsibility

conditions, or that the degree of compliance with the policies or pro-

is to express an opinion on management’s assessment and an opin-

cedures may deteriorate.

ion on the effectiveness of the company’s internal control over finan-

cial reporting based on our audit. 

In  our  opinion,  management’s  assessment  that  BOK  Financial  Cor-

poration maintained effective internal control over financial reporting

We  conducted  our  audit  in  accordance  with  the  standards  of  the

as  of  December  31,  2005,  is  fairly  stated,  in  all  material  respects,

Public Company Accounting Oversight Board (United States). Those

based on the COSO criteria. Also, in our opinion, BOK Financial Cor-

standards require that we plan and perform the audit to obtain rea-

poration maintained, in all material respects, effective internal control

sonable  assurance  about  whether  effective  internal  control  over

over  financial  reporting  as  of  December  31,  2005,  based  on  the

financial reporting was maintained in all material respects. Our audit

COSO criteria.

included obtaining an understanding of internal control over financial

reporting,  evaluating  management’s  assessment,  testing  and  evalu-

ating the design and operating effectiveness of internal control, 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

We also have audited, in accordance with the standards of the Pub-

lic Company Accounting Oversight Board (United States), the 2005

consolidated financial statements of BOK Financial Corporation and
our  report  dated  March  10,  2006  expressed  an  unqualified  opinion
thereon. 

Ernst & Young LLP

Tulsa, Oklahoma

March 10, 2006

38

 Financials_v5.qxd  2/24/06  3:46 PM  Page 39

Consolidated Financial Statements

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
Service charges and fees on deposit accounts
Mortgage banking revenue
Other revenue

Total fees and commissions

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

Total other operating revenue

Other Operating Expense
Personnel 
Business promotion
Contribution of stock to BOK Charitable Foundation
Professional fees and services
Net occupancy and equipment
Data processing and communications
Printing, postage and supplies
Net (gains) losses and operating expenses on repossessed assets
Amortization of intangible assets
Mortgage banking costs
Recovery for impairment of mortgage servicing rights
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

2005

554,691
205,952
7,329
213,281
675
1,287
769,934

210,400
95,826
14,367
320,593
449,341
12,441
436,900

44,222
72,036
65,187
98,361
30,681
35,114
345,601
7,061
(6,895)
1,179
346,946

258,971
17,964
—
16,596
50,195
67,026
15,066
572
6,943
14,562
(3,915)
25,126
469,106
314,740
113,235
201,505

3.14
3.01

$

$

$
$

2004

2003

$

$

$
$

408,115
197,884
7,359
205,243
573
353
614,284

144,433
38,847
7,761
191,041
423,243
20,439
402,804

41,107
64,816
57,532
93,712
28,189
27,209
312,565
887
(3,088)
(1,474)
308,890

240,661
15,618
5,561
15,487
47,289
60,025
14,034
(4,016)
8,138
18,167
(1,567)
21,827
441,224
270,470
91,447
179,023

3.00
2.68

$

$

$
$

375,788
180,581
7,898
188,479
625
281
565,173

131,929
32,272
9,477
173,678
391,495
35,636
355,859

41,152
57,352
45,763
82,042
52,336
27,573
306,218
822
7,188
(9,375)
304,853

222,922
12,937
—
17,935
45,967
53,398
13,930
271
8,101
40,296
(22,923)
20,604
413,438
247,274
88,914
158,360

2.67
2.38

64,067,873
67,047,064

59,128,395
66,732,496

58,699,951
66,509,121

See accompanying notes to consolidated financial statements.

39

 Financials_v5.qxd  2/24/06  3:46 PM  Page 40

Consolidated Financial Statements

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: 2005 — $243,406; 2004 — $222,636)
Total securities

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
Receivable on unsettled security transactions
Derivative contracts
Other assets

Total assets

Liabilities and Shareholders’ Equity
Noninterest-bearing demand deposits
Interest-bearing deposits:
Transaction
Savings
Time
Total deposits

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

Total liabilities

December 31,

2005

2004

$

684,857
14,465
18,633

4,821,575
—
245,125
5,066,700
9,139,978
(103,876)
9,036,102
179,627
99,874
263,022
54,097
8,476
33,001
—
452,878
341,175
$16,252,907

$

503,715
27,376
9,692

4,080,696
512,494
221,094
4,814,284
7,928,967
(108,618)
7,820,349
172,643
79,644
242,594
45,678
3,763
31,799
56,873
130,297
206,953
$14,145,660

$ 1,865,948

$ 1,927,119

5,257,295
154,015
4,098,060
11,375,318
1,337,911
1,054,298
295,964
18,057
33,001
8,429
466,669
124,106
14,713,753

3,947,088
156,339
3,643,852
9,674,398
1,555,507
1,015,000
151,594
71,062
31,799
—
137,538
110,268
12,747,166

Shareholders’ equity:
Preferred stock
Common stock ($.00006 par value; 2,500,000,000 shares authorized; 

shares issued and outstanding: 2005 — 67,904,533; 2004 — 60,420,811)

Capital surplus
Retained earnings
Treasury stock (shares at cost: 2005 — 1,202,125; 2004 — 998,393)
Accumulated other comprehensive loss
Total shareholders’ equity

Total liabilities and shareholders’ equity
See accompanying notes to consolidated financial statements.

—

12

4
656,579
990,422
(40,040)
(67,811)
1,539,154
$16,252,907

4
631,747
809,261
(30,905)
(11,625)
1,398,494
$14,145,660

40

 Financials_v5.qxd  2/24/06  3:46 PM  Page 41

Consolidated Financial Statements

Consolidated 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:
Provision for credit losses
Recovery for mortgage servicing rights impairment
Unrealized losses from derivatives
Depreciation and amortization
Tax benefit on exercise of stock options
Stock-based compensation
Net (accretion) amortization of securities discounts and premiums
Net gain on sale of assets
Contribution of stock to BOK Charitable Foundation
Mortgage loans originated for resale
Proceeds from sale of mortgage loans held for resale
Change in 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
Net change in other investment assets
Proceeds from disposition of assets
Purchases of assets
Cash and cash 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 certificates of deposit
Net change in other borrowings
Change in amount receivable (due) on unsettled security transactions
Pay down of revolving line of credit
Issuance of preferred, common and treasury stock, net
Issuance of subordinated debenture
Net change in derivative margin accounts
Net payments or proceeds on derivative liability contracts
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
Payment of dividends in common stock
See accompanying notes to consolidated financial statements.

41

2005

2004

2003

$

201,505

$

179,023

$

158,360

12,441
(3,915)
8,463
44,860
3,583
4,848
(1,159)
(15,230)
—
(783,498)
770,115
(8,941)
(20,230)
17,592
(53,005)
33,102
210,531

1,537,628
54,336
868,401
(78,675)
(2,731,763)
(1,287,158)
4,290
33,718
88,527
(49,199)

(29,093)
(1,588,988)

1,246,713
457,412
(83,299)
65,302
(95,000)
7,032
147,855
(167,137)
(9,407)
(2,439)
(20,344)
1,546,688
168,231
531,091
699,322

312,200
104,543
11,633
—

$

$

20,439
(1,567)
6,124
47,298
4,609
11,306
(3,116)
(11,678)
5,561
(635,624)
666,549
(1,869)
(4,664)
(48,766)
(14,722)
39,218
258,121

2,652,554
61,583
1,036,014
(94,947)
(3,800,015)
(554,128)
(9,368)
3,208
69,320
(34,404)

35,636
(22,923)
5,888
64,425
1,325
5,746
8,965
(44,426)
—
(1,314,453)
1,420,475
(2,713)
(2,962)
(28,442)
11,366
(13,906)
282,361

5,089,734
65,504
2,410,213
(55,678)
(8,145,655)
(741,405)
(41,226)
(3,849)
65,989
(62,926)

—
(670,183)

2,123
(1,417,176)

185,409
269,126
(55,811)
(65,132)
—
7,132
—
(50,202)
10,259
—
(1,540)
299,241
(112,821)
643,912
531,091

192,187
95,282
6,013
65,899

984,603
107,522
65,610
74,160
(95,000)
4,627
—
(31,763)
45,538
—
(785)
1,154,512
19,697
624,215
643,912

176,225
81,596
6,378
58,300

$

$

$

$

 Financials_v5.qxd  2/24/06  3:46 PM  Page 42

Consolidated Financial Statements

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

December 31, 2002
Comprehensive income:
Net income
Other comprehensive loss, net of tax

Comprehensive income

Exercise of stock options
Tax benefit on exercise of stock options
Stock-based compensation
Cash dividends on preferred stock
Redeem nonvoting preferred units
Dividends paid in shares of common stock:

Preferred stock
Common stock
December 31, 2003

Comprehensive income:
Net income
Other comprehensive loss, net of tax

Comprehensive income

Exercise of stock options
Conversion of preferred stock to common
Tax benefit on exercise of stock options
Stock-based compensation
Cash dividends on preferred stock
Dividends paid in shares of common stock
December 31, 2004
Comprehensive income:
Net income
Other comprehensive loss, net of tax

Comprehensive income

Treasury stock purchase
Exercise of stock options
Conversion of preferred stock to common
Tax benefit on exercise of stock options
Stock-based compensation
Cash dividends on:
Preferred stock
Common stock
December 31, 2005

See accompanying notes to consolidated financial statements.

Preferred Stock

Shares
250,000

Amount
$25

Common Stock

Shares
55,750

Amount
$ 3

—
—

603
—
—
—
—

23
1,680
58,056

—
—

616
—
—
—
—
1,749
60,421

—
—

—
563
6,921
—
—

—
—

—
—
—
—
—

—
1
4

—
—

—
—
—
—
—
—
4

—
—

—
—
—
—
—

—
—
67,905

—
—
$ 4

—
—

—
—
—
—
—

—
—
250,000

—
—

—
(25)
—
—
—
—
249,975

—
—

—
—
(249,975)
—
—

—
—
—

—
—

—
—
—
—
(13)

—
—
12

—
—

—
—
—
—
—
—
12

—
—

—
—
(12)
—
—

—
—
$ —

42

 Financials_v5.qxd  2/24/06  3:46 PM  Page 43

Consolidated Financial Statements

Accumulated
Other
Comprehensive
Income (Loss)
$ 43,088

—
(34,629)

—
—
—
—
—

—
—
8,459

—
(20,084)

—
—
—
—
—
—
(11,625)

—
(56,186)

—
—
—
—
—

Capital
Surplus
$475,054

—
—

10,953
1,325
219
—
—

750
58,293
546,594

—
—

12,507
—
4,609
1,099
—
66,938
631,747

—
—

—
13,728
12
3,583
7,509

Retained
Earnings
$598,777

158,360
—

—
—
—
(750)
—

(750)
(57,585)
698,052

179,023
—

—
—
—
—
(1,875)
(65,939)
809,261

201,505
—

—
—
—
—
—

Treasury Stock

Shares
683

Amount
$(17,421)

Total
$1,099,526

—
—

145
—
—
—
—

—
21
849

—
—

122
—
—
—
—
27
998

—
—

60
144
—
—
—

—
—

(6,326)
—
—
—
—

—
(744)
(24,491)

—
—

(5,375)
—
—
—
—
(1,039)
(30,905)

—
—

(2,439)
(6,696)
—
—
—

158,360
(34,629)
123,731
4,627
1,325
219
(750)
(13)

—
(35)
1,228,630

179,023
(20,084)
158,939
7,132
—
4,609
1,099
(1,875)
(40)
1,398,494

201,505
(56,186)
145,319
(2,439)
7,032
—
3,583
7,509

—
—
$(67,811)

—
—
$656,579

(375)
(19,969)
$990,422

—
—
1,202

—
—
$ (40,040)

(375)
(19,969)
$1,539,154

43

 Financials_v5.qxd  2/24/06  3:46 PM  Page 44

Notes to Consolidated Financial Statements

(1) Significant Accounting Policies 

Use of Estimates

Basis of Presentation

The Consolidated Financial Statements of BOK Financial Corpora-

tion (“BOK Financial” or “the Company”) have been prepared in con-

formity with accounting principles generally accepted in the United

States, including general practices of the banking industry. The con-

Preparation  of  BOK  Financial’s  consolidated  financial  statements

requires management to make estimates of future economic activi-

ties,  including  loan  collectibility,  prepayments  and  cash  flows  from

customer accounts. These estimates are based upon current condi-

tions and information available to management. Actual results may

differ significantly from these estimates.

solidated financial statements include the accounts of BOK Financial

and its subsidiaries, principally Bank of Oklahoma, N.A. and its sub-

Acquisitions

sidiaries (“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 Ari-

zona, N.A. and BOSC, Inc. 

Assets and liabilities acquired, including identifiable intangible assets,

are  recorded  at  fair  values  on  the  acquisition  dates.  The  Consoli-

dated Statements of Earnings include the results of operations from

During  2005,  the  Company  adopted  FASB  Interpretation  No.  39,

the dates of acquisition.

“Offsetting Amounts Related to Certain Contracts” (“FIN 39”). FIN 39

permits, but does not require, reporting derivative assets and liabili-

Intangible Assets 

ties on a net by counterparty basis provided certain specified criteria

are met. These criteria require written bilateral netting agreements

between the Company and each of its counterparties that create a

single legal claim or obligation to pay or receive the net amount in

settlement  of  the  individual  derivative  contracts.  Amounts  reported

for derivative assets and liabilities in prior periods have been reclas-

sified for consistent presentation.

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 Enti-

ties,” 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

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 five-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.

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 intan-

BOK  Financial,  through  its  subsidiaries,  provides  a  wide  range  of

gible assets are amortized using accelerated or straight-line methods,

financial services to commercial and industrial customers, other finan-

as  appropriate,  over  the  estimated  benefit  periods.  These  periods

cial  institutions  and  consumers  throughout  Oklahoma;  Northwest

range from 5 years to 20 years. The net book values of core deposit

Arkansas;  Dallas  and  Houston,  Texas;  Albuquerque,  New  Mexico;

intangible assets are evaluated for impairment when economic con-

Denver,  Colorado,  and  Phoenix,  Arizona.  These  services  include

ditions indicate impairment may exist.

depository  and  cash  management;  lending  and  lease  financing;

mortgage  banking;  securities  brokerage,  trading  and  underwriting;

and personal and corporate trust.

44

 Financials_v5.qxd  2/24/06  3:46 PM  Page 45

Notes to Consolidated Financial Statements

Cash Equivalents 

Derivative Instruments

Due from banks, funds sold (generally federal funds sold for one-day

Derivative instruments may be used by the Company as part of its

periods) and resell agreements (which generally mature within one to

interest rate risk management programs or may be offered to cus-

30 days) are considered cash equivalents.

tomers. All derivative instruments are carried at fair value. The deter-

Securities

mination of fair value of derivative instruments considers changes in

interest  rates,  commodity  prices,  foreign  exchange  rates  and  coun-

terparty credit ratings, when appropriate. Changes in fair value are

Securities are identified as trading, investment (held to maturity) or

generally reported in income as they occur.

available for sale at the time of purchase based upon the intent of

management,  liquidity  and  capital  requirements,  regulatory  limita-

tions  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 cer-

tain 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 and manage-

ment’s  intent  and  ability  to  hold  the  security  until  the  fair  value

exceeds amortized cost. An impairment charge is recorded against

Derivative instruments used to manage interest rate risk consist pri-

marily  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 — gains or losses

on derivatives.

In certain circumstances, interest rate swaps may be designated as fair

value hedges and may qualify for hedge accounting. In these circum-

stances, changes in the fair value of the hedged asset or liability that

are attributable to the hedged risk are also reported in other operat-

ing revenue — gains or losses on derivatives, and may partially or com-

pletely offset the change in fair value of the interest rate swap. Fair

value hedges are considered to be effective if the cumulative fair value

adjustment of the interest rate swap is within a range of 80% to 120%

of the change in fair value of the hedged asset or liability.

earnings if the loss is determined to be other than temporary. Real-

Interest rate swaps may be designated as cash flow hedges of vari-

ized gains and losses on sales of securities are based upon the amor-

able rate assets or liabilities, or of anticipated transactions. Changes

tized cost of the specific security sold. Available for sale securities are

in  the  fair  value  of  interest  rate  swaps  designated  as  cash  flow

separately identified as pledged to creditors if the creditor has the

hedges are recorded in accumulated other comprehensive income to

right to sell or repledge the collateral.

the extent they are effective. The amount recorded in other compre-

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-

hensive 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.

announced mortgage-backed securities. These commitments are car-

If a derivative instrument that had been designated as a fair value

ried at fair value if they are considered derivative contracts. These

hedge  is  terminated  or  if  the  hedge  designation  is  removed  or

commitments are not reflected in BOK Financial’s balance sheet until

deemed to no longer be effective, the difference between the hedged

settlement date if they meet specific criteria exempting them from the

item’s carrying value and its face amount is recognized into income

definition of derivative contracts.

over  the  remaining  original  hedge  period.  Similarly,  if  a  derivative

instrument that had been designated as a cash flow hedge is termi-

nated or if the hedge designation is removed or deemed to no longer

45

 Financials_v5.qxd  2/24/06  3:46 PM  Page 46

Notes to Consolidated Financial Statements

be  effective,  the  amount  remaining  in  accumulated  other  compre-

Loan  origination  and  commitment  fees  and  direct  loan  acquisition

hensive income is reclassified to earnings in the same period as the

and origination costs, when significant, are deferred and amortized

hedged item.

as an adjustment to yield over the life of the loan or over the commit-

BOK Financial also enters into mortgage loan commitments that are

ment period, as applicable.

considered derivative instruments. Forward sales contracts are used

Mortgage loans held for sale are carried at the lower of aggregate

to  hedge  these  mortgage  loan  commitments  as  well  as  mortgage

cost  or  market  value.  Mortgage  loans  held  for  sale  that  are  desig-

loans held for sale. Mortgage loan commitments are carried at fair

nated as hedged assets are carried at fair value based on sales com-

value based upon quoted prices, excluding the value of loan servicing

mitments or market quotes. Changes in fair value after the date of

rights or other ancillary values. Changes in fair value of the mortgage

designation  of  an  effective  hedge  are  recorded  in  other  operating

loan commitments and forward sales contracts are reported in other

revenue — mortgage banking revenue.

operating revenue — mortgage banking revenue.

Derivative contracts are also offered to customers to assist in hedging

their risks of adverse changes in commodity prices, interest rates and

foreign  exchange  rates.  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 Finan-

cial  and  various  counterparties.  These  contracts  are  carried  at  fair

value. Compensation for credit risk and reimbursement of administra-

tive costs are recognized over the life of the contracts and included in

other operating revenue — brokerage and trading revenue.

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 nonac-

crual status. Payments on nonaccrual loans are applied to principal

or reported as interest income, according to management’s judgment

as to the collectibility of principal.

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 evalu-

ation of the probable estimated losses inherent in the portfolio, and

includes  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 evalu-

ation in accordance with Statement of Financial Accounting Stan-

dards 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 or the fair value of the collateral for certain

collateral  dependent  loans.  Loans  are  considered  to  be  impaired

when it becomes probable that BOK Financial will be unable to col-

lect 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  mort-

gage  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 gen-

46

 Financials_v5.qxd  2/24/06  3:46 PM  Page 47

Notes to Consolidated Financial Statements

erally accepted accounting principles and standards established by

Premises and Equipment

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

Premises  and  equipment  are  carried  at  cost  including  capitalized

interest, when appropriate, less accumulated depreciation and amor-

tization. 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  mainte-

charge-offs  are  taken  in  the  quarter  in  which  the  loss  is  identified.

nance costs are charged to expense as incurred.

Additionally, all unsecured or under-secured loans that are past due

by 180 days or more are charged off within 30 days. Recoveries of

loans previously charged off are added to the reserve.

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  over  the

Transfers of Financial Assets

lease term.

BOK Financial transfers pools of financial assets as part of its mort-

Mortgage Servicing Rights

gage banking activities and periodically may transfer other financial

assets. These transfers are recorded as sales for financial reporting

purposes when the criteria for surrender of control specified in State-

ment  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 a residual interest in excess cash flows generated by the

assets and may incur a recourse obligation. The carrying value of the

assets sold is allocated between the financial components sold and

retained based on relative fair values. The fair value of the retained

assets is determined by a discounting of expected future net cash to

be  received  using  assumed  market  interest  rates  for  these  instru-

ments. Residual interests are carried at fair value. Changes in fair val-

ues are recorded in income. Servicing rights are carried at the lower

of  amortized  cost  or  fair  value.  A  valuation  allowance  is  provided

when amortized cost of servicing rights exceeds fair value.

Real Estate and Other Repossessed Assets

Real estate and other repossessed assets are assets acquired in par-

tial 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 cur-

rent  fair  value.  Income  generated  by  these  assets  is  recognized  as

Capitalized  mortgage  servicing  rights  are  carried  at  the  lower  of

amortized cost or fair value. Amortization is determined in proportion

to the projected cash flows over the estimated lives of the servicing

portfolios. The actual cash flows are dependent upon the prepayment

of the mortgage loans and may differ significantly from the estimates.

There is no active market for trading in mortgage servicing rights. A

cash flow model is used to determine fair value. Key assumptions and

estimates including projected prepayment speeds and assumed serv-

icing  costs,  earnings  on  escrow  deposits,  ancillary  income  and  dis-

count rates used by this model are based on current market sources.

A separate third party model is used to estimate prepayment speeds

based on interest rates, housing turnover rates, estimated loan cur-

tailment,  anticipated  defaults  and  other  relevant  factors.  The  pre-

payment model is updated daily for changes in market conditions. At

least annually, we request estimates of fair value from outside sources

to corroborate the results of the valuation model.

Permanent  impairment  of  mortgage  servicing  rights  is  evaluated

quarterly. A strata is considered to be permanently impaired if the fair

value does not exceed amortized cost after assuming a 300 basis

point increase in mortgage interest rates. The amortized cost of the

asset is reduced to the calculated fair value through a charge against

received, and operating expenses are recognized as incurred.

the valuation allowance.

47

 Financials_v5.qxd  2/24/06  3:46 PM  Page 48

Notes to Consolidated Financial Statements

Originated  mortgage  servicing  rights  are  recognized  when  either

annually. Unrecognized prior service cost and net gains or losses are

mortgage loans are originated pursuant to an existing plan for sale

amortized  on  a  straight-line  basis  over  the  lesser  of  the  average

or, if no such plan exists, when the mortgage loans are sold. The fair

remaining service periods of the participants or 10 years. Employer

value of the originated servicing rights is determined at closing based

contributions  to  the  Pension  Plan  are  in  accordance  with  Federal

upon  relative  fair  value.  Purchased  mortgage  servicing  rights  are

income tax regulations.

recorded at cost.

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

Employer  contributions  to  the  Thrift  Plans,  which  match  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.

remit to BOK Financial amounts determined to be currently payable.

Stock Compensation Plans

Current  income  tax  expense  is  based  on  an  effective  tax  rate  that

BOK  Financial  has  adopted  the  expense  recognition  provisions  of

considers statutory federal and state income tax rates and perma-

Financial Accounting Standards Board Statement No. 123, “Accounting

nent differences between income and expense recognition for finan-

for Stock-Based Compensation” (“FAS 123”), as amended by Statement

cial  reporting  and  income  tax  purposes.  The  amount  of  current

of  Financial  Accounting  Standards  No.  148,  “Accounting  for  Stock-

income  tax  expense  recognized  in  any  period  may  differ  from

Based Compensation — Transition and Disclosure” (“FAS 148”).

amounts reported to taxing authorities.

Grant date fair value of stock options is based on the Black-Scholes

BOK  Financial  has  a  tax  contingency  reserve,  which  is  included  in

option  pricing  model.  Stock  options  generally  have  graded  vesting

accrued current income taxes payable, for the uncertain portion of

over 7 years. Each tranche is considered a separate award for valu-

recorded tax benefits and related interest. These uncertainties result

ation  and  compensation  cost  recognition.  Grant  date  fair  value  of

from the application of complex tax laws, rules, regulations and inter-

non-vested  shares  is  based  on  the  current  market  value  of  BOK

pretations, primarily in state taxing jurisdictions. The adequacy of this

Financial common stock. Non-vested shares cliff vest in 5 years.

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.

Compensation  cost  is  recognized  as  expense  over  the  vesting

period.  Expense  is  adjusted  for  forfeitures  as  they  occur.  Stock-

based compensation awarded to certain officers has performance

conditions that affect the number of awards granted. Compensation

Deferred tax assets and liabilities are determined based upon the dif-

cost is adjusted based on the probable outcome of the performance

ference between the values of the assets and liabilities as reflected in

conditions.

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.

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 com-

pensation  granted  to  these  officers  is  considered  liability  awards.

Changes in the fair value of liability awards are recognized as com-

pensation expense in the period of the change.

Employee Benefit Plans

Other Operating Revenue

BOK  Financial  sponsors  a  defined  benefit  cash  balance  pension

plan  (“Pension  Plan”),  qualified  profit  sharing  plans  (“Thrift  Plans”)

and  employee  healthcare  plans.  Pension  Plan  costs,  which  are

based upon actuarial computations of current costs, are expensed

Fees and commissions 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 rev-

enue if amounts are subsequently deemed to be uncollectible. 

48

 Financials_v5.qxd  2/24/06  3:46 PM  Page 49

Notes to Consolidated Financial Statements

Effect of Pending Statements of
Financial Accounting Standards

Financial Accounting Standards Board

Statement of Financial Accounting Standards 123R, 

“Share-Based Payments” (“FAS 123R”)

FAS 123R requires companies to recognize in income statements the

grant-date fair value of stock options and other equity-based com-

pensation issued to employees. Previously, FAS 123 recommended,

but did not require income statement recognition of the fair value of

equity-based  compensation.  FAS  123R  also  requires  that  share-

based payments that meet specified criteria be classified as liability

awards and carried at current fair value. Fair value is determined at

each balance sheet date until the award is settled. Share-payments

that will be settled in equity instruments are measured at grant-date

fair value and not re-measured for subsequent changes in fair value.

FSP 115-1 was effective for reporting periods beginning after Decem-

ber 15, 2005. Guidance provided by FSP 115-1 had previously been

issued in other authoritative literature, including SEC Staff Account-

ing  Bulletin  No.  59,  and  we  do  not  expect  a  significant  impact  on

future financial statements.

(2) Acquisitions

Effective April 6, 2005, BOK Financial acquired all of the outstand-

ing  common  stock  of  Valley  Commerce  Bancorp,  Ltd.  (“VCB”)  for

$32.0  million  in  cash.  VCB  and  its  wholly-owned  subsidiary,  Valley

Commerce Bank, had total assets of $143 million, including loans of

$93  million,  total  deposits  of  $110  million  and  total  shareholders’

equity of $12.7 million. As of August 15, 2005, Valley Commerce Bank

was renamed Bank of Arizona, N.A. The VCB acquisition is consistent

with the Company’s strategy to expand into high-growth markets.

FAS  123R  was  effective  for  annual  periods  beginning  on  or  after

On September 10, 2003, BOK Financial paid $77.9 million in cash for

June 15, 2005.

We previously adopted the preferred income statement recognition

all the outstanding stock of Colorado Funding Company and its Col-

orado State Bank and Trust subsidiary. 

methods of the original FAS 123. Management does not expect FAS

These transactions were accounted for by the purchase method of

123R to have a significant effect on its financial statements. 

accounting.  Aggregate  allocation  of  the  purchase  price  to  the  net

FSP 115-1 and FAS 124-1 The Meaning of Other-Than-Temporary

Impairment and its Application to Certain Investments (“FSP 115-1”) 

FSP 115-1 addressed the determination as to when an investment is

considered impaired, whether that impairment is other-than-tempo-

rary and the measurement of an impairment loss. It also addressed

accounting considerations subsequent to the recognition of an other-

than-temporary impairment and disclosures about unrealized losses

that have not been recognized.

An investment is considered impaired when its fair value is less than

cost. Determination of when an unrealized loss must be recognized as

an other-than-temporary impairment is based on an assessment of

factors, including the nature of the asset, the financial condition and

near-term prospects of the issuer, whether the asset can be prepaid

by the issuer in a manner that the investor will not recover its invest-

ment, the severity and duration of the impairment and the investor’s

ability and intent to hold the asset until the fair value recovers.

assets acquired was as follows (in thousands):

Cash and cash equivalents
Securities
Loans
Less reserve for loan losses
Loans, net
Identifiable intangible assets
Other assets
Total assets acquired

Deposits
Other borrowings
Other liabilities
Net assets acquired
Less purchase price
Goodwill

2005
$ 2,921
35,355
92,821
1,072
91,749
4,380
11,334
145,739

110,217
18,155
2,003
15,364
32,014
$ 16,650

2003
$ 80,051
14,507
222,530
2,282
220,248
18,770
20,809
354,385

301,439
5,098
11,951
35,897
77,928
$ 42,031

The results of operations of these acquisitions would not have been

significant  to  the  Company’s  consolidated  results  during  the  pre-

acquisition periods of 2005, 2004 and 2003. None of the intangi-

ble assets acquired are deductible for tax purposes.

49

 Financials_v5.qxd  2/24/06  3:46 PM  Page 50

Notes to Consolidated Financial Statements

(3) Securities

Investment Securities

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

2005

December 31,

U.S. Treasury
Municipal and other tax-exempt
Mortgage-backed U.S. agency

securities

Other debt securities

Total

Amortized
Cost
$ 1,994
240,359

Fair
Value
$ 1,976
238,649

Gross Unrealized
Loss
Gain
$ —
903

(18)
(2,613)

$

Amortized
Cost

Fair
Value

$

— $

216,986

—
218,465

2004

Gross Unrealized
Loss
Gain

$

— $

2,501

—
(1,022)

—
2,772
$245,125

—
2,781
$243,406

—
9
$ 912

—
—
$ (2,631)

1,287
2,821

1,336
2,835
$221,094 $222,636

49
14
$ 2,564

—
—
$ (1,022)

The amortized cost and fair values of investment securities at December 31, 2005, by contractual maturity, are as shown in the following table

(dollars in thousands):

U.S. Treasury:

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 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

Five to
Ten Years

Over
Ten Years

$

—
—
—

$ 57,284
57,223
4.79

$ 1,985
1,985
4.15

$ 59,269
59,208
4.77

$ 1,994
1,976
3.64

$146,544
145,303
5.03

$

99
103
7.00

$148,637
147,382
5.01

$

—
—
—

$ 26,900
26,647
5.61

$

675
680
5.31

$ 27,575
27,327
5.60

$

—
—
—

$ 9,631
9,476
6.26

$

13
13
—

$ 9,644
9,489
6.26

Weighted
Average
Maturity2

1.17

3.07

2.34

3,05

Total

$ 1,994
1,976
3.64

$240,359
238,649
5.11

$ 2,772
2,781
4.51

$245,125
243,406
5.09

$245,125
243,406
5.09

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.

50

 Financials_v5.qxd  2/24/06  3:46 PM  Page 51

Notes to Consolidated Financial Statements

Available for Sale Securities

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

December 31,

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

Amortized
Cost
16,037
17,153

$

$

Fair
Value
15,827
17,078

2005

$

Gross Unrealized
Gain
Loss
—
3

$

(210)
(78)

2004

Amortized
Cost

$

27,119 $
414

Fair
Value
27,062
404

Gross Unrealized
Loss
Gain

$

$

31
1

(88)
(11)

3,507,047
1,277,161
4,784,208
124
108,914
$4,926,436

3,424,356
1,250,701
4,675,057
124
113,489
$4,821,575

1,416
201
1,617
1
4,575
$ 6,196

(84,107)
(26,661)
(110,768)
(1)
—
$(111,057)

3,067,611
1,423,613
4,491,224
515
90,343

3,052,375
1,418,770
4,471,145
528
94,051
$4,609,615 $4,593,190

8,079
2,378
10,457
13
3,708
$ 14,210

(23,315)
(7,221)
(30,536)
—
—
$ (30,635)

The amortized cost and fair values of available for sale securities at December 31, 2005, by contractual maturity, are as shown in the following table (dollars
in thousands):

One to
Five Years

Five to
Ten Years

Over
Ten Years

Total

Weighted
Average
Maturity5

Less than
One Year

$ 9,987
9,847
2.78

$

$

100
100
4.67

65
66
6.26

$ 6,050
5,980
3.50

$

$

—
—
—

26
25
6.18

$ 10,152
10,013
2.80

$ 6,076
6,005
3.51

U.S. Treasury:

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

$

—
—
—

$ 12,005
11,960
3.80

$

33
33
7.60

$ 12,038
11,993
3.81

$

—
—
—

$ 5,048
5,018
3.17

$

—
—
—

$ 5,048
5,018
3.17

1.08

9.40

2.91

5.37

2

3

$

$

$

$

16,037
15,827
3.05

17,153
17,078
3.80

124
124
6.60

33,314
33,029
3.45

$4,784,208
4,675,057
4.45

$ 108,914
113,489
2.99

$4,926,436
4,821,575
4.41

1 Calculated on a taxable equivalent basis using a 39% effective tax rate.
2 The average expected lives of mortgage-backed securities were 3.4 years based upon current prepayment assumptions.
3 Primarily common stock and preferred stock of U.S. Government agencies 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.

51

 Financials_v5.qxd  2/24/06  3:46 PM  Page 52

Notes to Consolidated Financial Statements

Sales of available for sale securities resulted in gains and losses as

Net unrealized losses on securities totaled $107 million at December

follows (in thousands):

Proceeds
Gross realized gains
Gross realized losses
Related federal and state
income tax expense
(benefit)

2005
$1,537,628
5,145
12,040

2004

2003

$2,652,554 $5,089,734
30,373
23,185

10,452
13,540

(2,480)

(1,044)

2,585

In addition to securities that have been reclassified as pledged to cred-

itors, securities with an amortized cost of $2.7 billion and $2.6 billion at

December 31, 2005 and 2004, respectively, have been pledged as

collateral  for  repurchase  agreements,  public  and  trust  funds  on  de-

posit and for other purposes, as required by law. The secured parties

do not have the right to sell or repledge these securities.

Temporarily Impaired Securities 
(In Thousands)

Less Than 12 Months
Unrealized
Loss

Fair
Value

31,  2005  compared  with  net  unrealized  losses  of  $15  million  at

December 31, 2004 due primarily to rising interest rates. The aggre-

gate  gross  amount  of  unrealized  losses  at  December  31,  2005

totaled  $114  million.  Unrealized  losses  were  due  primarily  to  rising

interest  rates.  None  of  the  unrealized  losses  resulted  from  credit

quality concerns. Management evaluated the securities with unreal-

ized losses to determine if we believe that the losses were tempo-

rary. This evaluation considered factors such as causes of the unre-

alized losses and prospects for recovery over various interest rate

scenarios and time periods. The Company also considered the abil-

ity and intent to hold the securities until the fair values exceed amor-

tized cost. It is our belief, based on currently available information

and  our  evaluation,  that  the  unrealized  losses  in  these  securities

were temporary. 

12 Months or Longer

Total

Investment:

U.S. Treasury
Municipal and other tax exempt

$

1,976
110,872

$

18
1,464

$

—
47,765

Fair
Value

Unrealized
Loss

$

—
1,149

Fair
Value

Unrealized
Loss

$

1,976
158,637

$

18
2,613

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

4,950
—
8,093

45
—
59

10,877
34
296

165
1
19

15,827
34
8,389

210
1
78

U. S. agencies
Other

Total

1,188,731
299,168
$1,613,790

20,262
4,399
$26,247

2,027,695
901,533
$2,988,200

63,845
22,262
$87,441

3,216,426
1,200,701
$4,601,990

84,107
26,661
$113,688

52

 Financials_v5.qxd  2/24/06  3:46 PM  Page 53

Notes to Consolidated Financial Statements

(4) Derivatives

counterparties to minimize the risk of changes in commodity prices,

interest rates or foreign exchange rates. The counterparty contracts

The fair values of derivative contracts at December 31, 2005 were (in

are  identical  to  the  customer  contracts,  except  for  a  fixed  pricing

thousands):

spread or a fee paid to BOK Financial as compensation for adminis-

trative costs, credit risks and profit.

Customer Risk Management Programs:

Interest rate contracts
Energy contracts
Cattle contracts
Foreign exchange contracts

Total Customer Derivatives

Assets

Liabilities

$

18,741
418,494
1,014
14,629
452,878

$

20,309
416,106
970
14,629
452,014

Interest Rate Risk Management Programs

Total Derivative Contracts

—
$ 452,878

14,655
$ 466,669

Customer Risk Management Programs

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,  or  specific  prime-based  loans  to  fixed  rate.

Interest rate swaps are designated as fair value or cash flow hedges

when the specific criteria required by generally accepted accounting

principles  are  met.  These  criteria  include  requirements  that  deriva-

tives  are  highly  effective  in  offsetting  changes  in  fair  value  or  cash

BOK Financial offers programs that permit its customers to manage

flow of the hedged assets or liabilities.

various risks, including fluctuations in energy and cattle prices, inter-

est rates and foreign exchange rates. Derivative contracts are exe-

cuted  between  the  customers  and  BOK  Financial.  Offsetting  con-

tracts  are  executed  between  BOK  Financial  and  selected

The following table details interest rate swaps and, when applicable,

the  associated  hedged  assets  or  liabilities  at  December  31,  2005

(dollars in thousands):

Hedged Asset / Liability

Maturity
Fair value hedges:

Description

Subordinated debt

2006 Certificates of deposit
2007 Certificates of deposit
2007
2008 Certificates of deposit
2009 Certificates of deposit
2010 Certificates of deposit
2011 Certificates of deposit
Total fair value hedges

Amount

$186,937
139,875
150,000
21,920
54,544
9,564
29,435
592,275

Cash flow hedges:

2008

Prime rate loans
Total cash flow hedges

100,000
100,000

Not designated as hedges:

2006
2006
2009
2011

Total

—
—
—
—
$692,275

Weighted Average

Fixed Rate
(Paid)

Floating Rate
Received2

(3.590) %
(3.634)
(7.125)
(3.000)
(3.945)
(3.626)
(3.983)

—

—
—
—
—

—%
—
—
—
—
—
—

7.250

—
—
—
—

1 Floating rates are based on 30-day LIBOR, unless otherwise noted.
2 Floating rate based on prime.

Interest Rate Swap

Weighted Average

Notional
Amount

Fixed Rate
Received (Paid)

Floating Rate
Received (Paid)1

Positive
Fair Value

Negative
Fair Value

$187,000
140,000
150,000
22,000
55,000
10,000
30,000
594,000

100,000
100,000

12,497
33,000
15,000
29,311
$783,808

3.818%
3.795
3.165
3.093
4.052
3.657
4.013

(4.390)%
(4.390)
(4.390)
(4.390)
(4.390)
(4.390)
(4.390)

$ —
—
—
—
—
—
—
—

$

847
1,995
3,947
811
1,293
456
1,128
10,477

5.926

(7.250)2

—
—

3,441
3,441

(5.425)
2.699
4.432
(5.358)

4.390
(4.390)
(4.390)
4.390

—
—
—
—
$ —

48
255
175
259
$14,655

During 2005 and 2004, net interest revenue was decreased by $1.4 million and increased by $9.9 million, respectively, from the settlement of

amounts receivable or payable on interest rate swaps.

53

 Financials_v5.qxd  2/24/06  3:46 PM  Page 54

Notes to Consolidated Financial Statements

(5) Loans 

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

December 31,

Commercial
Commercial real estate
Residential mortgage
Residential mortgage held for sale
Consumer
Total
Loans past due (90 days)
Foregone interest on nonaccrual loans

2005

Fixed
Rate

$2,040,799
588,128
624,685
51,666
422,799
$3,728,077

Variable
Rate

$3,247,463
1,396,404
537,299
—
205,573
$5,386,739

Non-
accrual

$11,673
5,370
7,347
—
772
$25,162

Total

$5,299,935
1,989,902
1,169,331
51,666
629,144
$9,139,978
8,708
$
2,515
$

2004

Fixed
Rate

Variable
Rate

Non-
accrual

$1,580,239 $2,962,402 $33,195
10,144
8,612
—
709
$2,993,826 $4,882,481 $52,660

1,234,676
502,732
—
182,671

376,290
687,574
40,262
309,461

Total

$4,575,836
1,621,110
1,198,918
40,262
492,841
$7,928,967
7,649
$
4,617
$

Approximately 57% of the commercial and consumer loan portfolios

related to these swaps was included in accumulated other compre-

and  approximately  72%  of  the  residential  mortgage  loan  portfolio

hensive income and expected to be reclassified into earnings based

(excluding loans held for sale) are loans to businesses and individuals

on the current interest rate environment.

in Oklahoma. This geographic concentration subjects the loan port-

folio to the general economic conditions within this area.

Credit Commitments

Within  the  commercial  loan  classification,  loans  to  energy-related

businesses totaled $1.4 billion or 15% of total loans as of December 31,

2005. Other notable segments include wholesale/retail, $793 million;

healthcare,  $520  million;  manufacturing,  $515 million;  agriculture,

$292 million, which includes $228 million of loans to the cattle indus-

try; and services, $1.4 billion. Approximately $1.1 billion of the services

category is made up of loans with outstanding balances of less than

$10 million.

Approximately 33% of commercial real estate loans are secured by

properties located in Oklahoma, primarily in the Tulsa and Oklahoma

City  metropolitan  areas.  An  additional  30%  of  commercial  real

estate  loans  are  secured  by  property  located  in  Texas.  The  major

Commitments to extend credit are agreements to lend to a customer

as long as there is no violation of conditions established in the con-

tract.  Commitments  generally  have  fixed  expiration  dates  or  other

termination  clauses  and  may  require  payment  of  a  fee.  At  Decem-

ber 31, 2005, outstanding commitments totaled $4.3 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.

components of these properties are multifamily residences, $205 mil-

Standby  letters  of  credit  are  conditional  commitments  issued  to

lion; construction and land development, $638 million; retail facilities,

guarantee the performance of a customer to a third party. Because

$305 million; and office buildings, $499 million.

During 2004, interest rate swaps with $100 million notional amounts

were  designated  cash  flow  hedges  of  prime-based  loans  and  they

remained outstanding through 2005. The objective of the hedge is

to  protect  against  the  variability  of  interest  cash  flows  on  the  first

$100  million  of  then  existing  prime-based  loans.  The  Company

receives settlements based on a fixed rate of 5.93% and pays settle-

ments based on the U.S. prime rate. Amounts due are settled monthly.

As  of  December  31,  2005,  a  net  loss  of  approximately  $2.1  million

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 creditworthi-

ness of the customer. Additionally, BOK Financial uses the same eval-

uation 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, 2005, outstanding

standby letters of credit totaled $559 million.

54

 Financials_v5.qxd  2/24/06  3:46 PM  Page 55

Notes to Consolidated Financial Statements

Commercial  letters  of  credit  are  used  to  facilitate  customer  trade

transactions with the drafts being drawn when the underlying trans-

(6) Premises and Equipment

action  is  consummated.  At  December 31,  2005,  outstanding  com-

Premises and equipment at December 31 are summarized as follows

mercial letters of credit totaled $6 million.

(in thousands): 

Reserves for Credit Losses

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

thousands):

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

2005
$108,618
10,401
(25,758)
9,544
1,071
$103,876

2004
$114,784
15,792
(29,685)
7,727
—
$108,618

2003
$103,851
34,000
(31,475)
6,125
2,283
$114,784

The activity in the reserve for off-balance sheet credit losses is sum-

marized as follows (in thousands):

Beginning balance
Provision for off-balance
sheet credit losses

Additions due to acquisitions

2005
$ 18,502

2004
$ 13,855

2003
$ 12,219

2,040
32

4,647
—

1,636
—

Ending balance

$ 20,574

$ 18,502

$ 13,855

Provision for credit losses

$ 12,441

$ 20,439

$ 35,636

Impaired Loans

Investments in loans considered to be impaired under FAS 114 were

as follows (in thousands):

2005

December 31,
2004

2003

Land
Buildings and improvements
Software
Furniture and equipment
Subtotal
Less accumulated depreciation
Total

December 31,

2005

2004

$ 43,875
143,051
31,250
107,675
325,851
146,224
$ 179,627

$ 40,479
135,932
27,515
100,447
304,373
131,730
$172,643

Depreciation expense of premises and equipment was $24.0 million,

$23.4  million  and  $22.4  million  for  the  years  ended  December  31,

2005, 2004 and 2003, respectively.

(7) Intangible Assets

The following table presents the original cost and accumulated amor-

tization of intangible assets (in thousands):

Core deposit premiums
Less accumulated amortization
Net core deposit premiums

Other identifiable intangible assets
Less accumulated amortization
Net other identifiable intangible

assets

Goodwill
Less accumulated amortization
Net goodwill
Total intangible assets, net

December 31,

2005

$ 90,637
77,111
13,526

17,866
5,238

12,628

290,003
53,135
236,868
$263,022

2004

$ 86,257
71,158
15,099

11,526
4,249

7,277

273,353
53,135
220,218
$242,594

$ 19,857

$ 45,424

$ 46,990

Expected  amortization  expense  for  intangible  assets  that  will  con-

tinue  to  be  amortized  under  FAS  142,  as  amended  by  FAS  147,  (in

5,686
2,632

14,881
6,994

18,947
6,377

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

14,171

30,543

28,043

Average recorded investment

in impaired loans

32,722

46,386

47,415

Interest  income  recognized  on  impaired  loans  during  2005,  2004

and 2003 was not significant.

Core
Deposit
Premiums

$ 4,563
3,777
2,314
1,871
846
155
$13,526

Other
Identifiable
Intangible Assets

$

769
763
780
1,137
1,163
8,016
$12,628

Total

$ 5,332
4,540
3,094
3,008
2,009
8,171
$26,154

2006
2007
2008
2009
2010
Thereafter

55

 Financials_v5.qxd  2/24/06  3:46 PM  Page 56

Notes to Consolidated Financial Statements

The net amortized cost of intangible assets at December 31, 2005 is

are generally outstanding for 60 to 90 days and are subject to both

assigned to reporting units as follows (in thousands):

credit and interest rate risk. Credit risk is managed through under-

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

Goodwill:

Bank of Oklahoma
Bank of Texas
Bank of Albuquerque
Colorado State Bank and Trust
Bank of Arizona

$ 4,143
5,781
3,602
$ 13,526

$ 6,341
6,287
$ 12,628

$ 8,173
154,741
15,273
42,031
16,650
$236,868

writing  policies  and  procedures,  including  collateral  requirements,

which are generally accepted by the secondary loan markets. Expo-

sure to interest rate fluctuations is partially hedged 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, 2005, the unrealized loss

on  forward  sales  of  mortgage-backed  securities  and  forward  sales

contracts used to hedge the mortgage pipeline was approximately

$217 thousand. Gains on mortgage loans sold, including capitalized

mortgage servicing rights, totaled $16.0 million in 2005, $10.4 million

in 2004 and $30.5 million in 2003.

At December 31, 2005, BOK Financial owned the rights to service

53,897  mortgage  loans  with  outstanding  principal  balances  of

$4.5 billion,  including  $462 million  serviced  for  affiliates,  and  held

related  funds  of  $56  million  for  investors  and  borrowers.  The

During 2005, the Company acquired the naming rights to the BOk

weighted average interest rate and remaining term was 6.13% and

Center, a new arena to be built in Tulsa, Oklahoma, and other related

275 months, respectively. Mortgage loans sold with recourse totaled

intangible  rights.  Under  an  agreement  with  the  City  of  Tulsa,  the

$248 million  at  December 31,  2005.  At  December 31,  2004,  BOK

Company will pay $11.0 million over 20 years. One or more install-

Financial  owned  the  rights  to  service  56,062  mortgage  loans  with

ment payments may be accelerated by paying a discounted amount

outstanding principal balances of $4.5 billion, including $655 million

based  on  the  average  yield  of  20-year  U.S.  Treasury  bonds.  The

serviced  for  affiliates,  and  held  related  funds  of  $67  million  for

Company recognized a $6.3 million intangible asset and an interest-

investors  and  borrowers.  The  weighted  average  interest  rate  and

bearing  liability  from  this  transaction.  The  intangible  asset  will  be

remaining term was 6.27% and 270 months, respectively. Mortgage

amortized over the life of the agreement.

loans sold with recourse totaled $32 million at December 31, 2004. 

(8) Mortgage Banking Activities 

BOK Financial engages in mortgage banking activities through the

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 serv-

icing rights. See Note 1 for specific accounting policies for mortgage

BOk Mortgage Division of BOk. Residential mortgage loans held for

servicing rights.

sale totaled $52 million and $40 million, and outstanding mortgage

loan commitments totaled $233 million and $189 million at Decem-

ber 31, 2005 and 2004, respectively. Mortgage loan commitments

Activity in capitalized mortgage servicing rights and related valua-

tion  allowance  during  2003,  2004  and  2005  are  as  follows  (in

thousands):

56

 Financials_v5.qxd  2/24/06  3:46 PM  Page 57

Notes to Consolidated Financial Statements

Balance at December 31, 2002

Additions, net
Amortization expense
Recovery of  impairment

Balance at December 31, 2003

Additions, net
Amortization expense
Write-off
Recovery of impairment

Balance at December 31, 2004

Additions, net
Amortization expense
Write-off
Recovery of impairment

$
Balance at December 31, 2005
Estimated fair value of mortgage servicing rights at:

December 31, 20031
December 31, 20041
December 31, 20051,3

$ 12,625
$ 9,338
8,489
$

Capitalized Mortgage Servicing Rights

Purchased
37,223
(3)
(14,840)
—
22,380
—
(4,695)
(6,291)
—
$ 11,394
—
(2,788)
—
—
8,606

Originated
49,849
23,922
(19,315)
—
54,456
11,365
(10,753)
(7,012)
—
$ 48,056
17,402
(10,110)
(2,443)
—
$ 52,905 

$ 36,564
$ 36,985
$ 46,158

Total
87,072
23,919
(34,155)
—
76,836
11,365
(15,448)
(13,303)
—
$ 59,450
17,402
(12,898)
(2,443)
—
$ 61,511 

$ 49,189
$ 46,323
$ 54,647

Valuation
Allowance
(54,918)
—
—
22,923
(31,995)
—
—
16,656
1,567
$ (13,772)
—
—
2,443
3,915
$ (7,414) 

Hedging
Loss2
5,134
—
(1,425)
—
3,709
—
(356)
(3,353)
—
$  —
—
—
—
—
$ —

Net
37,288
23,919
(35,580)
22,923
48,550
11,365
(15,804)
—
1,567
$ 45,678
17,402
(12,898)
—
3,915
$ 54,097

$ 49,189
$ 46,323
$ 54,647

1 Excludes approximately $1.0 million, $1.1 million and $1.4 million at December 31, 2005, 2004 and 2003, respectively, of loan servicing rights on

mortgage loans originated prior to the adoption of FAS 122.

2 Hedging loss represents the deferred loss on a derivatives-based hedging program prior to the adoption of FAS 133.
3 Fair value of mortgage servicing rights is based on numerous assumptions primarily related to mortgage interest rates. At December 31, 2005, management
estimates that a 50 basis point increase in mortgage interest rates will increase the fair value of mortgage servicing rights by $3.1 million and a 50 basis
point decrease in mortgage interest rates will reduce the fair value of mortgage servicing rights by $4.8 million.

Fair value is determined by discounting the projected net cash flows.

Loan  servicing  costs —  $35  to  $46  annually  per  loan  based  upon

Significant assumptions are:

loan type.

Discount rate — Indexed to a risk-free rate commensurate with the

Escrow earnings rate — Indexed to rates paid on deposit accounts

average life of the servicing portfolio plus a market premium. The dis-

with a comparable average life. The escrow earnings rate at Decem-

count rate at December 31, 2005 was 10.85%.

ber 31, 2005 was 5.21%.

Prepayment  rate —  Annual  prepayment  estimates  ranging  from

Stratification  of  the  mortgage  loan-servicing  portfolio,  outstanding

10.42% to 20.38% based upon loan interest rate, original term and

principal of loans serviced, and related hedging information by inter-

loan type.

est rate at December 31, 2005 follows (in thousands):

Cost less accumulated amortization
Fair value
Impairment2
Outstanding principal of loans serviced1

< 5.51%
$ 14,506
$ 13,366
$ 1,267
$998,200

5.51% - 6.50%
29,294
$
25,337
$
$
3,959
$1,864,300

6.51% - 7.50%
$ 13,715
$ 11,958
$ 1,759
$835,500

=> 7.51%
$ 3,996
$ 3,986
$
429
$267,000

Total
61,511
$
54,647
$
$
7,414
$3,965,000

1 Excludes outstanding principal of $462 million for loans serviced for affiliates and $66 million of mortgage loans for which there are no capitalized mort-

gage servicing rights.

2 Impairment is determined by both an interest rate and loan type stratification.

57

 Financials_v5.qxd  2/24/06  3:46 PM  Page 58

Notes to Consolidated Financial Statements

(9) Deposits

Time deposit maturities are as follows: 2006 — $1.9 billion, 2007 —

$1.0 billion, 2008 — $232 million, 2009 — $303 million, 2010 — $298

Interest expense on deposits is summarized as follows (in thousands):

million, and $374 million thereafter.

Transaction deposits
Savings
Time:

Certificates of deposits 
under $100,000
Certificates of deposits 
$100,000 and over

Other time deposits

Total time
Total

2005
$ 72,721
1,106

2004
$ 35,517
975

2003
$ 31,346
944

50,129

41,978

39,098

73,248
13,196
136,573
$210,400

53,918
12,045
107,941
$144,433

48,181
12,360
99,639
$131,929

At December 31, 2005, the Company had $442 million in fixed rate,

brokered certificates of deposits. The weighted-average interest rate

paid  on  these  certificates  is  3.64%.  Interest  rate  swaps  have  been

designated as hedges of each of these certificates. The purpose of

these swaps is to hedge against changes in fair value due to changes

in interest rates by modifying the certificates from fixed rate to float-

ing rates based on changes in LIBOR. We receive a weighted aver-

age fixed rate of 3.81% on these swaps and currently pay a floating

rate of 4.39%. 

The  aggregate  amounts  of  time  deposits  in  denominations  of

Interest  expense  on  time  deposits  during  2005  and  2004  was

$100,000 or more at December 31, 2005 and 2004 were $2.5 bil-

reduced by the net accrued settlement from interest rate swaps of

lion and $2.2 billion, respectively.

$700 thousand and $7.9 million, respectively. 

(10) Other Borrowings

Information relating to other borrowings is summarized as follows (dollars in thousands):

2005

December 31,
2004

2003

Parent Company:

Balance

Rate

Maximum
Outstanding
At Any
Month End

Balance

Rate

Maximum
Outstanding
At Any
Month End

Balance

Rate

Maximum
Outstanding
At Any
Month End

Revolving, unsecured line

$

—

—% $

95,000 $

95,000

2.91%

$

95,000

$

95,000

1.75%

$

95,000

Subsidiary Banks:

Funds purchased and

repurchase agreements
Federal Home Loan Bank

advances

Subordinated debenture
Other

Total subsidiary banks

Total other borrowings

1,337,911

4.53

2,291,509

1,555,507

2.18

1,900,810

1,609,668

1.37

1,904,269

1,020,871
295,964
33,427
2,688,173
$2,688,173

4.26
6.30
3.13
4.61
4.61

1,031,821
297,980
33,427

894,354
151,594
25,646
2,627,101
$2,722,101

2.31
5.18
0.98
2.39
2.41

899,350
154,230
28,748

899,426
154,332
22,224
2,685,650
$2,780,650

1.21
6.02
1.58
1.58
1.74

974,729
155,345
29,116

Aggregate annual principal repayments of long-term debt at Decem-

ber 31, 2005 are as follows (in thousands):

Parent
Company

$

$

—
—
—
—
—
—
—

Subsidiary
Banks

$2,364,738
152,779
1,824
8,524
475
159,833
$2,688,173

2006
2007
2008
2009
2010
Thereafter
Total

58

 Financials_v5.qxd  2/24/06  3:46 PM  Page 59

Notes to Consolidated Financial Statements

Funds purchased generally mature within one to ninety days from the transaction date. At December 31, 2005, securities sold under agree-

ments to repurchase totaled $661 million with related accrued interest payable of $75 thousand. 

Additional information relating to repurchase agreements at December 31, 2005 is as follows (dollars in thousands):

Security Sold/Maturity
Overnight U.S. Agency Securities

Amortized
Cost
$806,679

Market
Value
$781,589

Repurchase
Liability1
$661,192

Average
Rate
4.14%

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

In  1997,  BOk  issued  a  $150  million  7.125%  fixed  rate  subordinated

purposes.  In  accordance  with  policies  of  the  Federal  Home  Loan

debenture  that  matures  in  2007.  During  2004,  a  $150  million

Bank, BOK Financial has granted a blanket pledge of eligible assets

notional  amount  interest  rate  swap  was  designated  as  a  hedge  of

(generally unencumbered U.S. Treasury and mortgage-backed secu-

changes  in  fair  value  of  the  subordinated  debt  due  to  changes  in

rities,  1-4  family  loans  and  multifamily  loans)  as  collateral  for  these

interest rates. The Company receives a fixed rate of 3.165% and pays

advances. The Federal Home Loan Bank has issued letters of credit

a variable rate based on 1-month LIBOR, or 4.39% at December 31,

totaling $308 million to secure BOK Financial’s obligations to depos-

2005.  Semi-annual  swap  settlements  coincide  with  interest  pay-

itors of public funds. The unused credit available to BOK Financial at

ments on the subordinated debenture. The interest rate swap termi-

December 31, 2005 pursuant to the Federal Home Loan Bank’s col-

nates  on  August  15,  2007,  the  maturity  date  of  the  subordinated

lateral policies is $314 million.

debenture. 

BOK Financial has a $100 million unsecured revolving line of credit

with certain commercial banks that expires in December 2010. There

was  no  outstanding  principal  balance  of  this  credit  agreement  at

December 31, 2005. Interest is based upon a base rate or LIBOR plus

a defined margin that is determined by the Company’s credit rating.

This margin ranges from 0.375% to 1.125%. The margin currently appli-

cable  to  borrowings  against  this  line  is  0.500%.  The  base  rate  is

(11) Federal and State Income Taxes

Deferred income taxes reflect the net tax effects of temporary differ-

ences between the carrying amounts of assets and liabilities for finan-

cial  reporting  purposes  and  the  amounts  used  for  income  tax  pur-

poses.  Significant  components  of  deferred  tax  assets  and  liabilities

defined as the greater of the daily federal funds rate plus 0.5% or the

are as follows (in thousands):

SunTrust  Bank  prime  rate.  Interest  is  generally  paid  monthly.  Facility

fees are paid quarterly on the unused portion of the commitment at

rates that range from 0.100% to 0.250% based on the Company’s

Deferred tax liabilities:

December 31,

2005

2004

credit  rating.  This  credit  agreement  includes  certain  restrictive

covenants that limit the Company’s ability to borrow additional funds,

to  make  investments  and  to  pay  cash  dividends  on  common  stock.

These covenants also require BOK Financial and subsidiary banks to

maintain minimum capital levels. BOK Financial met all of the restric-

tive covenants at December 31, 2005.

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  5.43%.  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.

Pension contributions in excess

of book expense
Valuation adjustments
Mortgage servicing rights
Lease financing
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
Other

Total deferred tax assets

Deferred tax assets in excess of

deferred tax liabilities

$ 9,900
27,600
22,000
15,500
3,300
78,300

40,700
4,700
48,000
7,700
26,000
6,900
12,500
146,500

$ 9,400
29,300
20,200
15,800
4,500
79,200

6,400
3,900
48,500
13,200
22,400
8,300
12,100
114,800

$ 68,200

$ 35,600

59

 Financials_v5.qxd  2/24/06  3:46 PM  Page 60

Notes to Consolidated Financial Statements

The significant components of the provision for income taxes attrib-

Due to the favorable resolution of certain state tax issues for the tax

utable to continuing operations for BOK Financial are shown below

period  ended  December  31,  2000,  BOK  Financial  reduced  its  tax

(in thousands):

accrual  by  $3  million,  which  was  credited  against  current  federal

income tax expense in 2004.

Current:

Federal
State
Total current

Deferred:
Federal
State
Total deferred

Total income tax

Years ended December 31,
2004

2005

2003

$105,403
7,341
112,744

415
76
491
$113,235

$ 84,514
6,743
91,257

$ 77,015
5,551
82,566

161
29
190
$ 91,447

5,369
979
6,348
$ 88,914

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):

Years ended December 31,
2004

2003

2005

Percent of pretax income:
Federal statutory rate
Tax-exempt revenue
Effect of state income taxes, 
net of federal benefit
Intangible amortization
Charitable contribution
Utilization of tax credits
Reduction of tax accrual
Other, net 
Total

35%
(1)

1
—
—
—
—
1
36%

35%
(1)

2
—
(1)
—
(1)
—
34%

35%
(1)

2
—
—
—
—
—
36%

Years ended December 31,
2004

2003

2005

Amount:

Federal statutory tax
Tax exempt revenue
Effect of state income taxes,
net of federal benefit
Intangible amortization
Charitable contribution
Utilization of tax credits
Reduction of tax accrual
Other, net
Total

$110,158
(2,592)

$ 94,671
(2,705)

$ 86,538
(2,815)

4,729
216
—
(929)
—
1,653
$113,235

4,220
397
(2,446)
(784)
(3,000)
1,094
$ 91,447

4,110
763
—
(794)
—
1,112
$ 88,914

60

 Financials_v5.qxd  2/24/06  3:46 PM  Page 61

Notes to Consolidated Financial Statements

(12) Employee Benefits

BOK Financial sponsors a defined benefit cash balance Pension Plan for all employees who satisfy certain age and service requirements. The

following table presents information regarding this plan (dollars in thousands):

December 31,

Change in projected benefit obligation:

Projected benefit obligation at beginning of year
Service cost
Interest cost
Actuarial 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

Reconciliation of prepaid (accrued) and total

amount recognized:
Benefit obligation
Fair value of assets
Funded status of the plan
Unrecognized net loss
Unrecognized prior service cost

Prepaid pension costs

Components of net periodic benefit costs:

Service cost
Interest cost
Expected return on plan assets
Amortization of unrecognized amounts:

Net loss
Prior service cost
Net periodic pension cost

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

2005

$ 44,688
6,766
2,488
6,599
(2,884)
$ 57,657

$ 52,246
3,298
6,329
(2,884)
$ 58,989

$(57,657)
58,989
1,332
20,555
—
$ 21,887

$ 6,766
2,488
(4,122)

1,094
60
$ 6,286

5.50%
8.00%
5.25%

2004

$ 37,773
6,096
2,314
2,262
(3,757)
$ 44,688

$ 43,275
4,002
8,726
(3,757)
$ 52,246

$ (44,688)
52,246
7,558
14,226
443
$ 22,227

$ 6,096
2,314
(3,639)

1,060
60
$ 5,891

5.75%
8.00%
5.25%

As of December 31, 2005, expected future benefit payments related to the Pension Plan were as follows (in thousands):

2006
2007
2008
2009
2010
2011 through 2015

$ 2,734
3,307
3,038
3,310
3,297
18,272
$33,958

61

 Financials_v5.qxd  2/24/06  3:46 PM  Page 62

Notes to Consolidated Financial Statements

Assets of the Pension Plan consist primarily of shares in the American

Accruals for future service under the pension plan will be curtailed.

Performance Balanced Fund. The stated objective of this fund is to

Interest will continue to accrue on employees’ account balances at

provide an attractive total return through a broadly diversified mix of

5.25%. A charge of $384 thousand was recognized in 2005 for the

equities and bonds. The typical portfolio mix is approximately 60%

curtailment of the pension plan.

equities and 40% bonds. The inception-to-date return on the fund,

which  is  used  as  an  indicator  when  setting  the  expected  return  on

plan  assets,  was  8.40%.  The  maximum  allowed  and  minimum

required  Pension  Plan  contributions  for  2005  were  $7.5  million

and $0, respectively. Amounts contributed to the Pension Plan during

2005 included $5.0 million attributable to the current year and $1.3

million attributable to 2004.

The  combined  effects  of  these  modifications  are  not  expected  to

have  a  significant  impact  on  future  earnings  or  liquidity.  The  Com-

pany will continue to have a funding obligation to the pension plan

and will continue to recognize pension expense based on plan asset

performance,  discount  rates  and  other  factors.  At  December  31,

2005,  prepaid  pension  expense  totaled  $21.9  million,  consisting  of

$1.3 million of net plan assets in excess of liabilities and $20.6 million

Employee  contributions  to  the  Thrift  Plans  are  matched  by  BOK

of unrecognized actuarial losses. These losses will be recognized in

Financial up to 5% of base compensation, based upon years of serv-

future  years.  These  unrecognized  losses  may  also  be  increased  or

ice.  Participants  may  direct  the  investments  of  their  accounts  in  a

reduced by plan asset performance and discount rate changes.

variety  of  options,  including  a  BOK  Financial  Common  Stock  fund.

Employer  contributions  vest  over  five  years.  Expenses  incurred  by

BOK  Financial  for  the  Thrift  Plans  totaled  $4.6  million,  $3.9  million

and $3.6 million for 2005, 2004 and 2003, respectively.

BOK  Financial  offers  numerous  incentive  compensation  plans  that

are aligned with the Company’s growth strategy. Cash settlements

paid under these plans may be based on defined formulas, other per-

formance  criteria  or  discretionary.  Incentive  compensation  is

BOK  Financial  also  sponsors  a  defined  benefit  post-retirement

designed  to  motivate  and  reinforce  sales  and  customer  service

employee  medical  plan,  which  pays  50  percent  of  annual  medical

behavior in all markets. Earnings were charged $48.7 million in 2005,

insurance  premiums  for  retirees  who  meet  certain  age  and  service

$46.4 million in 2004 and $46.2 million in 2003 for incentive com-

requirements. Assets of the retiree medical plan consist primarily of

pensation plans.

shares in a cash management fund. Eligibility for the post-retirement

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 obli-

gation recognized under the plan was $2.2 million at December 31,

2005. A 1% change in medical expense trends would not significantly

affect the net obligation or cost of this plan.

During  the  fourth  quarter  of  2005,  modifications  to  both  the  thrift

and pension plans were approved. These modifications will become

effective April 1, 2006 and consist primarily of enhanced Company

contributions to the thrift plans and curtailed benefit accruals to the

pension plan.

(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 granted to other offi-

cers and employees is approved by the independent compensation

committee upon recommendation of the Chairman of the Board and

the Chief Executive Officer.

Employee  contributions  to  the  thrift  plans  eligible  for  Company

matching will increase from 5% of base compensation to 6% of base

compensation,  as  defined  in  the  plans.  The  Company-provided

matching contribution rates will 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  will  be  made  for  employees

whose annual base compensation is less than $30,000.

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.

62

 Financials_v5.qxd  2/24/06  3:46 PM  Page 63

Notes to Consolidated Financial Statements

The Chief Executive Officer and other senior executives participate in

Compensation  expense  for  stock  options  is  generally  recognized

an Executive Incentive Plan.  The number of options and non-vested

based on the fair value of options granted over the options’ vesting

shares may increase or decrease based upon the Company’s growth

period. No compensation expense is recognized for options that are

in  earnings  per  share  over  a  three-year  period  compared  to  the

forfeited before vesting. The fair value of options was determined as

median growth in earnings per share for a designated peer group of

of the date of grant using a Black-Scholes option pricing model with

financial institutions and other individual performance factors.

the following weighted average assumptions: 

The  following  table  presents  options  outstanding  during  2003,

2004 and 2005 under these plans:

Options outstanding at

December 31, 2002

Options awarded
Options exercised
Options forfeited
Options expired
Options outstanding at

December 31, 2003

Options awarded
Options exercised
Options forfeited
Options expired
Options outstanding at

December 31, 2004

Options awarded
Options exercised
Options forfeited
Options expired
Options outstanding at
December 31, 2005

Options vested at

December 31, 2005

Weighted-
Average
Exercise
Price

19.66
32.60
16.74
23.07
18.73

23.58
40.37
19.65
27.15
14.94

$28.53
47.02
24.10
33.67
30.11

$ 34.03

$ 24.12

Number

3,233,570
889,343
(672,457)
(61,941)
(53)

3,388,462
857,951
(693,199)
(212,844)
(2,322)

3,338,048
900,126
(668,990)
(82,505)
(616)

3,486,063

1,004,508

Average risk-free interest rate
Dividend yield
Volatility factors
Weighted-average
expected life

Weighted-average fair value

2005

3.69%
0.90%
.161

2004

3.27%
None
.168

2003

2.57%
None
.178

4.9 years
$10.01

4.9 years
$ 8.53

7 years
$ 6.66

Compensation cost of stock options granted that may be recognized

as  compensation  expense  in  future  years  totaled  $10.5  million  at

December 31, 2005. Subject to adjustments for forfeitures, we expect

to recognize compensation expense for current outstanding options

of  $4.5  million  in  2006,  $2.9  million  in  2007,  $1.5  million  in  2008,

$930 thousand in 2009 and $661 thousand thereafter. Stock option

expense for the years ended December 31, 2005, 2004 and 2003

was $5.5 million, $3.7 million and $3.6 million, respectively.

BOK Financial also issues non-vested common shares under the var-

ious stock-based compensation plans. At December 31, 2005, a total

of 57,706 non-vested common shares have been awarded, including

15,028  awarded  in  2005.  The  weighted  average  grant  date  fair

value of non-vested shares awarded in 2005 was $46.76 per share.

Unrecognized compensation cost of non-vested shares totaled $904

thousand  at  December  31,  2005.  Subject  to  adjustment  for  forfei-

tures, we expect to recognize compensation expense of $250 thou-

The following table summarizes information concerning currently out-

sand in 2006 and 2007, $246 thousand in 2008 and $158 thou-

standing and vested stock options:

sand thereafter.

Options Outstanding

Options Vested

BOK Financial permits certain executive officers to defer recognition

Range of
Exercise
Prices
$ 9.69
16.17
17.37 — 19.02
28.27 — 30.87
37.43 — 37.65
37.74
45.43 — 49.09
45.15 — 47.34
44.00 — 47.99

Weighted Weighted
Average
Average
Exercise
Remaining
Contractual
Price
Outstanding Life (years)

Number

20,100
80,911
694,430
914,335
92,490
577,442
218,204
674,467
213,684

0.83
1.42
2.61
3.80
0.12
5.00
1.00
6.00
2.00

$ 9.69
16.17
18.00
29.74
37.53
37.74
47.79
47.32
46.04

Weighted
Average
Exercise
Number
Price
Vested
20,100 $ 9.69
16.17
80,911
18.18
460,356
29.34
279,537
37.53
92,490
37.74
71,114
—
—
—
—
—
—

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 recog-

nized as a liability award rather than as an equity award. Compen-

sation  expense  is  based  on  the  fair  value  of  the  award  recognized

over the vesting period. At December 31, 2005, the recorded obliga-

tion for liability awards was $4.0 million. Compensation expense for

liability awards was a credit of $632 thousand in 2005 and expense

of  $7.6  million  in  2004  and  $2.2  million  in  2003.  The  reduction  in

63

 Financials_v5.qxd  2/24/06  3:47 PM  Page 64

Notes to Consolidated Financial Statements

2005 expense resulted from the termination of future deferral rights

of 1940. BOk serves as custodian for AP Funds. Effective July 1, 2004,

for  all  executive  officers  except  the  President  and  Chief  Executive

BOKIA began serving as the AP Funds administrator. BOK Financial

Officer and a decrease in the period end market value of BOK Finan-

offers the AP Funds, products to customers and employees, in the ordi-

cial common stock.

During January 2006, BOK Financial awarded the following stock-

based compensation:

Equity awards:
Stock options
Nonvested stock
Total Equity awards

Liability awards:
Stock options
Nonvested stock
Total Liability awards
Total stock-based awards

Number

632,776
20,495
653,271

52,246
12,803
65,049
718,320

Exercise
Price

Fair Value /
Award

$47.05
—

$ 9.86
47.05

47.05
—

9.86
47.05

The aggregate compensation cost of these awards totaled approxi-

mately $8.5 million.  This cost will be recognized over the vesting peri-

ods,  subject  to  adjustments  for  forfeitures  and  changes  in  the  fair

value of liability awards.

(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, 2005 or 2004.

Activity in loans to related parties is summarized as follows (in thou-

sands):

Beginning balance
Advances
Payments
Adjustments1
Ending balance

2005
$104,845
691,848
(678,098)
11,769
$130,364

2004
$119,873
434,242
(442,834)
(6,436)
$104,845

1 Adjustments generally consist of changes in status as a related party.

BOK Investment Advisors, Inc. (“BOKIA”), a wholly-owned subsidiary of

BOk,  serves  as  investment  advisor  to  American  Performance  Funds

(“AP Funds”). AP Funds is a diversified, open-ended, investment com-

pany established in 1987 as a business trust under the Investment Act

nary course of business, through its brokerage and trading, employee

benefit plan and trust services as well as to the general public.

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 fiduci-

ary/trust services. The Company engages in transactions with related

parties in the ordinary course of business in compliance with applica-

ble  regulations.  There  are  no  other  material  related  party  transac-

tions that require disclosure.

(15) Commitments and
Contingent Liabilities

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.

BOk  is  obligated  under  a  long-term  lease  for  its  bank  premises

located in downtown Tulsa. 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 $3.3 million. BOk subleases portions of its

space  for  annual  rents  of  $213  thousand  in  years  2006  through

2009  and  $195  thousand  in  2010.  Net  rent  expense  on  this  lease

was $2.9 million in years 2005, 2004 and 2003. Total rent expense

for BOK Financial was $15.3 million in 2005, $14.3 million in 2004

and $13.0 million in 2003.

At  December  31,  2005,  future  minimum  lease  payments  for  equip-

ment and premises under operating leases were as follows: $14.9 mil-

lion in 2006, $13.6 million in 2007, $12.5 million in 2008, $11.5 million

in 2009, $10.6 million in 2010, and a total of $94.4 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 cer-

tain minimum average cash balances. These balances were approxi-

mately  $316  million  and  $334  million  at  December  31,  2005  and

2004, respectively.

64

 Financials_v5.qxd  2/24/06  3:47 PM  Page 65

Notes to Consolidated Financial Statements

BOSC, Inc., a wholly-owned subsidiary of BOK Financial, is an intro-

Common Stock

ducing broker to Pershing, LLC for retail equity investment transac-

tions. 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, 2005.

BOK Private Equity, LLC, indirectly a wholly-owned subsidiary of BOK

Financial, is the general partner in BOK Private Equity Fund, LP (“the

Fund”).  The  Fund  provides  alternative  investment  opportunities  to

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  divi-

dends  when  and  as  declared.  No  common  stock  dividends  can  be

paid  unless  all  accrued  dividends  on  the  Series  A  Preferred  Stock

have  been  paid.  Additionally,  regulations  restrict  the  ability  of

national banks and bank holding companies to pay dividends, and

BOK Financial’s credit agreement restricts the payment of dividends

certain customers, some of which are related parties, through limited

by the holding company.

partnerships.  The  Fund  generally  invests  in  distressed  assets,  asset

buy-out or venture capital limited partnerships or limited liability com-

panies. The general partner has contingent obligations through the

Fund  to  make  additional  investments  totaling  $16.4  million  as  of

December 31, 2005.

(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. Divi-

dends 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. Dur-

ing the second quarter of 2005, holders of the Company’s convert-

ible preferred stock exercised their conversion rights. All of the Series

A Preferred Stock was converted into 6,920,666 common shares. In

2004 and 2003, cash dividends declared on preferred stock totaled

$1.9  million  and  $750  thousand,  respectively.  During  2003,  23,214

shares  of  BOK  Financial  common  stock  were  issued  in  payment  of

dividends on the Series A Preferred Stock in lieu of cash by mutual

agreement  of  BOK  Financial  and  the  holders  of  the  Series  A  Pre-

ferred  Stock.  These  shares  were  valued  at  $750,000  based  on

average market price, as defined, for a 65 business day period pre-

ceding declaration. George B. Kaiser owned substantially all Series A

Preferred Stock.

During the second quarter of 2005, the Board of Directors approved

the  Company’s  first  quarterly  cash  dividend  of  $0.10  per  common

share. The quarterly cash dividend replaced the annual dividend his-

torically  paid  in  shares  of  common  stock.  Cash  dividends  paid  on

common stock totaled $20 million. During 2004 and 2003, 3% div-

idends  payable  in  shares  of  BOK  Financial  common  stock  were

declared and paid. The shares issued were valued at $66 million and

$58 million, respectively, based on the average closing bid/ask prices

on the day preceding declaration. Per share data has been restated

to reflect these stock dividends. 

During 2002, BOK Financial agreed to a limited price guarantee on

a portion of the shares issued to purchase Bank of Tanglewood. The

fair value of this price guarantee, estimated to be $3 million based

upon the Black-Scholes option pricing model, was included in the pur-

chase price. Any holder of BOK Financial common shares issued in

this acquisition may annually make a claim for the excess of the guar-

anteed price and the actual sales price of any shares sold during a

60-day  period  after  each  of  the  first  five  anniversary  dates  after

October 25, 2002. The maximum annual number of shares subject to

this guarantee is 210,069. The guaranteed price for each anniversary

period is $40.10 for 2006 and $42.53 for 2007. The price guaran-

tee is nontransferable and noncumulative. BOK Financial may elect,

in its sole discretion, to issue additional shares of common stock to

satisfy any obligation under the price guarantee or to pay cash. The

maximum aggregate number of common shares that may be issued

to satisfy any price guarantee obligations is 10 million. If, as of any

benchmark date, BOK Financial has already issued 10 million shares,

BOK Financial is not obligated to make any further benchmark pay-

ments. BOK Financial’s ability to pay cash to satisfy any price guar-

antee obligations is limited by applicable bank holding company and

bank capital and dividend regulations. 

65

 Financials_v5.qxd  2/24/06  3:47 PM  Page 66

Notes to Consolidated Financial Statements

Subsidiary Banks 

Regulatory Capital 

The amounts of dividends that BOK Financial’s subsidiary banks can

BOK  Financial  and  its  banking  subsidiaries  are  subject  to  various

declare and the amounts of loans the subsidiary banks can extend to

capital requirements administered by the federal banking agencies.

affiliates are limited by various federal banking regulations and state

Failure  to  meet  minimum  capital  requirements  can  initiate  certain

corporate law. Generally, dividends declared during a calendar year

mandatory  and  additional  discretionary  actions  by  regulators  that

are limited to net profits, as defined, for the year plus retained profits

could  have  a  material  effect  on  BOK  Financial’s  operations.  These

for  the  preceding  two  years.  The  amounts  of  dividends  are  further

capital requirements include quantitative measures of assets, liabili-

restricted  by  minimum  capital  requirements.  Pursuant  to  the  most

ties and certain off-balance sheet items. The capital standards are

restrictive of the regulations at December 31, 2005, BOK Financial’s

also subject to qualitative judgments by the regulators about compo-

subsidiary banks could declare dividends up to $158 million without

nents, risk weightings and other factors.

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 Decem-

ber 31, 2005, the subsidiary banks could declare dividends of up to

$86 million under this policy. The subsidiary banks declared and paid

dividends  of  $151  million  in  2005  and  $66  million  in  2003.  During

2004, the subsidiary banks did not declare any dividends.

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%, respec-

tively. 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. As directed by the Federal Reserve Bank, Tier I capital excludes

$16 million, the combined value of common shares issued subject to the

Loans to a single affiliate may not exceed 10% and loans to all affili-

market value protection program and the value of the market value

ates  may  not  exceed  20%  of  unimpaired  capital  and  surplus,  as

guarantee. These values will be restored to Tier I capital as the market

defined. Additionally, loans to affiliates must be fully secured. As of

price guarantee expires. Total capital consists primarily of Tier I capital

December 31, 2005 and 2004, these loans had no outstanding bal-

plus preferred stock, subordinated debt and reserves for credit losses,

ance.  Total  loan  commitments  to  affiliates  at  December 31,  2005

subject  to  certain  limitations.  All  of  BOK  Financial’s  banking  sub-

were $128 million.

sidiaries 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

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

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

2005

Amount

Ratio

2004

Amount

Ratio

December 31,

12.10%
10.91
11.29
16.47
19.53
13.17
18.44

9.84%
8.41
10.34
15.31
18.27
12.09
17.35

8.30%
6.88
8.09
6.76
10.98
6.10
11.67

$ 1,625,832
1,162,091
275,507
95,134
18,372
40,249
18,194

$ 1,322,570
895,653
252,316
88,439
17,194
36,935
17,113

$ 1,322,570
895,653
252,316
88,439
17,194
36,935
17,113

66

$ 1,329,431
1,016,351
235,921
103,573
16,162
36,015
N/A

$ 1,140,654
867,335
211,641
95,443
15,164
32,891
N/A

$ 1,140,654
867,335
211,641
95,443
15,164
32,891
N/A

11.67%
11.13
11.41
15.34
20.37
14.50
N/A

10.02%
9.50
10.24
14.14
19.11
13.24
N/A

7.94%
7.29
7.62
6.69
8.97
8.73
N/A

 Financials_v5.qxd  2/24/06  3:47 PM  Page 67

Notes to Consolidated Financial Statements

Accumulated Other Comprehensive Income (Loss) 

of deferred income taxes. Accumulated losses on cash flow hedges of

Accumulated  other  comprehensive  income  (loss)  (“AOCI”)  includes

unrealized gains and losses on available for sale securities and accu-

mulated  gains  or  losses  on  effective  cash  flow  hedges,  including

hedges of anticipated transactions. Gains and losses in AOCI are net

prime-based loans of $2.1 million will be reclassified into income over

two years. 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.

Balance at December 31, 2002
Unrealized losses on securities
Tax benefit on unrealized losses
Reclassification adjustment for gains realized and included in net income
Reclassification adjustment for tax expense on realized gains

Balance at December 31, 2003
Unrealized losses on securities
Unrealized losses on cash flow hedges
Tax benefit on unrealized losses
Reclassification adjustment for losses realized and included in net income
Reclassification adjustment for tax benefit on realized losses

Balance at December 31, 2004
Unrealized losses on securities
Unrealized gains on cash flow hedges
Loss on rate lock hedge of subordinated debt issuance
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, 2005

(17) Earnings Per Share

Unrealized Gain (Loss)
On Available For Sale
Securities
$ 43,088
(46,884)
16,858
(7,188)
2,585
8,459
(31,806)
—
11,303
3,088
(1,044)
(10,000)
(92,551)
—
—
34,129
6,772
(2,432)
$ (64,082)

$

Accumulated Loss on
Effective Cash Flow
Hedges
—
—
—
—
—
—
—
(2,664)
1,039
—
—
(1,625)
—
684
(2,788)
(75)
123
(48)
(3,729)

$

Total
$ 43,088
(46,884)
16,858
(7,188)
2,585
8,459
(31,806)
(2,664)
12,342
3,088
(1,044)
(11,625)
(92,551)
684
(2,788)
34,054
6,895
(2,480)
$ (67,811)

The following table presents the computation of basic and diluted earnings per share (dollars in thousands except per share data):

Numerator:

Net income
Preferred stock dividends

Numerator for basic earnings per share — income 

available to common stockholders

Effect of dilutive securities:

Preferred stock dividends

Numerator for diluted earnings per share — income available

to common stockholders after assumed conversion

Denominator:

Denominator for basic earnings per share — weighted average shares
Effect of dilutive securities:

Employee stock compensation plans1
Convertible preferred stock
Tanglewood market value guarantee (see Note 16)

Dilutive potential common shares
Denominator for diluted earnings per share — adjusted 
weighted average shares and assumed conversions

Basic earnings per share
Diluted earnings per share
1 Excludes employee stock options with exercise prices greater than the 

current market price.

67

Years ended December 31,

2005

2004

2003

$

201,505
(375)

$

179,023
(1,875)

$

158,360
(1,500)

201,130

375

177,148

156,860

1,875

1,500

$

201,505

$

179,023

$

158,360

64,067,873

59,128,395

58,699,951

628,060
2,351,131
—
2,979,191

67,047,064
$3.14
$3.01

669,857
6,921,083
13,161
7,604,101

66,732,496
$3.00
$2.68

776,891
6,921,164
111,115
7,809,170

66,509,121
$2.67
$2.38

855,326

31,970

26,943

 Financials_v5.qxd  2/24/06  3:47 PM  Page 68

Notes to Consolidated Financial Statements

(18) Reportable Segments 

BOK Financial identifies reportable segments by type of service pro-

vided for the Mortgage Banking and the Wealth Management seg-

BOK  Financial  operates  five  principal  lines  of  business:  Oklahoma

ments and by type of customer for the Oklahoma Corporate Bank-

corporate banking, Oklahoma consumer banking, mortgage banking,

ing and Oklahoma Consumer Banking segments. Regional Banking

wealth management, and regional banking. Mortgage banking activ-

is identified by legal entity. Operating results are adjusted for inter-

ities include loan origination and servicing across all markets served

company loan participations and allocated service costs and man-

by the Company. Wealth management provides brokerage and trad-

agement fees.

ing, private financial services and investment advisory services in all

markets. It also provides fiduciary services in all markets except Col-

orado. Fiduciary services in Colorado are included in regional bank-

ing. Regional banking consists primarily of corporate and consumer

banking  activities  in  the  respective  local  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. 

The Oklahoma Corporate Banking segment provides loan and lease

financing and treasury and cash management services to businesses

throughout Oklahoma and certain relationships in surrounding states.

Oklahoma Corporate Banking also includes our TransFund unit, which

provides  ATM  and  merchant  deposit  services.  The  Oklahoma  Con-

sumer Banking segment provides a full line of deposit, loan and fee-

based services to customers throughout Oklahoma through four major

distribution channels: traditional branches, supermarket branches, the

24-hour  ExpressBank  call  center  and  the  Internet.  The  Mortgage

Banking segment consists of two operating sectors that originate a full

range  of  mortgage  products  from  federally  sponsored  programs  to

“jumbo loans” on higher priced homes in BOK Financial’s primary mar-

ket  areas.  The  Mortgage  Banking  segment  also  services  mortgage

loans acquired from throughout the United States. The Wealth Man-

agement segment provides a wide range of financial services, includ-

ing  trust  and  private  financial  services  and  brokerage  and  trading

services.  This  segment  includes  the  activities  of  BOSC,  Inc.,  a  regis-

tered broker/dealer. Trust and private financial services include sales of

institutional, investment and retirement products, loans and other serv-

ices to affluent individuals, businesses, not-for-profit organizations, and

governmental agencies. Trust services are primarily provided to clients

in Oklahoma, Texas and New Mexico. Regional banking includes Bank

of  Texas,  Bank  of  Albuquerque,  Bank  of  Arkansas,  Colorado  State

BOK Financial allocates resources and evaluates performance of its

lines of business after allocation of funds, certain indirect expenses,

taxes 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. Mar-

ket  rates  are  generally  based  on  the  applicable  LIBOR  or  interest

rate swap rates, adjusted for prepayment risk. This method of trans-

fer 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  90

days for certain rate-sensitive deposits to five years. The accounting

policies of the reportable segments generally follow those described

in the summary of significant accounting policies, except that interest

income  is  reported  on  a  fully  tax-equivalent  basis,  loan  losses  are

based  on  actual  net  amounts  charged  off  and  the  amortization  of

intangible assets is generally excluded. 

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 the 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. Additional capital is assigned to the

regional  banking  line  of  business  based  on  BOK  Financial’s  invest-

ment in those entities. 

Bank and Trust and Bank of Arizona. Each of these banks provides a

Substantially all revenue is from domestic customers. No single exter-

full range of corporate and consumer banking services in their respec-

nal customer accounts for more than 10% of total revenue.

tive markets. Fiduciary services provided through Colorado State Bank

and Trust are included in the Regional Banking segment.

68

 Financials_v5.qxd  2/24/06  3:47 PM  Page 69

Notes to Consolidated Financial Statements

(In Thousands)

Year ended December 31, 2005

Net interest revenue/(expense)

from external sources

Net interest revenue/(expense)

from internal sources
Total net interest revenue

Provision for credit losses
Other operating revenue
Gain on sales of assets
Capitalized mortgage
servicing rights
Financial instruments
gains (losses)
Operating expense
Recovery for impairment of
mortgage servicing rights

Income taxes
Net income

Average assets

Oklahoma
Corporate
Banking

Oklahoma
Consumer
Banking

Mortgage
Banking

Wealth
Management

Regional
Banking

All
Other/
Eliminations

Total

$ 191,040

$ (25,140)

$ 20,392

$

5,651

$ 264,273

$

(6,875)

$

449,341

(60,735)
130,305

4,757
92,707
4,758

87,421
62,281

4,632
66,266
—

(14,979)
5,413

416
16,427
1,232

11,208
16,859

218
100,647
—

(41,338)
222,935

6,195
54,719
—

18,423
11,548

(3,777)
(1,496)
—

—
449,341

12,441
329,270
5,990

—

—

17,402

—

—

—

17,402

—
102,513

—
46,875
73,625

$

$

—
84,336

—
15,396
24,183

(5,087)
35,315

(3,915)
1,389
$ 2,182

—
88,001

—
11,397
17,890

$

503
150,409

—
44,209
77,344

$

$

(1,132)
12,447

—
(6,031)
6,281

(5,716)
473,021

(3,915)
113,235
201,505

$

$4,629,400

$2,988,218

$526,224

$1,503,886

$6,420,498

$ (499,371)

$15,568,855

Average economic capital
Average invested capital

322,440
—

69,810
—

24,210
—

106,040
—

325,000
569,800

614,346
—

1,461,846
—

Performance measurements:

Return on assets
Return on economic capital
Return on invested capital
Efficiency ratio

1.59%

22.83
—
45.01

0.81%

34.64
—
65.61

0.41%
9.01
—
87.25

1.19%

16.87
—
74.89

1.20%

23.80
13.57
54.17

—
—
—
—

1.29%

13.78
—
58.98

Reconciliation to Consolidated Financial Statements

Net Interest
Revenue

Other
Operating
Revenue1

Other
Operating
Expense

Net
Income

Average
Assets

Total reportable segments
Unallocated items:

Tax-equivalent adjustment
Funds management
All others (including
eliminations), net
BOK Financial consolidated

$437,793

$354,158

$456,659

$195,224

$16,068,226

5,182
18,543

—
(709)

—
7,778

5,182
(1,789)

—
1,688,973

(12,177)
$449,341

(787)
$352,662

4,669
$469,106

2,888
$201,505

(2,188,344)
$15,568,855

1Excluding financial instrument gains/(losses)

69

 Financials_v5.qxd  2/24/06  3:47 PM  Page 70

Notes to Consolidated Financial Statements

(In Thousands)

Year ended December 31, 2004

Net interest revenue/(expense)

from external sources

Net interest revenue/(expense)

from internal sources
Total net interest revenue

Provision for credit losses
Other operating revenue
Capitalized mortgage
servicing rights
Financial instruments
gains (losses)
Operating expense
Recovery for impairment of
mortgage servicing rights

Income taxes
Net income

Average assets

Oklahoma
Corporate
Banking

Oklahoma
Consumer
Banking

Mortgage
Banking

Wealth
Management

Regional
Banking

All
Other/
Eliminations

Total

$ 148,919

$ (19,061)

$ 21,647

$

4,001

$ 200,781

$

66,956

$

423,243

(26,049)
122,870

8,956
86,493

64,873
45,812

6,964
56,611

(11,423)
10,224

340
22,055

8,888
12,889

23
93,193

(19,753)
181,028

5,507
47,017

(16,536)
50,420

(1,351)
(3,282)

—
423,243

20,439
302,087

—

—

11,365

—

—

—

11,365

—
99,007

—
39,444
61,956

$

—
76,057

—
7,548
11,854

$

(5,068)
35,415

(1,567)
1,707
$ 2,681

$

—
83,784

—
8,688
13,587

—
132,022

—
32,810
57,706

$

$

506
16,506

—
1,250
31,239

$

(4,562)
442,791

(1,567)
91,447
179,023

$4,380,491

$2,746,279

$559,034

$1,122,147

$5,754,211

$ (535,275)

$14,026,887

Average economic capital
Average invested capital

312,530
—

64,390
—

27,270

—

84,820
—

280,710
508,880

527,837
—

1,297,557

—

Performance measurements:

Return on assets
Return on economic capital
Return on invested capital
Efficiency ratio

1.41%

19.82
—
47.29

0.43%

18.41
—
74.26

0.48%
9.83

—

81.15

1.21%

16.02
—
78.98

1.00%

20.56
11.34
57.89

—
—
—
—

1.28%

13.80
—
60.11

Reconciliation to Consolidated Financial Statements

Net Interest
Revenue

Other
Operating
Revenue1

Other
Operating
Expense

Net
Income

Average
Assets

Total reportable segments
Unallocated items:

Tax-equivalent adjustment
Funds management
All others (including
eliminations), net
BOK Financial consolidated

$372,823

$316,734

$424,718

$147,784

$14,562,162

5,039
56,432

—
(3,465)

—
12,073

5,039
19,066

—
1,590,820

(11,051)
$423,243

183
$313,452

4,433
$441,224

7,134
$179,023

(2,126,095)
$14,026,887

1Excluding financial instrument gains/(losses)

70

 Financials_v5.qxd  2/24/06  3:47 PM  Page 71

Notes to Consolidated Financial Statements

(In Thousands)

Year ended December 31, 2003

Net interest revenue/(expense)

from external sources

Net interest revenue/(expense)

from internal sources
Total net interest revenue

Provision for credit losses
Other operating revenue
Capitalized mortgage
servicing rights
Financial instruments
gains (losses)
Operating expense
Recovery for impairment of
mortgage servicing rights

Income taxes
Net income

Average assets

Oklahoma
Corporate
Banking

Oklahoma
Consumer
Banking

Mortgage
Banking

Wealth
Management

Regional
Banking

All
Other/
Eliminations

Total

$ 140,818

$ (17,188)

$ 27,770

$

1,966

$ 168,995

$

69,134

$

391,495

(25,924)
114,894

10,318
77,332

58,261
41,073

6,892
47,229

(9,415)
18,355

917
36,379

8,939
10,905

390
93,757

(14,801)
154,194

6,425
37,106

(17,060)
52,074

10,694
(8,685)

—
391,495

35,636
283,118

—

—

23,922

—

—

—

23,922

—
87,585

—
36,692
57,631

$

—
66,798

4,205
58,204

—
5,684
8,928

(22,923)
18,082
$ 28,401

$

$

—
80,512

—
9,243
14,517

339
119,567

(6,551)
23,695

(2,187)
436,361

—
23,974
41,673

$

—
(4,761)
7,210

$

(22,923)
88,914
158,360

$

$4,106,441

$2,525,060

$623,823

$ 875,661

$5,000,039

$ (351,608)

$12,779,416

Average economic capital
Average invested capital

311,140
—

58,000
—

34,120
—

69,690
—

273,600
459,780

413,006
—

1,159,556
—

Performance measurements:

Return on assets
Return on economic capital
Return on invested capital
Efficiency ratio

1.40%

18.52
—
45.56

0.35%

15.39
—
75.65

4.55%

83.24
—
74.00

1.66%

20.83
—
76.93

0.83%

15.23
9.06
62.50

—
—
—
—

1.24%

13.66
—
62.47

Reconciliation to Consolidated Financial Statements

Net Interest
Revenue

Other
Operating
Revenue1

Other
Operating
Expense

Net
Income

Average
Assets

Total reportable segments
Unallocated items:

Tax-equivalent adjustment
Funds management
All others (including
eliminations), net
BOK Financial consolidated

$339,421

$315,725

$389,743

$151,150

$13,131,024

5,170
59,519

—
(6,520)

—
13,946

5,170
4,959

—
1,379,342

(12,615)
$391,495

(2,165)
$307,040

9,749
$413,438

(2,919)
$158,360

(1,730,950)
$12,779,416

1Excluding financial instrument gains/(losses)

71

 Financials_v5.qxd  2/24/06  3:47 PM  Page 72

Notes to Consolidated Financial Statements

(19) Fair Value of Financial Instruments 

The following table presents the carrying values and estimated fair values of financial instruments as of December 31, 2005 and 2004 (dollars

in thousands):

2005:

Cash and cash equivalents
Securities
Loans:

Commercial
Commercial real estate
Residential mortgage
Residential mortgage — held for sale
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

2004:

Cash and cash equivalents
Securities
Loans:

Commercial
Commercial real estate
Residential mortgage
Residential mortgage — held for sale
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

Carrying
Value

$

699,322
5,085,333

5,299,935
1,989,902
1,169,331
51,666
629,144
9,139,978

(103,876)
9,036,102

452,878
7,277,258
4,098,060
2,392,209
295,964

466,669

$

531,091
4,823,976

4,575,836
1,621,110
1,198,918
40,262
492,841
7,928,967

(108,618)
7,820,349

130,297
6,030,546
3,643,852
2,570,507
151,594

137,538

Range of
Contractual
Yields

Average
Repricing
(in years)

Discount
Rate

2.75 – 18.00%
4.00 – 12.00
2.82 – 12.13
—
3.04 – 18.90

0.33
1.21
3.29
—
2.38

4.61 – 7.25%

7.25
4.60 – 6.17
—
7.25

0.70 – 7.25
2.01 – 4.48
6.71

1.70
1.54
8.09

4.25 – 4.90
4.37 – 4.61
4.48

2.71 – 15.00%
3.50 – 15.00
2.82 – 7.96
—
2.65 – 21.00

0.41
1.08
4.17
—
2.29

2.45 – 6.68%
5.65 – 7.60
5.36 – 6.44
—
4.83 – 8.75

0.55 – 7.33
2.26 – 5.51
5.25

2.34
0.05
2.60

2.40 – 3.75
1.43 – 4.38
5.14

Estimated
Fair
Value

$

699,322
5,083,614

5,411,035
1,977,936
1,146,072
51,666
623,265
9,209,974

—
9,209,974

452,878
7,277,258
4,056,480
2,392,255
317,779

466,669

$

531,091
4,825,518

4,778,495
1,606,153
1,154,226
40,262
471,863
8,050,999

—
8,050,999

130,297
6,030,546
3,639,345
2,571,259
153,565

137,538

The  preceding  table  presents  the  estimated  fair  values  of  financial

tion  sale.  Because  no  market  exists  for  certain  of  these  financial

instruments. The fair values of certain of these instruments were cal-

instruments and management does not intend to sell these financial

culated  by  discounting  expected  cash  flows,  which  involved  signifi-

instruments,  BOK  Financial  does  not  know  whether  the  fair  values

cant judgments by management. Fair value is the estimated amount

shown  above  represent  values  at  which  the  respective  financial

at which financial assets or liabilities could be exchanged in a current

instruments could be sold individually or in the aggregate.

transaction between willing parties, other than in a forced or liquida-

72

 Financials_v5.qxd  2/24/06  3:47 PM  Page 73

Notes to Consolidated Financial Statements

The following methods and assumptions were used in estimating the

The fair values of residential mortgage loans held for sale are based

fair value of these financial instruments:

upon quoted market prices of such loans sold in securitization trans-

actions, including related unfunded loan commitments and hedging

Cash and Cash Equivalents

The book value reported in the consolidated balance sheet for cash

and short-term instruments approximates those assets’ fair values.

transactions.

Deposits

Securities

The fair values of time deposits are based on discounted cash flow

analyses using interest rates currently being offered on similar trans-

actions. Statement of Financial Accounting Standards No. 107, “Dis-

The  fair  values  of  securities  are  based  on  quoted  market  prices  or

closures  about  Fair  Value  of  Financial  Instruments,”  (“FAS  107”)

dealer quotes, when available. If quotes are not available, fair values

defines the estimated fair value of deposits with no stated maturity,

are based on quoted prices of comparable instruments.

which includes demand deposits, transaction deposits, money market

Derivatives 

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

All  derivative  instruments  are  carried  on  the  balance  sheet  at  fair

the  expected  benefit  of  these  deposits.  Accordingly,  the  positive

value.  Fair  values  for  exchange-traded  contracts  are  based  on

effect of such deposits is not included in this table.

quoted  prices.  Fair  values  for  over-the-counter  interest  rate,  com-

modity and foreign exchange contracts are based on valuations pro-

vided either by third-party dealers in the contracts, quotes provided

Other Borrowings and Subordinated Debentures

by  independent  pricing  services,  or  a  third-party  provided  pricing

The fair values of these instruments are based upon discounted cash

model.

Loans

flow analyses using interest rates currently being offered on similar

instruments.

The fair value of loans, excluding loans held for sale, are based on dis-

Off-Balance Sheet Instruments

counted cash flow analyses using interest rates currently being offered

The fair values of commercial loan commitments are based on fees

for  loans  with  similar  remaining  terms  to  maturity  and  credit  risk,

currently  charged  to  enter  into  similar  agreements,  taking  into

adjusted for the impact of interest rate floors and ceilings. The fair val-

account  the  remaining  terms  of  the  agreements.  The  fair  values  of

ues of classified loans were estimated to approximate their carrying

these  off-balance  sheet  instruments  were  not  significant  at  Decem-

values less loan loss reserves allocated to these loans of $15 million

ber 31, 2005 and 2004. 

and $28 million at December 31, 2005 and 2004, respectively.

73

 Financials_v5.qxd  2/24/06  3:47 PM  Page 74

Notes to Consolidated Financial Statements

(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

Preferred stock
Common stock
Capital surplus
Retained earnings
Treasury stock
Accumulated other comprehensive loss

Total shareholders’ equity
Total liabilities and shareholders’ equity

Statements of Earnings
(In Thousands)

Dividends, interest and fees received from subsidiaries
Other operating revenue

Total revenue

Interest expense
Professional fees and services
Contribution of stock to BOK Charitable Foundation
Other operating expense

Total expense

Income (loss) before taxes and equity in undistributed

income of subsidiaries

Federal and state income tax credit

Income (loss) before equity in undistributed income of

subsidiaries 

Equity in undistributed income of subsidiaries
Net income

December 31,

2005

2004

$

11,074
11,910
1,517,047
1,729
$1,541,760

$

—
2,606
2,606
—
4
656,579
990,422
(40,040)
(67,811)
1,539,154
$1,541,760

$

2004

127
35
162

2,185
486
4,125
2
6,798

(6,636)
(3,953)

$

13,230
11,170
1,470,405
2,184
$1,496,989

$

95,000
3,495
98,495
12
4
631,747
809,261
(30,905)
(11,625)
1,398,494
$1,496,989

2003
$ 66,165
431
66,596

1,771
545
—
(4)
2,312

64,284
(678)

(2,683)
181,706
$179,023

64,962
93,398
$158,360

2005
$153,462
468
153,930

1,500
589
—
22
2,111

151,819
(682)

152,501
49,004
$201,505

74

 Financials_v5.qxd  2/24/06  3:47 PM  Page 75

Notes to Consolidated Financial Statements

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
Contribution of stock to BOK Charitable Foundation
Write down of equity securities
Change in other assets
Change in other liabilities

Net cash provided by operating activities

Cash flows from investing activities:

Purchases of available for sale securities
Investment in subsidiaries

Net cash used by investing activities

Cash flows from financing activities:
Increase in other borrowings
Pay down of other borrowings
Issuance of preferred, common and treasury stock, net
Cash dividends
Other

Net cash provided (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

Payment of dividends in common stock
Cash paid for interest

2005

2004

2003

$ 201,505

$ 179,023

$ 158,360

(49,004)
3,583
—
—
(12,337)
(889)
142,858

—
(34,264)
(34,264)

—
(95,000)
7,032
(20,343)
(2,439)
(110,750)
(2,156)
13,230
11,074

—
1,698

$

$

(181,706)
4,609
4,125
410
(5,138)
713
2,036

(53)
(5,250)
(5,303)

—
—
7,132
(1,540)
24
5,616
2,349
10,881
13,230

65,899
1,882

$

$

(93,398)
1,325
—
—
(944)
272
65,615

(27)
(85,015)
(85,042)

105,000
(95,000)
4,627
(785)
—
13,842
(5,585)
16,466
10,881

58,300
1,947

$

$

75

 Financials_v5.qxd  2/24/06  3:47 PM  Page 76

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 debenture

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

$ 4,769,666
226,961
4,996,627
15,892
38,521
8,489,751
110,158
8,379,593
13,430,633
2,138,222
$15,568,855

$ 4,402,810
159,429
3,894,429
8,456,668
1,936,792
996,266
236,589
11,626,315
1,607,702
872,992
1,461,846
$15,568,855

2005
Revenue/
Expense1

$

$

205,952
11,587
217,539
770
1,287
555,520
—
555,520
775,116

72,721
1,106
136,573
210,400
61,606
34,220
14,367
320,593

Yield/
Rate

4.34%
5.13
4.38
4.85
3.34
6.54
—
6.63
5.78

1.65%
0.69
3.51
2.49
3.18
3.43
6.07
2.76

$

454,523

3.02%
3.39

5,182
449,341
12,441
346,946
469,106
314,740
113,235
201,505

$

1 

2 

Tax equivalent at the statutory federal and state rates for the periods presented. The taxable equivalent adjustments shown are for comparative purposes.
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.

76

 Financials_v5.qxd  2/24/06  3:47 PM  Page 77

Yield/
Rate

4.26%
5.64
4.32
3.93
1.77
5.35
—
5.43
4.99

0.92%
0.58
3.01
1.90
1.31
1.76
5.07
1.84

3.15%
3.45

Average
Balance

$ 4,656,108
207,376
4,863,484
16,025
19,944
7,644,049
116,076
7,527,973
12,427,426
1,599,461
$14,026,887

$ 3,863,276
169,556
3,584,496
7,617,328
1,611,771
1,007,237
152,983
10,389,319
1,805,558
534,453
1,297,557
$14,026,887

2004
Revenue/
Expense1

$197,884
11,672
209,556
629
353
408,785
—
408,785
619,323

$ 35,517
975
107,941
144,433
21,140
17,707
7,761
191,041

$428,282

5,039
423,243
20,439
308,890
441,224
270,470
91,447
$179,023

Average
Balance

$ 4,316,303
191,982
4,508,285
16,975
26,330
7,101,543
110,791
6,990,752
11,542,342
1,237,074
$12,779,416

$ 3,605,539
172,938
3,439,361
7,217,838
1,537,100
1,051,685
154,940
9,961,563
1,309,744
348,553
1,159,556
$12,779,416

Yield/
Rate

4.22%
6.59
4.32
4.09
1.07
5.30
—
5.38
4.96

0.87%
0.55
2.90
1.83
1.01
1.59
6.12
1.74

3.22%
3.44

2003
Revenue/
Expense1

$180,581
12,527
193,108
694
281
376,260
—
376,260
570,343

$ 31,346
944
99,639
131,929
15,590
16,682
9,477
173,678

$396,665

5,170
391,495
35,636
304,853
413,438
247,274
88,914
$158,360

77

 Financials_v5.qxd  2/24/06  3:47 PM  Page 78

Quarterly Financial Summary — Unaudited

Consolidated Daily Average Balances,
Average Yields and Rates

(Dollars in Thousands Except Per Share Data)

Three Months Ended

December 31, 2005

September 30, 2005

Average
Balance

Revenue/
Expense1

Yield/
Rate

Average
Balance

Revenue/
Expense1

Yield/
Rate

4.44%
5.05
4.47
4.68
4.00
6.98
—
7.06
6.12

1.98%
0.75
3.77
2.78
3.92
4.08
6.28
3.14

2.98%
3.34

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 debenture

Total interest-bearing liabilities

Demand deposits
Other liabilities
Shareholders’ equity

Total liabilities and shareholders’ equity

$ 4,816,263
243,521
5,059,784
20,595
57,656
9,005,546
108,998
8,896,548
14,034,583
2,131,047
$16,165,630

$ 4,821,627
154,316
4,216,625
9,192,568
1,812,752
1,049,635
296,021
12,350,976
1,530,504
777,111
1,507,039
$16,165,630

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

$ 53,375
3,046
56,421
243
581
158,387
—
158,387
215,632

$ 24,075
292
40,083
64,450
17,914
10,807
4,683
97,854

$117,778

1,392
116,386
4,450
87,344
123,903
75,377
27,219
$ 48,158

$0.72
$0.72

$ 4,800,698
231,097
5,031,795
14,560
44,882
8,635,732
109,840
8,525,892
13,617,129
1,970,746
$15,587,875

$ 4,533,912
157,772
3,958,948
8,650,632
2,067,432
1,047,423
297,284
12,062,771
1,424,102
613,667
1,487,335
$15,587,875

4.28%
4.96
4.31
4.66
3.41
6.66
—
6.75
5.83

1.66%
0.70
3.53
2.50
3.40
3.60
5.97
2.84

2.99%
3.32

$ 51,946
2,888
54,834
171
386
144,954
—
144,954
200,345

$ 18,968
280
35,255
54,503
17,738
9,510
4,477
86,228

$114,117

1,289
112,828
3,976
86,855
117,034
78,673
27,846
$ 50,827

$0.77
$0.76

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.

78

 Financials_v5.qxd  2/24/06  3:47 PM  Page 79

June 30, 2005

Average
Balance

Revenue/ Yield/
Expense1
Rate

Three Months Ended
March 31, 2005

December 31, 2004

Average
Balance

Revenue/
Expense1

Yield/
Rate

Average
Balance

Revenue/
Expense1

Yield/
Rate

4.32%
5.23
4.36
5.69
2.96
6.40
—
6.49
5.68

1.49%
0.69
3.41
2.34
2.93
3.17
5.98
2.58

3.10%
3.45

$ 4,831,186 $ 51,275
2,810
54,085
165
156
133,173
—
133,173
187,579

215,360
5,046,546
11,639
21,170
8,341,490
111,056
8,230,434
13,309,789
1,750,686
$15,060,475

$ 4,323,513 $ 16,049
285
31,499
47,833
15,764
7,224
2,980
73,801

166,426
3,710,338
8,200,277
2,160,031
914,968
200,038
11,475,314
1,586,248
558,655
1,440,258
$15,060,475

$113,778

1,245
112,533
2,015
94,591
126,010
79,099
28,634
$ 50,465

$0.79
$0.75

`

$ 4,709,193
219,873
4,929,066
10,208
31,994
7,873,974
114,106
7,759,868
12,731,136
1,598,935
$14,330,071

$ 3,841,742
160,404
3,662,455
7,664,601
1,747,391
1,005,679
152,634
10,570,305
1,938,205
453,571
1,367,990
$14,330,071

4.25%
5.37
4.30
4.17
2.11
5.62
—
5.71
5.15

1.12%
0.57
3.21
2.11
1.91
2.26
5.03
2.13

3.02%
3.38

$ 50,200
2,951
53,151
107
170
111,292
—
111,292
164,720

$ 10,779
231
29,586
40,596
8,397
5,703
1,929
56,625

$108,095

1,633
106,462
4,439
78,714
111,582
69,155
22,599
$ 46,556

$0.78
$0.70

$ 4,628,233
217,571
4,845,804
17,205
30,003
7,963,177
111,955
7,851,222
12,744,234
1,474,621
$14,218,855

$ 3,920,844
159,276
3,685,257
7,765,377
1,704,327
971,616
150,752
10,592,072
1,895,989
319,375
1,411,419
$14,218,855

4.32%
5.30
4.36
4.50
2.22
6.06
—
6.15
5.46

1.41%
0.63
3.27
2.28
2.42
2.79
5.99
2.40

3.06%
3.46

$ 49,356
2,843
52,199
191
164
119,006
—
119,006
171,560

$ 13,629
249
29,736
43,614
10,190
6,679
2,227
62,710

$108,850

1,256
107,594
2,000
78,156
102,159
81,591
29,536
$ 52,055

$0.87
$0.78

79

 Financials_v5.qxd  2/24/06  3:47 PM  Page 80

BOK Financial Corporation Board of Directors

Gregory S. Allen1
President & CEO
Advance Food Co., Inc.

Joseph E. Cappy 1
Retired Chairman & CEO
Dollar Thrifty Automotive Group 

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

Sharon J. Bell 1
Managing Partner
Rogers & Bell

William E. Durrett
Senior Chairman
American Fidelity Corp.

Robert G. Greer 2
Vice Chairman
Bank of Texas, N.A.

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

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

Chester Cadieux, III 1
President & CEO
QuikTrip Corporation

V. Burns Hargis 1
Vice Chairman
BOK Financial Corporation and 
Bank of Oklahoma, N.A.

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

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

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

Paula Marshall-Chapman 1
CEO
Bama Companies

Judith Z. Kishner 1
Manager
Zarrow Family Office, L.L.C. 

James A. Robinson
Personal Investments

David L. Kyle 1
Chairman, President & CEO
ONEOK, Inc.

Robert J. LaFortune
Personal Investments

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

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

Bank of Albuquerque, N.A. Board of Directors

Adelmo Archuleta
Owner, Professional Engineer
Molzen-Corbin & Associates

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

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

Suzanne Barker-Kalangis, Esq.
Partner, Modrall, Sperling, Roehl, 
Harris and Sisk P.A.

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

Steven G. Bradshaw
Sr. Executive Vice President
BOK Financial Corporation

Charles E. Cotter
Executive Vice President
BOK Financial Corporation

Rudy A. Davalos
Athletic Director
University of New Mexico

Thomas D. Growney
President
Tom Growney Equipment, Inc.

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

W. Jeffrey Pickryl
Sr. Executive Vice President
BOK Financial Corporation

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

Paul A. Sowards
President
Bank of Albuquerque, N.A.

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

James F. Ulrich
Chairman & CEO
Bank of Albuquerque, N.A.

Bank of Arkansas, N.A. Board of Directors

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

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

Jeff  D. Cude
Senior Vice President
Bank of Arkansas, N.A.

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

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

Ronald E. Leffler
Senior Vice President
Bank of Oklahoma, N.A.

Bank of Arizona, N.A. Board of Directors

Gregory S. Anderson
Vice Chairman
Bank of Arizona, N.A.

Charles E. Cotter
Executive Vice President
BOK Financial Corporation

Scott D. LeMarr
President
Polo Cristi Companies

Steven E. Nell
EVP, Chief Financial Officer
BOK Financial Corporation

W. Jeffrey Pickryl
Sr. Executive Vice President
BOK Financial Corporation

David Ralston
Chairman
Bank of Arizona, N.A.

Dr. David Righi
Physician
Valley Anesthesiology Consultants

James A. Sharp, Jr.
Owner
Oval Transportation Services

Dr. Anthony T. Yeung
Surgeon
Arizona Institute for 
Minimally Invasive Spine Care

Bank of Texas, N.A. Board of Directors

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

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

C. Huston Bell
Retired President 
The Vantage Companies

Edward O. Boshell, Jr.
Retired, Columbia General 
Investments, LP

Steven G. Bradshaw
Sr. Executive Vice President
BOK Financial Corporation

R. Neal Bright
Managing Partner
Bright & Bright, LLP 

H. Lynn Craft
President & CEO
Baptist Foundation of Texas

Charles W. Eisemann
Personal Investments

James J. Ellis
Managing Partner
Ellis/Roiser Associates

Robert G. Greer
Vice Chairman
Bank of Texas, N.A. - Houston

Thomas S. Swiley
President & COO
Bank of Texas, N.A. - Dallas

Mrs. Jere W. Thompson
Community Leader

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

John C. Vogt
Personal Investments

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

R. William Gribble, Jr.
President
Gribble Oil Company

J. T. Hairston, Jr.
Personal Investments

Douglas D. Hawthorne
President & CEO
Texas Health Resources

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

Richard W. Jochetz
President
Bank of Texas, N.A. - Houston

Stanley A. Lybarger
President & CEO
BOK Financial Corporation

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

W. Jeffrey Pickryl
Sr. Executive Vice President
BOK Financial Corporation

Colorado State Bank and Trust, N.A. Board of Directors (CSBT)

Aaron K. Azari
Executive Vice President
CSBT

Steven Caulkins, III
Principal
Greendeck Capital

Joel H. Farkas
Chairman
JF Companies

Thomas M. Foncannon
Senior Vice President
CSBT

H. James Holloman
Executive Vice President
Bank of Oklahoma, N.A.

Richard H. Lewis
Personal Investments

Kirk McDonald
CEO, President
Denver Newspaper Corp.

W. Jeffrey Pickryl
Sr. Executive Vice President
BOK Financial Corporation

Gregory K. Symons
Chairman & CEO
CSBT

Transfer Agent and Registrar
SunTrust Bank • (800) 568-3476

Address Shareholder Inquiries
Send certificates for transfer and address 
changes to:

BY MAIL:
SunTrust Bank
P.O. Box 4625
Atlanta, GA 30303

BY HAND OR OVERNIGHT COURIER:
SunTrust Bank
Stock Transfer Department
58 Edgewood Avenue, Room 225
Atlanta, GA 30303

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 is also readily
available at our website:  www.bokf.com

Shareholder Information

Corporate Headquarters:
Bank of Oklahoma Tower
P.O. Box 2300
Tulsa, Oklahoma 74192
(918) 588-6000

Independent Auditors:
Ernst & Young LLP
1700 One Williams Center
Tulsa, Oklahoma 74172
(918) 560-3600

Legal Counsel:
Frederic Dorwart Lawyers
Old City Hall
124 E. Fourth St.
Tulsa, Oklahoma 74103-5010
(918) 583-9922

Common Shares:  
Traded NASDAQ National Market    
NASDAQ Symbol: BOKF
Number of common shareholders of record at 
December 31, 2005: 1,199

Market Makers:  
Archipelago Exchange (The)
Boston Stock Exchange
Citadel Derivatives Group LLC
Citigroup Global Markets Inc.
Credit Research & Trading
Credit Suisse First Boston
Friedman Billings Ramsey & Co
Goldman, Sachs & Co.
GVR Company LLC
Harris Nesbitt Corp.
Howe Barnes Investments, Inc.
Jefferies & Company, Inc.
Keefe, Bruyette & Woods, Inc.
Knight Equity Markets, L.P.
Lehman Brothers Inc.
Merrill Lynch, Pierce, Fenner
Morgan Stanley & Co., Inc.
National Stock Exchange
Piper Jaffray Companies Inc.
Sandler O'Neill & Partners
Schwab Capital Markets
Stephens Inc.
SunTrust Robinson Humphrey Capital Markets
Susquehanna Capital Group
The Robinson Humphrey Co.
UBS Securities LLC

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