BOK FINANCIAL CORP ET AL
S-3, 1998-10-14
NATIONAL COMMERCIAL BANKS
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   As filed with the Securities and Exchange Commission on October 12, 1998
                                              Registration No. 33-___________

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                ----------------

                                    FORM S-3
             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                                ----------------

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

 Oklahoma                                                            73-1373454
 (State or other jurisdiction                                  (I.R.S. Employer
 incorporation or organization)                              Identification No.)

                             Bank of Oklahoma Tower
                         Boston Avenue at Second Street
                              Tulsa, Oklahoma 74172
                                 (918) 588-6000
                   (Address, including zip code, and telephone
              number, including area code of registrant's principal
                               executive offices)

                                 James A. White,
              Executive Vice President and Chief Financial Officer
                            BOK FINANCIAL CORPORATION
                             Bank of Oklahoma Tower
                         Boston Avenue at Second Street
                              Tulsa, Oklahoma 74172
                                 (918) 588-6416
            (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)
                                 With copies to:
                                Frederic Dorwart
                                  Old City Hall
                             124 East Fourth Street
                              Tulsa, Oklahoma 74103
                                 (918) 583-9922
         Approximate date of commencement of proposed issuance to the public: As
soon as practicable after this Registration Statement becomes effective.
                               -------------------
         If any of the  securities  being  registered  on  this  Form  are to be
offered  on a  delayed  or  continuous  basis  pursuant  to Rule 415  under  the
Securities Act of 1933,  other than  securities  offered only in connection with
dividend or interest reinvestment plans, check the following box. [X]
                         CALCULATION OF REGISTRATION FEE

                                      Proposed         Proposed
                                       maximum          maximum
  Title of each       Amount          offering         aggregate      Amount of
class of securities     to be          price            offering    Registration
to be registered      registered 1/   per share 1/      price 1/        fee2/  
- --------------------------------------------------------------------------------
Debt Securities       $250,000,000      100% (1)     $250,000,000      $73,750

1/ There are being registered  hereunder such indeterminate  principal amount of
Senior Debt Securities as shall have an aggregate  initial offering price not to
exceed  $250,000,000.  The proposed maximum initial offering price per unit will
be determined, from time to time, by the Company in connection with the issuance
by the Company of the Securities registered hereunder. 

2/  Calculated  pursuant to Rule 457(o) of the rules and  regulations  under the
Securities Act of 1933.

================================================================================
    The  Registrant  hereby amends this  Registration  Statement on such date or
dates as may be necessary to delay its effective date until the Registrant shall
file a further  amendment  which  specifically  states  that  this  Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the  Securities  Act of 1933 or until the  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.

                                                       
<PAGE>i

                                                           
                            BOK FINANCIAL CORPORATION

         Cross  Reference  Sheet Showing  Location in Prospectus of  Information
Required to be included in Prospectus in Response to Items of Form S-3, Pursuant
to Item 501 of Regulation S-K.

Item #  Form S-3 Item                                   Caption in Prospectus

   1. Forepart of Registration Statement
      and Outside Front Cover of Prospectus...........Forepart and Outside Front
                                                      Cover

   2. Inside Front and Outside Back
      Cover Pages of Prospectus.......................Inside Front and Outside
                                                      Back Cover Pages;
                                                      Table of Contents

   3. Summary Information, Risk Factors
      and Ratio of Earnings to Fixed Charges..........Summary Information 
                                                      Respecting BOK Financial
                                                      Corporation; Risk Factors;
                                                      Ratio of Earnings
                                                      to Fixed Charges

   4. Use of Proceeds.................................Use of Proceeds

   5. Determination of Offering Price.................Outside Front Cover Page; 
                                                      Plan of  Distribution

   6. Dilution........................................Not Applicable

   7. Selling Security Holders........................Not Applicable

   8. Description of Securities to be Registered......Description of Senior Debt
                                                      Securities

   9. Plan of Distribution............................Plan of Distribution

   10.Interest of Named Experts and Counsel...........Legal Opinions; Experts

   11.Material Changes................................Not Applicable

   12.Incorporation of Certain
      Information by Reference........................Where You Can Find More 
                                                      Information

   13.Disclosure of Commission Position on
      Indemnification for Securities Act Liabilities..Not Applicable;See,Part II

                                                       
<PAGE>ii

                                                                         
                  SUBJECT TO COMPLETION; PRELIMINARY PROSPECTUS
                            DATED OCTOBER 12, 1998
                            BOK FINANCIAL CORPORATION
                                     Issuer
   [BOKF LOGO]         $250,000,000 Senior Debt Securities

- --------------------------------------------------------------------------------
Consider carefully the risk factors beginning on page 5 in this prospectus.
- --------------------------------------------------------------------------------

The Debt  Securities  will not be deposits and are not insured or  guaranteed by
the Federal Deposit Insurance Corporation or any other governmental agency.

The securities do not represent the obligations of any bank.

This  prospectus may be used to offer and sell any series of securities  only if
accompanied by the prospectus supplement for that series.
BOK Financial Corporation will:

         **   issue one or more series of Senior Debt Securities

         **   in the form of debentures, notes, or other unsecured
              evidences of indebtedness

         **   in an amount not to exceed a total of $250,000,000

         **   in definitive or global form

A  prospectus  supplement  will  further  define the Senior Debt  Securities  by
stating:

         **   how the Senior Debt Securities will be sold

         **   the initial offering price

         **   the number of Senior Debt Securities being offered

          **  the names of any underwriters and agents and their compensation

          **  the net proceeds to BOK Financial of the sale

          **  the use BOK Financial will make of the proceeds

          **  the   terms  of  the   Senior   Debt Securities  including  the 
              interest rates, maturities, redemption rights, puts and other 
              features

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

     NEITHER THE  SECURITIES AND EXCHANGE  COMMISSION  NOR ANY STATE  SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE  SECURITIES,  OR PASSED UPON THE
ADEQUACY OR ACCURACY OF THE PROSPECTUS.  ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE. 

                          ----------------------------
          The  common  stock of BOK  Financial  is  listed on the  NASDAQ  Stock
Exchange under the trading  symbol  "BOKF".  BOK Financial does not plan to list
the Senior Debt Securities on NASDAQ or any other exchange.

                                                        

<PAGE>iii


                                TABLE OF CONTENTS
                                                                     Page

ABOUT THIS PROSPECTUS................................................1

WHERE YOU CAN FIND MORE INFORMATION..................................1

SUMMARY INFORMATION RESPECTING BOK FINANCIAL CORPORATION.............2

RISK FACTORS.........................................................3

DESCRIPTION OF SENIOR DEBT SECURITIES................................6

GLOBAL SECURITIES....................................................15

USE OF PROCEEDS......................................................17

PLAN OF DISTRIBUTION.................................................18

RATIO OF EARNINGS TO FIXED CHARGES...................................19

VALIDITY OF THE SENIOR DEBT SECURITIES...............................19

EXPERTS..............................................................19


                                                       

<PAGE>1

                              ABOUT THIS PROSPECTUS

     This prospectus is part of a registration  statement that we filed with the
SEC utilizing a "shelf" registration  process.  Under this shelf process, we may
sell any  combination of the securities  described in this  prospectus in one or
more  offerings up to a total dollar  amount of  $250,000,000.  This  prospectus
provides you with a general  description  of the  securities we may offer.  Each
time we sell  securities,  we will  provide a  prospectus  supplement  that will
contain specific  information  about the terms of that offering.  The prospectus
supplement  may  also  add,  update  or  change  information  contained  in this
prospectus.  You should read both this prospectus and any prospectus  supplement
together with additional  information described under the heading "WHERE YOU CAN
FIND MORE INFORMATION."

       We are  complying  with  the  SEC's  plain  English  program.  This is an
initiative  launched by the SEC to make  prospectuses and other information more
understandable to the general investor.  To see more detail, you should read the
exhibits filed with this registration statement.

                       WHERE YOU CAN FIND MORE INFORMATION

         We file annual,  quarterly and special  reports,  proxy  statements and
other  information  with the SEC.  You may read and copy any document we file at
the SEC's  public  reference  rooms at Room  1024,  Judiciary  Plaza,  450 Fifth
Street,  N.W.,  Washington,  D.C.  20549,  and at the SEC's Fort Worth  Regional
Offices at 503 U. S.  Courthouse,  10th and Lamar  Streets,  Forth Worth,  Texas
76102 and at Listing Company Information, NASDAQ Stock Exchange, 9801 Washington
Blvd.,  Gaithersburg,  Maryland 20878.  You may send for a copy of such material
for a fee by writing the Securities  and Exchange  Commission  Public  Reference
Section,  Room 1024, 450 Fifth Street,  N.W.,  Washington,  D.C. 20549.  Our SEC
filings are also available to the public over the Internet at the SEC's web site
at  http://www.sec.gov.  Please  call  the  SEC at  1-800-SEC-0330  for  further
information on the public reference rooms and Internet access.

         The SEC allows us to "incorporate by reference" the information we file
with them,  which means that we can  disclose  important  information  to you by
referring you to those documents.  The information  incorporated by reference is
an important part of this  prospectus,  and information  that we file later with
the SEC will automatically update and supersede this information. We incorporate
by reference the documents listed below and any future filings made with the SEC
under Sections 13(a), 13(c), 14, or 15(d) of the Securities Exchange Act of 1934
until we sell all of the securities.

          **   Annual  Report of the  Company on Form 10-K for the  fiscal  year
               ended December 31, 1997; and

          **   Quarterly Report on Form 10-Q for the fiscal quarters ended March
               31, 1998 and June 30, 1998.

You may request a copy of these filings at no cost, by writing or telephoning us
at the following address:

                                                       

<PAGE>2


         Chief Financial Officer
         BOK Financial Corporation
         Bank of Oklahoma Tower
         Tulsa, Oklahoma 74172
         (918) 588-6752
         [email protected]

         You should rely only on the  information  incorporated  by reference or
provided in this prospectus or any prospectus supplement. We have not authorized
anyone  else to provide  you with  different  information.  We are not making an
offer of these  securities  in any state where the offer is not  permitted.  You
should not assume that the  information  in this  prospectus  or any  prospectus
supplement  is accurate as of any date other than the date on the front of those
documents.

                               SUMMARY INFORMATION
                                   RESPECTING
                            BOK FINANCIAL CORPORATION

          **   Our home office is Tulsa, Oklahoma

          **   Our principal  subsidiaries  are Bank of Oklahoma  N.A.,  Bank of
               Texas  N.A.,  Bank of  Arkansas  N.A.,  BOSC,  Inc,  BOK  Capital
               Services Corporation, and Bank of Texas Trust Company, N.A.

          **   We have a total of 2,448 employees

          **   We offer commercial,  consumer and correspondent banking services
               and investment and money market services

          **   Our BOk Trust Division  offers trust services,  employee  benefit
               services, investment advice, and asset management

          **   Our BOk  Mortgage  Division  originates  and  services  home loan
               mortgages

          **   Our BOSC  subsidiary is a registered NASD  broker-dealer  with 91
               sales representatives

          **   The Leo Oppenheim Division of BOSC underwrites  municipal revenue
               bonds,  asset-backed  securities,  and  commercial  paper and has
               eight investment bankers and sales representatives

          **   Approximately 92 percent of our earnings are derived from Bank of
               Oklahoma

                                                       

<PAGE>3


          **   Bank of Oklahoma is headquartered  in Oklahoma,  has 62 locations
               in Oklahoma, 2,302 employees, and approximately $3,486,957,000 in
               deposits.

          **   Bank of Texas is  headquartered  in  Dallas,  Texas  and has five
               locations,  131  employees,  and  approximately  $371,889,000  in
               deposits.

          **   Bank of Arkansas is headquartered  in Fayetteville,  Arkansas and
               has four locations, 36 employees,  and approximately  $86,011,000
               in deposits.

          **   We have agreed, subject to regulatory approval, to organize a new
               New Mexico national bank to be headquartered in Albuquerque,  New
               Mexico and called Bank of Albuquerque, with 17 bank branches, 230
               employees, and approximately $500 million in deposits.

          **   We expect to close the New Mexico transaction in December, 1998.

                                  RISK FACTORS

THE SENIOR DEBT SECURITIES INVOLVE A RISK OF LOSS OF PRINCIPAL AND INTEREST. YOU
SHOULD  CONSIDER THE FOLLOWING RISK FACTORS IN DECIDING  WHETHER TO PURCHASE THE
SENIOR DEBT SECURITIES.

Risk of Competition

          **   The banking industry is increasingly competitive

          **   In   particular,   the  Oklahoma   banking   industry  is  highly
               competitive  and  approximately  92% of our  earnings are derived
               from Bank of Oklahoma

          **   In 1997,  NationsBank  (now Bank America) and BancOne entered the
               Oklahoma market

          **   We have to compete with numerous other small and large, local and
               national  savings and loan  associations,  banks,  credit unions,
               trust companies, broker-dealers, and underwriters

Risk of Supervision and Regulation

          **   We and our subsidiaries are extensively regulated under both
                  federal and state law,  particularly  the Bank Holding Company
                  Act of 1956 and the National Bank Act

                                                       

<PAGE>4


          **   We are limited to the business of banking and related  businesses
               which   prohibits  us  from   expanding  into  certain  types  of
               businesses which could be profitable for us

          **   Where we can do business and establish offices is regulated which
               could decrease our ability to expand into new markets

          **   The  amount of  deposits  we can own in each  state is  regulated
               which limits our potential growth

          **   Our ability to make  acquisitions  and engage in new business may
               be  limited  by the  performance  of our  obligations  under  the
               Community  Reinvestment  Act to provide services in traditionally
               underserved areas

          **   We do not know the extent to which  changes in the  statutes  and
               regulations  under we operate may  adversely  affect our business
               and we do not have control over such changes

          **   Those of our  competitors  which  are not banks  are  subject  to
               significantly  less  government  regulation than we are which may
               give them a competitive advantage in the market place

Risk of Regulatory Limitations on Payment of Dividends

          **   Our  earnings  will be the  source  of our  ability  to repay the
               Senior Debt Securities

          **   Because  we  are  a  bank  holding  company,   our  earnings  are
               principally derived from dividends from our banks

          **   Regulations of the  Comptroller of the Currency limit the ability
               of our banks to pay us dividends by requiring that a bank receive
               approval of the OCC before  declaring a dividend if the amount of
               all  dividends,  including the proposed  dividend,  declared by a
               bank in any calendar year exceeds:

               (1)  the total of the bank's net profits of that calendar year to
                    date plus

               (2)  retained net profits of the preceding two years minus

               (3)  any  required  transfers  to  surplus  or  a  fund  for  the
                    retirement of preferred stock

                                                       

<PAGE>5


Risk of Capital Requirements

          **   The Federal Deposit Insurance Improvement Act of 1991 established
               five  capital  rating  tiers  ranging  from well  capitalized  to
               critically undercapitalized

          **   We must maintain capital ratios above the well capitalized  level
               if we want to  experience  significant  growth and acquire  other
               financial institutions and branches

          **   Well capitalized means a minimum of 5% for Leverage  Capital,  6%
               for Tier I Capital, and 10% for Total Capital

          **   At June 30, 1998, our ratios were 7.24% for Leverage Capital,
                  9.35% for Tier I Capital, and 14.15% for Total Capital

          **   At June 30, 1998, our  subsidiary  banks were also well above the
               required minimum leverage and risk-based  ratios,  but if we fall
               below these ratios, the growth potential of our business would be
               limited

Risk of Government Policies and Economic Factors

Our business is highly sensitive to:

          **   changes in legislation  and the policies and  examinations of the
               various regulatory authorities

          **   the monetary  policies  implemented by the Federal Reserve Board,
               including  the discount  rate on bank  borrowings  and changes in
               reserve  requirements which affects our ability to make loans and
               the interest rates we may charge

          **   open market operations in U.S. Government securities

          **   changes in prevailing interest rates because of the dependency of
               our banks on
                  interest income

          **   We cannot  predict the effect of such matters on our business and
               earnings

Risk of Lack of Marketability

          **   We cannot  guarantee  a  secondary  market  for our  Senior  Debt
               Securities  or that  holders  who wish to sell their  Senior Debt
               Securities prior to the stated maturity will be able to do so

                                                       

<PAGE>6


          **   We do not plan to list the Senior Debt  Securities for trading on
               any exchange or other trading market

Risk of Year 2000 Problems

          **   We, and our  service  providers,  are having to modify or replace
               significant  portions  of our and  their  computer  software  and
               hardware to ensure that our systems  will  function  correctly in
               the Year 2000 and thereafter

          **   We have made good  progress  and do not foresee  any  significant
               operational  problems  with our  systems or those of our  service
               providers;  however, if we or our service providers do not timely
               complete the required  modifications and  replacements,  we could
               experience a material adverse impact on our business and earnings

                      DESCRIPTION OF SENIOR DEBT SECURITIES

         This  description of the Senior Debt  Securities does not purport to be
complete and is subject to, and  qualified in its entirety by reference  to, the
indentures  pursuant to which such Senior Debt Securities are issued,  the forms
of which indentures are filed as exhibits to the registration statement of which
this prospectus is a part. Furthermore, the following summary description of the
indentures  and  the  Senior  Debt  Securities  relates  to  certain  terms  and
conditions  applicable to the Senior Debt Securities  generally.  The particular
terms  of any  series  of  Senior  Debt  Securities  will  be  described  in the
applicable prospectus supplement. If so indicated in such prospectus supplement,
the terms of any such series may differ from the terms set forth below.

         General

         Senior  Debt  Securities  are to be  issued  under  an  indenture  (the
"Indenture")  between BOK  Financial  Corporation  and the trustee  named in the
applicable  prospectus  supplement as the trustee therefor (the "Trustee").  The
form of  Indenture  is an exhibit to the  registration  statement  of which this
prospectus is a part.

         The Senior Debt Securities will be direct, unsecured obligations of BOK
Financial Corporation.  The Senior Debt Securities will not be deposits or other
obligations  of a bank and will not be  guaranteed or insured by the FDIC or any
other governmental agency.

                                                       

<PAGE>7


         The Indenture does not limit the aggregate  principal  amount of Senior
Debt  Securities or of any particular  series of Senior Debt Securities that may
be issued  thereunder and provide that Senior Debt Securities  issued thereunder
may be  issued  from time to time in one or more  series,  in each case with the
same or various  maturities,  at par or at a discount.  The  Indenture  does not
limit the amount of other debt that may be issued by BOK  Financial  Corporation
and does not contain financial or similar restrictive  covenants.  The Indenture
does not prohibit or limit the incurrence of additional  senior  indebtedness or
other financial obligations.  The Indenture provides that there may be more than
one Trustee under such Indenture with respect to different series of Senior Debt
Securities.

         The  Indenture  does not  contain  any  provision  intended  to provide
protection  to holders of Senior  Debt  Securities  against a sudden or dramatic
decline in credit quality of BOK Financial  Corporation that could, for example,
result   from  a   takeover,   recapitalization,   special   dividend  or  other
restructuring.

         The applicable  prospectus supplement will describe the following terms
of the series of Senior Debt  Securities in respect of which this  prospectus is
being delivered:

         (1)      the title of such Senior Debt Securities;

         (2)      any limit upon the aggregate  principal  amount of such Senior
                  Debt Securities and the percentage of such principal amount at
                  which such Senior Debt Securities may be issued;

         (3)      the date or dates on which the  principal  of such Senior Debt
                  Securities  is  scheduled  to  become   payable  (the  "Stated
                  Maturity");

         (4)      the rate or rates (which may be fixed or  variable)  per annum
                  at which such Senior Debt  Securities  will bear interest,  or
                  the method of determining such rate or rates, if any, the date
                  or dates from which any such interest  will accrue,  the dates
                  on which any such  interest  will be  payable  (the  "Interest
                  Payment  Dates"),  the Regular  Record Date (as defined in the
                  Indenture)  for the interest  payable on any Interest  Payment
                  Date, and the person to whom principal of or premium,  if any,
                  or interest on any Senior Debt Security of such series will be
                  payable,  if other than the  person in whose name such  Senior
                  Debt  Security  (or  one  or  more  predecessor   Senior  Debt
                  Securities)  is  registered  at the close of  business  on the
                  Regular Record Date for such interest;

         (5)      if other than the location  specified in this prospectus,  the
                  place or places where the  principal  of and premium,  if any,
                  and interest on Senior Debt Securities will be payable;

         (6)      the period or  periods  within  which,  the price or prices at
                  which and the terms and conditions upon which such Senior Debt
                  Securities  will,  pursuant  to  any  mandatory  sinking  fund
                  provisions  or  otherwise,  or may,  pursuant to any  optional
                  sinking fund provisions or otherwise,  be redeemed in whole or
                  in part by BOK Financial Corporation;

         (7)      the period or  periods  within  which,  the price or prices at
                  which and the terms and conditions upon which such Senior Debt
                  Securities  may be repaid,  in whole or in part, at the option
                  of the holders thereof;

                                                       
<PAGE>8


         (8)      if  other  than  denominations  of  $1,000  and  any  integral
                  multiple thereof,  the denominations in which such Senior Debt
                  Securities will be issuable;

         (9)      if other than the principal amount thereof, the portion of the
                  principal  amount of such Senior Debt  Securities that will be
                  payable  upon  declaration  of  acceleration  of the  maturity
                  thereof;

         (10)     the  currency or currency  unit of payment of principal of and
                  premium,  if any, and interest on such Senior Debt Securities,
                  and any index used to determine  the amount of principal of or
                  premium, if any, and interest on such Senior Debt Securities;

         (11)     whether  such  Senior  Debt  Securities  are to be issuable as
                  Global  Securities  (as defined  below) and, in such case, the
                  initial  securities  depositary  with respect  thereto and the
                  circumstances   under  which  such  Global   Security  may  be
                  exchanged for definitive securities; and

         (12) any other material terms of such Senior Debt Securities.

         Form, Registration and Transfer

         Unless  otherwise  indicated in the applicable  prospectus  supplement,
principal  of,  and  premium,  if any,  and  interest,  if any,  on Senior  Debt
Securities will be payable, and Senior Debt Securities will be transferable,  at
the agency or office of BOK Financial Corporation maintained for such purpose in
the Borough of Manhattan, The City of New York, except that interest may be paid
at the option of BOK Financial Corporation by check mailed to the address of the
holder entitled  thereto as it appears on the applicable  Security  Register (as
defined in the applicable Indenture).

         Unless  otherwise  indicated in the applicable  prospectus  supplement,
Senior Debt Securities  will be issued only in fully  registered  form,  without
coupons,  in  denominations  of $1,000 and any integral  multiple  thereof.  The
Indentures  provide that Senior Debt Securities of any series may be issuable in
permanent global form. See "GLOBAL  SECURITIES" below. No service charge will be
made for any registration of transfer or exchange of the Senior Debt Securities,
but BOK Financial  Corporation  may require payment of a sum sufficient to cover
any tax or other governmental charge payable in connection therewith.

         Limitation on Disposition of Voting Stock of Principal Subsidiary Banks


                                                       
<PAGE>9


         The Indenture contains a covenant by BOK Financial  Corporation that it
will not sell,  assign,  transfer,  grant a security  interest  in or  otherwise
dispose of any shares of,  securities  convertible into or options,  warrants or
rights to subscribe for or purchase  shares of, Voting Stock (as defined  below)
(other than directors'  qualifying shares) of any Principal  Subsidiary Bank (as
defined  below)  and that it will not permit any  Principal  Subsidiary  Bank to
issue  (except  to  BOK  Financial   Corporation)  any  shares  of,   securities
convertible  into,  or options,  warrants or rights to subscribe for or purchase
shares of,  Voting Stock of any  Principal  Subsidiary  Bank,  except for sales,
assignments, transfers, grants of security interests or other dispositions that:

         (1)      are for fair market value on the date  thereof,  as determined
                  by the Board of Directors of BOK Financial  Corporation (which
                  determination shall be conclusive) and, after giving effect to
                  such disposition and to any possible  dilution,  BOK Financial
                  Corporation will own not less than 80% of the shares of Voting
                  Stock  of such  Principal  Subsidiary  Bank  then  issued  and
                  outstanding free and clear of any security interest;

         (2)      are made in compliance  with an order of a court or regulatory
                  authority of competent jurisdiction, as a condition imposed by
                  any such court or authority  permitting the acquisition by BOK
                  Financial  Corporation,  directly or indirectly,  of any other
                  bank or entity the activities of which are legally permissible
                  for a bank holding  company or a subsidiary  thereof to engage
                  in, or as an undertaking  made to such authority in connection
                  with such an acquisition;

         (3)      are made where such Principal Subsidiary Bank, having obtained
                  any necessary regulatory approvals, unconditionally guarantees
                  payment when due of the principal of and premium,  if any, and
                  interest on the Senior Debt Securities; or

                                                       

<PAGE>10


         (4)      are  made to BOK  Financial  Corporation  or any  Wholly-Owned
                  Subsidiary (as defined in the Indenture) if such  Wholly-Owned
                  Subsidiary  agrees  to be  bound  by  this  covenant  and  BOK
                  Financial  Corporation  agrees to maintain  such  Wholly-Owned
                  Subsidiary as a Wholly-Owned  Subsidiary.  Notwithstanding the
                  foregoing, any Principal Subsidiary Bank may be merged into or
                  consolidated with another banking institution  organized under
                  the  laws of the  United  States,  any  State  thereof  or the
                  District of Columbia if, after giving effect to such merger or
                  consolidation,  BOK Financial Corporation or any Wholly- Owned
                  Subsidiary owns at least 80% of the Voting Stock of such other
                  banking institution then issued and outstanding free and clear
                  of any  security  interest  and if,  immediately  after giving
                  effect  thereto  and  treating  any  such  resulting   banking
                  institution  thereafter as such Principal  Subsidiary Bank and
                  as a  Subsidiary  for purposes of the  Indenture,  no Event of
                  Default,  and no event  that,  after  the  giving of notice or
                  lapse of time or both,  would become an Event of Default,  has
                  occurred and is continuing.  A "Principal  Subsidiary Bank" is
                  defined in the Indenture to mean any Subsidiary (as defined in
                  the  Indenture)  that is a bank and has total  assets equal to
                  30%  or  more  of the  consolidated  assets  of BOK  Financial
                  Corporation  determined  as of the  date  of the  most  recent
                  audited financial statements of such entities. At present, the
                  only  Principal  Subsidiary  Bank  is the  Bank  of  Oklahoma,
                  National  Association.   "Voting  Stock"  is  defined  in  the
                  Indenture to mean stock of the class or classes having general
                  voting power under ordinary  circumstances to elect at least a
                  majority  of the board of  directors,  managers or trustees of
                  such  corporation  (irrespective of whether or not at the time
                  stock of any  other  class or  classes  will  have  contingent
                  voting rights).

         Consolidation, Merger and Sale of Assets

         The  Indenture   provides  that  BOK  Financial   Corporation  may  not
consolidate  with or merge into any other person or transfer its  properties and
assets substantially as an entirety to any person unless:

         (1)      the  person  formed by such  consolidation  or into  which BOK
                  Financial  Corporation  is merged  or the  person to which the
                  properties  and  assets of BOK  Financial  Corporation  are so
                  transferred is a corporation,  partnership or trust  organized
                  and validly existing under the laws of the United States,  any
                  State  thereof  or the  District  of  Columbia  and  expressly
                  assumes  by  a  supplemental  indenture  the  payment  of  the
                  principal of and  premium,  if any, and interest on the Senior
                  Debt  Securities,  as the case may be, and the  performance of
                  the other  covenants of BOK  Financial  Corporation  under the
                  applicable Indenture;

         (2)      immediately after giving effect to such transaction,  no Event
                  of Default or Default (as defined below),  as applicable,  and
                  no event that,  after  notice or lapse of time or both,  would
                  become an Event of  Default or  Default,  as  applicable,  has
                  occurred and is continuing; and

         (3)      certain other conditions are met.

         Defaults

         An "Event of  Default"  is defined in the  Indenture,  with  respect to
Senior Debt Securities of any series issued thereunder, as:

          (1)  default in the payment of principal of or premium, if any, on any
               Debt Security of that series at maturity;

          (2)  default  for 30 days  in the  payment  of  interest  on any  Debt
               Security of that series;

          (3)  default in the deposit of any sinking  fund  payment  when due in
               respect of that series;

                                                       

<PAGE>11


         (4)      default in the performance,  or breach,  of any other covenant
                  or warranty of BOK Financial  Corporation  in the Indenture or
                  in the Senior Debt Securities of that series, continued for 60
                  days after written notice to BOK Financial  Corporation by the
                  Trustee or to BOK Financial Corporation and the Trustee by the
                  holders of not less than 25% of the aggregate principal amount
                  of the outstanding Senior Debt Securities of that series;

         (5)      failure  to pay when  due any  indebtedness  of BOK  Financial
                  Corporation  or any  Principal  Subsidiary  Bank for  borrowed
                  money in excess of $5,000,000, or acceleration of the maturity
                  of  any  such   indebtedness  in  excess  of  such  amount  if
                  acceleration  results  from a  default  under  the  instrument
                  giving rise to such indebtedness and is not annulled within 60
                  days after due notice,  unless in either case such  default is
                  contested in good faith by appropriate proceedings;

         (6)      certain events of bankruptcy,  insolvency or reorganization of
                  BOK Financial  Corporation or any Principal  Subsidiary  Bank;
                  and

         (7)      any  other  Event of  Default  that may be  provided  for with
                  respect to Senior Debt Securities of that series.

         The  Indenture  provides  that, if any Event of Default with respect to
Senior Debt Securities of any series at the time outstanding  thereunder  occurs
and is  continuing,  either the  Trustee or the  holders of not less than 25% in
aggregate  principal  amount of the  outstanding  Senior Debt Securities of that
series may declare the  principal  amount of all Senior Debt  Securities of that
series to be due and payable  immediately  (provided that no such declaration is
required upon certain events of bankruptcy,  insolvency or reorganization),  but
upon certain  conditions  such  declaration  may be annulled  and past  defaults
(except,  unless  theretofore  cured,  a default in payment of  principal  of or
premium,  if any, or interest on the Senior Debt  Securities  of that series and
certain other specified  defaults) may be waived by the holders of a majority in
principal  amount of the  outstanding  Senior Debt  Securities of that series on
behalf of the holders of all Senior Debt Securities of that series. In the event
of the bankruptcy,  insolvency or reorganization  of BOK Financial  Corporation,
the  claims of  holders of the  Senior  Debt  Securities  would be subject as to
enforcement to the broad equity power of a United States  Bankruptcy  Court, and
to the determination by that court of the nature of the rights of such holders.

         The Indenture  contains a provision  entitling the Trustee,  subject to
the duty of the Trustee  upon the  occurrence  and  continuation  of an Event of
Default to act with the  required  standard of care,  to be  indemnified  by the
holders of any series of outstanding  Senior Debt Securities  thereunder  before
proceeding  to exercise any right or power under the Indenture at the request of
the holders of such series of Senior Debt  Securities.  The  Indenture  provides
that the  holders of a majority in  aggregate  principal  amount of  outstanding
Senior Debt Securities of any series  thereunder may direct the time, method and
place of conducting any proceeding for any remedy  available to the Trustee,  or
exercising  any trust or other power  conferred on the Trustee,  with respect to
the Senior Debt Securities of such series, provided that the Trustee may decline
to act if such  direction is contrary to law or the  Indenture or would  involve
the Trustee in personal liability.

                                                       
<PAGE>12


         BOK  Financial  Corporation  will  file  annually  with the  Trustee  a
certificate as to compliance with all conditions and covenants in the Indenture.

         Defeasance and Discharge

         The  Indenture  provides  that the terms of any  series of Senior  Debt
Securities  issued  thereunder  may provide that BOK Financial  Corporation  may
terminate  certain of its  obligations  under such Indenture with respect to the
Senior Debt Securities of such series on the terms and subject to the conditions
contained in such Indenture,  by (a) depositing  irrevocably with the applicable
Trustee as trust funds in trust:

         (1)      in the case of Senior Debt Securities denominated in a foreign
                  currency, money in such foreign currency or Foreign Government
                  Obligations  (as defined  below) of the foreign  government or
                  governments issuing such foreign currency,

         (2)      in the case of  Senior  Debt  Securities  denominated  in U.S.
                  dollars,  U.S.  dollars  or U.S.  Government  Obligations  (as
                  defined  below),  in each case in an amount  that  through the
                  payment of interest,  principal or premium, if any, in respect
                  thereof in accordance  with their terms will provide  (without
                  any reinvestment of such interest,  principal or premium), not
                  later  than  one  business  day  before  the  due  date of any
                  payment, money, or

         (3)      a  combination  of money and U.S.  Government  Obligations  or
                  Foreign Government Obligations,  as applicable,  sufficient to
                  pay the principal of or premium,  if any, and interest on, the
                  Senior Debt Securities of such series as such are due.

and  (b)  satisfying  certain  other  conditions   precedent  specified  in  the
applicable Indenture.  Such deposit and termination is conditioned,  among other
things,  upon  BOK  Financial  Corporation's  delivery  of  (a)  an  opinion  of
independent  counsel  that the  holders of the Senior  Debt  Securities  of such
series will have no federal income tax  consequences as a result of such deposit
and  termination  and (b) if the Senior Debt  Securities of such series are then
listed on an exchange,  an opinion of counsel that the Senior Debt Securities of
such series will not be  delisted  as a result of the  exercise of this  option.
Such termination will not relieve BOK Financial Corporation of its obligation to
pay when due the  principal  of, and interest on the Senior Debt  Securities  of
such series if the Senior Debt  Securities  of such series are not paid from the
money, Foreign Government Obligations or U.S.Government  Obligations held by the
applicable Trustee for payment thereof.

                                                       

<PAGE>13


         "U.S.  Government  Obligations"  means  securities  that are (1) direct
obligations  of the United  States of America  for the payment of which its full
faith  and  credit is  pledged  or (2)  obligations  of a person  controlled  or
supervised by and acting as an agency or instrumentality of the United States of
America the payment of which is  unconditionally  guaranteed as a full faith and
credit  obligation by the United States of America,  that, in either case, under
clauses (1) or (2) are not  callable or  redeemable  at the option of the issuer
thereof.  "Foreign  Government  Obligations"  means securities  denominated in a
foreign currency that are (1) direct obligations of a foreign government for the
payment of which its full faith and  credit is pledged or (2)  obligations  of a
person controlled or supervised by and acting as an agency or instrumentality of
a foreign  government  the payment of which is  unconditionally  guaranteed as a
full faith and credit  obligation  by such foreign  government,  that, in either
case,  under  clauses (1) or (2) are not callable or redeemable at the option of
the issuer thereof.

         The applicable  prospectus supplement will state whether any defeasance
provisions of the applicable  Indenture will apply to the Senior Debt Securities
offered thereby.

         Modification and Waiver

         Certain  modifications  and amendments of each of the Indentures may be
made by BOK  Financial  Corporation  and the  applicable  Trustee  only with the
consent of the holders of not less than a majority in aggregate principal amount
of the  outstanding  Senior Debt  Securities  of each series  issued  under such
Indenture and affected by the  modification or amendment,  provided that no such
modification  or  amendment  may,  without  the  consent  of the  holder of each
outstanding Debt Security issued under such Indenture and affected thereby:

         (1)      change  the Stated  Maturity  (as  defined  in the  applicable
                  indenture)  of  the  principal  of,  or  any   installment  of
                  principal of or interest on, any such Debt Security;

         (2)      reduce the principal amount of, or the premium, if any, or the
                  interest, if any, on, any such Debt Security;

         (3)      change the place of payment where,  or the coin or currency or
                  currency unit in which, any principal of, or premium,  if any,
                  or interest on, any such Debt Security is payable;

         (4)      impair the right to institute suit for the  enforcement of any
                  such payment on or after the Stated  Maturity  thereof (or, in
                  the case of redemption,  on or after the  Redemption  Date (as
                  defined in the applicable Indenture));

         (5)      reduce the above-stated  percentage of outstanding Senior Debt
                  Securities  of any series the  consent of the holders of which
                  is necessary to modify or amend the applicable Indenture; or

         (6)      modify the foregoing  requirements or reduce the percentage of
                  aggregate   principal   amount  of  outstanding   Senior  Debt
                  Securities  of any  series  required  to be  held  by  holders
                  seeking to waive  compliance  with certain  provisions  of the
                  applicable Indenture or seeking to waive certain defaults.

                                                       
<PAGE>14

         The holders of not less than a majority in aggregate  principal  amount
of the  outstanding  Senior Debt  Securities  of any series may on behalf of the
holders of all Senior  Debt  Securities  of that series  waive,  insofar as that
series is  concerned,  compliance  by BOK  Financial  Corporation  with  certain
restrictive provisions of the applicable Indenture. The holders of not less than
a  majority  in  aggregate  principal  amount  of the  outstanding  Senior  Debt
Securities  of any  series  may on  behalf of the  holders  of all  Senior  Debt
Securities of that series waive any past default under the applicable  Indenture
with  respect to that series,  except a default in the payment of the  principal
of, or premium,  if any, or interest on, any Debt  Security of that series or in
respect of a covenant or provision that under the applicable Indenture cannot be
modified or amended without the consent of the holder of each  outstanding  Debt
Security issued thereunder of the series affected.

         Certain  modifications  and amendments of each of the Indentures may be
made by BOK Financial Corporation and the applicable Trustee without the consent
of  holders  of  the  outstanding  Senior  Debt  Securities  issued  under  such
Indenture.

         Each Indenture provides that in determining  whether the holders of the
requisite  principal  amount of the outstanding  Senior Debt  Securities  issued
under such Indenture have given any request, demand,  authorization,  direction,
notice,  consent or waiver  thereunder or are present at a meeting of holders of
Senior Debt  Securities  for quorum  purposes,  the  principal  amount of a Debt
Security  denominated  in a foreign  currency or currency  unit will be the U.S.
dollar  equivalent,  determined  on the date of  original  issuance of such Debt
Security,  of the  principal  amount of such Debt Security or, in the case of an
Original Issue Discount Security, the U.S. dollar equivalent,  determined on the
date of original  issuance of such Debt  Security,  of the amount  determined as
provided above.

         Title

         BOK Financial Corporation,  the applicable Trustee and any agent of BOK
Financial  Corporation or the applicable  Trustee may treat the registered owner
of any Debt  Security as the absolute  owner  thereof  (whether or not such Debt
Security  is overdue and  notwithstanding  any notice to the  contrary)  for the
purpose of making payment and for all other  purposes.  See "GLOBAL  SECURITIES"
below.

         Replacement of Senior Debt Securities

         Any  mutilated   Debt  Security  will  be  replaced  by  BOK  Financial
Corporation at the expense of the holder upon surrender of such Debt Security to
the applicable  Trustee.  Senior Debt  Securities  that are  destroyed,  lost or
stolen  will be  replaced  by BOK  Financial  Corporation  at the expense of the
holder upon delivery to the applicable  Trustee of evidence of the  destruction,
loss  or  theft  thereof  satisfactory  to BOK  Financial  Corporation  and  the
applicable Trustee. In the case of a destroyed, lost or stolen Debt Security, an
indemnity  satisfactory to the applicable Trustee and BOK Financial  Corporation
may be  required  at the  expense of the holder of such Debt  Security  before a
replacement Debt Security will be issued.

                                                       
<PAGE>15

         Governing Law

         The Indentures and the Senior Debt  Securities will be governed by, and
construed in accordance with, the laws of the State of New York.

         Concerning the Trustees

         The Trustee will be named in the applicable prospectus supplement.

         Any Trustee may resign or be removed with respect to one or more series
of Senior Debt  Securities and a successor  Trustee may be appointed to act with
respect to such  series.  If two or more  persons  are  acting as  Trustee  with
respect to different series of Senior Debt Securities, each such Trustee will be
a Trustee of a trust under the  related  Indenture  separate  and apart from the
trust administered by any other such Trustee, and any action described herein to
be taken by the  "Trustee"  may then be taken by each such  Trustee with respect
to, and only with  respect to, the one or more series of Senior Debt  Securities
for which it is Trustee.

         In the ordinary course of business,  BOK Financial  Corporation and its
subsidiaries may conduct banking  transactions with a Trustee,  and such Trustee
and  its  affiliates  may  conduct  banking   transactions  with  BOK  Financial
Corporation and its subsidiaries.

         Ratings

         Particular series of Senior Debt Securities may be rated by one or more
nationally recognized statistical rating agencies. the rating agency or agencies
and rating or ratings to be  assigned  with  respect to a series of Senior  Debt
Securities  will be specified  in the  prospectus  supplement  for the series of
Senior Debt Securities.

                                GLOBAL SECURITIES

         Unless otherwise specified in the applicable prospectus supplement, the
Senior  Debt  Securities  will be  issued  in the  form  of one or  more  global
certificates (collectively,  with respect to each series or issue of Securities,
the "Global Security")  registered in the name of a depositary or a nominee of a
depositary.  Unless otherwise specified in the applicable prospectus supplement,
the  depositary  will be The  Depository  Trust Company  ("DTC").  BOK Financial
Corporation  has  been  informed  by DTC  that  its  nominee  will be Cede & Co.
("Cede").  Accordingly,  Cede is expected to be the initial registered holder of
all Senior  Debt  Securities  that are  issued in global  form.  No person  that
acquires a beneficial  interest in such Senior Debt  Securities will be entitled
to receive a certificate  representing such person's interest in the Senior Debt
Securities  except  as  set  forth  herein  or  in  the  applicable   prospectus
supplement.  Unless and until definitive Senior Debt Securities are issued under
the limited circumstances  described below, all references to actions by holders
of Senior Debt Securities  issued in global form shall refer to actions taken by
DTC  upon  instructions  from  its  Participants  (as  defined  below),  and all
references herein to payments and notices to holders shall refer to payments and
notices to DTC or Cede, as the registered holder of such Senior Debt Securities.

                                                       

<PAGE>16

         DTC is a company  organized  under the New York Banking Law, a "banking
organization"  within the  meaning  of the New York  Banking  Law,  that it is a
member of the  Federal  Reserve  System,  a  "clearing  corporation"  within the
meaning  of the  New  York  Uniform  Commercial  Code  and a  "clearing  agency"
registered  pursuant to Section 17A of the Exchange Act, and was created to hold
securities  for  its  participating   organizations   ("Participants")   and  to
facilitate  the  clearance  and  settlement  of  securities  transactions  among
Participants  through electronic  book-entry,  thereby  eliminating the need for
physical movement of certificates.  Participants  include securities brokers and
dealers,  banks,  trust  companies  and clearing  corporations,  and may include
certain other organizations. Indirect access to the DTC system also is available
to others such as banks, brokers, dealers and trust companies that clear through
or maintain a custodial  relationship  with a  Participant,  either  directly or
indirectly ("Indirect Participants").

         Persons that are not  Participants or Indirect  Participants but desire
to purchase,  sell or otherwise  transfer  ownership  of, or other  interests in
Senior  Debt  Securities  may  do so  only  through  Participants  and  Indirect
Participants.  Under a book-entry  format,  holders may experience some delay in
their  receipt of  payments,  as such  payments  will be  forwarded by the agent
designated  by BOK Financial  Corporation  to Cede, as nominee for DTC. DTC will
forward such payments to its Participants, which thereafter will forward them to
Indirect  Participants  or  holders.  Holders  will  not  be  recognized  by BOK
Financial Corporation or by the applicable registrar, transfer agent, Trustee or
Depositary, or their agents, as registered holders of the Senior Debt Securities
entitled to the benefits of the applicable Indenture. Beneficial owners that are
not  Participants  will be  permitted  to  exercise  their  rights  as such only
indirectly  through  and  subject to the  procedures  of  Participants  and,  if
applicable, Indirect Participants.

         Under the rules,  regulations and procedures creating and affecting DTC
and its operations as currently in effect (the "Rules"), DTC will be required to
make book-entry  transfers of Senior Debt Securities  among  Participants and to
receive  and  transmit  payments  to  Participants.  Participants  and  Indirect
Participants  with  which  beneficial  owners of  Senior  Debt  Securities  have
accounts  with respect to the Senior Debt  Securities  similarly are required by
the Rules to make book-entry transfers and receive and transmit such payments on
behalf of their respective account holders.

         Because  DTC can act only on  behalf of  Participants,  who in turn act
only on  behalf  of  Participants  or  Indirect  Participants,  and on behalf of
certain banks,  trust companies and other persons approved by it, the ability of
a  beneficial  owner of Senior Debt  Securities  issued in global form to pledge
such Senior Debt  Securities to persons or entities that do not  participate  in
the DTC system, or to otherwise act with respect to such Senior Debt Securities,
may be limited  due to the  unavailability  of  physical  certificates  for such
Senior Debt Securities.


                                                       
<PAGE>17


         DTC has advised BOK Financial Corporation that DTC will take any action
permitted to be taken by a registered holder of any Senior Debt Securities under
the applicable  Indenture only at the direction of one or more  Participants  to
whose accounts with DTC such Senior Debt Securities are credited.

         Unless otherwise specified in the applicable prospectus  supplement,  a
Global Security will be  exchangeable  for the relevant  definitive  Senior Debt
Securities registered in the names of persons other than DTC or its nominee only
if (1) DTC notifies BOK Financial  Corporation that it is unwilling or unable to
continue as depository for such Global  Security or if at any time DTC ceases to
be a clearing  agency  registered  under the  Exchange Act at a time when DTC is
required  to be so  registered  in  order  to act as  such  depository,  (2) BOK
Financial  Corporation   determines  that  such  Global  Security  shall  be  so
exchangeable  or (3) there has occurred and is continuing an Event of Default or
an event  that,  with the  giving  of notice  or lapse of time,  or both,  would
constitute an Event of Default with respect to such Senior Debt Securities.  Any
Global Security that is exchangeable  pursuant to the preceding sentence will be
exchangeable for Senior Debt Securities registered in such names as DTC directs.

         Upon the occurrence of any event described in the immediately preceding
paragraph,  DTC  is  generally  required  to  notify  all  Participants  of  the
availability through DTC of definitive Senior Debt Securities. Upon surrender by
DTC  of  the  Global  Security  representing  the  Securities  and  delivery  of
instructions  for  re-registration,  the registrar,  transfer agent,  Trustee or
Depositary,  as the case may be,  will  reissue the Senior  Debt  Securities  as
definitive  Senior Debt  Securities,  and thereafter such persons will recognize
the holders of such definitive  Senior Debt Securities as registered  holders of
Senior Debt Securities entitled to the benefits of the applicable Indenture.

         Except as described  above,  a Global  Security may not be  transferred
except  as a whole by DTC to a nominee  of DTC or by a nominee  of DTC to DTC or
another nominee of DTC or to a successor  depositary  appointed by BOK Financial
Corporation.  Except as described above, DTC may not sell,  assign,  transfer or
otherwise convey any beneficial  interest in a Global Security evidencing all or
part of any Senior  Debt  Securities  unless such  beneficial  interest is in an
amount equal to an authorized denomination for such Senior Debt Securities.

                                 USE OF PROCEEDS

         We will use the proceeds of the sale of the Senior Debt Securities for:

         **       acquisitions

         **       capital improvements

         **       repayment of short term bank borrowings

         **       start-up of new banking and bank related businesses

         **       expansion of existing business

         **       general working capital

                                                       
<PAGE>18


         We will tell you in the prospect supplement for what purpose we plan to
use the proceeds of any particular series of the Senior Debt Securities.

                              PLAN OF DISTRIBUTION

         We may sell the  offered  securities  (a) through  agents;  (b) through
underwriters or dealers; or (c) directly to one or more purchasers.

         By Agents

         Offered  securities  may be sold through  agents  designated by us. The
agents agree to use their  reasonable best efforts to solicit  purchases for the
period of their appointment.

         By Underwriters

         If  underwriters  are used in the sale, the offered  securities will be
acquired by the underwriters for their own account.  The underwriters may resell
the securities in one or more transactions,  including negotiated  transactions,
at a fixed public offering price or at varying prices  determined at the time of
sale. The  obligations of the  underwriters  to purchase the securities  will be
subject to certain  conditions.  The underwriters  will be obligated to purchase
all the securities of the series offered if any of the securities are purchased.
Any initial public  offering  price and any discounts or concessions  allowed or
re-allowed or paid to dealers may be changed from time to time.

         Direct Sales

         Offered  securities  may also be sold  directly by us. In this case, no
underwriters or agents would be involved.

         General Information

         Underwriters,  dealers and agents that  participate in the distribution
of the offered  securities may be  underwriters as defined in the Securities Act
of 1933 (the "Act"),  and any discounts or commissions  received by them from us
and any profit on the resale of the offered securities by them may be treated as
underwriting discounts and commissions under the Act. Any underwriters or agents
will be identified and their compensation described in a prospectus supplement.

         We may have  agreements  with the  underwriters,  dealers and agents to
indemnify them against certain civil  liabilities,  including  liabilities under
the Act,  or to  contribute  with  respect to payments  which the  underwriters,
dealers or agents may be required to make.

         Underwriters,  dealers and agents may engage in  transactions  with, or
perform  services for, us or our  subsidiaries  in the ordinary  course of their
businesses.


                                                       
<PAGE>19


                       RATIO OF EARNINGS TO FIXED CHARGES

                                     Six Months
                                        Ended          Year Ended December 31,
                                   June 30, 1998 1997   1996   1995  1994   1993
                                   ------------- ----   ----   ----  ----   ----
Ratio of Earnings to Fixed Charges:

Excluding Interest on Deposits           2.68     2.21   2.54   2.02  2.81  6.80
Including Interest on Deposits           1.55     1.43   1.43   1.40  1.57  1.73

         These   computations   include  BOK  Financial   Corporation   and  its
subsidiaries.  For these  ratios,  "earnings"  are  determined  by adding "fixed
charges"  income taxes to income from  continuing  operations.  "Fixed  charges"
consist of  interest  on all debt and  amortization  of  premiums  or  discounts
associated with debt.

                     VALIDITY OF THE SENIOR DEBT SECURITIES

         Unless otherwise indicated in the applicable prospectus supplement, the
validity of and Senior Debt  Securities  offered  hereby will be passed upon for
BOK Financial  Corporation by its counsel,  Frederic  Dorwart,  Esquire,  Tulsa,
Oklahoma.

                                     EXPERTS

         The  consolidated  financial  statements of BOK  Financial  Corporation
incorporated  by reference in BOK  Financial  Corporation's  Annual Report (Form
10-K) for the year ended  December  31, 1997 have been  audited by Ernst & Young
LLP,  independent  auditors,  as set  forth  in  their  report  incorporated  by
reference  therein  and  incorporated  herein by  reference.  Such  consolidated
financial  statements are incorporated herein by reference in reliance upon such
report  given  upon the  authority  of such firm as experts  in  accounting  and
auditing.

                                                       

<PAGE>20


                                     PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
                     --------------------------------------

Item 14. Other Expenses of Issuance and Distribution

         The  following  are  the  estimated  expenses  to be  incurred  by  BOK
Financial   Corporation  in  connection   with  the  Offer   described  in  this
Registration Statement:

         SEC registration fee.................................$ 73,750
         Printing and engraving expense.......................  20,000
         Fees and expenses of transfer agent...................  5,000
         Accounting fees and expenses...........................25,000
         Legal fees and expenses............................... 20,000
         Miscellaneous.......................................    5,000
              Total...........................................$148,750

Item 15. Indemnification of Directors and Officers

         The Oklahoma  Business  Corporation Act and Article VI of the Bylaws of
BOK Financial  Corporation  provide BOK Financial  Corporation with broad powers
and  authority  to  indemnify  its  directors  and  officers and to purchase and
maintain  insurance  for such  purposes.  Pursuant to such  statutory  and Bylaw
provisions,  BOK Financial  Corporation has purchased  insurance against certain
costs of indemnification of its officers and directors.

Item 16. Exhibits and Financial Statement Schedules.

         (a)      Exhibits.

Exhibit #     Description of Exhibits

1.0  Form of Underwriting Agreement

3.0  The Articles of Incorporation of BOK Financial Corporation, incorporated by
     reference to (i) Amended and Restated  Certificate of  Incorporation of BOK
     Financial Corporation 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  Corporation,  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 Corporation are set forth in its Certificate of Incorporation.

4.1  Form of Senior Debt Indenture.

                                                       
<PAGE>21


5.0  Opinion of  Frederic  Dorwart,  Lawyers  regarding  validity of Senior Debt
     Securities.

23.0 Consent of independent auditors - Ernst & Young LLP.

27.0 Financial  Data  Schedule  for ended  December 31,  1997,  incorporated  by
     reference to Exhibit  27.0 of Form 10-K for the fiscal year ended  December
     31, 1997

27.1 Restated Financial Data Schedule, incorporated by reference to Exhibit 27.1
     of Form 10-Q for the fiscal quarter ended June 30, 1998

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.

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 Undertakings  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.

                                                       
<PAGE>22



(b)  Financial Statement Schedules.

     All schedules either are not applicable or the information required thereby
     is included in the financial statements or notes thereto.

Item 17. Undertakings.

(a)      The undersigned registrant hereby undertakes:

         (1)      To file,  during any period in which offers or sales are being
                  made,  a   post-effective   amendment  to  this   registration
                  statement:

                    (i)  To include any prospectus  required by Section 10(a)(3)
                         of the Securities Act of 1933;

                    (ii) To  reflect  in the  prospectus  any  facts  or  events
                         arising  after the effective  date of the  registration
                         statement (or the most recent post-effective  amendment
                         thereof)  which,  individually  or  in  the  aggregate,
                         represent a fundamental  change in the  information set
                         forth in the  registration  statement.  Notwithstanding
                         the  foregoing,  any increase or decrease in the volume
                         of  securities  offered (if the total  dollar  value of
                         securities  offered  would not  exceed  that  which was
                         registered)  and any deviation from the low or high and
                         of  the  estimated   maximum   offering  range  may  be
                         reflected  in the  form of  prospectus  filed  with the
                         Commission   pursuant   to  Rule   424(b)  if,  in  the
                         aggregate, the changes in volume and price represent no
                         more than 20% change in the maximum aggregate  offering
                         price set  forth in the  "Calculation  of  Registration
                         Fee" table in the effective registration statement.

                    (iii)To include any  material  information  with  respect to
                         the plan of  distribution  not previously  disclosed in
                         the  registration  statement or any material  change to
                         such   information  in  the   registration   statement;
                         provided,   however,   that  paragraphs  (a)(1)(i)  and
                         (a)(1)(ii) do not apply if the information  required to
                         be  included  in a  post-effective  amendment  by those
                         paragraphs is contained in periodic  reports filed with
                         or  furnished  to  the  Commission  by  the  registrant
                         pursuant  to  Section  13  or  Section   15(d)  of  the
                         Securities  Exchange Act of 1934 that are  incorporated
                         by reference in the registration statement.

         (2)      That, for the purpose of determining  any liability  under the
                  Securities  Act of 1933,  each such  post-effective  amendment
                  shall be deemed to be a new registration statement relating to
                  the  securities  offered  therein,  and the  offering  of such
                  securities at that time shall be deemed to be the initial bona
                  fide offering thereof.

                                                       

<PAGE>23


         (3)      To  remove  from  registration  by means  of a  post-effective
                  amendment any of the securities  being registered which remain
                  unsold at the termination of the offering.

(b)      The  undersigned  registrant  hereby  undertakes  that, for purposes of
         determining any liability under the Securities Act of 1933, each filing
         of the registrant's  annual report pursuant to Section 13(a) or Section
         15(d) of the Securities  Exchange Act of 1934 that is  incorporated  by
         reference  in the  registration  statement  shall be deemed to be a new
         registration  statement relating to the securities offered therein, and
         the offering of such  securities at that time shall be deemed to be the
         initial bona fide offering thereof.

(c)       Insofar as  indemnification  for  liabilities  arising  under the
          Securities  Act of 1933 may be  permitted to  directors,  officers and
          controlling  persons  of the  registrant  pursuant  to  the  foregoing
          provisions,  or otherwise, the registrant has been advised that in the
          opinion of the  Commission  such  indemnification  is  against  public
          policy as expressed in the Act and is,  therefore,  unenforceable.  In
          the event that a claim for  indemnification  against such  liabilities
          (other than the payment by the registrant of expenses incurred or paid
          by a director,  officer or controlling person of the registrant in the
          successful  defense of any action,  suit or proceeding) is asserted by
          such director,  officer or controlling  person in connection  with the
          securities  being  registered,  the  registrant  will,  unless  in the
          opinion of its  counsel  the matter  has been  settled by  controlling
          precedent,  submit to a court of appropriate jurisdiction the question
          of whether  such  indemnification  by it is against  public  policy as
          expressed in the Act and will be governed by the final adjudication of
          such issue.

(d)      The undersigned registrant hereby undertakes to file an application for
         the purpose of determining the eligibility of the trustee in respect of
         the Indenture and the  Subordinated  Indenture to act under  subsection
         (a) of Section 310 of the Trust  Indenture Act in  accordance  with the
         rules  and  regulations  prescribed  by the  Commission  under  Section
         305(b)(2) of the Act.

                                   SIGNATURES

         Pursuant  to the  requirements  of the  Securities  Act  of  1933,  the
Registrant has duly caused this Registration Statement or Amendment to be signed
on its behalf by the  undersigned,  thereunto  duly  authorized,  in the City of
Tulsa, State of Oklahoma, on October 12, 1998.

                                           BOK FINANCIAL CORPORATION

                                      By   /s/ George B. Kaiser
                                          ____________________________________
                                           GEORGE B. KAISER,
                                           Chairman of the Board of Directors

                                                       
<PAGE>24

    Pursuant to the requirements of the Securities Act of 1933, as amended,
this  Amendment  to the  Registration  Statement  has been  signed  below by the
following persons in the capacities and on the date indicated.


Signature                              Title                      Date


 /s/ George B. Kaiser        Chairman of the Board          October 13, 1998
George B. Kaiser             of BOK Financial Corporation


/s/ Stanley A. Lybarger      President, Chief Executive     October 13, 1998
Stanley A. Lybarger          Officer, and Director of
                             BOK Financial Corporation


 /s/ James A. White          Executive Vice President,      October 13, 1998
James A. White               Chief Financial Officer,
                             and Treasurer of BOK
                              Financial Corporation


 /s/ John C. Morrow          Controller of BOK              October 13, 1998
John C. Morrow               Financial Corporation


 /s/ W. Wayne Allen          Director of BOK Financial      October 13, 1998
W. Wayne Allen               Corporation


 /s/ James E. Barnes         Director of BOK Financial      October 13, 1998
James E. Barnes              Corporation


 /s/ Sharon J. Bell          Director of BOK Financial      October 13, 1998
Sharon J. Bell               Corporation


 /s/ Glenn A. Cox            Director of BOK Financial      October 13, 1998
Glenn A. Cox                 Corporation


<PAGE>25


 /s/ Robert H. Donaldson     Director of BOK Financial      October 13, 1998
Robert H. Donaldson          Corporation


 /s/ William E. Durrett      Director of BOK Financial      October 13, 1998
William E. Durrett           Corporation


 /s/ James O. Goodwin        Director of BOK Financial      October 13, 1998
James O. Goodwin             Corporation


 /s/ V. Burns Hargis         Director of BOK Financial      October 13, 1998
V. Burns Hargis              Corporation


 /s/ Howard E. Janzen        Director of BOK Financial      October 13, 1998
Howard E. Janzen             Corporation


 /s/ E. Carey Joullian IV    Director of BOK Financial      October 13, 1998
E. Carey Joullian IV                 Corporation


 /s/ Robert J. LaFortune     Director of BOK Financial      October 13, 1998
Robert J. LaFortune          Corporation


 /s/ Philip C. Lauinger      Director of BOK Financial      October 13, 1998
Philip C. Lauinger           Corporation


 /s/ David R. Lopez          Director of BOK Financial      October 13, 1998
David R. Lopez               Corporation


 /s/ John Massey             Director of BOK Financial      October 13, 1998
John Massey                  Corporation


                             Director of BOK Financial      October 13, 1998
- -----------------------------Corporation
Frank A. McPherson           


 /s/ Steve E. Moore          Director of BOK Financial      October 13, 1998
Steve E. Moore               Corporation
               

<PAGE>26


 /s/ J. Larry Nichols        Director of BOK Financial       October 13, 1998
J. Larry Nichols             Corporation


                            Director of BOK Financial        October 13, 1998
- ----------------------------Corporation
Robert L. Parker, Sr.        


 /s/ James W. Pielsticker    Director of BOK Financial      October 13, 1998
James W. Pielsticker         Corporation


 /s/ E.C. Richards           Director of BOK Financial      October 13, 1998
E.C. Richards                Corporation


 /s/ James A. Robinson       Director of BOK Financial      October 13, 1998
James A. Robinson            Corporation


                             Director of BOK Financial      October 13, 1998
- ----------------------------Corporation
L. Francis Rooney            


 /s/ David J. Tipeconnic     Director of BOK Financial      October 13, 1998
David J. Tippeconnic         Corporation


                             Director of BOK Financial      October 13, 1998
- ----------------------------Corporation
Tom E. Turner                


                             Director of BOK Financial      October 13, 1998
- ---------------------------  Corporation
Robert L. Zemanek            


<PAGE>27

                                POWER OF ATTORNEY

         Each person whose signature  appears below hereby  authorizes George B.
Kaiser and James A.  White,  or either of them,  to file one or more  amendments
(including   post-effective   amendments)  to  Registration   Statement   number
______________,  which  amendments  may make such  changes  in the  Registration
Statement  as Mr.  Kaiser or Mr. White deems  appropriate,  and each such person
hereby  appoints  George B.  Kaiser and James A.  White,  or either of them,  as
attorney-in-fact   to  execute  in  the  name  and  on  behalf  of  each  person
individually,  and in each  capacity  stated  below,  any such  amendment to the
Registration Statement.


Signature                                Title                      Date

 /s/ George B. Kaiser        Chairman of the Board           October 13, 1998
George B. Kaiser             of BOK Financial Corporation


/s/ Stanley A. Lybarger      President, Chief Executive     October 13, 1998
Stanley A. Lybarger          Officer, and Director of
                             BOK Financial Corporation


 /s/ James A. White          Executive Vice President,      October 13, 1998
James A. White               Chief Financial Officer,
                             and Treasurer of BOK
                             Financial Corporation


 /s/ John C. Morrow          Controller of BOK              October 13, 1998
John C. Morrow               Financial Corporation


 /s/ W. Wayne Allen          Director of BOK Financial      October 13, 1998
W. Wayne Allen               Corporation


 /s/ James E. Barnes         Director of BOK Financial      October 13, 1998
James E. Barnes              Corporation


 /s/ Sharon J. Bell          Director of BOK Financial      October 13, 1998
Sharon J. Bell               Corporation

<PAGE>28

 /s/ Glenn A. Cox            Director of BOK Financial      October 13, 1998
Glenn A. Cox                 Corporation


 /s/ Robert H. Donaldson     Director of BOK Financial      October 13, 1998
Robert H. Donaldson          Corporation


 /s/ William E. Durrett      Director of BOK Financial      October 13, 1998
William E. Durrett           Corporation


 /s/ James O. Goodwin        Director of BOK Financial      October 13, 1998
James O. Goodwin             Corporation


 /s/ V. Burns Hargis         Director of BOK Financial      October 13, 1998
V. Burns Hargis              Corporation


 /s/ Howard E. Janzen        Director of BOK Financial      October 13, 1998
Howard E. Janzen             Corporation


 /s/ E. Carey Joullian IV    Director of BOK Financial      October 13, 1998
E. Carey Joullian IV         Corporation


 /s/ Robert J. LaFortune     Director of BOK Financial      October 13, 1998
Robert J. LaFortune          Corporation


 /s/ Philip C. Lauinger      Director of BOK Financial      October 13, 1998
Philip C. Lauinger           Corporation


 /s/ David R. Lopez          Director of BOK Financial      October 13, 1998
David R. Lopez               Corporation


 /s/ John Massey             Director of BOK Financial      October 13, 1998
John Massey                  Corporation


                             Director of BOK Financial      October 13, 1998
- ---------------------------- Corporation
Frank A. McPherson                   

<PAGE>29

 /s/ Steve E. Moore          Director of BOK Financial      October 13, 1998
Steve E. Moore               Corporation


 /s/ J. Larry Nichols        Director of BOK Financial      October 13, 1998
J. Larry Nichols             Corporation


                             Director of BOK Financial      October 13, 1998
- ---------------------------- Corporation
Robert L. Parker, Sr.        


 /s/ James W. Pielsticker    Director of BOK Financial      October 13, 1998
 James W. Pielsticker        Corporation
                 


 /s/ E.C. Richards           Director of BOK Financial      October 13, 1998
E.C. Richards                Corporation


 /s/ James A. Robinson       Director of BOK Financial      October 13, 1998
James A. Robinson            Corporation


                             Director of BOK Financial      October 13, 1998
- ---------------------------- Corporation
L. Francis Rooney            


 /s/ David J. Tipeconnic     Director of BOK Financial      October 13, 1998
David J. Tippeconnic         Corporation


                             Director of BOK Financial      October 13, 1998
- ---------------------------- Corporation
Tom E. Turner                


                             Director of BOK Financial      October 13, 1998
- ---------------------------- Corporation
Robert L. Zemanek            


<PAGE>                                 

                                INDEX TO EXHIBITS


Exhibit                                                      
Number   Description of Exhibits                                

1.0      Form of Underwriting Agreement

4.1      Form of Senior Debt Indenture

5.0      Opinion of Frederic Dorwart, Lawyers

23.0     Consent of Independent Auditors - Ernst & Young LLP

                                                       


                                   EXHIBIT 1.0

                             Underwriting Agreement

                                                       
<PAGE>ii


                             UNDERWRITING AGREEMENT

                          Dated as of ________ __, 19__

                                TABLE OF CONTENTS
                                                                             


SECTION 1. Representations and Warranties....................................2

           (a)     Representations and Warranties by the Company.............2

                   (i)      Compliance with Registration Requirements........2
                   (ii)     Incorporated Documents...........................3
                   (iii)    Independent Accountants..........................3
                   (iv)     Financial Statements.............................3
                   (v)      No Material Adverse Change in Business...........4
                   (vi)     Good Standing of the Company.....................4
                   (vii)    Good Standing of Subsidiaries....................4
                   (viii)   Capitalization...................................5
                   (ix)     Authorization of Agreement.......................5
                   (x)      Authorization and Description of Securities......5
                   (xi)     Absence of Defaults and Conflicts................5
                   (xii)    Absence of Labor Dispute.........................6
                   (xiii)   Absence of Proceedings...........................6
                   (xiv)    Exhibits.........................................6
                   (xv)     Absence of Further Requirements..................6
                   (xvi)    Possession of Licenses and Permits...............7
                   (xvii)   Title to Property................................7
                   (xviii)  Environmental Laws...............................8
                   (ix)     Not an Investment Company........................8

           (b)     Officer's Certificates....................................8

SECTION 2. Sale and Delivery to Underwriters; Closing........................8

           (a)     Securities................................................8
           (b)     Payment...................................................8
           (c)     Denominations; Registration...............................9

SECTION 3. Covenants of the Company..........................................9

           (a)     Compliance with Securities Regulations and 
                   Commission Requests.......................................9
           (b)     Filing of Amendments......................................9
           (c)     Delivery of Registration Statements......................10
           (d)     Delivery of Prospectuses.................................10

                                                       
<PAGE>iii


           (e)     Continued Compliance with Securities Laws................10
           (f)     Blue Sky Qualifications..................................10
           (g)     Rule 158 11
           (h)     Restriction on Sale of Securities........................11
           (i)     Reporting Requirements...................................11

SECTION 4. Payment of Expenses..............................................11

           (a)     Expenses 11
           (b)     Termination of Agreement.................................12

SECTION 5. Conditions of Underwriters' Obligations..........................12

           (a)     Effectiveness of Registration Statement..................12
           (b)     Opinion of Counsel for Company...........................12
           (c)     Opinion of Counsel for Underwriters......................12
           (d)     Officers' Certificate....................................12
           (e)     Accountant's Comfort Letter..............................13
           (f)     Bring-down Comfort Letter................................13
           (g)     No Objection.............................................13
           (h)     Additional Documents.....................................13
           (j)     Termination of Agreement.................................13

SECTION 6. Indemnification  14

           (a)     Indemnification by the Company...........................14
           (b)     Indemnification by the Underwriters......................15
           (c)     Actions against Parties; Notification....................15

SECTION 7. Contribution.....................................................16

SECTION 8. Representations, Warranties and Agreements to Survive Delivery...17

SECTION 9. Termination of Agreement.........................................17

           (a)     Termination; General.....................................17
           (b)     Liabilities..............................................18

SECTION 10.        Default by One or More of the Underwriters...............18

SECTION 11.        Default by the Company...................................18

SECTION 12.        Notices..................................................18

SECTION 13.        Parties..................................................19


                                                       
<PAGE>iv


SECTION 14.        Governing Law and Time...................................19

SECTION 15.        Effect of Headings.......................................19


                                                       
<PAGE>1


                             UNDERWRITING AGREEMENT

                              ______________, 199_



[NAME]
as Representative of the several Underwriters
[ADDRESS]

Ladies and Gentlemen:

         BOK Financial  Corporation,  an Oklahoma  corporation  (the "Company"),
confirms its agreement with  [Name]("[Name]") and each of the other Underwriters
named in Schedule A hereto  (collectively,  the "Underwriters," which term shall
also include any underwriter  substituted as hereinafter  provided in Section 10
hereof),  for whom [Name] is acting as  representative  (in such  capacity,  the
"Representative"),  with  respect to the  purchase by the  Underwriters,  acting
severally and not jointly,  of $______  principal amount of the [Title of Senior
Debt Securities] (the "Securities") of the Company, to be issued pursuant to the
provisions of an Indenture, dated as of ______________,  199_ (the "Indenture"),
between the Company and ____________, as Trustee (the "Trustee").

         The Company understands that the Underwriters  propose to make a public
offering of the Securities as soon as the  Representative  deems advisable after
this Agreement has been executed and delivered.
                  
         The Company has filed with the Securities and Exchange  Commission (the
"Commission") a registration statement on Form S-3 (No.  333-_________) covering
the  registration  of Senior  Debt  Securities  of the  Company,  including  the
Securities,  from time to time in accordance  with Rule 415 under the Securities
Act of 1933,  as amended (the "1933  Act"),  including  the related  preliminary
prospectus  or  prospectuses.  Promptly  after  execution  and  delivery of this
Agreement,  the  Company  will  either  (i)  prepare  and file a  prospectus  in
accordance  with the  provisions  of Rule  430A  ("Rule  430A") of the rules and
regulations  of the Commission  under the 1933 Act (the "1933 Act  Regulations")
and paragraph  (b) of Rule 424 ("Rule  424(b)") of the 1933 Act  Regulations  or
(ii) if the Company  has elected to rely upon Rule 434 ("Rule  434") of the 1933
Act  Regulations,  prepare and file a term sheet (a "Term  Sheet") in accordance
with the  provisions of Rule 434 and Rule 424(b).  The  information  included in
such prospectus or in such Term Sheet, as the case may be, that was omitted from
such  registration  statement at the time it became effective but that is deemed
to be part of such  registration  statement at the time it became  effective (a)
pursuant to paragraph (b) of Rule 430A is referred to as "Rule 430A Information"
or (b)  pursuant  to  paragraph  (d) of Rule 434 is  referred  to as  "Rule  434
Information."  Each prospectus used before such  registration  statement  became
effective,  and any  prospectus  that  omitted,  as  applicable,  the Rule  430A
Information or the Rule 434 Information,  that was used after such effectiveness
and prior to the  execution and delivery of this  Agreement,  is herein called a
"preliminary  prospectus." 


                                                       
<PAGE>2


Such registration statement,  including the exhibits thereto, schedules thereto,
if any, and the documents  incorporated by reference therein pursuant to Item 12
of Form S-3 under the 1933 Act, at the time it became  effective  and  including
the Rule 430A Information and the Rule 434 Information, as applicable, is herein
called the "Registration  Statement." Any registration  statement filed pursuant
to Rule 462(b) of the 1933 Act  Regulations  is herein  referred to as the "Rule
462(b)  Registration  Statement,"  and after such filing the term  "Registration
Statement"  shall  include the Rule  462(b)  Registration  Statement.  The final
prospectus,  including the documents  incorporated by reference therein pursuant
to Item 12 of Form S-3 under the 1933 Act,  in the form first  furnished  to the
Underwriters  for use in  connection  with the  offering of the  Securities,  is
herein called the  "Prospectus." If Rule 434 is relied on, the term "Prospectus"
shall refer to the preliminary prospectus dated ___, 199_ together with the Term
Sheet,  and all references in this Agreement to the date of the Prospectus shall
mean the date of the Term Sheet.

         All references in this Agreement to financial  statements and schedules
and other  information  which is  "contained,"  "included"  or  "stated"  in the
Registration  Statement,  any preliminary prospectus or the Prospectus (or other
references  of like  import)  shall  be  deemed  to mean  and  include  all such
financial  statements and schedules and other  information which is incorporated
by reference in the Registration  Statement,  any preliminary  prospectus or the
Prospectus,  as the  case  may be;  and all  references  in  this  Agreement  to
amendments  or  supplements  to  the  Registration  Statement,  any  preliminary
prospectus or the  Prospectus  shall be deemed to mean and include the filing of
any document  under the  Securities  Exchange Act of 1934, as amended (the "1934
Act"),  which is incorporated by reference in the Registration  Statement,  such
preliminary prospectus or the Prospectus, as the case may be.

         SECTION 1.  Representations and Warranties.

         (a)  Representations  and  Warranties  by  the  Company.   The  Company
represents and warrants to each  Underwriter as of the date hereof and as of the
Closing Time referred to in Section 2(b) hereof, as follows:

                  (i) Compliance  with  Registration  Requirements.  The Company
                  meets the requirements for use of Form S-3 under the 1933 Act.
                  Each  of  the  Registration  Statement  and  any  Rule  462(b)
                  Registration  Statement  has become  effective  under the 1933
                  Act;  no  stop  order  suspending  the  effectiveness  of  the
                  Registration   Statement  or  any  Rule  462(b)   Registration
                  Statement   has  been  issued   under  the  1933  Act  and  no
                  proceedings  for that  purpose  have  been  instituted  or are
                  pending or, to the knowledge of the Company,  are contemplated
                  by  the  Commission  and  any  request  on  the  part  of  the
                  Commission for additional information has been complied with.


                                                       
<PAGE>3


                  At the respective times the Registration  Statement,  any Rule
                  462(b)   Registration   Statement   and   any   post-effective
                  amendments  thereto became  effective and at the Closing Time,
                  the  Registration  Statement,  the  Rule  462(b)  Registration
                  Statement and any amendments and supplements  thereto complied
                  and will comply in all material respects with the requirements
                  of the 1933 Act and the 1933 Act  Regulations  and did not and
                  will not  contain an untrue  statement  of a material  fact or
                  omit to state a material fact required to be stated therein or
                  necessary  to make  the  statements  therein  not  misleading.
                  Neither  the  Prospectus  nor any  amendments  or  supplements
                  thereto,  at the time the  Prospectus or any such amendment or
                  supplement was filed and at the Closing Time, included or will
                  include an untrue  statement of a material  fact or omitted or
                  will omit to state a material fact  necessary in order to make
                  the  statements  therein,  in the  light of the  circumstances
                  under  which they were made,  not  misleading.  If Rule 434 is
                  used,  the Company will comply with the  requirements  of Rule
                  434. The  representations  and  warranties in this  subsection
                  shall not apply to (i)  statements  in or  omissions  from the
                  Registration  Statement,  any post- effective amendment to the
                  Registration  Statement,  the  Prospectus  or any amendment or
                  supplement  to the  Prospectus  made in  reliance  upon and in
                  conformity  with  information  furnished  to  the  Company  in
                  writing by any Underwriter through [Name] expressly for use in
                  the  Registration  Statement,   the  Prospectus  or  any  such
                  amendment or supplement or (ii) that part of the  Registration
                  Statement that constitutes the Statement of Eligibility  (Form
                  T-1) under the Trust  Indenture  Act of 1939,  as amended (the
                  "Trust Indenture Act") of the Trustee.

                  Each  preliminary  prospectus and the prospectus filed as part
                  of the  Registration  Statement as originally filed or as part
                  of any amendment thereto,  or filed pursuant to Rule 424 under
                  the 1933 Act,  complied when so filed in all material respects
                  with the 1933 Act and the 1933 Act Regulations.

                  (ii)  Incorporated  Documents.  The documents  incorporated or
                  deemed to be  incorporated  by reference  in the  Registration
                  Statement  and  the  Prospectus,  at the  time  they  were  or
                  hereafter  are filed with the  Commission,  complied  and will
                  comply in all material  respects with the  requirements of the
                  1934  Act and the  rules  and  regulations  of the  Commission
                  thereunder  (the  "1934  Act  Regulations"),  and,  when  read
                  together with the other information in the Prospectus,  at the
                  time the Registration Statement became effective,  at the time
                  the Prospectus was issued and at the Closing Time, did not and
                  will not  contain an untrue  statement  of a material  fact or
                  omit to state a material  fact  necessary in order to make the
                  statements  therein, in light of the circumstances under which
                  such statements were made, not misleading.

                  (iii) Independent  Accountants.  The accountants who certified
                  the financial  statements and supporting schedules included in
                  the Registration  Statement are independent public accountants
                  as required by the 1933 Act and the 1933 Act Regulations.

                                                       

<PAGE>4

                  (iv)  Financial  Statements.  The  consolidated  statements of
                  financial  condition,   consolidated   statements  of  income,
                  consolidated statements of changes in stockholders' equity and
                  consolidated   statements  of  cash  flows   included  in  the
                  Registration  Statement and the Prospectus,  together with the
                  related  schedules  and notes  (the  "Financial  Statements"),
                  present  fairly  in all  material  respects  the  consolidated
                  financial   position,   results  of  operations,   changes  in
                  stockholders'  equity  and cash flows of the  Company  and its
                  consolidated  subsidiaries at the dates indicated and, for the
                  periods specified,  as the case may be, subject in the case of
                  unaudited  balance  sheets and  statements to normal  year-end
                  audit  adjustments;   said  Financial   Statements  have  been
                  prepared in  conformity  with  generally  accepted  accounting
                  principles  ("GAAP")  applied on a consistent basis throughout
                  the periods involved,  except as may be noted therein, subject
                  in the case of  unaudited  balance  sheets and  statements  to
                  normal year-end audit adjustments and the limited scope of the
                  notes thereto.

                  (v)  No  Material  Adverse  Change  in  Business.   Since  the
                  respective  dates  as of  which  information  is  given in the
                  Registration Statement and the Prospectus, except as otherwise
                  stated therein, (A) there has been no material adverse change,
                  or  development   involving  a  prospective  material  adverse
                  change,  in the financial  condition,  results of operation or
                  stockholders'  equity  of the  Company  and  its  subsidiaries
                  considered  as one  enterprise,  whether or not arising in the
                  ordinary course of business (a "Material Adverse Effect"), (B)
                  there have been no transactions entered into by the Company or
                  any of its  subsidiaries,  other  than  those in the  ordinary
                  course of  business,  which are  material  with respect to the
                  Company and its subsidiaries considered as one enterprise, and
                  (C) there has been no  dividend  or  distribution  of any kind
                  declared,  paid or made by the  Company  on any  class  of its
                  capital stock.

                  (vi) Good  Standing of the Company.  The Company has been duly
                  organized  and is validly  existing as a  corporation  in good
                  standing  under  the  laws of the  State of  Delaware  and has
                  corporate  power and  authority to own,  lease and operate its
                  properties  and  to  conduct  its  business  in  all  material
                  respects as described in the  Prospectus and to enter into and
                  perform its obligations under this Agreement;  and the Company
                  is  duly  qualified  as  a  foreign  corporation  to  transact
                  business and is in good standing in each other jurisdiction in
                  which such qualification is required, whether by reason of the
                  ownership  or leasing of property or the conduct of  business,
                  except  where  the  failure  so to  qualify  or to be in  good
                  standing would not result in a Material Adverse Effect.


                                                       
<PAGE>5


                  (vii) Good  Standing of  Subsidiaries.  The Bank of  Oklahoma,
                  National Association, Bank of Texas, National Association, and
                  Bank of Arkansas, National Association (the "Banks") have been
                  duly  organized and are validly  existing as national  banking
                  associations;  the Banks'  deposit  accounts are insured up to
                  applicable   limits   by   the   Federal   Deposit   Insurance
                  Corporation;   and  no  proceeding  for  the   termination  or
                  revocation  of such  insurance is pending or, to the knowledge
                  of the Company or the Banks,  threatened.  The Banks and BOSC,
                  Inc. are the only  "significant  subsidiaries"  of the Company
                  (as such term is defined in Rule 1-02 of  Regulation  S-X) and
                  each has power and  authority  to own,  lease and  operate its
                  properties  and  to  conduct  its  business  in  all  material
                  respects as described in the  Prospectus and is duly qualified
                  to  transact   business  and  is  in  good  standing  in  each
                  jurisdiction in which such qualification is required,  whether
                  by reason of the  ownership  or  leasing  of  property  or the
                  conduct of business, except where the failure so to qualify or
                  to be in good standing would not result in a Material  Adverse
                  Effect;  except as  otherwise  disclosed  in the  Registration
                  Statement,  all of the issued and outstanding capital stock of
                  the Bank has been duly authorized and validly issued, is fully
                  paid and non-assessable and is owned by the Company,  directly
                  or  through  subsidiaries,  free  and  clear  of any  security
                  interest,  mortgage,  pledge,  lien,  encumbrance,   claim  or
                  equity; none of the outstanding shares of capital stock of the
                  Bank was  issued in  violation  of the  preemptive  or similar
                  rights of any security holder of such Subsidiary.

                  (viii) Capitalization. The Company had at the date indicated a
                  duly authorized and outstanding capitalization as set forth in
                  the Registration Statement.

                  (ix) Authorization of Agreement and Indenture.  This Agreement
                  has  been  duly  authorized,  executed  and  delivered  by the
                  Company. The Indenture has been duly qualified under the Trust
                  Indenture  Act and has  been  duly  authorized,  executed  and
                  delivered by the Company and is a valid and binding  agreement
                  of the  Company,  enforceable  in  accordance  with its terms,
                  subject to applicable  bankruptcy,  insolvency or similar laws
                  affecting  creditors' rights generally and general  principles
                  of equity.

                  (x)   Authorization   and   Description  of  Securities.   The
                  Securities  have been duly  authorized  and,  when  issued and
                  authenticated   in  accordance  with  the  provisions  of  the
                  Indenture and delivered  against payment  therefor as provided
                  herein,  will be entitled to the benefits of the Indenture and
                  will  be  valid  and  binding   obligations  of  the  Company,
                  enforceable  in  accordance  with  their  terms,   subject  to
                  applicable  bankruptcy,  insolvency or similar laws  affecting
                  creditors' rights generally and general  principles of equity.
                  The Securities  conform to the  description  thereof under the
                  heading  "Description of Senior Debt Securities"  contained in
                  the Prospectus and such description, insofar as it purports to
                  be a summary of the instruments defining the rights of holders
                  of the  Securities,  is  accurate,  complete  and  fair in all
                  material respects.


                                                       
<PAGE>6


                  (xi)  Absence of Defaults and  Conflicts.  Neither the Company
                  nor any of its  subsidiaries is in violation of its charter or
                  by-laws or in default in the  performance or observance of any
                  obligation,  agreement, covenant or condition contained in any
                  contract,  indenture,  mortgage, deed of trust, loan or credit
                  agreement,  note,  lease or other  agreement or  instrument to
                  which the Company or any of its  subsidiaries is a party or by
                  which it or any of them may be  bound,  or to which any of the
                  property or assets of the Company or any subsidiary is subject
                  (collectively,  "Agreements and Instruments")  except for such
                  defaults that would not result in a Material  Adverse  Effect;
                  and the execution,  delivery and performance of this Agreement
                  and the Indenture  and the  consummation  of the  transactions
                  contemplated  herein, in the Indenture and in the Registration
                  Statement  (including the issuance and sale of the Securities)
                  and compliance by the Company with its  obligations  hereunder
                  and under the  Indenture  have  been  duly  authorized  by all
                  necessary  corporate  action and do not and will not,  whether
                  with or  without  the  giving of notice or  passage of time or
                  both,  conflict  with or  constitute  a breach of,  default or
                  Repayment  Event (as defined  below)  under,  or result in the
                  creation or imposition of any lien, charge or encumbrance upon
                  any  property  or  assets  of the  Company  or any  subsidiary
                  pursuant to, the Agreements and  Instruments  (except for such
                  conflicts,   breaches  or   defaults  or  liens,   charges  or
                  encumbrances  that  would  not  result in a  Material  Adverse
                  Effect),  nor will such action  result in any violation of the
                  provisions  of the  charter or  by-laws of the  Company or any
                  subsidiary or any applicable law, statute,  rule,  regulation,
                  judgment,   order,   writ  or   decree   of  any   government,
                  governmental  instrumentality  or court,  domestic or foreign,
                  having  jurisdiction over the Company or any subsidiary or any
                  of their assets or  properties.  As used herein,  a "Repayment
                  Event" means any event or condition  which gives the holder of
                  any note,  debenture or other evidence of indebtedness (or any
                  person  acting on such  holder's  behalf) the right to require
                  the repurchase, redemption or repayment of all or a portion of
                  such indebtedness by the Company or any subsidiary.

                  (xii)  Absence of Labor  Dispute.  No labor  dispute  with the
                  employees of the Company or any  subsidiary  exists or, to the
                  knowledge of the Company, is imminent,  and the Company is not
                  aware of any  existing or imminent  labor  disturbance  by the
                  employees  of  any  of  its  or  any  subsidiary's   principal
                  suppliers, manufacturers,  customers or contractors, which, in
                  either  case,  may  reasonably  be  expected  to  result  in a
                  Material Adverse Effect.

                  (xiii)  Absence  of  Proceedings.  There is no  action,  suit,
                  proceeding,  inquiry or investigation before or brought by any
                  court or governmental agency or body, domestic or foreign, now
                  pending,  or, to the  knowledge  of the  Company,  threatened,
                  against or affecting the Company or any  subsidiary,  which is
                  required to be disclosed in the Registration  Statement (other
                  than as  disclosed  therein),  or which  might  reasonably  be
                  expected to result in a Material Adverse Effect (other than as
                  disclosed  in the  Registration  Statement),  or  which  might
                  reasonably be expected to materially and adversely  affect the
                  properties or assets  thereof  (other than as disclosed in the
                  Registration   Statement)   or   the   consummation   of   the
                  transactions contemplated in this Agreement or the performance
                  by the Company of its obligations hereunder.

                  (xiv) Exhibits.  There are no contracts or documents which are
                  required to be described in the  Registration  Statement,  the
                  Prospectus or the documents incorporated by reference therein,
                  or to be filed as  exhibits  thereto,  which  have not been so
                  described or filed as required.

                                                       

<PAGE>7


                  (xv)  Absence  of Further  Requirements.  No filing  with,  or
                  authorization,     approval,    consent,    license,    order,
                  registration,   qualification  or  decree  of,  any  court  or
                  governmental  authority or agency is necessary or required for
                  the performance by the Company of its  obligations  hereunder,
                  in  connection  with  the  offering,  issuance  or sale of the
                  Securities  hereunder or the  consummation of the transactions
                  contemplated  by this  Agreement,  except  such  as have  been
                  already  obtained or as may be required  under the 1933 Act or
                  the 1933 Act Regulations or state securities laws.

                  (xvi) Possession of Licenses and Permits.  The Company and its
                  subsidiaries  possess  such  permits,   licenses,   approvals,
                  consents and other authorizations (collectively, "Governmental
                  Licenses") issued by the appropriate federal,  state, local or
                  foreign regulatory agencies or bodies necessary to conduct the
                  business   now   operated   by  them;   the  Company  and  its
                  subsidiaries  are in compliance  with the terms and conditions
                  of all such Governmental Licenses, except where the failure so
                  to  comply  would  not,  singly  or in the  aggregate,  have a
                  Material Adverse Effect; all of the Governmental  Licenses are
                  valid and in full force and effect, except when the invalidity
                  of  such   Governmental   Licenses  or  the  failure  of  such
                  Governmental Licenses to be in full force and effect would not
                  have a Material  Adverse  Effect;  and neither the Company nor
                  any of its subsidiaries has received any notice of proceedings
                  relating  to  the  revocation  or  modification  of  any  such
                  Governmental  Licenses which,  singly or in the aggregate,  if
                  the  subject of an  unfavorable  decision,  ruling or finding,
                  would result in a Material Adverse Effect.

                  (xvii)  Title to  Property.  The Company and its  subsidiaries
                  have good and marketable title to all real property  reflected
                  in the most recent balance sheet included in the Prospectus as
                  owned by the  Company and its  subsidiaries  and good title to
                  all other  properties  reflected  in the most  recent  balance
                  sheet  included in the  Prospectus  as owned by them,  in each
                  case,  free  and  clear  of  all  mortgages,  pledges,  liens,
                  security  interests,  claims,  restrictions or encumbrances of
                  any kind except such as (a) are described in the Prospectus or
                  (b) do not, singly or in the aggregate,  materially  interfere
                  with the use made and proposed to be made of such  property by
                  the Company or any of its subsidiaries or, with respect to any
                  such real property, render title unmarketable as to a material
                  part thereof;  and all of the leases and subleases material to
                  the business of the Company and its  subsidiaries,  considered
                  as one  enterprise,  and under which the Company or any of its
                  subsidiaries holds properties described in the Prospectus, are
                  in full force and  effect,  and  neither  the  Company nor any
                  subsidiary  has any notice of any  material  claim of any sort
                  that has been asserted by anyone  adverse to the rights of the
                  Company or any subsidiary under any of the leases or subleases
                  mentioned above, or affecting or questioning the rights of the
                  Company or such subsidiary to the continued  possession of the
                  leased or subleased premises under any such lease or sublease.


                                                       
<PAGE>8


                  (xiii)   Environmental   Laws.  Except  as  described  in  the
                  Registration  Statement  or except as would not,  singly or in
                  the  aggregate,  result  in a  Material  Adverse  Effect:  (A)
                  neither  the  Company  nor  any  of  its  subsidiaries  is  in
                  violation of any  federal,  state,  local or foreign  statute,
                  law,  rule,  regulation,  ordinance,  code,  policy or rule of
                  common law or any  judicial or  administrative  interpretation
                  thereof,  including  any  judicial  or  administrative  order,
                  consent,   decree  or  judgment,   relating  to  pollution  or
                  protection  of  human  health,  the  environment   (including,
                  without limitation,  ambient air, surface water,  groundwater,
                  land surface or  subsurface  strata) or  wildlife,  including,
                  without  limitation,  laws  and  regulations  relating  to the
                  release  or  threatened  release  of  chemicals,   pollutants,
                  contaminants,  wastes, toxic substances, hazardous substances,
                  petroleum  or  petroleum  products  (collectively,  "Hazardous
                  Materials") or to the manufacture,  processing,  distribution,
                  use, treatment,  storage,  disposal,  transport or handling of
                  Hazardous Materials (collectively,  "Environmental Laws"), (B)
                  the   Company   and  its   subsidiaries   have  all   permits,
                  authorizations  and approvals  required  under any  applicable
                  Environmental  Laws  and are  each in  compliance  with  their
                  requirements,   (C)  there  are  no  pending   or   threatened
                  administrative,   regulatory  or  judicial   actions,   suits,
                  demands,   demand   letters,   claims,   liens,   notices   of
                  noncompliance  or  violation,   investigation  or  proceedings
                  relating to any  Environmental  Law against the Company or any
                  of  its   subsidiaries   and  (D)   there  are  no  events  or
                  circumstances  that might  reasonably  be expected to form the
                  basis of an order for  clean-up or  redemption,  or an action,
                  suit or proceeding by any private party or  governmental  body
                  or agency,  against  or  affecting  the  Company or any of its
                  subsidiaries   relating   to   Hazardous   Materials   or  any
                  Environmental Laws.

                  (ix)  Not  an  Investment  Company.  The  Company  is  not  an
                  "investment   company"  or  a  company   "controlled   by"  an
                  "investment  company"  within the  meaning  of the  Investment
                  Company Act of 1940, as amended.

         (b) Officer's  Certificates.  Any certificate  signed by any officer of
the Company or any of its  subsidiaries  delivered to the  Representative  or to
counsel for the Underwriters  shall be deemed a  representation  and warranty by
the Company to each  Underwriters  as to the matters  covered  thereby,  without
personal liability for the officer signing such certificate.

         SECTION 2. Sale and Delivery to Underwriters; Closing.

         (a)  Securities.  On the basis of the  representations  and  warranties
herein  contained and subject to the terms and conditions  herein set forth, the
Company agrees to sell to each Underwriter,  severally and not jointly, and each
Underwriter,  severally and not jointly, agrees to purchase from the Company, at
the price set forth in Schedule B, the principal  amount of Securities set forth
in  Schedule  A  opposite  the  name of the  Underwriter,  plus  any  additional
principal  amount of Securities  which such  Underwriter may become obligated to
purchase pursuant to the provisions of Section 10 hereof.

                                                       

<PAGE>9


         (b) Payment.  Payment  shall be made to the Company by wire transfer of
immediately  available funds to a bank account designated by the Company against
delivery by the Company to the Representative for the respective accounts of the
Underwriters  of  certificates  for the  Securities to be purchased by them. The
time and date of such payment and delivery shall be 10:00 A.M. (Eastern time) on
the third (fourth,  if the pricing occurs after 4:30 P.M.  (Eastern time) on any
given day)  business day after the date hereof  (unless  postponed in accordance
with the  provisions  of  Section  10),  or such  other  time not later than ten
business days after such date as shall be agreed upon by the  Representative and
the Company (such time and date of payment and delivery  being herein called the
"Closing  Time").  It is understood  that each  Underwriter  has  authorized the
Representative,  for its account,  to accept  delivery of, receipt for, and make
payment  of the  purchase  price  for,  the  Securities  that it has  agreed  to
purchase.  [Name],  individually and not as  representative of the Underwriters,
may (but shall not be obligated  to) make payment of the purchase  price for the
Securities to be purchased by any Underwriter whose funds have not been received
by the Closing Time but such payment shall not relieve such Underwriter from its
obligations hereunder.

         (c) Denominations;  Registration. Certificates for the Securities shall
be in such  denominations and registered in such names as the Representative may
request in writing at least one full business day before the Closing  Time.  The
certificates  for the  Securities  will be made  available for  examination  and
packaging by the  Representative  in The City of [New York] not later than 10:00
A.M. (Eastern time) on the business day prior to the Closing Time.

         SECTION 3.  Covenants of the Company.  The Company covenants with each 
                     Underwriter as follows:

         (a) Compliance with Securities Regulations and Commission Requests. The
Company, subject to Section 3(b), will comply with the requirements of Rule 430A
or Rule 434, as applicable,  and will notify the  Representative  promptly,  and
confirm  the notice in writing,  (i) when any  post-effective  amendment  to the
Registration  Statement  shall  become  effective,  or  any  supplement  to  the
Prospectus or any amended  Prospectus shall have been filed, (ii) of the receipt
of any comments from the Commission,  (iii) of any request by the Commission for
any  amendment to the  Registration  Statement or any amendment or supplement to
the  Prospectus or for additional  information,  and (iv) of the issuance by the
Commission of any stop order  suspending the  effectiveness  of the Registration
Statement or of any order  preventing or suspending  the use of any  preliminary
prospectus,  or of the  suspension of the  qualification  of the  Securities for
offering or sale in any jurisdiction, or of the initiation or threatening of any
proceedings  for any of such  purposes.  The Company  will  promptly  effect the
filings  necessary  pursuant to Rule 424(b) and will take such steps as it deems
necessary to ascertain  promptly whether the form of prospectus  transmitted for
filing under Rule 424(b) was received for filing by the  Commission  and, in the
event that it was not, it will promptly file such  prospectus.  The Company will
make every  reasonable  effort to prevent the issuance of any stop order and, if
any stop order is issued, to obtain the lifting thereof at the earliest possible
moment.

                                                       

<PAGE>10


         (b) Filing of  Amendments.  The  Company  will give the  Representative
notice of its  intention to file or prepare any  amendment  to the  Registration
Statement  (including  any  filing  under  Rule  462(b)),  any Term Sheet or any
amendment,  supplement  or  revision  to either the  prospectus  included in the
Registration  Statement at the time it became  effective  or to the  Prospectus,
whether  pursuant to the 1933 Act, the 1934 Act or  otherwise,  will furnish the
Representative  with copies of any such  documents a  reasonable  amount of time
prior to such  proposed  filing or use, as the case may be, and will not file or
use  any  such  document  to  which  the   Representative  or  counsel  for  the
Underwriters shall object.

         (c) Delivery of Registration  Statements.  The Company has furnished or
will deliver to the  Representative  and counsel for the  Underwriters,  without
charge,  signed copies of the Registration  Statement as originally filed and of
each amendment  thereto  (including  exhibits filed therewith or incorporated by
reference  therein and documents  incorporated  or deemed to be  incorporated by
reference  therein)  and  signed  copies of all  consents  and  certificates  of
experts,  and  will  also  deliver  to the  Representative,  without  charge,  a
conformed  copy of the  Registration  Statement as originally  filed and of each
amendment thereto (without exhibits) for each of the Underwriters.

         (d)  Delivery  of  Prospectuses.  The  Company  has  delivered  to each
Underwriter,  without charge,  as many copies of each preliminary  prospectus as
such Underwriter  reasonably  requested,  and the Company hereby consents to the
use of such copies for  purposes  permitted  by the 1933 Act.  The Company  will
furnish  to each  Underwriter,  without  charge,  during  the  period  when  the
Prospectus is required to be delivered  under the 1933 Act or the 1934 Act, such
number  of  copies  of the  Prospectus  (as  amended  or  supplemented)  as such
Underwriter may reasonably request.

         (e) Continued  Compliance with Securities Laws. The Company will comply
with the 1933 Act and the 1933 Act Regulations and the 1934 Act and the 1934 Act
Regulations to the extent necessary to permit the completion of the distribution
of the Securities as contemplated in this Agreement and in the Prospectus. If at
any time  when a  prospectus  is  required  by the 1933 Act to be  delivered  in
connection  with sales of the  Securities,  any event shall  occur or  condition
shall  exist  as a  result  of  which it is  necessary,  in the  opinion  of the
Underwriters  or the  Company,  based  upon  advice  of  counsel,  to amend  the
Registration  Statement or amend or supplement  the Prospectus in order that the
Prospectus  will not include any untrue  statement of a material fact or omit to
state a material fact necessary in order to make the statements  therein, in the
light of the  circumstances  under which they were made when such  Prospectus is
delivered,  not misleading,  or if it shall be necessary, in the opinion of such
party,  based  upon  the  advice  of  counsel,  at any such  time to  amend  the
Registration  Statement or amend or supplement the Prospectus in order to comply
with the requirements of the 1933 Act or the 1933 Act  Regulations,  the Company
will  promptly  prepare and file with the  Commission,  subject to Section 3(b),
such  amendment or supplement  as may be necessary to correct such  statement or
omission or to make the  Registration  Statement or the  Prospectus  comply with
such requirements,  and the Company will furnish to the Underwriters such number
of copies of such  amendment or supplement as the  Underwriters  may  reasonably
request.

                                                       

<PAGE>11


         (f) Blue Sky Qualifications.  The Company will use its best efforts, in
cooperation  with the  Underwriters,  to qualify the Securities for offering and
sale under the applicable securities laws of such states and other jurisdictions
as the  Representative  may  designate and to maintain  such  qualifications  in
effect  for  as  long  as may be  necessary  to  complete  the  distribution  of
Securities  provided,  however,  that the Company shall not be obligated to file
any general consent to service of process or to qualify as a foreign corporation
or as a dealer in securities in any jurisdiction in which it is not so qualified
or  to  subject  itself  to  taxation  in  respect  of  doing  business  in  any
jurisdiction in which it is not otherwise so subject.

         (g) Rule 158. The Company will timely file such reports pursuant to the
1934 Act as are necessary in order to make  generally  available to its security
holders as soon as practicable an earnings statement for the purposes of, and to
provide the benefits contemplated by, the last paragraph of Section 11(a) of the
1933 Act.

         (h) Restriction on Sale of Securities. During a period beginning on the
date hereof and  continuing to and including the Closing Time,  the Company will
not, without the prior written consent of [Name], directly or indirectly, offer,
pledge,  sell,  contract  to sell,  sell any  option or  contract  to  purchase,
purchase any option or contract to sell,  grant any option,  right or warrant to
purchase  or  otherwise  transfer  or  dispose  of any  Senior  Debt  Securities
substantially  similar to the  Securities,  except that the  foregoing  sentence
shall not apply to (A) the  Securities to be sold  hereunder and (B)  commercial
paper issued in the ordinary course of business.

         (i)  Reporting  Requirements.  The Company,  during the period when the
Prospectus is required to be delivered  under the 1933 Act or the 1934 Act, will
file all documents required to be filed with the Commission pursuant to the 1934
Act  within  the  time  periods  required  by the  1934  Act  and the  1934  Act
Regulations  and the Company will cause the Bank to file all documents  required
to be filed with any  supervisory,  regulatory,  administrative  or governmental
agency,  body or  authority,  whether  pursuant to the 1934 Act and the 1934 Act
Regulations  or  otherwise  (except  reports  to any bank or  thrift  regulatory
agencies prepared on a confidential basis), except when the failure to file such
documents could not reasonably be expected to result, directly or indirectly, in
a Material Adverse Effect.

         SECTION 4.  Payment of Expenses.

         (a)  Expenses.  The  Company  covenants  and  agrees  with the  several
Underwriters  that (a) the Company will pay the following  expenses  incident to
this Agreement:  (i) the  preparation,  printing and filing of the  Registration
Statement  (including financial statements and exhibits) as originally filed and
of each amendment  thereto,  (ii) the preparation,  printing and delivery to the
Underwriters of this Agreement,  any Agreement among Underwriters and such other
documents as may be required in connection  with the offering,  purchase,  sale,
issuance or delivery of the  Securities,  (iii) the  preparation,  issuance  and
delivery of the  certificates for the Securities to the  Underwriters,  (iv) the
fees and disbursements of the Company's counsel, accountants and other advisors,
(v) the qualification of the Securities under securities laws in accordance with
the provisions of Section 3(f) hereof,  including filing fees and the reasonable
fees and  disbursements of counsel for the Underwriters in connection  therewith
and in connection with the preparation of the Blue Sky Survey and any supplement
thereto,  (vi) the printing and delivery to the  Underwriters  of copies of each
preliminary prospectus, any Term Sheets and of the Prospectus and any amendments
or  supplements  thereto,  (vii) the fees and expenses of any transfer  agent or
registrar  for the  Securities,  (viii) the  filing  fees  incident  to, and the
reasonable fees and  disbursements  of counsel to the Underwriters in connection
with, the review by the NASD of the terms of the sale of the Securities and (ix)
any fees payable in connection with the rating of the Securities.

                                                       
<PAGE>12

         (b)  Termination  of Agreement.  If this Agreement is terminated by the
Representative  in accordance  with the provisions of Section 5, Section 9(a)(i)
or Section 11 hereof,  the Company shall reimburse the  Underwriters  for all of
their  reasonable  out-of-pocket  expenses,  including the  reasonable  fees and
disbursements of counsel for the Underwriters.

         SECTION 5. Conditions of Underwriters' Obligations.  The obligations of
the  several  Underwriters  hereunder  are  subject to the  accuracy,  as of the
Closing Time, of the  representations and warranties of the Company contained in
Section  1 hereof  or in  certificates  of any  officer  of the  Company  or any
subsidiary of the Company  delivered  pursuant to the provisions  hereof, to the
performance by the Company of its covenants and other  obligations  hereunder to
be  performed  at or prior to the Closing  Time,  and to the  following  further
conditions:

         (a)   Effectiveness   of  Registration   Statement.   The  Registration
Statement,   including  any  Rule  462(b)  Registration  Statement,  has  become
effective and at the Closing Time no stop order suspending the  effectiveness of
the  Registration  Statement  shall  have  been  issued  under  the  1933 Act or
proceedings therefor initiated or threatened by the Commission,  and any request
on the  part of the  Commission  for  additional  information  shall  have  been
complied with to the reasonable  satisfaction of counsel to the Underwriters.  A
prospectus  containing the Rule 430A Information  shall have been filed with the
Commission  in  accordance  with  Rule  424(b)  (or a  post-effective  amendment
providing  such  information  shall have been filed and  declared  effective  in
accordance with the requirements of Rule 430A) or, if the Company has elected to
rely upon Rule 434, a Term Sheet  shall have been filed with the  Commission  in
accordance with Rule 424(b).

         (b) Opinion of Counsel for Company. At Closing Time, the Representative
shall have received the favorable opinion, dated as of Closing Time, of Frederic
Dorwart,  Lawyers, General Counsel for the Company, in each instance in form and
substance reasonably satisfactory to counsel for the Underwriters,  collectively
to the effect set forth in Exhibit A hereto.

         (c)  Opinion  of  Counsel  for  Underwriters.   At  Closing  Time,  the
Representative  shall have received the favorable  opinion,  dated as of Closing
Time, of [Name],  counsel for the Underwriters,  with respect to such matters as
they may reasonably request. In giving such opinion such counsel may rely, as to
all  matters  governed  by the laws of  jurisdictions  other than the law of the
State of New  York,  the  federal  law of the  United  States,  and the  General
Corporation  Law  of the  State  of  Delaware,  upon  the  opinions  of  counsel
satisfactory to the Representative. Such counsel may also state that, insofar as
such opinion involves factual matters, they have relied, to the extent they deem
proper,  upon  certificates of officers of the Company and its  subsidiaries and
certificates of public officials.

                                                       

<PAGE>13


         (d) Officers' Certificate.  At Closing Time, there shall not have been,
since the date hereof or since the respective  dates as of which  information is
given in the Prospectus, any material adverse change, or development involving a
prospective  material  adverse change,  in the financial  condition,  results of
operations  or  stockholders'   equity  of  the  Company  and  its  subsidiaries
considered as one  enterprise,  whether or not arising in the ordinary course of
business, and the Representative shall have received a certificate signed by the
President or a Vice President of the Company and by the chief financial or chief
accounting officer of the Company,  dated as of Closing Time, to the effect that
(i) there has been no such material adverse change, (ii) the representations and
warranties  in Section  1(a) hereof are true and correct with the same force and
effect as though expressly made at and as of Closing Time, (iii) the Company has
complied with all  agreements  and  satisfied  all  conditions on its part to be
performed  or  satisfied  at or prior to  Closing  Time,  and (iv) no stop order
suspending the  effectiveness of the Registration  Statement has been issued and
no  proceedings  for that  purpose  have been  instituted  or are pending or are
contemplated by the Commission.

         (e) Accountant's  Comfort Letter.  At the time of the execution of this
Agreement,  the  Representative  shall  have  received  from Ernst & Young LLP a
letter   dated  such  date,   in  form  and   substance   satisfactory   to  the
Representative,  together  with signed or  reproduced  copies of such letter for
each of the other  Underwriters,  containing  statements and  information of the
type ordinarily included in accountants'  "comfort letters" to underwriters with
respect to the financial statements and certain financial  information contained
in the Registration Statement and the Prospectus.

         (f) Bring-down  Comfort  Letter.  At Closing Time,  the  Representative
shall have received from Ernst and Young LLP a letter, dated as of Closing Time,
to the effect that it  reaffirms  the  statements  made in the letter  furnished
pursuant to  subsection  (e) of this  Section,  except that the  specified  date
referred to shall be a date not more than three  business  days prior to Closing
Time.

         (g) No  Objection.  The NASD shall not have raised any  objection  with
respect  to the  fairness  and  reasonableness  of the  underwriting  terms  and
arrangements.

         (h)  Additional  Documents.  At  the  Closing  Time,  counsel  for  the
Underwriters  shall have been furnished with such documents and opinions as they
may  reasonably  require  for the  purpose  of  enabling  them to pass  upon the
issuance  and sale of the  Securities  as  herein  contemplated,  or in order to
evidence  the  accuracy  of any of the  representations  or  warranties,  or the
fulfillment of any of the  conditions,  herein  contained;  and all  proceedings
taken by the Company in connection  with the issuance and sale of the Securities
as herein contemplated shall be reasonably satisfactory in form and substance to
the Representative and counsel for the Underwriters.

         (j)  Termination  of  Agreement.  If any  condition  specified  in this
Section shall not have been fulfilled when and as required to be fulfilled, this
Agreement may be terminated  by the  Representative  by notice to the Company at
any time at or prior to  Closing  Time,  and such  termination  shall be without
liability of any party to any other party,  except as provided in Section 4, and
except that Sections 1, 6, 7 and 8 shall survive any such termination and remain
in full force and effect.

                                                       

<PAGE>14


         SECTION 6.  Indemnification.

         (a) Indemnification by the Company. The Company agrees to indemnify and
hold  harmless  each  Underwriter  and each  person,  if any,  who  controls any
Underwriter  within  the  meaning of Section 15 of the 1933 Act or Section 20 of
the 1934 Act to the extent and in the manner as set forth below:

                  (i) against  any and all loss,  liability,  claim,  damage and
                  expense  whatsoever,  as  incurred,  arising out of any untrue
                  statement  or alleged  untrue  statement  of a  material  fact
                  contained  in the  Registration  Statement  (or any  amendment
                  thereto), including the Rule 430A Information and the Rule 434
                  Information,   if  applicable,  or  the  omission  or  alleged
                  omission  therefrom of a material  fact  required to be stated
                  therein  or  necessary  to make  the  statements  therein  not
                  misleading  or arising out of any untrue  statement or alleged
                  untrue   statement  of  a  material  fact   contained  in  any
                  preliminary  prospectus or the Prospectus (or any amendment or
                  supplement  thereto),  or the  omission  or  alleged  omission
                  therefrom  of a material  fact  necessary in order to make the
                  statements  therein,  in the light of the circumstances  under
                  which they were made, not misleading;

                  (ii) against any and all loss,  liability,  claim,  damage and
                  expense  whatsoever,   as  incurred,  to  the  extent  of  the
                  aggregate amount paid in settlement of any litigation,  or any
                  investigation  or  proceeding  by any  governmental  agency or
                  body,  commenced  or  threatened,  or of any claim  whatsoever
                  based upon any such untrue statement or omission,  or any such
                  alleged untrue  statement or omission;  provided that any such
                  settlement  is  effected  with  the  written  consent  of  the
                  Company; and

                  (iii)  against  any and all  expense  whatsoever,  as incurred
                  (including  the fees and  disbursements  of counsel  chosen by
                  [Name]),  reasonably  incurred in investigating,  preparing or
                  defending  against any  litigation,  or any  investigation  or
                  proceeding by any  governmental  agency or body,  commenced or
                  threatened, or any claim whatsoever based upon any such untrue
                  statement or omission, or any such alleged untrue statement or
                  omission,  to the  extent  that any such  expense  is not paid
                  under  (i)  or  (ii)  above;  provided,   however,  that  this
                  indemnity  agreement  shall not apply to any loss,  liability,
                  claim,  damage or  expense to the  extent  arising  out of any
                  untrue  statement or omission or alleged  untrue  statement or
                  omission made in reliance upon and in conformity  with written
                  information  furnished  to  the  Company  by  any  Underwriter
                  through  [Name],   expressly  for  use  in  the   Registration
                  Statement (or any amendment thereto),  including the Rule 430A
                  Information and the Rule 434  Information,  if applicable,  or
                  any preliminary prospectus or the Prospectus (or any amendment
                  or  supplement   thereto);   and  provided  further  that  the
                  foregoing indemnity with respect to any preliminary prospectus
                  shall not inure to the benefit of any  Underwriter  (or to the
                  benefit of any person  controlling such Underwriter) from whom
                  the person asserting any such loss, liability, claim or damage


                                                       
<PAGE>15

                  purchased  Securities if such untrue  statement or omission or
                  alleged untrue  statement or omission made in such preliminary
                  prospectus  is eliminated  or remedied in the  Prospectus  (as
                  amended or  supplemented  by the Company if the Company  shall
                  have furnished any  amendments or  supplements  thereto) and a
                  copy of the Prospectus (as so amended or supplemented),  which
                  at such time had been provided to the  Underwriters  for their
                  use,  shall not have been furnished to such person at or prior
                  to the written confirmation of sale of such Securities to such
                  person.

         (b)  Indemnification  by the Underwriters.  Each Underwriter  severally
agrees to indemnify and hold harmless the Company,  its  directors,  each of its
officers who signed the  Registration  Statement,  and each person,  if any, who
controls the Company within the meaning of Section 15 of the 1933 Act or Section
20 of the 1934 Act, and the Company, against any and all loss, liability, claim,
damage and expense  described in the indemnity  contained in  subsection  (a) of
this  Section,  as  incurred,  but only with  respect  to untrue  statements  or
omissions,  or alleged untrue statements or omissions,  made in the Registration
Statement (or any amendment  thereto),  including the Rule 430A  Information and
the Rule 434 Information,  if applicable,  or any preliminary  prospectus or the
Prospectus  (or any  amendment or  supplement  thereto) in reliance  upon and in
conformity with written information furnished to the Company by such Underwriter
through [Name] expressly for use in the Registration Statement (or any amendment
thereto) or such  preliminary  prospectus or the Prospectus (or any amendment or
supplement thereto).

         (c) Actions against Parties; Notification. Each indemnified party shall
give notice as promptly as reasonably  practicable to each indemnifying party of
any action  commenced  against it in  respect of which  indemnity  may be sought
hereunder, but failure to so notify an indemnifying party shall not relieve such
indemnifying  party  from  any  liability  hereunder  to  the  extent  it is not
materially  prejudiced as a result thereof and in any event shall not relieve it
from any liability which it may have otherwise than on account of this indemnity
agreement.  In the case of parties  indemnified  pursuant to Section 6(a) above,
counsel to the indemnified  parties shall be selected by [Name], and in the case
of  parties  indemnified   pursuant  to  Section  6(b)  above,  counsel  to  the
indemnified  parties shall be selected by the Company. An indemnifying party may
participate  at its own  expense in the  defense of any such  action;  provided,
however,  that  counsel to the  indemnifying  party shall not  (except  with the
consent of the indemnified  party) also be counsel to the indemnified  party. In
no event shall the indemnifying  parties be liable for fees and expenses of more
than one counsel  (in  addition to any local  counsel)  separate  from their own
counsel  for all  indemnified  parties  in  connection  with any one  action  or
separate but similar or related actions in the same jurisdiction  arising out of
the same general  allegations or  circumstances.  No  indemnifying  party shall,
without  the  prior  written  consent  of the  indemnified  parties,  settle  or
compromise  or  consent  to  the  entry  of any  judgment  with  respect  to any
litigation,  or any  investigation or proceeding by any  governmental  agency or
body,  commenced  or  threatened,  or any claim  whatsoever  in respect of which
indemnification  or contribution could be sought under this Section 6 or Section
7 hereof (whether or not the indemnified parties are actual or potential parties
thereto),  unless  such  settlement,  compromise  or  consent  (i)  includes  an
unconditional  release of each indemnified  party from all liability arising out
of such litigation, investigation, proceeding or claim and (ii) does not include
a statement as to or an admission of fault,  culpability  or a failure to act by
or on behalf of any indemnified party.


                                                       
<PAGE>16

         SECTION 7. Contribution. If the indemnification provided for in Section
6 hereof is for any reason  unavailable to or  insufficient  to hold harmless an
indemnified  party (other than pursuant to the terms  thereof) in respect of any
losses, liabilities,  claims, damages or expenses referred to therein, then each
indemnifying  party shall  contribute  to the  aggregate  amount of such losses,
liabilities, claims, damages and expenses incurred by such indemnified party, as
incurred,  (i) in such  proportion  as is  appropriate  to reflect the  relative
benefits  received  by the Company on the one hand and the  Underwriters  on the
other hand from the  offering of the  Securities  pursuant to this  Agreement or
(ii) if the  allocation  provided by clause (i) is not  permitted by  applicable
law, in such  proportion  as is  appropriate  to reflect  not only the  relative
benefits  referred  to in clause  (i) above but also the  relative  fault of the
Company on the one hand and of the  Underwriters on the other hand in connection
with the  statements  or omissions  that  resulted in such losses,  liabilities,
claims,   damages  or  expenses,   as  well  as  any  other  relevant  equitable
considerations.

         The relative  benefits  received by the Company on the one hand and the
Underwriters on the other hand in connection with the offering of the Securities
pursuant  to  this  Agreement  shall  be  deemed  to be in the  same  respective
proportions  as the total  net  proceeds  from the  offering  of the  Securities
pursuant to this Agreement (before deducting  expenses)  received by the Company
and the total underwriting  discount received by the Underwriters,  in each case
as set  forth  on the  cover of the  Prospectus,  or,  if Rule 434 is used,  the
corresponding  location on the Term Sheet bear to the aggregate  initial  public
offering price of the Securities as set forth on such cover.

         The relative fault of the Company on the one hand and the  Underwriters
on the other hand shall be  determined  by  reference  to,  among other  things,
whether  any such  untrue or alleged  untrue  statement  of a  material  fact or
omission or alleged  omission to state a material  fact  relates to  information
supplied by the Company or by the Underwriters and the parties' relative intent,
knowledge,  access to  information  and  opportunity  to correct or prevent such
statement or omission.

         The  Company and the  Underwriters  agree that it would not be just and
equitable if contribution pursuant to this Section 7 were determined by pro rata
allocation  (even  if the  Underwriters  were  treated  as one  entity  for such
purpose) or by any other method of allocation which does not take account of the
equitable  considerations  referred  to above in this  Section 7. The  aggregate
amount of losses,  liabilities,  claims,  damages  and  expenses  incurred by an
indemnified  party and  referred  to above in this  Section 7 shall be deemed to
include any legal or other  expenses  reasonably  incurred  by such  indemnified
party in investigating,  preparing or defending  against any litigation,  or any
investigation  or proceeding by any  governmental  agency or body,  commenced or
threatened, or any claim whatsoever based upon any such untrue or alleged untrue
statement or omission or alleged omission.


                                                       
<PAGE>17


         Notwithstanding  the provisions of this Section 7, no Underwriter shall
be required to contribute  any amount in excess of the amount by which the total
price at which the Securities  underwritten  by it and distributed to the public
were  offered  to the  public  exceeds  the  amount of any  damages  which  such
Underwriter  has otherwise  been required to pay by reason of any such untrue or
alleged untrue statement or omission or alleged omission.

         No person guilty of fraudulent misrepresentation (within the meaning of
Section 11(f) of the 1933 Act) shall be entitled to contribution from any person
who was not guilty of such fraudulent misrepresentation.

         For purposes of this  Section 7, each  person,  if any, who controls an
Underwriter  within  the  meaning of Section 15 of the 1933 Act or Section 20 of
the 1934 Act shall have the same rights to contribution as such Underwriter, and
each  director  of the  Company,  each  officer  of the  Company  who signed the
Registration Statement, and each person, if any, who controls the Company within
the  meaning  of  Section 15 of the 1933 Act or Section 20 of the 1934 Act shall
have  the  same  rights  to  contribution  as  the  Company.  The  Underwriters'
respective  obligations to contribute  pursuant to this Section 7 are several in
proportion to the number of Securities set forth opposite their respective names
in Schedule A hereto and not joint.

         SECTION  8.  Representations,  Warranties  and  Agreements  to  Survive
Delivery.  All  representations,  warranties  and  agreements  contained in this
Agreement,  or in  certificates  of officers of the Company  submitted  pursuant
hereto,  shall remain operative and in full force and effect,  regardless of any
investigation made by or on behalf of any Underwriter or controlling  person, or
by or on behalf of the Company,  and shall survive delivery of the Securities to
the Underwriters.

         SECTION 9.  Termination of Agreement.

         (a)  Termination;   General.  The  Representative  may  terminate  this
Agreement, by notice to the Company, at any time at or prior to Closing Time (i)
if there has been,  since the time of execution  of this  Agreement or since the
respective  dates  as of which  information  is  given  in the  Prospectus,  any
material adverse change, or development involving a prospective material adverse
change,  in the financial  condition,  results of  operations  or  stockholders'
equity of the Company and its subsidiaries considered as one enterprise, whether
or not arising in the ordinary course of business, or (ii) if there has occurred
any material adverse change in the financial  markets in the United States,  any
outbreak of hostilities or escalation thereof or other calamity or crisis or any
material  change or  development  involving  a  prospective  material  change in
national or international political,  financial or economic conditions,  in each
case  the  effect  of  which  is such  as to make  it,  in the  judgment  of the
Representative,  impracticable to market the Securities or to enforce  contracts
for the sale of the  Securities,  or (iii) if trading in any  securities  of the
Company has been  suspended or limited by the  Commission  or the New York Stock
Exchange, or if trading generally on the American Stock Exchange or the New York
Stock Exchange or in the NASDAQ  National  Market has been suspended or limited,
or minimum or maximum prices for trading have been fixed,  or maximum ranges for
prices  have been  required,  by any of said  exchanges  or by such system or by
order of the Commission,  the NASD or any other governmental  authority, or (iv)
if a  banking  moratorium  has  been  declared  by  either  Federal  or New York
authorities.

                                                       

<PAGE>18


         (b)  Liabilities.  If this  Agreement  is  terminated  pursuant to this
Section,  such termination  shall be without liability of any party to any other
party except as provided in Section 4 hereof, and provided further that Sections
1, 6 and 7 shall survive such termination and remain in full force and effect.

         SECTION 10. Default by One or More of the Underwriters.  If one or more
of the Underwriters  shall fail at Closing Time to purchase the Securities which
it or they are  obligated  to  purchase  under this  Agreement  (the  "Defaulted
Securities"),   the  Representative  shall  have  the  right,  within  24  hours
thereafter,  to  make  arrangements  for  one  or  more  of  the  non-defaulting
Underwriters, or any other underwriters, to purchase all, but not less than all,
of the  Defaulted  Securities in such amounts as may be agreed upon and upon the
terms herein set forth; if, however, the Representative shall not have completed
such  arrangements  within  such  24-hour  period,  then:  (a) if the  number of
Defaulted  Securities  does not  exceed 10% of the  number of  Securities  to be
purchased  on  such  date,  each of the  non-defaulting  Underwriters  shall  be
obligated, severally and not jointly, to purchase the full amount thereof in the
proportions that their respective underwriting obligations hereunder bear to the
underwriting  obligations  of  all  non-defaulting  Underwriters,  or (b) if the
number of Defaulted  Securities  exceeds 10% of the number of  Securities  to be
purchased on such date, this Agreement shall terminate  without liability on the
part of any non-defaulting Underwriter.

         No action taken  pursuant to this Section shall relieve any  defaulting
Underwriter from liability in respect of its default.

         In the event of any such default which does not result in a termination
of this Agreement, either the Representative or the Company shall have the right
to postpone  Closing Time,  for a period not  exceeding  seven days, in order to
effect any required  changes in the  Registration  Statement or Prospectus or in
any other  documents or  arrangements.  As used herein,  the term  "Underwriter"
includes any person substituted for an Underwriter under this Section 10.

         SECTION 11.  Default by the  Company.  If the  Company  shall make such
delivery  but  the  Company  shall  fail  to  deliver  the   Securities  to  the
Representative,  then the Underwriters may, at the option of the Representative,
by notice from the  Representative  to the  Company,  terminate  this  Agreement
without any liability on the fault of any  non-defaulting  party except that the
provisions  of Sections 1, 4, 6 and 7 shall remain in full force and effect.  No
action taken pursuant to this Section 11 shall relieve the defaulting party from
liability, if any, in respect of such default.

         SECTION 12.  Notices.  All notices and other  communications  hereunder
shall be in  writing  and shall be  deemed to have been duly  given if mailed or
transmitted  by  any  standard  form  of   telecommunication.   Notices  to  the
Underwriters  shall be directed to the  Representative at  ____________________,
attention of  ___________________;  notices to the Company  shall be directed to
Chief Financial Officer, Bank of Oklahoma, National Association,  P.O. Box 2300,
Tulsa,  Oklahoma 74192 and Frederic  Dorwart,  Lawyers,  Old City Hall, 124 East
Fourth Street, Tulsa, Oklahoma 74103-5010.


                                                       
<PAGE>19


         SECTION 13.  Parties.  This Agreement shall inure to the benefit of and
be binding upon each of the  Underwriters  and the Company and their  respective
successors.  Nothing  expressed or  mentioned  in this  Agreement is intended or
shall be  construed  to give any  person,  firm or  corporation,  other than the
Underwriters and the Company and their respective successors and the controlling
persons and  officers  and  directors  referred to in Sections 6 and 7 and their
heirs and legal  representatives,  any legal or equitable right, remedy or claim
under or in respect of this Agreement or any provision  herein  contained.  This
Agreement and all conditions  and  provisions  hereof are intended to be for the
sole and  exclusive  benefit  of the  Underwriters  and the  Company  and  their
respective  successors,  and said controlling persons and officers and directors
and their  heirs  and legal  representatives,  and for the  benefit  of no other
person,  firm or  corporation.  No purchaser of Securities  from any Underwriter
shall be deemed to be a successor by reason merely of such purchase.

     SECTION 14. GOVERNING LAW AND TIME. THIS AGREEMENT SHALL BE GOVERNED BY AND
CONSTRUED  IN  ACCORDANCE  WITH THE LAWS OF THE  STATE OF NEW  YORK.  EXCEPT  AS
OTHERWISE SET FORTH HEREIN, SPECIFIED TIMES OF DAY REFER TO OKLAHOMA TIME.

     SECTION 15. Effect of Headings. The Article and Section headings herein and
the  Table of  Contents  are for  convenience  only and  shall  not  affect  the
construction hereof.

         If the  foregoing  is in  accordance  with  your  understanding  of our
agreement,  please  sign and  return  to the  Company [ ]  counterparts  hereof,
whereupon this  agreement,  along with all  counterparts,  will become a binding
agreement among the Underwriters and the Company in accordance with its terms.

                                Very truly yours,

                                BOK FINANCIAL CORPORATION

                                By   __________________________________________
                                    Name:
                                    Title:


                                                       
<PAGE>20


CONFIRMED AND ACCEPTED, as of the date first above written:

[NAME]


By   _______________________     Authorized Signatory

          For itself and as  Representative of the other  Underwriters  named in
Schedule A hereto.

                                                       
<PAGE>21



                                    EXHIBIT A


                    OPINION OF THE COMPANY'S SPECIAL COUNSEL
                    TO BE DELIVERED PURSUANT TO SECTION 5(b)

         The opinions of special counsel for the Company  referred to in Section
5(b) collectively shall be substantially to the following effect:

         (i)      The  Company  has been duly  incorporated  and is an  existing
                  corporation  in good  standing  under the laws of the State of
                  Oklahoma.  The Company has the requisite  corporate  power and
                  authority to conduct its business in all material  respects as
                  described in the Prospectus.

         (ii)     The  Securities  have been duly  authorized and validly issued
                  and are fully paid and nonassessable.

         (iii)    The  statements  set forth under the heading  "Description  of
                  Senior Debt  Securities"  in the  Prospectus,  insofar as such
                  statements purport to be a summary of the instruments defining
                  the rights of holders of the Securities is accurate,  complete
                  and fair in all material respects.

         (iv)     All regulatory consents, authorizations, approvals and filings
                  required  to be  obtained  or made by the  Company  under  the
                  Federal  laws of the United  States,  the laws of the State of
                  Oklahoma  and the  General  Corporation  Law of the  State of
                  Oklahoma for the issuance, sale and delivery of the Securities
                  by the Company have been obtained or made.

         (v)      The issuance of the  Securities by the Company  hereunder does
                  not (a) violate the Company's  certificate of incorporation or
                  by-laws,  (b)  result  in a  default  under or  breach  of the
                  agreements  listed in Annex A to this  opinion or (c)  violate
                  any  Federal  law of the United  States or law of the State of
                  Oklahoma applicable to the Company;  provided,  however, that,
                  for  purposes of this  paragraph  (vi),  such counsel need not
                  express an opinion with respect to Federal or state securities
                  laws, other antifraud laws or fraudulent transfer laws.

         (vi)     The Underwriting Agreement has been duly authorized,  executed
                  and  delivered by the  Company.  The  Indenture  has been duly
                  qualified  under  the  Trust  Indenture  Act and has been duly
                  authorized,  executed  and  delivered  by the Company and is a
                  valid and binding  agreement  of the Company,  enforceable  in
                  accordance  with its term,  subject to applicable  bankruptcy,
                  insolvency  or  similar  laws  affecting   creditors'   rights
                  generally and general principles of equity.


                                                       
<PAGE>22


         In  addition,  such  counsel  shall state that they have  reviewed  the
Registration Statement and the Prospectus,  participated in discussions with the
Representative  and the  representatives  of the Company and its accountants and
that,  on  the  basis  of  the  information  gained  in  such  discussions,  the
Registration Statement, as of the date it became effective,  and the Prospectus,
as of the date of the  Prospectus,  appeared  on their face to be  appropriately
responsive in all material  respects to the requirements of the 1933 Act and the
1933 Act Regulations. Further, such counsel shall confirm that nothing that came
to their attention in the course of the aforementioned review has caused them to
believe that the  Registration  Statement,  as of the date it became  effective,
contained  any  untrue  statement  of a  material  fact or  omitted to state any
material fact required to be stated  therein or necessary to make the statements
therein not misleading or that the Prospectus,  as of the date of the Prospectus
and as of the Closing Date, contained any untrue statement of a material fact or
omitted to state any material  fact  necessary  in order to make the  statements
therein,  in the light of the  circumstances  under  which they were  made,  not
misleading.

         The  limitations  inherent in the  independent  verification of factual
matters and the character of determinations involved in the registration process
are  such,  however,  that such  counsel  shall not be  required  to assume  any
responsibility  for the  accuracy,  completeness  or fairness of the  statements
contained in the Registration  Statement or the Prospectus except for those made
under the captions "Description of Senior Debt Securities" and "Underwriting" in
the  Prospectus  insofar  as they  relate to  provisions  of  documents  therein
described.  Also,  such counsel need not express any opinion or belief as to the
financial  statements  or other  financial  data  contained in the  Registration
Statement of the Prospectus.

                                                       



                                                                    


                                   EXHIBIT 4.1

                            BOK Financial Corporation

                        Unsecured Senior Debt Securities



                                                       
<PAGE>ii


                            BOK FINANCIAL CORPORATION

                                       to

                              --------------------
                                     Trustee



                                    INDENTURE


                           Dated as of ________, ____




                        UNSECURED SENIOR DEBT SECURITIES



                                                       
<PAGE>i


                 CERTAIN SECTIONS OF THIS INDENTURE RELATING TO
                SECTIONS 310 THROUGH 318, INCLUSIVE, OF THE TRUST
                             INDENTURE ACT OF 1939:

TRUST INDENTURE
  ACT SECTION                                                INDENTURE SECTION
(S) 310    (a)(1).....................................................609
           (a)(2).....................................................609
           (a)(3)..........................................Not Applicable
           (a)(4)..........................................Not Applicable
           (b)...................................................608, 610
(S) 311    (a)........................................................613
           (b)........................................................613
(S) 312    (a)...................................................701, 702
           (b)........................................................702
           (c)........................................................702
(S) 313    (a)........................................................703
           (b)........................................................703
           (c)........................................................703
           (d)........................................................703
(S) 314    (a)........................................................704
           (a)(4)...............................................101, 1004
           (b).............................................Not Applicable
           (c)(1).....................................................102
           (c)(2).....................................................102
           (c)(3)..........................................Not Applicable
           (d).............................................Not Applicable
           (e)........................................................102
(S) 315    (a)........................................................601
           (b)........................................................602
           (c)........................................................601
           (d)........................................................601
           (e)........................................................514
(S) 316    (a)........................................................101
           (a)(1)(A).............................................502, 512
           (a)(1)(B)..................................................513
           (a)(2)..........................................Not Applicable
           (b)........................................................508
           (c)........................................................104
(S) 317    (a)(1).....................................................503
           (a)(2).....................................................504
           (b).......................................................1003
(S) 318    (a)........................................................107

Note:  This reconciliation and tie shall not, for any purpose, be deemed to be a
part of the Indenture.

                                                       
<PAGE>ii


     
                                TABLE OF CONTENTS

                                                                           Page
Parties......................................................................1
Recitals of the Company......................................................1

                                   ARTICLE ONE
             Definitions and Other Provisions of General Application

Section 101.     Definitions:
                 Act.........................................................2
                 Affiliate; control..........................................2
                 Authenticating Agent........................................2
                 Bank........................................................2
                 Board of Directors..........................................2
                 Board Resolution............................................2
                 Business Day................................................2
                 Commission..................................................2
                 Company.....................................................2
                 Company Request; Company Order..............................2
                 Corporate Trust Office......................................3
                 Corporation.................................................3
                 Covenant Defeasance.........................................3
                 Defaulted Interest..........................................3
                 Defeasance..................................................3
                 Depositary..................................................3
                 Event of Default............................................3
                 Exchange Act................................................3
                 Expiration Date.............................................3
                 Foreign Government Obligation...............................3
                 Global Security.............................................3
                 Holder......................................................3
                 Indenture...................................................3
                 Interest....................................................3
                 Interest Payment Date.......................................3
                 Investment Company Act......................................4
                 Maturity....................................................4
                 Notice of Default...........................................4
                 Officers' Certificate.......................................4
                 Opinion of Counsel..........................................4
                 Original Issue Discount Security............................4

     NOTE: This table of contents shall not, for any purpose,  be deemed to be a
     part of the Indenture.

                                                       
<PAGE>iii


                 Outstanding.................................................4
                 Paying Agent................................................5
                 Person......................................................5
                 Place of Payment............................................5
                 Predecessor Security........................................5
                 Principal Subsidiary Bank...................................5
                 Redemption Date.............................................5
                 Redemption Price............................................5
                 Regular Record Date.........................................6
                 Responsible Officer.........................................6
                 Securities..................................................6
                 Securities Act..............................................6
                 Security Register and Security Registrar....................6
                 Special Record Date.........................................6
                 Stated Maturity.............................................6
                 Subsidiary..................................................6
                 Trust Indenture Act.........................................6
                 Trustee.....................................................6
                 U.S. Government Obligation..................................7
                 Vice President..............................................7
                 Voting Stock................................................7
                 Wholly-Owned Subsidiary.....................................7
Section 102      Compliance Certificates and Opinions........................7
Section 103      Form of Documents Delivered to Trustee......................7
Section 104      Acts of Holders; Record Dates...............................8
Section 105      Notices, Etc., to Trustee and Company......................10
Section 106      Notice to Holders; Waiver..................................10
Section 107      Conflict with Trust Indenture Act..........................11
Section 108      Effect of Headings and Table of Contents...................11
Section 109      Successors and Assigns.....................................11
Section 110      Separability Clause........................................11
Section 111      Benefits of Indenture......................................11
Section 112      Governing Law..............................................11
Section 113      Legal Holidays.............................................12

                                   ARTICLE TWO
                                 Security Forms

Section 201      Forms Generally............................................12
Section 202      Form of Face of Security...................................13
Section 203      Form of Reverse of Security................................15
Section 204      Form of Legend for Global Securities.......................18
Section 205      Form of Trustee's Certificate of Authentication............18


                                                       
<PAGE>iv


                                  ARTICLE THREE
                                 The Securities

Section 301      Amount Unlimited; Issuable in Series.......................19
Section 302      Denominations..............................................21
Section 303      Execution, Authentication, Delivery and Dating.............21
Section 304      Temporary Securities.......................................23
Section 305      Registration, Registration of Transfer and Exchange........23
Section 306      Mutilated, Destroyed, Lost and Stolen Securities...........25
Section 307      Payment of Interest; Interest Rights Preserved.............26
Section 308      Persons Deemed Owners......................................27
Section 309      Cancellation...............................................27
Section 310      Computation of Interest....................................27

                                  ARTICLE FOUR
                           Satisfaction and Discharge

Section 401      Satisfaction and Discharge of Indenture....................27
Section 402      Application of Trust Money.................................28

                                  ARTICLE FIVE
                                    Remedies

Section 501      Events of Default..........................................29
Section 502      Acceleration of Maturity; Rescission and Annulment.........31
Section 503      Collection of Indebtedness and Suits for
                 Enforcement by Trustee.....................................32
Section 504      Trustee May File Proofs of Claim...........................32
Section 505      Trustee May Enforce Claims Without Possession
                 of Securities..............................................33
Section 506      Application of Money Collected.............................33
Section 507      Limitation on Suits........................................33
Section 508      Unconditional Right of Holders to Receive Principal,
                 Premium and Interest.......................................34
Section 509      Restoration of Rights and Remedies.........................34
Section 510      Rights and Remedies Cumulative.............................34
Section 511      Delay or Omission Not Waiver...............................34
Section 512      Control by Holders.........................................35
Section 513      Waiver of Past Defaults....................................35
Section 514      Undertaking for Costs......................................35
Section 515      Waiver of Usury, Stay or Extension Laws....................35

                                   ARTICLE SIX
                                   The Trustee
Section 601      Certain Duties and Responsibilities........................38
Section 602      Notice of Defaults.........................................38

                                                       
<PAGE>v


Section 603      Certain Rights of Trustee..................................36
Section 604      Not Responsible for Recitals or Issuance of Securities.....37
Section 605      May Hold Securities........................................38
Section 606      Money Held in Trust........................................38
Section 607      Compensation and Reimbursement.............................38
Section 608      Conflicting Interests......................................38
Section 609      Corporate Trustee Required; Eligibility....................38
Section 610      Resignation and Removal; Appointment of Successor..........39
Section 611      Acceptance of Appointment by Successor.....................40
Section 612      Merger, Conversion, Consolidation or Succession
                 to Business................................................41
Section 613      Preferential Collection of Claims Against Company..........42
Section 614      Appointment of Authenticating Agent........................44

                                  ARTICLE SEVEN
                Holders' Lists and Reports by Trustee and Company

Section 701      Company to Furnish Trustee Names and Addresses
                 of Holders.................................................43
Section 702      Preservation of Information; Communications
                 to Holders.................................................44
Section 703      Reports by Trustee.........................................44
Section 704      Reports by Company.........................................44

                                  ARTICLE EIGHT
              Consolidation, Merger, Conveyance, Transfer or Lease

Section 801      Company May Consolidate, Etc., Only on Certain Terms.......44
Section 802      Successor Substituted......................................45

                                  ARTICLE NINE
                             Supplemental Indentures

Section 901      Supplemental Indentures Without Consent of Holders.........46
Section 902      Supplemental Indentures With Consent of Holders............47
Section 903      Execution of Supplemental Indentures.......................48
Section 904      Effect of Supplemental Indentures..........................48
Section 905      Conformity with Trust Indenture Act........................48
Section 906      Reference in Securities to Supplemental Indentures.........48

                                   ARTICLE TEN
                                    Covenants

Section 1001     Payment of Principal, Premium and Interest.................49
Section 1002     Maintenance of Office or Agency............................49
Section 1003     Money for Securities Payments to Be Held in Trust..........49

                                                       
<PAGE>vi


Section 1004     Statement by Officers as to Default........................50
Section 1005     Existence..................................................50
Section 1006     Maintenance of Properties..................................51
Section 1007     Payment of Taxes and Other Claims..........................51
Section 1008     Limitation Upon Disposition of Stock
                 or Assets of the Bank......................................51
Section 1009     Waiver of Certain Covenants................................52

                                 ARTICLE ELEVEN
                            Redemption of Securities

Section 1101     Applicability of Article...................................53
Section 1102     Election to Redeem; Notice to Trustee......................53
Section 1103     Selection by Trustee of Securities to Be Redeemed..........53
Section 1104     Notice of Redemption.......................................54
Section 1105     Deposit of Redemption Price................................54
Section 1106     Securities Payable on Redemption Date......................55
Section 1107     Securities Redeemed in Part................................55

                                 ARTICLE TWELVE
                                  Sinking Funds

Section 1201     Applicability of Article...................................55
Section 1202     Satisfaction of Sinking Fund Payments with Securities......56
Section 1203     Redemption of Securities for Sinking Fund..................56

                                ARTICLE THIRTEEN
                       Defeasance and Covenant Defeasance

Section 1301     Company's Option to Effect Defeasance or
                 Covenant Defeasance........................................56
Section 1302     Defeasance and Discharge...................................56
Section 1303     Covenant Defeasance........................................57
Section 1304     Conditions to Defeasance or Covenant Defeasance............57
Section 1305     Deposited Money, U.S. Government Obligations and
                 Foreign Government Obligations to Be Held in
                 Trust; Miscellaneous Provisions............................59
Section 1306     Reinstatement..............................................60

                                                       
<PAGE>1


    INDENTURE, dated as of _________, ____, between BOK Financial Corporation, a
corporation  duly organized and existing under the laws of the State of Oklahoma
(herein  called the  "Company"),  having its  principal  office at BOK Financial
Corporation,  One Williams Center, Tulsa, Oklahoma 74172 and _______________,  a
_____________ duly organized and existing under the laws of ________, as Trustee
(herein called the "Trustee").

                            Recitals of the Company

         The Company has duly  authorized  the  execution  and  delivery of this
Indenture  to  provide  for the  issuance  from  time  to time of its  unsecured
debentures,  notes  or  other  evidences  of  indebtedness  (herein  called  the
"Securities"), to be issued in one or more series as in this Indenture provided.

         All things  necessary to make this  Indenture a valid  agreement of the
Company, in accordance with its terms, have been done.

         Now, Therefore, This Indenture Witnesseth:

         For  and in  consideration  of the  premises  and the  purchase  of the
Securities  by the Holders  thereof,  it is mutually  agreed,  for the equal and
proportionate  benefit of all Holders of the Securities or of a series  thereof,
as follows:

                                   ARTICLE ONE
                        Definitions and Other Provisions
                             of General Application

Section 101.  Definitions.

         For all  purposes  of this  Indenture,  except as  otherwise  expressly
provided or unless the context otherwise requires:

         (1) the terms  defined in this Article  have the  meanings  assigned to
them in this Article and include the plural as well as the singular;

         (2) all  other  terms  used  herein  which  are  defined  in the  Trust
Indenture  Act,  either  directly or by  reference  therein,  have the  meanings
assigned to them therein;

         (3) all accounting terms not otherwise defined herein have the meanings
assigned to them in accordance with generally  accepted  accounting  principles,
and, except as otherwise herein expressly provided, the term "generally accepted
accounting  principles"  with respect to any  computation  required or permitted
hereunder shall mean such accounting principles as are generally accepted at the
date of such computation;

         (4)  unless  the  context  otherwise  requires,  any  reference  to  an
"Article" or a "Section" refers to an Article or a Section,  as the case may be,
of this Indenture; and

                                                       
<PAGE>2


         (5) the words  "herein",  "hereof" and  "hereunder"  and other words of
similar  import  refer to this  Indenture  as a whole and not to any  particular
Article, Section or other subdivision.

         "Act", when used with respect to any Holder,  has the meaning specified
in Section 104.

         "Affiliate" of any specified  Person means any other Person directly or
indirectly  controlling  or  controlled  by or under  direct or indirect  common
control  with such  specified  Person.  For the purposes of this  definition,  "
control"  when used with  respect  to any  specified  Person  means the power to
direct the  management  and  policies of such  Person,  directly or  indirectly,
whether  through the ownership of voting  securities,  by contract or otherwise;
and the terms  "controlling" and "controlled"  have meanings  correlative to the
foregoing.

         "Authenticating  Agent"  means any  Person  authorized  by the  Trustee
pursuant  to  Section  614 to act on  behalf  of  the  Trustee  to  authenticate
Securities of one or more series.

         "Bank"  means  (i) any  institution  which  accepts  deposits  that the
depositor has a legal right to withdraw on demand and engages in the business of
making commercial loans and (ii) any trust company.

         "Board of Directors" means either the board of directors of the Company
or any duly authorized committee of that board.

         "Board  Resolution"  means  a copy  of a  resolution  certified  by the
Secretary or an Assistant  Secretary of the Company to have been duly adopted by
the Board of  Directors  and to be in full  force and effect on the date of such
certification, and delivered to the Trustee.

         "Business Day",  when used with respect to any Place of Payment,  means
each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day on which
banking institutions in that Place of Payment are authorized or obligated by law
or executive order to close.

         "Commission" means the Securities and Exchange Commission, from time to
time  constituted,  created under the Exchange Act, or, if at any time after the
execution of this  instrument such Commission is not existing and performing the
duties  now  assigned  to it  under  the  Trust  Indenture  Act,  then  the body
performing such duties at such time.

         "Company"  means  the  Person  named  as the  "Company"  in  the  first
paragraph  of this  instrument  until a successor  Person shall have become such
pursuant  to  the  applicable  provisions  of  this  Indenture,  and  thereafter
"Company" shall mean such successor Person.

         "Company  Request" or "Company  Order" means a written request or order
signed  in the  name of the  Company  by its  Chairman  of the  Board,  its Vice
Chairman of the Board, its President or a Vice President,  and by its Treasurer,
an Assistant Treasurer,  its Secretary or an Assistant Secretary,  and delivered
to the Trustee.


                                                       
<PAGE>3


         "Corporate  Trust Office" means the principal  office of the Trustee in
__________________  at which at any particular time its corporate trust business
shall be administered.

         "Corporation" means a corporation,  association,  company, joint-stock
          company or business trust.

         "Covenant Defeasance" has the meaning specified in Section 1303.

         "Defaulted Interest" has the meaning specified in Section 307.

         "Defeasance" has the meaning specified in Section 1302.

         "Depositary"  means,  with respect to Securities of any series issuable
in whole or in part in the form of one or more  Global  Securities,  a  clearing
agency registered under the Exchange Act that is designated to act as Depositary
for such Securities as contemplated by Section 301.

         "Event of Default" has the meaning specified in Section 501.

         "Exchange  Act"  means  the  Securities  Exchange  Act of 1934  and any
statute successor thereto, in each case as amended from time to time.

         "Expiration Date" has the meaning specified in Section 104.

       "Foreign GovernmentObligation" has the meaning specified in Section 1304.

         "Global  Security"  means a Security that  evidences all or part of the
Securities  of any series and bears the legend set forth in Section 204 (or such
legend as may be specified as contemplated by Section 301 for such Securities).

         "Holder"  means a Person in whose name a Security is registered in the
          Security Register.

         "Indenture" means this instrument as originally  executed and as it may
from  time  to  time  be  supplemented  or  amended  by one or  more  indentures
supplemental  hereto entered into pursuant to the applicable  provisions hereof,
including,  for all  purposes  of this  instrument  and  any  such  supplemental
indenture,  the  provisions  of the Trust  Indenture Act that are deemed to be a
part  of and  govern  this  instrument  and  any  such  supplemental  indenture,
respectively.  The term  "Indenture"  shall also include the terms of particular
series of Securities established as contemplated by Section 301.

         "Interest",  when used  with  respect  to an  Original  Issue  Discount
Security which by its terms bears interest only after  Maturity,  means interest
payable after Maturity.

         "Interest Payment Date", when used with respect to any Security,  means
the Stated Maturity of an instalment of interest on such Security.

                                                       
<PAGE>4


         "Investment  Company Act" means the Investment  Company Act of 1940 and
any statute successor thereto, in each case as amended from time to time.

         "Maturity",  when used with respect to any Security,  means the date on
which the principal of such  Security or an instalment of principal  becomes due
and payable as therein or herein provided,  whether at the Stated Maturity or by
declaration of acceleration, call for redemption or otherwise.

         "Notice of Default"  means a written  notice of the kind  specified  in
Section 501(4) or 501(5).

         "Officers'  Certificate"  means a certificate signed by the Chairman of
the Board, a Vice Chairman of the Board, the President or a Vice President,  and
by  the  Treasurer,  an  Assistant  Treasurer,  the  Secretary  or an  Assistant
Secretary,  of the Company,  and  delivered to the Trustee.  One of the officers
signing an  Officers'  Certificate  given  pursuant to Section 1004 shall be the
principal executive, financial or accounting officer of the Company.

         "Opinion of  Counsel"  means a written  opinion of counsel,  who may be
counsel for the Company, and who shall be acceptable to the Trustee.

         "Original  Issue Discount  Security"  means any Security which provides
for an amount less than the principal  amount thereof to be due and payable upon
a declaration of acceleration of the Maturity thereof pursuant to Section 502.

         "Outstanding",  when used with respect to Securities,  means, as of the
date of determination,  all Securities  theretofore  authenticated and delivered
under this Indenture, except:

          (1)  Securities  theretofore  cancelled by the Trustee or delivered to
     the Trustee for cancellation;

          (2) Securities for whose payment or redemption  money in the necessary
     amount has been theretofore  deposited with the Trustee or any Paying Agent
     (other than the Company) in trust or set aside and  segregated  in trust by
     the  Company  (if the  Company  shall act as its own Paying  Agent) for the
     Holders of such  Securities;  provided  that, if such  Securities are to be
     redeemed,  notice of such  redemption  has been duly given pursuant to this
     Indenture or provision therefor satisfactory to the Trustee has been made;

     (3) Securities as to which Defeasance has been effected pursuant to Section
1302; and

                                                       

<PAGE>5


         (4)  Securities  which have been paid  pursuant  to  Section  306 or in
exchange for or in lieu of which other  Securities have been  authenticated  and
delivered pursuant to this Indenture,  other than any such Securities in respect
of which there shall have been presented to the Trustee proof satisfactory to it
that such  Securities  are held by a bona fide  purchaser  in whose  hands  such
Securities are valid  obligations  of the Company;  provided,  however,  that in
determining  whether  the  Holders  of the  requisite  principal  amount  of the
Outstanding   Securities  have  given,  made  or  taken  any  request,   demand,
authorization,  direction,  notice, consent, waiver or other action hereunder as
of any date, (A) if, as of such date, the principal amount payable at the Stated
Maturity  of a  Security  is not  determinable,  the  principal  amount  of such
Security  which  shall  be  deemed  to be  Outstanding  shall be the  amount  as
specified or determined as contemplated by Section 301, (B) the principal amount
of a Security  denominated  in one or more foreign  currencies or currency units
which shall be deemed to be  Outstanding  shall be the U.S.  dollar  equivalent,
determined  as of such date in the manner  provided as  contemplated  by Section
301, of the  principal  amount of such  Security  (or, in the case of a Security
described in Clause (A) or (B) above,  of the amount  determined  as provided in
such Clause),  and (D) Securities owned by the Company or any other obligor upon
the Securities or any Affiliate of the Company or of such other obligor shall be
disregarded  and deemed  not to be  Outstanding,  except  that,  in  determining
whether the Trustee shall be protected in relying upon any such request, demand,
authorization,   direction,  notice,  consent,  waiver  or  other  action,  only
Securities  which  the  Trustee  knows to be so owned  shall be so  disregarded.
Securities  so owned  which have been  pledged in good faith may be  regarded as
Outstanding if the pledgee  establishes to the  satisfaction  of the Trustee the
pledgee's  right so to act with respect to such  Securities and that the pledgee
is not the Company or any other obligor upon the  Securities or any Affiliate of
the Company or of such other obligor.

         "Paying  Agent" means any Person  authorized  by the Company to pay the
principal  of or any  premium or  interest  on any  Securities  on behalf of the
Company.

         "Person" means any individual, corporation, partnership, joint venture,
trust,  unincorporated  organization  or  government  or any agency or political
subdivision thereof.

         "Place of  Payment",  when used with respect to the  Securities  of any
series,  means the place or places  where the  principal  of and any premium and
interest  on  the  Securities  of  that  series  are  payable  as  specified  as
contemplated by Section 301.

         "Predecessor  Security" of any particular Security means every previous
Security  evidencing all or a portion of the same debt as that evidenced by such
particular  Security;  and,  for the purposes of this  definition,  any Security
authenticated  and  delivered  under Section 306 in exchange for or in lieu of a
mutilated,  destroyed,  lost or stolen  Security shall be deemed to evidence the
same debt as the mutilated, destroyed, lost or stolen Security.

         "Principal  Subsidiary  Bank" means any Subsidiary  which is a Bank and
has total assets equal to 30 percent or more of the  consolidated  assets of the
Company  determined  as of  the  date  of  the  most  recent  audited  financial
statements of such entities.

         "Redemption  Date",  when  used  with  respect  to any  Security  to be
redeemed,  means  the date  fixed for such  redemption  by or  pursuant  to this
Indenture.

         "Redemption  Price",  when  used with  respect  to any  Security  to be
redeemed,  means  the  price  at  which it is to be  redeemed  pursuant  to this
Indenture.


                                                       
<PAGE>6


         "Regular Record Date" for the interest  payable on any Interest Payment
Date on the  Securities of any series means the date  specified for that purpose
as contemplated by Section 301.

         "Responsible Officer", when used with respect to the Trustee, means the
chairman or any  vice-chairman  of the board of  directors,  the chairman or any
vice-chairman of the executive committee of the board of directors, the chairman
of the trust committee,  the president,  any vice president,  the secretary, any
assistant secretary,  the treasurer,  any assistant treasurer,  the cashier, any
assistant cashier,  any trust officer or assistant trust officer, the controller
or any  assistant  controller  or any other  officer of the Trustee  customarily
performing  functions  similar to those performed by any of the above designated
officers and also means,  with respect to a particular  corporate  trust matter,
any other  officer to whom such matter is referred  because of his  knowledge of
and familiarity with the particular subject.

         "Securities"  has the  meaning  stated  in the  first  recital  of this
Indenture and more particularly means any Securities authenticated and delivered
under this Indenture.

         "Securities  Act"  means  the  Securities  Act of 1933 and any  statute
successor thereto, in each case as amended from time to time.

         "Security  Register"  and  "Security  Registrar"  have  the  respective
meanings specified in Section 305.

         "Special Record Date" for the payment of any Defaulted Interest means a
date fixed by the Trustee pursuant to Section 307.

         "Stated  Maturity",  when  used with  respect  to any  Security  or any
instalment of principal thereof or interest thereon, means the date specified in
such  Security as the fixed date on which the principal of such Security or such
instalment of principal or interest is due and payable.

         "Subsidiary"  means a  corporation  more  than  50% of the  outstanding
voting stock of which is owned, directly or indirectly, by the Company or by one
or  more  other  Subsidiaries,   or  by  the  Company  and  one  or  more  other
Subsidiaries.  For the purposes of this  definition,  "voting stock" means stock
which ordinarily has voting power for the election of directors,  whether at all
times  or only so long as no  senior  class of stock  has such  voting  power by
reason of any contingency.

         "Trust Indenture Act" means the Trust Indenture Act of 1939 as in force
at the date as of which this instrument was executed; provided, however, that in
the event the Trust  Indenture  Act of 1939 is amended  after such date,  "Trust
Indenture Act" means, to the extent  required by any such  amendment,  the Trust
Indenture Act of 1939 as so amended.


                                                       
<PAGE>7


         "Trustee"  means  the  Person  named  as the  "Trustee"  in  the  first
paragraph of this  instrument  until a successor  Trustee shall have become such
pursuant  to  the  applicable  provisions  of  this  Indenture,  and  thereafter
"Trustee" shall mean or include each Person who is then a Trustee hereunder, and
if at any time  there  is more  than one such  Person,  "Trustee"  as used  with
respect to the  Securities  of any series shall mean the Trustee with respect to
Securities of that series.

         "U.S. Government Obligation" has the meaning specified in Section 1304.

         "Vice President", when used with respect to the Company or the Trustee,
means any vice  president,  whether or not  designated  by a number or a word or
words added before or after the title "vice president".

         "Voting  Stock"  means  stock of the class or  classes  having  general
voting power under  ordinary  circumstances  to elect at least a majority of the
board of directors,  managers or trustees of such  corporation  (irrespective of
whether  or not at the time  stock of any  other  class or  classes  shall  have
contingent voting rights).

         "Wholly-Owned  Subsidiary"  means a corporation  all of the outstanding
Voting Stock of which is owned directly by the Company.

Section 102.  Compliance Certificates and Opinions.

         Upon any  application  or request by the Company to the Trustee to take
any action under any provision of this  Indenture,  the Company shall furnish to
the Trustee such  certificates  and opinions as may be required  under the Trust
Indenture Act. Each such certificate or opinion shall be given in the form of an
Officers'  Certificate,  if to be  given by an  officer  of the  Company,  or an
Opinion  of  Counsel,  if to be given by  counsel,  and  shall  comply  with the
requirements of the Trust Indenture Act and any other  requirements set forth in
this Indenture.

         Every  certificate  or  opinion  with  respect  to  compliance  with  a
condition or covenant  provided for in this Indenture  (except for  certificates
provided for in Section 1004) shall include,

         (1) a  statement  that each  individual  signing  such  certificate  or
opinion has read such covenant or condition and the definitions  herein relating
thereto;

         (2) a brief  statement as to the nature and scope of the examination or
investigation   upon  which  the  statements  or  opinions   contained  in  such
certificate or opinion are based;

         (3) a statement  that, in the opinion of each such  individual,  he has
made such  examination or investigation as is necessary to enable him to express
an informed  opinion as to whether or not such  covenant or  condition  has been
complied with; and

         (4) a statement as to whether,  in the opinion of each such individual,
such condition or covenant has been complied with.

Section 103.  Form of Documents Delivered to Trustee.

                                                       
<PAGE>8


         In any case where  several  matters are required to be certified by, or
covered by an opinion of, any specified  Person,  it is not  necessary  that all
such  matters  be  certified  by, or covered by the  opinion  of,  only one such
Person,  or that they be so certified or covered by only one  document,  but one
such Person may certify or give an opinion  with respect to some matters and one
or more other such Persons as to other matters,  and any such Person may certify
or give an opinion as to such matters in one or several documents.

         Any  certificate  or opinion of an officer of the Company may be based,
insofar as it relates to legal  matters,  upon a  certificate  or opinion of, or
representations  by,  counsel,  unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or  representations
with respect to the matters upon which his  certificate  or opinion is based are
erroneous.  Any such certificate or opinion of counsel may be based,  insofar as
it  relates  to  factual   matters,   upon  a  certificate  or  opinion  of,  or
representations  by, an officer or  officers  of the  Company  stating  that the
information  with respect to such factual  matters is in the  possession  of the
Company, unless such counsel knows, or in the exercise of reasonable care should
know,  that the certificate or opinion or  representations  with respect to such
matters are erroneous.

         Where any  Person is  required  to make,  give or  execute  two or more
applications,  requests, consents,  certificates,  statements, opinions or other
instruments  under this Indenture,  they may, but need not, be consolidated  and
form one instrument.

Section 104.  Acts of Holders; Record Dates.

         Any request, demand, authorization,  direction, notice, consent, waiver
or other action  provided or permitted  by this  Indenture to be given,  made or
taken by Holders may be embodied in and evidenced by one or more  instruments of
substantially  similar  tenor  signed by such Holders in person or by agent duly
appointed in writing;  and, except as herein otherwise expressly provided,  such
action shall become  effective when such instrument or instruments are delivered
to the Trustee and, where it is hereby expressly required,  to the Company. Such
instrument  or  instruments  (and the  action  embodied  therein  and  evidenced
thereby) are herein  sometimes  referred to as the "Act" of the Holders  signing
such instrument or instruments.  Proof of execution of any such instrument or of
a writing  appointing any such agent shall be sufficient for any purpose of this
Indenture  and (subject to Section 601)  conclusive  in favor of the Trustee and
the Company, if made in the manner provided in this Section.

         The fact and date of the execution by any Person of any such instrument
or writing may be proved by the affidavit of a witness of such execution or by a
certificate  of a notary  public  or  other  officer  authorized  by law to take
acknowledgments of deeds, certifying that the individual signing such instrument
or writing acknowledged to him the execution thereof. Where such execution is by
a  signer  acting  in a  capacity  other  than  his  individual  capacity,  such
certificate  or  affidavit  shall  also  constitute   sufficient  proof  of  his
authority. The fact and date of the execution of any such instrument or writing,
or the  authority of the Person  executing  the same,  may also be proved in any
other manner which the Trustee deems sufficient.


                                                       
<PAGE>9


         The ownership of Securities shall be proved by the Security Register.

         Any request, demand, authorization,  direction, notice, consent, waiver
or other Act of the Holder of any Security shall bind every future Holder of the
same Security and the Holder of every Security  issued upon the  registration of
transfer  thereof  or in  exchange  therefor  or in lieu  thereof  in respect of
anything  done,  omitted or suffered to be done by the Trustee or the Company in
reliance  thereon,  whether  or not  notation  of such  action is made upon such
Security.

         The  Company  may set any  day as a  record  date  for the  purpose  of
determining  the Holders of  Outstanding  Securities  of any series  entitled to
give,  make or take  any  request,  demand,  authorization,  direction,  notice,
consent,  waiver or other action  provided or permitted by this  Indenture to be
given, made or taken by Holders of Securities of such series,  provided that the
Company  may not set a record date for,  and the  provisions  of this  paragraph
shall  not  apply  with  respect  to,  the  giving  or  making  of  any  notice,
declaration,  request or  direction  referred to in the next  paragraph.  If any
record  date is set  pursuant  to this  paragraph,  the  Holders of  Outstanding
Securities  of the relevant  series on such record date,  and no other  Holders,
shall be  entitled  to take the  relevant  action,  whether or not such  Holders
remain  Holders  after such record date;  provided  that no such action shall be
effective  hereunder unless taken on or prior to the applicable  Expiration Date
by Holders of the requisite  principal amount of Outstanding  Securities of such
series on such record  date.  Nothing in this  paragraph  shall be  construed to
prevent  the Company  from  setting a new record date for any action for which a
record date has previously  been set pursuant to this  paragraph  (whereupon the
record date previously set shall  automatically and with no action by any Person
be cancelled and of no effect), and nothing in this paragraph shall be construed
to render  ineffective  any action taken by Holders of the  requisite  principal
amount of Outstanding  Securities of the relevant series on the date such action
is taken. Promptly after any record date is set pursuant to this paragraph,  the
Company,  at its own  expense,  shall  cause  notice of such  record  date,  the
proposed action by Holders and the applicable Expiration Date to be given to the
Trustee in writing and to each Holder of  Securities  of the relevant  series in
the manner set forth in Section 106.

         The  Trustee  may set any  day as a  record  date  for the  purpose  of
determining the Holders of Outstanding Securities of any series entitled to join
in the giving or making of (i) any Notice of Default,  (ii) any  declaration  of
acceleration  referred  to in  Section  502,  (iii)  any  request  to  institute
proceedings  referred to in Section 507(2) or (iv) any direction  referred to in
Section 512, in each case with  respect to  Securities  of such  series.  If any
record  date is set  pursuant  to this  paragraph,  the  Holders of  Outstanding
Securities of such series on such record date,  and no other  Holders,  shall be
entitled to join in such notice, declaration,  request or direction,  whether or
not such Holders  remain  Holders after such record date;  provided that no such
action shall be effective  hereunder  unless taken on or prior to the applicable
Expiration  Date by Holders of the  requisite  principal  amount of  Outstanding
Securities of such series on such record date.  Nothing in this paragraph  shall
be  construed  to prevent  the  Trustee  from  setting a new record date for any
action  for  which a  record  date has  previously  been  set  pursuant  to this
paragraph (whereupon the record date previously set shall automatically and with
no action by any Person be  cancelled  and of no  effect),  and  nothing in this
paragraph  shall be construed to render  ineffective any action taken by Holders
of the  requisite  principal  amount of  Outstanding  Securities of the relevant
series on the date such action is taken.  Promptly  after any record date is set
pursuant to this paragraph,  the Trustee, at the Company's expense,  shall cause
notice of such record date,  the proposed  action by Holders and the  applicable
Expiration  Date to be given to the  Company  in writing  and to each  Holder of
Securities of the relevant series in the manner set forth in Section 106.

                                                       
<PAGE>10

         With respect to any record date set pursuant to this Section, the party
hereto which sets such record  dates may  designate  any day as the  "Expiration
Date" and from time to time may change  the  Expiration  Date to any  earlier or
later day;  provided that no such change shall be effective unless notice of the
proposed new Expiration Date is given to the other party hereto in writing,  and
to each Holder of Securities  of the relevant  series in the manner set forth in
Section 106, on or prior to the existing  Expiration Date. If an Expiration Date
is not designated  with respect to any record date set pursuant to this Section,
the party  hereto  which set such record date shall be deemed to have  initially
designated  the 180th day after such  record  date as the  Expiration  Date with
respect thereto,  subject to its right to change the Expiration Date as provided
in this paragraph.  Notwithstanding  the foregoing,  no Expiration Date shall be
later than the 180th day after the applicable record date.

         Without limiting the foregoing, a Holder entitled hereunder to take any
action hereunder with regard to any particular Security may do so with regard to
all or any part of the principal  amount of such Security or by one or more duly
appointed  agents  each of which may do so  pursuant  to such  appointment  with
regard to all or any part of such principal amount.

Section 105.  Notices, Etc., to Trustee and Company.

         Any request, demand, authorization,  direction, notice, consent, waiver
or Act of Holders or other  document  provided or permitted by this Indenture to
be made upon, given or furnished to, or filed with,

         (1) the Trustee by any Holder or by the Company shall be sufficient for
every purpose hereunder if made, given, furnished or filed in writing to or with
the Trustee at its Corporate Trust Office,  Attention:  _______________________,
or

         (2) the Company by the Trustee or by any Holder shall be sufficient for
every purpose  hereunder  (unless  otherwise  herein  expressly  provided) if in
writing and mailed,  first-class postage prepaid, to the Company addressed to it
at the address of its principal  office specified in the first paragraph of this
instrument  or at any other  address  previously  furnished  in  writing  to the
Trustee by the Company.

Section 106.  Notice to Holders; Waiver.


                                                       
<PAGE>11


         Where this Indenture  provides for notice to Holders of any event, such
notice shall be sufficiently given (unless otherwise herein expressly  provided)
if in writing and mailed,  first-class  postage prepaid, to each Holder affected
by such event, at his address as it appears in the Security Register,  not later
than the latest date (if any),  and not earlier than the earliest date (if any),
prescribed for the giving of such notice. In any case where notice to Holders is
given by mail,  neither the failure to mail such  notice,  nor any defect in any
notice so mailed,  to any particular Holder shall affect the sufficiency of such
notice with respect to other Holders.  Where this Indenture  provides for notice
in any manner,  such  notice may be waived in writing by the Person  entitled to
receive such notice,  either before or after the event, and such waiver shall be
the equivalent of such notice.  Waivers of notice by Holders shall be filed with
the Trustee,  but such filing shall not be a condition precedent to the validity
of any action taken in reliance upon such waiver.

         In case by reason of the  suspension  of  regular  mail  service  or by
reason of any other cause it shall be impracticable to give such notice by mail,
then such  notification  as shall be made with the approval of the Trustee shall
constitute a sufficient notification for every purpose hereunder.

Section 107.  Conflict with Trust Indenture Act.

         If any provision hereof limits, qualifies or conflicts with a provision
of the Trust  Indenture Act which is required under such Act to be a part of and
govern this Indenture,  the latter provision shall control.  If any provision of
this  Indenture  modifies or excludes any  provision of the Trust  Indenture Act
which may be so modified or excluded,  the latter  provision  shall be deemed to
apply to this Indenture as so modified or to be excluded, as the case may be.

Section 108.  Effect of Headings and Table of Contents.

         The Article and Section  headings  herein and the Table of Contents are
for convenience only and shall not affect the construction hereof.

Section 109.  Successors and Assigns.

         All  covenants and  agreements  in this  Indenture by the Company shall
bind its successors and assigns, whether so expressed or not.

Section 110.  Separability Clause.

         In case any provision in this Indenture or in the  Securities  shall be
invalid, illegal or unenforceable,  the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.

Section 111.  Benefits of Indenture.

         Nothing in this  Indenture  or in the  Securities,  express or implied,
shall give to any  Person,  other than the parties  hereto and their  successors
hereunder and the Holders,  any benefit or any legal or equitable right,  remedy
or claim under this Indenture.

Section 112.  Governing Law.


                                                       
<PAGE>12


         This Indenture and the Securities shall be governed by and construed in
accordance with the law of the State of New York.

Section 113.  Legal Holidays.

         In any case where any Interest Payment Date,  Redemption Date or Stated
Maturity of any  Security  shall not be a Business  Day at any Place of Payment,
then (notwithstanding any other provision of this Indenture or of the Securities
(other than a provision  of any  Security  which  specifically  states that such
provision shall apply in lieu of this Section)) payment of interest or principal
(and  premium,  if any) need not be made at such  Place of Payment on such date,
but may be made on the next  succeeding  Business  Day at such  Place of Payment
with the same  force  and  effect  as if made on the  Interest  Payment  Date or
Redemption Date, or at the Stated Maturity.

                                   ARTICLE TWO
                                 Security Forms
Section 201.  Forms Generally.

         The  Securities of each series shall be in  substantially  the form set
forth in this  Article,  or in such  other  form as shall be  established  by or
pursuant to a Board Resolution or in one or more indentures supplemental hereto,
in each case with such  appropriate  insertions,  omissions,  substitutions  and
other  variations as are required or permitted by this  Indenture,  and may have
such  letters,  numbers or other  marks of  identification  and such  legends or
endorsements  placed  thereon as may be required to comply with the rules of any
securities exchange or Depositary therefor or as may, consistently  herewith, be
determined  by the officers  executing  such  Securities,  as evidenced by their
execution  thereof.  If the form of Securities of any series is  established  by
action taken pursuant to a Board Resolution,  a copy of an appropriate record of
such action shall be certified by the Secretary or an Assistant Secretary of the
Company and  delivered to the Trustee at or prior to the delivery of the Company
Order  contemplated by Section 303 for the  authentication  and delivery of such
Securities.

         The definitive Securities shall be printed, lithographed or engraved on
steel engraved borders or may be produced in any other manner, all as determined
by the officers  executing such  Securities,  as evidenced by their execution of
such Securities.

Section 202.  Form of Face of Security.

     [Insert  any  legend  required  by  the  Internal   Revenue  Code  and  the
regulations thereunder.]

         This  Security  is not a  deposit  and is not  insured  by the  Federal
Deposit Insurance Corporation,  the Bank Insurance Fund, the Savings Association
Insurance Fund or any other governmental agency.

                            BOK FINANCIAL CORPORATION
No. __________                                                   $_____________


                                                       

<PAGE>13


     BOK Financial Corporation,  a corporation duly organized and existing under
the laws of Oklahoma  (herein  called the  "Company",  which term  includes  any
successor  Person  under  the  Indenture  hereinafter  referred  to),  for value
received,          hereby          promises          to          pay          to
 ...............................................,   or  registered  assigns,  the
principal    sum   of    ......................................    Dollars    on
 ........................................................  [if the Security is to
bear interest  prior to Maturity,  insert -- , and to pay interest  thereon from
 .............  or from the most recent  Interest  Payment Date to which interest
has  been  paid  or  duly  provided  for,  semi-annually  on  ............   and
 ............ in each year, commencing ........., at the rate of ....% per annum,
until the principal hereof is paid or made available for payment [if applicable,
insert -- , provided that any principal and premium,  and any such instalment of
interest, which is overdue shall bear interest at the rate of ...% per annum (to
the extent that the payment of such interest shall be legally enforceable), from
the  dates  such  amounts  are due  until  they are paid or made  available  for
payment, and such interest shall be payable on demand]. The interest so payable,
and punctually paid or duly provided for, on any Interest  Payment Date will, as
provided in such  Indenture,  be paid to the Person in whose name this  Security
(or one or more  Predecessor  Securities) is registered at the close of business
on the Regular  Record  Date for such  interest,  which shall be the .......  or
 ....... (whether or not a Business Day), as the case may be, next preceding such
Interest Payment Date. Any such interest not so punctually paid or duly provided
for will forthwith cease to be payable to the Holder on such Regular Record Date
and may either be paid to the Person in whose name this Security (or one or more
Predecessor  Securities)  is  registered  at the close of  business on a Special
Record  Date  for the  payment  of such  Defaulted  Interest  to be fixed by the
Trustee,  notice  whereof shall be given to Holders of Securities of this series
not less than 10 days prior to such Special  Record Date, or be paid at any time
in any  other  lawful  manner  not  inconsistent  with the  requirements  of any
securities  exchange on which the  Securities of this series may be listed,  and
upon such notice as may be required by such exchange, all as more fully provided
in said Indenture].  [If the Security is not to bear interest prior to Maturity,
insert -- The principal of this Security  shall not bear interest  except in the
case of a default in payment of principal upon acceleration,  upon redemption or
at  Stated  Maturity  and in such case the  overdue  principal  and any  overdue
premium  shall bear  interest at the rate of ....% per annum (to the extent that
the payment of such interest shall be legally enforceable),  from the dates such
amounts are due until they are paid or made  available for payment.  Interest on
any overdue principal or premium shall be payable on demand.  [Any such interest
on overdue  principal or premium which is not paid on demand shall bear interest
at the rate of  ......%  per  annum  (to the  extent  that the  payment  of such
interest on interest shall be legally enforceable), from the date of such demand
until the amount so demanded is paid or made available for payment.  Interest on
any overdue interest shall be payable on demand.]]

         Payment of the principal of (and premium,  if any) and [if  applicable,
insert - -- any such]  interest on this  Security  will be made at the office or
agency of the Company maintained for that purpose in ............,  in such coin
or currency  of the United  States of America as at the time of payment is legal
tender for  payment  of public and  private  debts [if  applicable,  insert -- ;
provided,  however, that at the option of the Company payment of interest may be
made by check  mailed to the  address  of the  Person  entitled  thereto as such
address shall appear in the Security Register].


                                                       
<PAGE>14


         Reference is hereby made to the further provisions of this Security set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

         Unless the  certificate of  authentication  hereon has been executed by
the Trustee referred to on the reverse hereof by manual signature, this Security
shall  not be  entitled  to any  benefit  under  the  Indenture  or be  valid or
obligatory for any purpose.

         In Witness  Whereof,  the Company has caused this instrument to be duly
executed under its corporate seal.

Dated:

                                       BOK FINANCIAL CORPORATION

                                       By  _________________________________

Attest:

_______________________________



                                                       
<PAGE>15


Section 203.  Form of Reverse of Security.

     This  Security  is one of a duly  authorized  issue  of  securities  of the
Company (herein called the "Securities"), issued and to be issued in one or more
series  under an  Indenture,  dated as of  ...............  (herein  called  the
"Indenture",  which  term  shall  have  the  meaning  assigned  to  it  in  such
instrument),  between the Company and  ...................,  as Trustee  (herein
called the  "Trustee",  which term  includes  any  successor  trustee  under the
Indenture), and reference is hereby made to the Indenture for a statement of the
respective rights,  limitations of rights,  duties and immunities  thereunder of
the Company, the Trustee and the Holders of the Securities and of the terms upon
which the  Securities  are, and are to be,  authenticated  and  delivered.  This
Security  is one of the series  designated  on the face  hereof [if  applicable,
insert -- , limited in aggregate principal amount to $...........].

     [If  applicable,  insert -- The  Securities  of this  series are subject to
redemption upon not less than 30 days' notice by mail, [if applicable, insert --
(1) on ...........  in any year commencing with the year ......  and ending with
the year  ......  through  operation  of the  sinking  fund for this series at a
Redemption Price equal to 100% of the principal amount, and (2)] at any time [if
applicable,  insert -- on or after ..........,  19..], as a whole or in part, at
the election of the Company,  at the following  Redemption  Prices (expressed as
percentages of the principal amount):  If redeemed [if applicable,  insert -- on
or before  ...............,  ...%, and if redeemed]  during the 12-month  period
beginning ............. of the years indicated,

                 Redemption                            Redemption
Year                Price                 Year            Price
- -----               -----                 ----            -----

and  thereafter at a Redemption  Price equal to .....% of the principal  amount,
together in the case of any such redemption [if  applicable,  insert -- (whether
through  operation of the sinking fund or otherwise)]  with accrued  interest to
the Redemption  Date, but interest  installments  whose Stated Maturity is on or
prior to such Redemption Date will be payable to the Holders of such Securities,
or one or more Predecessor Securities, of record at the close of business on the
relevant  Record Dates  referred to on the face  hereof,  all as provided in the
Indenture.]

     [If  applicable,  insert -- The  Securities  of this  series are subject to
redemption  upon not less than 30 days' notice by mail, (1) on  ............  in
any year  commencing  with the year ....  and ending with the year ....  through
operation  of the  sinking  fund for this  series at the  Redemption  Prices for
redemption  through  operation of the sinking fund  (expressed as percentages of
the  principal  amount)  set forth in the table  below,  and (2) at any time [if
applicable,  insert -- on or after ............],  as a whole or in part, at the
election of the Company, at the Redemption Prices for redemption  otherwise than
through operation of the sinking fund (expressed as percentages of the principal
amount) set forth in the table below:  If redeemed  during the  12-month  period
beginning ............ of the years indicated,


                    Redemption Price
                     For Redemption                    Redemption Price For

                                                       
<PAGE>16


                    Through Operation                  Redemption Otherwise
                         of the                       Than Through Operation
Year                  Sinking Fund                     of the Sinking Fund
- -----               ----------------                  -----------------------









and  thereafter at a Redemption  Price equal to .....% of the principal  amount,
together in the case of any such redemption  (whether  through  operation of the
sinking fund or otherwise)  with accrued  interest to the  Redemption  Date, but
interest  installments  whose Stated  Maturity is on or prior to such Redemption
Date  will  be  payable  to the  Holders  of  such  Securities,  or one or  more
Predecessor  Securities,  of  record at the close of  business  on the  relevant
Record Dates referred to on the face hereof, all as provided in the Indenture.]

         [If applicable,  insert -- Notwithstanding  the foregoing,  the Company
may not,  prior to  .............,  redeem  any  Securities  of this  series  as
contemplated by [if applicable, insert -- Clause (2) of] the preceding paragraph
as a part of, or in anticipation of, any refunding operation by the application,
directly  or  indirectly,  of moneys  borrowed  having an  interest  cost to the
Company (calculated in accordance with generally accepted financial practice) of
less than .....% per annum.]

     [If applicable, insert -- The sinking fund for this series provides for the
redemption on  ............  in each year  beginning  with the year .......  and
ending  with  the  year  ......  of [if  applicable,  insert  -- not  less  than
$..........  ("mandatory sinking fund") and not more than] $.........  aggregate
principal  amount  of  Securities  of this  series.  Securities  of this  series
acquired  or  redeemed by the Company  otherwise  than  through [if  applicable,
insert -- mandatory]  sinking fund payments may be credited  against  subsequent
[if applicable, insert -- mandatory] sinking fund payments otherwise required to
be made [if  applicable,  insert -- , in the inverse  order in which they become
due].]

         [If the Security is subject to redemption of any kind, insert -- In the
event of  redemption of this Security in part only, a new Security or Securities
of this  series  and of like tenor for the  unredeemed  portion  hereof  will be
issued in the name of the Holder hereof upon the cancellation hereof.]

         [If  applicable,  insert  --  The  Indenture  contains  provisions  for
defeasance  at any  time of [the  entire  indebtedness  of this  Security]  [or]
[certain  restrictive  covenants  and  Events of  Default  with  respect to this
Security] [, in each case] upon compliance with certain  conditions set forth in
the Indenture.]


                                                       
<PAGE>17


         If an Event of Default with respect to  Securities of this series shall
occur and be  continuing,  the principal of the Securities of this series may be
declared  due and  payable in the manner  and with the  effect  provided  in the
Indenture.

         The Indenture permits, with certain exceptions as therein provided, the
amendment  thereof and the  modification  of the rights and  obligations  of the
Company  and the rights of the  Holders of the  Securities  of each series to be
affected under the Indenture at any time by the Company and the Trustee with the
consent of the Holders of 66 2/3% in principal  amount of the  Securities at the
time  Outstanding  of each series to be affected.  The  Indenture  also contains
provisions  permitting the Holders of specified  percentages in principal amount
of the  Securities  of each  series  at the time  Outstanding,  on behalf of the
Holders of all  Securities  of such series,  to waive  compliance by the Company
with certain  provisions of the  Indenture  and certain past defaults  under the
Indenture  and their  consequences.  Any such consent or waiver by the Holder of
this  Security  shall be  conclusive  and binding  upon such Holder and upon all
future Holders of this Security and of any Security issued upon the registration
of transfer  hereof or in  exchange  herefor or in lieu  hereof,  whether or not
notation of such consent or waiver is made upon this Security.

         As provided  in and subject to the  provisions  of the  Indenture,  the
Holder of this  Security  shall not have the right to institute  any  proceeding
with respect to the Indenture or for the appointment of a receiver or trustee or
for any other remedy thereunder,  unless such Holder shall have previously given
the Trustee written notice of a continuing  Event of Default with respect to the
Securities of this series,  the Holders of not less than 25% in principal amount
of the Securities of this series at the time Outstanding shall have made written
request to the  Trustee  to  institute  proceedings  in respect of such Event of
Default as Trustee and offered the Trustee reasonable indemnity, and the Trustee
shall not have  received  from the Holders of a majority in principal  amount of
Securities of this series at the time Outstanding a direction  inconsistent with
such  request,  and shall have failed to institute any such  proceeding,  for 60
days after receipt of such notice, request and offer of indemnity. The foregoing
shall not apply to any suit  instituted  by the Holder of this  Security for the
enforcement of any payment of principal hereof or any premium or interest hereon
on or after the respective due dates expressed herein.

         No reference  herein to the Indenture and no provision of this Security
or of the Indenture  shall alter or impair the obligation of the Company,  which
is  absolute  and  unconditional,  to pay the  principal  of and any premium and
interest  on this  Security  at the  times,  place and rate,  and in the coin or
currency, herein prescribed.

         As provided in the Indenture and subject to certain limitations therein
set  forth,  the  transfer  of this  Security  is  registrable  in the  Security
Register,  upon surrender of this Security for  registration  of transfer at the
office or agency of the  Company  in any place  where the  principal  of and any
premium  and  interest  on this  Security  are  payable,  duly  endorsed  by, or
accompanied  by a written  instrument  of transfer in form  satisfactory  to the
Company and the Security  Registrar  duly  executed by, the Holder hereof or his
attorney duly authorized in writing, and thereupon one or more new Securities of
this  series and of like tenor,  of  authorized  denominations  and for the same
aggregate  principal  amount,  will be issued to the  designated  transferee  or
transferees.


                                                       
<PAGE>18

         The  Securities  of this series are issuable  only in  registered  form
without coupons in denominations of $.......  and any integral multiple thereof.
As provided in the  Indenture  and  subject to certain  limitations  therein set
forth, Securities of this series are exchangeable for a like aggregate principal
amount of Securities of this series and of like tenor of a different  authorized
denomination, as requested by the Holder surrendering the same.

         No service charge shall be made for any such  registration  of transfer
or exchange,  but the Company may require  payment of a sum  sufficient to cover
any tax or other governmental charge payable in connection therewith.

         Prior to due presentment of this Security for registration of transfer,
the  Company,  the Trustee and any agent of the Company or the Trustee may treat
the Person in whose name this Security is registered as the owner hereof for all
purposes,  whether or not this Security be overdue, and neither the Company, the
Trustee nor any such agent shall be affected by notice to the contrary.

         All terms used in this  Security  which are  defined  in the  Indenture
shall have the meanings assigned to them in the Indenture.

Section 204.  Form of Legend for Global Securities.

         Unless  otherwise  specified  as  contemplated  by Section  301 for the
Securities evidenced thereby,  every Global Security authenticated and delivered
hereunder shall bear a legend in substantially the following form:

THIS  SECURITY  IS A  GLOBAL  SECURITY  WITHIN  THE  MEANING  OF  THE  INDENTURE
HEREINAFTER  REFERRED  TO AND IS  REGISTERED  IN THE NAME OF A  DEPOSITARY  OR A
NOMINEE  THEREOF.  THIS  SECURITY MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A
SECURITY REGISTERED, AND NO TRANSFER OF THIS SECURITY IN WHOLE OR IN PART MAY BE
REGISTERED,  IN THE NAME OF ANY PERSON OTHER THAN SUCH  DEPOSITARY  OR A NOMINEE
THEREOF, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE.

Section 205.  Form of Trustee's Certificate of Authentication.

         The Trustee's  certificates of authentication shall be in substantially
the following form:

         This is one of the Securities of the series designated therein referred
to in the within-mentioned Indenture.

                   ..........................................,
                                                   As Trustee


                   By.........................................
                                           Authorized Officer

                                                       
<PAGE>19

                                  ARTICLE THREE
                                 The Securities

Section 301.  Amount Unlimited; Issuable in Series.

         The aggregate principal amount of Securities which may be authenticated
and delivered under this Indenture is unlimited.

         The  Securities  may be issued in one or more  series.  There  shall be
established in or pursuant to a Board  Resolution  and,  subject to Section 303,
set forth, or determined in the manner provided, in an Officers' Certificate, or
established in one or more indentures supplemental hereto, prior to the issuance
of Securities of any series,

         (1) the title of the Securities of the series (which shall  distinguish
the Securities of the series from Securities of any other series);

         (2) any limit upon the aggregate  principal amount of the Securities of
the series which may be authenticated and delivered under this Indenture (except
for Securities  authenticated and delivered upon registration of transfer of, or
in  exchange  for, or in lieu of,  other  Securities  of the series  pursuant to
Section 304, 305, 306, 906 or 1107 and except for any Securities which, pursuant
to  Section  303,  are deemed  never to have been  authenticated  and  delivered
hereunder);

         (3) the Person to whom any  interest on a Security of the series  shall
be payable, if other than the Person in whose name that Security (or one or more
Predecessor  Securities)  is  registered at the close of business on the Regular
Record Date for such interest;

          (4)the date or dates on which the principal of any Securities of the
series is payable;

         (5) the rate or rates at which any  Securities of the series shall bear
interest,  if any, the date or dates from which any such interest  shall accrue,
the Interest  Payment Dates on which any such interest  shall be payable and the
Regular Record Date for any such interest payable on any Interest Payment Date;

         (6) the place or places  where the  principal  of and any  premium  and
interest on any Securities of the series shall be payable;

         (7) the  obligation,  if any, of the Company to redeem or purchase  any
Securities of the series pursuant to any sinking fund or analogous provisions or
at the option of the Holder thereof and the period or periods within which,  the
price or prices at which and the terms and conditions  upon which any Securities
of the series shall be redeemed or purchased,  in whole or in part,  pursuant to
such obligation;


                                                       
<PAGE>20


         (8) if other than  denominations  of $1,000 and any  integral  multiple
thereof,  the  denominations  in which any  Securities  of the  series  shall be
issuable;

         (9) if the amount of  principal  of or any  premium or  interest on any
Securities  of the  series  may be  determined  with  reference  to an  index or
pursuant to a formula, the manner in which such amounts shall be determined;

         (10) if other than the entire principal amount thereof,  the portion of
the principal amount of any Securities of the series which shall be payable upon
declaration of acceleration of the Maturity thereof pursuant to Section 502;

         (11) if the  principal  amount  payable at the Stated  Maturity  of any
Securities  of the series will not be  determinable  as of any one or more dates
prior to the  Stated  Maturity,  the  amount  which  shall be  deemed  to be the
principal  amount  of such  Securities  as of any  such  date  for  any  purpose
thereunder or hereunder,  including the principal  amount thereof which shall be
due and payable upon any Maturity other than the Stated  Maturity or which shall
be deemed to be Outstanding as of any date prior to the Stated  Maturity (or, in
any such case, the manner in which such amount deemed to be the principal amount
shall be determined);

         (12) if applicable,  that the Securities of the series, in whole or any
specified part, shall be defeasible  pursuant to Section 1302 or Section 1303 or
both such Sections and, if other than by a Board Resolution, the manner in which
any election by the Company to defease such Securities shall be evidenced;

         (13) if applicable, that any Securities of the series shall be issuable
in whole or in part in the form of one or more  Global  Securities  and, in such
case, the respective  Depositaries for such Global  Securities,  the form of any
legend or legends  which shall be borne by any such Global  Security in addition
to or in lieu of that set forth in Section 204 and any circumstances in addition
to or in lieu of those set forth in Clause (2) of the last  paragraph of Section
305 in which any such Global  Security  may be exchanged in whole or in part for
Securities  registered,  and any transfer of such Global Security in whole or in
part  may be  registered,  in the  name or  names  of  Persons  other  than  the
Depositary for such Global Security or a nominee thereof;

         (14) any addition to or change in the Events of Default  which  applies
to any  Securities  of the series and any change in the right of the  Trustee or
the requisite Holders of such Securities to declare the principal amount thereof
due and payable pursuant to Section 502;

         (15) any  addition to or change in the  covenants  set forth in Article
Ten which applies to Securities of the series; and

         (16)  any  other  terms  of  the  series  (which  terms  shall  not  be
inconsistent  with the  provisions  of this  Indenture,  except as  permitted by
Section 901(5)).

                                                       
<PAGE>21


         All  Securities  of any one  series  shall be  substantially  identical
except as to denomination and except as may otherwise be provided in or pursuant
to the Board  Resolution  referred  to above and  (subject  to Section  303) set
forth,  or  determined  in the manner  provided,  in the  Officers'  Certificate
referred to above or in any such indenture supplemental hereto.

         If any of the terms of the  series  are  established  by  action  taken
pursuant to a Board Resolution,  a copy of an appropriate  record of such action
shall be certified by the Secretary or an Assistant Secretary of the Company and
delivered  to  the  Trustee  at or  prior  to  the  delivery  of  the  Officers'
Certificate setting forth the terms of the series.

Section 302.  Denominations.

         The Securities of each series shall be issuable only in registered form
without  coupons  and  only in such  denominations  as  shall  be  specified  as
contemplated  by Section 301. In the absence of any such specified  denomination
with respect to the  Securities  of any series,  the  Securities  of such series
shall be issuable in denominations of $1,000 and any integral multiple thereof.

Section 303.  Execution, Authentication, Delivery and Dating.

         The  Securities  shall be  executed  on  behalf of the  Company  by its
Chairman of the Board,  its Vice Chairman of the Board,  its President or one of
its Vice Presidents, under its corporate seal reproduced thereon attested by its
Secretary or one of its  Assistant  Secretaries.  The  signature of any of these
officers on the Securities may be manual or facsimile.

         Securities  bearing the manual or facsimile  signatures of  individuals
who were at any time the proper  officers of the Company shall bind the Company,
notwithstanding  that such  individuals  or any of them have ceased to hold such
offices prior to the  authentication  and delivery of such Securities or did not
hold such offices at the date of such Securities.

         At any time and from time to time after the  execution  and delivery of
this Indenture, the Company may deliver Securities of any series executed by the
Company to the Trustee for authentication, together with a Company Order for the
authentication  and delivery of such  Securities,  and the Trustee in accordance
with the Company Order shall  authenticate and deliver such  Securities.  If the
form or terms of the  Securities  of the  series  have  been  established  by or
pursuant to one or more Board  Resolutions as permitted by Sections 201 and 301,
in authenticating such Securities, and accepting the additional responsibilities
under this  Indenture  in relation  to such  Securities,  the  Trustee  shall be
entitled to receive,  and (subject to Section  601) shall be fully  protected in
relying upon, an Opinion of Counsel stating,

         (1) if the form of such Securities has been  established by or pursuant
to Board  Resolution  as  permitted  by  Section  201,  that  such form has been
established in conformity with the provisions of this Indenture;


                                                       
<PAGE>22


         (2) if the  terms  of  such  Securities  have  been  established  by or
pursuant to Board  Resolution  as permitted by Section 301, that such terms have
been established in conformity with the provisions of this Indenture; and

         (3) that such  Securities,  when  authenticated  and  delivered  by the
Trustee and issued by the  Company in the manner and  subject to any  conditions
specified in such Opinion of Counsel,  will constitute valid and legally binding
obligations of the Company  enforceable in accordance with their terms,  subject
to bankruptcy, insolvency, fraudulent transfer,  reorganization,  moratorium and
similar laws of general applicability relating to or affecting creditors' rights
and to general equity principles.

If such  form or terms  have  been so  established,  the  Trustee  shall  not be
required  to  authenticate  such  Securities  if the  issue  of such  Securities
pursuant to this  Indenture  will  affect the  Trustee's  own rights,  duties or
immunities  under the  Securities  and this  Indenture  or otherwise in a manner
which is not reasonably acceptable to the Trustee.

         Notwithstanding  the  provisions  of Section  301 and of the  preceding
paragraph,  if all Securities of a series are not to be originally issued at one
time, it shall not be necessary to deliver the Officers'  Certificate  otherwise
required  pursuant to Section  301 or the  Company  Order and Opinion of Counsel
otherwise  required  pursuant  to such  preceding  paragraph  at or prior to the
authentication  of each Security of such series if such  documents are delivered
at or prior to the  authentication  upon original issuance of the first Security
of such series to be issued.

         Each Security shall be dated the date of its authentication.

         No Security shall be entitled to any benefit under this Indenture or be
valid or  obligatory  for any purpose  unless there  appears on such  Security a
certificate  of  authentication  substantially  in the form  provided for herein
executed  by the  Trustee by manual  signature,  and such  certificate  upon any
Security shall be conclusive evidence, and the only evidence, that such Security
has  been  duly  authenticated  and  delivered  hereunder.  Notwithstanding  the
foregoing, if any Security shall have been authenticated and delivered hereunder
but never issued and sold by the  Company,  and the Company  shall  deliver such
Security to the Trustee for  cancellation  as provided in Section  309,  for all
purposes of this  Indenture  such  Security  shall be deemed  never to have been
authenticated  and  delivered  hereunder  and  shall  never be  entitled  to the
benefits of this Indenture.


                                                       
<PAGE>23


Section 304.  Temporary Securities.

         Pending the  preparation  of definitive  Securities of any series,  the
Company may execute,  and upon Company Order the Trustee shall  authenticate and
deliver,  temporary  Securities  which are printed,  lithographed,  typewritten,
mimeographed   or   otherwise   produced,   in  any   authorized   denomination,
substantially  of the tenor of the  definitive  Securities in lieu of which they
are issued and with such appropriate  insertions,  omissions,  substitutions and
other  variations as the officers  executing such  Securities may determine,  as
evidenced by their execution of such Securities.

         If  temporary  Securities  of any series are issued,  the Company  will
cause definitive  Securities of that series to be prepared without  unreasonable
delay.  After the  preparation  of  definitive  Securities  of such series,  the
temporary  Securities  of such  series  shall  be  exchangeable  for  definitive
Securities  of such series upon  surrender of the  temporary  Securities of such
series at the office or agency of the  Company  in a Place of  Payment  for that
series, without charge to the Holder. Upon surrender for cancellation of any one
or more  temporary  Securities of any series,  the Company shall execute and the
Trustee  shall  authenticate  and  deliver  in  exchange  therefor  one or  more
definitive Securities of the same series, of any authorized denominations and of
like tenor and aggregate  principal  amount.  Until so exchanged,  the temporary
Securities  of any series shall in all respects be entitled to the same benefits
under this Indenture as definitive Securities of such series and tenor.

Section 305.  Registration, Registration of Transfer and Exchange.

         The Company shall cause to be kept at the Corporate Trust Office of the
Trustee a register  (the  register  maintained  in such  office and in any other
office or agency of the  Company in a Place of Payment  being  herein  sometimes
collectively  referred to as the "Security  Register") in which, subject to such
reasonable  regulations as it may  prescribe,  the Company shall provide for the
registration of Securities and of transfers of Securities. The Trustee is hereby
appointed  "Security  Registrar" for the purpose of  registering  Securities and
transfers of Securities as herein provided.

         Upon surrender for registration of transfer of any Security of a series
at the office or agency of the  Company in a Place of Payment  for that  series,
the Company shall execute,  and the Trustee shall  authenticate and deliver,  in
the name of the designated transferee or transferees, one or more new Securities
of the same  series,  of any  authorized  denominations  and of like  tenor  and
aggregate principal amount.

         At the option of the Holder,  Securities of any series may be exchanged
for other Securities of the same series, of any authorized  denominations and of
like tenor and aggregate  principal amount,  upon surrender of the Securities to
be  exchanged  at  such  office  or  agency.  Whenever  any  Securities  are  so
surrendered  for  exchange,  the Company  shall  execute,  and the Trustee shall
authenticate and deliver, the Securities which the Holder making the exchange is
entitled to receive.


                                                       
<PAGE>24


         All Securities  issued upon any registration of transfer or exchange of
Securities  shall be the valid  obligations of the Company,  evidencing the same
debt, and entitled to the same benefits under this Indenture,  as the Securities
surrendered upon such registration of transfer or exchange.

         Every Security presented or surrendered for registration of transfer or
for  exchange  shall (if so  required  by the  Company or the  Trustee)  be duly
endorsed,  or be  accompanied  by a  written  instrument  of  transfer  in  form
satisfactory  to the Company and the Security  Registrar duly  executed,  by the
Holder thereof or his attorney duly authorized in writing.

         No service  charge  shall be made for any  registration  of transfer or
exchange of Securities,  but the Company may require payment of a sum sufficient
to cover any tax or other governmental  charge that may be imposed in connection
with any  registration  of  transfer  or  exchange  of  Securities,  other  than
exchanges pursuant to Section 304, 906 or 1107 not involving any transfer.

         If the Securities of any series (or of any series and specified  tenor)
are to be redeemed  in part,  the  Company  shall not be required  (A) to issue,
register the transfer of or exchange any  Securities  of that series (or of that
series and specified tenor, as the case may be) during a period beginning at the
opening  of  business  15 days  before  the day of the  mailing  of a notice  of
redemption of any such Securities selected for redemption under Section 1103 and
ending at the close of business on the day of such  mailing,  or (B) to register
the transfer of or exchange any Security so selected for  redemption in whole or
in part, except the unredeemed portion of any Security being redeemed in part.

         The  provisions of Clauses (1), (2), (3) and (4) below shall apply only
to Global Securities:

         (1) Each Global  Security  authenticated  under this Indenture shall be
registered in the name of the Depositary  designated for such Global Security or
a nominee  thereof and  delivered  to such  Depositary  or a nominee  thereof or
custodian  therefor,  and each such Global  Security  shall  constitute a single
Security for all purposes of this Indenture.

         (2)  Notwithstanding  any other provision in this Indenture,  no Global
Security may be exchanged in whole or in part for Securities registered,  and no
transfer of a Global Security in whole or in part may be registered, in the name
of any Person other than the  Depositary  for such Global  Security or a nominee
thereof  unless (A) such  Depositary  (i) has  notified  the Company  that it is
unwilling or unable to continue as Depositary  for such Global  Security or (ii)
has ceased to be a clearing agency  registered under the Exchange Act, (B) there
shall have  occurred and be  continuing an Event of Default with respect to such
Global Security or (C) there shall exist such circumstances, if any, in addition
to or in lieu of the  foregoing  as have  been  specified  for this  purpose  as
contemplated by Section 301.

         (3) Subject to Clause (2) above,  any exchange of a Global Security for
other  Securities may be made in whole or in part, and all Securities  issued in
exchange for a Global  Security or any portion  thereof  shall be  registered in
such names as the Depositary for such Global Security shall direct.


                                                       
<PAGE>25

         (4) Every Security  authenticated  and delivered upon  registration  of
transfer of, or in exchange for or in lieu of, a Global  Security or any portion
thereof,  whether  pursuant to this  Section,  Section 304,  306, 906 or 1107 or
otherwise,  shall be authenticated and delivered in the form of, and shall be, a
Global  Security,  unless such  Security is  registered  in the name of a Person
other than the Depositary for such Global Security or a nominee thereof.

Section 306.  Mutilated, Destroyed, Lost and Stolen Securities.

         If any mutilated  Security is surrendered  to the Trustee,  the Company
shall  execute  and the  Trustee  shall  authenticate  and  deliver in  exchange
therefor a new  Security  of the same  series  and of like  tenor and  principal
amount and bearing a number not contemporaneously outstanding.

         If there shall be delivered to the Company and the Trustee (i) evidence
to their satisfaction of the destruction, loss or theft of any Security and (ii)
such  security or  indemnity as may be required by them to save each of them and
any agent of either of them  harmless,  then,  in the  absence  of notice to the
Company or the  Trustee  that such  Security  has been  acquired  by a bona fide
purchaser,  the Company  shall execute and the Trustee  shall  authenticate  and
deliver, in lieu of any such destroyed,  lost or stolen Security, a new Security
of the same series and of like tenor and  principal  amount and bearing a number
not contemporaneously outstanding.

         In case any such  mutilated,  destroyed,  lost or stolen  Security  has
become or is about to become due and payable, the Company in its discretion may,
instead of issuing a new Security, pay such Security.

         Upon the issuance of any new Security  under this Section,  the Company
may  require  the  payment  of a sum  sufficient  to  cover  any  tax  or  other
governmental  charge  that may be  imposed  in  relation  thereto  and any other
expenses (including the fees and expenses of the Trustee) connected therewith.

         Every new  Security of any series  issued  pursuant to this  Section in
lieu of any  destroyed,  lost or stolen  Security  shall  constitute an original
additional contractual obligation of the Company,  whether or not the destroyed,
lost or stolen Security shall be at any time enforceable by anyone, and shall be
entitled to all the benefits of this Indenture equally and proportionately  with
any and all other Securities of that series duly issued hereunder.

         The provisions of this Section are exclusive and shall preclude (to the
extent lawful) all other rights and remedies with respect to the  replacement or
payment of mutilated, destroyed, lost or stolen Securities.


                                                       
<PAGE>26


Section 307.  Payment of Interest; Interest Rights Preserved.

         Except as  otherwise  provided  as  contemplated  by  Section  301 with
respect to any series of Securities,  interest on any Security which is payable,
and is punctually paid or duly provided for, on any Interest  Payment Date shall
be paid to the Person in whose name that  Security  (or one or more  Predecessor
Securities)  is registered  at the close of business on the Regular  Record Date
for such interest.

         Any interest on any Security of any series which is payable, but is not
punctually  paid or duly  provided  for, on any  Interest  Payment  Date (herein
called  "Defaulted  Interest") shall forthwith cease to be payable to the Holder
on the relevant  Regular  Record Date by virtue of having been such Holder,  and
such  Defaulted  Interest  may be paid by the  Company,  at its election in each
case, as provided in Clause (1) or (2) below:

         (1) The Company may elect to make payment of any Defaulted  Interest to
the Persons in whose names the  Securities  of such series (or their  respective
Predecessor  Securities)  are  registered  at the close of business on a Special
Record Date for the payment of such Defaulted Interest,  which shall be fixed in
the  following  manner.  The Company  shall notify the Trustee in writing of the
amount of Defaulted Interest proposed to be paid on each Security of such series
and the date of the  proposed  payment,  and at the same time the Company  shall
deposit  with the  Trustee  an amount  of money  equal to the  aggregate  amount
proposed  to be paid in  respect  of  such  Defaulted  Interest  or  shall  make
arrangements  satisfactory  to the Trustee for such deposit prior to the date of
the  proposed  payment,  such money when  deposited  to be held in trust for the
benefit of the  Persons  entitled to such  Defaulted  Interest as in this Clause
provided.  Thereupon the Trustee shall fix a Special Record Date for the payment
of such  Defaulted  Interest  which  shall be not more than 15 days and not less
than 10 days prior to the date of the proposed payment and not less than 10 days
after the  receipt by the  Trustee of the notice of the  proposed  payment.  The
Trustee shall  promptly  notify the Company of such Special  Record Date and, in
the name and at the expense of the  Company,  shall cause notice of the proposed
payment of such  Defaulted  Interest and the Special  Record Date therefor to be
given to each  Holder of  Securities  of such  series in the manner set forth in
Section 106, not less than 10 days prior to such Special Record Date.  Notice of
the proposed  payment of such  Defaulted  Interest  and the Special  Record Date
therefor  having been so mailed,  such  Defaulted  Interest shall be paid to the
Persons  in whose  names the  Securities  of such  series  (or their  respective
Predecessor  Securities) are registered at the close of business on such Special
Record Date and shall no longer be payable pursuant to the following Clause (2).

         (2) The  Company  may make  payment of any  Defaulted  Interest  on the
Securities  of any series in any other lawful manner not  inconsistent  with the
requirements of any securities  exchange on which such Securities may be listed,
and upon such notice as may be required by such exchange, if, after notice given
by the Company to the Trustee of the proposed  payment  pursuant to this Clause,
such manner of payment shall be deemed practicable by the Trustee.

         Subject to the  foregoing  provisions  of this  Section,  each Security
delivered  under this Indenture upon  registration of transfer of or in exchange
for or in lieu of any other Security shall carry the rights to interest  accrued
and unpaid, and to accrue, which were carried by such other Security.


                                                       
<PAGE>27

Section 308.  Persons Deemed Owners.

         Prior to due  presentment of a Security for  registration  of transfer,
the  Company,  the Trustee and any agent of the Company or the Trustee may treat
the  Person  in whose  name such  Security  is  registered  as the owner of such
Security  for the purpose of  receiving  payment of principal of and any premium
and  (subject to Section  307) any  interest on such  Security and for all other
purposes  whatsoever,  whether or not such Security be overdue,  and neither the
Company,  the  Trustee  nor any agent of the  Company  or the  Trustee  shall be
affected by notice to the contrary.

Section 309.  Cancellation.

         All Securities  surrendered  for payment,  redemption,  registration of
transfer or exchange or for credit  against any sinking fund payment  shall,  if
surrendered  to any Person other than the  Trustee,  be delivered to the Trustee
and shall be promptly  cancelled  by it. The Company may at any time  deliver to
the  Trustee  for  cancellation  any  Securities  previously  authenticated  and
delivered   hereunder  which  the  Company  may  have  acquired  in  any  manner
whatsoever,  and may deliver to the Trustee (or to any other Person for delivery
to  the  Trustee)  for  cancellation  any  Securities  previously  authenticated
hereunder  which the  Company  has not issued and sold,  and all  Securities  so
delivered  shall be promptly  cancelled by the Trustee.  No Securities  shall be
authenticated in lieu of or in exchange for any Securities cancelled as provided
in this Section, except as expressly permitted by this Indenture.  All cancelled
Securities  held by the  Trustee  shall be  disposed of as directed by a Company
Order.

Section 310.  Computation of Interest.

         Except as  otherwise  specified  as  contemplated  by  Section  301 for
Securities  of any series,  interest on the  Securities  of each series shall be
computed on the basis of a [360-day year of twelve 30-day months.]

                                  ARTICLE FOUR
                           Satisfaction and Discharge

Section 401.  Satisfaction and Discharge of Indenture.

         This Indenture shall upon Company Request cease to be of further effect
(except as to any surviving  rights of  registration  of transfer or exchange of
Securities  herein expressly  provided for), and the Trustee,  at the expense of
the Company,  shall execute proper  instruments  acknowledging  satisfaction and
discharge of this Indenture, when

         (1)      either


                                                       
<PAGE>28


                  (A) all  Securities  theretofore  authenticated  and delivered
                  (other than (i) Securities which have been destroyed,  lost or
                  stolen and which have been  replaced  or paid as  provided  in
                  Section 306 and (ii)  Securities  for whose  payment money has
                  theretofore  been deposited in trust or segregated and held in
                  trust by the Company and  thereafter  repaid to the Company or
                  discharged  from such trust, as provided in Section 1003) have
                  been delivered to the Trustee for cancellation; or

                    (B)  all such  Securities not  theretofore  delivered to the
                         Trustee for cancellation

                           (i)      have become due and payable, or

                           (ii)     will become due and payable at their Stated
                                    Maturity within one year, or

                           (iii) are to be called for redemption within one year
                           under  arrangements  satisfactory  to the Trustee for
                           the giving of notice of  redemption by the Trustee in
                           the name, and at the expense, of the Company, and the
                           Company, in the case of (i), (ii) or (iii) above, has
                           deposited or caused to be deposited  with the Trustee
                           as trust funds in trust for the  purpose  money in an
                           amount  sufficient  to pay and  discharge  the entire
                           indebtedness   on  such  Securities  not  theretofore
                           delivered  to  the  Trustee  for  cancellation,   for
                           principal and any premium and interest to the date of
                           such  deposit (in the case of  Securities  which have
                           become due and payable) or to the Stated  Maturity or
                           Redemption Date, as the case may be;

         (2)      the Company has paid or caused to be paid all other sums 
payable hereunder by the Company; and

         (3) the Company has  delivered to the Trustee an Officers'  Certificate
and an Opinion of Counsel,  each stating that all  conditions  precedent  herein
provided for relating to the  satisfaction  and discharge of this Indenture have
been complied with.

         Notwithstanding  the satisfaction and discharge of this Indenture,  the
obligations of the Company to the Trustee under Section 607, the  obligations of
the Trustee to any  Authenticating  Agent under  Section 614 and, if money shall
have been deposited with the Trustee  pursuant to subclause (B) of Clause (1) of
this  Section,  the  obligations  of the Trustee  under Section 402 and the last
paragraph of Section 1003 shall survive.

Section 402.  Application of Trust Money.

         Subject to the  provisions of the last  paragraph of Section 1003,  all
money deposited with the Trustee  pursuant to Section 401 shall be held in trust
and applied by it, in accordance  with the provisions of the Securities and this
Indenture,  to  the  payment,  either  directly  or  through  any  Paying  Agent
(including  the  Company  acting as its own  Paying  Agent) as the  Trustee  may
determine, to the Persons entitled thereto, of the principal and any premium and
interest for whose payment such money has been deposited with the Trustee.


                                                       
<PAGE>29

                                  ARTICLE FIVE
                                    Remedies

Section 501.  Events of Default.

         "Event of Default",  wherever used herein with respect to Securities of
any series,  means any one of the following events (whatever the reason for such
Event of Default and whether it shall be voluntary or involuntary or be effected
by operation of law or pursuant to any judgment, decree or order of any court or
any order, rule or regulation of any administrative or governmental body):

         (1) default in the payment of any  interest  upon any  Security of that
series when it becomes due and payable,  and  continuance  of such default for a
period of 30 days; or

         (2)  default in the payment of the  principal  of or any premium on any
Security of that series at its Maturity; or

         (3) default in the deposit of any sinking fund payment, when and as due
by the terms of a Security of that series; or

         (4) default in the performance,  or breach, of any covenant or warranty
of the Company in this Indenture (other than a covenant or warranty a default in
whose  performance  or whose breach is  elsewhere  in this Section  specifically
dealt with or which has expressly been included in this Indenture solely for the
benefit of series of Securities other than that series), and continuance of such
default  or  breach  for a period of 60 days  after  there  has been  given,  by
registered  or certified  mail,  to the Company by the Trustee or to the Company
and the  Trustee  by the  Holders  of at least  25% in  principal  amount of the
Outstanding  Securities of that series a written notice  specifying such default
or breach and  requiring  it to be remedied  and  stating  that such notice is a
"Notice of Default" hereunder; or

         (5) a default  under any bond,  debenture,  note or other  evidence  of
indebtedness for money borrowed by the Company or any Principal  Subsidiary Bank
(including a default with  respect to  Securities  of any series other than that
series) having an aggregate  principal amount outstanding of in excess of $ , or
under  any  mortgage,   indenture  or  instrument   (including  this  ----------
Indenture)  under  which there may be issued or by which there may be secured or
evidenced any  indebtedness  for money  borrowed by the Company or any Principal
Subsidiary Bank having an aggregate principal amount outstanding of in excess of
$ , whether  such  indebtedness  now  exists or shall  hereafter  be  ----------
created,  which default (A) shall constitute a failure to pay any portion of the
principal of such  indebtedness when due and payable after the expiration of any
applicable  grace period with respect thereto or (B) shall have resulted in such
indebtedness  becoming or being  declared  due and payable  prior to the date on
which it would  otherwise have become due and payable,  without,  in the case of

                                                       
<PAGE>30


Clause (A), such indebtedness  having been discharged or without, in the case of
Clause (B), such indebtedness having been discharged or such acceleration having
been  rescinded or annulled,  in each such case within a period of 60 days after
there shall have been given,  by registered or certified mail, to the Company by
the  Trustee or to the Company and the Trustee by the Holders of at least 25% in
principal  amount of the Outstanding  Securities of that series a written notice
specifying such default and requiring the Company to cause such  indebtedness to
be discharged  or cause such  acceleration  to be rescinded or annulled,  as the
case may be, and stating  that such  notice is a "Notice of Default"  hereunder,
unless in either  case (A) or (B) such  default  is  contested  in good faith by
appropriate proceedings;  provided,  however, that, subject to the provisions of
Sections 601 and 602, the Trustee shall not be deemed to have  knowledge of such
default unless either (A) a Responsible Officer of the Trustee shall have actual
knowledge of such default or (B) the Trustee shall have received  written notice
thereof  from  the  Company,  from  any  Holder,  from  the  holder  of any such
indebtedness  or from the trustee  under any such  mortgage,  indenture or other
instrument; or

         (6) the entry by a court having  jurisdiction  in the premises of (A) a
decree or order for relief in respect of the Company or any Principal Subsidiary
Bank in an involuntary case or proceeding under any applicable  Federal or State
bankruptcy,  insolvency,  reorganization or other similar law or (B) a decree or
order  adjudging  the  Company or any  Principal  Subsidiary  Bank a bankrupt or
insolvent,  or approving as properly  filed a petition  seeking  reorganization,
arrangement,  adjustment or  composition  of or in respect of the Company or any
Principal  Subsidiary  Bank  under  any  applicable  Federal  or State  law,  or
appointing a custodian, receiver, liquidator, assignee, trustee, sequestrator or
other similar official of the Company or any Principal Subsidiary Bank or of any
substantial  part of its property,  or ordering the winding up or liquidation of
its affairs,  and the  continuance of any such decree or order for relief or any
such other decree or order unstayed and in effect for a period of 60 consecutive
days; or

         (7) the commencement by the Company or any Principal Subsidiary Bank of
a voluntary case or proceeding under any applicable Federal or State bankruptcy,
insolvency,  reorganization  or  other  similar  law or of  any  other  case  or
proceeding to be  adjudicated  a bankrupt or insolvent,  or the consent by it to
the entry of a decree  or order for  relief in  respect  of the  Company  or any
Principal  Subsidiary  Bank in an  involuntary  case  or  proceeding  under  any
applicable  Federal or State  bankruptcy,  insolvency,  reorganization  or other
similar law or to the  commencement  of any  bankruptcy  or  insolvency  case or
proceeding  against  it, or the filing by it of a petition  or answer or consent
seeking  reorganization or relief under any applicable  Federal or State law, or
the  consent by it to the filing of such  petition or to the  appointment  of or
taking  possession  by a custodian,  receiver,  liquidator,  assignee,  trustee,
sequestrator  or  other  similar  official  of  the  Company  or  any  Principal
Subsidiary Bank or of any substantial part of its property,  or the making by it
of an assignment for the benefit of creditors, or the admission by it in writing
of its inability to pay its debts generally as they become due, or the taking of
corporate action by the Company or any Principal  Subsidiary Bank in furtherance
of any such action; or

         (8) any other Event of Default  provided  with respect to Securities of
that series.


                                                       
<PAGE>31


Section 502.  Acceleration of Maturity; Rescission and Annulment.

         If an Event of Default  (other  than an Event of Default  specified  in
Section  501(6) or 501(7)) with respect to  Securities of any series at the time
Outstanding occurs and is continuing, then in every such case the Trustee or the
Holders of not less than 25% in principal  amount of the Outstanding  Securities
of that series may declare the  principal  amount of all the  Securities of that
series  (or,  if any  Securities  of that  series are  Original  Issue  Discount
Securities,  such portion of the principal  amount of such  Securities as may be
specified by the terms thereof) to be due and payable  immediately,  by a notice
in writing to the Company (and to the Trustee if given by Holders), and upon any
such  declaration  such  principal  amount (or  specified  amount)  shall become
immediately due and payable.  If an Event of Default specified in Section 501(6)
or 501 (7) with  respect to  Securities  of any  series at the time  Outstanding
occurs,  the principal  amount of all the  Securities of that series (or, if any
Securities of that series are Original Issue Discount  Securities,  such portion
of the  principal  amount of such  Securities  as may be  specified by the terms
thereof) shall automatically, and without any declaration or other action on the
part of the Trustee or any Holder, become immediately due and payable.

         At any time after such a declaration  of  acceleration  with respect to
Securities  of any  series  has been made and  before a  judgment  or decree for
payment of the money due has been obtained by the Trustee as hereinafter in this
Article  provided,  the  Holders  of a  majority  in  principal  amount  of  the
Outstanding  Securities of that series, by written notice to the Company and the
Trustee, may rescind and annul such declaration and its consequences if

         (1)      the Company has paid or deposited with the Trustee a sum
sufficient to pay

                  (A)     all overdue interest on all Securities of that series,

                  (B) the principal of (and premium,  if any, on) any Securities
                  of that series  which have become due  otherwise  than by such
                  declaration of  acceleration  and any interest  thereon at the
                  rate or rates prescribed therefor in such Securities,

                  (C) to the extent  that  payment of such  interest  is lawful,
                  interest upon overdue interest at the rate or rates prescribed
                  therefor in such Securities, and

                  (D) all sums paid or advanced by the Trustee hereunder and the
                  reasonable compensation,  expenses, disbursements and advances
                  of the Trustee, its agents and counsel;

         and

         (2) all Events of Default  with respect to  Securities  of that series,
other than the  non-payment  of the principal of Securities of that series which
have become due solely by such declaration of  acceleration,  have been cured or
waived as provided in Section 513.

No such  rescission  shall  affect  any  subsequent  default or impair any right
consequent thereon.

                                                       
<PAGE>32


Section 503.  Collection of Indebtedness and Suits for Enforcement by Trustee.

         The Company covenants that if

         (1) default is made in the payment of any interest on any Security when
such interest becomes due and payable and such default continues for a period of
30 days, or

         (2) default is made in the payment of the principal of (or premium,  if
any, on) any Security at the Maturity thereof,  the Company will, upon demand of
the Trustee,  pay to it, for the benefit of the Holders of such Securities,  the
whole  amount  then due and payable on such  Securities  for  principal  and any
premium and interest and, to the extent that payment of such  interest  shall be
legally  enforceable,  interest on any overdue  principal and premium and on any
overdue interest,  at the rate or rates prescribed  therefor in such Securities,
and, in addition  thereto,  such further  amount as shall be sufficient to cover
the costs and expenses of  collection,  including the  reasonable  compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel.

         If an Event of Default with respect to  Securities of any series occurs
and is  continuing,  the  Trustee may in its  discretion  proceed to protect and
enforce its rights and the rights of the Holders of Securities of such series by
such appropriate  judicial  proceedings as the Trustee shall deem most effectual
to protect and enforce any such rights,  whether for the specific enforcement of
any  covenant or  agreement  in this  Indenture or in aid of the exercise of any
power granted herein, or to enforce any other proper remedy.

Section 504.  Trustee May File Proofs of Claim.

         In case of any  judicial  proceeding  relative  to the  Company (or any
other obligor upon the Securities),  its property or its creditors,  the Trustee
shall  be  entitled  and  empowered,  by  intervention  in  such  proceeding  or
otherwise,  to take any and all actions authorized under the Trust Indenture Act
in order to have  claims of the  Holders  and the  Trustee  allowed  in any such
proceeding.  In  particular,  the  Trustee  shall be  authorized  to collect and
receive any moneys or other  property  payable or deliverable on any such claims
and to distribute  the same;  and any custodian,  receiver,  assignee,  trustee,
liquidator,  sequestrator  or  other  similar  official  in  any  such  judicial
proceeding  is hereby  authorized  by each  Holder to make such  payments to the
Trustee and, in the event that the Trustee  shall  consent to the making of such
payments  directly to the  Holders,  to pay to the Trustee any amount due it for
the  reasonable  compensation,  expenses,  disbursements  and  advances  of  the
Trustee,  its agents and counsel,  and any other  amounts due the Trustee  under
Section 607.

         No provision of this Indenture shall be deemed to authorize the Trustee
to  authorize  or consent to or accept or adopt on behalf of any Holder any plan
of  reorganization,   arrangement,   adjustment  or  composition  affecting  the
Securities  or the rights of any Holder  thereof or to authorize  the Trustee to
vote in  respect of the claim of any  Holder in any such  proceeding;  provided,
however,  that the Trustee may, on behalf of the Holders,  vote for the election
of a trustee in bankruptcy  or similar  official and be a member of a creditors'
or other similar committee.

                                                       
<PAGE>33


Section 505.  Trustee May Enforce Claims Without Possession of Securities.

         All rights of action and claims under this  Indenture or the Securities
may be prosecuted  and enforced by the Trustee  without the possession of any of
the Securities or the production thereof in any proceeding relating thereto, and
any such  proceeding  instituted by the Trustee shall be brought in its own name
as trustee of an express  trust,  and any  recovery  of  judgment  shall,  after
provision   for  the   payment  of  the   reasonable   compensation,   expenses,
disbursements  and advances of the Trustee,  its agents and counsel,  be for the
ratable  benefit  of the  Holders  of the  Securities  in  respect of which such
judgment has been recovered.

Section 506.  Application of Money Collected.

         Any money  collected by the Trustee  pursuant to this Article  shall be
applied in the following  order,  at the date or dates fixed by the Trustee and,
in case of the distribution of such money on account of principal or any premium
or interest, upon presentation of the Securities and the notation thereon of the
payment if only partially paid and upon surrender thereof if fully paid:

          First:  To the payment of all amounts  due the Trustee  under  Section
607; and

         Second: To the payment of the amounts then due and unpaid for principal
of and any premium and interest on the Securities in respect of which or for the
benefit of which such money has been collected,  ratably,  without preference or
priority  of any  kind,  according  to the  amounts  due  and  payable  on  such
Securities for principal and any premium and interest, respectively.

Section 507.  Limitation on Suits.

         No  Holder  of any  Security  of any  series  shall  have any  right to
institute any proceeding, judicial or otherwise, with respect to this Indenture,
or for the  appointment  of a  receiver  or  trustee,  or for any  other  remedy
hereunder, unless

         (1) such Holder has previously given written notice to the Trustee of a
continuing Event of Default with respect to the Securities of that series;

         (2) the  Holders  of not less  than  [25%] in  principal  amount of the
Outstanding  Securities  of that series shall have made  written  request to the
Trustee to institute  proceedings in respect of such Event of Default in its own
name as Trustee hereunder;

         (3) such  Holder or  Holders  have  offered to the  Trustee  reasonable
indemnity  against  the  costs,  expenses  and  liabilities  to be  incurred  in
compliance with such request;

         (4) the Trustee for 60 days after its receipt of such  notice,  request
and offer of indemnity has failed to institute any such proceeding; and


                                                       
<PAGE>34


         (5) no direction  inconsistent with such written request has been given
to the  Trustee  during  such  60-day  period by the  Holders of a  majority  in
principal  amount  of the  Outstanding  Securities  of  that  series;  it  being
understood and intended that no one or more of such Holders shall have any right
in any manner  whatever by virtue of, or by availing itself of, any provision of
this  Indenture to affect,  disturb or prejudice the rights of any other of such
Holders, or to obtain or to seek to obtain priority or preference over any other
of such  Holders or to enforce  any right  under this  Indenture,  except in the
manner  herein  provided  and for the equal and  ratable  benefit of all of such
Holders.

Section 508.  Unconditional  Right of Holders to Receive Principal,  Premium and
              Interest.

         Notwithstanding  any other provision in this  Indenture,  the Holder of
any  Security  shall have the right,  which is absolute  and  unconditional,  to
receive payment of the principal of and any premium and (subject to Section 307)
interest on such Security on the respective Stated Maturities  expressed in such
Security  (or,  in the  case  of  redemption,  on the  Redemption  Date)  and to
institute suit for the  enforcement  of any such payment,  and such rights shall
not be impaired without the consent of such Holder.

Section 509.  Restoration of Rights and Remedies.

         If the Trustee or any Holder has  instituted  any proceeding to enforce
any  right  or  remedy  under  this  Indenture  and  such  proceeding  has  been
discontinued or abandoned for any reason,  or has been  determined  adversely to
the  Trustee or to such  Holder,  then and in every  such  case,  subject to any
determination in such proceeding, the Company, the Trustee and the Holders shall
be restored  severally and respectively to their former positions  hereunder and
thereafter all rights and remedies of the Trustee and the Holders shall continue
as though no such proceeding had been instituted.

Section 510.  Rights and Remedies Cumulative.

         Except as otherwise provided with respect to the replacement or payment
of mutilated,  destroyed,  lost or stolen  Securities  in the last  paragraph of
Section 306, no right or remedy herein conferred upon or reserved to the Trustee
or to the Holders is intended to be exclusive of any other right or remedy,  and
every right and remedy shall, to the extent  permitted by law, be cumulative and
in addition to every other right and remedy given  hereunder or now or hereafter
existing at law or in equity or  otherwise.  The  assertion or employment of any
right or remedy  hereunder,  or  otherwise,  shall not  prevent  the  concurrent
assertion or employment of any other appropriate right or remedy.

Section 511.  Delay or Omission Not Waiver.

         No delay or omission of the Trustee or of any Holder of any  Securities
to exercise any right or remedy  accruing upon any Event of Default shall impair
any such right or remedy or  constitute a waiver of any such Event of Default or
an acquiescence therein.  Every right and remedy given by this Article or by law
to the  Trustee or to the  Holders may be  exercised  from time to time,  and as
often as may be deemed expedient,  by the Trustee or by the Holders, as the case
may be.


                                                       
<PAGE>35

Section 512.  Control by Holders.

         The  Holders  of a  majority  in  principal  amount of the  Outstanding
Securities  of any series  shall  have the right to direct the time,  method and
place of conducting any proceeding for any remedy  available to the Trustee,  or
exercising  any trust or power  conferred  on the  Trustee,  with respect to the
Securities of such series, provided that

     (1) such  direction  shall not be in conflict  with any rule of law or with
this Indenture, and

     (2) the  Trustee  may take any other  action  deemed  proper by the Trustee
which is not inconsistent with such direction.

Section 513.  Waiver of Past Defaults.

         The  Holders of not less than a  majority  in  principal  amount of the
Outstanding  Securities  of any series  may on behalf of the  Holders of all the
Securities of such series waive any past default  hereunder with respect to such
series and its consequences, except a default

     (1) in the  payment of the  principal  of or any premium or interest on any
Security of such series, or

     (2) in respect of a covenant or provision  hereof which under  Article Nine
cannot  be  modified  or  amended  without  the  consent  of the  Holder of each
Outstanding Security of such series affected.

         Upon any such waiver,  such default shall cease to exist, and any Event
of  Default  arising  therefrom  shall be deemed to have been  cured,  for every
purpose of this Indenture;  but no such waiver shall extend to any subsequent or
other default or impair any right consequent thereon.

Section 514.  Undertaking for Costs.

         In any suit for the  enforcement  of any  right or  remedy  under  this
Indenture,  or in any suit against the Trustee for any action taken, suffered or
omitted by it as Trustee, a court may require any party litigant in such suit to
file an  undertaking to pay the costs of such suit, and may assess costs against
any such party  litigant,  in the manner and to the extent provided in the Trust
Indenture  Act;  provided that neither this Section nor the Trust  Indenture Act
shall be deemed to authorize any court to require such an undertaking or to make
such an assessment in any suit instituted by the Company.

Section 515.  Waiver of Usury, Stay or Extension Laws.


                                                       
<PAGE>36


         The Company  covenants  (to the extent that it may lawfully do so) that
it will not at any time insist upon, or plead, or in any manner whatsoever claim
or take the benefit or advantage  of, any usury,  stay or extension law wherever
enacted,  now or at any time hereafter in force,  which may affect the covenants
or the performance of this Indenture; and the Company (to the extent that it may
lawfully do so) hereby expressly waives all benefit or advantage of any such law
and  covenants  that it will not hinder,  delay or impede the  execution  of any
power herein granted to the Trustee, but will suffer and permit the execution of
every such power as though no such law had been enacted.

                                   ARTICLE SIX
                                   The Trustee

Section 601.  Certain Duties and Responsibilities.

         The duties and  responsibilities of the Trustee shall be as provided by
the Trust  Indenture Act.  Notwithstanding  the foregoing,  no provision of this
Indenture shall require the Trustee to expend or risk its own funds or otherwise
incur any financial liability in the performance of any of its duties hereunder,
or in the exercise of any of its rights or powers,  if it shall have  reasonable
grounds for believing that repayment of such funds or adequate indemnity against
such risk or liability is not  reasonably  assured to it. Whether or not therein
expressly so provided, every provision of this Indenture relating to the conduct
or affecting  the  liability of or affording  protection to the Trustee shall be
subject to the provisions of this Section.

Section 602.  Notice of Defaults.

         If a default occurs hereunder with respect to Securities of any series,
the Trustee  shall give the Holders of  Securities of such series notice of such
default as and to the extent  provided  by the Trust  Indenture  Act;  provided,
however,  that in the case of any default of the character  specified in Section
501(4) with  respect to  Securities  of such  series,  no such notice to Holders
shall be given  until at least 30 days  after the  occurrence  thereof.  For the
purpose of this Section,  the term "default"  means any event which is, or after
notice or lapse of time or both would  become,  an Event of Default with respect
to Securities of such series.
Section 603.  Certain Rights of Trustee.

         Subject to the provisions of Section 601:

         (1) the Trustee may rely and shall be protected in acting or refraining
from acting upon any resolution,  certificate,  statement,  instrument, opinion,
report, notice, request, direction, consent, order, bond, debenture, note, other
evidence of indebtedness or other paper or document believed by it to be genuine
and to have been signed or presented by the proper party or parties;

         (2) any request or direction of the Company  mentioned  herein shall be
sufficiently evidenced by a Company Request or Company Order, and any resolution
of the Board of Directors shall be sufficiently evidenced by a Board Resolution;

                                                       
<PAGE>37


         (3) whenever in the  administration of this Indenture the Trustee shall
deem it  desirable  that a matter  be  proved or  established  prior to  taking,
suffering or omitting any action  hereunder,  the Trustee (unless other evidence
be herein specifically prescribed) may, in the absence of bad faith on its part,
rely upon an Officers' Certificate;

         (4) the Trustee may consult with counsel and the written advice of such
counsel or any Opinion of Counsel shall be full and complete  authorization  and
protection in respect of any action  taken,  suffered or omitted by it hereunder
in good faith and in reliance thereon;

         (5) the Trustee  shall be under no  obligation  to exercise  any of the
rights or powers  vested in it by this  Indenture at the request or direction of
any of the Holders  pursuant to this  Indenture,  unless such Holders shall have
offered to the  Trustee  reasonable  security  or  indemnity  against the costs,
expenses and  liabilities  which might be incurred by it in compliance with such
request or direction;

         (6) the Trustee shall not be bound to make any  investigation  into the
facts or matters stated in any resolution,  certificate,  statement, instrument,
opinion,  report, notice, request,  direction,  consent, order, bond, debenture,
note,  other  evidence  of  indebtedness  or other  paper or  document,  but the
Trustee, in its discretion,  may make such further inquiry or investigation into
such facts or matters as it may see fit, and, if the Trustee shall  determine to
make such further inquiry or investigation,  it shall be entitled to examine the
books, records and premises of the Company,  personally or by agent or attorney;
and

         (7) the Trustee may  execute any of the trusts or powers  hereunder  or
perform  any  duties  hereunder  either  directly  or by or  through  agents  or
attorneys  and the  Trustee  shall  not be  responsible  for any  misconduct  or
negligence  on the part of any agent or attorney  appointed  with due care by it
hereunder.

Section 604.  Not Responsible for Recitals or Issuance of Securities.

         The  recitals  contained  herein  and in  the  Securities,  except  the
Trustee's  certificates of  authentication,  shall be taken as the statements of
the Company,  and neither the Trustee nor any  Authenticating  Agent assumes any
responsibility for their correctness. The Trustee makes no representations as to
the validity or sufficiency of this Indenture or of the Securities.  Neither the
Trustee  nor  any  Authenticating  Agent  shall  be  accountable  for the use or
application by the Company of Securities or the proceeds thereof.


                                                       
<PAGE>38


Section 605.  May Hold Securities.

         The Trustee,  any Authenticating  Agent, any Paying Agent, any Security
Registrar  or any other agent of the  Company,  in its  individual  or any other
capacity, may become the owner or pledgee of Securities and, subject to Sections
608 and 613, may  otherwise  deal with the Company with the same rights it would
have if it were  not  Trustee,  Authenticating  Agent,  Paying  Agent,  Security
Registrar or such other agent.

Section 606.  Money Held in Trust.

         Money held by the  Trustee in trust  hereunder  need not be  segregated
from other  funds  except to the extent  required by law.  The Trustee  shall be
under no liability for interest on any money received by it hereunder  except as
otherwise agreed with the Company.

Section 607.  Compensation and Reimbursement.

         The Company agrees

         (1) to pay to the Trustee from time to time reasonable compensation for
all services rendered by it hereunder (which  compensation  shall not be limited
by any provision of law in regard to the compensation of a trustee of an express
trust);

         (2) except as otherwise  expressly  provided  herein,  to reimburse the
Trustee upon its request for all reasonable expenses, disbursements and advances
incurred  or made by the  Trustee  in  accordance  with  any  provision  of this
Indenture   (including  the  reasonable   compensation   and  the  expenses  and
disbursements of its agents and counsel), except any such expense,  disbursement
or advance as may be attributable to its negligence or bad faith; and

         (3) to indemnify the Trustee for, and to hold it harmless against,  any
loss, liability or expense incurred without negligence or bad faith on its part,
arising out of or in connection  with the  acceptance or  administration  of the
trust or trusts hereunder,  including the costs and expenses of defending itself
against any claim or liability in connection with the exercise or performance of
any of its powers or duties hereunder.

Section 608.  Conflicting Interests.

         If the Trustee has or shall acquire a conflicting  interest  within the
meaning of the Trust  Indenture  Act, the Trustee  shall either  eliminate  such
interest or resign,  to the extent and in the manner provided by, and subject to
the provisions  of, the Trust  Indenture Act and this  Indenture.  To the extent
permitted  by such Act,  the Trustee  shall not be deemed to have a  conflicting
interest  by virtue of being a trustee  under  this  Indenture  with  respect to
Securities  of more than one series  [or a trustee  under -- list here any prior
indentures  between the Company and the Trustee that have not been satisfied and
discharged  and that may be excluded by the proviso to Section  310(b)(1) of the
Trust Indenture Act].

Section 609.  Corporate Trustee Required; Eligibility.

                                                       
<PAGE>39


         There shall at all times be one (and only one) Trustee  hereunder  with
respect to the  Securities  of each series,  which may be Trustee  hereunder for
Securities of one or more other  series.  Each Trustee shall be a Person that is
eligible  pursuant  to the Trust  Indenture  Act to act as such,  has a combined
capital and surplus of at least  $50,000,000  and has its Corporate Trust Office
in the  [Borough  of  Manhattan,  The  City of New  York].  If any  such  Person
publishes  reports of  condition  at least  annually,  pursuant to law or to the
requirements of its supervising or examining authority, then for the purposes of
this  Section  and to the  extent  permitted  by the Trust  Indenture  Act,  the
combined  capital and surplus of such Person  shall be deemed to be its combined
capital  and  surplus as set forth in its most  recent  report of  condition  so
published.  If at any time the Trustee  with  respect to the  Securities  of any
series  shall cease to be eligible in  accordance  with the  provisions  of this
Section,  it  shall  resign  immediately  in the  manner  and  with  the  effect
hereinafter specified in this Article.

Section 610.  Resignation and Removal; Appointment of Successor.

         No  resignation  or  removal of the  Trustee  and no  appointment  of a
successor  Trustee  pursuant to this Article  shall become  effective  until the
acceptance  of  appointment  by the  successor  Trustee in  accordance  with the
applicable requirements of Section 611.

         The Trustee may resign at any time with  respect to the  Securities  of
one or more  series by giving  written  notice  thereof to the  Company.  If the
instrument of acceptance  by a successor  Trustee  required by Section 611 shall
not have been  delivered to the Trustee  within 30 days after the giving of such
notice of resignation, the resigning Trustee may petition any court of competent
jurisdiction  for the  appointment  of a successor  Trustee  with respect to the
Securities of such series.

         The Trustee may be removed at any time with  respect to the  Securities
of any series by Act of the  Holders of a majority  in  principal  amount of the
Outstanding  Securities  of such  series,  delivered  to the  Trustee and to the
Company.

         If at any time:

         (1) the  Trustee  shall fail to comply with  Section 608 after  written
request therefor by the Company or by any Holder who has been a bona fide Holder
of a Security for at least six months, or

         (2) the Trustee shall cease to be eligible  under Section 609 and shall
fail to resign  after  written  request  therefor  by the Company or by any such
Holder, or

         (3) the Trustee shall become incapable of acting or shall be adjudged a
bankrupt or insolvent  or a receiver of the Trustee or of its property  shall be
appointed or any public  officer  shall take charge or control of the Trustee or
of its property or affairs for the purpose of  rehabilitation,  conservation  or
liquidation,  then, in any such case, (A) the Company by a Board  Resolution may
remove the Trustee  with  respect to all  Securities,  or (B) subject to Section
514,  any Holder who has been a bona fide Holder of a Security  for at least six
months may, on behalf of himself and all others similarly situated, petition any
court of competent  jurisdiction  for the removal of the Trustee with respect to
all Securities and the appointment of a successor Trustee or Trustees.


                                                       
<PAGE>40

         If the Trustee shall resign,  be removed or become incapable of acting,
or if a vacancy shall occur in the office of Trustee for any cause, with respect
to the  Securities of one or more series,  the Company,  by a Board  Resolution,
shall  promptly  appoint a  successor  Trustee or Trustees  with  respect to the
Securities of that or those series (it being  understood that any such successor
Trustee may be appointed with respect to the Securities of one or more or all of
such series and that at any time there shall be only one Trustee with respect to
the  Securities of any  particular  series) and shall comply with the applicable
requirements of Section 611. If, within one year after such resignation, removal
or  incapability,  or the occurrence of such vacancy,  a successor  Trustee with
respect to the Securities of any series shall be appointed by Act of the Holders
of a majority in principal  amount of the Outstanding  Securities of such series
delivered  to the Company and the retiring  Trustee,  the  successor  Trustee so
appointed shall, forthwith upon its acceptance of such appointment in accordance
with the applicable  requirements of Section 611,  become the successor  Trustee
with respect to the  Securities of such series and to that extent  supersede the
successor Trustee appointed by the Company. If no successor Trustee with respect
to the  Securities  of any series shall have been so appointed by the Company or
the Holders and accepted  appointment in the manner required by Section 611, any
Holder who has been a bona fide Holder of a Security of such series for at least
six months may, on behalf of himself and all others similarly situated, petition
any court of competent  jurisdiction for the appointment of a successor  Trustee
with respect to the Securities of such series.

         The Company shall give notice of each  resignation  and each removal of
the Trustee with respect to the Securities of any series and each appointment of
a successor  Trustee with respect to the Securities of any series to all Holders
of Securities of such series in the manner  provided in Section 106. Each notice
shall include the name of the successor  Trustee with respect to the  Securities
of such series and the address of its Corporate Trust Office.

Section 611.  Acceptance of Appointment by Successor.

         In  case of the  appointment  hereunder  of a  successor  Trustee  with
respect to all  Securities,  every such  successor  Trustee so  appointed  shall
execute,  acknowledge and deliver to the Company and to the retiring  Trustee an
instrument accepting such appointment,  and thereupon the resignation or removal
of the retiring  Trustee  shall become  effective  and such  successor  Trustee,
without any further act,  deed or  conveyance,  shall become vested with all the
rights,  powers,  trusts and duties of the retiring Trustee; but, on the request
of the Company or the successor  Trustee,  such  retiring  Trustee  shall,  upon
payment of its charges,  execute and deliver an instrument  transferring to such
successor Trustee all the rights,  powers and trusts of the retiring Trustee and
shall duly assign,  transfer and deliver to such successor  Trustee all property
and money held by such retiring Trustee hereunder.


                                                       
<PAGE>41


         In  case of the  appointment  hereunder  of a  successor  Trustee  with
respect to the Securities of one or more (but not all) series, the Company,  the
retiring  Trustee and each  successor  Trustee with respect to the Securities of
one or more series shall  execute and deliver an indenture  supplemental  hereto
wherein each successor Trustee shall accept such appointment and which (1) shall
contain  such  provisions  as shall be  necessary  or  desirable to transfer and
confirm to, and to vest in,  each  successor  Trustee  all the  rights,  powers,
trusts and duties of the retiring Trustee with respect to the Securities of that
or those series to which the appointment of such successor Trustee relates,  (2)
if the retiring  Trustee is not retiring with respect to all  Securities,  shall
contain  such  provisions  as shall be deemed  necessary or desirable to confirm
that all the rights,  powers,  trusts and duties of the  retiring  Trustee  with
respect  to the  Securities  of that or those  series as to which  the  retiring
Trustee is not retiring shall continue to be vested in the retiring Trustee, and
(3) shall add to or change any of the  provisions of this  Indenture as shall be
necessary  to  provide  for or  facilitate  the  administration  of  the  trusts
hereunder by more than one Trustee,  it being  understood that nothing herein or
in such supplemental indenture shall constitute such Trustees co-trustees of the
same  trust and that each such  Trustee  shall be  trustee  of a trust or trusts
hereunder separate and apart from any trust or trusts hereunder  administered by
any other such Trustee; and upon the execution and delivery of such supplemental
indenture  the  resignation  or removal of the  retiring  Trustee  shall  become
effective  to the  extent  provided  therein  and each such  successor  Trustee,
without any further act,  deed or  conveyance,  shall become vested with all the
rights,  powers,  trusts and duties of the retiring  Trustee with respect to the
Securities of that or those series to which the  appointment  of such  successor
Trustee relates;  but, on request of the Company or any successor Trustee,  such
retiring  Trustee  shall duly  assign,  transfer  and deliver to such  successor
Trustee all  property and money held by such  retiring  Trustee  hereunder  with
respect to the  Securities of that or those series to which the  appointment  of
such successor Trustee relates.

         Upon request of any such successor  Trustee,  the Company shall execute
any and all instruments  for more fully and certainly  vesting in and confirming
to such successor Trustee all such rights,  powers and trusts referred to in the
first or second preceding paragraph, as the case may be.

         No successor Trustee shall accept its appointment unless at the time of
such  acceptance  such  successor  Trustee shall be qualified and eligible under
this Article.

Section 612.  Merger, Conversion, Consolidation or Succession to Business.

         Any  corporation  into which the Trustee may be merged or  converted or
with which it may be consolidated, or any corporation resulting from any merger,
conversion  or  consolidation  to which  the  Trustee  shall be a party,  or any
corporation  succeeding to all or substantially all the corporate trust business
of the Trustee,  shall be the successor of the Trustee hereunder,  provided such
corporation  shall be  otherwise  qualified  and  eligible  under this  Article,
without the  execution  or filing of any paper or any further act on the part of
any of the parties hereto. In case any Securities shall have been authenticated,
but not  delivered,  by the Trustee  then in office,  any  successor  by merger,
conversion  or  consolidation  to such  authenticating  Trustee  may adopt  such
authentication  and deliver the Securities so authenticated with the same effect
as if such successor Trustee had itself authenticated such Securities.

Section 613.  Preferential Collection of Claims Against Company.


                                                       
<PAGE>42


         If and when the  Trustee  shall be or become a creditor  of the Company
(or any other obligor upon the Securities),  the Trustee shall be subject to the
provisions of the Trust Indenture Act regarding the collection of claims against
the Company (or any such other obligor).

Section 614.  Appointment of Authenticating Agent.

         The Trustee may appoint an Authenticating  Agent or Agents with respect
to one or more series of  Securities  which shall be authorized to act on behalf
of the Trustee to  authenticate  Securities  of such series issued upon original
issue and upon exchange,  registration of transfer or partial redemption thereof
or pursuant to Section 306, and Securities so authenticated shall be entitled to
the  benefits  of this  Indenture  and  shall be valid  and  obligatory  for all
purposes as if authenticated  by the Trustee  hereunder.  Wherever  reference is
made in this Indenture to the  authentication  and delivery of Securities by the
Trustee or the Trustee's certificate of authentication,  such reference shall be
deemed to include  authentication  and  delivery  on behalf of the Trustee by an
Authenticating  Agent and a certificate of authentication  executed on behalf of
the  Trustee by an  Authenticating  Agent.  Each  Authenticating  Agent shall be
acceptable to the Company and shall at all times be a corporation  organized and
doing business under the laws of the United States of America, any State thereof
or the District of Columbia, authorized under such laws to act as Authenticating
Agent,  having a combined  capital and surplus of not less than  $50,000,000 and
subject to supervision or  examination  by Federal or State  authority.  If such
Authenticating Agent publishes reports of condition at least annually,  pursuant
to law or to the requirements of said supervising or examining  authority,  then
for the  purposes  of this  Section,  the  combined  capital and surplus of such
Authenticating  Agent shall be deemed to be its combined  capital and surplus as
set forth in its most recent report of condition so published. If at any time an
Authenticating  Agent  shall  cease  to  be  eligible  in  accordance  with  the
provisions of this Section,  such Authenticating  Agent shall resign immediately
in the manner and with the effect specified in this Section.

         Any  corporation  into which an  Authenticating  Agent may be merged or
converted or with which it may be  consolidated,  or any  corporation  resulting
from any merger,  conversion or consolidation to which such Authenticating Agent
shall be a party,  or any  corporation  succeeding  to the  corporate  agency or
corporate  trust business of an  Authenticating  Agent,  shall continue to be an
Authenticating  Agent,  provided such  corporation  shall be otherwise  eligible
under this Section,  without the execution or filing of any paper or any further
act on the part of the Trustee or the Authenticating Agent.

         An Authenticating Agent may resign at any time by giving written notice
thereof to the Trustee and to the Company. The Trustee may at any time terminate
the agency of an  Authenticating  Agent by giving written notice thereof to such
Authenticating  Agent  and to the  Company.  Upon  receiving  such a  notice  of
resignation  or  upon  such  a  termination,   or  in  case  at  any  time  such
Authenticating  Agent  shall  cease  to  be  eligible  in  accordance  with  the
provisions of this Section,  the Trustee may appoint a successor  Authenticating
Agent  which  shall be  acceptable  to the Company and shall give notice of such
appointment  in the manner  provided in Section 106 to all Holders of Securities
of the series with respect to which such  Authenticating  Agent will serve.  Any
successor  Authenticating  Agent upon  acceptance of its  appointment  hereunder


                                                       
<PAGE>43


shall become  vested with all the rights,  powers and duties of its  predecessor
hereunder,  with like effect as if originally named as an Authenticating  Agent.
No successor  Authenticating  Agent shall be appointed unless eligible under the
provisions of this Section.

         The  Trustee  agrees to pay to each  Authenticating  Agent from time to
time  reasonable  compensation  for its  services  under this  Section,  and the
Trustee shall be entitled to be  reimbursed  for such  payments,  subject to the
provisions of Section 607.

         If an  appointment  with respect to one or more series is made pursuant
to this Section,  the  Securities of such series may have endorsed  thereon,  in
addition  to  the  Trustee's  certificate  of  authentication,   an  alternative
certificate of authentication in the following form:

         This is one of the Securities of the series designated therein referred
to in the within-mentioned Indenture.

                    ........................................,
                                                  As Trustee

                    By......................................,
                                      As Authenticating Agent

                    By.......................................
                                                              Authorized Officer


                                  ARTICLE SEVEN
                Holders' Lists and Reports by Trustee and Company

Section 701.  Company to Furnish Trustee Names and Addresses of Holders.

     The  Company  will  furnish or cause to be  furnished  to the  Trustee  (1)
semi-annually,  not later than ...............  and ...................  in each
year, a list, in such form as the Trustee may reasonably  require,  of the names
and  addresses of the Holders of  Securities  of each series as of the preceding
 .............. or .............., as the case may be, and

         (2) at such other times as the  Trustee may request in writing,  within
30 days after the receipt by the Company of any such request,  a list of similar
form and  content as of a date not more than 15 days prior to the time such list
is furnished;  excluding from any such list names and addresses  received by the
Trustee in its capacity as Security Registrar.

                                                       

<PAGE>44


Section 702.  Preservation of Information; Communications to Holders.

         The  Trustee  shall  preserve,  in as  current a form as is  reasonably
practicable,  the names and  addresses  of Holders  contained in the most recent
list  furnished  to the  Trustee as  provided  in Section  701 and the names and
addresses  of Holders  received  by the  Trustee  in its  capacity  as  Security
Registrar.  The  Trustee may  destroy  any list  furnished  to it as provided in
Section 701 upon receipt of a new list so furnished.
  The rights of Holders to communicate  with other Holders with respect to their
rights  under this  Indenture  or under the  Securities,  and the  corresponding
rights  and  privileges  of the  Trustee,  shall  be as  provided  by the  Trust
Indenture Act.
  Every Holder of Securities, by receiving and holding the same, agrees with the
Company and the Trustee  that  neither the Company nor the Trustee nor any agent
of either of them  shall be held  accountable  by  reason of any  disclosure  of
information  as to names and  addresses  of Holders  made  pursuant to the Trust
Indenture Act.

Section 703.  Reports by Trustee.

         The Trustee  shall  transmit to Holders  such  reports  concerning  the
Trustee and its actions under this Indenture as may be required  pursuant to the
Trust Indenture Act at the times and in the manner provided pursuant thereto.

     Reports so required to be transmitted at stated  intervals of not more than
12 months shall be transmitted no later than ............ in each calendar year,
commencing in ............

         A copy of each such report shall,  at the time of such  transmission to
Holders,  be filed by the  Trustee  with  each  stock  exchange  upon  which any
Securities are listed,  with the  Commission  and with the Company.  The Company
will notify the Trustee when any Securities are listed on any stock exchange.

Section 704.  Reports by Company.

         The  Company  shall  file  with the  Trustee  and the  Commission,  and
transmit to Holders,  such  information,  documents and other reports,  and such
summaries thereof, as may be required pursuant to the Trust Indenture Act at the
times and in the manner  provided  pursuant to such Act;  provided that any such
information,  documents  or reports  required  to be filed  with the  Commission
pursuant  to  Section  13 or 15(d) of the  Exchange  Act shall be filed with the
Trustee  within  15 days  after  the same is so  required  to be filed  with the
Commission.

                                  ARTICLE EIGHT
              Consolidation, Merger, Conveyance, Transfer or Lease

Section 801.  Company May Consolidate, Etc., Only on Certain Terms.

         The Company shall not  consolidate  with or merge into any other Person
or convey,  transfer  or lease its  properties  and assets  substantially  as an
entirety  to any  Person,  and the  Company  shall  not  permit  any  Person  to
consolidate  with or merge into the  Company or  convey,  transfer  or lease its
properties and assets substantially as an entirety to the Company, unless:


                                                       
<PAGE>45

         (1) in case the Company  shall  consolidate  with or merge into another
Person or convey,  transfer or lease its properties and assets  substantially as
an entirety to any Person, the Person formed by such consolidation or into which
the Company is merged or the Person which acquires by conveyance or transfer, or
which  leases,  the  properties  and assets of the Company  substantially  as an
entirety  shall be a corporation,  partnership or trust,  shall be organized and
validly  existing  under the laws of the  United  States of  America,  any State
thereof or the District of Columbia and shall expressly  assume, by an indenture
supplemental hereto, executed and delivered to the Trustee, in form satisfactory
to the Trustee, the due and punctual payment of the principal of and any premium
and interest on all the  Securities  and the  performance or observance of every
covenant  of this  Indenture  on the  part of the  Company  to be  performed  or
observed;

         (2)  immediately  after giving effect to such  transaction and treating
any indebtedness which becomes an obligation of the Company or any Subsidiary as
a result of such  transaction  as having  been  incurred  by the Company or such
Subsidiary at the time of such  transaction,  no Event of Default,  and no event
which,  after notice or lapse of time or both, would become an Event of Default,
shall have happened and be continuing;

         (3) if,  as a  result  of any  such  consolidation  or  merger  or such
conveyance,  transfer or lease, properties or assets of the Company would become
subject to a mortgage,  pledge,  lien,  security  interest or other  encumbrance
which would not be permitted by this  Indenture,  the Company or such  successor
Person,  as the case  may be,  shall  take  such  steps  as  shall be  necessary
effectively to secure the Securities  equally and ratably with (or prior to) all
indebtedness secured thereby; and

         (4) the Company has  delivered to the Trustee an Officers'  Certificate
and an  Opinion  of  Counsel,  each  stating  that such  consolidation,  merger,
conveyance,  transfer or lease and, if a  supplemental  indenture is required in
connection with such transaction,  such supplemental  indenture comply with this
Article and that all conditions  precedent  herein provided for relating to such
transaction have been complied with.

Section 802.  Successor Substituted.

         Upon any  consolidation  of the Company  with, or merger of the Company
into,  any other Person or any  conveyance,  transfer or lease of the properties
and assets of the  Company  substantially  as an  entirety  in  accordance  with
Section 801, the successor Person formed by such consolidation or into which the
Company is merged or to which such  conveyance,  transfer or lease is made shall
succeed to, and be  substituted  for, and may exercise every right and power of,
the  Company  under this  Indenture  with the same  effect as if such  successor
Person had been named as the Company herein, and thereafter,  except in the case
of a lease,  the  predecessor  Person shall be relieved of all  obligations  and
covenants under this Indenture and the Securities.


                                                       
<PAGE>46


                                  ARTICLE NINE
                             Supplemental Indentures

Section 901.  Supplemental Indentures Without Consent of Holders.

         Without the consent of any Holders,  the Company,  when authorized by a
Board Resolution,  and the Trustee, at any time and from time to time, may enter
into one or more indentures  supplemental  hereto,  in form  satisfactory to the
Trustee, for any of the following purposes:

         (1) to evidence the succession of another Person to the Company and the
assumption by any such  successor of the covenants of the Company  herein and in
the Securities; or

         (2) to add to the  covenants  of the  Company  for the  benefit  of the
Holders of all or any series of Securities  (and if such covenants are to be for
the benefit of less than all series of  Securities,  stating that such covenants
are  expressly  being  included  solely for the  benefit  of such  series) or to
surrender any right or power herein conferred upon the Company; or

         (3) to add any  additional  Events of  Default  for the  benefit of the
Holders of all or any series of  Securities  (and if such  additional  Events of
Default are to be for the benefit of less than all series of Securities, stating
that such  additional  Events of Default are expressly being included solely for
the benefit of such series); or

         (4) to add to or change any of the provisions of this Indenture to such
extent as shall be necessary to permit or facilitate  the issuance of Securities
in bearer form,  registrable  or not  registrable  as to principal,  and with or
without interest coupons,  or to permit or facilitate the issuance of Securities
in uncertificated form; or

         (5) to add  to,  change  or  eliminate  any of the  provisions  of this
Indenture in respect of one or more series of Securities, provided that any such
addition,  change or elimination  (A) shall neither (i) apply to any Security of
any series  created  prior to the execution of such  supplemental  indenture and
entitled  to the  benefit of such  provision  nor (ii)  modify the rights of the
Holder of any such Security  with respect to such  provision or (B) shall become
effective only when there is no such Security Outstanding; or

         (6)      to secure the Securities; or

         (7)      to establish the form or terms of Securities of any series as 
permitted by Sections 201 and 301; or

         (8) to evidence and provide for the acceptance of appointment hereunder
by a successor  Trustee with respect to the Securities of one or more series and
to add to or  change  any of the  provisions  of  this  Indenture  as  shall  be
necessary  to  provide  for or  facilitate  the  administration  of  the  trusts
hereunder by more than one Trustee, pursuant to the requirements of Section 611;
or

                                                       
<PAGE>47


         (9) to cure any  ambiguity,  to correct  or  supplement  any  provision
herein which may be defective or inconsistent  with any other provision  herein,
or to make any other  provisions  with respect to matters or  questions  arising
under this  Indenture,  provided  that such  action  pursuant to this Clause (9)
shall not  adversely  affect the  interests of the Holders of  Securities of any
series in any material respect.

Section 902.  Supplemental Indentures With Consent of Holders.

         With  the  consent  of the  Holders  of not  less  than a  majority  in
principal  amount of the Outstanding  Securities of each series affected by such
supplemental  indenture, by Act of said Holders delivered to the Company and the
Trustee, the Company, when authorized by a Board Resolution, and the Trustee may
enter into an indenture  or  indentures  supplemental  hereto for the purpose of
adding any  provisions  to or changing in any manner or  eliminating  any of the
provisions  of this  Indenture  or of  modifying in any manner the rights of the
Holders of Securities of such series under this  Indenture;  provided,  however,
that no such supplemental  indenture shall, without the consent of the Holder of
each Outstanding Security affected thereby,

         (1) change the Stated  Maturity of the principal of, or any  instalment
of principal of or interest on, any  Security,  or reduce the  principal  amount
thereof  or the  rate of  interest  thereon  or any  premium  payable  upon  the
redemption  thereof,  or reduce the amount of the principal of an Original Issue
Discount  Security or any other  Security  which would be due and payable upon a
declaration of acceleration of the Maturity  thereof pursuant to Section 502, or
change  any Place of  Payment  where,  or the coin or  currency  in  which,  any
Security or any premium or interest  thereon is payable,  or impair the right to
institute  suit for the  enforcement  of any such payment on or after the Stated
Maturity  thereof  (or, in the case of  redemption,  on or after the  Redemption
Date), or

         (2)  reduce  the  percentage  in  principal  amount of the  Outstanding
Securities of any series,  the consent of whose Holders is required for any such
supplemental  indenture,  or the consent of whose  Holders is  required  for any
waiver (of  compliance  with  certain  provisions  of this  Indenture or certain
defaults hereunder and their consequences) provided for in this Indenture, or

         (3)  modify  any of the  provisions  of this  Section,  Section  513 or
Section 1009,  except to increase any such percentage or to provide that certain
other  provisions  of this  Indenture  cannot be modified or waived  without the
consent of the Holder of each Outstanding  Security affected thereby;  provided,
however,  that this  clause  shall not be deemed to require  the  consent of any
Holder  with  respect  to  changes  in  the  references  to  "the  Trustee"  and
concomitant  changes in this Section and Section  1009,  or the deletion of this
proviso, in accordance with the requirements of Sections 611 and 901(8).

         A  supplemental  indenture  which changes or eliminates any covenant or
other  provision of this Indenture  which has expressly been included solely for
the benefit of one or more  particular  series of Securities,  or which modifies
the rights of the Holders of  Securities  of such  series  with  respect to such
covenant or other provision, shall be deemed not to affect the rights under this
Indenture of the Holders of Securities of any other series.


                                                       
<PAGE>48

         It shall not be necessary  for any Act of Holders under this Section to
approve the particular form of any proposed supplemental indenture, but it shall
be sufficient if such Act shall approve the substance thereof.

Section 903.  Execution of Supplemental Indentures.

         In  executing,  or  accepting  the  additional  trusts  created by, any
supplemental indenture permitted by this Article or the modifications thereby of
the trusts created by this Indenture,  the Trustee shall be entitled to receive,
and  (subject  to Section  601) shall be fully  protected  in relying  upon,  an
Opinion of Counsel stating that the execution of such supplemental  indenture is
authorized  or  permitted by this  Indenture.  The Trustee may, but shall not be
obligated  to,  enter into any such  supplemental  indenture  which  affects the
Trustee's own rights, duties or immunities under this Indenture or otherwise.

Section 904.  Effect of Supplemental Indentures.

         Upon the execution of any  supplemental  indenture  under this Article,
this Indenture shall be modified in accordance therewith,  and such supplemental
indenture shall form a part of this Indenture for all purposes; and every Holder
of Securities  theretofore or thereafter  authenticated and delivered  hereunder
shall be bound thereby.

Section 905.  Conformity with Trust Indenture Act.

         Every  supplemental  indenture  executed pursuant to this Article shall
conform to the requirements of the Trust Indenture Act.

Section 906.  Reference in Securities to Supplemental Indentures.

         Securities  of  any  series   authenticated  and  delivered  after  the
execution of any supplemental  indenture pursuant to this Article may, and shall
if required by the Trustee,  bear a notation in form  approved by the Trustee as
to any matter provided for in such supplemental  indenture. If the Company shall
so determine,  new  Securities  of any series so modified as to conform,  in the
opinion of the Trustee and the Company,  to any such supplemental  indenture may
be prepared and executed by the Company and  authenticated  and delivered by the
Trustee in exchange for Outstanding Securities of such series.


                                                       
<PAGE>49


                                   ARTICLE TEN
                                    Covenants

Section 1001.  Payment of Principal, Premium and Interest.

         The  Company  covenants  and agrees for the  benefit of each  series of
Securities that it will duly and punctually pay the principal of and any premium
and interest on the  Securities of that series in  accordance  with the terms of
the Securities and this Indenture.

Section 1002.  Maintenance of Office or Agency.

         The  Company  will  maintain in each Place of Payment for any series of
Securities an office or agency where  Securities of that series may be presented
or surrendered for payment,  where  Securities of that series may be surrendered
for  registration  of transfer or exchange  and where  notices and demands to or
upon the Company in respect of the  Securities of that series and this Indenture
may be served. The Company will give prompt written notice to the Trustee of the
location,  and any change in the location,  of such office or agency.  If at any
time the Company  shall fail to maintain any such  required  office or agency or
shall fail to furnish the Trustee with the address thereof,  such presentations,
surrenders,  notices and demands  may be made or served at the  Corporate  Trust
Office of the Trustee,  and the Company hereby appoints the Trustee as its agent
to receive all such presentations, surrenders, notices and demands.

         The  Company  may also from time to time  designate  one or more  other
offices or agencies  where the Securities of one or more series may be presented
or  surrendered  for any or all such  purposes and may from time to time rescind
such  designations;  provided,  however,  that no such designation or rescission
shall in any manner  relieve the Company of its obligation to maintain an office
or agency  in each  Place of  Payment  for  Securities  of any  series  for such
purposes. The Company will give prompt written notice to the Trustee of any such
designation  or  rescission  and of any change in the location of any such other
office or agency.

Section 1003.  Money for Securities Payments to Be Held in Trust.

         If the  Company  shall  at any time act as its own  Paying  Agent  with
respect to any series of Securities,  it will, on or before each due date of the
principal of or any premium or interest on any of the Securities of that series,
segregate  and hold in trust for the benefit of the Persons  entitled  thereto a
sum sufficient to pay the principal and any premium and interest so becoming due
until such sums shall be paid to such Persons or otherwise disposed of as herein
provided  and will  promptly  notify the  Trustee of its action or failure so to
act.

         Whenever  the  Company  shall  have one or more  Paying  Agents for any
series of Securities, it will, prior to each due date of the principal of or any
premium or interest on any  Securities  of that  series,  deposit  with a Paying
Agent a sum  sufficient  to pay such amount,  such sum to be held as provided by
the Trust  Indenture  Act,  and (unless  such Paying  Agent is the  Trustee) the
Company will promptly notify the Trustee of its action or failure so to act.


                                                       
<PAGE>50


         The Company will cause each Paying  Agent for any series of  Securities
other than the Trustee to execute and  deliver to the Trustee an  instrument  in
which such Paying Agent shall agree with the Trustee,  subject to the provisions
of this Section,  that such Paying Agent will (1) comply with the  provisions of
the Trust  Indenture  Act  applicable to it as a Paying Agent and (2) during the
continuance  of any  default  by the  Company  (or any  other  obligor  upon the
Securities  of that  series)  in the  making of any  payment  in  respect of the
Securities of that series,  upon the written  request of the Trustee,  forthwith
pay to the Trustee  all sums held in trust by such  Paying  Agent for payment in
respect of the Securities of that series.

         The  Company  may at  any  time,  for  the  purpose  of  obtaining  the
satisfaction  and discharge of this Indenture or for any other purpose,  pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held in
trust by the Company or such Paying  Agent,  such sums to be held by the Trustee
upon the same  trusts as those upon which such sums were held by the  Company or
such Paying  Agent;  and,  upon such payment by any Paying Agent to the Trustee,
such Paying Agent shall be released from all further  liability  with respect to
such money.

         Any money  deposited with the Trustee or any Paying Agent, or then held
by the Company,  in trust for the payment of the  principal of or any premium or
interest on any  Security of any series and  remaining  unclaimed  for two years
after such  principal,  premium or interest has become due and payable  shall be
paid to the Company on Company  Request,  or (if then held by the Company) shall
be discharged from such trust; and the Holder of such Security shall thereafter,
as an unsecured general creditor,  look only to the Company for payment thereof,
and all liability of the Trustee or such Paying Agent with respect to such trust
money,  and all  liability of the Company as trustee  thereof,  shall  thereupon
cease;  provided,  however,  that the Trustee or such Paying Agent, before being
required to make any such repayment,  may at the expense of the Company cause to
be published once, in a newspaper published in the English language, customarily
published  on each  Business  Day and of general  circulation  in the Borough of
Manhattan,  The City of New York,  notice that such money remains  unclaimed and
that, after a date specified therein,  which shall not be less than 30 days from
the date of such publication, any unclaimed balance of such money then remaining
will be repaid to the Company.

Section 1004.  Statement by Officers as to Default.

         The Company will deliver to the Trustee,  within 120 days after the end
of each fiscal year of the Company  ending after the date  hereof,  an Officers'
Certificate, stating whether or not to the best knowledge of the signers thereof
the Company is in default in the performance and observance of any of the terms,
provisions  and conditions of this  Indenture  (without  regard to any period of
grace or requirement of notice provided  hereunder) and, if the Company shall be
in default,  specifying  all such defaults and the nature and status  thereof of
which they may have knowledge.

Section 1005.  Existence.


                                                       
<PAGE>51

         Subject to Article  Eight,  the Company will do or cause to be done all
things necessary to preserve and keep in full force and effect its existence and
that of each  Principal  Subsidiary  and the rights  (charter and statutory) and
franchises of the Company and each Principal Subsidiary; provided, however, that
the Company shall not be required to preserve any such right or franchise if the
Board of Directors  shall determine that the  preservation  thereof is no longer
desirable  in the  conduct of the  business  of the  Company  and its  Principal
Subsidiaries  and that the loss thereof is not  disadvantageous  in any material
respect to the Holders.

Section 1006.  Maintenance of Properties.

         The Company will cause all properties  used or useful in the conduct of
its business or the business of any Subsidiary to be maintained and kept in good
condition,  repair and working order and supplied  with all necessary  equipment
and  will  cause  to be made  all  necessary  repairs,  renewals,  replacements,
betterments and improvements  thereof, all as in the judgment of the Company may
be necessary  so that the business  carried on in  connection  therewith  may be
properly and  advantageously  conducted at all times;  provided,  however,  that
nothing in this  Section  shall  prevent  the  Company  from  discontinuing  the
operation or maintenance of any of such properties if such discontinuance is, in
the  judgment of the  Company,  desirable  in the conduct of its business or the
business of any Subsidiary and not  disadvantageous  in any material  respect to
the Holders.

Section 1007.  Payment of Taxes and Other Claims.

         The Company will pay or  discharge  or cause to be paid or  discharged,
before  the  same  shall  become  delinquent,  (1) all  taxes,  assessments  and
governmental  charges  levied or imposed upon the Company or any  Subsidiary  or
upon the income,  profits or property of the Company or any Subsidiary,  and (2)
all lawful claims for labor,  materials and supplies which, if unpaid,  might by
law become a lien upon the property of the Company or any Subsidiary;  provided,
however,  that the Company shall not be required to pay or discharge or cause to
be paid or discharged  any such tax,  assessment,  charge or claim whose amount,
applicability  or  validity  is being  contested  in good  faith by  appropriate
proceedings.

Section 1008.  Limitation Upon Disposition of Stock or Assets of a Bank.

         So long as any of the Securities  shall be outstanding,  but subject to
the provisions of Article Eight,  the Company will not sell,  assign,  transfer,
grant a security  interest in or otherwise  dispose of any shares of, securities
convertible  into or options,  warrants or rights to  subscribe  for or purchase
shares  of,  Voting  Stock  (other  than  directors'  qualifying  shares) of any
Principal  Subsidiary Bank, nor will it permit any Principal  Subsidiary Bank to
issue  (except to the Company) any shares of,  securities  convertible  into, or
options,  warrants or rights to  subscribe  for or purchase,  shares of,  Voting
Stock of any Principal Subsidiary Bank except for sales, assignments, transfers,
grants of  security  interests  or other  dispositions  which:  (i) are for fair
market value on the date thereof, as determined by the Board of Directors of the
Company  (which  determination  shall be  conclusive)  and  evidenced  by a duly
adopted  resolution  thereof  (provided,  that  if such  consideration  includes
securities  of any Person,  such Person would not be an Affiliate of the Company


                                                       
<PAGE>52

immediately after the consummation of such transaction), and after giving effect
to such disposition and to any possible dilution (and assuming,  for purposes of
this clause (i), that all such convertible  securities have been fully converted
and all such options, warrants or rights have been fully exercised), the Company
will own at least 80% of the Voting Stock of such Principal Subsidiary Bank then
issued and outstanding free and clear of any security interest; (ii) are made in
compliance  with an  order  of a court  or  regulatory  authority  of  competent
jurisdiction,  a condition imposed by any such court or authority permitting the
acquisition by the Company,  directly or indirectly, of any other bank or entity
the activities of which are legally  permissible for a bank holding company or a
subsidiary  thereof to engage in, or an  undertaking  made to such  authority in
connection  with  such an  acquisition;  (iii)  are made  where  such  Principal
Subsidiary   Bank,   having   obtained  any  necessary   regulatory   approvals,
unconditionally  guarantees payment when due of the principal of and interest on
the Securities;  or (iv) are made to the Company or any Wholly-Owned  Subsidiary
if such Wholly-Owned  Subsidiary by supplemental indenture agrees to be bound by
this  covenant  as if it were  the  Company  and  the  Company  by  supplemental
indenture  agrees to maintain such  Wholly-Owned  Subsidiary  as a  Wholly-Owned
Subsidiary.  Notwithstanding the foregoing, any Principal Subsidiary Bank may be
merged into or consolidated with another banking institution organized under the
laws of the United  States,  any State  thereof or the District of Columbia,  if
after  giving  effect  to  such  merger  or  consolidation  the  Company  or any
Wholly-Owned  Subsidiary  owns at least 80% of the  Voting  Stock of such  other
banking  institution  then issued and outstanding free and clear of any security
interest and if,  immediately  after giving effect thereto and treating any such
resulting banking institution  thereafter as such Principal  Subsidiary Bank and
as a Subsidiary  for  purposes of this  Indenture,  no Event of Default,  and no
event  which,  after  notice or lapse of time or both,  would become an Event of
Default with respect to  Securities  of any series,  shall have  happened and be
continuing.

Section 1009.  Waiver of Certain Covenants.

         Except as  otherwise  specified  as  contemplated  by  Section  301 for
Securities of such series,  the Company may,  with respect to the  Securities of
any series, omit in any particular  instance to comply with any term,  provision
or condition  set forth in any covenant  provided  pursuant to Section  301(18),
901(2) or 901(7)  for the  benefit of the  Holders of such  series or in Section
1008 if  before  the time for such  compliance  the  Holders  of not less than a
majority in principal amount of the Outstanding Securities of such series shall,
by Act of such  Holders,  either  waive  such  compliance  in such  instance  or
generally waive compliance with such term,  provision or condition,  but no such
waiver shall extend to or affect such term, provision or condition except to the
extent so expressly waived,  and, until such waiver shall become effective,  the
obligations  of the Company and the duties of the Trustee in respect of any such
term, provision or condition shall remain in full force and effect.



                                                       
<PAGE>53


                                 ARTICLE ELEVEN
                            Redemption of Securities

Section 1101.  Applicability of Article.

         Securities  of any series  which are  redeemable  before  their  Stated
Maturity  shall be  redeemable  in  accordance  with their  terms and (except as
otherwise  specified  as  contemplated  by Section 301 for such  Securities)  in
accordance with this Article.

Section 1102.  Election to Redeem; Notice to Trustee.

         The election of the Company to redeem any Securities shall be evidenced
by a Board  Resolution or in another manner specified as contemplated by Section
301 for  such  Securities.  In case of any  redemption  at the  election  of the
Company  of less  than all the  Securities  of any  series  (including  any such
redemption  affecting only a single  Security),  the Company shall,  at least 60
days prior to the Redemption  Date fixed by the Company (unless a shorter notice
shall be  satisfactory  to the Trustee),  notify the Trustee of such  Redemption
Date, of the  principal  amount of Securities of such series to be redeemed and,
if applicable, of the tenor of the Securities to be redeemed. In the case of any
redemption of Securities  prior to the  expiration  of any  restriction  on such
redemption  provided  in the  terms  of such  Securities  or  elsewhere  in this
Indenture,  the Company shall furnish the Trustee with an Officers'  Certificate
evidencing compliance with such restriction.

Section 1103.  Selection by Trustee of Securities to Be Redeemed.

         If less  than  all the  Securities  of any  series  are to be  redeemed
(unless all the  Securities  of such  series and of a specified  tenor are to be
redeemed  or  unless  such  redemption  affects  only a  single  Security),  the
particular  Securities  to be redeemed  shall be selected  not more than 60 days
prior to the Redemption Date by the Trustee, from the Outstanding  Securities of
such series not previously called for redemption,  by such method as the Trustee
shall deem fair and  appropriate  and which may  provide for the  selection  for
redemption of a portion of the principal  amount of any Security of such series,
provided that the  unredeemed  portion of the  principal  amount of any Security
shall be in an authorized denomination (which shall not be less than the minimum
authorized  denomination) for such Security.  If less than all the Securities of
such series and of a specified tenor are to be redeemed  (unless such redemption
affects only a single Security),  the particular Securities to be redeemed shall
be selected not more than 60 days prior to the  Redemption  Date by the Trustee,
from  the  Outstanding  Securities  of  such  series  and  specified  tenor  not
previously called for redemption in accordance with the preceding sentence.

         The  Trustee  shall  promptly  notify  the  Company  in  writing of the
Securities  selected for  redemption as aforesaid and, in case of any Securities
selected for partial redemption as aforesaid, the principal amount thereof to be
redeemed.


                                                       
<PAGE>54


         The  provisions  of the two preceding  paragraphs  shall not apply with
respect  to any  redemption  affecting  only a  single  Security,  whether  such
Security  is to be  redeemed  in  whole  or in  part.  In the  case of any  such
redemption  in part,  the  unredeemed  portion  of the  principal  amount of the
Security  shall be in an authorized  denomination  (which shall not be less than
the minimum authorized denomination) for such Security.

         For all  purposes  of this  Indenture,  unless  the  context  otherwise
requires,  all provisions relating to the redemption of Securities shall relate,
in the case of any  Securities  redeemed or to be redeemed  only in part, to the
portion of the principal  amount of such  Securities  which has been or is to be
redeemed.

Section 1104.  Notice of Redemption.

         Notice  of  redemption  shall  be given by  first-class  mail,  postage
prepaid,  mailed not less than 30 nor more than 60 days prior to the  Redemption
Date, to each Holder of Securities to be redeemed,  at his address  appearing in
the Security Register.
         All notices of redemption shall state:

         (1)      the Redemption Date,

         (2)      the Redemption Price,

         (3)  if  less  than  all  the  Outstanding  Securities  of  any  series
consisting of more than a single Security are to be redeemed, the identification
(and, in the case of partial  redemption of any such  Securities,  the principal
amounts) of the  particular  Securities to be redeemed and, if less than all the
Outstanding  Securities of any series  consisting of a single Security are to be
redeemed, the principal amount of the particular Security to be redeemed,

         (4) that on the Redemption  Date the  Redemption  Price will become due
and payable  upon each such  Security to be redeemed  and, if  applicable,  that
interest thereon will cease to accrue on and after said date,

         (5) the place or places where each such  Security is to be  surrendered
for payment of the Redemption Price, and

         (6) that the redemption is for a sinking fund, if such is the case.

         Notice of  redemption  of  Securities to be redeemed at the election of
the Company shall be given by the Company or, at the Company's  request,  by the
Trustee in the name and at the expense of the Company and shall be irrevocable.

Section 1105.  Deposit of Redemption Price.

         Prior to any  Redemption  Date,  the  Company  shall  deposit  with the
Trustee or with a Paying  Agent (or,  if the Company is acting as its own Paying
Agent,  segregate  and hold in trust as provided  in Section  1003) an amount of
money  sufficient to pay the Redemption  Price of, and (except if the Redemption
Date shall be an Interest  Payment Date) accrued interest on, all the Securities
which are to be redeemed on that date.

                                                       
<PAGE>55


Section 1106.  Securities Payable on Redemption Date.

         Notice of redemption having been given as aforesaid,  the Securities so
to be redeemed  shall,  on the  Redemption  Date,  become due and payable at the
Redemption  Price  therein  specified,  and from and after such date (unless the
Company  shall  default  in the  payment  of the  Redemption  Price and  accrued
interest) such  Securities  shall cease to bear interest.  Upon surrender of any
such Security for redemption in accordance with said notice, such Security shall
be paid by the Company at the Redemption  Price,  together with accrued interest
to the Redemption Date; provided,  however,  that, unless otherwise specified as
contemplated  by Section 301,  installments of interest whose Stated Maturity is
on or prior to the  Redemption  Date  will be  payable  to the  Holders  of such
Securities,  or one or more  Predecessor  Securities,  registered as such at the
close of business on the relevant  Record Dates according to their terms and the
provisions of Section 307.

         If any  Security  called  for  redemption  shall  not be so  paid  upon
surrender  thereof for  redemption,  the principal and any premium shall,  until
paid, bear interest from the Redemption Date at the rate prescribed  therefor in
the Security.

Section 1107.  Securities Redeemed in Part.

         Any Security  which is to be redeemed only in part shall be surrendered
at a Place of Payment therefor (with, if the Company or the Trustee so requires,
due endorsement by, or a written  instrument of transfer in form satisfactory to
the Company and the Trustee duly executed by, the Holder thereof or his attorney
duly  authorized  in writing),  and the Company shall  execute,  and the Trustee
shall  authenticate  and deliver to the Holder of such Security  without service
charge,  a new Security or Securities  of the same series and of like tenor,  of
any authorized  denomination as requested by such Holder, in aggregate principal
amount equal to and in exchange for the  unredeemed  portion of the principal of
the Security so surrendered.


                                 ARTICLE TWELVE
                                  Sinking Funds

Section 1201.  Applicability of Article.

         The  provisions of this Article shall be applicable to any sinking fund
for the retirement of Securities of any series except as otherwise  specified as
contemplated by Section 301 for such Securities.

         The minimum  amount of any sinking  fund  payment  provided  for by the
terms of any  Securities  is herein  referred to as a  "mandatory  sinking  fund
payment",  and any payment in excess of such minimum amount  provided for by the
terms of such  Securities  is herein  referred to as an  "optional  sinking fund
payment". If provided for by the terms of any Securities, the cash amount of any
sinking fund  payment may be subject to  reduction as provided in Section  1202.
Each sinking fund payment  shall be applied to the  redemption  of Securities as
provided for by the terms of such Securities.

                                                       
<PAGE>56


Section 1202.  Satisfaction of Sinking Fund Payments with Securities.

         The Company (1) may deliver  Outstanding  Securities of a series (other
than  any  previously  called  for  redemption)  and (2) may  apply  as a credit
Securities  of a series which have been  redeemed  either at the election of the
Company  pursuant to the terms of such  Securities or through the application of
permitted  optional  sinking  fund  payments  pursuant  to  the  terms  of  such
Securities,  in each case in satisfaction of all or any part of any sinking fund
payment  with  respect to any  Securities  of such  series  required  to be made
pursuant to the terms of such  Securities  as and to the extent  provided for by
the terms of such  Securities;  provided  that the  Securities to be so credited
have not been previously so credited.  The Securities to be so credited shall be
received and credited for such purpose by the Trustee at the  Redemption  Price,
as  specified  in the  Securities  so to be  redeemed,  for  redemption  through
operation of the sinking fund and the amount of such sinking fund payment  shall
be reduced accordingly.

Section 1203.  Redemption of Securities for Sinking Fund.

     Not less than ........ days prior to each sinking fund payment date for any
Securities,  the Company will  deliver to the Trustee an  Officers'  Certificate
specifying  the  amount  of the  next  ensuing  sinking  fund  payment  for such
Securities  pursuant to the terms of such Securities,  the portion  thereof,  if
any,  which is to be  satisfied by payment of cash and the portion  thereof,  if
any, which is to be satisfied by delivering and crediting Securities pursuant to
Section  1202 and will also  deliver  to the  Trustee  any  Securities  to be so
delivered.  Not less than ......... days prior to each such sinking fund payment
date,  the Trustee shall select the  Securities to be redeemed upon such sinking
fund  payment  date in the manner  specified in Section 1103 and cause notice of
the  redemption  thereof  to be given in the name of and at the  expense  of the
Company in the manner  provided in Section  1104.  Such notice  having been duly
given, the redemption of such Securities shall be made upon the terms and in the
manner stated in Sections 1106 and 1107.

                                ARTICLE THIRTEEN
                       Defeasance and Covenant Defeasance

Section 1301.  Company's Option to Effect Defeasance or Covenant Defeasance.

         The Company may elect,  at its option at any time, to have Section 1302
or Section 1303 applied to any  Securities or any series of  Securities,  as the
case may be, designated  pursuant to Section 301 as being defeasible pursuant to
such  Section  1302 or 1303,  in  accordance  with any  applicable  requirements
provided  pursuant to Section 301 and upon  compliance  with the  conditions set
forth below in this  Article.  Any such  election  shall be evidenced by a Board
Resolution or in another  manner  specified as  contemplated  by Section 301 for
such Securities.

Section 1302.  Defeasance and Discharge.


                                                       
<PAGE>57


         Upon the Company's exercise of its option (if any) to have this Section
applied to any Securities or any series of  Securities,  as the case may be, the
Company  shall be deemed  to have  been  discharged  from its  obligations  with
respect to such Securities as provided in this Section on and after the date the
conditions  set  forth  in  Section  1304  are  satisfied   (hereinafter  called
"Defeasance"). For this purpose, such Defeasance means that the Company shall be
deemed to have paid and discharged the entire  indebtedness  represented by such
Securities and to have satisfied all its other obligations under such Securities
and this Indenture insofar as such Securities are concerned (and the Trustee, at
the expense of the Company,  shall execute proper instruments  acknowledging the
same),  subject to the following which shall survive until otherwise  terminated
or  discharged  hereunder:  (1) the  rights of  Holders  of such  Securities  to
receive,  solely from the trust fund described in Section 1304 and as more fully
set forth in such  Section,  payments  in  respect of the  principal  of and any
premium and interest on such Securities when payments are due, (2) the Company's
obligations  with respect to such Securities  under Sections 304, 305, 306, 1002
and 1003, (3) the rights,  powers,  trusts, duties and immunities of the Trustee
hereunder and (4) this Article.  Subject to  compliance  with this Article,  the
Company may  exercise  its option (if any) to have this  Section  applied to any
Securities  notwithstanding  the prior  exercise  of its option (if any) to have
Section 1303 applied to such Securities.

Section 1303.  Covenant Defeasance.

         Upon the Company's exercise of its option (if any) to have this Section
applied to any Securities or any series of  Securities,  as the case may be, (1)
the  Company  shall be  released  from its  obligations  under  Section  801(3),
Sections 1006 through 1009,  inclusive,  and any covenants  provided pursuant to
Section  301(18),  901(2) or  901(7)  for the  benefit  of the  Holders  of such
Securities  and (2) the  occurrence  of any event  specified in Sections  501(4)
(with respect to any of Section 801(3),  Sections 1006 through 1009,  inclusive,
and any such covenants provided pursuant to Section 301(18),  901(2) or 901(7)),
501(5) and 501(8) shall be deemed not to be or result in an Event of Default, in
each case with  respect to such  Securities  as provided in this  Section on and
after  the  date  the  conditions  set  forth  in  Section  1304  are  satisfied
(hereinafter  called  "Covenant  Defeasance").  For this purpose,  such Covenant
Defeasance means that, with respect to such Securities,  the Company may omit to
comply with and shall have no  liability  in respect of any term,  condition  or
limitation set forth in any such  specified  Section (to the extent so specified
in the case of Section 501(4)),  whether directly or indirectly by reason of any
reference  elsewhere herein to any such Section or by reason of any reference in
any such Section to any other provision herein or in any other document, but the
remainder of this Indenture and such Securities shall be unaffected thereby.

Section 1304.  Conditions to Defeasance or Covenant Defeasance.

         The following  shall be the  conditions to the  application  of Section
1302 or Section 1303 to any Securities or any series of Securities,  as the case
may be:


                                                       
<PAGE>58


         (1) The  Company  shall  irrevocably  have  deposited  or  caused to be
deposited with the Trustee (or another trustee which satisfies the  requirements
contemplated  by Section  609 and agrees to comply with the  provisions  of this
Article  applicable to it) as trust funds in trust for the purpose of making the
following payments,  specifically  pledged as security for, and dedicated solely
to,  the  benefits  of the  Holders  of  such  Securities,  (A) in the  case  of
Securities denominated in a foreign currency,  money in such foreign currency or
Foreign Government  Obligations of the foreign government or governments issuing
such foreign  currency  which  through the  scheduled  payment of principal  and
interest in respect  thereof in accordance  with their terms will  provide,  not
later than one day before the due date of any payment,  such foreign currency in
an amount, or (B) in the case of Securities  denominated in U.S.  dollars,  U.S.
dollars or U.S.  Government  Obligations  which through the scheduled payment of
principal and interest in respect  thereof in  accordance  with their terms will
provide, not later than one day before the due date of any payment, U.S. dollars
in an amount, or (C) a combination of money and Foreign  Government  Obligations
or U.S. Government Obligations (as applicable),  in each case sufficient, in the
opinion  of a  nationally  recognized  firm of  independent  public  accountants
expressed in a written  certification  thereof delivered to the Trustee,  to pay
and  discharge,  and which  shall be applied by the  Trustee  (or any such other
qualifying  trustee) to pay and discharge,  the principal of and any premium and
interest on such Securities on the respective Stated  Maturities,  in accordance
with the terms of this  Indenture  and such  Securities.  As used herein,  "U.S.
Government  Obligation"  means (x) any security which is (i) a direct obligation
of the  United  States of  America  for the  payment of which the full faith and
credit of the United  States of America  is pledged or (ii) an  obligation  of a
Person controlled or supervised by and acting as an agency or instrumentality of
the United States of America the payment of which is unconditionally  guaranteed
as a full faith and credit obligation by the United States of America, which, in
either  case (i) or (ii),  is not  callable or  redeemable  at the option of the
issuer thereof,  and (y) any depositary  receipt issued by a bank (as defined in
Section  3(a)(2) of the  Securities  Act) as custodian  with respect to any U.S.
Government  Obligation  which is  specified in Clause (x) above and held by such
bank for the account of the holder of such depositary  receipt,  or with respect
to any  specific  payment of  principal  of or interest  on any U.S.  Government
Obligation which is so specified and held,  provided that (except as required by
law) such  custodian is not  authorized  to make any  deduction  from the amount
payable to the holder of such depositary receipt from any amount received by the
custodian in respect of the U.S.  Government  Obligation or the specific payment
of principal or interest evidenced by such depositary  receipt.  As used herein,
"Foreign  Government  Obligation"  means any security  denominated  in a foreign
currency which is (i) a direct obligation of a foreign government or governments
for the payment of which the full faith and credit of such foreign government or
governments  is  pledged  or  (ii)  an  obligation  of a  Person  controlled  or
supervised  by and  acting  as an  agency  or  instrumentality  of such  foreign
government or governments the payment of which is unconditionally  guaranteed as
a full faith and credit obligation by such foreign government,  which, in either
case (i) or (ii) is not  callable  or  redeemable  at the  option of the  issuer
thereof.

         (2) In the  event of an  election  to have  Section  1302  apply to any
Securities  or any series of  Securities,  as the case may be, the Company shall
have  delivered  to the  Trustee an Opinion of Counsel  stating  that (A)(x) the
Company has received from, or there has been published by, the Internal  Revenue
Service  a ruling or (y)  since  the date of this  instrument,  there has been a
change in the  applicable  Federal  income tax law, in either case (x) or (y) to
the effect that,  and based thereon such opinion shall confirm that, the Holders
of such  Securities  will not  recognize  gain or loss for  Federal  income  tax
purposes as a result of the  deposit,  Defeasance  and  discharge to be effected
with respect to such Securities and will be subject to Federal income tax on the
same  amount,  in the same  manner and at the same times as would be the case if
such deposit,  Defeasance  and discharge were not to occur and (B) if Securities
of such series Securities are then listed on the New York Stock Exchange, to the
effect  that the  Securities  of such series will not be delisted as a result of
such election.


                                                       
<PAGE>59

         (3) In the  event of an  election  to have  Section  1303  apply to any
Securities  or any series of  Securities,  as the case may be, the Company shall
have  delivered  to the  Trustee an  Opinion  of Counsel to the effect  that the
Holders of such  Securities  will not recognize  gain or loss for Federal income
tax purposes as a result of the deposit and Covenant  Defeasance  to be effected
with respect to such Securities and will be subject to Federal income tax on the
same  amount,  in the same  manner and at the same times as would be the case if
such deposit and Covenant Defeasance were not to occur.

         (4) The  Company  shall have  delivered  to the  Trustee  an  Officer's
Certificate to the effect that neither such Securities nor any other  Securities
of the same series, if then listed on any securities exchange,  will be delisted
as a result of such deposit.

         (5) No event  which is, or after  notice or lapse of time or both would
become,  an Event of  Default  with  respect  to such  Securities  or any  other
Securities shall have occurred and be continuing at the time of such deposit or,
with regard to any such event  specified in Sections 501(6) and (7), at any time
on or prior to the 90th day after the date of such deposit (it being  understood
that this condition shall not be deemed satisfied until after such 90th day).

         (6) Such Defeasance or Covenant  Defeasance shall not cause the Trustee
to have a  conflicting  interest  within the meaning of the Trust  Indenture Act
(assuming all Securities are in default within the meaning of such Act).

         (7) Such Defeasance or Covenant Defeasance shall not result in a breach
or  violation  of,  or  constitute  a default  under,  any  other  agreement  or
instrument to which the Company is a party or by which it is bound.

         (8) Such  Defeasance  or  Covenant  Defeasance  shall not result in the
trust arising from such deposit  constituting  an investment  company within the
meaning of the  Investment  Company Act unless  such trust  shall be  registered
under such Act or exempt from registration thereunder.

         (9) The  Company  shall have  delivered  to the  Trustee  an  Officer's
Certificate  and an  Opinion  of  Counsel,  each  stating  that  all  conditions
precedent  with  respect to such  Defeasance  or Covenant  Defeasance  have been
complied with. Section 1305.  Deposited Money, U.S.  Government  Obligations and
Foreign Government Obligations to Be Held in Trust; Miscellaneous Provisions.

                                                       
<PAGE>60


         Subject to the  provisions of the last  paragraph of Section 1003,  all
money, U.S. Government Obligations and Foreign Government Obligations (including
the proceeds  thereof)  deposited with the Trustee or other  qualifying  trustee
(solely for purposes of this Section and Section 1306,  the Trustee and any such
other trustee are referred to collectively as the "Trustee") pursuant to Section
1304 in  respect  of any  Securities  shall be held in trust and  applied by the
Trustee,  in  accordance  with  the  provisions  of  such  Securities  and  this
Indenture,  to the  payment,  either  directly or through any such Paying  Agent
(including  the  Company  acting as its own  Paying  Agent) as the  Trustee  may
determine, to the Holders of such Securities,  of all sums due and to become due
thereon in respect of principal and any premium and interest,  but money so held
in trust need not be segregated  from other funds except to the extent  required
by law.

         The Company shall pay and indemnify the Trustee against any tax, fee or
other charge imposed on or assessed against the U.S.  Government  Obligations or
Foreign  Government  Obligations  deposited  pursuant  to  Section  1304  or the
principal and interest  received in respect thereof other than any such tax, fee
or other  charge  which by law is for the account of the Holders of  Outstanding
Securities.

         Anything in this Article to the contrary  notwithstanding,  the Trustee
shall  deliver or pay to the Company from time to time upon Company  Request any
money or U.S. Government  Obligations or Foreign Government  Obligations held by
it as provided in Section  1304 with  respect to any  Securities  which,  in the
opinion  of a  nationally  recognized  firm of  independent  public  accountants
expressed in a written  certification  thereof delivered to the Trustee,  are in
excess of the amount  thereof  which would then be required to be  deposited  to
effect the Defeasance or Covenant  Defeasance,  as the case may be, with respect
to such Securities.

Section 1306.  Reinstatement.

         If the  Trustee  or the  Paying  Agent is  unable to apply any money in
accordance  with this Article with  respect to any  Securities  by reason of any
order or judgment of any court or governmental authority enjoining,  restraining
or otherwise  prohibiting  such  application,  then the  obligations  under this
Indenture  and such  Securities  from which the Company has been  discharged  or
released  pursuant to Section  1302 or 1303 shall be revived and  reinstated  as
though no deposit had  occurred  pursuant to this  Article  with respect to such
Securities, until such time as the Trustee or Paying Agent is permitted to apply
all money held in trust pursuant to Section 1305 with respect to such Securities
in accordance with this Article;  provided,  however,  that if the Company makes
any payment of  principal  of or any  premium or  interest on any such  Security
following such reinstatement of its obligations, the Company shall be subrogated
to the rights (if any) of the Holders of such Securities to receive such payment
from the money so held in trust.

         This instrument may be executed in any number of counterparts,  each of
which so executed shall be deemed to be an original,  but all such  counterparts
shall together constitute but one and the same instrument.

         In Witness Whereof, the parties hereto have caused this Indenture to be
duly executed,  and their respective  corporate seals to be hereunto affixed and
attested, all as of the day and year first above written.


[SEAL]                              BOK FINANCIAL CORPORATION

                                                       
<PAGE>61


                                   By  _________________________________________


Attest:


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

                                                       
62


                                   Exhibit 5.0

                      Opinion of Frederic Dorwart, Lawyers

                                                       
<PAGE>63



                                 October 5, 1998
BOK Financial Corporation
One Williams Center
Tulsa, Oklahoma 74172

Ladies and Gentlemen:

         In connection  with the  registration  under the Securities Act of 1933
(the "Act") of  $250,000,000  aggregate  amount of senior debt  securities  (the
"Senior Debt Securities") of BOK Financial Corporation,  an Oklahoma corporation
(the  "Company"),  we, as your counsel,  have examined such  corporate  records,
certificates  and  other  documents,  and  such  questions  of  law,  as we have
considered necessary or appropriate for the purposes of this opinion.

         Upon the basis of such examination,  we advise you that, in our opinion
when the registration  statement  relating to the Securities (the  "Registration
Statement") has become  effective  under the Act, the indenture  relating to the
Senior Debt Securities (the  "Indenture")  has been duly executed and delivered,
the terms of the Senior Debt Securities and of their issuance and sale have been
duly  established  in  conformity  with the  Indenture  so as not to violate any
applicable  law or  result in a default  under or  breach  of any  agreement  or
instrument  binding upon the Company and so as to comply with any requirement or
restriction  imposed by any court or governmental body having  jurisdiction over
the  Company,  and the  Senior  Debt  Securities  have  been duly  executed  and
authenticated   in  accordance  with  the  Indenture  and  issued  and  sold  as
contemplated  in the  Registration  Statement,  the Senior Debt  Securities will
constitute  valid and legally  binding  obligations  of the Company,  subject to
bankruptcy,  insolvency,  fraudulent  transfer,  reorganization,  moratorium and
similar laws of general applicability relating to or affecting creditors' rights
and to general equity principles.

         The  foregoing  opinion is limited  to the  Federal  laws of the United
States, and the laws of the State Oklahoma,  and we are expressing no opinion as
to the effect of the laws of any other jurisdiction.

         We have  relied as to certain  matters  on  information  obtained  from
public officials, officers of the Company and other sources believed by us to be
responsible.

         We hereby  consent to the  filing of this  opinion as an exhibit to the
Registration Statement and to the reference to us under the heading "Validity of
the Senior Debt Securities" in the Prospectus. In giving such consent, we do not
thereby  admit that we are in the category of persons  whose consent is required
under Section 7 of the Act.

                                   Sincerely,


FD/vv                             /s/Frederic Dorwart


                                                       
64


                                  Exhibit 23.0

                          Consent of Ernst & Young LLP

                                                       
<PAGE>65







The Board of Directors
BOK Financial Corporation:

         We consent to the reference of our firm under the caption  "Experts" in
the  Registration  Statement (Form S-3) and related  Prospectus of BOK Financial
Corporation  for the  registration of $250,000,000 of Senior Debt Securities and
to the  incorporation by reference  therein of our report dated January 27, 1998
with respect to the consolidated financial of BOK Financial Corporation included
in its Annual Report (Form 10-K) for the year ended December 31, 1997 filed with
the Securities and Exchange Commission.

                                            /s/ ERNST & YOUNG LLP

Tulsa Oklahoma
October 9, 1998


                                                       



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