SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549


                                    FORM 8-K


                             CURRENT REPORT PURSUANT
                          TO SECTION 13 OR 15(D) OF THE
                         SECURITIES EXCHANGE ACT OF 1934



Date of report (Date of earliest event reported) :           December 11, 2000


                               KEYSPAN CORPORATION
             (Exact Name of Registrant as Specified in Its Charter)


                                    New York
                 (State or Other Jurisdiction of Incorporation)


         1-14161                                            11-3431358
(Commission File Number)                       (IRS Employer Identification No.)

  175 East Old Country Road, Hicksville, New York                        11801
     One MetroTech Center, Brooklyn, New York                            11201
        (Address of Principal Executive Offices)                      (Zip Code)

                           (516) 755-6650 (Hicksville)
                            (718) 403-1000 (Brooklyn)
              (Registrant's Telephone Number, Including Area Code)


                                       N/A
          (Former Name or Former Address, if Changed Since Last Report)






Item 7.      Financial Statements, Pro Forma Financial Information and Exhibits.
             --------- ----------- --- ----- --------- ----------- --- --------

           (c)   Exhibits

                 (1)       Press Release of the Company dated December 11, 2000.



Item 9.              Regulation FD Disclosure

           On December 11, KeySpan  Corporation  ("the Company")  issued a press
release disclosing its expectations for future Company earnings.

           The Company's press release is attached hereto as Exhibit 99.1 and is
incorporated herein by reference.

           In addition,  on December 11, 2000 and December 14, 2000, the Company
will hold analyst meetings and discuss, among other things, its expectations for
future earnings. The slides that will be used at these meetings can be viewed in
the Investor Relations section of the Company's web site: www.keyspanenergy.com.








                                   SIGNATURES


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



                                                KEYSPAN CORPORATION

Dated: December 11, 2000                        By: /s/ Gerald Luterman
                                                    -------------------
                                                Name:  Gerald Luterman
                                                Title: Senior Vice President and
                                                       Chief Financial Officer






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


Exhibit No.          Exhibit                                          Page
- -----------          -------                                          ----

  99.1               Press Release dated December 11, 2000              5