SEVENTH SUPPLEMENT AMENDING NORTHERN BORDER PIPELINE COMPANY GENERAL PARTNERSHIP AGREEMENT DATED SEPTEMBER 23, 1993Tc Pipeline Lp • December 30th, 1998
Company FiledDecember 30th, 1998
SEVENTH SUPPLEMENT AMENDING NORTHERN BORDER PIPELINE COMPANY GENERAL PARTNERSHIP AGREEMENT DATED SEPTEMBER 23, 1993Tc Pipeline Lp • December 30th, 1998
Company FiledDecember 30th, 1998