BOK FINANCIAL CORP ET AL
10-K, 1998-03-23
NATIONAL COMMERCIAL BANKS
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     As filed with the Securities and Exchange Commission on March 23, 1998
 ===============================================================================

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

                                    FORM 10-K

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

     For the Fiscal Year ended December 31, 1997 Commission File No. 0-19341

                            BOK FINANCIAL CORPORATION

            Incorporated in the State I.R.S. Employer Identification
                            of Oklahoma No.73-1373454

                             Bank of Oklahoma Tower
                                  P.O. Box 2300
                              Tulsa, Oklahoma 74192

                         Registrant's Telephone Number,
                       Including Area Code (918) 588-6000

                 SECURITIES REGISTERED PURSUANT TO SECTION 12(b)
                               OF THE ACT: (NONE)

                 SECURITIES REGISTERED PURSUANT TO SECTION 12(g)
                                   OF THE ACT:
                        COMMON STOCK ($.00006 Par Value)

          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 if disclosure of delinquent  filers pursuant to
     Item  405 of  Regulation  S-X is not  contained  herein,  and  will  not be
     contained,  to the best of Registrant's  knowledge,  in definitive proxy or
     information  statements  incorporated by reference in Part III of this Form
     10-K or any amendment to this Form 10-K. [ ]

          State  the  aggregate  market  value  of  the  voting  stock  held  by
     non-affiliates of the Registrant: $63,328,413 as of February 28, 1998.

          Indicate the number of shares  outstanding of each of the Registrant's
     classes of common  stock,  as of the latest  practicable  date:  21,930,457
     shares of common stock ($.00006 par value) as of February 28, 1998.

     List hereunder the following documents if incorporated by reference and the
     part of Form 10-K in which the document is incorporated:
          Part I - Annual Report to Shareholders  For Fiscal Year Ended December
               31, 1997 (designated portions only)
          Part II - Annual Report to Shareholders For Fiscal Year Ended December
               31, 1997 (designated portions only)
          Part III  -  Proxy   Statement  for  Annual  Meeting  of  Shareholders
               scheduled for April 28, 1998 (designated portions only)
          Part IV - Annual Report to Shareholders For Fiscal Year Ended December
               31, 1997 (designated portions only)

================================================================================
<PAGE>2



                            BOK FINANCIAL CORPORATION
                             FORM 10-K ANNUAL REPORT
                                      INDEX


ITEM                                                                           
                                                                           PAGE

                                                PART I

1.  Business                                                                 3

2.  Properties                                                               8

3.  Legal Proceedings                                                        8

4.  Submission of Matters to a Vote of Security Holders                      8


                                       PART II

5.  Market for Registrant's Common Equity and Related Stockholder Matters    8

6.  Selected Financial Data                                                  9

7.  Management's Discussion and Analysis of Financial Condition and          9
    Results of Operations

7A. Quantitative and Qualitative Disclosures About Market Risk               9

8.  Financial Statements and Supplementary Data                              9

9.  Changes in and Disagreements with Accountants on Accounting and          9
    Financial Disclosure


                                      PART III

10. Directors and Executive Officers of the Registrant                       9

11. Executive Compensation                                                   9

12. Security Ownership of Certain Beneficial Owners and Management           9

13. Certain Relationships and Related Transactions                           9


                                       PART IV

14. Exhibits, Financial Statement Schedules and Reports on Form 8-K      10-14

    Signatures                                                              15


<PAGE>3



                                     PART I
       ITEM 1 - BUSINESS

                         General Development of Business

       BOK Financial  Corporation ("BOK  Financial") was incorporated  under the
       laws of the State of Oklahoma on October 24, 1990. Active operations as a
       bank holding  company  commenced on June 7, 1991 with the  acquisition of
       the preferred stock ("BOk Preferred Stock") of Bank of Oklahoma, National
       Association  ("BOk")  from  the  Federal  Deposit  Insurance  Corporation
       ("FDIC") and the conversion of the BOk Preferred Stock into 99.99% of the
       common stock of BOk. BOK Financial is regulated by the Board of Governors
       of the Federal Reserve System pursuant to the Bank Holding Company Act of
       1956, as amended ("BHCA").

       BOK Financial operates primarily through BOk, BOk's subsidiaries, Bank of
       Texas, National Association ("BOT") (formerly First National Bank of Park
       Cities and First Texas Bank,  both of which were acquired during 1997 and
       merged on January  1, 1998,  and Bank of Texas  Trust  Company,  National
       Association,  formerly Alliance Trust Company, National Association), and
       Bank of Arkansas, National Association ("BOA") (formerly Citizens Bank of
       Northwest  Arkansas,  National  Association).  The  existing  and  future
       activities of BOK Financial and its subsidiaries are limited by the BHCA,
       which  prohibits a bank  holding  company  from  engaging in any business
       other than banking,  managing or  controlling  banks,  and furnishing and
       performing certain bank-related services and activities.

       Shares disclosed in the following  transactions  have not been restated 
       for subsequent stock dividends.

       On June 7, 1991,  BOK Financial  paid $60.75  million to the FDIC for the
       BOk Preferred  Stock. To finance this  acquisition,  BOK Financial issued
       preferred  stock  totaling  $15.0  million  at $6.00 per share and common
       stock  ("Common  Stock")  totaling  $46.0  million  at $5.75 per share to
       George B.  Kaiser  ("Kaiser"),  BOK  Financial's  principal  shareholder.
       Kaiser  purchased an additional  $10.0  million of BOK  Financial  Common
       Stock at $5.75 per share, and BOK Financial contributed the $10.0 million
       to BOk as  additional  capital.  Per share  amounts  reflect a  1-for-100
       reverse stock split effective December 17, 1991 ("reverse stock split").

       Following a bidding process conducted by the Resolution Trust Corporation
       ("RTC"),  BOK Financial,  through the mortgage banking subsidiary of BOk,
       BancOklahoma   Mortgage  Corp.  ("BOMC"),   acquired  on  June  10,  1991
       approximately $1.0 billion of mortgage servicing rights and certain other
       assets of Maxim  Mortgage  Corporation  ("Maxim").  Maxim was  formerly a
       subsidiary  of Sooner  Federal  Savings and Loan  Association,  which had
       failed and had been placed under the control of the RTC.

       Also  following a bidding  process by the RTC, BOK Financial  acquired on
       August 9, 1991 certain assets and assumed certain liabilities,  primarily
       deposits,  of eight  branches  of  Continental  Federal  Savings and Loan
       Association of Oklahoma City, Oklahoma. BOK Financial assumed deposits of
       approximately  $214.5 million and paid the RTC a premium of $4.1 million.
       Kaiser  acquired an additional  $20.0 million of BOK  Financial's  Common
       Stock at $5.75 per share (after effect of the reverse  stock split),  and
       BOK Financial  contributed  the $20.0  million to BOk to  facilitate  the
       purchase.

       On March 27, 1992,  BOA acquired  certain assets and assumed the deposits
       and  certain  obligations  of two  branches  of the failed  Home  Federal
       Savings & Loan Association from the RTC for $1.1 million.

       On July 16,  1992,  Bank of  Oklahoma,  N.A.,  South,  an  unconsolidated
       banking subsidiary, was merged into BOk.

       On November 13, 1992, BOK Financial purchased Southwest  Trustcorp,  Inc.
       and its  subsidiary,  The Trust  Company of Oklahoma,  Oklahoma  City, in
       exchange for 400,000 shares of Common Stock valued at $4.6 million.

       On December 31, 1992, BOK Financial  acquired  certain assets and assumed
       $502.9  million of deposits and other  liabilities  of 19 branches of the
       Sooner  Division  of First  Gibraltar  Bank,  FSB of Irving,  Texas for a
       purchase price of $16.5 million.

       On May 7, 1993, BOK Financial issued 343,295 common shares valued at $6.9
       million and paid $3.9 million to acquire Sand  Springs  Bancshares,  Inc.
       and its subsidiary, Sand Springs State Bank.

       Also on May 7, 1993,  BOK  Financial  issued  1,183,691  common shares to
       acquire Brookside  Bancshares,  Inc. and its subsidiary,  Brookside State
       Bank, in a pooling-of-interests transaction. Financial information of BOK
       Financial   for  1992  and  1991  has  been   restated  to  reflect  this
       acquisition.

       On October 9, 1993, BOK Financial acquired certain assets and assumed the
       deposits and certain  obligations of two branches of the failed Heartland
       Federal Savings & Loan Association from the FDIC for $5.1 million.

       On May 2, 1994, BOK Financial acquired Plaza National Bank, Bartlesville,
       Oklahoma for $11.7 million.

       On June 13, 1994,  BOK Financial  acquired Texas Commerce Trust Company -
       Sherman,  National  Association,  Sherman,  Texas, a national association
       limited to trust powers only, for $6.1 million.
<PAGE>4

       On October 7, 1994, BOK Financial  acquired Northwest Bank of Enid, Enid,
       Oklahoma for $8.2 million.

       On November 14, 1994,  BOK Financial  issued  1,380,017  common shares to
       acquire Citizens Holding Company and its  subsidiaries,  Citizens Bank of
       Muskogee   and   Citizens    Bank   of   Northwest    Arkansas,    in   a
       pooling-of-interests. Financial information of BOK Financial for 1993 and
       1992 has been restated to reflect this acquisition.

       On February 12, 1997, BOK Financial acquired Park Cities Bancshares, Inc.
       and its subsidiary,  First National Bank of Park Cities, in Dallas, Texas
       for $50.9 million.

       On March 4, 1997,  BOK Financial  acquired First  TexCorp.,  Inc. and its
       subsidiary, First Texas Bank, in Dallas, Texas for $39.3 million.

       On January 1, 1998,  First  National  Bank of Park Cities and First Texas
       Bank were merged  under the name of Bank of Texas,  National  Association
       and Alliance Trust Company,  National  Association was transferred to BOT
       and  its  name  changed  to  Bank  of  Texas  Trust   Company,   National
       Association.

       Developments  relating  to  individual  aspects  of the  business  of BOK
       Financial are described  under  "Narrative  Description  of Business" and
       "Services Offered" on page 4 of this report. Additional discussion of BOK
       Financial's  activities  during  the  current  year  is  incorporated  by
       reference  to  "Management's   Assessment  of  Operations  and  Financial
       Condition"  (pages  6 - 18) in BOK  Financial's  1997  Annual  Report  to
       Shareholders.    Additional   information   regarding   BOK   Financial's
       acquisitions  is  incorporated  by  reference  to  Note  2 of  "Notes  to
       Consolidated  Financial  Statements"  (page 28 ) in BOK Financial's  1997
       Annual Report to Shareholders.

                        Narrative Description of Business

       BOK Financial is a bank holding company,  and as such, its activities are
       limited  by the  BHCA  to  banking,  certain  bank-related  services  and
       activities,  and managing or controlling  banks. BOK Financial's  banking
       and bank-related  activities are primarily performed through BOk, BOT and
       BOA.  Other  significant  operating   subsidiaries  include  BOK  Capital
       Services Corporation,  which provides leasing and mezzanine financing and
       Alliance  Securities   Corporation  which  is  authorized  to  underwrite
       municipal  revenue bonds,  asset-backed  securities and commercial paper.
       Other nonbank subsidiary  operations are not significant.  As of December
       31,  1997,  BOK  Financial  and  its  subsidiaries  had  2,318  full-time
       equivalent employees.  Following is a description of the more significant
       services  offered by BOK Financial  and the  competitive  and  regulatory
       environments in which it operates.

                                Services Offered

       Commercial Banking Services

       BOK  Financial,  through  BOk,  BOT and  BOA,  provides  a wide  range of
       financial  services to commercial  and  industrial  customers,  including
       depository, lending and other financial services such as cash management,
       leasing and  international  collections.  The loan portfolio is comprised
       primarily  of real  estate and  commercial  loans.  The  commercial  loan
       portfolio is diversified  and  distributed  among various  commercial and
       industrial customers, including energy-related,  manufacturing, trade and
       service industries.

       Correspondent Banking Services

       BOK  Financial  provides a broad  range of  financial  services to banks,
       savings and loans,  credit  unions and other  financial  institutions  in
       Oklahoma  and  surrounding  states.  BOK  Financial  works  closely  with
       community  financial  institutions,  assisting  them  in  satisfying  the
       demands  of  their   customers  and  trade  areas  by  engaging  in  loan
       participations and providing other financial services.

       Consumer Banking Services

       At December 31, 1997, BOk had 65 banking locations,  with 45 locations in
       the Tulsa and  Oklahoma  City  areas.  BOT had 4  offices  in Dallas  and
       another  trust  office in  Sherman,  Texas,  and BOA had 4  locations  in
       northwest   Arkansas.   Services   offered  include   deposit   accounts,
       installment loans,  student loans,  personal lines of
       credit,  debit cards,  an automated  24-hour  telephone loan  application
       service,  a 24-hour  telephone branch and telephone and personal computer
       based bill paying  services.  The  BancOklahoma  Investment  Center makes
       available,  through representatives in most BOk branches, a full range of
       mutual  funds,  annuities  and  securities.  TransFund,  BOk's network of
       automated  teller  machines,  consists of 782 locations  across Oklahoma,
       Arkansas, southwest Missouri, northern Texas and southern Kansas.

       Investment and Money Market Activities

       BOk provides securities brokerage, and trading services for corporations,
       governmental  units,   individual   customers  and  correspondent  banks.
       Securities  include  money  market   instruments,   U.S.  Government  and
       municipal bonds, corporate stocks
<PAGE>5

                                         and bonds, and mutual funds. The public
       finance  department   provides   bank-eligible   underwriting   financial
       advisory,  private placement and term-financing services for governmental
       and corporate entities. BOK Financial provides a broad range of financial
       services outside those traditionally  associated with banking through its
       subsidiaries  Alliance  Securities Corp.,  which is authorized to provide
       financial  advisory  services  to  both  public  and  corporate  sectors,
       underwriting of municipal revenue bonds,  mortgage backed debt,  consumer
       receivables,  and commercial  paper; and BOK Capital Services Corp. which
       provides leasing and mezzanine financing.


       Mortgage Banking

       BOk through its Mortgage Division (formerly  BancOklahoma Mortgage Corp.)
       offers a full array of mortgage options from federally sponsored programs
       to "jumbo loans" on higher priced houses.  BOk is the largest  originator
       of  mortgage  loans  in  Oklahoma  and  has  a  servicing   portfolio  of
       approximately $7.0 billion, including $216 million serviced for BOk.

       Trust and Asset Management Services

       BOK Financial provides a wide range of trust services through BOk's Trust
       Division (formerly BancOklahoma Trust Company) in Oklahoma and BOT's Bank
       of Texas Trust Company,  N.A. in Texas (formerly  Alliance Trust Company,
       N.A.)   Individual   financial  trust  services  include  personal  trust
       management,  administration  of  estates  and  management  of  individual
       investment and custodial  accounts.  For corporate clients,  the services
       include  management,  administration  and recordkeeping of pension plans,
       thrift  plans,   401(k)  plans  and  master  trust  plans,   including  a
       state-of-the-art system for employee benefit plan recordkeeping.  The BOk
       trust  division also serves as transfer agent and registrar for corporate
       securities, paying agent for municipalities and governmental agencies and
       indenture  trustee of bond  issues.  The BOK Trust Division  serves as an
       investment  advisor  to the  American  Performance  Funds,  a  family  of
       proprietary mutual funds distributed by the Winsbury Company of Columbus,
       Ohio.  At December 31, 1997,  trust  subsidiaries  were  responsible  for
       approximately $11.1 billion in assets.

                               Foreign Operations

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

                                   Competition

       The banking  industry in Oklahoma is highly  competitive.  BOK  Financial
       competes  with  other  banks in  obtaining  deposits,  making  loans  and
       providing additional services related to banking. There are approximately
       320 banks located in Oklahoma,  of which  approximately 38 are located in
       the Tulsa County and surrounding  metropolitan  area and approximately 53
       are located in the Oklahoma County and surrounding metropolitan area. BOK
       Financial  is  also in  competition  with  other  businesses  engaged  in
       extending   credit  or   accepting   deposits,   such  as  major   retail
       establishments,  major brokerage  firms,  savings and loan  associations,
       credit  unions,  finance  companies,  small  loan  companies,   insurance
       companies and loan  production  offices of major banks located within and
       outside Oklahoma.

       Limited   branch   banking  as  permitted   in  Oklahoma  is   increasing
       competition.  Generally,  a bank may  establish  two new  branch  offices
       within the town or city where the bank is located or in nearby  areas not
       already served by a bank or branch,  and may acquire an unlimited  number
       of  existing  banks and  convert  them and  their  branches  into  branch
       offices.  Within its primary  markets,  BOk has 23 locations in the Tulsa
       area and 22  locations  in the Oklahoma  City area,  the state's  largest
       financial  markets.  Subject to regulatory  approval,  BOk is considering
       various  locations for additional  facilities.  Like BOk, other banks are
       taking  advantage  of the bank  branching  laws to  establish  additional
       facilities.  These  additional  banking  offices are  further  increasing
       competition.  Limited  branch  banking is, on the other hand,  permitting
       banks to compete more  effectively  with  savings and loan  associations,
       credit unions and other financial institutions that may establish offices
       more  freely  than  banks,  some of which are not  subject to  comparable
       regulatory restrictions on their activities.

       Oklahoma  also  permits  the  acquisition  of  an  unlimited   number  of
       wholly-owned bank subsidiaries so long as aggregate  deposits at the time
       of  acquisition in a multibank  holding  company do not exceed 15% of all
       deposits  in  Oklahoma  financial  institutions  insured  by the  federal
       government,  exclusive  of credit  union  deposits.  Based on the  latest
       statistical  data  available (as of June 30, 1997),  BOK Financial  could
       acquire additional bank subsidiaries so long as the aggregate deposits of
       all  Oklahoma  subsidiaries  do not exceed  approximately  $5.2  billion.
       Deposits  of BOk were  $3.2  billion  and $3.3  billion  at June 30,  and
       December 31, 1997, respectively.

       Oklahoma  also permits  out-of-state  bank  holding  companies to acquire
       banks and bank  holding  companies  located in the state and,  subject to
       certain  limitations,  make  additional  acquisitions  within  the state.
       During  the  last  few  years  the  Oklahoma  banking  industry  has been
       consolidated   into   fewer  but   larger   banks.   During   1997,   two
       "super-regional"  holding companies completed  acquisitions of the second
       and third  largest  banks in Oklahoma.  The  consolidation  over the past
       several  years has brought  about a highly  competitive  environment,  in
       which many  customers  have access to  national  and  regional  financial
       institutions for many products and services.

       On September 29, 1994, the Riegle-Neal  Interstate  Banking and Branching
       Efficiency Act of 1994  ("Riegle-Neal")  was signed into law. In summary,
       commencing one year after passage, qualifying bank holding companies were
       permitted  to  acquire  
<PAGE>6

                                   banks  in any  state.  As of  June  1,  1997,
       qualifying  banks were able to engage in interstate  branching by merging
       banks in different states.  States " opt-out" of interstate  branching by
       enacting  specific  legislation  prior to June 1,  1997,  in  which  case
       out-of-state banks would generally not be able to branch into that state,
       and banks  headquartered  in that state would not be  permitted to branch
       into other states.  The law imposes a 10%  nationwide
       deposit cap and a 30% state deposit cap;  however,  the states' authority
       is preserved to impose a lower,  nondiscriminatory  deposit cap. Oklahoma
       elected  to  "opt-in"  to  interstate  branching  effective  May 1997 and
       established a 12.25% deposit cap which was subsequently increased to 15%.
       It is  anticipated  that the total number of Oklahoma  banks may decrease
       and national and regional bank  presence in the state may increase.  Over
       the near-term,  these changes are expected to increase competition with a
       greater number of products and services available to Oklahoma  customers.
       Over the long-term,  the number of competitors could decrease,  depending
       on  the  extent  of  consolidations  nationwide,  but  competition  could
       continue to increase as a result of the remaining institutions needing to
       be stronger,  more innovative and more aggressive to retain a significant
       presence in a consolidated environment.

       Additional  legislation,  judicial and administrative  decisions also may
       affect the  ability  of banks to compete  with each other as well as with
       other  businesses.  These  statutes  and  decisions  may tend to make the
       operations of various  financial  institutions  more similar and increase
       competition  among banks and other  financial  institutions  or limit the
       ability of banks to compete with other businesses.  Management  currently
       cannot  predict  whether and, if so, when any such changes might occur or
       the impact any such changes  would have upon the income or  operations of
       BOK Financial or its subsidiaries,  or upon the Oklahoma regional banking
       environment.

                           Supervision and Regulation

       Bank holding  companies and banks are  extensively  regulated  under both
       federal  and state  law.  The  following  information,  to the  extent it
       describes  statutory  or  regulatory  provisions,  is  qualified  in  its
       entirety  by  reference  to  the  particular   statutory  and  regulatory
       provisions.  It is not possible to predict the changes,  if any, that may
       be made to existing banking laws and regulations or whether such changes,
       if made,  would have a  materially  adverse  effect on the  business  and
       prospects of BOK Financial, BOk, BOT and BOA.

       BOK Financial

       As a bank holding  company,  BOK Financial is subject to regulation under
       the BHCA and to  supervision  by the Board of  Governors  of the  Federal
       Reserve  System (the "Reserve  Board").  Under the BHCA, BOK Financial is
       required to file with the Reserve  Board an annual  report and such other
       additional  information  as the Reserve  Board may  require.  The Reserve
       Board may also make examinations of BOK Financial and its subsidiaries.

       The BHCA  requires  the prior  approval of the Reserve  Board in any case
       where a bank  holding  company  proposes to acquire  control of more than
       five percent of the voting shares of any bank, unless it already controls
       a majority of such voting  shares.  Additionally,  approval  must also be
       obtained before a bank holding  company may acquire all or  substantially
       all of the assets of another  bank or before it may merge or  consolidate
       with another bank holding  company.  The BHCA further  provides  that the
       Reserve  Board  shall  not  approve  any  such  acquisition,   merger  or
       consolidation that will substantially lessen competition,  tend to create
       a  monopoly  or  be  in   restraint   of  trade,   unless  it  finds  the
       anti-competitive   effects  of  the  proposed   transaction  are  clearly
       outweighed  in  the  public  interest  by  the  probable  effect  of  the
       transaction in meeting the  convenience  and needs of the community to be
       served.

       The BHCA also prohibits a bank holding company,  with certain exceptions,
       from acquiring more than five percent of the voting shares of any company
       that is not a bank and from  engaging in any business  other than banking
       or managing or  controlling  banks.  Under the BHCA, the Reserve Board is
       authorized to approve the  ownership of shares by a bank holding  company
       in any company whose activities the Reserve Board has determined to be so
       closely related to banking or to managing or controlling banks as to be a
       proper incident thereto. In making such determinations, the Reserve Board
       weighs the  Community  Reinvestment  Act  activities  of the bank holding
       company  and  the  expected  benefit  to  the  public,  such  as  greater
       convenience,  increased  competition or gains in efficiency,  against the
       possible  adverse  effects,  such as undue  concentration  of  resources,
       decreased or unfair competition, conflicts of interest or unsound banking
       practices.  The Reserve Board has by regulation  determined  that certain
       activities are closely related to banking within the meaning of the BHCA.
       These activities  include operating a mortgage company,  finance company,
       credit  card  company  or  factoring  company;  performing  certain  data
       processing  operations;  servicing loans and other  extensions of credit;
       providing  investment and financial advice;  acting as an insurance agent
       for  certain  types of  credit-related  insurance;  owning and  operating
       savings  and  loan  associations;  and  leasing  personal  property  on a
       full-payout, nonoperating basis.

       A bank holding company and its subsidiaries are further  prohibited under
       the BHCA from engaging in certain tie-in  arrangements in connection with
       the provision of any credit, property or services.  Thus, a subsidiary of
       a bank holding  
<PAGE>7

                       company may not extend  credit,  lease or sell  property,
       furnish  any  services  or  fix  or  vary  the  consideration  for  these
       activities on the condition that (1) the customer  obtain or provide some
       additional  credit,  property  or  services  from or to the bank  holding
       company or any subsidiary thereof or (2) the customer may not obtain some
       other  credit,  property or  services  from a  competitor,  except to the
       extent  reasonable  conditions  are  imposed to insure the  soundness  of
       credit extended.

       The  Federal  Deposit  Insurance  Corporation  Improvement  Act  of  1991
       established five capital rating tiers ranging from "well  capitalized" to
       "critically  undercapitalized".  A financial institution is considered to
       be well capitalized if its Leverage,  Tier 1 and Total Capital ratios are
       at 5%, 6% and 10%, respectively. Any institution experiencing significant
       growth or  acquiring  other  institutions  or  branches  is  expected  to
       maintain capital ratios above the well capitalized level. At December 31,
       1997,  BOK  Financial's  Leverage,  Tier 1 and Total Capital  ratios were
       6.81%, 9.39% and 14.54%, respectively.

       Bank Subsidiaries

       BOk, BOT and BOA are national banking associations and are subject to the
       National Banking Act and other federal statutes governing national banks.
       Under  federal  law,  the  Office  of the  Comptroller  of  the  Currency
       ("Comptroller")  charters,  regulates and serves as the primary regulator
       of national  banks.  In addition,  the  Comptroller  must approve certain
       corporate  or  structural  changes,  including an increase or decrease in
       capitalization,  payment  of  dividends,  change  of place  of  business,
       establishment of a branch and  establishment of an operating  subsidiary.
       The Comptroller  performs its functions  through  national bank examiners
       who provide the Comptroller with information  concerning the soundness of
       a national bank, the quality of management and directors,  and compliance
       with applicable  laws,  rules and  regulations.  The National Banking Act
       authorizes  the  Comptroller  to examine every  national bank as often as
       necessary.    Although   the   Comptroller   has   primary    supervisory
       responsibility  for  national  banks,  such banks must also  comply  with
       Reserve  Board rules and  regulations  as members of the Federal  Reserve
       System.

       BOA is also subject to certain  consumer-protection  laws incorporated in
       the Arkansas  Constitution,  which, among other  restrictions,  limit the
       maximum  interest rate on general loans to five percent above the Federal
       Reserve  Discount  Rate. The rate on consumer loans is five percent above
       the discount rate or seventeen percent, whichever is lower.

       BOk,  BOT and BOA are insured by the FDIC and are required to pay certain
       fees  and  premiums  to the  Bank  Insurance  Fund  ("BIF").  The BIF has
       implemented a risk-related  insurance system for determining  premiums to
       be paid by a bank.  Each bank is  placed  in one of nine risk  categories
       based  on  its  level  of  capital  and   supervisory   rating  with  the
       well-capitalized  banks  with the  highest  supervisory  rating  paying a
       premium of 0.00% of deposits and the  critically  undercapitalized  banks
       paying  up  to  0.27%  of  deposits.   Also,  approximately  19%  of  BOK
       Financial's  total  deposits at December 31, 1997 were  acquired  through
       Oakar  transactions  and are  insured  through  the  Savings  Association
       Insurance  Fund  ("SAIF").  The Deposit  Insurance  Funds Act of 1996 was
       enacted  on  September  30,  1996,  which   recapitalized  the  SAIF  and
       implemented a risk-related  insurance  system identical to the BIF system
       discussed  above.  In addition,  the Deposit  Insurance  Fund Act of 1996
       implemented  an  additional  assessment  on BIF and  SAIF  deposits,  the
       Financing  Corporation  ("FICO") Quarterly Payment,  which is not tied to
       the BIF risk  classification.  The FICO BIF annual rate at  December  31,
       1997 was 1.256 basis  points and the FICO SAIF annual rate was 6.28 basis
       points.

       Applicable  federal  statutes and regulations  require  national banks to
       meet certain leverage and risk-based  capital  requirements.  At December
       31, 1997, BOk's,  BOT's and BOA's leverage and risk-based  capital ratios
       were well above the required minimum ratios.

<PAGE>8

                   Governmental Policies and Economic Factors

       The  operations  of BOK Financial  and its  subsidiaries  are affected by
       legislative changes and by the policies of various regulatory authorities
       and,  in  particular,  the  credit  policies  of the  Reserve  Board.  An
       important  function of the  Reserve  Board is to  regulate  the  national
       supply of bank credit.  Among the  instruments of monetary policy used by
       the Reserve Board to implement its objectives are: open market operations
       in U.S.  Government  securities;  changes  in the  discount  rate on bank
       borrowings;  and changes in reserve  requirements  on bank deposits.  The
       effect of such policies in the future on the business and earnings of BOK
       Financial and its subsidiaries cannot be predicted with certainty.

       ITEM 2 - PROPERTIES

       BOK  Financial,  through  BOk,  BOk's  subsidiaries,  BOT and  BOA,  owns
       improved  real  estate  that  was  carried  at  $43.0  million,   net  of
       depreciation  and  amortization,  as of December 31, 1997.  BOK Financial
       conducts  its  operations  through a total of 65 banking and 4 nonbanking
       locations in Oklahoma,  4 banking locations in Arkansas and 4 banking and
       2 nonbanking locations in Texas as of December 31, 1997. BOk's facilities
       are suitable for their respective uses and present needs.

       The  information  set forth in Notes 6 and 13 of  "Notes to  Consolidated
       Financial  Statements" (pages 32 and 38, respectively) of BOK Financial's
       1997 Annual Report to Shareholders provides further discussion related to
       properties and is incorporated herein by reference.


       ITEM 3 - LEGAL PROCEEDINGS

       The information set forth in Note 13 of "Notes to Consolidated  Financial
       Statements"   (page  38)  of  BOK  Financial's   1997  Annual  Report  to
       Shareholders is incorporated herein by reference.


       ITEM 4 - SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

       No matters  were  submitted  to a vote of security  holders,  through the
       solicitation  of proxies or  otherwise,  during  the three  months  ended
       December 31, 1997.


                                     PART II

       ITEM 5 - MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER
                MATTERS

       BOK Financial's $.00006 par value common stock is traded over-the-counter
       and  is  reported  on  the  facilities  of the  National  Association  of
       Securities Dealers Automated Quotation system ("NASDAQ"), with the symbol
       BOKF. At December 31, 1997, common  shareholders of record numbered 1,227
       with 21,909,370 shares outstanding.

       During 1997, BOK Financial declared a 3% stock dividend in respect of its
       Common Stock payable in shares of Common Stock.  The dividend was payable
       on November 26, 1997 to  shareholders of record on November 17, 1997. BOK
       Financial's quarterly market information follows:

                    First          Second          Third          Fourth     
                --------------- -------------- -------------- ---------------
       1997:                                                                 
         Low        $27.75          $29.25          $32.75        $38.81     
         High        31.50           36.00           40.50         44.00     
                                                                             
       1996:                                                                 
         Low        $19.25          $20.00          $21.25        $23.25     
         High        23.25           22.75           23.75         28.00     
       
       On February 25, 1998, BOK Financial announced that its board of directors
       approved a common  stock  repurchase  program to  purchase  up to 200,000
       shares.  The purchases will be made from  time-to-time in accordance with
       SEC Rule 10(b)18 transactions.

       The  information  set forth under the  captions  "Table 1 -  Consolidated
       Selected  Financial  Data"  (page  5),  "Table  6  -  Selected  Quarterly
       Financial Data" (page 12) and Note 15 of "Notes to Consolidated Financial
       Statements"   (page  39)  of  BOK  Financial's   1997  Annual  Report  to
       Shareholders is incorporated herein by reference.

<PAGE>9

       ITEM 6 - SELECTED FINANCIAL DATA

       The  information  set forth  under the  caption  "Table 1 -  Consolidated
       Selected  Financial Data" (page 5) of BOK Financial's  1997 Annual Report
       to Shareholders is incorporated herein by reference.


       ITEM 7 - MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND 
                RESULTS OF OPERATIONS

       The information set forth under the captions "Management's  Assessment of
       Operations and Financial  Condition"  (pages 6 - 18),  "Annual  Financial
       Summary - Unaudited"  (pages 44 - 45) and "Quarterly  Financial Summary -
       Unaudited"  (pages  46 - 47) of BOK  Financial's  1997  Annual  Report to
       Shareholders is incorporated herein by reference.

       ITEM 7A - QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

       The  information  set forth under the caption "Market Risk" (pages 17-18)
       of BOK  Financial's  1997 Annual Report to  Shareholders  is incorporated
       herein by reference.

       ITEM 8 - FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

       The  supplementary  data  regarding  quarterly  results of operations set
       forth under the caption  "Table 6 - Selected  Quarterly  Financial  Data"
       (page  12) of BOK  Financial's  1997  Annual  Report to  Shareholders  is
       incorporated herein by reference.


       ITEM 9 - CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND 
                FINANCIAL DISCLOSURE

       None.

                                    PART III

       ITEM 10 - DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

       The information set forth under the captions  "Election of Directors" and
       "Executive  Compensation"  in BOK Financial's 1997 Annual Proxy Statement
       for its  Annual  Meeting of  Shareholders  scheduled  for April 28,  1998
       ("1997 Annual Proxy Statement") is incorporated herein by reference.


       ITEM 11 - EXECUTIVE COMPENSATION

       The information set forth under the caption  "Executive  Compensation" in
       BOK Financial's  1997 Annual Proxy  Statement is  incorporated  herein by
       reference.


       ITEM 12 - SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

       The  information  set forth under the  captions  "Security  Ownership  of
       Certain  Beneficial Owners and Management" and "Election of Directors" in
       BOK Financial's  1997 Annual Proxy  Statement is  incorporated  herein by
       reference.


       ITEM 13 - CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

       The information set forth under the caption "Certain Transactions" in BOK
       Financial's  1997  Annual  Proxy  Statement  is  incorporated  herein  by
       reference.

       The  information  set  forth  under  Notes  3,  5  and  9  of  "Notes  to
       Consolidated  Financial  Statements" (pages 29, 31, and 34, respectively)
       of BOK  Financial's  1997 Annual Report to  Shareholders  is incorporated
       herein by reference.

<PAGE>10
                                     PART IV

       ITEM 14 - EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K

       (A)(1) LIST OF FINANCIAL STATEMENTS FILED.

       The  following   financial   statements  and  reports   included  in  BOK
       Financial's  Annual  Report to  Shareholders  for the  Fiscal  Year Ended
       December 31, 1997 are incorporated by reference in Parts I and II of this
       Annual Report on Form 10-K.

                               1997 Annual Report
                             Description Page Number

        Consolidated Selected Financial Data                                5

        Selected Quarterly Financial Data                                  12

        Report of Management on Financial Statements                       19

        Report of Independent Auditors                                     19

        Consolidated Statements of Earnings                                20

        Consolidated Balance Sheets                                        21

        Consolidated Statements of Changes in Shareholders' Equity      22-23

        Consolidated Statements of Cash Flows                              24

        Notes to Consolidated Financial Statements                      25-43

        Annual Financial Summary - Unaudited                            44-45

        Quarterly Financial Summary - Unaudited                         46-47

       (A)(2) List of Financial Statement Schedules filed.

       The  schedules  to the  consolidated  financial  statements  required  by
       Regulation  S-X are not required  under the related  instructions  or are
       inapplicable and are therefore omitted.

       (A)(3) LIST OF EXHIBITS FILED.

 Exhibit Number          Description of Exhibit

     3.0       The Articles of Incorporation  of BOK Financial,  incorporated by
               reference   to  (i)   Amended   and   Restated   Certificate   of
               Incorporation of BOK Financial filed with the Oklahoma  Secretary
               of  State  on  May  28,  1991,   filed  as  Exhibit  3.0  to  S-1
               Registration  Statement No. 33-90450, and (ii) Amendment attached
               as Exhibit A to Information  Statement and Prospectus  Supplement
               filed November 20, 1991.

      3.1      Bylaws of BOK Financial, incorporated by reference to Exhibit 3.1
               of S-1 Registration Statement No. 33-90450.

      4.0      The rights of the holders of the Common Stock and Preferred Stock
               of  BOK   Financial   are  set  forth  in  its   Certificate   of
               Incorporation.

     10.0      Purchase and Sale  Agreement  dated  October 25, 1990,  among BOK
               Financial,  Kaiser,  and the FDIC,  incorporated  by reference to
               Exhibit 2.0 of S-1 Registration Statement No. 33-90450.
<PAGE>11

     10.1      Amendment  to Purchase  and Sale  Agreement  effective  March 29,
               1991, among BOK Financial,  Kaiser, and the FDIC, incorporated by
               reference  to  Exhibit  2.2 of  S-1  Registration  Statement  No.
               33-90450

     10.2      Letter  agreement  dated  April 12,  1991,  among BOK  Financial,
               Kaiser, and the FDIC, incorporated by reference to Exhibit 2.3 of
               S-1 Registration Statement No. 33-90450.

     10.3      Second  Amendment to Purchase and Sale Agreement  effective April
               15, 1991, among BOK Financial, Kaiser, and the FDIC, incorporated
               by reference  to Exhibit 2.4 of S-1  Registration  Statement  No.
               33-90450.

     10.4      Employment agreements.

     10.4(a)   Employment  Agreement  between BOk and  Stanley A.  Lybarger,
               incorporated by reference to Exhibit 10.4(a) of Form 10-K for the
               fiscal year ended December 31, 1991.

     10.5      Director  indemnification  agreement dated June 30, 1987, between
               BOk and Kaiser,  incorporated by reference to Exhibit 10.5 of S-1
               Registration   Statement  No.  33-90450.   Substantially  similar
               director indemnification agreements were executed between BOk and
               the following:

                                                            Date of Agreement

                               James E. Barnes                June 30, 1987
                               William H. Bell                June 30, 1987
                               James S. Boese                 June 30, 1987
                               Dennis L. Brand                June 30, 1987
                               Chester E. Cadieux             June 30, 1987
                               William B. Cleary              June 30, 1987
                               Glenn A. Cox                   June 30, 1987
                               William E. Durrett             June 30, 1987
                               Leonard J. Eaton, Jr.          June 30, 1987
                               William B. Fader               December 5, 1990
                               Gregory J. Flanagan            June 30, 1987
                               Jerry L. Goodman               June 30, 1987
                               David A. Hentschel             July 7, 1987
                               Philip N. Hughes               July 8, 1987
                               Thomas J. Hughes, III          June 30, 1987
                               William G. Kerr                June 30, 1987
                               Philip C. Lauinger, Jr.        June 30, 1987
                               Stanley A. Lybarger            December 5, 1990
                               Patricia McGee Maino           June 30, 1987
                               Robert L. Parker, Sr.          June 30, 1987
                               James A. Robinson              June 30, 1987
                               William P. Sweich              June 30, 1987

     10.6      Capitalization  and Stock Purchase  Agreement dated May 20, 1991,
               between BOK  Financial and Kaiser,  incorporated  by reference to
               Exhibit 10.6 of S-1 Registration Statement No. 33-90450.

     10.7      BOK  Financial   Corporation  1991  Special  Stock  Option  Plan,
               incorporated  by  reference  to Exhibit  4.0 of S-8  Registration
               Statement No. 33-44122.

     10.7.1    BOK Financial Corporation 1992 Stock Option Plan,  incorporated
               by reference  to Exhibit 4.0 of S-8  Registration  Statement  No.
               33-55312.

     10.7.2    BOK Financial Corporation 1993 Stock Option Plan,  incorporated
               by reference  to Exhibit 4.0 of S-8  Registration  Statement  No.
               33-70102.

     10.7.3    BOK Financial Corporation 1994 Stock Option Plan,  incorporated
               by reference  to Exhibit 4.0 of S-8  Registration  Statement  No.
               33-79834.
<PAGE>12

     10.7.4    BOK Financial Corporation 1994 Stock Option Plan (Typographical
               Error Corrected  January 16, 1995),  incorporated by reference to
               Exhibit  10.7.4 of Form 10-K for the fiscal  year ended  December
               31, 1994.

     10.7.5    BOK Financial Corporation 1997 Stock Option Plan,  incorporated
               by reference  to Exhibit 4.0 of S-8  Registration  Statement  No.
               33-32642.

     10.7.6    BOK Financial  Corporation  Directors' Stock Compensation Plan,
               incorporated  by  reference  to Exhibit  4.0 of S-8  Registration
               Statement No. 33-79836.

     10.7.7    Bank of Oklahoma Thrift Plan (Amended and Restated Effective as
               of January 1, 1995),  incorporated by reference to Exhibit 10.7.6
               of Form 10-K for the year ended December 31, 1994.

     10.7.8    Trust  Agreement for the Bank of Oklahoma Thrift Plan (December
               30, 1994),  incorporated  by reference to Exhibit  10.7.7 of Form
               10-K for the year ended December 31, 1994.

     10.8      Lease Agreement between One Williams Center Co. and National Bank
               of Tulsa  (predecessor to BOk) dated June 18, 1974,  incorporated
               by reference to Exhibit 10.9 of S-1  Registration  Statement  No.
               33-90450.

     10.9      Lease Agreement between Security Capital Real Estate Fund and BOk
               dated January 1, 1988, incorporated by reference to Exhibit 10.10
               of S-1 Registration Statement No. 33-90450.

    10.10      Asset Purchase  Agreement (OREO and other assets) between BOk and
               Phi-Lea-Em  Corporation  dated April 30,  1991,  incorporated  by
               reference  to Exhibit  10.11 of S-1  Registration  Statement  No.
               33-90450.

     10.11     Asset Purchase  Agreement  (Tanker  Assets) between BOk and Green
               River Exploration  Company dated April 30, 1991,  incorporated by
               reference  to Exhibit  10.12 of S-1  Registration  Statement  No.
               33-90450.

     10.12     Asset  Purchase  Agreement  (Recovery  Rights)  between  BOk  and
               Kaiser dated April 30, 1991, incorporated by reference to Exhibit
               10.13 of S-1 Registration Statement No. 33-90450.

     10.13     Purchase  and  Assumption  Agreement  dated  August 7, 1992 among
               First Gibraltar Bank, FSB, Fourth Financial  Corporation and BOk,
               as amended,  incorporated  by reference to Exhibit  10.14 of Form
               10-K for the fiscal year ended December 31, 1992.

     10.13.1   Allocation  Agreement  dated  August 7, 1992  between BOk and
               Fourth  Financial  Corporation,   incorporated  by  reference  to
               Exhibit  10.14.1 of Form 10-K for the fiscal year ended  December
               31, 1992.

     10.14     Merger  Agreement  among BOK Financial,  BOKF Merger  Corporation
               Number Two,  Brookside  Bancshares,  Inc.,  The  Shareholders  of
               Brookside  Bancshares,   Inc.  and  Brookside  State  Bank  dated
               December  22,  1992,  as amended,  incorporated  by  reference to
               Exhibit 10.15 of Form 10-K for the fiscal year ended December 31,
               1992.

     10.14.1   Agreement to Merge between BOk and Brookside  State Bank dated
               January 27, 1993, incorporated by reference to Exhibit 10.15.1 of
               Form 10-K for the fiscal year ended December 31, 1992.

     10.15     Merger  Agreement  among BOK Financial,  BOKF Merger  Corporation
               Number Three, Sand Springs Bancshares,  Inc., The Shareholders of
               Sand Springs  Bancshares,  Inc. and Sand Springs State Bank dated
               December  22,  1992,  as amended,  incorporated  by  reference to
               Exhibit 10.16 of Form 10-K for the fiscal year ended December 31,
               1992.

     10.15.1   Agreement to Merge  between BOk and Sand  Springs  State Bank
               dated  January 27,  1993,  incorporated  by  reference to Exhibit
               10.16.1 of Form 10-K for the fiscal year ended December 31, 1992.
<PAGE>13

     10.16     Partnership Agreement between  Kaiser-Francis Oil Company and BOK
               Financial  dated December 1, 1992,  incorporated  by reference to
               Exhibit 10.16 of Form 10-K for the fiscal year ended December 31,
               1993.

     10.16.1   Amendment to Partnership Agreement between  Kaiser-Francis Oil
               Company and BOK  Financial  dated May 17, 1993,  incorporated  by
               reference  to Exhibit  10.16.1  of Form 10-K for the fiscal  year
               ended December 31, 1993.

     10.17     Purchase and Assumption  Agreement between BOk and FDIC, Receiver
               of Heartland  Federal Savings and Loan Association  dated October
               9, 1993,  incorporated by reference to Exhibit 10.17 of Form 10-K
               for the fiscal year ended December 31, 1993.

     10.18     Merger   Agreement   among  BOk,  Plaza  National  Bank  and  The
               Shareholders  of Plaza  National  Bank dated  December  20, 1993,
               incorporated  by reference to Exhibit  10.18 of Form 10-K for the
               fiscal year ended December 31, 1993.

     10.18.1   Amendment to Merger  Agreement  among BOk, Plaza National Bank
               and The  Shareholders  of Plaza  National  Bank dated January 14,
               1994,  incorporated  by reference to Exhibit 10.18.1 of Form 10-K
               for the fiscal year ended December 31, 1993.

     10.19     Stock Purchase  Agreement  between Texas Commerce Bank,  National
               Association  and  BOk  dated  March  11,  1994,  incorporated  by
               reference to Exhibit 10.19 of Form 10-K for the fiscal year ended
               December 31, 1993.

     10.20     Merger  Agreement  among BOK Financial  Corporation,  BOKF Merger
               Corporation  Number  Four,  Citizens  Holding  Company and others
               dated May 11, 1994, incorporated by reference to Exhibit 10.20 of
               Form 10-K for the fiscal year ended December 31, 1994.

     10.21     Stock  Purchase  and Merger  Agreement  among  Northwest  Bank of
               Enid,  BOk  and  The  Shareholders  of  Northwest  Bank  of  Enid
               effective  as of May  16,  1994,  incorporated  by  reference  to
               Exhibit 10.21 of Form 10-K for the fiscal year ended December 31,
               1994.

     10.22     Agreement  and Plan of Merger  among BOK  Financial  Corporation,
               BOKF Merger  Corporation  Number Five and Park Cities Bancshares,
               Inc. dated October 3, 1996,  incorporated by reference to Exhibit
               C of S-4 Registration Statement No. 333-16337.

     10.23     Agreement and Plan of Merger among BOK Financial  Corporation and
               First  TexCorp.,  Inc. dated December 18, 1996,  incorporated  by
               reference  to Exhibit  10.24 of S-4  Registration  Statement  No.
               333-16337.

     13.0      Annual Report to Shareholders  for the fiscal year ended December
               31, 1997.  Such report,  except for those portions  thereof which
               are  expressly  incorporated  by  reference  in this  filing,  is
               furnished for the information of the Commission and is not deemed
               to be "filed" as part of this Annual Report on Form 10-K.

     21.0      Subsidiaries of BOK Financial.

     23.0      Consent of independent auditors - Ernst & Young LLP.

     27.0      Financial Data Schedule for year ended December 31, 1997

     27.1      Restated Financial Data Schedules

     99.0      Additional Exhibits.

     99.1      Undertakings  incorporated  by  reference  into S-8  Registration
               Statement  No.  33-44121 for Bank of Oklahoma  Master Thrift Plan
               and Trust, incorporated by reference to Exhibit 99.1 of Form 10-K
               for the fiscal year ended December 31, 1993.

     99.2      Undertakings  incorporated  by  reference  into S-8  Registration
               Statement No. 33-44122 for BOK Financial Corporation 1991 Special
               Stock Option Plan,  incorporated  by reference to Exhibit 99.2 of
               Form 10-K for the fiscal year ended December 31, 1993.

     99.3      Undertakings  incorporated  by  reference  into S-8  Registration
               Statement No. 33-55312 for BOK Financial  Corporation  1992 Stock
               Option  Plan,  incorporated  by reference to Exhibit 99.3 of Form
               10-K for the fiscal year ended December 31, 1993.
<PAGE>14

     99.4      Undertakings  incorporated  by  reference  into S-8  Registration
               Statement No. 33-70102 for BOK Financial  Corporation  1993 Stock
               Option  Plan,  incorporated  by reference to Exhibit 99.4 of Form
               10-K for the fiscal year ended December 31, 1993.

     99.5      Undertakings  incorporated  by  reference  into S-8  Registration
               Statement No. 33-79834 for BOK Financial  Corporation  1994 Stock
               Option  Plan,  incorporated  by reference to Exhibit 99.5 of Form
               10-K for the fiscal year ended December 31, 1994.

     99.6      Undertakings  incorporated  by  reference  into S-8  Registration
               Statement No. 33-79836 for BOK Financial  Corporation  Directors'
               Stock  Compensation  Plan,  incorporated  by reference to Exhibit
               99.6 of Form 10-K for the fiscal year ended December 31, 1994.

     99.7      Unertakings  incorporated  by  reference  into  S-8  Registration
               Statement No. 33-32642 for BOK financial  Corporation  1997 Stock
               Option  Plan,  Incorporated  by reference to Exhibit 99.7 of Form
               10-K for the fiscal year ended December 31, 1997.

       (B) REPORTS ON FORM 8-K

       None.

       (C) EXHIBITS REQUIRED BY ITEM 601 OF REGULATION S-K

       The  exhibits  listed in response to Item  14(A)(3)  are filed as part of
       this report.

       (D) FINANCIAL STATEMENT SCHEDULES

       None.


<PAGE>15

                                   SIGNATURES

Pursuant to the  requirements  of Section 13 and 15(d) of the  Securities
Exchange Act of 1934,  the  Registrant  has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.

                                       BOK FINANCIAL CORPORATION

DATE: March 23, 1998                BY: /s/George B. Kaiser
                                       ----------------------------------
                                       George B. Kaiser,
                                       Chairman of the Board of Directors

Pursuant to the requirements of the Securities Exchange Act of 1934, this
report has been signed below on March 23, 1998 , by the following persons
on behalf of the Registrant and in the capacities indicated.

OFFICERS
/s/ George B. Kaiser                        /s/ Stanley A. Lybarger
- ---------------------------------           -----------------------------
George B. Kaiser,                           Stanley A. Lybarger,
Chairman of the Board of Directors          Director, President and Chief
                                            Executive Officer

/s/ James A. White                          /s/ John C. Morrow
- ---------------------------------           -----------------------------
James A. White,                             John C. Morrow
Executive Vice President and                Senior Vice President and
Chief Financial Officer/Treasurer           Controller, Financial Accounting

DIRECTORS

                                        /s/ Robert J. LaFortune
 -----------------------------------  ----------------------------------------
 W. Wayne Allen                       Robert J. LaFortune

 /s/ Keith E. Bailey                    /s/ Philip C. Lauinger, Jr.
 -----------------------------------  ----------------------------------------
 Keith E. Bailey                      Philip C. Lauinger, Jr.

                                        /s/ David R. Lopez
 -----------------------------------  ----------------------------------------
 James E. Barnes                      David R. Lopez

  /s/ Sharon J. Bell                    /s/ Frank A. McPherson
  ----------------------------------   ---------------------------------------
 Sharon J. Bell                       Frank A. McPherson

  /s/ Glenn A. Cox
 -----------------------------------  ----------------------------------------
 Glenn A. Cox                         J. Larry Nichols

  /s/ Nancy J. Davies                   /s/ Robert L. Parker, Sr.
 -----------------------------------  ----------------------------------------
 Nancy J. Davies                      Robert L. Parker, Sr.


  ----------------------------------   ----------------------------------------
 Robert H. Donaldson                  James W. Pielsticker


  ----------------------------------   ----------------------------------------
 William E. Durrett                   E.C. Richards

                                        /s/ James A. Robinson
  ----------------------------------   ----------------------------------------
 James O. Goodwin                     James A. Robinson

  /s/ V. Burns Hargis                   /s/ L. Francis Rooney, III
  ----------------------------------   ----------------------------------------
 V. Burns Hargis                      L. Francis Rooney, III

  /s/ E. Carey Joullian, IV             /s/ Robert L. Zemanek
  ----------------------------------   ----------------------------------------
 E. Carey Joullian, IV                 Robert L. Zemanek



                            BOK FINANCIAL CORPORATION

                                   EXHIBIT 13

                          ANNUAL REPORT TO SHAREHOLDERS



                                Table of Contents

               Consolidated Selected Financial Data                5

               Management's Assessment of Operations and
                 Financial Condition                               6

               Selected Quarterly Financial Data                  12

               Report of Management on Financial Statements       19

               Report of Independent Auditors                     19

               Consolidated Financial Statements                  20

               Notes to Consolidated Financial Statements         25

               Annual Financial Summary                           44

               Quarterly Financial Summary                        46

               Appendix A                                         48

<PAGE>

 <TABLE>
Financial Highlights
(Dollars In Thousands Except Share Data)

                                                        1997            1996            1995
                                                   --------------- --------------- -----------
  For the Years Ended December 31
<S>                                                <C>          <C>            <C>          
     Net income                                    $    64,625  $      54,127  $      49,205

     Earnings per share:
       Basic                                              2.89           2.41           2.19
       Diluted                                            2.58           2.18           1.99

     Return on average assets                             1.27%          1.26%          1.22%
     Return on average equity                            16.41          16.80          18.07
  --------------------------------------------------------------- -------------- -------------
  Tangible operating results:
     Tangible net income                           $    72,536    $    61,336    $    54,050
     Tangible net income per diluted share                2.90           2.47           2.18
     Return on tangible assets                            1.44%          1.44%          1.35%
     Return on tangible shareholders' equity             22.13          21.18          23.28
  --------------------------------------------------------------- -------------- -------------
  As of December 31
     Loans, net of reserves                        $ 2,711,992    $ 2,349,432    $ 2,156,081
     Assets                                          5,399,642      4,620,700      4,244,118
     Deposits                                        3,728,079      3,256,755      2,937,709
     Shareholders' equity                              435,477        359,966        301,565
     Nonperforming assets                               42,203         42,227         42,066
  --------------------------------------------------------------- -------------- -------------
     Book value per common share                   $     19.45    $     15.98     $    13.36
     Common shares outstanding (diluted)            25,285,089     25,025,437     23,951,095
  --------------------------------------------------------------- -------------- -------------
     Tier 1 capital ratio                                 9.39%         10.49%          9.91%
     Total capital ratio                                 14.54          11.74          11.17
     Leverage ratio                                       6.81           7.46           6.55
     Shareholders' equity to total assets                 8.06           7.79           7.11

     Reserve for loan losses to nonperforming loans     143.73         119.91          99.02
     Reserve for loan losses to loans1                    1.98           1.96           1.80
     Net charge offs (recoveries) to average loans         .14           (.12)           .01
  --------------------------------------------------------------- -------------- -------------
<FN>
1 Excludes  residential mortgage loans held for sale which are
carried at the lower of aggregate cost or market value.
</FN>
</TABLE>

                    1      Management Letter

                    5      Management's Assessment of Operations and Financial 
                           Condition

                  19       Report of Management on Financial Statements

                  19       Report of Independent Auditors

                  20       Consolidated Financial Statements

                  48       Appendix A

                  49       Shareholder and Corporate Information


<PAGE>1


To Our Shareholders,
Customers, Employees and Friends:


Your  company  had a very  good  year  in 1997 in  virtually  every  area of its
operations.  o Net income increased 19.4 percent to $64.6 million,  or $2.58 per
share. o Non interest  revenue grew at an outstanding  pace,  increasing by 23.2
percent.
     * These fee-based  services comprised more than 45 percent of total revenue
     for  1997,  one of the very  highest  such  levels  among  our peers in the
     banking industry, and a clearly distinguishing feature of our company.
          - Our  TransFund  ATM network led all of our lines of business  with a
          revenue increase of 36 percent to a new high level of $12 million. The
          TransFund Check Card was used to make 14 million purchases - more than
          double the 1996 volume.
          - Mortgage  banking  revenue  grew by 23 percent to $32  million.  BOk
          Mortgage's  servicing portfolio in 1997 approached $7 billion - 92,000
          loans.  Its market  position  within  Oklahoma  is  dominant,  and its
          expansion  into  surrounding  states  is  making  encouraging  initial
          progress.
          - Our combined retail and  institutional  brokerage areas increased 21
          percent, with revenue of almost $10 million.
          - Fee income on deposit  and related  services  was up 19 percent to a
          new high of almost $29 million.
          - Our trust division  assets grew from $7.5 billion in assets to $11.1
          billion.  Revenue grew 11 percent to more than $24  million.  

We are very pleased with our success competing  against the larger  out-of-state
organizations  that have entered  Oklahoma.  Largely  because of the  disruption
caused  by these  ownership  changes,  we  gained a  substantial  number  of new
commercial  relationships  during 1997. Our loans  increased 15 percent over the
prior year.

Our entry into the Dallas Metroplex, including the acquisition of First National
Bank of Park Cities and First Texas Bank,  has been very  positive,  setting the
stage for substantial  future growth. We have attracted to our company some very
talented and  experienced  people to make a major push in  commercial  and trust
services in the Metroplex during 1998.

(Net Income graph appears on this page.  See Appendix A graph I.)

<PAGE>2

In our  Operations & Technology  Division,  we  established  a formal  systems
direction for our future  technology.  

We placed $150 million in  subordinated  debt of Bank of  Oklahoma.  This issue,
rated  investment  grade by both major  rating  agencies,  represents  our first
public debt financing.

BOK Financial Corp.  became the smallest  holding company in the nation approved
to  underwrite  municipal  revenue  bonds  with the  approval  to form  Alliance
Securities Corp.


BOKF'S EXCITING OPPORTUNITIES IN A TIME OF BANKING CONSOLIDATION

Over the past several years, we have succeeded in building Bank of Oklahoma into
a  position  of  dominance  in  our  home  state.   The  challenge  we  face  is
strengthening  that position while expanding into surrounding states in a manner
that  capitalizes  on our  strengths  which can be brought to those new markets.
National  banking  consolidation  is creating new "carbon copy" banks that allow
the  customer  to  choose  from a  pre-selected  menu  like  that of a fast food
franchise.  We believe that many customers  prefer a true community bank with an
officer who has the  authority  and the ability to fashion a solution that truly
meets the customer's specific and individual needs. There are now only a handful
of banks left which are  committed  to providing  NATIONAL  BANK  SERVICES  WITH
COMMUNITY BANK CUSTOMER  SENSITIVITY AND LOCAL KNOWLEDGE.  BOKF will continue to
fill  that  need  and  will  be  rewarded  with  profitable  growth  in  1998 by
concentrating  on  these  strategies.  

     Continue  to take  advantage  of the  acquisition  of our  principal  large
     competitors to generate an increasingly dominant Oklahoma franchise.  Areas
     of strong potential growth are in small business lending, private financial
     services, and the public and not-for-profit sector.

     Build major  positions in new markets in Texas and Arkansas.  Our expansion
     into these  markets will  continue to be a targeted  one,  with emphasis on
     commercial lending,  corporate services, trust, and mortgage banking, where
     we  have  demonstrated  that  we  have  superior   expertise  that  can  be
     effectively delivered in large, fast growing markets.

     Acquire top performing financial  institutions in surrounding states with a
     strong  emphasis  on  identifying  companies  with the  right  fit with BOK
     Financial. Our ideal partners would be those with a strong market position,
     good  management  which wants to remain with the company and an interest in
     expanding their customer service into the business lines in which we excel.

(Earnings Per Share graph appears on this page.  See Appendix A, graph II.)

(Non Interest Revenue graph appears on this page.  See Appendix A, graph III.)

<PAGE>3

     Develop our existing and new niche lines of  business,  including  merchant
     banking, insurance, self-directed 401(k) plans, security underwriting, etc.

     Improve our  efficiency  ratio.  During the past two years,  we have placed
     only secondary emphasis on internal  efficiency,  choosing to add personnel
     and  systems  to  take   advantage  of  the   opportunities   that  banking
     consolidation  provided for us. As we accomplish our market objectives,  we
     will gradually shift more emphasis to operating efficiency.

BOARD ADDITIONS

Our board of  directors  has long been  comprised of the leaders in our region's
business and civic community - it has included the CEO's of 10 of the 13 largest
publicly held companies in Oklahoma and successful,  respected entrepreneurs and
community  leaders from throughout our region.  We were fortunate to add several
prominent new members to the board last year.

     John Massey, outstanding banker and Oklahoma business leader.

     Steven E.  Moore,  Chairman  of the Board,  President  and CEO,  OGE Energy
     Corp., Oklahoma's largest electric utility.

     J.  Larry  Nichols,  President  and CEO,  Devon  Energy  Corp.,  one of the
     country's leading independent oil and gas companies.

     E. C. Richards, Senior Vice President,  Operations,  Sooner Pipe and Supply
     Corp.,  one of the  largest  oil and gas  supply  companies  in the  United
     States.

     David J. Tippeconnic,  President and CEO, Citgo Petroleum Corp., one of the
     largest petroleum refiners and marketers in the U.S.

     Wayne D. Stone, Chairman and CEO, Bank of Arkansas.

     Tom E. Turner, Chairman and CEO, Bank of Texas.


ORGANIZATIONAL CHANGES

         From a strategic standpoint, a key challenge to BOKF is to continue our
growth as a  geographically  diverse  company while  maintaining a strong credit
culture. We have been pleased to experience no net charge-offs in our commercial
loan  portfolio  over the past five year period,  but we realize that we need to
prepare for the times when we encounter more normal loss potential. We therefore
reassigned  one of our most senior,  seasoned  credit  officers,  Executive Vice
President Gene Harris from head of Tulsa commercial lending

(Loan graph appears on this page.  See Appendix A, graph IV.)

(Real Estate Loans graph appears on this page.  See Appendix A, gragh.)

<PAGE>4

to a new position as Senior Credit Executive, with system-wide responsibilities.
Gene's  lending  experience  and strong  credit  mind will enable him to oversee
credit  underwriting in each of our banks, while fostering the local autonomy in
each of our markets that is crucial to our success.
    On January 1, 1998, we combined  First  National Bank of Park Cities,  First
Texas Bank, and Alliance Trust Company to form the Bank of Texas. Park Cities is
the  preeminent  private  bank in north  Dallas,  and First Texas is the leading
small  business  bank. We were  successful  in  attracting an extremely  skilled
commercial  lending staff under the  management of C. Fred Ball, who has devoted
most of his  career to the  Dallas  commercial  banking  market.  Fred was named
President of Bank of Texas during 1997, and reports to Tom Turner, CEO.
    Late in 1997,  Wayne Stone,  formerly our  President of  BOk-Oklahoma  City,
transferred  to head Bank of Arkansas.  Our plans for Bank of Arkansas  call for
expansion into several other areas of the state,  and Wayne has the challenge of
managing that expansion.  Mark Funke succeeded Wayne as President,  BOk-Oklahoma
City and V. Burns  Hargis  joined us as Vice  Chairman.  Burns has served on the
board  of  directors  of BOK  Financial  for  many  years  and  will  add to our
leadership position in Oklahoma City and throughout the state.

    Our  progress  in  1997  is the  result  of our  organization's  fundamental
strengths,  including  especially our talented and dedicated people, and we have
established a firm foundation for continued future growth.  Our  diversification
in fee-based  services  provides a source of earnings  less  susceptible  to the
credit cycle.  Our expansion  into Texas holds a promise of improved  geographic
diversification  and a  market  which  provides  substantial  opportunities  for
growth. Our base in Oklahoma is strong, and we are doing our best to grow in our
home state with aggressive  marketing - while  maintaining the level of superior
service that is our hallmark.
    As always, we invite your comments, questions and suggestions.


Sincerely,

George B. Kaiser                                             Stanley A. Lybarger
Chairman of the Board                                        President and Chief
                                                             Executive Officer

(Funding graph appears on this page.  See Appendix A, graph VI.)


<PAGE>5


<TABLE>
Table 1    Consolidated Selected Financial Data
           (Dollars In Thousands Except Share Data)                                   BOK Financial
                                                            -------------------------------------------------------------------

                                                                 1997         1996         1995         1994         1993(1)
                                                            -------------------------------------------------------------------
Selected Financial Data
   For the year:
<S>                                                         <C>           <C>          <C>          <C>          <C>        
     Interest revenue                                       $   344,548   $   290,532  $   275,441  $   223,058  $   181,354
     Interest expense                                           188,948       163,093      160,177      104,055       74,586
     Net interest revenue                                       155,600       127,439      115,264      119,003      106,768
     Provision for loan losses                                    9,026         4,267          231          195        3,376
     Income before cumulative effect of
       change in accounting principle                            64,625        54,127       49,205       45,065       37,902
     Net income                                                  64,625        54,127       49,205       45,065       39,472
   Period-end:
     Loans, net of reserve                                    2,711,992     2,349,432    2,156,081    1,805,782    1,641,294
     Assets                                                   5,399,642     4,620,700    4,244,118    3,927,276    3,147,041
     Deposits                                                 3,728,079     3,256,755    2,937,709    2,629,574    2,610,927
     Subordinated debenture                                     148,356             -            -       23,000       23,000
     Shareholders' equity                                       435,477       359,966      301,565      236,902      213,943
     Nonperforming assets                                        42,203        42,227       42,066       31,881       23,452

Profitability Statistics
   Per share (based on average equivalent shares): 
     Basic earnings:
       Income before cumulative effect of
         change in accounting for income     
         taxes                                              $      2.89   $      2.41  $      2.19  $      1.99  $      1.69
       Net income                                                  2.89          2.41         2.19         1.99         1.77
     Diluted earnings:
       Income before cumulative effect of
         change in accounting for income taxes                     2.58          2.18         1.99         1.81         1.54
       Net income                                                  2.58          2.18         1.99         1.81         1.60
   Percentages (based on daily averages):
     Return on average assets(3)                                   1.27%         1.26%        1.22%        1.26%        1.26%
     Return on average shareholders' equity(3)                    16.41         16.80        18.07        19.92        20.07
     Average shareholders' equity to average assets                7.73          7.49         6.73         6.32         6.27

Common Stock Performance and Existing Shareholder Statistics
   Per Share:
   Book Value of common shareholders' equity                $     19.45   $     15.98   $    13.36  $     10.44  $      9.08
                                                                                                         
   Market price: December 31 bid                                  38.81         27.00        19.50        20.00        24.75
   Market range - High bid                                        42.50         27.00        23.50        25.00        25.50
                - Low bid                                         26.88         19.25        18.50        19.00        17.50
   Other statistics:
     Common shareholders at December 31                           1,227         1,674        1,676        1,748        1,924

Selected Balance Sheet Statistics
   Period-end:
     Tier 1 capital ratio                                          9.39%        10.49%        9.91%        9.14%        9.07%
     Total capital ratio                                          14.54         11.74        11.17        11.19        11.49
     Leverage ratio                                                6.81          7.46         6.55         5.64         5.76
     Reserve for loan losses to nonperforming loans              143.73        119.91        99.02       137.76       233.92
     Reserve for loan losses to loans(2)                           1.98          1.96         1.80         2.12         2.50

Miscellaneous (at December 31)
   Number of employees (FTE)                                      2,318         2,102        1,842        1,801        1,741
   Number of banking locations                                       73            69           66           63           55
   Number of TransFund locations                                    782           635          549          520          614
   Mortgage loan servicing portfolio                         $6,981,744    $5,948,187   $5,363,175   $5,080,859   $3,483,993
- -------------------------------------------------------------------------------------------------------------------------------
<FN>
(1) Restated for poolings-of-interests which occurred in 1994.
(2) Excludes  residential mortgage loans held for sale which are carried at
    the lower of aggregate  cost or market value.  
(3) Excludes the  cumulative
    effect of change in accounting for income taxes in 1993.
</FN>
</TABLE>

<PAGE>6

MANAGEMENT'S ASSESSMENT OF OPERATIONS AND FINANCIAL CONDITION


     BOK Financial Corporation ("BOK Financial") is a bank holding company which
offers full service banking in Oklahoma, Northwest Arkansas and North Texas. BOK
Financial's  principal  subsidiaries are Bank of Oklahoma,  NA ("BOk"),  Bank of
Arkansas, NA ("BOA"), and Bank of Texas, NA ("BOT"). BOT includes First National
Bank of Park  Cities and First Texas Bank,  both of which were  acquired  during
1997 and merged on January 1, 1998 to form BOT, and Bank of Texas Trust Company,
N.A.  (formerly  Alliance  Trust Company,  N.A.).  Other  significant  operating
subsidiaries include BOK Capital Services Corporation which provides leasing and
mezzanine  financing  and  Alliance  Securities  Corp.  which is  authorized  to
underwrite  municipal  revenue  bonds,  asset-backed  securities  and commercial
paper.


ASSESSMENT OF OPERATIONS

SUMMARY OF PERFORMANCE

     BOK  Financial  recorded net income of $64.6  million for 1997  compared to
$54.1  million for 1996.  Diluted  earnings per common share were $2.58 for 1997
compared to $2.18 for 1996.  Prior  period per share data have been  restated to
reflect the calculation  methods  required by Statement of Financial  Accounting
Standards No. 128, "Earnings per Share," which was effective in December,  1997.
Returns  on  average   assets  and   average   equity  were  1.27%  and  16.41%,
respectively, for 1997 compared to 1.26% and 16.80%, respectively, for 1996.
     The increase in net income for 1997 was due to  increases of $28.2  million
or 22.1% in net interest  revenue and $24.4 million or 23.2% in other  operating
revenue.  These increases were partially  offset by a $36.1 million  increase in
operating expenses and a $4.8 million increase in provision for loan losses.
     Net income for the  fourth  quarter of 1997 was $16.8  million or $0.67 per
diluted  common  share,  an increase of 15.5% over the same period of 1996.  The
primary sources of increased  quarterly  earnings included net interest revenue,
which  increased  $9.5  million  or 29.4% and  other  operating  revenue,  which
increased $6.0 million or 21.7%.  These increases were offset by a $23.0 million
increase in operating expenses,  which included a $4.1 million provision for the
potential impairment of mortgage loan servicing rights and a $3.6 million charge
for the cost of stock contributed to the BOK Charitable Foundation.
     Additionally,  BOK Financial  recorded an income tax credit of $6.4 million
due to the reversal of $9.0 million of reserves for disputed items which were no
longer required.
     BOK  Financial's net income for 1995 was $49.2 million or $1.99 per diluted
common  share.  Returns on  average  assets and  average  equity  were 1.22% and
18.07%, respectively.


TANGIBLE OPERATING RESULTS

     Since  inception,  BOK  Financial  has  completed  acquisitions  which were
accounted  for under the purchase  method of  accounting.  The  purchase  method
results in the recording of goodwill and other identified intangible assets that
are amortized as noncash charges in future years into operating expense. This is
in contrast to the "pooling of interests"  method,  which is only  applicable in
certain limited  circumstances.  The pooling of interests method does not result
in the recording of goodwill or other intangible assets.  Since the amortization
of goodwill and other intangible assets does not result in a current period cash
expense,  the economic value to shareholders  under either  accounting method is
essentially the same. Operating results excluding the impact of these intangible
assets are summarized below:


Table 2    Tangible Operating Results
           (Dollars in Thousands Except Share Data)                
                                                          BOK Financial
                                        ----------------------------------------
                                            1997          1996          1995
                                        ------------- ------------- ------------
Net income                              $    64,625  $     54,127  $     49,205
After-tax impact of amortization of           7,911         7,209         4,845
 intangible assets
- --------------------------------------- ------------- ------------- ------------
Tangible net income                     $    72,536  $     61,336  $     54,050
- --------------------------------------- ------------- ------------- ------------

Tangible net income per diluted share   $      2.90  $       2.47 $        2.18
- --------------------------------------- ------------- ------------- ------------

Average tangible shareholders' equity   $   327,719   $   289,603   $   232,203
Return on tangible shareholders' equity       22.13%        21.18%        23.28%
- --------------------------------------- ------------- ------------- ------------

Average tangible assets                 $ 5,024,557   $ 4,269,774   $ 4,006,031
Return on tangible assets                      1.44%         1.44%         1.35%
- --------------------------------------- ------------- ------------- ------------


<PAGE>7

NET INTEREST REVENUE

     Net interest revenue, on a tax-equivalent basis, totaled $165.2 million for
1997 compared to $135.8 million in 1996.  This increase in net interest  revenue
was due to increases in both net interest margin and average earning assets. The
yield on average earning assets increased from 7.79% in 1996 to 7.85% in 1997 as
both securities and loans showed yield increases.  At the same time, the cost of
interest-bearing liabilities decreased from 4.94% to 4.88% due primarily to a 22
basis  point  decrease in rates paid on  deposits.  Interest  rate swaps,  which
primarily hedge against interest rate risk on certain long-term  certificates of
deposit  and  long-term  subordinated  debt,  reduced  interest  expense by $1.2
million  in 1997  compared  to $1.4  million  in 1996.  Average  earning  assets
increased $676 million,  including $265 million from acquisitions,  $216 million
from net loan fundings and $172 million from securities purchases. Over the same
period, average interest-bearing  liabilities increased $573 million,  including
$190 million from  acquisitions,  $294 million from borrowed funds,  $64 million
from a subordinated debenture offering and $26 million from deposits. The growth
in average  earning  assets in excess of the growth in average  interest-bearing
liabilities contributed $23.3 million to 1997's increase in net interest income.


<TABLE>
Table 3    Volume/Rate Analysis
             (In Thousands)                                    1997/1996                                1996/1995
                                                  -------------------------------------    ------------------------------------
                                                                   Change Due To(1)                          Change Due To(1)
                                                               ------------------------                ------------------------
                                                    Change       Volume    Yield/Rate        Change      Volume     Yield/Rate
                                                  ------------ ----------- ------------    ----------- ------------ -----------
  Tax-equivalent interest revenue:
<S>                                                <C>           <C>        <C>            <C>         <C>            <C>     
   Securities                                      $23,164       $19,843    $  3,321       $ (1,800)   $    (408)     $(1,392)
   Trading securities                                  (53)          (20)        (33)            98           94            4
   Loans                                            30,745        30,271         474         17,486       21,116       (3,630)
   Funds sold and resell agreements                  1,362         1,337          25            634          734         (100)
  ----------------------------------------------- ------------ ----------- ------------ -- ----------- ------------ -----------
      Total                                         55,218        51,431       3,787         16,418       21,536       (5,118)
  ----------------------------------------------- ------------ ----------- ------------ -- ----------- ------------ -----------
  Interest expense:
   Transaction deposits                              4,755         6,488      (1,733)         3,060        2,995           65
   Savings deposits                                    (97)          129        (226)          (493)        (428)         (65)
   Time deposits                                      (682)          511      (1,193)        17,760       18,321         (561)
   Borrowed funds                                   17,713        16,788         925        (17,059)     (13,435)      (3,624)
   Subordinated debenture                            4,166         4,166           -           (352)        (352)           -
  ----------------------------------------------- ------------ ----------- ------------ -- ----------- ------------ -----------
      Total                                         25,855        28,082      (2,227)         2,916        7,101       (4,185)
  ----------------------------------------------- ------------ ----------- ------------ -- ----------- ------------ -----------
  Tax-equivalent net interest revenue               29,363       $23,349    $  6,014         13,502      $14,435     $   (933)
  Change in tax-equivalent adjustment               (1,202)                                  (1,327)
  ----------------------------------------------- ------------ ----------- ------------ -- ----------- ------------ -----------
  Net interest revenue                             $28,161                                  $12,175
  =============================================================================================================================
</TABLE>

                                             4th Qtr 1997/4th Qtr 1996
                                        -------------------------------------
                                                         Change Due To(1)
                                                     ------------------------
                                          Change       Volume    Yield/Rate
                                        ------------ ----------- ------------
  Tax-equivalent interest revenue:
   Securities                           $  4,903     $  3,704    $  1,199
   Trading securities                         21           39         (18)
   Loans                                  10,510        9,569         941
   Funds sold and resell agreements          368          403         (35)
  ------------------------------------- ------------ ----------- ------------
      Total                               15,802       13,715       2,087
  ------------------------------------- ------------ ----------- ------------
  Interest expense:
   Transaction deposits                      788        1,733        (945)
   Savings deposits                            1           57         (56)
   Time deposits                             455          718        (263)
   Borrowed funds                          2,462        2,365          97
   Subordinated debenture                  2,439        2,439           -
  ------------------------------------- ------------ ----------- ------------
      Total                                6,145        7,312      (1,167)
  ------------------------------------- ------------ ----------- ------------
  Tax-equivalent net interest revenue      9,657     $  6,403    $  3,254
  Change in tax-equivalent adjustment       (189)
  ------------------------------------- ------------ ----------- ------------
  Net interest revenue                  $  9,468
  ===========================================================================
(1)  Changes  attributable to both volume and yield/rate are allocated to
     both volume and yield/rate on an equal basis.


<PAGE>8

     Net interest  margin,  the ratio of net interest revenue to average earning
assets,  increased  from 3.54% in 1996 to 3.66% in 1997.  This  increase was due
primarily to yield  improvements  on  securities  and loans  combined with lower
rates paid on deposits.  The yield  improvement on securities and loans reflects
repricing opportunities in response to a 25 basis point increase in the national
prime rate late in the first quarter of 1997.  BOK Financial has been working to
reduce its overall cost of funds  primarily by lowering  rates paid on deposits.
These  efforts have been  successful as shown by the reduction in both the rates
paid  on  deposits  and in the  overall  cost of  interest-bearing  liabilities.
However,  this  strategy  has limited the growth in deposits and has required an
increase in borrowings to fund asset growth.
     Since  inception in 1990,  BOK  Financial  has followed a strategy of fully
utilizing  its capital  resources by borrowing  funds in the capital  markets to
supplement  deposit growth and to invest in  securities.  Although this strategy
frequently  results in a net interest  margin  which falls below those  normally
seen in the  commercial  banking  industry,  it provides  positive  net interest
revenue.  Management  estimates  that for 1997,  this strategy  resulted in a 66
basis point decrease in net interest margin.  However, this strategy contributed
$16.5 million to net interest  revenue for the year. As more fully  discussed in
the subsequent  Market Risk Section,  management  employs various  techniques to
control,  within  established  parameters,  the interest rate and liquidity risk
inherent in this strategy.
     During 1997, two super regional banks completed significant acquisitions in
Oklahoma.  The financial  services  environment  in Oklahoma was already  highly
competitive due to a large number of commercial  banks,  thrifts,  credit unions
and  brokerage  firms in the state.  Additionally,  many  customers  already had
access to national and regional  financial  institutions  for many  products and
services.  Management  expects that BOK  Financial  will  continue to be able to
successfully compete with these financial institutions.
     Tax-equivalent  net  interest  revenue  for the fourth  quarter of 1997 was
$44.1 million  compared to $34.5 million for the fourth quarter of 1996.  Yields
on average  earning  assets  increased 17 basis points to 7.89% due primarily to
the repricing of variable rate loans in response to a 25 basis point increase in
the national prime rate late in the first quarter of 1997. At the same time, the
cost of  interest-bearing  liabilities  decreased  13 basis  points to 4.84% due
primarily to lower rates paid on deposits. Additionally,  average earning assets
increased by $696 million while  interest-bearing  liabilities increased by $581
million. This contributed $6.4 million to the increase in net interest revenue.
     Net interest  revenue on a  tax-equivalent  basis for 1996 increased  $13.5
million to $135.8 million compared to 1995 totals.  This was due to increases in
both net interest  margin and average earning  assets.  BOK Financial  continued
efforts to restructure its funding sources in 1996 which increased  deposits and
decreased borrowed funds. This resulted in a 17 basis point decrease in the cost
of  interest-bearing  liabilities.  Over this same period,  the yield on average
earning assets decreased 5 basis points.  However, the growth in average earning
assets  exceeded  the  growth in  average  interest-bearing  liabilities  by $69
million.


OTHER OPERATING REVENUE

     Other operating revenue, which consists primarily of fee income on products
and services,  increased  $24.4 million or 23.2% compared to 1996. This increase
kept other operating  revenue at 45% of total revenue,  which is consistent with
1996. Service fees on deposits totaled $28.7 million,  an increase of 18.9% over
1996, while revenue  generated by card-based  transactions such as the TransFund
ATM network, bankcards and related merchant deposits increased by 35.3% to $19.3
million.  These  increases are generally due to a higher volume of  transactions
processed in 1997. Leasing revenue increased to $5.9 million in 1997 compared to
$2.2  million  in  1996.   The  financing  of  specialty  oil  field  and  other
energy-related  equipment,  primarily through operating leases, was developed in
1996 and continued to grow in 1997.
     Many of BOK  Financial's fee generating  activities,  such as brokerage and
trading activities,  trust fees, and mortgage servicing revenue, are affected by
changes in interest rates.  Significant  increases in interest rates may tend to
decrease  the  volume of  trading  activities,  and may lower the value of trust
assets  managed,  which is the basis of certain fees, but would tend to decrease
the incidence of mortgage loan  prepayments.  Similarly,  a decrease in economic
activity would decrease ATM, bankcard and related revenue.

<TABLE>
Table 4    Other Operating Revenue
           (In Thousands)                                             BOK Financial
                                             ------------------------------------------------------------
                                                 1997         1996       1995        1994        1993
                                             ------------- ----------- ---------- ----------- -----------
<S>                                          <C>           <C>          <C>       <C>         <C>     
Brokerage and trading revenue                $    9,556    $    7,896   $  6,046  $  5,517    $  7,107
Transaction card revenue                         19,339        14,298     11,045     8,474       7,872
Trust fees and commissions                       24,062        21,638     19,363    17,117      16,824
Service charges and fees on deposit accounts     28,651        24,104     21,152    20,698      20,825
Mortgage banking revenue                         32,235        26,234     20,336    15,868      12,564
Leasing revenue                                   5,861         2,236        586         -           -
Other revenue                                    10,013        10,769      9,512     8,299       8,848
- -------------------------------------------- ------------- ----------- ---------- ----------- -----------
  Total fees and commissions                    129,717       107,175     88,040    75,973      74,040
- -------------------------------------------- ------------- ----------- ---------- ----------- -----------
Gain on student loan sale                         1,311         1,069        762       259         674
Gain (loss) on branch sales                           -          (325)     1,170         -           -
Gain (loss) on securities                        (1,329)       (2,607)     1,174    (1,868)      1,896
- -------------------------------------------- ------------- ----------- ---------- ----------- -----------
  Total other operating revenue                $129,699      $105,312    $91,146   $74,364     $76,610
=========================================================================================================
</TABLE>

<PAGE>9

     While management expects continued growth in other operating  revenue,  the
rate of  increase  achieved  in 1997  may not be  sustainable  due to  increased
competition  from national and regional  financial  institutions and from market
saturation. Continued growth may require BOK Financial to introduce new products
or to enter new  markets  which  introduces  additional  demands on capital  and
managerial  resources.  During 1997,  BOK Financial  received  approval from the
federal  banking  regulators  to  begin  securities   underwriting  through  its
subsidiary,  Alliance  Securities  Corp.  ("ASC").  The primary  focus of ASC is
underwriting  municipal revenue bonds and performing financial advisory services
for communities in Oklahoma and surrounding  states.  Although these  activities
had minimal effect on BOK  Financial's  operating  results in 1997, they present
additional risks to the company.  These risks include the failure to comply with
various  laws and  regulations  which govern  these  activities,  the failure to
perform as represented to clients and the inability to  successfully  compete in
this area.  Management has provided  additional human and other resources to ASC
to address these risks.
     Other  operating  revenue  for the  fourth  quarter of 1997  totaled  $33.5
million  compared  to  $27.5  million  for  the  fourth  quarter  of  1996.  All
significant revenue producing activities contributed to this increase, including
$2.2 million from mortgage banking,  $1.8 million from card-based fees, and $1.2
million from trust fees and commissions.
     Other  operating  revenue for 1996  increased  $14.2  million or 15.5% when
compared to 1995. Excluding gains and losses from securities sales, student loan
sales and branch  facilities  sales from both  years,  other  operating  revenue
increased  $19.1 million or 21.7%.  This increase was primarily due to growth in
all areas,  including  mortgage banking revenue which increased $5.9 million and
card-based fees which increased $3.3 million.
     Other  operating  revenue  includes  fees,   commissions  and  certain  net
marketing  gains and losses from trust and mortgage  banking  activities.  While
trust and mortgage banking  activities are integral parts of a commercial bank's
operations, their revenue and expenses are attributable primarily to off-balance
sheet  assets.  The  effects of trust and  mortgage  banking  activities  on BOK
Financial's operations are discussed in the following sections.

TRUST

     BOK Financial  provides a wide range of trust services  through the Bank of
Oklahoma Trust Division  (formerly  BancOklahoma  Trust Company) in Oklahoma and
Bank of Texas Trust Company,  N.A.  (formerly  Alliance  Trust  Company,  NA) in
Texas.  At December  31, 1997,  trust  assets with an aggregate  market value of
$11.1 billion were subject to various fiduciary  arrangements,  compared to $7.5
billion at December 31, 1996.  This increase in assets was due primarily to $3.1
billion from new accounts,  including $2.0 billion in new employee  benefit plan
assets. A summary of both direct and internally  allocated revenues and expenses
from trust operations are (in thousands):


                                1997         1996        1995
                             ------------ ----------- -----------

         Total revenue         $28,901      $25,682     $22,428
         Personnel expense      11,213        9,603       8,930
         Other expense           9,341        8,420       8,563
         ------------------- ------------ ----------- -----------
         Total expense          20,554       18,023      17,493
         ------------------- ------------ ----------- -----------
         Operating profit     $  8,347     $  7,659    $  4,935
         ========================================================


MORTGAGE BANKING

     BOK Financial is engaged in mortgage banking activities through the Bank of
Oklahoma  Mortgage  Division  (formerly   BancOklahoma  Mortgage  Corp.).  These
activities  include the origination,  marketing and servicing of mortgage loans.
Notes  1 and 7 to  the  Consolidated  Financial  Statements  provide  additional
information regarding mortgage banking activities.
     Origination and marketing activities resulted in a net gain of $1.5 million
in 1997 compared to a net gain of $48 thousand in 1996.  The  improvement is due
to an  increase  in the volume of loans  originated  and to  improved  secondary
market conditions during 1997. Total mortgage loan production for 1997 increased
$116 million to $830 million compared to $714 million in 1996.
     Commitments  to  originate  mortgage  loans  subject BOK  Financial to both
credit and  interest  rate risk.  Credit  risk is managed  through  underwriting
policies and  procedures,  and interest  rate risk is partially  hedged  through
forward sales contracts.  BOK Financial  generally sells all fixed rate mortgage
loans in the  secondary  market  pursuant  to forward  sales  contracts  and all
adjustable rate mortgage loans to an affiliate. BOK Financial currently does not
securitize  pools of mortgage  loans either for sale or retention.  Consolidated
mortgage  loan  servicing  revenue for 1997 was $30.7  million,  a $4.5  million
increase over 1996. This increase  reflects bulk purchases and loan  origination
which increased the mortgage  servicing  portfolio to $7.0 billion at the end of
1997 from $5.9 billion at the end of 1996.  These amounts include loans serviced
for BOk of $216  million  and $243  million  for 1997  and  1996,  respectively.
Capitalized  mortgage servicing rights,  which totaled $83.9 million at December
31, 1997 and $61.5 million at December 31, 1996, represent the value of mortgage
loans serviced for others and are carried at the lower of amortized cost or fair
value.  Fair value is based on the  present  value of  projected  net  servicing
revenue over the estimated life of the mortgage loans  serviced.  This estimated
life and the value of the  servicing  rights is very  sensitive  to  changes  in
interest rates and loan  prepayment  assumptions.  Rising interest rates tend to
decrease loan prepayments and increase the value of mortgage  servicing  rights,
while falling interest rates have the opposite effect. During the fourth quarter
of 1997,  mortgage  interest rates fell by  approximately  65 basis points.  The
resulting  increase in  prepayment  assumptions  required a $4.1 million  charge
against  earnings to increase the  valuation  allowance  for mortgage  servicing
rights.


<PAGE>10

     The extent to which this charge  represents  actual losses to BOK Financial
will be determined by the actual amount of mortgage loan prepayments compared to
the  prepayment  assumptions.  Additionally,  management  has  estimated  that a
further  decrease in mortgage  rates of 100 and 200 basis points would result in
charges to after-tax  income of $13.9 million and $22.5  million,  respectively.
The foregoing  estimates  are prepared as part of a sensitivity  analysis of the
impact  of  various   interest  rate  senarios  on  BOK  Financial's   financial
statements, and do not reflect the impact of such declines on the balance of BOK
Financial's assets and liabilities. The above estimate is further based upon the
assumption that rates would remain at the 100 or 200 basis point lower level for
the remaining life of the servicing asset.

     A summary of both direct and internally allocated revenue and expenses from
mortgage banking activities are (in thousands):

                                1997      1996     1995
                             --------- --------- --------

Servicing revenue             $31,675   $27,139   $22,754
Origination and secondary
    marketing revenue, net      3,583     1,773       767
Other revenue                   1,956     1,726     1,511
- ---------------------------- --------- --------- --------
Total revenue                  37,214    30,638    25,032
- ---------------------------- --------- --------- --------
Personnel expense               4,867     4,416     4,148
Amortization of mortgage
  servicing rights             12,805     9,987     8,128
Provision for impairment
  of mortgage servicing         4,100       361       539
  rights
Other expense                  15,491    13,357    11,184
- ---------------------------- --------- --------- --------
Total expense                  37,263    28,121    23,999
- ---------------------------- --------- --------- --------
Operating profit (loss)      $    (49) $  2,517  $  1,033                      
=========================================================

YEAR 2000 CONSIDERATIONS

     The Year 2000 issue, in general,  is the result of computer  programs being
written using two digits  rather than four to define the  applicable  year.  Any
computer  programs that have date sensitive  software may recognize a date using
"00" as the year 1900 rather than the year 2000.  This could  result in a system
failure or miscalculations causing disruptions of operations,  including,  among
other  things,  a temporary  inability to process  transactions  or to engage in
similar normal business activities.
     BOK Financial has determined  that both it and its outsourced  providers of
data  processing  services  will be  required  to modify or replace  significant
portions  of their  respective  software  so that their  computer  systems  will
function  properly  with respect to dates in the year 2000 and  thereafter.  BOK
Financial  presently  believes that with  modifications to existing software and
conversions  to new  software,  the Year 2000  issue  will not pose  significant
operational  problems for its computer systems.  However,  if such modifications
and conversions are not made, or are not completed  timely,  the Year 2000 issue
could have a material impact on the operations of BOK Financial.
     BOK  Financial  has  developed a Year 2000 Project Plan ("Plan") to address
this  issue.   Inventories  of  internally  developed  and  outsourced  computer
applications,  hardware,  vendors and environmental  systems have been completed
and 54 mission-critical applications were identified based upon their importance
to BOK  Financial's  operations.  A  project  team  has  been  established  with
representatives   from  all  significant   business  units,  subject  to  senior
management  oversight.  This team is responsible for  coordinating the status of
Year  2000  compliance  internally  and with  outside  vendors,  developing  and
executing  test  plans,  and  establishing  contingency  plans in the event that
unidentified  problems occur.  This Plan has set a goal of December 31, 1998 for
BOK Financial to be Year 2000 compliant.  BOK Financial,  with the assistance of
outside  consultants,  continues  to review the Plan,  including  its  staffing,
methodology, documentation standards, timelines and other resources.
     During 1997, BOK Financial  invested  approximately $5.2 million to upgrade
its computer  systems.  While many of these  upgrades,  such as a new commercial
loan servicing system and a new wire transfer system,  would have been completed
in the normal course of business for competitive  reasons,  compliance with Year
2000 issues was a key element in each project.  An  additional  $10.4 million in
computer systems  upgrades are planned for 1998, a significant  portion of which
is Year 2000 related.  These  projects are in addition to upgrades for Year 2000
compliance   planned  by  outside  processors  which  provide  services  to  BOK
Financial.
     BOK Financial has  established a system to rate the effect Year 2000 issues
may have on credit risk of its  borrowers.  This system is based on the level of
technology  dependence  common  in  the  borrower's  industry,   the  borrower's
individual  Year  2000  plan  status  and  the  committed  loan  amounts.   This
information  will be included in loan renewal  analysis and in the evaluation of
the  adequacy  of  the  allowance  for  loan  losses.  Numerous  assumptions  by
management  will be required to include the effect of the Year 2000 issue in the
evaluation of the adequacy of the loan loss  reserve.  There can be no guarantee
that  all  possible   outcomes   will  be   considered  or  that  a  significant
unanticipated loss will not occur.
     The costs of the  project and the date on which BOK  Financial  believes it
will be Year 2000 compliant are based upon  management's  best estimates,  which
were derived  utilizing  numerous  assumptions of future  events,  including the
continued availability of certain resources, third party modification plans, and
other factors.  However,  there can be no guarantee that these estimates will be
achieved and actual  results  could differ  materially  from those  anticipated.
Additionally,  BOK  Financial's  operations  are affected by the  performance of
third parties over which it has no control such as the Federal  Reserve  System,
automated  clearinghouse and national securities settlement systems.  Failure of
these systems to appropriately address the Year 2000 issue could have a material
effect on BOK Financial's operations.

<PAGE>11

OTHER OPERATING EXPENSE

     Other operating  expense totaled $195.2 million for 1997 compared to $159.0
million in 1996, an increase of 22.7%.  Notable large or non-recurring  expenses
affected  1997,  including  acquisitions  which added $12.7 million in operating
expenses (primarily  personnel costs of $5.3 million and amortization expense of
$3.9 million),  a provision of $4.1 million for impairment of mortgage servicing
rights  due to falling  interest  rates,  business  promotion  expenses  for the
contribution  of stock with a cost of $3.6 million  (market value at the time of
donation was $7.0 million) to the BOk Charitable Foundation,  equipment expenses
of $1.0 million in  conjunction  with the  development  of a new retail  banking
computer  system,   and  professional  fees  of  $660  thousand  for  consulting
assistance  on  recommendations  for revenue  enhancement  and  expense  control
opportunities.  Excluding  these  items  from 1997 and  excluding  non-recurring
charges  related to the Savings and Loan Insurance Fund ("SAIF") of $7.6 million
from 1996,  "core"  operating  expenses,  excluding OREO gains,  increased $21.0
million or 13.5%.
     Personnel costs, excluding  acquisitions,  increased $10.5 million or 14.6%
compared to 1996.  Regular  compensation,  including  overtime,  increased  $6.7
million or 13.3%.  Staffing on a full time equivalent ("FTE") basis increased by
101  employees or 4.8% while average  compensation  expense per FTE increased by
9.3%.  These changes reflect the addition of several  senior-level  positions in
both the lending and operations  areas as well as additional  support staff. The
transition  toward  performance  based   compensation   continued  during  1997.
Incentive  compensation  increased by $2.2 million or 35.7% compared to 1996 due
to growth in revenue over pre-determined targets.
     Net occupancy,  equipment and data processing  expense for 1997,  excluding
acquisitions  and the retail  banking  computer  systems  costs,  increased $2.8
million or 9.2%  compared  to 1996.  This  included a $1.1  million  decrease in
equipment  costs due to lower  maintenance  costs.  Additionally,  net occupancy
expense  decreased  $856  thousand due  primarily to a $2.0 million  increase in
rental income at BOK Financial's  main offices in Oklahoma City. Data processing
expenses  increased $3.8 million or 31.4% due to a higher volume of transactions
processed. A significant portion of BOK Financial's data processing is performed
by service bureaus under  agreements  which provide for charges per transaction.
Therefore,   these  costs  will  vary  in  direct  relation  to  the  number  of
transactions.
     Mortgage  banking costs  increased  $8.2 million or 52.0% compared to 1996.
Excluding  provisions  for the  impairment  of  capitalized  mortgage  servicing
rights,  mortgage banking costs increased $4.5 million or 29.1% due primarily to
a $3.2 million  increase in the amortization of capitalized  mortgage  servicing
rights.  This  increase  is  consistent  with  the  growth  in  the  balance  of
capitalized servicing rights. Additionally,  expenses related to the origination
and servicing of government  guaranteed  loans  increased  $1.3 million due to a
larger volume of transactions.

<TABLE>
Table 5    Other Operating Expense
            (In Thousands)                                                          BOK Financial
                                                           -----------------------------------------------------------------
                                                              1997         1996          1995         1994         1993
                                                           ------------ ------------ ------------- ------------ ------------
  <S>                                                         <C>          <C>          <C>           <C>          <C>      
  Personnel expense                                         $  87,728    $  71,945    $  67,298     $  63,111    $  60,891
  Business promotion                                            8,657        6,372        6,039         6,213        5,535
  Contribution of stock to BOk Charitable Foundation            3,638            -            -             -            -
  Professional fees and services                                6,769        5,406        5,898         4,664        5,385
  Net occupancy, equipment and data processing expense         35,614       30,831       27,324        23,619       25,161
  FDIC and other insurance                                      1,293        1,740        4,406         6,386        6,171
  Special deposit insurance assessment                              -        3,820            -             -            -
  Printing, postage and supplies                                7,783        6,792        6,340         5,415        4,876
  Net gains and operating expenses on repossessed assets       (3,849)      (4,552)      (3,098)       (4,575)      (2,792)
  Amortization of intangible assets                             8,824        5,411        5,992         5,597        4,133
  Write-off of core deposit intangible assets related to
   SAIF-insured deposits                                            -        3,821            -             -            -
  Mortgage banking costs                                       19,968       15,473       11,990        10,764        7,590
  Provision for impairment of mortgage servicing rights         4,100          361          539             -            -
  Other expense                                                14,641       11,608        9,478        12,281        8,911
  -------------------------------------------------------- ------------ ------------ ------------- ------------ ------------
       Total                                                 $195,166     $159,028     $142,206      $133,475     $125,861
  ==========================================================================================================================
</TABLE>

     Other  operating  expenses  for the fourth  quarter of 1997  totaled  $61.3
million  compared  to $38.3  million for the fourth  quarter of 1996.  Excluding
acquisitions and the previously  discussed large or non-recurring  transactions,
core  operating  expenses  for the fourth  quarter  of 1997 were  $49.6  million
compared  to $39.0  million  for the fourth  quarter  of 1996.  In  addition  to
increases in personnel  expense,  net occupancy,  equipment and data  processing
expenses, and mortgage banking costs, the fourth quarter of 1997 included a $539
thousand  increase in depreciation  expense on equipment used in BOK Financial's
leasing programs and a $413 thousand increase in expenses to relocate personnel.
Both of these are included in other expenses. 
     The efficiency ratio, the ratio of other operating expenses,  excluding net
gains on real estate sales and the previously  discussed large or  non-recurring
transactions,  to  tax-equivalent  net  interest  revenue  and  other  operating
revenue,  excluding securities gains and losses, remained unchanged from 1996 at
64.0%.

<PAGE>12

     Operating  expenses  for 1996  totaled  $159.0  million  compared to $142.2
million for 1995. Excluding  non-recurring charges of $7.6 million to record the
write-off of  intangible  assets  related to deposits  insured by the SAIF and a
special  deposit  insurance  assessment  to  recapitalize  the  SAIF,  operating
expenses for 1996  increased 6.5% compared to 1995.  This included  increases in
personnel  expenses of $4.6 million or 6.9%; net  occupancy,  equipment and data
process  expenses of $3.5 million or 12.8%;  and mortgage  banking costs of $3.3
million or 26.4%.  These increases  reflected growth in staffing and other costs
incurred in support of increased  volume of transactions  processed and services
offered.

INCOME TAXES

     Income tax expense was $16.5  million,  $15.3 million and $14.8 million for
1997, 1996 and 1995, respectively,  representing 20%, 22% and 23%, respectively,
of book taxable income.  Tax expense  currently payable totaled $20.0 million in
1997  compared to $19.0  million in 1996 and $17.0  million in 1995.  During the
fourth quarter of 1997, the Internal  Revenue  Service closed its examination of
BOk and BOK  Financial  for  1992 and  1993,  respectively.  As a result  of the
outcome of these examinations, BOK Financial reversed a $9.0 million tax reserve
that was no longer needed.  Income tax expense for 1998 is expected to be 34% of
pre-tax book income  compared to income tax expense for 1997,  excluding the tax
reserve realized, of 31% of pre-tax book income.
     BOK Financial is currently  under an audit by the Internal  Revenue Service
for 1994.  The  ultimate  outcome of this audit  cannot be  determined  with any
certainty at this time.  However,  management expects no material adverse impact
on the financial statements.
     During 1996, the limitation on the use of certain  built-in  losses and net
operating loss  carryforwards  which resulted from the acquisition of BOk by BOK
Financial in 1991  expired.  As a result,  valuation  allowances  totaling  $6.2
million related to these items were eliminated.  Income tax expense for 1996 was
31% of pre-tax book income excluding the elimination of these allowances.

<TABLE>
Table 6    Selected Quarterly Financial Data
            (In Thousands Except Per Share Data)          Fourth      Third     Second      First
                                                         ---------- ---------- ---------- ----------
                                                                            1997
                                                         -------------------------------------------

<S>                                                       <C>        <C>        <C>        <C>    
  Interest revenue                                        $90,419    $88,548    $86,771    $78,810
  Interest expense                                         48,707     48,890     47,603     43,748
  ------------------------------------------------------ ---------- ---------- ---------- ----------
  Net interest revenue                                     41,712     39,658     39,168     35,062
  Provision for loan losses                                 3,500      3,000      1,500      1,026
  ------------------------------------------------------ ---------- ---------- ---------- ----------
  Net interest revenue after provision for loan losses     38,212     36,658     37,668     34,036
  Other operating revenue                                  35,721     33,506     31,611     30,190
  Securities gains (losses), net                           (2,200)       809       (200)       262
  Other operating expense                                  61,277     46,720     45,443     41,726
  ------------------------------------------------------ ---------- ---------- ---------- ----------
  Income before taxes                                      10,456     24,253     23,636     22,762
  Income tax expense (benefit)                             (6,362)     7,857      7,572      7,415
  ------------------------------------------------------ ---------- ---------- ---------- ----------
  Net income                                              $16,818    $16,396    $16,064    $15,347
  ==================================================================================================
  Earnings per share:
     Basic                                                $   .75    $   .73    $   .72    $   .69
  ------------------------------------------------------ ---------- ---------- ---------- ----------
     Diluted                                                  .67        .65        .64        .62
  ------------------------------------------------------ ---------- ---------- ---------- ----------
  Average shares:
     Basic                                                 21,901     21,880     21,849     21,840
  ------------------------------------------------------ ---------- ---------- ---------- ----------
     Diluted                                               25,120     25,073     24,998     24,949
  ------------------------------------------------------ ---------- ---------- ---------- ----------
</TABLE>

<TABLE>

                                                                            1996
                                                         -------------------------------------------

<S>                                                       <C>        <C>        <C>        <C>    
  Interest revenue                                        $74,806    $72,890    $72,220    $70,616
  Interest expense                                         42,562     40,944     39,773     39,814
  ------------------------------------------------------ ---------- ---------- ---------- ----------
  Net interest revenue                                     32,244     31,946     32,447     30,802
  Provision for loan losses                                   357         62      2,937        911
  ------------------------------------------------------ ---------- ---------- ---------- ----------
  Net interest revenue after provision for loan losses     31,887     31,884     29,510     29,891
  Other operating revenue                                  28,156     27,228     25,933     26,602
  Securities gains (losses), net                             (622)         -     (1,967)       (18)
  Other operating expense                                  38,315     40,297     42,774     37,642
  ------------------------------------------------------ ---------- ---------- ---------- ----------
  Income before taxes                                      21,106     18,815     10,702     18,833
  Income tax expense (benefit)                              6,540      5,840     (2,889)     5,838
  ------------------------------------------------------ ---------- ---------- ---------- ----------
  Net income                                              $14,566    $12,975    $13,591    $12,995
  ==================================================================================================
  Earnings per share:
     Basic                                               $    .65   $    .58   $    .61   $    .58
  ------------------------------------------------------ ---------- ---------- ---------- ----------
     Diluted                                                  .59        .52        .55        .53
  ------------------------------------------------------ ---------- ---------- ---------- ----------
  Average shares:
     Basic                                                 21,823     21,810     21,805     21,799
  ------------------------------------------------------ ---------- ---------- ---------- ----------
     Diluted                                               24,875     24,774     24,753     24,740
  ------------------------------------------------------ ---------- ---------- ---------- ----------
</TABLE>

<PAGE>13

ASSESSMENT OF FINANCIAL CONDITION

SECURITIES PORTFOLIO

     Securities are identified as either  investment or available for sale based
upon various factors, including asset/liability management strategies, liquidity
and profitability objectives, and regulatory requirements. Investment securities
are carried at cost,  adjusted  for  amortization  of premiums or  accretion  of
discounts.   Amortization   or  accretion  of   mortgage-backed   securities  is
periodically adjusted for estimated  prepayments.  Available for sale securities
are  those  which  may be sold  prior to  maturity  based  upon  asset/liability
management decisions. Securities identified as available for sale are carried at
fair value.  Unrealized  gains or losses less  applicable  deferred  taxes,  are
recorded in Shareholders' Equity.
     During 1997,  BOK  Financial  increased  its  securities  portfolio by $290
million based on amortized cost, including $153 million from acquisitions.  U.S.
Treasury securities and mortgage-backed  securities increased by $77 million and
$209 million, respectively, while municipal securities decreased by $23 million.
     Table 7 presents  the  amortized  cost and fair  values of BOK  Financial's
securities portfolio at December 31, 1997, 1996 and 1995. Additional information
regarding the  securities  portfolio is presented in Note 4 to the  Consolidated
Financial Statements.


<TABLE>
Table 7    Securities
           (In Thousands)                                                     December 31,
                                                         1997                      1996                      1995
                                               ------------------------- ------------------------- -------------------------
                                                Amortized      Fair       Amortized      Fair       Amortized      Fair
                                                  Cost         Value        Cost         Value        Cost         Value
                                               ------------ ------------ ------------ ------------ ------------ ------------
  Investment:
<S>                                            <C>          <C>          <C>          <C>          <C>          <C>       
   U.S. Treasury                               $       850  $       845  $    1,000   $      992   $      716   $      721
   Municipal and other tax-exempt                  164,379      164,873     134,150      134,705       95,907       97,628
   Mortgage-backed U.S. agency securities           46,849       47,374      62,282       62,876       78,832       79,777
   Other debt securities                             1,033        1,033         976          976        3,666        3,660
  -------------------------------------------- ------------ ------------ ------------ ------------ ------------ ------------
      Total                                    $   213,111  $   214,125  $  198,408   $  199,549   $  179,121   $  181,786
  ==========================================================================================================================
  Available-for-sale:
     U.S. Treasury                             $   277,618  $   278,402  $  200,505   $  201,091   $  221,201   $  222,478
     Municipal and other tax-exempt                107,196      108,720     160,813      161,358      165,709      166,855
     Mortgage-backed securities:
       U.S. agencies                             1,210,322    1,215,867     985,219      979,117      941,020      934,433
       Other                                         2,183        2,185       3,288        3,961        8,154        8,011
  -------------------------------------------- ------------ ------------ ------------ ------------ ------------ ------------
         Total mortgage-backed securities        1,212,505    1,218,052     988,507      983,078      949,174      942,444
  -------------------------------------------- ------------ ------------ ------------ ------------ ------------ ------------
     Other debt securities                           4,480        4,498         178          178          250           98
     Equity securities and mutual funds            130,196      139,739     106,655      113,417       34,145       34,786
  -------------------------------------------- ------------ ------------ ------------ ------------ ------------ ------------
       Total                                    $1,731,995   $1,749,411  $1,456,658   $1,459,122   $1,370,479   $1,366,661
  ==========================================================================================================================
</TABLE>

LOANS

     Loans  increased $371 million or 15.5% during 1997,  including $138 million
from the  acquisitions  of First  National  Bank of Park  Cities and First Texas
Bank.  Excluding  period end loans of $152 million at BOT, loans  increased $219
million or 9.1%.  This  increase  was the result of  continued  strength  in the
Oklahoma economy and of BOK Financial's efforts to capitalize on the disruptions
in banking  relationships caused by high-profile bank mergers.  Commercial loans
increased by $207 million or 16.7%, excluding acquisitions,  over 1996 year end.
This continues a trend of strong growth in commercial loans,  which increased by
$155 million in 1996.  Commercial  loans comprise 54% of total loans compared to
52% in 1996.  This  included  energy  loans of $333 million or 12.0% of the loan
portfolio.
     The majority of commercial and consumer loans, and approximately 74% of the
residential mortgage loans (excluding loans held for sale) are to businesses and
individuals   in  Oklahoma.   BOK  Financial   has  achieved   some   geographic
diversification  through  acquisitions which added loans totaling $62 million in
Northwest Arkansas and $152 million in Dallas, Texas.  Expansion into New Mexico
also has added loans  totaling $10 million.  However,  geographic  concentration
subjects the portfolio to the general economic  conditions in Oklahoma.  Notable
loan  concentrations  by the primary  industry of the borrowers are presented in
Table 8. Agriculture includes loans totaling $137 million to the cattle industry
and  services  includes  loans  totaling  $111  million  to the hotel  industry.
Commercial real estate loans are secured primarily by properties in the Tulsa or
Oklahoma  City  metropolitan  areas.  The major  components of other real estate
loans are office buildings, $95 million, and retail facilities, $91 million.

<PAGE>14

<TABLE>
 Table 8 Loans
         (In Thousands)
                                                                          December 31,
                                                ------------------------------------------------------------------
                                                    1997         1996         1995         1994          1993
                                                ------------- ------------ ------------ ------------ -------------
<S>                                             <C>          <C>          <C>          <C>          <C>        
Commercial:
   Energy                                       $  332,770   $   289,011  $   219,909  $   213,301  $   214,670
   Manufacturing                                   201,918       144,228      142,650      113,140      107,323
   Wholesale/retail                                242,156       231,215      201,212      146,152      123,814
   Agriculture                                     151,525       125,097      103,165       89,791       73,729
   Services                                        465,317       324,737      276,500      211,713      185,788
   Other commercial and industrial                 105,714       127,089      143,143      129,196      117,245
Commercial real estate:
   Construction and land development               102,800        67,826       50,389       39,398       42,347
   Multifamily                                     100,422       147,814      141,494      106,197       51,265
   Other real estate loans                         274,579       212,386      190,530      179,084      179,217
Residential mortgage:
   Secured by 1-4 family residential properties    419,139       388,820      395,941      343,969      227,799
   Residential mortgages held for sale              78,669        95,332       72,412       40,909      189,786
Consumer                                           290,084       241,025      257,023      231,203      165,572
- ----------------------------------------------- ------------- ------------ ------------ ------------ -------------
     Total                                      $2,765,093    $2,394,580   $2,194,368   $1,844,053   $1,678,555
==================================================================================================================
</TABLE>

     BOK Financial  monitors loan performance on a portfolio and individual loan
basis.  Nonperforming  loans are reviewed at least  quarterly  and are discussed
subsequently under the caption  "Nonperforming  Assets". The loan review process
involves evaluating the credit worthiness of customers and their ability,  based
upon current and anticipated economic  conditions,  to meet future principal and
interest  payments.  Loans may be identified  which 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  performing  in
accordance  with  the  original  terms  of the  loan  agreements  and no loss of
principal  or  interest  is  anticipated,  such  loans are not  included  in the
Nonperforming Assets totals. These loans are assigned to various risk categories
in order to focus management's  attention on the loans with higher risk of loss.
At  December  31,  1997,  loans  totaling  $57  million  were  assigned  to  the
substandard  risk  category and loans  totaling $68 million were assigned to the
special  mention  risk  category,  compared  to $40  million  and  $62  million,
respectively, at December 31, 1996.
     During 1997, BOK Financial made, on a limited and  strategically  selective
basis,  certain new loans which were classified as special mention at inception.
These loans were to borrowers whose banking  relationships  were being displaced
by merger activity in BOK Financial's primary markets.  Generally,  the criteria
for such loans  included a  long-term,  stable  operating  history  with  credit
deficiencies  which are expected to be temporary.  Management expects to build a
long-term  banking  relationship  with these  customers by meeting  their credit
needs at this time. A total of $32.4 million was  committed  under this program.
Subsequently,  $20.6 million was upgraded to pass due to improved performance by
the borrowers, $11.1 million remain assigned to the special mention category and
$700 thousand was paid.

<TABLE>
 Table 9 Loan Maturity and Interest Rate
         Sensitivity on December 31, 1997
         (In Thousands)
                                                   Remaining Maturities of Selected Loans
                                                    --------------------------------------
                                          Total     Within 1 Year  1-5 Years   After 5 Years
                                        ----------- -------------- ----------- --------------
<S>                                     <C>           <C>           <C>          <C>   
Loan maturity:  
   Commercial                           $1,499,400    $663,864      $652,241     $183,295
   Commercial real estate                  477,801     156,114       249,337       72,350
- --------------------------------------- ----------- ------------- ------------ -----------
     Total                              $1,977,201    $819,978      $901,578     $255,645
==========================================================================================
Interest rate sensitivity for selected loans with:
  Predetermined interest rates          $  362,163   $  85,800      $212,443    $  63,920      
  Floating or adjustable interest rates  1,615,038     734,178       689,135      191,725
- --------------------------------------- ----------- ------------- ------------ -----------
       Total                            $1,977,201    $819,978      $901,578     $255,645
==========================================================================================
</TABLE>

SUMMARY OF LOAN LOSS EXPERIENCE

     The reserve for loans losses,  which is available to absorb losses inherent
in the loan portfolio, totaled $53 million at December 31, 1997, compared to $45
million at December 31, 1996.  This  represents  1.98% and 1.96% of total loans,
excluding  loans held for sale,  at December  31,  1997 and 1996,  respectively.
Losses on loans  held for  sale,  principally  mortgage  loans  accumulated  for
placement in securitized  pools, are charged to earnings through  adjustments in
carrying  value  to the  lower  of cost  or  market  value  in  accordance  with
accounting  standards   applicable  to  mortgage  banking.   Table  10  presents
statistical  information regarding the reserve for loan losses for the past five
years.

<PAGE>15

<TABLE>
Table 10   Summary of Loan Loss Experience
           (Dollars In Thousands)
                                                                                   BOK Financial
                                                         -------------------------------------------------------------------
                                                             1997         1996          1995         1994         1993
                                                         -------------------------------------------------------------------
<S>                                                         <C>          <C>          <C>           <C>          <C>    
Beginning balance                                           $45,148      $38,287      $38,271       $37,261      $35,100
   Loans charged-off:
     Commercial                                               3,343        2,318          753         1,112        4,089
     Commercial real estate                                     698          523          171           227        1,195
     Residential mortgage                                       409          237          190           553          548
     Consumer                                                 4,753        3,432        2,874         1,345          690
- ----------------------------------------------------------------------------------------------------------------------------
       Total                                                  9,203        6,510        3,988         3,237        6,522
- ----------------------------------------------------------------------------------------------------------------------------
   Recoveries of loans previously charged-off:
     Commercial                                               2,530        3,747        1,579         1,366        2,204
     Commercial real estate                                     957        4,113          987           972          828
     Residential mortgage                                       555          262          373           157          151
     Consumer                                                 1,563          982          834           602          482
- ----------------------------------------------------------------------------------------------------------------------------
       Total                                                  5,605        9,104        3,773         3,097        3,665
- ----------------------------------------------------------------------------------------------------------------------------
   Net loans charged-off                                      3,598       (2,594)         215           140        2,857
   Provision for loan losses                                  9,026        4,267          231           195        3,376
   Additions due to acquisitions                              2,525            -            -           955        1,642
- ----------------------------------------------------------------------------------------------------------------------------
Ending balance                                              $53,101      $45,148      $38,287       $38,271      $37,261
============================================================================================================================
Reserve to loans outstanding at year-end(1)                    1.98%        1.96%        1.80%         2.12%        2.50%
Net loan losses to average loans                                .14         (.12)         .01           .01          .18
Provision for loan losses to average loans                      .35          .19          .01           .01          .22
Recoveries to gross charge-offs                               60.90%      139.85%       94.61%        95.68%       56.19%
Reserve as a multiple of net charge-offs                      14.76x      (17.40)x     178.08x       273.36x       13.04x
- ----------------------------------------------------------------------------------------------------------------------------
Problem Loans
- ----------------------------------------------------------------------------------------------------------------------------
Loans past due (90 days)                                    $17,971      $18,816     $  9,379      $  7,667     $  5,482
Nonaccrual                                                   18,767       18,835       29,288        20,114        9,124
Renegotiated                                                    207            -            -             -        1,323
- ----------------------------------------------------------------------------------------------------------------------------
       Total                                                $36,945      $37,651      $38,667       $27,781      $15,929
- ----------------------------------------------------------------------------------------------------------------------------
Foregone interest on nonaccrual loans                       $ 2,882      $ 2,975      $ 2,928       $ 1,392      $ 1,238
- ----------------------------------------------------------------------------------------------------------------------------
<FN>
(1) Excludes  residential mortgage loans held for sale which are carried at
the lower of aggregate cost or market value.
</FN>
</TABLE>

     The adequacy of the reserve for loan losses is assessed by management based
upon an evaluation  of the current risk  characteristics  of the loan  portfolio
including  current  economic  conditions,   historical  experience,   collateral
valuation,  changes  in the  composition  of the  portfolio  and other  relevant
factors.  A  provision  for loan losses is charged  against  earnings in amounts
necessary  to  maintain  the  adequacy of the  reserve  for loan  losses.  These
provisions totaled $9.0 million for 1997, $4.3 million for 1996 and $0.2 million
for 1995. The increased provision for 1997 reflected management's  assessment of
increased  risk of loan losses,  due  primarily to continued  growth in the loan
portfolio  and in criticized  assets,  geographic  expansion of BOK  Financial's
market  area to include  North  Texas and New Mexico,  and an  expectation  that
economic  activities  will  moderate in BOK  Financial's  primary  market areas.
Additionally,  net loan  charge-offs were $3.6 million 1997 compared to net loan
recoveries of $2.6 million in 1996 and net loan charge-offs of $215 thousand and
$140 thousand in 1995 and 1994, respectively.
     Table 11 presents management's  allocation of the year-end reserve for loan
losses for the past five years. The changes in the various  allocations  reflect
the  changing  composition  of the  loan  portfolio  and the  changing  economic
environment in BOK Financial's market area. In addition to reserves allocated to
specific  loans or  categories  of  loans,  reserves  are  maintained  for other
relevant  factors such as national and local economic  conditions and the nature
and volume of the loan portfolio.


<TABLE>
Table 11    Loan Loss Reserve Allocation
            (Dollars in Thousands)
                                                                     December 31,
                                 1997                1996                1995                 1994                1993
                          ------------------- ------------------- -------------------- ------------------- -------------------
                                       % of                % of                % of                % of                % of
                           Reserve   Loans(1)   Reserve  Loans(1)   Reserve  Loans(1)   Reserve  Loans(1)   Reserve   Loans(1)
                          ---------- -------- ---------- -------- ---------- --------- ---------- -------- --------- ---------
<S>                        <C>         <C>     <C>         <C>     <C>         <C>      <C>         <C>     <C>        <C>  
  Loan category:
     Commercial            $28,281     55.81   $25,191     53.99   $25,646     51.21    $23,633     50.09   $20,344    55.25
     Commercial real estate  3,233     17.79     3,907     18.62     3,774     18.02      2,524     18.01     2,755    18.33
     Residential mortgage    1,778     15.60     1,651     16.91       638     18.66        556     19.08       620    15.30
     Consumer                5,728     10.80     5,174     10.48     2,556     12.11      3,436     12.82     1,795    11.12
     Nonspecific allocation 14,081        -      9,225        -      5,673        -       8,122        -     11,747       -
  ----------------------- ---------- -------- ---------- -------- ---------- --------- ---------- -------- --------- ---------
     Total                 $53,101   100.00    $45,148    100.00   $38,287   100.00     $38,271    100.00   $37,261   100.00
  ============================================================================================================================
<FN>
(1)  Excludes residential mortgage loans held for sale which are carried at the lower of aggregate cost or market value.
</FN>
</TABLE>


<PAGE>16

NONPERFORMING ASSETS

     Information  regarding  nonperforming  assets,  which  were $42  million at
December  31,  1997 and 1996,  is  presented  in Table 12.  Nonperforming  loans
include nonaccrual loans, loans 90 days or more past due and renegotiated loans.
Loans 90 days or more past due included  $14.5 million of  residential  mortgage
loans guaranteed by agencies of the U.S. Government.  These loans were purchased
from  various  investors  to  minimize  operating  costs.  See  Note  5  to  the
Consolidated Financial Statements for additional information.

<TABLE>
 Table 12  Nonperforming Assets
           (Dollars in Thousands)                                           December 31,
                                                  ------------------------------------------------------------------
                                                      1997         1996         1995         1994          1993
                                                  ------------- ------------ ------------ ------------ -------------
<S>                                                  <C>           <C>          <C>          <C>         <C>     
 Nonperforming loans
   Nonaccrual loans:
    Commercial                                      $12,717       $13,494      $14,646      $11,238     $  2,383
     Commercial real estate                            2,960         2,313       10,621        5,273        4,854
     Residential mortgage                              2,441         2,495        2,794        2,916        1,788
     Consumer                                            649           533        1,227          687           99
- ------------------------------------------------- ------------- ------------ ------------ ------------ -------------
       Total nonaccrual loans                         18,767        18,835       29,288       20,114        9,124
   Loans past due (90 days) (1)                       17,971        18,816        9,379        7,667        5,482
   Renegotiated loans                                    207             -            -            -        1,323
- ------------------------------------------------- ------------- ------------ ------------ ------------ -------------
     Total nonperforming loans                        36,945        37,651       38,667       27,781       15,929
- ------------------------------------------------- ------------- ------------ ------------ ------------ -------------
Other nonperforming assets:
   Commercial real estate                              2,395         2,586        3,023        3,245        5,915
   Other                                               2,863         1,990          376          855        1,608
- ------------------------------------------------- ------------- ------------ ------------ ------------ -------------
     Total other nonperforming assets                  5,258         4,576        3,399        4,100        7,523
- ------------------------------------------------- ------------- ------------ ------------ ------------ -------------
   Total nonperforming assets                        $42,203       $42,227      $42,066      $31,881      $23,452
====================================================================================================================
Ratios:
   Reserve for loan losses to nonperforming loans     143.73%       119.91%       99.02%      137.76%      233.92%
   Nonperforming loans to period-end loans (2)          1.38          1.64         1.82         1.54         1.07
- ------------------------------------------------- ------------- ------------ ------------ ------------ -------------
<FN>
 1    Includes residential mortgages guaranteed by
      agencies of the U.S. Government.               $14,468       $13,932     $  6,754     $  6,549     $  3,546
 2    Excludes residential mortgage loans held for sale.
</FN>
</TABLE>

LEASING AND MEZZANINE FINANCING

     During 1997, BOK Financial  expanded its interests in leasing and mezzanine
financing through its subsidiary, BOK Capital Services Corporation. ("BCS"). BCS
engages in financing  activities  which generally have a higher return potential
but which have a higher risk of loss than those normally  permissible for banks.
Most  notably,  at December 31, 1997,  other assets  included  $23.4  million of
natural gas  compression  and other  equipment  which is being leased to various
customers  by  entities  in which BCS is a general  partner.  The terms of these
leases  are  generally  much  shorter  than the  estimated  useful  lives of the
equipment.  Therefore, as each lease expires, there is a risk that the remaining
net  book  value  of the  equipment  may  not be  recovered  based  upon  market
conditions and re-leasing opportunities at that time.

DEPOSITS

     Average  deposits  for  1997  increased  $345  million  compared  to  1996.
Excluding  acquisitions,  average deposits increased $55 million or 1.8%. Demand
deposits and interest-bearing  transaction accounts increased by $29 million and
$112  million,  respectively,  while  certificates  of deposit  decreased by $82
million.  These changes  reflect BOK Financial's  deposit  pricing  decisions to
lower its overall cost of funds.

Table 13     Deposit Analysis
             (In Thousands)
                                       Average Balances
                                   --------------------------
                                       1997         1996
                                   ------------- ------------
Core deposits                      $2,422,803    $2,287,298
Public funds                          330,757       273,312
Uninsured deposits                    718,315       565,170
- ---------------------------------- ------------- ------------
    Total                          $3,471,875    $3,125,780
=============================================================

<PAGE>17

     As shown in Table 13, average core deposits  increased $135 million to $2.4
billion.  This represented 69.8% of total deposits in 1997 compared to 73.2% for
1996. Concurrently,  uninsured deposits increased to 20.7% of total deposits for
1997  compared  to  18.1%  in  1996.   Average   uninsured   deposits   included
approximately $141 million of brokered  deposits.  Uninsured deposits as used in
this presentation is based on a simple analysis of account balances and does not
reflect  combined  ownership  and other  account  styling  that would  determine
insurance based on FDIC regulations.

     BOK  Financial  competes for deposits by offering a broad range of products
and services to its customers.  While this includes  offering interest rates and
fees which are competitive with other financial institutions,  the primary means
of competing for deposits is convenience  and service to the  customers.  During
1997,  BOk opened 7 branches  with  extended  hours in local  supermarkets.  BOK
Financial  plans to open 3 new  supermarket  branches in 1998 to further enhance
customer convenience.

Table 14   Maturity of Domestic CDs and Public Funds in 
           Amounts of $100,000 or More
           (In Thousands)              
                                           December 31,
                                    --------------------------
                                       1997          1996
                                    ------------ -------------
  Months to maturity:
   3 or less                          $119,011    $  66,872
   Over 3 through 6                    139,958      195,339
   Over 6 through 12                   272,554      140,777
   Over 12                             178,095      157,000
  --------------------------------- ------------ -------------
      Total                           $709,618     $559,988
  ============================================================

BORROWINGS

     BOk issued $150 million of 10-year subordinated notes, discounted to a cost
of 7.2% during the third quarter of 1997. These notes are unsecured  obligations
of BOk and are not  insured by the FDIC or any other  government  agency and are
not guaranteed by BOK Financial. Standard & Poors Rating Service rated the notes
as BBB; Moody's Investor  Service,  Baa3; and Thomson Bank Watch, A-. Concurrent
with the  issuance of these  notes,  $50 million  was paid as  dividends  to BOK
Financial to repay existing debt, including a $20 million subordinated debenture
due to an affiliate of George B. Kaiser, BOK Financial's principal  shareholder.
The remaining  proceeds were retained by BOk to fund future growth.  BOk entered
into  10-year  interest  rate swaps with a  notional  amount of $100  million to
change the cost of these notes from fixed rate to variable  rate. BOk receives a
fixed  weighted  average  rate of 6.77% on these  swaps  and pays the one  month
LIBOR.  

     Average  borrowings,  excluding  the  subordinated  notes,  increased  $294
million over 1996 and represented 21.4% of all funding sources, up from 18.5% in
1996.  See  Note 9 to  the  Consolidated  Financial  Statements  for  additional
information.

CAPITAL

     Equity capital for BOK Financial averaged $394 million and $322 million for
1997 and  1996,  respectively.  The $72  million  increase  resulted  from  1997
earnings and a $9 million  increase in  unrealized  gains on available  for sale
securities.   This  increase  in  equity  capital,   the  previously   discussed
subordinated  notes,  and available  lines of credit which total $28 million are
adequate to fund  anticipated  growth for 1998. See Note 15 to the  Consolidated
Financial Statements for additional information.
          
     On February 25, 1998,  BOK Financial  announced that its board of directors
approved a common stock repurchase program to purchase up to 200,000 shares. The
purchases  will be made from  time-to-time  in accordance  with SEC Rule 10(b)18
transactions.

MARKET RISK

     Market  risk is a broad term  related to 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
rates,  commodity  prices,  or equity prices.  Financial  instruments  which 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 its  portfolio of assets held for  purposes  other
than  trading.  Neither the effect of other  changes,  such as foreign  exchange
rates,  commodity  prices or equity  prices,  nor the  effect of market  risk on
financial  instruments held for trading purposes,  is material to BOK Financial.
The  responsibility  for  managing  market  risk rests with the  Asset/Liability
Committee which operates under policy  guidelines which have been established by
the Board of Directors. These guidelines limit the negative acceptable variation
in net interest  revenue and  economic  value of equity due to a 200 basis point
increase or decrease in interest rates to +/- 10%,  establish maximum levels for
short-term borrowings,  short-term assets, and public and brokered deposits, and
establish  minimum levels for unpledged assets,  among other things.  Compliance
with these guidelines is reviewed  monthly.  At December 31, 1997, BOK Financial
is within all guidelines established under these policies.
           
     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  assuming  expected  interest  rates over the next twelve months based upon
both a "most likely" rate scenario and on two "shock test" scenarios,  the first
assuming  a  sustained  parallel  200  basis  point  increase  and the  second a
sustained  parallel 200 basis point decrease in interest  rates.  An independent
source is used to

<PAGE>18

determine  the most likely  interest  rates for the next year.  BOK  Financial's
primary interest rate exposures include the Federal Reserve Bank's discount rate
which  affects  short-term  borrowings,  the prime  lending  rate and the London
InterBank  Offering  Rate  ("LIBOR")  which  are  the  basis  for  much  of  the
variable-rate  loan pricing and the 30-year mortgage rate which directly affects
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.  In addition,
sensitivity of fee income to market interest rate levels,  such as those related
to cash  management  services and mortgage  servicing,  are included.  The model
incorporates  management's  assumptions  regarding the level of interest rate or
balance  changes  on   indeterminable   maturity   deposits  (demand   deposits,
interest-bearing transaction accounts and savings accounts) for a given level of
market rate changes.  The assumptions have been developed  through a combination
of historical analysis and future expected pricing behavior. Interest rate swaps
on all  products  are  included  to the extent  that they are  effective  in the
12-month  simulation  period.  Additionally,  changes in prepayment  behavior of
mortgage-backed securities, residential mortgage loans and mortgage servicing in
each rate environment are captured using industry estimates of prepayment speeds
for various  coupon  segments of the portfolio.  Finally,  the impact of planned
growth and new business  activities is factored into the  simulation  model.  At
December 31, 1997, this modeling indicated interest rate sensitivity compared to
a constant interest rate scenario as follows:

                                 200 bp   200 bp      Most
                                Increase Decrease    Likely
                               --------- ---------- ----------
Anticipated impact over the next twelve months:
     Net interest revenue      $  2,801  $  (1,880) $    814
                                           
                                   1.5%      (1.0%)     0.4%
- ------------------------------ --------- ---------- ----------
     Net income                $  4,844  $(23,706)  $    492
                                    6.7%    (32.7%)      0.7%
- ------------------------------ --------- ---------- ----------
     Economic value of equity  $ 20,264  $  7,780   $ (2,719)
                                    3.0%      1.1%      (0.4%)
- ------------------------------ --------- ---------- ----------

     The estimated changes in interest rates on net interest revenue or economic
value of equity is not  projected  to be  significant  within  the +/- 200 basis
point range of assumptions.  However, this modeling indicated that under the 200
basis  point  decrease   scenario,   the  after-tax  value  of  BOK  Financial's
capitalized  mortgage loan  servicing  rights would  decrease by $22.5  million.
While this decrease in value would largely be offset by an increase in the value
of the securities  portfolio,  current  accounting  principles  require that the
decreased  value of mortgage loan servicing  rights be charged to earnings while
the  increased   value  of  available   for  sale   securities  be  credited  to
shareholders'  equity. The result is a projected decrease in net income of $23.7
million  or 32.7%  compared  to  projected  net  income  assuming  no changes in
interest rates.
     The  simulation  is based on numerous  assumptions  regarding the effect of
changes in interest rates on the timing and extent of repricing characteristics,
future  cash flows and  customer  behavior.  These  assumptions  are  inherently
uncertain  and, as a result,  the model cannot  precisely  estimate net interest
revenue,  net income or economic value of equity or precisely predict the impact
of  higher  or lower  interest  rates on net  interest  revenue,  net  income or
economic value of equity.  Actual results will differ from simulated results due
to timing,  magnitude  and  frequency  of interest  rate  changes and changes in
market conditions and management strategies, among other factors.
     BOK  Financial  uses  interest  rate  swaps,  a form of  off-balance  sheet
derivative  product,  in managing its interest rate sensitivity.  These products
are  generally  used to more closely match  interest  paid on certain  long-term
certificates of deposit and subordinated debt with earning assets. BOK Financial
accrues and  periodically  receives a fixed  amount from the  counterparties  to
these  swaps and  accrues  and  periodically  makes a  variable  payment  to the
counterparties.  During 1997,  income from these swaps  exceeded the cost of the
swaps by $1.2  million.  Credit risk from these swaps is closely  monitored  and
counterparties  to these  contracts  are  selected on the basis of their  credit
worthiness,   among  other  factors.   Derivative  products  are  not  used  for
speculative purposes.  See Note 14 to the Consolidated  Financial Statements for
additional information.


<PAGE>19

Report of Management on Financial Statements

     Management is responsible for the consolidated  financial  statements which
have been prepared in accordance with generally accepted accounting  principles.
In management's  opinion,  the consolidated  financial statements present fairly
the financial conditions,  results of operations and cash flows of BOK Financial
and its subsidiaries at the dates and for the periods indicated.

     BOK Financial and its subsidiaries maintain a system of internal accounting
controls designed to provide reasonable assurance that transactions are executed
in  accordance  with  management's  general or specific  authorization,  and are
recorded  as  necessary  to  maintain  accountability  for  assets and to permit
preparation  of financial  statements  in  accordance  with  generally  accepted
accounting principles.  This system includes written policies and procedures,  a
corporate  code of conduct,  an internal  audit  program and  standards  for the
hiring and training of qualified personnel.

     The Board of  Directors of BOK  Financial  maintains a Risk  Oversight  and
Audit  Committee  consisting of outside  directors that meet  periodically  with
management and BOK Financial's internal and independent auditors.  The Committee
considers  the audit and nonaudit  services to be  performed by the  independent
auditors,  makes  arrangements  for the  internal  and  independent  audits  and
recommends BOK Financial's selection of independent auditors. The Committee also
reviews  the results of the  internal  and  independent  audits,  considers  and
approves  certain of BOK Financial's  accounting  principles and practices,  and
reviews various shareholder reports and other reports and filings.

     Ernst & Young LLP, certified public accountants, have been engaged to audit
the  consolidated  financial  statements of BOK Financial and its  subsidiaries.
Their  audit  is  conducted  in  accordance  with  generally  accepted  auditing
standards and their report on BOK Financial's  consolidated financial statements
is set forth below.


REPORT OF INDEPENDENT AUDITORS

     We  have  audited  the  accompanying  consolidated  balance  sheets  of BOK
Financial  Corporation  as of  December  31,  1997  and  1996,  and the  related
consolidated  statements of earnings,  changes in shareholders' equity, and cash
flows for each of the three years in the period ended  December 31, 1997.  These
financial  statements are the  responsibility of the Company's  management.  Our
responsibility  is to express an opinion on these financial  statements based on
our audits.

     We conducted  our audits in accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

     In our opinion,  the consolidated  financial  statements  referred to above
present fairly, in all material respects, the consolidated financial position of
BOK Financial  Corporation at December 31, 1997 and 1996,  and the  consolidated
results of its  operations and its cash flows for each of the three years in the
period ended December 31, 1997, in conformity with generally accepted accounting
principles.


                                    /s/Ernst & Young LLP
                                    Tulsa, Oklahoma
                                    January 27, 1998



<PAGE>20


                                                  BOK FINANCIAL CORPORATION

<TABLE>
Consolidated Statements of Earnings
(In Thousands Except Share Data)
                                                                                1997              1996              1995
                                                                          ----------------- ----------------- -----------------
<S>                                                                            <C>               <C>               <C>     
Interest Revenue
Loans                                                                          $227,044          $196,309          $179,052
Taxable securities                                                               97,416            77,588            83,076
Tax-exempt securities                                                            16,809            14,665            12,075
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
    Total securities                                                            114,225            92,253            95,151
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
Trading securities                                                                  287               340               242
Funds sold and resell agreements                                                  2,992             1,630               996
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
    Total interest revenue                                                      344,548           290,532           275,441
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
Interest Expense
Deposits                                                                        122,042           118,066            97,739
Borrowed funds                                                                   62,740            45,027            62,086
Subordinated debenture                                                            4,166                 -               352
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
    Total interest expense                                                      188,948           163,093           160,177
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
Net Interest Revenue                                                            155,600           127,439           115,264
Provision for Loan Losses                                                         9,026             4,267               231
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
Net Interest Revenue After Provision for Loan Losses                            146,574           123,172           115,033
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
Other Operating Revenue
Brokerage and trading revenue                                                     9,556             7,896             6,046
Transaction card revenue                                                         19,339            14,298            11,045
Trust fees and commissions                                                       24,062            21,638            19,363
Service charges and fees on deposit accounts                                     28,651            24,104            21,152
Mortgage banking revenue                                                         32,235            26,234            20,336
Leasing revenue                                                                   5,861             2,236               586
Other revenue                                                                    10,013            10,769             9,512
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
    Total fees and commissions                                                  129,717           107,175            88,040
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
Gain on student loan sales                                                        1,311             1,069               762
Gain (loss) on branch sales                                                           -              (325)            1,170
Gain (loss) on securities                                                        (1,329)           (2,607)            1,174
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
    Total other operating revenue                                               129,699           105,312            91,146
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
Other Operating Expense
Personnel expense                                                                87,728            71,945            67,298
Business promotion                                                                8,657             6,372             6,039
Contribution of stock to BOk Charitable Foundation                                3,638                 -                 -
Professional fees and services                                                    6,769             5,406             5,898
Net occupancy, equipment and data processing expense                             35,614            30,831            27,324
FDIC and other insurance                                                          1,293             1,740             4,406
Special deposit insurance assessment                                                  -             3,820                 -
Printing, postage and supplies                                                    7,783             6,792             6,340
Net gains and operating expenses on repossessed assets                           (3,849)           (4,552)           (3,098)
Amortization on intangible assets                                                 8,824             5,411             5,992
Write-off of core deposit intangible assets related to SAIF-insured                   -             3,821                 -
deposits
Mortgage banking costs                                                           19,968            15,473            11,990
Provision for impairment of mortgage servicing rights                             4,100               361               539
Other expense                                                                    14,641            11,608             9,478
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
    Total other operating expense                                               195,166           159,028           142,206
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
Income Before Taxes                                                              81,107            69,456            63,973
Federal and state income tax                                                     16,482            15,329            14,768
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
Net Income                                                                    $  64,625         $  54,127         $  49,205
===============================================================================================================================
Earnings Per Share:
    Basic:
       Net income                                                           $      2.89       $      2.41       $      2.19
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
    Diluted:
       Net income                                                           $      2.58       $      2.18       $      1.99
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
Average Shares Used in Computation:
    Basic                                                                    21,860,260        21,808,828        21,787,884
    Diluted                                                                  25,022,018        24,792,653        24,742,885
- ------------------------------------------------------------------------- ----------------- ----------------- -----------------
See accompanying notes to consolidated financial statements.
</TABLE>

<PAGE>21
<TABLE>
Consolidated Balance Sheets
(In Thousands Except Share Data)

                                                                                           December 31,
                                                                                  -------------------------------
                                                                                       1997            1996
                                                                                  ---------------- --------------
<S>                                                                                <C>              <C>        
Assets
 Cash and due from banks                                                           $   371,321      $   322,791
 Funds sold and resell agreements                                                       18,005           44,760
 Trading securities                                                                      4,999            6,454
 Securities:
     Available for sale                                                              1,749,411        1,459,122
     Investment (fair value: 1997 - $214,125; 1996 - $199,549)                         213,111          198,408
 -------------------------------------------------------------------------------- ---------------- --------------
     Total securities                                                                1,962,522        1,657,530
 -------------------------------------------------------------------------------- ---------------- --------------
 Loans                                                                               2,765,093        2,394,580
 Less reserve for loan losses                                                           53,101           45,148
 -------------------------------------------------------------------------------- ---------------- --------------
      Net loans                                                                      2,711,992        2,349,432
 -------------------------------------------------------------------------------- ---------------- --------------
 Premises and equipment, net                                                            65,478           47,479
 Accrued revenue receivable                                                             50,754           46,020
 Excess cost over fair value of net assets acquired and core deposit premiums
      (net of accumulated amortization: 1997 - $39,582;1996 - $30,758)                  67,796           28,276
 Mortgage servicing rights, net                                                         83,890           61,544
 Real estate and other repossessed assets                                                5,258            4,576
 Other assets                                                                           57,627           51,838
 -------------------------------------------------------------------------------- ---------------- --------------
      Total assets                                                                  $5,399,642       $4,620,700
 ================================================================================================================
 Liabilities and Shareholders' Equity
 Noninterest-bearing demand deposits                                                $  881,029       $  696,853
 Interest-bearing deposits:
      Transaction                                                                    1,124,288          954,546
      Savings                                                                          106,900           97,019
      Time                                                                           1,615,862        1,508,337
 -------------------------------------------------------------------------------- ---------------- --------------
      Total deposits                                                                 3,728,079        3,256,755
 -------------------------------------------------------------------------------- ---------------- --------------
 Funds purchased and repurchase agreements                                             631,815          669,176
 Other borrowings                                                                      394,087          277,128
 Subordinated debenture                                                                148,356                -
 Accrued interest, taxes and expense                                                    39,998           46,047
 Other liabilities                                                                      21,830           11,628
 -------------------------------------------------------------------------------- ---------------- --------------
      Total liabilities                                                              4,964,165        4,260,734
 -------------------------------------------------------------------------------- ---------------- --------------
 Shareholders' equity:
      Preferred stock                                                                       23               23
      Common stock ($.00006 par value; 2,500,000,000 shares authorized; issued:
         1997 - 21,975,747; 1996 - 21,148,729)                                               1                1
      Capital surplus                                                                  208,327          176,093
      Retained earnings                                                                218,629          182,892
      Treasury stock (shares at cost:
         1997 - 66,377; 1996 - 16,834)                                                  (2,190)            (428)
      Unrealized net gain on securities available for sale                              10,691            1,472
      Notes receivable from exercise of stock options                                       (4)             (87)
 -------------------------------------------------------------------------------- ---------------- --------------
      Total shareholders' equity                                                       435,477          359,966
 -------------------------------------------------------------------------------- ---------------- --------------
               Total liabilities and shareholders' equity                           $5,399,642       $4,620,700
 ================================================================================================================

See accompanying notes to consolidated financial statements.
</TABLE>

<PAGE>22


                                                  BOK FINANCIAL CORPORATION

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

                                                    Preferred Stock Common Stock
                                                   ---------------- ------------
                                                   Shares   Amount Shares Amount
                                                   -----------------------------

December 31, 1994                                   250,000  $ 13   19,735  $  1

Net income                                                -     -        -     -
Director retainer shares                                  -     -        8     -
Issuance of common stock to Thrift Plan                   -     -        3     -
Exercise of stock options                                 -     -        6     -
Payments on stock options notes receivable                -     -        -     -
Issuance of preferred stock                             102    10        -     -
Dividends paid in shares of common stock:
     Preferred stock                                      -     -       70     -
     Common stock                                         -     -      594     -
Unrealized net gain on securities available for sale      -     -        -     -
                                                    ----------------------------

December 31, 1995                                   250,102    23   20,416     1

Net income                                                -     -        -     -
Director retainer shares                                  -     -        8     -
Exercise of stock options                                 -     -       41     -
Payments on stock options notes receivable                -     -        -     -
Cash dividends paid on preferred stock                    -     -        -     -
Dividends paid in shares of common stock:
     Preferred stock                                      -     -       69     -
     Common stock                                         -     -      615     -
Unrealized net gain on securities available for sale      -     -        -     -
                                                    ----------------------------

December 31, 1996                                   250,102    23   21,149     1

Net income                                                -     -        -     -
Director retainer shares                                  -     -        8     -
Issuance of common stock to Thrift Plan                   -     -       18     -
Exercise of stock options                                 -     -      108     -
Payments on stock options notes receivable                -     -        -     -
Dividends paid in shares of common stock:
     Preferred stock                                      -     -       54     -
     Common stock                                         -     -      639     -
Unrealized net gain on securities available for sale      -     -        -     -
                                                    ----------------------------
December 31, 1997                                   250,102   $23   21,976  $  1
================================================================================

(1) Notes receivable from exercise of stock options.

See accompanying notes to consolidated financial statements.



<PAGE>23

Consolidated Statements of Changes in Shareholders' Equity, (Continued)
(In Thousands)

Capital     Retained      Treasury Stock      Unrealized     Notes
                       --------------------
Surplus     Earnings   Shares      Amount    Gain (Loss)  Receivable(1)  Total
- --------------------------------------------------------------------------------

 $142,718    $111,878      -    $       -     $(17,423)     $(285)     $236,902

        -      49,205      -            -            -          -        49,205
      157           -      -            -            -          -           157
       70           -      -            -            -          -            70
      104           -      -            -            -          -           104
        -           -      -            -            -        131           131
        -           -      -            -            -          -            10

    1,500      (1,500)     -            -            -          -             -
   12,846     (12,856)     -            -            -          -           (10)
        -           -      -            -       14,996          -        14,996
- --------------------------------------------------------------------------------

  157,395     146,727      -            -       (2,427)      (154)      301,565

        -      54,127      -            -            -          -        54,127
      173           -      -            -            -          -           173
      569           -     17         (419)           -          -           150
        -           -      -            -            -         67            67
        -          (3)     -            -            -          -            (3)

    1,500      (1,500)     -            -            -          -             -
   16,456     (16,459)     -           (9)           -          -           (12)
        -           -      -            -        3,899          -         3,899
- --------------------------------------------------------------------------------

  176,093     182,892     17         (428)       1,472        (87)      359,966

        -      64,625      -            -            -          -        64,625
      256           -      -            -            -          -           256
      715           -      -            -            -          -           715
    2,315           -     47       (1,681)           -          -           634
        -           -      -            -            -         83            83

    1,500      (1,500)     -            -            -          -             -
   27,448     (27,388)     2          (81)           -          -           (21)
        -           -      -            -        9,219          -         9,219
- --------------------------------------------------------------------------------
 $208,327    $218,629     66      $(2,190)    $ 10,691    $    (4)     $435,477
================================================================================

<PAGE>24

                                                  BOK FINANCIAL CORPORATION
<TABLE>
CONSOLIDATED STATEMENTS OF CASH FLOWS
(In Thousands)

                                                                                         1997          1996         1995
                                                                                      ------------ ------------- ------------
<S>                                                                                   <C>          <C>           <C>      
Cash Flows From Operating Activities:
    Net income                                                                        $   64,625   $  54,127     $  49,205
       Adjustments  to  reconcile  net  income to net cash  provided  by  operating
       activities:
        Provisions for loan and repossessed real estate losses                             9,026       4,281           231
        Provisions for mortgage servicing rights                                           4,100         361           539
        Depreciation and amortization                                                     32,389      23,693        19,612
        Write-off of core deposit intangible assets                                            -       3,821             -
        Net amortization of securities
           discounts and premiums                                                          2,926       2,935         1,929
        Net gain on sale of assets                                                        (7,632)     (2,803)       (4,742)
        Contribution of stock to BOk Charitable Foundation                                 3,638           -             -
        Mortgage loans originated for resale                                            (830,132)   (714,447)     (519,392)
        Proceeds from sale of mortgage loans held for resale                             850,366     693,012       486,347
        (Increase) decrease in trading securities                                          1,455       1,323        (5,242)
        (Increase) decrease in accrued revenue receivable                                    883      (4,899)          277
        (Increase) decrease in other assets                                                6,607      (2,499)          701
        Decrease in accrued interest, taxes and expense                                  (12,909)     (3,644)       (8,176)
        Increase in other liabilities                                                      3,847       1,033         2,275
- ------------------------------------------------------------------------------------- ------------ ------------- ------------
Net cash provided by operating activities                                                129,189      56,294        23,564
- ------------------------------------------------------------------------------------- ------------ ------------- ------------
Cash Flows From Investing Activities:
    Proceeds from sales of available-for-sale securities                               1,026,464     484,436       134,109
    Proceeds from maturities of investment securities                                     25,904      25,284        17,242
    Proceeds from maturities of available-for-sale securities                            231,267     226,162       193,855
    Purchases of investment securities                                                   (40,701)    (44,890)      (29,566)
    Purchases of available for sale securities                                        (1,390,255)   (801,999)     (250,320)
    Loans originated or acquired net of principal collected                             (256,328)   (201,139)     (357,736)
    Proceeds from sales of assets                                                         14,048      30,547        43,426
    Purchases of assets                                                                  (74,341)    (36,802)      (33,439)
    Cash and cash equivalents of subsidiaries and branches acquired and sold, net         12,365        (200)      (19,371)
- ------------------------------------------------------------------------------------- ------------ ------------- ------------
Net cash used by investing activities                                                   (451,577)   (318,601)     (301,800)
- ------------------------------------------------------------------------------------- ------------ ------------- ------------
Cash Flows From Financing Activities:
    Net increase in demand deposits, transaction
      deposits, and savings accounts                                                     126,326     211,353        12,042
    Net increase (decrease) in certificates of deposit                                      (592)    107,693       318,100
    Net increase (decrease) in other borrowings                                           68,406      (1,502)      (26,528)
    Repayment of subordinated debenture                                                  (20,000)          -       (23,000)
    Issuance of subordinated debt                                                        168,356           -             -
    Issuance of preferred, common and treasury stock, net                                  1,584         311           331
    Dividends on preferred stock                                                               -          (3)            -
    Payments on notes receivable                                                              83          67           131
- ------------------------------------------------------------------------------------- ------------ ------------- ------------
Net cash provided by financing activities                                                344,163     317,919       281,076
- ------------------------------------------------------------------------------------- ------------ ------------- ------------
Net increase in cash and cash equivalents                                                 21,775      55,612         2,840
Cash and cash equivalents at beginning of period                                         367,551     311,939       309,099
- ------------------------------------------------------------------------------------- ------------ ------------- ------------
Cash and cash equivalents at end of period                                            $  389,326    $367,551      $311,939
=============================================================================================================================

Cash paid for interest                                                                $  186,339    $163,777      $157,398
=============================================================================================================================
Cash paid for taxes                                                                       20,167      21,375        10,954
=============================================================================================================================
Net loans transferred to repossessed real estate                                           2,584       2,043         2,159
=============================================================================================================================
Payment of dividends in common stock                                                      28,948      17,956        14,346
=============================================================================================================================

 See accompanying notes to consolidated financial statements.
</TABLE>


<PAGE>25

Notes to Consolidated Financial Statements

(1) Significant Accounting Policies

BASIS OF PRESENTATION  
     The Consolidated  Financial  Statements of BOK Financial  Corporation ("BOK
Financial") have been prepared in conformity with generally accepted  accounting
principles,   including  general   practices  of  the  banking   industry.   The
consolidated  financial statements include the accounts of BOK Financial and its
subsidiaries,  principally Bank of Oklahoma,  N.A. and its subsidiaries ("BOk"),
Bank of Texas, N.A. (formerly First National Bank of Park Cities and First Texas
Bank), and Bank of Arkansas, N.A. ("BOA").  Certain prior year amounts have been
reclassified to conform to current year classifications.

NATURE OF OPERATIONS 
     BOK Financial, through its subsidiaries, provides a wide range of financial
services to commercial and industrial  customers,  other financial  institutions
and consumers  throughout  Oklahoma,  Northwest  Arkansas and North Texas. These
services include  depository and cash  management;  lending and lease financing;
mortgage banking; securities brokerage,  trading and underwriting;  and personal
and corporate trust.

USE OF ESTIMATES
     Preparation of BOK Financial's  consolidated  financial statements requires
management to make estimates of future economic  activities,  including interest
rates,  loan  collectibility  and  prepayments  and  cash  flows  from  customer
accounts.  These  estimates are based upon current  conditions  and  information
available to  management.  Actual  results may differ  significantly  from these
estimates.

ACQUISITIONS
     Assets and liabilities  acquired by purchase are recorded at fair values on
the acquisition dates.  Intangible assets are amortized using  straight-line and
accelerated methods over the estimated benefit periods. These periods range from
7 to 25 years for goodwill and 7 to 10 years for core deposit  intangibles.  The
net book values of intangible  assets are evaluated for impairment when economic
conditions  indicate an impairment  may exist.  The  Consolidated  Statements of
Earnings  include the results of purchases  from the dates of  acquisition.  The
financial statements of companies acquired in pooling-of-interests  transactions
are combined  with the  Consolidated  Financial  Statements  of BOK Financial at
historical  cost as if the mergers  occurred at the  beginning  of the  earliest
period presented.

CASH EQUIVALENTS
     Due from  banks,  funds sold  (generally  federal  funds  sold for  one-day
periods) and resell  agreements  (which  generally mature within one to 30 days)
are considered cash equivalents.

SECURITIES
     Securities  are  identified  as trading,  investment  (held to maturity) or
available for sale at the time of purchase  based upon the intent of management,
liquidity and capital  requirements,  regulatory  limitations and other relevant
factors.  Trading securities,  which are acquired for profit through resale, are
carried at market  value with  unrealized  gains and losses  included in current
period   earnings.   Investment   securities  are  carried  at  amortized  cost.
Amortization  is  computed  by  methods  which  approximate  level  yield and is
adjusted for changes in prepayment estimates. Securities identified as available
for sale are carried at fair value with unrealized  gains and losses included in
shareholders' equity, net of deferred income taxes. Realized gains and losses on
sales of securities  are based upon the adjusted  cost of the specific  security
sold.

LOANS
     Loans are  either  secured or  unsecured  based on the type of loan and the
financial  condition of the borrower.  Repayment is generally expected from cash
flow or proceeds from the sale of selected assets of the borrower;  however, BOK
Financial  is  exposed  to  risk  of  loss  on  loans  due  to  the   borrower's
difficulties,  which may arise  from any number of  factors  including  problems
within  the  respective  industry  or  local  economic  conditions.   Access  to
collateral,  in the event of borrower  default,  is reasonably  assured  through
adherence to applicable  lending laws and through  sound  lending  standards and
credit review procedures.
     Interest is accrued at the applicable interest rate on the principal amount
outstanding.  Loans are placed on  nonaccrual  status  when,  in the  opinion of
management,  full  collection of principal or interest is  uncertain,  generally
when the  collection  of  principal  or  interest  is 90 days or more  past due.
Interest previously accrued but not collected is charged against interest income
when the loan is placed on nonaccrual  status.  Payments on nonaccrual loans are
applied to principal or reported as interest  income,  according to management's
judgment as to the collectibility of principal.
     Loan  origination and commitment  fees, and direct loan  origination  costs
when significant,  are deferred and amortized as an adjustment to yield over the
life of the loan or over the commitment period, as applicable.
     During 1997,  BOK  Financial  adopted  Statement  of  Financial  Accounting
Standards No. 125,  "Accounting for Transfers and Servicing of Financial  Assets
and  Extinguishments  of Liabilities" ("FAS 125"). FAS 125 established new rules
for  determining  whether  a  transfer  of  financial  assets,  such  as  loans,
constitutes  a sale and,  if so, the  determination  of any  resulting  gains or
losses.  BOK Financial has modified its loan  participation  agreements to be in
accordance with the sales criteria of FAS 125.
     Mortgage  loans held for sale are carried at the lower of aggregate cost or
market value,  including  estimated losses on unfunded  commitments and gains or
losses on related forward sales contracts.


<PAGE>26

RESERVE FOR LOAN LOSSES
     The reserve for loan losses is  maintained  at a level that, in the opinion
of management,  is adequate to absorb losses inherent in the loan portfolio. The
adequacy of the reserve for loan losses is determined  by management  based upon
evaluation of the individual  credits in the loan portfolio,  historical  credit
losses,  anticipated economic conditions in BOK Financial's primary market areas
and other  relevant  factors.  The allowance for credit losses  related to loans
that are  identified  for  evaluation in accordance  with Statement of Financial
Accounting Standards No. 114, "Accounting by Creditors for Impairment of a Loan"
("FAS  114"),  is based on  discounted  cash  flows  using  the  loan's  initial
effective  interest  rate  or the  fair  value  of the  collateral  for  certain
collateral  dependent loans. Loans are considered to be impaired when it becomes
probable that BOK Financial  will be unable to collect all amounts due according
to the contractual  terms of the loan agreement.  This is substantially the same
criteria used to determine  when a loan should be placed on  nonaccrual  status.
The amount of impairment  determined  in accordance  with FAS 114 did not differ
materially  from amounts  previously  provided.  This  evaluation  is inherently
subjective as it requires material estimates including the amounts and timing of
future  cash  flows  expected  to be  received  on  impaired  loans  that may be
susceptible to significant change.
     In accordance with the provisions of FAS 114, management has excluded small
balance,  homogeneous loans from the impairment evaluation specified in FAS 114.
Such loans include 1-4 family  mortgage loans,  consumer  loans,  and commercial
loans with committed amounts less than $1 million. The adequacy of the allowance
for loan  losses  applicable  to these loans is  evaluated  in  accordance  with
standards  established  by the  banking  regulatory  authorities  and adopted as
policy by BOK Financial.
     A  provision  for loan  losses  is  charged  against  earnings  in  amounts
necessary to maintain an adequate reserve for loan losses. Loans are charged off
when the loan balance or a portion of the loan  balance is no longer  covered by
the paying  capacity of the borrower  based on an evaluation  of available  cash
resources and collateral  value.  Loans are evaluated  quarterly and charge offs
are taken in the  quarter  in which the loss is  identified.  Additionally,  all
unsecured  or  under-secured  loans  which  are past due by 180 days or more are
charged off within 30 days. Recoveries of loans previously charged off are added
to the reserve.

REAL ESTATE AND OTHER REPOSSESSED ASSETS
     Real estate and other repossessed  assets are assets acquired in partial or
total  forgiveness of debt.  These assets are carried at the lower of cost, fair
value at date of foreclosure or current fair value less estimated selling costs.
Income  generated  by these assets is  recognized  as  received,  and  operating
expenses are recognized as incurred.

PREMISES AND EQUIPMENT
     Premises and  equipment are carried at cost less  accumulated  depreciation
and amortization.  Depreciation and amortization are computed on a straight-line
basis  over  the  estimated  useful  lives  of  the  assets  or,  for  leasehold
improvements,  over the shorter of the estimated useful lives or remaining lease
terms.

MORTGAGE SERVICING RIGHTS
     Capitalized mortgage servicing rights are carried at the lower of cost less
accumulated amortization or fair value. Amortization is determined in proportion
to  the  projected  cash  flows  over  the  estimated  lives  of  the  servicing
portfolios.  The actual  cash flows are  dependent  upon the  prepayment  of the
mortgage loans and may differ significantly from the estimates.
     Fair  value is  determined  by  discounting  the  estimated  cash  flows of
servicing revenue,  less projected servicing costs, using a risk-adjusted spread
over  U.S.  Treasury  rates,   which  is  the  assumed  market  rate  for  these
instruments.  Prepayment assumptions are based on industry consensus provided by
independent   reporting   sources.   Changes  in  current   interest  rates  may
significantly  affect these  assumptions by changing loan refinancing  activity.
Fair  value for each  servicing  portfolio  acquired  and for  servicing  rights
originated is based upon an interest  rate  stratification  for each  portfolio.
Separate  prepayment  assumptions  are then used to  project  net cash  flows by
interest rate strata within each  portfolio.  A valuation  allowance is provided
when the amortized  cost of each  portfolio or each interest rate strata exceeds
the  calculated  fair  value.  FAS  125  extends  the  requirement  to  stratify
capitalized  servicing rights by predominant risk characteristic for the purpose
of providing a valuation  allowance  for the  difference  between the  amortized
historical cost and fair value to all capitalized servicing rights.  Previously,
such stratification was required only for servicing rights capitalized after the
adoption of Statement of Financial Accounting Standards No. 122, "Accounting for
Mortgage Servicing Rights," ("FAS 122") in 1995. The result of this change is to
further  increase  the  volatility  of earnings  as the fair value of  servicing
rights react to changes in interest rates and prepayment assumptions.
     Originated  mortgage  servicing  rights are recognized when either mortgage
loans are  originated  pursuant to an existing plan for sale or, if no such plan
exists, when the mortgage loans are sold.  Substantially all fixed rate mortgage
loans originated by BOK Financial are sold under existing commitments.  The fair
value of the  originated  servicing  rights is  determined at closing based upon
current market rates.

INTEREST RATE SWAPS AND FORWARD COMMITMENTS
     BOk uses  interest  rate swaps and forward  sales  contracts as part of its
interest rate risk management  strategy.  Interest rate swaps are used primarily
to modify the interest expense of certain long-term,  fixed rate certificates of
deposit and long-term subordinated  debenture.  Amounts payable to or receivable
from the  counterparties  are  reported  in interest  expense  using the accrual
method. In the event of the early redemption of hedged obligations, any realized
or  unrealized  gain or loss  from the  swaps  would  be  recognized  in  income
coincident  with the  redemption.  The fair  value  of the swap  agreements  and
changes  in the fair  value  due to  changes  in market  interest  rates are not
recognized in the financial statements.


<PAGE>27

     Forward sales contracts are used to hedge existing and anticipated loans in
conjunction  with  mortgage  banking   activities.   The  fair  value  of  these
instruments is included in determining  the adjustment of the loan held for sale
portfolio  to the lower of cost or market.  Gains or losses on closed  contracts
are recognized when the underlying assets are disposed.
     The cost of terminating  these contracts prior to their expiration dates is
expensed when incurred.

Federal and State Income Taxes
     Deferred  tax  assets and  liabilities  are  recognized  for the future tax
consequences   attributable  to  differences  between  the  financial  statement
carrying  values of assets  and  liabilities  and their  respective  tax  bases.
Deferred tax assets are reduced by a valuation allowance based upon management's
assessment of limitations on the use of certain  deferred tax assets pursuant to
income tax  regulations,  estimates of future taxable income,  and the amount of
previously paid taxes.

Employee Benefit Plans
     BOK Financial  sponsors various plans,  including a defined benefit pension
plan ("Pension Plan"), a qualified profit sharing plan ("Thrift Plan"), employee
health care plans and a post-retirement health care plan. Employer contributions
to the Thrift Plan, which match employee contributions subject to percentage and
years of service limits,  are expensed when incurred.  Pension Plan costs, which
are based upon actuarial  computations of current costs, are expensed  annually.
Unrecognized  prior  service  cost and net gains or losses  are  amortized  on a
straight-line basis over the estimated remaining lives of the participants.  BOK
Financial  recognizes the expense of health care benefits on the accrual method.
Employer  contributions to the Pension Plan and various health care plans are in
accordance with Federal income tax regulations.

EXECUTIVE BENEFIT PLANS
     BOK Financial  accounts for its stock option plans under the  provisions of
APB 25,  "Accounting  for Stock  Issued to  Employees,"  and is also  subject to
certain  disclosures  as  required  under  Statement  of  Financial   Accounting
Standards No. 123, "Accounting for Stock-Based  Compensation,"  included in Note
12.

FIDUCIARY SERVICES
     Fees and  commissions on  approximately  $11.1 billion of assets managed by
BOK Financial under various fiduciary arrangements are recognized on the accrual
method.

EARNINGS PER SHARE
     In 1997, the Financial Accounting Standards Board issued Statement No. 128,
"Earnings per Share," ("FAS 128").  FAS 128 replaced the  calculation of primary
and fully diluted  earnings per share with basic and diluted earnings per share.
Unlike  primary  earnings  per share,  basic  earnings  per share  excludes  any
dilutive  effects of  options,  warrants  and  convertible  securities.  Diluted
earnings  per share is very similar to the  previously  reported  fully  diluted
earnings per share.  All  earnings  per share  amounts for all periods have been
presented,   and  where  appropriate,   restated  to  conform  to  the  FAS  128
requirements.           
     The average number of shares  outstanding has been restated for the effects
of stock dividends.

EFFECT OF PENDING STATEMENTS OF FINANCIAL ACCOUNTING STANDARDS
     Statement  of  Financial  Accounting  Standards  No. 127,  "Deferral of the
Effective  Date of Certain  Provisions  of FASB  Statement No. 125," ("FAS 127")
delayed  certain  provisions  of FAS 125  which  are  applicable  to  securities
lending,  repurchase and dollar  repurchase  agreements  and the  recognition of
collateral  until  1988.  These  provisions  require  entities  engaged in these
activities to report both the securities borrowed or collateral received and the
obligation  for their  return on the  consolidated  balance  sheet when  certain
conditions are met. This would tend to inflate  reported  assets and liabilities
and could  affect the  amount of capital  required  under  banking  regulations.
Management does not believe that BOK  Financial's  activities meet these certain
conditions and does not expect these provisions of FAS 125 to have a significant
effect on its consolidated balance sheet.
     Statement   of  Financial   Accounting   Standards   No.  130,   "Reporting
Comprehensive  Income,"  ("FAS  130") was  issued in 1997 and is  effective  for
fiscal years  beginning  after December 15, 1997. FAS 130 requires that items of
other  comprehensive  income be displayed in addition to net income and that the
accumulated balance of other comprehensive  income be disclosed  separately from
retained  earnings and surplus.  These disclosures will be required in financial
statements  beginning  in the first  quarter  of 1998.  FAS 130 will not  impact
amounts reported as net income or affect the  comparability of previously issued
financial statements.
     Statement of Financial  Accounting  Standards No. 131,  "Disclosures  About
Segments of an Enterprise  and Related  Information,"  ("FAS 131") was issued in
1997 and is effective for fiscal years  beginning  after  December 15, 1997. FAS
131 requires  companies to report  selected  information  about their  operating
segments  using a  management  approach,  which is defined as revenue  producing
components for which separate financial  information is produced  internally and
is subject to review by the chief  operating  decision  maker in deciding how to
allocate  resources.  This  approach  will  require  BOK  Financial  to  provide
disaggregated  information  about its activities  that are currently  considered
interrelated  in the  operations of a commercial  bank.  This  information  will
initially be  disclosed  for the year ended  December 31, 1998 with  comparative
interim disclosures beginning with the first quarter of 1999.

<PAGE>28

(2) Acquisitions

     During the first quarter of 1997, BOK Financial  completed the acquisitions
of Park Cities Bancshares, Inc. and its subsidiary,  First National Bank of Park
Cities,  Dallas, Texas (collectively "Park Cities") and First Texcorp,  Inc. and
its subsidiary First Texas Bank, Dallas, Texas (collectively "First Texas").
     On February 12, 1997, BOK Financial issued notes totaling $10.9 million and
$40 million in cash to acquire all outstanding  common shares of Park Cities and
on March 4, 1997,  BOK Financial  paid $39.3 million to acquire all  outstanding
common shares of First Texas.  Both of these  acuisitions  were accounted for by
the purchase  method of accounting.  Allocation of the purchase price to the net
assets acquired were as follows (in thousands):

                                   Park Cities   First Texas
                                   ------------- ------------

Cash and cash equivalents:          $  59,417     $  32,164

Securities                            102,505        45,967

Loans                                  79,124        58,714
Less allowance for loan losses         (1,081)       (1,444)
                                   ------------- ------------
Loans, net                             78,043        57,270
Premises and equipment                  3,357         1,784
Core deposit premium                    6,544         4,565
Other assets                            4,864         4,518
                                   ------------- ------------
Total assets acquired                 254,730       146,268

Deposits:
   Noninterest bearing                 67,275        56,441
   Interest bearing                   158,352        62,664
                                   ------------- ------------
Total deposits                        225,627       119,105
Borrowed funds                            290           333
Other liabilities                         955         1,838
                                   ------------- ------------
Net assets acquired                    27,858        24,992
Less: Purchase price                   50,855        39,263
                                   ------------- ------------
Goodwill                            $  22,997     $  14,271
                                   ==========================

     Since these acquisitions occurred early in 1997, the pro forma statement of
earnings  for  1997  would  not have  been  materially  different  from the 1997
Consolidated   Statement  of  Earnings.   The  following   unaudited   Condensed
Consolidated  Pro Forma  Statement  of Earnings for BOK  Financial  presents the
effects on income had both of the above acquisitions described above occurred at
the beginning of 1996.


Condensed Consolidated Pro Forma Statements of Earnings 
for the Year ended December 31, 1996
(In Thousands, Except Per share Date)
(Unaudited)

Net interest revenue                               $139,819
Provision for loan losses                             4,352
- ------------------------------------------------ ------------
Net interest revenue after provision for loan       135,467
losses
Other operating revenue                             108,050
Other operating expense                             173,025
- ------------------------------------------------ ------------
Income before taxes                                  70,492
Federal and state income tax                         15,909
- ------------------------------------------------ ------------
Net income                                        $  54,583
=============================================================
Earnings per share:
 Basic net income                                 $    2.43
 Diluted net income                                    2.20
- ------------------------------------------------ ------------
Average shares used in computation:
 Basic                                           21,808,828
 Diluted                                         24,792,653
- --------------------------------------------------------------

     Since 1991, BOK Financial acquired deposits insured by the Savings and Loan
Insurance Fund ("SAIF") totaling approximately $843 million. In conjunction with
these  acquisitions,  core deposit  intangible assets which represent the future
earnings  potential of these funds,  were recorded.  In determining the value of
these core  deposit  intangible  assets,  assumptions  were made  regarding  the
returns which were expected to be earned over the costs which would be incurred,
including  interest expense,  processing costs and deposit  insurance  premiums.
During  1995,  the FDIC  made a  change  in  deposit  insurance  premiums  which
significantly  decreased  the value of  deposits  insured by SAIF.  The  premium
assessed on deposits  insured by the Bank  Insurance Fund ("BIF") was reduced to
three basis points  (.03%) while the premium  assessed on SAIF insured  deposits
remained at 23 basis points (.23%).  Legislation to resolve this  difference had
been  expected from  Congress at December 31, 1995.  However,  at the end of the
first quarter of 1996, the expected legislation had been removed from the agenda
and the  resolution of the  differential  between rates assessed on SAIF insured
deposits compared to BIF insured deposits was uncertain.  This  uncertainty,  in
addition to  heightened  competitive  pressures  caused the spreads  between the
actual returns and costs to decrease. These conditions caused the value of these
core deposit  intangible  assets to be impaired and a write down of $3.8 million
was recognized in the second quarter of 1996.

<PAGE>29

(3) SALE OF ASSETS TO RELATED PARTY

     During  April  1991,  BOk sold to BOK  Financial's  principal  shareholder,
George B.  Kaiser  ("Kaiser"),  and related  business  entities  certain  loans,
repossessed  real  estate  and  the  rights  to  future  recoveries  on  certain
charge-offs.
     Recoveries  collected  by BOk and paid to Kaiser were $829  thousand,  $3.3
million and $1.4 million for 1997, 1996 and 1995, respectively.


(4) SECURITIES

INVESTMENT SECURITIES
     The amortized cost and fair values of investment  securities are as follows
(in thousands):
<TABLE>
                                                                       December 31,
                               ----------------------------------------------------------------------------------------------
                                                   1997                                            1996
                               ---------------------------------------------- -----------------------------------------------
                                Amortized     Fair       Gross Unrealized      Amortized     Fair       Gross Unrealized
                                                      -----------------------                        ------------------------
                                  Cost       Value       Gain       Loss          Cost       Value      Gain        Loss
                               ----------------------------------------------------------------------------------------------

<S>                            <C>         <C>       <C>          <C>        <C>         <C>        <C>        <C>       
U.S. Treasury                   $     850   $    845    $    -      $  (5)   $    1,000    $    992    $    2    $   (10)
Municipal and other tax exempt    164,379    164,873      1,453      (959)      134,150     134,705     1,571     (1,016)
Mortgage-backed U.S. agency
   securities                      46,849     47,374        555       (30)       62,282      62,876       832       (238)
Other debt securities               1,033      1,033          -         -           976         976         -          -
                               ----------------------------------------------------------------------------------------------
     Total                       $213,111   $214,125     $2,008     $(994)     $198,408    $199,549    $2,405    $(1,264)
=============================================================================================================================
</TABLE>

     The amortized cost and fair values of investment securities at December 31,
1997, by contractual  maturity,  are as shown in the following table (dollars in
thousands):
<TABLE>
                                                                                                          Weighted
                                    Less than      One to        Five to         Over                      Average
                                    One Year     Five Years     Ten Years     Ten Years       Total       Maturity
                                   ------------ ------------- -------------- ------------- ------------- ------------
<S>                                <C>          <C>           <C>            <C>           <C>               <C> 
 U.S. Treasuries:
    Amortized cost                 $     250    $     600     $       -      $       -     $       850       1.16
    Fair value                           249          596             -              -             845
    Nominal yield                       5.28%        5.19%                                        5.22%
  Municipal and other tax exempt:
    Amortized cost                    15,558       99,282        45,046          4,493         164,379       4.04
    Fair value                        15,480       99,264        45,329          4,800         164,873
    Nominal yield(1)                    6.64%        7.11%         7.60%          9.74%           7.27%
  Other debt securities:
    Amortized cost                       433            -           600              -           1,033       3.28
    Fair value                           433            -           600              -           1,033
    Nominal yield(1)                    4.78%                      6.31%                          5.67%
                                   ------------ ------------- -------------- ------------- ------------- ------------
  Total fixed maturity securities:
    Amortized cost                   $16,241      $99,882       $45,646         $4,493        $166,262       4.02
    Fair value                        16,162       99,860        45,929          4,800         166,751
    Nominal yield                       6.57%        7.10%         7.58%          9.74%           7.25%
                                   ====================================================
  Mortgage-backed securities:
    Amortized cost                                                                              46,849         -(2)
    Fair value                                                                                  47,374
    Nominal yield(3)                                                                              7.20%
                                                                                           --------------
  Total investment securities:
    Amortized cost                                                                             213,111
    Fair value                                                                                 214,125
   Nominal yield                                                                                  7.24%
                                                                                           =============
<FN>
(1)  Calculated on a taxable equivalent basis using a 39% effective tax rate.
(2)  The average  expected lives of  mortgage-backed  securities  were 2.8 years
     based upon current prepayment assumptions.
(3)  The nominal yield on  mortgage-backed  securities is based upon  prepayment
     assumptions   at  the   purchasedate.   Actual  yields  earned  may  differ
     significantly based upon actual prepayments.
</FN>
</TABLE>


<PAGE>30

AVAILABLE FOR SALE SECURITIES

     The amortized cost and fair value of  available-for-sale  securities are as
follows (in thousands):
<TABLE>

                                                                          December 31,
                                 -----------------------------------------------------------------------------------------------
                                                     1997                                            1996
                                 ---------------------------------------------- ------------------------------------------------
                                  Amortized      Fair      Gross Unrealized       Amortized      Fair       Gross Unrealized
                                                         ----------------------                          -----------------------
                                     Cost       Value       Gain      Loss          Cost        Value       Gain       Loss
                                 ---------------------------------------------- ------------------------------------------------

<S>                              <C>         <C>         <C>        <C>         <C>          <C>          <C>       <C>       
U.S. Treasury                    $   277,618 $   278,402 $     989  $   (205)   $   200,505  $   201,091  $  1,218  $    (632)
Municipal and other tax exempt       107,196     108,720     1,949      (425)       160,813      161,358     2,047     (1,502)
Mortgage-backed securities:
    U. S. agencies                 1,210,322   1,215,867     7,315    (1,770)       985,219      979,117     3,552     (9,654)
    Other                              2,183       2,185         2         -          3,288        3,961       687        (14)
- ------------------------------------------------------------------------------- ------------------------------------------------
Total mortgage-backed securities   1,212,505   1,218,052     7,317    (1,770)       988,507      983,078     4,239     (9,668)
- ------------------------------------------------------------------------------- ------------------------------------------------
Other debt securities                  4,480       4,498        18         -            178          178         -          -
Equity securities and mutual         130,196     139,739    10,164      (621)       106,655      113,417     6,762          -
funds
- ------------------------------------------------------------------------------- ------------------------------------------------
     Total                        $1,731,995  $1,749,411   $20,437   $(3,021)    $1,456,658   $1,459,122   $14,266   $(11,802)
================================================================================================================================
</TABLE>

     The  amortized  cost and fair values of  available-for-sale  securities  at
December 31, 1997, by contractual maturity,  are as shown in the following table
(dollars in thousands):
<TABLE>

                                                                                                             Weighted
                                      Less than       One to       Five to         Over                       Average
                                       One Year     Five Years    Ten Years     Ten Years        Total       Maturity
                                     ------------- ------------- ------------- ------------- -------------- ------------
<S>                                   <C>             <C>        <C>         <C>             <C>                 <C>
U.S. Treasuries:
    Amortized cost                    $163,160        $114,458   $       -   $         -     $   277,618         .99
    Fair value                         163,370         115,032           -             -         278,402
    Nominal yield                         5.85%           6.04%                                     5.93%
Municipal and other tax exempt:
    Amortized cost                       8,078          61,377      28,195         9,546         107,196        4.71
    Fair value                           7,939          61,838      28,860        10,083         108,720
    Nominal yield(1)                      6.14%           7.35%       8.14%         9.54%           7.66%
Other debt securities:
    Amortized cost                       3,245             677         155           403           4,480        2.01
    Fair value                           3,245             677         160           416           4,498
    Nominal yield                         5.77%           6.00%       7.77%         7.97%           6.04%
                                     ------------- ------------- ------------- ------------- -------------- ------------
Total fixed maturity securities:
    Amortized cost                    $174,483        $176,512     $28,350      $  9,949     $   389,294        2.03
    Fair value                         174,554         177,547      29,020        10,499         391,620
    Nominal yield                         5.86%           6.50%       8.14%         9.48%           6.41%
                                     ====================================================
Mortgage-backed securities:
    Amortized cost                                                                             1,212,505          -(2)
    Fair value                                                                                 1,218,052
    Nominal yield(4)                                                                                6.51%
                                                                                             --------------
Equity securities and mutual funds:
    Amortized cost                                                                               130,196          -(3)
    Fair value                                                                                   139,739
    Nominal yield                                                                                   6.82%
                                                                                             --------------
Total available-for-sale securities:
    Amortized cost                                                                            $1,731,995
    Fair value                                                                                 1,749,411
    Nominal yield                                                                                   6.51%
                                                                                             ===============
<FN>
(1)  Calculated on a taxable equivalent basis using a 39% effective tax rate.
(2)  The average  expected lives of  mortgage-backed  securities  were 2.8 years
     based upon current prepayment assumptions.
(3)  Primarily common stock and preferred stock of U.S. Government agencies with
     no stated maturity.
(4)  The nominal yield on  mortgage-backed  securities is based upon  prepayment
     assumptions  at  the  purchase  date.   Actual  yields  earned  may  differ
     significantly based upon actual prepayments.
</FN>
</TABLE>

<PAGE>31

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

                                       1997      1996      1995
                                     --------- --------- ---------

        Proceeds                    $1,026,464 $484,436  $134,109
        Gross realized gains             3,159      328     1,246
        Gross realized losses            4,488    2,935        72
        Related federal and state
          income tax expense              (270)    (574)      270
          (benefit)
        ---------------------------- --------- --------- ---------

     Effective  December 20, 1995,  BOK  Financial  adopted the  provisions of a
Financial  Accounting  Standards  Board special report on Statement of Financial
Accounting  Standards No. 115  "Accounting  for Certain  Investments in Debt and
Equity Securities," which affects the securities portfolio.
     This report permitted a one-time opportunity to sell or transfer securities
from the investment  category to the  available-for-sale  or trading  categories
without     tainting     the     remaining     portfolio.      BOK     Financial
transferred-mortgage-backed and municipal securities with a total amortized cost
of $788.5 million and a net unrealized  loss of $4.0 million from the investment
category  to   available   for  sale  in   response  to  the  more   restrictive
interpretation  of FAS 115  included in this  special  report. 
     Securities  with  amortized  costs  of $1.2  billion  and $1.0  billion  at
December  31, 1997 and 1996,  respectively,  were  pledged to secure  securities
repurchase agreements,  public and trust funds on deposit and for other purposes
as required by law.

(5) LOANS

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

                                                                        December 31,
                               -----------------------------------------------------------------------------------------------
                                                     1997                                           1996
                               -----------------------------------------------------------------------------------------------
                                  Fixed     Variable      Non-                    Fixed     Variable      Non-
                                  Rate        Rate       accrual     Total        Rate        Rate      accrual     Total
                               -----------------------------------------------------------------------------------------------

<S>                              <C>       <C>           <C>       <C>           <C>       <C>           <C>      <C>       
Commercial                       $204,641  $1,282,042    $12,717   $1,499,400    $184,950  $1,042,933    $13,494  $1,241,377
Commercial real estate            153,611     321,230      2,960      477,801     147,909     277,804      2,313     428,026
Residential mortgage              192,208     224,490      2,441      419,139     138,228     248,097      2,495     388,820
Residential mortgage - held        78,669           -          -       78,669      95,332           -          -      95,332
for sale
Consumer                          168,896     120,539        649      290,084     181,972      58,520        533     241,025
- ------------------------------------------------------------------------------------------------------------------------------
Total                            $798,025  $1,948,301    $18,767   $2,765,093    $748,391  $1,627,354    $18,835  $2,394,580
==============================================================================================================================
Foregone interest on nonaccrual loans                              $   2,882                                      $    2,975
- ------------------------------------------------------------------------------------------------------------------------------
</TABLE>

     The  majority  of  the   commercial   and  consumer  loan   portfolios  and
approximately  74% of the residential  mortgage loan portfolio  (excluding loans
held for  sale)  are loans to  businesses  and  individuals  in  Oklahoma.  This
geographic  concentration  subjects the loan  portfolio to the general  economic
conditions within this area.
     Within  the  commercial  loan   classification,   loans  to  energy-related
businesses total $332.8 million,  or 12% of total loans.  Other notable segments
include  wholesale/  retail,  $242.2  million;  manufacturing,  $201.9  million;
agriculture, $151.5 million; and services, $465.3 million, which include nursing
homes of $36.4 million, hotels of $110.5 million and healthcare of $37.4.
     Commercial real estate loans are primarily secured by properties located in
the Tulsa or Oklahoma City, Oklahoma metropolitan areas. The major components of
these properties are multifamily  residences,  $100.4 million;  construction and
land development,  $102.8 million; retail facilities,  $91.3 million; and office
buildings, $95.1 million.


<PAGE>32

     Included in loans at December 31 are loans to executive officers, directors
or principal shareholders of BOK Financial,  as defined in Regulation S-X of the
Securities and Exchange  Commission.  Such loans have been made on substantially
the same terms as those  prevailing at the time for loans to other  customers in
comparable  transactions.  Information  relating to loans to executive officers,
directors or principal shareholders is summarized as follows (in thousands):

                                      1997         1996
                                   ------------ ------------

Beginning balance                    $53,476      $45,404
   Advances                           30,934       10,968
   Payments                          (17,749)      (1,925)
   Adjustments                          (995)        (971)
- ---------------------------------- ------------ ------------
Ending balance                       $65,666      $53,476
============================================================

     Adjustments are primarily due to certain individuals being included for the
first time or no longer being  included as an  executive  officer or director of
BOK Financial.

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

                                   1997      1996     1995
                                 -------- --------- --------
Beginning balance                 $45,148  $38,287   $38,271
   Provision for loan losses        9,026    4,267       231
   Loans charged off               (9,203)  (6,510)   (3,988)
   Recoveries                       5,605    9,104     3,773
   Addition due to acquisitions     2,525        -         -
- -------------------------------- -------- --------- --------
Ending balance                    $53,101  $45,148   $38,287
============================================================

     At December 31, 1997 and 1996,  respectively,  the recorded  investment  in
loans that are  considered  to be impaired  under FAS 114 was $15.8  million and
$17.4 million (all of which were on a nonaccrual basis). Included in this amount
at December  31, 1997,  is $2.5 million of impaired  loans for which the related
allowance for credit losses is $851 thousand and $13.3 million that did not have
a related  allowance  for credit  losses.  At  December  31,  1996,  this amount
included  $2.3  million of impaired  loans for which the related  allowance  for
credit  loss was $1.2  million  and  $15.1  million  that did not have a related
allowance for credit losses. The average recorded  investments in impaired loans
during the years  ended  December  31,  1997 and 1996 were  approximately  $18.5
million and $22.3 million, respectively.  Interest income recognized on impaired
loans during 1997 and 1996 was not significant.

(6)  PREMISES AND EQUIPMENT

     Premises  and  equipment  at  December  31 are  summarized  as follows  (in
thousands):
                                         December 31,
                                   --------------------------
                                       1997         1996
                                   ------------- ------------
Land                               $  11,820      $  7,812
Buildings and improvements            42,443        30,792
Furniture and equipment               45,904        32,080
- ---------------------------------- ------------- ------------
      Subtotal                       100,167        70,684
- ---------------------------------- ------------- ------------
Less accumulated depreciation
 and amortization                     34,689        23,205
- ---------------------------------- ------------- ------------
     Total                           $65,478       $47,479
=============================================================
     Depreciation  and amortization of premises and equipment were $7.8 million,
$6.9  million and $5.6 million for the years ended  December 31, 1997,  1996 and
1995, respectively.

(7)  MORTGAGE BANKING ACTIVITIES

     BOK  Financial  engages  in  mortgage-banking  activities  through  the BOK
Mortgage Division of BOk. Residential mortgage loans held for sale totaled $78.7
million and $95.3  million and  outstanding  mortgage loan  commitments  totaled
$164.2 million and $148.2 million,  respectively, at December 31, 1997 and 1996.
Mortgage loan  commitments  are generally  outstanding for 60 to 90 days and are
subject to both credit and interest  rate risk.  Credit risk is managed  through
underwriting policies and procedures,  including collateral requirements,  which
are generally accepted by the secondary loan markets.  Exposure to interest rate
fluctuations is partially hedged through the use of  mortgage-backed  securities
forward sales  contracts.  These contracts set the price for loans which will be
delivered  in the  next 60 to 90 days.  At  December  31,  1997,  forward  sales
contracts  totaled $121.6  million.  Mortgage loans held for sale are carried at
the lower of  aggregate  cost or market  value,  including  estimated  losses on
unfunded commitments and gains or losses on forward sales contracts. At December
31, 1997, BOk owned the rights to service 92,002 mortgage loans with outstanding
principal balances of $7.0 billion, including $216 million serviced for BOk, and
held related funds for investors  and borrowers of $99.5  million.  The weighted
average interest rate and remaining term was 7.71% and 285 months, respectively.
Mortgage loans sold with recourse  totaled $7.4 million at December 31, 1997. At
December  31,  1996,  BOk  owned the  rights  to  service  mortgage  loans  with
outstanding  principal  balances  of $5.9  billion  and held  related  funds for
investors and borrowers of $77.2 million.

<PAGE>33

     Activity in capitalized  mortgage  servicing  rights and related  valuation
allowance during 1997, 1996 and 1995 are as follows (in thousands):
<TABLE>

                                   Capitalized Mortgage Servicing Rights   Valuation
                                  ----------------------------------------
                                    Purchased   Originated      Total      Allowance        Net
                                  -------------------------------------------------------------------

<S>                 <C>               <C>      <C>            <C>        <C>             <C>      
 Balance at January 1, 1995           $46,681  $         -    $  46,681  $        -      $  46,681
   Additions                           10,387        1,783       12,170           -         12,170
   Amortization expense                (7,536)        (142)      (7,678)          -         (7,678)
   Provision for impairment                 -            -            -        (539)          (539)
 ----------------------------------------------------------------------------------------------------
 Balance at December 31, 1995          49,532        1,641       51,173        (539)        50,634
   Additions                           16,874        3,984       20,858           -         20,858
   Amortization expense                (9,150)        (437)      (9,587)          -         (9,587)
   Provision for impairment                 -            -            -        (361)          (361)
 ----------------------------------------------------------------------------------------------------
 Balance at December 31, 1996          57,256        5,188       62,444        (900)        61,544
   Additions                           33,238        6,013       39,251           -         39,251
   Amortization expense               (11,533)      (1,272)     (12,805)          -        (12,805)
   Provision for impairment                 -            -            -      (4,100)        (4,100)
 ----------------------------------------------------------------------------------------------------
 Balance at December 31, 1997         $78,961     $  9,929    $  88,890     $(5,000)     $  83,890
 ====================================================================================================
 Estimated fair value of mortgage servicing rights at:
      December 31, 1995(1)            $66,528     $  1,954    $  68,482                  $  68,482
      December 31, 1996(1)            $75,660     $  8,576    $  84,236                  $  84,236
      December 31, 1997(1)            $86,335      $14,022     $100,357                   $100,357
 ---------------------------------------------------------------------------------------------------- 
<FN>
1    Excludes  approximately,   $16  million,  $18  million,  and  $19  million,
     respectively,  of loan servicing  rights on mortgage loans originated prior
     to the adoption of FAS 122.
</FN>
</TABLE>

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

     DISCOUNT RATE - Risk adjusted  spread over U.S.  Treasury rates for similar
     remaining terms, ranging from 10.18% to 10.36%.

     PREPAYMENT  RATE - Industry  consensus  prepayment  estimates  ranging from
     8.88% to 20.04% from  anindependent  reporting  source based upon  interest
     rate, original term and loan type. 

     LOAN  SERVICING  COSTS - $50 per  conventional  loan and $60 per government
     insured loan.

(8) DEPOSITS

     Interest expense on deposits is summarized as follows (in thousands):

                                     1997       1996       1995
                                 ----------------------------------

       Transaction deposits       $  33,091  $  28,336    $25,276
       Savings                        2,367      2,464      2,957
       Time:
          Certificates of
            deposits under           41,699     44,531     38,552
            $100,000
          Certificates of
            deposits $100,000        33,607     31,728     20,265
            and over
          Other time deposits        11,278     11,007     10,689
       ------------------------------------------------------------
            Total time               86,584     87,266     69,506
       ------------------------------------------------------------
            Total                  $122,042   $118,066    $97,739
       ============================================================

     The aggregate amounts of time deposits in denominations of $100,000 or more
at  December  31,  1997  and  1996  were  $709.6  million  and  $560.0  million,
respectively.
     Time deposits  expected to mature in less than one year are $859.6 million,
in one to five  years  are  $749.7  million,  and in over  five  years  are $6.6
million.
     Interest  expense on time deposits  during 1997 and 1996 was reduced by net
income from interest rate swaps of $.9 million and $1.4 million, respectively.

<PAGE>34

(9)  Other Borrowings

     Information  relating to other borrowings is summarized as follows (dollars
in thousands):

<TABLE>
                                                                                      
                                                    Daily average          Rate at      Maximum        
                                 Period-End  ---------------------------    end of   outstanding at
                                   Balance       Balance       Rate         year     any month-end
                                -------------------------------------------------------------------

<S>                             <C>           <C>                <C>          <C>      <C>        
1997:
  Funds purchased and
     repurchase agreements      $   631,815   $   703,496        5.53%        5.83%    $   822,109
  Other                             542,443       449,348        6.23         4.50         548,355
- ------------------------------------------------------------
     Total                      $ 1,174,258   $ 1,152,844        5.80         5.22       1,287,295
- ---------------------------------------------------------------------------------------------------
1996:
  Funds purchased and
     repurchase agreements      $   669,176   $   558,940        5.49%        5.91%    $   669,176
  Other                             277,128       235,775        6.08         6.00         354,712
- ------------------------------------------------------------
     Total                      $   946,304   $   794,715        5.67         5.94         946,304
===================================================================================================
1995:
  Funds purchased and
     repurchase agreements      $   697,497   $   894,322        6.03%        5.75%    $ 1,052,369
  Other                             250,309       129,458        6.27         6.03         250,309
- ------------------------------------------------------------
     Total                      $   947,806   $ 1,023,780        6.06         5.82       1,135,168
===================================================================================================
</TABLE>

     Other  borrowings at December 31, 1997 included  $342.3 million in advances
from the  Federal  Home Loan Bank.  These  advances,  which are used for funding
purposes,  consist of term funds bearing  interest from 5.66% - 7.80%.  Of these
term funds,  $222.9 million mature in 1998,  $24.0 million mature in 1999, $17.6
million mature in 2000,  $20.9 million  mature in 2001,  $18.8 million mature in
2002, and $38.1 million mature  thereafter.  In accordance  with policies of the
Federal  Home Loan Bank,  BOk has granted a blanket  pledge of  eligible  assets
(generally unencumbered U.S. Treasury and mortgage-backed securities, 1-4 family
loans and  multifamily  loans) as  collateral  for these  advances.  The  credit
available to BOk at December  31, 1997  pursuant to the Federal Home Loan Bank's
collateral policies is $683 million.
     BOK  Financial  had  lines of credit  available  from  commercial  banks at
December  31,  1997 of $50  million,  with $22 million  outstanding,  which bear
interest  based  on LIBOR  and are  unsecured.  Interest  is paid  monthly  with
principal due no later than October 1998.
     BOKF issued a $150 million  subordinated  debenture in 1997 at a discounted
cost of 7.2%,  which had a balance at December  31,  1997 of $148.4  million and
will mature in 2007. Interest expense on the subordinated  debenture was reduced
by net income from interest rate swaps of $338 thousand during 1997.
     Funds purchased generally mature within one to 90 days from the transaction
date.  At December 31, 1997,  securities  sold under  agreements  to  repurchase
totaled $440.9 million with related accrued  interest  payable of $549 thousand.
Additional information relating to repurchase agreements at December 31, 1997 is
as follows (dollars in thousands):

                             Carrying        Market        Repurchase   Average
Security Sold/Maturity         Value          Value        Liability(1)   Rate
- --------------------------------------------------------------------------------

U.S. Treasury Securities:
  Overnight                   $  20,130    $  20,286        $  12,832     5.24%

U.S. Agency Securities:
  Overnight                     186,025      187,012          164,438     5.12
  Term of up to 30 days          42,020       42,261           29,068     6.13
  Term of 30 to 90 days         269,239      271,574          235,111     6.08
- ------------------------------------------------------------------------
     Total Agency Securities    497,284      500,847          428,617     5.71
- ------------------------------------------------------------------------
  Total                       $ 517,414    $ 521,133        $ 441,449     5.70
========================================================================
(1) BOK Financial maintains control over the securities underlying
    overnight   repurchase   agreements  and  generally  transfers
    control  over   securities   underlying   longer  term  dealer
    repurchase agreements to the respective counterparty.


     On  March 4,  1997,  BOK  Financial  issued  a $20.0  million  subordinated
debenture  to Kaiser and repaid it on August 13,  1997.  The  interest  rate was
fixed at LIBOR.

<PAGE>35

(10)   FEDERAL AND STATE INCOME TAXES

     Deferred income taxes reflect the net tax effects of temporary  differences
between the carrying  amounts of assets and liabilities for financial  reporting
purposes and the amounts used for income tax purposes. Significant components of
deferred tax assets and liabilities are as follows (in thousands):

                                                 December 31,
                                               1997         1996
                                          ----------------------------

       Deferred tax liabilities:
          Pension contributions in excess
            of book expense                 $  2,500      $  3,000
          Securities valuation adjustments    10,100         3,700
          Mortgage servicing                   7,000         4,900
          Tax installment sale                   900         1,100
          Other                                2,100         1,800
       ---------------------------------------------------------------
            Total deferred tax liabilities    22,600        14,500
       ---------------------------------------------------------------
       Deferred tax assets:
          Loan loss reserve                   20,000        17,500
          Valuation adjustments                9,000        13,900
          Book expense in excess of tax        4,900         4,000
          Other                                3,300         4,400
       ---------------------------------------------------------------
            Total deferred tax assets         37,200        39,800
       Valuation allowance for deferred
          tax assets                               -             -
       ---------------------------------------------------------------
            Net deferred tax assets           37,200        39,800
       ---------------------------------------------------------------
       Deferred tax assets in excess of
          deferred tax liabilities           $14,600       $25,300
       ===============================================================

     The significant  components of the provision for income taxes  attributable
to continuing operations for BOK Financial are shown below (in thousands):

                                    1997        1996       1995
                                -----------------------------------

       Current:
          Federal                 $  9,631     $16,623     $14,707
          State                      1,333       2,399       2,273
       ------------------------------------------------------------
          Total current             10,964      19,022      16,980
       ------------------------------------------------------------
       Deferred:
          Federal                    4,667      (3,380)     (1,871)
          State                        851        (313)       (341)
       ------------------------------------------------------------
          Total deferred             5,518      (3,693)     (2,212)
       ------------------------------------------------------------
            Total income tax       $16,482     $15,329     $14,768
       ============================================================

     The  significant  components  of the  deferred  provision  for income taxes
attributable  to  continuing  operations  for BOK  Financial are shown below (in
thousands):

                                         1997     1996     1995
                                       ----------------------------

       Deferred tax expense (benefit)
          excluding components listed
          below                          $5,518  $ 2,507  $ 2,753
       Change in valuation allowance          -   (6,200)  (6,065)
       Built in loss carryforward utilized    -        -    1,100
       ------------------------------------------------------------
            Total deferred provision     $5,518  $(3,693) $(2,212)
       ============================================================

     The  reconciliations  of  income  attributable  to  continuing   operations
computed at the U.S.  federal  statutory  tax rates to income tax expense are as
follows (dollars in thousands):

                                    1997       1996       1995
                                 ----------------------------------
       Amount:
          Federal statutory tax    $28,387    $24,310    $22,391
          Tax exempt revenue        (4,219)    (3,958)    (3,747)
          Effect of state income
            taxes,
            net of federal benefit   2,184      2,086      1,932
          Goodwill amortization      2,267      1,411      1,065
          Loss carryforward,
            benefit recognized           -          -     (1,100)
          Utilization of tax          (774)    (1,488)    (1,000)
            credits
          Reduction of tax          (9,000)         -          -
            reserve
          Portion of reduction in
            valuation allowance
            impacting tax expense        -     (6,200)    (4,965)
          Other, net                (2,363)      (832)       192
       ------------------------------------------------------------
            Total                  $16,482    $15,329    $14,768
       ============================================================

                                    1997       1996       1995
                                 ----------------------------------
       Percent of pretax income:
          Federal statutory rate        35%        35%        35%
          Tax-exempt revenue            (5)        (6)        (6)
          Effect of state income
            taxes,
            net of federal benefit       3          3          3
          Goodwill amortization          3          2          2
          Loss carryforward,
            benefit recognized           -          -         (2)
          Utilization of tax            (1)        (2)        (2)
            credits
          Reduction of tax             (11)         -          -
            reserve
          Portion of reduction in
            valuation allowance
            impacting tax expense        -         (9)        (8)
          Other, net                    (4)        (1)         1
       ------------------------------------------------------------
            Total                       20%        22%        23%
       ============================================================

     BOK Financial is currently  under an audit by the Internal  Revenue Service
for 1994.  The  ultimate  outcome of this audit  cannot be  determined  with any
certainty at this time.  However,  management expects no material adverse impact
on the  financial  statements.  As of December  31, 1997,  the Internal  Revenue
Service  closed  its  examination  of BOk and BOK  Financial  for 1992 and 1993,
respectively.  As a result of the outcome of these  examinations,  BOK Financial
realized a $9 million tax reserve that was no longer needed,  which was credited
against current federal income tax expense in 1997.

<PAGE>36

(11) Employee Benefits

     BOK Financial sponsors a defined benefit Pension Plan for all employees who
satisfy certain age and service  requirements.  The following tables present the
Pension  Plan's funded status and amounts  recognized  for the period  indicated
(dollars in thousands):
<TABLE>

                                                                         December 31,
                                                                      1997         1996
                                                                  ---------------------------
<S>                                                                 <C>          <C>      
Actuarial present value of benefit obligations:
   Accumulated benefit obligation, including vested benefits of
     1997 - $11,580; 1996 - $8,653                                  $(13,313)    $(11,331)
- ---------------------------------------------------------------------------------------------
   Projected benefit obligation for service rendered to date         (13,313)     (11,331)
   Plan assets at fair value                                          17,102       13,261
- ---------------------------------------------------------------------------------------------
   Plan assets in excess of projected benefit obligation               3,789        1,930
   Unrecognized prior service cost                                       860          920
   Unrecognized net loss                                               1,567        2,698
- ---------------------------------------------------------------------------------------------
     Prepaid pension asset                                          $  6,216     $  5,548
=============================================================================================
   Discount rate                                                        7.00%        7.50%
- ---------------------------------------------------------------------------------------------
   Compensation increase rate                                           5.25%        5.25%
- ---------------------------------------------------------------------------------------------
</TABLE>
<TABLE>

                                     1997         1996         1995
                                ----------------------------------------
Net pension cost included the following expense (income):
<S>                                 <C>         <C>           <C>   
   Service cost                     $1,772      $ 1,803       $1,333
   Interest cost                       812          678          582
   Deferred gain on assets           1,386          585          584
   Actual return on plan assets     (2,776)      (1,757)      (1,506)
   Other, net                          231          203          135
- ------------------------------------------------------------------------
     Net periodic pension cost      $1,425      $ 1,512       $1,128
========================================================================
   Expected return on assets         10.00%       10.00%        9.50%
- ------------------------------------------------------------------------
</TABLE>

     Assets of the Pension Plan consist  primarily of shares in cash  management
funds,  common stock and bond funds, and guaranteed  investment  contract funds.
Benefits are based on the employee's age and length of service.
     Employee contributions to the Thrift Plan, a defined contribution plan, are
matched  by BOK  Financial  up to 4% of base  compensation,  based upon years of
service.  Participants  may direct the investment of their accounts in a variety
of options,  including BOK Financial Common Stock.  Employer  contributions vest
over five years.  Expenses incurred by BOK Financial for the Thrift Plan totaled
$1.4  million,   $1.2  million  and  $1.5  million  for  1997,  1996  and  1995,
respectively.
     BOK Financial sponsors a defined benefit  post-retirement  employee medical
plan which pays 50 percent of annual medical insurance premiums for retirees who
meet certain age and service requirements. Assets consist primarily of shares in
a cash management  fund.  Liability for the  post-retirement  plan is limited to
current retirees and certain employees currently age 60 or older.

     The  following   tables  present  the  plan's  funded  status  and  amounts
recognized for the periods indicated (dollars in thousands):

                                          1997      1996
                                       ---------------------
Accumulated post-retirement benefit
   obligation                           $(3,532)   $(2,840)
Fair value of plan assets                   675        665
- ------------------------------------------------------------
Fund status                              (2,857)    (2,175)
Unrecognized transition asset              (200)      (232)
Unrecognized net loss                     1,179        418
- ------------------------------------------------------------
   Accrued post-retirement benefit      $(1,878)   $(1,989)
============================================================
Discount rate                              7.00       7.50%
- ------------------------------------------------------------
Medical inflation rate                     8.00%      9.00%
                                        to 5.00%   to 5.00%
- ------------------------------------------------------------

                                          1997      1996
                                       ---------------------
Net post-retirement benefits cost includes:
   Service cost                          $    4      $  13
   Interest cost                            202        177
   Actual return on plan assets             (13)       (15)
   Deferred loss on assets                  (49)       (48)
   Amortization of unrecognized
     transition obligation                  (32)       (32)
   Other, net                                10          -
- ------------------------------------------------------------
     Net post-retirement benefits cost     $122      $  95
============================================================
   Expected return on assets               10.00%    10.00%
- ------------------------------------------------------------

     A 1% increase in the assumed  medical  inflation  rate would  increase  the
accumulated  post-retirement  benefit  obligation by approximately $250 thousand
and would increase post-retirement benefit cost by $14 thousand.

     Under various performance incentive plans,  participating  employees may be
granted  awards  based on defined  formulas  or other  criteria.  Earnings  were
charged  $10.3  million in 1997,  $7.5 million in 1996 and $5.3 million in 1995,
for such awards.

<PAGE>37

(12)   EXECUTIVE BENEFIT PLANS

     The Board of Directors of BOK Financial  has approved  various stock option
plans.  The number of options  awarded and the  employees to receive the options
are  determined  by the  Chairman  of the Board and the  President,  subject  to
approval of the Board of Directors or a committee thereof.
     Options  awarded  under these  plans are  subject to vesting  requirements.
Generally,  one-seventh  of the options  awarded vest  annually and expire three
years after vesting.
     The following table presents options outstanding during 1996 and 1997 under
these plans:

                                                      Weighted-
                                                       Average
                                                       Exercise
                                           Number       Price
                                         --------------------------
       Options outstanding at
          December 31, 1995                 963,560      $18.29
       Options awarded                      254,737       23.14
       Options exercised                    (42,634)      13.36
       Options forfeited                    (52,508)      18.83
       Options expired                         (199)      12.94
       ------------------------------------------------------------
       Options outstanding at
          December 31, 1996               1,122,956      $19.55
       Options awarded                      310,904       38.59
       Options exercised                   (112,063)      17.98
       Options forfeited                    (45,998)      20.97
       Options expired                         (136)      18.91
       ------------------------------------------------------------
       Options outstanding at
          December 31, 1997               1,275,663      $24.28
       ============================================================
       Options vested at
          December 31, 1997                 317,400      $18.72
       ------------------------------------------------------------

           The  following  table  summarizes  information  concerning  currently
outstanding and vested options:

           Options Outstanding                      Options Vested
- ------------------------------------------------- -------------------
                            Weighted
                             Average    Weighted             Weighted
   Range of                 Remaining    Average              Average
   Exercise      Number     Contractual Exercise   Number    Exercise
    Prices     Outstanding  Life(years)  Price     Vested      Price
- ------------------------------------------------- --------------------

$         12.94    124,097      2.92     $12.94    66,975      $12.94
  19.22 - 23.14    843,495      4.61      20.72   250,425       20.26
          38.59    308,071      6.92      38.59         -           -

     Under APB 25 no  compensation  expense is  recognized  at the date of grant
since the exercise  price of BOK  Financial's  employee  stock option equals the
market price of the underlying stock on the date of grant.
     FASB Statement No. 123, "Accounting for Stock-Based Compensation," requires
disclosure of pro forma information  regarding net income and earnings per share
as if BOK Financial  accounted for employee stock options granted  subsequent to
December 31, 1994 under the fair value method of the Statement.
     The fair value of these  options was estimated at the date of grant using a
Black-Scholes   option   pricing  model  with  the  following   weighted-average
assumptions:

                                       1997      1996      1995
                                      -------- --------- ---------
        Average risk-free interest     5.72%     6.10%    6.04%
        rate
        Dividend yield                  None     None      None
        Volatility factors              .200     .190      .190
        Weighted-average
        expected life                 7 years   8 years   8 years

     The  Black-Scholes   option  valuation  model  was  developed  for  use  in
estimating the fair value of traded  options which have no vesting  restrictions
and are fully  transferable.  In addition,  option  valuation models require the
input of highly  subjective  assumptions  including  the  expected  stock  price
volatility.  Because BOK Financial's employee stock options have characteristics
significantly different from those of traded options, and because changes in the
subjective input assumptions can materially  affect the fair value estimate,  in
management's  opinion, the existing models do not necessarily provide a reliable
single measure of the fair value of its employee stock options.

     For  purposes of pro forma  disclosures,  the  estimated  fair value of the
options is amortized to expense over the options' vesting period.  The following
table  represents  the  required  pro  forma  disclosures  for  options  granted
subsequent to December 31, 1994:

                                       1997(1)   1996(1)   1995(1)
                                      -------- --------- ---------

        Pro forma net income          $63,986  $53,748   $49,196
        Pro forma earnings per
        share:
            Basic                       $2.86    $2.40     $2.19
            Diluted                      2.56     2.17      1.99

(1)  Because  Statement 123 is applicable only to options granted  subsequent to
     December 31, 1994, its pro forma effect will not be fully  reflected  until
     2003.

<PAGE>38

(13) COMMITMENTS AND CONTINGENT LIABILITIES

     In the ordinary course of business,  BOK Financial and its subsidiaries are
subject to legal actions and  complaints.  Management  believes,  based upon the
opinion of counsel,  that the actions and liability or loss,  if any,  resulting
from  the  final  outcomes  of the  proceedings,  will  not be  material  in the
aggregate.
     BOk has been sued in the  United  States  District  Court for the  Northern
District of Oklahoma by the holder of a mortgage  serviced by BOk Mortgage.  The
plaintiff  alleges that BOk required the mortgagor to maintain an escrow balance
in excess of the amount  permitted by the mortgage.  The plaintiff seeks to have
the  action  certified  as a class  action.  The  plaintiff  alleges  breach  of
contract,  breach of fiduciary  duty, and violation of the Racketeer  Influenced
and Corrupt  Organizations  Act and seeks treble  damages.  Management  has been
advised  that,  in the  opinion of its  counsel,  BOk has valid  defenses to the
plaintiff's  claims and any damages the plaintiff  class may have suffered would
be immaterial in amount.
     BOk is obligated under a long-term  lease for its bank premises  located in
downtown Tulsa. The lease term, which began November 1, 1976, is for fifty-seven
years  with  options  to  terminate  at  the  end  of  the   thirty-seventh  and
forty-seventh years. Annual base rent is $3.1 million. BOk subleases portions of
its space for annual rents of $406  thousand  each year through  2000.  Net rent
expense on this lease was $2.7  million in 1997,  $2.7  million in 1996 and $2.6
million in 1995.  Total rent expense for BOK Financial was $7.7 million in 1997,
$6.9 million in 1996 and $6.7 million in 1995.
     At December 31, 1997,  the future  minimum lease payments for equipment and
premises  under  operating  leases were as follows:  $8.0 million in 1998,  $7.8
million in 1999,  $7.7 million in 2000,  $7.3  million in 2001,  $6.7 million in
2002 and a total of $105.3 million thereafter.
     BOk and The Williams Companies,  Inc. guaranteed 30 percent and 70 percent,
respectively,  of the $18.7  million  debt,  which  matures  May 15,  2007,  and
operating  deficit  of two  parking  facilities  operated  by the Tulsa  Parking
Authority.  Total expense  related to this  guarantee was $226 thousand in 1997,
zero in 1996 and $100 thousand in 1995.
     The Federal Reserve Bank requires member banks to maintain  certain minimum
average cash balances.  These balances were approximately $78.8 million for 1997
and $70.8 million for 1996.


(14) 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.
     Commitments  to extend credit are  agreements to lend to a customer as long
as  there  is no  violation  of  any  condition  established  in  the  contract.
Commitments  generally have fixed expiration dates or other termination  clauses
and may require payment of a fee. At December 31, 1997, outstanding  commitments
totaled  $1.4  billion.  Since some of the  commitments  are  expected to expire
before  being  drawn  upon,  the total  commitment  amounts  do not  necessarily
represent future cash requirements.  BOK Financial uses the same credit policies
in making  commitments as it does loans. The amount of collateral  obtained,  if
deemed necessary, is based on management's credit evaluation of the borrower.
     Standby letters of credit are conditional  commitments  issued to guarantee
the  performance of a customer to a third party.  Since the credit risk involved
in issuing standby letters of credit is essentially the same as that involved in
extending  loan  commitments,  BOK  Financial  uses the same credit  policies in
evaluating the  creditworthiness  of the customer.  Additionally,  BOK Financial
uses the same evaluation  process in obtaining  collateral on standby letters of
credit  as it does for loan  commitments.  At  December  31,  1997,  outstanding
standby letters of credit totaled $99.6 million.
     Commercial  letters  of  credit  are  used  to  facilitate  customer  trade
transactions  with the drafts  being drawn when the  underlying  transaction  is
consummated.  At December 31,  1997,  outstanding  commercial  letters of credit
totaled $6.0 million.
     BOK  Financial  uses  interest  rate  swaps,  a form  of  off-balance-sheet
derivative  product,  in managing its interest  rate risk.  These swaps are used
primarily to more closely  match the interest paid on certain  long-term,  fixed
rate certificates of deposit and subordinated debenture with earning assets. BOK
Financial  agrees with other parties to exchange,  at specified  intervals,  the
difference between  fixed-rate and floating-rate  interest amounts calculated by
reference to an agreed-upon  notional amount. At December 31, 1997, the notional
amount of BOK  Financial's  interest  rate swaps  totaled  $219.2  million  with
related credit exposure, represented by the fair value of the contracts, of $6.6
million.  During  1997 and 1996,  income from the swaps  exceeded  costs by $1.2
million  and  $1.4  million,  respectively,   which  reduced  interest  expense.
Scheduled repricing periods for the swaps are as follows (in thousands):

                   31-90     91-365      Over
                   days       days      1 year     Total
                --------------------------------------------
Pay floating     $(130,000)  $(55,000) $     -   $(185,000)
Receive fixed            -     63,000  122,000     185,000
Pay fixed                -          -  (34,160)    (34,160)
Receive floating    34,160          -        -      34,160
- ------------------------------------------------------------
Total            $ (95,840)  $  8,000  $87,840   $       -
============================================================

     The  expiration  dates of the swap  contracts  are  designed  to match  the
estimated  maturity  dates of the  underlying  liability and matures as follows:
$63,000 in 1998,  $22,000 in 1999, $7,660 in 2002,  $16,500 in 2006 and $110,000
in 2007.
     BOK Financial utilized  securities forward sales contracts  associated with
its mortgage banking activities as described in Note 7.

<PAGE>39

(15)   SHAREHOLDERS' EQUITY

PREFERRED STOCK
     One billion  shares of  preferred  stock with a par value of  $0.00005  per
share are authorized. A single series of 250,000,000 shares designated as Series
A  Preferred  Stock  ("Series  A  Preferred  Stock")  is  currently  issued  and
outstanding.  The  Series A  Preferred  Stock  has no  voting  rights  except as
otherwise provided by Oklahoma corporate law and may be converted into one share
of Common Stock for each 86 shares of Series A Preferred  Stock at the option of
the holder.  Dividends  are  cumulative  at an annual rate of ten percent of the
$0.06 per share  liquidation  preference  value when declared and are payable in
cash. Aggregate liquidation  preference is $15.0 million.  During 1997, 1996 and
1995,  53,615  shares,  69,672  shares and 69,959  shares  respectively,  of BOK
Financial  common  stock were  issued in payment  of  dividends  on the Series A
Preferred  Stock in lieu of cash by mutual  agreement of BOK  Financial  and the
holders of the Series A Preferred Stock.  Kaiser owns substantially all Series A
Preferred  Stock.  These  shares were valued at $1.5  million in 1997,  1996 and
1995,  based on average market price,  as defined,  for a 65 business day period
preceding declaration.
     During 1995,  102 nonvoting  units in an entity owned by BOk were issued to
various  officers of BOk.  These units are  eligible  for an annual,  cumulative
distribution of $8 per unit and have a preferred value upon  liquidation of $100
per unit.

Common Stock
     Common stock consists of 2.5 billion authorized shares, $0.00006 par value.
Holders of common  shares are  entitled to one vote per share at the election of
the Board of Directors and on any question arising at any shareholders'  meeting
and to receive dividends when and as declared.  No common stock dividends can be
paid unless all  accrued  dividends  on the Series A  Preferred  Stock have been
paid. The present policy of BOK Financial is to retain  earnings for capital and
future growth,  and management has no current plans to recommend payment of cash
dividends on common  stock.  Additionally,  regulations  restrict the ability of
national banks and bank holding companies to pay dividends.
     During 1997, 1996 and 1995, 3% dividends payable in shares of BOK Financial
common  stock were  declared  and paid.  The shares  issued were valued at $27.4
million,  $16.5 million and $12.8  million,  respectively,  based on the average
closing bid/ask prices on the day preceding declaration.

SUBSIDIARY BANKS
     The amounts of dividends which BOK Financial's subsidiary banks can declare
and the  amounts  of loans the  subsidiary  banks can extend to  affiliates  are
limited by various federal and state banking regulations.  Generally,  dividends
declared during a calendar year are limited to net profits, as defined,  for the
year plus retained profits for the preceding two years. The amounts of dividends
are further  restricted by minimum  capital  requirements.  Pursuant to the most
restrictive of the regulations at December 31, 1997, BOK Financial's  subsidiary
banks could  declare  dividends up to $46.8  million  without  prior  regulatory
approval.  The subsidiary  banks declared and paid dividends of $69.8 million in
1997, $31 million in 1997, and none in 1995.
     Loans  to a  single  affiliate  may  not  exceed  10.0%  and  loans  to all
affiliates may not exceed 20.0% of unimpaired  capital and surplus,  as defined.
Additionally, loans to affiliates must be fully secured. As of December 31, 1997
and 1996,  these loans totaled $28.8  million and $12.4  million,  respectively.
Total loan commitments to affiliates at December 31, 1997 were $50.0 million.

REGULATORY CAPITAL
     Financial  institutions are considered to be "well capitalized" pursuant to
the  Federal  Deposit  Insurance  Corporation  Improvement  Act of 1991 if their
Leverage,  Tier  1 and  Total  Capital  ratios  are at  least  5%,  6% and  10%,
respectively.  As shown  below,  BOK  Financial's  and all banking  subsidiaries
capital ratios exceed the regulatory definition of well capitalized.
     As defined by  regulations,  Tier 1 capital  consists  primarily  of common
stockholders'  equity less certain  intangible  assets.  Total capital  consists
primarily of Tier 1 capital plus preferred stock, subordinated debt and reserves
for loan losses, subject to certain limitations.

                                          December 31,
                              --------------------------------------
                                     1997               1996
                              --------------------------------------
                                Amount   Ratio     Amount   Ratio
                              --------------------------------------
       (Dollars in thousands)

       Total Capital (to Risk Weighted Assets):
          Consolidated         $552,872   14.54%  $369,007   11.74%
          BOk                   464,996   13.35    322,658   10.46
          BOA                    10,632   16.43     10,004   13.97
          First Texas Bank(1)    24,759   32.47
          First National Bank of
            Park Cities(1)       25,016   23.04

       Tier I Capital (to Risk Weighted Assets):
          Consolidated         $356,928    9.39%  $330,220   10.49%
          BOk                   280,920    8.06    284,025    9.21
          BOA                     9,820   15.18      9,108   12.72
          First Texas Bank(1)    23,797   31.21
          First National Bank of
            Park Cities(1)       23,661   21.79

       Tier I Capital (to Average Assets):
          Consolidated         $356,928    6.81%  $330,220    7.46%
          BOk                   280,920    5.90    284,025    6.52
          BOA                     9,820   11.51      9,108    9.75
          First Texas Bank(1)    23,797   16.12
          First National Bank of
            Park Cities(1)       23,661    9.76

(1)  First Texas Bank and first  National  Bank of Park Cities were  acquired in
     1997, see Note 2.

<PAGE>40

(16) EARNINGS PER SHARE

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

                                                                     1997          1996           1995
                                                                --------------------------------------------
<S>                                                             <C>           <C>           <C>           
Numerator
   Net income                                                   $      64,625 $      54,127 $       49,205
   Preferred stock dividends                                           (1,500)       (1,500)        (1,500)
- ------------------------------------------------------------------------------------------------------------
Numerator for basic earnings per share - income
   available to common stockholders                                    63,125        52,627         47,705
- ------------------------------------------------------------------------------------------------------------
Effect of dilutive securities:
   Preferred stock dividends                                            1,500         1,500          1,500
- ------------------------------------------------------------------------------------------------------------
Numerator for diluted earnings per share - income available
   to common stockholders after assumed conversion              $      64,625 $      54,127 $       49,205
- ------------------------------------------------------------------------------------------------------------
 Denominator:
   Denominator for basic earnings per share -weighted average      21,860,260    21,808,828     21,787,884
shares
   Effect of dilutive securities:
     Employee stock options                                           263,572        85,639         56,815
     Convertible preferred stock                                    2,898,186     2,898,186      2,898,186
- ------------------------------------------------------------------------------------------------------------
Dilutive potential common shares                                    3,161,758     2,983,825      2,955,001
============================================================================================================
Denominator for diluted earnings per share - adjusted
   weighted average shares and assumed conversions                 25,022,018    24,792,653     24,742,885
============================================================================================================
Basic earnings per share                                                $2.89         $2.41          $2.19
============================================================================================================
Diluted earnings per share                                              $2.58         $2.18          $1.99
============================================================================================================
</TABLE>

(17) FAIR VALUE OF FINANCIAL INSTRUMENTS

The following  table  presents the carrying  values and estimated fair values of
financial instruments as of December 31, 1997 and 1996 (dollars in thousands):
<TABLE>

                                                         Range of     Average                    Estimated
                                           Carrying    Contractual   Repricing     Discount        Fair
                                             Value        Yields     (in years)      Rate          Value
                                         -------------------------------------------------------------------
1997:
<S>                                      <C>           <C>               <C>     <C>            <C>        
  Cash and cash equivalents              $   389,326              -       -                 -  $   389,326
  Securities                               1,967,521              -       -                 -    1,968,535
  Loans:
     Commercial                            1,499,400    4.28 - 15.97%    0.4      7.52 - 10.28%  1,489,902
     Commercial real estate                  477,801    5.78 - 12.93     1.1      9.15 - 10.00     472,610
     Residential mortgage                    419,139    3.81 - 14.87     1.6     7.15 -   7.73    425,185
     Residential mortgage - held for sale     78,669        -             -            -            78,669
     Consumer                                290,084    5.00 - 17.90     1.2      7.75 - 13.50     289,681
- ------------------------------------------------------------------------------------------------------------
Total loans                                2,765,093                                             2,756,047

Reserve for loan losses                      (53,101)                                                    -
- ------------------------------------------------------------------------------------------------------------
Net loans                                  2,711,992              -       -                 -    2,756,047
Deposits with no stated maturity           2,112,217              -       -                 -    2,112,217
Time deposits                              1,615,862    2.71 - 9.81      0.4      4.65 - 5.98    1,606,668
Other borrowings                           1,025,902    4.66 - 6.87      0.5      5.25 - 8.50    1,029,773
Subordinated debt                            148,356           7.13      6.1             6.49      154,101
- ------------------------------------------------------------------------------------------------------------
1996:
  Cash and cash equivalents              $   367,551            -          -              -    $   367,551
  Securities                               1,663,984            -          -              -      1,665,125
  Loans:
     Commercial                            1,241,377    4.28 -15.21%     0.5      7.28 - 9.15%   1,231,924
     Commercial real estate                  428,026    6.34 -13.43      1.0      8.90 - 9.75      423,395
     Residential mortgage                    388,820    3.81 -14.87      1.8      7.78 - 7.86      241,813
     Residential mortgage - held for sale     95,332            -         -              -          95,332
     Consumer                                241,025    5.00 -18.15      1.7      7.64 -13.25      387,569
- ------------------------------------------------------------------------------------------------------------
Total loans                                2,394,580                                             2,380,033
Reserve for loan losses                      (45,148)                                                    -
- ------------------------------------------------------------------------------------------------------------
Net loans                                  2,349,432                                              2,380,033
Deposits with no stated maturity           1,748,418         -             -              -       1,748,418
Time deposits                              1,508,337    2.03-  9.85      0.7      5.25-  6.14     1,509,380
Other borrowings                             946,304    3.77-  9.28      0.5      5.00-  8.25       946,279
- ------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>41

     The following  methods and  assumptions  were used in  estimating  the fair
value of these financial instruments:

CASH AND CASH EQUIVALENTS
     The book value  reported  in the  consolidated  balance  sheet for cash and
short-term instruments approximates those assets' fair values.

SECURITIES
     The fair values of  securities  are based on quoted market prices or dealer
quotes,  when available.  If quotes are not available,  fair values are based on
quoted prices of comparable instruments.

LOANS
     The fair  value of  loans,  excluding  loans  held for  sale,  are based on
discounted  cash flow analyses using interest rates  currently being offered for
loans with similar remaining terms to maturity and credit risk, adjusted for the
impact of interest rate floors and ceilings. The fair values of classified loans
were  estimated to  approximate  their  carrying  values less loan loss reserves
allocated to these loans of $10.6  million and $9.9 million at December 31, 1997
and 1996, respectively.
     The fair values of residential  mortgage loans held for sale are based upon
quoted  market  prices  of  such  loans  sold  in  securitization  transactions,
including related unfunded loan commitments and hedging transactions.

DEPOSITS
     The fair values of time deposits are based on discounted cash flow analyses
using interest rates  currently being offered on similar  transactions.  FAS 107
defines the  estimated  fair value of deposits  with no stated  maturity,  which
includes  demand  deposits,  transaction  deposits,  money  market  deposits and
savings  accounts,  to equal the  amount  payable  on  demand.  Although  market
premiums paid reflect an additional  value for these low cost deposits,  FAS 107
prohibits  adjusting  fair value for the  expected  benefit  of these  deposits.
Accordingly, the positive effect of such deposits is not included in this table.

OTHER BORROWINGS AND SUBORDINATED DEBENTURE

     The fair values of these  instruments  are based upon  discounted cash flow
analyses using interest rates currently being offered on similar instruments.

OFF-BALANCE-SHEET INSTRUMENTS
     
     The fair values of commercial  loan  commitments  and letters of credit are
based on fees currently  charged to enter into similar  agreements,  taking into
account  the  remaining  terms  of the  agreements.  The  fair  values  of these
off-balance-sheet  instruments  were not  significant  at December  31, 1997 and
1996. Residential mortgage loan commitments are included in determining the fair
value of the  mortgage  loans held for sale.  The fair values of  interest  rate
swaps  are  based on  pricing  models  using  current  assumptions  to arrive at
replacement  cost.  The  estimated  fair value of interest  rate swaps were $6.6
million and $1.6 million at December 31, 1997 and 1996, respectively.

<PAGE>42

(18)   PARENT COMPANY ONLY FINANCIAL STATEMENTS

     Summarized  financial  information  for BOK Financial - Parent Company Only
follows:

Balance Sheets
(In Thousands)                                             December 31,
                                                    ----------------------------
                                                       1997           1996
                                                    ----------------------------
Assets
Cash and cash equivalents                            $       627    $      461
Securities - available for sale                           30,682        33,155
Investment in subsidiaries                               437,553       328,511
Other assets                                               1,747         1,591
- --------------------------------------------------------------------------------
   Total assets                                         $470,609      $363,718
================================================================================
Liabilities and Shareholders' Equity
Short-term borrowings                                  $  32,887  $          -
Other liabilities                                          2,245         3,752
- --------------------------------------------------------------------------------
   Total liabilities                                      35,132         3,752
- --------------------------------------------------------------------------------
Preferred stock                                               23            23
Common stock                                                   1             1
Capital surplus                                          208,327       176,093
Retained earnings                                        218,629       182,892
Treasury stock                                            (2,190)         (428)
Unrealized net gain on securities available for sale      10,691         1,472
Notes receivable                                              (4)          (87)
- --------------------------------------------------------------------------------
   Total shareholders' equity                            435,477       359,966
- --------------------------------------------------------------------------------
   Total liabilities and shareholders' equity           $470,609    $  363,718
================================================================================

<TABLE>
Statements of Earnings
(In Thousands)
                                                          1997       1996         1995
                                                     ---------------------------------------
<S>                                                      <C>        <C>        <C>     
Dividends, interest and fees received from               $70,803    $31,202    $  1,460
   subsidiaries
Other operating revenue                                    2,612        532       1,241
- --------------------------------------------------------------------------------------------
   Total revenue                                          73,415     31,734       2,701
- --------------------------------------------------------------------------------------------
Interest expense                                           3,566        819         273
Personnel expense                                            293          7         407
Professional fees and services                               172        177         212
Contribution of stock to BOk Charitable Foundation         3,638          -           -
Other operating expense                                      106        236         250
- --------------------------------------------------------------------------------------------
   Total expense                                           7,775      1,239       1,142
- --------------------------------------------------------------------------------------------
Income before taxes and equity in undistributed
   income of subsidiaries                                 65,640     30,495       1,559
Federal and state income tax expense (credit)             (3,657)    (4,116)      1,043
- --------------------------------------------------------------------------------------------
Income before equity in undistributed income of           69,297     34,611         516
   subsidiaries
Equity in undistributed income (loss) of subsidiaries     (4,672)    19,516      48,689
- --------------------------------------------------------------------------------------------
Net income                                               $64,625    $54,127     $49,205
============================================================================================
</TABLE>

<PAGE>43

<TABLE>
Statements of Cash Flows
(In Thousands)

                                                          1997          1996           1995
                                                     --------------------------------------------
<S>                                                    <C>             <C>            <C>    
 Cash flows from operating activities:
   Net income                                          $  64,625       $54,127        $49,205
   Adjustments to reconcile net income to net cash
     provided by operating activities:
       Equity in undistributed income (loss) of            4,672       (19,516)       (48,689)
         subsidiaries
       Gain on sale of available-for-sale securities      (1,226)            -         (1,213)
       Contribution of stock to BOk Charitable
         Foundation                                        3,638             -              -
       Change in other assets                               (156)          170           (144)
       Change in other liabilities                        (3,610)       (3,552)         1,403
- -------------------------------------------------------------------------------------------------
Net cash provided by operating activities                 67,943        31,229            562
- -------------------------------------------------------------------------------------------------
Cash flows from investing activities:
   Proceeds from sales of available-for-sale              12,157             -         13,287
     securities
   Purchases of available-for-sale securities            (10,000)      (22,826)       (15,641)
   Investment in subsidiaries                           (104,488)       (6,029)        (3,155)
- -------------------------------------------------------------------------------------------------
Net cash used in investing activities                   (102,331)      (28,855)        (5,509)
- -------------------------------------------------------------------------------------------------
Cash flows from financing activities:
   Increase (decrease) in short-term borrowings           32,887        (2,500)         2,000
   Issuance of preferred, common and treasury stock, net   1,584           311            331
   Dividends on preferred stock                                -            (3)             -
   Payments on notes receivable                               83            67            131
- -------------------------------------------------------------------------------------------------
Net cash provided (used) by financing activities          34,554        (2,125)         2,462
- -------------------------------------------------------------------------------------------------
Net increase (decrease) in cash and cash equivalents         166           249         (2,485)
Cash and cash equivalents at beginning of period             461           212          2,697
- -------------------------------------------------------------------------------------------------
Cash and cash equivalents at end of period                  $627     $     461      $     212
=================================================================================================
Payment of dividends in common stock                   $  28,948       $17,956        $14,346
- -------------------------------------------------------------------------------------------------
Cash paid for interest                                $    3,395     $     827      $     265
- -------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>44

                                                  BOK FINANCIAL CORPORATION



<TABLE>
ANNUAL FINANCIAL SUMMARY - UNAUDITED

Consolidated Daily Average Balances,
Average Yields and Rates


(Dollars in Thousands Except Per Share Data)                             1997
                                                     --------------------------------------------
                                                         Average       Revenue/        Yield/
                                                         Balance       Expense1         Rate
                                                     --------------------------------------------

<S>                                                      <C>             <C>             <C>  
Assets
   Taxable securities                                    $1,560,535      $  97,416       6.24%
   Tax-exempt securities                                    344,112         26,137       7.60
- -------------------------------------------------------------------------------------------------
     Total securities                                     1,904,647        123,553       6.49
- -------------------------------------------------------------------------------------------------
   Trading securities                                         4,785            287       6.00
   Funds sold and resell agreements                          52,911          2,992       5.65
   Loans(2)                                               2,598,718        227,283       8.75
     Less reserve for loan losses                            50,091              -          -
- -------------------------------------------------------------------------------------------------
   Loans, net of reserve                                  2,548,627        227,283       8.92
- -------------------------------------------------------------------------------------------------
     Total earning assets                                 4,510,970        354,115       7.85
- -------------------------------------------------------------------------------------------------
   Cash and other assets                                    579,575
- -------------------------------------------------------------------------------------------------
     Total assets                                        $5,090,545
=================================================================================================
Liabilities and Shareholders' Equity
   Transaction deposits                                  $1,048,060      $  33,091       3.16%
   Savings deposits                                         106,811          2,367       2.22
   Time deposits                                          1,564,236         86,584       5.54
- -------------------------------------------------------------------------------------------------
     Total interest-bearing deposits                      2,719,107        122,042       4.49
- -------------------------------------------------------------------------------------------------
   Other borrowings                                       1,088,470         62,740       5.76
   Subordinated debenture                                    64,374          4,166       6.47
- -------------------------------------------------------------------------------------------------
     Total interest-bearing liabilities                   3,871,951        188,948       4.88
- -------------------------------------------------------------------------------------------------
   Demand deposits                                          752,768
   Other liabilities                                         72,122
   Shareholders' equity                                     393,704
- -------------------------------------------------------------------------------------------------
     Total liabilities and shareholders' equity          $5,090,545
====================================================================

Tax-equivalent Net Interest Revenue                                       $165,167       2.97%
Tax-equivalent Net Interest Revenue to Earning Assets                                    3.66
Tax-equivalent adjustment(1)                                                 9,567
- -------------------------------------------------------------------------------------------------
Net Interest Revenue                                                       155,600
Provision for loan losses                                                    9,026
Other operating revenue                                                    129,699
Other operating expense                                                    195,166
- -------------------------------------------------------------------------------------------------
Income before taxes                                                         81,107
Federal and state income tax                                                16,482
- -------------------------------------------------------------------------------------------------
Net Income                                                               $  64,625
=================================================================================================

Earnings Per Average Common Share Equivalent:
   Net Income
     Basic                                                                   $2.89
- -------------------------------------------------------------------------------------------------
     Diluted                                                                  2.58
- -------------------------------------------------------------------------------------------------
<FN>
(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.
</FN>
</TABLE>

<PAGE>45

<TABLE>

                   1996                                               1995
- ----------------------------------------------------------------------------------------------
   Average       Revenue/       Yield/               Average       Revenue/        Yield/
   Balance       Expense(1)      Rate                Balance       Expense(1)       Rate
- ------------------------------------------        --------------------------------------------


    <S>            <C>            <C>                <C>          <C>              <C>  
    $1,285,333     $  77,588      6.04%              $1,354,949   $  83,076        6.13%
       305,000        22,801      7.48                  253,969      19,113        7.53
- ----------------------------------------------------------------------------------------------
     1,590,333       100,389      6.31                1,608,918     102,189        6.35
- ----------------------------------------------------------------------------------------------
         5,096           340      6.67                    3,672         242        6.59
        29,134         1,630      5.59                   16,509         996        6.03
     2,252,216       196,538      8.73                2,012,574     179,052        8.90
        42,074             -         -                   38,318
- ----------------------------------------------------------------------------------------------
     2,210,142       196,538      8.89                1,974,256     179,052        9.07
- ----------------------------------------------------------------------------------------------
     3,834,705       298,897      7.79                3,603,355     282,479        7.84
- ----------------------------------------------------------------------------------------------
       467,722                                          442,834
- ----------------------------------------------------------------------------------------------
    $4,302,427                                       $4,046,189
==============================================================================================


   $   848,365     $  28,336      3.34%             $   758,594   $  25,276        3.33%
       101,273         2,464      2.43                  118,664       2,957        2.49
     1,555,073        87,266      5.61                1,229,769      69,506        5.65
- ----------------------------------------------------------------------------------------------
     2,504,711       118,066      4.71                2,107,027      97,739        4.64
- ----------------------------------------------------------------------------------------------
       794,715        45,027      5.67                1,023,780      62,086        6.06
             -             -        -                     5,797         352        6.07
- ----------------------------------------------------------------------------------------------
     3,299,426       163,093      4.94                3,136,604     160,177        5.11
- ----------------------------------------------------------------------------------------------
       621,069                                          574,865
        59,678                                           62,361
       322,254                                          272,359
- ----------------------------------------------------------------------------------------------
    $4,302,427                                       $4,046,189
==============================================================================================
                    $135,804      2.85%                            $122,302        2.73%
                                  3.54                                             3.39
                       8,365                                          7,038
- ----------------------------------------------------------------------------------------------
                     127,439                                        115,264
                       4,267                                            231
                     105,312                                         91,146
                     159,028                                        142,206
- ----------------------------------------------------------------------------------------------
                      69,456                                         63,973
                      15,329                                         14,768
- ----------------------------------------------------------------------------------------------
                   $  54,127                                      $  49,205
==============================================================================================



                 $      2.41                                     $     2.19
- ----------------------------------------------------------------------------------------------
                        2.18                                           1.99
- ----------------------------------------------------------------------------------------------
</TABLE>

<PAGE>46

                                                  BOK FINANCIAL CORPORATION

<TABLE>
Quarterly Financial Summary - Unaudited

Consolidated Daily Average Balances,
Average Yields and Rates


  (Dollars in Thousands Except Per Share Data)

                                                                                     Three Months Ended
                                                             ------------------------------------------------------------------
                                                                    December 31, 1997                  September 30, 1997
                                                             --------------------------------    ------------------------------

                                                               Average    Revenue/  Yield/         Average   Revenue/  Yield/
                                                               Balance    Expense(1) Rate          Balance   Expense(1) Rate
                                                             ------------------------------------------------------------------

<S>                                                           <C>          <C>        <C>          <C>         <C>       <C>  
   Assets     
     Taxable securities                                       $1,562,445   $24,408    6.20%        $1,560,418  $24,354   6.19%
     Tax-exempt securities                                       331,793     6,666    7.97            360,461    6,764   7.44
  -----------------------------------------------------------------------------------------------------------------------------
       Total securities                                        1,894,238    31,074    6.51          1,920,879   31,118   6.43
  -----------------------------------------------------------------------------------------------------------------------------
     Trading securities                                            6,203        93    5.95              3,583       53   5.87
     Funds sold and resell agreements                             53,964       724    5.32             49,645      740   5.91
     Loans(2)                                                  2,764,436    60,924    8.74          2,676,237   59,063   8.76
       Less reserve for loan losses                               53,180                               51,165
  -----------------------------------------------------------------------------------------------------------------------------
     Loans, net of reserve                                     2,711,256    60,924    8.92          2,625,072   59,063   8.93
  -----------------------------------------------------------------------------------------------------------------------------
       Total earning assets                                    4,665,661    92,815    7.89          4,599,179   90,974   7.85
  -----------------------------------------------------------------------------------------------------------------------------
     Cash and other assets                                       618,039                              590,260
  -----------------------------------------------------------------------------------------------------------------------------
       Total assets                                           $5,283,700                           $5,189,439
  =============================================================================================================================  

  Liabilities and Shareholders' Equity
     Transaction deposits                                     $1,102,144  $  8,466    3.05%        $1,067,895 $  8,290   3.08%
     Savings deposits                                            106,207       596    2.23            108,104      603   2.21
     Time deposits                                             1,582,538    22,037    5.52          1,533,191   21,489   5.56
  -----------------------------------------------------------------------------------------------------------------------------
       Total interest-bearing deposits                         2,790,889    31,099    4.42          2,709,190   30,382   4.45
  -----------------------------------------------------------------------------------------------------------------------------
     Other borrowings                                          1,050,545    15,169    5.73          1,159,005   17,203   5.89
     Subordinated debenture                                      148,334     2,439    6.52             81,395    1,305   6.36
  -----------------------------------------------------------------------------------------------------------------------------
       Total interest-bearing liabilities                      3,989,768    48,707    4.84          3,949,590   48,890   4.91
  -----------------------------------------------------------------------------------------------------------------------------
     Demand deposits                                             783,508                              761,578
     Other liabilities                                            80,763                               75,732
     Shareholders' equity                                        429,661                              402,539
  -----------------------------------------------------------------------------------------------------------------------------
       Total liabilities and shareholders' equity             $5,283,700                           $5,189,439
  =============================================================================================================================  

  Tax-equivalent Net Interest Revenue1                                     $44,108    3.05%                    $42,084   2.94%
  Tax-equivalent Net Interest Revenue1 to Earning Assets                              3.75                               3.63
  Tax-equivalent adjustment1                                                 2,396                               2,426
  -----------------------------------------------------------------------------------------------------------------------------
  Net Interest Revenue                                                      41,712                              39,658
  Provision for loan losses                                                  3,500                               3,000
  Other operating revenue                                                   33,521                              34,315
  Other operating expense                                                   61,277                              46,720
  -----------------------------------------------------------------------------------------------------------------------------
  Income before taxes                                                       10,456                              24,253
  Federal and state income tax (benefit)                                    (6,362)                              7,857
  -----------------------------------------------------------------------------------------------------------------------------
  Net Income                                                               $16,818                             $16,396
  =============================================================================================================================  

  Earnings Per Average Common Share Equivalent:
     Net Income
       Basic                                                             $     .75                           $     .73
  -----------------------------------------------------------------------------------------------------------------------------
       Diluted                                                                 .67                                 .65
  -----------------------------------------------------------------------------------------------------------------------------

<FN>
(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.
</FN>
</TABLE>



<PAGE>47


<TABLE>

                                          Three Months Ended
- -------------------------------------------------------------------------------------------------------
        June 30, 1997                       March 31, 1997                    December 31, 1996
- -------------------------------    --------------------------------    --------------------------------

  Average    Revenue/  Yield/        Average    Revenue/   Yield/        Average    Revenue/   Yield/
  Balance    Expense(1) Rate         Balance    Expense(1)  Rate         Balance    Expense(1)  Rate
- -------------------------------------------------------------------------------------------------------

     
 <S>          <C>        <C>        <C>          <C>         <C>        <C>          <C>        <C>
 $1,634,264   $25,793    6.33%      $1,484,137   $22,861     6.25%      $1,326,104   $20,042    6.01%
    344,558     6,572    7.65          339,542     6,135     7.33          330,195     6,129    7.38
- -------------------------------------------------------------------------------------------------------
  1,978,822    32,365    6.56        1,823,679    28,996     6.45        1,656,299    26,171    6.29
- -------------------------------------------------------------------------------------------------------
      5,552        83    6.00            3,790        58     6.21            3,870        72    7.40
     57,072       817    5.74           50,967       711     5.66           24,949       356    5.68
  2,535,264    55,850    8.84        2,414,234    51,446     8.64        2,329,981    50,414    8.61
     49,164         -      -            46,771         -        -           45,455         -      -
- -------------------------------------------------------------------------------------------------------
  2,486,100    55,850    9.01        2,367,463    51,446     8.81        2,284,526    50,414    8.78
- -------------------------------------------------------------------------------------------------------
  4,527,546    89,115    7.89        4,245,899    81,211     7.76        3,969,644    77,013    7.72
- -------------------------------------------------------------------------------------------------------
    576,578                            532,386                             475,824
- -------------------------------------------------------------------------------------------------------
 $5,104,124                         $4,778,285                          $4,445,468
=======================================================================================================


 $1,032,622  $  8,348    3.24%     $   988,110  $  7,987     3.28%     $   891,053  $  7,678    3.43%
    109,349       604    2.22          103,542       564     2.21           96,609       595    2.45
  1,576,211    21,625    5.50        1,565,153    21,433     5.55        1,533,447    21,582    5.60
- -------------------------------------------------------------------------------------------------------
  2,718,182    30,577    4.51        2,656,805    29,984     4.58        2,521,109    29,855    4.71
- -------------------------------------------------------------------------------------------------------
  1,151,971    16,700    5.81          990,944    13,668     5.59          887,502    12,707    5.70
     20,000       326    6.54            6,000        96     6.40                -         -      -
- -------------------------------------------------------------------------------------------------------
  3,890,153    47,603    4.91        3,653,749    43,748     4.86        3,408,611    42,562    4.97
- -------------------------------------------------------------------------------------------------------
    776,405                            688,440                             633,441
     63,664                             68,159                              60,023
    373,902                            367,937                             343,393
- -------------------------------------------------------------------------------------------------------
 $5,104,124                         $4,778,285                          $4,445,468
=======================================================================================================

              $41,512    2.98                    $37,463     2.90%                   $34,451    2.75%
                         3.68                                3.58                               3.45
                2,344                              2,401                               2,207
- -------------------------------------------------------------------------------------------------------
               39,168                             35,062                              32,244
                1,500                              1,026                                 357
               31,411                             30,452                              27,534
               45,443                             41,726                              38,315
- -------------------------------------------------------------------------------------------------------
               23,636                             22,762                              21,106
                7,572                              7,415                               6,540
- -------------------------------------------------------------------------------------------------------
              $16,064                            $15,347                             $14,566
=======================================================================================================



            $      .72                         $      .69                          $      .65
- -------------------------------------------------------------------------------------------------------
                   .64                                .62                                 .59
- -------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>48
                            BOK Financial Corporation
                               1996 Annual Report
                                   Appendix A
================================================================================
Net Income
Graph  I
For Year Ended December 31, 1997
(Dollars in Thousands)
             
                            1997        1996         1995       1994        1993
                            ----        ----         ----       ----        ----
 Net Income              $64,625     $54,127      $49,205    $45,065     $37,472
================================================================================
Earnings Per Share   
Graph II
For Year Ended December 31, 1997

                            1997        1996         1995       1994        1993
                            ----        ----         ----       ----        ----
 Earnings per share        $2.58       $2.18        $1.99      $1.81       $1.60
================================================================================
Non Interest Revenue
Graph III
For Year Ended December 31, 1997
(Dollars in Thousands)

                            1997         1996        1995       1994        1993
                            ----         ----        ----       ----        ----
 Mortgage banking 
  revenue                $32,235      $26,236     $20,336    $15,868     $12,564
 Deposit fees and 
  service charge          28,651       24,104      21,152     20,698      20,825
 Trust fees and 
   service charges        24,062       21,638      19,363     17,117      16,824
 Other                    44,751       33,334      30,295     20,681      26,397
================================================================================
Loans
Graph IV
December 31, 1997
(Dollars in Thousands)

                            1997         1996        1995       1994        1993
                            ----         ----        ----       ----        ----
 Commercial           $1,499,400   $1,241,377  $1,086,579   $903,293    $822,569
 Real estate             975,609      912,178     850,766    709,557     690,414
 Consumer                290,084      241,025     257,023    231,203     165,572
================================================================================
Real Estate Loans
Graph V
December 31, 1997
(Dollars in Thousands)
                             1997         1996       1995       1994        1993
                             ----         ----       ----       ----        ----
 Commercial real estate  $375,001     $360,200   $332,024   $285,281    $230,482
 Single family 
   residential            419,139      388,820    395,941    343,969     227,799
 Construction & land 
   development            102,800       67,826     50,389     39,398      42,347
 Loans held for sale       78,669       95,332     72,412     40,909     189,786
================================================================================
Funding
Graph VI
December 31, 1997
(Dollars in Thousands)
                          1997         1996        1995       1994        1993
                          ----         ----        ----       ----        ----
 Deposits             $3,728,079   $3,256,755  $2,937,709 $2,629,574  $2,610,927
 Borrowed funds        1,025,902      946,304     947,806    974,334     263,557
 Capital & subord-
   inated debt           583,833      359,966     301,565    236,902     213,943
================================================================================

<PAGE>49

DIRECTORS

BOK FINANCIAL CORPORATION

W. Wayne Allen(1)
Chairman and CEO
Phillips Petroleum Co.

Keith E. Bailey(1)
Chairman, President and CEO
Williams

James E. Barnes
Chairman and CEO
MAPCO Inc.

Sharon J. Bell
Managing Partner
Rogers and Bell

Glenn A. Cox1
Retired President and COO
Phillips Petroleum Company

Nancy J. Davies(1)
Community Leader

Dr. Robert H. Donaldson(1)
Trustees Professor of Political Science
University of Tulsa

William E. Durrett
Chairman, President and CEO
American Fidelity Corp.

James O. Goodwin(1)
CEO
The Oklahoma Eagle Publishing Co.

D. Joseph Graham(2)
Vice President and CFO
Kaiser-Francis Oil Co.

V. Burns Hargis(1)
Vice Chairman
BOk Financial Corp. and
Bank of Oklahoma, N.A.

Eugene A. Harris(2)
Executive Vice President
BOk Financial Corp. and
Bank of Oklahoma, N.A.

E. Carey Joullian, IV(1)
President
Mustang Fuel Corporation

George B. Kaiser
Chairman of the Board
BOk Financial Corp. and
Bank of Oklahoma, N.A.

Robert J. LaFortune
Personal Investments

Philip C. Lauinger, Jr.
Chairman
Lauinger Publishing Company

David R. Lopez(1)
President - Oklahoma
Southwestern Bell Telephone Co.

Stanley A. Lybarger(1)
President and CEO
BOk Financial Corp. and
Bank of Oklahoma, N.A.

John L. Massey(4)
Chairman of the Board
Durant Bank and Trust Co.

Frank A. McPherson(1)
Retired Chairman and CEO
Kerr-McGee Oil Corporation

Steven E. Moore(4)
Chairman, President and CEO
OGE Energy Corp.

J. Larry Nichols(1)
CEO and President
Devon Energy Corporation

Robert L. Parker, Sr.
Chairman
Parker Drilling Company

James W. Pielsticker(1)
President
Arrow Trucking Co.

E.C. Richards(1)
SVP of Operations
Sooner Pipe and Supply Corp.

James A. Robinson
Personal Investments

L. Francis Rooney, III(1)
Chairman and CEO
Manhattan Construction Company

Wayne D. Stone(4) 
Chairman, President and CEO 
Bank of Arkansas, N.A.

David J. Tippeconnic(4)
President and CEO
Citgo Petroleum Corporation

Tom E. Turner(4)
Chairman and CEO Bank of Texas, N.A.

James A. White(2)
Executive Vice President and CFO
BOk Financial Corp. and
Bank of Oklahoma, N.A.

Robert L. Zemanek(3)
President, Energy Delivery
Central and South West Services, Inc.



1 Director of BOk Financial Corp. and Bank of Oklahoma, N.A.
2 Director of Bank of Oklahoma, N.A.
3 Director of BOk Financial Corp. and Bank of Texas, N.A.
4 Advisory pending election at shareholders meeting April 28

<PAGE>50


BANK OF TEXAS, N.A.

C. Thomas Abbott(2)
Vice Chairman
Bank of Texas, N.A.

Charles A. Angel(2)
Vice Chairman
Bank of Texas, N.A.

C. Fred Ball(3)
President
Bank of Texas, N.A.

C. Huston Bell(2)
President
The Vantage Companies

Edward O. Boshell, Jr. (3)
Partner
Columbia General Investments, LP

Ben R. Briggs(3)
Owner, Ben R. Briggs

R. Neal Bright(3)
Managing Partner
Bright and Bright CPA's

Dudley Chambers(3)
Partner, Jackson & Walker, L.L.P.

Edward F. Doran, Sr.(3)
President
Doran Chevrolet, Inc.

James J. Ellis(3)
Partner
Ellis/Rosier Associates

R. William Gribble, Jr. (2)
President
Gribble Oil Corporation

J. T. Hairston, Jr. (3)
Retired President
Cullum Companies

Jerry Lastelick(3)
Attorney
Lastelick, Anderson and Arneson

Stanley A. Lybarger(3)
President and CEO BOK Financial Corp.

Donald J. Malouf (2)
Partner
Malouf Lynch Jackson
Kessler and Collins Attorneys

Jon L. Mosle, Jr. (3)
Director, SW Securities,
Westwood Trust, Aquilla
Gas Pipe Line and Wiser Oil

Michael A. McBee(3)
Owner
McBee Operating Co.

Mrs. Rozene Pride1
Investor
Cecca Productions, Inc.

William E. Stahnke(3)
Vice Chairman
Bank of Texas, N.A.

James G. Storey(2)
Retired EVP and Auditor
FNB Park Cities

Mrs. Jere W. Thompson(3)
Civic Leader

Tom E. Turner(3) 
Chairman and CEO Bank of Texas, N.A.

John C. Vogt(2)
District Manager
International Supply Co.

James A. White(1)
Executive Vice President and CFO
BOK Financial Corp.

Robert L. Zemanek(3)
President, Energy Delivery
Central and South West Services, Inc.


1 Park Cities Bancshares, Inc.
2 Bank of Texas, N.A.
3 Park Cities Bancshares, Inc/Bank of Texas, N.A.



BANK OF ARKANSAS, N.A.


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

Gerald Jones
President
Jones Olds-GMC-Buick, Inc.


Norman W. Smith
Executive Vice President
Bank of Oklahoma, N.A.

Wayne D. Stone
Chairman, President and CEO 
Bank of Arkansas, N.A.

Jerry D. Sweetser
Sweetser Properties, Inc.


<PAGE>51

- --------------------------------------------------------------------------------
OPERATING SUBSIDIARIES
- --------------------------------------------------------------------------------

BANK OF ARKANSAS, N.A.
Fayetteville
3500 N. College
(501)973-2660

BANK OF OKLAHOMA, N.A.
Oklahoma City
Bank of Oklahoma Plaza
Robinson at Robert. S. Kerr
(405)272-2000

Tulsa
Bank of Oklahoma Tower
(918)588-6000


BANK OF TEXAS, N.A.
Dallas
5956 Sherry Lane, Ste. 1800
(214)987-8880

6215 Hillcrest Avenue
(214)525-5000


- --------------------------------------------------------------------------------
Other Operating Subsidiaries
- --------------------------------------------------------------------------------

BANK OF OKLAHOMA, TRUST DIVISION
Oklahoma City
Commerce Center
9520 N. May
(405) 936-3700

Tulsa
Bank of Oklahoma Tower
One Williams Center, 10th Floor
(918) 588-6437


BOSC, INC
3045 S. Harvard, Tulsa
(918)     746-5720

SOUTHWEST
TRUST COMPANY
Commerce Center
9520 N. May, 2nd Floor
(405) 936-3970


BANK OF TEXAS,
TRUST DIVISION
Dallas
5956 Sherry Lane, Ste. 1800
(214) 987-8800

Sherman
2009 Independence Dr.
(903) 813-5100


BOK MORTGAGE
Lawton
2602 W. Gore Blvd.
(580) 250-0070

Oklahoma City
5015 N. Pennsylvania
(405) 879-8700

Tulsa
Copper Oaks
7060 S. Yale, Suite 100
(918)     488-7140

Pine and Lewis
1604 N. Lewis
(918) 588-8608


Owasso
413 E. 2nd Ave.
(918)     588-8650


BANK OF ARKANSAS
MORTGAGE GROUP
Bentonville
1706 S.E. Walton Blvd., Ste. B
(501) 271-6800

Fayetteville
1130 Millsap Road
(501) 973-2600

Siloam Springs
1270 Hwy 412 West, Unit J
(501) 549-3675


- --------------------------------------------------------------------------------
Major Customer Service Offices
- --------------------------------------------------------------------------------

BUSINESS BANKING
CENTERS
Dallas
2650 Royal Lane
(972) 443-2800

Oklahoma City
Commerce Center
9520 N. May
(405)     936-3700

Tulsa
Brookside Banking Center
3237 S. Peoria
(918)     746-7400


CONSUMER BANKING
Oklahoma City
Bank of Oklahoma Plaza
Robinson at Robert. S. Kerr
(405)     272-2000

Tulsa
Bank of Oklahoma Tower
(918) 588-6000
CORPORATE BANKING
Albuquerque
4263 Montgomery NE,
Ste 210
(505) 884-2000

Dallas
5956 Sherry Lane, Ste. 1800
(214) 987-8880

Fayetteville
3500 N. College
(501)     973-2660

Oklahoma City
Bank of Oklahoma Plaza
Robinson at Robert S. Kerr
(405)     272-2000

Tulsa
Bank of Oklahoma Tower
(918)     588-6000


BANCOKLAHOMA
INVESTMENT CENTER
Tulsa
Ranch Acres
3045 S. Harvard, Suite 101
(918)  746-5770  Investment  Center  Financial  Consultants  are  located in all
Consumer, Community and Private Financial Services locations statewide.


PRIVATE FINANCIAL
SERVICES
Bartlesville
3815 S.E. Frank Phillips Blvd.
(918)     335-5349

Dallas
6701 Preston Road
(214) 525-7600

6215 Hillcrest Avenue
(214)     525-5000

Enid
2308 N. Van Buren
(580)     548-8523


Oklahoma City
Commerce Center
9520 N. May, 2nd Floor
(405) 936-3900

Tulsa
Midtown
2021 S. Lewis, Suite 200
(918) 748-7244

Downtown
320 S. Boston
(918) 588-6214

Brookside
3237 S. Peoria
(918) 746-7487

61st & Yale
6036 S. Yale
(918) 493-5210

<PAGE>52

EXECUTIVE OFFICERS


George B. Kaiser
Chairman of the Board

Stanley A. Lybarger
President, Chief Executive Officer

V. Burns Hargis
Vice Chairman

Eugene A. Harris
Executive Vice President
Commercial Banking

James A. White
Executive Vice President
Chief Financial Officer

Frederic Dorwart
Secretary

Lowell E. Faulkenberry
Senior Vice President
Director, Risk Management

John C. Morrow
Senior Vice President
Controller, Financial Accounting

BANK OF OKLAHOMA, N.A.

Mark W. Funke
President, Oklahoma City

H. James Holloman
Executive Vice President
Trust Division

David L. Laughlin
President
BOk Mortgage

Norman W. Smith
Executive Vice President
Consumer Banking

Charles D. Williamson
Executive Vice President
Capital Markets


BANK OF TEXAS, N.A.

Tom E. Turner
Chairman and CEO

Charles T. Abbott
President, Vice Chairman

Charles A. Angel, Jr.
Vice Chairman

William E. Stahnke
Vice Chairman

C. Fred  Ball, Jr.
President

Steven D. Poole
President, Trust


BANK OF ARKANSAS, N.A.

Wayne D. Stone
Chairman, President and CEO


<PAGE>53

SHAREHOLDER INFORMATION


         BOK Financial is a bank holding company providing financial and related
services to individuals  and businesses.  It is primarily  engaged in commercial
and consumer banking through its two banking  subsidiaries.  In conducting their
businesses,  the banks receive deposits,  make loans, provide trust,  investment
and corporate  services,  operate the TransFund  interchange of automated teller
machines and generally engage in all aspects of commercial and consumer banking.


   CORPORATE HEADQUARTERS
   Bank of Oklahoma Tower
   P.O. Box 2300
   Tulsa, Oklahoma 74192
   (918) 588-6000

   INDEPENDENT AUDITORS
   Ernst & Young LLP
   Bank of Oklahoma Tower
   Tulsa, Oklahoma 74172
   (918) 560-3600

   LEGAL COUNSEL
   Frederic Dorwart Lawyers
   Old City Hall
   124 E. Fourth St.
   Tulsa, Oklahoma 74103-5010
   (918) 583-9922

   COMMON SHARES:
   Traded Over the Counter,
   NASDAQ Symbol:  BOKF

   MARKET MAKERS:
   Herzog, Heine, Geduld, Inc.
   Smith Barney
   Southwest Securities, Inc.


   TRANSFER AGENT AND REGISTRAR 
   The Bank of New York 
   (800) 524-4458

   Address Shareholders Inquiries to:
   Shareholder Relations Department-11E
   P.O. Box 11258
   Church Street Station
   New York, NY 10286

   E-Mail Address:
   [email protected]

   Send Certificates for Transfer
   and Address Changes to:
   Receive and Deliver Department - 11W
   P.O. Box 11002
   Church Street Station
   New York, NY 10286



         Copies of BOK Financial  Corporation's  Annual Report to  Shareholders,
Form 10-K to the Securities and Exchange  Commission and other public  financial
information  are  available  without  charge  upon  written  request.  Analysts,
shareholders  and  other  investors  seeking  financial  information  about  BOK
Financial  Corporation  are invited to contact  James A. White,  Executive  Vice
President  & Chief  Financial  Officer,  (918)  588-6752.  News media and others
seeking  general  information  should  contact Becky J. Frank,  Vice  President,
Public Relations manager, (918) 588-6831.


<PAGE>




                             BANK OF ARKANSAS, N.A.
                      P.O. Box 1407, Fayetteville, AR 72703
                                 (501) 973-2660


                             BANK OF OKLAHOMA, N.A.
                             Bank of Oklahoma Tower
                         P.O. Box 2300, Tulsa, OK 74192
                                 (918) 588-6000

                             Bank of Oklahoma Plaza
                     P.O. Box 24128, Oklahoma City, OK 73124
                                 (405) 272-2000


                      
                               BANK OF TEXAS, N.A.
                  formerly First National Bank of Park Cities,
                   First Texas Bank and Alliance Trust Company

                     6215 Hillcrest Avenue, Dallas, TX 75205
                                 (214) 525-5000













                                              (C)1998 BOK Financial Corporation




                            BOK FINANCIAL CORPORATION

                                   EXHIBIT 21

                         SUBSIDIARIES OF THE REGISTRANT

                              BANKING SUBSIDIARIES
                              --------------------
                     Bank of Oklahoma, National Association
                     Bank of Arkansas, National Association
                       First National Bank of Park Cities
                                First Texas Bank

                 OTHER SUBSIDIARIES OF BOK FINANCIAL CORPORATION
                 -----------------------------------------------
                         Alliance Securities Corporation
                        BOK Capital Services Corporation
                            BOK Plaza Associates, LLC
             KCI Leasing Partners I, an Oklahoma Limited Partnership
            KCI Leasing Partners II, an Oklahoma Limited Partnership
            KCI Leasing Partners III, an Oklahoma Limited Partnership
                          Park Cities Bancshares, Inc.
                             Park Cities Corporation
             Sabre 1996 Partnership, an Oklahoma Limited Partnership

                     SUBSIDIARIES OF BANK OF OKLAHOMA, N.A.
                     --------------------------------------
                          Affiliated BancServices, Inc.
                      Affiliated Financial Holding Company
                   Affiliated Financial Insurance Agency, Inc.
                   Affiliated Financial Life Insurance Company
                  Alliance Trust Company, National Association
                         BancOklahoma Agri-Service Corp.
                           BancOklahoma Mortgage Corp.
                               BOK Delaware, Inc.
                              BOK Real Estate Trust
                                   BOSC, Inc.
                              CVV Management, Inc.
                CVV Partnership, an Oklahoma General Partnership
                        Cottonwood Valley Ventures, Inc.
                   FGBSA Securities Brokerage (Oklahoma), Inc.
                            Investment Concepts, Inc.
                           Pacesetter Leasing Company
                             Southwest Trust Company
                              Steven L. Smith Corp.
                               115 E. Fifth Corp.

    All subsidiaries are incorporated in Oklahoma, with the exception of Bank
   of Oklahoma, National Association, which is chartered by the United States
        of America; Affiliated Financial Life Insurance Company, which is
    incorporated in Arizona; First National Bank of Park Cities, First Texas
     Bank, Alliance Trust Company and FGBSA Securities Brokerage (Oklahoma),
   Inc., which are incorporated in Texas; Brookside Bancshares, BOK Delaware,
     Inc. and BOK Real Estate Trust, which are incorporated in Delaware; and
           Bank of Arkansas, N.A., which is incorporated in Arkansas.




                         CONSENT OF INDEPENDENT AUDITORS

We consent to the  incorporation  by reference  of our report dated  January 27,
1998,  with respect to the  consolidated  financial  statements of BOK Financial
Corporation  incorporated  by reference in the annual report (Form 10-K) for the
year ended December 31, 1997, in the following registration statements:

     Registration  Statement (Form S-8, No. 33-44121)  pertaining to the Reoffer
     Prospectus of the Bank of Oklahoma Master Thrift Plan and Trust Agreement.

     Registration  Statement (Form S-8, No. 33-44122)  pertaining to the Reoffer
     Prospectus of the BOK Financial Corporation 1991 Special Stock Option Plan.

     Registration  Statement (Form S-8, No. 33-55312)  pertaining to the Reoffer
     Prospectus of the BOK Financial Corporation 1992 Stock Option Plan.

     Registration  Statement (Form S-8, No. 33-70102)  pertaining to the Reoffer
     Prospectus of the BOK Financial Corporation 1993 Stock Option Plan.

     Registration  Statement (Form S-8, No. 33-79834)  pertaining to the Reoffer
     Prospectus of the BOK Financial Corporation 1994 Stock Option Plan.

     Registration  Statement (Form S-8, No. 33-79836)  pertaining to the Reoffer
     Prospectus of the BOK Financial  Corporation  Directors' Stock Compensation
     Plan.

     Registration  Statement (Form S-8, No. 33-32642)  pertaining to the Reoffer
     Prospectus of BOK Financial Corporation 1997 Stock Option Plan.



/s/ Ernst & Young LLP
Tulsa, Oklahoma 
March 23, 1998



<TABLE> <S> <C>


<ARTICLE> 9
<LEGEND>
This schedule contains summary financial information extracted from the BOK
Financial Corporation's 10-K for the period ended December 31, 1997 and is
qualified in its entirety by reference to such financial statements.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                         371,321
<INT-BEARING-DEPOSITS>                               0
<FED-FUNDS-SOLD>                                18,005
<TRADING-ASSETS>                                 4,999
<INVESTMENTS-HELD-FOR-SALE>                  1,749,411
<INVESTMENTS-CARRYING>                         213,111
<INVESTMENTS-MARKET>                           214,125
<LOANS>                                      2,765,093
<ALLOWANCE>                                     53,101
<TOTAL-ASSETS>                               5,399,642
<DEPOSITS>                                   3,728,079
<SHORT-TERM>                                   906,458
<LIABILITIES-OTHER>                             61,828
<LONG-TERM>                                    267,800
                                0
                                         23
<COMMON>                                             1
<OTHER-SE>                                     435,453
<TOTAL-LIABILITIES-AND-EQUITY>               5,399,642
<INTEREST-LOAN>                                227,044
<INTEREST-INVEST>                              114,225
<INTEREST-OTHER>                                 2,992
<INTEREST-TOTAL>                               344,548
<INTEREST-DEPOSIT>                             122,042
<INTEREST-EXPENSE>                             188,948
<INTEREST-INCOME-NET>                          155,600
<LOAN-LOSSES>                                    9,026
<SECURITIES-GAINS>                             (1,329)
<EXPENSE-OTHER>                                195,166
<INCOME-PRETAX>                                 81,107
<INCOME-PRE-EXTRAORDINARY>                      64,625
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    64,625
<EPS-PRIMARY>                                     2.89
<EPS-DILUTED>                                     2.58
<YIELD-ACTUAL>                                    3.66
<LOANS-NON>                                     18,767
<LOANS-PAST>                                    17,971
<LOANS-TROUBLED>                                   207
<LOANS-PROBLEM>                                 57,000
<ALLOWANCE-OPEN>                                45,148
<CHARGE-OFFS>                                    9,203
<RECOVERIES>                                     5,605
<ALLOWANCE-CLOSE>                               53,101
<ALLOWANCE-DOMESTIC>                            53,101
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                         14,081
        


</TABLE>

<TABLE> <S> <C>


<ARTICLE> 9
<RESTATED>
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>                     <C>                     <C>
<PERIOD-TYPE>                   9-MOS                   6-MOS                   3-MOS                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997             DEC-31-1997             DEC-31-1996
<PERIOD-END>                               SEP-30-1997             JUN-30-1997             MAR-31-1997             DEC-31-1996
<CASH>                                         340,635                 373,433                 342,913                 322,791
<INT-BEARING-DEPOSITS>                             100                     100                     100                       0
<FED-FUNDS-SOLD>                                37,850                  78,432                  76,387                  44,760
<TRADING-ASSETS>                                 2,555                   5,974                   3,887                   6,454
<INVESTMENTS-HELD-FOR-SALE>                  1,719,554               1,713,075               1,787,637               1,459,122
<INVESTMENTS-CARRYING>                         214,703                 202,716                 202,750                 198,408
<INVESTMENTS-MARKET>                           214,980                 202,272                 202,325                 199,549
<LOANS>                                      2,769,998               2,629,243               2,499,613               2,394,580
<ALLOWANCE>                                     52,393                  49,871                  48,517                  45,148
<TOTAL-ASSETS>                               5,378,152               5,292,170               5,184,512               4,620,700
<DEPOSITS>                                   3,592,106               3,546,309               3,598,698               3,256,755
<SHORT-TERM>                                 1,133,515                 467,748               1,025,367                 843,604
<LIABILITIES-OTHER>                             85,585                  69,106                  66,118                  57,675
<LONG-TERM>                                    150,708                 799,547                 123,153                 102,700
                                0                       0                       0                       0
                                         23                      23                      23                      23
<COMMON>                                             1                       1                       1                       1
<OTHER-SE>                                     416,214                 389,436                 371,176                 359,942
<TOTAL-LIABILITIES-AND-EQUITY>               5,378,152               5,292,170               5,184,512               4,620,700
<INTEREST-LOAN>                                166,222                 107,199                  51,355                 196,309
<INTEREST-INVEST>                               85,446                  56,714                  26,686                  92,253
<INTEREST-OTHER>                                 2,461                   1,528                     769                   1,630
<INTEREST-TOTAL>                               254,129                 165,582                  78,810                 290,532
<INTEREST-DEPOSIT>                              90,943                  60,561                  29,984                 118,066
<INTEREST-EXPENSE>                             140,241                  91,352                  43,748                 163,093
<INTEREST-INCOME-NET>                          113,888                  74,230                  35,062                 127,439
<LOAN-LOSSES>                                    5,526                   2,526                   1,026                   4,267
<SECURITIES-GAINS>                                 871                      62                     262                 (2,607)
<EXPENSE-OTHER>                                133,889                  87,169                  41,726                 159,028
<INCOME-PRETAX>                                 70,651                  46,398                  22,762                  69,456
<INCOME-PRE-EXTRAORDINARY>                      70,651                  46,398                  15,347                  54,127
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                    47,807                  31,411                  15,347                  54,127
<EPS-PRIMARY>                                     2.14                    1.40                     .69                    2.41
<EPS-DILUTED>                                     1.91                    1.26                     .62                    2.18
<YIELD-ACTUAL>                                    3.63                    3.63                    3.58                    3.54
<LOANS-NON>                                     23,182                  23,694                  20,254                  18,835
<LOANS-PAST>                                    20,551                  17,976                  17,838                  18,816
<LOANS-TROUBLED>                                     0                       0                       0                       0
<LOANS-PROBLEM>                                 64,049                  62,220                  45,519                  40,000
<ALLOWANCE-OPEN>                                45,148                  48,517                  45,148                  38,287
<CHARGE-OFFS>                                    5,177                   1,422                   1,240                   6,510
<RECOVERIES>                                     4,371                   1,276                   1,058                   9,104
<ALLOWANCE-CLOSE>                               52,393                  49,871                  48,517                  45,148
<ALLOWANCE-DOMESTIC>                            52,393                  49,871                  48,517                  45,148
<ALLOWANCE-FOREIGN>                                  0                       0                       0                       0
<ALLOWANCE-UNALLOCATED>                              0                       0                       0                   9,225
        

</TABLE>


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