CORTLAND BANCORP INC
10-K405, 1998-03-31
SAVINGS INSTITUTION, FEDERALLY CHARTERED
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<PAGE>   1
                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 10-K

[x] Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act
of 1934

For the fiscal year ended December 31, 1997.


Commission file number 0-13814
                       -------

                               Cortland Bancorp
- --------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

                 Ohio                                   34-1451118
- ------------------------------------    ----------------------------------------
 (State or other jurisdiction of          (I.R.S. Employer Identification No.)
  incorporation or organization)

       194 West Main Street
          Cortland, Ohio                                 44410
- ----------------------------------------    ------------------------------------
(Address of principal executive offices)               (Zip Code)

Registrant's telephone number, including area code:       (330) 637-8040
                                                     ---------------------------
Securities registered pursuant to Section 12(b) of the Act:        None

Securities registered pursuant to Section 12(g) of the Act:

                           Common Stock, no par value
- --------------------------------------------------------------------------------
                                (Title of Class)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or l5(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for shorter periods that the registrant was required
to file such reports) and (2) has been subject to such filing requirements for
the past 90 days. Yes x  No
                     ---   ---

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K (229.405 of the chapter) is not contained herein, and will not
be contained, to the best of registrant's knowledge, in definitive proxy or
information statements incorporated by reference in Part III of the Form 10-K or
any amendment of this Form 10-K [ x ].

The aggregate market value of the voting stock held by nonaffiliates of the
registrant as of March 10, 1998:

Common Stock, No Par Value - $66,686,254
- ----------------------------------------

     The number of shares outstanding of the issuer's classes of common stock as
of March 10, 1998:

Common Stock, No Par Value - 1,149,763 shares
- ---------------------------------------------

DOCUMENTS INCORPORATED BY REFERENCE

         Portions of the Annual Shareholders Report for the year ended December
         31, 1997 are incorporated by reference into Part I, Item VI and Part
         II.

         Portions of the Proxy Statement for the annual shareholders meeting to
         be held April 14, 1998 are incorporated by reference into Part III.


<PAGE>   2




                                CORTLAND BANCORP
                                    FORM 10-K
                                      1997

                                      INDEX

Part I                                                                Page
- ------                                                                ----

Item 1.  Business:
           General                                                     I-2
           Statistical Disclosure                                      I-4

Item 2.  Properties                                                    I-19

Item 3.  Legal Proceedings                                             I-19

Item 4.  Submission of Matters to a Vote of Security Holders           I-20

Executive Officers of the Registrant                                   I-20

Part II
- -------

Item 5.  Market for Registrant's Common Equity and
         Related Stockholder Matters                                  II-1

Item 6.  Selected Financial Data                                      II-1

Item 7.  Management's Discussion and Analysis of Financial
         Condition and Results of Operations                          II-1

Item 7A. Quantitative and Qualitative Disclosure About Market Risk    II-1

Item 8.  Financial Statements and Supplementary Data                  II-1

Item 9.  Changes in and Disagreements with Accountants on
         Accounting and Financial Disclosures                         II-1


Part III
- --------

Item 10. Directors and Executive Officers of the Registrant          III-1

Item 11. Executive Compensation                                      III-1

Item 12. Security Ownership of Certain Beneficial Owners and
         Management                                                  III-1

Item 13. Certain Relationships and Related Transactions              III-1


Part IV
- -------

Item 14. Exhibits, Financial Statement Schedules and Reports
         on Form 8-K                                                  IV-1

Signatures                                                            IV-2

Index to Exhibits                                                     IV-3



                                       I-1




<PAGE>   3




                                      PART I
                                      ------


Item 1.  Business
- -------  --------
General
- -------


                                 THE CORPORATION
                                 ---------------

     The registrant, Cortland Bancorp (also referred to as the "Corporation" or
the "Company"), is a bank holding company which was incorporated under the laws
of the State of Ohio in 1984, and is registered under the Bank Holding Company
Act of 1956, as amended. Its subsidiaries are the Cortland Savings and Banking
Company ("Cortland Banks" or the "Bank"), which was acquired at the
Corporation's inception in 1985, and New Resources Leasing Company, which was
formed in 1988. The Corporation and its subsidiaries operate in one industry,
domestic banking.

     The Corporation conducts no business activities except for investment in
securities as permitted under the Bank Holding Company Act.

     The business of the Corporation and its subsidiaries is not seasonal to any
significant extent and is not dependent on any single customer or group of
customers.

                                 CORTLAND BANKS
                                 --------------

     Cortland Banks is a full service, state chartered bank engaged in
commercial and retail banking and trust services. Cortland Banks' commercial and
consumer banking services include checking accounts, savings accounts, time
deposit accounts, commercial, mortgage and installment loans, leasing, night
depository, automated teller services, safe deposit boxes, money order services,
travelers checks, utility bill payments and other miscellaneous services
normally offered by commercial banks. In addition, Cortland Banks offers
discount brokerage services, while the Bank's Trust Department offers a broad
range of fiduciary services, including the administration of decedent and trust
estates and other personal and corporate fiduciary services. Business is
conducted at a total of thirteen offices, eight of which are located in Trumbull
County, Ohio. Three offices are located in the communities of Hiram, Windham and
Mantua, Portage County, Ohio, one office is located in the community of
Williamsfield, Ashtabula County, Ohio, and the newest office is located in the
community of Boardman, Mahoning County, Ohio. Chartered by the State of Ohio,
Cortland Banks is also a member of the Federal Reserve System.


                          NEW RESOURCES LEASING COMPANY
                          -----------------------------

     New Resources Leasing Company was formed in December 1988 as a separate
entity to handle the function of commercial and consumer leasing. The wholly
owned subsidiary has been inactive since incorporation.


                           SUPERVISION AND REGULATION
                           --------------------------

     The Corporation is subject to supervision and regulation by the Board of
Governors of the Federal Reserve System (the "Federal Reserve Board") pursuant
to the Bank Holding Company Act of 1956, as amended. Generally, this Act limits
the business of bank holding companies to owning or controlling banks and
engaging in such other activities as the Federal Reserve Board may determine to
be so closely related to banking or managing or controlling banks as to be a
proper incident thereto.

                                       I-2




<PAGE>   4



Supervision and Regulation (Continued):
     Cortland Banks, as a state banking organization, is subject to periodic
examination and regulation by the Federal Reserve Bank of Cleveland and the
State of Ohio Division of Banks. Cortland Banks is a member of the Federal
Reserve System and its deposits are insured by the Bank Insurance Fund (BIF)
administered by the Federal Deposit Insurance Corporation (FDIC).


Competition:
     Cortland Banks actively competes with state and national banks located in
the Ohio counties of Trumbull, Portage, Ashtabula and Mahoning. It also competes
with a large number of other financial institutions, such as savings and loan
associations, insurance companies, consumer finance companies, credit unions and
commercial finance and leasing companies, for deposits, loans and service
business. Money market mutual funds, brokerage houses and similar institutions
provide in a relatively unregulated environment many of the financial services
offered by banks. In the opinion of management, the principal methods of
competition are the rates of interest charged for loans, the rates of interest
paid for funds, the fees charged for services and the availability of services.

Employees:
     At March 10, 1998, the Corporation and its subsidiaries had 155 full-time
and 54 part-time employees. The Corporation considers its relations with its
employees to be satisfactory.











                                     I-3


<PAGE>   5




  Statistical Disclosure
  ----------------------




I. DISTRIBUTION OF ASSETS, LIABILITIES AND SHAREHOLDERS' EQUITY;
- ----------------------------------------------------------------
   INTEREST RATES AND INTEREST DIFFERENTIAL
   ----------------------------------------

                             AVERAGE BALANCE SHEETS
                             ----------------------

                            (In Thousands of Dollars)


     The following shows consolidated balances of average assets, liabilities
and shareholders' equity for the years indicated. The averages are based on
daily balances.

<TABLE>
<CAPTION>

           ASSETS
                                                                                1997            1996            1995
                                                                             --------        --------        --------
<S>                                                                          <C>             <C>             <C>     
Cash and due from banks                                                      $  8,671        $  8,679        $  8,293
Federal funds sold                                                              3,196             843           2,485
Trading account securities                                                        116              57               0

Investment securities:
  U.S. Treasury and other U.S. Government
    agencies and corporations                                                  92,366          92,281          74,447
  U.S. Government mortgage-backed
    pass-through certificates                                                  74,491          77,246          70,471
  States of the U.S. and political subdivisions                                17,503          16,995          15,436
  Other securities                                                              3,822           3,651           2,965
                                                                              -------         -------        --------
                       TOTAL INVESTMENT SECURITIES                            188,182         190,173         163,319
                                                                              -------         -------        --------







Total loans                                                                   175,518         160,663         153,711
  Less unearned income                                                              3               6               9
  Less allowance for loan losses                                                2,911           2,976           3,079
                                                                              -------         -------         -------
                                        NET LOANS                             172,604         157,681         150,623
                                                                              -------         -------         -------





Market Value appreciation (depreciation) of
   securities available for sale                                                  479             165            (469)
Premises and equipment                                                          5,919           6,287           6,422
Other assets                                                                    4,418           4,760           4,929
                                                                             --------        --------        --------
                                                                             $383,585        $368,645        $335,602
                                                                             ========        ========        ========

</TABLE>


                                      I-4
<PAGE>   6


                       AVERAGE BALANCE SHEETS (CONTINUED)

                           (In Thousands of Dollars)

<TABLE>
<CAPTION>
             




         LIABILITIES AND SHAREHOLDERS' EQUITY
         ------------------------------------
                                                             1997            1996            1995
                                                           --------        --------        --------
<S>                                                        <C>             <C>             <C>     
Deposits (all domestic):
  Noninterest-bearing demand deposits                      $ 42,199        $ 37,999        $ 33,716
  Interest-bearing demand deposits                           47,544          46,945          45,864
  Savings                                                    84,291          86,468          87,072
  Time                                                      146,263         146,628         129,320
                                                           --------        --------        --------
                                    TOTAL DEPOSITS          320,297         318,040         295,972
                                                           --------        --------        --------


Borrowings:
  U.S. Treasury interest-bearing demand note                    819             681             756
  Federal funds purchased                                       618           1,918           1,276
  Securities sold under agreements to repurchase              3,726           2,747           2,390
  Other borrowings under one year                             4,800               0               0
  Other borrowings over one year                             12,572           9,157           2,657
                                                           --------        --------        --------
                                  TOTAL BORROWINGS           22,535          14,503           7,079
                                                           --------        --------        --------





Other liabilities                                             2,436           1,860           2,139
                                                           --------        --------        --------
                                 TOTAL LIABILITIES          345,268         334,403         305,190
                                                           --------        --------        --------



Shareholders' Equity:
  Common stock                                                5,507           5,367           4,966
  Additional paid-in capital                                 11,668          10,665           8,363
  Retained earnings                                          20,926          18,292          17,726
  Net unrealized gain (loss) on available for sale
    debt and marketable equity securities                       216             (78)           (639)
  Less cost of common shares in treasury                          0              (4)             (4)
                                                           --------        --------        --------

                        TOTAL SHAREHOLDERS' EQUITY           38,317          34,242          30,412
                                                           --------        --------        --------
                                                           $383,585        $368,645        $335,602
                                                           ========        ========        ========

</TABLE>




                                       I-5





<PAGE>   7




                        ANALYSIS OF NET INTEREST EARNINGS
                        ---------------------------------

                            (In Thousands of Dollars)

<TABLE>
<CAPTION>


     The following schedules show the average amounts of interest-earning assets
and interest-bearing liabilities, the related amounts of interest earned or paid
and the related average yields or interest rates paid for the year indicated:


                                                                                             Interest        Average
                                                                          Average             Earned         Yield or
Year ended December 31, 1997                                            Outstanding          or Paid           Rate
- ----------------------------                                            -----------          -------           ----

<S>                                                                      <C>                 <C>                <C> 
Interest-earning assets:
  Federal funds sold                                                     $  3,196            $    178           5.6%
  Trading account securities                                                  116                   7           6.4%
  Investment securities:
    U.S. Treasury and other U.S.
      Government agencies and
      corporations                                                         92,366               6,162           6.7%
    U.S. Government mortgage-backed
      pass-through certificates                                            74,491               4,982           6.7%
    States of the U.S. and political
      subdivisions (1) (2)                                                 17,503               1,152           6.6%
    Other securities (1)                                                    3,822                 245           6.4%
                                                                         --------            --------
                 Total investment securities (l)                          188,182              12,541           6.7%
   Loans (1) (2) (4)                                                      175,515              16,057           9.1%
                                                                         --------            --------
                   Total interest-earning assets                         $367,009            $ 28,783           7.8%
                                                                         ========            ========


Interest-bearing liabilities:
  Deposits:
    Interest-bearing demand deposits                                    $  47,544            $  1,386           2.9%
    Savings                                                                84,291               2,255           2.7%
    Time                                                                  146,263               8,440           5.8%
                                                                        ---------            --------
                                  Total deposits                          278,098              12,081           4.3%
                                                                        ---------            --------

  Borrowings:
    U.S. Treasury interest-bearing
      demand note                                                             819                  42           5.1%
    Federal funds purchased                                                   618                  35           5.7%
    Securities sold under agreements
      to repurchase                                                         3,726                 177           4.8%
    Other borrowings under one year                                         4,800                 277           5.8%
    Other borrowings over one year                                         12,572                 735           5.8%
                                                                         --------            --------
                                Total borrowings                           22,535               1,266           5.6%
                                                                         --------            --------
              Total interest-bearing liabilities                         $300,633            $ 13,347           4.4%
                                                                         ========            ========

Net interest margin (3)                                                                      $ 15,436           4.2%
                                                                                             ========          =====

</TABLE>




                                       I-6



<PAGE>   8




                  ANALYSIS OF NET INTEREST EARNINGS (CONTINUED)
                  ---------------------------------------------
<TABLE>
<CAPTION>

                            (In Thousands of Dollars)


                                                                                             Interest         Average
                                                                          Average             Earned         Yield or
Year ended December 31, 1996                                            Outstanding          or Paid           Rate
- ----------------------------                                            -----------          -------           ----

<S>                                                                      <C>                 <C>                <C> 
Interest-earning assets:
  Federal funds sold                                                     $    843            $     45           5.4%
  Trading account securities                                                   57                   3           5.9%
  Investment securities:
    U.S. Treasury and other U.S.
      Government agencies and
      corporations                                                         92,281               6,075           6.6%
    U.S. Government mortgage-backed
      pass-through certificates                                            77,246               5,160           6.7%
    States of the U.S. and political
      subdivisions (1) (2)                                                 16,995               1,145           6.7%
    Other securities (1)                                                    3,651                 234           6.4%
                                                                         --------            --------
                 Total investment securities (1)                          190,173              12,614           6.6%
   Loans (1) (2) (4)                                                      160,657              14,809           9.2%
                                                                         --------            --------
                   Total interest-earning assets                         $351,730            $ 27,471           7.8%
                                                                         ========            ========


Interest-bearing liabilities:
  Deposits:
    Interest-bearing demand deposits                                    $  46,945            $  1,259           2.7%
    Savings                                                                86,468               2,319           2.7%
    Time                                                                  146,628               8,395           5.7%
                                                                        ---------            --------
                                  Total deposits                          280,041              11,973           4.3%
                                                                        ---------            --------

  Borrowings:
    U.S. Treasury interest-bearing
      demand note                                                             681                  35           5.1%
    Federal funds purchased                                                 1,918                 108           5.6%
    Securities sold under agreements
        to repurchase                                                       2,747                 120           4.4%
    Other borrowings under one year                                             0                   0
    Other borrowings over one year                                          9,157                 505           5.5%
                                                                         --------            --------
                                Total borrowings                           14,503                 768           5.3%
                                                                         --------            --------
              Total interest-bearing liabilities                         $294,544            $ 12,741           4.3%
                                                                         ========            ========

Net interest margin (3)                                                                      $ 14,730           4.2%
                                                                                             ========          =====


</TABLE>




                                     I-7





<PAGE>   9


<TABLE>
<CAPTION>

                  ANALYSIS OF NET INTEREST EARNINGS (CONTINUED)
                  ---------------------------------------------

                            (In Thousands of Dollars)



                                                                                             Interest         Average
                                                                          Average             Earned         Yield or
Year ended December 31, 1995                                            Outstanding          or Paid           Rate
- ----------------------------                                            -----------          --------        ---------- 
<S>                                                                     <C>                 <C>                 <C> 
Interest-earning assets:
  Federal funds sold                                                    $   2,485           $     146           5.9%
  Trading account securities                                                    0                   0
  Investment securities:
    U.S. Treasury and other U.S.
      Government agencies and
      corporations                                                         74,447               5,051           6.8%
    U.S. Government mortgage-backed
      pass-through certificates                                            70,471               4,571           6.5%
    States of the U.S. and political
      subdivisions (1) (2)                                                 15,436               1,024           6.6%
    Other securities (1)                                                    2,965                 187           6.3%
                                                                         --------            --------
                 Total investment securities (1)                          163,319              10,833           6.6%
   Loans (1) (2) (4)                                                      153,702              14,175           9.2%
                                                                         --------            --------
                   Total interest-earning assets                         $319,506            $ 25,154           7.9%
                                                                         ========            ========

Interest-bearing liabilities:
  Deposits:
    Interest-bearing demand deposits                                    $  45,864            $  1,177           2.6%
    Savings                                                                87,072               2,406           2.8%
    Time                                                                  129,320               7,452           5.8%
                                                                        ---------            --------
                                  Total deposits                          262,256              11,035           4.2%
                                                                        ---------            --------

  Borrowings:
    U.S. Treasury interest-bearing
      demand note                                                             756                  41           5.4%
    Federal funds purchased                                                 1,276                  78           6.1%
    Securities sold under agreements
       to repurchase                                                        2,390                 110           4.6%
    Other borrowings under one year                                             0                   0
    Other borrowings over one year                                          2,657                 157           5.9%
                                                                         --------            --------
                                Total borrowings                            7,079                 386           5.5%
                                                                         --------            --------
              Total interest-bearing liabilities                         $269,335            $ 11,421           4.2%
                                                                         ========            ========

Net interest margin (3)                                                                      $ 13,733           4.3%
                                                                                             ========          =====
<FN>

(1) The amounts are reflected on a fully taxable equivalent basis using the
statutory tax rate of 34% in 1997, 1996 and 1995. Tax-free income from states of
the U.S. and political subdivisions, other securities and loans amounted to
$755, $1 and $239 respectively, for 1997; $743, $1 and $211 respectively, for
1996; and $656, $1 and $197 respectively, for 1995.

(2) Average outstanding includes the average balance outstanding of all
nonaccrual investment securities and loans. States and political subdivisions
consist of average total principal adjusted for amortization of premium and
accretion of discount less average allowance for estimated losses, and include
both taxable and tax exempt securities. Loans consist of average total loans
less average unearned income.

(3) Net interest margin is calculated by dividing the difference between total
interest earned and total interest expensed by total interest-earning assets.

(4) Interest earned on loans includes loan fees of $44 in 1997, $89 in 1996 and
$72 in 1995.
</FN>
</TABLE>



                                       I-8


<PAGE>   10

<TABLE>
<CAPTION>



                            RATE AND VOLUME ANALYSIS
                            ------------------------

                            (In Thousands of Dollars)

     The following tables analyze by rate and volume the dollar amount of
changes in the components of the interest differential:

                                                                                  1997 Change from 1996
                                                                             ----------------------------------------
                                                                                              Change          Change
                                                                              Total           Due to          Due to
                                                                              Change          Volume           Rate
                                                                             --------        --------       ---------
<S>                                                                          <C>             <C>             <C>    
Interest Income
- ---------------
  Federal funds sold                                                         $    133        $   131         $     2
  Trading account securities                                                        4              3               1
  Investment securities:     
    U.S. Treasury and other U.S. Government
      agencies and corporations                                                    87              6              81
    U.S. Government mortgage-backed
      pass-through certificates                                                  (178)          (184)              6
    States of the U.S. and political
      subdivisions                                                                  7             34             (27)
    Other securities                                                               11             11               0
                                                                             ---------       ---------       --------
                       Total investment securities                                (73)          (133)             60
   Loans                                                                        1,248          1,360            (112)
                                                                             ---------       ---------       --------
                             Total interest income                           $  1,312        $ 1,361         $   (49)
                                                                             =========       =========       ========


Interest Expense
- ----------------
  Deposits:
    Interest-bearing demand deposits                                         $    127        $    16         $   111
    Savings                                                                       (64)           (58)             (6)
    Time                                                                           45            (21)             66
                                                                             ---------       ---------       -------
                                    Total deposits                                108            (63)            171
                                                                             ---------       ---------       -------
  Borrowings:
    U.S. Treasury interest-bearing
      demand note                                                                   7              7               0
    Federal funds purchased                                                       (73)           (74)              1
    Securities sold under agreements to repurchase                                 57             46              11
    Other borrowings under one year                                               277            277               0
    Other borrowings over one year                                                230            198              32
                                                                             ---------       ---------       -------
                                  Total borrowings                                498            454              44
                                                                             ---------       ---------       -------
                            Total interest expense                           $    606        $   391         $   215
                                                                             =========       =========       =======

</TABLE>

The change in interest due to both rate and volume has been allocated to rate
and volume changes in proportion to the relationship of the absolute dollar
amounts of the change in each.





                                       I-9


<PAGE>   11

<TABLE>
<CAPTION>


                      RATE AND VOLUME ANALYSIS (Continued)
                      ------------------------------------

                            (In Thousands of Dollars)



                                                                                 1996 Change from 1995
                                                                                 ---------------------
                                                                                           Change    Change
                                                                              Total        Due to    Due to
                                                                              Change       Volume    Rate
                                                                              ------       ------    ----
<S>                                                                          <C>          <C>      <C>      
Interest Income
- ---------------
  Federal funds sold                                                         $   (101)    $  (88)  $    (13)
  Trading account securities                                                        3          3          0
  Investment securities:
    U.S. Treasury and other U.S. Government
      agencies and corporations                                                 1,024      1,178       (154)
    U.S. Government mortgage-backed
      pass-through certificates                                                   589        449        140
    States of the U.S. and political
      subdivisions                                                                121        105         16
    Other securities                                                               47         44          3
                                                                               ------   ---------    ------
                       Total investment securities                              1,781      1,776          5
  Loans                                                                           634        641         (7)
                                                                              --------   ---------    -------
                             Total interest income                           $  2,317   $  2,332   $    (15)
                                                                              ========   =========  =========


Interest Expense
- ----------------
  Deposits:
    Interest-bearing demand deposits                                         $     82   $     28   $     54
    Savings                                                                       (87)       (17)       (70)
    Time                                                                          943        991        (48)
                                                                             --------   ---------   --------
                                    Total deposits                                938      1,002        (64)
                                                                             --------   ---------   --------
  Borrowings:
    U.S. Treasury interest-bearing
      demand note                                                                  (6)        (4)        (2)
    Federal funds purchased                                                        30         36         (6)
    Securities sold under agreements to repurchase                                 10         16         (6)
    Other borrowings under one year                                                 0          0          0
    Other borrowings over one year                                                348        359        (11)
                                                                             ---------   --------   --------
                                  Total borrowings                                382        407        (25)
                                                                             ---------   --------   --------
                            Total interest expense                           $  1,320    $ 1,409    $   (89)
                                                                             =========   ========   ========


</TABLE>








                                      I-10




<PAGE>   12



II. INVESTMENT PORTFOLIO
- ------------------------



     The following table shows the book value of investment securities by type
of obligation at the dates indicated:
<TABLE>
<CAPTION>

                            (In Thousands of Dollars)

                                                           December 31,

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

<S>                                                <C>         <C>        <C>     
U.S. Treasury and other U.S. Government
  agencies and corporations                        $ 88,660    $ 98,538   $ 81,720
U.S. Government mortgage-backed
  pass-through certificates                          74,900      74,869     79,557
States of the U.S. and political subdivisions        21,039      17,228     16,811
Other securities                                      3,997       3,739      3,622
                                                   --------    --------   --------
                                                   $188,596    $194,374   $181,710
                                                   ========    ========   ========

</TABLE>




     A summary of securities held at December 31, 1997, classified according to
the earlier of next repricing or the maturity date and the weighted average
yield for each range of maturities, is set forth below. Fixed rate
mortgage-backed securities are classified by their estimated contractual cash
flow, adjusted for current prepayment assumptions. Actual maturities may differ
from contractual maturities because borrowers may have the right to call or
prepay obligations with or without call or prepayment penalties.

<TABLE>
<CAPTION>

                            (In Thousands of Dollars)

                                                          December 31, 1997
                                                          -----------------
                                                       Book         Weighted
    Type and Maturity Grouping                         Value     Average Yield  (1)
    --------------------------                       --------    ------------------

<S>                                                 <C>             <C>  
U.S. Treasury and other U.S. Government
  agencies and corporations:
  Maturing within one year                          $ 17,912        6.36%
  Maturing after one year but within five years       27,162        6.25
  Maturing after five years but within ten years      40,960        7.07
  Maturing after ten years                             2,626        8.04
                                                    --------
      Total U.S. Treasury and other U.S.
        Government agencies and corporations        $ 88,660        6.70%
                                                    ========        =====

U.S. Government mortgage-backed
  pass-through certificates, REMICS & CMO's
  Maturing within one year                          $ 40,208        6.42%
  Maturing after one year but within five years       20,615        6.75
  Maturing after five years but within ten years      10,688        6.98
  Maturing after ten years                             3,389        6.98
                                                    --------
      Total U.S. Government mortgage-backed
        pass-through certificates, REMICS & CMO's   $ 74,900        6.62%
                                                    ========        =====


</TABLE>




                                      I-11


<PAGE>   13



II. INVESTMENT PORTFOLIO  (continued)
- -------------------------------------

<TABLE>
<CAPTION>

                            (In Thousands of Dollars)




                                                                  December 31, 1997
                                                          ---------------------------------
                                                            Book               Weighted
   Type and Maturity Grouping                               Value         Average Yield (1)
   --------------------------                             --------        -----------------

<S>                                                       <C>                  <C>  
States of the U.S. and political subdivisions:
  Maturing within one year                                $  1,745             6.79%
  Maturing after one year but within five years             11,672             6.40
  Maturing after five years but within ten years             2,614             7.56
  Maturing after ten years                                   5,008             7.39
                                                          --------
      Total States of the U.S. and
      political subdivisions                              $ 21,039             6.81%
                                                          ========            ======

Other securities:
  Maturing within one year                                $  1,878             6.04%
  Maturing after one year but within five years                  0                0
  Maturing after five years but within ten years                 0                0
  Maturing after ten years                                   2,119             6.46
                                                          --------

      Total other securities                              $  3,997             6.26%
                                                          ========            ======

<FN>
(1)   The weighted average yield has been computed by dividing the total
      interest income adjusted for amortization of premium or accretion of
      discount over the life of the security by the par value of the securities
      outstanding. The weighted average yield of tax-exempt obligations of
      states of the U.S. and political subdivisions has been calculated on a
      fully taxable equivalent basis. The amounts of adjustments to interest
      which are based on the statutory tax rate of 34% were $29, $223, $60 and
      $114 for the four ranges of maturities.

</FN>
</TABLE>


     As of December 31, 1997, there were $22,830 in callable U.S. Government
Agencies, that given current and expected interest rate environments, are likely
to be called within the one year time horizon. These securities are categorized
according to their contractual maturities, with $1,351 maturing after one year
but within five years, $19,360 maturing after five years but within ten years
and $2,119 maturing after 10 years.

     As of December 31, 1997, there were $1,579 in callable U.S. Treasury
securities and $17,586 in callable U.S. Government Agencies that, given current
and expected interest rate environments, are likely to be called within the time
frame defined as after one year but within five years. These securities are
categorized according to their contractual maturities, with $18,658 maturing
after five years but within ten years and $507 maturing after 10 years.




                                      I-12



<PAGE>   14




III. LOAN PORTFOLIO (ALL DOMESTIC)


                                 TYPES OF LOANS
                                 --------------

                            (In Thousands of Dollars)
<TABLE>
<CAPTION>


     The following schedule shows the types of loans at the dates indicated:

                                                          December 31,
                                        ---------------------------------------------
                                        1997      1996      1995      1994     1993
                                      --------  --------  --------  -------  --------
<S>                                   <C>       <C>       <C>       <C>       <C>     
1 - 4 family residential
  mortgage                            $ 77,644  $ 70,590  $ 67,099  $ 66,069  $ 68,096
Commercial mortgage                     50,015    42,367    38,371    37,554    35,014
Consumer loans                          18,990    21,300    21,254    17,247    14,539
Commercial loans                        26,022    19,355    16,658    15,101    12,898
Home equity loans                       10,064    11,136    12,353    12,854    13,403
1 - 4 family residential
  mortgages held for sale                1,756     1,361       473     1,855     1,877
                                      --------  --------  --------  --------  --------
                                      $184,491  $166,109  $156,208  $150,680  $145,827
                                      ========  ========  ========  ========  ========

</TABLE>






             MATURITIES AND SENSITIVITIES OF LOANS TO INTEREST RATES
             -------------------------------------------------------

                            (In Thousands of Dollars)


     The following schedule sets forth maturities based on remaining scheduled
repayments of principal or next repricing opportunity for loans (excluding
mortgage and consumer loans) as of December 31, 1997:
<TABLE>
<CAPTION>

                                                1 Year     1 to       Over
  Types of Loans                                or Less   5 Years   5 Years    Total
  --------------                                -------   -------   -------   ------

<S>                                            <C>       <C>       <C>       <C>     
Commercial loans                               $ 16,895  $  7,582  $  1,545  $ 26,022
Home Equity                                      10,064         0         0    10,064
                                               --------  --------  --------  --------
  Total loans (excluding
    mortgage and consumer loans)               $ 26,959  $  7,582  $  1,545  $ 36,086
                                               ========  ========  ========  ========
</TABLE>


    The following schedule sets forth loans as of December 31, 1997 based on
next repricing opportunity for floating and adjustable interest rate products,
and by remaining scheduled principal payments for loan products with fixed rates
of interest. Mortgage and consumer loans have again been excluded.
<TABLE>
<CAPTION>

                                                    1 Year      Over
        Types of Loans                             or Less    1 Year     Total
        --------------                             --------  --------  -------

<S>                                                <C>       <C>       <C>     
Floating or adjustable rates of interest           $ 25,677  $  1,067  $ 26,744
Fixed rates of interest                               1,282     8,060     9,342
                                                   --------  --------  --------
                                       Total loans $ 26,959  $  9,127  $ 36,086
                                                   ========  ========  ========

</TABLE>


                                      I-13



<PAGE>   15




                                  RISK ELEMENTS
                                  -------------
                            (In Thousands of Dollars)


     The following table sets forth the aggregate balance of underperforming
loans for each of the following categories for the years indicated:
<TABLE>
<CAPTION>

                                                        December 31,
                                    -------------------------------------------------
                                      1997       1996       1995       1994      1993
                                    --------   --------   --------   --------  ------

<S>                                <C>        <C>        <C>        <C>        <C>    
Loans accounted for on a
  nonaccrual basis                 $  1,653   $  1,450   $  1,597   $  1,909   $ 1,652

Loans contractually past due
  90 days or more as to
  interest or principal
  payments (not included in
  nonaccrual loans above)                10         18          7         14       353

Loans considered troubled debt
  restructurings (not included
  in nonaccrual loans or loans
  contractually past due above)         173        182        191        205       573

</TABLE>

     The following shows the amounts of contractual interest income and interest
income actually reflected in income on loans accounted for on a nonaccrual basis
and loans considered troubled debt restructuring as of December 31, 1997.
<TABLE>
<CAPTION>

                           (In Thousands of Dollars)

<S>                                                                  <C> 
Gross interest income that would have been recorded if the
  loans had been current in accordance with their original terms      $188

Interest income included in income on the loans                        148

</TABLE>

     A loan is placed on a nonaccrual basis whenever sufficient information is
received to question the collectibility of the loan or any time legal
proceedings are initiated involving a loan. When a loan is charged-off, any
interest that has been accrued and not collected on the loan is charged against
earnings.

     Impaired loans are generally included in nonaccrual loans. Management does
not individually evaluate certain smaller balance loans for impairment as such
loans are evaluated on an aggregate basis. These loans generally include 1 - 4
family, consumer and home equity loans. Impaired loans were evaluated using the
fair value of collateral as the measurement method. At December 31, 1997, 1996
and 1995 the recorded investment in impaired loans was $1,365, $1,162 and $231
while the allocated portion of the allowance for loan losses for such loans was
$213, $291 and $57 respectively. Interest income recognized on impaired loans
using the cash basis was $116, $92 and $18 respectively.

     As of December 31, 1997, there were $676 in loans, not included in the
above categories and not considered impaired, but which can be considered
potential problem loans. Management does not currently anticipate any loss as a
result of these potential problem loans.

     Any loans classified for regulatory purposes as loss, doubtful,
substandard, or special mention that have not been disclosed above do not (i)
represent or result from trends or uncertainties which management reasonably
expects will materially impact future operating results, liquidity, or capital
resources, or (ii) represent material credits about which management is aware of
any information which causes management to have serious doubts as to the ability
of such borrowers to comply with the loan repayment terms.









                                   I-14



<PAGE>   16




IV. SUMMARY OF LOAN LOSS EXPERIENCE
- -----------------------------------

     The following is an analysis of the allowance for loan losses for the
periods indicated:

<TABLE>
<CAPTION>

                            (In Thousands of Dollars)


                                                       December 31,
                                      --------------------------------------------
                                         1997     1996     1995      1994     1993
                                      --------  -------  --------  -------  ------

<S>                                   <C>      <C>      <C>       <C>      <C>    
Balance at beginning of year          $  2,966 $ 3,011  $ 3,081   $ 3,139  $ 3,415
Loan losses:
  1 - 4 family residential
    mortgages                              (21)     (5)     (69)      (72)    (172)
  Commercial mortgages                     (16)      0        0       (27)     (42)
  Consumer loans                          (202)   (167)    (220)     (141)    (271)
  Commercial loans                           0      (4)     (78)      (48)    (123)
  Home equity loans                        (13)      0        0         0       (7)
                                       --------  ------  -------   -------  -------

                                          (252)   (176)    (367)     (288)    (615)
                                       --------  ------  -------   -------  -------
Recoveries on previous
loan losses:
  1 - 4 family residential
    mortgages                                2        3        4         4       26
  Commercial mortgages                       0        0       78         6       28
  Consumer loans                            85       72      152       156      202
  Commercial loans                          11       56       63        64       83
  Home equity loans                          5        0        0         0        0
                                       --------  -------  -------  --------  ------

                                           103      131      297       230      339
                                       --------  -------  -------  --------  ------
Net loan losses                           (149)     (45)     (70)      (58)    (276)
                                       --------  -------  -------  --------  -------

Provision charged to
  operations                                 0         0       0         0        0
                                       --------  -------  -------  -------  -------
Balance at end of year                 $ 2,817   $ 2,966  $ 3,011  $ 3,081  $ 3,139
                                       ========  =======  =======  =======  =======

Ratio of net loan losses to
  average net loans
  outstanding                              .09%      .03%     .05%     .04%     .19%
                                          =====     =====    =====    =====    =====

</TABLE>







     For each of the periods presented above, the provision for loan losses
charged to operations is based on management's judgment after taking into
consideration all known factors connected with the collectibility of the
existing portfolio. Management evaluates the portfolio in light of economic
conditions, changes in the nature and volume of the portfolio, industry
standards and other relevant factors. Specific factors considered by management
in determining the amounts charged to operations include previous loan loss
experience, the status of past due interest and principal payments, the quality
of financial information supplied by the customers and the general economic
condition present in the lending area of the Corporation's bank subsidiary.




                                      I-15





<PAGE>   17

IV. SUMMARY OF LOAN LOSS EXPERIENCE (continued)
- -----------------------------------------------



     The following is an allocation of the allowance for loan losses. The
allowance has been allocated according to the amount deemed to be reasonably
necessary to provide for the possibility of losses being incurred within the
following categories of loans as of the dates indicated:

<TABLE>
<CAPTION>
                            (In Thousands of Dollars)

                                                 December 31,
                             ---------------------------------------------------
       Types of Loans          1997       1996       1995       1994       1993
       --------------        --------   --------   --------   --------   ------

<S>                          <C>        <C>        <C>         <C>        <C>   
1 - 4 family residential
  mortgage                   $   427    $   387    $   351     $  385     $  405
Commercial mortgage            1,378      1,179      1,118      1,223      1,029
Consumer loans                   278        410        416        407        424
Commercial loans                 283        325        239        207        192
Home equity loans                 25         55         61         63         67
Unallocated portion              426        610        826        796      1,022
                             -------   --------   --------   --------   --------
                             $ 2,817   $  2,966   $  3,011   $  3,081   $  3,139
                             =======   ========   ========   ========   ========
</TABLE>

     The allocation of the allowance as shown in the table above should not be
interpreted as an indication that loan losses in 1998 will occur in the same
proportions or that the allocation indicates future loan loss trends.
Furthermore, the portion allocated to each loan category is not the total amount
available for future losses that might occur within such categories since the
total allowance is a general allowance applicable to the entire portfolio.



     The percentage of loans in each category to total loans is shown in the
following table:

<TABLE>
<CAPTION>

                                                December 31,
                              ----------------------------------------------
       Types of Loans           1997      1996      1995      1994      1993
       --------------         --------  --------  --------  --------  ------

<S>                             <C>       <C>       <C>       <C>       <C>  
1 - 4 family residential
  mortgage                      43.1%     43.3%     43.3%     45.1%     48.0%
Commercial mortgages            27.1      25.5      24.6      24.9      24.0
Consumer loans                  10.3      12.8      13.6      11.5      10.0
Commercial loans                14.1      11.7      10.6      10.0       8.8
Home equity loans                5.4       6.7       7.9       8.5       9.2
                              --------  -------  --------  --------  -------
                               100.0%    100.0%    100.0%    100.0%    100.0%
                              ========  =======  ========  ========  ========

</TABLE>

                      LOAN COMMITMENTS AND LINES OF CREDIT
                      ------------------------------------


     In the normal course of business, the bank subsidiary has extended various
commitments for credit. Commitments for mortgages, revolving lines of credit and
letters of credit generally are extended for a period of one month up to one
year. Normally, no fees are charged on any unused portion. Fees are typically
charged for the issuance of a letter of credit.






                                      I-16







<PAGE>   18




V. DEPOSITS (ALL DOMESTIC)
- --------------------------

     The following table shows the classification of average deposits for the
periods indicated:

<TABLE>
<CAPTION>

                            (In Thousands of Dollars)

          Average Balance                            1997      1996      1995
          ---------------                          --------  --------  ------

<S>                                                <C>       <C>       <C>     
Noninterest-bearing demand deposits                $ 42,199  $ 37,999  $ 33,716
Interest-bearing demand deposits                     47,544    46,945    45,864
Savings                                              84,291    86,468    87,072
Time deposits                                       146,263   146,628   129,320
                                                   --------  --------  --------
                            Total average deposits $320,297  $318,040  $295,972
                                                   ========  ========  ========

</TABLE>








     The following shows the average rate paid on the following deposit
categories for the periods indicated:

<TABLE>
<CAPTION>

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

<S>                                                    <C>      <C>        <C> 
Interest-bearing demand deposits                       2.9%     2.7%       2.6%
Savings                                                2.7      2.7        2.8
Time deposits                                          5.8      5.7        5.8

</TABLE>










     A summary of time deposits of $100,000 or more as of December 31, 1997 by
maturity range is shown below:

<TABLE>
<CAPTION>

                            (In Thousands of Dollars)

                                                             Other
                                             Certificates     Time
                                              of Deposit    Deposits    Total
                                              ----------    --------    -----

<S>                                            <C>          <C>        <C>     
3 months or less remaining until maturity      $  8,464     $    405   $  8,869
3 to 6 months remaining until maturity            4,793            0      4,793
6 to 12 months remaining until maturity           5,668          325      5,993
Over 12 months remaining until maturity           6,554        3,428      9,982
                                               ---------    ---------  --------
                            Total outstanding  $ 25,479     $  4,158   $ 29,637
                                               =========    =========  ========

</TABLE>








                                      I-17

<PAGE>   19



VI. RETURN ON EQUITY AND ASSETS
- -------------------------------

     Information relating to Return on Equity and Assets is set forth in the
Corporation's 1997 Annual Report to Shareholders, page 27, Selected Financial
Data.





                                      I-18



<PAGE>   20




Item 2.  Properties
- -------  ----------


                           CORTLAND BANCORP'S PROPERTY
                           ---------------------------

     Cortland Bancorp owns no property. Operations are conducted at 194 West
Main Street, Cortland, Ohio.

                            CORTLAND BANKS' PROPERTY
                            ------------------------

     Cortland Banks' main office (as described in its charter) is located at 194
West Main Street, Cortland, Ohio. Administrative offices are located at the main
office.

The other offices are:

   Popular Name                              Address
   ------------                              -------

Brookfield Office            7325 Warren-Sharon Road, Brookfield, Ohio
Vienna Office                4434 Warren-Sharon Road, Vienna, Ohio
Windham Office               9690 East Center Street, Windham, Ohio
Bristol Office               6090 State Route 45, Bristolville, Ohio
Williamsfield Office         State Routes 322 and 7, Williamsfield, Ohio
Hiram Office                 6821 Wakefield Road, Hiram, Ohio
Warren Office                2935 Elm Road, Warren, Ohio
Hubbard Office               890 West Liberty Street, Hubbard, Ohio
Mantua Office                10521 Main Street, Mantua, Ohio
Niles Office                 6050 Youngstown Warren Rd., Niles, Ohio
North Bloomfield Office      8837 State Route 45, North Bloomfield, Ohio
Boardman Office              8580 South Avenue, Youngstown, Ohio

     The Brookfield, Windham, Hubbard, Mantua, Niles and Boardman offices are
leased, while all of the other above offices are owned by Cortland Banks.

Item 3.  Legal Proceedings
- -------  -----------------

     The Company's subsidiary bank was a defendant in a class action lawsuit
Frank Slentz, Et Al. V. Cortland Savings and Banking Company, involving
purchased interests in two campgrounds.

     On October 20, 1997 the judge presiding over this case filed a judgment
entry dismissing all claims against the Bank without prejudice. The judgment was
appealed by the plaintiffs. The ultimate outcome of this litigation presently
cannot be determined, and therefore no provision for any liability relative to
such litigation has been made in the accompanying consolidated financial
statements.

     The Bank is also involved in other legal actions arising in the ordinary
course of business. In the opinion of management, the outcome of these matters
is not expected to have a material effect on the Company.





                                     I-19


<PAGE>   21


Item 4.  Submission of Matters to a Vote of Security Holders
- -------  ---------------------------------------------------

     No matters were submitted to a vote of security holders during the fourth
quarter of the fiscal year covered by this report.




Executive Officers of the Registrant
- ------------------------------------

     The names, ages and positions of the executive officers as of March 10,
1998 are as follows:

            Name                       Age                  Position Held
            ----                       ---                  -------------

     Rodger W. Platt                   62              Chairman of the Board,
                                                         President and Director
     Dennis E. Linville                47              Executive Vice President,
                                                         Secretary and Director
     Lawrence A. Fantauzzi             50              Controller/Treasurer and
                                                         Chief Financial Officer
     James M. Gasior                   38              Vice President and Chief
                                                         Operations Officer

     All of the officers listed above will hold office until the next annual
meeting of shareholders and until their successors are duly elected and
qualified.





Principal Occupation and Business Experience of Executive Officers

     During the past five years the business experience of each of the executive
officers has been as follows:

     Rodger W. Platt has been Chairman of the Board of Cortland Bancorp and
the subsidiary bank since November 1987. He has been a Director and President of
Cortland Bancorp since its formation in April of 1985. He has been a Director of
the subsidiary bank since l974 and has been President since 1976.

     Dennis E. Linville has been Executive Vice President of Cortland Bancorp
and the subsidiary bank since November 1987. He became a Director of the
subsidiary bank in June of 1989. He has been a Director of Cortland Bancorp and
New Resources Leasing Company since December 1988. He has been the Secretary of
Cortland Bancorp since 1985 and Secretary of the subsidiary bank since l984.

     Lawrence A. Fantauzzi has been the Controller of Cortland Bancorp and the
subsidiary bank since April 1987. He became Treasurer and Chief Financial
Officer of Cortland Bancorp and the subsidiary bank in December 1992. He became
a Director of New Resources Leasing Company in November 1995, and Senior Vice
President of the subsidiary bank in April 1996.

     James M. Gasior has been the Vice President and Chief Operations Officer of
Cortland Bancorp since April 1995. He has been the Vice President and Chief
Operations Officer of the subsidiary bank since June 1993. He became a Director
of New Resources Leasing Company in November 1995, and Senior Vice President of
the subsidiary bank in April 1996. Prior to June 1993, he was Chief Audit
Officer of the subsidiary bank.




                                     I-20



<PAGE>   22

                                    PART II
                                    -------

         Information relating to Items 5, 6, 7, 7A and 8 is set forth in the
Corporation's 1997 Annual Report to Shareholders under the pages indicated below
and is incorporated herein by reference:


                                                                  Pages in 1997
                                                                  Annual Report
                                                                 to Shareholders
                                                                 ---------------

ITEM 5.   MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED          
          SHAREHOLDER MATTERS                                             41

          DISCUSSION OF DIVIDEND RESTRICTIONS                             24

ITEM 6.   SELECTED FINANCIAL DATA                                         27

ITEM 7.   MANAGEMENT'S DISCUSSION AND ANALYSIS OF
          FINANCIAL CONDITION AND RESULTS OF OPERATIONS                28-40

ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT
          MARKET RISK                                                  20-21,
                                                                       37-38

         Management considers interest rate risk to be the Company's principal
source of market risk. Interest rate risk is measured as the impact of interest
rate changes on the Company's net interest income. Components of interest rate
risk comprise repricing risk, basis risk and yield curve risk. Repricing risk
arises due to timing differences in the repricing of assets and liabilities as
interest rate changes occur. Basis risk occurs when repricing assets and
liabilities reference different key rates. Yield curve risk arises when a shift
occurs in the relationship among key rates across the maturity spectrum.

         The effective management of interest rate risk seeks to limit the
adverse impact of interest rate changes on the Company's net interest margin,
providing the Company with the best opportunity for maintaining consistent
earnings growth. Toward this end, management uses computer simulation to model 
the Company's financial performance under varying interest rate scenarios. These
scenarios may reflect changes in the level of interest rates, changes in the
shape of the yield curve, and changes in interest rate relationships.

         The simulation model allows management to test and evaluate
alternative responses to a changing interest rate environment. Typically when
confronted with a heightened risk of rising interest rates, the Company will
evaluate strategies that shorten investment and loan repricing intervals and
maturities, emphasize the acquisition of floating rate over fixed rate assets,
and lengthen the maturities of liability funding sources. When the risk of
falling rates is paramount, management will consider strategies that shorten the
maturities of funding sources, lengthen the repricing intervals and maturities
of investments and loans, and emphasize the acquisition of fixed rate assets
over floating rate assets.

         The most significant assumptions used in the simulation relate to the
cash flows and repricing characteristics of the Company's balance sheet. 
Repricing and runoff rate assumptions are based upon specific product 
parameters modified by historical trends and internal projections. These 
assumptions are periodically reviewed and benchmarked against historical
results. Actual results may differ from simulated results not only due to the
timing, magnitude and frequency of interest rate changes, but also due to
changes in general economic conditions, changes in customer preferences and
behavior, and changes in strategies by both existing and potential competitors.


                                      II-1
<PAGE>   23

ITEM 7A.   QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
           (continued)

         The following table shows the Company's current estimate of interest
rate sensitivity based on the composition of its balance sheet at December 31,
1997. For purposes of this analysis, short term interest rates as measured by
the federal funds rate and the prime lending rate are assumed to increase
(decrease) gradually over the next twelve months reaching a level 300 basis
points higher (lower) than the rates in effect at December 31, 1997. Under the
rising rate scenario, the shape of the yield curve is assumed to flatten and
then invert, with short term rates exceeding long term rates. Under the falling
rate scenario, the yield curve is assumed to steepen.

         One measure of the yield curve's shape is the difference between the 
yield on the ten year Treasury and the three month Treasury. At December 31, 
1997 this difference was approximately 39 basis points, indicating a 
relatively flat yield curve. Under the falling rate scenario, this difference 
widens to a positive 193 basis points. Under the rising rate scenario, this 
difference is a negative 30 basis points, indicating an inverted yield curve 
where short term rates exceed long term rates.

         The base case against which interest rate sensitivity is measured
assumes no change in short term rates. The base case also assumes no growth in
assets and liabilities and no change in asset or liability mix. Under these
simulated conditions, the base case projects net interest income of $15,311 for
the year ending in 1998.

                   Simulated Net Interest Income Sensitivity
                 For The Twelve Months Ending December 31, 1998

                             (Amounts in thousands)


                                                      CHANGE IN NET INTEREST
                                                      INCOME FROM BASE CASE
                                                      ----------------------
                                        NET INTEREST
CHANGE IN INTEREST RATES                   INCOME       $ CHANGE    % CHANGE
- ------------------------                ------------    --------    --------

Graduated increase of +300 basis points  $15,064        $(247)       (1.6)%
Short term rates unchanged (base case)    15,311        
Graduated decrease of -300 basis points   15,238          (73)       (0.5)%

         The level of interest rate risk indicated is within limits that
management considers acceptable. However, given that interest rate movements
can be sudden and unanticipated, and are increasingly influenced by global
events and circumstances beyond the purview of the Federal Reserve, no
assurances can be made that interest rate movements will not impact key
assumptions and parameters in a manner not presently embodied by the model.

         It is management's opinion that hedging instruments currently
available are not a cost effective means of controlling interest rate risk for
the Company. Accordingly, the Company does not currently use financial
derivatives, such as interest rate options, swaps, caps, floors or other similar
instruments.

ITEM 8.    FINANCIAL STATEMENTS AND ACCOMPANYING INFORMATION      1-26

ITEM 9.    CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS
           ON ACCOUNTING AND FINANCIAL DISCLOSURES

           None

                                      II-2
<PAGE>   24




                                    PART III
                                    --------





Item 10.  Directors and Executive Officers of the Registrant
- --------  --------------------------------------------------

     Information relating to directors of the Corporation will be set forth in
the Corporation's definitive proxy statement to be filed with the Securities and
Exchange Commission in connection with its annual meeting of shareholders to be
held April 14, 1998. Such information is incorporated herein by reference.
Information relating to executive officers of the Corporation is set forth in
Part I. Pages 2-6 and 9






Item 11.  Executive Compensation
- --------  ----------------------

     Information relating to this item will be set forth in the Corporation's
definitive proxy statement to be filed with the Securities and Exchange
Commission in connection with its annual meeting of shareholders to be held
April 14, 1998. Such information is incorporated herein by reference. Pages 7-9






Item 12.  Security Ownership of Certain Beneficial Owners and Management
- --------  --------------------------------------------------------------

          None




Item 13.  Certain Relationships and Related Transactions
- --------  ----------------------------------------------

     Information relating to this item will be set forth in the Corporation's
definitive proxy statement to be filed with the Securities and Exchange
Commission in connection with its annual meeting of shareholders to be held
April 14, 1998. Such information is incorporated herein by reference. Pages 2
and 6



                                      III-1




<PAGE>   25




                                     PART IV
                                     -------





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



(a) 1. Financial Statements
       --------------------

       Included in Part II of this report:

            Item 8., Financial Statements and Accompanying Information, is set
            forth in the Corporation's 1997 Annual Report to Shareholders and is
            incorporated by reference in Part II of this report.


(a) 2. Financial Statement Schedules
       -----------------------------

       Included in Part IV of this report as Exhibit 23:

            Independent Accountants' Consent

            Schedules:
                 All schedules are omitted because they are not applicable.


(a) 3. Exhibits
       --------

       The exhibits filed or incorporated by reference as a part of this report
       are listed in the Index to Exhibits which appears at page IV-3 hereof and
       is incorporated herein by reference.


(b)    Report on Form 8-K
       ------------------

       No reports on Form 8-K were filed for the three months ended December 31,
       1997.




                                      IV-1






<PAGE>   26




                                      SIGNATURES



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

                                          CORTLAND BANCORP


     March 10, 1998                       By  Rodger W. Platt, President
- --------------------------                    --------------------------
           Date


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


                                   Chairman of the Board,
Rodger W. Platt                    President and Director     March 10, 1998
- --------------------------------                            ----------------
                                   (Principal Executive     Date
                                    Officer)

                                   Executive Vice
                                   President, Secretary
Dennis E. Linville                 and Director               March 10, 1998
- --------------------------------                            ----------------
                                                            Date

P. Bennett Bowers                  Director                   March 10, 1998
- --------------------------------                            ----------------
                                                            Date

David C. Cole                      Director                   March 10, 1998
- --------------------------------                            ----------------
                                                            Date

George E. Gessner                  Director                   March 10, 1998
- --------------------------------                            ----------------
                                                            Date

William A. Hagood                  Director                   March 10, 1998
- --------------------------------                            ----------------
                                                            Date

James E. Hoffman, III              Director                   March 10, 1998
- --------------------------------                            ----------------
                                                            Date

Richard L. Hoover                  Director                   March 10, 1998
- --------------------------------                            ----------------
                                                            Date

K. Ray Mahan                       Director                   March 10, 1998
- --------------------------------                            ----------------
                                                            Date

Timothy K. Woofter                 Director                   March 10, 1998
- --------------------------------                            ----------------
                                                            Date

Lawrence A. Fantauzzi              Controller/Treasurer       March 10, 1998
- --------------------------------                            ----------------
                                   (Principal Financial     Date
                                   and Principal Accounting
                                   Officer)

James M. Gasior                    Vice President & Chief     March 10, 1998
- --------------------------------                            ----------------
                                   Operations Officer       Date








                                      IV-2







<PAGE>   27


                                INDEX TO EXHIBITS
                                -----------------


     The following exhibits are filed or incorporated by reference as part of
this report:

 3.l.  Articles of Incorporation of the Corporation as currently in effect and
any amendments thereto (incorporated by reference to Exhibit 3 of the
Corporation's Report on Form S-1 filed February 5, 1988).

 3.2.  Bylaws of the Corporation as currently in effect (incorporated by
reference to Exhibit 3a of the Corporation's Report on Form S-l filed February
5, 1988).

 4     The rights of holders of equity securities are defined in portions of the
Articles of Incorporation and Bylaws as referenced in 3.l. and 3.2.

 11    Statement regarding computation of earnings per share (filed herewith).

 13    Annual Report to security holders (filed herewith).

 21    Subsidiaries of the Registrant (filed herewith).

 23    Consents of experts and counsel - Consent of independent accountants
       (filed herewith).

 27    Financial Data Schedule (filed herewith).

     Copies of any exhibits will be furnished to shareholders upon written
request. Requests should be directed to Dennis E. Linville, Secretary, Cortland
Bancorp, 194 West Main Street, Cortland, Ohio 44410.





                                      IV-3


<PAGE>   1



                                                                      Exhibit 11







                        CORTLAND BANCORP AND SUBSIDIARIES

              STATEMENT REGARDING COMPUTATION OF EARNINGS PER SHARE
              -----------------------------------------------------



<TABLE>
<CAPTION>

                                               Years ended December 31,
                                           --------------------------------
                                              1997       1996        1995
                                           ---------   ---------   ---------

<S>                                         <C>         <C>        <C>      
Average shares outstanding                  1,132,869   1,107,480   1,083,535

Net Income ($000 Omitted)                     $ 4,454     $ 4,110     $ 3,289

Earnings per share                            $  3.93     $  3.71     $  3.04

</TABLE>


     Average shares outstanding and earnings per share have been restated to
give retroactive effect to the 3% stock dividends paid as of January 1, 1998,
1997 and 1996.




<PAGE>   1
                                                                     Exhibit 13
                            [CORTLAND BANCORP LOGO]
 
                               1997 Annual Report
<PAGE>   2
 
- --------------------------------------------------------------------------------
                                                         CONTENTS
                                                    Chairman's Message
 
                                  ----------------------------------------------
                                                             1
 
                                             Brief Description of the Business
 
                                  ----------------------------------------------
                                                             3
 
                                              Report of Independent Auditors
 
                                  ----------------------------------------------
                                                             4
 
                                             Consolidated Statements of Income
 
                                  ----------------------------------------------
                                                             5
 
                                                Consolidated Balance Sheets
 
                                  ----------------------------------------------
                                                             6
 
                                                Consolidated Statements of
                                                   Shareholders' Equity
 
                                  ----------------------------------------------
                                                             7
 
                                           Consolidated Statements of Cash Flows
 
                                  ----------------------------------------------
                                                             8
 
                                            Notes to the Consolidated Financial
                                                        Statements
 
                                  ----------------------------------------------
                                                             9
 
                                                    Three Year Summary
                                            Average Balances, Yields and Rates
 
                                  ----------------------------------------------
                                                            25
 
                                                  Selected Financial Data
 
                                  ----------------------------------------------
                                                            27
 
                                           Management's Discussion and Analysis
 
                                  ----------------------------------------------
                                                            28
 
                                            Information as to Stock Prices and
                                                         Dividends
 
                                  ----------------------------------------------
                                                            41
 
                                                     Cortland Bancorp
                                                  Directors and Officers
 
                                  ----------------------------------------------
                                                            42
 
                                                Cortland Savings & Banking
                                                  Directors and Officers
 
                                  ----------------------------------------------
                                                            43
 
- --------------------------------------------------------------------------------
 
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   3
 
CHAIRMAN'S MESSAGE
 
- --------------------------------------------------------------------------------
 
TO OUR SHAREHOLDERS:
 
As we approach the end of the second millennium all seems right with the world.
We find ourselves in the seventh year of the current economic expansion, making
it one of the longest on record. Typically, at this stage of the economic cycle,
activity begins to wane as imbalances develop that eventually precipitate
recession.
 
Instead, 1997 was another year of plentiful surprises. Economic growth
accelerated to a rate well above trend. Unemployment fell to rates well below
trend. Productivity registered gains much more typical of the earlier rather
than latter stages of the business cycle. Already low inflation rates continued
to decline even further, despite dire warnings to the contrary (some statistical
nonsense about too many people working causing inflation).
 
As 1997 began to wind down, the federal government rang up the current month's
receipts and expenditures only to find the budget in balance years ahead of
schedule. Stock markets soared, interest rates sagged, and the Tribe took a one
run lead into the ninth inning of game seven of the 1997 World Series. Folks,
can it get much better than this?
 
But then the Tribe dropped game seven in eleven. The Dow lopped off a record
554.26 points the very next day. (A most severe response, even for Tribe fans.
Who would have thought that there were that many Tribe fans? Who would have
thought that they owned so much stock?) Economic storm clouds gathered on the
Pacific rim pounding Asian economies to the depths of depression. (El Nino?)
Scandal surfaced along the Potomac. (La Nina?) Saddam balked. The Air Force
scrambled. Perhaps we're not quite ready for nirvana?
 
It may not have been nirvana, but 1997 was pretty darn good. Net income for 1997
of $4.454 million topped last year's $4.11 million by 8.4%, and marked the
fourth consecutive year that the Company established record earnings. Moderate
growth of 4.3% in average earning assets (loans, investments and federal funds)
coupled with a modest 2.4% increase in net non-interest expenses (total other
expenses less total other income) were the keys to the improvement.
 
Earnings per share climbed to $3.93 from the $3.71 recorded in 1996. The return
on average assets rose to 1.16% from last year's 1.11%. Return on equity of
11.6% slipped a notch from the 12.0% reached last year, but still stood above
the 10.9% average of the preceding five years.
 
Capital ratios remained strong, as the leverage capital ratio climbed above 10%
while the risk-based capital ratio remained above 22%. Our exceptional strength,
here, is a source of considerable strategic flexibility at a time of rapid
regulatory, competitive and technological change.
 
This combination of moderate asset growth, solid earnings growth and abundant
capital allowed us to boost the percentage of earnings paid out as dividends to
our shareholders to 37% from the previous 30%. Cash dividends in 1997 totaled
$1.46 per share compared to $1.12 in 1996 (both figures have been adjusted for
the 3% stock dividend). Despite the more generous payout, book value per share
climbed to $35.33 from last year's $32.25, an increase of 9.6%.
 
All of these factors helped push the price for Cortland Bancorp stock to $59 per
share by yearend. The total return (price appreciation plus dividends) for
Cortland Bancorp investors in 1997 was a very healthy 50%. That easily
outdistanced the 33% return registered by the S&P 500 Index, but fell short of
the 70% return for SNL's Index of banks with assets under $500 million (SNL
Index). With the banking industry continuing to consolidate, bank stocks in 1997
remained "hot-hot-hot." Over the past five years, the annual compound rate of
return for both the stock of Cortland Bancorp and the SNL Index has been 33%,
overshadowing a very respectable showing of 20% on the part of the S&P 500
Index.
 
Profitable growth is the keystone to realizing that kind of performance.
Frequently, that means tapping new markets, and that's just what we did in 1997.
During the third quarter we celebrated the opening of our thirteenth office,
located along the Boardman-Poland border in southern Mahoning County, a
particularly vibrant economic market. Open less than six months, this office has
quickly established a presence in the community, with more than $5 million in
loans already under management by yearend.
 
Overall, loans in 1997 increased by $18.4 million, representing an annual growth
rate of 11%. Residential mortgage originations nearly doubled, with the bulk of
the increased activity occurring in the
 
- --------------------------------------------------------------------------------
 
                                                                          1
<PAGE>   4
                       
- --------------------------------------------------------------------------------
 
latter half of 1997. This acceleration in activity reflects the addition of an
experienced mortgage banker, expanded product offerings, new investor outlets,
improved realtor relations and more favorable economic, tax and interest rate
environments.
 
Our emphasis on developing strategic relationships in the medium-to-small
business sector continues to find strong support in the communities we serve.
Despite considerable competitive pressure from the super-regional banks, we are
finding that lots of folks prefer our personal, hometown style of banking.
Commercial lending's share of the loan portfolio, which was just 31.9% five
years ago, climbed to 41.2%, up from 37.2% last year. Despite strong growth,
adherence to strict underwriting standards has enabled us to maintain a high
level of asset quality with credit losses held to a minimum.
 
As we head into 1998, we simply want more. We want more and we will have more.
Tapping new markets such as the Boardman-Poland corridor is only part of the
answer. We must also improve our penetration and coverage of existing markets to
better leverage our resources. To accomplish this, we will realign our branch
lending and operations structure in 1998. This realignment will not only enhance
our business development opportunities, but also extend access of our particular
brand of community banking to a greater number of potential customers. We not
only expect to significantly increase loan volume, but to also create a more
highly focused and productive customer service environment. One that stimulates
innovation, leverages our investment in technology, and thrives on customer
satisfaction. One that seeks not only new customers, but new opportunities to
leverage existing customer relationships.
 
Over the past several years, deposits in the banking industry have been
particularly hard to come by. Market share has been eroded by fierce competition
from brokerage firms, insurance companies and mutual funds. The long bull run in
equities begun in 1982 means that an entire generation has yet to experience the
downside risk of a protracted contraction in stock market values. Unless the
threat of such downside risk is perceived as real, the intrinsic value of
federal deposit insurance is diminished.
 
Cortland Banks has been fortunate over the years as we have not experienced this
erosion to our deposit base. The year-over-year decrease in our deposits this
year reflects a $10 million reduction in the amount of volatile public funds.
When this component is excluded, deposits exhibit a year-over-year increase of
3.2%. We are particularly pleased that average non-interest bearing checking
balances increased by 11.1% last year. These important core accounts represented
only 8.1% of the deposit mix five years ago. Today, they represent 13.2% of
average total deposits, providing us with much better balance in the mix of our
funds.
 
During 1997 we upgraded and expanded our ATM network. We also introduced
customers to our new debit card. Both products provide customers with increased
convenience. Both products will contribute significantly to increased fee income
in the future. During 1998, we will be conducting a thorough review of our
deposit products to ensure that the products we offer are competitive and
meeting customers' needs. Look for us to roll out some new offerings as a
result.
 
We remain as committed as ever to community banking, but recognize that the
nature of community is shifting. The boundaries are beginning to blur.
Technology is shrinking the world. Our sense of community is rapidly evolving to
a virtual one. Yet we remain the same. Dedicated to helping others make their
particular dream a reality by providing the finest, friendliest banking services
anywhere on the globe.
 
We couldn't do any of it without you, our shareholders. Thanks for all of your
support.
 
Sincerely,
 
/s/ Rodger W. Platt
 
Rodger W. Platt
Chairman and President
 
- --------------------------------------------------------------------------------
                                                                          2
                                                        [CORTLAND BANCORP LOGO]
<PAGE>   5
 
BRIEF DESCRIPTION OF THE BUSINESS
 
- --------------------------------------------------------------------------------
 
CORTLAND BANCORP
 
Cortland Bancorp (the "Company") was incorporated under the laws of the State of
Ohio in 1984. The Company is a one bank holding company registered under the
Bank Holding Company Act of 1956, as amended. The principal activity of the
Company is to own, manage and supervise the Cortland Savings and Banking Company
("Cortland Banks" or the "Bank"). The Company presently owns all of the
outstanding shares of the Bank. The Company provides managerial resources to,
and coordinates and evaluates the activities of, the Bank.
 
The Company is subject to supervision and regulation by the Board of Governors
of the Federal Reserve System (the "Federal Reserve Board") pursuant to the Bank
Holding Company Act of 1956, as amended. Generally, this Act limits the business
of bank holding companies to owning or controlling banks and engaging in such
other activities as the Federal Reserve Board may determine to be so closely
related to banking or managing or controlling banks as to be a proper incident
thereto.
 
The Company conducts no other business activities except for investments in
securities as permitted under the Bank Holding Company Act. The business of the
Company and the Bank is not seasonal to any significant extent and is not
dependent on any single customer or group of customers.
 
THE CORTLAND SAVINGS
AND BANKING COMPANY
 
The Cortland Savings and Banking Company is a full service state bank engaged in
commercial and retail banking and trust services. The Bank's services include
checking accounts, savings accounts, time deposit accounts, commercial, mortgage
and installment loans, leasing, credit card services, night depository,
automated teller services, safe deposit boxes, money order services, traveler's
checks, utility bill payments and other miscellaneous services normally offered
by commercial banks. Cortland Banks also offers discount brokerage services,
while the Bank's trust department offers a broad range of fiduciary services,
including the administration of decedent and trust estates and other personal
and corporate fiduciary services.
 
Business is conducted at a total of thirteen offices, eight of which are located
in Trumbull County, Ohio. Three offices are located in the communities of Hiram,
Windham and Mantua, all in Portage County, Ohio while one office is located in
the community of Williamsfield, Ashtabula County, Ohio. The newest office is
located in the community of Boardman, Mahoning County, Ohio.
 
The Bank, as a state chartered banking organization and member of the Federal
Reserve System, is subject to periodic examination and regulation by both the
Federal Reserve Bank of Cleveland and the State of Ohio Division of Banks. These
examinations, which include such areas as capital, liquidity, asset quality,
management practices and other aspects of the Bank's operations, are primarily
for the protection of the Bank's depositors and not for its stockholders. In
addition to these regular examinations, the Bank must furnish periodic reports
to the regulatory authorities containing a full and accurate statement of its
affairs. The Bank's deposits are insured by the Federal Deposit Insurance
Corporation (FDIC) up to the statutory limit of $100,000 per customer.
 
COMPETITION
 
Cortland Banks actively competes with state and national banks located in
Northeast Ohio and Western Pennsylvania. It also competes for deposits, loans
and other service business with a large number of other financial institutions,
such as savings and loan associations, credit unions, insurance companies,
consumer finance companies and commercial finance and leasing companies. Also,
money market mutual funds, brokerage houses and similar institutions provide in
a relatively unregulated environment many of the financial services offered by
banks. In the opinion of management, the principal methods of competition are
the rates of interest charged on loans, the rates of interest paid on deposit
funds, the fees charged for services, and the convenience, availability,
timeliness and quality of the customer services offered.
 
EMPLOYEES
 
As of December 31, 1997 the Company through its subsidiary, the Bank, employed
159 full-time and 51 part-time employees. The Company provides its employees
with a full range of benefit plans, and considers its relations with its
employees to be satisfactory.
 
- --------------------------------------------------------------------------------
 
                                                                          3
<PAGE>   6
 
REPORT OF PACKER, THOMAS & CO.,
INDEPENDENT AUDITORS
 
- --------------------------------------------------------------------------------
 
SHAREHOLDERS AND BOARD OF DIRECTORS
Cortland Bancorp
 
We have audited the accompanying consolidated balance sheets of Cortland Bancorp
and subsidiaries as of December 31, 1997 and 1996 and the related consolidated
statements of income, shareholders' equity and cash flows for each of the three
years in the period ended December 31, 1997. These financial statements are the
responsibility of the Company's management. Our responsibility is to express an
opinion on these financial statements based on our audits.
 
We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
In our opinion, the consolidated financial statements present fairly, in all
material respects, the consolidated financial position of Cortland Bancorp and
subsidiaries at December 31, 1997 and 1996, and the consolidated results of
their operations and cash flows for each of the three years in the period ended
December 31, 1997, in conformity with generally accepted accounting principles.
 
                                          /s/ Packer, Thomas & Co.
                                          Packer, Thomas & Co.
Youngstown, Ohio
February 13, 1998
 
- --------------------------------------------------------------------------------
 
                                                                          4
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   7
 
CORTLAND BANCORP AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
                  (Amounts in thousands except per share data)
 
<TABLE>
<CAPTION>
                                                              1997        1996        1995
                                                            --------    --------    --------
<S>                                                         <C>         <C>         <C>
INTEREST INCOME
  Interest and fees on loans..............................  $ 15,981    $ 14,745    $ 14,117
  Interest and dividends on investment securities:
     Taxable interest.....................................     6,201       6,118       5,112
     Nontaxable interest..................................       783         772         684
     Dividends............................................       245         233         175
  Interest on mortgage-backed securities..................     4,982       5,160       4,571
  Interest on trading account securities..................         7           3
  Other interest income...................................       178          45         146
                                                            --------    --------    --------
          Total interest income...........................    28,377      27,076      24,805
                                                            --------    --------    --------
INTEREST EXPENSE
  Deposits................................................    12,081      11,973      11,035
  Borrowed funds..........................................     1,266         768         386
                                                            --------    --------    --------
          Total interest expense..........................    13,347      12,741      11,421
                                                            --------    --------    --------
             Net interest income..........................    15,030      14,335      13,384
             Provision for loan losses (Note 4)...........
                                                            --------    --------    --------
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES.......    15,030      14,335      13,384
                                                            --------    --------    --------
OTHER INCOME
  Fees for other customer services........................     1,319       1,219         973
  Trading securities gains - net..........................        13          12
  Investment securities gains - net.......................        94         102           5
  Gain on sale of loans - net.............................        76          15          93
  Gain (loss) on sale of other real estate - net..........                    27         (32)
  Other non-interest income...............................       191         223         272
                                                            --------    --------    --------
          Total other income..............................     1,693       1,598       1,311
                                                            --------    --------    --------
OTHER EXPENSES
  Salaries and employee benefits..........................     5,830       5,549       5,262
  Net occupancy expense...................................       684         666         611
  Equipment expense.......................................     1,082       1,048       1,004
  State and local taxes...................................       521         473         414
  FDIC assessment.........................................        39           2         334
  Office supplies.........................................       480         488         473
  Marketing expense.......................................       256         265         255
  Legal and litigation expense............................       182         277         263
  Other operating expenses................................     1,221       1,229       1,445
                                                            --------    --------    --------
          Total other expenses............................    10,295       9,997      10,061
                                                            --------    --------    --------
INCOME BEFORE FEDERAL INCOME TAXES........................     6,428       5,936       4,634
Federal income taxes (Note 11)............................     1,974       1,826       1,345
                                                            --------    --------    --------
NET INCOME................................................  $  4,454    $  4,110    $  3,289
                                                            ========    ========    ========
EARNINGS PER COMMON SHARE (Note 1)........................  $   3.93    $   3.71    $   3.04
                                                            ========    ========    ========
</TABLE>
 
- --------------------------------------------------------------------------------
          See accompanying notes to consolidated financial statements
                                                                          5
<PAGE>   8
 
CORTLAND BANCORP AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
As of December 31, 1997 and 1996
 
- --------------------------------------------------------------------------------
 
                  (Amounts in thousands except per share data)
 
<TABLE>
<CAPTION>
                                                                 1997           1996
                                                              ----------     ----------
<S>                                                           <C>            <C>
ASSETS
Cash and due from banks.....................................  $    9,509     $   10,083
Federal Funds sold..........................................       3,100
                                                              ----------     ----------
  Total cash and cash equivalents...........................      12,609         10,083
                                                              ----------     ----------
Investment securities available for sale (Note 2)...........     115,413        119,088
Investment securities held to maturity (approximate market
  value of $73,684 in 1997 and $75,461 in 1996) (Note 2)....      73,183         75,286
Total loans (Note 3)........................................     184,491        166,109
  Less allowance for loan losses (Note 4)...................      (2,817)        (2,966)
                                                              ----------     ----------
  Net loans.................................................     181,674        163,143
                                                              ----------     ----------
Premises and equipment (Note 5).............................       5,744          6,024
Other assets................................................       4,139          4,886
                                                              ----------     ----------
          TOTAL ASSETS......................................  $  392,762     $  378,510
                                                              ==========     ==========
 
LIABILITIES
Noninterest-bearing deposits................................  $   45,652     $   42,130
Interest-bearing deposits (Note 7)..........................     274,086        277,900
                                                              ----------     ----------
  Total deposits............................................     319,738        320,030
                                                              ----------     ----------
Federal Home Loan Bank advances and other borrowings
  (Note 8)..................................................      30,814         21,171
Other liabilities...........................................       2,001          1,389
                                                              ----------     ----------
          TOTAL LIABILITIES.................................     352,553        342,590
                                                              ----------     ----------
 
Commitments and contingent liabilities (Notes 9 and 17)
 
SHAREHOLDERS' EQUITY
Common stock - $5.00 stated value - authorized
  5,000,000 shares; issued and outstanding 1,138,237 shares
  in 1997 and 1,081,817 in 1996.............................       5,691          5,409
Additional paid-in capital..................................      13,310         10,938
Retained earnings...........................................      20,429         19,287
Net unrealized gain on available for sale debt and
  marketable equity securities (Note 2).....................         779            286
                                                              ----------     ----------
       TOTAL SHAREHOLDERS' EQUITY (Note 16).................      40,209         35,920
                                                              ----------     ----------
          TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY........  $  392,762     $  378,510
                                                              ==========     ==========
</TABLE>
 
- --------------------------------------------------------------------------------
 
          See accompanying notes to consolidated financial statements
                                                                          6
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   9
 
CORTLAND BANCORP AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
                  (Amounts in thousands except per share data)
 
<TABLE>
<CAPTION>
                                                                                               Net Un-
                                                                                               realized
                                                                                                 Gain       Total
                                                          Additional                            (Loss)      Share-
                                                Common     Paid-In     Retained    Treasury       on       holders'
                                                Stock      Capital     Earnings     Stock     Securities    Equity
                                                ------    ----------   --------    --------   ----------   --------
<S>                                            <C>        <C>          <C>         <C>        <C>          <C>
 
BALANCE AT JANUARY 1, 1995...................  $ 4,890     $  8,028    $ 16,292    $      0    $ (1,689)   $ 27,521
  Net income.................................                             3,289                               3,289
  Shares sold................................       97          428                                             525
  Treasury shares purchased..................                                           (25)                    (25)
  Treasury shares sold.......................
  Cash dividends declared ($.74 per share)...                              (794)                               (794)
  Special cash dividend ($.19 per share).....                              (219)                               (219)
  3% stock dividend..........................      147          715        (862)
  Cash paid in lieu of fractional shares.....                               (13)                                (13)
  Net change in unrealized gain (loss) on
     available for sale debt and
     marketable equity securities............                                                     2,332       2,332
                                               --------    --------    --------    --------    --------    --------
BALANCE AT DECEMBER 31, 1995.................    5,134        9,171      17,693         (25)        643      32,616
                                               --------    --------    --------    --------    --------    --------
  Net income.................................                             4,110                               4,110
  Shares sold................................      120          680                                             800
  Treasury shares sold.......................                                            25                      25
  Cash dividends declared ($.84 per share)...                              (941)                               (941)
  Special cash dividend ($.28 per share).....                              (315)                               (315)
  3% stock dividend..........................      155        1,087      (1,242)
  Cash paid in lieu of fractional shares.....                               (18)                                (18)
  Net change in unrealized gain on available
     for sale debt and marketable equity
     securities..............................                                                      (357)       (357)
                                               --------    --------    --------    --------    --------    --------
BALANCE AT DECEMBER 31, 1996.................    5,409       10,938      19,287           0         286      35,920
                                               --------    --------    --------    --------    --------    --------
  Net income.................................                             4,454                               4,454
  Shares sold................................      118          899                                           1,017
  Cash dividends declared ($.97 per share)...                            (1,101)                             (1,101)
  Special cash dividend ($.49 per share).....                              (553)                               (553)
  3% stock dividend..........................      164        1,473      (1,637)
  Cash paid in lieu of fractional shares.....                               (21)                                (21)
  Net change in unrealized gain on available
     for sale debt and marketable equity
     securities..............................                                                       493         493
                                               --------    --------    --------    --------    --------    --------
BALANCE AT DECEMBER 31, 1997.................  $ 5,691     $ 13,310    $ 20,429    $      0    $    779    $ 40,209
                                               ========    ========    ========    ========    ========    ========
</TABLE>
 
- --------------------------------------------------------------------------------
          See accompanying notes to consolidated financial statements
                                                                          7
<PAGE>   10
 
CORTLAND BANCORP AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                              1997        1996        1995
                                                            --------    --------    --------
<S>                                                         <C>         <C>         <C>
CASH FLOWS FROM OPERATING ACTIVITIES
  Net income..............................................  $  4,454    $  4,110    $  3,289
  Adjustments to reconcile net income to net cash flows
     from operating activities:
       Depreciation, amortization and accretion...........     1,382       1,463       1,552
       Deferred tax expense (benefit).....................        64          69         (22)
       Investment securities gains........................       (94)       (102)         (5)
       Other real estate (gains) losses...................                   (27)         32
       Gains on sales of loans............................       (76)        (15)        (93)
       Loans originated for sale..........................    (3,930)     (1,421)      1,473
       Proceeds from sale of loans originated for sale....     3,611         539
       Changes in:
             Interest and fees receivable.................       102        (123)       (396)
             Interest payable.............................        61         (62)        330
             Other assets and liabilities.................       850        (505)        509
                                                            --------    --------    --------
               Net cash flows from operating activities...     6,424       3,926       6,669
                                                            --------    --------    --------
CASH FLOWS FROM INVESTING ACTIVITIES
  Purchases of securities available for sale..............   (31,408)    (37,738)    (32,352)
  Purchases of securities held to maturity................   (20,498)    (20,696)    (30,225)
  Proceeds from sales of securities available for sale....    19,630      12,997
  Proceeds from call, maturity and principal payments on
     securities...........................................    38,364      31,703      32,629
  Net increase in loans made to customers.................   (18,136)    (10,149)     (7,366)
  Net proceeds from the acquisition of deposits...........                            10,605
  Proceeds from disposition of other real estate..........        28         225         194
  Proceeds from sale of loans.............................                 1,089         330
  Purchases of premises and equipment.....................      (571)       (319)       (861)
                                                            --------    --------    --------
               Net cash flows from investing activities...   (12,591)    (22,888)    (27,046)
                                                            --------    --------    --------
CASH FLOWS FROM FINANCING ACTIVITIES
  Net increase (decrease) in deposit accounts.............      (292)      4,101      20,649
  Net increase in borrowings..............................     9,643      12,954       1,126
  Dividends paid..........................................    (1,675)     (1,274)     (1,026)
  Purchases of treasury stock.............................                               (25)
  Proceeds from sale of treasury stock....................                    25
  Proceeds from sale of common stock......................     1,017         800         525
                                                            --------    --------    --------
               Net cash flows from financing activities...     8,693      16,606      21,249
                                                            --------    --------    --------
  NET CHANGE IN CASH AND CASH EQUIVALENTS.................     2,526      (2,356)        872
                                                            --------    --------    --------
CASH AND CASH EQUIVALENTS
  Beginning of year.......................................    10,083      12,439      11,567
                                                            --------    --------    --------
  End of year.............................................  $ 12,609    $ 10,083    $ 12,439
                                                            ========    ========    ========
</TABLE>
 
- --------------------------------------------------------------------------------
 
          See accompanying notes to consolidated financial statements
                                                                          8
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   11
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
NOTE 1 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
PRINCIPLES OF CONSOLIDATION: The consolidated financial statements include the
accounts of Cortland Bancorp (the Company) and its wholly-owned subsidiaries,
Cortland Savings and Banking Company (the Bank) and New Resources Leasing Co.
All significant intercompany balances and transactions have been eliminated.
 
INDUSTRY SEGMENT INFORMATION: The Company and its subsidiaries operate in the
domestic banking industry which accounts for substantially all of the Company's
assets, revenues and operating income. The Company, through its subsidiary bank,
grants residential, consumer, and commercial loans and offers a variety of
saving plans to customers located primarily in the Northeastern Ohio area.
 
USE OF ESTIMATES: The preparation of financial statements in conformity with
generally accepted accounting principles requires management to make estimates
and assumptions that affect the amounts reported in the financial statements and
accompanying notes. Actual results could differ from those estimates.
 
CASH FLOW: Cash and cash equivalents include cash on hand, amounts due from
banks and federal funds sold. Generally, federal funds are purchased and sold
for one-day periods. The Company reports net cash flows for customer loan
transactions, deposit transactions and deposits made with other financial
institutions.
 
The Company paid interest of $13,286,000, $12,803,000 and $11,091,000 in 1997,
1996 and 1995, respectively. Cash paid for income taxes was $1,824,000 in 1997,
$1,571,000 in 1996 and $936,000 in 1995. Transfers of loans to other real estate
were $0, $11,000 and $58,000 in 1997, 1996 and 1995, respectively.
 
INVESTMENT SECURITIES: Investments in debt and equity securities are classified
as held to maturity, trading or available for sale. Securities classified as
held to maturity are those that management has the positive intent and ability
to hold to maturity. Securities classified as available for sale are those that
could be sold for liquidity, investment management, or similar reasons, even
though management has no present intentions to do so. Trading securities are
principally held with the intention of selling in the near term.
 
Securities held to maturity are stated at cost, adjusted for amortization of
premiums and accretion of discounts, with such amortization or accretion
included in interest income. Securities available for sale are carried at fair
value with unrealized gains and losses recorded as a separate component of
shareholders' equity, net of tax effects. Changes in fair values of trading
securities are reported in the consolidated statements of income. Realized gains
or losses on dispositions are based on net proceeds and the adjusted carrying
amount of securities sold, using the specific identification method.
 
NEW ACCOUNTING STANDARDS: Effective January 1, 1997 the Company adopted
Statement of Financial Accounting Standards (SFAS) No. 125, "Accounting for
Transfers and Servicing of Financial Assets and Extinguishments of Liabilities,"
which requires an entity to recognize the financial and servicing assets it
controls and the liabilities it has incurred and to eliminate financial assets
when control has been surrendered in accordance with the criteria provided in
the standard. This standard supersedes SFAS No. 122, "Accounting for Mortgage
Servicing Rights" an amendment to SFAS No. 65. Application of the new rules did
not have a material impact on the Company's financial position or results of
operations.
 
- --------------------------------------------------------------------------------
                                  (Continued)
                                                                          9
<PAGE>   12
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
NOTE 1 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

In addition, effective December 31, 1997, the Company adopted SFAS No. 128,
"Earnings per Share" and SFAS No. 129, "Disclosure of Information about Capital
Structure." Adoption of these standards did not have a material impact on the
Company's financial position or results of operations.
 
LOANS: Loans are stated at the principal amount outstanding net of the
unamortized balance of deferred loan origination fees and costs. The Company
amortizes deferred loan fees and costs over the lives of the related loans as an
adjustment to interest income using the level yield method.
 
LOANS HELD FOR SALE: The Company originates certain residential mortgage loans
for sale in the secondary mortgage loan market. In addition, the Company
periodically identifies other loans which will be sold. These loans are
classified as loans held for sale, and carried, in the aggregate, at the lower
of cost or estimated market value based on secondary market prices. To mitigate
interest rate risk, the Company may obtain fixed commitments at the time loans
are originated or identified as being held for sale. No such commitments existed
as of December 31, 1997.
 
CONCENTRATIONS OF CREDIT RISK: The following table represents the composition of
the loan portfolio as of December 31, 1997 and 1996:
 
<TABLE>
<CAPTION>
                                                  % of Total Loans
                                                  -----------------
                                                   1997      1996
                                                  -------   -------
<S>                                               <C>       <C>
1-4 family residential mortgage.................    42.1%     42.5%
Commercial mortgage loans.......................    27.1      25.5
Consumer loans..................................    10.3      12.8
Commercial loans................................    14.1      11.7
Home equity loans...............................     5.4       6.7
1-4 family residential mortgage
  loans held for sale...........................     1.0       0.8
</TABLE>
 
Approximately 4.27% of total loans are unsecured at December 31, 1997, compared
to 3.16% at December 31, 1996.
 
ALLOWANCE FOR LOAN LOSSES: Because some loans may not be repaid in full, an
allowance for loan losses is recorded. Increases to the allowance are recorded
by a provision for loan losses charged to expense. Estimating the risk of loss
and the amount of loss on any loan is necessarily subjective. Accordingly, the
allowance is maintained by management at a level considered adequate to cover
possible losses that are currently anticipated based on past loss experience,
general economic conditions, information about specific borrower situations,
including their financial position and collateral values, and other factors and
estimates which are subject to change over time. While management may
periodically allocate portions of the allowance for specific problem situations,
the entire allowance is available for any charge-offs that occur. A loan is
charged off by management as a loss when deemed uncollectible, although
collection efforts continue and future recoveries may occur.
 
- --------------------------------------------------------------------------------
 
                                  (Continued)
                                                                         10
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   13
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
NOTE 1 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

REVENUE RECOGNITION: Interest on loans and securities is accrued and credited to
operations based on the principal balance outstanding.
 
Whenever serious doubt arises as to the collectibility of interest or principal
on a loan or security, the accrual of interest is discontinued and previously
accrued interest which is not in the process of collection is reversed by a
charge to operations. Subsequent receipts on nonaccrual loans, including those
considered impaired, are recorded as a reduction of principal, and interest
income is recorded once principal recovery is reasonably assured.
 
PREMISES AND EQUIPMENT: Premises and equipment are stated at cost less
accumulated depreciation. Depreciation is computed generally on the
straight-line method over the estimated useful lives of the various assets.
Maintenance and repairs are expensed and major improvements are capitalized.
 
OTHER REAL ESTATE: Real estate acquired through foreclosure or deed-in-lieu of
foreclosure is included in other assets. Such real estate is carried at the
lower of cost or fair value less estimated costs to sell. Any reduction from the
carrying value of the related loan to fair value at the time of acquisition is
accounted for as a loan loss. Any subsequent reduction in fair market value is
reflected as a valuation allowance through a charge to income.
 
INTANGIBLE ASSET: An intangible asset resulting from a branch acquisition is
being amortized over a 15 year period. The intangible asset, net of accumulated
amortization, was $465,000 and $501,000 at December 31, 1997 and 1996,
respectively, and is included in other assets.
 
ADVERTISING: The Company expenses advertising costs as incurred.
 
INCOME TAXES: A deferred tax liability or asset is determined at each balance
sheet date. It is measured by applying enacted tax laws to future amounts that
will result from differences in the financial statement and tax basis of assets
and liabilities.
 
PER SHARE AMOUNTS: The board of directors declared 3% common stock dividends
payable as of January 1, 1998, 1997 and 1996. The 3% common stock dividend
issued on January 1, 1998 resulted in the issuance of 32,743 shares of common
stock, which have been included in the 1,138,237 shares reported as issued at
December 31, 1997.
 
Basic earnings per share are based on weighted average shares outstanding.
Weighted average shares outstanding were 1,132,869 for 1997, 1,107,480 for 1996
and 1,083,535 for 1995. Average shares outstanding, per share amounts and
references to number of shares in the consolidated financial statements have
been restated to give retroactive effect to the stock dividends declared.
 
- --------------------------------------------------------------------------------
                                  (Continued)
                                                                         11
<PAGE>   14
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
NOTE 2 - INVESTMENT SECURITIES
 
The following is a summary of investment securities:
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                            Gross         Gross       Estimated
                                             Amortized    Unrealized    Unrealized       Fair
                                               Cost         Gains         Losses        Value
                                             ---------    ----------    ----------    ----------
<S>                                          <C>          <C>           <C>           <C>
DECEMBER 31, 1997
INVESTMENT SECURITIES AVAILABLE FOR SALE
U.S. Treasury securities...................  $ 29,855       $  299        $   20       $ 30,134
U.S. Government agencies and
  corporations.............................    18,867          212             1         19,078
Obligations of states and political
  subdivisions.............................     7,103           70             1          7,172
Mortgage-backed and related securities.....    54,241          873            82         55,032
                                             --------       ------        ------       --------
          Total............................   110,066        1,454           104        111,416
Marketable equity securities...............     2,171          166           214          2,123
Other securities...........................     1,874                                     1,874
                                             --------       ------        ------       --------
          Total available for sale.........  $114,111       $1,620        $  318       $115,413
                                             ========       ======        ======       ========
INVESTMENT SECURITIES HELD TO MATURITY
U.S. Government agencies and
  corporations.............................  $ 39,448       $  246        $   83       $ 39,611
Obligations of states and political
  subdivisions.............................    13,867          193            34         14,026
Mortgage-backed and related securities.....    19,868          200            21         20,047
                                             --------       ------        ------       --------
          Total held to maturity...........  $ 73,183       $  639        $  138       $ 73,684
                                             ========       ======        ======       ========
 
DECEMBER 31, 1996
INVESTMENT SECURITIES AVAILABLE FOR SALE
U.S. Treasury securities...................  $ 39,813       $  265        $   68       $ 40,010
U.S. Government agencies and
  corporations.............................    11,740          119             5         11,854
Obligations of states and political
  subdivisions.............................     7,471           45            10          7,506
Mortgage-backed and related securities.....    55,530          610           161         55,979
                                             --------       ------        ------       --------
          Total............................   114,554        1,039           244        115,349
Marketable equity securities...............     2,170           63           255          1,978
Other securities...........................     1,761                                     1,761
                                             --------       ------        ------       --------
          Total available for sale.........  $118,485       $1,102        $  499       $119,088
                                             ========       ======        ======       ========
INVESTMENT SECURITIES HELD TO MATURITY
U.S. Government agencies and
  corporations.............................  $ 46,674       $  298        $  232       $ 46,740
Obligations of states and political
  subdivisions.............................     9,722          100            52          9,770
Mortgage-backed and related securities.....    18,890          171           110         18,951
                                             --------       ------        ------       --------
          Total held to maturity...........  $ 75,286       $  569        $  394       $ 75,461
                                             ========       ======        ======       ========
</TABLE>
 
At December 31, 1997 and 1996, other securities consisted of $1,648,000 and
$1,535,000 in Federal Home Loan Bank (FHLB) stock, respectively, and $226,000 in
Federal Reserve Board (FED) stock. Each investment is carried at cost, and the
Company is required to hold such investments as a condition of membership in
order to transact business with the FHLB and the FED.
 
- --------------------------------------------------------------------------------
 
                                  (Continued)
                                                                         12
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   15
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
NOTE 2 - INVESTMENT SECURITIES (Continued)
The amortized cost and estimated market value of debt securities at December 31,
1997, by contractual maturity, are shown below. Actual maturities will differ
from contractual maturities because issuers may have the right to call or prepay
obligations with or without call or prepayment penalties.
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                               December 31, 1997
                                                             ----------------------
                                                             Amortized   Estimated
                                                               Cost      Fair Value
                                                             ---------   ----------
<S>                                                          <C>         <C>
INVESTMENT SECURITIES AVAILABLE FOR SALE
Due in one year or less....................................  $  9,130     $  9,144
Due after one year through five years......................    30,869       31,196
Due after five years through ten years.....................    14,999       15,209
Due after ten years........................................       827          835
                                                             --------     --------
          Subtotal.........................................    55,825       56,384
Mortgage-backed securities.................................    54,241       55,032
                                                             --------     --------
          Total............................................  $110,066     $111,416
                                                             ========     ========
INVESTMENT SECURITIES HELD TO MATURITY
Due in one year or less....................................  $  5,645     $  5,659
Due after one year through five years......................    10,241       10,295
Due after five years through ten years.....................    29,596       29,827
Due after ten years........................................     7,833        7,856
                                                             --------     --------
          Subtotal.........................................    53,315       53,637
Mortgage-backed securities.................................    19,868       20,047
                                                             --------     --------
          Total............................................  $ 73,183     $ 73,684
                                                             ========     ========
</TABLE>
 
The following table sets forth the proceeds, gains and losses realized on
securities sold or called for each of the years ended December 31:
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                              1997      1996      1995
                                                             -------   -------   ------
<S>                                                          <C>       <C>       <C>
Proceeds...................................................  $30,180   $16,479   $2,146
Gross realized gains.......................................      107       131       12
Gross realized losses......................................       13        29        7
</TABLE>
 
Investment securities with a carrying value of approximately $33,191,000 at
December 31, 1997 and $40,645,000 at December 31, 1996 were pledged to secure
deposits and for other purposes.
 
- --------------------------------------------------------------------------------
                                  (Continued)
                                                                         13
<PAGE>   16
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
NOTE 3 - LOANS RECEIVABLE
 
The following is a summary of loans:
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                                 December 31,
                                                             --------------------
                                                               1997        1996
                                                             --------    --------
<S>                                                          <C>         <C>
1-4 family residential mortgage loans......................  $ 77,644    $ 70,590
Commercial mortgage loans..................................    50,015      42,367
Consumer loans.............................................    18,990      21,300
Commercial loans...........................................    26,022      19,355
Home equity loans..........................................    10,064      11,136
1-4 family residential mortgage loans held for sale........     1,756       1,361
                                                             --------    --------
          Total loans......................................  $184,491    $166,109
                                                             ========    ========
</TABLE>
 
Loans on which the accrual of interest has been discontinued because
circumstances indicate that collection is questionable amounted to $1,653,000,
$1,450,000, and $1,597,000 at December 31, 1997, 1996 and 1995, respectively.
Interest income on these loans, if accrued, would have been approximately
$35,000, $29,000 and $63,000 for 1997, 1996 and 1995, respectively.
 
Renegotiated loans for which interest has been reduced and that are still
accruing interest totaled approximately $173,000, $182,000 and $191,000 at
December 31, 1997, 1996 and 1995, respectively. Interest income recognized on
these loans was $20,000, $21,000 and $20,000 for 1997, 1996 and 1995,
respectively. Interest income that would have been recognized under the original
terms was $25,000 for 1997, 1996 and 1995.
 
NOTE 4 - ALLOWANCE FOR LOAN LOSSES
 
The following is an analysis of changes in the allowance for loan losses:
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                              December 31,
                                                       --------------------------
                                                        1997      1996      1995
                                                       ------    ------    ------
<S>                                                    <C>       <C>       <C>
Balance at beginning of year.........................  $2,966    $3,011    $3,081
Loan charge-offs.....................................    (252)     (176)     (367)
Recoveries...........................................     103       131       297
                                                       ------    ------    ------
  Net loan charge-offs...............................    (149)      (45)      (70)
Provision charged to operations......................       0         0         0
                                                       ------    ------    ------
Balance at end of year...............................  $2,817    $2,966    $3,011
                                                       ======    ======    ======
</TABLE>
 
Impaired loans are generally included in nonaccrual loans. Management does not
individually evaluate certain smaller balance loans for impairment as such loans
are evaluated on an aggregate basis. These loans generally include 1 - 4 family,
consumer and home equity loans. Impaired loans were evaluated using the fair
value of collateral as the measurement method. At December 31, 1997, 1996, and
1995, the recorded investment in impaired loans was $1,365,000, $1,162,000 and
$231,000 while the allocated portion of the allowance for loan losses for such
loans was $213,000, $291,000 and $57,000, respectively. Interest Income
recognized on impaired loans using the cash basis was $116,000, $92,000 and
$18,000, respectively.
 
- --------------------------------------------------------------------------------
 
                                  (Continued)
                                                                         14
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   17
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
NOTE 5 - PREMISES AND EQUIPMENT
 
The following is a summary of premises and equipment:
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                              December 31,
                                                          --------------------
                                                            1997        1996
                                                          --------    --------
<S>                                                       <C>         <C>
Land....................................................  $    638    $    638
Premises................................................     5,021       5,010
Equipment...............................................     6,482       6,125
Leasehold improvements..................................       208         191
                                                          --------    --------
                                                            12,349      11,964
Less accumulated depreciation...........................     6,605       5,940
                                                          --------    --------
          Net book value................................  $  5,744    $  6,024
                                                          ========    ========
</TABLE>
 
Depreciation expense was $851,000 for 1997, $832,000 for 1996 and $799,000 for
1995.
 
NOTE 6 - OTHER REAL ESTATE
 
The following is a summary of other real estate:
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                              December 31,
                                                          --------------------
                                                            1997        1996
                                                          --------    --------
<S>                                                       <C>         <C>
Other real estate.......................................  $      0    $     28
Less allowance for losses...............................
                                                          --------    --------
Net other real estate...................................  $      0    $     28
                                                          ========    ========
</TABLE>
 
Activity in the allowance for losses on other real estate is as follows:
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                              December 31,
                                                          --------------------
                                                            1997        1996
                                                          --------    --------
<S>                                                       <C>         <C>
Balance at beginning of year............................  $      0    $      4
Charge-offs.............................................                    (4)
                                                          --------    --------
Balance at end of year..................................  $      0    $      0
                                                          ========    ========
</TABLE>
 
- --------------------------------------------------------------------------------
                                  (Continued)
                                                                         15
<PAGE>   18
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
NOTE 7 - DEPOSITS
 
The following is a summary of interest-bearing deposits:
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                              December 31,
                                                          --------------------
                                                            1997        1996
                                                          --------    --------
<S>                                                       <C>         <C>
Demand..................................................  $ 45,958    $ 45,943
Savings.................................................    82,236      85,289
Time:
  In denominations under $100,000.......................   116,255     111,635
  In denominations of $100,000 or more..................    29,637      35,033
                                                          --------    --------
          Total interest-bearing deposits...............  $274,086    $277,900
                                                          ========    ========
</TABLE>
 
The following is a summary of certificates of deposit of $100,000 or more by
remaining maturities:
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                              December 31,
                                                          --------------------
                                                            1997        1996
                                                          --------    --------
<S>                                                       <C>         <C>
Three months or less....................................  $  8,869    $ 13,275
Three to twelve months..................................    10,786      15,122
One through five years..................................     8,909       5,675
Over five years.........................................     1,073         961
                                                          --------    --------
          Total.........................................  $ 29,637    $ 35,033
                                                          ========    ========
</TABLE>
 
- --------------------------------------------------------------------------------
 
                                  (Continued)
                                                                         16
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   19
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
NOTE 8 - FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS
 
The following is a summary of total Federal Home Loan Bank advances and other
borrowings:
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                          CURRENT        December 31,
                                                          INTEREST    ------------------
                                                            RATE       1997       1996
                                                          --------    -------    -------
<S>                                                       <C>         <C>        <C>
FEDERAL HOME LOAN BANK ADVANCES
Variable rate LIBOR based Federal Home Loan Bank
  advances, with monthly interest payments:
     Due in 1998........................................    5.97%     $ 5,000    $ 5,000
     Due in 2000........................................    5.97        5,000      5,000
     Due in 2004........................................    5.65        3,000
Fixed rate Federal Home Loan Bank advances, with monthly
  interest payments:
     Due in 1998........................................    5.86        5,000      2,000
     Due in 1999........................................    6.15        3,000      1,500
     Due in 2000........................................    6.50        1,000
     Due in 2002........................................    6.49        2,000
     Due in 2007........................................    6.37        1,000
                                                                      -------    -------
       Total Federal Home Loan Bank advances............               25,000     13,500
OTHER BORROWINGS
Securities sold under repurchase agreements.............    4.72        3,472      2,394
U.S. Treasury interest-bearing demand note..............    5.25        2,321      1,204
Federal funds purchased.................................                           4,050
Other...................................................    3.00           21         23
                                                                      -------    -------
       Total other borrowings...........................                5,814      7,671
                                                                      -------    -------
          Total Federal Home Loan Bank advances and
             other borrowings...........................              $30,814    $21,171
                                                                      =======    =======
</TABLE>
 
Federal Home Loan Bank (FHLB) advances are collateralized by the FHLB stock
owned by the Bank, with a carrying amount of $1,648,000 at December 31, 1997 and
a blanket lien against the Bank's qualified mortgage loan portfolio. Maximum
borrowing capacity from the FHLB totaled $32,960,000 at December 31, 1997.
 
NOTE 9 - COMMITMENTS
 
The Bank occupies office facilities under operating leases extending to 2007.
Most of these leases contain an option to renew at the then fair rental value
for periods of five and ten years. These options enable the Bank to retain use
of these facilities in desirable operating areas. In most cases, management
expects that in the normal course of business, leases will be renewed or
replaced by other leases. Rental expenses were
 
- --------------------------------------------------------------------------------
                                  (Continued)
                                                                         17
<PAGE>   20
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
NOTE 9 - COMMITMENTS (Continued)
$209,000 for 1997, $199,000 for 1996 and $181,000 for 1995. The following is a
summary of remaining future minimum lease payments under current noncancelable
operating leases for office facilities:
 
                             (Amounts in thousands)
 
<TABLE>
<S>                                               <C>
Year ending -
  December 31, 1998.............................  $142
  December 31, 1999.............................   142
  December 31, 2000.............................   124
  December 31, 2001.............................   117
  December 31, 2002.............................   105
Later years.....................................   353
                                                  ----
     Total......................................  $983
                                                  ====
</TABLE>
 
The Bank is required to maintain aggregate cash reserves amounting to $2,882,000
at December 31, 1997 to satisfy federal regulatory requirements. These amounts
do not earn interest.
 
The Bank is a party to financial instruments with off-balance sheet risk in the
normal course of business to meet the financing needs of its customers. These
financial instruments include commitments to extend credit, standby letters of
credit and financial guarantees. The Bank's exposure to credit loss in the event
of nonperformance by the other party to these financial instruments is
represented by the contractual amount of the instruments. The Bank uses the same
credit policies in making commitments and conditional obligations as it does for
instruments recorded on the Balance Sheet.
 
The following is a summary of such contract commitments:
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                              December 31,
                                                          --------------------
                                                            1997        1996
                                                          --------    --------
<S>                                                       <C>         <C>
Financial instruments whose contract
  amounts represent credit risk:
     Commitments to extend credit
       Fixed rate.......................................  $  6,241    $  7,168
       Variable rate....................................    36,774      28,061
     Standby letters of credit..........................       361         295
</TABLE>
 
Commitments to extend credit are agreements to lend to a customer as long as
there is no violation of any condition established in the contract. Commitments
generally have fixed expiration dates or other termination clauses and may
require payment of a fee. Standby letters of credit are conditional commitments
issued by the Bank to guarantee the performance of a customer to a third party.
Since many of the commitments are expected to expire without being drawn upon,
the total commitment amounts do not necessarily represent future cash
requirements. The Bank evaluates each customer's creditworthiness on a
case-by-case basis. The amount of collateral obtained, if deemed necessary by
the Bank upon extension of credit, is based on management's credit evaluation of
the counterparty. Collateral held varies but may include accounts receivable,
inventory, property, plant and equipment and income-producing commercial
properties.
 
- --------------------------------------------------------------------------------
 
                                  (Continued)
                                                                         18
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   21
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
NOTE 10 - EMPLOYEE BENEFIT PLAN
 
The Bank has a contributory defined contribution retirement plan (a 401(k) plan)
which covers substantially all employees. Total expense under the plan was
$164,000 for 1997, $156,000 for 1996 and $141,000 for 1995. The Bank is
obligated to contribute 2% of the gross pay of each eligible participant. In
addition, the Bank matches participants' voluntary contributions up to 2% of
gross pay. Participants may make voluntary contributions to the plan up to a
maximum of 10% of gross wages or $9,500, whichever is less. The Bank makes
monthly contributions to this plan equal to amounts accrued for plan expense.
 
NOTE 11 - FEDERAL INCOME TAXES
 
The composition of income tax expense is as follows:
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                                     Year Ended
                                                                    December 31,
                                                          --------------------------------
                                                            1997        1996        1995
                                                          --------    --------    --------
<S>                                                       <C>         <C>         <C>
Current.................................................  $  1,910    $  1,757    $  1,367
Deferred................................................        64          69         (22)
                                                          --------    --------    --------
     Total..............................................  $  1,974    $  1,826    $  1,345
                                                          ========    ========    ========
</TABLE>
 
The following is a summary of net deferred taxes included in other liabilities
in 1997 and in other assets in 1996 and 1995:
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                                    December 31,
                                                          --------------------------------
                                                            1997        1996        1995
                                                          --------    --------    --------
<S>                                                       <C>         <C>         <C>
Gross deferred tax assets:
  Provision for loan and other real estate losses.......  $    634    $    634    $    636
  Loan origination fees.................................        37          94         118
  Other items...........................................        89          62          44
Gross deferred tax liabilities:
  Unrealized gain on available for sale securities......      (401)       (147)       (331)
  Depreciation..........................................      (388)       (404)       (385)
  Other items...........................................      (159)       (109)        (67)
                                                          --------    --------    --------
          Net deferred tax asset (liability)............  $   (188)   $    130    $     15
                                                          ========    ========    ========
</TABLE>
 
The Company has adequate recoverable taxes paid in prior years to warrant
recording the full amount of deferred tax assets without a valuation allowance.
 
- --------------------------------------------------------------------------------
                                  (Continued)
                                                                         19
<PAGE>   22
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
NOTE 11 - FEDERAL INCOME TAXES (Continued)
The following is a reconciliation between tax expense using the statutory tax
rate of 34% and actual taxes:
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                                     Year Ended
                                                                    December 31,
                                                          --------------------------------
                                                            1997        1996        1995
                                                          --------    --------    --------
<S>                                                       <C>         <C>         <C>
Statutory tax...........................................  $  2,186    $  2,018    $  1,576
Effect of non-taxable interest and dividends............      (212)       (192)       (231)
                                                          --------    --------    --------
          Total income taxes............................  $  1,974    $  1,826    $  1,345
                                                          ========    ========    ========
</TABLE>
 
The related income tax expense on investment and trading securities gains and
losses amounted to $36,000 for 1997, $39,000 for 1996 and $2,000 for 1995, and
is included in the total federal income tax provision.
 
NOTE 12 - FAIR VALUE OF FINANCIAL INSTRUMENTS
 
The carrying amounts and estimated fair values of the Company's financial
instruments are as follows:
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                   December 31, 1997                 December 31, 1996
                                            -------------------------------   -------------------------------
                                               Carrying        Estimated         Carrying        Estimated
                                                Amount         Fair Value         Amount         Fair Value
                                            --------------   --------------   --------------   --------------
<S>                                         <C>              <C>              <C>              <C>
ASSETS:
Cash and cash equivalents.................    $  12,609        $  12,609        $  10,083        $  10,083
Investment securities.....................      188,596          189,097          194,374          194,549
Loans, net of allowance for loan losses...      181,674          181,986          163,143          163,088
LIABILITIES:
Demand and savings deposits...............    $ 173,846        $ 173,846        $ 173,362        $ 173,362
Time deposits.............................      145,892          146,867          146,668          147,747
FHLB advances.............................       25,000           25,026           13,500           13,480
Other borrowings..........................        5,814            5,814            7,671            7,671
</TABLE>
 
For purposes of the above disclosures of estimated fair value, the following
assumptions were used as of December 31, 1997 and 1996. The estimated fair value
for cash and cash equivalents is considered to approximate cost. The estimated
fair value for securities is based on quoted market values for individual
securities or for equivalent securities when specific quoted prices are not
available. Carrying value is considered to approximate fair value for loans,
FHLB advances and other borrowings that reprice frequently and for deposit
liabilities subject to immediate withdrawal. The fair values of loans, FHLB
advances and other borrowings and time deposits that reprice less frequently are
approximated by a discount rate valuation technique utilizing estimated market
interest rates as of December 31, 1997 and 1996. The fair value of unrecorded
commitments at December 31, 1997 and 1996, is not material.
 
In addition, other assets and liabilities of the Company that are not defined as
financial instruments are not included in the above disclosures, such as
property and equipment. Also, non-financial instruments typically
 
- --------------------------------------------------------------------------------
 
                                  (Continued)
                                                                         20
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   23
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
NOTE 12 - FAIR VALUE OF FINANCIAL INSTRUMENTS (Continued)
not recognized in financial statements nevertheless may have value but are not
included in the above disclosures. These include, among other items, the
estimated earning power of core deposit accounts, the earnings potential of the
Bank's trust department, the trained work force, customer goodwill, and similar
items. Accordingly, the aggregate fair value amounts presented do not represent
the underlying value of the Company.
 
NOTE 13 - REGULATORY MATTERS
 
The Company is subject to various regulatory capital requirements administered
by the federal banking agencies. Failure to meet minimum capital requirements
can initiate certain actions by regulators that, if undertaken, could have a
direct material effect on the Company's financial statements. Under capital
adequacy guidelines and the regulatory framework for prompt corrective action,
the Company must meet specific capital guidelines that involve quantitative
measures of the Company's assets, liabilities, and certain off-balance sheet
items as calculated under regulatory accounting practices. The Company's capital
amounts and classifications are also subject to qualitative judgments by the
regulators about components, risk weightings, and other factors.
 
Quantitative measures established by regulation to ensure capital adequacy
require the Company to maintain a minimum ratio of 4% both for total Tier I
risk-based capital to risk weighted assets and for Tier I risk-based capital to
average assets and a minimum ratio of 8% for total risk-based capital to risk
weighted assets.
 
Under the regulatory framework for prompt corrective action, the Company is
categorized as well capitalized. As well capitalized, a financial institution
must maintain minimum ratios of 10% for total risk-based capital to risk
weighted assets; 6% for Tier I risk-based capital to risk weighted assets; and
5% for Tier I risk-based capital to average assets (the leverage ratio). There
are no conditions or events since the most recent communication from regulators
that management believes has changed the Company's category.
 
<TABLE>
<CAPTION>
                                               (Amounts in thousands)
                                          December 31,        December 31,
                                              1997                1996
                                        ----------------    ----------------
                                        Amount     Ratio    Amount     Ratio
                                        ------     -----    ------     -----
<S>                                     <C>        <C>      <C>        <C>
Total Risk-Based Capital..............  $41,259             $37,118
  Ratio to Risk Weighted Assets.......             22.23%              22.08%
Tier I Risk-Based Capital.............  $38,933             $35,006
  Ratio to Risk Weighted Assets.......             20.98%              20.82%
  Ratio to Average Assets.............             10.17%               9.51%
</TABLE>
 
Tier I capital is shareholders' equity less intangibles and the unrealized
market value adjustment of investment securities available for sale. Total
risk-based capital is Tier I capital plus the qualifying portion of the
allowance for loan losses. Assets and certain off balance sheet items adjusted
in accordance with risk classification comprise risk weighted assets of
$185,571,000 and $168,097,000 as of December 31, 1997 and 1996, respectively.
Assets less intangibles and the net unrealized market value adjustment of
investment
 
- --------------------------------------------------------------------------------
                                  (Continued)
                                                                         21
<PAGE>   24
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
NOTE 13 - REGULATORY MATTERS (Continued)
securities available for sale averaged $382,785,000 and $368,015,000 for the
years ended December 31, 1997 and 1996, respectively.
 
NOTE 14 - RELATED PARTY TRANSACTIONS
 
Certain directors, executive officers and companies with which they are
affiliated were loan customers during 1997. The following is an analysis of such
loans:
 
                             (Amounts in thousands)
 
<TABLE>
<S>                                                           <C>
Total loans at December 31, 1996............................  $  1,508
New loans...................................................     3,043
Repayments..................................................      (414)
                                                              --------
          Total loans at December 31, 1997..................  $  4,137
                                                              ========
</TABLE>
 
NOTE 15 - CONDENSED FINANCIAL INFORMATION
 
Below is condensed financial information of Cortland Bancorp (parent company
only). In this information, the parent's investment in subsidiaries is stated at
cost, including equity in the undistributed earnings of the subsidiaries since
inception, adjusted for any unrealized gains or losses on available for sale
securities.
 
                                 BALANCE SHEETS
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                              December 31,
                                                          --------------------
                                                            1997        1996
                                                          --------    --------
<S>                                                       <C>         <C>
ASSETS:
  Cash..................................................  $    200    $    107
  Investment securities available for sale..............     3,086       1,399
  Investment in bank subsidiary.........................    36,967      34,366
  Investment in non-bank subsidiary.....................        15          15
  Other assets..........................................        30          34
                                                          --------    --------
                                                          $ 40,298    $ 35,921
                                                          ========    ========
LIABILITIES:
  Other liabilities.....................................  $     89    $      1
SHAREHOLDERS' EQUITY:
  Common stock..........................................     5,691       5,409
  Additional paid-in capital............................    13,310      10,938
  Retained earnings.....................................    20,429      19,287
  Net unrealized gain on available for sale
     debt and marketable equity securities..............       779         286
                                                          --------    --------
          TOTAL SHAREHOLDERS' EQUITY....................    40,209      35,920
                                                          --------    --------
                                                          $ 40,298    $ 35,921
                                                          ========    ========
</TABLE>
 
- --------------------------------------------------------------------------------
 
                                  (Continued)
                                                                         22
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   25
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
NOTE 15 - CONDENSED FINANCIAL INFORMATION (Continued)
                              STATEMENTS OF INCOME
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                               Year ended December 31,
                                                           --------------------------------
                                                             1997        1996        1995
                                                           --------    --------    --------
<S>                                                        <C>         <C>         <C>
Dividends from bank subsidiary...........................  $  2,200    $  1,275    $  1,100
Interest and dividend income.............................       147          17           1
Investment securities gains..............................         1
Other expenses...........................................       (46)        (40)        (39)
                                                           --------    --------    --------
  Income before income tax and equity in undistributed
     earnings of subsidiaries............................     2,302       1,252       1,062
     Income tax (expense) benefit........................       (34)          8          13
     Equity in undistributed net income of
       subsidiaries......................................     2,186       2,850       2,214
                                                           --------    --------    --------
          NET INCOME.....................................  $  4,454    $  4,110    $  3,289
                                                           ========    ========    ========
</TABLE>
 
                            STATEMENTS OF CASH FLOWS
 
                             (Amounts in thousands)
 
<TABLE>
<CAPTION>
                                                               Year ended December 31,
                                                           --------------------------------
                                                             1997        1996        1995
                                                           --------    --------    --------
<S>                                                        <C>         <C>         <C>
 
CASH FLOWS FROM OPERATING ACTIVITIES
  Net income.............................................  $  4,454    $  4,110    $  3,289
  Adjustments to reconcile net income to net cash flows
     from operating activities:
     Equity in undistributed net income of
       subsidiaries......................................    (2,186)     (2,850)     (2,214)
     Investment securities gains.........................        (1)
     Change in other assets and liabilities..............        51          (9)        (14)
                                                           --------    --------    --------
          Net cash flows from operating activities.......     2,318       1,251       1,061
                                                           --------    --------    --------
 
CASH FLOWS FROM INVESTING ACTIVITIES
  Purchases of investment securities.....................    (2,820)     (1,252)         (1)
  Proceeds from sales of securities available for sale...     1,003
  Proceeds from call, maturity and principal payments on
     securities available for sale.......................       250
                                                           --------    --------    --------
          Net cash flows from investing activities.......    (1,567)     (1,252)         (1)
                                                           --------    --------    --------
 
CASH FLOWS FROM FINANCING ACTIVITIES
  Dividends paid.........................................    (1,675)     (1,274)     (1,026)
  Proceeds from sale of common stock.....................     1,017         800         525
  Proceeds from sale of treasury stock...................                    25
  Purchases of treasury stock............................                               (25)
                                                           --------    --------    --------
          Net cash flows from financing activities.......      (658)       (449)       (526)
                                                           --------    --------    --------
  Net change in cash.....................................        93        (450)        534
 
CASH
  Beginning of year......................................       107         557          23
                                                           --------    --------    --------
  End of year............................................  $    200    $    107    $    557
                                                           ========    ========    ========
</TABLE>
 
- --------------------------------------------------------------------------------
                                  (Continued)
                                                                         23
<PAGE>   26
 
CORTLAND BANCORP AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
Years ended December 31, 1997, 1996 and 1995
 
- --------------------------------------------------------------------------------
 
NOTE 16 - DIVIDEND RESTRICTIONS
 
The Company is generally dependent on the receipt of cash dividends from the
Bank in order to pay cash dividends to shareholders. The Bank is subject to
regulations of the Ohio Division of Banks which restrict dividends to retained
earnings (as defined) of the current and prior two years. Under this
restriction, at December 31, 1997 approximately $7,250,000 is available for the
payment of dividends by the Bank. In addition, dividend payments may not reduce
capital levels below minimum regulatory guidelines.
 
NOTE 17 - LITIGATION
 
The Company's subsidiary bank was a defendant in a class action lawsuit Frank
Slentz, Et Al. V. Cortland Savings and Banking Company, involving purchased
interests in two campgrounds.
 
On October 20, 1997 the judge presiding over this case filed a judgment entry
dismissing all claims against the Bank without prejudice. The judgment was
appealed by the plaintiffs. The ultimate outcome of this litigation presently
cannot be determined, and therefore no provision for any liability relative to
such litigation has been made in the accompanying consolidated financial
statements.
 
The Bank is also involved in other legal actions arising in the ordinary course
of business. In the opinion of management, the outcome of these matters is not
expected to have a material effect on the Company.
 
- --------------------------------------------------------------------------------
 
                                                                         24
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   27
 
THREE YEAR SUMMARY
AVERAGE BALANCES, YIELDS AND RATES
 
- --------------------------------------------------------------------------------
            (Fully taxable equivalent basis in thousands of dollars)
 
<TABLE>
<CAPTION>
                                                                         1997
                                                          ----------------------------------
                                                            Average     Interest
                                                            Balance      Earned    Yield or
                                                          Outstanding   Or Paid      Rate
                                                          -----------   --------   --------
<S>                                                       <C>           <C>        <C>
Interest-earning assets:
  Federal funds sold....................................   $  3,196     $   178      5.6%
  Trading account securities............................        116           7      6.4%
  Investment securities:
     U.S. Treasury and other U.S.
       Government agencies and corporations.............     92,366       6,162      6.7%
     U.S. Government mortgage-backed
       pass through certificates........................     74,491       4,982      6.7%
     States of the U.S. and political
       subdivisions (Note 1, 2, 3)......................     17,503       1,152      6.6%
     Other securities...................................      3,822         245      6.4%
                                                           --------     -------
TOTAL INVESTMENT SECURITIES.............................    188,182      12,541      6.7%
LOANS (Note 2, 3, 4)....................................    175,515      16,057      9.1%
                                                           --------     -------
TOTAL INTEREST-EARNING ASSETS...........................   $367,009     $28,783      7.8%
                                                           ========     =======
Interest-bearing liabilities:
  Deposits:
     Interest-bearing demand deposits...................   $ 47,544     $ 1,386      2.9%
     Savings............................................     84,291       2,255      2.7%
     Time...............................................    146,263       8,440      5.8%
                                                           --------     -------
TOTAL INTEREST-BEARING DEPOSITS.........................    278,098      12,081      4.3%
                                                           --------     -------
Borrowings:
  U.S. Treasury interest-bearing demand note............        819          42      5.1%
  Federal funds purchased...............................        618          35      5.7%
  Securities sold under agreement to repurchase.........      3,726         177      4.8%
  Other borrowings under one year.......................      4,800         277      5.8%
  Other borrowings over one year........................     12,572         735      5.8%
                                                           --------     -------
TOTAL BORROWINGS........................................     22,535       1,266      5.6%
                                                           --------     -------
TOTAL INTEREST-BEARING LIABILITIES......................   $300,633     $13,347      4.4%
                                                           ========     =======
Net interest margin.....................................                $15,436      4.2%
                                                                        =======      ====
</TABLE>
 
Note 1 - Includes both taxable and tax exempt securities.
 
Note 2 - The amounts are presented on a fully taxable equivalent basis using the
         statutory tax rate of 34% in 1997, 1996 and 1995, and have been
         adjusted to reflect the effect of disallowed interest expense related
         to carrying tax exempt assets.
 
- --------------------------------------------------------------------------------
 
                                                                         25
<PAGE>   28
 
- --------------------------------------------------------------------------------
 
            (Fully taxable equivalent basis in thousands of dollars)
 
<TABLE>
<CAPTION>
                    1996                                 1995
     ----------------------------------   ----------------------------------
       Average     Interest                 Average     Interest
       Balance      Earned    Yield or      Balance      Earned    Yield or
     Outstanding   Or Paid      Rate      Outstanding   Or Paid      Rate
     -----------   --------   --------    -----------   --------   --------
<S>  <C>           <C>        <C>         <C>           <C>        <C>
      $    843     $    45      5.4%       $  2,485     $   146       5.9%
            57           3      5.9%
        92,281       6,075      6.6%         74,447       5,051       6.8%
        77,246       5,160      6.7%         70,471       4,571       6.5%
        16,995       1,145      6.7%         15,436       1,024       6.6%
         3,651         234      6.4%          2,965         187       6.3%
      --------     -------                 --------     -------
       190,173      12,614      6.6%        163,319      10,833       6.6%
       160,657      14,809      9.2%        153,702      14,175       9.2%
      --------     -------                 --------     -------
      $351,730     $27,471      7.8%       $319,506     $25,154       7.9%
      ========     =======                 ========     =======
      $ 46,945     $ 1,259      2.7%       $ 45,864     $ 1,177       2.6%
        86,468       2,319      2.7%         87,072       2,406       2.8%
       146,628       8,395      5.7%        129,320       7,452       5.8%
      --------     -------                 --------     -------
       280,041      11,973      4.3%        262,256      11,035       4.2%
      --------     -------                 --------     -------
           681          35      5.1%            756          41       5.4%
         1,918         108      5.6%          1,276          78       6.1%
         2,747         120      4.4%          2,390         110       4.6%
         9,157         505      5.5%          2,657         157       5.9%
      --------     -------                 --------     -------
        14,503         768      5.3%          7,079         386       5.5%
      --------     -------                 --------     -------
      $294,544     $12,741      4.3%       $269,335     $11,421       4.2%
      ========     =======                 ========     =======
                   $14,730      4.2%                    $13,733       4.3%
                   =======      ====                    =======      =====
</TABLE>
 
Note 3 - Average balance outstanding includes the average amount outstanding for
         all nonaccrual investment securities and loans.
 
Note 4 - Interest earned on loans includes net loan fees of $44 in 1997, $89 in
         1996 and $72 in 1995.
 
- --------------------------------------------------------------------------------
 
                                                                         26
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   29
 
CORTLAND BANCORP AND SUBSIDIARIES
SELECTED FINANCIAL DATA
 
- --------------------------------------------------------------------------------
 
            (In thousands of dollars, except for per share amounts)
 
<TABLE>
<CAPTION>
                                                                Years ended December 31,
SUMMARY OF OPERATIONS                               1997       1996       1995       1994       1993
                                                  --------   --------   --------   --------   --------
<S>                                               <C>        <C>        <C>        <C>        <C>
Total Interest Income...........................  $ 28,377   $ 27,076   $ 24,805   $ 22,564   $ 23,067
Total Interest Expense..........................    13,347     12,741     11,421      9,498     10,127
                                                  --------   --------   --------   --------   --------
NET INTEREST INCOME.............................    15,030     14,335     13,384     13,066     12,940
Provision for Loan Losses.......................
Total Other Income..............................     1,693      1,598      1,311      1,150        885
Total Other Expenses............................    10,295      9,997     10,061      9,812     10,688
                                                  --------   --------   --------   --------   --------
INCOME BEFORE TAX...............................     6,428      5,936      4,634      4,404      3,137
Federal Income Tax..............................     1,974      1,826      1,345      1,321        887
                                                  --------   --------   --------   --------   --------
NET INCOME......................................  $  4,454   $  4,110   $  3,289   $  3,083   $  2,250
                                                  ========   ========   ========   ========   ========
 
BALANCE SHEET DATA
 
Total Assets....................................  $392,762   $378,510   $358,732   $320,361   $321,269
Investments.....................................   188,596    194,374    181,710    148,976    153,787
Net Loans.......................................   181,674    163,143    153,197    147,599    142,688
Deposits........................................   319,738    320,030    315,929    284,675    287,492
Borrowings......................................    30,814     21,171      8,217      7,055      4,230
Shareholders' Equity............................    40,209     35,920     32,616     27,521     26,531
 
PER COMMON SHARE DATA (1)
 
Net Income......................................  $   3.93   $   3.71   $   3.04   $   2.89   $   2.14
Cash Dividends Declared.........................      1.46       1.12       0.93       0.77       0.47
Book Value......................................     35.33      32.25      29.99      25.79      25.21
 
ASSET QUALITY RATIOS
 
Underperforming Assets as a
  Percentage of:
     Total Assets...............................      0.47%      0.44%      0.59%      0.82%      1.05%
     Equity plus Allowance for Loan Losses......      4.27       4.32       5.94       8.61      11.37
     Tier I Capital.............................      4.72       4.79       6.61       9.08      12.72
 
FINANCIAL RATIOS
 
Return on Average Equity........................     11.62%     12.00%     10.80%     11.00%      8.83%
Return on Average Assets........................      1.16       1.11       0.98       0.95       0.71
Average Equity to Average Total Assets..........      9.99       9.29       9.06       8.67       8.01
Equity to Asset Ratio...........................     10.24       9.50       9.09       8.59       8.26
Tangible Equity to Tangible Asset Ratio.........     10.13       9.37       8.96       8.59       8.26
Cash Dividend Payout Ratio......................      37.2       30.2       30.6       26.6       22.0
Net Interest Margin Ratio.......................      4.21       4.19       4.30       4.37       4.35
</TABLE>
 
(1) Net income per common share is based on weighted average shares outstanding
adjusted retroactively for stock dividends. Cash dividends per common share are
based on actual cash dividends declared, adjusted retroactively for the stock
dividends. Book value per common share is based on shares outstanding at each
period, adjusted retroactively for the stock dividends.
 
- --------------------------------------------------------------------------------
 
                                                                         27
<PAGE>   30
 
CORTLAND BANCORP AND SUBSIDIARIES
MANAGEMENT'S DISCUSSION AND ANALYSIS
(In thousands of dollars, except for per share amounts)
 
- --------------------------------------------------------------------------------
 
OVERVIEW AND OUTLOOK
 
Net income for 1997 increased by 8.4% to $4,454, best in the Company's history,
and constituted an increase of $344 from the $4,110 earned in 1996. Earnings per
share of $3.93 represented an improvement of $0.22 from the $3.71 per share
realized in 1996.
 
Capital ratios continued to strengthen, facilitating a 30% increase in dividends
per share. As of December 31, 1997, the ratio of equity capital to total assets
was 10.24%, up from 9.50% a year ago; while risk-based capital measured 22.23%
compared to 22.08% at December 31, 1996. All capital ratios were well in excess
of required regulatory minimums.
 
During the year, the Company added a new ATM location at the Warren-Youngstown
Regional Airport, while also updating most other existing ATM machines to
increase customer functionality while lowering the Company's operating and
maintenance costs. During the fourth quarter of 1997, the Company began
assessing surcharges for ATM transactions. These charges are expected to
contribute an additional $50-$75 of service fee income in 1998.

The Company opened its newest banking office in southern Mahoning County during
August of 1997, while the relocation of the Mantua branch to a new facility at
Mantua Corners has been indefinitely delayed pending resolution of EPA issues.
 
Management expects the economy in 1998 to exhibit a slower rate of growth than
in 1997 with continued low inflation. Interest rates are expected to remain
relatively stable over the first half of 1998 before declining in the second
half as the economy slows due to fiscal and monetary restraint and economic
problems in Asia.
 
The Company remains firmly committed to new ideas, new products, and emerging
technologies that can enhance internal operating efficiencies and increase
customer satisfaction, strengthening franchise value. To further facilitate
customer service and innovation while enhancing productivity, the Company will
realign its retail lending and branch operations during 1998.
 
Return on average equity in 1997 declined slightly to 11.62% while the return on
average assets climbed to 1.16%. Book value per share increased 9.6% to $35.33.
The price of the Company's common stock increased during the year, trading in a
range between a first quarter low of $40 and a fourth quarter high of $59. The
percentage of earnings per share paid out in dividends was increased to 37% from
the 30% previously paid out.
 
ASSET QUALITY
 
Management closely monitors and evaluates trends and developments in asset
quality. Internal loan review systems require detailed monthly analysis of
delinquencies, nonperforming assets and other sensitive credits. Generally, all
mortgage, commercial and consumer loans are moved to nonaccrual status once they
reach 90 days past due or when analysis of a borrower's creditworthiness
indicates the collection of interest and principal is in doubt.
 
In addition to nonperforming loans, total nonperforming assets include
nonperforming investment securities and real estate acquired in satisfaction of
debts previously contracted. Total underperforming assets add to this amount
loans which have been restructured to provide for a reduction of interest or
principal because of a deterioration in the financial condition of the borrower.
Also included as underperforming assets are loans which are more than 89 days
past due that continue to accrue interest income. The following table depicts
the trend in these potentially problematic asset categories.
 
<TABLE>
<CAPTION>
                                     1997     1996     1995
 <S>                                <C>      <C>      <C>
 Nonaccrual loans:
   1-4 residential mortgage         $  565   $  622   $  553
   Commercial mortgage                 986      754      777
   Commercial loans                     27        0        0
   Secured by farmland                   0        0      261
   Consumer loans                       57       17        6
   Home equity loans                    18       57        0
 -----------------------------------------------------------
 TOTAL NONACCRUAL LOANS              1,653    1,450    1,597
 Investment securities                   0        0      106
 Other real estate owned                 0       28      215
 -----------------------------------------------------------
 TOTAL NONPERFORMING ASSETS          1,653    1,478    1,918
 Loans ninety days past due
   and still accruing interest          10       18        7
 Restructured loans                    173      182      191
 -----------------------------------------------------------
 TOTAL UNDERPERFORMING ASSETS       $1,836   $1,678   $2,116
</TABLE>
 
The table below provides a number of asset quality ratios based on the data
presented above. Overall, asset quality remained reasonably stable during 1997.
 
<TABLE>
<CAPTION>
                                1997     1996     1995
<S>                            <C>      <C>      <C>
 
Nonperforming loans as a
  percentage of total loans     0.90%    0.87%    1.02%
Nonperforming assets as a
  percentage of total assets    0.42%    0.39%    0.53%
Underperforming assets as a
  percentage of total assets    0.47%    0.44%    0.59%
Underperforming assets as a
  percentage of equity
  capital plus allowance for
  loan losses                   4.27%    4.32%    5.94%
</TABLE>
 
- --------------------------------------------------------------------------------
 
                                                                         28
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   31
 
CORTLAND BANCORP AND SUBSIDIARIES
MANAGEMENT'S DISCUSSION AND ANALYSIS
(In thousands of dollars, except for per share amounts)
 
- --------------------------------------------------------------------------------
 
LOAN LOSS EXPERIENCE
 
For each year presented below, the provision for loan losses charged to
operations is based on management's judgment after taking into consideration all
known factors connected with the collectibility of the existing portfolio.
Management evaluates the portfolio in light of economic conditions, changes in
the nature and volume of the portfolio, industry standards and other relevant
factors. Specific factors considered by management in determining the amounts
charged to operations include previous loan loss experience, the status of past
due interest and principal payments, the quality of financial information
supplied by customers and the general economic condition of the communities in
which credit has been extended.
 
The following provides an analysis of the allowance for loan losses for the
periods indicated:
 
<TABLE>
<CAPTION>
                                              1997      1996      1995      1994      1993
                                              ----      ----      ----      ----      ----
<S>                                          <C>       <C>       <C>       <C>       <C>
Balance at beginning of year...............  $ 2,966   $ 3,011   $ 3,081   $ 3,139   $ 3,415
Loan losses:
     1-4 family residential mortgages......      (21)       (5)      (69)      (72)     (172)
     Commercial mortgages..................      (16)        0         0       (27)      (42)
     Consumer loans........................     (202)     (167)     (220)     (141)     (271)
     Commercial loans......................        0        (4)      (78)      (48)     (123)
     Home equity loans.....................      (13)        0         0         0        (7)
                                             -------   -------   -------   -------   -------
                                                (252)     (176)     (367)     (288)     (615)
                                             -------   -------   -------   -------   -------
Recoveries on previous loan losses:
     1-4 family residential mortgages......        2         3         4         4        26
     Commercial mortgages..................        0         0        78         6        28
     Consumer loans........................       85        72       152       156       202
     Commercial loans......................       11        56        63        64        83
     Home equity loans.....................        5         0         0         0         0
                                             -------   -------   -------   -------   -------
                                                 103       131       297       230       339
                                             -------   -------   -------   -------   -------
Net loan losses............................     (149)      (45)      (70)      (58)     (276)
                                             -------   -------   -------   -------   -------
Provision charged to operations............        0         0         0         0         0
                                             -------   -------   -------   -------   -------
Balance at end of year.....................  $ 2,817   $ 2,966   $ 3,011   $ 3,081   $ 3,139
                                             =======   =======   =======   =======   =======
Ratio of net loan losses to
  average net loans outstanding............    0.09%     0.03%     0.05%     0.04%     0.19%
                                             =======   =======   =======   =======   =======
Ratio of loan loss allowance to total
  loans....................................    1.53%     1.78%     1.93%     2.04%     2.15%
                                             =======   =======   =======   =======   =======
</TABLE>
 
The improvement in asset quality achieved over the past several years has
resulted in a low ratio of net loan losses to average net loans. The allowance
for loan loss at 170% of nonperforming loans and 153% of all underperforming
loans continues to provide ample coverage. Management has determined the
allowance to be adequate, requiring no further provision in the current year.
 
- --------------------------------------------------------------------------------
 
                                                                         29
<PAGE>   32
 
CORTLAND BANCORP AND SUBSIDIARIES
MANAGEMENT'S DISCUSSION AND ANALYSIS
(In thousands of dollars, except for per share amounts)
 
- --------------------------------------------------------------------------------
 
The following is an allocation of the allowance for loan losses. The allowance
has been allocated according to the amount deemed to be reasonably necessary to
provide for the possibility of losses being incurred within the following
categories of loans as of December 31, for the years indicated:
 
<TABLE>
<CAPTION>
                                                      1997     1996     1995     1994     1993
                                                     ------   ------   ------   ------   ------
<S>                                                  <C>      <C>      <C>      <C>      <C>
TYPES OF LOANS
1-4 family residential mortgages...................  $  427   $  387   $  351   $  385   $  405
Commercial mortgages...............................   1,378    1,179    1,118    1,223    1,029
Consumer loans.....................................     278      410      416      407      424
Commercial loans...................................     283      325      239      207      192
Home equity loans..................................      25       55       61       63       67
Unallocated portion................................     426      610      826      796    1,022
                                                     ------   ------   ------   ------   ------
                                                     $2,817   $2,966   $3,011   $3,081   $3,139
                                                     ======   ======   ======   ======   ======
</TABLE>
 
The allocations of the allowance as shown in the table above should not be
interpreted as an indication that future loan losses will occur in the same
proportions or that the allocations indicate future loan loss trends.
Furthermore, the portion allocated to each loan category is not the total amount
available for future losses that might occur within such categories since the
total allowance is applicable to the entire portfolio.
 
- --------------------------------------------------------------------------------
 
LOAN PORTFOLIO
 
The level of general economic activity quickened during 1997. The Company
realized an increase of $18,382 in the loan portfolio from the level of $166,109
recorded at December 31, 1996.
 
Residential lending's share of the portfolio remained steady during 1997 with
1-4 family residential mortgages representing 43.1% of total loans compared to
43.3% in 1996. The portion of the loan portfolio represented by commercial loans
(including commercial real estate) increased from 37.2% to 41.2%. Consumer loans
(including home equity loans) decreased from 19.5% to 15.7%.
 
The following chart indicates changes that have occurred in the composition of
the loan portfolio over the past five years. Residential lending, excluding home
equity loans, now comprises 43.1% of the portfolio, a decrease from its 47.4%
share in 1992. Home equity loans have also decreased from an 8.2% portfolio
share in 1992 to 5.4% in 1997. During that same time frame, traditional consumer
installment lending saw its share of the portfolio decline from 12.5% to 10.3%.
Meanwhile, the portfolio share claimed by commercial loans (including commercial
real estate) climbed to 41.2%, up from 31.9% five years ago, as the Company
aggressively pursued medium-to-small business relationships.
 
<TABLE>
<CAPTION>
                 LOAN PORTFOLIO COMPOSITION
                      (In Percentages)
<S>                    <C>       <C>                   <C>
1-4 Family Mortgages 43.1         1-4 Family Mortgages    47.4
Home Equity           5.4         Home Equity              8.2
Consumer             10.3         Consumer                12.5
Commercial           41.2         Commercial              31.9
         1997                                1992
</TABLE>
 
During 1997, approximately $17.9 million in new mortgage loans were originated
by the Company, an increase of $8.3 million from the prior year. The
 
- --------------------------------------------------------------------------------
 
                                                                         30
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   33
 
CORTLAND BANCORP AND SUBSIDIARIES
MANAGEMENT'S DISCUSSION AND ANALYSIS
(In thousands of dollars, except for per share amounts)
 
- --------------------------------------------------------------------------------
 
Company added an experienced mortgage banker in the second quarter of 1997.
Approximately 75% of all residential mortgage production occurred in the last
half of 1997.
 
With the yield and quality of mortgage loans favorable and production levels
still relatively moderate, management elected to hold approximately 80% of
mortgages originated in 1997. Management intends to continue to sell a portion
of both newly originated and refinanced fixed rate residential mortgage loans to
the Federal Home Loan Mortgage Corporation (FHLMC), while retaining servicing
rights. Annualized service fee income derived from the portfolio is now
approximately $25. A portion of mortgage loans are also sold to other investors
with servicing rights released.
 
Management seeks to further stimulate production of residential mortgage loans
in 1998. The new mortgage banker hired in 1997 will help further develop and
expand our market coverage. Emphasis continues to be placed on realtor call
programs. Management continues to pursue additional outlets for jumbo mortgage
products (in the range of $226,000 and up) and other non-standard mortgage
offerings. Management anticipates that mortgage production will increase by
40-50% in 1998, with a significant number of mortgage originations sold to FHLMC
and other investors.
 
Management remains committed to continuing its expansion into the
medium-to-small business sector. Management's expansion of business product
offerings, delivered by experienced commercial lenders, has paid off by
significantly increasing net commercial loans outstanding while building
medium-to-small business market share. Despite competitive pressures from
super-regional banks, the Company's focused marketing efforts towards this
sector is proving a successful competitive strategy. In addition to increasing
penetration within existing markets, management seeks to identify and enter new
markets as well. During 1997, the Company entered the southern Mahoning County
market and has experienced strong acceptance by area businesses.
 
Consumer lending is anticipated to remain flat. Increasingly consumers are
opting to lease rather than purchase personal vehicles. The Company has been
reasonably successful in marketing fixed rate amortizing mortgage products that
consumers utilize for home improvements; the purchase of consumer goods of all
types; education, travel, and other personal expenditures; and the consolidation
of credit card and other existing debt into term payout. However, as this
consumer activity is collateralized by residential real estate, it is included
with 1-4 residential mortgage lending.
 
Additional information regarding the loan portfolio can be found in the Notes to
the Consolidated Financial Statements (NOTES 1, 3, 9, 12 and 14).
 
INVESTMENT SECURITIES
 
Statement of Financial Accounting Standards No. 115 (SFAS 115), "Accounting for
Certain Investments in Debt and Equity Securities," requires that investment
securities be segregated into three separate portfolios: held to maturity,
available for sale and trading, each with its own method of accounting.
 
Held to maturity securities are recorded at historical cost, adjusted for
amortization of premiums and accretion of discounts. Trading securities are
marked-to-market, with any gain or loss reflected in the determination of
income. Securities designated as available for sale are similarly carried at
their fair market value. However, any gain or loss (net of tax) is recorded as
an adjustment to shareholders' equity.
 
One effect of SFAS 115 is to expose shareholders' equity to fluctuations
resulting from market volatility. The potential adverse impact of this
volatility, however, was mitigated when bank regulatory agencies decided to
measure capital adequacy for regulatory purposes without regard to the effects
of SFAS 115.
 
Securities designated by the Company as held to maturity tend to be higher
yielding but less liquid either due to maturity, size or other characteristics
of the issue. The Company must have both the
 
- --------------------------------------------------------------------------------
 
                                                                         31
<PAGE>   34
 
CORTLAND BANCORP AND SUBSIDIARIES
MANAGEMENT'S DISCUSSION AND ANALYSIS
(In thousands of dollars, except for per share amounts)
 
- --------------------------------------------------------------------------------
 
intent and the ability to hold such securities to maturity.
 
Securities the Company has designated as available for sale may be sold prior to
maturity in order to fund loan demand, to adjust for interest rate sensitivity,
to reallocate bank resources, or to reposition the portfolio to reflect changing
economic conditions and shifts in the relative values of market sectors.
Available for sale securities tend to be more liquid investments and generally
exhibit less price volatility as interest rates fluctuate.
 
As of December 31, 1997, the carrying value of all investment securities, both
available for sale and held to maturity, tallied $188,596, a decrease of $5,778
or 3.0% from the prior year. The allocation between single maturity investment
securities and mortgage-backed securities shifted slightly to a 59/41 split
versus the 61/39 division of the previous year. Mortgage-backed securities were
virtually unchanged, increasing by just $31.
 
Holdings of obligations of states and political subdivisions showed a net
increase of $3,811 as the Company sought to extend call dates as protection
against falling interest rates. The primary focus here was pre-refunded
municipals that are fully escrowed in U.S. Government obligations and high grade
callable municipals issued by Ohio communities.
 
The Company decreased its holdings of U.S. Treasury securities by approximately
$9.9 million, or 24.7% as securities were sold during the year to accommodate
liquidity needs and to reflect declining pledging requirements.
 
Investments in U.S. government agencies and sponsored corporations remained
virtually unchanged as purchases in high yielding callable issues were offset by
securities that were called during the year.
 
Marketable equity securities appreciated by $145 during 1997, while holdings of
other securities increased by $113 on stock dividends received from the Federal
Home Loan Bank of Cincinnati.
 
The mix of mortgage-backed securities reversed from a 54/46 weighting in favor
of floating rate and adjustable rate products in 1996 to a 55/45 weighting in
favor of fixed rate securities in 1997. Floating rate and adjustable rate
mortgage-backed securities provide some degree of protection against rising
interest rates, while fixed rate securities perform better in periods of stable
to slightly declining interest rates.
 
The portfolio mix of fixed rate and floating rate or adjustable rate
mortgage-backed securities for both 1997 and 1996 is graphically depicted below.
 
<TABLE>
<CAPTION>
            MORTGAGE-BACKED SECURITIES
                 PORTFOLIO MIX

                (In Percentage)
<S>                   <C>   <C>                  <C>
Fixed Rate             55    Fixed Rate            46
Variable & Adjustable  45    Variable & Adjustable 54
      1997                          1996
</TABLE>
 
Included in the mortgage-backed securities portfolio are investments in
collateralized mortgage obligations which totalled $13,869 and $12,632 at
December 31, 1997 and 1996, respectively. These investments are monitored and
subjected to regulatory prescribed stress tests. At both December 31, 1997 and
1996, none of these investments were considered "high risk" under regulatory
definitions. The Company has no investments in structured notes, inverse
floaters or other high risk derivative products.
 
At December 31, 1997, a net unrealized gain of $779, net of tax, was included in
shareholders' equity, as compared to a net unrealized gain of $286, net of tax,
as of December 31, 1996. This $493 increase primarily reflects the enhanced
market value of debt securities in general as interest rates declined throughout
much of the fourth quarter, reversing the trend toward higher rates established
earlier in the year. Higher interest rates generally translate into lower market
prices for
 
- --------------------------------------------------------------------------------
 
                                                                         32
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   35
 
CORTLAND BANCORP AND SUBSIDIARIES
MANAGEMENT'S DISCUSSION AND ANALYSIS
(In thousands of dollars, except for per share amounts)
 
- --------------------------------------------------------------------------------
 
debt securities; conversely falling interest rates generally result in an
appreciation in the market value of debt securities.
 
Additional information regarding investments can be found in the Notes to the
Consolidated Financial Statements (NOTES 1 and 2).
 
DEPOSITS
 
The Company's deposits are derived from the individuals and businesses located
in its primary market area. Total deposits at year-end exhibited a very modest
decrease of 0.09% to $319,738 at December 31, 1997 as compared to $320,030 at
December 31, 1996.
 
The Company's deposit base consists of demand deposits, savings, money market
and time deposit accounts. Average noninterest-bearing deposits increased 11.1%
during 1997, while average interest-bearing deposits decreased by 0.7%.
 
During 1997, noninterest-bearing deposits averaged $42,199 or 13.2% of total
average deposits as compared to $37,999 or 11.9% in 1996. Core deposits averaged
$287,661 for the year ended December 31, 1997, an increase of $4,039 or 1.4%
from the average level of 1996. During 1996, core deposits had averaged
$283,622, an increase of 5.9% from the preceding year.
 
Historically, the deposit base of the Company has been characterized by a
significant aggregate amount of core deposits. Core deposits represented 89.8%
of average total deposits in 1997 compared to 89.2% in 1996 and 90.5% in 1995.
 
Over the past five years, the Company has successfully increased the share of
deposits represented by noninterest-bearing and NOW checking accounts. These
products now comprise 20.4% of total deposits compared to only 14.4% five years
ago. The following depicts how the deposit mix has shifted during this time
frame.
 
<TABLE>
<CAPTION>
              AVERAGE DEPOSIT MIX
                (In Percentages)

<S>        <C>         <C>             <C>
Jumbo CD's    10.2        Jumbo CD's     6.6 
Other CD's    35.5        Other CD's    39.0 
Checking      13.2        Checking       8.1 
NOW            7.2        NOW            6.3 
Money Market   7.6        Money Market  11.5 
Savings       26.3        Savings       28.5 
      1997                      1992
</TABLE>
 
Additional information regarding interest-bearing deposits is presented in the
Notes to the Consolidated Financial Statements (NOTE 7).
 
RESULTS OF OPERATIONS
 
Common comparative ratios for results of operations are the return on average
equity and the return on average assets. The return on average equity amounted
to 11.6%, 12.0% and 10.8% for 1997, 1996 and 1995, respectively, while the
return on average assets amounted to 1.2% in 1997, 1.1% in 1996 and 1.0% in
1995.
 
Net interest income, the principal source of the Company's earnings, is the
amount by which interest and fees generated by interest-earning assets,
primarily loans and investment securities, exceed the interest cost of deposits
and borrowed funds. The net interest margin ratio registered 4.2%, both in 1997
and 1996 and 4.3% in 1995.
 
- --------------------------------------------------------------------------------
 
                                                                         33
<PAGE>   36
 
CORTLAND BANCORP AND SUBSIDIARIES
MANAGEMENT'S DISCUSSION AND ANALYSIS
(In thousands of dollars, except for per share amounts)
 
- --------------------------------------------------------------------------------
 
The following table provides a detailed analysis of changes in net interest
income, identifying that portion of the change that is due to a change in the
volume of average assets and liabilities outstanding versus that portion which
is due to a change in the average yields on earning assets and average rates on
interest-bearing liabilities. Changes due to both rate and volume which cannot
be segregated have been allocated in proportion to the changes due to rate and
volume.
 
       ANALYSIS OF NET INTEREST INCOME CHANGES (TAXABLE EQUIVALENT BASIS)
 
<TABLE>
<S>                                          <C>         <C>         <C>         <C>         <C>         <C>
- --------------------------------------------------------------------------------------------------------------------
                                                   1997 Compared to 1996               1996 Compared to 1995
                                             -----------------------------------------------------------------------
                                              Volume        Rate       Total      Volume        Rate       Total
- --------------------------------------------------------------------------------------------------------------------
  Increase (Decrease) in Interest Income
     Federal funds sold....................    $ 131      $    2      $  133       $ (88)      $ (13)      $(101)
     Trading account securities............        3           1           4           3           0           3
     Investment Securities
       U.S. Treasury and other U.S.
          Government agencies and
          corporations.....................        6          81          87       1,178        (154)      1,024
       U.S. Government mortgage-backed
          pass-through certificates........     (184)          6        (178)        449         140         589
       States of the U.S. and political
          subdivisions.....................       34         (27)          7         105          16         121
       Other securities....................       11           0          11          44           3          47
     Loans.................................    1,360        (112)      1,248         641          (7)        634
- --------------------------------------------------------------------------------------------------------------------
  Total Interest Income Change.............    1,361         (49)      1,312       2,332         (15)      2,317
- --------------------------------------------------------------------------------------------------------------------
  Increase (Decrease) in Interest Expense
     Interest-bearing demand deposits......       16         111         127          28          54          82
     Savings deposits......................      (58)         (6)        (64)        (17)        (70)        (87)
     Time deposits.........................      (21)         66          45         991         (48)        943
     U.S. Treasury interest-bearing
       demand note.........................        7           0           7          (4)         (2)         (6)
     Federal funds purchased...............      (74)          1         (73)         36          (6)         30
     Securities sold under agreements to
       repurchase..........................       46          11          57          16          (6)         10
     Other borrowings under one year.......      277           0         277           0           0           0
     Other borrowings over one year........      198          32         230         359         (11)        348
- --------------------------------------------------------------------------------------------------------------------
  Total Interest Expense Change............      391         215         606       1,409         (89)      1,320
- --------------------------------------------------------------------------------------------------------------------
  INCREASE (DECREASE) IN NET INTEREST
     INCOME ON A TAXABLE EQUIVALENT BASIS..    $ 970      $ (264)     $  706       $ 923       $  74       $ 997
- --------------------------------------------------------------------------------------------------------------------
</TABLE>
 
- --------------------------------------------------------------------------------
 
                                                                         34
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   37
 
CORTLAND BANCORP AND SUBSIDIARIES
MANAGEMENT'S DISCUSSION AND ANALYSIS
(In thousands of dollars, except for per share amounts)
 
- --------------------------------------------------------------------------------
 
Total other income for 1997 increased $95, or 5.9% compared to an increase of
$287, or 21.9% in 1996. Fees for customer services increased by $100 or 8.2%.
The increase reflects changes in the fee structure for debit card and ATM
transactions during 1997 and the effect of changes in the fees charged checking
account customers implemented during 1996. The Company experienced no net gain
or loss on the disposition of other real estate in 1997 compared to a net gain
of $27 in 1996 and a net loss of $32 recorded in 1995. Loans held for sale in
the secondary market showed gains of $76, $15 and $93 in 1997, 1996 and 1995,
respectively. Activity in trading securities, the early call of held to maturity
securities, and transactions involving available for sale securities combined to
produce net gains of $107 and $114 in 1997 and 1996, respectively, as compared
to more modest gains of $5 in 1995.
 
Other operating income decreased by $32 during 1997, following a $49 decrease in
1996. This income category is subject to fluctuation due to nonrecurring items,
with other operating income for 1995 having benefited from a $69 refund on the
Alpine class action settlement.
 
<TABLE>
<S>                           <C>         <C>         <C>
OTHER INCOME
                                 1997        1996        1995
Fees for other customer
  services                     $1,319      $1,219      $  973
Gain on sale of loans              76          15          93
Gain (loss) on sale of other
  real estate                       0          27         (32)
Other operating income            191         223         272
                              ---------------------------------
                                1,586       1,484       1,306
Trading securities net
  gains                            13          12           0
Investment securities net
  gains                            94         102           5
                              ---------------------------------
Total other income             $1,693      $1,598      $1,311
</TABLE>
 
Total other non-interest expenses increased by 3.0%, or $298 in 1997. This
compares to a decrease of $64, or 0.6% in 1996. Expenditures for salaries and
employee benefits increased by 5.1%, reflecting, in part, the staffing
requirements of the Company's newest branch office opened in the second half of
1997.
 
The FDIC dramatically reduced premium rates effective May 1995, reflecting the
improved condition of the banking system as FDIC reserves reached their targeted
funding level. As a result, the Bank experienced a year over year decline in
FDIC assessment expense of $332 in 1996 and an increase of $37 in 1997.
 
Occupancy and equipment expense increased by a combined 3.0%, or $52, reflecting
a partial year of operation for the Company's newest office. All other
categories of non-interest expense decreased by $72, or 2.6% in the aggregate,
as the Company continued to emphasize expense control while realizing the
benefits of maintaining high standards of asset quality.
 
<TABLE>
<S>                           <C>       <C>       <C>
NON-INTEREST EXPENSE
                                 1997      1996      1995
Salaries and benefits         $ 5,830   $ 5,549   $ 5,262
Net occupancy expense             684       666       611
Equipment expense               1,082     1,048     1,004
State and local taxes             521       473       414
FDIC assessment                    39         2       334
Office supplies                   480       488       473
Marketing expense                 256       265       255
Legal and litigation expense      182       277       263
Other operating expense         1,221     1,229     1,445
                              -------   -------   -------
Total other expenses          $10,295   $ 9,997   $10,061
</TABLE>
 
Salaries and employee benefits represented 56.6% of all non-interest expenses in
1997. Exclusive of FDIC, legal and litigation expenses, salaries and employee
benefits share of non-interest expense was 57.9%, 57.1% and 55.6% in 1997, 1996
and 1995, respectively. Salaries and employee benefits increased by $281 in 1997
following an increase of
 
- --------------------------------------------------------------------------------
 
                                                                         35
<PAGE>   38
 
CORTLAND BANCORP AND SUBSIDIARIES
MANAGEMENT'S DISCUSSION AND ANALYSIS
(In thousands of dollars, except for per share amounts)
 
- --------------------------------------------------------------------------------
 
$287 in 1996. The following details components of these increases:
 
<TABLE>
<CAPTION>
      ANALYSIS OF CHANGES IN SALARIES & BENEFITS
                       Amounts            Percent
                ----------------------------------------
                1997   1996   1995   1997   1996    1995
                ----------------------------------------
<S>             <C>    <C>    <C>    <C>    <C>    <C>
Salaries        $248   $295   $197    5.7%   7.3%    5.1%
Benefits          20     16     61    1.6    1.3     5.2
Profit Sharing    25     42     15   11.2   21.4     8.3
                ------------------
                 293    353    273    5.0    6.4     5.3
Def'd Loan
  Origination    (12)   (66)    33    4.2   30.0    13.1
                ------------------
                $281   $287   $306    5.1%   5.5%    6.2%
</TABLE>
 
During 1995 the Company was self-insured for employee medical and dental
benefits. The Plan limited the Company's exposure to risk by employing stop loss
coverage both on an individual and aggregate claim basis. The Company generally
experienced a favorable variance in medical claims when compared to traditional
premium based plans. However, in late 1995 management identified a premium based
Preferred Provider Plan that offered additional savings while increasing
benefits. This new plan was adopted by the Company effective February 1, 1996.
 
Full-time equivalent employment averaged 196 employees in 1997, 195 in 1996 and
194 in 1995. Wage and salary expense per employee averaged $23,455 in 1997,
$22,306 in 1996 and $20,897 in 1995, exclusive of profit sharing, which averaged
$1,263 per employee in 1997, $1,144 in 1996 and $1,014 in 1995. Productivity
ratios which measure employee efficiency continued to improve. Average earning
assets per employee measured $1,872 in 1997, $1,804 in 1996 and $1,647 in 1995.
 
FOURTH QUARTER 1997 AS
COMPARED TO FOURTH QUARTER 1996
 
During the fourth quarter of 1997, tax equivalent net interest income increased
by $195, a 5.2% increase over fourth quarter 1996. The yield on earning assets
increased by 6 basis points while fourth quarter average earning assets
increased by $14 million when compared to a year ago, resulting in an increase
in tax equivalent interest income of $341. The rate paid on interest-bearing
liabilities increased by 13 basis points while fourth quarter average
interest-bearing liabilities increased by $4 million when compared to a year
ago, resulting in an increase in total interest expense of $146. The net
interest margin for the quarter registered 4.2%, the same as that attained a
year ago.
 
Loan charge-offs during the quarter were $101 in 1997 and $38 in 1996, while the
recovery of previously charged-off loans amounted to $30 during the fourth
quarter of 1997 compared to $36 in the same period of 1996.
 
Despite a $26 decline in other operating income from a year ago, total other
income increased by $80. The increase was primarily due to the following: a $36
gain on sale of loans in 1997 compared to a $24 gain in the same period of 1996;
a $49 increase in fees for customer services, 40% of which came from ATM fees
enacted this quarter; and a $48 gain on investment securities.
 
Total other non-interest expenses in the fourth quarter were $2,807 in 1997
compared to $2,684 in 1996, an increase of $123 or 4.6%. Salaries and benefits
constituted a $53 increase, or 3.3%. Occupancy and equipment, office supplies
and marketing expenses increased by $43, or 6.8%, primarily due to the opening
of a new branch office in mid third quarter. State and local taxes and FDIC
assessments increased by $28, or 25.5%.
 
Income before income tax during the fourth quarter amounted to $1,504 in 1997
compared to $1,362 in 1996. Income tax expense for the fourth quarter of 1997
was $450 as compared to $415 in 1996. Fourth quarter net income was $1,054 in
1997 compared to $947 in 1996, representing an increase of $107, or 11%.
 
Earnings per share for the fourth quarter, adjusted for the 3% stock dividend
paid January 1, 1998, amounted to $0.93 in 1997 and $0.85 in 1996. There were no
gains or losses on investment securities in the fourth quarter of 1996, while
1997 fourth quarter earnings per share include after tax gains on investment
securities of $0.03 per share.
 
- --------------------------------------------------------------------------------
 
                                                                         36
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   39
 
CORTLAND BANCORP AND SUBSIDIARIES
MANAGEMENT'S DISCUSSION AND ANALYSIS
(In thousands of dollars, except for per share amounts)
 
- --------------------------------------------------------------------------------
 
ASSET-LIABILITY MANAGEMENT
 
The Company's Asset/Liability Committee, comprised of members of both senior
management and the Board of Directors, meets periodically to review the
Company's balance sheet structure and liquidity needs. The Company has defined a
set of key control parameters which provide various measures of the balance
sheet's exposure to changes in interest rates. The Company's goal is to produce
a net interest margin that is relatively stable despite interest rate volatility
while maintaining an acceptable level of earnings.
 
Included among the various measurement techniques used by the Company to
identify and manage exposure to changing interest rates is the use of computer
based simulation models. Computerized simulation techniques enable the Company
to explore and measure net interest income volatility under alternative asset
deployment strategies, different interest rate environments, various product
offerings and changing growth patterns.
 
                                   GAP TABLE
                               December 31, 1997
 
<TABLE>
<CAPTION>
                                                          Maturity or Repricing Interval
                                               -----------------------------------------------------
                                                                                Non Rate
                                                                                Sensitive
                                                                               or greater
                                               3 Months   3 to 12     1 to 5      than 5
                                               or Less     Months     Years       Years      Total
                                               --------   -------     ------    ---------    -----
<S>                                            <C>        <C>        <C>        <C>         <C>
Interest-Earning Assets
  Federal Funds Sold.........................  $ 3,100    $      0   $      0    $     0    $  3,100
  Investments................................   43,062      41,511     77,263     26,760     188,596
  Loans & Leases.............................   58,646      40,361     67,571     17,913     184,491
                                               --------   --------   --------    -------    --------
Total Earning Assets.........................  104,808      81,872    144,834     44,673     376,187
Other Assets.................................        0           0          0     16,575      16,575
                                               --------   --------   --------    -------    --------
Total Assets.................................  $104,808   $ 81,872   $144,834    $61,248    $392,762
                                               ========   ========   ========    =======    ========
Interest-Bearing Liabilities
  NOW & Supernow Accounts....................  $23,365    $      0   $      0    $     0    $ 23,365
  Money Market Accounts......................   22,593           0          0          0      22,593
  Passbook Savings...........................   82,236           0          0          0      82,236
  Time Deposits less than 100,000............   32,014      45,372     29,557      9,312     116,255
  Time Deposits greater than or 
    equal to 100,000.........................    9,136      10,786      8,642      1,073      29,637
  Repurchase Agreements......................    3,472           0          0          0       3,472
  U.S. Treasury Demand.......................    2,321           0          0          0       2,321
  Other Borrowings...........................   13,500       4,500      6,000      1,021      25,021
                                               --------   --------   --------    -------    --------
Total Interest-Bearing Liabilities...........  188,637      60,658     44,199     11,406     304,900
Demand Deposits..............................        0           0          0     45,652      45,652
Other Liabilities............................        0           0          0      2,001       2,001
Shareholders' Equity.........................        0           0          0     40,209      40,209
                                               --------   --------   --------    -------    --------
Total Liabilities & Equity...................  $188,637   $ 60,658   $ 44,199    $99,268    $392,762
                                               ========   ========   ========    =======    ========
Rate Sensitivity Gap.........................  $(83,829)  $ 21,214   $100,635    $33,267
Cumulative Gap...............................  $(83,829)  $(62,615)  $ 38,020    $71,287
Cumulative Gap to Total Assets...............     (21.3)%    (15.9)%      9.7%      18.2%
</TABLE>
 
- --------------------------------------------------------------------------------
 
                                                                         37
<PAGE>   40
 
CORTLAND BANCORP AND SUBSIDIARIES
MANAGEMENT'S DISCUSSION AND ANALYSIS
(In thousands of dollars, except for per share amounts)
 
- --------------------------------------------------------------------------------
 
The preceding Gap Table presents an analysis of the Company's earliest repricing
opportunity for each of its interest-earning assets and interest-bearing
liabilities. Assets are distributed according to the earlier of interest rate
repricing opportunity or expected cash flows. Time deposits and liabilities with
defined maturities are distributed according to the earlier of the repricing
interval or contractual maturity. Other core deposit accounts (NOW, Supernow,
Money Market and Savings accounts) are shown as being available for repricing in
the earliest time frame, although management can exert considerable influence
over the timing and manner of repricing these core deposits. Therefore, these
accounts may reprice in later time intervals and reflect smaller incremental
changes than other interest-earning assets and interest-bearing liabilities.
Since management may reprice these accounts at its discretion, the impact of
changing rates on net interest income is likely to be considerably less severe
than inferred by this table.
 
During much of 1997, the effective maturities of earning assets lengthened as
management sought to take advantage of the increase in interest rates that
occurred between March and September, as the Federal Reserve and certain
investors in the capital markets grew concerned that the economy would overheat,
reigniting inflation. These fears failed to materialize and by year-end focus
had shifted to the crises in the Asian economies and their potential
deflationary impact on the U.S. economy. As the yield curve flattened rapidly in
response, the likelihood that certain callable investments would indeed be
called heightened and the prospects for accelerating prepayments on loans and
mortgage backed securities increased similarly. The impact of these market
developments will most likely be to shorten the effective maturities of the
Company's earning assets.
 
While the preceding Gap Table provides a general indication of the potential
effect that changing interest rates may have on net interest income, it does not
by itself present a complete picture of interest rate sensitivity. Because the
repricing of the various categories of assets and liabilities is subject to
competitive pressures, customer preferences and other factors, such assets and
liabilities may in fact reprice in different time periods and in different
increments than assumed.
 
The computerized simulation techniques utilized by management provide a more
sophisticated measure of the degree to which the Company's interest sensitive
assets and liabilities may be impacted by changes in the general level of
interest rates. These analyses show the Company's net interest income remaining
relatively neutral within the economic and interest rate scenarios anticipated
by management. In fact, the Company's net interest margin has remained
relatively stable in the range of 4.2% to 4.4% over the past five years, despite
significant shifts in the mix of earning assets and the direction and level of
interest rates.
 
LIQUIDITY
 
The central role of the Company's liquidity management is to (1) ensure
sufficient liquid funds to meet the normal transaction requirements of its
customers, (2) take advantage of market opportunities requiring flexibility and
speed, and (3) provide a cushion against unforeseen liquidity needs.
 
Principal sources of liquidity for the Company include assets considered
relatively liquid, such as interest-bearing deposits in other banks, federal
funds sold, cash and due from banks, as well as cash flows from maturities and
repayments of loans, investment securities and mortgage-backed securities.
 
Cash and cash equivalents, which includes federal funds sold, increased $2,526
compared to year-end 1996. Investment securities maturing, repricing or expected
to be called in one year or less amounted to $78,170 at December 31, 1997,
representing 41.4% of the total combined portfolio, as compared to $72,370 and
37.2% a year ago.
 
Along with its liquid assets, the Company has other sources of liquidity
available to it which help to ensure that adequate funds are available as
needed. These other sources include, but are not limited to, the ability to
obtain deposits through the adjustment of interest rates, the purchasing of
federal funds, and access to the Federal Reserve
 
- --------------------------------------------------------------------------------
 
                                                                         38
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   41
 
CORTLAND BANCORP AND SUBSIDIARIES
MANAGEMENT'S DISCUSSION AND ANALYSIS
(In thousands of dollars, except for per share amounts)
 
- --------------------------------------------------------------------------------
 
Discount Window. The Company is a member of the Federal Home Loan Bank of
Cincinnati, which provides yet another source of liquidity.
 
Operating activities provided cash of $6.4 million, $3.9 million and $6.7
million in 1997, 1996 and 1995, respectively. Refer to the Consolidated
Statements of Cash Flows for a summary of the sources and uses of cash in 1997,
1996 and 1995.
 
CAPITAL RESOURCES
 
Regulatory standards for measuring capital adequacy require banks and bank
holding companies to maintain capital based on "risk-adjusted" assets so that
categories of assets of potentially higher credit risk require more capital
backing than assets with lower risk. In addition, banks and bank holding
companies are required to maintain capital to support, on a risk-adjusted basis,
certain off-balance sheet activities such as standby letters of credit and
interest rate swaps.
 
The risk based standards classify capital into two tiers. Tier 1 capital
consists of common shareholders' equity, noncumulative and cumulative perpetual
preferred stock, and minority interests less goodwill. Tier 2 capital consists
of a limited amount of the allowance for loan and lease losses, perpetual
preferred stock (not included in Tier 1), hybrid capital instruments, term
subordinated debt, and intermediate-term preferred stock.

The following graph, which is not "risk-adjusted," indicates that Tier 1 capital
as a percentage of total average assets has strengthened significantly over the
past several years. This measure of capital adequacy is known as the "leverage
ratio."
 
<TABLE>
<CAPTION>
   LEVERAGE RATIO
   (In Percentage)
<S>              <C>
1993               8.33
1994               8.97
1995               9.53
1996               9.51
1997              10.17
</TABLE>
 
The Federal Deposit Insurance Corporation Improvement Act of 1991 (FDICIA)
required banking regulatory agencies to revise risk-based capital standards to
ensure that they take adequate account of interest rate risk. Accordingly,
regulators will subjectively consider an institution's exposure to declines in
the economic value of its capital due to changes in interest rates in evaluating
capital adequacy.
 
The following table illustrates the Company's risk weighted capital ratios at
December 31, 1997 and 1996. Banks are required to maintain a minimum ratio of 8%
of qualifying total capital to risk-adjusted total assets. The Tier 1 capital
ratio must be at least 4%. Capital qualifying as Tier 2 capital is limited to
100% of Tier 1 capital. As the table indicates, the Company maintains both Tier
1 and total risk-based capital well in excess of the required regulatory minimum
ratios.
 
<TABLE>
<CAPTION>
                           RISK-BASED CAPITAL
                           ------------------
                                           December 31,     December 31,
                                               1997             1996
                                           ------------     ------------
<S>                                       <C>              <C>
Tier 1 Capital                               $ 38,933         $ 35,006
Tier 2 Capital                                  2,326            2,112
                                             --------         --------
QUALIFYING CAPITAL                           $ 41,259         $ 37,118
                                             ========         ========
Risk-Adjusted Total Assets(*)                $185,571         $168,097
                                             ========         ========
Tier 1 Risk-Based Capital Ratio                20.98%           20.82%
Total Risk-Based Capital Ratio                 22.23%           22.08%
Total Leverage Capital Ratio                   10.17%            9.51%
</TABLE>
 
                    (*) Includes off-balance sheet exposures
 
SFAS 115, "Accounting for Certain Investments in Debt and Equity Securities,"
requires that investments designated as available for sale be marked-to-market
with corresponding entries to the deferred tax account and shareholders' equity.
Regulatory agencies, however, have decided to exclude these adjustments in
computing risk based capital, as their inclusion would tend to potentially
increase the volatility of this important measure of capital adequacy.
Additional information regarding regulatory matters can be found in the Notes to
the Consolidated Financial Statements (NOTE 13.)
 
- --------------------------------------------------------------------------------
 
                                                                         39
<PAGE>   42
 
CORTLAND BANCORP AND SUBSIDIARIES
MANAGEMENT'S DISCUSSION AND ANALYSIS
(In thousands of dollars, except for per share amounts)
 
- --------------------------------------------------------------------------------
 
NET INTEREST MARGIN
 
Net Interest Margin is the difference between total interest earned on a fully
taxable equivalent basis and total interest expensed. The Net Interest Margin
Ratio expresses this difference as a percentage of average earning assets.
 
Interest-earning assets averaged $367,009 during 1997, representing a 4.3%
increase over 1996. 1996 earning assets had averaged $351,730 for a 10.1%
increase over 1995. The yield on interest-earning assets was 7.8%, 7.8% and 7.9%
in 1997, 1996 and 1995, respectively. The average rate incurred on
interest-bearing liabilities was 4.4%, 4.3% and 4.2% for those same years.
Interest-bearing liabilities averaged $300,633 for 1997, increasing by 2.1% from
1996 levels which averaged $294,544.
 
<TABLE>
<CAPTION>
 NET INTEREST MARGIN RATIO
     (In Percentages)
  <S>          <C>
   1993           4.4
   1994           4.4
   1995           4.3
   1996           4.2
   1997           4.2
</TABLE>
 
The decline in the Net Interest Margin Ratio reflects the Company's renewed
emphasis on growth without sacrificing credit quality. As a result, a larger
share of earning assets are represented by investments which provide a smaller
gross margin than loans which entail greater credit risk and require more
underwriting and servicing expense. Investments in 1997 comprised 51.3% of
average earning assets, up from 42.5% five years ago, but down from 54.1% in
1996.
 
Growth objectives have required management to increase its utilization of more
expensive funding sources. Borrowed funds represented 6.1% of average earning
assets in 1997 compared to 4.1% in 1996 and 2.2% in 1995, contributing to the
narrowing of the Net Interest Margin.
 
IMPACT OF INFLATION
 
Consolidated financial information included herein has been prepared in
accordance with generally accepted accounting principles which require the
Company to measure financial position and operating results in terms of
historical dollars. Changes in the relative value of money due to inflation are
generally not considered. Neither the price, timing nor the magnitude of changes
directly coincide with changes in interest rates.
 
YEAR 2000
 
The Company has established a "Year 2000 (Y2K) project management team" to
provide a structured format for thoroughly addressing the Y2K problem. The
project team seeks to ensure that operational and financial systems are not
adversely affected by Y2K software or hardware failures due to calculations
using the year 2000 date. The Company expects to incur Y2K program costs over
the next three years of approximately $100,000 to $500,000 to replace, or
repair, computer applications and equipment to make them "Year 2000 compliant."
These cost estimates are not expected to represent significant amounts of
incremental costs, but rather a reallocation and resequencing of existing and
planned technology resources.
 
Management is requiring vendors and providers of computer equipment to represent
that all products provided are, or will be, Year 2000 compliant. The Y2K project
team has also planned a program of testing for compliance. Subsidiary bank
personnel are also actively educating and alerting customers to the potential
Y2K issues, including inquiries as to the readiness and preparedness of key loan
customers.
 
Ultimate success is dependent upon the cooperation and ability of vendors,
customers and all levels of government and governmental agencies (including the
Federal Reserve) to meet the Y2K challenge. The problem is truly global in
nature, and its successful resolution depends upon everyone, everywhere, doing
their part. It is recognized that the failure of any of these parties to achieve
Year 2000 compliance could result in additional expense to the Company.
 
- --------------------------------------------------------------------------------
 
                                                                         40
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   43
 
INFORMATION AS TO STOCK PRICES AND DIVIDENDS OF CORTLAND BANCORP
 
- --------------------------------------------------------------------------------
 
OTHER INFORMATION
 
The Company files quarterly reports (Forms 10-Q) as well as an annual report
(Form 10-K) with the Securities and Exchange Commission. The quarterly reports
are filed within 45 days of the end of each quarter, while the annual report is
filed within 90 days of the end of each year. Any individual requesting copies
of such reports may obtain these by writing to:
 
Deborah L. Eazor
Cortland Bancorp
194 West Main Street, Cortland, Ohio 44410
 
The market for the common stock of the Company is not highly active and trading
has historically been limited. The following brokerage firms are known to be
relatively active in trading the Company's stock:
 
Community Banc Investments, Inc.
Columbus, Ohio
Contact: Greig A. McDonald
Telephone: 1-800-224-1013
 
Everen Securities, Inc.
201 E. Commerce Street
Youngstown, Ohio
Contact: Joseph E. Campana
Telephone: 1-800-541-5348

McDonald & Company Securities, Inc.
International Towers Building
25 Market Street
Youngstown, Ohio 44503
Telephone: 1-330-746-2993
 
Smith Barney Inc.
Youngstown, Ohio
Telephone: 1-800-535-0017
 
The following table shows the prices at which the common stock of the Company
has actually been purchased and sold in market transactions during the periods
indicated. The range of market price is compiled from data provided by brokers
based on limited trading. Also shown in the table are the dividends per share on
the outstanding common stock. All figures shown have been adjusted to give
retroactive effect to the 3% stock dividend paid as of January 1, 1998, 1997 and
1996. The Company currently has approximately 1,437 shareholders.
 
<TABLE>
<CAPTION>
                                                           Price Per Share           Cash
                                                      -------------------------    Dividends
                                                         High           Low        Per Share
                                                      -----------       ---        ---------
<S>                                                   <C>           <C>           <C>
1997
FOURTH QUARTER......................................      59            48           $0.97
THIRD QUARTER.......................................      50            45 1/4        0.00
SECOND QUARTER......................................      47            42            0.49
FIRST QUARTER.......................................      45 1/8        40            0.00
 
1996
Fourth Quarter......................................      41 1/2        37 1/2       $0.71
Third Quarter.......................................      38 3/8        35 1/2        0.00
Second Quarter......................................      37 1/4        34 3/4        0.41
First Quarter.......................................      37            29 3/4        0.00
 
1995
Fourth Quarter......................................      32            25 1/2       $0.56
Third Quarter.......................................      27 1/4        25 1/4        0.00
Second Quarter......................................      27 1/2        25            0.37
First Quarter.......................................      27            23 1/2        0.00
</TABLE>
 
For the convenience of shareholders, the Company has established a plan whereby
shareholders may have their dividends automatically reinvested in the common
stock of Cortland Bancorp. In addition, shareholders may elect to supplement
their dividends with cash contributions to fund additional purchases.
Participation in the plan is completely voluntary and shareholders may withdraw
at any time.
 
For current stock prices you may access our home page at www.cortland-banks.com.
 
For more information on the dividend reinvestment plan, you may contact Deborah
L. Eazor at the following telephone number: (330) 637-8040.
 
- --------------------------------------------------------------------------------
 
                                                                         41
<PAGE>   44
 
                                CORTLAND BANCORP
 


                               BOARD OF DIRECTORS


 
                                RODGER W. PLATT
                                    CHAIRMAN
 
                               P. BENNETT BOWERS
 
                                 DAVID C. COLE
 
                               GEORGE E. GESSNER
 
                               WILLIAM A. HAGOOD
 
                              JAMES E. HOFFMAN III
 
                               RICHARD L. HOOVER
 
                               DENNIS E. LINVILLE
 
                                  K. RAY MAHAN
 
                               TIMOTHY K. WOOFTER
 


                                    OFFICERS
 
                                RODGER W. PLATT
                             CHAIRMAN AND PRESIDENT
 
                               DENNIS E. LINVILLE
                            EXECUTIVE VICE PRESIDENT
                            AND CORPORATE SECRETARY
 
                             LAWRENCE A. FANTAUZZI
                            TREASURER AND CONTROLLER
 
                                JAMES M. GASIOR
                            VICE PRESIDENT AND CHIEF
                               OPERATIONS OFFICER


 
                      CORTLAND BANKS OFFICES AND LOCATIONS
 
                Thirteen Offices Serving These Fine Communities
 
                                    BOARDMAN
                               8580 South Avenue
                             Youngstown, Ohio 44514
                                  330-758-5884
 
                                    BRISTOL
                              6090 State Route 45
                            Bristolville, Ohio 44402
                                  330-889-3062
 
                                   BROOKFIELD
                            7325 Warren-Sharon Road
                             Brookfield, Ohio 44403
                                  330-448-6814
 
                                    CORTLAND
                              194 West Main Street
                              Cortland, Ohio 44410
                                  330-637-8040
 
                                     HIRAM
                              6821 Wakefield Road
                               Hiram, Ohio 44234
                                  330-569-3237
 
                                    HUBBARD
                            890 West Liberty Street
                              Hubbard, Ohio 44425
                                  330-534-2265
 
                                     MANTUA
                               10521 Main Street
                               Mantua, Ohio 44255
                                  330-274-3111
 
                                     NILES
                          6050 Youngstown-Warren Road
                               Niles, Ohio 44446
                                  330-544-3333
 
                                NORTH BLOOMFIELD
                              8837 State Route 45
                          North Bloomfield, Ohio 44450
                                  440-685-4731
 
                                     VIENNA
                            4434 Warren-Sharon Road
                               Vienna, Ohio 44473
                                  330-394-1438
 
                                     WARREN
                                 2935 Elm Road
                               Warren, Ohio 44483
                                  330-372-1520
 
                                 WILLIAMSFIELD
                              5917 U.S. Route 322
                           Williamsfield, Ohio 44093
                                  440-293-7502
 
                                    WINDHAM
                            9690 East Center Street
                              Windham, Ohio 44288
                                  330-326-2340
 
                                     Member
                             Federal Reserve System
                                      and
                     Federal Deposit Insurance Corporation
 
               Visit us at our home page on the world wide web at
                             www.cortland-banks.com
                    or Email us at [email protected]
 
                                                                         42
                                                         [CORTLAND BANCORP LOGO]
<PAGE>   45
 
                    THE CORTLAND SAVINGS AND BANKING COMPANY
 


                               BOARD OF DIRECTORS


 
                               P. BENNETT BOWERS
                            Bowers Insurance Agency
 
                                 DAVID C. COLE
                                General Manager
                           Cole Valley Motor Company
 
                               GEORGE E. GESSNER
                                    Attorney
 
                               WILLIAM A. HAGOOD
                     President, Tri-City Mobile Homes, Inc.
 
                              JAMES E. HOFFMAN III
                                    Attorney
 
                               RICHARD L. HOOVER
                                   Consultant
 
                               DENNIS E. LINVILLE
                            Executive Vice President
 
                                  K. RAY MAHAN
                          President, Mahan Packing Co.
 
                                RODGER W. PLATT
                             President and Chairman
 
                               TIMOTHY K. WOOFTER
                      President, Stan-Wade Metal Products
 
                                 PAUL C. BOWERS
                               Director Emeritus
 
                                  R. B. KNIGHT
                               Director Emeritus
 
                                JOHN F. GESSNER
                               Director Emeritus
 
                               STANLEY L. WOOFTER
                               Director Emeritus
 
                                 *  *  *  *  *
 
                                    OFFICERS


 
                                RODGER W. PLATT
                             President and Chairman
 
                               DENNIS E. LINVILLE
                Executive Vice President and Corporate Secretary
 
                             LAWRENCE A. FANTAUZZI
                  Senior Vice President, Controller, Treasurer
                          and Chief Financial Officer
 
                                JAMES M. GASIOR
               Senior Vice President and Chief Operations Officer
 
                               CHARLES J. COMMONS
                                 Vice President
 
                               GERALD L. THOMPSON
                                 Vice President
 
                                 MARLENE LENIO
                                 Vice President
 
                                EMMA JEAN WOLLAM
                                 Vice President
 
                                  TED BANGERT
                                 Vice President
 
                               ROBERT J. HORVATH
                                 Vice President
 
                               T. WILLIAM ELLIOTT
                                 Vice President
 
                             STEPHEN A. TELEGO, SR.
                 Vice President and Director of Human Resources
 
                                CARLO A. CICCONE
                     Vice President and Chief Audit Officer
 
                                 DANNY L. WHITE
                            Assistant Vice President
 
                                 GERARD F. KANE
                            Assistant Vice President
 
                                 MARK GOVERNOR
                            Assistant Vice President
 
                                MARCEL P. ARNAL
                            Assistant Vice President
 
                                  JAMES A. REA
                            Assistant Vice President
 
                                  JUDY RUSSELL
                            Assistant Vice President
 
                                 GRACE J. BACOT
                            Assistant Vice President
 
                                   JAMES DUFF
                            Assistant Vice President
 
                                BEVERLY KOSTOFF
                            Assistant Vice President
 
                                 PIETRO PASCALE
                            Assistant Vice President
 
                                  KEITH MROZEK
                            Assistant Vice President
 
                                FRANK R. SEDALL
                            Assistant Vice President
 
                                MARK J. MEDIATE
                            Assistant Vice President
 
                                SHIRLEY F. ROOT
                            Assistant Vice President
 
                               JOYCE P. RATCLIFF
                   Assistant Vice President and Trust Officer
 
                                 CRAIG PHYTHYON
                            Assistant Vice President
 
                                 TIMOTHY CARNEY
                            Assistant Vice President
 
                                  DOUGLAS BLAY
                            Assistant Vice President
 
                                 ROSE A. STROUD
                         Assistant Secretary-Treasurer
 
                                JANET K. HOUSER
                         Assistant Secretary-Treasurer
 
                                DEBORAH L. EAZOR
                         Assistant Secretary-Treasurer
 
                               RUSSELL E. TAYLOR
                              Assistant Treasurer
 
                                 STEVE J. MACK
                              Assistant Secretary
 
                                   SUE FABIAN
                              Assistant Secretary
 
                                  DAVID IKLODI
                              Assistant Secretary
 
                                  DARLENE MACK
                              Assistant Secretary
 
                                                                         43

<PAGE>   1
                                                                      Exhibit 21






SUBSIDIARIES OF THE REGISTRANT



     The following lists the subsidiaries of the registrant and the state of
incorporation of each:

                     NAME                               INCORPORATED
                     ----                               ------------
     1)  The Cortland Savings and Banking Company           Ohio

     2)  New Resources Leasing Company                      Ohio








<PAGE>   1
                                                                      Exhibit 23



                       CONSENT OF INDEPENDENT AUDITORS

We consent to the incorporation by reference in the Prospectuses constituting
part of the Registration Statements on Form S-8 for the Cortland Savings and
Banking 401(k) Plan and Form S-3 for the Cortland Bancorp Dividend Reinvestment
Plan of our report dated February 13, 1998 on the 1997 consolidated financial
statements of Cortland Bancorp and subsidiaries, which report is incorporated
by reference in this form 10-K.




Youngstown, Ohio                          PACKER, THOMAS & CO.
March 25, 1998


<TABLE> <S> <C>

<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM 1997 ANNUAL
REPORT AND 1997 10K AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                           9,509
<INT-BEARING-DEPOSITS>                               0
<FED-FUNDS-SOLD>                                 3,100
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                    115,413
<INVESTMENTS-CARRYING>                          73,183
<INVESTMENTS-MARKET>                            73,684
<LOANS>                                        184,491
<ALLOWANCE>                                      2,817
<TOTAL-ASSETS>                                 392,762
<DEPOSITS>                                     319,738
<SHORT-TERM>                                    15,793
<LIABILITIES-OTHER>                              2,001
<LONG-TERM>                                     15,021
                                0
                                          0
<COMMON>                                         5,691
<OTHER-SE>                                      34,518
<TOTAL-LIABILITIES-AND-EQUITY>                 392,762
<INTEREST-LOAN>                                 15,981
<INTEREST-INVEST>                               12,211
<INTEREST-OTHER>                                   185
<INTEREST-TOTAL>                                28,377
<INTEREST-DEPOSIT>                              12,081
<INTEREST-EXPENSE>                              13,347
<INTEREST-INCOME-NET>                           15,030
<LOAN-LOSSES>                                        0
<SECURITIES-GAINS>                                  94
<EXPENSE-OTHER>                                 10,295
<INCOME-PRETAX>                                  6,428
<INCOME-PRE-EXTRAORDINARY>                       4,454
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     4,454
<EPS-PRIMARY>                                     3.93
<EPS-DILUTED>                                     3.93
<YIELD-ACTUAL>                                     4.2
<LOANS-NON>                                      1,653
<LOANS-PAST>                                        10
<LOANS-TROUBLED>                                   173
<LOANS-PROBLEM>                                    676
<ALLOWANCE-OPEN>                                 2,966
<CHARGE-OFFS>                                      252
<RECOVERIES>                                       103
<ALLOWANCE-CLOSE>                                2,817
<ALLOWANCE-DOMESTIC>                             2,391
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                            426
        

</TABLE>


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