FINANCIAL STATEMENTS AND SUPPLEMENTAL SCHEDULE
BOK Financial Thrift Plan for Hourly Employees
As of December 31, 2005 and 2004, and for the Year Ended December 31, 2005




                 BOK Financial Thrift Plan for Hourly Employees

                              Financial Statements
                            and Supplemental Schedule


                        As of December 31, 2005 and 2004,
                    and for the Year Ended December 31, 2005




                                    Contents

Report of Independent Registered Public Accounting Firm...................1

Audited Financial Statements

Statements of Net Assets Available for Benefits...........................2
Statement of Changes in Net Assets Available for Benefits.................3
Notes to Financial Statements.............................................4

Supplemental Schedule

Schedule H; Line 4i--Schedule of Assets (Held at End of Year).............11


 1

             Report of Independent Registered Public Accounting Firm

The Plan Administrative Committee
BOK Financial Thrift Plan for Hourly Employees

We have audited the accompanying statements of net assets available for benefits
of the BOK  Financial  Thrift Plan for Hourly  Employees as of December 31, 2005
and 2004,  and the  related  statement  of changes in net assets  available  for
benefits for the year ended December 31, 2005.  These  financial  statements are
the responsibility of the Plan's management. Our responsibility is to express an
opinion on these financial statements based on our audits.

We conducted our audits in accordance  with the standards of the Public  Company
Accounting Oversight Board (United States). Those standards require that we plan
and perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement.  We were not engaged to perform an
audit of the  Plan's  internal  control  over  financial  reporting.  Our audits
included  consideration of internal control over financial  reporting as a basis
for designing audit  procedures that are appropriate in the  circumstances,  but
not for the purpose of expressing an opinion on the  effectiveness of the Plan's
internal  control  over  financial  reporting.  Accordingly,  we express no such
opinion. An audit also includes examining,  on a test basis, evidence supporting
the  amounts  and  disclosures  in  the  financial  statements,   assessing  the
accounting  principles  used and significant  estimates made by management,  and
evaluating the overall  financial  statement  presentation.  We believe that our
audits provide a reasonable basis for our opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all  material  respects,  the net assets  available  for benefits of the Plan at
December  31,  2005 and 2004,  and the changes in its net assets  available  for
benefits for the year ended December 31, 2005, in conformity with U.S. generally
accepted accounting principles.

Our audits were performed for the purpose of forming an opinion on the financial
statements taken as a whole. The  accompanying  supplemental  schedule of assets
(held at end of year) as of December  31,  2005,  is  presented  for purposes of
additional  analysis and is not a required part of the financial  statements but
is  supplementary  information  required by the  Department of Labor's Rules and
Regulations for Reporting and Disclosure  under the Employee  Retirement  Income
Security Act of 1974. This  supplemental  schedule is the  responsibility of the
Plan's management.  The supplemental schedule has been subjected to the auditing
procedures  applied  in our  audits  of the  financial  statements  and,  in our
opinion,  is fairly stated in all material respects in relation to the financial
statements taken as a whole.

/s/ Ernst & Young LLP

Tulsa, Oklahoma
June 29, 2006


 2


                 BOK Financial Thrift Plan for Hourly Employees

                 Statements of Net Assets Available for Benefits



                                                                                   December 31
                                                                             2005             2004
                                                                       ------------------------------------
 Assets
 Investments:
                                                                                   
    BOK Financial Corporation Common Stock                                 $     95,002    $    102,964
    American Performance Funds:
      Growth Equity Fund                                                              -          19,498
      Cash Management Fund                                                      142,085          89,500
      Intermediate Bond Fund                                                     34,857          29,203
    SEI Stable Asset Fund                                                       128,099          21,022
    American Advantage International Equity Fund                                      -          17,851
    American Balanced Fund                                                       21,532          17,866
    Neuberger and Berman Genesis Trust Fund                                      89,126          59,506
    Dodge and Cox Stock Fund                                                    125,884          99,180
    Vanguard Institutional Index                                                 84,259          49,495
    American Growth Fund of America                                              24,424              56
    Goldman Sachs Growth Opportunity Fund                                           455             126
    Hochkis and Wiley Midcap Valuation Fund                                       1,512             570
    T. Rowe Price New Horizons                                                    6,243             298
    American Beacon International Fund                                           27,934               -
    Bank of Oklahoma, N.A. Managed Allocation Portfolios (MAP):
        MAP Conservative Fund                                                       655               -
        MAP Balanced Fund                                                       174,720               -
        MAP Moderate Growth Fund                                                  9,397               -
        MAP Growth Fund                                                           4,116               -
        MAP Aggressive Growth Fund                                                8,517               -
    Participant Loans                                                             7,993          13,123
                                                                       ------------------------------------
  Total investments                                                             986,810         520,258

 Cash                                                                            15,078           9,024
 Accrued interest receivable                                                        556             620
                                                                       ------------------------------------
  Total assets                                                                1,002,444         529,902

 Liabilities
 Due to broker                                                                    9,032           5,697
                                                                       ------------------------------------
 Net assets available for benefits                                         $    993,412    $    524,205
                                                                       ====================================


See accompanying notes.

 3


                 BOK Financial Thrift Plan for Hourly Employees

            Statement of Changes in Net Assets Available for Benefits

                          Year ended December 31, 2005


 Additions
 Investment income:
    Interest and dividends                                      $      14,776
    Net appreciation in fair value of investments                      29,077
                                                              ------------------
                                                                       43,853
 Contributions:
    Participant                                                       209,318
    Employer                                                           45,411
    Rollover                                                          188,010
    Transfers into the Plan                                           103,710
                                                              ------------------
 Total additions                                                      590,302


 Deductions
 Benefit payments                                                     121,095

 Net increase                                                         469,207
 Net assets available for benefits, at beginning of year              524,205
                                                              ------------------
 Net assets available for benefits, at end of year              $     993,412
                                                              ==================

See accompanying notes.

 4

                 BOK Financial Thrift Plan for Hourly Employees

                          Notes to Financial Statements

                                December 31, 2005


1. Description of Plan

The following  description of the BOK Financial Thrift Plan for Hourly Employees
(the Plan) provides only general  information.  Participants should refer to the
Summary Plan Description or the Plan document for a more complete description of
the Plan's provisions.

General

The Plan is a defined  contribution plan covering all employees of BOK Financial
Corporation  (BOKF)  and its  subsidiaries  and  affiliates  (collectively,  the
Employer  or  Company)  who  have  attained  age  21 and  one  year  of  service
(equivalent to 1,000 hours) and who are  compensated on an hourly basis,  except
those  covered  under a collective  bargaining  agreement  and those  treated as
independent contractors. Effective April 1, 2003, an eligible employee may enter
the Plan on the  first  day of the  month  following  the date the  employee  is
credited with one full month of service.  Additionally, as of April 1, 2003, all
new eligible employees are automatically enrolled in the Plan at a three percent
contribution  rate unless the employee  designates on the enrollment form not to
participate or to participate at another allowable  contribution  rate. The Plan
is subject to the provisions of the Employee  Retirement  Income Security Act of
1974, as amended (ERISA).

Contributions

Participants  may elect to contribute a percentage of their  compensation  up to
the  maximum  allowable  by  federal  regulation  (as  defined by the Plan) on a
pre-tax  basis  pursuant  to a salary  reduction  agreement  filed with the Plan
administrator.  In addition, participants may make after-tax contributions which
shall not  exceed 5 percent of each  participant's  compensation,  however,  the
combination  of  pre-tax  and  after-tax  contributions  cannot be more than the
annual legal limit on the total amount that may be  contributed  to this type of
plan (as defined by the plan). For participants who attained age 50 on or before
December 31, 2005,  such  participants  were allowed to make a pre-tax  catch-up
contribution  of an  additional  $4,000  above the maximum  allowable by federal
regulation.  Participants  may elect  investment in any of 12 mutual funds,  the
Bank of Oklahoma, N.A. Managed Allocation Portfolios (MAP), self-directed common
stocks or registered investment  companies,  and BOKF Common Stock. During 2005,
the Employer authorized the following  modification to the investment selections
available to participants: (a) removal of the American Performance Growth Equity
Fund and (b) addition of the American Beacon International and MAP Funds.

 5

                 BOK Financial Thrift Plan for Hourly Employees

                    Notes to Financial Statements (continued)


1. Description of Plan (continued)

The  Employer  contributes  a matching  contribution  to the Plan.  The matching
contribution may be made in cash or in shares of BOKF Common Stock. In 2005, the
entire matching contribution of $45,411 was made in cash.

For 2005, the Employer matching  contribution ranges from $.40 to $1.00 for each
dollar of the  participant's  contribution,  up to five percent of compensation,
based on each participant's years of service as follows:

                   Years of Service                     Matching Percentage
------------------------------------------------- ------------------------------

Less than four years                                           40%
At least four, but less than ten years                         60%
At least ten, but less than fifteen years                      80%
Fifteen or more years                                         100%

The  Employer  may in its  sole  discretion,  make an  additional  discretionary
contribution to the Plan. There was no discretionary contribution in 2005.

During 2005,  rollovers and transfers  into the Plan were $188,010 and $103,710,
respectively. The rollovers relate primarily to one participant that rolled over
the participant's balance in a previous employer's plan and the transfers relate
primarily to one employee that transferred from salaried to hourly status.

Participant Accounts

Each participant's  account is credited with the participant's  contribution and
allocations of (a) the Employer's contribution and (b) Plan earnings and charged
with  administrative   expenses,   if  applicable.   Allocations  are  based  on
participant earnings or account balances, as defined by the Plan. The benefit to
which a  participant  is entitled is the benefit  that can be provided  from the
participant's vested account.

 6

                 BOK Financial Thrift Plan for Hourly Employees

                    Notes to Financial Statements (continued)

1. Description of Plan (continued)

Vesting

Participants  vest in  Employer  matching  contributions  based  upon  years  of
service,  as defined  by the Plan.  Participants  are 100  percent  vested  upon
completion of five years of service and are immediately vested in their deferred
(pre-tax)  contributions,  after-tax  contributions,  and  the  actual  earnings
thereon.

Participant Loans

Participants  may borrow  against their accounts in amounts not less than $1,000
and not to exceed the  lesser of  $50,000  or 50  percent  of the  participant's
vested account  balance.  Loans will bear interest based on the current  banking
prime  rate when the loan is  requested  and may not  exceed a  five-year  term,
unless  the  proceeds  are  used  to  acquire  the  primary   residence  of  the
participant,  in which  case the  maximum  term may be 25  years.  The loans are
secured by the balance in the participant's account. Interest rates are based on
the Chase prime rate and range from 4.00 percent to 7.00 percent at December 31,
2005. Repayment is made by payroll withholdings.

Payment of Benefits

A participant who terminated  employment with a vested account balance less than
$1,000 ($5,000 prior to March 28, 2005), excluding rollover contributions,  will
receive a  lump-sum  payment.  If the  participant  has a vested  balance  which
exceeds   $1,000   ($5,000  prior  to  March  28,  2005),   excluding   rollover
contributions,  and has not elected payment to another eligible  retirement plan
in a direct  rollover  or to  receive  payment  directly,  the Plan will pay the
distribution in a direct rollover to an individual retirement account designated
by the Plan  Administrator.  In lieu of  lump-sum  payment,  a  participant  who
terminates  employment  after his or her 65th  birthday or attaining  age 50 and
completing ten years of service, shall be entitled to elect monthly,  quarterly,
semi-annual  or annual  installment  payments  to be paid  over a period  not to
exceed 10 years from the benefit  commencement  date.  The  installments  may be
accelerated at the direction of the participant.

Forfeitures

Forfeited balances of terminated  participants'  nonvested accounts are utilized
to pay administrative costs or to reduce future Employer  contributions.  During
2005, forfeitures of $1,729 were used to reduce Employer matching contributions.
Additionally, at

 7

                 BOK Financial Thrift Plan for Hourly Employees

                    Notes to Financial Statements (continued)

1. Description of Plan (continued)

December 31, 2005 and 2004  forfeitures  outstanding that will be used to reduce
future Employer matching contributions were $5,990 and $5,822, respectively.

Plan Termination

The Employer expects to continue the Plan  indefinitely.  However,  the Employer
reserves the right to discontinue  the Plan or to amend the Plan, in whole or in
part, from  time-to-time.  In the event of Plan  termination,  participants will
become 100 percent vested in their accounts.

2. Summary of Significant Accounting Policies

Basis of Accounting

The  financial  statements  of the Plan are  prepared  on the  accrual  basis of
accounting. Benefit payments are recorded when paid.

Administrative Expenses

The  Employer  pays all  administrative  expenses  of the Plan,  except for loan
origination fees, which are paid by the participants.

Investment Valuation and Income Recognition

Shares of registered  investment companies are valued at published market prices
which represent the net asset value of shares held by the Plan at year-end.  The
BOKF Common Stock is valued at the quoted market price.  The MAP fund values are
obtained from the MAP annual  audited  financial  statements.  The MAP funds are
reported  at market  value.  Participant  loans  receivable  are valued at their
outstanding balances which approximates fair value.

Purchases and sales of securities are recorded on a trade-date  basis.  Dividend
income is recorded on the ex-dividend  date.  Interest income is recorded on the
accrual basis.

Use of Estimates

The  preparation  of financial  statements  in  conformity  with U.S.  generally
accepted accounting principles requires management to make estimates that affect
the amounts reported in the financial  statements and accompanying notes. Actual
results could differ from those estimates.

 8

                 BOK Financial Thrift Plan for Hourly Employees

                    Notes to Financial Statements (continued)

3. Investments

The Plan's  investments  are held by a bank  administered  trust fund at Bank of
Oklahoma, N.A. Trust Division (the Trustee). During 2005, the Plan's investments
(including  investments  purchased  and sold,  as well as held  during the year)
appreciated  (depreciated)  in fair value as  determined by quoted market prices
for BOKF Common Stock and  published  market  prices for  registered  investment
companies as follows:

                                                   Net Appreciation
                                                (Depreciation) in Fair
                                                 Value of Investments
                                               --------------------------

   BOK Financial Corporation Common Stock              $    (4,330)
   Registered investment companies                          28,126
   Collective Investment trusts                              5,281
                                               --------------------------
                                                       $    29,077
                                               ==========================

The fair value of all  individual  investments,  including  those that represent
five percent or more of the Plan's net assets are  separately  identified in the
statements of net assets available for benefits.

4. Income Tax Status

The Plan has received a determination  letter from the Internal  Revenue Service
dated April 1, 2002,  stating that the Plan is qualified under Section 401(a) of
the Internal Revenue Code (the Code) and, therefore, the related trust is exempt
from taxation. Subsequent to this determination by the Internal Revenue Service,
the Plan was  amended.  Once  qualified,  the Plan is  required  to  operate  in
conformity  with the Code to maintain  its  qualification.  The plan sponsor has
indicated  that it will take the  necessary  steps,  if any, to bring the Plan's
operations into compliance with the Code.

 9

                 BOK Financial Thrift Plan for Hourly Employees

                    Notes to Financial Statements (continued)


5. Reconciliation of Financial Statements to the Form 5500

The following is a  reconciliation  of net assets available for benefits per the
financial statements to the Form 5500:


                                                                 December 31
                                                            2005             2004
                                                      ----------------- ----------------
Net assets available for benefits
                                                                    
   per the financial statements                         $    993,412      $    524,205
Less: Benefits payable                                             -           (17,955)
                                                      ----------------- ----------------
Net assets available for benefits per the Form 5500     $    993,412      $    506,250
                                                      ================= ================


The  following  is a  reconciliation  of  benefit  payments  per  the  financial
statements to the Form 5500:

                                                         Year ended
                                                     December 31, 2005
                                                     -------------------

Benefit payments per financial statements               $    121,095
Add: Benefits payable at end of year                               -
Less: Benefits payable at beginning of year                  (17,955)
                                                     -------------------
Benefit payments to participants per the Form 5500      $    103,140
                                                     ===================

Benefits  payable are recorded on the Form 5500 for payments to participants who
requested payment prior to December 31, but had not been paid as of that date.

6. Risks and Uncertainties

The Plan invests in various  investment  securities.  Investment  securities are
exposed to various risks such as interest rate,  market and credit risks. Due to
the level of risk associated with certain investment securities,  it is at least
reasonably  possible  that changes in the values of investment  securities  will
occur  in  the  near  term  and  that  such  changes  could  materially   affect
participants' account balances and the amounts reported in the statements of net
assets available for benefits.

 10

                 BOK Financial Thrift Plan for Hourly Employees

                    Notes to Financial Statements (continued)

7. Related Parties

BOK Investment  Advisors,  Inc.  (BOKIA),  a wholly owned  subsidiary of Bank of
Oklahoma, N.A. (BOK), serves as investment advisor to American Performance Funds
(AP  Funds).  AP  Funds  is  a  diversified,   open-ended,   investment  company
established  in 1987 as a business  trust under the  Investment Act of 1940. BOk
serves as custodian for AP Funds. Effective July 1, 2004, BOKIA began serving as
the AP Funds  administrator.  BOK  Financial  offers  the AP Funds  products  to
customers  and  employees,  in the  ordinary  course of  business,  through  its
brokerage and trading,  employee benefit plan and trust services,  as well as to
the public. Additionally, a portion of the Plan's assets are invested in Company
stock.  Since the Company is the Plan  Sponsor,  investments  involving  Company
stock qualify as party-in-interest  transactions.  All of these transactions are
exempt from prohibited transaction rules.

Effective  January 1, 2005, the Plan was authorized to include Bank of Oklahoma,
N.A. Managed  Allocation  Portfolio (MAP) Funds as investment  options.  The MAP
Funds include five  different  managed  funds  designed to meet  different  risk
tolerances  and years to  retirement.  The portfolios are comprised of different
asset classes,  capitalizations  and investment  styles.  BOKIA also services as
investment advisor to the MAP Funds.

8. Subsequent Events

Effective April 1, 2006, the Company matching  contribution  changed as a result
of  modifications  to both the  Plan and the BOK  Financial  Pension  Plan.  The
Company will begin matching participant contributions up to 6% of the employee's
compensation. Additionally, the Employer match will range from $.50 to $2.00 for
each dollar of the participant's  contribution based on the participant's  years
of  service.  Matching  contributions  for the 2006 plan year are  limited  to a
certain   dollar  amount   (ranging  from  $6,050  to  $22,550)   based  on  the
participant's year of service. The Company will also make a special contribution
for participants making less than $40,000. This special contribution is $750 for
participants  making less than  $30,000 and phases out for  participants  making
$30,000 to  $40,000.  In  addition  to the  contribution  changes,  the limit on
after-tax contributions will change to 6% of the participant's compensation.



                              Supplemental Schedule

 11

                 BOK Financial Thrift Plan for Hourly Employees

                           EIN: 73-0780382 Plan #: 004

          Schedule H; Line 4i--Schedule of Assets (Held at End of Year)

                                December 31, 2005


                                                                     (c)
                           (b)                           Description of Investments            (e)
                    Identity of Issue,                  Including Maturity Date, Rate        Current
 (a)        Borrower, Lessor or Similar Party          of Interest, or Maturity Value         Value
 ----------------------------------------------------------------------------------------------------------

                                                                                         
  *  BOK Financial Corporation                       BOKF Common Stock                      $    95,002

  *  American Performance Funds                      Cash Management Fund                       142,085
                                                     Intermediate Bond Fund                      34,857

     SEI Funds                                       Stable Asset Fund                          128,099

     American                                        Balanced Fund                               21,532

     Neuberger and Berman                            Genesis Trust Fund                          89,126

     Dodge and Cox                                   Stock Fund                                 125,884

     Vanguard                                        Institutional Index                         84,259

     American                                        Growth Fund of America                      24,424

     American                                        Beacon International Fund                   27,934

     Goldman Sachs                                   Growth Opportunity Fund                        455

     Hochkis and Wiley                               Midcap Valuation Fund                        1,512

     T. Rowe Price                                   New Horizons                                 6,243

  *  Bank of Oklahoma N.A.,
        Managed Allocation Portfolios                MAP Conservative Fund                          655
                                                     MAP Balanced Fund                          174,720
                                                     MAP Moderate Growth Fund                     9,397
                                                     MAP Growth Fund                              4,116
                                                     MAP Aggressive Growth Fund                   8,517

  *  Participant Loans                               Interest rates ranging from 4.00
                                                        percent to 7.00 percent                   7,993
                                                                                        -------------------
                                                                                            $   986,810
                                                                                        ===================


*Indicates Party-in-interest to the Plan

Column (d) is not applicable as all investments are participant directed.