UNITED STATES
                       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): March 24, 2006


                               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)





Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions:

[ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR
230.425)

[ ] Soliciting  material  pursuant to Rule 14a-12 under the Exchange Act (17 CFR
240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
Act (17 CFR 240.13.e-4(c))









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Item 1.01       Entry into a Material Definitive Agreement.


On March 24, 2006,  KeySpan  entered  into a Letter  Agreement  with Mr.  Gerald
Luterman,  Executive Vice President and Chief  Financial  Officer to provide Mr.
Luterman  with  separation  benefits  at his  current  level of three times base
salary  pursuant to the Change of Control Plan  without  regard to his age as of
any date of termination.  A copy of Mr.  Luterman's Letter Agreement is attached
hereto as Exhibit 10.1 and is incorporated herein by reference.

KeySpan also entered into an Agreement  and Waiver of Rights and Claims with Ms.
Lenore F. Puleo,  Executive Vice President - Shared  Services on March 24, 2006.
Ms.  Puleo has elected to retire from  KeySpan  effective  April 1, 2006.  As an
officer of  KeySpan,  Ms.  Puleo was a  participant  under  KeySpan's  Change of
Control Plan with a benefit level of three.  This Agreement  provides for, among
other  things,  that Ms.  Puleo will receive a lump sum benefit of one times her
salary upon her termination and that if there is a change of control pursuant to
the Change of Control  Plan by March 31,  2008,  that she shall be  entitled  to
benefits thereunder,  less the lump sum benefit paid upon her retirement. A copy
of the Agreement is attached hereto as Exhibits 10.2 and is incorporated  herein
by reference.






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Item 9.01       Financial Statements and Exhibits.

(c) Exhibits.

Exhibit No.              Exhibit Description
- -----------              -------------------



10.1                     Letter Agreement between KeySpan and Gerald Luterman
                         dated March 24, 2006

10.2                     Agreement and Waiver of Rights and Claims between
                         KeySpan and Lenore F. Puleo dated as of March 24, 2006









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                                   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: March 30, 2006              By: /s/John J. Bishar Jr.
                                       ---------------------
                                       Name:  John J. Bishar Jr.
                                       Title: Senior Vice President, General
                                              Counsel, Chief Governance Officer
                                              and Secretary









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


Exhibit No.               Exhibit Description
- -----------               -------------------



10.1                      Letter Agreement between KeySpan and Gerald Luterman
                          dated March 24, 2006

10.2                      Agreement and Waiver of Rights and Claims between
                          KeySpan and Lenore F. Puleo dated as of March 24, 2006










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