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