NORTH FORK BANCORPORATION INC
S-3/A, 1996-11-22
STATE COMMERCIAL BANKS
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<PAGE>   1
 
   
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 22, 1996
    
 
   
                                                      REGISTRATION NO. 333-11985
    
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
   
                                AMENDMENT NO. 1
    
   
                                       TO
    
 
                                    FORM S-3
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
 
                        NORTH FORK BANCORPORATION, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                 <C>                                 <C>
              DELAWARE                              6712                             36-3154608
    (STATE OR OTHER JURISDICTION        (PRIMARY STANDARD INDUSTRIAL              (I.R.S. EMPLOYER
 OF INCORPORATION OR ORGANIZATION)      CLASSIFICATION CODE NUMBER)            IDENTIFICATION NUMBER)
</TABLE>
 
                             275 BROAD HOLLOW ROAD
                            MELVILLE, NEW YORK 11747
                                 (516) 298-5000
         (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING
            AREA CODE, OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
                            ------------------------
 
                           JOHN ADAM KANAS, PRESIDENT
                        NORTH FORK BANCORPORATION, INC.
                             275 BROAD HOLLOW ROAD
                            MELVILLE, NEW YORK 11747
                                 (516) 844-1004
           (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER,
                   INCLUDING AREA CODE, OF AGENT FOR SERVICE)
                            ------------------------
 
                                   COPIES TO:
 
   
<TABLE>
<S>                                                  <C>
             WILLIAM S. RUBENSTEIN, ESQ.                            MITCHELL KLEINMAN, ESQ.
                SKADDEN, ARPS, SLATE,                                  BROWN & WOOD LLP
                 MEAGHER & FLOM LLP                                  1 WORLD TRADE CENTER
                  919 THIRD AVENUE                                 NEW YORK, NEW YORK 10048
              NEW YORK, NEW YORK 10022                                  (212) 839-5300
                   (212) 735-3000
</TABLE>
    
 
                            ------------------------
 
     APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable after the effectiveness of this Registration Statement.
 
     If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box.  [ ]
 
     If any of the securities being registered on this form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box.  [ ]
 
     If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering.  [ ] _________
 
     If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [ ] _______
 
     If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box.  [ ]
                            ------------------------
 
     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT THAT SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933, AS AMENDED, OR UNTIL THE REGISTRATION STATEMENT
SHALL BECOME EFFECTIVE ON SUCH DATE AS THE SECURITIES AND EXCHANGE COMMISSION,
ACTING PURSUANT TO SAID SECTION 8(A), MAY DETERMINE.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   2
 
     INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A
     REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
     SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR
     MAY OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT
     BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR
     THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE
     SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE
     UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS
     OF ANY SUCH STATE.
 
   
                SUBJECT TO COMPLETION -- DATED NOVEMBER 22, 1996
    
 
PROSPECTUS
   
                                 600,000 SHARES
    
 
                        NORTH FORK BANCORPORATION, INC.
                                  COMMON STOCK
                            ------------------------
   
     All of the 600,000 shares of common stock, par value $2.50 per share (the
"Common Stock"), of North Fork Bancorporation, Inc. ("North Fork"), a Delaware
corporation, being offered hereby are being sold by North Fork. The Common Stock
is traded on the New York Stock Exchange ("NYSE") under the symbol "NFB." The
last reported sale price of the Common Stock on November 20, 1996 as reported by
the NYSE was $33.75 per share.
    
 
                            ------------------------
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
  AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
    ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE
     CONTRARY IS A CRIMINAL OFFENSE.
 
THESE SECURITIES ARE NOT SAVINGS ACCOUNTS, DEPOSITS OR OTHER OBLIGATIONS OF A
   BANK OR SAVINGS ASSOCIATION, AND ARE NOT INSURED BY THE FEDERAL DEPOSIT
     INSURANCE CORPORATION OR ANY OTHER GOVERNMENTAL AGENCY.
 
                            ------------------------
 
<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------------
                                                          UNDERWRITING
                                      PRICE TO            DISCOUNTS AND          PROCEEDS TO
                                       PUBLIC            COMMISSIONS(1)         NORTH FORK(2)
- -------------------------------------------------------------------------------------------------
<S>                           <C>                   <C>                   <C>
Per Share......................           $                     $                     $
- -------------------------------------------------------------------------------------------------
Total..........................  $                     $                     $
- -------------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------------
</TABLE>
 
(1) North Fork has agreed to indemnify the Underwriter against certain
    liabilities, including liabilities under the Securities Act of 1933, as
    amended. See "Underwriting."
 
   
(2) Before deducting expenses of the offering payable by North Fork estimated at
    $241,336.
    
 
     The shares of Common Stock are offered by the Underwriter, subject to prior
sale, to withdrawal, cancellation or modification of the offer without notice,
to delivery and acceptance by the Underwriter and to certain further conditions.
It is expected that delivery of the shares of Common Stock offered hereby will
be made to the Underwriter on behalf of the purchasers in this offering on or
about             , 1996.
 
                            ------------------------
 
                         KEEFE, BRUYETTE & WOODS, INC.
                            ------------------------
               The date of this Prospectus is             , 1996
<PAGE>   3
 
     IN CONNECTION WITH THIS OFFERING, THE UNDERWRITER MAY OVER-ALLOT OR EFFECT
TRANSACTIONS WHICH STABILIZE OR MAINTAIN THE MARKET PRICE OF THE COMMON STOCK AT
A LEVEL ABOVE THAT WHICH MIGHT OTHERWISE PREVAIL IN THE OPEN MARKET. SUCH
TRANSACTIONS MAY BE EFFECTED ON THE NYSE OR OTHERWISE. SUCH STABILIZING, IF
COMMENCED, MAY BE DISCONTINUED AT ANY TIME.
 
                             AVAILABLE INFORMATION
 
     North Fork is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and in accordance
therewith files reports, proxy statements and other information with the
Securities and Exchange Commission (the "Commission"). The reports, proxy
statements and other information filed by North Fork with the Commission can be
inspected and copied at the public reference facilities maintained by the
Commission at Room 1024, 450 Fifth Street, N.W., Washington, D.C. 20549, and at
the Commission's Regional Offices at 7 World Trade Center, New York, New York
10048 and Northwestern Atrium Center, 500 West Madison, Suite 1400, Chicago,
Illinois 60661. Copies of such material also can be obtained from the Public
Reference Section of the Commission at 450 Fifth Street, N.W., Washington, D.C.
20549, at prescribed rates or from the Web Site maintained by the Commission at
"http://www.sec.gov.". In addition, material filed by North Fork can be
inspected at the offices of the New York Stock Exchange, Inc., 20 Broad Street,
New York, New York 10005.
 
     North Fork has filed with the Commission a Registration Statement on Form
S-3 (together with any amendments thereof, the "Registration Statement") under
the Securities Act of 1933, as amended (the "Securities Act"), with respect to
the securities to be offered hereby. This Prospectus does not contain all the
information set forth in the Registration Statement and the exhibits thereto.
Such additional information may be inspected and copied as set forth above.
Statements contained in this Prospectus or in any document incorporated by
reference in this Prospectus as to the contents of any contract or other
document referred to herein or therein are not necessarily complete, and in each
instance reference is made to the copy of such contract or other document filed
as an exhibit to the Registration Statement or such other document, each such
statement being qualified in all respects by such reference.
 
                                        2
<PAGE>   4
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
     The following documents filed with the Commission by North Fork (File No.
0-10280) are incorporated by reference in this Prospectus:
 
          1. North Fork's Annual Report on Form 10-K for the fiscal year ended
     December 31, 1995 (the "1995 Form 10-K").
 
   
          2. North Fork's Quarterly Reports on Form 10-Q for the quarters ended
     March 31, 1996, June 30, 1996 and September 30, 1996.
    
 
   
          3. North Fork's Current Reports on Form 8-K, dated March 15, 1996 (as
     amended by a Form 8-K/A), July 15, 1996, September 12, 1996 and October 10,
     1996.
    
 
          4. The description of North Fork Common Stock and North Fork Series A
     Junior Participating Preferred Stock and Preferred Stock Purchase Rights
     set forth in North Fork's registration statements filed by North Fork
     pursuant to Section 12 of the Exchange Act including any amendment or
     report filed for purposes of updating any such description.
 
          5. The portions of North Fork's Proxy Statement for the Annual Meeting
     of Stockholders held on April 23, 1996 that have been incorporated by
     reference in the 1995 Form 10-K.
 
   
          6. The Joint Proxy Statement/Prospectus of North Fork and North Side,
     dated October 4, 1996, relating to the Merger (the "Joint Proxy
     Statement/Prospectus") other than the sections entitled
     "Summary -- Selected Historical Financial Information", "Summary -- Pro
     Forma Combined Selected Historical Financial Information",
     "Summary -- Selected Financial Ratios", "Summary  -- Comparative Per Share
     Data", "Pro Forma Condensed Combined Financial Statements", "Opinions of
     Financial Advisors" and the annexes to such Joint Proxy
     Statement/Prospectus.
    
 
   
     All documents and reports filed by North Fork pursuant to Sections 13(a),
13(c), 14 or 15(d) of the Exchange Act after the date of this Prospectus and
prior to the termination of this offering shall be deemed to be incorporated by
reference in this Prospectus and to be a part hereof from the dates of filing of
such documents or reports. Any statement contained in a document or report
incorporated or deemed to be incorporated by reference herein shall be deemed to
be modified or superseded for purposes of this Prospectus to the extent that a
statement contained herein, or in any other subsequently filed document or
report which also is deemed to be incorporated by reference herein, modifies or
supersedes such statement. Any such statement so modified or superseded shall
not be deemed, except as so modified or superseded, to constitute a part of this
Prospectus.
    
 
     This Prospectus incorporates documents by reference which are not presented
herein or delivered herewith. Such documents (other than exhibits to such
documents unless such exhibits are specifically incorporated by reference) are
available, without charge, to any person to whom this Prospectus is delivered,
upon written or oral request, directed to North Fork Bancorporation, Inc., 275
Broad Hollow Road, Melville, New York 11747, Attention: Anthony Abate,
Secretary, telephone number (516) 844-1004.
 
                                        3
<PAGE>   5
 
     THIS PROSPECTUS AND THE JOINT PROXY STATEMENT/PROSPECTUS INCORPORATED BY
REFERENCE HEREIN CONTAIN CERTAIN FORWARD LOOKING STATEMENTS WITH RESPECT TO THE
FINANCIAL CONDITION, RESULTS OF OPERATIONS AND BUSINESS OF NORTH FORK FOLLOWING
THE CONSUMMATION OF THE MERGER, INCLUDING STATEMENTS RELATING TO: (A) THE COST
SAVINGS AND REVENUE ENHANCEMENTS THAT ARE EXPECTED TO BE REALIZED FROM THE
MERGER AND (B) PROJECTED 1997 EARNINGS PER SHARE. SEE "THE MERGER -- OPERATIONS
FOLLOWING THE MERGER." FACTORS THAT MAY CAUSE ACTUAL RESULTS TO DIFFER
MATERIALLY FROM THOSE CONTEMPLATED BY SUCH FORWARD LOOKING STATEMENTS INCLUDE,
AMONG OTHERS, THE FOLLOWING POSSIBILITIES: (1) EXPECTED COST SAVINGS OR REVENUE
ENHANCEMENTS FROM THE MERGER CANNOT BE FULLY REALIZED; (2) DEPOSIT ATTRITION,
CUSTOMER LOSS OR REVENUE LOSS FOLLOWING THE MERGER IS GREATER THAN EXPECTED; (3)
COMPETITIVE PRESSURE IN THE BANKING AND FINANCIAL SERVICES INDUSTRY INCREASES
SIGNIFICANTLY; (4) CHANGES IN THE INTEREST RATE ENVIRONMENT REDUCE MARGINS; AND
(5) GENERAL ECONOMIC CONDITIONS, EITHER NATIONALLY OR IN THE STATE OF NEW YORK,
ARE LESS FAVORABLE THAN EXPECTED.
 
                                   NORTH FORK
 
     North Fork.  North Fork, with its executive headquarters located in
Melville, New York, is a bank holding company organized under the laws of the
State of Delaware in 1980 and registered under the Bank Holding Company Act of
1956, as amended. North Fork's primary subsidiary, North Fork Bank, operates 65
retail banking facilities throughout Suffolk, Nassau, New York, Queens,
Westchester and Rockland Counties of New York. North Fork, through North Fork
Bank, provides a variety of banking and financial services to middle market and
small business organizations, local government units, and retail customers in
the metropolitan New York area.
 
   
     During the first quarter of 1996, North Fork Bank consummated the
acquisition of the domestic commercial banking business of Extebank, which at
closing had approximately $388 million in assets and $348 million in deposits,
for $47 million in cash. During such quarter, North Fork Bank also consummated
the acquisition of ten Long Island branches of First Nationwide Bank, with
approximately $572 million in deposits, at a deposit premium of 6.35%.
    
 
   
     North Fork recognized net income of $44.8 million, or $1.81 per share for
the first nine months of 1996, which includes a nonrecurring, after-tax charge
of $5 million, or $.20 cents per share, associated with the recapitalization of
the Savings Association Insurance Fund ("SAIF") which resulted in a return on
average total assets and return on average stockholders' equity of 1.54% and
19.48%. This compares to net income of $38.7 million, or $1.59 per share earned
in the comparable 1995 period. It is expected that deposit insurance costs will
be reduced, in the future, as a result of the SAIF recapitalization. Net income
excluding the SAIF charge in the nine month period ended September 30, 1996
would have been $49.8 million or $2.01 per share which would have resulted in a
return on average total assets and return on average stockholders' equity of
1.72% and 21.66%, respectively, as compared to 1.82% and 18.71%, respectively,
for the prior year period.
    
 
   
     At September 30, 1996, North Fork had assets of $4.1 billion, deposits of
$3.2 billion and stockholders' equity of $314 million. The principal executive
offices of North Fork are located at 275 Broad Hollow Road, Melville, New York
11747 and its telephone number is (516) 844-1004.
    
 
     For additional information about North Fork, reference is made to the 1995
Form 10-K which is incorporated herein by reference. See "AVAILABLE INFORMATION"
and "INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE."
 
                                        4
<PAGE>   6
 
                   SELECTED HISTORICAL FINANCIAL INFORMATION
                                  (UNAUDITED)
 
   
     The following summary historical consolidated financial information
(unaudited) has been derived from, and should be read in conjunction with, the
historical financial statements of North Fork, including the related notes
thereto incorporated by reference in this Prospectus. See "INCORPORATION OF
CERTAIN DOCUMENTS BY REFERENCE."
    
 
                        NORTH FORK BANCORPORATION, INC.
 
                   SELECTED HISTORICAL FINANCIAL INFORMATION
                                  (UNAUDITED)
              (in thousands, except ratios and per share amounts)
 
   
<TABLE>
<CAPTION>
                                 NINE MONTHS ENDED
                                   SEPTEMBER 30,                           YEARS ENDED DECEMBER 31,
                              -----------------------   --------------------------------------------------------------
                               1996(1)        1995         1995         1994         1993         1992         1991
                              ----------   ----------   ----------   ----------   ----------   ----------   ----------
<S>                           <C>          <C>          <C>          <C>          <C>          <C>          <C>
CONSOLIDATED SUMMARY OF
  OPERATIONS:
  Interest income............ $  216,248   $  164,384   $  226,398   $  203,733   $  191,630   $  210,780   $  225,855
  Interest expense...........     85,564       60,346       85,162       71,227       73,169      105,714      136,464
                              ----------    ---------    ---------    ---------    ---------    ---------    ---------
  Net interest income........    130,684      104,038      141,236      132,506      118,461      105,066       89,391
                              ----------    ---------    ---------    ---------    ---------    ---------    ---------
  Provision for loan
    losses...................      4,500        6,000        9,000        3,275       10,300       23,775       66,625
  Non-interest income........     20,583       15,550       20,942       19,020       18,938       16,860       13,399
  Net security
    gains/(losses)...........      2,428        3,173        6,379       (9,211)       1,457        9,547        9,052
  Other real estate
    expense..................      1,052           41          255        3,651       13,971       16,358       10,663
  Merger and related
    restructure charges......         --           --           --       14,338           --        1,200           --
  Non-interest expense.......     65,132       49,843       68,588       74,453       71,962       72,104       62,663
  SAIF recapitalization 
     charge(3)...............      8,350           --           --           --           --           --           --
                              ----------    ---------    ---------    ---------    ---------    ---------    ---------
  Income/(loss) before income
    taxes....................     74,661       66,877       90,714       46,598       42,623       18,036      (28,109)
  Provision/(benefit) for
    income taxes.............     29,825       28,195       38,479       16,926       16,976        8,609         (164)
                              ----------    ---------    ---------    ---------    ---------    ---------    ---------
  Net income/(loss).......... $   44,836   $   38,682   $   52,235   $   29,672   $   25,647   $    9,427   $  (27,945)
                              ==========    =========    =========    =========    =========    =========    =========
Weighted average common
  shares outstanding(2)......     24,759       24,391       24,554       23,763       23,242       19,689       18,490
  Common shares outstanding
    at period end............     24,144       24,807       24,843       23,047       22,446       20,171       19,086
CONSOLIDATED PER SHARE DATA:
  Earnings/(loss)
    per share(2)(3).......... $     1.81   $     1.59   $     2.13   $     1.25   $     1.10   $     0.48   $    (1.51)
  Cash dividends declared.... $     0.60   $     0.40   $      .55   $      .35           --           --   $      .34
  Dividend payout ratio......         33%          25%          26%          28%          --           --           --
  Stated Book value at
    period-end............... $    12.99   $    12.06   $    12.47   $    11.06   $    10.08   $     9.08   $     8.71
  Tangible Book value at
    period-end............... $     9.53   $    10.98   $    11.40   $    10.10   $     8.91   $     7.70   $     7.18
CONSOLIDATED BALANCE SHEET
  DATA AT PERIOD END:
  Securities Available-for-
    Sale(4).................. $1,060,885   $  463,081   $  814,485   $  141,805   $  200,219   $  338,841   $  415,276
  Securities
    Held-to-Maturity.........    369,853      546,355      342,143      631,492      771,648      319,286       25,714
  Loans, net of unearned
    income and fees..........  2,399,617    1,920,008    1,966,440    1,814,037    1,740,778    1,807,119    1,987,560
  Allowance for loan
    losses...................     48,912       51,222       50,210       50,069       56,556       69,583       63,722
  Intangibles................     83,458       26,896       26,633       22,208       26,239       27,834       29,450
  Total assets...............  4,098,519    3,105,035    3,303,311    2,717,776    2,884,375    2,691,011    2,854,876
  Deposits...................  3,238,369    2,504,119    2,535,460    2,342,887    2,348,545    2,387,368    2,503,661
  Borrowings.................    474,807      185,938      401,369       70,000      268,643       41,200       27,366
  Senior notes payable.......     25,000       25,000       25,000       25,000       20,000       40,000       40,000
  Stockholders' equity....... $  313,665   $  299,192   $  309,845   $  254,923   $  226,310   $  183,147   $  166,475
</TABLE>
    
 
                                        5
<PAGE>   7
 
   
<TABLE>
<CAPTION>
                                 NINE MONTHS ENDED
                                   SEPTEMBER 30,                           YEARS ENDED DECEMBER 31,
                               1996(1)        1995         1995         1994         1993         1992         1991
                              ----------   ---------    ---------    ---------    ---------    ---------    ---------
<S>                           <C>          <C>          <C>          <C>          <C>          <C>          <C>
CONSOLIDATED AVERAGE BALANCE
  SHEET DATA:
  Securities................. $1,389,526   $  788,291   $  857,302   $  968,908   $  869,792   $  544,966   $  450,831
  Loans, net of unearned
    income and fees..........  2,207,681    1,873,141    1,893,654    1,773,088    1,735,122    1,906,438    1,884,440
  Total assets...............  3,878,257    2,838,347    2,928,773    2,933,943    2,820,491    2,782,480    2,542,179
  Deposits...................  2,515,422    2,056,765    2,464,776    2,363,965    2,363,652    2,467,494    2,172,622
  Total borrowings...........    416,673       78,765      137,893      293,732      213,078      112,758      146,797
  Stockholders' equity....... $  307,402   $  276,439   $  283,024   $  244,759   $  210,345   $  169,155   $  191,749
SELECTED FINANCIAL RATIOS:
  Return on Average Total
    Assets(3)................       1.54%        1.82%        1.78%        1.01%         .91%         .34%       (1.10)%
  Return on Average Total
    Stockholders'
    Equity(3)................      19.48%       18.71%       18.46%       12.12%       12.19%        5.57%      (14.57)%
  Net Interest Margin........       4.93%        5.26%        5.18%        4.81%        4.48%        4.03%        3.90%
  Tier 1 Capital Ratio.......      10.13%       15.83%       15.50%       14.94%       12.06%        9.28%        7.30%
  Risk Adjusted
    Capital Ratio............      11.39%       17.10%       16.77%       16.22%       13.34%       10.65%        8.84%
  Leverage Ratio.............       5.86%        9.26%        8.86%        8.40%        6.88%        5.83%        4.85%
  Allowance for Loan Losses
    to Net Loans.............       2.04%        2.67%        2.55%        2.76%        3.25%        3.85%        3.21%
  Allowance for Loan Losses/
    Nonperforming Loans......        240%         122%         154%         119%          96%          54%          44%
  Net Charge-Offs to Average
    Net Loans................       0.54%        0.38%         .49%         .57%        1.34%         .94%        2.88%
  Nonperforming Assets to
    Total Assets.............       0.53%        1.43%        1.13%        1.73%        2.43%        5.19%        5.76%
</TABLE>
    
 
- ---------------
 
   
(1) In March 1996, North Fork completed its purchase of the domestic commercial
     banking business of Extebank, and the ten Long Island banking branches of
     First Nationwide Bank. As a result of these acquisitions, North Fork added
     approximately $200 million in net loans and $920 million in deposit
     liabilities. The intangibles created in the aforementioned transactions
     aggregated approximately $60 million.
    
 
   
(2) North Fork's historical earnings per share for the nine months ended
     September 30, 1996 and 1995 and for the five years ended December 31, 1995,
     were based on weighted average common shares outstanding as dilution from
     potentially dilutive common stock equivalents was less than 3% for each
     period.
    
 
   
(3) Net income for the nine months ended September 30, 1996, excluding the
     nonrecurring SAIF recapitalizaton charge, would have been approximately
     $49.8 million, or $2.01 per share. Return on average total assets and
     return on average total stockholders' equity, excluding the nonrecurring
     SAIF recapitalization charge, was 1.72% and 21.66%, respectively.
    
 
   
(4) Effective January 1, 1994, North Fork adopted Statement of Financial
     Accounting Standards No. 115, "Accounting for Certain Investments in Debt
     and Equity Securities." The Statement requires that securities
     available-for-sale be reported at fair value, with unrealized gains and
     losses reflected as a separate component of stockholders' equity. Prior to
     1994, these securities were included in the Held-for-Sale category and
     carried at the lower of cost or market with unrealized losses or gains
     included in net income.
    
 
                                        6
<PAGE>   8
 
                                   THE MERGER
 
GENERAL
 
   
     On July 15, 1996, North Fork and North Side Savings Bank ("North Side")
entered into an Agreement and Plan of Merger (the "Merger Agreement") pursuant
to which North Side will merge with and into North Fork Bank (the "Merger"),
with North Fork Bank surviving the Merger as a wholly owned subsidiary of North
Fork. The Merger Agreement provides that upon consummation of the Merger, each
issued and outstanding share of common stock, par value $1.00 per share, of
North Side (the "North Side Common Stock"), except for shares held directly or
indirectly by North Side or North Fork (other than shares held by North Fork or
North Side in a fiduciary capacity or in respect of a debt previously
contracted) and shares of North Side Common Stock as to which the holder thereof
shall have exercised dissenter's rights, will be converted into and exchangeable
for 1.556 shares (the "Exchange Ratio") of Common Stock.
    
 
     It is expected that the Merger will be accounted for as a pooling of
interests. See "-- Conditions to the Merger" below. The shares of Common Stock
being offered hereby will be reissued out of North Fork's treasury in order that
the Merger will not fail to qualify for pooling of interests accounting
treatment by virtue of the number of shares of Common Stock held by North Fork
in treasury.
 
OPERATIONS FOLLOWING THE MERGER
 
     North Fork expects to achieve significant cost savings subsequent to the
Merger. The cost savings are expected to be derived from reductions in
personnel, elimination of one branch location located in a community in which
both North Fork and North Side branches are located, the integration of North
Side's data processing operations with those of North Fork, and the integration
of other facilities and back office operations. Further, because North Side will
be merged with and into North Fork Bank, the costs associated with operating as
a publicly held entity will also be eliminated. The aggregate annual pre-tax
cost savings are estimated to range between $8 million and $11 million.
Management of North Fork believes that realization of these cost savings will
occur by the end of the first quarter following consummation of the Merger.
There can be no assurance that all of the potential cost savings will be
realized or that they will be realized in the time frame currently estimated or
thereafter. Such realization will depend upon, among other things, the
regulatory and economic environment, business changes implemented by North Fork
management and other factors, certain of which are beyond the control of North
Fork. A summary and expected range of cost savings follows:
 
<TABLE>
<CAPTION>
                                                                       EXPECTED RANGE OF
                                                                            SAVINGS
                                                                       -----------------
        <S>                                                            <C>
        ($ in millions)
        Compensation.................................................    $4.5 to $ 6.0
        Occupancy and Equipment......................................    $0.9 to $ 1.5
        Other Operating Expense......................................    $2.6 to $ 3.5
                                                                         -------------
        Total Savings................................................    $8.0 to $11.0
</TABLE>
 
     In addition, North Fork believes, based on its previous experience in
acquiring savings banks and branches of savings banks, that revenue enhancement
opportunities exist with the offering of commercial bank products to North
Side's customers and the communities North Side serves. These products include
but are not limited to a variety of demand deposit accounts, discount brokerage,
investment management and trust services, cash management, annuity and mutual
fund products and commercial and installment loans to small and midsize
businesses. Management of North Fork estimates that annual revenue enhancements
resulting from the Merger could approximate $11 million, on a pre-tax basis. The
amounts and realization of any additional revenues will depend upon a number of
factors including, but not limited to, competition, the economic environment and
regulatory requirements, which are all beyond the control of North Fork.
 
     Based on the above-described estimated cost savings and revenue
enhancements which could be realized in connection with the Merger, North Fork
believes that the Merger will be accretive to earnings per share in 1997 by
approximately $.28 per share relative to consensus Wall Street analyst estimates
(made prior to
 
                                        7
<PAGE>   9
 
announcement of the proposed Merger) as compiled by Zacks Investment Research, a
public supplier of such information, of $2.96 per share, exclusive of the
one-time merger and restructuring charge expected to be incurred in connection
with the Merger. The table below sets forth in more detail North Fork's
estimated 1997 earnings per share.
 
   
<TABLE>
<CAPTION>
                                                               AFTER TAX      OUTSTANDING
                                                               EARNINGS*        SHARES         EPS
                                                               ----------     -----------     -----
<S>                                                            <C>            <C>             <C>
(in thousands, except earnings per share amounts)
North Fork...................................................   $  72,100        24,314       $2.96
North Side...................................................   $  20,100            --          --
Pro Forma Combined...........................................   $  92,200        32,358       $2.85
Estimated Cost Savings.......................................   $   5,900
Pro Forma Combined with Cost Savings.........................   $  98,100        32,358       $3.03
Estimated Revenue Enhancements
Increase in Non-Interest Income..............................   $   1,730                     $0.05
Demand Deposit Generation....................................   $   1,270                     $0.04
Additional Margin for Loan Growth............................   $   3,600                     $0.12
(average of $300 million)
Pro Forma with Revenue Growth................................   $ 104,700        32,358       $3.24
</TABLE>
    
 
- ---------------
 
   
* Assumes an effective tax rate of 40%.
    
 
   
     A nonrecurring merger and restructuring charge ranging from $13.3 million
to $16.7 million, net of tax, will be incurred upon consummation of the Merger.
For additional information concerning such charge, see the notes to the "PRO
FORMA CONDENSED COMBINED FINANCIAL STATEMENTS (UNAUDITED)."
    
 
   
     For additional factors that could cause actual results to differ materially
from the estimates described above, see the additional disclosure contained in
"INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE." Additional information
concerning the Merger is contained in this Prospectus and included in documents
incorporated by reference herein. See "PRO FORMA CONDENSED COMBINED FINANCIAL
STATEMENTS (UNAUDITED)" and "INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE."
    
 
CONDITIONS TO THE MERGER
 
   
     Consummation of the Merger is subject to various conditions, including
receipt of the approvals of North Fork's and North Side's shareholders and all
necessary regulatory approvals and the expiration of any waiting periods in
respect thereof. On November 18, 1996, the shareholders of each of North Fork
and North Side approved the Merger. Consummation of the Merger is also subject
to receipt of opinions of counsel regarding certain tax aspects of the Merger,
receipt of a letter from North Fork's independent auditors that the Merger
qualifies for pooling of interests accounting treatment and satisfaction of
other customary closing conditions. No assurance can be provided as to whether,
or when, the regulatory approvals necessary to consummate the Merger will be
obtained or whether all other conditions precedent to the Merger will be
satisfied or waived by the party permitted to do so. The sale of the shares
offered hereby will occur prior to the closing of the Merger and it is not a
condition of such sale that all of the conditions to the Merger shall have been
satisfied or waived prior to such sale. In the event that all of the conditions
to the Merger are not satisfied or waived, the Merger will not be completed.
    
 
                                        8
<PAGE>   10
 
                          PRO FORMA CONDENSED COMBINED
                              FINANCIAL STATEMENTS
                                  (UNAUDITED)
 
   
     The following statements set forth certain selected condensed financial
information for North Fork and North Side on an unaudited pro forma combined
basis giving effect to the Merger as if the Merger had become effective on
September 30, 1996, in the case of the balance sheet information presented, and
as if the Merger had become effective at the beginning of the periods indicated,
in the case of the income statement information presented. The pro forma
information in the statements assumes that the Merger is accounted for using the
pooling of interests method of accounting. Financial information for the nine
months ended September 30, 1996 and 1995 combine North Fork and North Side with
North Side's interim results presented to coincide with the reporting period of
North Fork. These statements should be read in conjunction with, and are
qualified in their entirety by, the historical financial statements, including
the notes thereto, of North Fork and North Side incorporated by reference
herein. See "INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE."
    
 
   
     The pro forma condensed combined financial statements do not give effect to
the anticipated cost savings and revenue enhancement opportunities that could
result from the Merger (see "THE MERGER -- Operations Following the Merger"),
and do not purport to be indicative of the combined financial position or
results of operations of future periods or indicative of the results that would
have occurred had the Merger been consummated on September 30, 1996 or at the
beginning of the periods indicated.
    
 
                                        9
<PAGE>   11
 
           NORTH FORK BANCORPORATION, INC. -- NORTH SIDE SAVINGS BANK
 
                   PRO FORMA CONDENSED COMBINED BALANCE SHEET
                                  (UNAUDITED)
   
                               SEPTEMBER 30, 1996
    
                             (Dollars in thousands)
 
   
<TABLE>
<CAPTION>
                                                                            PRO FORMA               NORTH FORK
                                                 NORTH FORK   NORTH SIDE   ADJUSTMENTS              PRO FORMA
                                                 ----------   ----------   ------------             ----------
<S>                                              <C>          <C>          <C>                      <C>
(in thousands, except per share amounts)
ASSETS
Cash and Due from Banks........................  $  125,803   $   12,778                            $  138,581
Money Market Investments.......................          --       17,142                                17,142
Securities:
  Available-for-Sale...........................   1,060,885      347,374        6,894(2)(3)          1,415,153
  Held-to-Maturity.............................     369,853      660,867                             1,030,720
                                                 ----------   ----------     --------               ----------
  Total Securities.............................   1,430,738    1,008,241        6,894                2,445,873
                                                 ----------   ----------     --------               ----------
Loans, net of Unearned Income and Fees.........   2,399,617      569,230                             2,968,847
  Allowance for Loan Losses....................      48,912        5,786                                54,698
                                                 ----------   ----------     --------               ----------
  Net Loans....................................   2,350,705      563,444           --                2,914,149
                                                 ----------   ----------     --------               ----------
Premises and Equipment, Net....................      53,417       14,528                                67,945
Intangibles....................................      83,458        1,079                                84,537
Other Real Estate..............................       1,346        2,405                                 3,751
Other Assets...................................      53,052       19,465        6,824(2)(5)(6)          79,341
                                                 ----------   ----------     --------               ----------
          Total Assets.........................  $4,098,519   $1,639,082     $ 13,718               $5,751,319
                                                 ==========   ==========     ========               ==========
LIABILITIES AND STOCKHOLDERS' EQUITY
Non-Interest Bearing Deposits..................  $  644,710   $   40,459                            $  685,169
Interest Bearing Deposits......................   2,593,659    1,171,774                             3,765,433
                                                 ----------   ----------     --------               ----------
  Total Deposits...............................   3,238,369    1,212,233           --                4,450,602
                                                 ----------   ----------     --------               ----------
Other Borrowings...............................     474,807      286,000                               760,807
Senior Note Payable............................      25,000           --                                25,000
Accrued Expenses and Other Liabilities.........      46,678       13,319       22,000(5)                81,997
                                                 ----------   ----------     --------               ----------
          Total Liabilities....................   3,784,854    1,511,552       22,000                5,318,406
                                                 ----------   ----------     --------               ----------
STOCKHOLDERS' EQUITY
Preferred Stock................................          --           --                                    --
Common Stock...................................      62,621        4,854       13,089(2)                80,564
Additional Paid in Capital.....................     105,198       87,914      (17,725)(2)(3)           175,387
Retained Earnings..............................     175,001       37,136      (16,960)(5)(6)           195,177
Unrealized Losses on Securities
  Available-for-Sale, net of taxes.............      (5,333)      (1,941)      (1,791)(2)               (9,065)
Deferred Compensation..........................      (1,702)        (433)         433(6)                (1,702)
Treasury Stock.................................     (22,120)          --       14,672(3)                (7,448)
                                                 ----------   ----------     --------               ----------
          Total Stockholders' Equity...........     313,665      127,530       (8,282)                 432,913
                                                 ----------   ----------     --------               ----------
          Total Liabilities and Stockholders'
            Equity.............................  $4,098,519   $1,639,082     $ 13,718               $5,751,319
                                                 ==========   ==========     ========               ==========
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                                                                                                    NORTH FORK
                                                 NORTH FORK                                         PRO FORMA
                                                 ----------                                         ----------
<S>                                              <C>                                                <C>
SELECTED CAPITAL RATIOS
Tier 1 Capital Ratio...........................      10.13%                                             11.64%
Risk Adjusted Capital Ratio....................      11.39%                                             12.79%
Leverage Ratio.................................       5.86%                                              6.26%
</TABLE>
    
 
 See "NOTES TO PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS (UNAUDITED)."
 
                                       10
<PAGE>   12
 
           NORTH FORK BANCORPORATION, INC. -- NORTH SIDE SAVINGS BANK
 
                PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
                                  (UNAUDITED)
   
                  FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1996
    
                    (in thousands, except per share amounts)
 
   
<TABLE>
<CAPTION>
                                                                                                     NORTH FORK
                                                                NORTH FORK(7)      NORTH SIDE(1)     PRO FORMA
                                                                --------------     -------------     ----------
<S>                                                             <C>                <C>               <C>
Interest Income...............................................     $216,248          $  83,642        $299,890
Interest Expense..............................................       85,564             45,195         130,759
                                                                   --------            -------        --------
  Net Interest Income.........................................      130,684             38,447         169,131
Provision for Loan Losses.....................................        4,500                600           5,100
                                                                   --------            -------        --------
  Net Interest Income after Provision for Loan Losses.........      126,184             37,847         164,031
Non-Interest Income...........................................       20,583              1,610          22,193
Net Security Gains............................................        2,428                540           2,968
Other Real Estate Expense.....................................        1,052               (177)            875
Non-Interest Expense..........................................       65,132             16,865          81,997
SAIF Recapitalization Charge(8)...............................        8,350                 --           8,350
                                                                   --------            -------        --------
  Income before Income Taxes..................................       74,661             23,309          97,970
Provision for Income Taxes....................................       29,825              9,792          39,617
                                                                   --------            -------        --------
  Net Income(8)...............................................     $ 44,836          $  13,517        $ 58,353
                                                                   ========            =======        ========
Pro Forma Weighted Average Shares Outstanding(4)..............       24,759              5,001          32,541
Earnings Per Share(8).........................................        $1.81              $2.70           $1.79
</TABLE>
    
 
 See "NOTES TO PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS (UNAUDITED)."
 
           NORTH FORK BANCORPORATION, INC. -- NORTH SIDE SAVINGS BANK
 
                PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
                                  (UNAUDITED)
 FOR THE YEAR ENDED DECEMBER 31, 1995 FOR NORTH FORK AND SEPTEMBER 30, 1995 FOR
                                   NORTH SIDE
                    (in thousands, except per share amounts)
 
   
<TABLE>
<CAPTION>
                                                                                                     NORTH FORK
                                                                NORTH FORK(7)       NORTH SIDE       PRO FORMA
                                                                --------------     -------------     ----------
<S>                                                             <C>                <C>               <C>
Interest Income...............................................     $226,398          $ 105,775        $332,173
Interest Expense..............................................       85,162             55,230         140,392
                                                                   --------           --------        --------
  Net Interest Income.........................................      141,236             50,545         191,781
Provision for Loan Losses.....................................        9,000              2,825          11,825
                                                                   --------           --------        --------
  Net Interest Income after Provision for Loan Losses.........      132,236             47,720         179,956
Non-Interest Income...........................................       20,942              2,461          23,403
Net Security Gains............................................        6,379                355           6,734
Other Real Estate Expense.....................................          255              1,000           1,255
Non-Interest Expense..........................................       68,588             23,058          91,646
                                                                   --------           --------        --------
  Income before Income Taxes..................................       90,714             26,478         117,192
Provision for Income Taxes....................................       38,479             11,371          49,850
                                                                   --------           --------        --------
  Net Income..................................................     $ 52,235          $  15,107        $ 67,342
                                                                   ========           ========        ========
Pro Forma Weighted Average Shares Outstanding(4)..............       24,554              4,785          31,999
Earnings Per Share............................................        $2.13              $3.15           $2.10
</TABLE>
    
 
 See "NOTES TO PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS (UNAUDITED)."
 
                                       11
<PAGE>   13
 
           NORTH FORK BANCORPORATION, INC. -- NORTH SIDE SAVINGS BANK
                PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
                                  (UNAUDITED)
 FOR THE YEAR ENDED DECEMBER 31, 1994 FOR NORTH FORK AND SEPTEMBER 30, 1994 FOR
                                   NORTH SIDE
                    (in thousands, except per share amounts)
 
<TABLE>
<CAPTION>
                                                                                                     NORTH FORK
                                                                  NORTH FORK        NORTH SIDE       PRO FORMA
                                                                --------------     -------------     ----------
<S>                                                             <C>                <C>               <C>
Interest Income...............................................     $203,733          $  90,931        $294,664
Interest Expense..............................................       71,227             41,349         112,576
                                                                    -------             ------         -------
  Net Interest Income.........................................      132,506             49,582         182,088
Provision for Loan Losses.....................................        3,275              3,550           6,825
                                                                    -------             ------         -------
  Net Interest Income after Provision for Loan Losses.........      129,231             46,032         175,263
Non-Interest Income...........................................       19,020              2,928          21,948
Net Security Losses...........................................       (9,211)                --          (9,211)
Other Real Estate Expense.....................................        3,651              1,278           4,929
Merger and Related Restructure Charges........................       14,338                 --          14,338
Non-Interest Expense..........................................       74,453             24,739          99,192
                                                                    -------             ------         -------
  Income before Income Taxes..................................       46,598             22,943          69,541
Provision for Income Taxes....................................       16,926              9,576          26,502
                                                                    -------             ------         -------
  Net Income..................................................     $ 29,672          $  13,367        $ 43,039
                                                                    =======             ======         =======
Pro Forma Weighted Average Shares Outstanding(4)..............       23,763              4,751          31,156
Earnings Per Share............................................        $1.25              $2.82           $1.38
</TABLE>
 
 See "NOTES TO PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS (UNAUDITED)."


           NORTH FORK BANCORPORATION, INC. -- NORTH SIDE SAVINGS BANK
                PRO FORMA CONDENSED COMBINED STATEMENT OF INCOME
                                  (UNAUDITED)
 FOR THE YEAR ENDED DECEMBER 31, 1993 FOR NORTH FORK AND SEPTEMBER 30, 1993 FOR
                                   NORTH SIDE
                    (in thousands, except per share amounts)
 
<TABLE>
<CAPTION>
                                                                                                     NORTH FORK
                                                                  NORTH FORK        NORTH SIDE       PRO FORMA
                                                                --------------     -------------     ----------
<S>                                                             <C>                <C>               <C>
Interest Income...............................................     $191,630          $  97,415        $289,045
Interest Expense..............................................       73,169             43,984         117,153
                                                                    -------             ------         -------
  Net Interest Income.........................................      118,461             53,431         171,892
Provision for Loan Losses.....................................       10,300             16,308          26,608
                                                                    -------             ------         -------
  Net Interest Income after Provision for Loan Losses.........      108,161             37,123         145,284
Non-Interest Income...........................................       18,938              2,930          21,868
Net Security Gains/(Losses)...................................        1,457               (136)          1,321
Other Real Estate Expense.....................................       13,971             11,275          25,246
Net Loss on Disposition of Assets.............................           --             11,063          11,063
Non-Interest Expense..........................................       71,962             37,320         109,282
                                                                    -------             ------         -------
  Income/(Loss) before Income Taxes...........................       42,623            (19,741)         22,882
Provision/(Benefit) for Income Taxes..........................       16,976             (3,961)         13,015
                                                                    -------             ------         -------
  Income/(Loss) before Cumulative Effect of Accounting
     Changes..................................................       25,647            (15,780)          9,867
                                                                    -------             ------         -------
Pro Forma Weighted Average Shares Outstanding(4)..............       23,242              4,705          30,563
Earnings/(Loss) Per Share before Cumulative Effect of
  Accounting Changes..........................................        $1.10             $(3.35)          $0.32
</TABLE>
 
 See "NOTES TO PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS (UNAUDITED)."
 
                                       12
<PAGE>   14
 
                      NORTH FORK BANCORPORATION, INC. AND
                            NORTH SIDE SAVINGS BANK
 
                     NOTES TO PRO FORMA CONDENSED COMBINED
                        FINANCIAL STATEMENTS (UNAUDITED)
 
   
(1) The pro forma financial information presented has been prepared in
    conformity with generally accepted accounting principles and prevailing
    practices within the financial services industry. Under generally accepted
    accounting principals ("GAAP") the assets and liabilities of North Side will
    be combined with those of North Fork at book value. In addition, the
    statements of income for North Side will be combined with North Fork as of
    the earliest period presented. Certain reclassifications have been included
    in the pro forma financial statements to conform to North Fork's
    presentation. North Fork utilizes a fiscal year which ends on December 31
    for reporting purposes, whereas North Side uses a fiscal year which ends on
    September 30 for such purposes. The unaudited condensed combined statements
    of income for 1995, 1994, and 1993 combine North Fork and North Side at
    their respective year-end periods. The unaudited condensed combined
    statement of income for the nine-month periods ended September 30, 1996 and
    1995 include North Side for the nine months then ended to conform with the
    reporting periods of North Fork. Summary unaudited operating results for
    North Side in the three-months ended December 31, 1995 and 1994, have not
    been included in the unaudited pro forma condensed combined financial
    statements and are presented in the following table.
    
 
   
<TABLE>
<CAPTION>
                                                                   THREE MONTHS ENDED
                                                                      DECEMBER 31,
                                                                   -------------------
                                                                    1995        1994
                                                                   -------     -------
                                                                       (UNAUDITED)
        <S>                                                        <C>         <C>
        Interest Income........................................    $27,600     $25,234
        Interest Expense.......................................     15,105      12,366
        Net interest income....................................     12,495      12,868
        Net income.............................................      5,834       3,594
        Earnings per share.....................................    $  1.22     $   .75
</TABLE>
    
 
   
(2) Pro forma adjustments to common stock and additional paid-in capital, at
    September 30, 1996, reflect the Merger accounted for as a
    pooling-of-interests, through: the exchange of 7,177,350 shares of Common
    Stock at September 30, 1996 (using the Exchange Ratio of 1.556) for
    4,612,693 actual outstanding shares of North Side (which excludes 241,000
    shares of North Side Common Stock held by North Fork at an average per share
    cost of $35.21 as of such date, which are assumed to be retired at cost for
    combining purposes).
    
 
   
(3) Pro forma adjustments to common stock, additional paid-in-capital and
    securities available-for-sale reflect the reissuance of 600,000 shares of
    Common Stock held in treasury by North Fork, with an average cost basis of
    $24.45, at $30.87 per share (which represents the estimated net proceeds per
    share of Common Stock in the offering based on an offering price of $32.38).
    See "MARKET PRICES AND DIVIDEND INFORMATION." The transaction proceeds are
    assumed to be reinvested in securities available-for-sale.
    
 
   
(4) The pro forma weighted average shares outstanding for nine months ended
    September 30, 1996, and for each of the combined three-year periods,
    reflects the Exchange Ratio of 1.556 shares of Common Stock for each share
    of North Side Common Stock.
    
 
                                       13
<PAGE>   15
 
   
(5) The pro forma condensed combined balance sheet reflects a nonrecurring
    merger and restructuring charge of approximately $16.7 million, net of
    taxes, which will be recognized upon consummation of the transaction. Such
    charge will reduce earnings per share for the period in which such charge is
    recognized by approximately $.51 per share (based on pro forma weighted
    average shares outstanding of 32,540,469 on September 30, 1996). A summary
    of the estimated merger and restructuring charges follows:
    
 
   
<TABLE>
<CAPTION>
                               TYPE OF COST
                                                                       EXPECTED RANGE
                                                                          OF COSTS
        -----------------------------------------------------------  -------------------
                                                                         (DOLLARS IN
                                                                          MILLIONS)
        <S>                                                          <C>     <C>   <C>
        Merger Expense.............................................  $ 4.0     to  $ 5.0
        Restructuring Charge:
        Severance and Other Employee Expense.......................    6.0     to    8.0
        Facility and System Costs..................................    5.0     to    6.0
        Credit Cost and Other......................................    2.0     to    3.0
                                                                     -------------------
        Total pre-tax Merger and Restructuring Charge..............   17.0     to   22.0
        Less: Tax Effect...........................................    3.9     to    5.3
                                                                     -------------------
        Total after-tax Merger and Restructuring Charge............  $13.1     to  $16.7
                                                                     ===================
</TABLE>
    
 
   
    The effect of the proposed charge has been reflected in the pro forma
    condensed combined balance sheet as of September 30, 1996; however, since
    this charge is nonrecurring, it has not been reflected in the pro forma
    combined statements of income. Although no assurance can be given, North
    Fork expects that cost savings will be achieved at an annual rate of $8.0 to
    $11.0 million, on a pre-tax basis, by the end of the first quarter of 1997
    as a result of steps to be taken to integrate their operations and to
    achieve efficiencies in certain combined lines of business. These
    anticipated merger cost savings were determined based upon preliminary
    estimates provided by the management of both North Fork and North Side.
    Refinements to the foregoing estimates may occur as the merger and
    integration task force formed by North Fork and North Side complete their
    work. The pro forma financial information does not give effect to these
    expected cost savings, nor does it include any estimates of revenue
    enhancements that could be realized with the Merger. See "THE
    MERGER -- Operations Following the Merger."
    
 
(6) The pro forma condensed combined balance sheet reflects the elimination of
    the unearned portion of North Side's incentive compensation plan.
 
   
(7) In March 1996, North Fork completed its purchases of the domestic commercial
    banking business of Extebank and the ten Long Island banking branches of
    First Nationwide Bank. As a result of these acquisitions, North Fork added
    approximately $200 million in net loans and $920 million in deposit
    liabilities. The intangibles created in the aforementioned transactions
    aggregated approximately $60 million. The results of operations from these
    purchases are included in the historical statements of operations of North
    Fork for all periods subsequent to the respective acquisition dates. The net
    income and earnings per share assuming these acquisitions occurred on
    January 1, 1995 would not be materially different from the amounts reflected
    herein. Reference is made to North Fork's Current Report on Form 8-K dated
    March 15, 1996 and Form 10-Q for the Quarter ended September 30, 1996,
    previously filed with the SEC and incorporated by reference in this
    Prospectus that contain additional information regarding these transactions.
    
 
   
(8) North Fork's net income and pro forma net income for the nine months ended
    September 30, 1996, excluding the nonrecurring SAIF recapitalization charge,
    would have been approximately $49.8 million, or $2.01 per share, and $63.4
    million, or $1.95 per share, respectively.
    
 
   
(9) North Fork is currently reviewing the investment securities portfolios of
    North Side to determine the classification of such securities as either
    available-for-sale or held-to-maturity in connection with North Fork's
    existing interest-rate risk position. As a result of this review, certain
    reclassifications of North Side's investment securities may result. No
    adjustments have been made to either the available-for-sale or the
    held-to-maturity portfolios in the accompanying pro forma combined balance
    sheet to reflect any
    
 
                                       14
<PAGE>   16
 
    such reclassification as management has not made a final determination with
    respect to such matters. Any such reclassification will be accounted for in
    accordance with Statement of Financial Accounting Standards No. 115,
    "Accounting for Certain Investments in Debt and Equity Securities", which
    requires that securities transferred from held-to-maturity to
    available-for-sale be transferred at fair value with any unrealized gain or
    loss, net of taxes, at the date of transfer recognized as a separate
    component of stockholders' equity.
 
                                       15
<PAGE>   17
 
                                USE OF PROCEEDS
 
   
     North Fork will use the net proceeds from the sale of the Common Stock
offered hereby (which is estimated to be $18,500,000, based on an assumed
offering price of $32.38 per share) for general corporate purposes, which may
include investments in, or extensions of credit to, its subsidiaries. Pending
such use, the net proceeds may be temporarily invested in equity securities and
short-term income-producing securities. The precise amounts and timing of the
application of proceeds will depend upon the funding requirements of North Fork
and its subsidiaries and the availability of other funds.
    
 
                     MARKET PRICES AND DIVIDEND INFORMATION
 
     The Common Stock is listed on the NYSE under the symbol "NFB". The
following table sets forth, for the calendar periods indicated, the high and low
sale prices per share for the Common Stock as reported on the NYSE and the
quarterly cash dividends declared by North Fork, for the periods indicated.
 
   
<TABLE>
<CAPTION>
                                                               HIGH       LOW       DIVIDENDS
                                                              ------     ------     ---------
    <S>                                                       <C>        <C>        <C>
    1994
      Quarter ended March 31................................  $15.13     $12.75       $.075
      Quarter ended June 30.................................   15.88      13.25        .075
      Quarter ended September 30............................   16.63      13.50        .100
      Quarter ended December 31.............................   16.00      13.50        .100
    1995
      Quarter ended March 31................................  $16.50     $13.63       $.125
      Quarter ended June 30.................................   18.38      16.00        .125
      Quarter ended September 30............................   20.75      17.75        .150
      Quarter ended December 31.............................   25.25      20.75        .150
    1996
      Quarter ended March 31................................  $25.88     $23.25       $.200
      Quarter ended June 30.................................   26.13      22.88        .200
      Quarter ended September 30, 1996......................   32.00      26.13        .200
      Fourth Quarter (through November 20, 1996)............   33.75      30.88          --
</TABLE>
    
 
     A recently reported sale price of the Common Stock is set forth on the
cover page of this Prospectus.
 
                                       16
<PAGE>   18
 
                                 CAPITALIZATION
 
   
     The following table sets forth the consolidated capitalization of North
Fork at September 30, 1996, and as adjusted to give effect to this offering and
the Merger, based on an assumed offering price of $32.38 per share and the other
assumptions set forth in the notes to the "PRO FORMA CONDENSED COMBINED
FINANCIAL STATEMENTS (UNAUDITED)." This table is based on, and is qualified in
its entirety by, the historical consolidated financial statements of North Fork
and North Side, including the related notes thereto, which are included in
documents incorporated by reference herein, and should be read in conjunction
therewith.
    
 
   
<TABLE>
<CAPTION>
                                                                                  AS ADJUSTED
                                                                 HISTORICAL     FOR THE OFFERING
                                                                 NORTH FORK      AND THE MERGER
                                                                 ----------     ----------------
    <S>                                                          <C>            <C>
                                                                     (DOLLARS IN THOUSANDS)
    Senior Note Payable........................................   $ 25,000          $ 25,000
    Long-term Advances.........................................     10,000           170,000
                                                                 ----------     ----------------
              Total Long Term Borrowings.......................     35,000           195,000
                                                                  ========       ===========
    Shareholders' equity:
      Preferred stock, $1.00 par value; authorized 10,000,000
         shares, none issued...................................         --                --
      Common stock, $2.50 par value, authorized 50,000,000
         shares; issued 25,048,374 shares (32,225,724 as
         adjusted).............................................     62,621            80,564
    Additional paid in capital.................................    105,198           175,387
    Retained earnings..........................................    175,001           195,177
    Unrealized Losses on Securities
      Available-for-Sale, net of taxes.........................     (5,333)           (9,065)
    Deferred Compensation......................................     (1,702)           (1,702)
    Treasury Stock at cost; 904,622 shares
      (304,622 shares as adjusted).............................    (22,120)           (7,448)
                                                                 ----------     ----------------
              Total Stockholders' Equity.......................   $313,665          $432,913
                                                                  ========       ===========
</TABLE>
    
 
For additional information relating to the pro forma adjustments contained
herein. See the notes accompanying the "PRO FORMA CONDENSED COMBINED FINANCIAL
STATEMENTS (UNAUDITED)."
 
                                  UNDERWRITING
 
     Subject to the terms and conditions of an Underwriting Agreement among
North Fork and Keefe, Bruyette & Woods, Inc. (the "Underwriter" or "KBW"), the
Underwriter has agreed to purchase from North Fork all of the shares of Common
Stock offered hereby.
 
     Pursuant to the terms of the Underwriting Agreement, the Underwriter will
acquire the shares from North Fork at the public offering price set forth on the
cover page hereof less the underwriting discounts and commissions set forth on
the cover page. The Underwriter has advised the Company that it proposes
initially to offer the shares to the public at the initial price set forth on
the cover page hereof, and to certain dealers at the public offering price less
a dealers' concession not in excess of $          per share. The Underwriter may
allow, and such dealers may, reallow, a discount not in excess of $          per
share to other dealers. After the initial public offering, the public offering
price and other terms may be varied by the Underwriter.
 
     The nature of the obligations of the Underwriter is such that if any of the
shares offered hereby are purchased, all of such shares must be purchased.
 
     North Fork has agreed to indemnify the Underwriter against certain
liabilities, including liabilities under the Securities Act of 1933, or to
contribute to payments the Underwriter may be required to make in respect
thereof.
 
                                       17
<PAGE>   19
 
   
     In connection with the Merger, KBW rendered an opinion to the North Fork
Board dated October 4, 1996 that, as of the date of such opinion, the
consideration to be paid by North Fork to North Side's shareholders pursuant to
the Merger Agreement was fair, from a financial point of view, to North Fork's
shareholders. Pursuant to the terms of KBW's engagement, North Fork has agreed
to pay a financial advisory fee to KBW for its services in connection with the
Merger. Specifically, North Fork has agreed to pay KBW (a) an initial fee of
$25,000 following execution of the engagement letter, (b) a fee of $100,000 upon
the mailing of the Joint Proxy Statement/Prospectus, and (c) a contingent fee of
$125,000 upon the closing of the Merger. North Fork has also agreed to reimburse
KBW for its reasonable out-of-pocket expenses, including the fees and expenses
of legal counsel and any other advisor retained by KBW. North Fork has also
agreed to indemnify KBW, its affiliates, and their respective partners,
directors, officers, agents, consultants, employees and controlling persons
against certain liabilities, including liabilities under the Federal securities
laws.
    
 
                                 LEGAL MATTERS
 
   
     The validity of the shares of North Fork Common Stock being offered hereby,
as well as certain other matters, will be passed upon for North Fork by Skadden,
Arps, Slate, Meagher, & Flom LLP. Certain legal matters will be passed upon for
the Underwriter by Brown & Wood LLP.
    
 
                                    EXPERTS
 
     The consolidated financial statements of North Fork Bancorporation, Inc.
and subsidiaries as of December 31, 1995 and 1994 and for each of the years in
the three year period ended December 31, 1995, included in North Fork's 1995
Form 10-K incorporated by reference into this Prospectus, have been incorporated
by reference herein and in the Registration Statement of which this Prospectus
is a part in reliance upon the report of KPMG Peat Marwick LLP, independent
auditors, included in North Fork's 1995 Form 10-K and incorporated by reference
herein, and upon the authority of said firm as experts in accounting and
auditing.
 
     The consolidated financial statements of North Side Savings Bank and
subsidiaries as of September 30, 1995 and 1994 and for each of the years in the
three-year period ended September 30, 1995, included in North Fork's Current
Report on Form 8-K dated September 12, 1996 incorporated by reference into this
Prospectus have been incorporated by reference herein and in the Registration
Statement of which the Prospectus is a part in reliance upon the report of KPMG
Peat Marwick LLP, independent auditors, included in North Fork's Current Report
on Form 8-K dated September 12, 1996 and incorporated by reference herein, and
upon the authority of said firm as experts in accounting and auditing.
 
                                       18
<PAGE>   20
 
- ------------------------------------------------------
- ------------------------------------------------------
 
  NO DEALER, SALESMAN OR ANY OTHER PERSON HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATIONS OTHER THAN THOSE CONTAINED IN THIS
PROSPECTUS IN CONNECTION WITH THE OFFERING DESCRIBED HEREIN, AND, IF GIVEN OR
MADE, SUCH INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN
AUTHORIZED BY NORTH FORK OR THE UNDERWRITER. THIS PROSPECTUS DOES NOT CONSTITUTE
AN OFFER TO SELL OR A SOLICITATION OF AN OFFER TO BUY ANY SECURITIES OTHER THAN
THOSE SPECIFICALLY OFFERED HEREBY OR OF ANY SECURITIES OFFERED HEREBY IN ANY
JURISDICTION TO ANY PERSON TO WHOM IT IS UNLAWFUL TO MAKE AN OFFER OR
SOLICITATION IN SUCH JURISDICTION. NEITHER THE DELIVERY OF THIS PROSPECTUS NOR
ANY SALES MADE HEREUNDER SHALL, UNDER ANY CIRCUMSTANCES, CREATE AN IMPLICATION
THAT THERE HAS BEEN NO CHANGE IN THE AFFAIRS OF NORTH FORK SINCE THE DATE HEREOF
OR THAT THE INFORMATION CONTAINED HEREIN IS CORRECT AS OF ANY TIME SUBSEQUENT TO
ITS DATE.
 
                               ------------------
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                        PAGE
                                        ----
<S>                                     <C>
Available Information.................    2
Incorporation of Certain Documents by
  Reference...........................    3
North Fork............................    4
Selected Historical Financial
  Information.........................    5
The Merger............................    7
Pro Forma Condensed Combined Financial
  Statements (Unaudited)..............    9
Use of Proceeds.......................   16
Market Prices and Dividend
  Information.........................   16
Capitalization........................   17
Underwriting..........................   17
Legal Matters.........................   18
Experts...............................   18
</TABLE>
    
 
- ------------------------------------------------------
- ------------------------------------------------------
 
- ------------------------------------------------------
- ------------------------------------------------------
 
   
                            NOVEMBER          , 1996
    
 
   
                                 600,000 SHARES
    
 
                                   NORTH FORK
                              BANCORPORATION, INC.
                                  COMMON STOCK
                            ------------------------
 
                                   PROSPECTUS
                            ------------------------
   
                         KEEFE, BRUYETTE & WOODS, INC.
    
             ------------------------------------------------------
             ------------------------------------------------------
<PAGE>   21
 
               PART II -- INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
     The estimated expenses in connection with the issuance and distribution of
the securities being registered, other than underwriting discounts and
commissions, are set forth in the following table.
 
   
<TABLE>
    <S>                                                                         <C>
    Securities and Exchange Commission fee..................................    $  6,336
    Printing and engraving expenses.........................................      35,000
    Accountants' fees and expenses..........................................      50,000
    Legal fees and expenses.................................................      95,000
    Blue Sky fees and expenses..............................................       2,500
    Transfer Agent fees and expenses........................................       2,500
    Miscellaneous...........................................................      50,000
                                                                                ---------
              Total.........................................................    $241,336
                                                                                =========
</TABLE>
    
 
ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
     Section 145 of the Delaware General Corporate Law (the "DGCL") generally
provides that a corporation may indemnify directors, officers, employees or
agents against liabilities they may incur in such capacities provided certain
standards are met, including good faith and the reasonable belief that the
particular action was in, or not opposed to, the best interests of the
corporation.
 
     Subsection (a) of Section 145 of the DGCL empowers a corporation to
indemnify any person who was or is a party or is threatened to be made a party
to any threatened, pending or completed action, suit or proceeding, whether
civil, criminal, administrative or investigative (other than an action by or in
the right of the corporation), by reason of the fact that he is or was a
director, officer, employee or agent of the corporation or is or was serving at
the request of the corporation as a director, officer, employee or agent of
another corporation or enterprise, against expenses (including attorneys' fees),
judgments, fines and amounts paid in settlement actually and reasonably incurred
by him in connection with such action, suit or proceeding if he acted in good
faith and in a manner he reasonably believed to be in or not opposed to the best
interests of the corporation and, with respect to any criminal action or
proceeding, had no reasonable cause to believe that his conduct was unlawful.
 
     Subsection (b) of Section 145 of the DGCL empowers a corporation to
indemnify any person who was or is a party or is threatened to be made a party
to any threatened, pending or completed action or suit by or in the right of the
corporation to procure a judgment in its favor, by reason of the fact that such
person acted in any of the capacities set forth above, against expenses
(including attorneys' fees) actually and reasonably incurred by him in
connection with the defense or settlement of such action or suit if he acted
under standards similar to those set forth above, except that no indemnification
may be made in respect of any claim, issue or matter as to which such person
shall have been adjudged to be liable to the corporation, unless and only to the
extent that the Delaware Court of Chancery or the court in which such action or
suit was brought shall determine that, despite the adjudication of liability but
in view of all the circumstances of the case, such person is fairly and
reasonably entitled to be indemnified for such expenses which the court shall
deem proper.
 
     Section 145 of the DGCL further provides that, among other things, to the
extent that a director or officer of a corporation has been successful in the
defense of any action, suit or proceeding referred to in Subsections (a) and (b)
of Section 145, or in the defense of any claim, issue or matter therein, he
shall be indemnified against expenses (including attorneys' fees) actually and
reasonably incurred by him in connection therewith; that indemnification
provided for by Section 145 shall not be deemed exclusive of any other rights to
which the indemnified party may be entitled; and that a corporation is empowered
to purchase and maintain insurance on behalf of a director or officer of the
corporation against any liability asserted against him and incurred by him in
any such capacity, or arising out of his status as such, whether or not the
corporation would have the power to indemnify against such liability under
Section 145.
 
                                      II-1
<PAGE>   22
 
     Indemnification as described above shall be granted in a specific case only
upon a determination that indemnification is proper under the circumstances
using the applicable standard of conduct which is made by (a) a majority of
directors who were not parties to such proceeding, (b) independent legal counsel
in a written opinion if there are no such disinterested directors or if such
disinterested directors so direct, or (c) the shareholders.
 
     Article 8.1 of the By-laws of the Registrant provides that the Registrant
shall indemnify any person who was or is a party or is threatened to be made a
party to any threatened, pending or completed action, suit or proceeding by
reason of the fact that he or she is or was a director or officer of the
Registrant against expenses (including attorneys' fees), judgments, fines and
settlement payments actually and reasonably incurred by him or her to the
fullest extent permitted by the DGCL and any other applicable law, as may be in
effect from time to time.
 
     Article 8.2 of the By-laws of the Registrant provides that the Registrant
may indemnify any person who was or is a party or is threatened to be made a
party to any threatened, pending or completed action, suit or proceeding by
reason of the fact that he or she is or was an employee or agent of the
Registrant or is serving at the request of the Registrant as a director,
officer, employee or agent of another corporation, partnership, joint venture,
trust or other enterprise, against expenses (including attorney's fees),
judgments, fines and amounts paid in settlement actually and reasonably incurred
by him or her to the extent permitted by the DGCL, and any other applicable law
as may be in effect from time to time.
 
     Section 102(b)(7) of the DGCL ("Section 102(b)(7)") permits the certificate
of incorporation of a corporation to provide that a director shall not be
personally liable to the corporation or its stockholders for monetary damages
for breach of his or her fiduciary duty as a director, except for liability (i)
for any breach of the director's duty of loyalty to the corporation or its
stockholders, (ii) for acts or omissions not in good faith or which involve
intentional misconduct or a knowing violation of law, (iii) under Section 174 of
the DGCL (dealing with unlawful dividends or unlawful stock purchases or
redemptions), or (iv) for any transaction from which the director derived an
improper personal benefit.
 
     Article 10 of the Registrant's Certificate of Incorporation provides that,
subject only to the express prohibitions on elimination or limitation of
liability of directors set forth in Section 102(b)(7), as it now exists or may
be hereinafter amended, directors shall not be liable for monetary damages in
excess of $25,000 per occurrence resulting from a breach of their fiduciary
duties.
 
   
     The Registrant maintains a director and officer liability insurance
policies providing for the insurance on behalf of any person who is or was a
director or officer of the Registrant and subsidiary companies against any
liability incurred by him in any such capacity or arising out of his status as
such. The insurer's limit of liability under these policies is $15,000,000 per
occurrence and $15,000,000 in the aggregate for all insured losses per year. The
policies contain various reporting requirements and exclusions.
    
 
     Section 8(k) of the Federal Deposit Insurance Act (the "FDI Act") provides
that the Federal Deposit Insurance Corporation (the "FDIC") may prohibit or
limit, by regulation or order, payments by any insured depository institution or
its holding company for the benefit of directors and officers of the insured
depository institution, or others who are or were "institution-affiliated
parties," as defined under the FDI Act, in order to pay or reimburse such person
for any liability or legal expense sustained with regard to any administrative
or civil enforcement action which results in a final order against the person.
The FDIC recently adopted regulations prohibiting, subject to certain
exceptions, insured depository institutions, their subsidiaries and affiliated
holding companies from indemnifying officers, directors or employees for any
civil money penalty or judgment resulting from an administrative or civil
enforcement action commenced by any federal banking agency, or for that portion
of the costs sustained with regard to such an action that results in a final
order or settlement that is adverse to the director, officer or employee.
 
                                      II-2
<PAGE>   23
 
ITEM 16.  EXHIBITS AND FINANCIAL STATEMENT, SCHEDULES.
 
     (a)  EXHIBITS.
 
   
<TABLE>
<C>   <C>   <S>
  1.1   --  Form of Underwriting Agreement.
  2.1   --  Agreement and Plan of Merger, dated as of July 15, 1996, as amended, by and among
            North Fork Bancorporation, Inc., North Fork Bank and North Side Savings Bank,
            previously filed as an exhibit to North Fork Bancorporation, Inc.'s Current Report
            on Form 8-K dated July 15, 1996.
  4.1   --  Certificate of Incorporation of the Registrant, as amended, previously filed and
            incorporated by reference to North Fork Bancorporation, Inc.'s Registration
            Statement on Form S-3 (File No. 33-42294) filed August 16, 1991.
  4.2   --  By-laws of the Registrant, previously filed and incorporated by reference to North
            Fork Bancorporation, Inc.'s Annual Report on Form 10-K for the year ended December
            31, 1993.
  4.3   --  Rights Agreement, previously filed and incorporated by reference to North Fork
            Bancorporation, Inc.'s Registration Statement on Form 8-A filed March 21, 1989.
  5.1   --  Opinion of Skadden, Arps, Slate, Meagher & Flom LLP.
 23.1   --  Consent of KPMG Peat Marwick LLP, New York, New York.
 23.2   --  Consent of KPMG Peat Marwick LLP, New York, New York.
 23.3   --  Consent of Skadden, Arps, Slate, Meagher & Flom LLP (included in Exhibit 5.1
            hereto).
 24.1   --  Powers of Attorney (see the signature page to this Form S-3 Registration
            Statement).
</TABLE>
    
 
- ---------------
 
   
ITEM 17.  UNDERTAKINGS.
    
 
     (a) Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the registrant pursuant to the foregoing provisions, or otherwise, the
registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the Act
and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the registrant of expenses
incurred or paid by a director, officer or controlling person of the registrants
in the successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.
 
     (b) The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in this
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.
 
                                      II-3
<PAGE>   24
 
     (c) The undersigned registrant hereby undertakes that:
 
          (1) For purposes of determining any liability under the Securities
     Act, the information omitted from the form of prospectus filed as part of
     this Registration Statement in reliance upon Rule 430A and contained in a
     form of prospectus filed by the registrant pursuant to Rule 424(b)(1) or
     (4) or 497(h) under the Securities Act shall be deemed to be part of this
     Registration Statement as of the time it was declared effective.
 
          (2) For the purpose of determining any liability under the Securities
     Act, each post-effective amendment that contains a form of prospectus shall
     be deemed to be a new registration statement relating to the securities
     offered therein, and the offering of such securities at that time shall be
     deemed to be the initial bona fide offering thereof.
 
                                      II-4
<PAGE>   25
 
                                   SIGNATURES
 
   
     Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized in the City of Melville, State of New York on November 22, 1996.
    
 
                                          NORTH FORK BANCORPORATION, INC.
 
   
                                          By: /s/       Daniel M. Healy
    
 
                                            ------------------------------------
                                                      Daniel M. Healy
                                                Executive Vice President and
                                                  Chief Financial Officer
 
   
     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on November 22, 1996.
    
 
     We, the undersigned officers and directors of North Fork Bancorporation,
Inc. hereby severally and individually constitute and appoint Daniel M. Healy,
the true and lawful attorney and agent (with full power of substitution and
resubstitution in each case) of each of us to execute in the name, place and
stead of each of us (individually and in any capacity stated below) any and all
amendments to this Registration Statement of Form S-3 and all instruments
necessary or advisable in connection therewith and to file the same with the
Securities and Exchange Commission, said attorney and agent to have power to act
and to have full power and authority to do and perform in the name and on behalf
of each of the undersigned every act whatsoever necessary or advisable to be
done in the premises as fully and to all intents and purposes as any of the
undersigned might or could do in person and we hereby ratify and confirm our
signatures as they may be signed by our said attorney and agent to any and all
such amendments and instruments.
 
   
<TABLE>
<CAPTION>
                   NAME                                           TITLE
- ------------------------------------------  -------------------------------------------------
<C>                                         <S>
                                            President, Chief Executive Officer and
                    *                       Chairman of the Board
- ------------------------------------------
              John A. Kansas
                                            Executive Vice President and Chief Financial
                    *                       Officer
- ------------------------------------------  (Principal Financial and Accounting Officer)
             Daniel M. Healy
                                            Director and Vice Chairman of the Board
                    *
- ------------------------------------------
               John Bohlsen
                                            Director
                    *
- ------------------------------------------
            Allan C. Dickerson
                                            Director
- ------------------------------------------
             Lloyd A. Gerard
</TABLE>
    
 
                                      II-5
<PAGE>   26
 
   
<TABLE>
<CAPTION>

                   NAME                                           TITLE
- ------------------------------------------  -------------------------------------------------
<C>                                         <S>
                    *                       
- ------------------------------------------  Director
              James F. Reeve

                                            
- ------------------------------------------  Director
            James H. Rich, Jr.

                    *                       
- ------------------------------------------  Director
             George H. Rowson

                                            
- ------------------------------------------  Director
            Kurt R. Schmeller

                                            
- ------------------------------------------  Director
          Raymont W. Terry, Jr.


*By: /s/         Daniel M. Healy
- ------------------------------------------
                (Daniel M. Healy)
                 Attorney-in-fact

</TABLE>
    
 
                                      II-6
<PAGE>   27
 
                                 EXHIBIT INDEX
 
   
<TABLE>
<C>    <C>   <S>
  1.1    --  Form of Underwriting Agreement.
  2.1    --  Agreement and Plan of Merger, dated as of July 15, 1996, as amended, by and among
             North Fork Bancorporation, Inc., North Fork Bank and North Side Savings Bank.,
             previously filed as an exhibit to North Fork Bancorporation, Inc.'s Current Report
             on Form 8-K filed July 25, 1996.
  4.1    --  Certificate of Incorporation of the Registrant, as amended, previously filed and
             incorporated by reference to North Fork Bancorporation, Inc.'s Registration
             Statement on Form S-3 (File No. 33-42294) filed August 16, 1991.
  4.2    --  By-laws of the Registrant, previously filed and incorporated by reference to North
             Fork Bancorporation, Inc.'s Annual Report on form 10-K for the year ended December
             31, 1993.
  4.3    --  Rights Agreement, previously filed and incorporated by reference to North Fork
             Bancorporation, Inc.'s Registration Statement on Form 8-A filed March 21, 1989.
  5.1    --  Opinion of Skadden, Arps, Slate, Meagher & Flom LLP.
 23.1    --  Consent of KPMG Peat Marwick LLP, New York, New York.
 23.2    --  Consent of KPMG Peat Marwick LLP, New York, New York.
 23.3    --  Consent of Skadden, Arps, Slate, Meagher & Flom LLP (included in Exhibit 5.1
             hereto).
 24.1    --  Powers of Attorney (see the signature page to this Form S-3 Registration
             Statement).
</TABLE>
    

<PAGE>   1
                                                                     Exhibit 1.1





                                                      DRAFT OF NOVEMBER 21, 1996




                                 600,000 Shares

                        NORTH FORK BANCORPORATION, INC.

                            (a Delaware corporation)

                                  Common Stock
                          (Par Value $2.50 Per Share)



                             UNDERWRITING AGREEMENT


                                                                          , 1996


Keefe, Bruyette & Woods, Inc.
Two World Trade Center
85th Floor
New York, New York 10048


Dear Sirs:

    North Fork Bancorporation, Inc., a Delaware corporation (the "Company"),
confirms its agreement with Keefe, Bruyette & Woods, Inc., (the "Underwriter")
with respect to the sale by the Company and the purchase by the Underwriter of
600,000 shares of the Company's common stock, par value $2.50 per share (the
"Common Stock").  The aforesaid 600,000 shares of Common Stock are hereinafter
referred to as the "Shares".  As used herein "you" and "your," unless the
context otherwise requires, shall mean Keefe, Bruyette & Woods, Inc.

         Offerings of Shares will be made through you.  The Company will enter
into an agreement (the "Pricing Agreement") providing for the sale of such
Shares (the "Offered Shares") to, and the purchase and offering thereof by,
you.  The Pricing Agreement relating to the Offered Shares shall specify the
number of Offered Shares which you agree to purchase, the price at which the
Offered Shares are to be purchased by you from the Company and the initial
public offering price of the Offered Shares.  The Pricing Agreement, which
shall be substantially in the form of Exhibit A hereto, may take the form of an
exchange of any standard form of written telecommunication between you and the
Company.  The offering of Shares through you will be governed by this
Agreement, as supplemented by the Pricing Agreement, and this Agreement and

<PAGE>   2

the Pricing Agreement shall inure to the benefit of and be binding upon the
Company and you.

         The Company has filed with the Securities and Exchange Commission (the
"Commission") a registration statement on Form S-3 (No. 333-11985), including a
related preliminary prospectus for the registration of the Shares under the
Securities Act of 1933 (the "Securities Act"), and has prepared and filed such
amendments thereto, if any, and such amended preliminary prospectuses, if any,
as may have been required to the date hereof, and will file such additional
amendments thereto and such amended prospectuses as may hereafter be required.
If the registration statement has been declared effective under the Securities
Act by the Commission, the Company will promptly file with the Commission the
information omitted from the registration statement pursuant to Rule 430A(a) of
the rules and regulations of the Commission under the Securities Act (the
"Securities Act Regulations") as part of a prospectus pursuant to Rule 424(b)
of the Securities Act Regulations or as part of a post-effective amendment to
the registration statement (including an amended prospectus).  The registration
statement as amended at the time it became or becomes effective (including the
documents incorporated by reference therein, and if the Company has omitted
information from the registration statement pursuant to Rule 430A(a) of the
Securities Act Regulations, the information deemed to be a part of the
registration statement at the time it became effective pursuant to Rule 430A(b)
of the Securities Act Regulations), as the case may be, is hereinafter called
the "Registration Statement," except that, if the Company files a
post-effective amendment to such registration statement which becomes effective
prior to the Closing Time (as defined below), "Registration Statement" shall
refer to such registration statement as so amended.  The prospectus on file
with the Commission at the time the Registration Statement became or becomes
effective (including the documents incorporated by reference therein) is
hereinafter called the "Prospectus," except that, if any revised prospectus
shall be provided to you by the Company for use in connection with the offering
of the Shares which differs from the Prospectus on file at the Commission at
the time the Registration Statement becomes effective (whether or not such
revised prospectus is required to be filed with the Commission by the Company
pursuant to Rule 424(b) of the Securities Act Regulations), the term
"Prospectus" shall refer to such revised prospectus from and after the time it
is first provided to you for such use.

         The Company has entered into an Agreement and Plan of Merger, as
amended, dated as of July 15, 1996 (the "Merger Agreement"), by and among the
Company, North Fork Bank, a wholly owned subsidiary of the Company (the
"Bank"), and North Side Savings Bank ("North Side").  Pursuant to the Merger
Agreement, subject to the terms and conditions contained therein, North Side
will merge (the "Merger") with and into the Bank, with the Bank surviving the
Merger as a wholly owned subsidiary of the Company.





                                       2
<PAGE>   3
    The Company understands that you propose to make a public offering of the
Shares as soon as you deem advisable after the execution and delivery of this
Agreement upon the terms set forth herein and in the Prospectus.

    SECTION 1.  Representations and Warranties.  The Company represents and
warrants to you as follows:

                 (a)      At the time the Registration Statement became or
         becomes effective, as the case may be, the Registration Statement
         complied or will comply in all material respects with the requirements
         of the Securities Act and the Securities Act Regulations and did not
         or will not, as the case may be, contain an untrue statement of a
         material fact or omit to state a material fact required to be stated
         therein or necessary to make the statements therein not misleading,
         and at the time the Registration Statement became or becomes effective
         (unless the term "Prospectus" refers to a prospectus which has been
         provided to you by the Company for use in connection with the offering
         of the Shares which differs from the Prospectus on file at the
         Commission at the time the Registration Statement becomes effective,
         in which case at the time it is first provided to you for such use),
         as the case may be, at the Closing Time (as defined below), the
         Prospectus did not or will not, as the case may be, contain an untrue
         statement of a material fact or omit to state a material fact
         necessary in order to make the statements therein, in the light of the
         circumstances under which they were made, not misleading; provided,
         however, that the representations and warranties in this subsection
         shall not apply to statements in or omissions from the Registration
         Statement or the Prospectus made in reliance upon and in conformity
         with information furnished to the Company herein or otherwise in
         writing by you expressly for use in the Registration Statement or the
         Prospectus.

                 (b)      The documents (including any amendments thereto)
         incorporated by reference into the Prospectus, at the time they were
         or hereafter are filed with the Commission, complied and will comply
         in all material respects with the requirements of the Securities
         Exchange Act of 1934 (the "Exchange Act") and the rules and
         regulations of the Commission under the Exchange Act (the "Exchange
         Act Regulations"), and, when read together and with the other
         information included in or incorporated by reference in the
         Prospectus, at the time the Registration Statement became or becomes
         effective, as the case may be, at the Closing Time did not or will not
         contain an untrue statement of a material fact or omit to state a
         material fact required to be stated therein or necessary to make the
         statements therein, in the light of the circumstances under which they
         were made, not misleading; and there are no contracts or documents of
         the Company or of any of the





                                       3
<PAGE>   4
         subsidiaries of the Company (each a "Subsidiary" and collectively the
         "Subsidiaries") which are required to be filed as exhibits to the
         Registration Statement by the Securities Act or by the Securities Act
         Regulations which have not been so filed or incorporated by reference.

                 (c)      The accountants who certified the financial
         statements and supporting schedules of the Company and its
         consolidated Subsidiaries included or incorporated by reference in the
         Registration Statement are independent public accountants as required
         by the Securities Act and the Securities Act Regulations.

                 (d)      The financial statements of the Company, including
         the notes thereto, and supporting schedules included or incorporated
         by reference in the Prospectus and Registration Statement present
         fairly the financial position of the Company and its consolidated
         Subsidiaries as at the dates indicated and the results of their
         operations for the periods specified and have been prepared in
         conformity with generally accepted accounting principles applied on a
         consistent basis.  The pro forma financial statements of the Company
         and its Subsidiaries and the related notes thereto included and
         incorporated by reference in the Registration Statement and the
         Prospectus present fairly in accordance with generally accepted
         accounting principles the information shown therein, have been
         prepared in accordance with the Commission's rules and guidelines with
         respect to pro forma financial statements and have been properly
         compiled on the bases described therein, and the assumptions used in
         the preparation thereof are reasonable and the adjustments used
         therein are appropriate to give effect to the transactions and
         circumstances referred to therein.

                 (e)      Since the respective dates as of which information is
         given in the Registration Statement and the Prospectus, except as
         otherwise stated therein, (i) there has been no material adverse
         change or event which is reasonably likely to result in a prospective
         material adverse change in the financial condition, earnings or
         business of the Company and its Subsidiaries considered as one
         enterprise, whether or not arising in the ordinary course of business,
         (ii) there have been no material transactions entered into by the
         Company or any of its Subsidiaries other than those in the ordinary
         course of business, and (iii) there has been no dividend or
         distribution of any kind declared, paid or made by the Company on any
         class of its capital stock (other than regular quarterly dividends).

                 (f)      The Company has been duly incorporated and is validly
         existing as a corporation in good standing under the laws of the State
         of Delaware with corporate power and





                                       4
<PAGE>   5
         authority to own, lease and operate its properties and to conduct its
         business as described in the Registration Statement and to enter into
         and perform its obligations under this Agreement and the Pricing
         Agreement; the Company is duly qualified as a foreign corporation to
         transact business and is in good standing in each jurisdiction, if
         any, in which its ownership or leasing of properties or the conduct of
         its business requires such qualification, except where the failure to
         so qualify would not have a material adverse effect or prospective
         material adverse effect on the financial condition, earnings or
         business of the Company and its Subsidiaries considered as one
         enterprise; and the Company is duly registered as bank holding company
         under the Bank Holding Company Act of 1956, as amended.

                 (g)      Each subsidiary of the Company has been duly
         incorporated and is validly existing either as a New York State
         chartered stock bank, or as a corporation in good standing under the
         laws of the jurisdiction of its incorporation and is duly qualified as
         a foreign corporation to transact business and is in good standing in
         each jurisdiction, if any, in which its ownership or leasing of
         properties or the conduct of its business requires such qualification,
         except where the failure to so qualify would not have a material
         adverse effect or prospective material adverse effect on the financial
         condition, earnings or business of the Company and its Subsidiaries
         considered as one enterprise; except as previously disclosed to you in
         writing (which writing shall be deemed to constitute part of this
         representation) all of the issued and outstanding capital stock of
         each Subsidiary has been duly authorized and validly issued and is
         fully paid and non-assessable, and is owned by the Company, directly
         or through another Subsidiary, free and clear of any mortgage, pledge,
         lien, encumbrance or claim whatsoever.

                 (h)      The Company is not aware of any facts or
         circumstances other than the satisfaction of conditions to the
         consummation of the Merger which have occurred or may occur which
         could prevent the consummation of the Merger or which lead the Company
         to believe that the consummation is not reasonably likely to occur.
         There are no material disagreements between the parties to the Merger
         Agreement regarding the terms of the Merger Agreement or the
         interpretation thereof.

                 (i)      The authorized, issued and outstanding capital stock
         of the Company is as set forth in the Prospectus under the caption
         "Capitalization" as of the date specified therein (except for
         subsequent issuances, if any, pursuant to reservations, agreements or
         employee stock option plans); the shares of issued and outstanding
         Common Stock set forth





                                       5
<PAGE>   6
         therein have been duly authorized and validly issued and are fully
         paid, non-assessable and free of preemptive rights; the Common Stock
         conforms to all statements relating thereto contained in the
         Prospectus and the Shares, when issued and delivered in accordance
         with this Agreement, will be duly and validly issued, fully paid and
         non-assessable.

                 (j)      Neither the Company nor any of its Subsidiaries is in
         violation of its articles of incorporation or by laws or in default in
         the performance or observance of any material obligation, agreement,
         covenant or condition contained in any contract, indenture, mortgage,
         loan agreement, note, lease or other instrument to which the Company
         or any of its Subsidiaries is a party or by which it or any of them
         may be bound or to which any of the property or assets of the Company
         or any of its Subsidiaries is subject, the effect of which in the
         aggregate would result in a material adverse change or prospective
         material adverse change in the financial condition, earnings or
         business of the Company and its Subsidiaries considered as one
         enterprise; the execution, delivery and performance of this Agreement,
         the Pricing Agreement and the consummation of the transactions herein
         and therein contemplated and the compliance by the Company with its
         obligations hereunder have been duly authorized by all necessary
         corporate action and will not conflict with or constitute a breach of,
         or default under, or result in the creation or imposition of any lien,
         charge or encumbrance upon any property or assets of the Company or
         any of its Subsidiaries pursuant to, any contract, indenture,
         mortgage, loan agreement, note, lease or other instrument to which the
         Company or any of its Subsidiaries is a party or by which it or any of
         them may be bound, or to which any of the property or assets of the
         Company or any of its Subsidiaries is subject, except as would not
         have a material adverse effect on the Company and its Subsidiaries
         considered as one enterprise; nor will such action result in any
         violation on the part of the Company or any of its Subsidiaries of any
         applicable law, administrative regulation or administrative or court
         decree that would have a material adverse effect on the Company and
         its Subsidiaries considered as one enterprise, or of the provisions of
         the articles of incorporation, bylaws or other corresponding
         organizational documents of the Company or any of its Subsidiaries.

                 (k)      No labor dispute with the employees of the Company or
         any of its Subsidiaries exists or, to the knowledge of the Company, is
         imminent which might be expected to result in a material adverse
         change or prospective material adverse change in the financial
         condition, earnings or business of the Company and its Subsidiaries
         considered as one enterprise.





                                       6
<PAGE>   7
                 (l)      Except as otherwise described in the Registration
         Statement, there is no action, suit or proceeding before or by any
         court or governmental agency or body now pending, or, to the knowledge
         of the Company, threatened against the Company or any of its
         Subsidiaries or North Side or any of its subsidiaries, which is
         required to be disclosed in the Registration Statement or which is
         reasonably anticipated to result in any material adverse change or
         prospective material adverse change in the financial condition,
         earnings or business of the Company and its Subsidiaries considered as
         one enterprise, or is reasonably anticipated to materially and
         adversely affect the properties or assets thereof, taken as a whole,
         or is reasonably anticipated to materially and adversely affect the
         consummation of this Agreement or the Pricing Agreement; all pending
         legal or governmental proceedings to which the Company or any
         subsidiary is a party or of which any of their property is the subject
         which are not described in the Registration Statement, including
         ordinary routine litigation incidental to the business, considered in
         the aggregate, are not reasonably anticipated to have a material
         adverse effect on the Company and its Subsidiaries considered as one
         enterprise.

   
                 (m)      The Company and its Subsidiaries possess adequate
         certificates, authorities or permits issued by the appropriate State
         or Federal regulatory agencies or bodies necessary to conduct any
         material businesses now operated by them, and neither the Company nor
         any of its Subsidiaries has received any notice of proceedings
         relating to the revocation or modification of any such certificate,
         authority or permit, except where, as to such possession or
         proceedings, the failure to have any such certificate, authority or
         permit would not have a material adverse effect or prospective
         material adverse effect on the business, financial condition, earnings
         or business of the Company and its Subsidiaries considered as one
         enterprise.

    
                 (n)      No authorization, approval or consent of any court or
         governmental authority or agency is required to be obtained by the
         Company or its Subsidiaries in connection with the offering, issuance
         or sale of the Shares hereunder or the consummation by the Company of
         any of the other transactions contemplated hereby, except such as may
         be required under the Securities Act, the Securities Act Regulations
         or state securities laws.

                 (o)      This Agreement has been, and prior to the Closing
         Date the Pricing Agreement will have been, duly executed and delivered
         by the Company.

                 (p)      The Company and the Subsidiaries have good and
         marketable title to, or valid and enforceable leasehold





                                       7
<PAGE>   8
   
         estates in, all items of real and personal property which are stated
         in the Registration Statement and Prospectus to be owned or leased by
         them, in each case free and clear of all liens, encumbrances, claims,
         security interests and defects, other than those the aggregate amount
         of which are referred to in the Registration Statement and the
         Prospectus or which would not have a material adverse effect on the
         business, financial condition or earnings of the Company and the
         Subsidiaries considered as one enterprise.
    

                 (q)      The Company and each Subsidiary have filed all
         Federal, state, local and foreign tax returns which are required to be
         filed by any of them or have requested extensions thereof and have
         paid all taxes shown on such returns and all assessments received by
         any of them to the extent that the same have become due, except where
         the failure to file such returns or pay such taxes could not be
         reasonably expected to have a material adverse effect on the Company
         and its Subsidiaries considered as one enterprise.

                 (r)      The Company has not been advised by North Side or
         otherwise been made aware of any change or event having the effects
         described by Section 6.11 of the Merger Agreement.

    SECTION 2.  Sale and Delivery to You; Closing.

                 (a)  On the basis of the representations and warranties herein
         contained and subject to the terms and conditions herein set forth,
         the Company agrees to sell to you and you agree to purchase from the
         Company, at the price per share set forth in the Pricing Agreement,
         the Shares.

                          (i)     If the Company has elected not to rely upon
                 Rule 430A of the Securities Act Regulations, the initial
                 public offering price and the purchase price per share to be
                 paid by you for the Shares have each been determined as set
                 forth in the Pricing Agreement, dated the date hereof, and an
                 amendment to the Registration Statement and the Prospectus
                 will be filed before the Registration Statement becomes
                 effective.

                          (ii)    If the Company has elected to rely upon Rule
                 430A of the Securities Act Regulations, the purchase price per
                 share to be paid by you for the Shares shall be an amount
                 equal to the initial public offering price, less an amount per
                 share to be determined by agreement between you and the
                 Company.  The initial public offering price per share of the
                 Shares shall be a fixed price to be determined by agreement
                 between you and the Company.  The initial public offering
                 price and the purchase price, when so determined, shall be set
                 forth in the Pricing Agreement.  In the event that such prices
                 have not been





                                       8
<PAGE>   9
                 agreed upon and the Pricing Agreement has not been executed
                 and delivered by all parties thereto by the close of business
                 on the fourth business day following the date of this
                 Agreement, this Agreement shall terminate forthwith, without
                 liability of any party to any other party, unless otherwise
                 agreed to by the Company and you.

                 (b)  Payment of the purchase price for, and delivery of
         certificates for, the Shares shall be made at the offices of Brown &
         Wood, One World Trade Center, New York, New York or at such other
         place as shall be agreed upon by you and the Company, at 9:00 a.m.,
         local time in New York on the third business day following the date of
         the Pricing Agreement, or such other time not later than ten business
         days after such date as shall be agreed upon by you and the Company
         (such time and date of payment and delivery being herein called
         "Closing Time").  Payment shall be made to the Company by wire
         transfer or by certified or official bank check or checks drawn in New
         York Clearing House funds or similar next day funds (unless the
         Company requests payment in same day funds, in which case the Company
         shall pay you for any costs associated with settlement in same day
         funds) payable to the order of the Company, against delivery to you in
         New York City of certificates for the Shares to be purchased by it.
         The certificates for the Shares shall be in such denominations and
         registered in such names as you may request in writing at least two
         full business days before Closing Time.  The certificates for the
         Shares will be made available for examination and packaging by you in
         New York City not later than 2:00 p.m., local time in New York City,
         on the last business day prior to Closing Time.

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

                 (a)  If the Company omitted information from the registration 
         statement relating to the Shares at the time it was originally
         declared effective in reliance upon Rule 430A(a) of the Securities Act
         Regulations, the Company shall provide evidence satisfactory to you
         and your counsel that the Prospectus contains such information and has
         been filed with the Commission pursuant to subparagraph (1) or (4) of
         Rule 424(b) or as part of a post-effective amendment to such
         registration statement as originally declared effective which has been
         declared effective by the Commission.  The Company will notify you
         immediately, and confirm the notice in writing, (i) of the
         effectiveness of the Registration Statement and any amendment thereto
         (including any post-effective amendment) and, if Rule 430A of the
         Securities Act Regulations is being relied upon, of the filing of the
         Prospectus pursuant to Rule 430A, (ii) of the receipt of any





                                       9
<PAGE>   10
         comments from the Commission, (iii) of any request by the Commission
         for any amendment to such Registration Statement or any amendment or
         supplement to the Prospectus or for additional information, and (iv)
         of the issuance by the Commission of any stop order suspending the
         effectiveness of the Registration Statement or the initiation of any
         proceedings for that purpose.  The Company will make every reasonable
         effort to prevent the issuance of any stop order and, if any stop
         order is issued, to obtain the lifting thereof at the earliest
         possible moment.

                 (b)      The Company will give you notice of its intention to
         prepare or file any amendment to the Registration Statement relating
         to the Shares (including any post-effective amendment) or any
         amendment or supplement to the Prospectus (including documents deemed
         to be incorporated by reference into the Prospectus and including any
         revised prospectus which the Company proposes for use by you in
         connection with the offering of the Shares which differs from the
         prospectus on file at the Commission at the time the Registration
         Statement becomes effective, whether or not such revised prospectus is
         required to be filed pursuant to Rule 424(b) of the Securities Act
         Regulations), will furnish you with copies of any such amendment or
         supplement a reasonable amount of time prior to such proposed filing
         or use, as the case may be, and will not file any such amendment or
         supplement or use any such prospectus to which you or your counsel
         shall reasonably object.

                 (c)      The Company will deliver to you as many signed copies
         of the Registration Statement as originally filed and of each
         amendment thereto (including exhibits filed therewith or incorporated
         by reference therein and including documents incorporated by reference
         into the Prospectus, but without exhibits to such incorporated
         documents) and such number of conformed copies of the registration
         statement as originally filed and of each amendment thereto (including
         documents incorporated by reference into the Prospectus but without
         exhibits) as you may reasonably request.

                 (d)      The Company will furnish to you, from time to time
         during the period when the Prospectus is required to be delivered
         under the Securities Act or the Exchange Act, such number of copies of
         the Prospectus (as amended or supplemented, if applicable) as you may
         reasonably request for the purposes contemplated by the Securities Act
         or the Exchange Act or the respective applicable rules and regulations
         of the Commission thereunder.

                 (e)      After the Closing Time and for so long as the
         Prospectus is required to be delivered under the Securities Act or the
         Exchange Act, if any event shall occur as a result





                                       10
<PAGE>   11
         of which it is necessary, in the reasonable opinion of your counsel,
         to amend or supplement the Prospectus in order to make the Prospectus
         not misleading in the light of the circumstances existing at the time
         it is delivered to a purchaser, the Company will forthwith amend or
         supplement the Prospectus (in form and substance reasonably
         satisfactory to your counsel) so that, as so amended or supplemented,
         the Prospectus will not contain an untrue statement of a material fact
         or omit to state a material fact necessary in order to make the
         statements therein, in the light of the circumstances existing at the
         time it is delivered to a purchaser, not misleading, and the Company
         will furnish to you a reasonable number of copies of such amendment or
         supplement.

                 (f)      The Company, during the period when the Prospectus is
         required to be delivered under the Securities Act or the Exchange Act,
         will file promptly all documents required to be filed with the
         Commission pursuant to Section 13, 14 or 15 of the Exchange Act
         subsequent to the time the Registration Statement becomes effective.

                 (g)      The Company will use its reasonable efforts, in
         cooperation with you and your counsel, to qualify the Shares for
         offering and sale under the applicable securities laws of such states
         and other jurisdictions of the United States as you may reasonably
         designate provided that no such qualification shall be required in any
         jurisdiction where, as a result thereof, the Company would be subject
         to service of general process or taxation or be required to qualify to
         do business as a foreign corporation where it is not now so qualified.
         The Company will file such statements and reports as may be required
         by the laws of such jurisdiction to continue such qualification in
         effect for as long as may be required for the distribution of the
         Shares.

                 (h)      The Company will make generally available to its
         security holders as soon as practicable, but not later than 90 days
         after the close of the period covered thereby, an earnings statement,
         which need not be audited (in form complying with the provisions of
         Rule 158 of the Securities Act Regulations) covering a twelve-month
         period beginning not later than the first day of the Company's fiscal
         quarter next following the "effective date" (as defined in said Rule
         158) of the Registration Statement.

                 (i)      The Company will use the net proceeds received by it
         from the sale of the Shares in the manner specified in the Prospectus
         under "Use of Proceeds."

                 (j)      If, at the time that the Registration Statement
         becomes effective, any information shall have been omitted therefrom
         in reliance upon Rule 430A of the Securities Act





                                       11
<PAGE>   12
         Regulations, then immediately following the execution of the Pricing
         Agreement, the Company will prepare, and file or transmit for filing
         with the Commission in accordance with such Rule 430A and Rule 424(b)
         of the Securities Act Regulations, copies of the Prospectus, or, if
         required by such Rule 430A, a post-effective amendment to the
         Registration Statement (including an amended Prospectus), containing
         all information so omitted.

                 (k)      During a period of 90 days from the date hereof, the
         Company will not, without your prior written consent, directly or
         indirectly, sell, offer to sell, grant any option for the sale of, or
         otherwise dispose of, any securities that are of the same or a similar
         class or series as the Shares (except for Common Stock or options
         issued pursuant to reservations, agreements, including, without
         limitation, the Merger Agreement, employee benefit plans, stock option
         plans or dividend reinvestment and stock purchase plans).

    SECTION 4.  Payment of Expenses.  The Company will pay all expenses
incident to the performance of its obligations under this Agreement, including
(i) the printing and filing of the Registration Statement (including exhibits)
as originally filed and of each amendment thereto (including exhibits), (ii)
the preparation, issuance and delivery of the certificates for the Shares to
you, (iii) the fees and disbursements of the Company's counsel and accountants,
(iv) the qualification of the Shares under state securities and "blue sky" laws
in accordance with the provisions of Section 3(g) hereof, including filing fees
and reasonable fees and disbursements of your counsel in connection therewith
and in connection with the preparation of the Blue Sky Survey, (v) the delivery
to you of copies of the Registration Statement as originally filed (including
exhibits) and of each amendment thereto, of the preliminary prospectuses, and
of the Prospectus and any amendments or supplements thereto (including
exhibits), (vi) the fees, if any, of the New York Stock Exchange ("NYSE")
relating to the listing of the Shares on the NYSE and (viii) the examination
fee of the National Association of Securities Dealers, Inc. in connection with
its review of the arrangements, terms and conditions of the offering of the
Shares.  You shall pay all expenses incident to the performance of your
obligations under this Agreement, including without limitation, fees of your
counsel, except as set forth in (iv) above.

    If this Agreement is terminated by you because the Closing conditions set
forth in Section 5 have not been satisfied (unless the failure to perform any
condition set forth in Section 5 is due to the default or omission of you or
your counsel), or Section 9(a)(i), then the Company shall reimburse you for all
of your documented reasonable out-of-pocket expenses, including the reasonable
fees and disbursements of your counsel.





                                       12
<PAGE>   13
         SECTION 5.  Conditions of Your Obligations.  Your obligations 
hereunder are subject to the accuracy of the representations and warranties of
the Company herein contained at and as of the date hereof and the Closing Time,
to the performance by the Company of its obligations hereunder, and to the
following further conditions:

                 (a)      The Registration Statement, including any
         post-effective amendments required pursuant to Rule 430A(a), shall
         have become effective not later than 5:30 p.m., local time in New York
         City, on the date hereof or, with your consent, at a later time and
         date, not later, however, than 5:30 p.m., local time in New York City,
         on the first business day following the date hereof, or at such later
         time and date as you may approve; if the Prospectus or any amendment
         or supplement thereto is required to be filed pursuant to Rule 424(b)
         of the Securities Act Regulations, the prospectus and any such
         amendment or supplement shall be filed in the manner and within the
         time period specified by Rule 424(b) of the Securities Act
         Regulations; and at Closing Time no stop order suspending the
         effectiveness of the Registration Statement shall have been issued
         under the Securities Act or proceedings therefor initiated or
         threatened by the Commission; if the Company has elected to rely upon
         Rule 430A of the Securities Act Regulations, the price of the Shares
         and any price-related information previously omitted from the
         effective Registration Statement pursuant to such Rule 430A shall have
         been transmitted to the Commission for filing pursuant to Rule 424(b)
         of the Securities Act Regulations within the prescribed time period,
         and prior to Closing Time the Company shall have provided evidence
         satisfactory to you of such timely filing, or a post-effective
         amendment providing such information shall have been promptly filed
         and declared effective in accordance with the requirements of Rule
         430A of the Securities Act Regulations; and there shall not have come
         to your attention any facts that would cause you to believe that the
         Prospectus at the time it was required to be delivered to a purchaser
         of the Shares, contained an untrue statement of a material fact or
         omitted to state a material fact necessary in order to make the
         statements therein, in light of the circumstances existing at such
         time, not misleading.

                 (b)      At Closing Time you shall have received:

                 (1)      The favorable opinion, dated the Closing Time, of
         Skadden, Arps, Slate, Meagher & Flom LLP, special counsel for the
         Company, in form and substance set forth in Annex A to this Agreement.

                 (2)      The favorable opinion, dated as of the Closing Time,
         of Brown & Wood, your counsel, to the effect that:





                                       13
<PAGE>   14
                          (i)  This Agreement and the Pricing Agreement have
                 each been duly authorized, executed, and delivered by or on
                 behalf of the Company;

                          (ii)  The Registration Statement is effective under
                 the Securities Act and, to such counsel's knowledge, no stop
                 order suspending the effectiveness of the Registration
                 Statement has been issued under the Securities Act or
                 proceedings therefor initiated or threatened by the
                 Commission;

                          (iii)  At the time the Registration Statement became
                 effective, the Registration Statement (other than the
                 financial statements, notes thereto, supporting schedules and
                 other financial and statistical data included or incorporated
                 by reference therein, as to which no opinion need be rendered)
                 complied as to form in all material respects with the
                 requirements of the Securities Act and the Securities Act
                 Regulations; and

                          (iv)  The Shares conform in all material respects to
                 the description thereof set forth in the Prospectus under the
                 caption "Description of Capital Stock".

                 (3)  In giving their opinions required by subsections (b)(1)
and (b)(2) of this Section, Skadden, Arps, Slate Meagher & Flom LLP and Brown &
Wood shall additionally state that in connection with the preparation of the
Registration Statement and the Prospectus, they participated in conferences
with officers and other representatives of the Company, counsel for the
Company, representatives of the independent certified public accountants for
the Company, representatives of the Underwriter and representatives of their
counsel, at which conferences the contents of the Registration Statement and
Prospectus and related matters were discussed, and, although such counsel has
not independently verified and is not passing upon and assumes no
responsibility for the accuracy, completeness or fairness of the statements
contained in the Registration Statement and Prospectus, except as set forth in
such counsel's respective opinion, and has made no independent verification or
check thereof, nothing has have come to their attention that would cause them
to believe that the Registration Statement (other than the financial
statements, notes thereto, supporting schedules and other financial and
statistical information and data included or incorporated by reference therein
or omitted therefrom, as to which no view need be expressed), at the time it
became effective, or if an amendment to the Registration Statement has been
filed by the Company with the Commission subsequent to the effectiveness of the
Registration Statement, then at the time of the most recent such filing,
contained an untrue statement of a material fact or omitted to state a material
fact required to be stated therein or necessary to make the statements therein
not misleading or that the Prospectus





                                       14
<PAGE>   15
(other than the financial statements, notes thereto, supporting schedules and
other financial and statistical information and data included or incorporated
by reference therein or omitted therefrom, as to which no view need be
expressed), as amended or supplemented at the date of the Pricing Agreement and
at Closing Time, included or includes an untrue statement of a material fact or
omitted or omits to state a material fact necessary in order to make the
statements therein, in the light of the circumstances under which they were
made, not misleading.  Skadden, Arps, Slate, Meagher & Flom LLP shall further
state that to such counsel's knowledge, (A) there are no contracts, indentures,
mortgages, loan agreements, notes, leases or other instruments required to be
described or referred to in the Registration Statement or to be filed as
exhibits thereto other than described or referred to therein or filed or
incorporated by reference as exhibits thereto; and (B) the descriptions thereof
or references thereto are correct in all material respect.

         (c)     At Closing Time, there shall not have been, since the date
hereof or since the respective dates as of which information is given in the
Registration Statement and the Prospectus, any material adverse change or event
which is reasonably likely to result in any prospective material adverse change
in the financial condition, earnings or business of the Company and its
Subsidiaries considered as one enterprise, whether or not arising in the
ordinary course of business, and you shall have received a certificate of the
Chief Executive Officer and of the Chief Financial Officer of the Company,
dated as of Closing Time, to the effect that (i) there has been no such
material adverse change, (ii) the representations and warranties in Section 1
are true and correct with the same force and effect as though expressly made at
and as of Closing Time, (iii) the Company has complied with all agreements and
satisfied all conditions on its part to be performed or satisfied at or prior
to Closing Time, and (iv) no stop order suspending the effectiveness of the
Registration Statement has been issued and no proceedings for that purpose have
been initiated or threatened by the Commission.

         (d)     There shall not have been any change after the date of this
Agreement in the articles of incorporation or by-laws of the Company adversely
affecting the rights of the holders of the Shares.

         (e)     At the time of the execution of this Agreement, you shall have
received from KPMG Peat Marwick LLP a letter dated such date, in form and
substance satisfactory to you, to the effect that (i) they are independent
public accountants with respect to the Company and its Subsidiaries within the
meaning of the Securities Act and the Securities Act Regulations; (ii) it is
their opinion that the financial statements included or incorporated by
reference in the Registration Statement and covered by their opinion or
opinions therein comply as to form in all material respects with the





                                       15
<PAGE>   16
applicable accounting requirements of the Securities Act and the Securities Act
Regulations; (iii) based upon limited procedures set forth in detail in such
letter, nothing has come to their attention which causes them to believe that
(A) the unaudited consolidated financial statements of the Company and the
Subsidiaries included or  incorporated by reference in the Registration
Statement and the Prospectus do not comply as to form in all material respects
with the applicable accounting requirements of the Exchange Act and the
Exchange Act Regulations or are not presented in conformity with generally
accepted accounting principles applied on a basis substantially consistent with
that of the audited consolidated financial statements included or incorporated
by reference in the Registration Statement, or (B) at the date of the most
recently available internal unaudited financial statements of the Company,
there has been any change in the capital stock of the Company or any increase
in the consolidated long term debt of the Company and the Subsidiaries or any
decrease in total assets of the Company and the Subsidiaries, in each case as
compared with the amounts shown in the September 30, 1996 balance sheet
included or incorporated by reference in the Registration Statement or, during
the period from September 30, 1996 to the date of the most recently available
internal unaudited financial statements of the Company, there were any
decreases, as compared with the corresponding period in the preceding year, in
total interest income, net interest income, net interest income after provision
for loan losses, net income or net income per share, except in all instances
for changes, increases or decreases which the Registration Statement and the
Prospectus disclose have occurred or may occur: (iv) in addition to the
examination referred to in their opinions and the limited procedures referred
to in clause (iii) above, they have carried out certain specified procedures,
not constituting an audit, with respect to certain amounts, percentages and
financial information which are included or incorporated by reference in the
Registration Statement and Prospectus and which are specified by the
Underwriter, and have found such amounts, percentages and financial information
to be in agreement with the relevant accounting, financial and other records of
the Company and the Subsidiaries identified in such letter; and (v) based upon
limited procedures set forth in their letter, nothing has come to their
attention which causes them to believe that the unaudited pro forma
consolidated condensed financial statements of the Company and the Subsidiaries
included or incorporated by reference in the Prospectus and the Registrations
Statement do not comply as to form in all material respects with the applicable
accounting requirements of the Securities Act Regulations and the pro forma
adjustments have not been properly applied to the historical amounts in the
compilation of those statements.

         (f)     At Closing Time, you shall have received from KPMG Peat
Marwick LLP a letter, dated as of Closing Time, to the effect that they
reaffirm the statements made in the letter furnished pursuant to subsection (e)
of this Section, except that the specified date





                                       16
<PAGE>   17
referred to shall be a date not more than five days prior to Closing Time.

         (g)     At Closing Time, you shall have received from KPMG Peat
Marwick LLP a letter, dated as of Closing Time, in form and substance
satisfactory to you, to the effect that (i) they are independent public
accountants with respect to North Side and its Subsidiaries within the meaning
of the Securities Act and the Securities Act Regulations; (ii) it is their
opinion that the financial statements of North Side and subsidiaries included
or incorporated by reference in the Registration Statement and covered by their
opinion or opinions therein comply as to form in all material respects with the
applicable accounting requirements of the Securities Act and the Securities Act
Regulations; (iii) based upon limited procedures set forth in detail in such
letter, nothing has come to their attention which causes them to believe that
(A) the unaudited consolidated financial statements of the North Side and its
subsidiaries included or incorporated by reference in the Registration
Statement and the Prospectus do not comply as to form in all material respects
with the applicable accounting requirements of the Securities Act and the
Securities Act Regulations or are not presented in conformity with generally
accepted accounting principles applied on a basis substantially consistent with
that of the audited consolidated financial statements included or incorporated
by reference in the Registration Statement.

   
         (h)     Except for the conditions set forth in Sections 7.1 (b)
through (e) (collectively, the "Mutual Conditions"), Sections 7.2 (e) and (f)
(collectively, the "North Fork Conditions") and Sections 7.3 (e) and (f) of the
Merger Agreement (collectively, the "North Side Conditions" and together with
the Mutual Conditions and the North Fork Conditions, the "Conditions"), all of
the conditions contained in the Merger Agreement to the Company's, North Fork
Bank's and North Side's obligations under the Merger Agreement shall have been
satisfied or waived, and the waiver of any such conditions, individually or in
the aggregate would not have a material adverse effect or prospective material
adverse effect on the financial condition, earnings or business of the Company
and its Subsidiaries, taken as a whole following the consummation of the
Merger, or could not reasonably be expected to materially and adversely affect
the properties or assets thereof.  You shall have received a certificate of the
Company, dated the Closing Date, and signed by the Chairman or the President
and the Chief Financial Officer of the Company, and a certificate of North
Side, dated the Closing Date, and signed by the Chairman or the President and
the Chief Financial Officer of North Side, each certificate stating that (x)
except for the Conditions and, based on the assumption that the Shares to be
sold pursuant to this Agreement have been sold, all of the conditions contained
in the Merger Agreement to the Company's, North Fork's and North Side's
obligations, as the case may be, under the Merger Agreement have been satisfied
or
    





                                       17
<PAGE>   18
waived (any such waiver being described in an appendix to such certificates),
(y) nothing has come to their attention which would make them believe that the
Conditions will not be satisfied, and (z) subject to the satisfaction of the
Conditions the Company, North Fork Bank and North Side, as the case may be, are
prepared to close the transactions contemplated by the Merger Agreement after
the closing of the sale of Shares hereunder.  Subsequent to the sale of the
Shares to you pursuant to the terms of this Agreement, the Merger shall remain
subject to the Conditions.

    SECTION 6.  Indemnification.

         (a)  The Company agrees to indemnify and hold you harmless and each
person, if any, who controls you within the meaning of Section 15 of the
Securities Act as follows:

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

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

            (iii)  against any and all reasonable expense, as incurred,
         (including, subject to subsection 6(c) hereof, the fees and
         disbursements of counsel chosen by you), reasonably incurred in
         investigating, preparing or defending against any litigation, or
         investigation or proceeding by any governmental agency or body,
         commenced or threatened, or any claim whatsoever based upon any such
         untrue statement or omission, or any such alleged untrue statement or
         omission, to the extent that any such expense is not paid under (i) or
         (ii) above;





                                       18
<PAGE>   19
         provided, however that the foregoing indemnity shall not inure to the
benefit of you (or any person controlling you) to the extent of any loss,
liability, claim, damage or expense if (A) such statement or omission of such
alleged statement or omission was made in reliance upon and in conformity with
information furnished to the Company by you in writing expressly for use in the
Registration Statement (or any amendment thereto) or any such preliminary
prospectus or the Prospectus (or any amendment or supplement thereto); or (B)
as to any preliminary prospectus, you failed to send or give a copy of the
Prospectus, as the same may be amended or supplemented, to any person within
the time required by the Securities Act, and such untrue statement or alleged
untrue statement of a material fact or omission or alleged omission to state a
material fact in such preliminary prospectus was corrected in the Prospectus,
as the same may be amended or supplemented.

         (b)  You agree to indemnify and hold harmless the Company, its
directors, each of its officers and each person, if any, who controls the
Company within the meaning of Section 15 of the Securities Act against any and
all loss, liability, claim, damage and reasonable expense described in the
indemnity contained in subsection (a) of this Section, as incurred, but only
with respect to untrue statements or omissions, or alleged untrue statements or
omissions, made in the Registration Statement (or any amendment thereto) or any
preliminary prospectus or the Prospectus (or any amendment or supplement
thereto), in reliance upon and in conformity with written information furnished
to the Company by you expressly for use in the Registration Statement (or any
amendment thereto), any preliminary prospectus or the Prospectus (or any
amendment or supplement thereto).

         (c)  Each indemnified party shall give prompt notice to each
indemnifying party of any action commenced against it in respect of which
indemnity may be sought hereunder, but failure to so notify an indemnifying
party shall not relieve it from any liability which it may have otherwise than
on account of this indemnity agreement.  An indemnifying party may participate
at its own expense in the defense of any such action.  In no event shall an
indemnifying party be liable for the fees and expenses of more than one counsel
separate from their own counsel for all indemnified parties in connection with
any one action or separate but similar or related actions in the same
jurisdiction arising out of the same general allegations or circumstances.  An
indemnifying party shall not be obligated to reimburse an indemnified party
hereunder for any amount paid to effect settlement of any action or claim
unless such settlement shall have been consented to in writing by the
indemnifying party.

         SECTION 7.  Contribution.  In order to provide for just and equitable
contribution in circumstances in which the indemnity agreement provided for in
Section 6 is for any reason held to be unenforceable by the indemnified party
although applicable in





                                       19
<PAGE>   20
accordance with its terms, the Company and you shall contribute to the
aggregate losses, liabilities, claims, damages and reasonable expenses of the
nature contemplated by said indemnity agreement incurred by the Company and
you, as incurred, in such proportions that you are responsible for that portion
represented by the percentage that the underwriting discount appearing on the
cover page of the Prospectus bears to the initial public offering price
appearing thereon and the Company is responsible for the balance; provided,
however, that no person guilty of fraudulent misrepresentation (within the
meaning of Section 11(f) of the Securities Act) shall be entitled to
contribution from any person who was not guilty of such fraudulent
misrepresentation.  For purposes of this Section, each person, if any, who
controls you within the meaning of Section 15 of the Securities Act shall have
the same rights to contribution as you, and each director of the Company, each
officer of the Company, and each person, if any, who controls the Company
within the meaning of Section 15 of the Securities Act shall have the same
rights to contribution as the Company.

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

    SECTION 9.  Termination of Agreement.

         (a)     You may also terminate this Agreement, by notice to the
Company, at any time at or prior to the Closing Time (i) if there has been,
since the respective dates as of which information is given in the Registration
Statement, any material adverse change or any event which is reasonably likely
to result in a prospective material adverse change in the financial condition,
earnings or business of the Company and it Subsidiaries considered as one
enterprise, whether or not arising in the ordinary course of business, (ii) if
there has occurred any outbreak of hostilities or escalation of any existing
hostilities or other calamity or crisis the effect of which on the financial
markets of the United States is such as to make it, in your reasonable
professional judgment, impracticable to market the Common Stock or to enforce
contracts for the sale of the Common Stock, or (iii) if trading in the Common
Stock has been suspended by the Commission, or if trading or quotation
generally on either the American Stock Exchange or the New York Stock Exchange
or Nasdaq National Market has been suspended, or minimum or maximum prices for
trading have been fixed, or maximum ranges for prices for securities have been
required, by either of said Exchanges or Nasdaq National Market or by order of
the Commission or any other governmental authority, of if a banking moratorium
has been declared by either Federal or New





                                       20
<PAGE>   21
York authorities or controls have been in effect for at least two consecutive
business days.

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

    SECTION 10.  Notices.  All notices and other communications hereunder shall
be in writing and shall be deemed to have been duly given if mailed or
transmitted and received by any standard form of telecommunication.  Notices to
you shall be directed to them c/o Keefe, Bruyette & Woods, Inc., Two World
Trade Center, 85th Floor, New York, NY 10048; attention John Duffy, Executive
Vice President; notices to the Company shall be directed to North Fork
Bancorporation, Inc., 275 Broad Hollow Road, Melville, New York 11747;
attention John Adam Kanas, President, with a copy to William S. Rubenstein,
Esq., Skadden, Arps, Slate, Meagher & Flom LLP, 919 Third Avenue, New York, New
York 10022.

    SECTION 11.  Parties.  This Agreement shall inure to the benefit of and be
binding upon you and the Company and their respective successors.  Nothing
expressed or mentioned in this Agreement is intended or shall be construed to
give any person, firm or corporation, other than you and the Company and their
respective successors and the controlling persons and officers and directors
referred to in Sections 6 and 7 and their heirs and legal representatives, any
legal or equitable right, remedy or claim under or in respect of this Agreement
or any provision herein contained.  This Agreement and all conditions and
provisions hereof are intended to be for the sole and exclusive benefit of you
and the Company and their respective successors, and said controlling persons
and officers and directors and their heirs and legal representatives, and for
the benefit of no other person, firm or corporation.  No purchaser of Shares
from you shall be deemed to be a successor by reason merely of such purchase.

    SECTION 12.  GOVERNING LAW.  THIS AGREEMENT SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK APPLICABLE TO
AGREEMENTS MADE AND TO BE PERFORMED IN SAID STATE.





                                       21
<PAGE>   22
         Section 13.  Counterparts.  This Agreement may be executed in
counterparts, each of which shall be deemed to constitute an original.

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


                                           Very truly yours,
                                           
                                               NORTH FORK BANCORPORATION, INC.
                                           
                                           
                                           
                                           By:                                  
                                               ---------------------------------
                                               Name and Title
                                           
                                           
CONFIRMED AND ACCEPTED,                    
  as of the date first above written:      
                                           
                                           
KEEFE, BRUYETTE & WOODS, INC.              
                                           
                                           
                                           
By:                                        
     --------------------------------      
     Senior Vice President             






                                       22
<PAGE>   23
                                                                       EXHIBIT A


                                 600,000 Shares

                        NORTH FORK BANCORPORATION, INC.

                            (a Delaware corporation)

                                  Common Stock

                          (Par Value $2.50 Per Share)


                               PRICING AGREEMENT


                                                        , 1996



KEEFE, BRUYETTE & WOODS, INC.
Two World Trade Center
85th Floor
New York, New York  10048

Dear Sirs:

         Reference is made to the Underwriting Agreement, dated     , 1996 (the
"Underwriting Agreement"), relating to the purchase by you as underwriter (the
"Underwriter"), of the above shares of Common Stock (the "Shares"), of North
Fork Bancorporation, Inc.  (the "Company").

         Pursuant to Section 2 of the Underwriting Agreement, the Company
agrees with the Underwriter as follows:

                 1.  The initial public offering price per share for the
         Initial Shares, determined as provided in said Section 2, shall be
         $____.

                 2.  The purchase price per share for the Shares to be paid by
         the Underwriter shall be $____, being an amount equal to the initial
         public offering price set forth above less $____ per share.





                                       1
<PAGE>   24
         If the foregoing is in accordance with your understanding of our
agreement, please sign and return to the Company a counterpart hereof,
whereupon this instrument, along with all counterparts, will become a binding
agreement between the Underwriter and the Company in accordance with its terms.


                                              Very truly yours,
                                              
                                              
                                              
                                              NORTH FORK BANCORPORATION, INC.
                                              
                                              By:                           
                                                  -----------------------------
                                                  Name and Title
                                              
                                              
                                              
CONFIRMED AND ACCEPTED,                       
as of the date first above written:           
                                              
                                              
KEEFE, BRUYETTE & WOODS, INC.                 
                                              
                                              
By:                                           
   --------------------------
   Senior Vice President






                                       2

<PAGE>   1
                                                                   Exhibit 5.1


                                                November 22, 1996


North Fork Bancorporation, Inc.
275 Broad Hollow Road
Melville, NY 11747


        Re: North Fork Bancorporation, Inc.
            Registration on Form S-3


Gentlemen:

        We have acted as special counsel to North Fork Bancorporation, Inc., a
Delaware corporation (the "Company"), in connection with the sale of up to
600,000 shares (the "Shares") of the common stock, par value $2.50 per share,
of the Company (the "Common Stock"), and an equal number of rights to purchase
units of Series A Junior Participating Preferred Stock of the Company
associated therewith (the "Rights"), to Keefe, Bruyette & Woods, Inc. (the
"Underwriter"), which Shares are currently held by the Company as treasury
shares, pursuant to the Underwriting Agreement (the "Underwriting Agreement"),
in substantially the form filed as an exhibit to the Registration Statement (as
hereinafter defined), proposed to be entered into between the Company, as
issuer, and the Underwriter.

        This opinion is delivered in accordance with the requirements of Item
601(b)(5) of Regulation S-K under the Securities Act of 1933, as amended (the
"Act"). 

        In connection with this opinion, we have examined originals or copies,
certified or otherwise identified to our satisfaction, of (i) the Registration
Statement on Form S-3 (File No. 333-11985) as filed with the Securities and
Exchange Commission (the "Commission") on September 13, 1996 under the Act and
Amendment No. 1 thereto filed with the Commission on November 22, 1996,
<PAGE>   2
North Fork Bancorporation, Inc.
November 22, 1996
Page 2

(such Registration Statement as so amended being hereinafter referred to as
the "Registration Statement"); (ii) the form of the Underwriting Agreement;
(iii) the Company's Certificate of Incorporation, as presently in effect; (iv)
the Company's By-laws, as presently in effect; (v) the resolutions of the Board
of Directors of the Company relating to, among other things, the issuance and
sale of the Common Stock and Rights; (vi) drafts of certain resolutions of a
Pricing Committee (the "Pricing Committee") of the Board of Directors of the
Company (the "Draft Resolutions"); and (vii) the form of a specimen certificate
representing the Common Stock (and the Rights). We have also examined
originals or copies, certified or otherwise identified to our satisfaction, of
such records of the Company and such agreements, certificates of public
officials, certificates of officers or other representatives of the Company and
others, and such other documents, certificates and records as we have deemed
necessary or appropriate as a basis for the opinions set forth herein.

        In our examination, we have assumed the legal capacity of all natural
persons, the genuineness of all signatures, the authenticity of all documents
submitted to us as originals, the conformity to original documents of all
documents submitted to us as certified, conformed or photostatic copies and the
authenticity of the originals of such latter documents. In making our
examination of documents executed or to be executed by parties other than the
Company, we have assumed that such parties had or will have the power,
corporate or other, to enter into and perform all obligations thereunder and
have also assumed the due authorization by all requisite action, corporate or
other, and execution and delivery by such parties of such documents and the
validity and binding effect thereof. As to any facts material to the opinions
expressed herein which we have not independently established or verified, we
have relied upon statements and representations of officers and other
representatives of the Company and others.

        Members of our firm are admitted to the Bar in the State of New York,
and we do not express any opinion as to the laws of any other jurisdiction
other than the

<PAGE>   3
North Fork Bancorporation, Inc.
November 22, 1996
Page 3




General Corporation Law of the State of Delaware (the "DGCL").

        Based upon the subject to the foregoing we are of the opinion that when
(i) the Registration Statement becomes effective, (ii) the Draft Resolutions
have been adopted by the Pricing Committee, (iii) the price at which the Common
Stock is to be sold to the Underwriters pursuant to the Underwriting Agreement
and other matters relating to the issuance and sale of the Common Stock have
been approved by the Pricing Committee of the Board of Directors in accordance
with the Draft Resolutions, (iv) the Underwriting Agreement has been duly
executed and delivered, and (v) certificates representing the Shares in the form
of the specimen certificates examined by us have been manually signed by an
authorized officer of the transfer agent and registrar for the Common Stock and
registered by such transfer agent and registrar, and delivered to and paid for
by the Underwriters as contemplated by the Underwriting Agreement, (a) the
issuance and sale of the Shares will have been duly authorized, and the Shares
will be validly issued, fully paid and nonassessable and (b) the Rights, when
issued as described in the Registration Statement and in accordance with the
Rights Agreement, will be duly authorized and validly issued.

        We hereby consent to the use of our name in the Registration Statement
under the caption "Legal Matters" and to the filing of this opinion as an
exhibit to the Registration Statement. In giving such consent, we do not
thereby admit that we come within the category of persons whose consent is
required under Section 7 of the Act or the rules and regulations of the
Commission thereunder.



                                        Very truly yours,



                                        /s/ Skadden, Arps, Slate,
                                            Meagher & Flom LLP





    

<PAGE>   1
                                                                EXHIBIT 23.1

   
                        CONSENT OF INDEPENDENT AUDITORS
    

The Stockholders and Board of Directors
North Side Savings Bank:

   
We consent to incorporation by reference in the registration statement on Form
S-3 of North Fork Bancorporation, Inc., of our report dated October 18, 1995,
relating to the consolidated statements of condition of North Side Savings Bank
and subsidiaries as of September 30, 1995 and 1994 and the related consolidated
statements of operations, changes in shareholders' equity, and cash flows for
each of the years in the three-year period ended September 30, 1995 which is
included in the Current Report on Form 8-K of North Fork Bancorporation, Inc.
which is incorporated in Form S-3 by reference. We also consent to the reference
to our firm under the heading "Experts" in the registration statement.
    

Our report refers to a change in accounting for certain investment in debt and
equity securities.


/s/ KPMG Peat Marwick LLP

New York, New York
November 22, 1996


<PAGE>   1
                                                                EXHIBIT 23.2

                        CONSENT OF INDEPENDENT AUDITORS'

The Stockholders and Board of Directors
North Fork Bancorporation, Inc.

We consent to the incorporation by reference in the Registration Statement filed
on September 13, 1996 on Form S-3 of North Fork Bancorporation, Inc., of our
report dated January 16, 1996, relating to the consolidated balance sheets of
North Fork Bancorporation, Inc. and subsidiaries as of December 31, 1995 and
1994, and the related consolidated statements of income, changes in
stockholders' equity and cash flows for each of the years in the three-year
period ended December 31, 1995, and to the reference to our firm under the
heading "Experts" in the Registration Statement. Our report with respect to
these financial statements which includes an explanatory paragraph related to
changes in accounting principles, appears in the Annual Report on Form 10-K of
North Fork Bancorporation, Inc. for the fiscal year ended December 31, 1995.


/s/ KPMG Peat Marwick LLP

New York, New York
November 22, 1996



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