CONDENSED CONSOLIDATED BALANCE SHEET
                                  (IN THOUSANDS OF DOLLARS)

                                                         September    30,      December    31,
                                                         1999                  1998
                                                         -----------------     ----------------

                                                         (Unaudited)           (Audited)
ASSETS

CURRENT ASSETS
                                                                     
    Cash and temporary cash investments              $   129,899           $   942,776
    Customer accounts receivable                         174,865               320,836
    Other accounts receivable                            200,519               230,479
    Allowance for uncollectible accounts                 (23,300)              (20,026)
    Special deposits                                     90,634                145,684
    Gas in storage, at average cost                      163,318               145,277
    Materials and supplies, at average cost              74,948                74,193
    Other                                                182,096               72,818
                                                         -----------------     ----------------

                                                         992,979               1,912,037
                                                         -----------------     ----------------


EQUITY INVESTMENTS                                       325,929               289,193
                                                         -----------------     ----------------

PROPERTY
    Electric                                             1,337,563             1,109,199
    Gas                                                  3,373,802             3,257,726
    Other                                                368,235               345,007
    Accumulated depreciation                             (1,563,592)           (1,480,038)
    Gas exploration and production, at cost              1,096,583             994,104
    Accumulated depletion                                (500,154)             (447,733)
                                                         -----------------     ----------------

                                                         4,112,437             3,778,265
                                                         -----------------     ----------------


DEFERRED CHARGES
    Regulatory assets                                    313,837               279,524
    Goodwill                                             251,023               254,040
    Other                                                361,675               382,043
                                                         -----------------     ----------------

                                                         926,535               915,607
                                                         -----------------     ----------------

TOTAL ASSETS                                         $   6,357,880         $   6,895,102
                                                         =================     ================

   See accompanying notes to the Condensed Consolidated Financial Statements.
                                       55










                             CONDENSED CONSOLIDATED BALANCE SHEET
                                  (IN THOUSANDS OF DOLLARS)


                                                         September 30,         December 31,
                                                         1999                  1998
                                                         -----------------     ----------------
                                                         (Unaudited)           (Audited)
LIABILITIES AND CAPITALIZATION
CURRENT LIABILITIES
                                                                     
    Current maturities of long-term debt             $   1,000            $    398,000
    Current redemption of preferred stock                363,000               -
    Accounts payable and accrued expenses                451,845               519,288
    Notes payable                                        103,950               -
    Dividends payable                                    61,461                66,232
    Taxes accrued                                        6,079                 69,742
    Customer deposits                                    32,021                29,774
    Interest accrued                                     8,918                 19,965
                                                         -----------------     ----------------
                                                         1,028,274             1,103,001
                                                         -----------------     ----------------

DEFERRED CREDITS AND OTHER LIABILITIES
    Regulatory liabilities                               29,129                27,854
    Deferred federal income tax                          197,978               71,549
    Operating reserves                                   494,681               457,459
    Other                                                82,815                75,740
                                                         -----------------     ----------------
                                                         804,603               632,602
                                                         -----------------     ----------------

CAPITALIZATION
    Common stock, $.01 par value, authorized
      450,000,000 shares; outstanding 134,214,473
       and 144,628,654 shares stated at                  2,973,388             2,973,388
    Retained Earnings                                    438,896               474,188
    Accumulated foreign currency adjustment              2,502                 (952)
    Treasury stock purchased                             (712,888)             (423,716)
                                                         -----------------     ----------------
      Total common equity                                2,701,898             3,022,908
    Preferred stock                                      84,359                 447,973
    Long-term debt                                       1,663,040             1,619,067
                                                         -----------------     ----------------
TOTAL CAPITALIZATION                                     4,449,297             5,089,948
                                                         -----------------     ----------------

MINORITY INTEREST IN SUBSIDIARY COMPANY                  75,706                69,551
                                                         -----------------     ----------------
TOTAL LIABILITIES AND CAPITALIZATION                 $   6,357,880         $   6,895,102
                                                         =================     ================


   See accompanying notes to the Condensed Consolidated Financial Statements.

                                       56






                          CONDENSED CONSOLIDATED STATEMENT OF INCOME
                                         (Unaudited)
                     (IN THOUSANDS OF DOLLARS, EXCEPT PER SHARE AMOUNTS)

                                                         Three Months Ended           Nine Months Ended
                                                           September 30,                 September 30,
                                                        1999         1998             1999          1998
                                                        ---------    ----------       ----------    ---------
REVENUES
                                                                                     
Gas Distribution                                    $   208,572   $  203,241       $  1,208,254  $  629,516
Gas Exploration and Production                          42,081       30,545           103,622       42,258
Electric Services                                       241,259      176,358          606,552       244,723
Electric Distribution                                   -            -                -             885,693
Energy Related Services                                 46,557       24,437           124,675       30,823
                                                        ---------    ----------       ----------    ---------
Total Revenues                                          538,469      434,581          2,043,103     1,833,013
                                                        ---------    ----------       ----------    ---------
OPERATING EXPENSES
Purchased gas                                           62,560       56,305           470,633       247,895
Fuel and purchased power                                 -           -                -             257,786
Operations and maintenance                              298,679      259,895          793,197       581,474
Depreciation, depletion and amortization                63,130       59,202           180,698       147,401
Electric regulatory amortizations                       -            -                -             (79,875)
Operating taxes                                         77,317       77,824           258,355       292,704
                                                        ---------    ----------       ----------    ---------
Total Operating Expenses                                501,686      453,226          1,702,883     1,447,385
                                                        ---------    ----------       ----------    ---------
OPERATING INCOME                                        36,783       (18,645)         340,220       385,628
                                                        ---------    ----------       ----------    ---------
OTHER INCOME AND (DEDUCTIONS)
Income from equity investments                          4,268        3,315            9,749         3,108
Interest income                                         1,884       24,769           20,673        41,378
Minority interest                                       (3,035)       (750)          (5,226)    4   (1,318)
Other                                                   1,317          450            3,183          7,837
                                                        ---------    ----------       ----------    ---------
Total Other Income                                      4,434        27,824           28,379        51,005
                                                        ---------    ----------       ----------    ---------
INCOME BEFORE INTEREST CHARGES AND INCOME TAXES         41,217       9,179            368,599       436,633
                                                        ---------    ----------       ----------    ---------
INTEREST CHARGES                                        26,661       30,945           95,001        207,797
                                                        ---------    ----------       ----------    ---------
INCOME TAXES
Current                                                 (23,111)     (9,853)          (14,886)      133,904
Deferred                                                28,651       5,743            113,258       (40,601)
                                                        ---------    ----------       ----------    ---------
Total Income Taxes                                      5,540        (4,110)          98,372        93,303
                                                        ---------    ----------       ----------    ---------
NET INCOME                                              9,016        (17,656)         175,226       135,533
Preferred stock dividend requirements                   8,688        8,694            26,067        32,857
                                                        ---------    ----------       ----------    ---------
EARNINGS FOR COMMON STOCK                           $   328       $  (26,350)      $  149,159    $  102,676
Foreign Currency Adjustment                             (2,281)      860              3,454         (569)
                                                        =========    ==========       ==========    =========
COMPREHENSIVE INCOME                                $   (1,953)   $  (25,490)      $  152,613    $  102,107
                                                        =========    ==========       ==========    =========
AVERAGE COMMON SHARES OUTSTANDING (000)                 136,506      157,328          140,079       137,720
BASIC AND DILUTED EARNINGS PER COMMON SHARE         $   0.00      $  (0.17)        $  1.06       $  0.75
                                                        =========    ==========       ==========    =========

   See accompanying notes to the Condensed Consolidated Financial Statements.
                                       57







                        CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS
                                         (Unaudited)
                                  (IN THOUSANDS OF DOLLARS)

                                                  THREE          Three            NINE
                                                  MONTHS         Months           MONTHS        Nine Months
                                                  ENDED          Ended            ENDED         Ended
                                                  SEPTEMBER      September        SEPTEMBER     September
                                                  30, 1999       30, 1998         30, 1999      30, 1998
                                                  -------------  -------------    ------------  -------------
OPERATING ACTIVITIES
                                                                                    
Net Income                                        $  9,016       $  (17,656)      $ 175,226     $  135,533
ADJUSTMENTS TO RECONCILE NET INCOME TO NET CASH
PROVIDED BY (USED IN) OPERATING ACTIVITIES
Depreciation, depletion and amortization
Electric regulatory amortizations                    63,130         59,202          180,698        147,401
Deferred income tax                                  -              -                 -            (79,875)
Income from equity investments                       28,651         5,743           113,258        (40,601)
Dividends from equity investments                    (4,268)        (3,315)         (9,749)        (3,108)
CHANGES IN ASSETS AND LIABILITIES                    2,079          2,078           6,375          2,078
Accounts receivable
Materials and supplies, fuel oil and gas in          9,141          58,973          155,538        141,068
storage                                              (67,249)       (52,244)        (18,997)       14,614
Accounts payable and accrued expenses                17,207         17,973          (143,858)      (71,679)
Interest accrued                                     (6,403)        (20,741)        (11,050)       35,565
Special deposits                                     17,743         (101,311)       55,050         (63,723)
Pensions and other post retirement benefits          -               -              -              (283,774)
Other                                                (25,911)       (75,546)        (59,437)       (173,344)
                                                     -----------    ----------      -----------    ----------
Net Cash Provided by (Used in) Operating
Activities                                           43,136         (126,844)       443,054        (239,845)
                                                     -----------    ----------      -----------    ----------
INVESTING ACTIVITIES
Capital expenditures                                 (138,307)      (114,153)       (512,257)      (270,088)
Net cash from KeySpan Acquisition                    -              -               -              165,168
Net proceeds from LIPA Transaction                   -              -               -              2,314,588
Other                                                21,222         (4,098)         10,015         (21,777)
                                                     -----------    ----------      -----------    ----------
Net Cash (Used in) Provided by Investing
Activities                                           (117,085)      (118,251)       (502,242)      2,187,891
                                                     -----------    ----------      -----------    ----------
FINANCING ACTIVITIES
Proceeds from sale of common stock                   -              6,536           -              17,604
Treasury stock purchased                             (166,440)      (101,483)       (289,172)      (101,483)
Issuance of preferred stock                          -              -               -              75,000
Notes payable                                        103,950        -               103,950        -
Issuance of long-term debt                           25,523         3,000           40,523         3,000
Payment of long-term debt                            -              -               (397,000)      (100,000)
Preferred stock dividends paid                       (8,688)        (8,682)         (26,067)       (34,555)
Common stock dividends paid                          (57,692)       (69,081)        (185,375)      (213,466)
Other                                                (100)          32              (548)          (17,265)
                                                     -----------    ----------      -----------    ----------
Net Cash (Used in) Financing Activities              (103,447)      (169,678)       (753,689)      (371,165)
                                                     -----------    ----------      -----------    ----------
Net (Decrease) or Increase in Cash and Cash
Equivalents                                          (177,396)      (414,773)       (812,877)      1,576,881
                                                     ===========    ==========      ===========    ==========
Cash and cash equivalents at beginning of period      307,295        2,171,649       942,776        179,995
Net (Decrease or Increase in cash and cash
equivalents                                       $  (177,396)   $  (414,773)     $ (812,877)   $  1,576,881
                                                     -----------    ----------      -----------    ----------
Cash and Cash Equivalents at End of Period        $  129,899     $  1,756,876     $ 129,899     $  1,756,876
                                                     ===========    ==========      ===========    ==========



   See accompanying notes to the Condensed Consolidated Financial Statements.

                                       58







                     NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS


1. ORGANIZATION OF THE COMPANY

     KeySpan  Corporation,  d/b/a  KeySpan  Energy (the  "Company"),  a New York
     corporation, is the successor to Long Island Lighting Company ("LILCO"), as
     a  result  of  the  transaction   with  the  Long  Island  Power  Authority
     ("LIPA")and   following  the  acquisition  of  KeySpan  Energy  Corporation
     ("KSE"). The Company is a "predominately intrastate" public utility holding
     company exempt from most of the  provisions of the Public  Utility  Holding
     Company Act of 1935, as amended.

     On May 28,  1998,  the Company  completed  two business  combinations  as a
     result of which it (i) became the  successor  operator  of the  non-nuclear
     electric  generating  facilities,  gas  distribution  operations and common
     plant formerly owned by LILCO and entered into long-term service agreements
     to operate  the  electric  transmission  and  distribution  ("T&D")  system
     acquired  by LIPA (the "LIPA  Transaction");  and (ii)  acquired  KSE,  the
     parent  company of The Brooklyn  Union Gas Company  ("Brooklyn  Union")(the
     "KeySpan Acquisition").

     With the  exception  of a small  portion of Queens  County,  the  Company's
     subsidiaries are the only providers of gas distribution services in the New
     York City  counties  of Kings,  Richmond  and  Queens  and the Long  Island
     counties of Nassau and Suffolk.  Brooklyn Union  provides gas  distribution
     services to customers in the New York City boroughs of Brooklyn, Queens and
     Staten  Island,  and KeySpan Gas East  Corporation  d/b/a Brooklyn Union of
     Long  Island  ("Brooklyn  Union of Long  Island"),  a  Company  subsidiary,
     provides gas distribution services to customers in the Long Island counties
     of Nassau and Suffolk and the Rockaway Peninsula of Queens County.

     In addition,  Company subsidiaries operate the electric T&D system owned by
     LIPA,  own and  sell  capacity  and  energy  to  LIPA  from  the  Company's
     generating  facilities  located on Long Island and manage fuel supplies for
     LIPA to fuel  the  Company's  Long  Island  generating  facilities  through
     long-term  service  contracts  that  range  from  eight to  fifteen  years.
     Moreover,  Company  subsidiaries  own, lease and operate the 2,168 megawatt
     Ravenswood electric generation facility, ("Ravenswood Facility") located in
     Long  Island  City,  Queens.  (See  Note 10  "Contractual  Obligations  and
     Contingencies"  for a description  of the  Ravenswood  transaction.)

     Other  Company  subsidiaries  are involved in gas and oil  exploration  and
     production;  wholesale  and retail gas and electric  marketing;  appliance,
     heating,  ventilation and air conditioning  services;  large  energy-system
     ownership,   installation  and  management;   and  electric  infrastructure
     construction. Further, certain subsidiaries have investments in natural gas
     pipelines and gas distribution facilities; midstream natural gas processing
     and  gathering  facilities  and gas storage  facilities,  domestically  and
     internationally.   (See  Note  9   "Business   Segments"   for   additional
     information.)


2. BASIS OF PRESENTATION

     The financial statements presented herein reflect the results of operations
     of the  consolidated  Company for the three and nine months ended September
     30, 1999,  as well as for the three months ended  September  30, 1998.  For
     financial  reporting  purposes,  LILCO  is  deemed  the  acquiring  company
     pursuant to a purchase  accounting  transaction  in which KSE was acquired.
     Consequently, the financial statements presented herein for the nine months
     ended  September  30,  1998  reflect  the  results  of  operations  of  the
     consolidated  Company from May 29, 1998 through September 30, 1998. Periods
     prior to May 29, 1998, (i.e.,  January 1, 1998 through May 28, 1998)reflect
     results of  operations  of LILCO  only.  Since the  acquisition  of KSE was
     accounted for as a purchase,  purchase  accounting  adjustments,  including
     goodwill, have been reflected in the financial statements included herein.

     In the  opinion  of  the  Company,  the  accompanying  unaudited  Condensed
     Consolidated  Financial  Statements  contain all  adjustments  necessary to
     present  fairly the  financial  position of the Company as of September 30,
     1999,  and the results of its  operations  and cash flows for the three and
     nine months ended  September 30, 1999 and 1998.  Certain  reclassifications
     were made to conform  prior period  financial  statements  with the current
     period financial statement presentation.  Other than as noted,  adjustments
     were of a normal, recurring nature.


3. REVENUES

     The Gas  Distribution  segment of the  Company is  influenced  by  seasonal
     weather conditions.  Annual gas revenues are substantially  realized during
     the  heating  season  (November  1 to April  30) as a result  of the  large
     proportion of heating  sales,  primarily  residential,  compared with total
     sales.  Accordingly,  results of operations for gas distribution operations
     historically  are most  favorable  in the three months ended March 31, with
     results of operations  being next most  favorable in the three months ended
     December  31.  Results  for  the  quarter  ended  June  30  are  marginally
     profitable  or  unprofitable,  and losses  are  generally  incurred  in the
     quarter ended September 30.

     The Company's gas  distribution  subsidiaries  each operate under a utility
     tariff  that  contains  a weather  normalization  adjustment  that  largely
     offsets  shortfalls or excesses of firm net revenues  (i.e.,  revenues less
     gas costs and revenue taxes) during a heating season due to variations from
     normal weather.

     Electric  Services  revenues  are  derived  from  billings  to LIPA for the
     management  and operation of LIPA's T&D system,  electric  generation,  and
     fuel management. (For a description of the various services agreements with
     LIPA,  see the  Company's  Annual  Report on Form  10-K for the  transition
     period  ended  December  31,  1998.) In addition,  electric  revenues  also
     include  revenues  from the  Ravenswood  Facility  from  June  18,  1999 to
     September  30,  1999.  Revenues  from  electric  generation  generally  are
     unaffected by weather  variations  since  virtually all costs of production
     are  recovered in fixed fee billings to LIPA and Con Edison,  the Company's
     electric generation customers.

     Prior to the LIPA  Transaction,  electric  revenues were comprised of cycle
     billings rendered to residential,  commercial and industrial  customers and
     the accrual of electric  revenues  for services  rendered to customers  not
     billed at month-end.  In addition,  LILCO's rate  structure  provided for a
     revenue reconciliation mechanism which eliminated the impact on earnings of
     electric sales that were above or below the levels reflected in rates.


4.   GAS EXPLORATION AND PRODUCTION

     The Houston  Exploration  Company  ("THEC"),  a 64% owned subsidiary of the
     Company which is engaged in gas and oil exploration  and  production,  uses
     the full cost method of  accounting  for its  investment in natural gas and
     oil  properties.  Under the full cost  method of  accounting,  all costs of
     acquisition,  exploration  and  development of natural gas and oil reserves
     are  capitalized  into  a  "full  cost  pool".  To  the  extent  that  such
     capitalized   costs  (net  of  accumulated   depreciation,   depletion  and
     amortization)  less deferred  taxes,  exceed the present value (using a 10%
     discount  rate) of estimated  future net cash flows from proved natural gas
     and  oil  reserves  and  the  lower  of cost  or  fair  value  of  unproved
     properties, such excess costs are charged to operations.

     As of September 30, 1999, THEC estimates, using prices in effect as of such
     date, that the ceiling  limitation imposed under full cost accounting rules
     exceeded actual capitalized costs.


5.   GOODWILL

     At September 30, 1999,  the Company had recorded  goodwill in the amount of
     $251.0 million,  representing  the excess of acquisition cost over the fair
     value  of  net  assets  acquired   related  to  its  purchases  of  certain
     investments,  including $165.2 million, net of accumulated  amortization of
     $5.7 million, relating to the KeySpan Acquisition.
     Goodwill is being amortized over 15 to 40 years.


6. ENVIRONMENTAL MATTERS

     The  Company has  recorded a  liability  of  approximately  $125.2  million
     associated with  investigation and remedial  obligations with respect to 14
     of the Company's former manufactured gas plant ("MGP")sites, three of which
     are designated as "Class II Sites." Three MGP sites (one Class II Site) are
     associated with Brooklyn  Union's  operations or its  predecessors;  11 MGP
     sites are  associated  with the operations of Brooklyn Union of Long Island
     or its predecessors  (two of which are designated as Class II Sites).  With
     respect to the Brooklyn  Union MGP sites, a total of $47.3 million has been
     accrued,  representing  the best  estimate of remedial  costs for two sites
     that are subject to Administrative Orders on Consent ("AOC's") with the New
     York State Department of Environmental Conservation ("DEC") and the minimum
     range of an estimate  for the  investigation  and/or  remediation  of other
     sites.  Discussions  with the DEC are ongoing with regards to investigation
     of other sites.  With respect to Brooklyn Union of Long Island MGP sites, a
     total of $77.9 million has been accrued as a minimum of an estimated  range
     of costs for the 11 sites that will be  investigated/remediated.  Two AOC's
     were  executed  on March 31,  1999 for  Brooklyn  Union of Long  Island MGP
     sites.  One AOC addressed two MGP sites classified as Class II Sites on the
     State registry of inactive  hazardous waste sites.  The other AOC addressed
     four other MGP sites.  Both AOC's generally  require Brooklyn Union of Long
     Island to  investigate  the condition of each site and conduct  remediation
     activities depending on the results of the investigation. Brooklyn Union of
     Long Island also has entered into an AOC with the DEC requiring the Company
     to conduct preliminary site assessments for the five other former MGP sites
     that are no longer owned by the Company.

     Under prior rate orders,  the Public Service Commission of the State of New
     York  ("NYPSC") has allowed  recovery of costs related to certain  Brooklyn
     Union MGP sites.  At September 30, 1999, the Company has a total  remaining
     regulatory asset of approximately  $100 million.  The Company believes that
     current rate plans in effect for both Gas Distribution subsidiaries provide
     for recovery of  environmental  costs  attributable to the Gas Distribution
     segment.


7. REGULATORY ASSETS AND LIABILITIES

     The  Company's  regulated  subsidiaries  are subject to the  provisions  of
     Statement of Financial  Accounting  Standards  ("SFAS") No. 71, "Accounting
     for the Effects of Certain Types of  Regulation".  Regulatory  assets arise
     from the allocation of costs and revenues to accounting periods for utility
     ratemaking   purposes   differently   from  bases   generally   applied  by
     nonregulated companies. Regulatory assets and liabilities are recognized in
     accordance with SFAS-71.

     The Company's  regulatory assets of $313.8 million are primarily  comprised
     of regulatory tax assets,  costs  associated with the KeySpan  Acquisition,
     certain    environmental    remediation   and   investigation   costs   and
     postretirement  benefits other than pensions. In the opinion of management,
     regulatory assets are fully recoverable in rates.

     In the event that the provisions of SFAS-71 were no longer applicable,  the
     Company  estimates  that the related  write-off  of net  regulatory  assets
     (regulatory assets less regulatory liabilities) could result in a charge to
     net income of  approximately  $185.1 million,  or  approximately  $1.36 per
     share of common stock, which would be classified as an extraordinary item.

                                       60





8. EXTINGUISHMENT OF LONG-TERM DEBT AND FINANCING

     In June 1999, the Company  extinguished  its obligation  under a promissory
     note to LIPA  relating  to the  7.30%  Debentures  due July 15,  1999.  The
     Company's  obligation for these  debentures of $411.5 million  consisted of
     the  principal  amount of $397.0  million  and $14.5  million  of  interest
     accrued and unpaid.

     At September 30, 1999,  the Company had available  unsecured  bank lines of
     credit of $300 million.  Borrowings were made during the month of September
     1999.  The average  outstanding  daily  balance  during the month was $40.2
     million at a weighted  average  annualized  rate of 5.52%. At September 30,
     1999, the Company had $103.9 million in short-term  borrowings  outstanding
     at a weighted average annualized rate of 5.83%.


9. BUSINESS SEGMENTS

     The Company has six reportable segments: Gas Distribution,  Gas Exploration
     and  Production,  Electric  Services,  Energy Related  Investments,  Energy
     Related Services and Other.

     The Gas Distribution  segment consists of Brooklyn Union and Brooklyn Union
     of Long Island, providers of gas distribution services in the New York City
     counties  of Kings,  Richmond  and Queens and the Long  Island  counties of
     Nassau and Suffolk.

     The Gas  Exploration  and  Production  segment  is  engaged  in gas and oil
     exploration and production, and the development and acquisition of domestic
     natural gas and oil  properties.  This  segment  consists of our 64% equity
     interest in THEC, an independent  natural gas and oil exploration  company,
     as well as  KeySpan  Exploration  and  Production  LLC,  our  wholly  owned
     subsidiary  engaged in a joint venture with THEC.  The Company is currently
     reviewing its strategic  alternatives  for THEC, which may include the sale
     of all or a portion of THEC. (See  Management's  Discussion and Analysis of
     Financial Condition and Results of Operations,  "Capital  Requirements" for
     further information.)

     The Electric Services segment consists of subsidiaries that own and operate
     oil and gas fired generating plants in Queens and Long Island,  and through
     long-term contracts,  manage the electric T&D system, the fuel and electric
     purchases,  and the  off-system  electric  sales for LIPA.  In  addition  a
     subsidiary  provides  services in electric  infrastructure  construction to
     Company affiliates and to third parties.

     Subsidiaries in the Energy Related Investments segment include a 20% equity
     interest in the Iroquois Gas Transmission  System LP; a 50% interest in the
     Premier Transco  Pipeline and a 24.5% interest in Phoenix Natural Gas, both
     in Northern  Ireland;  and  investments  in certain  midstream  natural gas
     assets in Western Canada owned jointly with Gulf Canada Resources  Limited,
     through the Gulf Midstream Services Partnership ("GMS"). These subsidiaries
     are accounted  for under the equity  method since the  Company's  ownership
     interests  are  50%  or  less.   Accordingly,   equity  income  from  these
     investments is reflected in Other Income and  (Deductions) in the Condensed
     Consolidated Income Statement.

     The Company's Energy Related Services  segment  primarily  includes KeySpan
     Energy  Management  Inc.  ("KEM"),  KeySpan Energy  Services Inc.  ("KES"),
     KeySpan   Communications   Corporation,   KeySpan  Energy  Solutions,   LLC
     ("KESol"),   Fritze  KeySpan,  LLC  ("Fritze"),   and  Delta  KeySpan  Inc.
     ("Delta").  KEM owns, designs and/or operates energy systems for commercial
     and industrial  customers and provides  energy-related  services to clients
     located primarily within the New York City  metropolitan  area. KES markets
     gas and  electricity,  and arranges  transportation  and related  services,
     largely to retail  customers,  including  those served by the Company's two
     gas distribution  subsidiaries.  KeySpan Communications  Corporation owns a
     300-mile  fiber optic  network on Long Island and in New York City.  KESol,
     Fritze and Delta provide various  appliance,  heating,  ventilation and air
     conditioning  services to customers within the Company's service territory,
     New Jersey and Rhode Island.  KESol was  established in April 1998,  Fritze
     was acquired in November 1998 and Delta was acquired in September 1999.

     The Other segment primarily represents unallocated  administrative expenses
     of the Company, preferred stock dividends, and earnings from the investment
     of cash proceeds from the LIPA Transaction.

     The accounting  policies of the segments are the same as those used for the
     preparation  of  the  Condensed  Consolidated  Financial  Statements.   The
     Company's segments are strategic business units that are managed separately
     because  of their  different  operating  and  regulatory  environments.  At
     September 30, 1999,  the total assets of certain  reportable  segments have
     increased  from levels  reported at December  31, 1998 as follows:  the Gas
     Exploration and Production  segment's assets increased by $14.5 million due
     to our formation of and  investment in KeySpan  Exploration  and Production
     LLC; the Electric Services segment's assets increased by $230.0 million due
     to the  acquisition  of the Ravenswood  Facility (see Note 10  "Contractual
     Obligations and Contingencies"  for more details),  and $4.9 million due to
     the  formation  of  KeySpan   Energy   Construction;   the  Energy  Related
     Investments   segment's  assets  increased  by  $7.4  million  due  to  the
     acquisition by GMS of 37% of Paddle River Gas Plant;  and the assets of the
     Energy  Related  Services  segment  increased  by $21.2  million due to the
     acquisition  of  Delta   Mechanical  of  New  England,   Inc.,  a  heating,
     ventilation and air conditioning company in Rhode Island. (See Management's
     Discussion  and Analysis of Financial  Condition and Results of Operations,
     "Capital  Requirements" for further information on these acquisitions.) The
     segment  information  presented  below  reflects  amounts  reported  in the
     Condensed Consolidated Financial Statements, excluding special charges, for
     the three and nine months ended September 30, 1999 and 1998.

                                       61




Three Months Ended September 30, 1999                                                                  (In Thousands of Dollars)
- ------------------------------------------------------------------------------------------------------------------------------------
                    Gas           Gas Exploration  Electric Services Energy Related     Energy Related
                    Distribution  and Production                     Investments        Services          Other        Total
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                              
Revenue             $208,572      $  42,081          $241,259        $        -        $    46,557       $    -    $  538,469
- ------------------------------------------------------------------------------------------------------------------------------------
Cost of Gas         62,560                -                 -                 -                  -            -        62,560

Operations
and
Maintenance         106,101       7,532               131,403             1,276             45,325        7,042       298,679

Depreciation
Depletion
&
Amortization        24,630        18,644               12,395               196               993         6,272        63,130

Operating Taxes     41,168           107               36,724                 -                 -          (682)       77,317

Intercompany
Billings            2,748              -               11,345                 -                 -       (14,093)            -
- ------------------------------------------------------------------------------------------------------------------------------------

Total Expense    $237,207        $26,283             $191,867            $1,472           $46,318       $(1,461)     $501,686
- ------------------------------------------------------------------------------------------------------------------------------------

Operating Income $(28,635)       $15,798             $ 49,392           $(1,472)          $   239       $ 1,461      $ 36,783
- ------------------------------------------------------------------------------------------------------------------------------------

Earnings
for
Common Stock     $(29,037)       $ 5,435             $ 28,164           $ 2,651           $   286       $(7,171)      $   328
- ------------------------------------------------------------------------------------------------------------------------------------
Basic and
Diluted
EPS              $  (0.21)       $  0.04            $    0.21           $  0.02           $  0.00        $(0.06)      $  0.00
- ------------------------------------------------------------------------------------------------------------------------------------



Three Months Ended September 30, 1998                                                               (In Thousands of Dollars)
- ------------------------------------------------------------------------------------------------------------------------------------
                    Gas           Gas Exploration  Electric Services Energy Related     Energy Related
                    Distribution  and Production                     Investments        Services          Other        Total
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                 
Revenue             $203,241      $   30,545       $  176,358        $       89         $   24,348        $   -       $ 434,581
- ------------------------------------------------------------------------------------------------------------------------------------
Cost of Gas         56,305              -                -                 -                  -                 -       56,305

Operations
and
Maintenance         101,939            6,994          111,712             1,396         $   23,938          13,916     259,895

Depreciation
Depletion
&
Amortization         23,647           19,759            9,824               108                426           5,438      59,202

Operating Taxes      38,779              171           30,243                 1                349           8,281      77,824

Intercompany
Billings                581                -           12,955                 -                  -         (13,536)         -
- ------------------------------------------------------------------------------------------------------------------------------------
Total Expense      $221,251          $26,924         $164,734            $1,505            $24,713         $14,099    $453,226
- ------------------------------------------------------------------------------------------------------------------------------------
Operating Income   $(18,010)         $ 3,621         $ 11,624           $(1,416)           $  (365)        $(14,099)  $(18,645)
- ------------------------------------------------------------------------------------------------------------------------------------

Earnings
for
Common Stock       $(26,842)         $ 1,315         $  4,380           $ 1,174             $   77         $ (2,639)  $(22,535)(a)
- ------------------------------------------------------------------------------------------------------------------------------------

Basic and
Diluted
EPS                $  (0.17)         $ 0.01          $   0.03           $  0.01             $  0.00        $  (0.03)  $  (0.15)(a)
- ------------------------------------------------------------------------------------------------------------------------------------
(a) Excludes $3.8 million or $0.02 per diluted share of  non-recurring charges (net of tax) associated with the LIPA Transaction.




                                       62




Nine Months Ended September 30, 1999                                                                     (In Thousands of Dollars)
- ------------------------------------------------------------------------------------------------------------------------------------
                    Gas           Gas Exploration  Electric Services Energy Related     Energy Related
                    Distribution  and Production                     Investments        Services          Other         Total
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                 
Revenue             $1,208,254    $   103,622      $ 606,552         $         -       $ 124,675         $    -       $2,043,103
- ------------------------------------------------------------------------------------------------------------------------------------
Cost of Gas            470,633             -               -                   -               -              -          470,633

Operations
and
Maintenance            299,700         19,817        334,690           3,945             125,880           9,165         793,197

Depreciation
Depletion
&
Amortization            73,235         53,673         32,660             814               2,465          17,851         180,698

Operating Taxes        159,457            253         94,162               8                   3           4,472         258,355

Intercompany
Billings                 6,664              -         32,388               -                   -         (39,052)              -
- ------------------------------------------------------------------------------------------------------------------------------------

Total Expense       $1,009,689        $73,743       $493,900          $4,767             $128,348        $(7,564)      $1,702,883
- ------------------------------------------------------------------------------------------------------------------------------------

Operating Income    $  198,565        $29,879       $112,652          $(4,767)           $ (3,673)       $ 7,564       $  340,220
- ------------------------------------------------------------------------------------------------------------------------------------

Earnings
for
Common Stock        $   92,873        $ 9,239       $ 59,786          $ 5,401            $ (1,408)       $16,732)      $  149,159
- ------------------------------------------------------------------------------------------------------------------------------------

Basic and
Diluted
EPS                 $     0.66        $  0.07          $0.43          $  0.04            $  (0.01)       $ (0.13)       $    1.06
- ------------------------------------------------------------------------------------------------------------------------------------



Nine Months Ended September 30, 1998                                                                   (In Thousands of Dollars)
- ------------------------------------------------------------------------------------------------------------------------------------
                    Gas           Gas Exploration  Electric Services Energy Related     Energy Related
                    Distribution  and Production                     Investments        Services          Other        Total
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                
Revenue             $ 629,516      $   42,258        $1,130,416        $      117       $   30,706       $      -    $1,833,013
- ------------------------------------------------------------------------------------------------------------------------------------

Cost of Gas           247,895              -                 -                  -                -              -       247,895

Fuel and Purchased
Power                       -              -           257,786                  -                -              -       257,786

Operations
and
Maintenance           196,824          9,132           326,173              1,996           30,639         16,710       581,474

Depreciation
Depletion
&
Amortization           43,169         26,540           69,548                 108              588          7,448       147,401

Electric
Regulatory
Amortization                -             -           (79,875)                  -                -              -       (79,875)

Operating Taxes        89,160           216           193,451                   1              517          9,359        292,704

Intercompany
Billings                4,075             -            14,127                   -                -        (18,202)             -
- ------------------------------------------------------------------------------------------------------------------------------------

Total Expense        $581,123       $35,888          $781,210              $2,105          $31,744        $15,315     $1,447,385
- ------------------------------------------------------------------------------------------------------------------------------------

Operating Income      $48,393        $6,370          $349,206             $(1,988)         $(1,038)       $(15,315)   $ 385,628
- ------------------------------------------------------------------------------------------------------------------------------------

Earnings
for
Common Stock         $(3,680)       $2,343           $118,984             $1,222           $  (240)      $  (5,688)   $ 112,941(a)
- ------------------------------------------------------------------------------------------------------------------------------------

Basic and
Diluted
EPS                  $(0.03)       $  0.02             $0.86             $ 0.01              $0.00       $   (0.04)   $  0.82(a)
- ------------------------------------------------------------------------------------------------------------------------------------
(a) Excludes $10.3 million or $0.07 per diluted share of non-recurring charges (net of tax)  associated with the LIPA Transaction.


                                       62



10.  CONTRACTUAL OBLIGATIONS AND CONTINGENCIES

       The Company acquired the 2,168 megawatt  Ravenswood  electric  generating
       facility located in Long Island City,  Queens, New York from Consolidated
       Edison  Company  of New  York,  Inc.  ("Con  Ed"),  on June  18 1999  for
       approximately $597 million.

       As a means of  financing  this  acquisition,  the Company  entered into a
       lease agreement with a special  purpose,  unaffiliated  financing  entity
       that  acquired a portion of the facility  directly from Con Ed and leased
       it to a subsidiary of the Company under a ten year lease. The Company has
       guaranteed  all payment and  performance  obligations  of its  subsidiary
       under  the  lease.   Another  subsidiary  of  the  Company  provides  all
       operating,  maintenance and construction  services for the facility.  The
       lease  program  was  established  in order  for the  Company  to  finance
       approximately  $425 million of the acquisition cost of the facility.  The
       lease  qualifies as an operating lease for financial  reporting  purposes
       while preserving the Company's  ownership of the facility for federal and
       state income tax purposes. The balance of the funds needed to acquire the
       facility were provided from cash on hand.

       The Company will be responsible for environmental obligations relating to
       facility  operations  other than  liabilities  arising  from  pre-closing
       disposal of waste at off-site  locations  and any monetary  fines arising
       from  Con  Ed's  pre-closing  conduct.  Based  on  information  currently
       available  for  environmental  contingencies  related  to the  Ravenswood
       acquisition,  the Company has accrued $5 million as the minimum liability
       to be incurred.

       The Company intends to seek regulatory approvals to expand the Ravenswood
       Facility  through  the   installation  of  a  gas-fired   combined  cycle
       generation unit with a capacity of approximately 250 megawatts that would
       increase  electric  generation  capacity  at the  plant  by 12%.  The new
       capacity  could be  operational  by 2002  depending  upon the  timing  of
       regulatory approvals.


                                       63






11.    ACQUISITION OF EASTERN ENTERPRISES

       On November 4, 1999,  The  Company  and Eastern  Enterprises  ("Eastern")
       announced  that the companies have signed a definitive  merger  agreement
       under which the Company  will  acquire all of the common stock of Eastern
       for $64.00 per share in cash.  This  represents a premium of 24% over the
       Eastern  closing  price of $51.56 on November 3, 1999,  and a 45% premium
       over the average of the last 90-day  trading  period.  The  Agreement and
       Plan of Merger was filed as an exhibit to the Company's Form 8-K filed on
       November 5, 1999.

       The  transaction  has a total value of  approximately  $2.5 billion ($1.7
       billion in equity and $0.8 billion in assumed debt and preferred  stock).
       The transaction  will be accounted for as a purchase.  The increased size
       and scope of the combined organization should enable the combined company
       to provide enhanced, cost-effective customer service and to capitalize on
       the above-average  growth  opportunities for natural gas in the Northeast
       and provide additional resources to the Company's unregulated businesses.
       The combined companies will serve 2.4 million customers.

       It is  anticipated  that the  combined  company  will have assets of $8.8
       billion,  $4.3  billion in  revenues,  and EBITDA of  approximately  $950
       million.  The  Company  expects  pre-tax  annual  cost  savings  will  be
       approximately  $30 million.  These cost savings result primarily from the
       elimination of duplicate corporate and administrative  programs,  greater
       efficiencies  in  operations  and  business   processes,   and  increased
       purchasing efficiencies. The Company expects to achieve reductions due to
       the merger  through a variety of  programs  which  would  include  hiring
       freezes,  attrition and separation programs.  All union contracts will be
       honored.

       The Company  expects to raise $1.7 billion of initial  financing  for the
       transaction in short term markets which will  ultimately be replaced with
       long term financing.  Going forward, the Company will actively manage its
       balance sheet to maintain strong  investment grade ratings at each of its
       rated entities.

       The Company anticipates  continuing its current annual dividend of $1.78.
       Eastern will continue to pay its dividend at the annual rate of $1.72.

       Upon  completion  of the  transaction  Mr.  Robert B.  Catell will remain
       chairman  and  CEO of the  combined  company  and  Mr.  J.  Atwood  Ives,
       currently chairman and CEO of Eastern, will retire from active management
       at Eastern and will join the Company's board of directors.  The Company's
       corporate  headquarters  will  remain in New York and a  headquarters  in
       Boston will serve the New England operations.

       The merger is  conditioned,  among  other  things,  upon the  approval of
       Eastern shareholders,  the Securities and Exchange Commission and the New
       Hampshire  Public Utility  Commission.  The Company  anticipates that the
       transaction can be completed in 9 to 12 months but is unable to determine
       when or if all required approvals will be obtained.

       In connection with the merger,  Eastern has amended its merger  agreement
       with  EnergyNorth,  Inc.  ("EnergyNorth")  to  provide  for an  all  cash
       acquisition  of  EnergyNorth  shares at a price per share of $61.13.  The
       restructured  EnergyNorth  merger is expected to close  contemporaneously
       with the KeySpan/Eastern Enterprises transaction.

     Following the  announcement  that the Company has entered into an agreement
     to purchase Eastern  Enterprises,  Standard & Poor's Rating Services placed
     the  Company's  and  certain  of its  subsidiaries',  as well as  Eastern's
     corporate credit, senior unsecured debt, and preferred stock on CreditWatch
     with  negative  implications.  Similarly,  Moody's  Investors  Service also
     placed the Company's and certain of its subsidiaries', as well as Eastern's
     corporate  credit,  senior  unsecured debt,  commercial paper and preferred
     stock on review for possible downgrade.

       Eastern  Enterprises  owns and operates Boston Gas Company,  Colonial Gas
       Company,  Essex  Gas  Company,   Midland  Enterprises  Inc.  ("Midland"),
       Transgas Inc. ("Transgas"),  and ServicEdge Partners, Inc. ("ServicEdge")
       Upon  completion of the pending merger with  EnergyNorth,  Inc.,  Eastern
       will serve over 800,000  natural gas customers in  Massachusetts  and New
       Hampshire.  Midland,  headquartered  in Cincinnati,  Ohio, is the leading
       carrier  of coal and a major  carrier  of other dry bulk  cargoes  on the
       nation's inland waterways. Transgas is the nation's largest over-the-road
       transporter  of  liquefied   natural  gas.   ServicEdge  is  the  largest
       unregulated  provider of  residential  HVAC  equipment  installation  and
       service to customers in Massachusetts.



12.    NEW FINANCIAL ACCOUNTING STANDARDS

       In June 1999, the Financial  Accounting  Standards  Board ("FASB") issued
       SFAS  No.  137,  "Accounting  for  Derivative   Instruments  and  Hedging
       Activities  - Deferral of the  Effective  Date of SFAS No. 133." SFAS No.
       137 defers the effective date of SFAS No. 133 from fiscal years beginning
       after July 15, 1999 to fiscal years  beginning  after July 15, 2000.  The
       Company will therefore, adopt SFAS No. 133 in the first quarter of fiscal
       year 2001.  SFAS No. 133 establishes  accounting and reporting  standards
       for derivative  instruments and for hedging activities.  It requires that
       an entity  recognize all  derivatives  as either assets or liabilities in
       the statement of financial position and measure those instruments at fair
       value.  The Company  does not expect any  material  earnings  effect from
       adoption of this statement.

NOTE 13. KEYSPAN GAS EAST CORPORATION SUMMARY FINANCIAL DATA

KeySpan Gas East  Corporation  d/b/a Brooklyn Union of Long Island,  is a wholly
owned subsidiary of KeySpan Corporation. KeySpan Gas East acquired substantially
all of the assets related to the gas distribution  business of LILCO immediately
prior to the  LIPA  Transaction.  KeySpan  Gas East  provides  gas  distribution
services to customers in the Long Island  counties of Nassau and Suffolk and the
Rockaway  peninsula  of Queens  county.  KeySpan Gas East is  proposing to issue
securities  which will be fully and  unconditionally  guaranteed  by its parent,
KeySpan Corporation.

The following represents summarized financial data for KeySpan Gas East.

                                             (IN THOUSANDS OF DOLLARS)

                            September 30, 1999     December 31, 1998
- -------------------------- --------------------- --------------------
Total current assets                     214,147              256,186
Total noncurrent assets                1,338,952            1,330,661
Total current liabilities                514,803              505,784
Total noncurrent liabilities
    including long-term debt             399,388              467,736
Net Assets (1)                           638,908              613,327
- -------------------------- --------------------- --------------------


                          (IN THOUSANDS OF DOLLARS)

                     Nine Months     Nine Months
                        Ended           Ended
                    September 30,   September 30,
                        1999          1998 (2)
- ------------------ --------------- ---------------
Revenues                   441,228         448,426
Operating Income (3)        76,241          78,671
Net Income                  25,578          26,339
- ------------------ --------------- ---------------

(1)  Net Assets  reflect total assets less current and  noncurrent  liabilities.
     Intercompany  accounts  receivable  are  included  in  current  assets  and
     long-term   intercompany  accounts  payable  are  included  in  non-current
     liabilities.

(2)  For the period  January 1, 1998  through May 28, 1998 (the period  prior to
     the LIPA  Transaction),  certain income and expense  items,  common to both
     LILCO's gas and electric operations, were allocated to its gas and electric
     operations  consistent  with  the  methodology  utilized  by the  NYPSC  to
     establish rates.

(3)   Operating  income is defined as  revenues  less cost of gas and  operating
      expenses.  Operating expenses include the following  expenses:  operations
      and maintenance, depreciation and amortization and operating taxes.


                                       64