BROOKLYN UNION GAS CO
SC 13D, 1997-01-09
NATURAL GAS DISTRIBUTION
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13D

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934

                         THE BROOKLYN UNION GAS COMPANY
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                   COMMON STOCK, PAR VALUE $0.33 1/3 PER SHARE
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    114259104
- --------------------------------------------------------------------------------
                                 (CUSIP Number)

                               LEONARD P. NOVELLO,
                                 GENERAL COUNSEL
                          LONG ISLAND LIGHTING COMPANY
                            175 EAST OLD COUNTRY ROAD
                           HICKSVILLE, NEW YORK 11801
                                 (516) 545-5162
- --------------------------------------------------------------------------------
           (Name, Address and Telephone Number of Person Authorized to
                       Receive Notices and Communications)

                                     Copy to
                            THOMAS E. CONSTANCE, ESQ.
                        KRAMER, LEVIN, NAFTALIS & FRANKEL
                                919 THIRD AVENUE
                            NEW YORK, NEW YORK 10022
                                 (212) 715-9100


                                DECEMBER 29, 1996
- --------------------------------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)



                               Page 1 of 12 Pages


<PAGE>


CUSIP NO.    114259104                                        Page 2 of 12 Pages

                                  SCHEDULE 13D

1.       NAME OF REPORTING PERSON
         SS OR I.R.S IDENTIFICATION NO. OF ABOVE PERSON

         Long Island Lighting Company
         11-1019782

2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP     (a)  [ ]

                                                              (b)  [ ]

3.       SEC USE ONLY

4.       SOURCE OF FUNDS
         WC

5.       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
         PURSUANT TO ITEMS 2(d) OR 2(e)

6.       CITIZENSHIP OR PLACE OF ORGANIZATION
         New York
                                        
                    7.       SOLE VOTING POWER        
NUMBER OF                    0                        
SHARES                                                
BENEFICIALLY        8.       SHARES VOTING POWER      
OWNED BY                     0                        
EACH                                                  
REPORTING           9.       SOLE DISPOSITIVE POWER   
PERSON                       0                        
WITH                                                  
                    10.      SHARES DISPOSITIVE POWER 
                             0                        

11.      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         9,948,682 shares of Common Stock.

12.      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

13.      PERCENT OF CLASS  REPRESENTED  BY AMOUNT IN ROW (11) 16.6%.  Based upon
         49,993,378  shares of Common Stock outstanding as of December 18, 1996,
         as represented by Issuer,  calculated  pursuant to Rule 13d-3(d)(1) and
         assuming,  solely for purposes of such calculation,  that the option to
         purchase such shares has been exercised.

14.      TYPE OF REPORTING PERSON
         CO


<PAGE>

ITEM 1.  SECURITY AND ISSUER.

         This Schedule 13D relates to the common stock,  par value $0.33 1/3 per
share ("BUG  Common  Stock"),  of The  Brooklyn  Union Gas  Company,  a New York
corporation  ("BUG").  The principal executive offices of BUG are located at One
Metrotech Center, Brooklyn, New York 11201-3850.

ITEM 2.  IDENTITY AND BACKGROUND.

         This Schedule 13D is filed by Long Island Lighting Company,  a New York
corporation  ("LILCO").  LILCO  supplies  electric and gas service in Nassau and
Suffolk  Counties and to the Rockaway  Peninsula in Queens  County,  all on Long
Island,  New York.  LILCO's principal  executive offices are located at 175 East
Old Country Road, Hicksville, New York 11801.

         Each  executive  officer and each director of LILCO is a citizen of the
United States.  The name,  business address and present principal  occupation of
each  executive  officer and director are set forth in Annex I to this  Schedule
13D which is incorporated herein by this reference.

         During the last five years, to the best of LILCO's  knowledge,  neither
LILCO nor any of its  executive  officers or directors  has been  convicted in a
criminal  proceeding  (excluding traffic violations or similar  misdemeanors) or
has been a party to a civil proceeding of a judicial or  administrative  body of
competent  jurisdiction  as a result  of which  LILCO or such  person  was or is
subject to a judgment,  decree or final order enjoining future violations of, or
prohibiting  or mandating  activities  subject to,  federal or state  securities
laws, or finding any violation  with respect to such laws,  and which  judgment,
decree or final order was not subsequently vacated.

ITEM 3.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

         Pursuant to a stock  option  agreement,  dated as of December 29, 1996,
between Brooklyn Union and LILCO (the "BUG Stock Option Agreement"), BUG granted
LILCO an  irrevocable  option (the "BUG  Option") to  purchase  from BUG,  under
certain  circumstances  and  subject to  certain  adjustments,  up to  9,948,682
authorized  and  unissued  shares of BUG Common  Stock,  at a price per share of
$30.0375 (the "Purchase Price"),  payable, at LILCO's option, (a) in cash or (b)
subject to BUG's having  obtained the  approvals of any  governmental  authority
required for BUG to acquire such shares of LILCO Common Stock (as defined below)
from BUG, in shares of Common  Stock,  par value 85 per share,  of LILCO ("LILCO
Common Stock").

         As of the date hereof, the BUG Option is not exercisable. The shares of
BUG Common Stock subject to the BUG Option would equal 19.9% of the  outstanding
BUG Common  Stock  before  giving  effect to the  exercise of the BUG Option and
16.6%


                               Page 3 of 12 Pages


<PAGE>

of the  outstanding  BUG Common Stock after giving effect to the exercise of the
BUG Option. Under certain circumstances, LILCO may require BUG to, or BUG may be
permitted  to,  repurchase  for cash the BUG Option and any shares of BUG Common
Stock acquired pursuant to the exercise of the BUG Option.

         The  BUG  Option  was  granted  by  BUG  as  a  condition   of  and  in
consideration for LILCO entering into the Agreement and Plan of Exchange, by and
among  NYECO  CORP.,  a New York  corporation  ("NYECO"  or,  from and after the
consummation of the Binding Share Exchanges (as defined below),  the "Company"),
BUG and LILCO, dated as of December 29, 1996 (the "Exchange Agreement"), and the
LILCO Stock Option Agreement, by and between BUG and LILCO, dated as of December
29, 1996 (the "LILCO Stock Option Agreement"), each as described below.

         The exercise of the BUG Option for the full number of shares  currently
covered thereby would require aggregate funds of $298,833,535. It is anticipated
that,  should the BUG Option become  exercisable  and should LILCO  determine to
exercise  the BUG Option for cash,  LILCO  would  obtain the funds from  working
capital or by borrowing from parties whose identity is not yet known.

         A copy of the BUG Stock Option  Agreement is included as Exhibit 2.3 to
this Schedule 13D and is incorporated  herein by this  reference.  The foregoing
description  of the BUG Stock  Option  Agreement is qualified in its entirety by
reference to such exhibit.

ITEM 4.  PURPOSE OF TRANSACTION.

         In  connection  with the  execution of the BUG Stock Option  Agreement,
BUG,  LILCO and NYECO  entered into the Exchange  Agreement,  pursuant to which,
among other  matters and  subject to the terms and  conditions  set forth in the
Exchange  Agreement,  each  outstanding  share of  LILCO  Common  Stock  will be
exchanged for .803 (the  "Ratio") of a newly issued share of Common  Stock,  par
value $0.01 per share, of NYECO (the "NYECO Common Stock") and each  outstanding
share of BUG Common Stock will be exchanged  for one newly issued share of NYECO
Common Stock (collectively,  the "Binding Share Exchanges").  Also in connection
with the execution of the BUG Stock Option Agreement, BUG and LILCO entered into
the LILCO  Stock  Option  Agreement,  pursuant  to which  LILCO  granted  BUG an
irrevocable  option (the "LILCO  Option") to purchase from LILCO,  under certain
circumstances and subject to certain  adjustments,  up to 23,981,964  authorized
and  unissued  shares of LILCO  Common  Stock,  at a price per share of $19.725,
payable,  at BUG's option,  (a) in cash or (b) subject to BUG's having  obtained
the  approvals of any  governmental  authority  required for BUG to acquire such
shares of LILCO Common Stock from LILCO,  in shares of LILCO Common  Stock.  The
LILCO Option was granted by LILCO as a condition of and in consideration for


                               Page 4 of 12 Pages


<PAGE>

BUG entering into the Exchange Agreement and the BUG Stock Option Agreement.

         Consummation  of the  Binding  Share  Exchanges  is  subject to certain
conditions,  including  among other  things:  (i) receipt of the approval of the
Exchange  Agreement by the holders of  two-thirds of the  outstanding  shares of
LILCO Common Stock and by  two-thirds  of the  outstanding  shares of BUG Common
Stock; (ii) registration of the shares of NYECO Common Stock to be issued in the
Binding Share  Exchanges  under the  Securities  Act of 1933, as amended;  (iii)
approval  for  listing of the shares of NYECO  Common  Stock to be issued in the
Binding  Share  Exchanges  on the New York  Stock  Exchange  (the  "NYSE")  upon
official notice of issuance;  (iv) receipt of required approvals by governmental
authorities,  which approvals shall have become final and shall not impose terms
or conditions which, in the aggregate,  would have, or insofar as reasonably can
be foreseen,  could have, a material  adverse  effect on the  business,  assets,
financial  condition or results of operations of the Company and its prospective
subsidiaries taken as a whole or which would be materially inconsistent with the
agreements of the parties  contained in the Exchange  Agreement;  (v) receipt by
each of BUG and  LILCO of a letter  from  their  respective  independent  public
accountants  confirming that the transactions  effected pursuant to the Exchange
Agreement  will qualify as a pooling of interests  transaction  under  generally
accepted  accounting  principles and applicable  regulations  promulgated by the
Securities  and Exchange  Commission;  and (vi)  satisfaction  of certain  other
conditions. Pursuant to the Exchange Agreement, upon consummation of the Binding
Share  Exchanges,  (a) the  number of  directors  comprising  the full  Board of
Directors of the Company will be 15 persons,  six of whom will be  designated by
BUG,  six of whom  will  be  designated  by  LILCO  and  three  of whom  will be
designated  by a  committee  consisting  of two current  BUG  directors  and two
current LILCO directors and (b) Dr. William J.  Catacosinos will be the Chairman
of the  Board of  Directors,  Chairman  of the  Executive  Committee  and  Chief
Executive Officer of the Company, and Mr. Robert B. Catell will be President and
Chief Operating  Officer of the Company.  Upon consummation of the Binding Share
Exchanges,  each of the LILCO  Common  Stock and the BUG  Common  Stock  will be
delisted  from the  NYSE.  Pursuant  to the  Exchange  Agreement,  at the  first
anniversary  of  the  effective  time  of  the  Binding  Share  Exchanges,   Dr.
Catacosinos  will cease to be the Chief Executive  Officer,  will continue to be
Chairman of the Board and Chairman of the Executive  Committee and will become a
consultant of the Company,  and Mr. Catell will succeed Dr. Catacosinos as Chief
Executive Officer of the Company.

         A copy of the  Exchange  Agreement  is  included as Exhibit 2.1 to this
Schedule  13D and is  incorporated  herein  by  this  reference.  The  foregoing
description of the Exchange  Agreement is qualified in its entirety by reference
to such exhibit.


                               Page 5 of 12 Pages


<PAGE>

         A copy of the LILCO Stock  Option  Agreement is included as Exhibit 2.2
to this Schedule 13D and is incorporated herein by this reference. The foregoing
description of the LILCO Stock Option  Agreement is qualified in its entirety by
reference to such exhibit.

         BUG and LILCO  contemplate that discussions will continue with the Long
Island Power Authority ("LIPA") to arrive at an agreement,  mutually  acceptable
to each of BUG and LILCO, pursuant to which LIPA would acquire certain assets or
securities of LILCO, the  consideration  for which would inure to the benefit of
the  Company.  In such event,  the Ratio will  automatically  be revised to, and
become, .880.

         BUG and LILCO will continue their respective  current dividend policies
until the  closing of the  Binding  Share  Exchanges.  It is  expected  that the
Company's dividend policy will be determined prior to closing.

         Except as set forth  herein,  LILCO does not have any current  plans or
proposals that relate to or would result in (i) the acquisition by any person of
additional shares of BUG Common Stock or the disposition of shares of BUG Common
Stock;  (ii)  an  extraordinary   corporate  transaction,   such  as  a  merger,
reorganization or liquidation, involving BUG or any of its subsidiaries; (iii) a
sale  or  transfer  of  any  material  amount  of  assets  of  BUG or any of its
subsidiaries; (iv) any change in the present board of directors or management of
BUG,  including any plans or proposals to change the number or term of directors
or to fill any  vacancies on the board;  (v) any material  change in the present
capitalization  or dividend  policy of BUG;  (vi) any other  material  change in
BUG's business or corporate structure;  (vii) any change in BUG's Certificate of
Incorporation or Bylaws, or instruments  corresponding thereto, or other actions
that may impede the acquisition of control of BUG by any person;  (viii) causing
a class of securities of BUG to be delisted from a national  securities exchange
or to cease to be authorized to be quoted in an inter-dealer quotation system of
a registered national securities association;  (ix) a class of equity securities
of BUG becoming  eligible for  termination of  registration  pursuant to Section
12(g)(4) of the Securities  Exchange Act of 1934, as amended;  or (x) any action
similar to any of those enumerated above.

ITEM 5.  INTEREST IN SECURITIES OF ISSUER.

         Although  the BUG Option does not allow LILCO to purchase any shares of
BUG Common Stock  pursuant  thereto  unless and until the conditions to exercise
specified in the BUG Stock Option Agreement occur, assuming for purposes of this
Item 5 that such  conditions  are  satisfied  and LILCO is  entitled to purchase
shares of BUG Common Stock pursuant to the BUG Option,  LILCO would currently be
entitled to purchase  9,948,682  shares of BUG Common  Stock,  or  approximately
19.9% of the currently outstanding


                               Page 6 of 12 Pages


<PAGE>

BUG Common  Stock  before  giving  effect to the  exercise of the BUG Option and
16.6% of the currently  outstanding  BUG Common Stock after giving effect to the
exercise of the BUG Option  (based upon  49,993,378  shares of BUG Common  Stock
outstanding  as of December  18,  1996,  as  represented  by BUG in the Exchange
Agreement).

         LILCO does not have the right to acquire any shares of BUG Common Stock
under the BUG Option  unless  certain  events  specified in the BUG Stock Option
Agreement  occur.  Accordingly,  LILCO  does not have sole or  shared  voting or
dispositive  power with  respect to any shares of BUG Common  Stock  purchasable
under the BUG Option,  and LILCO  disclaims  beneficial  ownership of BUG Common
Stock subject to the BUG Option until such events  occur.  Assuming for purposes
of this Item 5 that events  occurred that would enable LILCO to exercise the BUG
Option and LILCO  exercised  the BUG Option,  LILCO would have sole voting power
and sole  dispositive  power with  respect  to the  shares of BUG  Common  Stock
acquired pursuant to the BUG Option.

         The  foregoing  description  of certain  terms of the BUG Stock  Option
Agreement  is  qualified  in its  entirety by  reference to the BUG Stock Option
Agreement which is filed as Exhibit 2.3 hereto and which is incorporated  herein
by this reference.

         To the best of LILCO's  knowledge,  no executive officer or director of
LILCO  beneficially  owns any shares of BUG Common  Stock,  nor  (except for the
issuance  of the BUG  Option)  have any  transactions  in BUG Common  Stock been
effected during the past 60 days by BUG or, to the best knowledge of BUG, by any
executive officer or director of LILCO. In addition, no other person is known by
LILCO to have the  right to  receive  or the  power to  direct  the  receipt  of
dividends from, or the proceeds from the sale of, the securities covered by this
Schedule 13D.

ITEM 7.  MATERIAL TO BE FILED AS EXHIBITS.

         The following exhibits are filed as part of this Schedule 13D:

Exhibit 2.1 --       Exchange Agreement filed as Exhibit 2 to the
                     Current Report on Form 8-K of LILCO dated
                     December 29, 1996, is hereby
                     incorporated by reference

Exhibit 2.2 --       LILCO Stock Option Agreement

Exhibit 2.3 --       BUG Stock Option Agreement


                               Page 7 of 12 Pages


<PAGE>

                                                                         ANNEX I

                        DIRECTORS AND EXECUTIVE OFFICERS

         Set forth below are the name and present  principal  occupation of each
director and executive  officer of Long Island  Lighting  Company as of December
29, 1996.  The business  address of each such director and executive  officer is
c/o Long Island Lighting  Company,  175 East Old Country Road,  Hicksville,  New
York 11801.

NAME                                    PRINCIPAL OCCUPATION

DIRECTORS
OF LILCO:

A. James Barnes                        Dean, Indiana               
                                       University School of Public 
                                       and Environmental Affairs   
                                        
George Bugliarello                     Chancellor, Polytechnic
                                       University

Renso L. Caporali                      Senior Vice President of
                                       Government and Commercial
                                       Marketing, Raytheon Company
                                       
Dr. William J. Catacosinos             Chairman and Chief Executive
                                       Officer, Long Island Lighting
                                       Company
                                       
Peter O. Crisp                         President, Venrock, Inc.

James T. Flynn                         President and Chief Operating
                                       Officer, Long Island Lighting
                                       Company
                                       
Vicki L. Fuller                        Senior Vice President, Alliance
                                       Capital Management Corporation
                                                                              
Katherine O. Ortega                    Former Treasurer of the United
                                       States
                                                                              
Basil A. Paterson                      Partner, law firm of Meyer,
                                       Suozzi, English and Klein, P.C.
                                                                              
Richard L. Schmalensee                 Director, Massachusetts
                                       Institute of Technology Center
                                       for Energy and Environmental
                                       Policy Research


                               Page 8 of 12 Pages


<PAGE>

George J. Sideris                      Retired Senior Vice President,
                                       Long Island Lighting Company
                                                                              

John H. Talmage                        Partner, H.R. Talmage & Son Farm


EXECUTIVE OFFICERS
OF LILCO
(WHO ARE NOT DIRECTORS):


Theodore A. Babcock                    Vice President and Treasurer,
                                       Assistant Corporate Secretary
                                                                              
Charles A. Daverio                     Vice President, Energy Exchange
                                       Corp.
                                                                              

Joseph E. Fontana                      Vice President and Controller

Robert X. Kelleher                     Vice President, Human Resources

John D. Leonard, Jr.                   Vice President, Engineering &
                                       Construction

Adam M. Madsen                         Vice President, Corporate
                                       Planning

Kathleen A. Marion                     Vice President, Corporate
                                       Securities and Corporate
                                       Secretary
                                       
Brian R. McCaffrey                     Vice President, Administration

Joseph W. McDonnell                    Senior Vice President, Electric
                                       & Gas Marketing and External
                                       Affairs
                                       
Leonard P. Novello                     Senior Vice President and
                                       General Counsel
                                                                              
Anthony Nozzolillo                     Senior Vice President, Finance
                                       and Chief Financial Officer
                                                                              
Richard Reichler                       Vice President, Tax and Benefit
                                       Compliance and Deputy General
                                       Counsel
                                       
William G. Schiffmacher                Senior Vice President, Customer
                                       Relations and Information
                                       Systems
                                       
Werner J. Schweiger                    Vice President, Electric
                                       Operations
                                       
                                       
                               Page 9 of 12 Pages


<PAGE>

Richard M. Siegel                      Vice President, Information
                                       Systems and Technology
                                                                              

Robert B. Steger                       Senior Vice President, Gas
                                       Operations
                                                                              

William E. Steiger, Jr.                Vice President, Fossil
                                       Production
                                       
Edward J. Youngling                    Senior Vice President, Electric
                                       Business Unit
                                       
                                       
                               Page 10 of 12 Pages


<PAGE>

                                    SIGNATURE

         After reasonable  inquiry and to the best of my knowledge and belief, I
certify that the information  set forth in this statement is true,  complete and
correct.

                               LONG ISLAND LIGHTING COMPANY



                                By: /s/ Anthony Nozzolillo
                                   -----------------------
                                     Name:  Anthony Nozzolillo
                                     Title: Senior Vice President, Finance
                                             and Chief Financial Officer

Dated:  January 9, 1997


                               Page 11 of 12 Pages


<PAGE>

                                  EXHIBIT INDEX


EXHIBIT           DESCRIPTION

2.1               Agreement and Plan of Exchange, dated as of December
                  29, 1996, among NYECO Corp., The Brooklyn Union Gas
                  Company and Long Island Lighting Company, filed as
                  Exhibit 2.1 to the Current Report on Form 8-K of Long
                  Island Lighting Company dated December 29, 1996, is
                  incorporated herein by reference.

2.2               LILCO Stock Option Agreement, dated as of December 29,
                  1996, between The Brooklyn Union Gas Company and Long
                  Island Lighting Company.

2.3               BUG Stock Option Agreement, dated as of December 29,
                  1996, between The Brooklyn Union Gas Company and Long
                  Island Lighting Company.


                               Page 12 of 12 Pages



                          LILCO STOCK OPTION AGREEMENT

         STOCK OPTION AGREEMENT,  dated as of December 29, 1996 by and among THE
BROOKLYN  UNION GAS COMPANY,  a New York  corporation  ("BUG"),  and LONG ISLAND
LIGHTING COMPANY, a New York corporation (the "COMPANY").

         WHEREAS,   concurrently   with  the  execution  and  delivery  of  this
Agreement,  (i) BUG,  the  Company  and  NYECO  Corp.,  a New  York  corporation
("NYECO"),  are entering into an Agreement and Plan of Exchange, dated as of the
date hereof (the "EXCHANGE AGREEMENT"), which provides, among other things, upon
the terms and subject to the conditions thereof, for the exchange of outstanding
shares of capital  stock of each of BUG and the Company for newly issued  shares
of capital stock of NYECO (the "BINDING SHARE  EXCHANGE"),  and (ii) the Company
and BUG are entering into a certain stock option  agreement dated as of the date
hereof  whereby  BUG  grants to the  Company an option  with  respect to certain
shares of BUG's  common  stock on the terms and  subject to the  conditions  set
forth therein (the "BUG STOCK OPTION AGREEMENT"); and

         WHEREAS, as a condition to BUG's willingness to enter into the Exchange
Agreement,  BUG has  requested  that the Company  agree,  and the Company has so
agreed,  to grant  to BUG an  option  with  respect  to  certain  shares  of the
Company's  common stock,  on the terms and subject to the  conditions  set forth
herein.

         NOW, THEREFORE, to induce BUG to enter into the Exchange Agreement, and
in  consideration of the mutual covenants and agreements set forth herein and in
the Exchange Agreement, the parties hereto agree as follows:

                  1.  GRANT  OF  OPTION.   The  Company  hereby  grants  BUG  an
         irrevocable  option (the "COMPANY OPTION") to purchase up to 23,981,964
         shares,  subject to  adjustment  as provided in Section 11 (such shares
         being referred to herein as the "COMPANY  SHARES") of common stock, par
         value $5.00 per share,  of the Company  (the  "COMPANY  COMMON  STOCK")
         (being  19.9%  of  the  number  of  shares  of  Company   Common  Stock
         outstanding  on the date  hereof) in the  manner  set forth  below at a
         price (the  "EXERCISE  PRICE") per Company  Share of $19.725  (which is
         equal to the Fair Market Value (as defined below) of a Company Share on
         the date hereof) payable,  at BUG's option,  (a) in cash or (b) subject
         to the  Company's  having  obtained the  approvals of any  Governmental
         Authority  required  for the  Company  to  acquire  the BUG  Shares (as
         defined  below) from BUG,  which  approvals  the Company shall use best
         efforts to obtain,  in shares of common  stock,  par value $.33 1/3 per
         share,  of BUG ("BUG SHARES") in either case in accordance with Section
         4 hereof.  Notwithstanding the foregoing,  in no event shall the number
         of Company Shares for which the Company  Option is  exercisable  exceed
         19.9% of the number of issued and outstanding  shares of Company Common
         Stock.  As used herein,  the "FAIR MARKET  VALUE" of any share shall be
         the average of the daily  closing sales price for such share on the New
         York Stock  Exchange (the "NYSE") during the 10 NYSE trading days prior
         to the fifth NYSE trading day preceding the date such Fair Market Value
         is to be determined. Capitalized


                                       -1


<PAGE>

         terms used herein but not defined  herein  shall have the  meanings set
         forth in the Exchange Agreement.

                  2. EXERCISE OF OPTION.  The Company Option may be exercised by
         BUG,  in whole or in part,  at any time or from time to time  after the
         Exchange Agreement becomes terminable by BUG under  circumstances which
         could entitle BUG to  termination  fees under either  Section 9.3(a) of
         the Exchange  Agreement  (provided that the events specified in Section
         9.3(a)(ii)(x) of the Exchange  Agreement shall have occurred,  although
         the events  specified  in Section  9.3(a)(ii)(y)  thereof need not have
         occurred) or Section  9.3(b) of the Exchange  Agreement  (regardless of
         whether the Exchange Agreement is actually  terminated or whether there
         occurs a closing of any Business  Combination  involving a Target Party
         or a closing by which a Target Party  becomes a  subsidiary),  any such
         event by which the  Exchange  Agreement  becomes so  terminable  by BUG
         being referred to herein as a "TRIGGER EVENT." The Company shall notify
         BUG  promptly in writing of the  occurrence  of any Trigger  Event,  it
         being  understood  that the giving of such notice by the Company  shall
         not be a condition to the right of BUG to exercise the Company  Option.
         In the event BUG  wishes to  exercise  the  Company  Option,  BUG shall
         deliver  to  the  Company  a  written  notice  (an  "EXERCISE  NOTICE")
         specifying  the total  number of Company  Shares it wishes to purchase.
         Each closing of a purchase of Company Shares (a "CLOSING")  shall occur
         at a place,  on a date and at a time  designated  by BUG in an Exercise
         Notice  delivered at least two  business  days prior to the date of the
         Closing.  The Company  Option shall  terminate upon the earlier of: (i)
         the Effective  Time;  (ii) the  termination  of the Exchange  Agreement
         pursuant  to  Section  9.1  thereof  (other  than  upon or  during  the
         continuance  of a  Trigger  Event);  or (iii)  180 days  following  any
         termination of the Exchange Agreement upon or during the continuance of
         a Trigger  Event (or if, at the  expiration  of such 180 day period the
         Company  Option  cannot  be  exercised  by  reason  of  any  applicable
         judgment, decree, order, law or regulation, 10 business days after such
         impediment  to  exercise  shall have been  removed or shall have become
         final and not  subject to  appeal,  but in no event  under this  clause
         (iii) later than June 30, 1998).  Notwithstanding  the  foregoing,  the
         Company Option may not be exercised if BUG is in material breach of any
         of its material representations or warranties, or in material breach of
         any of its covenants or  agreements,  contained in this Agreement or in
         the  Exchange  Agreement.  Upon the giving by BUG to the Company of the
         Exercise  Notice and the tender of the  applicable  aggregate  Exercise
         Price,  BUG shall be deemed to be the  holder of record of the  Company
         Shares  issuable  upon such  exercise,  notwithstanding  that the stock
         transfer books of the Company shall then be closed or that certificates
         representing  such Company Shares shall not then be actually  delivered
         to BUG.

                  3.  CONDITIONS  TO CLOSING.  The  obligation of the Company to
         issue the Company Shares to BUG hereunder is subject to the conditions,
         which (other than the  conditions  described in clauses (i),  (iii) and
         (iv) below) may be waived by the Company in its sole  discretion,  that
         (i) all waiting periods,  if any, under the HSR Act,  applicable to the
         issuance of the Company  Shares  hereunder  shall have  expired or have
         been terminated;  (ii) the Company Shares, and any BUG Shares which are
         issued in payment of the Exercise  Price,  shall have been approved for
         listing on the NYSE upon official


                                       -2


<PAGE>

         notice  of  issuance;   (iii)  all  consents,   approvals,   orders  or
         authorizations of, or registrations,  declarations or filings with, any
         federal,  state or local  administrative  agency or commission or other
         federal,  state or local  Governmental  Authority,  if any, required in
         connection with the issuance of the Company Shares hereunder shall have
         been  obtained  or  made,  as  the  case  may  be,  including,  without
         limitation, if applicable,  the approval of the SEC under Section 10 of
         the 1935 Act of the  acquisition  of the Company  Shares by BUG and, if
         applicable,   the   acquisition  by  the  Company  of  the  BUG  Shares
         constituting the Exercise Price  hereunder;  and (iv) no preliminary or
         permanent   injunction  or  other  order  by  any  court  of  competent
         jurisdiction  prohibiting or otherwise  restraining such issuance shall
         be in effect.

                  4.  CLOSING.  At any Closing,  (a) the Company will deliver to
         BUG  or  its  designee  a  single   certificate   in  definitive   form
         representing the number of the Company Shares  designated by BUG in its
         Exercise  Notice,  such certificate to be registered in the name of BUG
         and to bear the  legend  set  forth  in  Section  12,  and (b) BUG will
         deliver to the Company the  aggregate  price for the Company  Shares so
         designated  and being  purchased  by (i) wire  transfer of  immediately
         available funds or certified check or bank check or (ii) subject to the
         condition in Section 1(b), a certificate or  certificates  representing
         the number of BUG Shares being issued by BUG in consideration  thereof,
         as the case may be. For the purposes of this  Agreement,  the number of
         BUG  Shares  to be  delivered  to the  Company  shall  be  equal to the
         quotient  obtained  by  dividing  (i) the  product of (x) the number of
         Company  Shares  with  respect  to which  the  Company  Option is being
         exercised  and (y) the Exercise  Price by (ii) the Fair Market Value of
         the BUG Shares on the date immediately  preceding the date the Exercise
         Notice is delivered to the Company. The Company shall pay all expenses,
         and any and all United States federal,  state and local taxes and other
         charges that may be payable in connection with the  preparation,  issue
         and delivery of stock  certificates under this Section 4 in the name of
         BUG or its designee.

                  5.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY.  The
         Company  represents and warrants to BUG that (a) except as set forth in
         Section  5.1  of  the  LILCO  Disclosure  Schedule,  the  Company  is a
         corporation duly organized, validly existing and in active status under
         the  laws of the  State of New York  and has the  corporate  power  and
         authority to enter into this  Agreement  and,  subject to obtaining the
         applicable  approval of  shareholders of the Company for the repurchase
         of Company  Shares  pursuant to Section 7(a) below under  circumstances
         where  Section  513(e) of the NYBCL would be  applicable  (the "BUYBACK
         APPROVALS") and subject to any regulatory  approvals referred to herein
         and to the provisions of Section 513(a) of the NYBCL, if applicable, to
         carry out its obligations hereunder,  (b) the execution and delivery of
         this  Agreement by the Company and the  consummation  by the Company of
         the transactions  contemplated  hereby have been duly authorized by all
         necessary  corporate  action  on the part of the  Company  and no other
         corporate  proceedings  on the part of the  Company  are  necessary  to
         authorize this Agreement or any of the transactions contemplated hereby
         (other than any required Buyback Approvals),  (c) such corporate action
         (including  the  approval of the Board of  Directors of the Company) is
         intended to render  inapplicable  to this  Agreement  and the  Exchange
         Agreement and the transactions


                                       -3


<PAGE>

         contemplated  hereby and thereby,  the provisions of the NYBCL referred
         to in Section 5.15 of the Exchange  Agreement,  (d) this  Agreement has
         been duly  executed and  delivered by the Company,  constitutes a valid
         and binding  obligation  of the Company and,  assuming  this  Agreement
         constitutes  a valid and  binding  obligation  of BUG,  is  enforceable
         against the Company in accordance  with its terms,  (e) the Company has
         taken all  necessary  corporate  action to  authorize  and  reserve for
         issuance  and to permit  it to  issue,  upon  exercise  of the  Company
         Option, and at all times from the date hereof through the expiration of
         the  Company  Option  will have  reserved,  23,981,964  authorized  and
         unissued  Company  Shares,  such amount being  subject to adjustment as
         provided in Section 11, all of which,  upon their issuance and delivery
         in accordance with the terms of this Agreement, will be validly issued,
         fully paid and  nonassessable,  (f) upon delivery of the Company Shares
         to BUG upon the  exercise of the Company  Option,  BUG will acquire the
         Company  Shares  free  and  clear  of  all  claims,   liens,   charges,
         encumbrances  and  security  interests  of any nature  whatsoever,  (g)
         except as described in Section  5.4(b) of the Exchange  Agreement,  the
         execution  and delivery of this  Agreement by the Company does not, and
         the consummation by the Company of the transactions contemplated hereby
         will  not,  violate,  conflict  with,  or  result  in a  breach  of any
         provision of, or constitute a default (with or without  notice or lapse
         of time, or both) under, or result in the termination of, or accelerate
         the  performance  required  by, or  result  in a right of  termination,
         cancellation,  or  acceleration  of any  obligation  or the  loss  of a
         material  benefit under,  or the creation of a lien,  pledge,  security
         interest or other encumbrance on assets (any such conflict,  violation,
         default,  right of termination,  cancellation or acceleration,  loss or
         creation,  a  "VIOLATION")  of the Company or any of its  subsidiaries,
         pursuant to, (A) any provision of the certificate of  incorporation  or
         by-laws  of the  Company,  (B) any  provisions  of any  loan or  credit
         agreement,  note, mortgage,  indenture,  lease, Company benefit plan or
         other agreement, obligation, instrument, permit, concession, franchise,
         license or (C) any judgment,  order, decree,  statute,  law, ordinance,
         rule or  regulation  applicable  to the  Company or its  properties  or
         assets,  which  Violation,  in the case of each of clauses (B) and (C),
         could  reasonably be expected to have a material  adverse effect on the
         Company and its subsidiaries  taken as a whole, (h) except as described
         in Section 5.4(c) of the Exchange  Agreement or Section 1(b) or Section
         3 hereof,  the execution and delivery of this  Agreement by the Company
         does not,  and the  performance  of this  Agreement by the Company will
         not,  require any  consent,  approval,  authorization  or permit of, or
         filing with or notification to, any Governmental Authority, (i) none of
         the Company,  any of its  affiliates  or anyone  acting on its or their
         behalf has issued,  sold or offered any  security of the Company to any
         person  under  circumstances  that would cause the issuance and sale of
         the Company Shares, as contemplated by this Agreement, to be subject to
         the registration requirements of the Securities Act as in effect on the
         date hereof and,  assuming  the  representations  of BUG  contained  in
         Section 6(h) are true and correct,  the issuance,  sale and delivery of
         the Company Shares  hereunder would be exempt from the registration and
         prospectus delivery requirements of the Securities Act, as in effect on
         the date hereof (and the Company  shall not take any action which would
         cause the issuance,  sale and delivery of the Company Shares  hereunder
         not to be  exempt  from  such  requirements),  and (j)  any BUG  Shares
         acquired  pursuant to this Agreement will be acquired for the Company's
         own account,  for investment  purposes only and will not be acquired by
         the Company


                                       -4


<PAGE>

         with a view to the  public  distribution  thereof in  violation  of any
         applicable provision of the Securities Act.

                  6.  REPRESENTATIONS  AND WARRANTIES OF BUG. BUG represents and
         warrants to the Company that (a) BUG is a corporation  duly  organized,
         validly  existing and in good  standing  under the laws of the State of
         New York and has the  corporate  power and authority to enter into this
         Agreement and to carry out its obligations hereunder, (b) the execution
         and delivery of this  Agreement by BUG and the  consummation  by BUG of
         the transactions  contemplated  hereby have been duly authorized by all
         necessary  corporate  action on the part of BUG and no other  corporate
         proceedings  on the  part  of  BUG  are  necessary  to  authorize  this
         Agreement  or any of the  transactions  contemplated  hereby,  (c) this
         Agreement has been duly executed and delivered by BUG and constitutes a
         valid and binding  obligation  of BUG,  and,  assuming  this  Agreement
         constitutes  a  valid  and  binding  obligation  of  the  Company,   is
         enforceable  against BUG in accordance with its terms, (d) prior to any
         delivery  of BUG Shares in  consideration  of the  purchase  of Company
         Shares  pursuant  hereto,  BUG will have taken all necessary  corporate
         action to  authorize  for  issuance  and to permit it to issue such BUG
         Shares,  all of which,  upon their  issuance and delivery in accordance
         with the terms of this Agreement,  will be validly  issued,  fully paid
         and  nonassessable,  and to render  inapplicable  to the receipt by the
         Company of the BUG Shares the  provisions  of the NYBCL  referred to in
         Section 4.15 of the Exchange  Agreement,  (e) upon any delivery of such
         BUG Shares to the Company in  consideration  of the purchase of Company
         Shares  pursuant  hereto,  the Company will acquire the BUG Shares free
         and clear of all claims,  liens,  charges,  encumbrances  and  security
         interests of any nature whatsoever,  (f) except as described in Section
         4.4(b) of the Exchange  Agreement,  the  execution and delivery of this
         Agreement  by  BUG  does  not,  and  the  consummation  by  BUG  of the
         transactions  contemplated hereby will not, violate,  conflict with, or
         result in the breach of any provision of, or constitute a default (with
         or without  notice or lapse of time,  or both) under,  or result in any
         Violation  by  BUG or any of  its  subsidiaries,  pursuant  to (A)  any
         provision of the  certificate of  incorporation  or by-laws of BUG, (B)
         any  provisions  of any  loan  or  credit  agreement,  note,  mortgage,
         indenture,  lease,  BUG benefit  plan or other  agreement,  obligation,
         instrument, permit, concession, franchise, license or (C) any judgment,
         order, decree,  statute, law, ordinance,  rule or regulation applicable
         to BUG or its  properties or assets,  which  Violation,  in the case of
         each of its  clauses  (B) and/or  (C),  would  have a material  adverse
         effect  on BUG and its  subsidiaries  taken as a whole,  (g)  except as
         described in Section  4.4(c) of the Exchange  Agreement or Section 1(b)
         or Section 3 hereof,  the execution  and delivery of this  Agreement by
         BUG  does  not,  and  the  consummation  by  BUG  of  the  transactions
         contemplated   hereby  will  not,   require  any   consent,   approval,
         authorization  or permit  of, or filing  with or  notification  to, any
         Governmental  Authority  and  (h)  any  Company  Shares  acquired  upon
         exercise of the Company  Option will be acquired for BUG's own account,
         for investment purposes only and will not be, and the Company Option is
         not  being,  acquired  by BUG  with a view to the  public  distribution
         thereof in violation of any applicable provision of the Securities Act.


                                       -5


<PAGE>

                  7.  CERTAIN REPURCHASES.

                  (a) BUG PUT.  At the  request of BUG by written  notice at any
         time during which the Company Option is exercisable pursuant to Section
         2 (the  "REPURCHASE  PERIOD"),  the  Company (or any  successor  entity
         thereof)  shall  repurchase  from BUG all or any portion of the Company
         Option,  at the price set forth in subparagraph  (i) below,  or, at the
         request of BUG by written notice at any time prior to December 31, 1997
         (provided  that such date shall be  extended to June 30, 1998 under the
         circumstances where the date after which either party may terminate the
         Exchange Agreement pursuant to Section 9.1(b) of the Exchange Agreement
         has been  extended to June 30,  1998),  the  Company (or any  successor
         entity  thereof)  shall  repurchase  from BUG all or any portion of the
         Company Shares purchased by BUG pursuant to the Company Option,  at the
         price set forth in subparagraph (ii) below:

                           (i) the difference  between the "MARKET/OFFER  PRICE"
                  for  shares of Company  Common  Stock as of the date BUG gives
                  notice of its intent to exercise its rights under this Section
                  7 (defined as the higher of (A) the price per share offered as
                  of such date pursuant to any tender or exchange offer or other
                  offer with  respect to a Business  Combination  which was made
                  prior to such date and not  terminated or withdrawn as of such
                  date (the  "OFFER  PRICE")  and (B) the Fair  Market  Value of
                  Company Common Stock as of such date (the "MARKET PRICE")) and
                  the Exercise Price, multiplied by the number of Company Shares
                  purchasable pursuant to the Company Option (or portion thereof
                  with respect to which BUG is exercising  its rights under this
                  Section 7), but only if the Market/Offer Price is greater than
                  the Exercise Price;

                         (ii)  the  product  of (x) the sum of (A) the  Exercise
                  Price paid by BUG per Company Share  acquired  pursuant to the
                  Company Option and (B) the difference between the Market/Offer
                  Price and the  Exercise  Price,  but only if the  Market/Offer
                  Price is greater than the Exercise  Price,  and (y) the number
                  of Company Shares to be  repurchased  pursuant to this Section
                  7. For purposes of this clause (ii),  the Offer Price shall be
                  the highest  price per share  offered  pursuant to a tender or
                  exchange offer or other Business  Combination offer during the
                  Repurchase  Period prior to the delivery by BUG of a notice of
                  repurchase.

                  (b)  REDELIVERY  OF BUG  SHARES.  If BUG  elected to  purchase
         Company  Shares  pursuant to the exercise of the Company  Option by the
         issuance  and  delivery of BUG Shares,  then the Company  shall,  if so
         requested by BUG, in fulfillment  of its obligation  pursuant to clause
         (a) of Section 7(a)(ii)(x) (that is, with respect to the Exercise Price
         only  and  without  limitation  to its  obligation  to  pay  additional
         consideration under clause (b) of Section  7(a)(ii)(x)),  redeliver the
         certificate  for such BUG  Shares to BUG,  free and clear of all liens,
         claims,  damages,  charges  and  encumbrances  of any  kind  or  nature
         whatsoever;  provided,  however,  that if less than all of the  Company
         Shares  purchased  by BUG  pursuant  to the  Company  Option  are to be
         repurchased  pursuant  to this  Section 7, then BUG shall  issue to the
         Company a new certificate  representing  those BUG Shares which are not
         due to be redelivered to BUG pursuant to this Section 7 as


                                       -6


<PAGE>

         they  constituted  payment of the Exercise Price for the Company Shares
         not being repurchased.

                  (c) PAYMENT AND REDELIVERY OF COMPANY OPTION OR SHARES. In the
         event BUG exercises its rights under this Section 7, the Company shall,
         within 10 business days  thereafter,  pay the required amount to BUG in
         immediately  available funds and BUG shall surrender to the Company the
         Company  Option  or the  certificates  evidencing  the  Company  Shares
         purchased by BUG pursuant  thereto,  and BUG shall warrant that it owns
         the Company  Option or such shares and that the Company  Option or such
         shares are then free and clear of all liens, claims,  damages,  charges
         and encumbrances of any kind or nature whatsoever.

                  (d) BUG CALL.  If BUG has elected to purchase  Company  Shares
         pursuant  to the  exercise of the Company  Option by the  issuance  and
         delivery of BUG Shares, notwithstanding that BUG may no longer hold any
         such Company Shares or that BUG elects not to exercise its other rights
         under this Section 7, BUG may require, at any time or from time to time
         prior to December 31, 1997  (provided  that such date shall be extended
         to June 30,  1998 under the  circumstances  where the date after  which
         either party may terminate the Exchange  Agreement  pursuant to Section
         9.1(b) of the Exchange  Agreement  has been extended to June 30, 1998),
         the Company to sell to BUG any such BUG Shares at the Fair Market Value
         that had been  attributed to such BUG Shares pursuant to Section 4 plus
         interest  at the rate of 6.5% per annum on such amount from the Closing
         Date relating to the exchange of such BUG Shares  pursuant to Section 4
         to the closing date under this Section 7(d) less any  dividends on such
         BUG  Shares  paid  during  such  period  or  declared  and  payable  to
         stockholders of record on a date during such period.

                  (e) REPURCHASE PRICE REDUCED AT BUG'S OPTION. In the event the
         repurchase  price  specified in Section 7(a) would subject the purchase
         of the Company Option or the Company  Shares  purchased by BUG pursuant
         to the  Company  Option to a vote of the  shareholders  of the  Company
         pursuant to Section 513(e) of the NYBCL, then BUG may, at its election,
         reduce  the  repurchase  price to an amount  which  would  permit  such
         repurchase without the necessity for such a shareholder vote.

                  8.       RESTRICTIONS ON TRANSFER.

                  (a)  RESTRICTIONS ON TRANSFER.  Prior to the Expiration  Date,
         neither  party shall,  directly or  indirectly,  by operation of law or
         otherwise,  sell,  assign,  pledge, or otherwise dispose of or transfer
         any Restricted Shares  beneficially owned by such party, other than (i)
         pursuant  to  Section 7, or (ii) in  accordance  with  Section  9(b) or
         Section 10.

                  (b) PERMITTED SALES. Following the termination of the Exchange
         Agreement,  a party shall be  permitted to sell any  Restricted  Shares
         beneficially  owned by it if such sale is made  pursuant to a tender or
         exchange  offer that has been  approved or  recommended,  or  otherwise
         determined to be fair to and in the best interests of the


                                       -7


<PAGE>

         shareholders  of the other  party,  by a majority of the members of the
         Board of Directors of such other party which  majority  shall include a
         majority of directors who were directors  prior to the  announcement of
         such tender or exchange offer.

                  9.  REGISTRATION  RIGHTS.  Following  the  termination  of the
         Exchange  Agreement,  each party hereto (a "DESIGNATED  HOLDER") may by
         written  notice  (the  "REGISTRATION  NOTICE")  to the other party (the
         "REGISTRANT")  request the  Registrant to register under the Securities
         Act all or any part of the Restricted Shares beneficially owned by such
         Designated  Holder (the  "REGISTRABLE  SECURITIES")  pursuant to a bona
         fide  firm  commitment   underwritten  public  offering  in  which  the
         Designated  Holder  and  the  underwriters   shall  effect  as  wide  a
         distribution   of  such   Registrable   Securities   as  is  reasonably
         practicable  and shall use their best  efforts  to  prevent  any person
         (including  any Group (as used in Rule 13d-5 under the  Exchange  Act))
         and its affiliates  form  purchasing  through such offering  Restricted
         Shares  representing  more than 1% of the outstanding  shares of common
         stock  of  the  Registrant  on a  fully  diluted  basis  (a  "PERMITTED
         OFFERING").   The  Registration  Notice  shall  include  a  certificate
         executed  by  the   Designated   Holder  and  its   proposed   managing
         underwriter,  which underwriter shall be an investment  banking firm of
         nationally  recognized standing (the "MANAGER"),  stating that (i) they
         have a good faith intention to commence  promptly a Permitted  Offering
         and (ii) the  Manager in good faith  believes  that,  based on the then
         prevailing market  conditions,  it will be able to sell the Registrable
         Securities  at a per share price equal to at least 80% of the then Fair
         Market  Value  of  such  shares.  The  Registrant  (and/or  any  person
         designated  by  the   Registrant)   shall  thereupon  have  the  option
         exercisable by written notice delivered to the Designated Holder within
         10  business  days  after  the  receipt  of  the  Registration  Notice,
         irrevocably  to agree to  purchase  all or any part of the  Registrable
         Securities  proposed  to be so sold  for cash at a price  (the  "OPTION
         PRICE")  equal  to  the  product  of  (i)  the  number  of  Registrable
         Securities to be so purchased by the  Registrant and (ii) the then Fair
         Market  Value  of  such  shares.   Any  such  purchase  of  Registrable
         Securities by the  Registrant  (or its designee)  hereunder  shall take
         place at a closing to be held at the principal executive offices of the
         Registrant or at the offices of its counsel at any reasonable  date and
         time  designated by the Registrant  and/or such designee in such notice
         within 20 business days after delivery of such notice.  Any payment for
         the shares to be  purchased  shall be made by  delivery  at the time of
         such closing of the Option Price in immediately available funds.

                  If the  Registrant  does not  elect  to  exercise  its  option
         pursuant to this Section 10 with respect to all Registrable Securities,
         it shall use its best  efforts to effect,  as promptly as  practicable,
         the   registration   under  the  Securities  Act  of  the   unpurchased
         Registrable Securities proposed to be so sold; provided, however,, that
         (i) neither  party shall be entitled to more than an  aggregate  of two
         effective  registration  statements  hereunder and (ii) the  Registrant
         will not be required to file any such registration statement during any
         period of time (not to exceed 40 days after such request in the case of
         clause (A) below or 90 days in the case of  clauses  (B) and (C) below)
         when  (A)  the  Registrant  is in  possession  of  material  non-public
         information  which it reasonably  believes  would be  detrimental to be
         disclosed  at  such  time  and,  in  the  opinion  of  counsel  to  the
         Registrant,


                                                         -8


<PAGE>

         such information would have to be disclosed if a registration statement
         were filed at that  time:  (B) the  Registrant  is  required  under the
         Securities Act to include audited  financial  statements for any period
         in such  registration  statement and such financial  statements are not
         yet available for inclusion in such registration  statement; or (C) the
         Registrant   determines,   in  its  reasonable   judgment,   that  such
         registration  would interfere with any financing,  acquisition or other
         material transaction involving the Registrant or any of its affiliates.
         The  Registrant  shall use its  reasonable  best  efforts  to cause any
         Registrable  Securities  registered  pursuant to this  Section 10 to be
         qualified  for sale  under  the  securities  or  Blue-Sky  laws of such
         jurisdictions as the Designated Holder may reasonably request and shall
         continue  such   registration  or   qualification  in  effect  in  such
         jurisdiction;  provided,  however,  that the  Registrant  shall  not be
         required to qualify to do business in, or consent to general service of
         process in, any jurisdiction by reason of this provision.

                  The  registration  rights  set  forth in this  Section  10 are
         subject to the condition that the  Designated  Holder shall provide the
         Registrant  with  such   information  with  respect  to  such  holder's
         Registrable  Securities,  the plans for the distribution  thereof,  and
         such  other  information  with  respect  to  such  holder  as,  in  the
         reasonable  judgment of counsel for the  Registrant,  is  necessary  to
         enable the  Registrant  to include in such  registration  statement all
         material  facts required to be disclosed with respect to a registration
         thereunder.

                  A  registration  effected  under  this  Section  10  shall  be
         effected at the Registrant's expense, except for underwriting discounts
         and  commissions  and the  fees  and the  expenses  of  counsel  to the
         Designated Holder, and the Registrant shall provide to the underwriters
         such  documentation  (including  certificates,  opinions of counsel and
         "comfort"  letters from auditors as are  customary in  connection  with
         underwritten  public  offerings  as such  underwriters  may  reasonably
         require.  In connection with any such  registration,  the parties agree
         (i) to  indemnify  each  other and the  underwriters  in the  customary
         manner,  (ii) to  enter  into an  underwriting  agreement  in form  and
         substance  customary for transactions of such type with the Manager and
         the other underwriters participating in such offering and (iii) to take
         all further actions which shall be reasonably  necessary to effect such
         registration  and sale  (including,  if the Manager deems it necessary,
         participating in road-show presentations).

                  The  Registrant  shall be entitled to include (at its expense)
         additional  shares  of its  common  stock  in a  registration  effected
         pursuant  to this  Section  10 only if and to the  extent  the  Manager
         determines that such inclusion will not adversely  affect the prospects
         of success of such offering.

                  10.  ADJUSTMENT  UPON  CHANGES  IN   CAPITALIZATION.   Without
         limitation  to  any  restriction  on  the  Company  contained  in  this
         Agreement or in the Exchange  Agreement,  in the event of any change in
         Company Common Stock by reason of stock  dividends,  splitups,  mergers
         (other   than  the   Binding   Share   Exchanges),   recapitalizations,
         combinations,  exchange  of shares or the like,  the type and number of
         shares or securities  subject to the Company  Option,  and the purchase
         price per share


                                       -9


<PAGE>

         provided  in Section 1, shall be adjusted  appropriately  to restore to
         BUG its rights  hereunder,  including  the right to  purchase  from the
         Company (or its successors) shares of Company Common Stock representing
         19.9%  of the  Outstanding  Company  Common  Stock  for  the  aggregate
         Exercise Price  calculated as of the date of this Agreement as provided
         in Section 1.

                  11. RESTRICTIVE LEGENDS. Each certificate  representing shares
         of Company  Common Stock issued to BUG  hereunder,  and BUG Shares,  if
         any,  delivered to the Company at a Closing,  shall include a legend in
         substantially the following form:

                  THE SECURITIES  REPRESENTED BY THIS  CERTIFICATE HAVE NOT BEEN
         REGISTERED  UNDER THE  SECURITIES  ACT OF 1933, AS AMENDED,  AND MAY BE
         REOFFERED OR SOLD ONLY IF SO  REGISTERED  OR IF AN EXEMPTION  FROM SUCH
         REGISTRATION  IS  AVAILABLE.   SUCH  SECURITIES  ARE  ALSO  SUBJECT  TO
         ADDITIONAL  RESTRICTIONS  ON TRANSFER AS SET FORTH IN THE STOCK  OPTION
         AGREEMENT,  DATED AS OF  DECEMBER  29,  1996,  A COPY OF  WHICH  MAY BE
         OBTAINED FROM THE ISSUER UPON REQUEST.

         It is  understood  and agreed  that:  (i) the  reference  to the resale
         restrictions of the Securities Act in the above legend shall be removed
         by delivery of substitute certificates(s) without such reference if BUG
         or the Company,  as the case may be, shall have  delivered to the other
         party a copy of a letter from the staff of the  Securities and Exchange
         Commission,   or  an  opinion  of  counsel,   in  form  and   substance
         satisfactory  to the other party, to the effect that such legend is not
         required for purposes of the Securities  Act; (ii) the reference to the
         provisions  to this  Agreement  in the above legend shall be removed by
         delivery of  substitute  certificate(s)  without such  reference if the
         shares have been sold or transferred in compliance  with the provisions
         of this  Agreement  and under  circumstances  that do not  require  the
         retention of such  reference;  and (iii) the legend shall be removed in
         its entirety if the  conditions in the  preceding  clauses (i) and (ii)
         are both satisfied. In addition, such certificates shall bear any other
         legend as may be required by law. Certificates representing shares sold
         in a  registered  public  offering  pursuant to Section 10 shall not be
         required to bear the legend set forth in Section 12.

                  12.      BINDING EFFECT; NO ASSIGNMENT; NO THIRD PARTY
         BENEFICIARIES.  This  Agreement  shall be binding upon and inure to the
         benefit of the  parties  hereto  and their  respective  successors  and
         permitted assigns.  Except as expressly provided for in this Agreement,
         neither  this  Agreement  nor the rights or the  obligations  of either
         party  hereto are  assignable,  except by operation of law, or with the
         written  consent  of  the  other  party.   Nothing  contained  in  this
         Agreement,  express or  implied,  is intended to confer upon any person
         other than the parties hereto and their  respective  permitted  assigns
         any  rights or  remedies  of any  nature  whatsoever  by reason of this
         Agreement. Any Restricted Shares sold by a party in compliance with the
         provisions of Section 10 shall, upon consummation of such sale, be free
         of the  restrictions  imposed  with  respect  to  such  shares  by this
         Agreement, unless and until such party shall


                                       -10


<PAGE>

         repurchase or otherwise become the beneficial owner of such shares, and
         any transferee of such shares shall not be entitled to the registration
         rights of such party.

                  13. SPECIFIC PERFORMANCE. The parties recognize and agree that
         if for any  reason  any of the  provisions  of this  Agreement  are not
         performed in  accordance  with their  specific  terms or are  otherwise
         breached,  immediate and irreparable harm or injury would be caused for
         which money damages would not be an adequate remedy. Accordingly,  each
         party agrees that, in addition to other remedies, the other party shall
         be entitled to an  injunction  restraining  any violation or threatened
         violation of the  provisions of this  Agreement.  In the event that any
         action  should be brought in equity to enforce  the  provisions  of the
         Agreement,  neither party will allege, and each party hereby waives the
         defense, that there is adequate remedy at law.

                  14. ENTIRE  AGREEMENT.  This  Agreement,  the BUG Stock Option
         Agreement,  the  Confidentiality  Agreement and the Exchange  Agreement
         (including  the exhibits and schedules  thereto)  constitute the entire
         agreement  among the parties with respect to the subject  matter hereof
         and   thereof   and   supersede   all  other   prior   agreements   and
         understandings, both written and oral, among the parties or any of them
         with respect to the subject matter hereof and thereof.

                  15.  FURTHER  ASSURANCES.  Each party will execute and deliver
         all such further  documents and  instruments  and take all such further
         action as may be  necessary  in order to  consummate  the  transactions
         contemplated hereby.

                  16.  VALIDITY.  The  invalidity  or  unenforceability  of  any
         provisions  of  this  Agreement   shall  not  affect  the  validity  or
         enforceability  of the other provisions of this Agreement,  which shall
         remain  in full  force  and  effect.  In the  event  any court or other
         competent  authority holds any provisions of this Agreement to be null,
         void or unenforceable, the parties hereto shall negotiate in good faith
         the execution and delivery of an amendment to this  Agreement in order,
         as nearly as possible,  to effectuate,  to the extent permitted by law,
         the intent of the parties hereto with respect to such provision and the
         economic  effects  thereof.  If  for  any  reason  any  such  court  or
         regulatory agency  determines that BUG is not permitted to acquire,  or
         the Company is not permitted to  repurchase  pursuant to Section 7, the
         full  number of shares of Company  Common  Stock  provided in Section 1
         hereof (as the same may be  adjusted),  it is the express  intention of
         the  Company  to allow BUG to  acquire  or to  require  the  Company to
         repurchase such lesser number of shares as may be permissible,  without
         any amendment or modification  hereof.  Each party agrees that,  should
         any  court or other  competent  authority  hold any  provision  of this
         Agreement or part hereof to be null,  void or  unenforceable,  or order
         any  party to take any  action  inconsistent  herewith,or  not take any
         action  required  herein,  the other  party  shall not be  entitled  to
         specific  performance  of such provision or part hereof or to any other
         remedy,  including but not limited to money damages,  for breach hereof
         or of any  other  provision  of this  Agreement  or part  hereof as the
         result of such holding or order.


                                       -11


<PAGE>

                  17.  NOTICES.  All notices and other  communication  hereunder
         shall  be in  writing  and  shall  be  deemed  given  if (i)  delivered
         personally,  or (ii) sent by reputable  overnight  courier service,  or
         (iii)  telecopied  (which is confirmed),  or (iv) five days after being
         mailed by registered or certified  mail (return  receipt  requested) to
         the parties at the following  addresses (or at such other address for a
         party as shall be specified by like notice):

                           A.      If to BUG, to:

                                   The Brooklyn Union Gas Company
                                   One Metrotech Center
                                   Brooklyn, New York 11201-3850
                                   Attention: Chief Executive Officer

                                   with a copy to:

                                   Wachtell, Lipton, Rosen & Katz
                                   51 West 52nd Street
                                   New York, New York  10019
                                   Attention:  Seth A. Kaplan

                           B.      If to the Company, to:

                                   Long Island Lighting Company
                                   175 East Old County Road
                                   Hicksville, New York  11801
                                   Attention: Chief Executive Officer

                                   with a copy to:

                                   Kramer, Levin, Naftalis & Frankel
                                   919 Third Avenue
                                   New York, New York  10022
                                   Attention: Thomas E. Constance

                  18.  GOVERNING LAW;  CHOICE OF FORUM.  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  entirely
         within such State and without  regard to its choice of law  principles.
         Each of the  parties  hereto  (a)  consents  to  submit  itself  to the
         personal  jurisdiction of any federal court located in the State of New
         York or any New York state court in the event any dispute arises out of
         this  Agreement  or  any  of  the  transactions  contemplated  by  this
         agreement,  (b) agrees  that it will not attempt to deny or defeat such
         personal  jurisdiction  by motion or other  request  for leave from any
         such court and (c) agrees that it will not bring any action relating to
         this  Agreement  or  any  of  the  transactions  contemplated  by  this
         Agreement in any court other than a federal  court sitting in the State
         of New York or a New York state court.



                                       -12


<PAGE>


                  19. INTERPRETATION. When a reference is made in this Agreement
         to a Section  such  reference  shall be to a Section of this  Agreement
         unless otherwise indicated. Whenever the words "include", "includes" or
         "including"  are used in this  Agreement,  they  shall be  deemed to be
         followed by the words "without  limitation".  The descriptive  headings
         herein are  inserted  for  convenience  of  reference  only and are not
         intended  to be part of or to affect the meaning or  interpretation  of
         this Agreement.

                  20.  COUNTERPARTS.  This  Agreement  may  be  executed  in two
         counterparts, each of which shall be deemed to be an original, but both
         of which, taken together, shall constitute one and the same instrument.

                  21. EXPENSES. Except as otherwise expressly provided herein or
         in  the  Exchange  Agreement,   all  costs  and  expenses  incurred  in
         connection with the  transactions  contemplated by this Agreement shall
         be paid by the party incurring such expenses.

                  22. AMENDMENTS;  WAIVER.  This Agreement may be amended by the
         parties hereto and the terms and  conditions  hereof may be waived only
         by an  instrument  in writing  signed on behalf of each of the  parties
         hereto,  or, in the case of a waiver, by an instrument signed on behalf
         of the party waiving compliance.

                  23.  EXTENSION OF TIME PERIODS.  The time periods for exercise
         of certain rights under  Sections 2, 6 and 7 shall be extended:  (i) to
         the  extent  necessary  to  obtain  all  regulatory  approvals  for the
         exercise  of  such  rights,  and for the  expiration  of all  statutory
         waiting  periods;  and  (ii)  to the  extent  necessary  to  avoid  any
         liability  under  Section  16(b) of the  Exchange Act by reason of such
         exercise.

                  24. REPLACEMENT OF COMPANY OPTION. Upon receipt by the Company
         of  evidence  reasonably   satisfactory  to  it  of  the  loss,  theft,
         destruction or mutilation of this Agreement,  and (in the case of loss,
         theft or destruction) of reasonably satisfactory  indemnification,  and
         upon surrender and  cancellation of this Agreement,  if mutilated,  the
         Company  will  execute  and deliver a new  Agreement  of like tenor and
         date.


                                       -13


<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their respective duly authorized officers as of the date first above
written.

                                     THE BROOKLYN UNION GAS COMPANY


                                     By:/s/ Robert B. Catell
                                        --------------------
                                          Name:  Robert B. Catell
                                          Title:  Chief Executive Officer



                                     LONG ISLAND LIGHTING COMPANY


                                     By:/s/ William J. Catacosinos
                                        --------------------------
                                          Name:  Dr. William J. Catacosinos
                                          Title:  Chief Executive Officer


                                       -14


                           BUG STOCK OPTION AGREEMENT

         STOCK OPTION AGREEMENT, dated as of December 29, 1996 by and among LONG
ISLAND LIGHTING  COMPANY,  a New York  corporation  ("LILCO"),  and THE BROOKLYN
UNION GAS COMPANY, a New York corporation (the "COMPANY").

         WHEREAS,   concurrently   with  the  execution  and  delivery  of  this
Agreement,  (i) LILCO,  the  Company  and NYECO  Corp.,  a New York  corporation
("NYECO"),  are entering into an Agreement and Plan of Exchange, dated as of the
date hereof (the "EXCHANGE AGREEMENT"), which provides, among other things, upon
the terms and subject to the conditions thereof, for the exchange of outstanding
shares of capital stock of each of LILCO and the Company for newly issued shares
of capital stock of NYECO (the "BINDING SHARE  EXCHANGE"),  and (ii) the Company
and LILCO are entering  into a certain  stock option  agreement  dated as of the
date  hereof  whereby  LILCO  grants to the  Company an option  with  respect to
certain  shares  of  LILCO's  common  stock  on the  terms  and  subject  to the
conditions set forth therein (the "LILCO STOCK OPTION AGREEMENT"); and

         WHEREAS,  as a  condition  to  LILCO's  willingness  to enter  into the
Exchange Agreement,  LILCO has requested that the Company agree, and the Company
has so agreed, to grant to LILCO an option with respect to certain shares of the
Company's  common stock,  on the terms and subject to the  conditions  set forth
herein.

         NOW,  THEREFORE,  to induce LILCO to enter into the Exchange Agreement,
and in consideration of the mutual covenants and agreements set forth herein and
in the Exchange Agreement, the parties hereto agree as follows:

                  1.  GRANT  OF  OPTION.  The  Company  hereby  grants  LILCO an
         irrevocable  option (the "COMPANY  OPTION") to purchase up to 9,948,682
         shares,  subject to  adjustment  as provided in Section 11 (such shares
         being referred to herein as the "COMPANY  SHARES") of common stock, par
         value $.33 1/3 per share,  of the Company (the "COMPANY  COMMON STOCK")
         (being  19.9%  of  the  number  of  shares  of  Company   Common  Stock
         outstanding  on the date  hereof) in the  manner  set forth  below at a
         price (the  "EXERCISE  PRICE") per Company Share of $30.0375  (which is
         equal to the Fair Market Value (as defined below) of a Company Share on
         the date hereof) payable, at LILCO's option, (a) in cash or (b) subject
         to the  Company's  having  obtained the  approvals of any  Governmental
         Authority  required  for the  Company to acquire  the LILCO  Shares (as
         defined below) from LILCO,  which  approvals the Company shall use best
         efforts  to  obtain,  in shares of common  stock,  par value  $5.00 per
         share,  of LILCO  ("LILCO  SHARES") in either case in  accordance  with
         Section 4 hereof.  Notwithstanding the foregoing, in no event shall the
         number of Company  Shares for which the Company  Option is  exercisable
         exceed 19.9% of the number of issued and outstanding  shares of Company
         Common  Stock.  As used herein,  the "FAIR  MARKET  VALUE" of any share
         shall be the average of the daily closing sales price for such share on
         the New York Stock  Exchange  (the  "NYSE")  during the 10 NYSE trading
         days prior


                                       -1


<PAGE>

         to the fifth NYSE trading day preceding the date such Fair Market Value
         is to be  determined.  Capitalized  terms used  herein but not  defined
         herein shall have the meanings set forth in the Exchange Agreement.

                  2. EXERCISE OF OPTION.  The Company Option may be exercised by
         LILCO,  in whole or in part, at any time or from time to time after the
         Exchange  Agreement  becomes  terminable  by LILCO under  circumstances
         which could  entitle  LILCO to  termination  fees under either  Section
         9.3(a) of the Exchange Agreement (provided that the events specified in
         Section  9.3(a)(ii)(x)  of the Exchange  Agreement shall have occurred,
         although the events specified in Section 9.3(a)(ii)(y) thereof need not
         have occurred) or Section 9.3(b) of the Exchange Agreement  (regardless
         of whether the  Exchange  Agreement is actually  terminated  or whether
         there occurs a closing of any Business  Combination  involving a Target
         Party or a closing by which a Target Party becomes a  subsidiary),  any
         such event by which the Exchange  Agreement  becomes so  terminable  by
         LILCO being referred to herein as a "TRIGGER  EVENT." The Company shall
         notify  LILCO  promptly  in writing of the  occurrence  of any  Trigger
         Event,  it being  understood  that the  giving  of such  notice  by the
         Company  shall not be a condition to the right of LILCO to exercise the
         Company  Option.  In the event  LILCO  wishes to  exercise  the Company
         Option,  LILCO  shall  deliver  to the  Company  a written  notice  (an
         "EXERCISE  NOTICE")  specifying  the total number of Company  Shares it
         wishes to  purchase.  Each  closing of a purchase of Company  Shares (a
         "CLOSING")  shall occur at a place,  on a date and at a time designated
         by LILCO in an Exercise  Notice  delivered at least two  business  days
         prior to the date of the Closing.  The Company  Option shall  terminate
         upon the earlier of: (i) the Effective  Time;  (ii) the  termination of
         the Exchange Agreement pursuant to Section 9.1 thereof (other than upon
         or  during  the  continuance  of a  Trigger  Event);  or (iii) 180 days
         following any termination of the Exchange  Agreement upon or during the
         continuance  of a Trigger  Event (or if, at the  expiration of such 180
         day period the  Company  Option  cannot be  exercised  by reason of any
         applicable judgment, decree, order, law or regulation, 10 business days
         after such impediment to exercise shall have been removed or shall have
         become  final and not  subject  to appeal,  but in no event  under this
         clause (iii) later than June 30, 1998).  Notwithstanding the foregoing,
         the Company Option may not be exercised if LILCO is in material  breach
         of any of its material  representations  or warranties,  or in material
         breach  of  any of its  covenants  or  agreements,  contained  in  this
         Agreement or in the Exchange Agreement. Upon the giving by LILCO to the
         Company  of the  Exercise  Notice  and  the  tender  of the  applicable
         aggregate  Exercise  Price,  LILCO  shall be deemed to be the holder of
         record  of  the   Company   Shares   issuable   upon   such   exercise,
         notwithstanding that the stock transfer books of the Company shall then
         be closed or that  certificates  representing such Company Shares shall
         not then be actually delivered to LILCO.

                  3.  CONDITIONS  TO CLOSING.  The  obligation of the Company to
         issue  the  Company  Shares  to  LILCO  hereunder  is  subject  to  the
         conditions,  which (other than the conditions described in clauses (i),
         (iii)  and  (iv)  below)  may be  waived  by the  Company  in its  sole
         discretion,  that (i) all waiting  periods,  if any, under the HSR Act,
         applicable to the issuance of the Company Shares  hereunder  shall have
         expired or have been


                                       -2


<PAGE>

         terminated;  (ii) the Company  Shares,  and any LILCO  Shares which are
         issued in payment of the Exercise  Price,  shall have been approved for
         listing  on the NYSE  upon  official  notice  of  issuance;  (iii)  all
         consents,  approvals,  orders or  authorizations  of, or registrations,
         declarations   or   filings   with,   any   federal,   state  or  local
         administrative  agency or commission or other  federal,  state or local
         Governmental  Authority,  if  any,  required  in  connection  with  the
         issuance of the Company  Shares  hereunder  shall have been obtained or
         made, as the case may be, including, without limitation, if applicable,
         the  approval  of the  SEC  under  Section  10 of the  1935  Act of the
         acquisition  of the  Company  Shares by LILCO and, if  applicable,  the
         acquisition  by  the  Company  of the  LILCO  Shares  constituting  the
         Exercise  Price  hereunder;   and  (iv)  no  preliminary  or  permanent
         injunction  or other  order  by any  court  of  competent  jurisdiction
         prohibiting or otherwise restraining such issuance shall be in effect.

                  4.  CLOSING.  At any Closing,  (a) the Company will deliver to
         LILCO  or  its  designee  a  single   certificate  in  definitive  form
         representing  the number of the Company  Shares  designated by LILCO in
         its Exercise  Notice,  such certificate to be registered in the name of
         LILCO and to bear the  legend  set forth in  Section  12, and (b) LILCO
         will deliver to the Company the aggregate  price for the Company Shares
         so designated  and being  purchased by (i) wire transfer of immediately
         available funds or certified check or bank check or (ii) subject to the
         condition in Section 1(b), a certificate or  certificates  representing
         the  number of LILCO  Shares  being  issued  by LILCO in  consideration
         thereof,  as the case may be. For the purposes of this  Agreement,  the
         number of LILCO Shares to be delivered to the Company shall be equal to
         the quotient  obtained by dividing (i) the product of (x) the number of
         Company  Shares  with  respect  to which  the  Company  Option is being
         exercised  and (y) the Exercise  Price by (ii) the Fair Market Value of
         the  LILCO  Shares  on the  date  immediately  preceding  the  date the
         Exercise Notice is delivered to the Company.  The Company shall pay all
         expenses,  and any and all United States federal, state and local taxes
         and  other  charges  that  may  be  payable  in  connection   with  the
         preparation,  issue  and  delivery  of stock  certificates  under  this
         Section 4 in the name of LILCO or its designee.

                  5.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY. The Company
         represents  and  warrants  to LILCO  that (a)  except  as set  forth in
         Section  4.1  of the  Nassau  Disclosure  Schedule,  the  Company  is a
         corporation duly organized, validly existing and in active status under
         the  laws of the  State of New York  and has the  corporate  power  and
         authority to enter into this  Agreement  and,  subject to obtaining the
         applicable  approval of  shareholders of the Company for the repurchase
         of Company  Shares  pursuant to Section 7(a) below under  circumstances
         where  Section  513(e) of the NYBCL would be  applicable  (the "BUYBACK
         APPROVALS") and subject to any regulatory  approvals referred to herein
         and to the provisions of Section 513(a) of the NYBCL, if applicable, to
         carry out its obligations hereunder,  (b) the execution and delivery of
         this  Agreement by the Company and the  consummation  by the Company of
         the transactions  contemplated  hereby have been duly authorized by all
         necessary  corporate  action  on the part of the  Company  and no other
         corporate  proceedings  on the part of the  Company  are  necessary  to
         authorize this Agreement or any of the transactions contemplated hereby
         (other than any required Buyback Approvals), (c) such corporate


                                       -3


<PAGE>

         action  (including  the  approval  of the  Board  of  Directors  of the
         Company) is intended to render  inapplicable  to this Agreement and the
         Exchange  Agreement  and  the  transactions   contemplated  hereby  and
         thereby, the provisions of the NYBCL referred to in Section 4.15 of the
         Exchange  Agreement,  (d) this  Agreement  has been duly  executed  and
         delivered by the Company, constitutes a valid and binding obligation of
         the  Company  and,  assuming  this  Agreement  constitutes  a valid and
         binding  obligation  of LILCO,  is  enforceable  against the Company in
         accordance  with its terms,  (e) the  Company  has taken all  necessary
         corporate action to authorize and reserve for issuance and to permit it
         to issue,  upon exercise of the Company  Option,  and at all times from
         the date hereof  through the expiration of the Company Option will have
         reserved, 9,948,682 authorized and unissued Company Shares, such amount
         being  subject to  adjustment  as provided in Section 11, all of which,
         upon their  issuance and delivery in accordance  with the terms of this
         Agreement,  will be validly issued,  fully paid and nonassessable,  (f)
         upon  delivery of the Company  Shares to LILCO upon the exercise of the
         Company Option, LILCO will acquire the Company Shares free and clear of
         all claims, liens, charges,  encumbrances and security interests of any
         nature  whatsoever,  (g) except as described  in Section  4.4(b) of the
         Exchange Agreement, the execution and delivery of this Agreement by the
         Company  does  not,  and  the   consummation  by  the  Company  of  the
         transactions  contemplated hereby will not, violate,  conflict with, or
         result in a breach of any  provision  of, or constitute a default (with
         or without  notice or lapse of time,  or both) under,  or result in the
         termination of, or accelerate the performance required by, or result in
         a right of termination, cancellation, or acceleration of any obligation
         or the loss of a material  benefit  under,  or the  creation of a lien,
         pledge,  security  interest  or other  encumbrance  on assets (any such
         conflict,  violation,  default,  right of termination,  cancellation or
         acceleration, loss or creation, a "VIOLATION") of the Company or any of
         its subsidiaries,  pursuant to, (A) any provision of the certificate of
         incorporation or by-laws of the Company, (B) any provisions of any loan
         or credit agreement, note, mortgage,  indenture, lease, Company benefit
         plan or other agreement,  obligation,  instrument,  permit, concession,
         franchise,  license or (C) any judgment,  order, decree,  statute, law,
         ordinance,  rule  or  regulation  applicable  to  the  Company  or  its
         properties or assets,  which Violation,  in the case of each of clauses
         (B) and (C),  could  reasonably be expected to have a material  adverse
         effect on the Company and its subsidiaries taken as a whole, (h) except
         as  described in Section  4.4(c) of the  Exchange  Agreement or Section
         1(b) or Section 3 hereof,  the execution and delivery of this Agreement
         by the Company does not, and the  performance  of this Agreement by the
         Company  will not,  require any  consent,  approval,  authorization  or
         permit  of,  or  filing  with  or  notification  to,  any  Governmental
         Authority,  (i) none of the Company,  any of its  affiliates  or anyone
         acting on its or their behalf has issued,  sold or offered any security
         of the Company to any person under  circumstances  that would cause the
         issuance  and  sale of the  Company  Shares,  as  contemplated  by this
         Agreement,  to be  subject  to  the  registration  requirements  of the
         Securities  Act as in  effect  on the date  hereof  and,  assuming  the
         representations  of  LILCO  contained  in  Section  6(h)  are  true and
         correct,  the  issuance,  sale  and  delivery  of  the  Company  Shares
         hereunder would be exempt from the registration and prospectus delivery
         requirements  of the  Securities  Act,  as in effect on the date hereof
         (and the  Company  shall  not take any  action  which  would  cause the
         issuance,  sale and delivery of the Company Shares  hereunder not to be
         exempt from such requirements), and (j) any


                                       -4


<PAGE>

         LILCO Shares  acquired  pursuant to this Agreement will be acquired for
         the Company's own account, for investment purposes only and will not be
         acquired by the Company with a view to the public distribution  thereof
         in violation of any applicable provision of the Securities Act.

                  6.  REPRESENTATIONS  AND WARRANTIES OF LILCO. LILCO represents
         and  warrants  to the  Company  that (a)  LILCO is a  corporation  duly
         organized,  validly existing and in good standing under the laws of the
         State of New York and has the  corporate  power and  authority to enter
         into this Agreement and to carry out its obligations hereunder, (b) the
         execution and delivery of this Agreement by LILCO and the  consummation
         by  LILCO  of the  transactions  contemplated  hereby  have  been  duly
         authorized by all necessary  corporate  action on the part of LILCO and
         no other  corporate  proceedings  on the part of LILCO are necessary to
         authorize  this  Agreement  or  any of  the  transactions  contemplated
         hereby,  (c) this  Agreement  has been duly  executed and  delivered by
         LILCO and  constitutes a valid and binding  obligation  of LILCO,  and,
         assuming this Agreement  constitutes a valid and binding  obligation of
         the Company, is enforceable against LILCO in accordance with its terms,
         (d)  prior to any  delivery  of LILCO  Shares in  consideration  of the
         purchase of Company Shares pursuant  hereto,  LILCO will have taken all
         necessary  corporate  action to authorize for issuance and to permit it
         to issue such LILCO  Shares,  all of which,  upon  their  issuance  and
         delivery  in  accordance  with  the  terms of this  Agreement,  will be
         validly   issued,   fully  paid  and   nonassessable,   and  to  render
         inapplicable  to the  receipt by the  Company  of the LILCO  Shares the
         provisions  of the NYBCL  referred to in Section  5.15 of the  Exchange
         Agreement, (e) upon any delivery of such LILCO Shares to the Company in
         consideration  of the purchase of Company Shares pursuant  hereto,  the
         Company  will  acquire  the LILCO  Shares free and clear of all claims,
         liens,  charges,  encumbrances  and  security  interests  of any nature
         whatsoever,  (f) except as described in Section  5.4(b) of the Exchange
         Agreement,  the execution and delivery of this  Agreement by LILCO does
         not, and the  consummation  by LILCO of the  transactions  contemplated
         hereby will not, violate, conflict with, or result in the breach of any
         provision of, or constitute a default (with or without  notice or lapse
         of time, or both) under,  or result in any Violation by LILCO or any of
         its  subsidiaries,  pursuant to (A) any provision of the certificate of
         incorporation  or by-laws of LILCO,  (B) any  provisions of any loan or
         credit agreement, note, mortgage,  indenture, lease, LILCO benefit plan
         or  other  agreement,   obligation,   instrument,  permit,  concession,
         franchise,  license or (C) any judgment,  order, decree,  statute, law,
         ordinance,  rule or regulation applicable to LILCO or its properties or
         assets, which Violation,  in the case of each of its clauses (B) and/or
         (C), would have a material adverse effect on LILCO and its subsidiaries
         taken as a whole,  (g) except as  described  in  Section  5.4(c) of the
         Exchange  Agreement or Section 1(b) or Section 3 hereof,  the execution
         and delivery of this Agreement by LILCO does not, and the  consummation
         by LILCO of the transactions  contemplated hereby will not, require any
         consent,  approval,  authorization  or permit  of,  or  filing  with or
         notification to, any Governmental  Authority and (h) any Company Shares
         acquired  upon  exercise  of the Company  Option  will be acquired  for
         LILCO's own account,  for investment purposes only and will not be, and
         the Company  Option is not being,  acquired by LILCO with a view to the
         public distribution thereof in violation of any applicable provision of
         the Securities Act.


                                       -5


<PAGE>

                  7.  CERTAIN REPURCHASES.

                  (a) LILCO PUT.  At the  request of LILCO by written  notice at
         any time during  which the Company  Option is  exercisable  pursuant to
         Section 2 (the  "REPURCHASE  PERIOD"),  the Company  (or any  successor
         entity  thereof) shall  repurchase from LILCO all or any portion of the
         Company Option,  at the price set forth in subparagraph  (i) below, or,
         at the request of LILCO by written notice at any time prior to December
         31,  1997  (provided  that such date shall be extended to June 30, 1998
         under the  circumstances  where the date after which  either  party may
         terminate  the  Exchange  Agreement  pursuant to Section  9.1(b) of the
         Exchange Agreement has been extended to June 30, 1998), the Company (or
         any successor  entity  thereof) shall  repurchase from LILCO all or any
         portion  of the  Company  Shares  purchased  by LILCO  pursuant  to the
         Company Option, at the price set forth in subparagraph (ii) below:

                           (i) the difference  between the "MARKET/OFFER  PRICE"
                  for shares of Company  Common Stock as of the date LILCO gives
                  notice of its intent to exercise its rights under this Section
                  7 (defined as the higher of (A) the price per share offered as
                  of such date pursuant to any tender or exchange offer or other
                  offer with  respect to a Business  Combination  which was made
                  prior to such date and not  terminated or withdrawn as of such
                  date (the  "OFFER  PRICE")  and (B) the Fair  Market  Value of
                  Company Common Stock as of such date (the "MARKET PRICE")) and
                  the Exercise Price, multiplied by the number of Company Shares
                  purchasable pursuant to the Company Option (or portion thereof
                  with  respect to which LILCO is  exercising  its rights  under
                  this Section 7), but only if the Market/Offer Price is greater
                  than the Exercise Price;

                         (ii)  the  product  of (x) the sum of (A) the  Exercise
                  Price paid by LILCO per Company Share acquired pursuant to the
                  Company Option and (B) the difference between the Market/Offer
                  Price and the  Exercise  Price,  but only if the  Market/Offer
                  Price is greater than the Exercise  Price,  and (y) the number
                  of Company Shares to be  repurchased  pursuant to this Section
                  7. For purposes of this clause (ii),  the Offer Price shall be
                  the highest  price per share  offered  pursuant to a tender or
                  exchange offer or other Business  Combination offer during the
                  Repurchase  Period  prior to the delivery by LILCO of a notice
                  of repurchase.

                  (b)  REDELIVERY OF LILCO SHARES.  If LILCO elected to purchase
         Company  Shares  pursuant to the exercise of the Company  Option by the
         issuance and delivery of LILCO Shares,  then the Company  shall,  if so
         requested by LILCO, in fulfillment of its obligation pursuant to clause
         (a) of Section 7(a)(ii)(x) (that is, with respect to the Exercise Price
         only  and  without  limitation  to its  obligation  to  pay  additional
         consideration under clause (b) of Section  7(a)(ii)(x)),  redeliver the
         certificate  for such  LILCO  Shares  to  LILCO,  free and clear of all
         liens, claims, damages,  charges and encumbrances of any kind or nature
         whatsoever;  provided,  however,  that if less than all of the  Company
         Shares  purchased  by LILCO  pursuant to the  Company  Option are to be
         repurchased  pursuant to this  Section 7, then LILCO shall issue to the
         Company a new certificate representing those LILCO Shares which are not
         due to be redelivered to


                                       -6


<PAGE>

         LILCO  pursuant to this  Section 7 as they  constituted  payment of the
         Exercise Price for the Company Shares not being repurchased.

                  (c)      PAYMENT AND REDELIVERY OF COMPANY OPTION OR
         SHARES.  In the event LILCO  exercises its rights under this Section 7,
         the Company shall, within 10 business days thereafter, pay the required
         amount  to  LILCO  in  immediately  available  funds  and  LILCO  shall
         surrender  to the  Company  the  Company  Option  or  the  certificates
         evidencing the Company Shares purchased by LILCO pursuant thereto,  and
         LILCO shall warrant that it owns the Company  Option or such shares and
         that the  Company  Option or such shares are then free and clear of all
         liens, claims, damages,  charges and encumbrances of any kind or nature
         whatsoever.

                  (d) LILCO  CALL.  If LILCO has  elected  to  purchase  Company
         Shares  pursuant to the exercise of the Company  Option by the issuance
         and delivery of LILCO Shares,  notwithstanding that LILCO may no longer
         hold any such  Company  Shares or that LILCO elects not to exercise its
         other rights  under this  Section 7, LILCO may require,  at any time or
         from time to time prior to December 31, 1997  (provided  that such date
         shall be extended to June 30,  1998 under the  circumstances  where the
         date after which either  party may  terminate  the  Exchange  Agreement
         pursuant to Section 9.1(b) of the Exchange  Agreement has been extended
         to June 30,  1998),  the Company to sell to LILCO any such LILCO Shares
         at the Fair Market Value that had been  attributed to such LILCO Shares
         pursuant  to Section 4 plus  interest  at the rate of 6.5% per annum on
         such  amount  from the Closing  Date  relating to the  exchange of such
         LILCO  Shares  pursuant  to  Section 4 to the  closing  date under this
         Section  7(d) less any  dividends on such LILCO Shares paid during such
         period or  declared  and  payable to  stockholders  of record on a date
         during such period.

                  (e) REPURCHASE  PRICE REDUCED AT LILCO'S OPTION.  In the event
         the  repurchase  price  specified  in Section  7(a) would  subject  the
         purchase of the Company Option or the Company Shares purchased by LILCO
         pursuant to the  Company  Option to a vote of the  shareholders  of the
         Company pursuant to Section 513(e) of the NYBCL, then LILCO may, at its
         election,  reduce the repurchase  price to an amount which would permit
         such repurchase without the necessity for such a shareholder vote.

                  8.       RESTRICTIONS ON TRANSFER.

                  (a)  RESTRICTIONS ON TRANSFER.  Prior to the Expiration  Date,
         neither  party shall,  directly or  indirectly,  by operation of law or
         otherwise,  sell,  assign,  pledge, or otherwise dispose of or transfer
         any Restricted Shares  beneficially owned by such party, other than (i)
         pursuant  to  Section 7, or (ii) in  accordance  with  Section  9(b) or
         Section 10.

                  (b) PERMITTED SALES. Following the termination of the Exchange
         Agreement,  a party shall be  permitted to sell any  Restricted  Shares
         beneficially  owned by it if such sale is made  pursuant to a tender or
         exchange  offer that has been  approved or  recommended,  or  otherwise
         determined to be fair to and in the best interests of the


                                       -7


<PAGE>

         shareholders  of the other  party,  by a majority of the members of the
         Board of Directors of such other party which  majority  shall include a
         majority of directors who were directors  prior to the  announcement of
         such tender or exchange offer.

                  9.  REGISTRATION  RIGHTS.  Following  the  termination  of the
         Exchange  Agreement,  each party hereto (a "DESIGNATED  HOLDER") may by
         written  notice  (the  "REGISTRATION  NOTICE")  to the other party (the
         "REGISTRANT")  request the  Registrant to register under the Securities
         Act all or any part of the Restricted Shares beneficially owned by such
         Designated  Holder (the  "REGISTRABLE  SECURITIES")  pursuant to a bona
         fide  firm  commitment   underwritten  public  offering  in  which  the
         Designated  Holder  and  the  underwriters   shall  effect  as  wide  a
         distribution   of  such   Registrable   Securities   as  is  reasonably
         practicable  and shall use their best  efforts  to  prevent  any person
         (including  any Group (as used in Rule 13d-5 under the  Exchange  Act))
         and its affiliates  form  purchasing  through such offering  Restricted
         Shares  representing  more than 1% of the outstanding  shares of common
         stock  of  the  Registrant  on a  fully  diluted  basis  (a  "PERMITTED
         OFFERING").   The  Registration  Notice  shall  include  a  certificate
         executed  by  the   Designated   Holder  and  its   proposed   managing
         underwriter,  which underwriter shall be an investment  banking firm of
         nationally  recognized standing (the "MANAGER"),  stating that (i) they
         have a good faith intention to commence  promptly a Permitted  Offering
         and (ii) the  Manager in good faith  believes  that,  based on the then
         prevailing market  conditions,  it will be able to sell the Registrable
         Securities  at a per share price equal to at least 80% of the then Fair
         Market  Value  of  such  shares.  The  Registrant  (and/or  any  person
         designated  by  the   Registrant)   shall  thereupon  have  the  option
         exercisable by written notice delivered to the Designated Holder within
         10  business  days  after  the  receipt  of  the  Registration  Notice,
         irrevocably  to agree to  purchase  all or any part of the  Registrable
         Securities  proposed  to be so sold  for cash at a price  (the  "OPTION
         PRICE")  equal  to  the  product  of  (i)  the  number  of  Registrable
         Securities to be so purchased by the  Registrant and (ii) the then Fair
         Market  Value  of  such  shares.   Any  such  purchase  of  Registrable
         Securities by the  Registrant  (or its designee)  hereunder  shall take
         place at a closing to be held at the principal executive offices of the
         Registrant or at the offices of its counsel at any reasonable  date and
         time  designated by the Registrant  and/or such designee in such notice
         within 20 business days after delivery of such notice.  Any payment for
         the shares to be  purchased  shall be made by  delivery  at the time of
         such closing of the Option Price in immediately available funds.

                  If the  Registrant  does not  elect  to  exercise  its  option
         pursuant to this Section 10 with respect to all Registrable Securities,
         it shall use its best  efforts to effect,  as promptly as  practicable,
         the   registration   under  the  Securities  Act  of  the   unpurchased
         Registrable Securities proposed to be so sold; provided,  however, that
         (i) neither  party shall be entitled to more than an  aggregate  of two
         effective  registration  statements  hereunder and (ii) the  Registrant
         will not be required to file any such registration statement during any
         period of time (not to exceed 40 days after such request in the case of
         clause (A) below or 90 days in the case of  clauses  (B) and (C) below)
         when  (A)  the  Registrant  is in  possession  of  material  non-public
         information  which it reasonably  believes  would be  detrimental to be
         disclosed  at  such  time  and,  in  the  opinion  of  counsel  to  the
         Registrant,


                                       -8


<PAGE>

         such information would have to be disclosed if a registration statement
         were filed at that  time:  (B) the  Registrant  is  required  under the
         Securities Act to include audited  financial  statements for any period
         in such  registration  statement and such financial  statements are not
         yet available for inclusion in such registration  statement; or (C) the
         Registrant   determines,   in  its  reasonable   judgment,   that  such
         registration  would interfere with any financing,  acquisition or other
         material transaction involving the Registrant or any of its affiliates.
         The  Registrant  shall use its  reasonable  best  efforts  to cause any
         Registrable  Securities  registered  pursuant to this  Section 10 to be
         qualified  for sale  under  the  securities  or  Blue-Sky  laws of such
         jurisdictions as the Designated Holder may reasonably request and shall
         continue  such   registration  or   qualification  in  effect  in  such
         jurisdiction;  provided,  however,  that the  Registrant  shall  not be
         required to qualify to do business in, or consent to general service of
         process in, any jurisdiction by reason of this provision.

                  The  registration  rights  set  forth in this  Section  10 are
         subject to the condition that the  Designated  Holder shall provide the
         Registrant  with  such   information  with  respect  to  such  holder's
         Registrable  Securities,  the plans for the distribution  thereof,  and
         such  other  information  with  respect  to  such  holder  as,  in  the
         reasonable  judgment of counsel for the  Registrant,  is  necessary  to
         enable the  Registrant  to include in such  registration  statement all
         material  facts required to be disclosed with respect to a registration
         thereunder.

                  A  registration  effected  under  this  Section  10  shall  be
         effected at the Registrant's expense, except for underwriting discounts
         and  commissions  and the  fees  and the  expenses  of  counsel  to the
         Designated Holder, and the Registrant shall provide to the underwriters
         such  documentation  (including  certificates,  opinions of counsel and
         "comfort"  letters from auditors as are  customary in  connection  with
         underwritten  public  offerings  as such  underwriters  may  reasonably
         require.  In connection with any such  registration,  the parties agree
         (i) to  indemnify  each  other and the  underwriters  in the  customary
         manner,  (ii) to  enter  into an  underwriting  agreement  in form  and
         substance  customary for transactions of such type with the Manager and
         the other underwriters participating in such offering and (iii) to take
         all further actions which shall be reasonably  necessary to effect such
         registration  and sale  (including,  if the Manager deems it necessary,
         participating in road-show presentations).

                  The  Registrant  shall be entitled to include (at its expense)
         additional  shares  of its  common  stock  in a  registration  effected
         pursuant  to this  Section  10 only if and to the  extent  the  Manager
         determines that such inclusion will not adversely  affect the prospects
         of success of such offering.

                  10.  ADJUSTMENT  UPON  CHANGES  IN   CAPITALIZATION.   Without
         limitation  to  any  restriction  on  the  Company  contained  in  this
         Agreement or in the Exchange  Agreement,  in the event of any change in
         Company Common Stock by reason of stock  dividends,  splitups,  mergers
         (other   than  the   Binding   Share   Exchanges),   recapitalizations,
         combinations,  exchange  of shares or the like,  the type and number of
         shares or securities  subject to the Company  Option,  and the purchase
         price per share


                                       -9


<PAGE>

         provided  in Section 1, shall be adjusted  appropriately  to restore to
         LILCO its rights  hereunder,  including  the right to purchase from the
         Company (or its successors) shares of Company Common Stock representing
         19.9%  of the  Outstanding  Company  Common  Stock  for  the  aggregate
         Exercise Price  calculated as of the date of this Agreement as provided
         in Section 1.

                  11. RESTRICTIVE LEGENDS. Each certificate  representing shares
         of Company Common Stock issued to LILCO hereunder, and LILCO Shares, if
         any,  delivered to the Company at a Closing,  shall include a legend in
         substantially the following form:

                  THE SECURITIES  REPRESENTED BY THIS  CERTIFICATE HAVE NOT BEEN
         REGISTERED  UNDER THE  SECURITIES  ACT OF 1933, AS AMENDED,  AND MAY BE
         REOFFERED OR SOLD ONLY IF SO  REGISTERED  OR IF AN EXEMPTION  FROM SUCH
         REGISTRATION  IS  AVAILABLE.   SUCH  SECURITIES  ARE  ALSO  SUBJECT  TO
         ADDITIONAL  RESTRICTIONS  ON TRANSFER AS SET FORTH IN THE STOCK  OPTION
         AGREEMENT,  DATED AS OF  DECEMBER  29,  1996,  A COPY OF  WHICH  MAY BE
         OBTAINED FROM THE ISSUER UPON REQUEST.

         It is  understood  and agreed  that:  (i) the  reference  to the resale
         restrictions of the Securities Act in the above legend shall be removed
         by delivery of  substitute  certificates(s)  without such  reference if
         LILCO or the Company,  as the case may be, shall have  delivered to the
         other  party a copy of a letter  from the staff of the  Securities  and
         Exchange  Commission,  or an opinion of counsel,  in form and substance
         satisfactory  to the other party, to the effect that such legend is not
         required for purposes of the Securities  Act; (ii) the reference to the
         provisions  to this  Agreement  in the above legend shall be removed by
         delivery of  substitute  certificate(s)  without such  reference if the
         shares have been sold or transferred in compliance  with the provisions
         of this  Agreement  and under  circumstances  that do not  require  the
         retention of such  reference;  and (iii) the legend shall be removed in
         its entirety if the  conditions in the  preceding  clauses (i) and (ii)
         are both satisfied. In addition, such certificates shall bear any other
         legend as may be required by law. Certificates representing shares sold
         in a  registered  public  offering  pursuant to Section 10 shall not be
         required to bear the legend set forth in Section 12.

                  12.   BINDING   EFFECT;   NO   ASSIGNMENT;   NO  THIRD   PARTY
         BENEFICIARIES.  This  Agreement  shall be binding upon and inure to the
         benefit of the  parties  hereto  and their  respective  successors  and
         permitted assigns.  Except as expressly provided for in this Agreement,
         neither  this  Agreement  nor the rights or the  obligations  of either
         party  hereto are  assignable,  except by operation of law, or with the
         written  consent  of  the  other  party.   Nothing  contained  in  this
         Agreement,  express or  implied,  is intended to confer upon any person
         other than the parties hereto and their  respective  permitted  assigns
         any  rights or  remedies  of any  nature  whatsoever  by reason of this
         Agreement. Any Restricted Shares sold by a party in compliance with the
         provisions of Section 10 shall, upon consummation of such sale, be free
         of the  restrictions  imposed  with  respect  to  such  shares  by this
         Agreement, unless and until such party shall


                                       -10


<PAGE>

         repurchase or otherwise become the beneficial owner of such shares, and
         any transferee of such shares shall not be entitled to the registration
         rights of such party.

                  13. SPECIFIC PERFORMANCE. The parties recognize and agree that
         if for any  reason  any of the  provisions  of this  Agreement  are not
         performed in  accordance  with their  specific  terms or are  otherwise
         breached,  immediate and irreparable harm or injury would be caused for
         which money damages would not be an adequate remedy. Accordingly,  each
         party agrees that, in addition to other remedies, the other party shall
         be entitled to an  injunction  restraining  any violation or threatened
         violation of the  provisions of this  Agreement.  In the event that any
         action  should be brought in equity to enforce  the  provisions  of the
         Agreement,  neither party will allege, and each party hereby waives the
         defense, that there is adequate remedy at law.

                  14. ENTIRE AGREEMENT.  This Agreement,  the LILCO Stock Option
         Agreement,  the  Confidentiality  Agreement and the Exchange  Agreement
         (including  the exhibits and schedules  thereto)  constitute the entire
         agreement  among the parties with respect to the subject  matter hereof
         and   thereof   and   supersede   all  other   prior   agreements   and
         understandings, both written and oral, among the parties or any of them
         with respect to the subject matter hereof and thereof.

                  15.  FURTHER  ASSURANCES.  Each party will execute and deliver
         all such further  documents and  instruments  and take all such further
         action as may be  necessary  in order to  consummate  the  transactions
         contemplated hereby.

                  16.  VALIDITY.  The  invalidity  or  unenforceability  of  any
         provisions  of  this  Agreement   shall  not  affect  the  validity  or
         enforceability  of the other provisions of this Agreement,  which shall
         remain  in full  force  and  effect.  In the  event  any court or other
         competent  authority holds any provisions of this Agreement to be null,
         void or unenforceable, the parties hereto shall negotiate in good faith
         the execution and delivery of an amendment to this  Agreement in order,
         as nearly as possible,  to effectuate,  to the extent permitted by law,
         the intent of the parties hereto with respect to such provision and the
         economic  effects  thereof.  If  for  any  reason  any  such  court  or
         regulatory agency determines that LILCO is not permitted to acquire, or
         the Company is not permitted to  repurchase  pursuant to Section 7, the
         full  number of shares of Company  Common  Stock  provided in Section 1
         hereof (as the same may be  adjusted),  it is the express  intention of
         the  Company to allow  LILCO to acquire  or to require  the  Company to
         repurchase such lesser number of shares as may be permissible,  without
         any amendment or modification  hereof.  Each party agrees that,  should
         any  court or other  competent  authority  hold any  provision  of this
         Agreement or part hereof to be null,  void or  unenforceable,  or order
         any  party to take any  action  inconsistent  herewith,or  not take any
         action  required  herein,  the other  party  shall not be  entitled  to
         specific  performance  of such provision or part hereof or to any other
         remedy,  including but not limited to money damages,  for breach hereof
         or of any  other  provision  of this  Agreement  or part  hereof as the
         result of such holding or order.


                                                        -11


<PAGE>

                  17.  NOTICES.  All notices and other  communication  hereunder
         shall  be in  writing  and  shall  be  deemed  given  if (i)  delivered
         personally,  or (ii) sent by reputable  overnight  courier service,  or
         (iii)  telecopied  (which is confirmed),  or (iv) five days after being
         mailed by registered or certified  mail (return  receipt  requested) to
         the parties at the following  addresses (or at such other address for a
         party as shall be specified by like notice):

                           A.       If to LILCO, to:

                                    Long Island Lighting Company
                                    175 East Old County Road
                                    Hicksville, New York  11801
                                    Attention: Chief Executive Officer

                                    with a copy to:

                                    Kramer, Levin, Naftalis & Frankel
                                    919 Third Avenue
                                    New York, New York  10022
                                    Attention: Thomas E. Constance

                           B.       If to the Company, to:

                                     The Brooklyn Union Gas Company
                                     One Metrotech Center
                                     Brooklyn, New York 11201-3850
                                     Attention: Chief Executive Officer

                                     with a copy to:
 
                                     Wachtell, Lipton, Rosen & Katz
                                     51 West 52nd Street
                                     New York, New York  10019
                                     Attention:  Seth A. Kaplan

                  18.  GOVERNING LAW;  CHOICE OF FORUM.  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  entirely
         within such State and without  regard to its choice of law  principles.
         Each of the  parties  hereto  (a)  consents  to  submit  itself  to the
         personal  jurisdiction of any federal court located in the State of New
         York or any New York state court in the event any dispute arises out of
         this  Agreement  or  any  of  the  transactions  contemplated  by  this
         agreement,  (b) agrees  that it will not attempt to deny or defeat such
         personal  jurisdiction  by motion or other  request  for leave from any
         such court and (c) agrees that it will not bring any action relating to
         this  Agreement  or  any  of  the  transactions  contemplated  by  this
         Agreement in any court other than a federal  court sitting in the State
         of New York or a New York state court.


                                       -12


<PAGE>

                  19. INTERPRETATION. When a reference is made in this Agreement
         to a Section  such  reference  shall be to a Section of this  Agreement
         unless otherwise indicated. Whenever the words "include", "includes" or
         "including"  are used in this  Agreement,  they  shall be  deemed to be
         followed by the words "without  limitation".  The descriptive  headings
         herein are  inserted  for  convenience  of  reference  only and are not
         intended  to be part of or to affect the meaning or  interpretation  of
         this Agreement.

                  20.  COUNTERPARTS.  This  Agreement  may  be  executed  in two
         counterparts, each of which shall be deemed to be an original, but both
         of which, taken together, shall constitute one and the same instrument.

                  21. EXPENSES. Except as otherwise expressly provided herein or
         in  the  Exchange  Agreement,   all  costs  and  expenses  incurred  in
         connection with the  transactions  contemplated by this Agreement shall
         be paid by the party incurring such expenses.

                  22. AMENDMENTS;  WAIVER.  This Agreement may be amended by the
         parties hereto and the terms and  conditions  hereof may be waived only
         by an  instrument  in writing  signed on behalf of each of the  parties
         hereto,  or, in the case of a waiver, by an instrument signed on behalf
         of the party waiving compliance.

                  23.  EXTENSION OF TIME PERIODS.  The time periods for exercise
         of certain rights under  Sections 2, 6 and 7 shall be extended:  (i) to
         the  extent  necessary  to  obtain  all  regulatory  approvals  for the
         exercise  of  such  rights,  and for the  expiration  of all  statutory
         waiting  periods;  and  (ii)  to the  extent  necessary  to  avoid  any
         liability  under  Section  16(b) of the  Exchange Act by reason of such
         exercise.

                  24. REPLACEMENT OF COMPANY OPTION. Upon receipt by the Company
         of  evidence  reasonably   satisfactory  to  it  of  the  loss,  theft,
         destruction or mutilation of this Agreement,  and (in the case of loss,
         theft or destruction) of reasonably satisfactory  indemnification,  and
         upon surrender and  cancellation of this Agreement,  if mutilated,  the
         Company  will  execute  and deliver a new  Agreement  of like tenor and
         date.


                                       -13


<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their respective duly authorized officers as of the date first above
written.

                                  LONG ISLAND LIGHTING COMPANY


                                  By: /s/ William J. Catacosinos
                                      --------------------------
                                       Name:  Dr. William J. Catacosinos
                                       Title:  Chief Executive Officer



                                  THE BROOKLYN UNION GAS COMPANY


                                  By: /s/ Robert B. Catell
                                     ------------------------
                                       Name:  Robert B. Catell
                                       Title:  Chief Executive Officer


                                       -14



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