As filed with the Securities and Exchange Commission on May 10, 2007
 =============================================================================


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

                                    FORM 10-Q

(Mark One)

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

        For the quarterly period ended March 31, 2007

                                       OR

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

        For the transition period from _____________ to ______________


                           Commission File No. 0-19341

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

                Oklahoma                                 73-1373454
      (State or other jurisdiction                     (IRS Employer
   of Incorporation or Organization)                Identification No.)

         Bank of Oklahoma Tower
             P.O. Box 2300
            Tulsa, Oklahoma                                74192
(Address of Principal Executive Offices)                 (Zip Code)

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

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

     Indicate by check mark whether the registrant is a large accelerated filer,
an accelerated filer, or a non-accelerated filer. See definition of "accelerated
filer and large  accelerated  filer" in Rule 12b-2 of the Exchange  Act.  (Check
one):

Large accelerated filer |X|  Accelerated filer  |_|  Non-accelerated filer  |_|

     Indicate  by check mark  whether  the  registrant  is a shell  company  (as
defined in Rule 12b-2 of the Act). Yes|_| No|X|

     Indicate the number of shares  outstanding of each of the issuer's  classes
of common stock, as of the latest practicable date:  67,225,437 shares of common
stock ($.00006 par value) as of April 30, 2007.

 ==============================================================================
 2
                            BOK Financial Corporation
                                    Form 10-Q
                          Quarter Ended March 31, 2007

                                      Index

Part I.  Financial Information
     Management's Discussion and Analysis (Item 2)                         2
     Market Risk (Item 3)                                                 26
     Controls and Procedures (Item 4)                                     28
     Consolidated Financial Statements - Unaudited (Item 1)               29
     Quarterly Financial Summary - Unaudited (Item 2)                     40
Part II.  Other Information
     Item 2. Unregistered Sales of Equity Securities and Use of Proceeds  42
     Item 6. Exhibits                                                     42
Signatures                                                                43

Management's  Discussion  and  Analysis of  Financial  Condition  and Results of
Operations

Performance Summary

BOK  Financial  Corporation  reported  earnings  of $52.8  million  or $0.78 per
diluted share for the first  quarter of 2007,  compared with net income of $54.7
million or $0.81 per diluted share for the first quarter of 2006. The annualized
returns  on average  assets  and  shareholders'  equity  were 1.19% and  12.29%,
respectively  for the first quarter of 2007,  compared with returns of 1.36% and
14.35%, respectively for 2006. Net income for the first quarter of 2006 included
$3.3 million or $0.05 per share from net  appreciation  in the value of mortgage
servicing rights due to a significant increase in mortgage commitment rates.

Highlights of the quarter included:

o    Average  outstanding loans increased 19% and average deposits  increased 8%
     over the first quarter of 2006.

o    Net  interest  revenue  grew $11.5  million or 10% over last  year's  first
     quarter, 15% annualized over the fourth quarter of 2006.

o    Net interest margin was 3.32%, up from 3.25% for the fourth quarter of last
     year.

o    Non-accruing  loans and  annualized  net  charge-offs  continued to be near
     historic lows. Increased provision for loan losses is based largely on loan
     growth; exposure to sub-prime mortgage loans is minimal.

o    Fees and  commission  revenue  increased  $2.1 million or 2% over the first
     quarter of 2006; decreased $2.9 million over the preceding quarter.

o    Other  operating  expenses  increased  $6.9  million  or 6% over the  first
     quarter of 2006,  excluding changes in the fair value of mortgage servicing
     rights.

o    Debt  ratings  were  upgraded  by Moody's  Investor  Service to  A-2/Stable
     Outlook for BOK Financial and A-1/Stable Outlook for Bank of Oklahoma.

o    An agreement was reached to acquire Texas-based, Worth Bancorporation, Inc.
     for approximately  $127 million in cash. As of December 31, 2006, Worth had
     total assets of $390 million, net loans of $272 million,  total deposits of
     $345 million and five branches in the Fort Worth market.

Net interest  revenue grew $11.5  million or 10% over the first quarter of 2006.
Average  outstanding  loan  balances  increased  $1.7 billion or 19% and average
deposits  increased  $931 million or 8%. Net  interest  margin was 3.32% for the
first  quarter of 2007  compared  with  3.39% for the first  quarter of 2006 and
3.25% for the fourth quarter of 2006. The aggregate net loan yield was 8.02%, up
from  7.44% for the  first  quarter  of 2006 and  unchanged  from the  preceding
quarter.  The cost of interest-bearing  funds was 4.14% for the first quarter of
2007  compared with 3.43% for the first quarter of 2006 and 4.10% for the fourth
quarter of 2006.

Non-accruing  loans totaled $31 million or 0.28 % of outstanding  loans at March
31, 2007 compared with $32 million or 0.35 % of  outstanding  loans at March 31,
2006 and $26 million or 0.24% at December 31, 2006.  The combined

 3

allowance  for loan losses and  reserve  for  off-balance  sheet  credit  losses
totaled  $134  million or 1.21% of  outstanding  loans at March 31,  2007,  $126
million  or 1.38% of  outstanding  loans at March 31,  2006 and $130  million or
1.22% at December 31, 2006. The provision for credit losses was $6.5 million for
the first  quarter of 2007,  $3.4 million for the same period last year and $6.0
million for the fourth quarter of 2006.

Fees and commission  revenue increased $2.1 million or 2% over the first quarter
of 2006.  Revenue from  bank-owned  life insurance  totaled $2.4 million for the
first  quarter  of 2007  compared  with  $63  thousand  in 2006.  Other  revenue
decreased  $3.2 million due  primarily to fees earned on margin asset  balances.
Transaction card revenue and trust fees grew $1.7 million or 9% and $1.1 million
or 6%, respectively, over the first quarter of 2006.

Operating  expenses increased $6.9 million or 6% over the first quarter of 2006,
excluding changes in the value of mortgage servicing.  Personnel costs increased
$7.5 million due largely to a $5.1 million  increase in salaries and wages.  All
other operating expenses declined by a net $609 thousand or 1% compared with the
first quarter of 2006.

The fair value of mortgage  servicing  rights  decreased $1.2 million during the
first quarter of 2007. At the same time, the fair value of securities held as an
economic hedge of mortgage  servicing  rights  increased $254 thousand for a net
pre-tax loss of $910  thousand.  Rising  interest  rates and slowing  prepayment
speeds  during the first  quarter of 2006  increased  the fair value of mortgage
servicing  rights  $7.1  million  and  decreased  the fair  value of  securities
designated  as an economic  hedge $1.9  million  for a net pre-tax  gain of $5.2
million.


Results of Operations

Net Interest Revenue

Tax-equivalent  net interest  revenue  increased to $130.9 million for the first
quarter of 2007 from $118.8  million for the same period of 2006,  due primarily
to a $1.7 billion or 19% increase in average outstanding loan principal. Average
loan growth was funded by a $931 million or 8% increase in average  deposits and
a $696  million  increase  in borrowed  funds.  Table 1 shows the effects on net
interest  revenue  of changes in average  balances  and  interest  rates for the
various types of earning assets and interest-bearing liabilities.

Net interest margin, the ratio of tax-equivalent net interest revenue to average
earning assets was 3.32% for the first quarter of 2007,  compared with 3.39% for
the first  quarter of 2006 and 3.25% for the fourth  quarter of 2006.  Yields on
average earning assets  continued to trend upwards due to rising market interest
rates.  The yield on  average  earning  assets  was  7.02%,  up 60 basis  points
compared  with the first  quarter of 2006 and 9 basis points over the  preceding
quarter.  The yield on average  outstanding  loans was 8.02%, up 58 basis points
over the first  quarter of 2006 and unchanged  from the fourth  quarter of 2006.
The weighted  average spread of our commercial loan portfolio over LIBOR funding
sources  was  approximately  245  basis  points  for the first  quarter  of 2007
compared with  approximately  265 basis points for the first quarter of 2006 and
250 basis points for the fourth  quarter of 2006.  The  tax-equivalent  yield on
securities  was 4.93% for the first  quarter of 2007 compared with 4.64% for the
first quarter of 2006 and 4.74% for the fourth quarter of 2006.

Rates paid on average  interest-bearing  liabilities during the first quarter of
2007 increased 71 basis points over the first quarter of 2006 and 4 basis points
over the preceding  quarter.  Rates paid on  interest-bearing  deposit  accounts
increased 66 basis points over the first quarter of 2006 and 5 basis points over
the fourth quarter of 2006. The cost of other  interest-bearing  funds increased
73 basis points  compared with the same period last year and were unchanged from
the preceding  quarter at 5.38%.  Non-interest  bearing funds and changes in the
mix of funding  sources added 44 basis points to the net interest  margin in the
first  quarter of 2007  compared  with 40 basis points for the first  quarter of
2006 and 42 basis points for the fourth quarter of 2006.

Our overall objective is to manage the Company's balance sheet to be essentially
neutral to changes in interest rates.  Approximately  69% of our commercial loan
portfolio is either  variable  rate or fixed rate that will  reprice  within one
year.  These  loans are funded  primarily  by deposit  accounts  that are either
non-interest  bearing, or that reprice more slowly than the loans. The result is
a balance sheet that would be asset sensitive, which means that assets generally
reprice more quickly than liabilities.  To help achieve a rate-neutral position,
we  purchase  fixed-rate,  mortgage-backed  securities,  which are  funded  with
short-term  wholesale  funds.  The  liability-sensitive  nature of this strategy
provides an offset to the asset-sensitive characteristics of our loan portfolio.
The expected  duration of these securities is approximately 2.5 years based on a
range of interest rate and prepayment assumptions.

We also use derivative  instruments  to manage our interest rate risk.  Interest
rate swaps with a combined  notional  amount of $807 million  convert fixed rate
liabilities to floating rate based on LIBOR.  The purpose of these  derivatives,

 4

which  include  interest  rate  swaps  designated  as fair value  hedges,  is to
position  our  balance  sheet  to be  neutral  to  changes  in  interest  rates.
Subsequent  to March 31, 2007,  we  terminated a $150  million  notional  amount
interest rate swap to bring the rate  sensitivity of our balance sheet closer to
a neutral  position.  This swap had been  designated  as a fair  value  hedge of
long-term,  fixed rate debt.  The $1.4  million  fair value  adjustment  will be
recognized  as a reduction of interest  expense over the  remaining  life of the
debt.

We also have  interest  rate swaps with a notional  amount of $100  million that
convert prime-based loans to fixed rate. The purpose of these derivatives, which
have been designated as cash flow hedges, is to position our balance sheet to be
neutral to changes in interest rates.

The  effectiveness of these strategies is reflected in the overall change in net
interest revenue due to changes in interest rates as shown in Table 1 and in the
interest  rate  sensitivity  projections  as shown in the Market Risk section of
this report.


------------------------------------------------------------------------------
Table 1 - Volume / Rate Analysis
(In thousands)
                                                   Three Months Ended
                                                 March 31, 2007 / 2006
                                           -----------------------------------
                                                          Change Due To (1)
                                           -----------------------------------
                                                                     Yield /
                                              Change     Volume       Rate
                                           -----------------------------------
Tax-equivalent interest revenue:
                                                         
  Securities                                $   3,886 $     357   $   3,529
  Trading securities                              310       194         116
  Loans                                        46,932    32,573      14,359
  Funds sold and resell agreements                426       401          25
------------------------------------------------------------------------------
Total                                          51,554    33,525      18,029
------------------------------------------------------------------------------
Interest expense:
  Transaction deposits                         15,238     5,197      10,041
  Savings deposits                                 34       (29)         63
  Time deposits                                 9,746     2,769       6,977
  Federal funds purchased and
   repurchase agreements                       15,082    10,622       4,460
  Other borrowings                               (909)   (2,680)      1,771
  Subordinated debentures                         288        34         254
------------------------------------------------------------------------------
Total                                          39,479    15,913      23,566
------------------------------------------------------------------------------
  Tax-equivalent net interest revenue          12,075    17,612      (5,537)
Change in tax-equivalent adjustment              (563)
------------------------------------------------------------------------------
Net interest revenue                       $   11,512
------------------------------------------------------------------------------
(1) Changes attributable to both volume and yield/rate are allocated to both
volume and yield/rate on an equal basis.


Other Operating Revenue

Other operating  revenue  increased $2.8 million compared with the first quarter
of last year.  Fees and  commission  revenue  increased  $2.1 million or 2%. The
remaining  increase  of $691  thousand  was due to changes in gains or losses on
assets sold, securities and derivatives.

Diversified sources of fees and commission revenue are a significant part of our
business  strategy and  represented  42% of total revenue,  excluding  gains and
losses on asset sales,  securities  and  derivatives,  for the first  quarter of
2007.  We believe  that a variety of fee  revenue  sources  provide an offset to
changes in interest rates,  values in the equity markets,  commodity  prices and
consumer spending, all of which can be volatile.

Fees and commissions revenue

Transaction  card  revenue  increased  $1.7  million or 9%. ATM network  revenue
increased  $1.2 million or 16% while check card revenue  increased $833 thousand
or 19% over the first quarter of 2006.  Merchant  discount fees  decreased  $385
thousand or 6% compared with the first quarter of 2006.  Much of the decrease in
merchant discount fees resulted from the loss of one customer's business and was
largely offset by a corresponding decrease in transaction processing

 5

costs.

Trust fees and commissions increased $1.1 million or 6% for the first quarter of
2007.  The fair  value of all  trust  relationships,  which is the  basis  for a
significant  portion of trust fees  increased to $33.3 billion at March 31, 2007
compared with $29.1 billion at March 31, 2006.  Personal trust  management fees,
which provide 34% of total trust fees and commissions increased $607 thousand or
10%.  Employee  benefit plan management  fees,  which provide 20% of total trust
fees,  grew  $460  thousand  or 14%.  Net fees from  mutual  fund  advisory  and
administrative  services  increased  $238  thousand  or  6%.  Revenue  from  the
management of oil and gas properties and other real estate, which provide 11% of
total trust revenue, were unchanged from the first quarter of 2006.

Trust  activities in the Oklahoma,  Colorado and Texas  markets  provided  $13.4
million,  $2.6 million and $1.7 million,  respectively,  of total trust fees and
commissions  during the first quarter of 2007.  Trust revenue grew $167 thousand
or 1% in the Oklahoma  market,  $191  thousand or 8% in the Colorado  market and
$201 thousand or 13% in the Texas market.

Brokerage and trading  revenue  decreased $74 thousand or 1%.  Customer  hedging
revenue increased $798 thousand or 23% to $4.3 million. Volatility in the energy
markets  prompted our energy  customers to more actively hedge their gas and oil
production.  Revenue from securities trading activities  decreased $677 thousand
or 13%.  Much of the decrease in trading  revenue is  attributed to lower demand
caused by the flattened  yield curve and the effect of  disruptions  in mortgage
lending on customers that purchase  securities and derivatives  from us to hedge
their loan production.  Revenue from retail brokerage  activities increased $704
thousand or 21% over the same period of 2006.  Investment banking fees were down
$899 thousand or 67% due to the timing of transaction closings.

Deposit  service  charges and fees  increased $612 thousand or 3% over the first
quarter of 2006. Overdraft fees grew $732 thousand or 5% due to increased volume
and commercial account fees increased $224 thousand or 3%. Growth in fee revenue
was partially  offset by a $344  thousand or 20% decrease in service  charges on
retail accounts due to service-charge free deposit products.

Mortgage banking revenue,  which is discussed more fully in the Line of Business
- Mortgage Banking section of this report decreased $249 thousand or 4% compared
with 2006. Servicing revenue totaled $4.2 million for the first quarter of 2007,
up $200  thousand or 5% over the same  period  last year.  Net gains on mortgage
loans sold totaled $2.3  million,  down $449  thousand from the first quarter of
2006.

Changes in the cash surrender value of life insurance  provided  revenue of $2.4
million in the first  quarter of 2007 and $63  thousand in the first  quarter of
2006.  The Company made a $202 million  investment in bank-owned  life insurance
during the third quarter of 2006.

Other operating  revenue  included $758 thousand of fees earned on margin assets
in the first  quarter  of 2007 and $2.5  million  in the first  quarter of 2006.
Margin  assets  which  are  held  primarily  as part of the  Company's  customer
derivatives  programs  averaged  $94  million  for the  first  quarter  of 2007,
compared with $249 million for the first quarter of 2006. Fees earned on average
margin assets  decreased to 3.28% in the first quarter of 2007 from 4.13% in the
first quarter of 2006.

Securities and derivatives

BOK Financial recognized net losses of $563 thousand on securities for the first
quarter of 2007,  including  a $315  thousand  other than  temporary  impairment
charge  against  a  security  sold  shortly  after  quarter  end.  Net  gains on
securities held as an economic hedge of mortgage  servicing  rights totaled $254
thousand.  Securities held as an economic hedge of the mortgage servicing rights
are separately identified on the balance sheet as "mortgage trading securities".
Mortgage trading securities are carried at fair value; changes in fair value are
recognized  in earnings as they occur.  The  Company's  use of  securities as an
economic hedge of mortgage servicing rights is more-fully  discussed in the Line
of Business - Mortgage Banking section of this report.  During the first quarter
of 2006, BOK Financial  recognized net losses of $1.9 million on securities held
as an economic hedge of mortgage servicing rights and net gains of $640 thousand
on other securities.

 6

Net gains on  derivatives  totaled $71 thousand  for the first  quarter of 2007,
compared  with net  losses  of $309  thousand  in 2006.  Net  gains or losses on
derivatives  consist of fair value  adjustments  of  derivatives  used to manage
interest rate risk and the related hedged liabilities.


--------------------------------------------------------------------------------------------------------------------------
Table 2 - Other Operating Revenue
(In thousands)
                                                                         Three Months Ended
                                           -------------------------------------------------------------------------------
                                               March 31,       Dec. 31,        Sept. 30,        June 30,        March 31,
                                                 2007           2006             2006            2006             2006
                                           -------------------------------------------------------------------------------
                                                                                              
Brokerage and trading revenue               $   13,282     $   14,382       $   13,078      $   12,597       $   13,356
Transaction card revenue                        20,184         20,224           19,939          19,951           18,508
Trust fees and commissions                      18,995         18,240           17,101          17,751           17,945
Deposit service charges and fees                24,598         25,787           26,322          26,341           23,986
Mortgage banking revenue                         6,540          6,077            6,935           7,195            6,789
Bank-owned life insurance                        2,399          2,346              117              32               63
Other revenue                                    5,990          7,799            9,519          10,037            9,279
--------------------------------------------------------------------------------------------------------------------------
  Total fees and commissions                    91,988         94,855           93,011          93,904           89,926
--------------------------------------------------------------------------------------------------------------------------
Gain (loss) on sales of assets                     694            252              475            (269)           1,041
Gain (loss) on securities, net                    (563)          (864)           3,718          (2,583)          (1,221)
Gain (loss) on derivatives, net                     71           (520)             379            (172)            (309)
--------------------------------------------------------------------------------------------------------------------------
  Total other operating revenue             $   92,190     $   93,723       $   97,583      $   90,880       $   89,437
--------------------------------------------------------------------------------------------------------------------------



Other Operating Expense

Other operating expense for the first quarter of 2007 totaled $132.5 million,  a
$15.1  million  increase  from 2006.  The increase in other  operating  expenses
resulted  largely  from  changes  in the  value of  mortgage  servicing  rights.
Depreciation  of the fair value of mortgage  servicing  rights  during the first
quarter of 2007 increased  operating expenses $1.2 million.  Appreciation in the
value of mortgage  servicing rights decreased  operating expense by $7.1 million
in the  first  quarter  of 2006.  Excluding  changes  in the  value of  mortgage
servicing rights, operating expenses increased $6.9 million or 6% over the first
quarter or 2006 due to higher personnel expense.

Personnel expense

Personnel  expense  totaled $78.7 million for the first quarter of 2007 compared
with $71.2 million for the first quarter of 2006. Regular  compensation  expense
which  consists  primarily of salaries and wages  totaled  $49.1 million for the
first quarter of 2007,  up $5.1 million or 12% increase over 2006.  The increase
in regular  compensation  expense was due to a 8%  increase  in average  regular
compensation  per  full-time  equivalent  employee  and a 4% increase in average
staffing.  Growth in average  compensation  per  full-time  equivalent  employee
reflects  the cost of hiring  top talent to support  expansion  in the  regional
markets, product development, and technology.

Incentive  compensation  expense  includes the  recognized  costs of  cash-based
commissions,  bonus and incentive programs,  stock-based  compensation plans and
deferred compensation plans.  Stock-based compensation plans include both equity
and liability awards.

Incentive  compensation  expense  totaled $17.0 million for the first quarter of
2007,  an increase of $1.8 million or 12% over 2006.  First quarter 2007 expense
for the Company's various  cash-based  incentive programs totaled $15.4 million,
up  $2.8  million  over  last  year.   These  programs   consist   primarily  of
formula-based  plans that determine  incentive amounts based on  pre-established
growth criteria. Compensation expense for stock-based compensation plans totaled
$1.6  million  for the  first  quarter  of 2007 and $2.6  million  for the first
quarter  of  2006.  Compensation  expense  for  stock-based  compensation  plans
accounted  for as equity  awards  totaled $2.2  million in the first  quarter of
2007, compared with $1.5 million in the first quarter of 2006. Expense for these
awards is determined by the award's grant-date fair value and is not affected by
subsequent   changes  in  the  market  value  of  BOK  Financial  common  stock.
Compensation  expense  for  stock-based  compensation  plans  accounted  for  as
liability  awards was a net  credit of $637  thousand  for the first  quarter of
2007,  compared with $1.1 million  expense in 2006.  Expense for these liability
awards is based on current fair value,  including  current period changes due to
the  market  value  of BOK  Financial  common  stock.  The  market  value of BOK
Financial  common stock  decreased from $54.98 per share at December 31, 2006 to
$49.53 per share at March 31, 2007.

 7

Employee  benefit  expenses  totaled $12.6 million for the first quarter of 2007
and $12.0 million for the first  quarter of 2006.  The increase in benefit costs
included $963 thousand due to payroll taxes, partially offset by a $575 thousand
decrease in employee insurance costs.

Data processing and communications expense

Data processing and communication expenses were unchanged from the first quarter
of 2006. This expense consists of two broad categories,  data processing systems
and transaction  card processing.  Data processing  systems costs increased $350
thousand,  or 3%  compared  with the first  quarter  of 2006.  Transaction  card
processing costs decreased $371 thousand or 6%,  consistent with the decrease in
merchant discount revenue.


----------------------------------------------------------------------------------------------------------------------
 Table 3 - Other Operating Expense
(In thousands)
                                                                   Three Months Ended
                                   ----------------------------------------------------------------------------------
                                      March 31,        Dec. 31,       Sept. 30,         June 30,         March 31,
                                        2007             2006           2006              2006             2006
                                   ----------------------------------------------------------------------------------
                                                                                      
Personnel                          $    78,729     $    78,054     $    74,605      $    72,369      $    71,232
Business promotion                       4,570           5,345           4,401            4,802            4,803
Professional fees and services           4,874           4,734           4,734            4,362            3,914
Net occupancy and equipment             13,206          12,741          13,222           13,199           13,026
Data processing & communications        16,974          16,843          16,931           16,157           16,995
Printing, postage and supplies           3,969           3,774           4,182            4,001            3,905
Net losses and operating
   expenses of repossessed assets          207             167              34               54              219
Amortization of intangible assets        1,136           1,299           1,299            1,359            1,370
Mortgage banking costs                   2,944           3,034           2,869            2,839            3,087
Change in fair value of mortgage
  servicing rights                       1,164            (236)          7,921           (3,613)          (7,081)
Other expense                            4,739           8,236           8,612            6,598            5,909
---------------------------------------------------------------------------------------------------------------------
  Total other operating expense    $   132,512     $   133,991     $   138,810      $   122,127      $   117,379
---------------------------------------------------------------------------------------------------------------------



Income Taxes

Income tax expense was $29.2  million or 36% of book  taxable  income,  compared
with $31.2 million or 36% of book taxable  income for the first quarter of 2006.
We adopted FASB  Interpretation  No. 48,  "Accounting  for Uncertainty in Income
Taxes"  ("FIN  48") on  January  1, 2007.  FIN 48  established  recognition  and
measurement  standards and expanded  disclosure  requirements  for uncertain tax
positions.  Retained earnings at the beginning of the first quarter were reduced
by $609 thousand based on the provisions of FIN 48.


Lines of Business

BOK Financial  operates five  principal  lines of business:  Oklahoma  corporate
banking,  Oklahoma consumer banking,  mortgage banking,  wealth management,  and
regional  banking.  Mortgage  banking  activities  include loan  origination and
servicing across all markets served by the Company.  Wealth management  provides
brokerage  and  trading,  private  financial  services and  investment  advisory
services in all  markets.  It also  provides  fiduciary  services in all markets
except  Colorado.  Fiduciary  services  in  Colorado  are  included  in regional
banking.  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 Company's  overall  liquidity
needs and  interest  rate risk.  Each line of  business  borrows  funds from and
provides  funds  to the  funds  management  unit  as  needed  to  support  their
operations.  Operating results for Funds Management and Other include the effect
of interest rate risk positions and risk  management  activities,  the provision
for credit  losses,  tax-exempt  income and tax credits  and  certain  executive
compensation costs that are not attributed to the lines of business.

BOK Financial  allocates  resources and  evaluates  performance  of its lines of
business after allocation of funds, certain indirect expenses, taxes and capital
costs.  The  cost of  funds  borrowed  from  the  funds  management  unit by the
operating

 8

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.

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

Consolidated  net income  provided by the  regional  banking  unit  continued to
increase due largely to asset growth.  Also,  performance by business units that
generate  deposits for the Company,  such as the Oklahoma  consumer banking unit
and the  regional  banking unit  continued to improve due  primarily to internal
funds pricing credits.  Rising short-term  interest rates increased the internal
transfer pricing credit provided to units that generate  lower-costing funds for
the  Company.  Losses in Funds  Management  and Other was due  primarily  to the
transfer pricing credit provided to operating units that generate  lower-costing
funds for the Company and the  provision  for credit  losses in excess of actual
net charge-offs during the quarter.  The Mortgage Banking unit's contribution to
consolidated  net  income  decreased  due to  changes  in the net fair  value of
mortgage servicing rights.

During the first  quarter of 2007,  activities  in the Kansas  City  market were
transferred  from  Oklahoma  Corporate  Banking to Regional  Banking.  Operating
results for the first quarter of 2006 have been restated for this change.



-------------------------------------------- --------------------------------
Table 4 - Net Income by Line of Business
(In thousands)                                Three months ended March 31,
                                                   2007             2006
                                             ---------------- ---------------
                                                          
Regional banking                               $ 24,905         $ 22,298
Oklahoma corporate banking                       18,045           18,098
Mortgage banking                                     46            3,144
Oklahoma consumer banking                         9,461            8,467
Wealth management                                 7,355            7,759
-------------------------------------------- ---------------- ---------------
    Subtotal                                     59,812           59,766
Funds management and other                       (7,019)          (5,018)
-------------------------------------------- ---------------- ---------------
     Total                                     $ 52,793         $ 54,748
-------------------------------------------- ---------------- ---------------



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,  the Oklahoma
Corporate  Banking  Division has specialized  groups that serve customers in the
energy,  agriculture,  healthcare and banking/finance  industries,  and includes
TransFund, our electronic funds transfer network. The Oklahoma Corporate Banking
Division  contributed  $18.0 million or 34% to  consolidated  net income for the
first quarter of 2007. This compares to $18.1 million or 33% of consolidated net
income for 2006.  Average  loans  attributed to the Oklahoma  Corporate  Banking
Division  were $4.4 billion for the first  quarter of 2007,  compared  with $4.1
billion for the first quarter of 2006. Deposits attributed to Oklahoma Corporate
Banking  averaged  $2.1 billion for the first  quarter of 2007, up 19% over last
year.  Increased  average  loans and deposits  combined to increase net interest
revenue $1.5 million or 4%. Other operating  revenue  decreased $340 thousand or
2%. A $1.2  million or 18% increase in ATM  processing  fees was offset by lower
revenue on operating  leases,  merchant discount fees and letter of credit fees.
Operating  expenses  increased $684 thousand or 2%. Personnel  expense increased
$1.2  million  or 15% due to  growth  in both  regular  salaries  and  incentive
compensation. Non-personnel operating expenses, including allocations for shared
services, decreased $562 thousand.

 9


Table 5 -  Oklahoma Corporate Banking
 (Dollars in Thousands)
                                              Three months ended March 31,
                                          ----------------------------------
                                                 2007              2006
                                             ------------- --- -------------
                                                      
NIR (expense) from external sources       $      61,131     $      58,618
NIR (expense) from internal sources             (23,127)          (22,066)
                                             -------------     -------------
Net interest revenue                             38,004            36,552

Other operating revenue                          21,030            21,370
Operating expense                                28,151            27,467
Net loans charged off                             1,331               834
Net income                                       18,045            18,098

Average assets                            $   5,786,800     $   5,099,312
Average economic capital                        425,580           382,380

Return on assets                                    1.26%           1.44%
Return on economic capital                         17.20%          19.19%
Efficiency ratio                                   47.69%          47.42%



Oklahoma Consumer Banking

The Oklahoma Consumer Banking Division 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.  Additionally,  the  division  is a
significant  referral  source for the Bank of Oklahoma  Mortgage  Division ("BOk
Mortgage") and BOSC's retail brokerage  division.  Consumer  banking  activities
outside of Oklahoma are included in the Regional Banking division.  The Oklahoma
Consumer  Banking  Division  contributed $9.5 million or 18% to consolidated net
income for the first  quarter of 2007.  This  compares to $8.5 million or 15% of
consolidated  net  income  for  2006.  Net  interest  revenue,  which  consisted
primarily of credits for funds provided to the funds  management  unit increased
$2.0 million or 13%. Average deposits attributed to this Division increased $156
million,  or 6%  compared  with last  year.  The value to the  Company  of these
lower-costing retail deposits continues to increase as short-term interest rates
rise. Operating revenue increased $624 thousand or 4% over last year. Check card
fees  increased  $604  thousand  or 19% and  overdraft  charges  increased  $447
thousand or 4%. Other service charges on retail deposit  accounts were down $232
thousand or 20% due to service charge free deposit products.  Operating expenses
increased $842 thousand or 4%. Personnel  expense grew $465 thousand or 6% while
non-personnel  expenses  and  allocations  for shared  services  increased  $377
thousand.  The Oklahoma  Consumer Banking Division opened two new branch offices
in the first quarter of 2007.


Table 6 -  Oklahoma Consumer Banking
 (Dollars in Thousands)
                                            Three months ended March 31,
                                       ----------------------------------
                                              2007              2006
                                          -------------     -------------
                                                   
NIR (expense) from external sources    $     (20,152)    $     (13,438)
NIR (expense) from internal sources           38,215            29,459
                                          -------------     -------------
Net interest revenue                          18,063            16,021

Other operating revenue                       17,879            17,255
Operating expense                             20,175            19,333
Net loans charged off                            261               133
Net income                                     9,461             8,467

Average assets                         $   2,929,035     $   2,768,947
Average economic capital                      65,700            55,780

Return on assets                                 1.31%           1.24%
Return on economic capital                      58.40%          61.56%
Efficiency ratio                                56.13%          58.10%


 10

Mortgage Banking

BOK Financial  engages in mortgage banking  activities  through the BOk Mortgage
Division  of  Bank  of  Oklahoma.  These  activities  include  the  origination,
marketing and servicing of conventional and government-sponsored mortgage loans.
Mortgage  banking  activities  provided  net income of $46 thousand in the first
quarter of 2007, compared with $3.1 million in the first quarter of 2006.

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 volumes are high. Conversely,  the
loan servicing sector generally performs best when mortgage rates are relatively
high and  prepayments  are low.  Mortgage  loan  commitment  rates were  largely
unchanged  during the first quarter of 2007 and increased  significantly  during
the first quarter of 2006.

Loan Production Sector

Loan  production  revenue  totaled $2.2  million for the first  quarter of 2007,
including  $2.3  million  of  capitalized  mortgage  servicing  rights and a $40
thousand net loss on loans sold.  Loan  production  revenue totaled $3.0 million
for the first quarter of 2006,  including $2.8 million of  capitalized  mortgage
servicing  rights.  Mortgage  loans funded in the first  quarter of 2007 totaled
$215 million,  including $177 million of loans funded for resale and $38 million
of loans funded for retention by  affiliates.  Mortgage loans funded in the same
period of 2006  totaled  $183  million.  Approximately  62% of the loans  funded
during the first quarter of 2007 was to borrowers in Oklahoma.  Loan  production
activities resulted in net pre-tax income of $223 thousand for the first quarter
of 2007 and pre-tax  income of $160 thousand for the first quarter of 2006.  The
pipeline of mortgage loan  applications  totaled $267 million at March 31, 2007,
compared  with $199  million at December  31, 2006 and $268 million at March 31,
2006.

Loan Servicing Sector

The loan servicing  sector had a net pre-tax loss of $871 thousand for the first
quarter of 2007  compared to a net pre-tax  profit of $4.5  million for the same
period of 2006. Average mortgage  commitment rates were largely unchanged during
the first quarter of 2007. The fair value of mortgage servicing rights decreased
$1.2 million  during the first quarter of 2007. At the same time, the fair value
of securities held as an economic hedge of the servicing  rights  increased $254
thousand.

During the first quarter of 2006,  the fair value of mortgage  servicing  rights
appreciated  $7.1 million due to a 28 basis point  increase in average  mortgage
commitment rates and a slow-down in housing turnover.  Appreciation in the value
of servicing  rights was partially offset by a $1.9 million decrease in the fair
value of securities held as an economic hedge.

Servicing  revenue,  which  is  included  in  mortgage  banking  revenue  on the
Consolidated Statements of Earnings,  totaled $4.2 million for the first quarter
of 2007 and $4.0 million for the first quarter of 2006. The average  outstanding
balance of loans  serviced for others was $4.4 billion  during 2007  compared to
$4.0 billion during 2006.  Annualized  servicing  revenue per  outstanding  loan
principal  was 38 basis points for the first  quarter of 2007,  compared with 40
basis points for the first quarter last year.

In  addition to changes in the fair value of  mortgage  servicing  rights due to
anticipated  prepayments and other factors, the fair value of mortgage servicing
rights decreased $2.6 million and $2.7 million during the first quarters of 2007
and 2006, respectively, due to actual runoff of the underlying loans serviced.

 11


Table 7 -  Mortgage Banking
 (Dollars in Thousands)
                                                 Three months ended March 31,
                                             ----------------------------------
                                                    2007              2006
                                                ------------- --- -------------
                                                         
NIR (expense) from external sources          $       7,815     $       4,782
NIR (expense) from internal sources                 (6,952)           (4,230)
                                                -------------     -------------
Net interest revenue                                 2,349             2,835
Other operating revenue                              4,940             4,363
Operating expense                                    7,098             7,669
Change in fair value of mortgage servicing
   rights                                            1,164            (7,081)
Gains (losses) on financial instruments, net           254            (1,861)
Net income                                              46             3,144

Average assets                               $     621,835     $     446,436
Average economic capital                            23,360            22,390

Return on assets                                       0.03%           2.86%
Return on economic capital                             0.80%          56.95%
Efficiency ratio                                      87.07%          98.95%


BOK Financial  designates a portion of its  securities  portfolio as an economic
hedge against the risk of loss on its mortgage servicing rights. Mortgage-backed
securities  and U.S.  government  agency  debentures are designated as "mortgage
trading  securities" when prepayment risks exceed certain levels.  Additionally,
interest rate  derivative  contracts may also be designated as an economic hedge
of the risk of loss on  mortgage  servicing  rights.  Because the fair values of
these  instruments  are  expected  to vary  inversely  to the fair  value of the
servicing  rights,  they are expected to partially  offset risk. These financial
instruments  are carried at fair value.  Changes in fair value are recognized in
current period income.  No special hedge  accounting  treatment is applicable to
either the mortgage servicing rights or the financial instruments  designated as
an economic hedge.

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.  Therefore, the computed change
in value of the servicing  rights for a specified  change in interest  rates may
not correlate to the change in value of the securities.

At March 31, 2007, financial instruments with a fair value of $132 million and a
net  unrealized  loss of $69 thousand were held for the economic  hedge program.
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 March 31,
2007, the pre-tax results of this modeling on reported earnings were:

Table 8 - Interest Rate Sensitivity - Mortgage Servicing
(Dollars in Thousands)
                                           50 bp increase   50 bp decrease
Anticipated change in:
Fair value of mortgage servicing rights    $    3,295       $   (4,943)
Fair value of hedging instruments              (3,565)           3,470
                                          ----------------- ----------------
   Net                                     $     (270)      $   (1,473)
                                          ----------------- ----------------


Table 8 shows the non-linear  effect of changes in mortgage  commitment rates on
the value of mortgage  servicing  rights.  A 50 basis point increase in rates is
expected to increase  value by $3.3 million  while a 50 basis point  decrease is
expected to reduce value by $4.9 million.  This considers that there is an upper
limit to appreciation in the value of servicing  rights as rates rise due to the
contractual  repayment terms of the loans and other factors.  There is much less
of a limit on the speed at which  mortgage  loans may prepay in a declining rate
environment.

Modeling  changes in value of the  mortgage  servicing  rights due to changes in
interest rates assumes stable  relationships  between mortgage  commitment rates
and discount rates used to determine the present value of future cash flows.  It
also assumes a stable  relationship  between assumed loan prepayments and actual
prepayments of our loans.  Changes in market conditions can increase or decrease
the  discount  spread over  benchmark  rates  expected by  investors in mortgage

 12

servicing  rights and actual  prepayment  speeds may increase or decrease due to
factors other than changes in interest rates. These factors and others may cause
changes  in the  value of our  mortgage  servicing  rights  to  differ  from our
expectations.


Wealth Management

BOK  Financial  provides a wide range of financial  services  through its wealth
management  line  of  business,   including  banking,  fiduciary  and  brokerage
services.  Clients  include  affluent  individuals,  businesses,  not-for-profit
organizations and governmental agencies. Wealth management services are provided
primarily  to  clients  throughout  Oklahoma,   Texas  and  New  Mexico.  Wealth
management  services  are  provided to clients in Colorado  through our Regional
Banking line of business. Additionally,  wealth management includes a nationally
competitive,  self-directed  401(k)  program  and  administration  and  advisory
services to the American  Performance family of mutual funds.  Activities within
the Wealth Management unit also include retail sales of mutual funds, securities
and annuities,  institutional  sales of securities,  bond underwriting and other
financial advisory services and customer risk management programs.

Wealth Management contributed $7.4 million or 14% to consolidated net income for
the first quarter of 2007.  This compared to $7.8 million or 14% of consolidated
net income for the first quarter of 2006. Trust and private  financial  services
provided  $5.9  million  of net  income in the first  quarter  of 2007,  up $398
thousand  or 7% over last year.  Net income  provided by  brokerage  and trading
activities  totaled $1.4  million,  down $828  thousand  compared with the first
quarter of 2006.

Net interest  revenue for the Wealth  Management  unit increased $2.4 million or
36% over the first quarter of 2006. Lower funding costs related to margin assets
held as part of our customer  derivatives  programs  increased  the net interest
margin by $1.4  million.  However,  this was  largely  offset by a $1.3  million
reduction in margin fees, which are included in operating revenue. The remaining
$942  thousand  increase in net interest  revenue was due to growth in loans and
deposits held by private financial services.

In addition to the decrease in operating revenue due to margin fees,  investment
banking revenue  declined $898 thousand  compared with the first quarter of 2006
due to the  timing  of  transaction  closings.  This  decrease  in  revenue  was
partially  offset by trust and  retail  brokerage  fees,  which  increased  $801
thousand and $647 thousand, respectively.

Trust fees and  commissions  totaled $16.3 million for the first quarter of 2007
and $15.5 million for the first quarter of 2006. At March 31, 2007 and 2006, the
wealth  management  line of  business  was  responsible  for trust  assets  with
aggregate market values of $30.6 billion and $26.6 billion, respectively,  under
various fiduciary  arrangements.  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 $11.3 billion of trust
assets at March 31, 2007 compared with $9.5 billion at March 31, 2006.

Trading fees and  commissions,  which are also  included in  operating  revenue,
totaled $12.4 million,  up $473 thousand or 4% over last year.  Customer trading
revenue increased $656 thousand due largely to volatility in energy prices. This
revenue  growth was offset by a $891  million  decrease  in  securities  trading
profits  due to the flat yield  curve and a slow-down  in the  mortgage  market.
Retail brokerage fees increased $647 thousand or 19%.

Operating  expenses  totaled $26.9 million for the first quarter of 2007, a $1.7
million or 7% increase  over 2006.  Personnel  costs rose $1.5 million or 9% due
primarily to higher costs in trust and brokerage and trading.

 13


Table 9 -  Wealth Management
 (Dollars in Thousands)
                                             Three months ended March 31,
                                         ----------------------------------
                                                2007              2006
                                            -------------     -------------
                                                     
NIR (expense) from external sources      $       4,525     $       2,464
NIR (expense) from internal sources              4,286             4,038
                                            -------------     -------------
Net interest revenue                             8,811             6,502

Other operating revenue                         30,170            31,385
Operating expense                               26,930            25,191
Net income                                       7,355             7,759

Average assets                           $   1,691,212     $   1,876,539
Average economic capital                       145,740           137,060

Return on assets                                   1.76%           1.68%
Return on economic capital                        20.47%          22.96%
Efficiency ratio                                  69.08%          66.49%



Regional Banking

Regional  Banking  consists  primarily of the corporate and  commercial  banking
services  provided by Bank of Texas,  N.A., Bank of  Albuquerque,  N.A., Bank of
Arkansas,  N.A., Colorado State Bank and Trust, N.A., Bank of Arizona,  N.A. and
Bank of  Kansas  City,  N.A.  in  their  respective  markets.  It also  includes
fiduciary  services  provided  by  Colorado  State  Bank and Trust,  N.A.  Small
businesses  and  middle-market   corporations  are  Regional  Banking's  primary
customer  focus.   Regional  Banking   contributed   $24.9  million  or  47%  to
consolidated  net income  during the first  quarter of 2007.  This compares with
$22.3  million or 41% of  consolidated  net income for the same  period in 2006.
Growth in net income  contributed  by the  regional  banks came  primarily  from
operations in Texas. Net income from Texas operations  increased $1.2 million or
9% compared  with the same period of 2006.  In addition,  net income for 2007 in
Colorado, New Mexico and Arizona increased $787 thousand, $288 thousand and $352
thousand, respectively. Net income in Arkansas increased $161 thousand from last
year.

Net income from Texas operations  totaled $13.9 million for the first quarter of
2007,  up $1.2  million or 9% over last year.  Net  interest  revenue  grew $3.3
million or 9%.  Average  loans  increased  $460  million,  or 21% from the first
quarter  of 2006.  The  growth in  average  earning  assets was funded by a $148
million  increase in average  deposits and borrowings from the funds  management
unit.  Operating  expenses  increased $1.4 million or 7% due to personnel costs.
Three retail  banking  locations were opened in the Dallas area during the first
quarter of 2007.

Net income from operations in Colorado was $4.2 million for the first quarter of
2007,  compared  with $3.4 million for the first  quarter of 2006.  Net interest
revenue  increased $1.9 million or 22% due primarily to a $516 million  increase
in average  earning  assets.  Average loans increased $232 million while average
funds provided to the funds  management  unit  increased  $251 million.  Average
deposits  increased $237 million or 37% in the Colorado market.  Other operating
revenue grew $274 thousand or 9% due primarily to trust fees and commissions. At
March 31, 2007 and 2006,  Colorado  regional  banking was  responsible for trust
assets  with   aggregate   fair  values  of  $2.7  billion  and  $2.5   billion,
respectively,  under  various  fiduciary  arrangements.  We have  sole or  joint
discretionary  authority  over $1.0  billion of trust  assets at March 31, 2007,
compared with $960 million at March 31, 2006.  Operating expenses increased $786
thousand or 13% including a $405 thousand or 13% increase in personnel costs.

Net  income  from New  Mexico  operations  increased  $288  thousand  or 6%. Net
interest  revenue  was up $696  thousand  or 6% over the first  quarter of 2006.
Average loans increased $96 million or 16%.  Average  deposits in the New Mexico
market increased $58 million,  or 6%. Operating expenses increased $242 thousand
or 3% due to personnel costs.

Outstanding loans attributed to the Arizona market averaged $477 million for the
first quarter of 2007, up $265 million from the first quarter of 2006's  average
of $212  million.  Deposits  averaged $119 million for the first quarter of 2007
and $108  million  for the first  quarter  of 2006.  Loan  growth  was funded by
borrowings  from the funds  management  unit.  Net interest  revenue was up $1.5
million or 48% due to loan growth.  Operating expenses increased $1.1 million or
43%.  Personnel costs were up $856 thousand as we continue to build a commercial
banking  presence in Phoenix and Tucson.  We also opened our first retail branch
in Tucson during the first quarter of 2007.

 14

During the first  quarter of 2007,  we  acquired  the charter for Bank of Kansas
City to start  full-service  banking  operations  in Missouri.  Previously,  our
full-service  banking rights were restricted to Kansas City, Kansas. We now have
two  full-service  banking  locations in the Kansas City market.  Average  loans
attributed  to the Kansas City market were $149 million for the first quarter of
2007, up $81 million or 120% over the same period of 2006.



Table 10 -  Bank of Texas
 (Dollars in Thousands)
                                            Three months ended March 31,
                                        ----------------------------------
                                               2007              2006
                                           -------------     -------------
                                                    
NIR (expense) from external sources     $      45,307     $      39,012
NIR (expense) from internal sources            (7,199)           (4,182)
                                           -------------     -------------
Net interest revenue                           38,108            34,830

Other operating revenue                         6,285             5,463
Operating expense                              21,711            20,283
Net loans charged off                           1,145               401
Net income                                     13,903            12,745

Average assets                          $   3,956,383     $   3,545,802
Average economic capital                      302,990           216,710
Average invested capital                      470,070          383,790

Return on assets                                  1.43%           1.46%
Return on economic capital                       18.61%          23.85%
Return on average invested capital               11.99%          13.47%
Efficiency ratio                                 48.91%          50.34%




Table 11 -  Bank of Albuquerque
 (Dollars in Thousands)
                                              Three months ended March 31,
                                          ----------------------------------
                                                 2007              2006
                                             -------------     -------------
                                                      
NIR (expense) from external sources       $      17,711     $      15,674
NIR (expense) from internal sources              (5,226)           (3,885)
                                             -------------     -------------
Net interest revenue                             12,485            11,789

Other operating revenue                           3,925             3,887
Operating expense                                 7,314             7,072
Net loans charged off                               131                59
Net income                                        5,508             5,221

Average assets                            $   1,538,373     $   1,472,386
Average economic capital                         90,190            76,150
Average invested capital                        109,280           95,240

Return on assets                                    1.45%           1.44%
Return on economic capital                         24.77%          27.81%
Return on average invested capital                 20.44%          22.23%
Efficiency ratio                                   44.57%          45.11%


 15


Table 12 - Bank of Arkansas
 (Dollars in Thousands)
                                               Three months ended March 31,
                                          ----------------------------------
                                                 2007              2006
                                             -------------     -------------
                                                      
NIR (expense) from external sources       $       3,441     $       2,289
NIR (expense) from internal sources              (1,391)             (719)
                                             -------------     -------------
Net interest revenue                              2,050             1,570

Other operating revenue                             334               253
Operating expense                                 1,041               857
Net loans charged off                               142                43
Net income                                          725               564

Average assets                            $     282,367     $     196,070
Average economic capital                         19,620            13,400
Average invested capital                         19,620           13,400

Return on assets                                    1.04%           1.17%
Return on economic capital                         14.99%          17.07%
Return on average invested capital                 14.99%          17.07%
Efficiency ratio                                   43.67%          47.01%



Table 13 - Colorado State Bank and Trust
 (Dollars in Thousands)
                                              Three months ended March 31,
                                         ----------------------------------
                                                2007              2006
                                            -------------     -------------
                                                     
NIR (expense) from external sources      $      17,410     $      11,550
NIR (expense) from internal sources             (7,031)           (3,025)
                                            -------------     -------------
Net interest revenue                            10,379             8,525

Other operating revenue                          3,187             2,913
Operating expense                                6,747             5,961
Net loans charged off / (recovered)                 74               (46)
Net income                                       4,161             3,374

Average assets                           $   1,557,792     $   1,037,770
Average economic capital                        85,780            60,210
Average invested capital                       127,760          102,190

Return on assets                                   1.08%           1.32%
Return on economic capital                        19.67%          22.73%
Return on average invested capital                13.21%          13.39%
Efficiency ratio                                  49.73%          52.12%


 16


Table 14 - Bank of Arizona
 (Dollars in Thousands)
                                              Three months ended March 31,
                                          ----------------------------------
                                                 2007              2006
                                             -------------     -------------
                                                      
NIR (expense) from external sources       $       9,557     $       4,685
NIR (expense) from internal sources              (4,982)           (1,590)
                                             -------------     -------------
Net interest revenue                              4,575             3,095

Other operating revenue                             184               165
Operating expense                                 3,636             2,551
Net loans charged off                                 -                 4
Net income                                          686               334

Average assets                            $     552,591     $     295,158
Average economic capital                         39,470            16,820
Average invested capital                         56,120           33,470

Return on assets                                    0.50%           0.46%
Return on economic capital                          7.05%           8.05%
Return on average invested capital                  4.96%           4.05%
Efficiency ratio                                   76.40%          78.25%



Financial Condition

Securities

Securities are classified as either held for  investment,  available for sale or
trading  based  upon  asset/liability   management  strategies,   liquidity  and
profitability  objectives and regulatory  requirements.  Investment  securities,
which consist  primarily of Oklahoma  municipal  bonds,  are carried at cost and
adjusted for amortization of premiums or accretion of discounts.  Management has
the ability and intent to hold these securities until they mature. Available for
sale securities, which may be sold prior to maturity, are carried at fair value.
Unrealized  gains or losses,  less deferred  taxes,  are recorded as accumulated
other  comprehensive  income in shareholders'  equity.  Certain  mortgage-backed
securities,  identified as mortgage trading securities,  have been designated as
economic hedges of mortgage  servicing  rights.  These securities are carried at
fair value with changes in fair value recognized in current period income. These
securities  are held with the intent that gains or losses will offset changes in
the fair value of  mortgage  servicing  rights.  The  Company  also  maintains a
separate trading securities portfolio.  Trading portfolio securities,  which are
also  carried  at fair value with  changes in fair value  recognized  in current
period income, are acquired and held with the intent to sell at a profit.

The  amortized  cost of available  for sale  securities  totaled $4.9 billion at
March 31, 2007 and $4.8 billion at December 31, 2006. Mortgage-backed securities
continued to represent  substantially  all  available  for sale  securities.  As
previously discussed in the Net Interest Revenue section 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  extensive  modeling of risk both
before  making  an  investment  and  throughout  the life of the  security.  The
effective duration of the mortgage-backed securities portfolio was approximately
2.5  years at March 31,  2007 and 2.6 years at  December  31,  2006.  Management
estimates  that  the  effective  duration  of  the  mortgage-backed   securities
portfolio  would extend to 3.4 years  assuming a 300 basis point  immediate rate
shock.

Net unrealized  losses on available for sale  securities  totaled $69 million at
March 31, 2007  compared with net  unrealized  losses of $97 million at December
31,  2006.  The  decrease in net  unrealized  losses  during the quarter was due
primarily to falling  interest  rates.  The aggregate gross amount of unrealized
losses at March 31, 2007 was $83  million,  down $108  million from the previous
quarter's end.  Management  evaluated the securities with  unrealized  losses to
determine  if we  believe  that  the  losses  were  temporary.  This  evaluation
considered  factors such as causes of the  unrealized  losses and  prospects for
recovery over various interest rate scenarios and time periods.  Management does
not  believe  that  any of the  unrealized  losses  are  due to  credit  quality
concerns.  We also  considered our intent and ability to either hold or sell the
securities.  It is our belief, based on currently available  information and our
evaluation, that the

 17

unrealized losses in these securities are temporary.

Bank-Owned Life Insurance

During  the third  quarter  of 2006,  the  Company  purchased  $202  million  in
bank-owned  life  insurance.  This investment is expected to provide a long-term
source  of  earnings  to  support   existing   employee   benefit   obligations.
Substantially  all of the funds are held in separate  accounts  and  invested in
U.S.  government,  mortgage-backed  and  corporate  debt  securities.  The  cash
surrender value of the life insurance  policies is further supported by a stable
value wrap, which protects against changes in the fair value of the investments.
The cash  surrender  value of the  policies,  including  the value of the stable
value wrap, was $208 million at March 31, 2007. In addition to investment in the
separate accounts,  $8 million of the $202 million amount invested paid taxes on
the insurance premiums. These taxes will be recovered over a ten-year period. At
March 31, 2007, a $7 million  receivable was recorded based on the present value
of the taxes.

Loans

The aggregate  loan  portfolio at March 31, 2007 totaled $11.1  billion,  a $427
million or 16% annualized  increase since  December 31, 2006.  Commercial  loans
increased $233 million or 15% annualized  and commercial  real estate  increased
$104  million or 17%  annualized.  Mortgage  and consumer  loans  increased  $72
million and $17 million, respectively.



---------------------------------------------------------------------------------------------------------------------
Table 15 - Loans
(In thousands)
                                         March 31,        Dec. 31,       Sept. 30,        June 30,        March 31,
                                           2007             2006           2006             2006            2006
                                    ---------------------------------------------------------------------------------
Commercial:
                                                                                        
  Energy                             $   1,781,224    $   1,763,180   $   1,538,651   $   1,514,353    $   1,367,400
  Services                               1,596,844        1,555,141       1,432,156       1,405,060        1,358,194
  Wholesale/retail                       1,015,229          932,531         894,608         879,203          850,013
  Manufacturing                            622,329          609,571         598,424         541,592          519,100
  Healthcare                               642,876          602,273         572,911         546,595          534,091
  Agriculture                              309,439          321,380         299,901         292,022          284,277
  Other commercial and industrial          474,415          424,808         340,925         360,493          325,746
---------------------------------------------------------------------------------------------------------------------
      Total commercial                   6,442,356        6,208,884       5,677,576       5,539,318        5,238,821
---------------------------------------------------------------------------------------------------------------------

Commercial real estate:
  Construction and land development        925,762          889,925         826,077         789,991          686,400
  Multifamily                              249,080          239,000         253,141         228,781          205,755
  Other real estate loans                1,375,805        1,317,615       1,245,941       1,304,164        1,212,805
---------------------------------------------------------------------------------------------------------------------
      Total commercial real estate       2,550,647        2,446,540       2,325,159       2,322,936        2,104,960
---------------------------------------------------------------------------------------------------------------------

Residential mortgage:
  Secured by 1-4 family
    residential properties               1,318,291        1,256,259       1,242,193       1,211,448        1,177,337
  Residential mortgages held for sale       75,011           64,625          58,031          54,026           40,299
---------------------------------------------------------------------------------------------------------------------
      Total residential mortgage         1,393,302        1,320,884       1,300,224       1,265,474        1,217,636
---------------------------------------------------------------------------------------------------------------------

Consumer                                   756,989          739,495         702,947         666,740          640,542
---------------------------------------------------------------------------------------------------------------------
  Total                              $  11,143,294    $  10,715,803   $  10,005,906   $   9,794,468    $   9,201,959
---------------------------------------------------------------------------------------------------------------------



The  commercial  loan portfolio  totaled $6.4 billion at March 31, 2007.  Energy
loans  totaled  $1.8  billion or 16% of total  loans.  Outstanding  energy loans
increased  $18  million,  or 4%  annualized,  during the first  quarter of 2007.
Approximately  $1.5 billion of loans in the energy  portfolio was to oil and gas
producers.  The amount of credit available to these customers  generally depends
on a  percentage  of  the  value  of  their  proven  energy  reserves  based  on
anticipated  prices.  The  energy  category  also  included  loans to  borrowers
involved in the  transportation  and sale of oil and gas and to  borrowers  that
manufacture  equipment or provide  other  services to the energy  industry.  The
services sector of the portfolio  totaled $1.6 billion,  or 14% of the Company's
total  outstanding  loans.  Loans in this sector of the portfolio  increased $42
million or 11% annualized  since December 31, 2006. The services sector consists
of a large number of loans to a variety of businesses, including communications,
gaming and transportation  services.  Approximately $1.1 billion of the services
sector is made up of loans with balances of less than $10 million.

 18

Other  notable loan  concentrations  by primary  industry of the  borrowers  are
presented in Table 15.

BOK Financial participates in shared national credits when appropriate to obtain
or maintain business relationships with local customers. Shared national credits
are defined by banking  regulators  as credits of more than $20 million and with
three or more non-affiliated  banks as participants.  The outstanding  principal
balances of these loans  totaled $1.4 billion at March 31, 2007 and December 31,
2006.  Substantially  all of these  loans were to  borrowers  with local  market
relationships.  BOK Financial serves as the agent lender in approximately 25% of
the shared national credits,  based on dollars  committed.  Our 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 $2.6 billion or 23% of the loan  portfolio
at March 31, 2007. Construction and land development loans totaled $926 million,
up $36 million or 16% annualized over December 31, 2006.  Construction  and land
development  included $718 million of loans secured by single family residential
lots and  premises,  up $19 million from the previous  quarter's  end. The major
components of other  commercial  real estate loans were office  buildings - $424
million and retail facilities - $370 million.

Residential  mortgage loans,  excluding  mortgage loans held for sale,  included
$397  million of home  equity  loans,  $445  million of loans held for  business
relationship  purposes,  $310  million of  adjustable  rate  mortgages  and $158
million of loans held for community  development.  We have no  concentration  in
sub-prime  residential  mortgage loans.  Consumer loans included $492 million of
indirect automobile loans.  Indirect auto loans have increased $29 million since
December 31, 2006. Approximately $393 million of these loans were purchased from
dealers in Oklahoma  and $99 million was  purchased  from  dealers in  Arkansas.
Growth during the quarter included $19 million from indirect lending  activities
in Arkansas and $10 million in Oklahoma.

Table 16  presents  the  distribution  of the major  loan  categories  among our
primary market areas.

 19


---------------------------------------------------------------------------------------------------------------------
Table 16 - Loans by Principal Market Area
(In thousands)

                                         March 31,        Dec. 31,       Sept. 30,        June 30,        March 31,
                                           2007             2006           2006             2006            2006
                                    ---------------------------------------------------------------------------------
Oklahoma:
                                                                                        
   Commercial                        $   3,377,819    $   3,261,592   $   3,078,849   $   3,119,736    $   2,981,660
   Commercial real estate                  895,585          979,251         968,267         995,953          925,703
   Residential mortgage                    945,147          896,567         878,390         854,723          847,517
   Residential mortgage held for sale       75,011           64,625          58,031          54,026           40,299
   Consumer                                509,787          512,032         502,622         479,508          468,920
                                    ---------------------------------------------------------------------------------
     Total Oklahoma                  $   5,803,349    $   5,714,067   $   5,486,159   $   5,503,946    $   5,264,099
                                    ---------------------------------------------------------------------------------
Texas:
   Commercial                        $   1,797,262    $   1,722,627   $   1,557,361   $   1,548,545    $   1,420,860
   Commercial real estate                  721,207          670,635         639,327         669,698          604,413
   Residential mortgage                    216,087          213,801         212,114         212,987          200,957
   Consumer                                105,604           95,652          80,836          84,212           87,669
                                    ---------------------------------------------------------------------------------
     Total Texas                     $   2,840,160    $   2,702,715   $   2,489,638   $   2,515,442    $   2,313,899
                                    ---------------------------------------------------------------------------------
New Mexico:
   Commercial                        $     424,539    $     411,272   $     387,164   $     334,984    $     348,930
   Commercial real estate                  279,203          257,079         219,966         237,020          228,955
   Residential mortgage                     77,800           75,159          76,858          73,281           68,810
   Consumer                                 11,493           13,256          13,899          13,404           13,820
                                    ---------------------------------------------------------------------------------
     Total New Mexico                $     793,035    $     756,766   $     697,887   $     658,689    $     660,515
                                    ---------------------------------------------------------------------------------
Arkansas:
   Commercial                        $      96,084    $      95,483   $      89,849   $      80,539    $      74,423
   Commercial real estate                   97,190           94,395          91,158          87,080           80,529
   Residential mortgage                     21,825           23,076          21,923          15,067           13,069
   Consumer                                103,662           86,017          67,206          51,166           33,548
                                    ---------------------------------------------------------------------------------
     Total Arkansas                  $     318,761    $     298,971   $     270,136   $     233,852    $     201,569
                                    ---------------------------------------------------------------------------------
Colorado:
   Commercial                        $     457,758    $     451,046   $     353,657   $     299,380    $     267,928
   Commercial real estate                  199,736          193,747         170,081         155,453          134,771
   Residential mortgage                     15,501           15,812          17,656          21,113           20,383
   Consumer                                 17,746           26,591          32,647          31,939           31,487
                                    ---------------------------------------------------------------------------------
     Total Colorado                  $     690,741    $     687,196   $     574,041   $     507,885    $     454,569
                                    ---------------------------------------------------------------------------------
Arizona:
   Commercial                        $     120,351    $      96,453   $      76,013   $      63,019    $      52,274
   Commercial real estate                  316,661          207,035         196,286         153,870          120,262
   Residential mortgage                     41,731           31,280          34,772          33,913           26,270
   Consumer                                  8,654            5,947           5,737           6,511            5,098
                                    ---------------------------------------------------------------------------------
     Total Arizona                   $     487,397    $     340,715   $     312,808   $     257,313    $     203,904
                                    ---------------------------------------------------------------------------------
Kansas:
   Commercial                        $     168,543    $     170,411   $     134,683   $      93,115    $      92,746
   Commercial real estate                   41,065           44,398          40,074          23,862           10,327
   Residential mortgage                        200              564             480             364              331
   Consumer                                     43                -               -               -                -
                                    ---------------------------------------------------------------------------------
     Total Kansas                    $     209,851    $     215,373   $     175,237   $     117,341    $     103,404
                                    ---------------------------------------------------------------------------------
Total BOK Financial loans            $  11,143,294    $  10,715,803   $  10,005,906   $   9,794,468    $   9,201,959
                                    ---------------------------------------------------------------------------------



Loan Commitments

BOK Financial enters into certain  off-balance sheet  arrangements in the normal
course of business.  These arrangements  included loan commitments which totaled
$5.3 billion and standby  letters of credit which  totaled $517 million at March
31, 2007. Loan commitments may be unconditional obligations to provide financing
or conditional  obligations that

 20

depend on the borrower's financial condition, collateral value or other factors.
Standby  letters  of credit  are  unconditional  commitments  to  guarantee  the
performance  of our customer to a third party.  Since some of these  commitments
are expected to expire before being drawn upon, the total commitment  amounts do
not necessarily represent future cash requirements.

Derivatives with Credit Risk

BOK Financial  offers programs that permit its customers to hedge various risks,
including  fluctuations in energy and cattle prices,  interest rates and foreign
exchange  rates,  or to take  positions in derivative  contracts.  Each of these
programs  work  essentially  the same way.  Derivative  contracts  are  executed
between the  customers  and BOK  Financial.  Offsetting  contracts  are executed
between the Company and  selected  counterparties  to minimize the risk to us of
changes in commodity  prices,  interest  rates, or foreign  exchange rates.  The
counterparty  contracts  are identical to the customer  contracts,  except for a
fixed  pricing  spread or a fee paid to us as  compensation  for  administrative
costs, credit risk and profit.

The Company adopted Statement of Financial  Accounting  Standards No. 157, "Fair
Value  Measurement"  (FAS 157") as of January 1,  2007.  FAS 157  established  a
single authoritative definition of fair value, set out a framework for measuring
fair value and required additional disclosures about fair value measurements. It
also nullified EITF guidance that  prohibited  recognition of gains at inception
for derivative transactions whose fair value is estimated by modeling.

Beginning  January 1, 2007,  the fair value of  customer  derivative  assets and
liabilities  fully reflects the discounted  cash flows based on forward  curves,
volatilities,  credit risks and other  market-observable  inputs. Changes in the
net fair values of customer  derivative  contracts  are a component of Brokerage
and Trading Revenue.  Retained  earnings were charged $1.1 million for effect of
the initial adoption of FAS 157 on the fair value of customer  derivative assets
and liabilities.

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

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

A  deterioration  of the  credit  standing  of one or more of the  customers  or
counterparties to these contracts may result in BOK Financial recognizing a loss
as the fair value of the  affected  contracts  may no longer move in tandem with
the  offsetting  contracts.  This  could  occur if the  credit  standing  of the
customer  or  counterparty  deteriorated  such  that  either  the fair  value of
underlying  collateral no longer  supported  the contract or the  counterparty's
ability to provide margin collateral was impaired.

Derivative  contracts  are carried at fair value.  At March 31,  2007,  the fair
value of derivative  contracts  reported as assets under these programs  totaled
$219 million.  This included energy  contracts with fair values of $179 million,
interest  rate  contracts  with fair values of $25 million and foreign  exchange
contracts  with  fair  values  of $13  million.  The  aggregate  fair  values of
derivative contracts reported as liabilities totaled $230 million. Approximately
97% of the fair value of asset contracts was with customers.  The credit risk of
these contracts is generally backed by energy  production.  The remaining 3% was
with dealer  counterparties.  The maximum net exposure to any single customer or
counterparty totaled $35 million.


Summary of Loan Loss Experience

The reserve for loan losses, which is available to absorb losses inherent in the
loan  portfolio,  totaled  $114 million at March 31,  2007,  compared  with $109
million at December 31, 2006 and $104 million at March 31, 2006.  These  amounts
represented 1.03%,  1.03% and 1.14% of outstanding  loans,  excluding loans held
for sale, at March 31, 2007, December 31, 2006 and March 31, 2006, respectively.
Losses on loans  held for  sale,  principally  mortgage  loans  accumulated  for
placement into security pools, are charged to earnings through adjustment in the
carrying value. The

 21

reserve  for  loan  losses  also  represented  365% of  outstanding  balance  of
non-accruing  loans at March 31, 2007,  compared  with 420% at December 31, 2006
and 323% at March 31, 2006.  Non-accruing loans totaled $31 million at March 31,
2007,  compared  with $26 million at December  31, 2006 and $32 million at March
31, 2006.  Net loans  charged off during the first  quarter of 2007 totaled $3.1
million,  up from $2.8 million in the preceding quarter and $1.6 million for the
first quarter of 2006.

The Company considers credit risk from loan commitments and letters of credit in
its  evaluation  of the  adequacy  of the reserve  for loan  losses.  A separate
reserve for off-balance  sheet credit risk is maintained.  Table 17 presents the
trend of reserves  for  off-balance  sheet  credit  losses and the  relationship
between the reserve and loan commitments.  The relationship between the combined
reserve for credit losses and outstanding  loans is also presented to facilitate
comparison  with peer  banks and  others  who have not  adopted  this  preferred
presentation.  The provision for credit losses  included the combined  charge to
expense for both the  reserve  for loan  losses and the reserve for  off-balance
sheet credit losses. All losses incurred from lending activities will ultimately
be reflected in charge-offs  against the reserve for loan losses following funds
advanced against outstanding  commitments and after the exhaustion of collection
efforts.  The reserve for off-balance sheet credit losses would decrease and the
reserve for loan losses would increase as outstanding commitments are funded.



------------------------------------------------------------------------------------------------------------------------------
Table 17 - Summary of Loan Loss Experience
(In thousands)
                                                                           Three Months Ended
                                            ----------------------------------------------------------------------------------
                                                 March 31,        Dec. 31,       Sept. 30,        June 30,        March 31,
                                                   2007             2006           2006            2006             2006
                                            ----------------------------------------------------------------------------------
Reserve for loan losses:
                                                                                               
Beginning balance                           $     109,497     $     105,465   $     104,525  $     104,143    $     103,876
   Loans charged off:
      Commercial                                    3,123             2,202           4,550          2,523            1,242
      Commercial real estate                           30                87               -              -                -
      Residential mortgage                            124               465             230            363              207
      Consumer                                      3,110             3,113           3,319          2,995            2,700
------------------------------------------------------------------------------------------------------------------------------
      Total                                         6,387             5,867           8,099          5,881            4,149
------------------------------------------------------------------------------------------------------------------------------
   Recoveries of loans previously charged off:
      Commercial                                    1,471             1,853           1,985            720              847
      Commercial real estate                           41                 5             276              6               40
      Residential mortgage                            189                25              19             20               97
      Consumer                                      1,567             1,196           1,523          1,339            1,580
------------------------------------------------------------------------------------------------------------------------------
      Total                                         3,268             3,079           3,803          2,085            2,564
------------------------------------------------------------------------------------------------------------------------------
Net loans charged off                               3,119             2,788           4,296          3,796            1,585
Provision for loan losses                           7,993             6,820           5,236          4,178            1,852
------------------------------------------------------------------------------------------------------------------------------
Ending balance                              $     114,371     $     109,497   $     105,465  $     104,525    $     104,143
------------------------------------------------------------------------------------------------------------------------------
Reserve for off-balance sheet credit losses:
Beginning balance                           $      20,890     $      21,757   $      21,739  $      22,122    $      20,574
Provision for off-balance sheet credit losses      (1,493)             (867)             18           (383)           1,548
------------------------------------------------------------------------------------------------------------------------------
Ending balance                              $      19,397     $      20,890   $      21,757  $      21,739    $      22,122
------------------------------------------------------------------------------------------------------------------------------
Total provision for credit losses           $       6,500     $       5,953   $       5,254  $       3,795    $       3,400
------------------------------------------------------------------------------------------------------------------------------
Reserve for loan losses to loans
    outstanding at period-end (1)                    1.03%             1.03%           1.06%          1.07%            1.14%
Net charge-offs (annualized)
    to average loans (1)                             0.12              0.11            0.18           0.16             0.07
Total provision for credit losses
    (annualized) to average loans (1)                0.24              0.23            0.22           0.16             0.15
Recoveries to gross charge-offs                     51.17             52.48           46.96          35.45            61.80
Reserve for loan losses as a multiple of
    net charge-offs (annualized)                     9.17x             9.82x           6.14x          6.88x           16.43x
Reserve for off-balance sheet credit
    losses to off-balance sheet credit commitments   0.34%             0.36%           0.40%          0.41%            0.36%
Combined reserves for credit losses to
    loans outstanding at period-end (1)              1.21              1.22            1.28           1.30             1.38
------------------------------------------------------------------------------------------------------------------------------
(1) Excludes residential mortgage loans held for sale.


Specific  impairment  reserves are  determined  through  evaluation of estimated
future cash flows and collateral value. At March 31, 2007,  specific  impairment
reserves  totaled $2.4 million on total impaired loans of $24 million.  Required
specific impairment reserves were $1.7 million at December 31, 2006.

 22

Nonspecific  reserves are  maintained  for risks beyond  factors  specific to an
individual  loan or those  identified  through  migration  analysis.  A range of
potential  losses is determined for each risk factor  identified.  The ranges of
potential losses for the more significant factors were:


                                            March 31, 2007                    December 31, 2006
                                                                    
General economic conditions            $4.2 million to $8.4 million      $5.2 million to $9.1 million
Concentration in large loans           $1.4 million to $2.8 million      $1.4 million to $2.8 million


The provision  for credit  losses  totaled $6.5 million for the first quarter of
2007, compared with $6.0 million for the fourth quarter of 2006 and $3.4 million
for the first quarter of 2006.  Factors  considered in determining the provision
for credit losses included  continued growth in outstanding  loans and increases
in net losses and non-accruing loans during the quarter.


Nonperforming Assets

Information  regarding  nonperforming assets, which totaled $41 million at March
31,  2007 and $36  million at  December  31,  2006,  is  presented  in Table 18.
Nonperforming  assets included  non-accrual  loans and excluded loans 90 days or
more past due but still accruing interest. Non-accrual loans totaled $31 million
at March 31,  2007 and $26  million  at  December  31,  2006.  Newly  identified
non-accruing  loans  totaled  $9.6  million  during  the first  quarter of 2007.
Non-accruing  loans  decreased $2.2 million for loans charged off or foreclosed,
and $930 thousand for cash payments received.  Loans past due but still accruing
at March 31, 2007 included  $15.1 million from one matured loan whose renewal is
pending due to administrative matters.



----------------------------------------------------------------------------------------------------------------------
Table 18 - Nonperforming Assets
(In thousands)
                                                   March 31,      Dec. 31,      Sept. 30,    June 30,      March 31,
                                                     2007           2006          2006         2006          2006
                                               -----------------------------------------------------------------------
Nonaccrual loans:
                                                                                         
   Commercial                                   $    14,218   $    10,737    $    15,061  $    15,087   $    17,073
   Commercial real estate                             6,832         4,771          3,540        4,369         6,444
   Residential mortgage                               9,920        10,325          7,889        7,604         8,057
   Consumer                                             364           222          3,986        3,916           655
----------------------------------------------------------------------------------------------------------------------
   Total nonaccrual loans                            31,334        26,055         30,476       30,976        32,229
----------------------------------------------------------------------------------------------------------------------
Renegotiated loans                                      964         1,111          1,064            -             -
Other nonperforming assets                            8,414         8,486          9,322        8,257         8,196
----------------------------------------------------------------------------------------------------------------------
   Total nonperforming assets                   $    40,712   $    35,652    $    40,862  $    39,233   $    40,425
----------------------------------------------------------------------------------------------------------------------
Ratios:
 Reserve for loan losses to nonaccrual loans        365.01%       420.25%        346.06%      337.44%       323.13%
 Combined reserves for credit
    losses to nonaccrual loans                      426.91        500.43         417.45       407.62        391.77
 Nonaccrual loans to period-end loans (2)             0.28          0.24           0.31         0.32          0.35
----------------------------------------------------------------------------------------------------------------------
Loans past due (90 days)  (1)                  $    20,623   $     5,945     $    5,076   $    9,630   $     3,919
----------------------------------------------------------------------------------------------------------------------
(1)  Includes residential mortgages
     guaranteed by agencies of the U.S.
     Government.                               $     1,728   $     2,233    $     1,784  $     2,310   $     1,595
(2) Excludes residential mortgage loans held for sale.
----------------------------------------------------------------------------------------------------------------------



The loan review process also identifies  loans that possess more than the normal
amount of risk due to deterioration  in the financial  condition of the borrower
or the value of the  collateral.  Because the borrowers are still  performing in
accordance  with  the  original  terms of the  loan  agreements,  and no loss of
principal  or interest  is  anticipated,  these  loans were not  included in the
Nonperforming  Assets table. Known information does,  however,  cause management
concern as to the  borrowers'  ability to comply with current  repayment  terms.
These potential problem loans totaled $27 million at

 23

March 31, 2007 and $22 million at December 31, 2006.  Potential problem loans by
primary   industry   included   healthcare  -  $11  million,   residential  home
construction - $7 million,  other real estate loans - $5 million,  services - $2
million and manufacturing - $2 million.

Deposits

Deposit accounts represent our primary funding source. We compete for retail and
commercial  deposits  by offering a broad range of  products  and  services  and
focusing on customer convenience. Retail deposit growth is supported through our
Perfect  Banking  program,  free  checking  and  on-line  Billpay  services,  an
extensive  network of branch  locations and ATMs and a 24-hour Express Bank call
center.  Commercial deposit growth is supported by offering treasury  management
and lockbox services.

Total  deposits  averaged  $12.1  billion for the first quarter of 2007, up $255
million,  or 9% annualized  compared with average deposits in the fourth quarter
of 2006.  Average  commercial  deposits increased $156 million or 16% annualized
primarily  due  to  a  $117  million  increase  in  Oklahoma.  Average  deposits
attributed  to consumer  banking  increased  $52 million.  Consumer  deposits in
Colorado and New Mexico  increased  $29 million and $14  million,  respectively.
Average deposits  attributed to trust and private financial  services  increased
$38 million or 10% annualized.  Average deposits attributed to mortgage banking,
which  consisted  primarily of escrow  funds,  decreased  $19 million due to the
timing of property tax payments.

Core  deposits,  which we define as  deposits of less than  $100,000,  excluding
public funds and brokered deposits,  averaged $5.8 billion for the first quarter
of 2007, an annualized  increase of 12% over the fourth quarter of 2006. Average
core  deposits  comprised  48% of total  deposits for the first quarter of 2007.
Deposit  accounts with  balances in excess of $100,000  averaged $5.1 billion or
42% of total average  deposits,  unchanged from the preceding  quarter.  Average
public funds increased $81 million or 56% annualized from seasonal changes based
on the timing of tax receipts.

The  distribution  of deposit  accounts among our principal  markets is shown in
Table 19.

 24


---------------------------------------------------------------------------------------------------------------------
Table 19 - Deposits by Principal Market Area
(In thousands)
                                         March 31,        Dec. 31,       Sept. 30,        June 30,        March 31,
                                           2007            2006            2006             2006            2006
                                    ---------------------------------------------------------------------------------
Oklahoma:
                                                                                        
   Demand                            $     877,623   $      915,101   $     868,502   $     908,034    $     950,582
   Interest-bearing:
     Transaction                         3,481,859        3,456,322       3,001,774       2,732,312        2,937,228
     Savings                                92,678           83,017          83,442          88,218           93,093
     Time                                2,556,423        2,595,890       2,621,522       2,662,770        2,623,352
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                6,130,960        6,135,229       5,706,738       5,483,300        5,653,673
                                    ---------------------------------------------------------------------------------
     Total Oklahoma                  $   7,008,583   $    7,050,330   $   6,575,240   $   6,391,334    $   6,604,255
                                    ---------------------------------------------------------------------------------
Texas:
   Demand                            $     602,315   $      640,159   $     582,014   $     638,157    $     551,411
   Interest-bearing:
     Transaction                         1,701,382        1,688,131       1,671,993       1,530,491        1,455,856
     Savings                                24,558           24,074          25,888          26,370           27,827
     Time                                  682,292          829,255         736,316         717,027          726,530
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                2,408,232        2,541,460       2,434,197       2,273,888        2,210,213
                                    ---------------------------------------------------------------------------------
     Total Texas                     $   3,010,547   $    3,181,619   $   3,016,211   $   2,912,045    $   2,761,624
                                    ---------------------------------------------------------------------------------
New Mexico:
   Demand                            $     126,111   $      124,088   $     144,138   $     147,307    $     159,125
   Interest-bearing:
     Transaction                           464,569          432,342         434,521         410,166          408,160
     Savings                                17,972           16,417          16,804          16,860           17,805
     Time                                  485,662          490,460         481,993         494,426          483,428
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                  968,203          939,219         933,318         921,452          909,393
                                    ---------------------------------------------------------------------------------
     Total New Mexico                $   1,094,314   $    1,063,307   $   1,077,456   $   1,068,759    $   1,068,518
                                    ---------------------------------------------------------------------------------
Arkansas:
   Demand                            $      10,980   $       12,589   $      11,914   $      11,521    $      11,629
   Interest-bearing:
     Transaction                            21,762           17,905          19,504          20,577           26,675
     Savings                                 1,029            1,010           1,058           1,072            1,051
     Time                                   54,687           57,446          61,966          69,418           73,082
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                   77,478           76,361          82,528          91,067          100,808
                                    ---------------------------------------------------------------------------------
     Total Arkansas                  $      88,458   $       88,950   $      94,442   $     102,588    $     112,437
                                    ---------------------------------------------------------------------------------
Colorado:
   Demand                            $      39,821   $       48,756   $      38,264   $      45,214    $      56,419
   Interest-bearing:
     Transaction                           314,506          328,254         275,714         245,504          258,801
     Savings                                12,092           12,632          13,037          13,786           16,315
     Time                                  502,880          485,200         421,841         379,239          309,068
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                  829,478          826,086         710,592         638,529          584,184
                                    ---------------------------------------------------------------------------------
     Total Colorado                  $     869,299   $      874,842   $     748,856   $     683,743    $     640,603
                                    ---------------------------------------------------------------------------------
Arizona:
   Demand                            $      29,461   $       39,352   $      62,234   $      73,696    $      55,421
   Interest-bearing:
     Transaction                            67,364           73,729          74,786          67,841           57,400
     Savings                                 1,367            1,978           2,408           2,702            3,380
     Time                                   10,018            6,574           4,549           4,077            4,608
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                   78,749           82,281          81,743          74,620           65,388
                                    ---------------------------------------------------------------------------------
     Total Arizona                   $     108,210   $      121,633   $     143,977   $     148,316    $     120,809
                                    ---------------------------------------------------------------------------------
Kansas:
   Demand                            $         325   $           14   $          -    $           -    $          -
   Interest-bearing:
     Transaction                               670              287              -                -               -
     Savings                                    11                2              -                -               -
     Time                                   28,166            5,721              -                -               -
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                   28,847            6,010              -                -               -
                                    ---------------------------------------------------------------------------------
     Total Kansas                    $      29,172   $        6,024   $          -    $           -    $          -
                                    ---------------------------------------------------------------------------------
Total BOK Financial deposits         $  12,208,583   $   12,386,705   $  11,656,182   $  11,306,785    $  11,308,246
                                    ---------------------------------------------------------------------------------


 25

Borrowings and Capital

BOK Financial  (parent company) has a $100 million  unsecured  revolving line of
credit  with  certain  banks  that  expires  in  December  2010.  There  was  no
outstanding  principal  balance  on this  credit  agreement  at March 31,  2007.
Interest  is based on LIBOR  plus a defined  margin  that is  determined  by the
Company's  credit  rating or a base rate.  This  margin  ranges  from  0.375% to
1.125%.  The margin  currently  applicable  to  borrowings  against this line is
0.375%.  The base rate is defined as the greater of the daily federal funds rate
plus 0.500% or the 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 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 and to exceed minimum net
worth ratios.  BOK Financial met all of the  restrictive  covenants at March 31,
2007.

The primary source of liquidity for BOK Financial is dividends  from  subsidiary
banks,  which are limited by various  banking  regulations  to net  profits,  as
defined,  for the  preceding  two years.  Dividends  are further  restricted  by
minimum capital  requirements.  Based on the most restrictive  limitations,  the
subsidiary  banks  could  declare  up  to  $130  million  of  dividends  without
regulatory  approval.  Management  has  developed and the Board of Directors has
approved an internal capital policy that is more restrictive than the regulatory
capital  standards.  The subsidiary  banks could declare  dividends of up to $55
million under this policy.

Equity capital for BOK Financial  totaled $1.8 billion at March 31, 2007, up $65
million during the quarter.  Retained  earnings,  net income less cash dividends
provided $43 million of the increase.  Accumulated  other  comprehensive  losses
decreased $17 million due primarily to a reduction in net  unrealized  losses on
available for sale  securities.  Employee  stock option  transactions  increased
equity capital $7.6 million during the first quarter of 2007.

Capital is managed to  maximize  long-term  value to the  shareholders.  Factors
considered in managing  capital include  projections of future  earnings,  asset
growth  and   acquisition   strategies,   and   regulatory   and  debt  covenant
requirements.  Capital management may include subordinated debt issuance,  share
repurchase and stock and cash dividends.

On April 26, 2005, the Board of Directors authorized a share repurchase program,
which  replaced a  previously  authorized  program.  The  maximum of two million
common  shares  may be  repurchased.  The  specific  timing and amount of shares
repurchased will vary based on market conditions, securities law limitations and
other  factors.  Repurchases  may be made over time in open market or  privately
negotiated   transactions.   The   repurchase   programs  may  be  suspended  or
discontinued at any time without prior notice. During the first quarter of 2007,
the Company  repurchased  25,000 common shares at an average price of $50.24 per
share.  The Company may repurchase 1.7 million common shares in the future under
this program.

Cash  dividends of $10.1  million or $0.15 per common share were paid during the
first  quarter  of 2007.  On April  24,  2007 the  Board of  Directors  approved
quarterly cash dividend of $0.20 per common share.  The dividend will be payable
on or about May 30 to shareholders of record on May 15, 2007.

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

Subsequent to March 31, 2007, the Company's  Board of Directors  authorized Bank
of Oklahoma to issue up to $250 million of  subordinated  debt.  The proceeds of
this debt,  which qualifies as Tier 2 regulatory  capital,  will be used to fund
the Worth Bancorporation acquisition and continued asset growth.

For a banking institution to qualify as well capitalized,  its Tier 1, Total and
Leverage  capital ratios must be at least 6%, 10% and 5%,  respectively.  All of
the Company's banking  subsidiaries  exceeded the regulatory  definition of well
capitalized.  The capital ratios for BOK Financial on a  consolidated  basis are
presented in Table 20.

 26


--------------------------------------------------------------------------------------------------------------------
Table 20 - Capital Ratios                    March 31,       Dec. 31,      Sept. 30,      June 30,      March 31,
                                               2007            2006           2006          2006          2006
                                          --------------------------------------------------------------------------
Average shareholders' equity
                                                                                            
  to average assets                            9.71%           9.67%          9.62%          9.49%         9.51%
Risk-based capital:
  Tier 1 capital                               9.97            9.78           9.99          10.00         10.16
  Total capital                               11.76           11.58          12.07          12.14         12.41
Leverage                                       8.95            8.79           8.88           8.74          8.60


Off-Balance Sheet Arrangements

During 2002, BOK Financial  agreed to a limited price  guarantee on a portion of
the common  shares  issued to  purchase  Bank of  Tanglewood.  Any holder of BOK
Financial common shares issued in this acquisition may annually make a claim for
the excess of the  guaranteed  price over 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 final  anniversary  date of this guarantee is October 25,
2007.  The maximum annual number of shares subject to this guarantee is 210,069.
The price guarantee is non-transferable  and  non-cumulative.  BOK Financial may
elect, in its sole discretion,  to issue additional shares of common stock or to
pay cash to satisfy any obligation under the price  guarantee.  The Company will
have no obligation to issue additional  common shares or pay cash to satisfy any
benchmark  price  protection  obligation  if the  market  value per share of BOK
Financial common stock remains above the highest benchmark price of $42.53.  The
closing  price of BOK  Financial  common  stock on March 31, 2007 was $49.53 per
share.

Market Risk

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

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 /  Liability
Committee  that operates  under policy  guidelines  established  by the Board of
Directors. The acceptable negative variation in net interest revenue, net income
or economic value of equity due to a specified  basis point increase or decrease
in interest  rates is generally  limited by these  guidelines to +/- 10%.  These
guidelines also set maximum levels for short-term borrowings, short-term assets,
public funds, and brokered deposits,  and establish minimum levels for unpledged
assets,  among  other  things.  Compliance  with these  guidelines  is  reviewed
monthly.

Interest Rate Risk - Other than Trading

BOK Financial  has a large portion of its earning  assets in variable rate loans
and a large portion of its  liabilities in demand deposit  accounts and interest
bearing  transaction  accounts.  Changes in interest rates affect earning assets
more rapidly than interest bearing liabilities in the short term. Management has
adopted  several  strategies  to  position  the  balance  sheet to be neutral to
interest rate changes.  As previously  noted in the Net Interest Revenue section
of this report,  management acquires securities that are funded by borrowings in
the capital markets.  The average duration of these securities is expected to be
approximately  2.5  years  based on a range  of  interest  rate  and  prepayment
assumptions.

BOK  Financial  also uses  interest  rate swaps in managing  its  interest  rate
sensitivity. These products are generally used to more closely match interest on
certain  variable-rate loans with funding sources and long-term  certificates of
deposit  with earning  assets.  During the first  quarter of 2007,  net interest
revenue  was  reduced  by  $2.8  million  from  periodic  settlements  of  these
contracts.  Net interest  revenue was  decreased  by $2.3 million from  periodic
settlements of these

 27

contracts  in the first  quarter of 2006.  These  contracts  are  carried on the
balance sheet at fair value and changes in fair value are reporting in income as
derivatives  gains or losses.  A net gain of $71 thousand was  recognized in the
first quarter of 2007 compared to a net loss of $ 309 thousand in same period of
2006 from  adjustments  of these  swaps and hedged  liabilities  to fair  value.
Credit risk from interest rate swaps is closely monitored as part of our overall
process of managing credit exposure to other financial institutions.

The effectiveness of these strategies in managing the overall interest rate risk
is evaluated through the use of an asset/liability model. BOK Financial performs
a sensitivity  analysis to identify more dynamic  interest rate risk  exposures,
including  embedded option positions,  on net interest  revenue,  net income and
economic value of equity.  A simulation  model is used to estimate the effect of
changes in interest rates over the next 12 and 24 months based on eight interest
rate  scenarios.  Two  specified  interest  rate  scenarios are used to evaluate
interest  rate risk against  policy  guidelines.  The first  scenario  assumes a
sustained  parallel 200 basis point  increase and the second assumes a sustained
parallel 200 basis point decrease in interest rates. The Company also performs a
sensitivity  analysis  based on a "most likely"  interest rate  scenario,  which
includes non-parallel shifts in interest rates. An independent source is used to
determine the most likely interest rate scenario.

The Company's  primary interest rate exposures  included the Federal Funds rate,
which affects short-term borrowings, and the prime lending rate and LIBOR, which
are the basis for much of the variable-rate loan pricing. Additionally, mortgage
rates directly affect the prepayment speeds for  mortgage-backed  securities and
mortgage servicing rights.  Derivative financial instruments and other financial
instruments   used  for  purposes  other  than  trading  are  included  in  this
simulation.  The model incorporates assumptions regarding the effects of changes
in interest rates and account balances on indeterminable maturity deposits based
on a combination  of historical  analysis and expected  behavior.  The impact of
planned  growth and new  business  activities  is factored  into the  simulation
model.  The  effects  of  changes  in  interest  rates on the value of  mortgage
servicing  rights are excluded from Table 21 due to the extreme  volatility over
such a large rate range.  The effects of interest  rate  changes on the value of
mortgage  servicing  rights and  securities  identified  as economic  hedges are
presented in the Lines of Business - Mortgage Banking section of this report.

The results of our interest rate sensitivity analysis, as presented in Table 21,
indicate  that over the past year,  the Company has shifted from being  slightly
asset sensitive to slightly liability sensitive. This means that rising interest
rates will modestly  increase the cost of our  interest-bearing  liabilities  by
more than they will  increase the yield on our earning  assets.  We believe that
this shift is due to an increase in the  frequency  of which  deposit  customers
will switch account types or financial institutions as interest rates rise.

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


Table 21 - Interest Rate Sensitivity
 (Dollars in Thousands)
                                      200 bp Increase                200 bp Decrease                Most Likely
                                 --------------------------    ---------------------------    -------------------------
                                     2007         2006            2007          2006             2007         2006
                                 ------------- ------------    ------------ --------------    ------------ ------------
Anticipated impact over the
   next twelve months on
                                                                                            
   net interest revenue           $ (4,733)     $  6,413         $ 1,407     $   (4,174)       $   1,404      $  3,889
                                      (0.8)%         1.2%            0.2%          (0.8)%            0.2%          0.7%
-------------------------------- --------------- ------------ --- ----------- -------------- -- ----------- ------------


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,  corporate debt and
financial  futures  for its own  account.  These

 28

positions are taken with the objective of generating  trading  profits.  Both of
these activities involve interest rate risk.

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

Management  uses a Value at Risk ("VAR")  methodology to measure the market risk
inherent in its trading  activities.  VAR is  calculated  based upon  historical
simulations  over the past five years  using a variance /  covariance  matrix of
interest rate changes.  It represents an amount of market loss that is likely to
be exceeded only one out of every 100 two-week  periods.  Trading  positions are
managed within guidelines  approved by the Board of Directors.  These guidelines
limit the VAR to $1.8 million. At March 31, 2007, the VAR was $652 thousand. The
greatest value at risk during the quarter was $974 thousand.


Controls and Procedures

As required by Rule 13a-15(b),  BOK Financial's management,  including the Chief
Executive Officer and Chief Financial Officer, conducted an evaluation as of the
end of the period covered by their report, of the effectiveness of the company's
disclosure  controls and  procedures as defined in Exchange Act Rule  13a-15(e).
Based on that  evaluation,  the Chief  Executive  Officer  and  Chief  Financial
Officer concluded that the disclosure  controls and procedures were effective as
of the end of the period covered by this report.  As required by Rule 13a-15(d),
BOK  Financial's  management,  including the Chief  Executive  Officer and Chief
Financial  Officer,  also  conducted an  evaluation  of the  company's  internal
controls  over  financial  reporting to determine  whether any changes  occurred
during the quarter covered by this report that have materially affected,  or are
reasonably  likely to materially  affect,  the company's  internal controls over
financial  reporting.  Based on that  evaluation,  there has been no such change
during the quarter covered by this report.


Forward-Looking Statements

This report contains  forward-looking  statements that are based on management's
beliefs, assumptions, current expectations, estimates, and projections about BOK
Financial,  the financial  services  industry and the economy in general.  Words
such as "anticipates," "believes," "estimates," "expects," "forecasts," "plans,"
"projects,"  variations  of such words and similar  expressions  are intended to
identify such forward-looking  statements.  Management judgments relating to and
discussion of the provision and 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 statements are not guarantees of future performance and involve
certain risks,  uncertainties and assumptions that are difficult to predict with
regard to timing, extent, likelihood and degree of occurrence. Therefore, actual
results and outcomes may materially differ from what is expressed,  implied,  or
forecasted in such  forward-looking  statements.  Internal and external  factors
that might  cause such a  difference  include,  but are not  limited to: (1) the
ability to fully realize  expected cost savings from mergers within the expected
time frames, (2) the ability of other companies on which BOK Financial relies to
provide  goods and  services  in a timely and  accurate  manner,  (3) changes in
interest  rates and  interest  rate  relationships,  (4) demand for products and
services,  (5) the  degree of  competition  by  traditional  and  nontraditional
competitors,  (6) changes in banking regulations,  tax laws, prices, levies, and
assessments, (7) the impact of technological advances and (8) trends in customer
behavior  as well as  their  ability  to  repay  loans.  BOK  Financial  and its
affiliates undertake no obligation to update, amend, or clarify  forward-looking
statements, whether as a result of new information, future events or otherwise.

 29


------------------------------------------------------------- ----- ----------- --- --------------
Consolidated Statements of Earnings (Unaudited)
(In Thousands Except Share and Per Share Data)
                                                                         Three Months Ended
                                                                              March 31,
                                                                       2007             2006
                                                                    ----------- --- --------------
Interest Revenue
                                                                           
Loans                                                            $    212,825    $    165,927
Taxable securities                                                     57,594          55,046
Tax-exempt securities                                                   3,028           2,209
------------------------------------------------------------- ----- ----------- --- --------------
   Total securities                                                    60,622          57,255
------------------------------------------------------------- ----- ----------- --- --------------
Trading securities                                                        464             164
Funds sold and resell agreements                                          665             239
------------------------------------------------------------- ----- ----------- --- --------------
   Total interest revenue                                             274,576         223,585
------------------------------------------------------------- ----- ----------- --- --------------
Interest Expense
Deposits                                                               97,872          72,854
Borrowed funds                                                         42,663          28,490
Subordinated debentures                                                 5,203           4,915
------------------------------------------------------------- ----- ----------- --- --------------
   Total interest expense                                             145,738         106,259
------------------------------------------------------------- ----- ----------- --- --------------
Net Interest Revenue                                                  128,838         117,326
Provision for Credit Losses                                             6,500           3,400
------------------------------------------------------------- ----- ----------- --- --------------
Net Interest Revenue After Provision for Credit Losses                122,338         113,926
------------------------------------------------------------- ----- ----------- --- --------------
Other Operating Revenue
Brokerage and trading revenue                                          13,282          13,356
Transaction card revenue                                               20,184          18,508
Trust fees and commissions                                             18,995          17,945
Deposit service charges and fees                                       24,598          23,986
Mortgage banking revenue                                                6,540           6,789
Bank-owned life insurance                                               2,399              63
Other revenue                                                           5,990           9,279
------------------------------------------------------------- ----- ----------- --- --------------
Total fees and commissions                                             91,988          89,926
------------------------------------------------------------- ----- ----------- --- --------------
Gain on sales of assets                                                   694           1,041
Loss on securities, net                                                  (563)         (1,221)
Gain (loss) on derivatives, net                                            71            (309)
------------------------------------------------------------- ----- ----------- --- --------------
Total other operating revenue                                          92,190          89,437
------------------------------------------------------------- ----- ----------- --- --------------
Other Operating Expense
Personnel                                                              78,729          71,232
Business promotion                                                      4,570           4,803
Professional fees and services                                          4,874           3,914
Net occupancy and equipment                                            13,206          13,026
Data processing and communications                                     16,974          16,995
Printing, postage and supplies                                          3,969           3,905
Net losses and operating expenses of repossessed  assets                  207             219
Amortization of intangible assets                                       1,136           1,370
Mortgage banking costs                                                  2,944           3,087
Change in fair value of mortgage servicing rights                       1,164          (7,081)
Other expense                                                           4,739           5,909
------------------------------------------------------------- ----- ----------- --- --------------
Total other operating expense                                         132,512         117,379
------------------------------------------------------------- ----- ----------- --- --------------
Income Before Taxes                                                    82,016          85,984
Federal and state income tax                                           29,223          31,236
------------------------------------------------------------- ----- ----------- --- --------------
Net Income                                                       $     52,793    $     54,748
------------------------------------------------------------- ----- ----------- --- --------------

Earnings Per Share:
------------------------------------------------------------- ----- ----------- --- --------------
   Basic                                                         $      0.79     $       0.82
------------------------------------------------------------- ----- ----------- --- --------------
   Diluted                                                       $      0.78     $       0.81
------------------------------------------------------------- ----- ----------- --- --------------

Average Shares Used in Computation:
------------------------------------------------------------- ---- ------------ --- --------------
   Basic                                                           67,085,310       66,715,396
------------------------------------------------------------- ---- ------------ --- --------------
   Diluted                                                         67,574,671       67,260,659
------------------------------------------------------------- ---- ------------ --- --------------


See accompanying notes to consolidated financial statements.

 30


--------------------------------------------------------------------------------------------------------------------
Consolidated Balance Sheets
(In Thousands Except Share Data)
                                                                    March 31,      December 31,        March 31,
                                                                      2007             2006               2006
                                                                  --------------------------------------------------
                                                                   (Unaudited)     (Footnote 1)         (Unaudited)
Assets
                                                                                          
Cash and due from banks                                        $      559,264    $      775,376    $      610,563
Funds sold and resell agreements                                       13,988            21,950            25,720
Trading securities                                                     46,079            37,076            26,055
Securities:
  Available for sale                                                4,434,600         4,293,938         4,771,401
  Available for sale securities pledged to creditors                  351,716           361,123                 -
  Investment (fair value:  March 31, 2007 - $235,406;
    December 31, 2006 - $246,608;
    March 31, 2006 - $232,468)                                        241,436           248,689           237,224
  Mortgage trading securities                                         131,524           162,837            64,704
--------------------------------------------------------------------------------------------------------------------
    Total securities                                                5,159,276         5,066,587         5,073,329
--------------------------------------------------------------------------------------------------------------------
Loans                                                              11,143,294        10,715,803         9,201,959
Less reserve for loan losses                                         (114,371)         (109,497)         (104,143)
--------------------------------------------------------------------------------------------------------------------
  Loans, net of reserve                                            11,028,923        10,606,306         9,097,816
--------------------------------------------------------------------------------------------------------------------
Premises and equipment, net                                           193,244           188,041           177,959
Accrued revenue receivable                                            111,782           118,236           102,759
Intangible assets, net                                                257,350           258,060           261,652
Mortgage servicing rights, net                                         68,120            65,946            68,608
Real estate and other repossessed assets                                8,414             8,486             8,196
Bankers' acceptances                                                    3,093            43,613            35,315
Derivative contracts                                                  220,120           284,239           401,444
Cash surrender value of bank-owned life insurance                     214,730           212,230             7,658
Receivable on unsettled securities trades                              45,873                 -                 -
Other assets                                                          227,820           373,478           403,695
--------------------------------------------------------------------------------------------------------------------
         Total assets                                          $   18,158,076    $   18,059,624    $   16,300,769
--------------------------------------------------------------------------------------------------------------------

Liabilities and Shareholders' Equity
Noninterest-bearing demand deposits                            $    1,686,636    $    1,780,059    $    1,784,587
Interest-bearing deposits:
  Transaction                                                       6,052,112         5,996,970         5,144,120
  Savings                                                             149,707           139,130           159,471
  Time                                                              4,320,128         4,470,546         4,220,068
--------------------------------------------------------------------------------------------------------------------
  Total deposits                                                   12,208,583        12,386,705        11,308,246
--------------------------------------------------------------------------------------------------------------------
Funds purchased and repurchase agreements                           2,511,210         2,348,516         1,622,185
Other borrowings                                                      852,118           593,731           833,114
Subordinated debentures                                               298,819           297,800           294,130
Accrued interest, taxes and expense                                   108,524           104,752            92,495
Bankers' acceptances                                                    3,093            43,613            35,315
Due on unsettled security transactions                                      -           107,420             2,142
Derivative contracts                                                  236,775           298,679           419,776
Other liabilities                                                     153,006           157,386           127,931
--------------------------------------------------------------------------------------------------------------------
         Total liabilities                                         16,372,128        16,338,602        14,735,334
--------------------------------------------------------------------------------------------------------------------
Shareholders' equity:
Common stock ($.00006 par value; 2,500,000,000 shares authorized;
  shares issued and outstanding: March 31, 2007 - 68,944,949;
  December 31, 2006 - 68,704,575; March 31, 2006 - 68,214,101)              4                 4                 4
Capital surplus                                                       699,488           688,861           666,800
Retained earnings                                                   1,208,418         1,166,994         1,038,859
Treasury stock (shares at cost: March 31, 2007 -  1,717,899;
  December 31, 2006 - 1,636,825;
  March 31, 2006 - 1,331,064)                                         (65,639)          (61,393)          (45,915)
Accumulated other comprehensive loss                                  (56,323)          (73,444)          (94,313)
--------------------------------------------------------------------------------------------------------------------
         Total shareholders' equity                                 1,785,948         1,721,022         1,565,435
--------------------------------------------------------------------------------------------------------------------
         Total liabilities and shareholders' equity            $   18,158,076    $   18,059,624    $   16,300,769
--------------------------------------------------------------------------------------------------------------------

See accompanying notes to consolidated financial statements.

 31


---------------------------------------------------------------------------------------------------------------------------
Consolidated Statements of Changes in
Shareholders' Equity (Unaudited)
(In Thousands)
                                                            Accumulated
                          Preferred Stock    Common Stock      Other                           Treasury Stock
                       ------------------------------------ Comprehensive  Capital Retained --------------------
                         Shares   Amount    Shares   Amount     Loss       Surplus Earnings   Shares    Amount     Total
                       ----------------------------------------------------------------------------------------------------
Balances at
                                                                                    
  December 31, 2005           -   $   -     67,905    $ 4    $ (67,811)   $ 656,579 $990,422   1,202  $(40,040) $1,539,154
Effect of implementing
   FAS 156, net of
   income taxes               -       -          -      -            -            -      383       -         -         383
Comprehensive income:
  Net income                  -       -          -      -            -            -   54,748       -         -       54,748
  Other comprehensive
     income, net of tax (1)   -       -          -      -      (26,502)           -        -       -         -      (26,502)
                                                                                                                 ----------
    Comprehensive income                                                                                             28,246
                                                                                                                 ----------
Treasury stock purchase       -        -         -        -         -          -          -       61    (2,759)     (2,759)
Exercise of stock options     -        -       309        -         -      7,554          -       68    (3,116)      4,438
Tax benefit on exercise of
   stock options              -        -         -        -         -      1,140          -        -         -       1,140
Stock-based compensation      -        -         -        -         -      1,527          -        -         -       1,527
Cash dividends on
  common stock                -        -         -        -         -          -     (6,694)       -         -      (6,694)
---------------------------------------------------------------------------------------------------------------------------

Balances at
    March 31, 2006            -   $    -    68,214   $    4  $(94,313) $ 666,800 $1,038,859    1,331  $(45,915) $1,565,435
---------------------------------------------------------------------------------------------------------------------------

Balances at
  December 31, 2006           -   $    -    68,705   $    4  $(73,444) $ 688,861 $1,166,994    1,637  $(61,393) $1,721,022
Effect of implementing
   FAS 157, net of
   income taxes               -        -         -        -         -          -       (679)       -         -        (679)
Effect of
   implementing FIN 48        -         -        -        -         -          -       (609)       -         -        (609)
Comprehensive income:
   Net income                 -         -        -        -          -         -     52,793        -         -       52,793
   Other comprehensive
    income, net of tax (1)    -         -        -        -     17,121         -          -        -         -       17,121
                                                                                                                 ----------
    Comprehensive income                                                                                             69,914
                                                                                                                 ----------
Treasury stock purchase       -         -        -        -          -         -          -       25    (1,256)      (1,256)
Exercise of stock options     -         -      240        -          -     7,424          -       56    (2,990)       4,434
Tax benefit on exercise
   of stock options           -         -        -        -          -     1,039          -        -         -        1,039
Stock-based compensation      -         -        -        -          -     2,164          -        -         -        2,164
Cash dividends on
   common stock               -         -        -        -          -         -    (10,081)       -         -      (10,081)
---------------------------------------------------------------------------------------------------------------------------

Balances at
    March 31, 2007            -    $    -   68,945   $    4  $ (56,323)$ 699,488 $1,208,418    1,718  $(65,639) $1,785,948
---------------------------------------------------------------------------------------------------------------------------



(1)                                              March 31, 2007     March 31, 2006
Changes in other comprehensive loss:
                                                           
  Unrealized gains (losses) on securities             $ 25,673   $       (42,660)
  Unrealized gains (losses) on cash flow hedges            363              (187)
  Tax (expense) benefit on unrealized
    (gains) losses                                      (9,277)           15,567
  Reclassification adjustment for losses
    realized and included in net income                    563             1,221
  Reclassification adjustment for tax
    benefit on realized losses                            (201)             (443)
                                                --------------------------------------
Net change in other comprehensive loss           $      17,121    $      (26,502)
                                                --------------------------------------


See accompanying notes to consolidated financial statements.

 32


---------------------------------------------------------------------------------------------------------------------------
Consolidated Statements of Cash Flows (Unaudited)
(In Thousands)                                                                        Three Months Ended March 31,
                                                                              ---------------------------------------------
                                                                                      2007                      2006
                                                                              ---------------------------------------------
Cash Flows From Operating Activities:
                                                                                                  
Net income                                                                      $     52,793            $     54,748
Adjustments to reconcile net income to net cash provided by operating
activities:
  Provision for credit losses                                                          6,500                   3,400
  Change in fair value of mortgage servicing rights                                    1,164                  (7,081)
  Unrealized (gains) losses from derivatives                                          (4,370)                  3,358
  Tax benefit on exercise of stock options                                            (1,039)                 (1,140)
  Change in bank-owned life insurance                                                 (2,499)                   (102)
  Stock-based compensation                                                             1,535                   2,536
  Depreciation and amortization                                                        9,555                  10,652
  Net accretion of securities discounts and premiums                                     899                  (1,060)
  Net gain on sale of assets                                                          (2,532)                 (2,469)
  Mortgage loans originated for resale                                              (166,724)               (162,905)
  Proceeds from sale of mortgage loans held for resale                               152,612                 176,147
  Change in trading securities, including mortgage trading securities                 22,666                  (7,422)
  Change in accrued revenue receivable                                                (4,258)                 (2,885)
  Change in other assets                                                              96,241                  11,879
  Change in accrued interest, taxes and expense                                        3,772                   1,416
  Change in other liabilities                                                        (69,384)                (13,996)
---------------------------------------------------------------------------------------------------------------------------
Net cash provided by operating activities                                             96,931                  65,076
---------------------------------------------------------------------------------------------------------------------------
Cash Flows From Investing Activities:
  Proceeds from maturities of investment securities                                   13,978                  10,828
  Proceeds from maturities of available for sale securities                          240,519                 173,249
  Purchases of investment securities                                                  (6,765)                 (2,983)
  Purchases of available for sale securities                                        (814,351)               (271,202)
  Proceeds from sales of available for sale securities                               469,223                  36,576
  Loans originated or acquired net of principal collected                           (392,604)               (149,739)
  Proceeds from derivative asset contracts                                            32,500                   2,340
  Net change in other investment assets                                                8,108                     410
  Proceeds from disposition of assets                                                 42,098                  75,196
  Acquisition of bank charter                                                           (425)                      -
  Purchases of assets                                                                (15,933)                (12,828)
---------------------------------------------------------------------------------------------------------------------------
  Net cash used in investing activities                                             (423,652)               (138,153)
---------------------------------------------------------------------------------------------------------------------------
Cash Flows From Financing Activities:
  Net change in demand deposits, transaction deposits and savings accounts           (27,704)               (189,080)
  Net change in time deposits                                                       (148,705)                122,605
  Net change in other borrowings                                                     421,081                  63,090
  Payments on derivative liability contracts                                         (27,628)                 (1,754)
  Net change in derivative margin accounts                                            44,760                  25,339
  Change in amount receivable (due) on unsettled security transactions              (153,293)                 (6,287)
  Issuance of preferred, common and treasury stock, net                                4,434                   4,438
  Tax benefit on exercise of stock options                                             1,039                   1,140
  Repurchase of common stock                                                          (1,256)                 (2,759)
  Dividends paid                                                                     (10,081)                 (6,694)
---------------------------------------------------------------------------------------------------------------------------
Net cash provided by financing activities                                            102,647                  10,038
---------------------------------------------------------------------------------------------------------------------------
Net decrease in cash and cash equivalents                                           (224,074)                (63,039)
Cash and cash equivalents at beginning of period                                     797,326                 699,322
---------------------------------------------------------------------------------------------------------------------------
Cash and cash equivalents at end of period                                      $    573,252            $    636,283
---------------------------------------------------------------------------------------------------------------------------
Cash paid for interest                                                          $    146,637            $    105,085
---------------------------------------------------------------------------------------------------------------------------
Cash paid for taxes                                                             $      1,546            $      6,440
---------------------------------------------------------------------------------------------------------------------------
Net loans transferred to repossessed real estate and other assets               $        925            $        957
---------------------------------------------------------------------------------------------------------------------------

See accompanying notes to consolidated financial statements.

 33

Notes to Consolidated Financial Statements (Unaudited)

(1) Accounting Policies

Basis of Presentation

The unaudited  consolidated  financial  statements of BOK Financial  Corporation
("BOK  Financial"  or "the  Company")  have been  prepared  in  accordance  with
accounting  principles for interim financial  information  generally accepted in
the  United  States  and with the  instructions  to Form 10-Q and  Article 10 of
Regulation  S-X.  Accordingly,  they do not include all of the  information  and
footnotes  required by generally  accepted  accounting  principles  for complete
financial statements. In the opinion of management,  all adjustments (consisting
of normal recurring accruals)  considered necessary for a fair presentation have
been included.

The  unaudited   consolidated  financial  statements  include  accounts  of  BOK
Financial  and its  subsidiaries,  principally  Bank of  Oklahoma,  N.A. and its
subsidiaries  ("BOk"),  Bank of Texas,  N.A.,  Bank of Arkansas,  N.A.,  Bank of
Albuquerque,  N.A. Colorado State Bank and Trust,  N.A., Bank of Arizona,  N.A.,
Bank of Kansas City, N.A., and BOSC, Inc. Certain prior period amounts have been
reclassified to conform to current period classification.

The financial  information  should be read in conjunction  with BOK  Financial's
2006 Form 10-K filed with the Securities and Exchange Commission, which contains
audited  financial  statements.  Amounts  presented as of December 31, 2006 have
been derived from BOK Financial's 2006 Form 10-K.

Newly Adopted and Pending Accounting Policies

BOK Financial adopted Statement of Financial Accounting Standards No. 157, "Fair
Value  Measurement"  (FAS 157") as of January 1,  2007.  FAS 157  established  a
single authoritative definition of fair value, set out a framework for measuring
fair value and required additional disclosures about fair value measurements. It
also nullified EITF guidance that  prohibited  recognition of gains at inception
for derivative transactions whose fair value is estimated by modeling.

Beginning  January 1, 2007,  the fair value of  customer  derivative  assets and
liabilities  fully reflects the discounted  cash flows based on forward  curves,
volatilities,  credit risks and other  market-observable  inputs. Changes in the
net fair values of customer  derivative  contracts  are a component of Brokerage
and Trading  Revenue.  Retained  earnings  were  charged  $679  thousand for the
after-tax  effect  of the  initial  adoption  of FAS 157 on the  fair  value  of
customer  derivative assets and liabilities.  FAS 157 did not have a significant
effect on other fair value measurements in the Company's financial statements.

The Company adopted Financial  Accounting Standards Board Interpretation No. 48,
"Accounting  for Uncertainty in Income Taxes" ("FIN 48"),  effective  January 1,
2007.  FIN 48 requires  that an uncertain  tax position must be more likely than
not of being  upheld  upon audit by the taxing  authority  for the benefit to be
recognized.  The  benefit  of  uncertain  tax  positions  that do not meet  this
criterion may not be recognized. In addition, FIN 48 requires that the amount of
tax  benefit  that may be  recognized  for  uncertain  positions  that  meet the
recognition  criterion shall consider the amounts and  probabilities of outcomes
that could be realized upon settlement. BOK Financial recognized a $609 thousand
increase in the liability for unrecognized tax benefits, which was accounted for
as a reduction  to the January 1, 2007 balance of retained  earnings.  As of the
date of adoption, total unrecognized tax benefits were $12.6 million,  including
the amount recognized in retained earnings.  These unrecognized tax benefits, if
recognized  in the future,  could affect the  effective  tax rate.  Interest and
penalties  accrued related to  unrecognized  tax benefits are included in income
tax expense.  As of January 1, 2007,  the Company had $2 million total  interest
and  penalties  accrued.  Federal  statute  remains open for federal tax returns
filed in the previous three reporting periods. Various state income tax statutes
remain open for the previous three to six reporting periods.

The  Financial   Accounting   Standards  Board  issued  Statement  of  Financial
Accounting  Standards No. 159,  "The Fair Value Option for Financial  Assets and
Financial Liabilities" ("FAS 159") during the first quarter of 2007. The purpose
of FAS 159 is to  increase  the use of fair  value  measurements  in  financials
statements and to mitigate  volatility in reported  earnings caused by measuring
related assets and liabilities differently without having to apply complex hedge
accounting provisions.  FAS 159 permits financial statement issuers an option to
measure  eligible  financial  assets and  financial  liabilities  at fair value.
Unrealized gains and losses on assets and liabilities measured at fair value are
reported in earnings.  The option to measure  eligible assets and liabilities is
applied on an  instrument

 34

-by-instrument  basis, is irrevocable  and is applied to the entire  instrument.
FAS 159 is  effective  as of the  beginning of the first fiscal year that begins
after November 15, 2007 and may be adopted as of a fiscal year that begins on or
before November 15, 2007, subject to certain conditions.  The Company expects to
adopt FAS 159 as  required  on  January  1,  2008.  The effect of FAS 159 on the
Company's financial statements has not yet been determined.

(2) Acquisitions

During the first  quarter of 2007,  the Company  reached an agreement to acquire
Texas-based Worth  Bancorporation,  Inc. for approximately $127 million in cash.
As of December 31, 2006,  Worth had total assets of $390  million,  net loans of
$272 million, total deposits of $345 million and five branches in the Fort Worth
market. The acquisition is expected to close on or about May 31, 2007.

Also during the first  quarter of 2007,  the  Company  paid  approximately  $425
thousand  to  acquire  a  charter  for  Bank of  Kansas  City in  order to begin
full-service   banking  operations  in  Missouri.   Previously,   the  Company's
full-service  banking rights were restricted to Kansas City, Kansas. The Company
currently has two full-service banking locations in the Kansas City market.

 35

(3) Fair Value Measurements

Fair value measurements as of March 31, 2007 are as follows (in thousands):


                                                           Quoted Prices
                                                             in Active        Significant
                                                            Markets for          Other         Significant
                                                             Identical         Observable     Unobservable
                                                Total       Instruments          Inputs          Inputs
                                              ----------- ---------------- --------------- ----------------
   Assets:
                                                                       
    Trading securities                           $46,079        17,385          $28,694
    Available for sale securities              4,786,316        28,204        4,758,112
    Mortgage trading securities                  131,524                        131,524
    Mortgage servicing rights                     68,120                                       68,120 (1)
    Derivative contracts                         220,120                        220,120

   Liabilities:
    Hedged certificates of deposit               349,424                        349,424
    Derivative contracts                         236,775                        236,775


(1)      A reconciliation of the beginning and ending fair value of mortgage
         servicing rights and disclosures of significant assumptions used to
         determine fair value are presented in Note 5, Mortgage Banking
         Activities.


The fair value of assets and liabilities  based on significant  other observable
inputs are  generally  provided to us by  third-party  pricing  services and are
based on one or more of the following:

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

o    Quoted prices for identical or similar  assets or  liabilities  in inactive
     markets;

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

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

The underlying  methods used by the third-party  pricing services are considered
in determining the primary inputs used to determine fair values.

No fair value  measurements of significant  assets or liabilities  measured on a
non-recurring  basis were made during the first quarter of 2007. Assets measured
on a non-recurring basis include pension plan assets,  which are based on quoted
prices in active markets for identical instruments and goodwill,  which is based
on significant unobservable inputs.


(4) Derivatives

The fair  values of  derivative  contracts  at March 31, 2007 are as follows (in
thousands):

                                                  Assets      Liabilities
                                              ----------- --- ------------
   Customer Risk Management Programs:
         Interest rate contracts                 $24,959         $27,923
         Energy contracts                        178,512         187,167
         Cattle contracts                          2,311           2,202
         Foreign exchange contracts               12,640          12,641
         CD options                                  237             237
--------------------------------------------- ----------- --- ------------
     Total Customer Derivatives                  218,659         230,170

   Interest Rate Risk Management Programs          1,461           6,605
--------------------------------------------- ----------- --- ------------
     Total Derivative Contracts                 $220,120        $236,775
--------------------------------------------- ----------- --- ------------

 36

(5) Mortgage Banking Activities

At March 31, 2007,  BOK Financial  owned the rights to service  55,385  mortgage
loans with  outstanding  principal  balances  of $5.0  billion,  including  $531
million  serviced  for  affiliates.  The  weighted  average  interest  rate  and
remaining term was 6.14% and 277 months, respectively.

In the first  quarter of 2007,  the Company paid  approximately  $3.6 million to
acquire the rights to service  approximately  $270  million of  mortgage  loans.
Substantially all of these loans are to borrowers in our primary market areas.

For the three months  ended March 31, 2007 and 2006,  mortgage  banking  revenue
includes servicing fee income of $4.2 million and $4.0 million, respectively.

In 2006, BOK Financial  implemented  Statement of Financial Accounting Standards
No. 156, "Accounting for Servicing of Financial Assets." Upon implementation, an
initial   adjustment  of  the  mortgage   servicing  rights  to  fair  value  of
approximately $351 thousand,  net of income taxes, was recognized as an increase
to retained earnings and certain  securities  designated as an economic hedge of
mortgage   servicing  rights  were  transferred  from  the  available  for  sale
classification to trading.

Activity  in  capitalized   mortgage  servicing  rights  and  related  valuation
allowance  during the three  months  ending  March 31,  2007 is as  follows  (in
thousands):


                                               Capitalized Mortgage Servicing Rights
                                             ------------------------------------------
                                               Purchased      Originated      Total
                                             --------------- ------------ -------------

                                                                   
Balance at December 31, 2006                 $    12,813   $    53,133   $    65,946
Additions, net                                     3,614         2,349         5,963
Change in fair value due to loan runoff             (600)       (2,025)       (2,625)
Change in fair value due to market changes            66        (1,230)       (1,164)
-------------------------------------------- -- ---------- -- ---------- -- -----------
Balance at  March 31, 2007 (1)               $    15,893   $    52,227   $    68,120
-------------------------------------------- -- ---------- -- ---------- -- -----------

Fair  value  is  determined  by  discounting   the  projected  net  cash  flows.
Significant assumptions used to determine fair value are:




                                                             March 31, 2007        December 31, 2006
                                                        ---------------------     --------------------
                                                                                    
Discount rate - risk-free rate plus a market premium             10.02%                   9.91%

Prepayment rate - based upon loan interest rate,
  original term and loan type                                 9.2% - 17.4%             8.7% - 18.0%

Loan servicing costs - annually per loan based upon
  loan type                                                    $41 - $58                $41 - $58

Escrow earnings rate - indexed to rates paid on deposit
  accounts with comparable average life                         5.40%                     5.49%


 37

Stratification  of  the  mortgage  loan  servicing   portfolio  and  outstanding
principal  of loans  serviced  by interest  rate at March 31,  2007  follows (in
thousands):


                                               < 5.51%      5.51% - 6.50%    6.51% - 7.50%    > 7.50%       Total
------------------------------------------ ---------------- --------------- ---------------- ----------- -------------
                                                                                              
Fair value                                     $ 15,276           $ 35,766         $13,582      $3,496       $68,120
------------------------------------------ ---------------- --------------- ---------------- ----------- -------------
Outstanding principal of loans serviced (1) $ 1,000,000       $  2,305,400       $ 912,500    $212,900    $4,430,800
------------------------------------------ ---------------- --------------- ---------------- ----------- -------------

(1)  Excludes  outstanding  principal  of $531  million for loans  serviced  for
affiliates  and $49 million of mortgage loans for which there are no capitalized
mortgage servicing rights.



(6)  Disposal of Available for Sale Securities

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

                                              Three Months Ended March 31,
                                           ----------------------------------
                                               2007                2006
                                           --------------     ---------------
Proceeds                                $      469,223     $       36,576
Gross realized gains                               944                714
Gross realized losses                           (1,761)            (1,935)
Related federal and state income
   tax expense (benefit)                          (291)              (444)


(7) Employee Benefits

BOK Financial has sponsored a defined benefit Pension Plan for all employees who
satisfied  certain age and service  requirements.  Pension  Plan  benefits  were
curtailed as of April 1, 2006. The Company  recognized no periodic  pension cost
during three  months  ended March 31, 2007.  During the three months ended March
31, 2006, net periodic pension cost was approximately $1.8 million.

The Company made no Pension Plan contributions  during the first quarter of 2007
and 2006.

Management  has been advised that no minimum  contribution  will be required for
2007. The maximum allowable contribution for 2007 has not yet been determined.


(8) Shareholders' Equity

On April 24, 2007, the Board of Directors of BOK Financial  Corporation approved
a $0.20 per share quarterly common stock dividend.  The quarterly  dividend will
be payable on or about May 30, 2007 to shareholders of record on May 15, 2007.


 38

(9)  Earnings Per Share

The following table presents the  computation of basic and diluted  earnings per
share (dollars in thousands, except share data):


                                                                        Three Months Ended March 31,
                                                                    ----------------------------------
                                                                          2007            2006
                                                                    ----------------------------------
Numerator:
                                                                                   
   Net income                                                            $  52,793       $  54,748
------------------------------------------------------------------------------------------------------
Denominator:
   Denominator for basic earnings per share - weighted average          67,085,310      66,715,396
     shares
   Effect of dilutive potential common shares:
     Employee stock compensation plans (1)                                 489,361         545,263
------------------------------------------------------------------------------------------------------

Denominator for diluted earnings per share - adjusted weighted
   average shares and assumed conversions                               67,574,671      67,260,659
------------------------------------------------------------------------------------------------------
Basic earnings per share                                                   $  0.79         $  0.82
------------------------------------------------------------------------------------------------------
Diluted earnings per share                                                 $  0.78         $  0.81
------------------------------------------------------------------------------------------------------

(1) Excludes employee stock options with exercise prices greater
    than current market price.                                             771,442       1,598,709



(10)  Reportable Segments

Reportable segments  reconciliation to the Consolidated Financial Statements for
the three months ended March 31, 2007 is as follows (in thousands):


                                       Net            Other           Other
                                    Interest        Operating       Operating       Net Income        Average
                                     Revenue       Revenue(1)        Expense                          Assets
                                   ------------ -- ------------ -- ------------- -- ----------- -- --------------
                                                                                 
Total reportable segments       $      134,385  $       91,071  $      125,928   $      59,812  $   19,097,755
Unallocated items:
   Tax-equivalent adjustment             2,085               -               -           2,085               -
   Funds management and other           (7,632)          1,611           6,584         (9,104)      (1,157,797)
                                   ------------ -- ------------ -- ------------- -- ----------- -- --------------

BOK Financial consolidated      $      128,838  $       92,682  $      132,512   $      52,793  $   17,939,958
                                   ============ == ============ == ============= == =========== == ==============

(1) Excluding financial instruments gains/(losses).


Reportable segments  reconciliation to the Consolidated Financial Statements for
the three months ended March 31, 2006 is as follows (in thousands):


                                                  Net            Other           Other
                                               Interest        Operating       Operating       Net Income        Average
                                                Revenue       Revenue(1)        Expense                          Assets
                                              ------------ -- ------------ -- ------------- -- ----------- -- --------------
                                                                                            
Total reportable segments                  $      119,897  $       90,285  $      110,064   $      59,766  $   16,806,596
Unallocated items:
   Tax-equivalent adjustment                        1,522               -               -           1,522               -
   Funds management and other                      (4,093)            682           7,315                        (536,357)
                                                                                                 (6,540)
                                              ------------ -- ------------ -- ------------- -- ----------- -- --------------

BOK Financial consolidated                 $      117,326  $       90,967  $      117,379   $      54,748  $   16,270,239
                                              ============ == ============ == ============= == =========== == ==============

(1) Excluding financial instruments gains/(losses).


 39

(11)  Contingent Liabilities

AXIA Investment Management,  Inc. ("AXIA"), a wholly-owned subsidiary of BOk, is
the administrator to and investment  advisor for the American  Performance Funds
("AP  Funds").  AP  Funds  is  a  diversified,   open-ended  investment  company
established in 1987 as a business trust under the Investment Company Act of 1940
(the "1940 Act"). AP Fund's products are offered to customers,  employee benefit
plans,  trusts  and the  general  public in the  ordinary  course  of  business.
Approximately  98% of AP  Fund's  assets  of  $3.4  billion  are  held  for  BOK
Financial's clients.

On October 10, 2006, the Securities and Exchange  Commission (the "SEC") started
a special  examination  of AXIA.  The  examination  is focused on the BISYS Fund
Services Ohio, Inc.  ("BISYS")  marketing  assistance  agreements with AXIA that
were  terminated in 2004. In September  2006,  BISYS settled the SEC's  two-year
investigation  of it by consenting to an order in which the SEC determined  that
BISYS had "willfully  aided and abetted and caused" (1) the investment  advisors
to 27 different families of mutual funds to violate provisions of the Investment
Advisors  Act of 1940  that  prohibit  fraudulent  conduct;  (2) the  investment
advisors  to the 27 fund  families  to violate  provisions  of the 1940 Act that
prohibit the making of any untrue statement of a material fact in a registration
statement filed by the mutual fund with the SEC, and (3) the 27 fund families to
violate  provisions of the 1940 Act that require the disclosure and inclusion of
all distribution arrangements and expenses in the fund's 12b-1 fee plan. AXIA is
one of the 27 advisors and the AP Funds one of the mutual fund families to which
the SEC referred.  AXIA is not bound by the SEC BISYS Order and  disagrees  with
its findings as they relate to AXIA.  Although the SEC's  examination of AXIA is
ongoing, BOK Financial does not expect the examination or any action the SEC may
take based upon it to have a material adverse effect on the Company.

On May 4, 2007,  the AP Funds  demanded AXIA and/or BISYS refund to the AP Funds
$8.1  million  (with  interest)  and  reimburse  the  expenses  of the AP Funds'
investigation  of this matter  (which  expenses  are in excess of $1 million) or
justify  the   appropriateness   of  $8.1  million  of   marketing   arrangement
expenditures.  The AP Funds have further indicated that the foregoing demand was
in  respect  of the  period  from  1997 to 2004,  and  that it may seek  further
reimbursement  from AXIA and/or BISYS for periods before 1997. BOK Financial has
examined the expenditures  procured by AXIA pursuant to the questioned marketing
arrangements  and has paid or tendered  for payment  $1.7  million for  expenses
which were or could be argued to have been  improperly  charged to the marketing
arrangements.  Otherwise,  BOK Financial believes the AP Funds demand on AXIA is
without merit.

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.


(12) Financial Instruments with Off-Balance Sheet Risk

BOK Financial is a party to financial instruments with off-balance-sheet risk in
the normal course of business to meet the  financing  needs of its customers and
to manage interest rate risk. Those financial  instruments  involve,  to varying
degrees,  elements  of credit  risk in excess of the  amount  recognized  in BOK
Financial's Consolidated Balance Sheets. Exposure to credit loss in the event of
nonperformance by the other party to the financial instrument for commitments to
extend  credit and  standby  letters of credit is  represented  by the  notional
amount of those instruments.

As of March 31,  2007,  outstanding  commitments  and  letters of credit were as
follows (in thousands):

                                               March 31,
                                                2007
                                            --------------
Commitments to extend credit                $ 5,260,750
Standby letters of credit                       516,538
Commercial letters of credit                     12,946

 40


------------------------------------------------------------------------------------------------------------------------------
Quarterly Financial Summary - Unaudited
Consolidated Daily Average Balances, Average Yields and Rates
(Dollars in Thousands, Except Per Share Data)
                                                                           Three Months Ended
                                         -------------------------------------------------------------------------------------
                                                        March 31, 2007                            December 31, 2006
                                         ------------------------------------------      -------------------------------------
                                              Average        Revenue/    Yield /         Average        Revenue/    Yield /
                                              Balance       Expense(1)     Rate          Balance       Expense(1)     Rate
                                         -------------------------------------------------------------------------------------
Assets
                                                                                                    
  Taxable securities (3)                  $   4,802,768   $    57,595       4.86%    $   4,745,619   $    56,264       4.69%
  Tax-exempt securities (3)                     322,202         4,802       6.09           318,969         4,435       5.52
------------------------------------------------------------------------------------------------------------------------------
    Total securities (3)                      5,124,970        62,397       4.93         5,064,588        60,699       4.74
------------------------------------------------------------------------------------------------------------------------------
  Trading securities                             29,613           519       7.11            22,668           322       5.64
  Funds sold and resell agreements               55,674           665       4.84            39,665           546       5.46
  Loans (2)                                  10,893,163       213,080       7.93        10,361,841       207,322       7.94
    Less reserve for loan losses                113,379             -         -            108,377             -         -
------------------------------------------------------------------------------------------------------------------------------
  Loans, net of reserve                      10,779,784       213,080       8.02        10,253,464       207,322       8.02
------------------------------------------------------------------------------------------------------------------------------
    Total earning assets (3)                 15,990,041       276,661       7.02        15,380,385       268,889       6.93
------------------------------------------------------------------------------------------------------------------------------
  Cash and other assets                       1,949,917                                  2,158,647
------------------------------------------------------------------------------------------------------------------------------
        Total assets                      $  17,939,958                              $  17,539,032
------------------------------------------------------------------------------------------------------------------------------

Liabilities And Shareholders' Equity

  Transaction deposits                    $   6,100,117   $    46,367       3.08 %   $   5,768,216   $    43,411       2.99 %
  Savings deposits                              143,101           364       1.03           139,796           365       1.04
  Time deposits                               4,420,390        51,141       4.69         4,417,427        51,781       4.65
------------------------------------------------------------------------------------------------------------------------------
     Total interest-bearing deposits         10,663,608        97,872       3.72        10,325,439        95,557       3.67
------------------------------------------------------------------------------------------------------------------------------
  Funds purchased and repurchase
    agreements                                2,640,485        33,565       5.16         2,584,354        33,736       5.18
  Other borrowings                              668,078         9,098       5.52           586,743         8,128       5.50
  Subordinated debentures                       297,806         5,203       7.09           298,427         5,225       6.95
------------------------------------------------------------------------------------------------------------------------------
     Total interest-bearing liabilities      14,269,977       145,738       4.14        13,794,963       142,646       4.10
------------------------------------------------------------------------------------------------------------------------------
  Demand deposits                             1,397,874                                  1,481,455
  Other liabilities                             530,659                                    566,128
  Shareholders' equity                        1,741,448                                  1,696,486
------------------------------------------------------------------------------------------------------------------------------
  Total liabilities and shareholders'
      equity                              $  17,939,958                              $  17,539,032
------------------------------------------------------------------------------------------------------------------------------
  Tax-Equivalent Net Interest Revenue (3)                $    130,923       2.88%                    $    126,243        2.83%
  Tax-Equivalent Net Interest  Revenue
     To Earning Assets (3)                                                  3.32                                         3.25
   Less tax-equivalent adjustment (1)                           2,085                                      1,965
------------------------------------------------------------------------------------------------------------------------------
Net Interest Revenue                                          128,838                                    124,278
Provision for credit losses                                     6,500                                      5,953
Other operating revenue                                        92,190                                     93,723
Other operating expense                                       132,512                                    133,991
------------------------------------------------------------------------------------------------------------------------------
Income before taxes                                            82,016                                     78,057
Federal and state income tax                                   29,223                                     27,472
------------------------------------------------------------------------------------------------------------------------------
Net Income                                                $    52,793                                $    50,585
------------------------------------------------------------------------------------------------------------------------------
Earnings Per Average Common Share Equivalent:
  Net income:
    Basic                                                 $      0.79                                $      0.76
------------------------------------------------------------------------------------------------------------------------------
    Diluted                                               $      0.78                                $      0.75
------------------------------------------------------------------------------------------------------------------------------


(1)  Tax  equivalent  at the  statutory  federal and state rates for the periods
     presented.  The taxable  equivalent  adjustments  shown are for comparative
     purposes.

(2)  The loan averages  included loans on which the accrual of interest has been
     discontinued and are stated net of unearned income.

(3)  Yield calculations exclude security trades that have been recorded on trade
     date with no corresponding interest income.

 41


-------------------------------------------------------------------------------------------------------------------------
                                                   Three Months Ended
-------------------------------------------------------------------------------------------------------------------------
             September 30, 2006                         June 30, 2006                          March 31, 2006
-------------------------------------------------------------------------------------------------------------------------
      Average       Revenue/    Yield /       Average        Revenue/    Yield /      Average       Revenue/    Yield /
      Balance      Expense(1)     Rate        Balance       Expense(1)    Rate        Balance      Expense(1)    Rate
-------------------------------------------------------------------------------------------------------------------------

                                                                                           
  $   4,694,588  $    54,589       4.63%  $   4,783,280   $    56,632       4.75% $   4,862,313  $    55,046       4.60%
        306,170        4,187       5.43         273,305         3,485       5.12        262,124        3,465       5.36
-------------------------------------------------------------------------------------------------------------------------
      5,000,758       58,776       4.68       5,056,585        60,117       4.77      5,124,437       58,511       4.64
-------------------------------------------------------------------------------------------------------------------------
         21,721          226       4.13          23,672           287       4.86         16,722          209       5.07
         51,518          649       5.00          32,048           407       5.09         21,181          239       4.58
      9,813,602      197,665       7.99       9,472,309       181,269       7.68      9,164,706      166,148       7.35
        106,474            -         -          106,048             -         -         105,135            -         -
-------------------------------------------------------------------------------------------------------------------------
      9,707,128      197,665       8.08       9,366,261       181,269       7.76      9,059,571      166,148       7.44
-------------------------------------------------------------------------------------------------------------------------
     14,781,125      257,316       6.91      14,478,566       242,080       6.71     14,221,911      225,107       6.42
-------------------------------------------------------------------------------------------------------------------------
      2,049,998                               2,085,724                               2,048,328
-------------------------------------------------------------------------------------------------------------------------
  $  16,831,123                           $  16,564,290                           $  16,270,239
-------------------------------------------------------------------------------------------------------------------------


  $   5,458,280  $    39,571       2.88 % $   5,353,413   $    34,875       2.61 %$   5,327,004  $    31,129       2.37%
        146,276          360       0.98         153,200           353       0.92        155,554          330       0.86
      4,314,672       48,540       4.46       4,220,204        44,798       4.26      4,162,952       41,395       4.03
-------------------------------------------------------------------------------------------------------------------------
      9,919,228       88,471       3.54       9,726,817        80,026       3.30      9,645,510       72,854       3.06
-------------------------------------------------------------------------------------------------------------------------

      2,138,749       27,568       5.11       2,118,211        25,696       4.87      1,731,983       18,483       4.33
        750,247       10,253       5.42         684,431         8,682       5.09        882,878       10,007       4.60
        293,146        5,210       7.05         292,474         4,930       6.76        295,792        4,915       6.74
-------------------------------------------------------------------------------------------------------------------------
     13,101,370      131,502       3.98      12,821,933       119,334       3.73     12,556,163      106,259       3.43
-------------------------------------------------------------------------------------------------------------------------
      1,453,163                               1,474,835                               1,485,398
        657,269                                 695,418                                 680,897
      1,619,321                               1,572,104                               1,547,781
-------------------------------------------------------------------------------------------------------------------------
  $  16,831,123                           $  16,564,290                           $  16,270,239
-------------------------------------------------------------------------------------------------------------------------
                 $    125,814      2.93%                  $    122,746      2.98%                $    118,848      2.99%
                                                                                      3.05

                                   3.38                                     3.40                                   3.39
                       1,836                                    1,640                                  1,522
-------------------------------------------------------------------------------------------------------------------------
                     123,978                                  121,106                                117,326
                       5,254                                    3,795                                  3,400
                      97,583                                   90,880                                 89,437
                     138,810                                  122,127                                117,379
-------------------------------------------------------------------------------------------------------------------------
                      77,497                                   86,064                                 85,984
                      24,837                                   31,080                                 31,236
-------------------------------------------------------------------------------------------------------------------------
                 $    52,660                              $    54,984                            $    54,748
-------------------------------------------------------------------------------------------------------------------------


                 $      0.79                              $      0.82                            $      0.82
-------------------------------------------------------------------------------------------------------------------------
                 $      0.78                              $      0.82                            $      0.81
-------------------------------------------------------------------------------------------------------------------------


 42

PART II. Other Information

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

The following table provides information with respect to purchases made by or on
behalf  of the  Company  or any  "affiliated  purchaser"  (as  defined  in  Rule
10b-18(a)(3) under the Securities Exchange Act of 1934), of the Company's common
stock during the three months ended March 31, 2007.


------------------------ ---------------- ---------------- ------------------------------------ -----------------------------

                          Total Number     Average Price    Total Number of Shares Purchased      Maximum Number of Shares
                            of Shares     Paid per Share      as Part of Publicly Announced      that May Yet Be Purchased
      Period               Purchased (2)                           Plans or Programs (1)               Under the Plans
------------------------ ---------------- ---------------- ------------------------------------ -----------------------------
                                                                                                 
January 1, 2007 to             41,857         $54.27                         -                            1,721,323
January 31, 2007
------------------------ ---------------- ---------------- ------------------------------------ -----------------------------
                                                                             -
February 1, 2007 to             9,374         $52.84                                                      1,721,323
February 28, 2007
------------------------ ---------------- ---------------- ------------------------------------ -----------------------------

March 1, 2007 to               29,843         $50.57                    25,000                            1,696,323
March 31, 2007
------------------------ ---------------- ---------------- ------------------------------------ -----------------------------

Total                          81,074                                   25,000
------------------------ ---------------- ---------------- ------------------------------------ -----------------------------

(1)  The Company had a stock  repurchase  plan that was initially  authorized by
     the  Company's  board of  directors on February 24, 1998 and amended on May
     25, 1999.  Under the terms of that plan, the Company could repurchase up to
     800,000  shares of its common stock.  As of March 31, 2005, the Company had
     repurchased  638,642  shares  under  that  plan.  On April  26,  2005,  the
     Company's board of directors  terminated this authorization and replaced it
     with a new stock  repurchase plan  authorizing the Company to repurchase up
     to two million shares of the Company's  common stock. As of March 31, 2007,
     the Company had repurchased 303,677 shares under the new plan.

(2)  The Company routinely repurchases mature shares from employees to cover the
     exercise  price  and  taxes  in  connection   with  employee  stock  option
     exercises.



Item 6. Exhibits

31.1 Certification  of Chief  Executive  Officer  Pursuant to Section 302 of the
     Sarbanes-Oxley Act of 2002

31.2 Certification  of Chief  Financial  Officer  Pursuant to Section 302 of the
     Sarbanes-Oxley Act of 2002

32   Certification  of Chief  Executive  Officer  and  Chief  Financial  Officer
     Pursuant to 18 U.S.C.  Section 1350, as Adopted  Pursuant to Section 906 of
     the Sarbanes-Oxley Act of 2002


Items 1, 3, 4 and 5 are not applicable and have been omitted.

 43


                                   Signatures


Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.


                                      BOK FINANCIAL CORPORATION
                                      (Registrant)



Date:  May 10, 2007                   /s/ Steven E. Nell
     ----------------------           ------------------------------
                                      Steven E. Nell
                                      Executive Vice President and
                                      Chief Financial Officer


                                      /s/ John C. Morrow
                                      ------------------------------
                                      John C. Morrow
                                      Senior Vice President and Director
                                      of Financial Accounting & Reporting