SECURITIES AND EXCHANGE COMMISSION

                            Washington, D.C. 20549

                                   FORM 8-K

                                CURRENT REPORT



                      Pursuant to Section 13 or 15(d) of
                     the Securities Exchange Act of 1934


      Date of Report (Date of earliest event reported): October 28, 1997



                        FIRST EMPIRE STATE CORPORATION

            (Exact name of registrant as specified in its charter)



                                   NEW YORK

                (State or other jurisdiction of incorporation)


              1-9861                                 16-0968385

     (Commission File Number)                     (I.R.S. Employer
                                                 Identification No.)


               One M&T Plaza, Buffalo, New York           14240
           (Address of principal executive offices)     (Zip Code)


      Registrant's telephone number, including area code: (716) 842-5445


                               (NOT APPLICABLE)

        (Former name or former address, if changed since last report)




    ITEM 5. OTHER EVENTS.
 
    On October 28, 1997, First Empire State Corporation ("First Empire")
announced that it had entered into a definitive agreement with ONBANCorp, Inc.
("OBC"), Syracuse, New York, pursuant to which OBC, a bank holding company, will
be acquired by First Empire upon the satisfaction of a number of conditions.
Upon consummation of the transaction, OnBank & Trust Co., OBC's commercial bank
subsidiary, and Franklin First Savings Bank, OBC's savings bank subsidiary, will
be merged into Manufacturers and Traders Trust Company ("M&T Bank"), First
Empire's commercial bank subsidiary.
 
    OnBank & Trust Co. operates 58 banking offices in the Syracuse, Rochester
and Albany areas of New York State. Franklin First Savings Bank operates 19
banking offices in Northeastern Pennsylvania. At September 30, 1997, OBC
reported approximately $5.5 billion in assets. OBC's common stock is registered
pursuant to Section 12(g) of the Securities Exchange Act of 1934, as amended
(File No. 0-18011). Additional information concerning OBC is on file with the
Securities and Exchange Commission.
 
    Each share of OBC Common Stock outstanding at the time the acquisition is 
consummated will be converted into either 0.161 shares of common stock of 
First Empire (and cash in lieu of fractional shares) or the right to receive 
$69.50 in cash as provided in the Agreement and Plan of Merger (the "Merger 
Agreement") set forth as Annex A to the Agreement and Plan of Reorganization 
(the "Reorganization Agreement"), dated as of October 28, 1997, by and among 
First Empire, OBC and Olympia Financial Corp. ("Olympia"). A copy of the 
Reorganization Agreement is filed as Exhibit 2 hereto and is incorporated 
herein by reference. Under the Merger Agreement, the total number of shares 
of OBC Common stock to be converted into shares of common stock of First 
Empire in the acquisition shall not be less than 7,627,083 shares or more 
than 8,898,264 shares. The right to receive shares of common stock of First 
Empire is subject to the allocation and election procedures set forth in the 
Merger Agreement. As of October 28, 1997, there were 12,712,981 shares of OBC 
Common Stock issued and outstanding.
 
    Consummation of the transaction is subject to a number of conditions,
including regulatory approvals and the approval of First Empire's and OBC's
respective stockholders. Subject to the satisfaction of all conditions, it is
anticipated that the transaction will be completed in early 1998.
 
    Following the consummation of the transaction, Mr. Robert Bennett, chairman
and chief executive officer of OBC will be elected chairman of the board of
directors of First Empire and vice chairman of M&T Bank. Four other directors of
OBC will join Mr. Bennett on First Empire's and M&T Bank's board of directors.
 

                                     -1-



    Mr. Robert G. Wilmers will continue as president and chief executive officer
of First Empire and chairman of M&T Bank.
 
    Contemporaneous with the execution and delivery of the definitive agreement
described above, OBC granted First Empire a stock option (the "Stock Option") to
acquire up to 19.9% of the outstanding shares of common stock of OBC under
certain conditions. A copy of the Stock Option Agreement, dated as of October
28, 1997, by and among First Empire, OBC and Olympia granting the Stock Option
is filed as Exhibit 99.1 hereto and is incorporated herein by reference.
 
    The press release issued by First Empire and OBC with respect to the
announcement of the transaction described herein is filed as Exhibit 99.2 hereto
and incorporated herein by reference. Also filed as Exhibit 99.3 hereto and
incorporated herein by reference are excerpts from a presentation given by 
First Empire to investment analysts on October 29, 1997.
 
    The press release and the portions of the analysts presentation incorporated
herein by reference contain forward-looking statements with respect to the
financial condition, results of operations and business of First Empire and,
assuming the consummation of the acquisition, a combined First Empire/OBC
including statements relating to: (a) the cost savings and accretion to reported
earnings that will be realized from the acquisition; (b) the impact of the
acquisition on revenues; and (c) the restructuring charges expected to be
incurred in connection with the acquisition. With respect to the portions of the
analysts presentation, it should be noted that among other things: (a) the pro
forma information set forth therein is based on the full-year 1998, even though
First Empire and OBC will be operating on a combined basis for less than the
full 12 months; (b) information set forth in the presentation reflects the
median of estimates made by third-party analysts and not the internal
assumptions of First Empire; and (c) the information set forth in the
presentation reflects certain assumptions as to capital generating activities
and asset restructuring. The forward- looking statements in the press release
and the analysts presentation involve certain risks and uncertainties. Factors
that may cause actual results to differ materially from those contemplated by
such forward-looking statements include, among others, the following
possibilities: (1) expected cost savings from the acquisition cannot be fully
realized or realized within the expected time frame; (2) revenues following the
acquisition are lower than expected; (3) competitive pressure among depository
institutions increases significantly; (4) costs or difficulties related to the
integration of the business of First Empire and OBC are greater than expected;
(5) changes in the interest rate environment reduce interest margins; (6)
general economic 


                                     -2-



conditions, either nationally or in the states in which the combined company 
will be doing business, are less favorable than expected; (7) legislation or 
regulatory requirements or changes adversely affect the business in which the 
combined company would be engaged; or (8) other "Future Factors" enumerated 
in First Empire's Annual Report on Form 10-K for the year ended December 31, 
1996 and incorporated herein by reference. First Empire assumes no 
responsibility to update these statements after the date hereof.
 
    The foregoing descriptions of and references to all of the above-mentioned
agreements and documents are qualified in their entirety by reference to the
complete texts of the agreements and documents that are filed herewith and
incorporated herein by reference.
 
    ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS
 
    The following exhibits are filed herewith or incorporated herein by
reference:
 
EXHIBIT NO.
- -----------
        2      Agreement and Plan of Reorganization dated as of 
               October 28, 1997, by and among First Empire State Corporation, 
               Olympia Financial Corp. and ONBANCorp, Inc.

       99.1    Stock Option Agreement dated as of October 28, 1997 by and 
               between First Empire State Corporation and ONBANCorp, Inc.

       99.2    Joint Press Release, dated October 28, 1997

       99.3    Excerpts from Analysts Presentation


                                  SIGNATURES
 
    Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.
 
                                            FIRST EMPIRE STATE CORPORATION


                                     -3-



                                            By: /s/Michael P. Pinto
                                                -----------------------------
Date: November __, 1997                         Michael P. Pinto
                                                Executive Vice President and 
                                                Chief Financial Officer



                                     -4-



                                CURRENT REPORT

                      Pursuant to Section 13 or 15(d) of
                      the Securities Exchange Act of 1934



    Report Dated: October 28, 1997           Commission File Number: 1-9861



                        FIRST EMPIRE STATE CORPORATION
            (Exact name of registrant as specified in its charter)



                                   EXHIBITS


                                     -5-



                                 EXHIBIT INDEX
 
EXHIBIT NO.
- -----------

        2      Agreement and Plan of Reorganization dated as of 
               October 28, 1997, by and among First Empire State 
               Corporation, Olympia Financial Corp. and ONBANCorp, Inc.

       99.1    Stock Option Agreement dated as of October 28, 1997 by and 
               between First Empire State Corporation and ONBANCorp, Inc.

       99.2    Joint Press Release, dated October 28, 1997

       99.3    Excerpts from Analysts Presentation


                                     -6-



                                                                    Exhibit 2

                         AGREEMENT AND PLAN OF REORGANIZATION
                                            
          AGREEMENT AND PLAN OF REORGANIZATION ("Reorganization Agreement" or 
"Agreement") dated as of October 28, 1997, by and among ONBANCORP, INC. 
("OBC"), a Delaware corporation having its principal executive office at 101 
South Salina Street, Syracuse, New York  13202, FIRST EMPIRE STATE 
CORPORATION ("FESC"), a New York corporation having its principal executive 
office at One M&T Plaza, Buffalo, New York  14240, and OLYMPIA FINANCIAL 
CORP. ("Merger Sub"), a newly incorporated Delaware corporation having its 
registered office at 1209 Orange Street, Wilmington, Delaware.                
                            
                                      WITNESSETH

          WHEREAS, the parties hereto desire that OBC shall be acquired by 
FESC through the merger ("Merger") of OBC with and into Merger Sub, with 
Merger Sub as the surviving corporation ("Surviving Corporation") pursuant to 
an Agreement and Plan of Merger substantially in the form attached hereto as 
Annex A, to include the pricing terms set forth in Annex B hereto together 
with the associated terms and procedures ("Plan of Merger"), which Plan of 
Merger shall be entered into by the parties hereto as promptly as practicable 
after the date hereof; and

          WHEREAS, also following the consummation of the Merger, OnBank & 
Trust Co. ("OnBank"), a New York-chartered commercial bank subsidiary of OBC, 
Franklin First Savings Bank ("Franklin First" and, together with OnBank, 
the "OBC Banks"), a Pennsylvania-chartered savings bank subsidiary of OBC, 
and  Manufacturers and Traders Trust Company ("M&T Bank"), a New 
York-chartered commercial bank subsidiary of FESC ("Bank Merger"), shall 
merge pursuant to an Agreement and Plan of Merger ("Bank Merger Agreement") 
in a form to be specified by FESC and reasonably acceptable to OBC; and     

          WHEREAS, the parties hereto intend that the Merger shall qualify as 
or be part of a tax-free reorganization under Section 368(a) of the Code (as 
defined hereinafter); and     

          WHEREAS, the parties hereto desire to provide for certain 
undertakings, conditions, representations, warranties and covenants in 
connection with the transactions contemplated hereby;     

          NOW, THEREFORE, in consideration of the premises and of the mutual 
representations, warranties and covenants herein contained and intending to 
be legally bound hereby, the parties hereto do hereby agree as follows:       

                                      ARTICLE
                                     DEFINITIONS

           1.1       "Bank Holding Company Act" shall mean the Bank Holding
Company Act of 1956, as amended.



 
           1.2       "Banking Board" shall mean the New York State Banking 
Board.

           1.3       "Closing Date" shall mean the date specified pursuant to
Section 4.8 hereof as the date on which the parties hereto shall close the
transactions contemplated herein.

           1.4       "Code" shall mean the Internal Revenue Code of 1986, as 
amended.

           1.5       "Commission" or "SEC" shall mean the Securities and 
Exchange Commission.

           1.6       "Department of Banking" shall mean the Pennsylvania 
Department of Banking.

           1.7       "Effective Date" shall mean the date and time specified 
pursuant to Section 4.9 hereof as the effective date of the Merger.

           1.8       "ERISA" shall mean the Employee Retirement Income Security 
Act of 1974, as amended.

           1.9       "Exchange Act" shall mean the Securities Exchange Act of 
1934, as amended.

           1.10      "FDIA" shall mean the Federal Deposit Insurance Act.

           1.11      "FDIC" shall mean the Federal Deposit Insurance 
Corporation.

           1.12      "Federal Reserve Board" shall mean the Board of Governors
of the Federal Reserve System.

           1.13      "FESC Financial Statements" shall mean (i) the consolidated
balance sheets of FESC as of June 30, 1997 and as of December 31, 1996 and 
1995 and the related consolidated statements of income, cash flows and 
changes in shareholders' equity (including related notes, if any) for the six 
months ended June 30, 1997 and each of the years ended December 31, 1996, 
1995 and 1994, respectively, as filed by FESC in SEC Documents and (ii) the 
consolidated balance sheets of FESC and related consolidated statements of 
income, cash flows and changes in shareholders' equity (including related 
notes, if any) as filed by FESC in SEC Documents as of dates or with respect 
to periods ended subsequent to June 30, 1997. 

            1.14     "Intellectual Property" means domestic and foreign letters
patent, patents, patent applications, patent licenses, software licensed or
owned, know-how licenses, trade names, common law and other trademarks, service 
marks, licenses of trademarks, trade names and/or service marks, trademark 
registrations and applications, service mark registrations and applications and 
copyright registrations and applications.  

                                      - 2 - 



            1.15     "Material Adverse Effect" shall mean, with respect to 
OBC or FESC, as the case may be, a material adverse effect on the business, 
results of operations or financial condition of such party and its 
Subsidiaries taken as a whole or a material adverse effect on such party's 
ability to consummate the transactions contemplated hereby; provided, 
however, that in determining whether a Material Adverse Effect has occurred 
there shall be excluded any effect on the referenced party the cause of which 
is (i) any change in banking or similar laws, rules or regulations of general 
applicability or interpretations thereof by courts or governmental 
authorities, (ii) any change in generally accepted accounting principles or 
regulatory accounting requirements applicable to banks, thrifts or their 
holding companies generally and (iii) any action or omission of OBC or FESC 
or any Subsidiary of either of them taken with the prior written consent of 
FESC or OBC, as applicable, in contemplation of the Merger.  

             1.16    "OBC Financial Statements" shall mean (i) the 
consolidated balance sheets of OBC as of June 30, 1997 and as of December 31, 
1996 and 1995 and the related consolidated statements of income, cash flows 
and changes in shareholders' equity (including related notes, if any) for the 
six months ended June 30, 1997 and each of the years ended December 31, 1996, 
1995 and 1994, respectively, as filed by OBC in SEC Documents and (ii) the 
consolidated balance sheets of OBC and related consolidated statements of 
income, cash flows and changes in shareholders' equity (including related 
notes, if any) as filed by OBC in SEC Documents with respect to periods ended 
subsequent to June 30, 1997. 

             1.17    "Option Agreement" shall mean the Stock Option Agreement 
dated of even date herewith between OBC and FESC pursuant to which OBC will 
grant FESC the right to purchase certain shares of OBC Common Stock (as 
defined below). 

             1.18    "Pennsylvania Banking Code" shall mean the Pennsylvania 
Banking Code of 1965, as amended. 

             1.19    "Previously Disclosed" shall mean disclosed prior to the 
execution hereof in (i) an SEC Document filed with the SEC subsequent to 
January 1, 1997 and prior to the date hereof or (ii) a letter dated of even 
date herewith from the party making such disclosure and delivered to the 
other party prior to the execution hereof.  Any information disclosed by one 
party to the other for any purpose hereunder shall be deemed to be disclosed 
for all purposes hereunder. The inclusion of any matter in information 
Previously Disclosed shall not be deemed an admission or otherwise to imply 
that any such matter is material for purposes of this Agreement. 

             1.20    "Proxy Statement" shall mean the joint proxy 
statement/prospectus (or similar documents) together with any supplements 
thereto sent to the shareholders of FESC and OBC to solicit their votes in 
connection with this Agreement and the Plan of Merger. 

             1.21    "Registration Statement" shall mean the registration 
statement with respect to the FESC Common Stock to be issued in connection 

                                      - 3 -




with the Merger as declared effective by the Commission under the Securities
Act.

             1.22    "Rights" shall mean warrants, options, rights, 
convertible securities and other arrangements or commitments which obligate 
an entity to issue or dispose of any of its capital stock, and stock 
appreciation rights, performance units and other similar stock-based rights 
whether they obligate the issuer thereof to issue stock or other securities 
or to pay cash.

             1.23    "SEC Documents" shall mean all reports and registration 
statements filed, or required to be filed, by a party hereto pursuant to the 
Securities Laws.

             1.24    "Securities Act" shall mean the Securities Act of 1933, 
as amended.

             1.25    "Securities Laws" shall mean the Securities Act; the 
Exchange Act; the Investment Company Act; the Investment Advisers Act of 1940,
as amended; the Trust Indenture Act of 1939, as amended; and the rules and
regulations of the Commission promulgated thereunder.

             1.26    "Subsidiary" shall mean, with respect to any party, any 
bank, corporation, partnership or other organization, whether incorporated or 
unincorporated, which is consolidated with such party for financial reporting 
purposes. 

             1.27    "Tax" (and, with correlative meaning, "Taxes" and 
"Taxable") shall mean any federal, state, local or foreign income, gross 
receipts, property, sales, use, license, excise, franchise, employment, 
payroll, withholding, alternative or add-on minimum, ad valorem, 
unemployment, social security, transfer or excise tax, or any other tax, 
custom, duty, governmental fee or other like assessment or charge of any kind 
whatsoever, together with any interest or penalty, imposed by any 
governmental authority. 

             1.28     "Tax Return" shall mean any return, report, estimate, 
information statement or similar statement required or permitted to be filed 
with respect to any Tax (including any attached schedules), including, 
without limitation, any information return, claim for refund, amended return 
or declaration of estimated Tax. 

             Other terms used herein are defined in the preamble and the 
recitals to this Reorganization Agreement and in Articles II, III and IV 
hereof.  

                                    ARTICLE 2.
                        REPRESENTATIONS AND WARRANTIES OF OBC

             OBC hereby represents and warrants to FESC as follows:
 
                                      - 4 -



2.1          Capital Structure of OBC

             The authorized capital stock of OBC consists of (i) 10,000,000 
shares of preferred stock, par value $1.00 per share ("OBC Preferred Stock"), 
none of which is issued and outstanding, and (ii) 56,000,000 shares of common 
stock, par value $1.00 per share ("OBC Common Stock"), of which, as of the 
date hereof, 12,712,981 shares are issued and outstanding and 1,606,935 
shares are held in treasury.  As of the date hereof, no shares of OBC 
Preferred Stock or OBC Common Stock are reserved for issuance, except that 
(i) 405,089 shares of OBC Common Stock are reserved for issuance pursuant to 
OBC's employee stock purchase plan, (ii) 455,504 shares of OBC Common Stock 
are reserved for issuance upon the exercise of stock options heretofore 
granted pursuant to OBC's stock option plans, (iii) 2,529,000 shares of OBC 
Common Stock are reserved for issuance pursuant to the Option Agreement and 
(iv) 65,000 shares of OBC Series A Junior Participating Preferred Stock, par 
value $1.00 per share (the "OBC Series A Preferred Stock"), were reserved for 
issuance upon exercise of the rights (the "OBC Rights") distributed to the 
holders of OBC Common Stock pursuant to the Rights Agreement, dated as of 
September 25, 1989, between OBC and The Bank of New York, as Rights Agent 
(the "OBC Rights Agreement").  All outstanding shares of OBC Common Stock 
have been duly authorized and validly issued and are fully paid and 
nonassessable.  OBC does not have and is not bound by any Rights which are 
authorized, issued or outstanding with respect to the capital stock of OBC 
except (i) for the Option Agreement, (ii) as Previously Disclosed and (iii) 
as set forth above.  None of the shares of OBC's capital stock has been 
issued in violation of the preemptive rights of any person.  

2.2          Organization, Standing and Authority of OBC

             OBC is a duly organized corporation, validly existing and in 
good standing under the laws of Delaware with full corporate power and 
authority to carry on its business as now conducted and is duly licensed or 
qualified to do business in the states of the United States and foreign 
jurisdictions where its ownership or leasing of property or the conduct of 
its business requires such qualification, except where the failure to be so 
licensed or qualified would not have a Material Adverse Effect on OBC.  OBC 
is registered as a bank holding company under the Bank Holding Company Act.

2.3          Ownership of OBC Subsidiaries; Capital
             Structure of OBC Subsidiaries

             OBC has Previously Disclosed to FESC a list of all of OBC's 
Subsidiaries (collectively, the "OBC Subsidiaries" and individually, an "OBC 
Subsidiary").  As of the date hereof, OBC does not own, directly or 
indirectly, 5% or more of the outstanding capital stock or other voting 
securities of any corporation, bank or other organization except as 
Previously Disclosed and except for the OBC Subsidiaries.  Except as 
Previously Disclosed, the outstanding shares of capital stock or other equity 
interests of each OBC Subsidiary have been duly authorized and validly issued 
and are fully paid and (except as provided by applicable law) nonassessable 
and all such shares or equity interests are directly or indirectly owned by 
OBC free 

                                      - 5 - 


and clear of all liens, claims and encumbrances.  No OBC Subsidiary has or is
bound by any Rights which are authorized, issued or outstanding with respect to
the capital stock or other equity interests of any OBC Subsidiary subject to the
liquidation accounts established and maintained by the OBC Banks in connection
with their conversion from mutual to stock form ("Liquidation Accounts"), and,
except as Previously Disclosed, there are no agreements, understandings or
commitments relating to the right of OBC to vote or to dispose of said shares. 
None of the shares of capital stock or other equity interests of any OBC
Subsidiary has been issued in violation of the preemptive rights of any person. 
The OBC Banks have established and maintained the Liquidation Accounts in all
material respects in accordance with  all applicable laws and regulations, and
the amount of the Liquidation Accounts as of December 31, 1996 was $803,849.

2.4          Organization, Standing and Authority of
             OBC Subsidiaries

             Each OBC Subsidiary is a duly organized corporation, banking 
association or other organization, validly existing and in good standing 
under the laws of its jurisdiction of organization.  Each OBC Subsidiary (i) 
has full power and authority to carry on its business as now conducted, and 
(ii) is duly licensed or qualified to do business in the states of the United 
States and foreign jurisdictions where its ownership or leasing of property 
or the conduct of its business requires such licensing or qualification, 
except where failure to be so licensed or qualified would not have a Material 
Adverse Effect on OBC. Each OBC Subsidiary has all federal, state, local and 
foreign governmental authorizations necessary for it to own or lease its 
properties and assets and to carry on its business as it is now being 
conducted, except where the failure to be so authorized would not have a 
Material Adverse Effect on OBC.  OnBank is a member in good standing of the 
Federal Home Loan Bank of New York and Franklin First is a member in good 
standing of the Federal Home Loan Bank of Pittsburgh and each of the OBC 
Banks owns the requisite amount of shares therein and is a qualified seller 
and servicer for the Federal National Mortgage Association and the Federal 
Home Loan Mortgage Corporation.  

2.5          Authorized and Effective Agreement

             (a)  OBC has all requisite corporate power and authority to 
enter into and perform all of its obligations under this Reorganization 
Agreement, the Plan of Merger and the Option Agreement.  The execution and 
delivery of this Reorganization Agreement, the Plan of Merger and the Option 
Agreement and the consummation of the transactions contemplated hereby and 
thereby have been duly and validly authorized by all necessary corporate 
action in respect thereof on the part of OBC, except that (assuming that 
FESC's representation and warranty in Section 3.21 hereof is true and 
correct) the affirmative vote of the holders of a majority of the outstanding 
shares of OBC Common Stock entitled to vote thereon is the only shareholder 
vote required to approve the Plan of Merger pursuant to the Delaware 
Corporation Law and OBC's Restated Certificate of Incorporation and Bylaws.  
The Board of Directors of OBC has directed that this Agreement and the Plan 
of Merger be 

                                      - 6 -




submitted to OBC's stockholders for approval at a special meeting to be held as
soon as practicable.

             (b)  Assuming the accuracy of the representation contained in 
Section 3.5(b) hereof, this Reorganization Agreement and the Plan of Merger 
constitute legal, valid and binding obligations of OBC, enforceable against 
it in accordance with their respective terms, subject as to enforceability, 
to bankruptcy, insolvency and other laws of general applicability relating to 
or affecting creditors' rights and to general equity principles.

             (c)  Except as Previously Disclosed, neither the execution and 
delivery of this Reorganization Agreement, the Plan of Merger or the Option 
Agreement, nor consummation of the transactions contemplated hereby or 
thereby, nor compliance by OBC with any of the provisions hereof or thereof 
shall (i) conflict with or result in a breach of any provision of the 
articles or certificate of incorporation or association, charter or by-laws 
of OBC or any OBC Subsidiary, (ii) assuming the consents and approvals 
contemplated by Section 4.3 hereof and the consents and approvals which are 
Previously Disclosed are duly obtained, constitute or result in a breach of 
any term, condition or provision of, or constitute a default under, or give 
rise to any right of termination, cancellation or acceleration with respect 
to, or result in the creation of any lien, charge or encumbrance upon any 
property or asset of OBC or any OBC Subsidiary pursuant to, any note, bond, 
mortgage, indenture, license, agreement or other instrument or obligation, or 
(iii) assuming the consents and approvals contemplated by Section 4.3 hereof 
and the consents and approvals which are Previously Disclosed are duly 
obtained, violate any order, writ, injunction, decree, statute, rule or 
regulation applicable to OBC or any OBC Subsidiary, except (in the case of 
clauses (ii) and (iii) above) for such violations, rights, conflicts, 
breaches, creations or defaults which, either individually or in the 
aggregate, would not have a Material Adverse Effect on OBC. 

             (d)  Other than as contemplated by Section 4.3 hereof and except 
as Previously Disclosed or expressly referred to in this Agreement, no 
consent, approval or authorization of, or declaration, notice, filing or 
registration with, any governmental or regulatory authority, or any other 
person, is required to be made or obtained by OBC or any OBC Subsidiary on or 
prior to the Closing Date in connection with the execution, delivery and 
performance of this Agreement and the Plan of Merger or the consummation of 
the transactions contemplated hereby or thereby.  Neither OBC nor any of the 
OBC Subsidiaries is aware of any reason why the condition set forth in 
Section 5.1(b) of this Agreement will not be satisfied without undue delay. 

2.6          SEC Documents; Regulatory Filings

             OBC has filed all SEC Documents required to be so filed by the 
Securities Laws and such SEC Documents complied, as of their respective 
dates, in all material respects with the Securities Laws.  OBC and each of 
the OBC Subsidiaries has filed all reports required by statute or regulation 
to be filed with any federal or state bank regulatory agency, except where 
the failure to so file would not have a Material Adverse Effect on OBC, and 
such 

                                      - 7 -




reports were prepared in accordance with the applicable statutes, regulations
and instructions in existence as of the date of filing of such reports in all
material respects.

2.7          Financial Statements; Books and Records;
             Minute Books
         
             The OBC Financial Statements filed by OBC in SEC Documents prior 
to the date of this Agreement fairly present, and the OBC Financial 
Statements filed by OBC in SEC Documents after the date of this Agreement 
will fairly present, the consolidated financial position of OBC and its 
Subsidiaries as of the dates indicated and the consolidated results of 
operations, changes in shareholders' equity and cash flows of OBC and its 
Subsidiaries for the periods then ended and each such financial statement has 
been or will be, as the case may be, prepared in conformity with generally 
accepted accounting principles applied on a consistent basis except as 
disclosed therein and except, in the case of unaudited statements, as 
permitted by Form 10-Q.  The books and records of OBC and each OBC Subsidiary 
fairly reflect in all material respects the transactions to which it is a 
party or by which its properties are subject or bound.  Such books and 
records have been properly kept and maintained in all material respects and 
are in compliance in all material respects with all applicable legal and 
accounting requirements.  The minute books of OBC and the OBC Subsidiaries 
contain records which are accurate in all material respects of all corporate 
actions of its shareholders and Board of Directors (including committees of 
its Board of Directors). 

2.8          Material Adverse Change

             Except as Previously Disclosed or as disclosed in any SEC 
Document filed by OBC prior to the date of this Agreement, OBC has not, on a 
consolidated basis, suffered any material adverse change in its financial 
condition, results of operations or business since December 31, 1996. 

2.9          Absence of Undisclosed Liabilities

             Neither OBC nor any OBC Subsidiary has any liability (contingent 
or otherwise), excluding contractually assumed contingencies, that has had a 
Material Adverse Effect on OBC, or that, when combined with all similar 
liabilities, would have a Material Adverse Effect on OBC, except as 
Previously Disclosed, as disclosed in the OBC Financial Statements filed with 
the SEC prior to the date hereof and except for liabilities incurred in the 
ordinary course of business subsequent to June 30, 1997. 

2.10         Properties  
        
             OBC or one of the OBC Subsidiaries has good and marketable title 
free and clear of all liens, encumbrances, charges, defaults or equitable 
interests to all of the properties and assets, real and personal, which, 
individually or in the aggregate, are material to the business of OBC and its 
Subsidiaries taken as a whole, and which are reflected on the OBC Financial 
Statements as of June 30, 1997 or acquired after such date, except (i) liens 

                                      - 8 -




for Taxes not yet due and payable, (ii) pledges to secure deposits and other 
liens incurred in the ordinary course of business, (iii) such imperfections 
of title, easements and encumbrances, if any, as are not material in 
character, amount or extent, (iv) dispositions and encumbrances for adequate 
consideration in the ordinary course of business and (v) to the extent such 
properties or assets are leased by OBC or any OBC Subsidiary.  All leases 
pursuant to which OBC or any OBC Subsidiary, as lessee, leases real and 
personal property which, individually or in the aggregate, are material to 
the business of OBC and its Subsidiaries taken as a whole are valid and 
enforceable in accordance with their respective terms, except where the 
failure of such lease or leases to be valid and enforceable would not, 
individually or in the aggregate, have a Material Adverse Effect on OBC.

2.11         Loans

             Each loan reflected as an asset in the OBC Financial Statements 
(i) is evidenced by notes, agreements or other evidences of indebtedness 
which are true, genuine and what they purport to be, (ii) to the extent 
secured, has been secured by valid liens and security interests which have 
been perfected, and (iii) is the legal, valid and binding obligation of the 
obligor named therein, enforceable in accordance with its terms, subject to 
bankruptcy, insolvency, fraudulent conveyance and other laws of general 
applicability relating to or affecting creditors' rights and to general 
equity principles, in each case other than loans as to which the failure to 
satisfy the foregoing standards would not have a Material Adverse Effect on 
OBC.

2.12         Tax Matters

             (a)  All federal, state, local and foreign Tax Returns required 
to be filed by or on behalf of OBC and each OBC Subsidiary have been timely 
filed or requests for extension have been timely filed and any such extension 
has been granted and has not expired, except where the failure to file timely 
such Tax Returns would not, in the aggregate, have a Material Adverse Effect 
on OBC.  All Tax Returns filed by OBC and each OBC Subsidiary are complete 
and accurate in all material respects.  All Taxes due in respect of the 
periods covered by the Tax Returns described in the first sentence of this 
Section 2.12(a) have been paid or adequate reserves have been established for 
the payment of such Taxes, except where any such failure to pay or establish 
adequate reserves would not, in the aggregate, have a Material Adverse Effect 
on OBC and, as of the Closing Date, all Taxes due in respect of any 
subsequent periods (or portions thereof) ending on or prior to the Closing 
Date will have been paid or adequate reserves will have been established for 
the payment thereof consistent with the past practices of OBC, except where 
any such failure to pay or establish adequate reserves would not, in the 
aggregate, have a Material Adverse Effect on OBC.  Except as Previously 
Disclosed, there is no outstanding or proposed material (i) audit 
examination, (ii) deficiency, or (iii) refund litigation with respect to Tax 
Returns filed or required to be filed by OBC or any OBC Subsidiary.

             (b)  Except as Previously Disclosed, neither OBC nor any OBC 
Subsidiary has requested any extension of time within which to file any Tax 

                                     - 9 - 




Returns in respect of any fiscal year or portion thereof which have not since
been filed.  Except as Previously Disclosed, there are currently no material
agreements in effect with respect to OBC or any OBC Subsidiary to extend the
period of limitations for the assessment or collection of any Tax.

             (c)  Except as Previously Disclosed, neither the transactions 
contemplated hereby nor the termination of the employment of any employees of 
OBC or any OBC Subsidiary prior to or following consummation of the 
transactions contemplated hereby could result in OBC or any OBC Subsidiary 
making or being required to make any "excess parachute payment" as that term 
is defined in Section 280G of the Code.
         
             (d)  Except as Previously Disclosed, neither OBC nor any OBC 
Subsidiary is a party to any agreement providing for the allocation or 
sharing of, or indemnification for, Taxes.

             (e)  Except as Previously Disclosed, neither OBC nor any OBC 
Subsidiary is required to include in income any adjustment in any taxable 
period ending after the date hereof pursuant to Section 481(a) of the Code.

             (f)  Except as Previously Disclosed, neither OBC nor any OBC 
Subsidiary has entered into any material agreement with any taxing authority 
that will bind FESC or an affiliate thereof after the Closing Date.

             (g)  For purposes of this Section 2.12 only, "OBC Subsidiary" 
shall mean any corporation, joint venture or other entity in which OBC (a) 
owns, directly or indirectly, 50% or more of the outstanding voting 
securities or equity interests or (b) is a general partner. 

2.13         Employee Benefit Plans     

             (a)  Schedule 2.13(a) hereto sets forth a true and complete list 
of each material OBC Plan.  For purposes of this Section 2.13, the term "OBC 
Plan" means each bonus, deferred compensation, incentive compensation, stock 
purchase, stock option, severance pay, medical, life or other insurance, 
profit-sharing, or pension plan, program, agreement or arrangement, and each 
other employee benefit plan, program, agreement or arrangement, sponsored, 
maintained or contributed to or required to be contributed to by OBC or by 
any trade or business, whether or not incorporated, that together with OBC 
would be deemed a "single employer" under Section 414 of the Code (an "ERISA 
Affiliate") for the benefit of any employee or director or former employee or 
former director of OBC or any ERISA Affiliate of OBC.     

             (b)  With respect to each of the material OBC Plans, OBC has 
made available to FESC true and complete copies of each of the following 
documents:  (a) the OBC Plan and related documents (including all amendments 
thereto); (b) the most recent annual reports, financial statements, and 
actuarial reports, if any; (c) the most recent summary plan description, 
together with each summary of material modifications, required under ERISA 
with respect to such OBC Plan; and (d) the most recent determination letter 

                                      - 10 -



received from the IRS with respect to each OBC Plan that is intended to be 
qualified under the Code.

             (c)  No liability under Title IV of ERISA has been incurred by 
OBC or any ERISA Affiliate of OBC since the effective date of ERISA that has 
not been satisfied in full, and no condition exists that presents a material 
risk to OBC or any ERISA Affiliate of OBC of incurring a liability under such 
Title, other than liability for premium payments to the Pension Benefit 
Guaranty Corporation, which premiums have been or will be paid when due.
     
             (d)  Neither OBC nor any ERISA Affiliate of OBC, nor any of the 
OBC Plans, nor any trust created thereunder, nor any trustee or administrator 
thereof has engaged in a prohibited transaction (within the meaning of 
Section 406 of ERISA and Section 4975 of the Code) in connection with which 
OBC or any ERISA Affiliate of OBC could, either directly or indirectly, incur 
a material liability or cost.

             (e)  Full payment has been made, or will be made in accordance 
with Section 404(a)(6) of the Code, of all amounts that OBC or any ERISA 
Affiliate of OBC is required to pay under Section 412 of the Code or under 
the terms of the OBC Plans.

             (f)  As of the Closing Date, the then fair market value of the 
assets held under each OBC Plan that is subject to Title IV of ERISA will be 
sufficient so as to permit a "standard termination" of each such OBC Plan 
under Section 4042(b) of ERISA without the need to make any additional 
contributions to such OBC Plans.  No reportable event under Section 4043 of 
ERISA has occurred or will occur with respect to any OBC Plan on or before 
the Closing Date other than any reportable event occurring by reason of the 
transactions contemplated by this Agreement or a reportable event for which 
the requirement of notice to the PBGC has been waived.  

             (g)  Except as Previously Disclosed, none of the OBC Plans is a 
"multiemployer pension plan," as such term is defined in Section 3(37) of 
ERISA, a "multiple employer welfare arrangement," as such term is defined in 
Section 3(40) of ERISA, or a single employer plan that has two or more 
contributing sponsors, at least two of whom are not under common control, 
within the meaning of Section 4063(a) of ERISA.

             (h)  A favorable determination letter has been issued by the 
Internal Revenue Service with respect to the each of the OBC Plans that is 
intended to be "qualified" within the meaning of Section 401(a) of the Code 
to the effect that such plan is so qualified and each such OBC Plan satisfies 
the requirements of Section 401(a) of the Code in all material respects.  
Each of the OBC Plans that is intended to satisfy the requirements of 
Section 125 or 501(c)(9) of the Code satisfies such requirements in all 
material respects.  Each of the OBC Plans has been operated and administered 
in all material respects in accordance with its terms and applicable laws, 
including but not limited to ERISA and the Code.

                                      - 11 -




             (i)  There are no actions, suits or claims pending, or, to the 
knowledge of OBC, threatened or anticipated (other than routine claims for 
benefits) against any OBC Plan, the assets of any OBC Plan or against OBC or 
any ERISA Affiliate of OBC with respect to any OBC Plan.  There is no 
judgment, decree, injunction, rule or order of any court, governmental body, 
commission, agency or arbitrator outstanding against or in favor of any OBC 
Plan or any fiduciary thereof (other than rules of general applicability). 
There are no pending or threatened audits, examinations or investigations by 
any governmental body, commission or agency involving any OBC Plan.

             (j)  Except as Previously Disclosed, the consummation of the 
transactions contemplated by this Agreement will not (i) entitle any current 
or former employee or director of OBC or any ERISA Affiliate of OBC to 
severance pay, unemployment compensation or any similar payment, or (ii) 
accelerate the time of payment or vesting, or increase the amount, of any 
compensation due to any such current or former employee or director, or (iii) 
renew or extend the term of any agreement regarding compensation for any such 
current or former employee or director.    

2.14         Certain Contracts     

             (a)  Except as Previously Disclosed, neither OBC nor any OBC 
Subsidiary is a party to, or is bound by, (i) any material contract as 
defined in Item 601(b)(10) of Regulation S-K of the SEC or any other material 
contract or similar arrangement whether or not made in the ordinary course of 
business (other than loans or loan commitments and funding transactions in 
the ordinary course of business of the OBC Subsidiaries) or any agreement 
restricting the nature or geographic scope of its business activities in any 
material respect, (ii) any agreement, indenture or other instrument relating 
to the borrowing of money by OBC or any OBC Subsidiary or the guarantee by 
OBC or any OBC Subsidiary of any such obligation, other than instruments 
relating to transactions entered into in the ordinary course and except as 
reflected in the OBC Financial Statements filed with the SEC prior to the 
date of this Agreement, (iii) any agreement, arrangement or commitment 
relating to the employment of a consultant who was formerly a director or 
executive officer or the employment, election, retention in office or 
severance of any present or former director or officer, or (iv) any contract, 
agreement or understanding with a labor union, in each case whether written 
or oral.     

             (b)  Except as Previously Disclosed, neither OBC nor any OBC 
Subsidiary is in default under any material agreement, commitment, 
arrangement, lease, insurance policy or other instrument whether entered into 
in the ordinary course of business or otherwise and whether written or oral, 
and there has not occurred any event that, with the lapse of time or giving 
of notice or both, would constitute such a default, except for such defaults 
which would not, individually or in the aggregate, have a Material Adverse 
Effect on OBC.

                                      - 12 -



2.15         Legal Proceedings

             Except as Previously Disclosed, there are no actions, suits or 
proceedings instituted, pending or, to the knowledge of OBC, threatened (or 
to the knowledge of OBC, unasserted but considered probable of assertion and 
which if asserted would have at least a reasonable probability of an 
unfavorable outcome) against OBC or any OBC Subsidiary or against any asset 
or property of OBC or any OBC Subsidiary as to which there is a reasonable 
probability of an unfavorable outcome and which, if such an unfavorable 
outcome was rendered, would, individually or in the aggregate, have a 
Material Adverse Effect on OBC. To the knowledge of OBC, there are no actual 
or threatened actions, suits or proceedings which present a claim to restrain 
or prohibit the transactions contemplated herein or to impose any material 
liability in connection therewith as to which there is a reasonable 
probability of an unfavorable outcome and which, if such an unfavorable 
outcome was rendered, would, individually or in the aggregate, have a 
Material Adverse Effect on OBC.  Except as Previously Disclosed, there are no 
actions, suits or proceedings instituted, pending or, to the knowledge of 
OBC, threatened (or to the knowledge of OBC, unasserted but considered 
probable of assertion and which if asserted would be reasonably expected to 
have an unfavorable outcome) against any present or former director or 
officer of OBC in such capacity, that might give rise to a claim for 
indemnification and that (i) has a reasonable probability of an unfavorable 
outcome and (ii) in the event of an unfavorable outcome, would, individually 
or in the aggregate, have a Material Adverse Effect on OBC.

2.16         Compliance with Laws

             Except as Previously Disclosed, OBC and each OBC Subsidiary is 
in compliance in all material respects with all statutes and regulations 
applicable to the conduct of its business, and neither OBC nor any OBC 
Subsidiary has received notification from any agency or department of 
federal, state or local government (i) asserting a material violation of any 
such statute or regulation, (ii) threatening to revoke any license, 
franchise, permit or government authorization or (iii) restricting or in any 
way limiting its operations, except for such noncompliance, violations, 
revocations and restrictions which would not, individually or in the 
aggregate, have a Material Adverse Effect on OBC. Neither OBC nor any OBC 
Subsidiary is subject to any regulatory or supervisory cease and desist 
order, agreement, directive, memorandum of understanding or commitment which 
would have a Material Adverse Effect on OBC, and none of them has received 
any communication requesting that they enter into any of the foregoing.  

2.17         Labor Matters  

             With respect to their employees, neither OBC nor any OBC 
Subsidiary is a party to any labor agreement with any labor organization, 
group or association and has not engaged in any unfair labor practice.  Since 
January 1, 1997 and prior to the date hereof, OBC and the OBC Subsidiaries 
have not experienced any attempt by organized labor or its representatives to 
make OBC or any OBC Subsidiary conform to demands of organized labor relating 

                                      - 13 -




to their employees or to enter into a binding agreement with organized labor
that would cover the employees of OBC or any OBC Subsidiary.  To the knowledge
of OBC, there is no unfair labor practice charge or other complaint by any
employee or former employee of OBC or any OBC Subsidiary against any of them
pending before any governmental agency arising out of OBC's or such OBC
Subsidiary's activities, which charge or complaint (i) has a reasonable
probability of an unfavorable outcome and (ii) in the event of an unfavorable
outcome would, individually or in the aggregate, have a Material Adverse Effect
on OBC; there is no labor strike or labor disturbance pending or threatened
against any of them; and neither OBC nor any OBC Subsidiary has experienced a
work stoppage or other labor difficulty since January 1, 1997.

2.18         Brokers and Finders
         
             Neither OBC nor any OBC Subsidiary, nor any of their respective 
officers, directors or employees, has employed any broker, finder or 
financial advisor or incurred any liability for any fees or commissions in 
connection with the transactions contemplated herein or the Plan of Merger, 
except for OBC's retention of Sandler O'Neill & Partners, L.P. to perform 
certain financial advisory services as Previously Disclosed. 

2.19         Insurance

             OBC and the OBC Subsidiaries each currently maintains insurance 
in amounts reasonably necessary for their operations.  Neither OBC nor any 
OBC Subsidiary has received any notice of a material premium increase or 
cancellation with respect to any of its insurance policies or bonds, and 
within the last three years, neither OBC nor any OBC Subsidiary has been 
refused any insurance coverage sought or applied for, and OBC has no reason 
to believe that existing insurance coverage cannot be renewed as and when the 
same shall expire, upon terms and conditions substantially as presently in 
effect, other than possible increases in premiums or unavailability in 
coverage that have not resulted from any extraordinary loss experience of OBC 
or any OBC Subsidiary. The deposits of the OBC Banks are insured by the FDIC 
in accordance with the FDIA, and the OBC Banks have paid all assessments and 
filed all reports required by the FDIA. 

2.20         Environmental Liability

             Neither OBC nor any OBC Subsidiary has received any written 
notice of any legal, administrative, arbitral or other proceeding, claim or 
action and, to the knowledge of OBC and the OBC Subsidiaries, there is no 
governmental investigation of any nature ongoing, in each case that could 
reasonably be expected to result in the imposition, on OBC or any OBC 
Subsidiary of any liability arising under any local, state or federal 
environmental statute, regulation or ordinance including, without limitation, 
the Comprehensive Environmental Response, Compensation and Liability Act of 
1980, as amended, which liability would have a Material Adverse Effect on 
OBC; except as Previously Disclosed, there are no facts or circumstances 
which could reasonably be expected to form the basis for any such proceeding, 
claim, action or governmental investigation that would impose any such 
liability; and 

                                      - 14 -




neither OBC nor any OBC Subsidiary is subject to any agreement, order, judgment,
decree or memorandum by or with any court, governmental authority, regulatory
agency or third party imposing any such liability.

2.21         Administration of Trust Accounts
    
             Each OBC Subsidiary has properly administered all common trust 
funds and collective investment funds and all accounts for which it acts as a 
fiduciary or agent, including but not limited to accounts for which it serves 
as a trustee, agent, custodian, personal representative, guardian, 
conservator or investment advisor, in accordance with the terms of the 
governing documents and applicable state and federal law and regulation and 
common law, except where the failure to do so would not, individually or in 
the aggregate, have a Material Adverse Effect on OBC.  Neither OBC, any OBC 
Subsidiary, nor any director, officer or employee of OBC or any OBC 
Subsidiary acting on behalf of OBC or an OBC Subsidiary, has committed any 
breach of trust with respect to any such common trust fund or collective 
investment fund or fiduciary or agency account, and the accountings for each 
such common trust fund or collective investment fund or fiduciary or agency 
account are true and correct in all material respects and accurately reflect 
the assets of such common trust fund or collective investment fund or 
fiduciary or agency account, except for such breaches and failures to be 
true, correct and accurate which would not, individually or in the aggregate, 
have a Material Adverse Effect on OBC.

2.22         Intellectual Property

             Except as Previously Disclosed, OBC or an OBC Subsidiary owns 
the entire right, title and interest in and to, or has valid licenses with 
respect to, all of the Intellectual Property necessary in all material 
respects to conduct the business and operations of OBC and the OBC 
Subsidiaries as presently conducted, except where the failure to do so would 
not, individually or in the aggregate, have a Material Adverse Effect on OBC. 
None of such Intellectual Property is subject to any outstanding order, 
decree, judgment, stipulation, settlement, lien, charge, encumbrance or 
attachment, which order, decree, judgment, stipulation, settlement, lien, 
charge, encumbrance or attachment would have a Material Adverse Effect on 
OBC.  Except as Previously Disclosed, upon consummation of the transactions 
contemplated by this Agreement FESC and the FESC Subsidiaries will be 
entitled to continue to use all such Intellectual Property without the 
payment of any fees, licenses or other payments (other than ongoing payments 
required under license agreements for software used by OBC or the OBC 
Subsidiaries in Previously Disclosed amounts consistent with past practice).  

2.23         Risk Management Instruments          

             All interest rate swaps, caps, floors, option agreements, 
futures and forward contracts and other similar risk management arrangements, 
whether entered into for OBC's own account, or for the account of one or more 
of the OBC Subsidiaries or their customers, were entered into (i) in 
accordance with prudent business practices and all applicable laws, rules, 

                                      - 15 -




regulations and regulatory policies and (ii) with counterparties believed to be
financially responsible at the time; and each of them constitutes the valid and
legally binding obligation of OBC or one of the OBC Subsidiaries, enforceable in
accordance with its terms (except as enforceability may be limited by applicable
bankruptcy, insolvency, reorganization, moratorium, fraudulent transfer and
similar laws of general equity principles), and neither OBC nor any OBC
Subsidiary nor to OBC's knowledge, any other party thereto, is in breach of any
of its obligations under any such agreement or arrangement.  OBC has Previously
Disclosed all of such agreements and arrangements that are in effect as of the
date of this Agreement.

2.24         Repurchase Agreements

             With respect to all agreements pursuant to which OBC or any OBC 
Subsidiary has purchased securities subject to an agreement to resell, if 
any, OBC or such OBC Subsidiary, as the case may be, has a valid, perfected 
first lien or security interest in or evidence of ownership in book entry 
form of the government securities or other collateral securing the repurchase 
agreements, and the value of such collateral equals or exceeds the amount of 
the debt secured thereby.

2.25         Certain Information

             The information relating to OBC and the OBC Subsidiaries to be 
provided by OBC to be contained in the Proxy Statement and the Registration 
Statement will not contain any untrue statement of a material fact or omit to 
state a material fact necessary to make the statements therein not 
misleading.  The Proxy Statement (except for such portions thereof that 
relate only to FESC or any of its Subsidiaries) will comply in all material 
respects with the provisions of the Exchange Act and the rules and 
regulations thereunder. 

2.26         Tax Treatment

             As of the date of this Agreement, OBC knows of no reason 
relating to it or any of the OBC Subsidiaries which would reasonably cause it 
to believe that the Merger will not qualify as a tax-free reorganization 
under Section 368(a) of the Code. 

2.27         Rights Agreement

             Subject to the execution of an amendment to the OBC Rights 
Agreement which has been approved by OBC's Board of Directors and shall be 
executed promptly after the date of this Agreement, OBC has taken or will 
take all action (including, if required, redeeming all of the outstanding OBC 
Rights issued pursuant to the OBC Rights Agreement or amending or terminating 
the OBC Rights Agreement) so that the entering into of this Agreement, the 
Plan of Merger and the Stock Option Agreement and the consummation of the 
transactions contemplated hereby and thereby do not and will not result in 
the grant of any rights to any person under the OBC Rights Agreement or 
enable or require the OBC Rights to be exercised, distributed or triggered.

                                      - 16 -




                                     ARTICLE 3.
                         REPRESENTATIONS AND WARRANTIES OF 
                                FESC AND MERGER SUB

             FESC and Merger Sub hereby jointly and severally represent and 
warrant to OBC as follows:

3.1          Capital Structure of FESC

             The authorized capital stock of FESC consists at September 30, 
1997 of (i) 1,000,000 shares of preferred stock, par value $1.00 per share 
("FESC Preferred Stock"), none of which were issued and outstanding and (ii) 
15,000,000 shares of common stock, par value $5.00 per share ("FESC Common 
Stock"), of which, as of the date hereof, 6,598,509 shares were issued and 
outstanding and 1,498,963 shares were held in treasury.  As of the date 
hereof, no shares of FESC Common Stock or FESC Preferred Stock are reserved 
for issuance, except that (i) 350,000 shares of FESC Common Stock are 
reserved for issuance under FESC's Retirement Savings Plan and Trust Plan and 
(ii) 1,006,247 shares of FESC Common Stock are reserved for issuance upon the 
exercise of stock options granted pursuant to the 1983 First Empire State 
Corporation Stock Option Plan.  All outstanding shares of FESC capital stock 
have been duly authorized and validly issued and are fully paid and 
nonassessable.  None of the shares of FESC's capital stock has been issued in 
violation of the preemptive rights of any person.  The shares of FESC Common 
Stock to be issued in connection with the Merger have been duly authorized 
and, when issued in accordance with the terms of this Reorganization Agreement 
and the Plan of Merger, will be validly issued, fully paid and nonassessable 
and free and clear of any preemptive rights, other than liability pursuant to 
Section 630 of the New York Business Corporation Law or liability created by 
the actions of the owner of such shares.

3.2          Organization, Standing and Authority of FESC

             FESC is a duly organized corporation, validly existing and in 
good standing under the laws of New York, with full corporate power and 
authority to carry on its business as now conducted and is duly licensed or 
qualified to do business in the states of the United States and foreign 
jurisdictions where its ownership or leasing of property or the conduct of 
its business requires such qualification, except where the failure to be so 
licensed or qualified would not have a Material Adverse Effect on FESC.  FESC 
is registered as a bank holding company under the Bank Holding Company Act.

3.3          Ownership of FESC Subsidiaries; Capital
             Structure of FESC Subsidiaries

             FESC does not own, directly or indirectly, 25% or more of the 
outstanding capital stock or other voting securities of any corporation, bank 
or other organization except as Previously Disclosed (collectively the "FESC 
Subsidiaries" and individually a "FESC Subsidiary").  Except as Previously 
Disclosed, the outstanding shares of capital stock of the FESC Subsidiaries 
have been duly authorized and validly issued and are fully paid and (except 
as provided in 12 U.S.C. 55 or Section 114 of the New York Banking Law) 

                                      - 17 - 




nonassessable and all such shares are directly or indirectly owned by FESC free
and clear of all liens, claims and encumbrances.  No FESC Subsidiary has or is
bound by any Rights which are authorized, issued or outstanding with respect to
the capital stock of any FESC Subsidiary and, except as Previously Disclosed,
there are no agreements, understandings or commitments relating to the right of
FESC to vote or to dispose of said shares.  None of the shares of capital stock
of any FESC Subsidiary has been issued in violation of the preemptive rights of
any person.

3.4          Organization, Standing and Authority of
             FESC Subsidiaries

             Each FESC Subsidiary is a duly organized corporation or banking 
association, validly existing and in good standing under the laws of its 
jurisdiction of incorporation.  Each FESC Subsidiary (i) has full power and 
authority to carry on its business as now conducted, and (ii) is duly 
licensed or qualified to do business in the states of the United States and 
foreign jurisdictions where its ownership or leasing of property or the 
conduct of its business requires such licensing or qualification and where 
failure to be licensed or qualified would have a Material Adverse Effect on 
FESC.  Each FESC Subsidiary has all federal, state, local and foreign 
governmental authorizations necessary for it to own or lease its properties 
and assets and to carry on its business as it is now being conducted, except 
where the failure to be so authorized would not have a Material Adverse 
Effect on FESC.

3.5          Authorized and Effective Agreement

             (a)  Each of FESC and Merger Sub has all requisite corporate 
power and authority to enter into and perform all of its obligations under 
this Reorganization Agreement and the Plan of Merger.  The execution and 
delivery of this Reorganization Agreement and the Plan of Merger and the 
consummation of the transactions contemplated hereby and thereby have been 
duly and validly authorized by all necessary corporate action in respect 
thereof on the part of FESC and Merger Sub, except that the affirmative vote 
of the holders of a majority of the votes cast by the holders of FESC capital 
stock eligible to vote thereon is required to authorize the issuance of FESC 
Common Stock pursuant to this Reorganization Agreement and the Plan of Merger 
in accordance with American Stock Exchange ("AMEX") policy.  The Board of 
Directors of FESC has directed that the issuance of FESC Common Stock 
pursuant to this Agreement and the Plan of Merger be submitted to FESC's 
stockholders for approval at a special meeting to be held as soon as 
practicable.

             (b)  Assuming the accuracy of the representation contained in 
Section 2.5(b) hereof, this Reorganization Agreement and the Plan of Merger 
constitute legal, valid and binding obligations of each of FESC and Merger 
Sub, in each case enforceable against it in accordance with their respective 
terms subject, as to enforceability, to bankruptcy, insolvency and other laws 
of general applicability relating to or affecting creditors' rights and to 
general equity principles.

                                      - 18 -




             (c)  Except as Previously Disclosed, neither the execution and 
delivery of this Reorganization Agreement or the Plan of Merger, nor 
consummation of the transactions contemplated hereby or thereby, nor 
compliance by FESC or Merger Sub with any of the provisions hereof or thereof 
shall (i) conflict with or result in a breach of any provision of the 
articles or certificate of incorporation or association, charter or by-laws 
of FESC or any FESC Subsidiary, (ii) assuming the consents and approvals 
contemplated by Section 4.3 hereof and the consents and approvals which are 
Previously Disclosed are duly obtained, constitute or result in a breach of 
any term, condition or provision of, or constitute a default under, or give 
rise to any right of termination, cancellation or acceleration with respect 
to, or result in the creation of any lien, charge or encumbrance upon any 
property or asset of FESC or any FESC Subsidiary pursuant to, any note, bond, 
mortgage, indenture, license, agreement or other instrument or obligation, or 
(iii) assuming the consents and approvals contemplated by Section 4.3 hereof 
and the consents and approvals which are Previously Disclosed are duly 
obtained, violate any order, writ, injunction, decree, statute, rule or 
regulation applicable to FESC or any FESC Subsidiary, except (in the case of 
clauses (ii) and (iii) above) for such violations, rights, conflicts, 
breaches, creations or defaults which, either individually or in the 
aggregate, would not have a Material Adverse Effect on FESC.

             (d)  Except for approvals specified in Section 4.3 hereof, 
except as Previously Disclosed and except as expressly referred to in this 
Reorganization Agreement, no consent, approval or authorization of, or 
declaration, notice, filing or registration with, any governmental or 
regulatory authority, or any other person, is required to be made or obtained 
by FESC or Merger Sub on or prior to the Closing Date in connection with the 
execution, delivery and performance of this Agreement and the Plan of Merger 
or the consummation of the transactions contemplated hereby or thereby. 
Neither FESC nor any of the FESC Subsidiaries is aware of any reason why the 
conditions set forth in Section 5.1(b) of this Agreement will not be 
satisfied without undue delay. 

3.6          SEC Documents; Regulatory Filings          

             FESC has filed all SEC Documents required to be so filed by the 
Securities Laws and such SEC Documents complied, as of their respective 
dates, in all material respects with the Securities Laws.  FESC and each of 
the FESC Subsidiaries has filed all reports required by statute or regulation 
to be filed with any federal or state bank regulatory agency, except where 
the failure to so file would not have a Material Adverse Effect on FESC, and 
such reports were prepared in accordance with the applicable statutes, 
regulations and instructions in existence as of the date of filing of such 
reports in all material respects.

3.7          Financial Statements; Books and Records;
             Minute Books

             The FESC Financial Statements filed by FESC in SEC Documents 
prior to the date of this Agreement fairly present, and the FESC Financial 

                                      - 19 - 




Statements filed by FESC in SEC Documents after the date of this Agreement 
will fairly present the consolidated financial position of FESC and its 
Subsidiaries as of the dates indicated and the consolidated results of 
operations, changes in shareholders' equity and cash flows of FESC and its 
Subsidiaries for the periods then ended and each such financial statement has 
been or will be, as the case may be, prepared in conformity with generally 
accepted accounting principles applied on a consistent basis except as 
disclosed therein and except, in the case of unaudited statements, as 
permitted by Form 10-Q.  The books and records of FESC and each FESC 
Subsidiary fairly reflect in all material respects the transactions to which 
it is a party or by which its properties are subject or bound.  Such books 
and records have been properly kept and maintained and are in compliance in 
all material respects with all applicable legal and accounting requirements.  
The minute books of FESC and the FESC Subsidiaries contain records which are 
accurate in all material respects of all corporate actions of its 
shareholders and Board of Directors (including committees of its Board of 
Directors).

3.8          Material Adverse Change
 
             FESC has not, on a consolidated basis, suffered any material 
adverse change in its financial condition, results of operations or business 
since December 31, 1996.

3.9          Absence of Undisclosed Liabilities

             Neither FESC nor any FESC Subsidiary has any liability 
(contingent or otherwise), excluding contractually assumed contingencies, 
that has had a Material Adverse Effect on FESC or that, when combined with 
all similar liabilities, would have a Material Adverse Effect on FESC, except 
as Previously Disclosed, as disclosed in the FESC Financial Statements filed 
with the SEC prior to the date hereof and except for liabilities incurred in 
the ordinary course of business subsequent to June 30, 1997. 

3.10         Legal Proceedings 

             Except as Previously Disclosed, there are no actions, suits or 
proceedings instituted, pending or, to the knowledge of FESC and Merger Sub, 
threatened (or to the knowledge of FESC, unasserted but considered probable 
of assertion and which if asserted would have at least a reasonable 
probability of an unfavorable outcome) against FESC, Merger Sub or any FESC 
Subsidiary or against any asset or property of FESC or any FESC Subsidiary as 
to which there is a reasonable probability of an unfavorable outcome and 
which, if such an unfavorable outcome was rendered, would, individually or in 
the aggregate, have a Material Adverse Effect on FESC.  To the knowledge of 
FESC and Merger Sub, there are no actual or threatened actions, suits or 
proceedings which present a claim to restrain or prohibit the transactions 
contemplated herein or to impose any material liability in connection 
therewith as to which there is a reasonable probability of an unfavorable 
outcome and which, if such an unfavorable outcome was rendered, would, 
individually or in the aggregate, have a Material Adverse Effect on FESC.

                                      - 20 - 




3.11         Compliance with Laws

             Except as Previously Disclosed, each of FESC and the FESC 
Subsidiaries is in compliance in all material respects with all statutes and 
regulations applicable to the conduct of its business, and none of them has 
received notification from any agency or department of federal, state or 
local government (i) asserting a material violation of any such statute or 
regulation, (ii) threatening to revoke any license, franchise, permit or 
government authorization or (iii) restricting or in any way limiting its 
operations, except for such noncompliance, violations, revocations and 
restrictions which would not, individually or in the aggregate, have a 
Material Adverse Effect on FESC.  None of FESC or any FESC Subsidiary is 
subject to any regulatory or supervisory cease and desist order, agreement, 
directive, memorandum of understanding or commitment which would have a 
Material Adverse Effect on FESC, and none of them has received any 
communication requesting that they enter into any of the foregoing.

3.12         Employee Benefit Plans.

             (a)  Schedule 3.12(a) hereto sets forth a true and complete list 
of each material FESC Plan.  For purposes of this Section 3.12 the term "FESC 
Plan" means each bonus, deferred compensation, incentive compensation, stock 
purchase, stock option, severance pay, medical, life or other insurance, 
profit-sharing, or pension plan, program, agreement or arrangement, and each 
other employee benefit plan, program, agreement or arrangement, sponsored, 
maintained or contributed to or required to be contributed to by FESC or by 
any trade or business, whether or not incorporated, that together with FESC 
would be deemed a "single employer" under Section 414 of the Code (an "ERISA 
Affiliate") for the benefit of any employee or director or former employee or 
former director of FESC or any ERISA Affiliate of FESC.

             (b)  With respect to each of the material FESC Plans, FESC has 
made available to OBC true and complete copies of each of the following 
documents: (a) the FESC Plan and related documents (including all amendments 
thereto); (b) the most recent annual reports, financial statements, and 
actuarial reports, if any; (c) the most recent summary plan description, 
together with each summary of material modifications, required under ERISA 
with respect to such FESC Plan; and (d) the most recent determination letter 
received from the IRS with respect to each FESC Plan that is intended to be 
qualified under the Code.

             (c)  No liability under Title IV of ERISA has been incurred by 
FESC or any ERISA Affiliate of FESC since the effective date of ERISA that 
has not been satisfied in full, and no condition exists that presents a 
material risk to FESC or any ERISA Affiliate of FESC of incurring a liability 
under such Title, other than liability for premium payments to the Pension 
Benefit Guaranty Corporation, which premiums have been or will be paid when 
due.

             (d)  Neither FESC nor any ERISA Affiliate of FESC, nor any of 
the FESC Plans, nor any trust created thereunder, nor any trustee or 
administrator thereof has engaged in a prohibited transaction (within the 

                                      - 21 - 



meaning of Section 406 of ERISA and Section 4975 of the Code) in connection 
with which FESC or any ERISA Affiliate of FESC could, either directly or 
indirectly, incur a material liability or cost.

             (e)  Full payment has been made, or will be made in accordance 
with Section 404(a)(6) of the Code, of all amounts that FESC or any ERISA 
Affiliate of FESC is required to pay under Section 412 of the Code or under 
the terms of the FESC Plans.     

             (f)  As of the Closing Date, the then fair market value of the 
assets held under each FESC Plan that is subject to Title IV of ERISA will be 
sufficient so as to permit a "standard termination" of each such FESC Plan 
under Section 4042(b) of ERISA without the need to make any additional 
contributions to such FESC Plans.  No reportable event under Section 4043 of 
ERISA has occurred or will occur with respect to any FESC Plan on or before 
the Closing Date other than any reportable event occurring by reason of the 
transactions contemplated by this Agreement or a reportable event for which 
the requirement of notice to the PBGC has been waived.      

             (g)  Except as Previously Disclosed, none of the FESC Plans is a 
"multiemployer pension plan," as such term is defined in Section 3(37) of 
ERISA, a "multiple employer welfare arrangement," as such term is defined in 
Section 3(40) of ERISA, or a single employer plan that has two or more 
contributing sponsors, at least two of whom are not under common control, 
within the meaning of Section 4063(a) of ERISA.     

             (h)  A favorable determination letter has been issued by the 
Internal Revenue Service with respect to the each of the FESC Plans that is 
intended to be "qualified" within the meaning of Section 401(a) of the Code 
to the effect that such plan is so qualified and each such FESC Plan 
satisfies the requirements of Section 401(a) of the Code in all material 
respects.  Each of the FESC Plans that is intended to satisfy the 
requirements of Section 125 or 501(c)(9) of the Code satisfies such 
requirements in all material respects.  Each of the FESC Plans has been 
operated and administered in all material respects in accordance with its 
terms and applicable laws, including but not limited to ERISA and the Code.   

             (i)  There are no actions, suits or claims pending, or, to the 
knowledge of FESC, threatened or anticipated (other than routine claims for 
benefits) against any FESC Plan, the assets of any FESC Plan or against FESC 
or any ERISA Affiliate of FESC with respect to any FESC Plan, except for 
actions, suits or claims that, if decided adversely to FESC, would not, 
individually or in the aggregate, have a Material Adverse Effect on FESC. 
There is no judgment, decree, injunction, rule or order of any court, 
governmental body, commission, agency or arbitrator outstanding against or in 
favor of any FESC Plan or any fiduciary thereof (other than rules of general 
applicability).  There are no pending or threatened audits, examinations or 
investigations by any governmental body, commission or agency involving any 
FESC Plan.

                                      - 22 -




             (j)  Except as Previously Disclosed, the consummation of the 
transactions contemplated by this Agreement will not (i) entitle any current 
or former employee or director of FESC or any ERISA Affiliate of FESC to 
severance pay, unemployment compensation or any similar payment, or (ii) 
accelerate the time of payment or vesting, or increase the amount, of any 
compensation due to any such current or former employee or director, or (iii) 
renew or extend the term of any agreement regarding compensation for any such 
current or former employee or director.

3.13         Properties

             FESC or one of the FESC Subsidiaries has good and marketable 
title free and clear of all liens, encumbrances, charges, defaults or 
equitable interests to all of the properties and assets, real and personal, 
which, individually or in the aggregate, are material to the business of FESC 
and its Subsidiaries taken as a whole, and which are reflected on the FESC 
Financial Statements as of June 30, 1997 or acquired after such date, except 
(i) liens for Taxes not yet due and payable, (ii) pledges to secure deposits 
and other liens incurred in the ordinary course of business, (iii) such 
imperfections of title, easements and encumbrances, if any, as are not 
material in character, amount or extent, (iv) dispositions and encumbrances 
for adequate consideration in the ordinary course of business and (v) to the 
extent such properties or assets are leased by FESC or any FESC Subsidiary. 
All leases pursuant to which FESC or any FESC Subsidiary, as lessee, leases 
real and personal property which, individually or in the aggregate, are 
material to the business of FESC and its Subsidiaries taken as a whole are 
valid and enforceable in accordance with their respective terms, except where 
the failure of such lease or leases to be valid and enforceable would not, 
individually or in the aggregate, have a Material Adverse Effect on FESC.

3.14         Loans

             (a)  Each loan reflected as an asset in the FESC Financial 
Statements (i) is evidenced by notes, agreements or other evidences of 
indebtedness which are true, genuine and what they purport to be, (ii) to the 
extent secured, has been secured by valid liens and security interests which 
have been perfected, and (iii) is the legal, valid and binding obligation of 
the obligor named therein, enforceable in accordance with its terms, subject 
to bankruptcy, insolvency, fraudulent conveyance and other laws of general 
applicability relating to or affecting creditors' rights and to general 
equity principles, in each case other than loans as to which the failure to 
satisfy the foregoing standards would not have a Material Adverse Effect on 
FESC.

             (b)  The allowance for loan losses reflected on the FESC 
Financial Statements, as of their respective dates, is in all material 
respects consistent with the requirements of generally accepted accounting 
principles to provide for reasonably anticipated losses with respect to 
FESC's loan portfolio based upon information reasonably available at the time.

                                      - 23 -




3.15         Tax Matters

             (a)  All federal, state, local and foreign Tax Returns required 
to be filed by or on behalf of FESC and each FESC Subsidiary have been timely 
filed or requests for extension have been timely filed and any such extension 
has been granted and has not expired, except where the failure to file timely 
such Tax Returns would not, in the aggregate, have a Material Adverse Effect 
on FESC.  All Tax Returns filed by FESC and each FESC Subsidiary are complete 
and accurate in all material respects.  All Taxes due in respect of the 
periods covered by the Tax Returns described in the first sentence of this 
Section 3.15(a) have been paid or adequate reserves have been established for 
the payment of such Taxes, except where any such failure to pay or establish 
adequate reserves would not, in the aggregate, have a Material Adverse Effect 
on FESC and, as of the Closing Date, all Taxes due in respect of any 
subsequent periods (or portions thereof) ending on or prior to the Closing 
Date will have been paid or adequate reserves will have been established for 
the payment thereof consistent with the past practices of FESC, except where 
any such failure to pay or establish adequate reserves would not, in the 
aggregate, have a Material Adverse Effect on FESC.  Except as Previously 
Disclosed, there is no outstanding or proposed material (i) audit 
examination, (ii) deficiency, or (iii) refund litigation with respect to Tax 
Returns filed or required to be filed by FESC or any FESC Subsidiary.  

             (b)  Except as Previously Disclosed, neither FESC nor any FESC 
Subsidiary has requested any extension of time within which to file any Tax 
Returns in respect of any fiscal year or portion thereof which have not since 
been filed.  Except as Previously Disclosed, there are currently no material 
agreements in effect with respect to FESC or any FESC Subsidiary to extend 
the period of limitations for the assessment or collection of any Tax.

             (c)  Except as Previously Disclosed, neither FESC nor any FESC 
Subsidiary is a party to any agreement providing for the allocation or 
sharing of, or indemnification for, Taxes.

             (d)  Except as Previously Disclosed, neither FESC nor any FESC 
Subsidiary is required to include in income any adjustment in any taxable 
period ending after the date hereof pursuant to Section 481(a) of the Code.

             (e)  Except as Previously Disclosed, neither FESC nor any FESC 
Subsidiary has entered into any material agreement with any taxing authority 
that will bind FESC or an affiliate thereof after the Closing Date.

             (f)  For purposes of this Section 3.15 only, "FESC Subsidiary" 
shall mean any corporation, joint venture or other entity in which FESC (a) 
owns, directly or indirectly, 50% or more of the outstanding voting 
securities or equity interests or (b) is a general partner.

3.16         Certain Contracts

             (a)  Except as Previously Disclosed, neither FESC nor any FESC 
Subsidiary is a party to, or is bound by, (i) any material contract required 

                                      - 24 -




to be filed by FESC under Item 601(b)(10) of Regulation S-K of the SEC or any 
agreement restricting in any material respect the nature of its current 
business activities or the geographic scope of its business activities, (ii) 
any agreement, indenture or other instrument relating to the borrowing of 
money by FESC or any FESC Subsidiary of an amount exceeding $100 million or 
the guarantee by FESC or any FESC Subsidiary of any such obligation, other 
than instruments relating to transactions entered into in the ordinary course 
and except as reflected in the FESC Financial Statements filed with the SEC 
prior to the date of this Agreement, (iii) any agreement, arrangement or 
commitment relating to the employment of a consultant who was formerly a 
director or executive officer or the employment, election, retention in 
office or severance of any present or former director or executive officer of 
FESC, or (iv) any contract, agreement or understanding with a labor union, in 
each case whether written or oral.

             (b)  Neither FESC nor any FESC Subsidiary is in default under 
any material agreement, commitment, arrangement, lease, insurance policy or 
other instrument whether entered into in the ordinary course of business or 
otherwise and whether written or oral, and there has not occurred any event 
that, with the lapse of time or giving of notice or both, would constitute 
such a default, except for such defaults which would not, individually or in 
the aggregate, have a Material Adverse Effect on FESC.

3.17         Labor Matters  

             With respect to their employees, neither FESC nor any FESC 
Subsidiary is a party to any labor agreement with any labor organization, 
group or association and has not engaged in any unfair labor practice.  Since 
January 1, 1997, and prior to the date hereof, FESC and the FESC Subsidiaries 
have not experienced any attempt by organized labor or its representatives to 
make FESC or any FESC Subsidiary conform to demands of organized labor 
relating to their employees or to enter into a binding agreement with 
organized labor that would cover the employees of FESC or any FESC 
Subsidiary.  To the knowledge of FESC, there is no unfair labor practice 
charge or other complaint by any employee or former employee of FESC or any 
FESC Subsidiary against any of them pending before any governmental agency 
arising out of FESC's or such FESC Subsidiary's activities, which charge or 
complaint (i) has a reasonable probability of an unfavorable outcome and (ii) 
in the event of an unfavorable outcome, would, individually or in the 
aggregate, have a Material Adverse Effect on FESC; there is no labor strike 
or labor disturbance pending or threatened against any of them; and neither 
FESC nor any FESC Subsidiary has experienced a work stoppage or other labor 
difficulty since January 1, 1997.

3.18         Brokers and Finders

             Neither FESC nor any FESC Subsidiary, nor any of their 
respective officers, directors or employees, has employed any broker, finder 
or financial advisor or incurred any liability for any fees or commissions in 
connection with the transactions contemplated herein or the Plan of Merger, 

                                      - 25 -




except for FESC's retention of Keefe, Bruyette & Woods, Inc. to perform certain
financial advisory services.

3.19         Certain Information

             The information relating to FESC and the FESC Subsidiaries to be 
provided by FESC to be contained in the Proxy Statement and the Registration 
Statement will not contain any untrue statement of a material fact or omit to 
state a material fact necessary to make the statements therein not 
misleading.  The Proxy Statement (except for such portions thereof that 
relate only to OBC or any of the OBC Subsidiaries) will comply in all 
material respects with the provisions of the Exchange Act and the rules and 
regulations thereunder.  The Registration Statement will comply in all 
material respects with the provisions of the Securities Act and the rules and 
regulations thereunder.

3.20         Tax Treatment

             As of the date of this Agreement, FESC knows of no reason 
relating to it or any of the FESC Subsidiaries which would reasonably cause 
it to believe that the Merger will not qualify as a tax-free reorganization 
under Section 368(a) of the Code.

3.21         OBC Shares

             As of the date hereof, neither FESC nor any of its affiliates 
owns beneficially more than 9.9% of the outstanding shares of OBC Common 
Stock.

                                      ARTICLE 4
                                      COVENANTS

4.1          Shareholders' Meeting
         
             FESC and OBC shall submit this Reorganization Agreement and the 
Plan of Merger and, in the case of FESC, the issuance of FESC Common Stock 
thereunder, to their respective shareholders for approval at special meetings 
to be held as soon as practicable.  Subject to the fiduciary duties of the 
respective boards of directors of OBC and FESC as determined by each after 
consultation with such board's counsel, the boards of directors of FESC and 
OBC shall recommend at the respective shareholders' meetings that the 
shareholders vote in favor of such approval.
    
4.2          Proxy Statement; Registration Statement

             As promptly as practicable after the date hereof, FESC and OBC 
shall cooperate in the preparation of the Proxy Statement to be mailed to the 
shareholders of OBC and FESC in connection with the Merger and to be filed by 
FESC as part of the Registration Statement.  FESC will advise OBC, promptly 
after it receives notice thereof, of the time when the Registration Statement 
or any post-effective amendment thereto has become effective or any 
supplement or amendment has been filed, of the issuance of any stop order, of 
the 

                                      - 26 -

 


suspension of qualification of the FESC Common Stock issuable in connection with
the Merger for offering or sale in any jurisdiction, or the initiation or threat
of any proceeding for any such purpose, or of any request by the SEC for the
amendment or supplement of the Registration Statement or for additional
information.  FESC shall take all actions necessary to register or qualify the
shares of FESC Common Stock to be issued in the Merger pursuant to all
applicable state "blue sky" or securities laws and shall maintain such
registrations or qualifications in effect for all purposes hereof.  FESC shall
apply for approval to list the shares of FESC Common Stock to be issued in the
Merger on the AMEX, subject to official notice of issuance, prior to the
Effective Date.

4.3          Applications

             As promptly as practicable after the date hereof, FESC shall 
submit any requisite applications for prior approval of, and notices with 
respect to, the transactions contemplated herein, in the Plan of Merger and 
in the Bank Merger Agreement (i) to the Federal Reserve Board pursuant to 
Sections 3 and 4 of the Bank Holding Company Act, Section 5(d)(3) of the 
Federal Deposit Insurance Act and the Bank Merger Act, (ii) to the Department 
of Banking pursuant to Sections 115 and 1603 of the Pennsylvania Banking 
Code, and (iii) to the New York Banking Board pursuant to Section 142 of the 
New York Banking Law, and the regulations promulgated thereunder, and each of 
the parties hereto shall, and they shall cause their respective subsidiaries 
to, submit any applications, notices or other filings to any other state or 
federal government agency, department or body the approval of which is 
required for consummation of the Merger and the Bank Merger.  OBC and FESC 
each represents and warrants to the other that all information concerning it 
and its directors, officers, shareholders and subsidiaries included (or 
submitted for inclusion) in any such application and furnished by it shall be 
true, correct and complete in all material respects.  

4.4          Best Efforts

             (a)  Subject to the terms and conditions of this Agreement, 
FESC, Merger Sub, and OBC shall each use its reasonable best efforts in good 
faith, and each of them shall cause its Subsidiaries to use their reasonable 
best efforts in good faith, to (i) furnish such information as may be 
required in connection with the preparation of the documents referred to in 
Sections 4.2 and 4.3 above, and (ii) take or cause to be taken all action 
necessary or desirable on its part so as to permit consummation of the Merger 
at the earliest possible date, including, without limitation, (1) obtaining 
the consent or approval of each individual, partnership, corporation, 
association or other business or professional entity whose consent or 
approval is required for consummation of the transactions contemplated 
hereby, provided that neither OBC nor any OBC Subsidiary shall agree to make 
any payments or modifications to agreements in connection therewith without 
the prior written consent of FESC, which consent shall not be unreasonably 
withheld and (2) requesting the delivery of appropriate opinions, consents 
and letters from its counsel and independent auditors.  Subject to the terms 
and conditions of this Agreement, no party hereto shall take or fail to take, 
or cause or permit 

                                      - 27 -

 


its Subsidiaries to take or fail to take, or to the best of its ability 
permit to be taken or omitted to be taken by any third persons, any action 
that would substantially impair the prospects of completing the Merger 
pursuant to this Reorganization Agreement and the Plan of Merger, that would 
materially delay such completion, or that would adversely affect the 
qualification of the Merger as a reorganization within the meaning of 
Section 368(a) of the Code; provided that nothing herein contained shall 
preclude FESC from exercising its rights under the Option Agreement.  In the 
event that either party has taken any action, whether before, on or after the 
date hereof, that would adversely affect such qualification, each party shall 
take such action as the other party may reasonably request to cure such 
effect to the extent curable without a Material Adverse Effect on either of 
the parties.

             (b)  OBC shall give prompt notice to FESC, and FESC shall give 
prompt notice to OBC, of (i) the occurrence, or failure to occur, of any 
event which occurrence or failure would be likely to cause any representation 
or warranty contained in this Agreement to be untrue or inaccurate in any 
material respect at any time from the date hereof to the Closing Date and 
(ii) any material failure of OBC or FESC, as the case may be, to comply with 
or satisfy any covenant, condition or agreement to be complied with or 
satisfied by it hereunder, and each party shall use all reasonable efforts to 
remedy such failure.

             (c)  Each party shall provide and shall request its auditors to 
provide the other party with such historical financial information regarding 
it (and related audit reports and consents) as the other party may reasonably 
request for securities disclosure purposes.

4.5          Investigation and Confidentiality

             OBC and FESC each will keep the other advised of all material 
developments relevant to its business and to consummation of the transactions 
contemplated herein and in the Plan of Merger.  FESC and OBC each may make or 
cause to be made such investigation of the financial and legal condition of 
the other as such party reasonably deems necessary or advisable in connection 
with the transactions contemplated herein and in the Plan of Merger, 
provided, however, that such investigation shall be reasonably related to 
such transactions and shall not interfere unnecessarily with normal 
operations.  FESC and OBC agree to furnish the other and the other's advisors 
with such financial data and other information with respect to its business 
and properties as such other party shall from time to time reasonably 
request.  No investigation pursuant to this Section 4.5 shall affect or be 
deemed to modify any representation or warranty made by, or the conditions to 
the obligations to consummate the Merger of, any party hereto.  Each party 
hereto shall hold all information furnished by the other party or any of such 
party's Subsidiaries or representatives pursuant to this Section 4.5 in 
confidence to the extent required by, and in accordance with, the provisions 
of the confidentiality agreement, dated October 1, 1997 between OBC and FESC 
(the "Confidentiality Agreement").  

                                      - 28 -



 
4.6          Press Releases

             OBC and FESC shall agree with each other as to the form and 
substance of any press release related to this Reorganization Agreement and 
the Plan of Merger or the transactions contemplated hereby or thereby, and 
shall consult each other as to the form and substance of other public 
disclosures related thereto, provided, however, that nothing contained herein 
shall prohibit any party, following notification to the other parties, from 
making any disclosure which is required by applicable law or AMEX or NASDAQ 
rules.

4.7          Actions Pending the Merger 

             (a)  Prior to the Closing Date, and except as otherwise provided 
for by this Reorganization Agreement, the Plan of Merger, the Option 
Agreement, or consented to or approved by FESC, OBC shall, and shall cause 
each of the OBC subsidiaries to, use its reasonable best efforts to preserve 
its properties, business and relationships with customers, employees and 
other persons.  
    
             (b)  OBC shall not, and shall not permit any of the OBC 
Subsidiaries to, except with the prior written consent of FESC and except as 
Previously Disclosed or expressly contemplated or permitted by this 
Agreement, the Plan of Merger, or the Option Agreement:

                  (1)  carry on its business other than in the usual, regular 
and ordinary course in substantially the same manner as heretofore conducted;

                  (2)  in the case of OBC only, declare, set aside, make or 
pay any dividend or other distribution in respect of its capital stock other 
than its regular quarterly cash dividends on OBC Common Stock in amounts not 
in excess of $.34 per share;

                  (3)  issue any shares of its capital stock or permit any 
treasury shares to become outstanding other than pursuant to the Option 
Agreement or Rights outstanding at the date hereof;          

                  (4)  incur any additional debt obligation or other 
obligation for borrowed money other than in the ordinary course of business 
consistent with past practice;          

                  (5)  issue, grant or authorize any Rights or effect any 
recapitalization, reclassification, stock dividend, stock split or like 
change in capitalization, or redeem, repurchase or otherwise acquire any 
shares of its capital stock, except as contemplated by Section 2.27 hereof 
and except for Trust Account Shares and DPC Shares (each as defined in the 
Plan of Merger);          

                  (6)  amend its articles or certificate of incorporation or 
association or by-laws; impose, or suffer the imposition, on any share of 

                                      - 29 -



 
stock of any OBC Subsidiary held by OBC of any lien, charge or encumbrance, 
or permit any such lien, charge or encumbrance to exist, except, in each 
case, for liens, charges and encumbrances which have been Previously 
Disclosed; 
    
                  (7)  merge with any other corporation, savings association 
or bank or permit any other corporation, savings association or bank to merge 
into it or consolidate with any other corporation, savings association or 
bank; other than through the acquisition of DPC Shares acquire control over 
any other firm, bank, corporation, savings association or organization or 
create any subsidiary;     

                  (8)  except in the ordinary course of business, waive or 
release any material right or cancel or compromise any material debt or 
claim;     

                  (9)  liquidate or sell or dispose of any assets or acquire 
any assets, in each case other than in the ordinary course of business; 
except as Previously Disclosed, make any capital expenditure in excess of 
$250,000 in any instance or $2,500,000 in the aggregate; or, except as 
Previously Disclosed, establish new branches or other similar facilities or 
enter into or modify any leases or other contracts relating thereto that 
involve annual payments by such party or any Subsidiary of such party that 
exceed $100,000 in any instance or $1,000,000 in the aggregate, except with 
respect to renewals of leases in the ordinary course of business;     

                  (10) increase the rate of compensation of, pay or agree to 
pay any bonus to, or provide any other employee benefit or incentive to, any 
of its directors, officers or employees except (i) in a manner consistent 
with past practice and (ii) for bonuses in respect of 1997 pursuant to the 
OBC 1987 Annual Incentive Bonus Plan (including without limitation the 
provisions thereof providing OBC with discretion in determining the amounts 
payable thereunder), provided, however, that in no event shall the aggregate 
amount paid pursuant to such plan in respect of 1997 exceed $1,500,000, 
consistent with the terms of such plan; enter into or modify any employment 
or severance contracts with any of its present or former directors, officers 
or employees; or enter into or substantially modify (except as may be 
required by applicable law) any pension, retirement, stock option, stock 
purchase, stock appreciation right, savings, profit sharing, deferred 
compensation, consulting, bonus, group insurance or other employee benefit, 
incentive or welfare contract, plan or arrangement, or any trust agreement 
related thereto, in respect of any of its directors, officers or other 
employees;     

                  (11) change its lending, investment, asset/liability 
management or other material banking policies in any material respect except 
as may be required by changes in applicable law;

                  (12) change its methods of accounting in effect at 
December 31, 1996, except as required by changes in generally accepted 
accounting principles concurred in by its independent certified public 
accountants, or change any of its methods of reporting income and deductions 
for federal income tax purposes from those employed in the preparation of its 

                                      - 30 -



 
federal income tax returns for the year ended December 31, 1996, except as 
required by law;
    
                  (13) authorize or permit any of its officers, directors, 
employees or agents to directly or indirectly solicit, initiate or encourage 
any inquiries relating to, or the making of any proposal which constitutes, a 
"takeover proposal" (as defined below), or, except to the extent legally 
required for the discharge of the fiduciary duties of its Board of Directors, 
recommend or endorse any takeover proposal, or participate in any discussions 
or negotiations, or provide third parties with any nonpublic information, 
relating to any such inquiry or proposal or otherwise facilitate any effort 
or attempt to make or implement a takeover proposal; provided, however, that 
OBC may communicate information about any such takeover proposal to its 
stockholders if, in the judgment of OBC's Board of Directors, based upon the 
advice of outside counsel, such communication is required under applicable 
law.  OBC will take all actions necessary or advisable to inform the 
appropriate individuals or entities referred to in the first sentence hereof 
of the obligations undertaken herein.  OBC will notify FESC immediately if any 
such inquiries or takeover proposals are received by, any such information is 
requested from, or any such negotiations or discussions are sought to be 
initiated or continued with, OBC, and OBC will promptly inform FESC in 
writing of all of the relevant details with respect to the foregoing.  As 
used in this Agreement, "takeover proposal" shall mean any tender or exchange 
offer, proposal for a merger, consolidation or other business combination 
involving OBC or any OBC Subsidiary or any proposal or offer to acquire in 
any manner a substantial equity interest in, or a substantial portion of the 
assets of, OBC or any OBC Subsidiary other than the transactions contemplated 
or permitted by this Agreement, the Plan of Merger and the Option Agreement; 
or     

                  (14) agree to do any of the foregoing.     

4.8          Certain Policies 

             Prior to the Effective Date, OBC shall, consistent with 
generally accepted accounting principles and on a basis mutually satisfactory 
to it and FESC, modify and change its loan, litigation and real estate  
valuation policies and practices (including loan classifications and levels 
of reserves) so as to be applied on a basis that is consistent with that of 
FESC; provided, however, that OBC shall not be obligated to take any such 
action pursuant to this Section 4.8 unless and until (i) FESC irrevocably 
acknowledges to OBC in writing that all conditions to its obligation to 
consummate the Merger have been satisfied and (ii) FESC irrevocably waives in 
writing any and all rights that it may have to terminate this Agreement and 
the Plan of Merger.     

4.9          Closing; Articles of Merger

             The transactions contemplated by this Reorganization Agreement 
and the Plan of Merger shall be consummated at a closing to be held at the 
offices of the law firm of Arnold & Porter, 399 Park Avenue, New York, New 
York  10022, on the first business day following satisfaction of the 

                                      - 31 -



 
conditions to consummation of the Merger set forth in Article 5 hereof (other 
than such conditions relating to the actions to be taken at the Closing) or 
such later date during such month in which such business day shall occur (or, 
if such business day shall occur within five days prior to the end of such 
month, during the next following month) thereafter as may be specified by 
FESC.  In connection with such Closing, Merger Sub and OBC shall execute a 
certificate of merger and shall cause such certificate to be delivered to the 
Delaware Secretary of State in accordance with Section 251(c) of the Delaware 
General Corporation Law.  The Merger shall be effective at the time and on 
the date specified in such certificate of merger.  

4.10         Affiliates

             OBC and FESC shall cooperate and use their best efforts to 
identify those persons who may be deemed to be "affiliates" of OBC within the 
meaning of Rule 145 promulgated by the Commission under the Securities Act. 
OBC shall use its best efforts to cause each person so identified to deliver 
to FESC, no later than 30 days prior to the Effective Date, a written 
agreement (which agreement shall be substantially in the form of Exhibit 4.10 
hereof).  
    
4.11         OBC Employees; Directors and Management; Indemnification

             (a)  On and after the Effective Date (or as soon thereafter as 
may be practicable), all persons who are employed by OBC and/or any of the 
OBC Subsidiaries on such date ("OBC Employees") shall be employed upon terms 
and conditions (including benefits) which in the aggregate are no less 
favorable with respect to their employment by FESC and its subsidiaries after 
the Effective Date than those generally afforded to other employees of FESC 
subsidiaries holding similar positions, subject to the terms and conditions 
under which those employee benefits are made available to such employees and 
provided that for purposes of determining eligibility for and vesting of such 
employee benefits only (and not for pension benefit accrual purposes) and, if 
applicable, for purposes of satisfying any waiting periods concerning 
"preexisting conditions" and the satisfaction of any "copayment" or 
deductible requirements, service with OBC or a OBC Subsidiary or any 
predecessor thereto prior to the Effective Date shall be treated as service 
with an "employer" to the same extent as if such persons had been employees 
of FESC, and provided further that this Section 4.11(a) shall not be 
construed (i) to limit the ability of FESC and its affiliates to terminate 
the employment of any employee or to review employee benefits programs from 
time to time and to make such changes as they deem appropriate or (ii) to 
require FESC or its affiliates to provide employees or former employees of 
OBC or any of its Subsidiaries with post-retirement medical benefits more 
favorable than those provided to new hires at FESC.  FESC agrees to honor, or 
to cause the appropriate FESC Subsidiary to honor, in accordance with their 
terms all employment, severance and employee benefit plans, contracts, 
agreements, arrangements, and understandings Previously Disclosed, provided, 
however, that the foregoing shall not prevent FESC from amending or 
terminating any such plan, contract, agreement, arrangement or understanding 
in accordance with its terms.  The continued coverage of the OBC Employees 
under the employee benefit plans 

                                      - 32 -




maintained by OBC and/or the OBC Subsidiaries immediately prior to the 
Effective Date (the "OBC Plans") during a transition period shall be deemed 
to provide the OBC Employees with benefits that are no less favorable than 
those offered to other employees of FESC and its Subsidiaries, provided that 
after the Effective Date there is no material reduction (determined on an 
overall basis) in the benefits provided under the OBC Plans.  No provision of 
this Section 4.11(a) shall create any third party beneficiary rights in any 
employee or former employee of OBC (including any beneficiary or dependent 
thereof) in respect of continued employment (or resumed employment) or any 
other matter.

             (b)  To the extent that FESC has agreed to honor, or to cause 
the appropriate FESC Subsidiary to honor, the employee benefit and 
compensation plans, agreements and arrangements described in the preceding 
paragraph (a), FESC acknowledges that the Merger constitutes a "Change in 
Control" for all purposes pursuant to any such plans, agreements and 
arrangements.  In addition, FESC acknowledges that, with respect to the 
employment and severance agreements listed in Schedule 4.11(b) only (the 
"Listed Agreements"), in light of FESC's plans relating to management 
assignments and responsibilities with respect to the business of OBC from and 
after the Effective Time, each employee who is a party to any such contract 
will, upon consummation of the Merger, have "Good Reason" to terminate 
employment thereunder.  FESC also agrees to provide, or to cause the 
appropriate FESC Subsidiary to provide, as mutually agreed to by FESC and 
OBC, severance benefits and retention bonuses to OBC Employees other than OBC 
Employees who are parties to the Listed Agreements.     

             (c)  FESC's Board of Directors shall take all requisite action 
to elect as directors of FESC as of the Effective Date Mr. Bennett and four 
other individuals selected by the Board of Directors of OBC from among 
persons who are members of the Board of Directors of OBC prior to the 
Effective Date, provided that each of such four individuals shall be 
reasonably acceptable to FESC, and to elect Mr. Bennett as Chairman of FESC's 
Board of Directors and a member of the Executive Committee of FESC's Board of 
Directors as of the Effective Date and FESC shall cause M&T Bank's Board of 
Directors to take all requisite action to elect as directors of M&T Bank Mr. 
Bennett and four other individuals selected by the Board of Directors of OBC 
from among persons who are members of the Board of Directors of OBC prior to 
the Effective Date, provided that each of such four individuals shall be 
reasonably acceptable to FESC and to elect Mr. Bennett as Vice Chairman of 
M&T Bank as of the Effective Date.      

             (d)  In the event of any threatened or actual claim, action, 
suit, proceeding or investigation, whether civil, criminal or administrative, 
including, without limitation, any such claim, action, suit, proceeding or 
investigation in which any person who is now, or has been at any time prior 
to the date of this Agreement, or who becomes prior to the Effective Date, a 
director or officer of OBC (the "Indemnified Parties") is, or is threatened 
to be, made a party based in whole or in part on, or arising in whole or in 
part out of, or pertaining to (i) the fact that he is or was a director, 
officer or employee of OBC, any of the OBC Subsidiaries or any of their 
respective 

                                      - 33 -



 
predecessors or (ii) this Agreement, the Plan of the Merger, the Option 
Agreement or any of the transactions contemplated hereby or thereby, whether 
in any case asserted or arising before or after the Effective Date, the 
parties hereto agree to cooperate and use their best efforts to defend 
against and respond thereto.  It is understood and agreed that after the 
Effective Date, FESC shall indemnify and hold harmless, as and to the fullest 
extent permitted by law, each such Indemnified Party against any losses, 
claims, damages, liabilities, costs, expenses (including reasonable 
attorney's fees and expenses in advance of the final disposition of any 
claim, suit, proceeding or investigation to each Indemnified Party to the 
fullest extent permitted by law upon receipt of any undertaking required by 
applicable law), judgments, fines and amounts paid in settlement in 
connection with any such threatened or actual claim, action, suit, proceeding 
or investigation, and in the event of any such threatened or actual claim, 
action, suit, proceeding or investigation (whether asserted or arising before 
or after the Effective Date), the Indemnified Parties may retain counsel 
reasonably satisfactory to them after consultation with FESC; provided, 
however, that (1) FESC shall have the right to assume the defense thereof and 
upon such assumption FESC shall not be liable to any Indemnified Party for 
any legal expenses of other counsel or any other expenses subsequently 
incurred by any Indemnified Party in connection with the defense thereof, 
except that if FESC elects not to assume such defense or counsel for the 
Indemnified Parties reasonably advises the Indemnified Parties that there are 
issues which raise conflicts of interest between FESC and the Indemnified 
Parties, the Indemnified Parties may retain counsel reasonably satisfactory 
to them after consultation with FESC, and FESC shall pay the reasonable fees 
and expenses of such counsel for the Indemnified Parties, (2) FESC shall be 
obligated pursuant to this paragraph to pay for only one firm of counsel for 
all Indemnified Parties, (3) FESC shall not be liable for any settlement 
effected without its prior written consent (which consent shall not be 
unreasonably withheld) and (4) FESC shall have no obligation hereunder to any 
Indemnified Party when and if a court of competent jurisdiction shall 
ultimately determine, and such determination shall have become final and 
nonappealable, that indemnification of such Indemnified Party in the manner 
contemplated hereby is prohibited by applicable law.  Any Indemnified Party 
wishing to claim Indemnification under this Section 4.11(d), upon learning of 
any such claim, action, suit, proceeding or investigation, shall promptly 
notify FESC thereof, provided that the failure of any Indemnified Party to so 
notify FESC shall not relieve it of its obligations hereunder except (and 
only) to the extent that such failure materially prejudices FESC.  FESC's 
obligations under this Section 4.11(d) continue in full force and effect for 
a period of six (6) years from the Effective Date; provided, however, that 
all rights to indemnification in respect of any claim (a "Claim") asserted or 
made within such period shall continue until the final disposition of such 
Claim. 

             (e)  FESC agrees that all rights to indemnification and all 
limitations on liability existing in favor of the directors, officers and 
employees of OBC and its Subsidiaries (the "Covered Parties") as provided in 
their respective Certificates of Incorporation, By-Laws or similar governing 
documents as in effect as of the date of this Agreement with respect to 
matters occurring prior to the Effective Date shall survive the Merger and 

                                      - 34 -




shall continue in full force and effect, and shall be honored by such 
entities or their respective successors as if they were the indemnifying 
party thereunder, without any amendment thereto, for a period of six (6) 
years from the Effective Date; provided, however, that all rights to 
indemnification in respect of any Claim asserted or made within such period 
shall continue until the final disposition of such Claim; provided, further, 
however, that nothing contained in this Section 4.11(e) shall be deemed to 
preclude the liquidation, consolidation or merger of OBC or any OBC 
Subsidiary, in which case all of such rights to indemnification and 
limitations on liability shall be deemed to so survive and continue 
notwithstanding any such liquidation, consolidation or merger.

             (f)  FESC, from and after the Effective Date will use its best 
efforts directly or indirectly to cause the persons who served as directors 
or officers of OBC on or before the Effective Date to be covered by OBC's 
existing directors' and officers' liability insurance policy (provided that 
FESC may substitute therefor policies of at least the same coverage and 
amounts containing terms and conditions which are not less advantageous than 
such policy) but in no event shall any insured person be entitled under this 
Section 4.11(f) to insurance coverage more favorable than that provided to 
him or her in such capacities at the date hereof with respect to acts or 
omissions resulting from their service as such on or prior to the Effective 
Date.  Such insurance coverage, if reasonably available at a reasonable cost 
relative to the coverage obtained, shall commence on the Effective Date and 
will be provided for a period of no less than three (3) years after the 
Effective Date; provided, however, that in no event shall FESC be required to 
expend more than 150% of the current amount expended by OBC (the "Insurance 
Amount") to maintain or procure insurance coverage pursuant hereto and 
further provided that the Insurance Amount shall be deemed a reasonable cost 
for purposes of this Section 4.11(f).  OBC agrees to renew any such existing 
insurance or to purchase any "discovery period" insurance provided for 
thereunder at FESC's request.

             (g)    In the event FESC or any of its successors or assigns 
(i) consolidates with or merges into any other person and shall not be the 
continuing or surviving corporation or entity of such consolidation or 
merger, or (ii) transfers or conveys all or substantially all of its 
properties and assets to any person, then, and in each such case, to the 
extent necessary, proper provision shall be made so that the successors and 
assigns of FESC assume the obligations set forth in this section.     

             (h)  The provisions of Section 4.11 (d), (e), (f) and (g) are 
intended to be for the benefit of, and shall be enforceable by, each 
Indemnified Party and their respective heirs and representatives.  The 
provisions of Section 4.11(b) referring to the Listed Agreements are intended 
to be for the benefit of, and shall be enforceable by, those individuals who 
are parties thereto and their respective heirs and representatives.

                                      - 35 -

 


4.12         OBC Subsidiaries

             OBC undertakes and agrees that, if so requested by FESC, it 
shall take all necessary action to facilitate the merger of OBC Subsidiaries 
with subsidiaries of FESC or the dissolution of such OBC Subsidiaries 
effective at or after the Effective Date; provided, however, that in no event 
shall the Closing be delayed in order to facilitate any such merger or 
dissolution and provided further, however, that OBC shall not be required to 
take any action that could adversely affect the qualification of the Merger 
as a reorganization within the meaning of Section 368(a) of the Code as 
determined in good faith by counsel to OBC.

4.13         Dividends

         After the date of this Agreement, each of FESC and OBC shall 
coordinate with the other the declaration of any dividends in respect of FESC 
Common Stock and OBC Common Stock and the record dates and payment dates 
relating thereto, it being the intention of the parties hereto that holders 
of FESC Common Stock or OBC Common Stock shall not receive two dividends, or 
fail to receive one dividend, for any single calendar quarter with respect to 
their shares of FESC Common Stock and/or OBC Common Stock and any shares of 
FESC Common Stock any such holder receives in exchange therefor in the 
Merger. 

4.14         Advisory Boards     

             (a)  Unless prohibited by applicable law, promptly following the 
Effective Date, FESC shall cause, for a period of not less than twenty-four 
months after the Effective Date, those persons who are members of the Board 
of Directors of OBC on the Effective Date (other than any such persons who 
shall be appointed to the Board of Directors of FESC pursuant to Section 4.11(c)
hereof) to be appointed or elected as members of the newly-formed Syracuse 
Division of M&T Bank's Advisory Board, which shall meet not less frequently 
than 10 times per year and the function of which shall be to advise M&T Bank 
on deposit and lending activities in OnBank's former market area.  Each such 
advisory director shall be paid the annual retainer and meeting attendance 
fees set forth in Schedule 4.14(a) hereof; provided, however, that 
notwithstanding anything else in this paragraph (a), no attendance fees shall 
be paid for meetings not actually attended and M&T Bank shall have no 
obligation to continue the services of any advisory director who acts in a 
manner detrimental to M&T Bank.

             (b)  Unless prohibited by applicable law, promptly following the 
Effective Date, FESC shall cause, for a period of not less than twenty-four 
months after the Effective Date, those persons who are members of the Board 
of Directors of Franklin First on the Effective Date (other than any such 
persons who shall be appointed to the Board of Directors of FESC pursuant to 
Section 4.11(c) hereof) to be appointed or elected as members of the 
newly-formed Pennsylvania Division of M&T Bank's Advisory Board, which shall 
meet not less frequently than 10 times per year and the function of which 
shall be to advise M&T Bank on deposit and lending activities in Franklin 
First's former market area.  Each such advisory director shall be paid the 
annual retainer and 

                                      - 36 -

 


meeting attendance fees set forth in Schedule 4.14(b) hereof; provided, 
however, that notwithstanding anything else in this paragraph (b), no 
attendance fees shall be paid for meetings not actually attended and M&T Bank 
shall have no obligation to continue the services of any advisory director 
who acts in a manner detrimental to M&T Bank.
                                           
                                      ARTICLE 5.
                                 CONDITIONS PRECEDENT

5.1          Conditions Precedent - FESC, 
             Merger Sub and OBC

             The respective obligations of the parties to effect the Merger 
shall be subject to satisfaction or waiver of the following conditions at or 
prior to the Closing Date:
    
             (a)  All corporate action necessary to authorize the execution, 
delivery and performance of this Reorganization Agreement and the Plan of 
Merger and consummation of the transactions contemplated hereby and thereby 
shall have been duly and validly taken;

             (b)  The parties hereto shall have received all regulatory 
approvals required or mutually deemed necessary in connection with the 
transactions contemplated by this Reorganization Agreement, the Plan of 
Merger and the Bank Merger Agreement, all notice periods and waiting periods 
required after the granting of any such approvals shall have passed and all 
conditions contained in any such approval required to have been satisfied 
prior to consummation of such transactions shall have been satisfied, 
provided, however, that no such approval shall have imposed any condition or 
requirement which, in the reasonable opinion of the Board of Directors of 
FESC or OBC so materially and adversely affects the anticipated economic and 
business benefits to FESC or OBC, respectively, of the transactions 
contemplated by this Agreement as to render consummation of such transactions 
inadvisable;

             (c)  The Registration Statement (including any post-effective 
amendment thereto) shall be effective under the Securities Act, and no 
proceeding shall be pending or threatened by the Commission to suspend the 
effectiveness of such Registration Statement, and FESC shall have received 
all state securities or "Blue Sky" permits or other authorizations, or 
confirmations as to the availability of an exemption from registration 
requirements as may be necessary;
    
             (d)  To the extent that any lease, license, loan, financing 
agreement or other contract or agreement to which OBC or any OBC Subsidiary 
is a party requires the consent of or waiver from the other party thereto as 
a result of the transactions contemplated by this Agreement, such consent or 
waiver shall have been obtained, unless the failure to obtain such consents 
or waivers, individually or in the aggregate, would not have a Material 
Adverse Effect on OBC; 

                                      - 37 -




             (e)  None of the parties hereto shall be subject to any order, 
decree or injunction of a court or agency of competent jurisdiction which 
enjoins or prohibits the consummation of the transactions contemplated by 
this Reorganization Agreement and the Plan of Merger;

             (f)  The shares of FESC Common Stock which shall be issued in 
the Merger shall have been approved for listing on the AMEX, subject to 
official notice of issuance;     

             (g)  FESC and OBC shall have received an opinion of Arnold & 
Porter, in form and substance reasonably satisfactory to FESC and OBC, dated 
as of the Effective Date, substantially to the effect that, on the basis of 
facts, representations and assumptions set forth in such opinion which are 
consistent with the state of facts existing on the Effective Date, the Merger 
will be treated for federal income tax purposes as a reorganization or part 
of a reorganization within the meaning of Section 368(a) of the Code, OBC and 
FESC will each be a party to such reorganization within the meaning of 
Section 368(b) of the Code and that accordingly:     

             (i)  No gain or loss will be recognized by FESC, Merger Sub or 
OBC as a result of the Merger;     

             (ii)  No gain or loss will be recognized by OBC stockholders 
with respect to shares of FESC Common Stock received in exchange for all of 
their shares of OBC Common Stock;     

            (iii)  The gain, if any, realized by OBC stockholders who receive 
FESC Common Stock and cash (other than cash in lieu of a fractional share 
interest of FESC Common Stock) in exchange for their shares of OBC Common 
Stock, will be recognized by each such shareholder, but in an amount not in 
excess of the amount of cash received.  If the exchange has the effect of the 
distribution of a dividend, then the amount of the gain recognized shall be 
treated as a dividend.  No loss will be recognized by such an OBC stockholder 
on the exchange;     

             (iv)  Cash received by an OBC stockholder who receives solely 
cash in exchange for his or her shares of OBC Common Stock will be treated as 
having been received by such stockholder as a distribution in redemption of 
his or her shares of OBC Common Stock;     

             (v)  Each OBC stockholder's aggregate tax basis in any shares of 
FESC Common Stock received in the transaction will be the same as the 
aggregate tax basis of the shares of OBC Common Stock such shareholder 
surrendered in exchange therefor, decreased by the amount of any cash 
received by the stockholder and increased by the amount which was treated as 
a dividend and any gain recognized (not including any portion which was 
treated as a dividend) by the stockholder in the exchange; and     

             (vi)  Each OBC stockholder's holding period in any shares of FESC 
Common Stock received in the transaction will, in each instance, include the 
period during which the shares of OBC Common Stock surrendered in exchange 

                                      - 38 -




therefor were held, provided that such shares of OBC Common Stock were held 
as capital assets by the stockholder on the Effective Date.

             In rendering the opinion described in this subsection (g), 
Arnold & Porter will rely on representations and facts as provided by FESC 
and OBC, including without limitation the standard representations set forth 
in Revenue Procedure 86-42, 1986-2 C.B. 722.

5.2          Conditions Precedent - OBC
         
             The obligations of OBC to effect the Merger shall be subject to 
satisfaction of the following additional conditions at or prior to the 
Closing Date unless waived by OBC pursuant to Section 6.4 hereof:

             (a)  The representations and warranties of FESC and Merger Sub 
set forth in Article 3 hereof shall be true and correct in all material 
respects as of the date of this Reorganization Agreement and as of the 
Closing Date as though made on and as of the Closing Date (or on the date 
when made in the case of any representation and warranty which specifically 
relates to an earlier date), except as otherwise contemplated by this 
Reorganization Agreement or consented to in writing by OBC; provided, 
however, that (i) in determining whether or not the condition contained in 
this paragraph (a) shall be satisfied, no effect shall be given to any 
exceptions in such representations and warranties relating to materiality or 
Material Adverse Effect and (ii) the condition contained in this paragraph 
(a) shall be deemed to be satisfied unless the failure of such 
representations and warranties to be so true and correct constitute, 
individually or in the aggregate, a Material Adverse Effect on FESC;     

             (b)  FESC and Merger Sub shall have in all material respects 
performed all obligations and complied with all covenants required by this 
Reorganization Agreement and the Plan of Merger to be performed or complied 
with at or prior to the Closing Date;     

             (c)  Each of FESC and Merger Sub shall have delivered to OBC a 
certificate, dated the Closing Date and signed by its respective Chairman, 
President, Executive Vice President or Senior Vice President to the effect 
that the conditions set forth in paragraphs (a) and (b) of this section have 
been satisfied;     

             (d)  OBC shall have received from Price Waterhouse letters dated 
not more than five days prior to (i) the effective date of the Registration 
Statement and (ii) the Closing Date, with respect to certain financial 
information regarding FESC, each in form and substance which is customary in 
transactions of the nature contemplated by this Agreement; and     

             (e)  OBC shall have received the opinions of the General Counsel 
of FESC or Arnold & Porter dated the Closing Date, as to the matters 
specified in Exhibit 5.2(e) hereto.

                                      - 39 -

 


5.3          Conditions Precedent - FESC and Merger Sub
         
             The respective obligations of FESC and Merger Sub to effect the 
Merger shall be subject to satisfaction of the following additional 
conditions at or prior to the Closing Date unless waived by FESC pursuant to 
Section 6.4 hereof:     

             (a)  The representations and warranties of OBC set forth in 
Article 2 hereof shall be true and correct in all material respects as of the 
date of this Reorganization Agreement and as of the Closing Date as though 
made on and as of the Closing Date (or on the date when made in the case of 
any representation and warranty which specifically relates to an earlier 
date), except as otherwise contemplated by this Reorganization Agreement or 
consented to in writing by FESC; provided, however, that (i) in determining 
whether or not the condition contained in this paragraph (a) shall be 
satisfied, no effect shall be given to any exceptions in such representations 
and warranties relating to materiality or Material Adverse Effect and (ii) 
the condition contained in this paragraph (a) shall be deemed to be satisfied 
unless the failure of such representations and warranties to be so true and 
correct constitute, individually or in the aggregate, a Material Adverse 
Effect on OBC;     

             (b)  OBC shall have in all material respects performed all 
obligations and complied with all covenants required by this Reorganization 
Agreement and the Plan of Merger to be performed or complied with at or prior 
to the Closing Date;     

             (c)  OBC shall have delivered to FESC and Merger Sub a 
certificate, dated the Closing Date and signed by its Chairman, President and 
Chief Executive Officer or any Executive Vice President to the effect that 
the conditions set forth in paragraphs (a) and (b) of this section have been 
satisfied;     

             (d)  FESC shall have received from KPMG Peat Marwick letters 
dated not more than five days prior to (i) the effective date of the 
Registration Statement and (ii) the Closing Date, with respect to certain 
financial information regarding OBC, each in form and substance which is 
customary in transactions of the nature contemplated by this Agreement;     

             (e)  FESC and Merger Sub shall have received opinions of 
Skadden, Arps, Slate, Meagher & Flom, LLP, dated the Closing Date, as to the 
matters specified in Exhibit 5.3(e) hereto; and   

             (f)  Dissenters' rights shall not have been exercised with 
respect to more than 10% of the outstanding shares of OBC Common Stock.

                                      - 40 -



 
                                     ARTICLE 6.
                          TERMINATION, WAIVER AND AMENDMENT
                                     

6.1          Termination

             This Reorganization Agreement and the Plan of Merger may be 
terminated, either before or after approval by the shareholders of FESC and 
OBC:

             (a)  At any time on or prior to the Effective Date, by the 
mutual consent in writing of the parties hereto;     

             (b)  At any time on or prior to the Closing Date, by FESC in 
writing, if OBC has, or by OBC in writing, if FESC or Merger Sub has, in any 
material respect, breached (i) any covenant or agreement contained herein or 
in the Plan of Merger or (ii) any representation or warranty contained 
herein, and in either case if (x) such breach has not been cured by the 
earlier of 30 days after the date on which written notice of such breach is 
given to the party committing such breach or the Closing Date and (y) such 
breach would entitle the non-breaching party not to consummate the 
transactions contemplated hereby under Article V hereof;     

             (c)  At any time, by any party hereto in writing, if the 
applications for prior approval referred to in Section 4.3 hereof have been 
denied, and the time period for appeals and requests for reconsideration has 
run, or if any governmental entity of competent jurisdiction shall have 
issued a final nonappealable order enjoining or otherwise prohibiting the 
Merger;     

             (d)  At any time, by any party hereto in writing, if the 
shareholders of FESC or OBC do not approve the transactions contemplated 
herein at the special meetings duly called for that purpose; or     

             (e)  By any party hereto in writing, if the Closing Date has not 
occurred by the close of business on September 30, 1998, unless the failure 
of the Closing to occur by such date shall be due to the failure of the party 
seeking to terminate this Agreement to perform or observe the covenants and 
agreements set forth herein.     

             (f)  By OBC, upon the execution by OBC of a definitive agreement 
relating to a takeover proposal (as defined in Section 4.7(b)(13)), provided 
that (i) OBC shall have complied with its obligations under Section 4.7(b)(13) 
hereof, (ii) the Board of Directors of OBC shall have determined, after 
having received the advice of outside legal counsel to OBC and the advice of 
OBC's financial advisor, that such action is necessary for the Board of 
Directors to act in a manner consistent with its fiduciary duties under 
applicable law and (iii) concurrent with its notification of termination, OBC 
shall have made an irrevocable and unconditional offer to FESC in writing to 
repurchase the Option (as defined in the Option Agreement) from FESC at any 
time, within 30 days following the date of such offer, at a price equal to 
the amount by which (A) the Market/Offer Price (as defined below) exceeds (B) 
the Option Price (as defined in the Option Agreement), multiplied by the 
number of shares 

                                      - 41 -




for which the Option may then be exercised (subject to the limitation set 
forth in Section 15 of the Option Agreement), with an undertaking to effect 
such repurchase by wire transfer of immediately available funds to an account 
designated by FESC within two business days following receipt of written 
notice from FESC pursuant to this Section 6.1(f) of its election to tender 
the Option to OBC for repurchase and the applicable repurchase price.  The 
term "Market/Offer Price" shall mean the highest of (i) the price per share 
of OBC Common Stock at which a tender offer or exchange offer therefor has 
been made, (ii) the price per share of OBC Common Stock to be paid by any 
third party pursuant to an agreement with OBC, (iii) the highest closing 
price for shares of OBC Common Stock within the six-month period immediately 
preceding the date FESC gives notice of the required repurchase of the Option 
in accordance with this Section 6.1(f), or (iv) in the event of a sale of 
all or a substantial portion of OBC's assets, the sum of the price paid in 
such sale for such assets and the current market value of the remaining 
assets of OBC as determined by a nationally recognized investment banking 
firm selected by FESC, and reasonably acceptable to OBC, divided by the 
number of shares of OBC Common Stock outstanding at the time of such sale.  
In determining the Market/Offer Price, the value of consideration other than 
cash shall be determined by a nationally recognized investment banking firm 
selected by the FESC, and reasonably accepted to OBC. 

6.2          Effect of Termination          

             In the event this Reorganization Agreement and the Plan of 
Merger is terminated pursuant to Section 6.1 hereof, this Agreement and the 
Plan of Merger shall become void and have no effect, except that (i) the 
provisions relating to confidentiality and expenses set forth in Sections 4.5 
and 7.1 hereof, respectively, shall survive any such termination and (ii) a 
termination pursuant to Section 6.1(b)(i) or (b)(ii) shall not relieve the 
breaching party from liability for an uncured willful breach of such covenant 
or agreement or representation or warranty giving rise to such termination.

6.3          Survival of Representations, Warranties
             and Covenants
         
             All representations, warranties and covenants in this 
Reorganization Agreement and the Plan of Merger or in any instrument 
delivered pursuant hereto or thereto shall expire on, and be terminated and 
extinguished at, the Effective Date other than covenants that by their terms 
are to survive or be performed after the Effective Date, provided that no 
such representations, warranties or covenants shall be deemed to be 
terminated or extinguished so as to deprive FESC, Merger Sub or OBC (or any 
director, officer or controlling person thereof) of any defense in law or 
equity which otherwise would be available against the claims of any person, 
including, without limitation, any shareholder or former shareholder of 
either FESC or OBC, the aforesaid representations, warranties and covenants 
being material inducements to the consummation by FESC, Merger Sub and OBC of 
the transactions contemplated herein.

                                      - 42 -




6.4          Waiver

             Except with respect to any required shareholder or regulatory 
approval, FESC and OBC, respectively, by written instrument signed by an 
executive officer of such party, may at any time (whether before or after 
approval of this Reorganization Agreement and the Plan of Merger by the 
shareholders of FESC and OBC) extend the time for the performance of any of 
the obligations or other acts of OBC, on the one hand, or FESC or Merger Sub, 
on the other hand, and may waive (i) any inaccuracies of such parties in the 
representations or warranties contained in this Agreement, the Plan of Merger 
or any document delivered pursuant hereto or thereto, (ii) compliance with 
any of the covenants, undertakings or agreements of such parties, or 
satisfaction of any of the conditions precedent to its obligations, contained 
herein or in the Plan of Merger or (iii) the performance by such parties of 
any of its obligations set out herein or therein; provided, however, that no 
such waiver executed after approval of this Reorganization Agreement and the 
Plan of Merger by the shareholders of FESC or OBC shall change the number of 
shares of FESC Common Stock into which each share of OBC Common Stock shall 
be converted pursuant to the Merger.

6.5          Amendment or Supplement

             This Reorganization Agreement and the Plan of Merger may be 
amended or supplemented at any time only by mutual agreement of the parties 
hereto or thereto.  Any such amendment or supplement must be in writing and 
approved by their respective boards of directors and/or officers authorized 
thereby and shall be subject to the proviso in Section 6.4 hereof.  
                                           
                                      ARTICLE 7.
                                    MISCELLANEOUS


7.1          Expenses
         
             Each party hereto shall bear and pay all costs and expenses 
incurred by it in connection with the transactions contemplated in this 
Reorganization Agreement, including fees and expenses of its own financial 
consultants, accountants and counsel, except that FESC and OBC each shall 
bear and pay 50% of all printing and mailing costs and filing fees associated 
with the Registration Statement and the Proxy Statement. 

7.2          Entire Agreement 
         
             This Reorganization Agreement, the Plan of Merger and the Option 
Agreement contain the entire agreement between the parties with respect to 
the transactions contemplated hereunder and thereunder and supersede all 
prior arrangements or understandings with respect thereto, written or oral, 
other than documents referred to herein or therein and the Confidentiality 
Agreement.  The terms and conditions of this Reorganization Agreement and the 
Plan of Merger shall inure to the benefit of and be binding upon the parties 
hereto and thereto and their respective successors.  Except as specifically 
set forth herein, or in the Plan of Merger, nothing in this Reorganization 

                                      - 43 -




Agreement or the Plan of Merger, expressed or implied, is intended to confer 
upon any party, other than the parties hereto and thereto, and their 
respective successors, any rights, remedies, obligations or liabilities.  
This Reorganization Agreement and the Plan of Merger, taken together, shall 
constitute a plan of reorganization within the meaning of Section 368 of the 
Code.

7.3          No Assignment

             No party hereto may assign any of its rights or obligations 
under this Reorganization Agreement to any other person.

7.4          Notices

             All notices or other communications which are required or 
permitted hereunder shall be in writing and sufficient if delivered 
personally or sent by facsimile transmission or overnight express or by 
registered or certified mail, postage prepaid, addressed as follows:

             If to OBC:

             ONBANCorp, Inc.
             101 South Salina Street
             Syracuse, New York  13202 
             Attention:  Robert J. Bennett 
                  Chairman, President and 
                  Chief Executive Officer
             Facsimile No.:  315-424-4085
             
             With a required copy to:
             
             Skadden, Arps, Slate, Meagher & Flom LLP 
             919 Third Avenue
             New York, New York  10022
             Attention:  William S. Rubenstein, Esquire 
             Facsimile No.:  212-735-2000

             If to FESC or Merger Sub:

             First Empire State Corporation
             One M&T Plaza
             Buffalo, New York  14240
             Attention:  Michael P. Pinto
                         Executive Vice President and 
                         Chief Financial Officer
             Facsimile No.:  716-842-5220
             
                                      - 44 -
 



             With a required copy to:
     
             First Empire State Corporation
             One M&T Plaza
             Buffalo, New York  14240
             Attention:  Richard A. Lammert, Esquire 
                         Senior Vice President and 
                         General Counsel
             Facsimile No.:  716-842-5376

             and to:

             Arnold & Porter
             555 Twelfth Street, N.W.
             Washington, D.C.  20004
             Attention:  Steven Kaplan, Esquire 
             Facsimile No.:  202-942-5999

7.5          Interpretation

             The captions contained in this Reorganization Agreement are for 
reference purposes only and are not part of, and shall not affect in any way 
the meaning or interpretation of, this Reorganization Agreement. 

7.6          Counterparts          

             This Reorganization Agreement may be executed in any number of 
counterparts, and each such counterpart shall be deemed to be an original 
instrument, but all such counterparts together shall constitute but one 
agreement. 

7.7          Governing Law          

             This Reorganization Agreement shall be governed by and construed 
in accordance with the laws of the State of New York applicable to agreements 
made and entirely to be performed within such jurisdiction, except to the 
extent federal law may be applicable.

                                      - 45 -







             IN WITNESS WHEREOF, the parties hereto, intending to be legally 
bound hereby, have caused this Reorganization Agreement to be executed in 
counterparts by their duly authorized officers and their corporate seal to be 
hereunto affixed and attested by their officers thereunto duly authorized, 
all as of the day and year first above written.          

                                              FIRST EMPIRE STATE CORPORATION  

                                              By 
                                                 ------------------------
                                                 Richard A. Lammert 
                                                 Senior Vice President
                                                   and General Counsel

                                              OLYMPIA FINANCIAL CORP. 

                                              By      
                                                -------------------------
                                                Richard A. Lammert 
                                                Secretary          

                                              ONBANCORP, INC. 

                                              By
                                                -------------------------
                                                Robert J. Bennett 
                                                Chairman, President 
                                                   and Chief Executive Officer
 


                                      - 46 -


                                   Annex A

                                   FORM OF 
                        AGREEMENT AND PLAN OF MERGER OF
                          OLYMPIA FINANCIAL CORP. 
                        WITH AND INTO ONBANCORP, INC.


    AGREEMENT AND PLAN OF MERGER ("Plan of Merger") dated as of October 28,
1997, by and between ONBANCORP, INC. ("OBC"), a Delaware corporation having its
principal executive office at 101 South Salina Street, Syracuse, New York 13202
and OLYMPIA FINANCIAL CORP. ("Merger Sub"), a Delaware corporation having its
principal executive office at One M&T Plaza, Buffalo, New York, 14240, and
joined in by FIRST EMPIRE STATE CORPORATION ("FESC"), a New York corporation
having its principal executive office at One M&T Plaza, Buffalo, New York 14240.
 
                                   WITNESSETH
 
    WHEREAS, the respective Boards of Directors of OBC, Merger Sub and FESC deem
the merger of OBC with and into Merger Sub, under and pursuant to the terms and
conditions herein set forth or referred to, desirable and in the best interests
of the respective corporations and their respective shareholders, and the
respective Boards of Directors of OBC, Merger Sub and FESC have adopted
resolutions approving this Plan of Merger and an Agreement and Plan of
Reorganization dated of even date herewith ("Reorganization Agreement"); and

    WHEREAS, the parties hereto desire that OBC shall be acquired by FESC 
through the merger of OBC with and into Merger Sub, with Merger Sub as the 
surviving corporation, subject to the terms and conditions of this Plan of 
Merger and the Reorganization Agreement; and 

    WHEREAS, the parties hereto intend that the Merger shall qualify as or be 
part of a tax-free reorganization under Section 368(a) of the Internal 
Revenue Code of 1986, as amended ("Code").
 
    NOW, THEREFORE, in consideration of the premises and of the mutual
agreements herein contained, the parties hereto do hereby agree as follows:
 
                                   ARTICLE I.
                                     MERGER
 
    Subject to the terms and conditions of this Plan of Merger, at the 
Effective Time (as hereinafter defined), OBC shall be merged with and into 
Merger Sub, pursuant to the provisions of, and with the effect provided in, 8 
Del. Code Ch. 1, subchapter IX (said transaction being hereinafter referred 
to as the "Merger"). At the Effective Time, the separate existence of, OBC 
shall cease and Merger Sub, as the surviving entity, shall continue 
unaffected and unimpaired by the Merger. (Merger Sub as existing at and 


                                A-1


after the Effective Time being hereinafter sometimes referred to as the 
"Surviving Corporation").
 
                                  ARTICLE II.
                    CERTIFICATE OF INCORPORATION AND BY-LAWS
 
    The Certificate of Incorporation and the By-Laws of Merger Sub in effect
immediately prior to the Effective Time shall be the Certificate of
Incorporation and the By-Laws of the Surviving Corporation, in each case until
amended in accordance with applicable law.
 
                                  ARTICLE III.
                               BOARD OF DIRECTORS
 
    The directors and officers of Merger Sub immediately prior to the Effective
Time shall be the directors and officers of the Surviving Corporation, each to
hold office in accordance with Certificate of Incorporation and By-Laws of the
Surviving Corporation.

                                  ARTICLE IV.
                                    CAPITAL
 
    At the Effective Time, all of the shares of capital stock of Merger Sub 
issued and outstanding immediately prior to the Effective Time shall remain 
outstanding and unchanged and shall constitute all of the then-issued and 
outstanding shares of capital stock of the Surviving Corporation.
 
                                 ARTICLE V. 
                     CONVERSION AND EXCHANGE OF OBC 
                   SHARES; FRACTIONAL SHARE INTERESTS

                               [See Annex B]

                                  ARTICLE VI.
                          EFFECTIVE DATE OF THE MERGER
 
    A certificate of merger evidencing the transactions contemplated herein
shall be delivered to the Delaware Secretary of State for filing as provided in
the Reorganization Agreement. The Merger shall be effective at the time and on
the date specified in such certificate of merger (such date and time being
herein referred to as the "Effective Time").
 
                                  ARTICLE VII.
                              CONDITIONS PRECEDENT
 
    The obligations of FESC, Merger Sub and OBC to effect the Merger as herein
provided shall be subject to satisfaction, unless duly waived, of the conditions
set forth in Article 5 of the Reorganization Agreement.
 
                                   A-2


                                 ARTICLE VIII.
                                  TERMINATION
 
    Anything contained in the Plan of Merger to the contrary notwithstanding,
and notwithstanding adoption hereof by the shareholders of OBC, this Plan of
Merger may be terminated and the Merger abandoned as provided in the
Reorganization Agreement.
 
                                  ARTICLE IX.
                                 MISCELLANEOUS
 
    1. This Plan of Merger may be amended or supplemented at any time prior to
the Effective Time by mutual agreement of Merger Sub, FESC and OBC. Any such
amendment or supplement must be in writing and approved by their respective
Boards of Directors and/or by officers authorized thereby and shall be subject
to the proviso in Section 6.4 of the Reorganization Agreement.
 
    2. Any notice or other communication required or permitted under this Plan
of Merger shall be given, and shall be effective, in accordance with the
provisions of the Reorganization Agreement.
 
    3. The headings of the several Articles herein are inserted for convenience
of reference only and are not intended to be a part of or to affect the meaning
or interpretation of this Plan of Merger.
 
    4. This Plan of Merger shall be governed by and construed in accordance with
the laws of Delaware applicable to the internal affairs of OBC and Merger Sub.
 
    5. This Plan of Merger, taken together with the Reorganization Agreement,
shall constitute a plan of reorganization within the meaning of Section 368 of
the Code.

                                   A-3


    IN WITNESS WHEREOF, the parties hereto, intending to be legally bound 
hereby, have caused this Plan of Merger to be executed in counterparts by 
their duly authorized officers and their corporate seals to be hereunto 
affixed and attested by their officers thereunto duly authorized, all as of 
the day and year first above written.

          Attest                                 FIRST EMPIRE STATE CORPORATION

                                                 By [_________________________]

[___________________________]
         Secretary


[___________________________]
          (SEAL)



          Attest                                 OLYMPIA FINANCIAL CORP.

                                                 By [_________________________]

[___________________________]
         Secretary


[___________________________]
          (SEAL)



          Attest                                 ONBANCORP, INC.

                                                 By [_________________________]

[___________________________]
         Secretary


[___________________________]
          (SEAL)

                                   A-4


                                   Annex B
 
                    TERMS FOR CONVERSION OF OBC SHARES
                                  AND
                       FOR TREATMENT OF OBC OPTIONS
 

                        I. CONVERSION OF OBC SHARES

    1. Subject to the terms and provisions of the Plan of Merger, each share 
of OBC Common Stock (including the rights associated therewith) issued and 
outstanding immediately prior to the Effective Time other than shares held in 
treasury by OBC or owned beneficially by FESC or by any subsidiary of FESC or 
OBC other than in a fiduciary capacity ("Trust Account Shares") or in 
connection with a debt previously contracted ("DPC Shares") (such shares 
being referred to herein as "Treasury Shares") shall, by virtue of the 
Merger, automatically and without any action on the part of the holder 
thereof, become and be converted into either (i) the right to receive $69.50 
in cash without interest (the "Cash Consideration") or (ii) the right to 
receive 0.161 shares of FESC Common Stock (with cash in lieu of fractional 
shares) (the "Stock Consideration"). No conversion shall be made in respect 
of any share of OBC Common Stock the holder of which, pursuant to any 
applicable law providing for dissenters' or appraisal rights is entitled to 
receive payment in accordance with the provisions of any such law, such 
holder to have only the rights provided under any such law (such shares of 
OBC Common Stock in respect of which the holders thereof have perfected any 
such rights being hereafter referred to as "Dissenting Shares").
 
    2. The number of shares of OBC Common Stock to be converted into the 
Stock Consideration in the Merger shall not be less than 7,627,083 shares or 
more than 8,898,264 shares; provided, however, that, notwithstanding anything 
to the contrary contained herein, the minimum number of shares of OBC Common 
Stock to be converted into the Stock Consideration in the Merger shall be 
increased to such higher number as shall be required to permit the Merger to 
have the tax consequences referred to in the opinion described in Section 
5.1(g) of the Reorganization Agreement.
 
    3. Subject to the allocation and election procedures set forth below, 
each holder of shares of OBC Common Stock (other than Treasury Shares and 
Dissenting Shares) will be entitled to (i) elect to receive the Cash 
Consideration for all of such shares (a "Cash Election"), (ii) elect to 
receive the Stock Consideration for all of such shares (a "Stock Election"), 
(iii) elect to receive the Cash Consideration with respect to some of such 
shares and the Stock Consideration with respect to such holder's remaining 
shares (a "Mixed Election"), or (iv) make no election or to indicate that 
such record holder has no preference as to the receipt of the Cash 
Consideration or the Stock Consideration (a "Non-Election"); PROVIDED, 
HOWEVER, that a person may make a Mixed Election only if such election would 
result in a Cash Election with respect to at least 100 shares of OBC Common 
Stock and a Stock Election with respect to at least 100 shares of OBC Common 
Stock. All such elections shall be made on a form or forms of designed for 
that purpose ("Form of Election"). Holders of record of shares of OBC Common 
Stock who hold such shares as nominees, trustees or in other representative 
capacities (a "Representative") may submit multiple Forms of Election, 
provided that such Representative certifies that each such Form of Election 
covers all the shares of OBC Common Stock held by that Representative for a 
particular beneficial owner. Shares of OBC Common Stock as to which a Cash 
Election has been made (including pursuant to a Mixed Election) are referred 
to herein as "Cash Election 

                                   B-1


Shares." Shares of OBC Common Stock as to which a Stock Election has
been made (including pursuant to a Mixed Election) are referred to herein as
"Stock Election Shares." Shares of OBC Common Stock as to which no election has
been made are referred to as "Non-Election Shares." The aggregate number of
shares of OBC Common Stock with respect to which a Stock Election has been made
is referred to herein as the "Stock Election Number."
 
    4. If the Stock Election Number exceeds 8,898,264, then all Cash Election
Shares and all NonElection Shares shall be converted into the right to receive
the Cash Consideration, and each holder of Stock Election Shares will be
entitled to receive the Stock Consideration in respect of that number of Stock
Election Shares equal to the product obtained by multiplying (x) the number of
Stock Election Shares held by such holder by (y) a fraction the numerator of
which is 8,898,264 and the denominator of which is the total number of Stock
Election Shares, with the remaining number of such holder's Stock Election
Shares being converted into the right to receive the Cash Consideration.
 
    5. If the Stock Election Number is less than 7,627,083 (the amount by which
7,627,083 exceeds the Stock Election Number being referred to herein as the
"Shortfall Number"), then all Stock Election Shares shall be converted into the
right to receive the Stock Consideration and the Non-Election Shares and Cash
Election Shares shall be treated in the following manner:
 
       (A) if the Shortfall Number is less than or equal to the number of
Non-Election Shares, then each holder of Non-Election Shares shall receive the
Stock Consideration in respect of that number of Non-Election Shares equal to
the product obtained by multiplying (x) the number of Non-Election Shares held
by such holder by (y) a fraction the numerator of which is the Shortfall Number
and the denominator of which is the total number of Non-Election Shares, with
the remaining number of such holder's Non-Election Shares being converted into
the right to receive the Cash Consideration; or

       (B) if the Shortfall Number exceeds the number of Non-Election Shares, 
then all Non-Election Shares shall be converted into the right to receive the 
Stock Consideration, and each holder of Cash Election Shares shall receive 
the Stock Consideration in respect of that number of Cash Election Shares 
equal to the product obtained by multiplying (x) the number of Cash Election 
Shares held by such holder by (y) a fraction the numerator of which is the 
amount by which (1) the Shortfall Number exceeds (2) the total number of 
Non-Election Shares and the denominator of which is the total number of Cash 
Election Shares, with the remaining number of such holder's Cash Election 
Shares being converted into the right to receive the Cash Consideration.
 
    For purposes of this paragraph 5, if FESC is obligated to issue a higher 
number of shares than 7,627,083 as a result of the application of the last 
clause of paragraph 2, then the higher number shall be substituted for 
7,627,083 in the calculations set forth in this paragraph.
 
                                   B-2


    6. In the event that the Stock Election Number exceeds 7,627,083 (or such
higher number as contemplated by the last clause of paragraph 2 but is less
than 8,898,264, then all Cash Election Shares and Non-Election Shares shall be
converted into the right to receive the Cash Consideration and all Stock
Election Shares shall be converted into the right to receive the Stock
Consideration.

    7. In the event that prior to the Effective Date the outstanding shares 
of FESC Common Stock shall have been increased, decreased or changed into or 
exchanged for a different number or kind of shares or securities by 
reorganization, recapitalization, reclassification, stock dividend, stock 
split or other like changes in FESC's capitalization, then an appropriate 
and proportionate adjustment shall be made in the number and kind of shares 
of FESC Common Stock to be thereafter delivered pursuant to the Plan of 
Merger.
 
                          II. TREATMENT OF OBC OPTIONS
 
    1. At the Effective Time, each then-outstanding stock option (each an "OBC
Option") granted under the 1992 OBC Directors Stock Option Plan, the OBC 1987
Stock Option and Appreciation Rights Plan or the Franklin First Savings Bank
Incentive Plan (collectively, the "OBC Stock Option Plans"), whether vested or
unvested, will be assumed by FESC. Each OBC Option so assumed by FESC shall
continue to have, and be subject to, the same terms and conditions set forth in
the OBC Stock Option Plan under which it was granted and as in existence
immediately prior to the Effective Time, except that (i) such OBC Option shall
be exercisable (when vested) for that number of whole shares of FESC Common
Stock equal to the product of the number of shares of OBC Common Stock covered
by the OBC Option multiplied by 0.161, provided that any fractional shares of
FESC Common stock resulting form such multiplication shall be rounded down to
the nearest share and (ii) the exercise price per share of FESC Common Stock
shall be equal to the exercise price per share of OBC Common Stock of such OBC
Option divided by 0.161, provided that such exercise price shall be rounded up
to the nearest cent.
 
    2. Each holder of a vested OBC Option may elect to receive, in cancellation
of such OBC Option at the Effective Time, and without payment of any
consideration by such holder, an amount of cash computed by (i) multiplying the
average closing price of FESC Common Stock for the five trading days immediately
preceding the Effective Date by 0.105; (ii) adding $24.33 to the product
obtained in the preceding clause (i); (iii) subtracting from the sum obtained in
the preceding clause (ii) the per share exercise price of such OBC Option; and
(iv) multiplying the difference obtained in the preceding clause (iii) by the
number of shares of OBC Common Stock covered by the OBC Option being cancelled.
 
                                   B-3


                                                               Exhibit 99.1


                     THE TRANSFER OF THIS AGREEMENT IS SUBJECT TO
                      CERTAIN PROVISIONS CONTAINED HEREIN AND TO
                            RESALE RESTRICTIONS UNDER THE
                          SECURITIES ACT OF 1933, AS AMENDED


         STOCK OPTION AGREEMENT, dated October 28, 1997, between ONBANCorp,
Inc., a Delaware corporation ("Issuer"), and First Empire State Corporation, a
New York corporation ("Grantee").

                                 W I T N E S S E T H:

         WHEREAS, Grantee, Issuer and Olympia Financial Corp., a Delaware
corporation and a wholly owned subsidiary of Grantee ("Merger Sub") have entered
into an Agreement and Plan of Reorganization of even date herewith (the
"Reorganization Agreement"), which agreement has been executed by the parties
hereto immediately prior to this Stock Option Agreement (the "Agreement"), and
will enter into an Agreement and Plan of Merger to be dated as of the date of
this Agreement (the "Plan of Merger," and, together with the Reorganization
Agreement, the "Merger Agreements"); and

         WHEREAS, as a condition to Grantee's entering into the Merger
Agreements and in consideration therefor, Issuer has agreed to grant Grantee the
Option (as hereinafter defined);

         NOW, THEREFORE, in consideration of the foregoing and the mutual
covenants and agreements set forth herein and in the Merger Agreements, the
parties hereto agree as follows:

         1.(a)  Issuer hereby grants to Grantee an unconditional, irrevocable
option (the "Option") to purchase, subject to the terms hereof, up to 2,529,000
fully paid and nonassessable shares of Issuer's Common Stock, par value $1.00
per share ("Common Stock"), at a price of $60.00 per share (the "Option Price");
provided, however, that in no event shall the number of shares of Common Stock
for which this Option is exercisable exceed 19.9% of the Issuer's issued and
outstanding shares of Common Stock without giving effect to any shares subject
to or issued pursuant to the Option.  The number of shares of Common Stock that
may be received upon the exercise of the Option and the Option Price are subject
to adjustment as herein set forth.

         (b) In the event that any additional shares of Common Stock are either
(i) issued or otherwise become out-



standing after the date of this Agreement (other than pursuant to this Agreement
or as permitted under the terms of the Merger Agreements) or (ii) redeemed,
repurchased, retired or otherwise cease to be outstanding after the date of the
Agreement, the number of shares of Common Stock subject to the Option shall be
increased or decreased, as appropriate, so that, after such issuance, such
number equals 19.9% of the number of shares of Common Stock then issued and
outstanding without giving effect to any shares subject or issued pursuant to
the Option.  Nothing contained in this Section 1(b) or elsewhere in this
Agreement shall be deemed to authorize Issuer or Grantee to breach any provision
of the Merger Agreements.

         2.(a)  The Holder (as hereinafter defined) may exercise the Option, in
whole or part, and from time to time, if, but only if, both an Initial
Triggering Event (as hereinafter defined) and a Subsequent Triggering Event (as
hereinafter defined) shall have occurred prior to the occurrence of an Exercise
Termination Event (as hereinafter defined), provided, however, that the Holder
shall have sent the written notice of such exercise (as provided in subsection
(e) of this Section 2) within six months following such Subsequent Triggering
Event, provided further, however, that if the Option cannot be exercised on any
day because of any injunction, order or similar restraint issued by a court of
competent jurisdiction, the period during which the Option may be exercised
shall be extended so that the Option shall expire no earlier than on the 10th
business day after such injunction, order or restraint shall have been dissolved
or when such injunction, order or restraint shall have become permanent and no
longer subject to appeal, as the case may be.  Each of the following shall be an
"Exercise Termination Event":  (i) the Effective Time (as defined in the Plan of
Merger) of the Merger; (ii) termination of the Merger Agreements in accordance
with the provisions thereof if such termination occurs prior to the occurrence
of an Initial Triggering Event except a termination by Grantee pursuant to
Section 6.1(b)(i) of the Reorganization Agreement (unless the breach by Issuer
giving rise to such right of termination is non-volitional); or (iii) the
passage of 12 months after termination of the Merger Agreements if such
termination follows the occurrence of an Initial Triggering Event or is a
termination by Grantee pursuant to Section 6.1(b)(i) of the Reorganization
Agreement (unless the breach by Issuer giving rise to such right of termination
is non-volitional).  The term "Holder" shall mean the holder or holders of the
Option.  Notwithstanding anything to the contrary contained herein, the Option
may not be exercised (nor may Grantee's rights under Section 13 hereof be
exercised) at any time when Grantee shall be in willful breach of any of its
covenants or 

                                         2


agreements contained in the Merger Agreements under circumstances that would
entitle Issuer to terminate the Merger Agreements (without regard to any grace
period provided for in Section 6.1(b)(x) of the Reorganization Agreement).  In
the event that Issuer terminates the Merger Agreements under circumstances where
the proviso to Section 6.1(f) of the reorganization Agreement is applicable,
then immediately upon Grantee's receipt of the wire transfer contemplated by
such proviso to Section 6.1(f), this Agreement shall terminate and shall become
void and have no further force or effect and Grantee shall surrender this
Agreement to Issuer.

         (b) The term "Initial Triggering Event" shall mean any of the
following events or transactions occurring after the date hereof:

              (i)  Issuer or any of its Subsidiaries (each an "Issuer
    Subsidiary"), without having received Grantee's prior written consent,
    shall have entered into an agreement to engage in an Acquisition
    Transaction (as hereinafter defined) with any person (the term "person" for
    purposes of this Agreement having the meaning assigned thereto in 
    Sections 3(a)(9) and 13(d)(3) of the Securities Exchange Act of 1934, as 
    amended (the "1934 Act"), and the rules and regulations thereunder) other 
    than Grantee or any of its Subsidiaries (each a "Grantee Subsidiary") or 
    Issuer or any of its Subsidiaries, without having received Grantee's prior 
    written consent, shall have authorized, recommended, proposed, or publicly
    announced its intention to authorize, recommend or propose to engage in an
    Acquisition Transaction with any person other than Grantee or a Subsidiary
    of Grantee.  For purposes of this Agreement, "Acquisition Transaction"
    shall mean (w) a merger or consolidation, or any similar transaction,
    involving Issuer or any Significant Subsidiary (as defined in Rule 1-02 of
    Regulation S-X promulgated by the Securities and Exchange Commission (the
    "SEC")) of Issuer, (x) a purchase, lease or other acquisition or assumption
    of all or a substantial portion of the assets or deposits of Issuer or any
    Significant Subsidiary of Issuer, (y) a purchase or other acquisition
    (including by way of merger, consolidation, share exchange or otherwise) of
    securities representing 10% or more of the voting power of Issuer, or (z)
    any substantially similar transaction; provided, however, that in no event
    shall any merger, consolidation, purchase or similar transaction involving
    only the Issuer and one or more of its Subsidiaries or 

                                         3


    involving only two or more of such Subsidiaries, be deemed to be an
    Acquisition Transaction, provided that any such transaction is not entered
    into in violation of the terms of the Merger Agreements;
    
              (ii) Any person (other than Grantee or any Subsidiary of Grantee)
    shall have acquired beneficial ownership or the right to acquire beneficial
    ownership of 10% or more of the outstanding shares of Common Stock (the
    term "beneficial ownership" for purposes of this Agreement having the
    meaning assigned thereto in Section 13(d) of the 1934 Act, and the rules
    and regulations thereunder) or any person other than Grantee or any
    Subsidiary of Grantee shall have commenced (as such term is defined under
    the rules and regulations of the SEC), or shall have filed or publicly
    disseminated a registration statement or similar disclosure statement with
    respect to, a tender offer or exchange offer to purchase any shares of
    Issuer Common Stock such that, upon consummation of such offer, such person
    would own or control 10% or more of the then outstanding shares of Issuer
    Common Stock (such an offer being referred to herein as a "Tender Offer" or
    an "Exchange Offer," respectively);

              (iii)     (A)  the holders of Issuer Common Stock shall not have
    approved the Merger Agreements and the transactions contemplated thereby,
    at the meeting of such stockholders held for the purpose of voting on such
    agreement, (B) such meeting shall not have been held or shall have been
    cancelled prior to termination of the Merger Agreements, or (C) the Board
    of Directors of Issuer shall have publicly withdrawn or modified, or
    publicly announced its intent to withdraw or modify, in any manner adverse
    to Grantee, its recommendation that the stockholders of Issuer approve the
    transactions contemplated by the Merger Agreements, in each case after it
    shall have been publicly announced that any person other than Grantee or
    any Subsidiary of Grantee shall have (x) made, or disclosed an intention to
    make, a proposal to engage in an Acquisition Transaction, (u) commenced a
    Tender Offer, or filed or publicly disseminated a registration statement or
    similar disclosure statement with respect to an Exchange Offer, or (z)
    filed an application (or given a notice), whether in draft or final form,
    under any federal or state banking laws seeking regulatory approval to
    engage in an Acquisition Transaction; or
    
    

                                         4



              (iv) After an overture is made by a third party to Issuer or its
    stockholders to engage in an Acquisition Transaction, Issuer shall have
    breached any covenant or obligation contained in the Reorganization
    Agreement and such breach (x) would entitle Grantee to terminate the Merger
    Agreements and (y) shall not have been cured prior to the Notice Date (as
    defined below).

         (c)  The term "Subsequent Triggering Event" shall mean either of the
following events or transactions occurring after the date hereof:

              (i)  The acquisition by any person of beneficial ownership of 25%
    or more of the then outstanding shares of Common Stock; or
    
              (ii) The occurrence of the Initial Triggering Event described in
    paragraph (i) of subsection (b) of this Section 2, except that the
    percentage referred to in clause (y) shall be 25%.

         (d)  Issuer shall notify Grantee promptly in writing of the occurrence
of any Initial Triggering Event or Subsequent Triggering Event of which it has
notice (together, a "Triggering Event"), it being understood that the giving of
such notice by Issuer shall not be a condition to the right of the Holder to
exercise the Option.

         (e)  In the event the Holder is entitled to and wishes to exercise the
Option, it shall send to Issuer a written notice (the date of which being herein
referred to as the "Notice Date") specifying (i) the total number of shares it
will purchase pursuant to such exercise and (ii) a place and date not earlier
than three business days nor later than 60 business days from the Notice Date
for the closing of such purchase (the "Closing Date"); provided that if prior
notification to or approval of the Federal Reserve Board or any other regulatory
agency is required in connection with such purchase, the Holder shall promptly
file the required notice or application for approval and shall expeditiously
process the same and the period of time that otherwise would run pursuant to
this sentence shall run instead from the date on which any required notification
periods have expired or been terminated or such approvals have been obtained and
any requisite waiting period or periods shall have passed.  Any exercise of the
Option shall be deemed to occur on the Notice Date relating thereto.

                                         5



         (f)  At the closing referred to in subsection (e) of this Section 2,
the Holder shall pay to Issuer the aggregate purchase price for the shares of
Common Stock purchased pursuant to the exercise of the Option in immediately
available funds by wire transfer to a bank account designated by Issuer,
provided that failure or refusal of Issuer to designate such a bank account
shall not preclude the Holder from exercising the Option.

         (g)  At such closing, simultaneously with the delivery of immediately
available funds as provided in subsection (f) of this Section 2, Issuer shall
deliver to the Holder a certificate or certificates representing the number of
shares of Common Stock purchased by the Holder and, if the Option should be
exercised in part only, a new Option evidencing the rights of the Holder thereof
to purchase the balance of the shares purchasable hereunder, and the Holder
shall deliver to Issuer a copy of this Agreement and a letter agreeing that the
Holder will not offer to sell or otherwise dispose of such shares in violation
of applicable law or the provisions of this Agreement.

         (h)  Certificates for Common Stock delivered at a closing hereunder
may be endorsed with a restrictive legend that shall read substantially as
follows:

         "The transfer of the shares represented by this certificate is subject
         to certain provisions of an agreement between the registered holder
         hereof and Issuer and to resale restrictions arising under the 
         Securities Act of 1933, as amended.  A copy of such agreement is on
         file at the principal office of Issuer and will be provided to the
         holder hereof without charge upon receipt by Issuer of a written
         request therefor."

It is understood and agreed that:  (i) the reference to the resale restrictions
of the Securities Act of 1933, as amended (the "1933 Act"), in the above legend
shall be removed by delivery of substitute certificate(s) without such reference
if the Holder shall have delivered to Issuer a copy of a letter from the staff
of the SEC, or an opinion of counsel, in form and substance reasonably
satisfactory to Issuer, to the effect that such legend is not required for
purposes of the 1933 Act; (ii) the reference to the provisions to this Agreement
in the above legend shall be removed by delivery of substitute certificate(s)
without such reference if the shares have been sold or transferred in compliance
with the provisions of this Agreement and under circumstances that do not
require the retention of such reference; and (iii) the legend 

                                         6



shall be removed in its entirety if the conditions in the preceding clauses (i)
and (ii) are both satisfied.  In addition, such certificates shall bear any
other legend as may be required by law.

         (i)  Upon the giving by the Holder to Issuer of the written notice of
exercise of the Option provided for under subsection (e) of this Section 2 and
the tender of the applicable purchase price in immediately available funds, the
Holder shall be deemed to be the holder of record of the shares of Common Stock
issuable upon such exercise, notwithstanding that the stock transfer books of
Issuer shall then be closed or that certificates representing such shares of
Common Stock shall not then be actually delivered to the Holder.  Issuer shall
pay all expenses, and any and all United States federal, state and local taxes
and other charges that may be payable in connection with the preparation, issue
and delivery of stock certificates under this Section 2 in the name of the
Holder or its assignee, transferee or designee.

         3. Issuer agrees:  (i) that it shall at all times maintain, free from
preemptive rights, sufficient authorized but unissued or treasury shares of
Common Stock so that the Option may be exercised without additional
authorization of Common Stock after giving effect to all other options,
warrants, convertible securities and other rights to purchase Common Stock; (ii)
that it will not, by charter amendment or through reorganization, consolidation,
merger, dissolution or sale of assets, or by any other voluntary act, avoid or
seek to avoid the observance or performance of any of the covenants,
stipulations or conditions to be observed or performed hereunder by Issuer;
(iii) promptly to take all action as may from time to time be required
(including (x) complying with all premerger notification, reporting and waiting
period requirements specified in 15 U.S.C. Section 18a and regulations
promulgated thereunder and (y) in the event, under federal or state banking law,
prior approval of or notice to the Federal Reserve Board or any other federal or
state regulatory authority is necessary before the Option may be exercised,
cooperating fully with the Holder in preparing such applications or notices and
providing such information to the Federal Reserve Board or such other federal or
state regulatory authority as they may require) in order to permit the Holder to
exercise the Option and Issuer duly and effectively to issue shares of Common
Stock pursuant hereto; and (iv) promptly to take all action provided herein to
protect the rights of the Holder against dilution.

         4. This Agreement (and the Option granted hereby) are exchangeable,
without expense, at the option of the Hold-

                                         7


er, upon presentation and surrender of this Agreement at the principal office of
Issuer, for other Agreements providing for Options of different denominations
entitling the holder thereof to purchase, on the same terms and subject to the
same conditions as are set forth herein, in the aggregate the same number of
shares of Common Stock purchasable hereunder.  The terms "Agreement" and
"Option" as used herein include any Stock Option Agreements and related Options
for which this Agreement (and the Option granted hereby) may be exchanged.  Upon
receipt by Issuer of evidence reasonably satisfactory to it of the loss, theft,
destruction or mutilation of this Agreement, and (in the case of loss, theft or
destruction) of reasonably satisfactory indemnification, and upon surrender and
cancellation of this Agreement, if mutilated, Issuer will execute and deliver a
new Agreement of like tenor and date.  Any such new Agreement executed and
delivered shall constitute an additional contractual obligation on the part of
Issuer, whether or not the Agreement so lost, stolen, destroyed or mutilated
shall at any time be enforceable by anyone.

         5. In addition to the adjustment in the number of shares of Common
Stock that are purchasable upon exercise of the Option pursuant to Section 1 of
this Agreement, the number of shares of Common Stock purchasable upon the
exercise of the Option and the Option Price shall be subject to adjustment from
time to time as provided in this Section 5.  In the event of any change in, or
distributions in respect of, the Common Stock by reason of stock dividends,
split-ups,  mergers, recapitalizations, combinations, subdivisions, conversions,
exchanges of shares, distributions on or in respect of the Common Stock that
would be prohibited under the terms of the Merger Agreement, or the like, the
type and number of shares of Common Stock purchasable upon exercise hereof and
the Option Price shall be appropriately adjusted in such manner as shall fully
preserve the economic benefits provided hereunder and proper provision shall be
made in any agreement governing any such transaction to provide for such proper
adjustment and the full satisfaction of the Issuer's obligations hereunder.

         6. Upon the occurrence of a Subsequent Triggering Event that occurs
prior to an Exercise Termination Event, Issuer shall, at the request of Grantee
delivered within six months of such Subsequent Triggering Event (whether on its
own behalf or on behalf of any subsequent holder of this Option (or part
thereof) or any of the shares of Common Stock issued pursuant hereto), promptly
prepare, file and keep current a registration statement under the 1933 Act
covering this Option and any shares issued and issuable pursuant to this Option
and shall use its reasonable best efforts to 


                                         8


cause such registration statement to become effective and remain current in
order to permit the sale or other disposition of this Option and any shares of
Common Stock issued upon total or partial exercise of this Option ("Option
Shares") in accordance with any plan of disposition requested by Grantee. 
Issuer will use its reasonable best efforts to cause such registration statement
first to become effective and then to remain effective for such period not in
excess of 180 days from the day such registration statement first becomes
effective or such shorter time as may be reasonably necessary to effect such
sales or other dispositions.  Grantee shall have the right to demand two such
registrations.  The foregoing notwithstanding, if, at the time of any request by
Grantee for registration of the Option or Option Shares as provided above,
Issuer is in registration with respect to an underwritten public offering of
shares of Common Stock, and if in the good faith judgment of the managing
underwriter or managing underwriters, or, if none, the sole underwriter or
underwriters, of such offering the inclusion of the Holder's Option or Option
Shares would interfere with the successful marketing of the shares of Common
Stock offered by Issuer, the number of Option Shares otherwise to be covered in
the registration statement contemplated hereby may be reduced; and provided,
however, that after any such required reduction the number of Option Shares to
be included in such offering for the account of the Holder shall constitute at
least 25% of the total number of shares to be sold by the Holder and Issuer in
the aggregate; and provided further, however, that  if such reduction occurs,
then the Issuer shall file a registration statement for the balance as promptly
as practicable and no reduction shall thereafter occur.  Each such Holder shall
provide all information reasonably requested by Issuer for inclusion in any
registration statement to be filed hereunder.  If requested by any such Holder
in connection with such registration, Issuer shall become a party to any
underwriting agreement relating to the sale of such shares, but only to the
extent of obligating itself in respect of representations, warranties,
indemnities and other agreements customarily included in secondary offering
underwriting agreements for the Issuer.  Upon receiving any request under this
Section 6 from any Holder, Issuer agrees to send a copy thereof to any other
person known to Issuer to be entitled to registration rights under this Section
6, in each case by promptly mailing the same, postage prepaid, to the address of
record of the persons entitled to receive such copies.  Notwithstanding anything
to the contrary contained herein, in no event shall Issuer be obligated to
effect more than two registrations pursuant to this Section 6 by reason of the
fact that there shall be more 

                                         9



than one Grantee as a result of any assignment or division of this Agreement. 

         7. [reserved]

         8. [reserved]

         9. [reserved]

         10. The six-month period for exercise of certain rights under Sections
2, 6 and 13 shall be extended:  (i) to the extent necessary to obtain all
regulatory approvals for the exercise of such rights, and for the expiration of
all statutory waiting periods; and (ii) to the extent necessary to avoid
liability under Section 16(b) of the 1934 Act by reason of such exercise.

         11. Issuer hereby represents and warrants to Grantee as follows:

         (a) Issuer has full corporate power and authority to execute and
deliver this Agreement and to consummate the transactions contemplated hereby. 
The execution and delivery of this Agreement and the consummation of the
transactions contemplated hereby have been duly and validly authorized by the
Board of Directors of Issuer and no other corporate proceedings on the part of
Issuer are necessary to authorize this Agreement or to consummate the
transactions so contemplated.  This Agreement has been duly and validly executed
and delivered by Issuer. 

         (b) Issuer has taken all necessary corporate action to authorize and
reserve and to permit it to issue, and at all times from the date hereof through
the termination of this Agreement in accordance with its terms will have
reserved for issuance upon the exercise of the Option, that number of shares of
Common Stock equal to the maximum number of shares of Common Stock at any time
and from time to time issuable hereunder, and all such shares, upon issuance
pursuant hereto, will be duly authorized, validly issued, fully paid,
nonassessable, and will be delivered free and clear of all claims, liens,
encumbrance and security interests and not subject to any preemptive rights.

         12.  Grantee hereby represents and warrants to Issuer that:

         (a)  Grantee has all requisite corporate power and authority to enter
into this Agreement and, subject to any approvals or consents referred to
herein, to consummate the 


                                         10


transactions contemplated hereby.  The execution and delivery of this Agreement
and the consummation of the transactions contemplated hereby have been duly
authorized by all necessary corporate action on the part of Grantee.  This
Agreement has been duly executed and delivered by Grantee.

         (b)  The Option is not being, and any shares of Common Stock or other
securities acquired by Grantee upon exercise of the Option will not be, acquired
with a view to the public distribution thereof and will not be transferred or
otherwise disposed of except in a transaction registered or exempt from
registration under the Securities Act.

         13. Neither of the parties hereto may assign any of its rights or
obligations under this Agreement or the Option created hereunder to any other
person, without the express written consent of the other party, except that in
the event a Subsequent Triggering Event shall have occurred prior to an Exercise
Termination Event, Grantee, subject to the express provisions hereof, may assign
in whole or in part its rights and obligations hereunder within six months
following such Subsequent Triggering Event (or such later period as provided in
Section 10); provided, however, that until the date 15 days following the date
on which the Federal Reserve Board approves an application by Grantee to acquire
the shares of Common Stock subject to the Option, Grantee may not assign its
rights under the Option except in (i) a widely dispersed public distribution,
(ii) a private placement in which no one party acquires the right to purchase in
excess of 2% of the voting shares of Issuer, (iii) an assignment to a single
party (e.g., a broker or investment banker) for the purpose of conducting a
widely dispersed public distribution on Grantee's behalf, or (iv) any other
manner approved by the Federal Reserve Board.

         14. Each of Grantee and Issuer will use its best efforts to make all
filings with, and to obtain consents of, all third parties and governmental
authorities necessary to the consummation of the transactions contemplated by
this Agreement, including without limitation making application to list the
shares of Common Stock issuable hereunder on the Nasdaq National Market upon
official notice of issuance and applying to the Federal Reserve Board and the
OTS, as applicable, for approval to acquire the shares issuable hereunder, but
Grantee shall not be obligated to apply to state banking authorities for
approval to acquire the shares of Common Stock issuable hereunder until such
time, if ever, as it deems appropriate to do so.


                                         11


         15. (a)  Notwithstanding any other provision of this Agreement, in no
event shall the Grantee's Total Profit (as hereinafter defined) exceed $43.6
million and, if it otherwise would exceed such amount, the Grantee, at its sole
election, shall either (i) reduce the number of shares of Common Stock subject
to this Option, (ii) deliver to the Issuer for cancellation Option Shares
previously purchased by Grantee, (iii) pay cash to the Issuer, or (iv) any
combination thereof, so that Grantee's actually realized Total Profit shall not
exceed $43.6 million after taking into account the foregoing actions.

         (b)  Notwithstanding any other provision of this Agreement, this
Option may not be exercised for a number of shares as would, as of the date of
exercise, result in a Notional Total Profit (as defined below) of more than
$43.6 million; provided, that nothing in this sentence shall restrict any
exercise of the Option permitted hereby on any subsequent date.

         (c)  As used herein, the term "Total Profit" shall mean the aggregate
amount (before taxes) of (i)(x) the net cash amounts received by Grantee
pursuant to the sale of Option Shares (or any other securities into which such
Option Shares are converted or exchanged) to any unaffiliated party, less (y)
the Grantee's purchase price of such Option Shares, plus (ii) any amounts
received by Grantee on the transfer of the Option (or any portion thereof) to
any unaffiliated party.

         (d)  As used herein, the term "Notional Total Profit" with respect to
any number of shares as to which Grantee may propose to exercise this Option
shall be the Total Profit determined as of the date of such proposed exercise
assuming that this Option were exercised on such date for such number of shares
and assuming that such shares, together with all other Option Shares held by
Grantee and its affiliates as of such date, were sold for cash at the closing
market price for the Common Stock as of the close of business on the preceding
trading day (less customary brokerage commissions).

         16. The parties hereto acknowledge that damages would be an inadequate
remedy for a breach of this Agreement by either party hereto and that the
obligations of the parties hereto shall be enforceable by either party hereto
through injunctive or other equitable relief.

         17. If any term, provision, covenant or restriction contained in this
Agreement is held by a court or a fed-


                                         12


eral or state regulatory agency of competent jurisdiction to be invalid, void or
unenforceable, the remainder of the terms, provisions and covenants and
restrictions contained in this Agreement shall remain in full force and effect,
and shall in no way be affected, impaired or invalidated.  If for any reason
such court or regulatory agency determines that the Holder is not permitted to
acquire the full number of shares of Common Stock provided in Section 1(a)
hereof (as adjusted pursuant to Section 1(b) or 5 hereof), it is the express
intention of Issuer to allow the Holder to acquire such lesser number of shares
as may be permissible, without any amendment or modification hereof.

         18. All notices, requests, claims, demands and other communications
hereunder shall be deemed to have been duly given when delivered in person, by
cable, telegram, telecopy or telex, or by registered or certified mail (postage
prepaid, return receipt requested) at the respective addresses of the parties
set forth in the Reorganization Agreement.

         19. This Agreement shall be governed by and construed in accordance
with the laws of the State of Delaware, regardless of the laws that might
otherwise govern under applicable principles of conflicts of laws thereof.

         20. This Agreement may be executed in two or more counterparts, each
of which shall be deemed to be an original, but all of which shall constitute
one and the same agreement.

         21. Except as otherwise expressly provided herein, each of the parties
hereto shall bear and pay all costs and expenses incurred by it or on its behalf
in connection with the transactions contemplated hereunder, including fees and
expenses of its own financial consultants, investment bankers, accountants and
counsel.

         22. Except as otherwise expressly provided herein or in the Merger
Agreements, this Agreement contains the entire agreement between the parties
with respect to the transactions contemplated hereunder and supersedes all prior
arrangements or understandings with respect thereof, written or oral.  The terms
and conditions of this Agreement shall inure to the benefit of and be binding
upon the parties hereto and their respective successors and permitted assigns. 
Nothing in this Agreement, expressed or implied, is intended to confer upon any
party, other than the parties hereto, and their respective successors and
permitted assigns, any rights, remedies, obligations or liabilities under or by
reason of this Agreement, except as expressly provided herein.


                                         13


         23. Capitalized terms used in this Agreement and not defined herein
shall have the meanings assigned thereto in the Merger Agreement.

                                         14

 
              IN WITNESS WHEREOF, each of the parties has caused this Agreement
to be executed on its behalf by its officers thereunto duly authorized, all as
of the date first above written.


                                       ONBANCORP, INC.



                                       By: /s/ Robert J. Bennett          
                                          -----------------------
                                          Name:  Robert J. Bennett
                                          Title: Chairman and Chief    
                                                 Executive Officer


                                       FIRST EMPIRE STATE CORPORATION



                                       By: /s/ Richard A. Lammert         
                                          -----------------------
                                          Name:  Richard A. Lammert
                                          Title: Senior Vice 
                                                 President and          
                                                 General Counsel

                                         15




         Contact               ONBANCorp, Inc.          For Immediate Release
                              October 28, 1997
                              Robert J. Berger
                               (315) 424-4575

                        First Empire State Corporation
                         Gary S. Paul (716) 842-5130)

    ONBANCORP AND FIRST EMPIRE ANNOUNCE MERGER First Empire to pay $872 million
in stock and cash

    SYRACUSE and BUFFALO, NEW YORK (October 28, 1997) -- ONBANCorp, Inc.
(NASDAQ:ONBK), Syracuse, New York, and First Empire State Corporation ("First
Empire") (AMEX:FES), Buffalo, New York, today jointly announced that they have
entered into a definitive agreement for a merger between the two companies.

    The merger will create the largest banking franchise in Central and 
Western New York State, with a significant presence in many other New York 
markets and in northeast Pennsylvania. The combined company will have a 20 
percent share of Central and Western New York deposits, served in part by 76 
branches in greater Buffalo, 46 in greater Rochester, 39 in greater Syracuse, 
38 in Albany and the Hudson Valley, 15 in metropolitan New York and 19 in 
northeastern Pennsylvania. Upon consummation of the merger, ONBANCorp's 
banking subsidiaries will be merged into Manufacturers and Traders Trust 
Company ("M&T Bank"), First Empire's principal commercial banking subsidiary. 
M&T Bank will have a total of 255 branches in New York State and Pennsylvania.
 
    Robert J. Bennett, chairman, president and chief executive officer of
ONBANCorp said, "This is a merger of two strong financial organizations which
will result in much-improved market position in upstate New York and
northeastern Pennsylvania. The merger will be very beneficial to our
shareholders and particularly to the communities which ONBANCorp serves. The
expanded M&T Bank will bring a broader array of products to our customers. As
the pre-eminent commercial lender in Western New York, the combined M&T Bank
will further strengthen our commercial banking business."




    Robert G. Wilmers, chairman, president and chief executive officer of First
Empire, said "We are delighted to have ONBANCorp join forces with First Empire.
Together we will become the premiere banking franchise in upstate New York and
the only statewide banking company truly headquartered in upstate New York.
Through the integration of Franklin First's Pennsylvania branches, M&T Bank will
undertake the natural progression into interstate banking."
 
    Following the merger, Mr. Bennett will be elected chairman of the board of
directors of First Empire and vice chairman of M&T Bank. Mr. Wilmers will
continue as president and chief executive officer of First Empire and chairman
and chief executive officer of M&T Bank.
 
    With a 30 percent share of deposits, the combined institution will become 
the market leader in Syracuse, a position M&T Bank already occupies in its
headquarters city of Buffalo, where it has a 36% share. The merger will also add
to M&T Bank's market share in Rochester, and introduce M&T Bank's retail
presence to the Albany market while providing a meaningful position in the
northeastern Pennsylvania market.
 
    The merged institution will offer customers an array of enhanced products
and services which include on-line banking, PC home banking, investment
products, 24-hour telephone customer service and bill paying, an expanded
mortgage product line and an ATM network unmatched in he region. As a leading
commercial lender to small and medium sized businesses, the combined bank will
offer its complete package of products and services through the expanded branch
network.

    Officials at both companies noted that the merger will result in very few
branch consolidations since there is little overlap between the retail branch
networks. The companies expect to save six percent of their combined yearly
operating expenses through the merger.
 
    Under the terms of the merger agreement, stockholders of ONBANCorp will have
the option of receiving .161 of a share of First Empire common stock or $69.50
in cash in exchange for each outstanding share of ONBANCorp common stock. A
minimum of 60 percent and a maximum of 70 percent of the 12,711,808 shares of
ONBANCorp common stock currently outstanding must be 


                                     -2-



exchanged for First Empire stock. The selection of the method of payment by 
ONBANCorp's stockholders will be subject to allocation and proration if the 
stock portion of the total merger consideration would be less than the 
minimum or greater than the maximum.
 
    Based on the current number of shares of ONBANCorp common stock currently
outstanding, and assuming 8,809,264 shares of ONBANCorp common stock are
exchanged for 1,432,620 shares of First Empire common stock, the merger has an
indicated value of $872 million. On the same basis, the pro forma market
capitalization of First Empire would be approximately $3.3 billion following the
merger. The pricing reflects 268% of ONBANCorp's book value at September 30,
1997 and 18.9 times ONBANCorp's earning over the past twelve months. The
combined institution would rank 40th among independent U.S. banking companies on
a pro forma basis as of September 30, 1997 with $19.2 billion in total assets.
 
    ONBANCorp also granted First Empire a stock option to acquire up to 19.9
percent of the shares of common stock of ONBANCorp under certain circumstances.
The transaction has been approved by the board of directors of both companies,
and is subject to a number of conditions, including various regulatory approvals
and approvals of each company's stockholders. It is anticipated that the
transaction will be completed in early 1998.


                                     -3-



FIRST EMPIRE STATE CORPORATION
_______________________________________

Accretive To EPS*

               GAAP EPS             CASH EPS
           ----------------     ----------------
           $              %     $               %
           ----------------     -----------------
1998        (1.21)      -4       1.99          7

1999         0.74        2       4.28         14

2000         1.17        3       4.71         14


*Excludes one time costs associated with the acquisition Note: 1998 based on
  median First Call EPS estimates.




FIRST EMPIRE STATE CORPORATION
_______________________________________

EXPECTED COST SAVINGS
 
    - 30% cost saves in 1999, about two-thirds achievable in 1998 

    - Limited branch closures because it is market expansion 

    - Net reduction of approximately 250-300 staff
 
                                                                  $ MILLIONS
                                                                  -----------
Technology & Operations.........................................       12

Corporate Overhead..............................................       10

Business Line Consolidation.....................................        7

Facilities......................................................        2
                                                                       ---
Annual Savings..................................................       $31
                                                                       ---




FIRST EMPIRE STATE CORPORATION
_______________________________________

MERGER RELATED CHARGES
 
    Pre-Tax Merger Related Charges:

                                                                  $ MILLIONS
                                                                  ----------
- - Deal Costs.....................................................        8

- - Conversion Costs...............................................       10

- - Facilities.....................................................       11

- - Human Resources................................................       16
                                                                       ---
Total Merger Related Costs.....................................        $45
                                                                       ---




FIRST EMPIRE STATE CORPORATION
_______________________________________

FIRST CALL ANALYST ASSUMPTIONS
 
    FIRST EMPIRE
    - 1998 EPS of $27.92 
    - Implies 1998 net income of $195 million 
    - First Call EPS growth estimate of 10% 
    - 1998 fully diluted shares of 6,982,000
 
    ONBANCorp
 
    - 1998 EPS of $4.03 
    - Implies 1998 net income of $53 million 
    - First Call EPS growth estimate of 11% 
    - 1998 fully diluted shares of 13,122,000




FIRST EMPIRE STATE CORPORATION
_______________________________________

CASH EARNINGS*

PRO FORMA 1998 PRO FORMA 1998 ($000, EXCEPT PER SHARE) FOR FULL REALIZATION OF SAVINGS FOR ACTUAL SAVINGS --------------------------------- ---------------------- SHARES NET INCOME EPS NET INCOME EPS - ------------------------------------------------------------- --------- ----------- --------- ----------- --------- ONBK forecasted standalone earnings.......................... 13,122 52,883 4.03 52,883 4.03 Less: Funding costs of cash portion.......................... (10,365) (10,365) Plus: amortization of existing deposit premium............... 2,746 2,746 Plus: Expense saves.......................................... 19,314 12,876 ----------- --------- ----------- --------- ONBK cash earnings per FESC basis after saves................ 1,433 64,579 45.08 58,141 40.59 FESC forecasted standalone earnings.......................... 194,925 27.92 194,925 27.92 Plus: Amortization of existing goodwill...................... 6,693 6,693 ----------- --------- ----------- --------- FESC cash earnings........................................... 6,982 201,618 28.88 201,618 28.88 -------- FESC-ONBK Combined........................................... 8,414 266,197 31.64 259,759 30.87 ----------- --------- ----------- --------- Cash EPS accretion($)........................................ 2.76 1.99 Cash EPS accretion (%)....................................... 10% 7%
*Does not include amortization of intangibles created in the deal FIRST EMPIRE STATE CORPORATION _______________________________________ RATIOS
CASH RATIOS CASH AFTER REPORTED: FESC ONBK PRO FORMA SYNERGIES --------- ------ ----------- ------------- Quarter-ended September 30, 1997 Return on Average Assets....................................... 1.36% 0.92% 1.23% 1.33% Return on Average Equity....................................... 18.92% 15.60% 18.10% 19.61% Net Interest Margin............................................ 4.34% 3.00% 3.95% 3.95% Efficiency Ratio............................................... 54.34% 56.10% 54.66% 51.39%
PROJECTED WITHIN 1 MONTH CAPITAL OF CONSUMMATION --------------- Quarter-ended June 30, 1997, except Projected Leverage Ratio................................................. 8.96% 7.10% 7.44% Tier 1 Capital................................................. 10.81% 12.26% 9.19% Total Capital.................................................. 13.68% 13.48% 11.63% Quarter-ended September 30, 1997 Book Value..................................................... 149.31 25.59 198.45(1)
(1) Assumes a 70% stock, 30% cash deal FIRST EMPIRE STATE CORPORATION _______________________________________ DEPOSIT RATES Nine Months Ended September 30, 1997
FESC ONBK COMBINED ----------- ----------- ------------- Now, Money Market and Escrow...................... 2.95% 2.71% 2.90% Savings Deposits.................................. 2.05% 2.48% 2.18% Time Deposits..................................... 5.60% 5.63% 5.61% ------- ------- ------- Total Interest Bearing Deposits................. 4.45% 4.62% 4.49%
FIRST EMPIRE STATE CORPORATION _______________________________________ DEPOSIT COMPOSITION At September 30, 1997 (Dollars in Millions)
FESC ONBK COMBINED ---------------------- ---------------------- ------------------------ BALANCE % OF TOTAL BALANCE % OF TOTAL BALANCE % OF TOTAL --------- ----------- --------- ----------- --------- ------------- Noninterest Bearing .................................... $ 1,358 12% $ 371 9% $ 1,729 11% Interest Bearing: Now, Money Market and Savings......................... 3,660 33 1,593 40 5,253 35 Time Deposits......................................... 6,187 55 2,061 51 8,248 54 -------- -------- -------- --------- -------- ------- Total Interest Bearing.................................. 9,847 88 3,654 91 13,501 89 -------- -------- -------- --------- -------- ------- Total Deposits.......................................... $ 11,205 100% $ 4,025 100% $ 15,230 100% Loan/Deposit Ratio...................................... 101% 73% 93% -------- --------- -------
FIRST EMPIRE STATE CORPORATION _______________________________________ IMPACT ON LOAN MIX, FUNDING AND CREDIT QUALITY At, or for 9 months ending, September 30, 1997 FESC ONBK PRO FORMA ----------- ----------- ------------- Loans/Deposits......................... 101% 73% 93% Deposits/Liabilities................... 88 77 85 Reserves/NPLs.......................... 318 109 256 NPLs/Loans............................. 0.76 1.23 0.86 NCO's/Loans (annualized)............... 0.40 0.21 0.36