SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Act of 1934 Date of Report (Date of earliest event reported): MARCH 19, 2004 NORTHERN BORDER PARTNERS, L.P. (Exact name of registrant as specified in its charter) DELAWARE 1-12202 93-1120873 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) File Number) Identification No.) 13710 FNB PARKWAY OMAHA, NEBRASKA 68154-5200 (Address of principal executive offices) (Zip Code) (402) 492-7300 (Registrant's telephone number, including area code) ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS. (c) Exhibits. 99.1 Northern Border Partners, L.P. press release dated March 19, 2004. ITEM 9. REGULATION FD DISCLOSURE. Attached as Exhibit 99.1 is a copy of Northern Border Partners, L.P. press release, dated March 19, 2004, announcing participation in the A.G. Edwards' Energy Conference and reaffirming its earnings guidance for 2004. 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 thereunto duly authorized. Northern Border Partners, L.P. ( A Delaware Limited Partnership) By: /s/ Jerry L. Peters ------------------------------------- Jerry L. Peters Chief Financial & Accounting Officer Dated: March 19, 2004 EXHIBIT INDEX Exhibit 99.1 -- Northern Border Partners, L.P. Press Release dated March 19, 2004.