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) : August 12, 2002 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) 1 Item 9. Regulation FD Disclosure - ------- ------------------------ On August 12, 2002, in accordance with SEC File No. 4-460 and pursuant to Section 21 (a) (1) of the Securities Exchange Act of 1934, the Chief Executive Officer and the Chief Financial Officer of KeySpan Corporation executed sworn statements, which have been submitted to the Securities and Exchange Commission. Copies of each sworn statement are furnished as Exhibits 99.1 and 99.2 to this report. 2 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: August 14, 2002 By: /s/Ronald S. Jendras ------------------------------ Name: Ronald S. Jendras Title: Vice President Controller and Chief Accounting Officer 3 INDEX TO EXHIBITS ----------------- Exhibit No. Exhibit Page - ----------- ------- ---- 99.1 Sworn Statement of Robert B. Catell pursuant to SEC File No. 4-460 99.2 Sworn Statement of Gerald Luterman pursuant to SEC File No. 4-460 4