UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 1998 Commission File Number 1-12202 NORTHERN BORDER PARTNERS, L.P. (Exact name of registrant as specified in its charter) Delaware 93-1120873 (State or other jurisdiction of (I.R.S. Employer Identification incorporation or organization) Number) Enron Building 1400 Smith Street Houston, Texas 77002 (Address of principal executive (Zip code) offices) (713) 853-6161 (Registrant's telephone number, including area code) Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes [X] No [ ] 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) Date: November 12, 1998 By: JERRY L. PETERS Jerry L. Peters Chief Financial and Accounting Officer