UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 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): July 24, 2003 Commission Registrant, State of Incorporation, I.R.S. Employer File Number Address and Telephone Number Identification No. 1-14768 NSTAR 04-3466300 800 Boylston Street Boston, Massachusetts 02199 Telephone (617) 424-2000 Item 7. Financial Statements and Exhibits (c) Exhibits. Furnished herewith as Exhibit 99.1 is NSTAR's press release regarding the second quarter of 2003 financial results. Filed herewith as Exhibit 99.2 are Condensed Consolidated Statements of Income for the quarters ended June 30, 2003 and 2002, Condensed Consolidated Balance Sheets at June 30, 2003 and December 31, 2002 and second quarter energy sales data for NSTAR. Item 9. Regulation FD Disclosure On July 24, 2003, NSTAR issued a press release reporting its second quarter of 2003 financial results that is attached to this Form 8-K as Exhibit 99.1. This information is furnished pursuant to Item 12, "Results of Operations and Financial Condition" of Form 8-K and is being presented under Item 9 of Form 8-K in accordance with SEC Release Nos. 33-8216 and 34-47583. SIGNATURE 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. NSTAR (Registrant) Date: July 24, 2003 By: /s/ R. J. WEAFER, JR Robert J. Weafer, Jr. Vice President, Controller and Chief Accounting Officer