As filed with the Securities and Exchange Commission on May 12, 2008
==============================================================================


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

                                    FORM 10-Q

(Mark One)

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

        For the quarterly period ended March 31, 2008

                                       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:  67,438,599 shares of common
stock ($.00006 par value) as of April 30, 2008.

===============================================================================
 2

                            BOK Financial Corporation
                                    Form 10-Q
                          Quarter Ended March 31, 2008

                                      Index

Part I.  Financial Information
         Management's Discussion and Analysis (Item 2)            2
         Market Risk (Item 3)                                    31
         Controls and Procedures (Item 4)                        32
         Consolidated Financial Statements - Unaudited (Item 1)  34
         Quarterly Financial Summary - Unaudited (Item 2)        46

Part II.  Other Information
     Item 1.  Legal Proceedings                                  48
     Item 2.  Unregistered Sales of Equity Securities and
              Use of Proceeds                                    48
     Item 6.  Exhibits                                           48

Signatures                                                       49

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

Performance Summary

BOK Financial  Corporation reported quarterly earnings of $62.3 million or $0.92
per diluted  share for the first  quarter of 2008, up 18% over the first quarter
of 2007.  Net income  totaled  $52.8  million or $0.78 per diluted share for the
first  quarter  of 2007 and $51.2  million  or $0.76 per  diluted  share for the
fourth quarter of 2007.

Highlights of the first quarter of 2008 included:

o    Net interest  margin was 3.31% for the first quarter of 2008,  down 1 basis
     point from the first  quarter of 2007 and up 9 basis points from the fourth
     quarter of 2007. Net interest revenue  increased 14% over the first quarter
     of 2007 and 17% annualized over the fourth quarter of 2007.

o    Average  outstanding  loans  increased  12% over the first quarter of 2007.
     Period-end  annualized loan growth rate was 12% since the end of the fourth
     quarter of 2007.

o    Non-performing  assets totaled $126 million or 1.02% of  outstanding  loans
     and repossessed  assets at March 31, 2008, up from $104 million or 0.87% of
     outstanding  loans and  repossessed  assets at  December  31,  2007 and $50
     million or 0.45% of outstanding  loans and repossessed  assets at March 31,
     2007.

o    Net loans charged off and provision for credit losses were $8.9 million and
     $17.6  million,  respectively,  for the first quarter of 2008 compared with
     net loans  charged off of $7.3 million and  provision  for credit losses of
     $13.2  million  for the fourth  quarter of 2007 and $3.1  million  and $6.5
     million for the first quarter of 2007.

o    Fees and commissions  revenue  increased 24% over the first quarter of 2007
     and 2% annualized  over the fourth  quarter of 2007.  Brokerage and trading
     revenue grew 80% over the first quarter of 2007 and 69% annualized over the
     previous  quarter.  All major categories of fee revenue  increased over the
     same period last year.

o    Operating  expenses were up 16% over the first  quarter of 2007.  Personnel
     expenses  increased  12% due to incentive  compensation  which is linked to
     revenue growth.  Operating expenses increased 3% annualized over the fourth
     quarter of 2007 excluding  changes in the contingent  obligation to support
     Visa's antitrust litigation.

Visa Initial Public Offering Benefits and Securities Impairment Charges

During the first quarter of 2008, the Company  recognized income of $6.8 million
($4.4 million  after-tax) for cash received from Visa's initial public offering.
This represented a partial  redemption of the Company's interest in Visa's Class
B  shares.  In  addition,  the  Company  reversed  its $2.8  million  contingent
liability to support Visa's antitrust  litigation costs which was accrued in the
fourth  quarter of 2007.  Visa  established an escrow fund with a portion of the

 3

proceeds of its initial  public  offering  for  payments  related to  litigation
matters.

Also during the first quarter of 2008, the Company recognized an additional $5.3
million  pre-tax  reduction in the fair value of its  holdings of variable  rate
perpetual preferred stock issued by six major banks and brokerage houses.  These
issuers  remain  rated  investment  grade by the major  rating  agencies and all
scheduled  dividend payments on these preferred stocks have been made.  However,
based  on  continued  weakness  in the  financial  sector,  it was  management's
judgment  that  recovery of fair value of these  securities to at least the cost
basis  established at the end of the fourth quarter was not expected in the near
term. The carrying  value of preferred  stocks which equals their March 31, 2008
fair value was $27.5 million.

Transactions  related to Visa and to the impairment of preferred stocks provided
$2.7  million  or $.04 per share to net  income  for the first  quarter of 2008.
Similar  transactions  reduced net income $7.4 million or $0.11 per share in the
fourth quarter of 2007.


Results of Operations

Net Interest Revenue and Net Interest Margin

Net interest  revenue  totaled  $147.1 million for the first quarter of 2008, up
$18.3  million  or 14% over the first  quarter  of 2007 and $5.8  million or 17%
annualized  over the fourth quarter of 2007.  Average  earning assets  increased
$2.1  billion or 13% over the first  quarter of 2007,  including a $1.3  billion
increase in average  outstanding  loans and a $764  million  increase in average
securities.   Growth  in  the  securities   portfolio   generally  consisted  of
highly-rated,  fixed-rate  mortgage-backed  securities.  These  securities  were
purchased to supplement the Company's earnings and help manage the balance sheet
to a position that is essentially neutral to changes in interest rates.

Growth in average  earning assets was funded  primarily by a $1.1 billion or 33%
increase in average federal funds  purchased and other borrowed funds.  Interest
rates on these wholesale  funding sources have recently been lower than interest
rates on  deposits.  We also  continued to grow  deposits  during the past year.
Average  deposits  were up $1.0  billion  or 9% over the first  quarter of 2007.
Average  interest-bearing  transaction  accounts  grew $1.4  billion  or 23% and
average  time  deposits  decreased  $195  million or 4% compared  with the first
quarter of 2007. Average demand deposits decreased $161 million or 12%.

Net interest  margin was 3.31% for the first quarter of 2008 compared with 3.32%
for the first quarter of 2007 and 3.22% for the fourth  quarter of 2007.  Yields
on average  earning  assets  decreased  85 basis points to 6.17% and the cost of
interest-bearing  liabilities  decreased 103 basis points to 3.11% compared with
the first quarter of 2007. Loan yields decreased 134 basis points to 6.59% while
securities yields increased 24 basis points to 5.17%. Our securities re-price as
cash flow received is reinvested at current market rates.  The resulting  change
in yield on the securities  portfolio  occurs more slowly than changes in market
rates. The cost of interest bearing deposits  decreased 73 basis points to 2.99%
and the cost of funds purchased and other borrowings decreased 204 basis points.
Competition  for deposits in all our markets limited our ability to move deposit
rates down as the Federal  Reserve eased rates.  The benefit to the net interest
margin from earning assets funded by  non-interest  bearing  liabilities  was 25
basis points in the first  quarter of 2008  compared with 44 basis points in the
first quarter of 2007 and 33 basis points in the preceding quarter.

Management  regularly  models the  effects of changes in  interest  rates on net
interest  revenue.  Based on this  modeling,  we expect net interest  revenue to
decrease slightly over a one-year forward looking period. However, other factors
such as loan and deposit spreads,  deposit product mix and overall balance sheet
composition may affect this general expectation.  For example,  historically the
spread between LIBOR rates and federal funds rates has been relatively constant.
Recent  troubles in the  financial  markets have made this spread more  volatile
which affects the re-pricing of many of our loans and funding sources.

Our overall  objective is to manage the Company's balance sheet to be relatively
neutral to changes in interest  rates over a twelve month period.  Approximately
67% of our  commercial  and  commercial  real estate loan  portfolios are either
variable rate or fixed rate that will re-price within one year.  These loans are
funded primarily by deposit accounts that are either  non-interest  bearing,  or
that  re-price  more slowly than the loans.  The result is a balance  sheet that
would be asset  sensitive,  which  means that  assets  generally  re-price  more
quickly  than  liabilities.  Among  the  strategies  that  we use to  achieve  a
relatively  rate-neutral  position,  we  purchase  fixed-rate,   mortgage-backed
securities  to offset the  short-term  nature of the  majority of the  Company's
funding sources.  The  liability-sensitive  nature of this strategy  provides an
offset to the asset-sensitive characteristics of our loan portfolio. We also use
derivative  instruments  to manage our

 4

interest rate risk.  Interest rate swaps with a combined notional amount of $290
million  convert fixed rate  liabilities  to floating  rate based on LIBOR.  The
purpose of these  derivatives  is to position our balance sheet to be relatively
neutral to changes in  interest  rates.  Net  interest  revenue  increased  $463
thousand in the first  quarter of 2008 and $2.8 million in the first  quarter of
2007 from periodic  settlements of these contracts.  These contracts are carried
on the  balance  sheet at fair value and  changes in fair value are  reported in
income as derivatives gains or losses.

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, 2008 / 2007
                                           -----------------------------------
                                                           Change Due To (1)
                                           -----------------------------------
                                                                     Yield /
                                              Change     Volume       Rate
                                           -----------------------------------
Tax-equivalent interest revenue:
  Securities                                $  13,847 $  10,116   $   3,731
  Trading securities                              914       833          81
  Loans                                       (13,402)   23,895     (37,297)
  Funds sold and resell agreements                175       282        (107)
------------------------------------------------------------------------------
Total                                           1,534    35,126     (33,592)
------------------------------------------------------------------------------
Interest expense:
  Transaction deposits                         (4,192)    9,239     (13,431)
  Savings deposits                               (126)       29        (155)
  Time deposits                                (5,407)   (1,988)     (3,419)
  Federal funds purchased and
   repurchase agreements                       (9,916)    4,389     (14,305)
  Other borrowings                              2,620     7,544      (4,924)
  Subordinated debentures                         196     1,576      (1,380)
------------------------------------------------------------------------------
Total                                         (16,825)   20,789     (37,614)
------------------------------------------------------------------------------
  Tax-equivalent net interest revenue          18,359    14,337       4,022
Change in tax-equivalent adjustment               (69)
------------------------------------------------------------------------------
Net interest revenue                       $   18,290
------------------------------------------------------------------------------
(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 $28.8 million compared with the first quarter
of last year.  Fees and commission  revenue  increased $22.3 million or 24%. Net
gains on securities  during the first  quarter of 2008 totaled $4.6 million,  up
$5.2 million over the same period of 2007. Other operating  revenue was up $13.2
million over the fourth quarter of 2007. Fees and commissions  revenue increased
$510 thousand or 2% annualized. Net gains on securities were $4.6 million in the
first  quarter of 2008  compared  with net losses of $6.3 million for the fourth
quarter of 2007.

Diversified sources of fees and commission revenue are a significant part of our
business  strategy and  represented  44% of total revenue,  excluding  gains and
losses on asset sales,  securities  and  derivatives,  for the first  quarter of
2008.  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

Brokerage  and trading  revenue  totaled  $23.9 million for the first quarter of
2008,  up $10.6  million  or 80% over the first  quarter of 2007.  Revenue  from
trading and  institutional  securities  sales totaled $12.9 million in the first
quarter of 2008 and $4.5 million in the first quarter of 2007.  Retail brokerage
activities  increased $1.3 million or 33% over the same period of 2007. Customer
hedging  revenue  grew $709  thousand  or 16% due  primarily  to  interest  rate
hedging.

 5

Brokerage and trading revenue  increased $3.5 million or 69% annualized over the
fourth quarter of 2007. Revenue from trading and institutional  securities sales
was up $4.8  million and revenue  from  customer  hedging  programs  was up $1.4
million.  Investment  banking revenue was down $3.3 million due to the timing of
completed transactions.

Transaction card revenue totaled $23.6 million for the first quarter of 2008, up
$3.4  million  or 17% over  the  first  quarter  of 2007.  ATM  network  revenue
increased $1.5 million or 17% while check card revenue increased $1.3 million or
25% over the first quarter of 2007 due to volume growth.  Merchant discount fees
increased 9% over the first quarter of 2007.

Transaction card revenue for the first quarter of 2008 was up $46 thousand or 1%
annualized  from the fourth  quarter of 2007.  ATM network fees  increased  $234
thousand and merchant  discount fees  decreased $213 thousand due to transaction
volumes.

Trust fees and commissions  totaled $20.8 million for the first quarter of 2008,
a $1.8 million or 9% increase over the first quarter of 2007.  The fair value of
all trust  relationships,  which is the basis for a significant portion of trust
revenue,  increased 7% to $35.5  billion at March 31, 2008  compared  with $33.1
billion at March 31, 2007.  Personal trust management fees, which provide 33% of
total trust fees and commissions increased $475 thousand or 7%. Employee benefit
plan  management  fees,  which provide 20% of total trust fees,  increased  $376
thousand or 10%. Net fees from mutual fund advisory and administrative  services
increased $765 thousand or 18%.

Trust fees and  commissions  increased $651 thousand or 13% annualized  over the
fourth  quarter of 2007 due  primarily  to growth in personal  trust  management
fees.

Deposit  service charges and fees totaled $27.7 million for the first quarter of
2008, up $3.1 million or 13% over the first quarter of 2007. Overdraft fees grew
$1.7  million or 11% due to increased  volume and a per item charge  increase in
certain  markets  during the third  quarter of 2007.  Service  charges on retail
accounts  decreased  $80  thousand  or 6% due  to  service-charge  free  deposit
products.  Commercial  deposit account fees were up $1.4 million or 20% over the
same period of 2007 due to a decrease in earnings credit available to commercial
deposit  customers  and an  increase  in  service  charges  for  higher  deposit
insurance  costs during the first quarter of 2008.  The earnings  credit,  which
provides a non-cash method for commercial  customers to avoid incurring  charges
for deposit services, decreases when interest rates fall.

Deposit service charges  decreased $2.3 million compared with the fourth quarter
of 2007 due to seasonal reduction in overdraft fees,  partially offset by higher
commercial deposit account fees.

Mortgage  banking revenue  increased $1.7 million or 31% compared with the first
quarter of 2007. Servicing revenue totaled $4.3 million for the first quarter of
2008, up $105 thousand over the same period last year. The outstanding principal
balance of mortgage loans serviced for other  institutions  totaled $4.9 billion
at March 31,  2008 and $4.4  billion at March 31,  2007.  Net gains on  mortgage
loans sold totaled $2.9  million,  up $572  thousand  over the first  quarter of
2007.  Mortgage loans  originated for sale in the secondary  market totaled $257
million for the first quarter of 2008, up 45% over the same period in 2007.

Other operating revenue included $2.0 million of fees earned on margin assets in
the first quarter of 2008 and $758 thousand in the first quarter of 2007. Margin
assets which are held  primarily as part of the Company's  customer  derivatives
programs averaged $273 million for the first quarter of 2008,  compared with $94
million for the first quarter of 2007.  The increase in revenue earned on margin
assets is offset by a decrease in net interest  revenue due to the costs to fund
the margin assets.  Fees on margin assets totaled $2.0 million on average margin
balances of $182 million for the fourth quarter of 2007.

Securities and derivatives

BOK Financial  recognized  net gains of $4.6 million on securities for the first
quarter  of 2008 and net losses on  securities  of $563  thousand  for the first
quarter of 2007.  During the first quarter of 2008, the Company  recorded a $5.3
million pre-tax other-than-temporary-impairment charge to recognize the decrease
in fair value of its holdings of variable-rate  perpetual preferred stock issued
by six major banks and  brokerage  houses.  The Company  also  recognized a $6.8
million gain from the partial redemption of Visa, Inc. Class B shares as part of
Visa's  initial  public  offering.  Net gains from the sale of other  securities
totaled $2.9 million and net gains on  securities  held as an economic  hedge or
mortgage  servicing  rights  totaled  $191  thousand.  The Company  sold certain
available  for sale  securities  during  the  first  quarter  of 2008 to  reduce
prepayment risk in response to falling interest rates.  During the first quarter
of 2007, BOK Financial  recognized net losses of $817 thousand on its securities
portfolio  and a net gain of $254  thousand  on  securities  held as an economic

 6

hedge of mortgage servicing rights.

Net gains on derivatives  totaled $2.1 million for the first quarter of 2008 and
$71 thousand for the first quarter of 2007.  Net gains or losses on  derivatives
consist of fair value  adjustments of all  derivatives  used to manage  interest
rate risk and the related hedged  liabilities  when adjustments are permitted by
generally  accepted  accounting  principles.  Derivative  instruments  generally
consist of interest  rate swaps where the Company pays a variable  rate based on
LIBOR and  receives a fixed  rate.  These swaps  generally  increase in value as
interest rates fall.

The Company adopted  Statement of Financial  Accounting  Standards No. 159, Fair
Value Option ("FAS 159")  effective  January 1, 2008. FAS 159 provides an option
to measure eligible  financial  assets and financial  liabilities at fair value.
Certain  certificates of deposit that were either currently designated as hedged
or had previously been  designated as hedged,  but no longer met the correlation
requirements  of  Statement  of  Financial  Accounting  Standards  No.  133 were
designated as being reported at fair value.



--------------------------------------------------------------------------------------------------------------------------
Table 2 - Other Operating Revenue
(In thousands)
                                                                         Three Months Ended
                                           -------------------------------------------------------------------------------
                                               March 31,       Dec. 31,        Sept. 30,        June 30,        March 31,
                                                 2008           2007             2007            2007             2007
                                           -------------------------------------------------------------------------------
                                                                                              
Brokerage and trading revenue               $   23,913     $   20,402       $   15,541      $   13,317       $   13,282
Transaction card revenue                        23,558         23,512           23,812          22,917           20,184
Trust fees and commissions                      20,796         20,145           19,633          19,458           18,995
Deposit service charges and fees                27,686         29,938           27,885          26,797           24,598
Mortgage banking revenue                         7,217          6,912            5,809           4,034            5,520
Bank-owned life insurance                        2,512          2,614            2,520           2,525            2,399
Other revenue                                    8,182          9,831            8,517           7,916            6,609
--------------------------------------------------------------------------------------------------------------------------
  Total fees and commissions                   113,864        113,354          103,717          96,964           91,587
--------------------------------------------------------------------------------------------------------------------------
Gain (loss) on sales of assets                     (35)        (1,316)              42            (348)             694
Gain (loss) on securities, net                   4,620         (6,251)           4,748          (6,262)            (563)
Gain (loss) on derivatives, net                  2,113          1,529              865            (183)              71
--------------------------------------------------------------------------------------------------------------------------
  Total other operating revenue             $  120,562     $  107,316       $  109,372      $   90,171       $   91,789
--------------------------------------------------------------------------------------------------------------------------



Other Operating Expense

Other operating expense for the first quarter of 2008 totaled $153.4 million,  a
$21.3 million or 16% increase over the first  quarter of 2007.  Personnel  costs
increased  $9.8  million or 12% due  largely to  incentive  compensation  costs.
Non-personnel  expenses  increased $11.5 million or 21% due largely to increased
operating  costs from  acquisitions  during  2007 and higher  deposit  insurance
costs.

Personnel expense

Personnel  expense totaled $88.1 million for the first quarter of 2008 and $78.3
million for the first quarter of 2007. Regular  compensation,  which consists of
salaries and wages,  overtime pay and  temporary  personnel  cost totaled  $52.6
million,  up $3.4 million or 7% over the first quarter of 2007.  The increase in
regular compensation expense was due primarily to a 217 person or 6% increase in
average  staffing.   The  increase  in  average  staffing  was  largely  due  to
acquisitions in the second quarter of 2007.

 7


----------------------------------------------------------------------------------------------------------------------
Table 3 - Personnel Expense
(Dollars in thousands)
                                                                   Three Months Ended
                                   ----------------------------------------------------------------------------------
                                      March 31,        Dec. 31,       Sept. 30,         June 30,         March 31,
                                        2008             2007           2007              2007             2007
                                   ----------------------------------------------------------------------------------
                                                                                      
Regular compensation               $    52,576     $    52,316     $    53,592      $    51,821      $    49,128
Incentive compensation:
     Cash-based                         19,287          19,568          15,559           12,485           15,045
     Stock-based                         2,272           1,794           2,345            3,097            1,527
---------------------------------------------------------------------------------------------------------------------
Total incentive compensation            21,559          21,362          17,904           15,582           16,572
Employee benefits                       13,971          10,834          11,816           12,651           12,628
Workforce reduction costs, net               -               -           2,499                -                -
---------------------------------------------------------------------------------------------------------------------
  Total personnel expense          $    88,106     $    84,512     $    85,811      $    80,054      $    78,328
---------------------------------------------------------------------------------------------------------------------
Number of employees
  (full-time equivalent)                 4,135           4,110           4,299            4,093            3,918
---------------------------------------------------------------------------------------------------------------------


Incentive compensation  increased $5.0 million or 30% to $21.6 million.  Expense
for cash-based incentive compensation plans increased $4.2 million or 28%. These
plans are either  intended to provide  current rewards to employees who generate
long-term  business  opportunities  to the  Company  based on  growth  in loans,
deposits,  customer  relationships  and other measurable  metrics or intended to
compensate employees with commissions on completed transactions. The increase in
cash-based incentive compensation over the first quarter of 2007 included a $4.1
million increase in commissions related to brokerage and trading revenue.

The Company also provides stock-based incentive compensation plans.  Stock-based
compensation  plans  include  both  equity and  liability  awards.  Compensation
expense related to liability  awards  increased $876 thousand  compared with the
first quarter of 2007.  This increase  reflected  changes in the market value of
BOK  Financial  common  stock.  The market value of BOK  Financial  common stock
increased  $0.53 per share in the first quarter of 2008 and decreased  $5.45 per
share in the first  quarter of 2007.  Compensation  expense  for  equity  awards
decreased  $131 thousand or 6% compared with the first quarter of 2007.  Expense
for  equity  awards is based on the  grant-date  fair value of the awards and is
unaffected by subsequent changes in fair value.

Employee  benefit expense totaled $14.0 million,  a $1.3 million or 11% increase
over  2007.  Medical  insurance  costs  were  up $1.1  million  or 35% due to an
increase in claims during the first quarter of 2008. The Company  self-insures a
portion of its employee health care coverage,  which increases the volatility of
this expense.

Data processing and communications expense

Data  processing  and  communications  expense  totaled $18.9  million,  up $1.9
million or 11% over the first  quarter of 2007.  This  expense  consists  of two
broad categories,  data processing systems and transaction card processing. Data
processing  costs  increased  $1.2  million  or 11% due to growth in  processing
volumes and  acquisitions  during the second quarter of 2007.  Transaction  card
processing  costs  increased  $720  thousand or 11% due to growth in  processing
volume.

Data  processing  and  communications  expense  decreased  $193  thousand  or 4%
annualized compared with the fourth quarter of 2007.

Other operating expenses

Occupancy and equipment  expenses totaled $15.1 million for the first quarter of
2008, up $1.9 million or 14% over 2007.  Growth in occupancy  expense was due to
28 new branch locations added since March 31, 2007, including 16 added from bank
acquisitions in the second quarter of 2007.  Occupancy and equipment expense was
down $405 thousand compared with the fourth quarter of 2007.

Insurance  expense  increased $3.0 million compared to the first quarter of 2007
due to an increase in FDIC  insurance  premiums.  A one-time  credit  granted to
eligible depository  institutions by the Federal Deposit Insurance Reform Act of
2005 to offset deposit insurance premiums was largely used by the end of 2007.

 8

Other  operating  expenses for the first quarter of 2008 included a $2.6 million
provision  for losses on  residential  mortgage  loans sold with  recourse.  The
Company's  obligation to repurchase  these loans is more-fully  discussed in the
Loan Commitments section of this report.  Other operating expenses for the first
quarter of 2008 were reduced by $2.8 million from the reversal of the contingent
liability to support Visa's  antitrust  litigation which was first recognized in
the fourth  quarter of 2007.  Visa  established an escrow fund with a portion of
the proceeds of its initial public  offering for payments  related to litigation
matters.



----------------------------------------------------------------------------------------------------------------------
Table 4 - Other Operating Expense
(In thousands)
                                                                   Three Months Ended
                                   ----------------------------------------------------------------------------------
                                      March 31,        Dec. 31,       Sept. 30,         June 30,         March 31,
                                        2008             2007           2007              2007             2007
                                   ----------------------------------------------------------------------------------
                                                                                      
Personnel                          $    88,106     $    84,512     $    85,811      $    80,054      $    78,328
Business promotion                       4,639           6,528           5,399            5,391            4,570
Professional fees and services           5,648           6,209           5,749            5,963            4,874
Net occupancy and equipment             15,061          15,466          14,752           13,860           13,206
Insurance                                3,710             843             759              693              722
Data processing & communications        18,893          19,086          18,271           18,402           16,974
Printing, postage and supplies           4,419           4,221           4,201            4,179            3,969
Net losses and operating
   expenses of repossessed assets          378             120             172              192              207
Amortization of intangible assets        1,925           2,382           2,397            1,443            1,136
Mortgage banking costs                   3,167           3,086           3,001            2,987            2,944
Change in fair value of mortgage
  servicing rights                       1,762           3,344           3,446           (5,061)           1,164
Other expense                            5,696          11,930           7,060            6,028            4,017
---------------------------------------------------------------------------------------------------------------------
  Total other operating expense    $   153,404     $   157,727     $   151,018      $   134,131      $   132,111
---------------------------------------------------------------------------------------------------------------------



Income Taxes

Income tax expense was $34.5 million or 36% of book taxable income for the first
quarter of 2008 compared  with $29.2  million or 36% of book taxable  income for
the first quarter of 2007.

BOK  Financial  operates  in numerous  jurisdictions,  which  requires  judgment
regarding the allocation of income,  expense and earnings under various laws and
regulations of each of these taxing  jurisdictions.  Each jurisdiction may audit
our tax  returns  and  may  take  different  positions  with  respect  to  these
allocations.  The reserve for uncertain tax positions was largely unchanged from
December 31, 2007.


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

 9

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.  Return on economic  capital
excludes amortization of intangible assets.

Net income  provided by the Company's  five principal  business lines  decreased
$1.7  million  compared  with the  first  quarter  of 2007.  Falling  short-term
interest rates decreased the internal  transfer pricing credit provided to units
that  generate  lower-costing  funds  for the  company.  The  effect  of a lower
internal transfer pricing credit is seen in the reduction in the business units'
net interest  revenue and the  increased  contribution  by the Funds  Management
unit. Gains recognized by the business lines from the partial redemption of Visa
Class B shares was partially  offset by increased  net loan losses  charged off.
The increased  contribution  by the Wealth  Management unit was due to brokerage
and trading activity.

--------------------------------------------------------------------------
Table 5 - Net Income by Line of Business
(In thousands)                               Three months ended March 31,
                                                  2008             2007
                                           -------------------------------
Regional banking                              $ 19,054         $ 24,910
Oklahoma corporate banking                      20,440           18,019
Mortgage banking                                  (977)              46
Oklahoma consumer banking                        9,242            9,461
Wealth management                               10,348            7,377
--------------------------------------------------------------------------
     Subtotal                                   58,107           59,813
Funds management and other                       4,158           (7,020)
--------------------------------------------------------------------------
     Total                                    $ 62,265         $ 52,793
--------------------------------------------------------------------------


Oklahoma Corporate Banking

The Oklahoma  Corporate  Banking Division  provides loan and lease financing and
treasury and cash  management  services to  businesses  throughout  Oklahoma and
certain  relationships in surrounding states. In addition to serving the banking
needs of small businesses, middle market and larger customers, this Division has
specialized groups that serve customers in the energy,  agriculture,  healthcare
and banking/finance industries, and includes the TransFund network. The Oklahoma
Corporate Banking Division  contributed $20.4 million or 33% to consolidated net
income for the first quarter of 2008. This Division contributed $18.0 million or
34% to consolidated net income in the first quarter of 2007.

Net interest revenue  decreased $1.4 million or 4%. The decrease in net interest
revenue  was due to  tightened  loan  spreads  compared  to funding  sources and
increased  non-accruing  loans.  Average  earnings  assets  attributed  to  this
division,  which consists primarily of commercial loans,  increased $130 million
or 3% over 2007 to $4.6 billion.  Average  loans  increased $31 million or 1% to
$4.4 billion.  Energy loans increased $125 million and indirect automobile loans
increased  $62 million.  Average food and  agri-business  loans  decreased  $157
million.  Average  funds  provided to the funds  management  unit  increased $98
million.  Average deposits attributed to the Oklahoma Corporate Banking Division
increased  $200  million  or 9%.  Operating  revenue  grew $2.9  million or 14%.
Operating revenue provided by TransFund increased $1.6 million or 19%. Operating
expenses,  which  consist  primarily of  personnel  and data  processing  costs,
increased $1.4 million or 5%.

A portion of the gain on  partial  redemption  of Visa Class B shares  increased
pre-tax income for the Oklahoma  Corporate  Banking Division $4.7 million in the
first quarter of 2008. Net loans charged off for the Oklahoma  Corporate Banking
Division  totaled $2.2 million or 0.18% of average loans in the first quarter of
2008, compared with net charge-offs of

 10

$1.3  million  or 0.12% of  average  loans in the  first  quarter  of 2007.  The
increase in net loan charge-offs  included a $517 thousand increase in losses on
indirect automobile loans.


Table 6 -  Oklahoma Corporate Banking
 (Dollars in Thousands)
                                            Three months ended March 31,
                                        ----------------------------------
                                               2008              2007
                                           ------------- --- -------------
NIR (expense) from external sources     $      52,410     $      59,773
NIR (expense) from internal sources           (16,176)          (22,172)
                                           -------------     -------------
Net interest revenue                           36,234            37,601

Other operating revenue                        23,856            20,995
Operating expense                              29,152            27,754
Gains on financial instruments, net             4,689                 -
Net loans charged off                           2,173             1,331
Net income                                     20,440            18,019

Average assets                          $   6,100,234     $   5,710,718
Average economic capital                      397,650           405,880

Return on assets                                 1.35%             1.28%
Return on economic capital                      20.67%            18.01%
Efficiency ratio                                48.51%            47.37%


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  and
BOSC's retail brokerage division.  Consumer banking services are offered through
34 locations in Tulsa, 32 locations in Oklahoma City and 16 locations throughout
the state.

The  Oklahoma  Consumer  Banking  Division  contributed  $9.2  million or 15% to
consolidated net income for the first quarter of 2008,  compared to $9.5 million
or 18% of  consolidated  net income for the first quarter of 2007.  Net interest
revenue  decreased  $1.4 million or 8% over 2007 due  primarily to a decrease in
the internal  transfer pricing credit.  Average loans attributed to the Oklahoma
Consumer  Banking  Division in 2008  increased  $23 million or 8% compared  with
2007.  Average deposits  provided by the Oklahoma Consumer Banking Division grew
$61 million or 2% to $3.0 billion.  Average demand  deposits were up $22 million
or 6%  over  2007.  Interest  bearing  deposits  increased  $39  million  or 2%,
including  a $147  million  or 13%  increase  in  interest  bearing  transaction
accounts and a $108  million or 7% decrease in time  deposits.  Other  operating
revenue was up $1.2  million or 7% over 2007 largely from check card revenue and
overdraft  fees.  Operating  expenses  increased  $1.5  million or 7% over 2007,
including  a $568  thousand  or 7%  increase  in  personnel  expense  and a $919
thousand or 7% increase in  non-personnel  expense.  The  increase in  operating
expense was largely due to higher deposit insurance costs.

Net loans  charged-off,  which consist  primarily of overdrawn deposit accounts,
totaled $562  thousand for the first  quarter of 2008 and $261  thousand for the
first  quarter of 2007.  Pre-tax  income for the first  quarter of 2008 included
$1.6 million from the partial redemption of Visa's Class B shares.

 11

Table 7 -  Oklahoma Consumer Banking
 (Dollars in Thousands)
                                          Three months ended March 31,
                                      ----------------------------------
                                             2008              2007
                                         -------------     -------------
NIR (expense) from external sources   $     (14,866)    $     (17,152)
NIR (expense) from internal sources          31,550            35,215
                                         -------------     -------------
Net interest revenue                         16,684            18,063

Other operating revenue                      19,066            17,879
Operating expense                            21,662            20,175
Gains on financial instruments, net           1,576                 -
Net loans charged off                           562               261
Net income                                    9,242             9,461

Average assets                        $   2,990,655     $   2,929,035
Average economic capital                     57,910            64,490

Return on assets                               1.24%             1.31%
Return on economic capital                    64.19%            59.50%
Efficiency ratio                              60.59%            56.13%


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.
BOk Mortgage  incurred a net loss of $977  thousand in the first quarter of 2008
compared to net income of $46 thousand in the first quarter of 2007. An increase
in the provision for  off-balance  sheet credit risk on mortgage loans sold with
recourse  reduced net income $1.6 million in the first quarter of 2008.  Changes
in the fair value of mortgage servicing rights, net of hedging activity, reduced
net income $960 thousand in 2008 and $556 thousand in 2007.

Mortgage banking activities consisted primarily 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. In addition,  the Mortgage
Banking  Division  holds a permanent  portfolio of $425  million of  residential
mortgage loans which  generated net income of $410 thousand in the first quarter
of 2008 and $332 thousand in the first quarter of 2007.

Loan Production Sector

Loan production revenue totaled $3.8 million in 2008,  including $4.4 million of
capitalized  mortgage  servicing  rights,  partially  offset  by net  losses  on
mortgage  loans sold.  Loan  production  revenue  totaled  $2.2 million in 2007.
Capitalized mortgage servicing rights provided $2.3 million, partially offset by
net losses on mortgage loans sold.  The average  initial fair value of servicing
rights on mortgage loans funded was 1.46% for 2008 and 1.36% for 2007.  Mortgage
loans   funded   totaled  $301  million  in  2008  and  $215  million  in  2007.
Approximately  58% and 15% of the loans funded  during the first quarter of 2008
were in Oklahoma and Texas, respectively.  Operating expenses,  excluding direct
loan production  costs which are recognized as part of the gain or loss on loans
sold,  totaled $3.5 million in 2008 and $2.6 million in 2007.  Pre-tax gain from
loan  production  totaled $987  thousand for the first  quarter of 2008 compared
with a pre-tax loss of $167 thousand for the first quarter of 2007. The pipeline
of mortgage loan applications  totaled $525 million at March 31, 2008,  compared
to $267 million at March 31, 2007 and $330 million at December 31, 2007.

Loan Servicing Sector

The loan  servicing  sector had a pre-tax  loss of $609  thousand  for the first
quarter of 2008  compared  with a pre-tax  loss of $871  thousand  for 2007.  We
recognized  a net pre-tax loss of $1.6 million in 2008 and a net pre-tax loss of
$910 thousand in 2007 from changes in the value of mortgage servicing rights and
economic hedging activities.  Changes in mortgage  commitment rates,  prepayment
speed  assumptions,  discount  rates and other  estimates  of future  activities
decreased the fair value of mortgage  servicing rights recognized in earnings by
$1.8 million in the first quarter of 2008. These same factors decreased the fair
value of mortgage  servicing  rights $1.2  million in 2007.  Changes in the fair
value of securities  designated as an economic hedge of our servicing rights did
not fully offset the decrease in value of our

 12

servicing rights. Economic hedge activity produced net gains of $191 thousand in
2008 and $254 thousand in 2007.

Servicing revenue,  including revenue on loans serviced for affiliates,  totaled
$4.9 million in 2008 compared to $4.3 million in 2007.  The average  outstanding
balance of loans  serviced  was $4.9  billion  during the first  quarter of 2008
compared to $4.4 billion during 2007.  Servicing  revenue per  outstanding  loan
principal  was 36 basis  points in 2008  compared  with 38 basis points in 2007.
Servicing costs totaled $1.9 million for the first quarters of 2008 and 2007. At
March 31, 2008,  the number of loans  serviced by BOk Mortgage  totaled  58,082.
Serviced loans  delinquent 90 days or more or in process of foreclosure  totaled
547 or 0.94% of loans  serviced;  349 of these loans are in Oklahoma,  56 are in
Arkansas and 42 are in Texas.

The fair value of mortgage  servicing  rights  decreased $3.5 million during the
first  quarter of 2008 and $3.2 million  during the first quarter of 2007 due to
actual runoff of the underlying loans serviced.  This reduction in fair value is
included in mortgage banking costs in the Consolidated Statement of Earnings.


Table 8 -  Mortgage Banking
 (Dollars in Thousands)
                                               Three months ended March 31,
                                           ----------------------------------
                                                  2008              2007
                                              -------------     -------------
NIR (expense) from external sources        $      11,652     $       7,815
NIR (expense) from internal sources               (9,121)           (6,952)
                                              -------------     -------------
Net interest revenue                               2,531               863

Capitalized mortgage servicing rights              4,405             2,349
Other operating revenue                            3,675             4,940
Operating expense                                 10,415             7,098
Change in fair value of mortgage servicing
   rights                                          1,762             1,164
Gains on financial instruments, net                  191               254
Net income (loss)                                   (977)               46

Average assets                             $     885,465     $     621,835
Average economic capital                          25,900            24,530

Return on assets                                   (0.44)%           0.03%
Return on economic capital                        (15.17)%           0.76%
Efficiency ratio                                   98.15%           87.07%


BOK Financial  designated a portion of its  securities  portfolio as an economic
hedge  against the risk of changes in the fair value of its  mortgage  servicing
rights.  These securities,  which are identified as mortgage trading  securities
are carried at fair value.  Changes in fair value are  recognized in earnings as
they occur.  Additionally,  mortgage-related  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. No special hedge  accounting  treatment is applicable to
either the mortgage servicing rights or the financial instruments  designated as
an economic hedge.

Our 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, 2008,  financial  instruments with a fair value of $183 million and
an unrealized gain of $2.7 million 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, 2008,
the pre-tax results of this modeling on reported earnings were:

 13

Table 9 - Interest Rate Sensitivity - Mortgage Servicing
(Dollars in Thousands)
                                           50 bp increase   50 bp decrease
Anticipated change in:
Fair value of mortgage servicing rights    $    3,153           $   (5,375)
Fair value of hedging instruments              (5,148)               5,094
                                          ----------------- ----------------
   Net                                     $   (1,995)          $     (281)
                                          ----------------- ----------------


Table 9 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 the fair value of our servicing rights $3.2 million while a
50 basis point decrease is expected to reduce the fair value $5.4 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. This is much less of a limit of the speed at which mortgage loans
may prepay in a declining rate environment.

Modeling  changes in the value of  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 the assumed loan prepayment  speeds
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 servicing rights and actual prepayments 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 trust and private financial services, and
brokerage and trading activities.  This line of business includes the activities
of BOSC,  Inc.,  a  registered  broker /  dealer.  Trust and  private  financial
services  includes sales of institutional,  investment and retirement  products,
loans and other  services to affluent  individuals,  businesses,  not-for-profit
organizations,  and governmental agencies. Trust services are provided primarily
to  clients  throughout  Oklahoma,  Texas and New  Mexico.  Additionally,  trust
services  include a nationally  competitive,  self-directed  401-(k) program and
administrative  and  advisory  services to the  American  Performance  family of
mutual funds. Brokerage and trading activities within the wealth management line
of business consists of retail sales of mutual funds, securities, and annuities,
institutional  sales of securities and derivatives,  bond underwriting and other
financial advisory services and customer risk management programs.

Wealth  Management  contributed  $10.3 million or 17% to consolidated net income
for  the  first  quarter  of  2008.  This  compared  to $7.4  million  or 14% of
consolidated net income for 2007.

Trust and private  financial  services  provided  $5.7  million of net income in
2008, down $241 thousand or 4% from 2007. Net interest revenue provided by trust
and private  financial  services  decreased $1.3 million or 14% due to the lower
funds  transfer  pricing  rate.  Average  deposits   attributed  to  the  Wealth
Management unit were $1.4 billion for the first quarter of 2008, up 25% over the
first quarter of 2007.

Trust fees and  commissions for the Wealth  Management line of business  totaled
$18.0 million,  a $1.7 million or 10% increase over last year. At March 31, 2008
and 2007,  the Wealth  Management  line of business  was  responsible  for trust
assets  with  aggregate  market  values  of $32.6  billion  and  $30.6  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
$12.7  billion of trust  assets at March 31, 2008  compared to $11.3  billion of
trust assets at March 31, 2007. The fair value of non-managed  assets  increased
$407  million to $12.3  billion at March 31,  2008.  Assets held in  safekeeping
totaled $7.5 billion at March 31, 2008.  Operating expenses  attributed to trust
and private  financial  services  totaled $16.8 million for the first quarter of
2008,  up 3% over the first  quarter of 2007.  Personnel  costs  decreased  $314
thousand due  primarily to lower  incentive  compensation  costs.  Non-personnel
costs increased $727 thousand or 11% due to higher deposit insurance costs.

Brokerage and trading activities  provided $4.6 million of net income in 2008 to
the  Wealth  Management  line of  business  compared  to $1.4  million  in 2007.
Operating  revenue  increased  $11.7 million or 86% due to brokerage and trading
revenue and fees earned on margin assets.  Operating  expenses,  which consisted
primarily of  compensation  expense  increased  $5.7  million or 53%.  Incentive
compensation expense which is directly related to revenue growth was up $4.9

 14

million.


Table 10 -  Wealth Management
 (Dollars in Thousands)
                                               Three months ended March 31,
                                          ----------------------------------
                                                 2008              2007
                                             -------------     -------------
NIR (expense) from external sources       $       2,994     $       4,525
NIR (expense) from internal sources               3,851             4,286
                                             -------------     -------------
Net interest revenue                              6,845             8,811

Other operating revenue                          43,881            30,533
Operating expense                                33,396            27,258
Net income                                       10,348             7,377

Average assets                            $   2,496,384     $   1,691,212
Average economic capital                        154,270           162,010

Return on assets                                   1.67%            1.77%
Return on economic capital                        26.98%           18.47%
Efficiency ratio                                  65.84%           69.28%


Regional Banking

Regional  banking  consists  primarily of the corporate and  commercial  banking
services  provided  by Bank of Texas,  Bank of  Albuquerque,  Bank of  Arkansas,
Colorado State Bank and Trust,  Bank of Arizona and Bank of Kansas City in their
respective  markets.  It also includes  fiduciary  services provided by Colorado
State Bank and Trust.  Small businesses and  middle-market  corporations are the
regional  banks' primary  customer focus.  Regional  banking  contributed  $19.1
million or 31% to consolidated net income during the first quarter of 2008. This
compares with $24.9 million or 47% of consolidated  net income in 2007.  Deposit
insurance  expense  had a  significant  effect on  regional  banking  due to its
deposit growth over the past several years.  Deposit  insurance  expense for all
regional  banks totaled $2.2 million for the first quarter of 2008 compared with
$314  thousand  for the  first  quarter  of 2007.  The  decrease  in net  income
contributed  by regional  banking came  primarily  from  operations in Texas and
Colorado.  Net income for 2008 in Texas and Colorado  decreased  $3.4 million or
25% and $1.5 million or 37%, respectively, from the previous year.

The  decrease in net income  provided by Texas  operations  was due to lower net
interest  revenue,   higher  operating  costs  and  an  increase  in  net  loans
charged-off.  Net  interest  revenue  decreased  $438  thousand or 1%.  Although
earning  assets  continued to grow,  net  interest  revenue  decreased  due to a
reduction  in the  transfer  pricing  credit  rate  paid to Bank of  Texas  as a
provider of funds to the Funds Management unit. Average earning assets increased
$433  million,  including  a $594  million  or 22%  increase  in  average  loans
partially  offset by a  decrease  in funds  sold to the funds  management  unit.
Average  loans  totaled  $3.2  billion  for the first  quarter  of 2008 and $2.7
billion for the first quarter of 2007.  Middle market loans were up $142 million
or 20% with solid growth in both Dallas-Fort Worth and Houston.  The acquisition
of Worth  National Bank added $135 million of average  outstanding  loans in the
Fort Worth  market.  Energy  loans  decreased  $26 million or 5% and real estate
loans  increased  $15 million or 4%.  Community  banking  loans  increased  $249
million  over last year due  primarily to growth in the Fort Worth  market.  The
growth in average  earning assets was funded  primarily by a $381 million or 14%
increase in average  deposits.  Average  deposits  totaled  $3.1 billion for the
first quarter of 2008 and $2.7 billion for the first quarter of 2007.  Corporate
banking deposits were up $99 million or 14%. Average  community banking deposits
increased  $143 million,  primarily in the Fort Worth market.  Consumer  banking
deposits also increased, up $103 million or 11%.

Other operating  revenue in the Texas market  increased $1.3 million or 21% over
2007 due  primarily  to a $819  thousand  increase  in deposit  fees.  Operating
expenses  were up $5.5 million or 25%,  including a $2.1 million or 17% increase
in personnel costs and a $3.4 million  increase in  non-personnel  expense.  The
increase in personnel  expense  included $700  thousand for Worth  National Bank
operations  personnel,  which  was  converted  onto  Bank of  Texas  systems  in
February,  2008.  Non-personnel  expense  included a $1.2  million  increase  in
deposit  insurance costs and a $550 thousand  increase in  amortization  expense
related to the Worth National Bank acquisition.

Net income  decreased  at our  Colorado  operations  $1.5  million  or 37%.  Net
interest  revenue  increased  $993  thousand or 10% over 2007.  Average  earning
assets attributed to our Colorado operations increased $256 million or 18%.

 15

Average  loans  totaled  $794  million  for the first  quarter of 2008,  up $108
million or 16% over 2007.  Energy loans in the  Colorado  market  increased  $19
million  or 7%.  Commercial  real  estate  loans  were  up $51  million  or 27%,
including  commercial  real  estate  loans  acquired  with  First  United  Bank.
Securities and funds sold to the funds  management  unit increased $147 million.
Average  deposits  increased  $235  million  or 27% to $1.1  billion,  including
consumer deposit growth of $97 million and wealth  management  deposit growth of
$117 million.

Other operating revenue increased $562 million or 18% due primarily to growth in
deposit service charges.  Deposit service charges were up $248 thousand or 106%,
including fees on deposit  accounts  acquired with First United Bank. Trust fees
and commission  increased $52 thousand or 2% over the first quarter of 2007. The
fair value of trust  assets  overseen by Colorado  State Bank and Trust was $2.9
billion at March 31, 2008, up $241 million or 9% from March 31, 2007.  Operating
expenses in Colorado increased $3.8 million or 56% over last year due largely to
personnel  and  operating  costs  associated  with First  United Bank along with
higher deposit insurance  expenses.  Personnel  expenses were up $1.0 million or
29%  and  occupancy  and  equipment  expenses  were up $871  thousand  or  128%,
including  additional expenses from the First United  acquisition.  First United
also increased intangible amortization expense $255 thousand.  Deposit insurance
expense for Colorado totaled $636 thousand for the first quarter of 2008 and $23
thousand for the first quarter of 2007.

Net income in New Mexico  totaled $5.7 million for the first  quarter  2008,  up
$152  thousand over 2007.  Net interest  revenue  increased  $415 thousand or 3%
while operating  revenue was up $314 thousand or 8%. Average loans increased $77
million or 11% to $794 million for the first quarter of 2008.  Commercial  loans
were up $39  million  and  commercial  real  estate  loans were up $26  million.
Average  deposits in the New Mexico market decreased $10 million or 1%. Consumer
deposits were down $15 million.  Operating  expenses  increased $634 thousand or
9%.

Net income from our  operations  in Arkansas  was up $167  thousand or 23%.  Net
interest  revenue  increased  $685  thousand or 33% due  primarily  to growth in
indirect  automobile loans.  Average indirect automobile loans were $165 million
for the first  quarter of 2008,  up $76 million or 86% over the first quarter of
2007.  Net loans charged off increased $431 thousand over the first quarter last
year. Auto loans charged off in the first quarter of 2008 totaled $609 thousand,
up $462 thousand over 2007.

Net income from our  operations  in Arizona  decreased  $495  thousand due to an
increase in net loans charged-off and higher operating costs. Net income for the
first  quarter of 2008 totaled $191  thousand  compared  with net income of $686
thousand for the first quarter of 2007. Net loans charged-off were $814 thousand
for the first quarter of 2008. No loans were charged off in the first quarter of
2007.

Net interest  revenue grew $348  thousand or 8%.  Average  loans  increased  $75
million or 16% to $553  million.  Small  business and middle  market  commercial
loans  increased $76 million  compared to 2007.  Average  commercial real estate
loans  decreased  $43  million in Phoenix and  increased  $40 million in Tucson.
Operating  expenses increased $438 thousand or 12%, including a $235 thousand or
11% increase in personnel costs.

We initiated  full-service  banking operations in the Kansas City market in late
2006. Currently,  we have one location in Overland Park, Kansas and one location
in Kansas City,  Missouri.  During the first quarter of 2008,  operations in the
Kansas  City  market  incurred a $781  thousand  net loss,  compared  with a $73
thousand net loss in the first quarter of 2007.  The  increased  loss was due to
loans  charged  off.  Net loans  charged off totaled  $1.7 million for the first
quarter of 2008,  including a $1.0 million  charge off of an  individual  cattle
loan,  compared  to $1  thousand  for the first  quarter of 2007.  Net  interest
revenue  increased  $762 thousand or 53% due to loan and deposit  growth.  Loans
were up $118 million,  including $89 million in food and agri-business  lending.
Deposits  were up $54 million.  Operating  expenses were up $543 thousand due to
the addition of a second location during 2007.

 16

Table 11 -  Bank of Texas
 (Dollars in Thousands)
                                                Three months ended March 31,
                                            ----------------------------------
                                                   2008              2007
                                               -------------     -------------
NIR (expense) from external sources         $      44,660     $      45,307
NIR (expense) from internal sources                (6,990)           (7,199)
                                               -------------     -------------
Net interest revenue                               37,670            38,108

Other operating revenue                             7,597             6,285
Operating expense                                  27,232            21,711
Gains on financial instruments, net                   258               185
Net loans charged off                               1,907             1,145
Net income                                         10,471            13,903

Average assets                              $   4,614,978     $   3,956,383
Average economic capital                          196,670           294,920
Average invested capital                          448,550          462,000

Return on assets                                     0.91%           1.43%
Return on economic capital                          21.41%          19.12%
Return on average invested capital                   9.39%          12.20%
Efficiency ratio                                    60.16%          48.91%


Table 12 -  Bank of Albuquerque
 (Dollars in Thousands)
                                                 Three months ended March 31,
                                             ----------------------------------
                                                    2008              2007
                                                -------------     -------------
NIR (expense) from external sources          $      17,087     $      17,711
NIR (expense) from internal sources                 (4,187)           (5,226)
                                                -------------     -------------
Net interest revenue                                12,900            12,485

Other operating revenue                              4,239             3,925
Operating expense                                    7,948             7,314
Gains on financial instruments, net                    190                50
Net loans charged off                                  113               131
Net income                                           5,660             5,508

Average assets                               $   1,809,840     $   1,538,373
Average economic capital                            98,060            87,870
Average invested capital                           117,150           106,960

Return on assets                                     1.26%             1.45%
Return on economic capital                          23.21%            25.42%
Return on average invested capital                  19.43%            20.88%
Efficiency ratio                                    46.37%            44.57%

 17

Table 13 - Bank of Arkansas
 (Dollars in Thousands)
                                                 Three months ended March 31,
                                             ----------------------------------
                                                    2008              2007
                                                -------------     -------------
NIR (expense) from external sources          $       4,263     $       3,441
NIR (expense) from internal sources                 (1,528)           (1,391)
                                                -------------     -------------
Net interest revenue                                 2,735             2,050

Other operating revenue                                355               334
Operating expense                                    1,063             1,041
Gains (losses) on financial instruments, net             7               (13)
Net loans charged off                                  574               142
Net income                                             892               725

Average assets                               $     411,831     $     282,367
Average economic capital                            23,300            18,280
Average invested capital                            23,300            18,280

Return on assets                                      0.87%            1.04%
Return on economic capital                           15.40%           16.08%
Return on average invested capital                   15.40%           16.08%
Efficiency ratio                                     34.40%           43.67%


Table 14 - Colorado State Bank and Trust
 (Dollars in Thousands)
                                                Three months ended March 31,
                                            ----------------------------------
                                                   2008              2007
                                               -------------     -------------
NIR (expense) from external sources         $      16,932     $      17,410
NIR (expense) from internal sources                (5,561)           (7,031)
                                               -------------     -------------
Net interest revenue                               11,371            10,379

Other operating revenue                             3,749             3,187
Operating expense                                  10,508             6,747
Gains on financial instruments, net                    66                67
Net loans charged off                                 417                74
Net income                                          2,621             4,161

Average assets                              $   1,912,216     $   1,557,792
Average economic capital                          106,030            72,020
Average invested capital                          161,330           127,320

Return on assets                                     0.55%            1.08%
Return on economic capital                           9.94%           23.43%
Return on average invested capital                   6.53%           13.25%
Efficiency ratio                                    69.50%           49.73%

 18

Table 15 - Bank of Arizona
 (Dollars in Thousands)
                                             Three months ended March 31,
                                          ----------------------------------
                                                 2008              2007
                                             -------------     -------------
NIR (expense) from external sources       $       8,790     $       9,557
NIR (expense) from internal sources              (3,867)           (4,982)
                                             -------------     -------------
Net interest revenue                              4,923             4,575

Other operating revenue                             276               184
Operating expense                                 4,074             3,636
Net loans charged off                               814                 -
Net income                                          191               686

Average assets                            $     594,469     $     552,591
Average economic capital                         53,230            47,660
Average invested capital                         69,880           64,310

Return on assets                                   0.13%            0.50%
Return on economic capital                         1.44%            5.84%
Return on average invested capital                 1.10%            4.33%
Efficiency ratio                                  78.36%           76.40%


Table 16 - Bank of Kansas City
 (Dollars in Thousands)
                                                Three months ended March 31,
                                            ----------------------------------
                                                   2008              2007
                                               -------------     -------------
NIR (expense) from external sources         $       4,950     $       4,276
NIR (expense) from internal sources                (2,738)           (2,826)
                                               -------------     -------------
Net interest revenue                                2,212             1,450

Other operating revenue                               768               461
Operating expense                                   2,572             2,029
Net loans charged off                               1,686                 1
Net loss                                             (781)              (73)

Average assets                              $     397,767     $     257,448
Average economic capital                           15,340             6,820
Average invested capital                           15,340            6,820

Return on assets                                    (0.79)%          (0.11)%
Return on economic capital                         (20.48)%          (4.34)%
Return on average invested capital                 (20.48)%          (4.34)%
Efficiency ratio                                    86.31%          106.17%


Financial Condition

Securities

Investment securities,  which consist primarily of Oklahoma municipal bonds, are
carried at cost and  adjusted  for  amortization  of  premiums or  accretion  of
discounts. At March 31, 2008, investment securities were carried at $256 million
and had a fair value of $256 million.  Management  has the ability and intent to
hold these securities until they mature.

Available for sale securities,  which may be sold prior to maturity, are carried
at fair value.  Unrealized gains or losses, less deferred taxes, are recorded as
accumulated other  comprehensive  income in shareholders'  equity. The amortized
cost of available  for sale  securities  totaled $5.7 billion at March 31, 2008,
down  $7.3  million  compared  with  the  previous   year-end.   Mortgage-backed
securities represented 96% of total available for sale securities.

 19

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
2.7 years at March 31,  2008 based on a range of  interest  rate and  prepayment
assumptions.  Management  estimates that the effective  duration would extend to
approximately  3.4  years  assuming  a 300 basis  point  immediate  rate  shock.
Mortgage-backed  securities also have credit risk from delinquency or default of
the underlying loans. The Company mitigates this risk by primarily  investing in
securities issued by U.S. government  agencies.  Principal and interest payments
on the underlying loans are either fully or partially guaranteed. Credit risk on
mortgage-backed  securities  originated  by  private  issuers  is  mitigated  by
investment in senior tranches with additional collateral support.

During the first half of 2007, the Company invested $41 million in variable rate
perpetual  preferred  stocks  issued by six major  banks and  brokerage  houses.
Although  these  issuers  remain  rated  investment  grade by the  major  rating
agencies and all scheduled  dividend payments have been made, the fair values of
these   stocks   declined   to  $33   million   at   December   31,   2007.   An
other-than-temporary  impairment  charge of $8.6 million was  recognized  in the
fourth quarter of 2007. The fair value of these stocks declined to $27.5 million
at March 31, 2008.  Based on widening credit spreads,  the duration and severity
of the  reduction  in  fair  value  and the  market's  negative  outlook  on the
financial  services sector for 2008, we determined that a recovery of fair value
to at least the cost  basis of these  securities  was not  expected  in the near
term. An additional  other-than-temporary  impairment charge of $5.3 million was
recognized in the first quarter of 2008.

Net unrealized  losses on available for sale  securities  totaled $28 million at
March 31, 2008  compared with net  unrealized  losses of $37 million at December
31, 2007.  The  aggregate  gross amount of  unrealized  losses at March 31, 2008
totaled $91 million.  Management evaluated the securities with unrealized losses
to  determine  if we believe  that the losses were  temporary.  This  evaluation
considered  factors such as causes of the  unrealized  losses and  prospects for
recovery over various  interest rate  scenarios and time periods.  The portfolio
does not hold any securities backed by sub-prime mortgage loans,  collateralized
debt obligations or collateralized loan obligations.  Approximately $390 million
of Alt-A  mortgage-backed  securities  were held at March 31,  2008 with a total
unrealized  loss  of  $22  million.   Approximately  80%  of  the  Alt-A  backed
securities,  including all Alt-A  mortgage-backed  securities originated in 2006
and 2007,  are AAA rated and are  credit  enhanced  with  additional  collateral
support.  Approximately  94%  of all of  our  Alt-A  mortgage-backed  securities
represent  pools of fixed-rate  mortgage  loans.  Management has evaluated these
securities  and believes that the unrealized  losses are due to market  interest
rates, credit spreads and liquidity. We expect to collect principal and interest
due on the securities.  We have considered our intent and ability to either hold
or  sell  the  securities.  It is  our  belief,  based  on  currently  available
information and our evaluation,  that the unrealized  losses in these securities
were temporary.

Certain mortgage-backed  securities,  identified as mortgage trading securities,
have been  designated as economic  hedges of mortgage  servicing  rights.  These
securities  are carried at fair value with changes in fair value  recognized  in
current period income.  These  securities are held with the intent that gains or
losses will offset changes in the fair value of mortgage  servicing rights.  The
Company  also  maintains  a  separate  trading   portfolio.   Trading  portfolio
securities,  which are also  carried at fair  value  with  changes in fair value
recognized in current  period  income,  are acquired and held with the intent to
sell at a profit to the Company.

Loans

The aggregate  loan  portfolio  before  allowance for loan losses  totaled $12.4
billion at March 31,  2008,  a $370  million or 12%  annualized  increase  since
December  31,  2007.  Loan  growth was  broadly  distributed  among the  various
segments of the portfolio and across all geographic markets.

 21


---------------------------------------------------------------------------------------------------------------------
Table 17 - Loans
(In thousands)
                                         March 31,        Dec. 31,       Sept. 30,        June 30,        March 31,
                                           2008             2007           2007             2007            2007
                                    ---------------------------------------------------------------------------------
Commercial:
                                                                                        
  Energy                             $   1,966,996    $   1,954,967   $   1,852,681   $   1,842,888    $   1,781,224
  Services                               1,784,723        1,721,143       1,671,291       1,686,650        1,596,844
  Wholesale/retail                       1,206,224        1,081,172       1,039,855       1,017,486        1,015,229
  Manufacturing                            542,297          493,185         536,631         596,002          622,329
  Healthcare                               733,086          680,294         648,871         606,965          642,876
  Agriculture                              248,345          236,860         259,904         313,247          309,439
  Other commercial and industrial          475,187          569,884         501,128         485,594          474,415
---------------------------------------------------------------------------------------------------------------------
      Total commercial                   6,956,858        6,737,505       6,510,361       6,548,832        6,442,356
---------------------------------------------------------------------------------------------------------------------

Commercial real estate:
  Construction and land development      1,066,096        1,004,547         975,764         916,526          925,762
  Multifamily                              236,787          214,388         234,182         221,069          249,080
  Other real estate loans                1,529,041        1,531,537       1,575,089       1,654,385        1,375,805
---------------------------------------------------------------------------------------------------------------------
      Total commercial real estate       2,831,924        2,750,472       2,785,035       2,791,980        2,550,647
---------------------------------------------------------------------------------------------------------------------

Residential mortgage:
  Secured by 1-4 family residential
    properties                           1,529,769        1,531,296       1,497,568       1,399,637        1,318,291
  Residential mortgages held for sale       91,905           76,677          73,488         116,257           75,011
---------------------------------------------------------------------------------------------------------------------
      Total residential mortgage         1,621,674        1,607,973       1,571,056       1,515,894        1,393,302
---------------------------------------------------------------------------------------------------------------------

Consumer:
  Indirect automobile                      685,803          625,203         592,207         554,150          500,663
  Other consumer                           291,401          296,094         292,505         288,526          256,326
---------------------------------------------------------------------------------------------------------------------
      Total consumer                       977,204          921,297         884,712         842,676          756,989
---------------------------------------------------------------------------------------------------------------------

  Total                              $  12,387,660    $  12,017,247   $  11,751,164   $  11,699,382    $  11,143,294
---------------------------------------------------------------------------------------------------------------------


The commercial loan portfolio increased $219 million during the first quarter of
2008 to $7.0 billion at March 31, 2008. Energy loans totaled $2.0 billion or 16%
of total loans.  Outstanding energy loans increased $12 million or 2% annualized
during the first quarter of 2008. Approximately $1.7 billion of energy loans was
to oil and gas producers,  up from $1.6 billion at December 31, 2007. The amount
of credit available to these customers  generally depends on a percentage of the
value of their proven energy  reserves based on anticipated  prices.  The energy
category also included  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 energy  category of our loan portfolio is
distributed $1.0 billion in Oklahoma,  $596 million in Texas and $295 million in
Colorado.

The services  sector of the loan portfolio  totaled $1.8 billion or 14% of total
loans  and  consists  of a large  number of loans to a  variety  of  businesses,
including communications, gaming and transportation services. Approximately $1.2
billion of the services category is made up of loans with individual balances of
less than $10 million.  Approximately $706 million of the outstanding balance of
services loans is attributed to Texas, $539 million to Oklahoma, $232 million to
New Mexico and $112 million to Arizona.

Other  notable loan  concentrations  by primary  industry of the  borrowers  are
presented in Table 17.

BOK Financial participates in shared national credits when appropriate to obtain
or maintain business relationships with local customers. Shared national credits
are defined by banking  regulators  as credits of more than $20 million and with
three or more  non-affiliated  banks as  participants.  At March 31,  2008,  the
outstanding principal balance of these loans totaled $1.8 billion. Substantially
all of these  loans  are to  borrowers  with  local  market  relationships.  BOK
Financial serves as the agent lender in approximately 28% of its shared national
credits,  based on dollars  committed.  The Company's lending policies generally
avoid loans in which we do not have the opportunity to maintain or achieve other
business relationships with the customer.

Commercial  real estate loans totaled $2.8 billion or 23% of the loan  portfolio
at March 31, 2008.  Over the past five years,  the percentage of commercial real
estate loans to our total loan portfolio ranged from 20% to 23%. The

 21

outstanding balance of commercial real estate loans increased $81 million or 12%
annualized  from the previous year end.  Growth in commercial  real estate loans
was located primarily in Oklahoma and Arizona. Commercial real estate loans were
up $52 million in Oklahoma and $18 million in Arizona.

Construction  and land  development  included  $806  million of loans for single
family  residential  lots and premises,  up $49 million since December 31, 2007.
Approximately  $304 million of our single family  residential  lots and premises
loans are attributed to the Oklahoma  market,  $233 million to the Texas market,
$128  million to the  Colorado  market and $104  million to the Arizona  market.
Other  commercial  real estate loans  included  $580  million in Oklahoma,  $449
million in Texas,  $173 million in New Mexico and $166  million in Arizona.  The
major components of other commercial real estate loans were retail  facilities -
$410 million and office buildings $414 million.

Residential mortgage loans, excluding loans held for sale, totaled $1.5 billion,
down $1.5  million  since  December 31,  2007.  At March 31,  2008,  residential
mortgage loans included $474 million of home equity loans, $463 million of loans
held for  business  relationship  purposes,  $425  million  of  adjustable  rate
mortgages and $140 million of loans held for community  development.  We have no
concentration  in  sub-prime   residential  mortgage  loans.  Our  portfolio  of
adjustable rate mortgage loans is generally  underwritten to prime standards and
does not include loans with initial rates that are below market.

At March 31, 2008,  consumer loans included $686 million of indirect  automobile
loans.  Approximately $462 million of these loans were purchased from dealers in
Oklahoma and $173 million were purchased from dealers in Arkansas. The remaining
$51 million were purchased from dealers in Texas. Indirect automobile loans grew
$61 million  during first quarter of 2008,  including $26 million in Texas,  $17
million  in  Oklahoma  and $17  million  in  Arkansas.  Approximately  7% of the
outstanding balance at March 31, 2008 is considered near-prime, which is defined
as loans to borrowers  that had poor credit in the past but have  re-established
credit over a period of time. We generally do not originate  sub-prime  indirect
automobile loans.

 22


---------------------------------------------------------------------------------------------------------------------
Table 18 - Loans by Principal Market Area
(In thousands)

                                         March 31,        Dec. 31,       Sept. 30,        June 30,        March 31,
                                           2008             2007           2007             2007            2007
                                    ---------------------------------------------------------------------------------
Oklahoma:
                                                                                        
   Commercial                        $   3,248,424    $   3,219,176   $   3,113,412   $   3,317,877    $   3,294,873
   Commercial real estate                  958,796          907,034         875,135         897,838          895,585
   Residential mortgage                  1,080,882        1,080,483       1,058,142         971,692          945,147
   Residential mortgage held for sale       91,905           76,677          73,488         112,596           75,011
   Consumer                                586,695          576,070         562,631         540,986          509,787
                                    ---------------------------------------------------------------------------------
     Total Oklahoma                  $   5,966,702    $   5,859,440   $   5,682,808   $   5,840,989    $   5,720,403
                                    ---------------------------------------------------------------------------------

Texas:
   Commercial                        $   2,124,192    $   1,985,645   $   1,941,731   $   1,856,049    $   1,797,262
   Commercial real estate                  838,781          846,303         913,910         888,118          721,207
   Residential mortgage                    262,305          275,533         266,850         263,344          216,087
   Consumer                                168,949          142,958         133,391         135,659          105,604
                                    ---------------------------------------------------------------------------------
     Total Texas                     $   3,394,227    $   3,250,439   $   3,255,882   $   3,143,170    $   2,840,160
                                    ---------------------------------------------------------------------------------

New Mexico:
   Commercial                        $     472,543    $     473,262   $     446,573   $     434,394    $     424,539
   Commercial real estate                  266,471          261,056         256,994         263,342          279,203
   Residential mortgage                     85,834           84,336          83,274          81,521           77,800
   Consumer                                 14,977           16,105          15,769          13,225           11,493
                                    ---------------------------------------------------------------------------------
     Total New Mexico                $     839,825    $     834,759   $     802,610   $     792,482    $     793,035
                                    ---------------------------------------------------------------------------------

Arkansas:
   Commercial                        $     100,489    $     106,328   $     117,993   $     103,534    $      96,084
   Commercial real estate                  130,956          124,317         107,588         102,537           97,190
   Residential mortgage                     16,621           16,393          18,411          22,508           21,825
   Consumer                                180,551          163,626         148,404         129,431          103,662
                                    ---------------------------------------------------------------------------------
     Total Arkansas                  $     428,617    $     410,664   $     392,396   $     358,010    $     318,761
                                    ---------------------------------------------------------------------------------

Colorado:
   Commercial                        $     486,525    $     490,373   $     491,204   $     480,097    $     457,758
   Commercial real estate                  261,099          252,537         247,802         274,610          199,736
   Residential mortgage                     31,011           26,556          26,322          18,516           15,501
   Consumer                                 17,552           16,457          18,623          18,470           17,746
                                    ---------------------------------------------------------------------------------
     Total Colorado                  $     796,187    $     785,923   $     783,951   $     791,693    $     690,741
                                    ---------------------------------------------------------------------------------

Arizona:
   Commercial                        $     174,360    $     157,341   $     147,103   $     124,765    $     120,351
   Commercial real estate                  335,717          318,170         349,840         326,951          316,661
   Residential mortgage                     50,719           46,269          43,510          43,192           41,731
   Consumer                                  6,815            5,522           5,491           4,683            8,654
                                    ---------------------------------------------------------------------------------
     Total Arizona                   $     567,611    $     527,302   $     545,944   $     499,591    $     487,397
                                    ---------------------------------------------------------------------------------

Kansas:
   Commercial                        $     350,325    $     305,380   $     252,345   $     232,116    $     251,489
   Commercial real estate                   40,104           41,055          33,766          38,584           41,065
   Residential mortgage                      2,397            1,726           1,059           2,525              200
   Consumer                                  1,665              559             403             222               43
                                    ---------------------------------------------------------------------------------
     Total Kansas                    $     394,491    $     348,720   $     287,573   $     273,447    $     292,797
                                    ---------------------------------------------------------------------------------
Total BOK Financial loans            $  12,387,660    $  12,017,247   $  11,751,164   $  11,699,382    $  11,143,294
                                    ---------------------------------------------------------------------------------



Loan Commitments

BOK Financial enters into certain  off-balance sheet  arrangements in the normal
course of business.  These arrangements  included loan commitments which totaled
$5.6 billion and standby  letters of credit which  totaled $572 million at March
31, 2008. Loan commitments may be unconditional obligations to provide financing
or conditional obligations that

 23

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.

The Company also has off-balance  sheet  commitments  for  residential  mortgage
loans sold with full or partial  recourse.  These  loans  consist of first lien,
fixed  rate  residential  mortgage  loans  originated  under  various  community
development  programs  and sold to U.S.  government  agencies.  These loans were
underwritten   to   standards   approved  by  the   agencies,   including   full
documentation. However, these loans have a higher risk of delinquency and losses
given default than traditional  residential  mortgage loans. A separate recourse
reserve is  maintained  as part of other  liabilities.  At March 31,  2008,  the
principal  balance of loans sold  subject to recourse  obligations  totaled $393
million and the recourse reserve totaled $6.3 million. Approximately 1.5% of the
loans sold with recourse is either  delinquent  more than 90 days, in bankruptcy
or in foreclosure.  The provision for mortgage loans sold with recourse was $2.6
million in the first quarter of 2008.  Actual losses  incurred  during the first
quarter of 2008 totaled $543  thousand.  The program to sell mortgage loans with
recourse was discontinued in the first quarter of 2008.

Derivatives with Credit Risk

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

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

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

Derivative  contracts  are carried at fair value.  At March 31,  2008,  the fair
values of derivative  contracts  reported as assets under these programs totaled
$711 million.  This included energy  contracts with fair values of $578 million,
interest rate  contracts  with fair values of $103 million and foreign  exchange
contracts  with fair values of $21  million.  The  aggregate  net fair values of
derivative contracts reported as liabilities totaled $378 million. As of January
1, 2008,  the  Company  adopted  FASB  Staff  Position  FIN 39-1  which  permits
offsetting of cash collateral  against the fair value of derivative  instruments
executed with the same counterparty under a master netting agreement.  The total
amount of derivative  liabilities  at March 31, 2008 was reduced by $341 million
of cash collateral.

Approximately  98% of the fair value of asset contracts was with customers.  The
credit risk of these contracts is generally backed by energy production or other
collateral.  The  remaining  2%  was  with  dealer  counterparties,   consisting
primarily of  highly-rated  financial  institutions  and energy  companies.  The
maximum net exposure to any single customer or counterparty totaled $88 million.

Our maximum net  exposure at March 31, 2008 was to SemGroup,  LP. Mr.  Thomas S.
Kivisto,  President and CEO of SemGroup, LP is a member of BOK Financial's board
of directors. Our exposure to SemGroup, LP consists primarily

 24

of option  contracts to sell oil and natural gas in varying  monthly  quantities
over the next seven  months.  The pricing,  collateral  and other terms of these
contracts are consistent with terms we offer to similarly risk-graded customers.

Summary of Loan Loss Experience

BOK  Financial  maintains  separate  reserves  for loan losses and  reserves for
off-balance sheet credit risk. Combined,  these reserves totaled $156 million or
1.27% of  outstanding  loans  at March  31,  2008 and $148  million  or 1.24% of
outstanding loans at December 31, 2007.

The reserve for loan losses, which is available to absorb losses inherent in the
loan  portfolio,  totaled  $137  million at March 31,  2008  compared  with $127
million at December  31,  2007.  These  amounts  represented  1.11% and 1.06% of
outstanding loans, excluding loans held for sale, at March 31, 2008 and December
31,  2007,  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  reserve for loan losses also
represented 123% of outstanding balance of nonperforming loans at March 31, 2008
compared  to 134% at  year-end  2007.  Net loans  charged  off  during the first
quarter of 2008  increased to $8.9 million in the first quarter of 2008 compared
to $7.3 million in the previous quarter and $3.1 million in the first quarter of
2007. The ratio of net loans charged off to average  outstanding loans was 0.29%
for the first quarter of 2008 compared with 0.25% in fourth  quarter of 2007 and
0.12% in the first quarter of 2007.  Net  commercial  loan and  commercial  real
estate loan charge-offs increased $1.3 million and $183 thousand,  respectively,
compared  with  the  previous  quarter.  Consumer  loan net  charge-offs,  which
includes  deposit  account  overdraft  losses,  increased  $124 thousand to $2.7
million.  Net charge-offs of indirect auto loans totaled $1.6 million or for the
first  quarter of 2008,  $618  thousand  for the first  quarter of 2007 and $1.0
million for the fourth quarter of 2007.

The  Company  considers  the credit  risk from loan  commitments  and letters of
credit in its  evaluation  of the  adequacy of the reserve  for loan  losses.  A
separate  reserve for  off-balance  sheet  credit risk is  maintained.  Table 19
presents  the trend of reserves  for  off-balance  sheet  credit  losses and the
relationship between the reserve and loan commitments.  The relationship between
the combined  reserve for credit losses and outstanding  loans is also presented
for  comparison  with peer banks and others who have not adopted  the  preferred
presentation.  The provision for credit losses  included the combined  charge to
expense for both the  reserve  for loan  losses and the reserve for  off-balance
sheet credit losses. All losses incurred from lending activities will ultimately
be reflected in charge-offs  against the reserve for loan losses following funds
advanced against outstanding  commitments and after the exhaustion of collection
efforts.

 25


------------------------------------------------------------------------------------------------------------------------------
Table 19 - Summary of Loan Loss Experience
(In thousands)
                                                                           Three Months Ended
                                            ----------------------------------------------------------------------------------
                                                 March 31,        Dec. 31,       Sept. 30,        June 30,        March 31,
                                                   2008             2007           2007            2007             2007
                                            ----------------------------------------------------------------------------------
Reserve for loan losses:
                                                                                               
Beginning balance                           $     126,677     $     121,932   $     119,759  $     114,371    $     109,497
   Loans charged off:
      Commercial                                    4,244             2,731           3,072          5,454            3,123
      Commercial real estate                        1,602             1,369             339             57               30
      Residential mortgage                            814               891             394            300              124
      Consumer                                      4,418             3,939           3,684          3,000            3,110
------------------------------------------------------------------------------------------------------------------------------
      Total                                        11,078             8,930           7,489          8,811            6,387
------------------------------------------------------------------------------------------------------------------------------
   Recoveries of loans previously charged off:
      Commercial                                      435               242           1,172          1,649            1,471
      Commercial real estate                           52                 2              30             37               41
      Residential mortgage                             58                19              86             15              189
      Consumer                                      1,676             1,321           1,332          1,338            1,567
------------------------------------------------------------------------------------------------------------------------------
      Total                                         2,221             1,584           2,620          3,039            3,268
------------------------------------------------------------------------------------------------------------------------------
Net loans charged off                               8,857             7,346           4,869          5,772            3,119
Provision for loan losses                          18,764            12,091           7,104          7,570            7,993
Adjustments due to acquisitions                         -                 -             (62)         3,590                -
------------------------------------------------------------------------------------------------------------------------------
Ending balance                              $     136,584     $     126,677   $     121,932  $     119,759    $     114,371
------------------------------------------------------------------------------------------------------------------------------
Reserve for off-balance sheet credit losses:
Beginning balance                           $      20,853     $      19,744   $      19,647  $      19,397    $      20,890
Provision for off-balance sheet credit losses      (1,193)            1,109              97            250           (1,493)
------------------------------------------------------------------------------------------------------------------------------
Ending balance                              $      19,660     $      20,853   $      19,744  $      19,647    $      19,397
------------------------------------------------------------------------------------------------------------------------------
Total provision for credit losses           $      17,571     $      13,200   $       7,201  $       7,820    $       6,500
------------------------------------------------------------------------------------------------------------------------------
Reserve for loan losses to loans outstanding
    at period-end (1)                                1.11%             1.06%           1.04%          1.03%            1.03%
Net charge-offs (annualized)
    to average loans (1)                             0.29              0.25            0.17           0.21             0.12
Total provision for credit losses (annualized)
    to average loans (1)                             0.58              0.45            0.25           0.28             0.24
Recoveries to gross charge-offs                     20.05             17.74           34.98          34.49            51.17
Reserve for loan losses as a multiple of net
    charge-offs (annualized)                         3.86x             4.31x           6.26x          5.19x            9.17x
Reserve for off-balance sheet credit losses to
    off-balance sheet credit commitments             0.32%             0.35%           0.33%          0.33%            0.34%
Combined reserves for credit losses to loans
    outstanding at period-end (1)                    1.27              1.24            1.21           1.20             1.21
------------------------------------------------------------------------------------------------------------------------------
(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, 2008,  specific  impairment
reserves  totaled $5.2 million on total impaired loans of $90 million.  Specific
impairment  reserves were $4.4 million on total impaired loans of $74 million at
December 31, 2007.

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.  At March 31,
2008 and  December  31,  2007,  the  ranges  of  potential  losses  for the more
significant factors were:


                                           March 31, 2008               December 31, 2007
                                          -----------------             -----------------
                                                                
General economic conditions    -    $6.0 million to $9.9 million    $3.8 million to $7.6 million
Concentration in large loans   -    $1.4 million to $2.9 million    $1.4 million to $2.8 million



Nonspecific  reserves attributed to general economic conditions increased in the
first  quarter of 2008.  Weakness in the economy  became  more  apparent  due to
rising  materials,  food and energy  prices  along with  continued  weakness  in
residential real estate markets.

 26

The provision  for credit losses  totaled $17.6 million for the first quarter of
2008,  $13.2  million  for the fourth  quarter of 2007 and $6.5  million for the
first  quarter of 2007.  Factors  considered  in  determining  the provision for
credit  losses  included  trends in net  losses  and  nonperforming  loans,  the
application of statistical  migration factors to loan growth and  concentrations
in commercial real estate and residential  homebuilder  loans. In addition,  the
outstanding balances of criticized and classified loans were increasing.


Nonperforming Assets

Information regarding  nonperforming assets, which totaled $126 million at March
31, 2008 and $104  million at  December  31,  2007,  is  presented  in Table 20.
Nonperforming  assets included  nonaccrual and  renegotiated  loans and excluded
loans 90 days or more past due but still accruing interest.  Total nonperforming
assets were 1.02% of period-end loans and repossessed  assets at March 31, 2008,
up  from  0.87%  at  December  31,  2007.   This  represents  a  return  of  the
nonperforming  assets to outstanding  loans and  repossessed  assets to 2002 and
2003 levels after near historic lows over the past three years.

Nonaccrual  loans  totaled  $99  million  at March 31,  2008 and $84  million at
December 31, 2007. Newly identified  nonaccrual loans totaled $32 million during
the first quarter of 2008.  Nonaccrual  loans  decreased  $9.7 million for loans
charged  off and  foreclosed,  and  $6.8  million  for cash  payments  received.
Approximately  $8.1 million of nonaccrual  loans are subject to the First United
Bank sellers' escrow.

Nonaccrual  commercial loans which totaled $42 million at March 31, 2008 and $43
million at December  31, 2007  consisted  primarily of loans in the services and
manufacturing sectors of the portfolio.  None of the nonaccrual commercial loans
exceeded $10 million.  Approximately $28 million of nonaccrual  commercial loans
are to borrowers in the Oklahoma market,  $5 million are in the Colorado market,
$3 million are in the Texas market and $2 million are in the New Mexico market.

Nonaccrual  commercial  real estate loans  totaled $40 million at March 31, 2008
and $25  million at  December  31,  2007.  Approximately  $29  million are loans
secured by single-family  residential  properties or lots, including $16 million
in  Arizona,  $6.6  million in  Oklahoma  and $2.1  million in  Colorado.  Other
significant  nonaccrual  commercial  real estate loans  included $5.3 million of
retail facilities in New Mexico.

In addition to nonaccrual  loans,  nonperforming  assets included $12 million of
renegotiated loans and $15 million of real estate and other repossessed  assets.
Renegotiated  loans  consisted  of  residential   mortgage  loans  and  indirect
automobile  loans whose original terms have been  modified.  Approximately  $8.4
million of  renegotiated  loans are  residential  mortgage  loans  guaranteed by
agencies of the U.S.  government.  Approximately $1.9 million of real estate and
other repossessed assets are subject to the First United Bank sellers' escrow.

 27


----------------------------------------------------------------------------------------------------------------------
 Table 20 - Nonperforming Assets
(In thousands)
                                                   March 31,      Dec. 31,      Sept. 30,    June 30,      March 31,
                                                     2008           2007          2007         2007          2007
                                               -----------------------------------------------------------------------
Nonaccrual loans:
                                                                                         
   Commercial                                   $    41,966   $    42,981    $    21,168  $    20,456   $    14,218
   Commercial real estate                            40,399        25,319         11,355       19,470         6,832
   Residential mortgage                              15,960        15,272         11,469       11,418         9,920
   Consumer                                             812           718            705          675           364
----------------------------------------------------------------------------------------------------------------------
   Total nonaccrual loans                            99,137        84,290         44,697       52,019        31,334
Renegotiated loans (3)                               11,850        10,394         10,752       10,113         9,947
----------------------------------------------------------------------------------------------------------------------
   Total nonperforming loans                        110,987        94,684         55,449       62,132        41,281
Other nonperforming assets                           15,112         9,475         10,627        7,664         8,414
----------------------------------------------------------------------------------------------------------------------
   Total nonperforming assets                   $   126,099   $   104,159    $    66,076  $    69,796   $    49,695
----------------------------------------------------------------------------------------------------------------------
Nonaccrual loans by principal market:
    Oklahoma                                   $     52,211  $     47,977    $    24,628  $    26,529  $     22,803
    Texas                                             8,157         4,983          4,921        6,176         5,462
    New Mexico                                        7,497        11,118          6,542        7,025           943
    Arkansas                                          2,866         1,635            843          816           814
    Colorado (4)                                      8,101         9,222          5,688        8,067         1,127
    Arizona                                          18,811         9,355          2,075        3,406           185
    Kansas                                            1,494             -              -            -             -
----------------------------------------------------------------------------------------------------------------------
    Total nonaccrual loans                     $     99,137  $     84,290    $    44,697  $    52,019  $     31,334
----------------------------------------------------------------------------------------------------------------------
Nonaccrual loans by loan portfolio sector:
    Commercial:
          Energy                               $        475  $        529    $       536  $       542  $        535
          Manufacturing                               9,274         9,915          8,858        8,705           100
          Wholesale / retail                          3,868         3,792          3,850        2,838         4,176
          Agriculture                                 1,848           380            540          769         1,752
          Services                                   23,849        25,468          5,987        6,843         5,851
          Healthcare                                  2,079         2,301            963          509         1,647
          Other                                         573           596            434          250           157
----------------------------------------------------------------------------------------------------------------------
               Total commercial                      41,966        42,981         21,168       20,456        14,218
    Commercial real estate:
          Land development and construction          29,439        13,466          7,289        9,333         4,120
          Multifamily                                 1,906         3,998          1,238        2,233           311
          Other commercial real estate                9,054         7,855          2,828        7,904         2,401
----------------------------------------------------------------------------------------------------------------------
               Total commercial real estate          40,399        25,319         11,355       19,470         6,832
    Residential mortgage                             15,960        15,272         11,469       11,418         9,920
    Consumer                                            812           718            705          675           364
----------------------------------------------------------------------------------------------------------------------
    Total nonaccrual loans                     $     99,137  $     84,290    $    44,697  $    52,019  $     31,334
----------------------------------------------------------------------------------------------------------------------
Ratios:
Reserve for loan losses to nonperforming loans      123.06%       133.79%        219.90%      192.75%       277.05%
Nonperforming loans to period-end loans (1)           0.90          0.79           0.47         0.54          0.37
----------------------------------------------------------------------------------------------------------------------
Loans past due (90 days)  (2)                  $    11,266   $     5,575     $    3,986   $    4,215   $    20,623
----------------------------------------------------------------------------------------------------------------------

(1) Excludes residential mortgage loans held for sale.
(2) Includes residential mortgages guaranteed
     by agencies of the U.S. Government.       $        788  $      1,017    $     1,806  $     2,028  $      1,728
(3) Includes residential mortgages guaranteed
     by agencies of the U.S. Government.
     These loans have been modified to extend
     payment terms and/or reduce interest             8,386         7,550          7,083        6,430         6,030
     rates to current market.
(4) Includes loans subject to First United
     Bank sellers escrow.                             8,101         8,412          4,677        6,944             -
----------------------------------------------------------------------------------------------------------------------


 28

The loan review process also identified  loans that possess more than the normal
amount of risk due to deterioration  in the financial  condition of the borrower
or the value of the  collateral.  Because the borrowers are still  performing in
accordance  with  the  original  terms of the  loan  agreements,  and no loss of
principal  or  interest  is  anticipated,  these  loans  were  not  included  in
Nonperforming Assets. Known information does, however,  cause management concern
as to the  borrowers'  ability to comply with  current  repayment  terms.  These
potential problem loans totaled $31 million at March 31, 2008 and $49 million at
December 31, 2007. The current composition of potential problem loans by primary
industry  included  real  estate  -  $3.7  million,  healthcare  - $19  million,
manufacturing  - $2.2 million and  services - $3.3  million.  Potential  problem
healthcare loans consisted primarily of loans to an assisted living facility and
a medical practice in the Oklahoma market.


Deposits

Deposit  accounts  represent  our  primary  funding  source.   Average  deposits
represented  approximately  64% of total  liabilities  and capital for the first
quarter  of 2008,  down from 68% for the first  quarter  of 2007 and 65% for the
fourth  quarter of 2007.  The  decrease  in average  deposits  relative to other
funding  sources is due largely to the  structuring  of our balance  sheet to be
relatively  neutral to changes in interest rates. Other borrowed funds increased
during 2007 to fund an increase in average securities to implement this interest
rate risk management strategy.  In addition,  competition has increased the cost
of deposits compared to other funding sources in many of our markets.

Average  deposits  totaled  $13.1  billion for the first quarter of 2008, a $1.0
billion  or 9%  increase  over  the  first  quarter  of 2007.  Average  deposits
increased $78 million or 2% annualized compared with the fourth quarter of 2007.

Interest-bearing  transaction  deposit  accounts  continued to grow in the first
quarter of 2008,  up $1.4 billion or 23% over the first quarter of 2007 and $458
million  or 26%  annualized  over the  fourth  quarter  of 2007.  Time  deposits
decreased  $195 million or 4% from the first quarter of 2007 and $320 million or
28%  annualized  from the fourth  quarter of 2007.  Funds continue to shift from
time  deposits to  interest-bearing  transaction  accounts due to interest  rate
differences  between  these  deposit  types.  At the same time,  average  demand
deposit  accounts  decreased $161 million compared with the same quarter of last
year and $57 million compared with the previous quarter. Core deposits, which we
define as deposits of less than  $100,000,  excluding  public funds and brokered
deposits,  averaged $6.5 billion for the first quarter of 2008, $5.9 billion for
the first  quarter  of 2007 and $6.6  billion  for the  fourth  quarter of 2007.
Accounts  with balances in excess of $100,000  averaged  $5.4  billion,  for the
first  quarter  of 2008,  $5.0  billion  for the first  quarter of 2007 and $5.3
billion for the fourth quarter of 2007.

Average  commercial  banking deposits totaled $4.6 billion for the first quarter
of 2008, up $491 million or 12% over last year.  Commercial  deposit  growth was
primarily  centered in  Oklahoma  and Texas.  Consumer  deposits  averaged  $5.5
billion for the first quarter of 2008, up $257 million or 5% over 2007.  Average
consumer  deposits were up $97 million or 18% in the Colorado market,  including
First United Bank deposits and $103 million or 11% in Texas, including the Worth
National Bank  acquisition.  Wealth  management  deposit accounts  averaged $1.9
billion for 2008, a $399 million or 27% increase over 2007.  Approximately  $282
million of the increase  was in the Oklahoma  market and $117 million was in the
Colorado market.

The  distribution  of deposit  accounts among our principal  markets is shown in
Table 21.

 29



---------------------------------------------------------------------------------------------------------------------
Table 21 - Deposits by Principal Market Area
(In thousands)
                                         March 31,        Dec. 31,       Sept. 30,        June 30,        March 31,
                                           2008            2007            2007             2007            2007
                                    ---------------------------------------------------------------------------------
Oklahoma:
                                                                                        
   Demand                            $     999,214   $     936,160    $     717,478   $     876,671    $     877,623
   Interest-bearing:
     Transaction                         4,124,046       3,935,909        3,473,547       3,470,896        3,481,859
     Savings                                88,141          80,467           83,139          88,133           92,678
     Time                                2,230,110       2,426,822        2,725,992       2,798,719        2,556,423
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                6,442,297       6,443,198        6,282,678       6,357,748        6,130,960
                                    ---------------------------------------------------------------------------------
     Total Oklahoma                  $   7,441,511   $   7,379,358    $   7,000,156   $   7,234,419    $   7,008,583
                                    ---------------------------------------------------------------------------------
Texas:
   Demand                            $     651,781   $     738,105    $     597,534   $     626,193    $     602,315
   Interest-bearing:
     Transaction                         1,996,784       2,050,872        1,978,920       2,019,311        1,701,382
     Savings                                32,191          34,618           35,310          36,989           24,558
     Time                                  759,892         800,460          893,018         804,877          682,292
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                2,788,867       2,885,950        2,907,248       2,861,177        2,408,232
                                    ---------------------------------------------------------------------------------
     Total Texas                     $   3,440,648   $   3,624,055    $   3,504,782   $   3,487,370    $   3,010,547
                                    ---------------------------------------------------------------------------------
New Mexico:
   Demand                            $     103,329   $      93,923    $     109,854   $     113,579    $     126,111
   Interest-bearing:
     Transaction                           492,096         490,227          479,204         521,154          464,569
     Savings                                16,141          15,146           16,437          17,662           17,972
     Time                                  455,861         486,868          512,497         500,443          485,662
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                  964,098         992,241        1,008,138       1,039,259          968,203
                                    ---------------------------------------------------------------------------------
     Total New Mexico                $   1,067,427   $   1,086,164    $   1,117,992   $   1,152,838    $   1,094,314
                                    ---------------------------------------------------------------------------------
Arkansas:
   Demand                            $      16,661   $       9,755    $      10,225   $      11,030    $      10,980
   Interest-bearing:
     Transaction                            25,923          22,519           22,401          22,096           21,762
     Savings                                   945             883              993           1,011            1,029
     Time                                   39,803          40,692           43,401          46,597           54,687
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                   66,671          64,094           66,795          69,704           77,478
                                    ---------------------------------------------------------------------------------
     Total Arkansas                  $      83,332   $      73,849    $      77,020   $      80,734    $      88,458
                                    ---------------------------------------------------------------------------------
Colorado:
   Demand                            $      51,901   $      60,250    $      42,194   $      42,006    $      39,821
   Interest-bearing:
     Transaction                           577,454         504,116          432,188         426,031          314,506
     Savings                                22,233          23,806           27,143          35,152           12,092
     Time                                  455,262         539,523          608,962         549,676          502,880
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                1,054,949       1,067,445        1,068,293       1,010,859          829,478
                                    ---------------------------------------------------------------------------------
     Total Colorado                  $   1,106,850   $   1,127,695    $   1,110,487   $   1,052,865    $     869,299
                                    ---------------------------------------------------------------------------------
Arizona:
   Demand                            $      28,592   $      29,807    $      25,295   $      31,196    $      29,461
   Interest-bearing:
     Transaction                           102,564          82,682           98,611          74,892           67,364
     Savings                                   878           1,435            1,269           1,233            1,367
     Time                                    8,395          11,603           13,314          11,563           10,018
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                  111,837          95,720          113,194          87,688           78,749
                                    ---------------------------------------------------------------------------------
     Total Arizona                   $     140,429   $     125,527    $     138,489   $     118,884    $     108,210
                                    ---------------------------------------------------------------------------------
Kansas:
   Demand                            $       5,341   $       7,946    $       7,849   $       1,081    $         325
   Interest-bearing:
     Transaction                             9,993          10,014            3,169           1,356              670
     Savings                                    92              13               15              12               11
     Time                                   33,837          24,670           23,119          32,695           28,166
                                    ---------------------------------------------------------------------------------
   Total interest-bearing                   43,922          34,697           26,303          34,063           28,847
                                    ---------------------------------------------------------------------------------
     Total Kansas                    $      49,263   $      42,643    $      34,152   $      35,144    $      29,172
                                    ---------------------------------------------------------------------------------
Total BOK Financial deposits         $  13,329,460   $  13,459,291    $  12,983,078   $  13,162,254    $  12,208,583
                                    ---------------------------------------------------------------------------------



 30

Borrowings and Capital

BOK Financial  (parent company) has a $188 million  unsecured  revolving line of
credit  with  certain  commercial  banks that  matures  in  December  2010.  The
outstanding  principal balance of this credit agreement was $50 million at March
31, 2008. Interest is based upon a base rate or LIBOR plus a defined margin that
is determined by the Company's credit rating.  This margin ranges from 0.375% to
1.125% or a base rate.  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 0.5% 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.  BOK Financial met all of
the restrictive covenants at March 31, 2008.

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  $117  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 $97
million under this policy.

Equity capital for BOK Financial  increased $57.2 million to $2.0 billion during
the first quarter of 2008.  Retained  earnings,  net income less cash  dividends
paid,  provided $48.8 million of this increase.  Accumulated other comprehensive
losses  decreased $5.6 million during the first quarter of 2008 due primarily to
lower net  unrealized  losses on available for sale  securities.  Employee stock
option  transactions  increased  equity  capital $7.4 million and treasury stock
purchases reduced capital $4.7 million.

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

On April 26, 2005, the Board of Directors authorized a share repurchase program,
which  replaced a  previously  authorized  program.  The  maximum of two million
common  shares  may be  repurchased.  The  specific  timing and amount of shares
repurchased will vary based on market conditions, securities law limitations and
other  factors.  Repurchases  may be made over time in open market or  privately
negotiated transactions. The repurchase program may be suspended or discontinued
at any time without prior notice.  Since this program began, 709,073 shares have
been  repurchased by the Company for $35.4 million.  During the first quarter of
2008, 91,114 shares were repurchased for $4.7 million.

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

For a banking institution to qualify as well capitalized,  its Tier 1, Total and
Leverage  capital ratios must be at least 6%, 10% and 5%,  respectively.  All of
the Company's banking subsidiaries  exceeded the regulatory  definitions of well
capitalized.  The capital ratios for BOK Financial on a  consolidated  basis are
presented in Table 22.

 31


--------------------------------------------------------------------------------------------------------------------
Table 22 - Capital Ratios                    March 31,       Dec. 31,      Sept. 30,      June 30,      March 31,
                                               2008            2007           2007          2007          2007
                                          --------------------------------------------------------------------------
Average shareholders' equity
                                                                                            
  to average assets                            9.69%           9.48%          9.42%          9.65%         9.75%
Tangible capital ratio                         7.83%           7.72%          7.67%          7.50%         8.58%
Risk-based capital:
  Tier 1 capital                               9.56            9.38           9.30           9.12          9.97
  Total capital                               12.73           12.54          12.53          12.36         11.76
Leverage                                       8.23            8.20           8.17           8.30          8.95



Off-Balance Sheet Arrangements

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

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 un-pledged
assets,  among  other  things.  Compliance  with these  guidelines  is  reviewed
monthly.

Interest Rate Risk - Other than Trading

As  previously  noted  in the Net  Interest  Revenue  section  of  this  report,
management has implemented  strategies to manage the Company's  balance sheet to
be relatively  neutral to changes in interest  rates over a twelve month period.
The effectiveness of these strategies in managing the overall interest rate risk
is evaluated through the use of an asset/liability model. BOK Financial performs
a sensitivity  analysis to identify more dynamic  interest rate risk  exposures,
including  embedded option positions,  on net interest  revenue,  net income and
economic value of equity.  A simulation  model is used to estimate the effect of
changes in interest rates over the next 12 and 24 months based on eight interest
rate  scenarios.  Two  specified  interest  rate  scenarios are used to evaluate
interest  rate risk against  policy  guidelines.  The first  assumes a sustained
parallel 200 basis point  increase and the second  assumes a sustained  parallel
100 basis point decrease in interest rates.  Management  historically  evaluated
interest rate  sensitivity  for a sustained 200 basis point decrease in interest
rates.  However,  the results of a 200 basis point decrease in interest rates in
the current low-rate environment are not meaningful. The Company also performs a
sensitivity  analysis  based on a "most likely"  interest rate  scenario,  which
includes non-parallel shifts in interest rates. An independent source is used to
determine the most likely interest rate scenario.

 32

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


Table 23 - Interest Rate Sensitivity
 (Dollars in Thousands)
                                      200 bp Increase                100 bp Decrease                Most Likely
                                 --------------------------    ---------------------------    -------------------------
                                     2008         2007            2008          2007             2008         2007
                                 ------------- ------------    ------------ --------------    ------------ ------------
Anticipated impact over the
   next twelve months on
                                                                                               
   net interest revenue           $(15,711)     $ (4,733)      $    3,031       ***            $ (6,633)      $  1,404
                                      (2.5)%        (0.8)%            0.5%      ***                (1.0)%          0.2%
-------------------------------- --------------- ------------ --- ----------- -------------- -- ----------- ------------
***A 100 basis point decrease was not computed in 2007. A 200 basis point
decrease in interest rates was expected to increase net interest revenue by $1.4
million or 0.2%.



Trading Activities

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

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

Management  uses a Value at Risk ("VAR")  methodology to measure the market risk
inherent in its trading  activities.  VAR is  calculated  based upon  historical
simulations  over the past five years  using a variance /  covariance  matrix of
interest rate changes.  It represents an amount of market loss that is likely to
be exceeded only one out of every 100 two-week  periods.  Trading  positions are
managed within guidelines  approved by the Board of Directors.  These guidelines
limit the VAR to $1.8 million. At March 31, 2008, the VAR was $884 thousand. The
greatest  value at risk during the first quarter of 2008 was $1.9  million.  The
value at risk guideline was exceeded with appropriate approvals by management to
take  advantage  of wide  yields  available  on  certain  securities  during the
quarter.


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

 33

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.

 34


--------------------------------------------------------- ---- ----------- --- --------------
Consolidated Statements of Earnings (Unaudited)
(In Thousands Except Share and Per Share Data)
                                                                    Three Months Ended
                                                                         March 31,
                                                                  2008             2007
                                                               ----------- --- --------------
Interest Revenue
                                                                      
Loans                                                       $    199,384    $    212,825
Taxable securities                                                72,055          57,594
Tax-exempt securities                                              2,685           3,028
--------------------------------------------------------- ---- ----------- --- --------------
   Total securities                                               74,740          60,622
--------------------------------------------------------- ---- ----------- --- --------------
Trading                                                            1,077             464
securities
Funds sold and resell agreements                                     840             665
--------------------------------------------------------- ---- ----------- --- --------------
   Total interest revenue                                        276,041         274,576
--------------------------------------------------------- ---- ----------- --- --------------
Interest Expense
Deposits                                                          88,147          97,872
Borrowed funds                                                    35,367          42,663
Subordinated debentures                                            5,399           5,203
--------------------------------------------------------- ---- ----------- --- --------------
   Total interest expense                                        128,913         145,738
--------------------------------------------------------- ---- ----------- --- --------------
Net Interest Revenue                                             147,128         128,838
Provision for Credit Losses                                       17,571           6,500
--------------------------------------------------------- ---- ----------- --- --------------
Net Interest Revenue After Provision for Credit Losses           129,557         122,338
--------------------------------------------------------- ---- ----------- --- --------------
Other Operating Revenue
Brokerage and trading revenue                                     23,913          13,282
Transaction card revenue                                          23,558          20,184
Trust fees and commissions                                        20,796          18,995
Deposit service charges and fees                                  27,686          24,598
Mortgage banking revenue                                           7,217           5,520
Bank-owned life insurance                                          2,512           2,399
Other revenue                                                      8,182           6,609
--------------------------------------------------------- ---- ----------- --- --------------
Total fees and commissions                                       113,864          91,587
--------------------------------------------------------- ---- ----------- --- --------------
Gain (loss) on sales of assets                                       (35)            694
Gain (loss) on securities, net                                     4,620            (563)
Gain on derivatives, net                                           2,113              71
--------------------------------------------------------- ---- ----------- --- --------------
Total other operating revenue                                    120,562          91,789
--------------------------------------------------------- ---- ----------- --- --------------
Other Operating Expense
Personnel                                                         88,106          78,328
Business promotion                                                 4,639           4,570
Professional fees and services                                     5,648           4,874
Net occupancy and equipment                                       15,061          13,206
Insurance                                                          3,710             722
Data processing and communications                                18,893          16,974
Printing, postage and supplies                                     4,419           3,969
Net losses and operating expenses of repossessed  assets             378             207
Amortization of intangible assets                                  1,925           1,136
Mortgage banking costs                                             3,167           2,944
Change in fair value of mortgage servicing rights                  1,762           1,164
Other expense                                                      5,696           4,017
--------------------------------------------------------- ---- ----------- --- --------------
Total other operating expense                                    153,404         132,111
--------------------------------------------------------- ---- ----------- --- --------------
Income Before Taxes                                               96,715          82,016
Federal and state income tax                                      34,450          29,223
--------------------------------------------------------- ---- ----------- --- --------------
Net Income                                                  $     62,265    $     52,793
--------------------------------------------------------- ---- ----------- --- --------------

Earnings Per Share:
--------------------------------------------------------- ---- ----------- --- --------------
   Basic                                                    $       0.93    $      0.79
--------------------------------------------------------- ---- ----------- --- --------------
   Diluted                                                  $       0.92    $      0.78
--------------------------------------------------------- ---- ----------- --- --------------

Average Shares Used in Computation:
--------------------------------------------------------- --- ------------ --- --------------
   Basic                                                       67,202,128      67,085,310
--------------------------------------------------------- --- ------------ --- --------------
   Diluted                                                     67,549,960      67,574,671
--------------------------------------------------------- --- ------------ --- --------------

--------------------------------------------------------- --- ------------ --- --------------
Dividends Declared per Share                               $       0.20     $      0.15
--------------------------------------------------------- --- ------------ --- --------------


See accompanying notes to consolidated financial statements.

 35


--------------------------------------------------------------------------------------------------------------------
Consolidated Balance Sheets
(In Thousands Except Share Data)
                                                                   March 31,       December 31,        March 31,
                                                                      2008             2007               2007
                                                                  --------------------------------------------------
                                                                   (Unaudited)      (Footnote 1)        (Unaudited)
Assets
                                                                                          
Cash and due from banks                                        $      642,224    $      717,259    $      559,264
Funds sold and resell agreements                                       23,291           173,154            13,988
Trading securities                                                     93,081            45,724            46,079
Securities:
  Available for sale                                                5,145,575         5,323,001         4,434,600
  Available for sale securities pledged to creditors                  506,645           327,539           351,716
  Investment (fair value:  March 31, 2008 - $255,900;
    December 31, 2007 - $248,788;
    March 31, 2007 - $235,406)                                        256,255           247,949           241,436
  Mortgage trading securities                                         182,533           154,701           131,524
--------------------------------------------------------------------------------------------------------------------
    Total securities                                                6,091,008         6,053,190         5,159,276
--------------------------------------------------------------------------------------------------------------------
Loans                                                              12,387,660        12,017,247        11,143,294
Less reserve for loan losses                                         (136,584)         (126,677)         (114,371)
--------------------------------------------------------------------------------------------------------------------
  Loans, net of reserve                                            12,251,076        11,890,570        11,028,923
--------------------------------------------------------------------------------------------------------------------
Premises and equipment, net                                           261,814           258,786           193,244
Accrued revenue receivable                                            128,224           138,243           111,782
Intangible assets, net                                                366,051           368,353           257,350
Mortgage servicing rights, net                                         69,794            70,009            68,120
Real estate and other repossessed assets                               15,112             9,475             8,414
Bankers' acceptances                                                   12,590             1,780             3,093
Derivative contracts                                                  716,173           502,446           220,120
Cash surrender value of bank-owned life insurance                     228,786           229,540           214,730
Receivable on unsettled securities trades                                   -            10,071            45,873
Other assets                                                          226,727           199,101           151,183
--------------------------------------------------------------------------------------------------------------------
         Total assets                                          $   21,125,951    $   20,667,701    $   18,081,439
--------------------------------------------------------------------------------------------------------------------

Liabilities and Shareholders' Equity
Noninterest-bearing demand deposits                            $    1,856,819    $    1,875,946    $    1,686,636
Interest-bearing deposits:
  Transaction                                                       7,328,860         7,096,339         6,052,112
  Savings                                                             160,621           156,368           149,707
  Time (includes $139,016 at fair value at March 31, 2008)          3,983,160         4,330,638         4,320,128
--------------------------------------------------------------------------------------------------------------------
  Total deposits                                                   13,329,460        13,459,291        12,208,583
--------------------------------------------------------------------------------------------------------------------
Funds purchased and repurchase agreements                           2,910,237         3,225,131         2,511,210
Other borrowings                                                    1,802,388         1,027,564           852,118
Subordinated debentures                                               398,306           398,273           298,819
Accrued interest, taxes and expense                                   133,939           124,029           108,524
Bankers' acceptances                                                   12,590             1,780             3,093
Due on unsettled security transactions                                 16,824                 -                 -
Derivative contracts                                                  378,243           341,677           160,138
Other liabilities                                                     151,394           154,572           153,006
--------------------------------------------------------------------------------------------------------------------
         Total liabilities                                         19,133,381        18,732,317        16,295,491
--------------------------------------------------------------------------------------------------------------------
Shareholders' equity:
Common stock ($.00006 par value; 2,500,000,000
  shares authorized; shares issued and outstanding:
  March 31, 2008 - 69,670,728; December 31, 2007
  -  69,465,154; March 31, 2007 - 68,944,949)                               4                 4                 4
Capital surplus                                                       731,452           722,088           699,488
Retained earnings                                                   1,381,797         1,332,954         1,208,418
Treasury stock (shares at cost:  March 31, 2008 - 2,287,410;
  December 31, 2007 - 2,158,774;
  March 31, 2007 - 1,717,899)                                         (95,007)          (88,428)          (65,639)
Accumulated other comprehensive loss                                  (25,676)          (31,234)          (56,323)
--------------------------------------------------------------------------------------------------------------------
         Total shareholders' equity                                 1,992,570         1,935,384         1,785,948
--------------------------------------------------------------------------------------------------------------------
         Total liabilities and shareholders' equity            $   21,125,951    $   20,667,701    $   18,081,439
--------------------------------------------------------------------------------------------------------------------

See accompanying notes to consolidated financial statements.

 36


---------------------------------------------------------------------------------------------------------
Consolidated Statements of Changes in
Shareholders' Equity (Unaudited)
(In Thousands)

                                          Accumulated
                          Common Stock       Other                           Treasury Stock
                       ----------------- Comprehensive  Capital  Retained -------------------
                         Shares   Amount      Loss      Surplus  Earnings   Shares    Amount      Total
                       ----------------------------------------------------------------------------------
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
---------------------------------------------------------------------------------------------------------

Balances at
  December 31, 2007      69,465   $    4  $ (31,234) $ 722,088 $1,332,954  2,159    $(88,428) $1,935,384
Effect of
   implementing FAS 159,
   net of income taxes        -        -          -          -         62      -           -          62
Comprehensive income:
   Net income                 -        -          -          -     62,265      -           -      62,265
   Other comprehensive
     income, net of tax (1)   -        -      5,558          -          -      -           -       5,558
                                                                                               -----------
    Comprehensive income                                                                          67,823
                                                                                               -----------
Treasury stock purchase       -        -          -          -          -     91      (4,655)     (4,655)
Exercise of stock options   206        -          -      6,095          -     37      (1,924)      4,171
Tax benefit on exercise
   of stock options           -        -          -        336          -      -           -         336
Stock-based compensation      -        -          -      2,933          -      -           -       2,933
Cash dividends on
   common stock               -        -          -         -     (13,484)     -           -     (13,484)
---------------------------------------------------------------------------------------------------------

Balances at
    March 31, 2008       69,671   $    4  $ (25,676) $ 731,452 $1,381,797  2,287    $(95,007) $1,992,570
---------------------------------------------------------------------------------------------------------



(1)                                              March 31, 2008     March 31, 2007
                                                 --------------     --------------
Changes in other comprehensive loss:
                                                                
  Unrealized gains on securities                     $  13,136        $   25,673
  Unrealized gains on cash flow hedges                     117               363
  Tax benefit on unrealized gains                       (4,721)           (9,277)
  Reclassification adjustment for (gains)
    losses realized and included in net income          (4,620)              563
  Reclassification adjustment for tax
    expense (benefit) on realized (gains) losses         1,646              (201)
                                                --------------------------------------
Net change in other comprehensive loss               $   5,558        $   17,121
                                                --------------------------------------


See accompanying notes to consolidated financial statements.

 37


---------------------------------------------------------------------------------------------------------------------------
Consolidated Statements of Cash Flows (Unaudited)
(In Thousands)                                                                        Three Months Ended March 31,
                                                                              ---------------------------------------------
                                                                                      2008                      2007
                                                                              ---------------------------------------------
Cash Flows From Operating Activities:
                                                                                                  
Net income                                                                      $     62,265            $     52,793
Adjustments to reconcile net income to net cash provided by operating
activities:
  Provision for credit losses                                                         17,571                   6,500
  Change in fair value of mortgage servicing rights                                    1,762                   1,164
  Unrealized gains from derivatives                                                   (6,630)                 (4,370)
  Tax benefit on exercise of stock options                                              (336)                 (1,039)
  Change in bank-owned life insurance                                                    754                  (2,499)
  Stock-based compensation                                                             3,202                   1,535
  Depreciation and amortization                                                       13,951                   9,555
  Net (accretion) amortization of securities discounts and premiums                   (3,007)                    899
  Net gain on sale of assets                                                          (7,086)                 (2,532)
  Mortgage loans originated for resale                                              (242,040)               (166,724)
  Proceeds from sale of mortgage loans held for resale                               272,729                 152,612
  Change in trading securities, including mortgage trading securities                (74,853)                 22,666
  Change in accrued revenue receivable                                                10,019                  (4,258)
  Change in other assets                                                              (6,317)                 96,241
  Change in accrued interest, taxes and expense                                        9,910                   3,772
  Change in other liabilities                                                        (24,968)                (69,384)
---------------------------------------------------------------------------------------------------------------------------
Net cash provided by operating activities                                             26,926                  96,931
---------------------------------------------------------------------------------------------------------------------------
Cash Flows From Investing Activities:
  Proceeds from maturities of investment securities                                    6,002                  13,978
  Proceeds from maturities of available for sale securities                          277,176                 240,519
  Purchases of investment securities                                                 (14,349)                 (6,765)
  Purchases of available for sale securities                                      (1,339,379)               (814,351)
  Proceeds from sales of available for sale securities                             1,076,776                 469,223
  Loans originated or acquired net of principal collected                           (385,663)               (392,604)
  Proceeds from derivative asset contracts                                           158,536                  32,500
  Net change in other investment assets                                                   33                   8,108
  Proceeds from disposition of assets                                                  1,610                  42,098
  Purchases of assets                                                                (25,837)                (15,933)
  Acquisition of bank charter                                                              -                    (425)
---------------------------------------------------------------------------------------------------------------------------
  Net cash used in investing activities                                             (245,095)               (423,652)
---------------------------------------------------------------------------------------------------------------------------
Cash Flows From Financing Activities:
  Net change in demand deposits, transaction deposits and savings accounts           217,647                 (27,704)
  Net change in time deposits                                                       (349,101)               (148,705)
  Net change in other borrowings                                                     459,930                 421,081
  Payments on derivative liability contracts                                        (158,251)                (27,628)
  Net change in derivative margin accounts                                          (190,217)                 44,760
  Change in amount receivable (due) on unsettled security transactions                26,895                (153,293)
  Issuance of common and treasury stock, net                                           4,171                   4,434
  Tax benefit on exercise of stock options                                               336                   1,039
  Repurchase of common stock                                                          (4,655)                 (1,256)
  Dividends paid                                                                     (13,484)                (10,081)
---------------------------------------------------------------------------------------------------------------------------
Net cash provided by (used in) financing activities                                   (6,729)                102,647
---------------------------------------------------------------------------------------------------------------------------
Net decrease in cash and cash equivalents                                           (224,898)               (224,074)
Cash and cash equivalents at beginning of period                                     890,413                 797,326
---------------------------------------------------------------------------------------------------------------------------
Cash and cash equivalents at end of period                                      $    665,515            $    573,252
---------------------------------------------------------------------------------------------------------------------------


Cash paid for interest                                                          $    128,551            $    146,637
---------------------------------------------------------------------------------------------------------------------------
Cash paid for taxes                                                             $      2,653            $      1,546
---------------------------------------------------------------------------------------------------------------------------
Net loans transferred to repossessed real estate and other assets               $      1,314            $        925
---------------------------------------------------------------------------------------------------------------------------


See accompanying notes to consolidated financial statements.

 38

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
2007 Form 10-K filed with the Securities and Exchange Commission, which contains
audited  financial  statements.  Amounts  presented as of December 31, 2007 have
been derived from BOK Financial's 2007 Form 10-K.

Newly Adopted and Pending Accounting Policies

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

As of January 1, 2008, the Company adopted Financial Accounting Standards Board
Staff Position FIN 39-1, which permits offsetting of cash collateral against the
fair value of derivative instruments executed with the same counterparty under a
master netting agreement. The total amount of derivative liabilities at March
31, 2008 was reduced by $341 million of cash collateral.

Statement of Financial Accounting Standards No. 160, "Noncontrolling Interest in
Consolidated Financial Statements,  an amendment of ARB Statement No. 51," ("FAS
160") amends Accounting Research Bulletin (ARB) No. 51, "Consolidated  Financial
Statements,"   to  establish   accounting   and  reporting   standards  for  the
non-controlling  interest  in a  subsidiary  and  for the  deconsolidation  of a
subsidiary.  FAS 160 clarifies that a non-controlling  interest in a subsidiary,
which is sometimes referred to as minority interest, is an ownership interest in
the consolidated  entity that should be reported as a component of equity in the
consolidated  financial statements.  Among other requirements,  FAS 160 requires
consolidated  net income to be  reported  at amounts  that  include  the amounts
attributable  to both  the  parent  and the  non-controlling  interest.  It also
requires  disclosure,  on the face of the consolidated income statement,  of the
amounts  of  consolidated  net  income  attributable  to the  parent  and to the
non-controlling  interest.  FAS 160 is  effective  for the Company on January 1,
2009 and is not expected to have a significant impact on the Company's financial
statements.

Statement  of  Financial  Accounting  Standards  No.  161,   "Disclosures  About
Derivative  Instruments and Hedging  Activities,  an Amendment of FASB Statement
No. 133," ("FAS 161") amends and expands the disclosure requirements of FAS 133,
"Accounting  for  Derivative  Instruments  and Hedging  Activities,"  to provide
greater   transparency   about  (i)  how  and  why  an  entity  uses  derivative
instruments,  (ii) how  derivative  instruments  and  related  hedge  items  are
accounted  for under  SFAS 133 and its  related  interpretations,  and (iii) how
derivative  instruments  and related  hedged items affect an entity's  financial
position,  results of operations and cash flows. To meet those  objectives,  FAS
161 requires  qualitative  disclosures about objectives and strategies for using
derivatives,  quantitative  disclosures  about fair  value  amounts of gains and
losses on derivative instruments and disclosures about

 39

credit-risk-related  contingent  features in derivative  agreements.  FAS 161 is
effective  for the  Company  on January  1, 2009 and is not  expected  to have a
significant impact on the Company's financial statements.

(2) Fair Value Measurements

Fair value measurements as of March 31, 2008 are as follows (in thousands):



                                                           Quoted Prices    Significant
                                                             in Active         Other         Significant
                                                            Markets for      Observable     Unobservable
                                                  Total      Identical         Inputs          Inputs
                                                            Instruments
                                              ----------- ---------------- --------------- ----------------
   Assets:
                                                                                    
    Trading securities                           $93,081    $      11,804       $81,277
    Available for sale securities              5,652,220           27,542     5,624,678
    Mortgage trading securities                  182,533                        182,533
    Mortgage servicing rights                     69,794                                       69,794 (1)
    Derivative contracts                         716,173                        716,173

   Liabilities:
    Certificates of deposit                      139,016                        139,016
    Derivative contracts                         719,598                        719,598


(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 4, 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, credit
     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 2008. 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.

Certain  certificates  of deposit  were  designated  as carried at fair value as
permitted by FAS 159. These certificates have been converted from fixed interest
rates to variable  interest  rates based on LIBOR with interest rate swaps.  The
fair value election for these liabilities  better represents the economic effect
of these  instruments  on the  Company.  At March 31,  2008,  the fair value and
contractual  principal  amount of these  certificates  was $139 million and $138
million, respectively. Change in the unrealized loss during the first quarter of
2008  of  $1.6  million  is  included  in  Gains  on  Derivatives,  net  on  the
Consolidated Statement of Earnings.

 40

(3) Derivatives

The fair  values of  derivative  contracts  at March 31, 2008 are as follows (in
thousands):

                                                  Assets      Liabilities
                                              ----------- --- ------------
   Customer Risk Management Programs:
         Interest rate contracts                $103,240        $107,144
         Energy contracts                        577,961         582,250
         Agriculture contracts                     4,900           4,703
         Foreign exchange contracts               21,227          21,227
         CD options                                4,013           4,012
--------------------------------------------- ----------- --- ------------
   Fair value before cash collateral             711,341         719,336
       Less:  cash collateral                          -        (341,355)
--------------------------------------------- ----------- --- ------------
     Total Customer Derivatives                  711,341         377,981

   Interest Rate Risk Management Programs          4,832             262
--------------------------------------------- ----------- --- ------------
     Total Derivative Contracts                 $716,173        $378,243
--------------------------------------------- ----------- --- ------------


As of January 1, 2008, the Company adopted Financial  Accounting Standards Board
Staff Position FIN 39-1, which permits offsetting of cash collateral against the
fair value of derivative instruments executed with the same counterparty under a
master netting  agreement.  The total amount of derivative  liabilities at March
31, 2008 was reduced by $341 million of cash collateral.


(4) Mortgage Banking Activities

At March 31, 2008,  BOK Financial  owned the rights to service  58,082  mortgage
loans with  outstanding  principal  balances  of $5.6  billion,  including  $624
million  serviced  for  affiliates.  The  weighted  average  interest  rate  and
remaining term was 6.16% and 280 months, respectively.

For the three months  ended March 31, 2008 and 2007,  mortgage  banking  revenue
includes servicing fee income of $4.3 million and $4.2 million, respectively.

Activity  in  capitalized   mortgage  servicing  rights  and  related  valuation
allowance  during the three  months  ending  March 31,  2008 is as  follows  (in
thousands):


                                               Capitalized Mortgage Servicing Rights
                                             ------------------------------------------
                                               Purchased     Originated       Total
                                             --------------- ------------ -------------
                                                                   
Balance at December 31, 2007                 $    13,906   $    56,103   $    70,009
Additions, net                                         -         4,405         4,405
Change in fair value due to loan runoff             (607)       (2,251)       (2,858)
Change in fair value due to market changes          (388)       (1,374)       (1,762)
-------------------------------------------- -- ---------- -- ---------- -- -----------
Balance at March 31, 2008                    $    12,911   $    56,883   $    69,794
-------------------------------------------- -- ---------- -- ---------- -- -----------


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

 41


                                                             March 31, 2008        December 31, 2007
                                                        ---------------------     --------------------

                                                                                     
Discount rate - risk-free rate plus a market premium              9.36%                    10.02%

Prepayment rate - based upon loan interest rate,
  original term and loan type                                 6.5% - 15.3%              6.8% - 15.2%

Loan servicing costs - annually per loan based upon
  loan type                                                     $43 - $70                $43 - $70

Escrow earnings rate - indexed to rates paid on deposit
  accounts with comparable average life                           4.52%                     5.01%


 42


Stratification  of  the  mortgage  loan  servicing   portfolio  and  outstanding
principal  of loans  serviced  by interest  rate at March 31,  2008  follows (in
thousands):


                                               < 5.51%      5.51% - 6.50%    6.51% - 7.50%    > 7.50%       Total
------------------------------------------ ---------------- --------------- ---------------- ----------- -------------

                                                                                            
Fair value                                  $   13,755         $   38,465      $    14,438    $   3,136    $   69,794
------------------------------------------ ---------------- --------------- ---------------- ----------- -------------

Outstanding principal of loans serviced (1) $  993,200         $2,677,600      $ 1,029,800    $ 196,300    $4,896,900
------------------------------------------ ---------------- --------------- ---------------- ----------- -------------


(1)  Excludes  outstanding  principal  of $624  million for loans  serviced  for
     affiliates  and $39  million  of  mortgage  loans  for  which  there are no
     capitalized mortgage servicing rights.


(5)  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,
                                      -------------------------------------
                                          2008                   2007
                                      --------------        ----------------
Proceeds                           $    1,076,776        $      469,223
Gross realized gains                        5,571                   944
Gross realized losses                      (2,624)               (1,761)
Related federal and state income
   tax expense (benefit)                    1,897                  (291)


(6) 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
and made no Pension Plan  contributions  during the three months ended March 31,
2008 and March 31, 2007.

Management  has been advised that no minimum  contribution  will be required for
2008. The maximum allowable contribution for 2008 has not yet been determined.


(7) Shareholders' Equity

On April 29, 2008, the Board of Directors of BOK Financial  Corporation approved
a $0.225 per share quarterly common stock dividend.  The quarterly dividend will
be payable on or about May 29, 2008 to shareholders of record on May 15, 2008.

Dividends  declared  during the three  months ended March 31, 2008 and 2007 were
$0.20 per share and $0.15 per share, respectively.

 43

(8)  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,    March 31,
                                                               2008         2007
                                                          ---------------------------
Numerator:
                                                                   
   Net income                                               $  62,265    $  52,793
-------------------------------------------------------------------------------------
Denominator:
   Denominator for basic earnings per share - weighted
     average shares                                        67,202,128   67,085,310
   Effect of dilutive potential common shares:
     Employee stock compensation plans (1)                    347,832      489,361
-------------------------------------------------------------------------------------

Denominator for diluted earnings per share - adjusted
   weighted average shares and assumed conversions         67,549,960   67,574,671
-------------------------------------------------------------------------------------
Basic earnings per share                                      $  0.93      $  0.79
-------------------------------------------------------------------------------------
Diluted earnings per share                                    $  0.92      $  0.78
-------------------------------------------------------------------------------------

(1) Excludes employee stock options with exercise
    prices greater than current market price.                 557,624      771,442



(9)  Reportable Segments

Reportable segments  reconciliation to the Consolidated Financial Statements for
the three months ended March 31, 2008 is as follows (in thousands):


                                                  Net            Other          Other
                                               Interest        Operating       Operating       Net Income        Average
                                                Revenue       Revenue(1)        Expense                          Assets
                                              ------------ -- ------------ -- ------------- -- ----------- -- --------------
                                                                                            
Total reportable segments                  $      134,105  $      111,867  $      149,784   $      58,107  $   22,213,839
Unallocated items:
   Tax-equivalent adjustment                        2,154               -               -           2,154               -
   Funds management and other                      10,869           1,962           3,620           2,004      (1,716,786)
                                              ------------ -- ------------ -- ------------- -- ----------- -- --------------

BOK Financial consolidated                 $      147,128  $      113,829  $      153,404   $      62,265  $   20,497,053
                                              ============ == ============ == ============= == =========== == ==============


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


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  $       91,072  $      125,927   $      59,813  $   19,097,754
Unallocated items:
   Tax-equivalent adjustment                        2,085               -               -           2,085               -
   Funds management and other                      (7,632)          1,209           6,184         (9,105)      (1,233,633)
                                              ------------ -- ------------ -- ------------- -- ----------- -- --------------

BOK Financial consolidated                 $      128,838  $       92,281  $      132,111   $      52,793  $   17,864,121
                                              ============ == ============ == ============= == =========== == ==============


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

 44

(10)  Contingent Liabilities

In September 2006, BISYS settled the SEC's two-year  investigation of BISYS Fund
Services Ohio, Inc. ("BISYS") marketing assistance  agreements with 27 different
families of mutual  funds,  including a BISYS  marketing  arrangement  with AXIA
which had been  terminated  effective  January 1, 2004.  In the SEC  settlement,
BISYS  consented  to an  order  in  which  the SEC  determined  that  BISYS  had
"willfully  aided and  abetted and  caused"  the 27  investment  advisors to (i)
violate  provisions  of the  Investment  Advisors  Act  of  1940  that  prohibit
fraudulent  conduct;  (ii) violate  provisions of the 1940 Act that prohibit the
making of any untrue  statement of a material fact in a  registration  statement
filed by the mutual fund with the SEC, and (iii) violate  provisions of the 1940
Act that require the disclosure and inclusion of all  distribution  arrangements
and expenses in the fund's 12b-1 fee plan ("the SEC BYSIS Order").  AXIA was one
of the 27 advisors and the AP Funds one of the 27 mutual fund  families to which
the SEC  referred in its BISYS  Order.  On October 10,  2006,  the  Examinations
Division of the  Securities  and Exchange  Commission  (the "SEC")  conducted an
examination of AXIA. The  examination  was concluded in July 2007 with no action
taken by the  Examinations  Division.  In August  2007,  AXIA settled all claims
relating to the BISYS marketing  arrangements with the AP Funds for $2.2 million
and the AP Funds regard the matter as fully  concluded.  The settlement with the
AP Funds is not binding on the SEC.

On April 7, 2008,  AXIA and its parent,  BOK,  received a Wells  notice from the
regional  office  of  the  SEC in Los  Angeles  indicating  that  the  staff  is
considering  recommending  that the SEC bring a civil injunctive  action against
AXIA and BOK for  violations  of Section  17(a) of the  Securities  Act of 1955,
Section 10(b) of the Securities Exchange Act of 1934, Sections 206(1) and (2) of
the  Investment  Advisors  Act of 1940,  and  Sections  12(b)  and  34(b) of the
Investment  Company Act of 1940. BOK and AXIA have been  cooperating  fully with
the SEC in connection  with these matters that arose prior to December 31, 2003.
BOK and  AXIA  are not  bound  by the SEC  BISYS  Order,  disagree  with the SEC
position  as it relates to BOK and AXIA,  and intend to respond to the SEC Wells
notice.

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.

During  the  fourth  quarter  of 2007,  Visa  announced  that it had  recognized
liabilities  related to antitrust  litigation with American Express and Discover
and that it was subject to other litigation.  As a member of Visa, BOK Financial
is obligated for a proportionate  share of losses incurred by Visa. A contingent
liability  was  recognized  for  the  Company's   share  of  Visa's   litigation
liabilities.

During the first quarter of 2008,  Visa completed  it's initial public  offering
and funded a $3.0 billion escrow account for litigation  claims including claims
by American Express and Discover.  BOK Financial recognized a receivable for its
proportionate  share  of  this  escrow  account,  which  equals  the  contingent
liability previously recognized.

In addition,  during the first  quarter of 2008 BOK Financial  received  410,562
Visa Class B shares.  A partial  redemption  of Class B shares was completed and
the  Company  received  $6.8  million in cash in exchange  for  158,725  Class B
shares.  The remaining  251,837 Class B shares are convertible into Visa Class A
shares at the later of three  years  after  the date of  Visa's  initial  public
offering or the final settlement of all covered litigation. The current exchange
rate is approximately  0.71 Class A share for each Class B share.  However,  the
Company's  Class B shares may be diluted in the future if the escrow fund is not
adequate to cover future covered  litigation costs.  Therefore,  under currently
issued accounting  guidance no value has been currently  assigned to the Class B
shares and no value may be assigned  until the Class B shares are converted into
a known number of Class A shares.

 45

(11) 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,  2008,  outstanding  commitments  and  letters of credit were as
follows (in thousands):

                                        March 31,
                                         2008
                                     --------------
Commitments to extend credit         $ 5,565,601
Standby letters of credit                572,116
Commercial letters of credit              11,374

 46






------------------------------------------------------------------------------------------------------------------------------
Quarterly Financial Summary - Unaudited
Consolidated Daily Average Balances, Average Yields and Rates
(Dollars in Thousands, Except Per Share Data)

                                                                           Three Months Ended
                                         -------------------------------------------------------------------------------------
                                                        March 31, 2008                            December 31, 2007
                                         ------------------------------------------      -------------------------------------
                                              Average        Revenue/    Yield /         Average        Revenue/    Yield /
                                              Balance       Expense(1)     Rate          Balance       Expense(1)     Rate
                                         -------------------------------------------------------------------------------------
Assets
                                                                                                    
  Taxable securities (3)                  $   5,624,430   $    72,055       5.11%    $   5,633,173   $    68,670       4.86%
  Tax-exempt securities (3)                     264,398         4,189       6.38           328,900         5,990       7.19
------------------------------------------------------------------------------------------------------------------------------
    Total securities (3)                      5,888,828        76,244       5.17         5,962,073        74,660       4.99
------------------------------------------------------------------------------------------------------------------------------
  Trading securities                             74,957         1,433       7.69            29,303           489       6.62
  Funds sold and resell agreements               80,735           840       4.18            86,948         1,303       5.95
  Loans (2)                                  12,181,279       199,678       6.59        11,806,242       223,146       7.50
    Less reserve for loan losses                131,709             -         -            125,996             -         -
------------------------------------------------------------------------------------------------------------------------------
  Loans, net of reserve                      12,049,570       199,678       6.66        11,680,246       223,146       7.58
------------------------------------------------------------------------------------------------------------------------------
    Total earning assets (3)                 18,094,090       278,195       6.17        17,758,570       299,598       6.70
------------------------------------------------------------------------------------------------------------------------------
  Cash and other assets                       2,402,963                                  2,224,045
------------------------------------------------------------------------------------------------------------------------------
        Total assets                      $  20,497,053                              $  19,982,615
------------------------------------------------------------------------------------------------------------------------------

Liabilities And Shareholders' Equity

  Transaction deposits                    $   7,473,670   $    42,175       2.27%    $   7,016,136   $    49,358       2.79%
  Savings deposits                              156,953           238       0.61           160,170           348       0.86
  Time deposits                               4,225,141        45,734       4.35         4,544,802        53,613       4.68
------------------------------------------------------------------------------------------------------------------------------
     Total interest-bearing deposits         11,855,764        88,147       2.99        11,721,108       103,319       3.50
------------------------------------------------------------------------------------------------------------------------------
  Funds purchased and repurchase
    agreements                                3,061,783        23,649       3.11         3,158,153        35,169       4.42
  Other borrowings                            1,340,846        11,718       3.51           936,353        11,611       4.92
  Subordinated debentures                       398,241         5,399       5.45           398,109         5,708       5.69
------------------------------------------------------------------------------------------------------------------------------
     Total interest-bearing liabilities      16,656,634       128,913       3.11        16,213,723       155,807       3.81
------------------------------------------------------------------------------------------------------------------------------
  Demand deposits                             1,236,552                                  1,293,419
  Other liabilities                             618,721                                    580,574
  Shareholders' equity                        1,985,146                                  1,894,899
------------------------------------------------------------------------------------------------------------------------------
  Total liabilities and shareholders'
     equity                               $  20,497,053                              $  19,982,615
------------------------------------------------------------------------------------------------------------------------------
  Tax-Equivalent Net Interest Revenue (3)                $    149,282       3.06%                    $    143,791        2.89%
  Tax-Equivalent Net Interest  Revenue
     To Earning Assets (3)                                                  3.31                                         3.22
  Less tax-equivalent adjustment (1)                            2,154                                      2,502
------------------------------------------------------------------------------------------------------------------------------
Net Interest Revenue                                          147,128                                    141,289
Provision for credit losses                                    17,571                                     13,200
Other operating revenue                                       120,562                                    107,316
Other operating expense                                       153,404                                    157,727
------------------------------------------------------------------------------------------------------------------------------
Income before taxes                                            96,715                                     77,678
Federal and state income tax                                   34,450                                     26,518
------------------------------------------------------------------------------------------------------------------------------
Net Income                                                $    62,265                                $    51,160
------------------------------------------------------------------------------------------------------------------------------
Earnings Per Average Common Share Equivalent:
  Net income:
    Basic                                                 $      0.93                                $      0.76
------------------------------------------------------------------------------------------------------------------------------
    Diluted                                               $      0.92                                $      0.76
------------------------------------------------------------------------------------------------------------------------------


(1)  Tax  equivalent  at the  statutory  federal and state rates for the periods
     presented.  The taxable  equivalent  adjustments  shown are for comparative
     purposes.
(2)  The loan averages  included loans on which the accrual of interest has been
     discontinued and are stated net of unearned income.
(3)  Yield calculations exclude security trades that have been recorded on trade
     date with no corresponding interest income.

 47


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



                                                   Three Months Ended
-------------------------------------------------------------------------------------------------------------------------
             September 30, 2007                         June 30, 2007                          March 31, 2007
-------------------------------------------------------------------------------------------------------------------------
      Average       Revenue/    Yield /       Average        Revenue/    Yield /      Average       Revenue/    Yield /
      Balance      Expense(1)     Rate        Balance       Expense(1)    Rate        Balance      Expense(1)    Rate
-------------------------------------------------------------------------------------------------------------------------

                                                                                           
  $   5,206,482  $    62,531       4.84%  $   5,014,231   $    60,176       4.85% $   4,802,768  $    57,595       4.86%
        360,710        5,820       6.44         354,956         4,681       5.81        322,202        4,802       6.09
-------------------------------------------------------------------------------------------------------------------------
      5,567,192       68,351       4.95       5,369,187        64,857       4.90      5,124,970       62,397       4.93
-------------------------------------------------------------------------------------------------------------------------
         24,413          459       7.46          32,897           481       5.86         29,613          519       7.11
        101,281        1,588       6.22          67,057           924       5.53         55,674          665       4.84
     11,709,638      232,446       7.88      11,338,140       224,492       7.94     10,893,163      213,080       7.93
        123,059            -         -          118,505             -         -         113,379            -         -
-------------------------------------------------------------------------------------------------------------------------
     11,586,579      232,446       7.96      11,219,635       224,492       8.03     10,779,784      213,080       8.02
-------------------------------------------------------------------------------------------------------------------------
     17,279,465      302,844       6.99      16,688,776       290,754       7.00     15,990,041      276,661       7.02
-------------------------------------------------------------------------------------------------------------------------
      2,056,910                               1,869,294                               1,874,080
-------------------------------------------------------------------------------------------------------------------------
  $  19,336,375                           $  18,558,070                           $  17,864,121
-------------------------------------------------------------------------------------------------------------------------


  $   6,683,056  $    50,650       3.01%  $   6,414,014   $    48,242       3.02% $   6,100,117  $    46,367       3.08%
        200,362          410       0.81         158,718           377       0.95        143,101          364       1.03
      4,798,812       58,436       4.83       4,507,053        53,440       4.76      4,420,390       51,141       4.69
-------------------------------------------------------------------------------------------------------------------------
     11,682,230      109,496       3.72      11,079,785       102,059       3.69     10,663,608       97,872       3.72
-------------------------------------------------------------------------------------------------------------------------

      2,603,372       32,484       4.95       2,627,230        33,129       5.06      2,640,485       33,565       5.16
        880,894       11,789       5.31         866,096        11,760       5.45        668,078        9,098       5.52
        471,458        7,166       6.03         410,883         6,824       6.66        297,806        5,203       7.09
-------------------------------------------------------------------------------------------------------------------------
     15,637,954      160,935       4.08      14,983,994       153,772       4.12     14,269,977      145,738       4.14
-------------------------------------------------------------------------------------------------------------------------
      1,300,280                               1,295,930                               1,397,874
        577,161                                 487,400                                 454,822
      1,820,980                               1,790,746                               1,741,448
-------------------------------------------------------------------------------------------------------------------------
  $  19,336,375                           $  18,558,070                           $  17,864,121
-------------------------------------------------------------------------------------------------------------------------
                 $    141,909      2.91%                  $   136,982       2.88%                $    130,923      2.88%
                                                                                      3.05

                                   3.27                                     3.31                                   3.32
                       2,464                                    2,069                                  2,085
-------------------------------------------------------------------------------------------------------------------------
                     139,445                                  134,913                                128,838
                       7,201                                    7,820                                  6,500
                     109,372                                   90,171                                 91,789
                     151,018                                  134,131                                132,111
-------------------------------------------------------------------------------------------------------------------------
                      90,598                                   83,133                                 82,016
                      30,750                                   29,270                                 29,223
-------------------------------------------------------------------------------------------------------------------------
                 $    59,848                              $    53,863                            $    52,793
-------------------------------------------------------------------------------------------------------------------------


                 $      0.89                              $      0.80                            $      0.79
-------------------------------------------------------------------------------------------------------------------------
                 $      0.89                              $      0.80                            $      0.78
-------------------------------------------------------------------------------------------------------------------------


 48

PART II. Other Information

Item 1. Legal Proceedings

     See  discussion  of legal  proceedings  at footnote 10 to the  consolidated
financial statements.

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, 2008.


------------------------ ---------------- ---------------- ------------------------------------ -----------------------------
                          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, 2008 to             34,184         $50.88                        -                              1,382,041
January 31, 2008
------------------------ ---------------- ---------------- ------------------------------------ -----------------------------
February 1, 2008 to            38,768         $52.30                    35,707                            1,346,334
February 29, 2008
------------------------ ---------------- ---------------- ------------------------------------ -----------------------------
March 1, 2008 to               55,684         $50.45                    55,407                            1,290,927
March 31, 2008
------------------------ ---------------- ---------------- ------------------------------------ -----------------------------

Total                         128,636                                   91,114
------------------------ ---------------- ---------------- ------------------------------------ -----------------------------


(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, 2008,
     the Company had repurchased 709,073 shares under the new plan.

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


Item 6. 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 1A, 3, 4 and 5 are not applicable and have been omitted.

 49

                                   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 12, 2008                  /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
                                        Chief Accounting Officer