REGISTRATION RIGHTS AGREEMENT dated as of April 5, 2007 between NORTHWEST PIPELINE CORPORATION and GREENWICH CAPITAL MARKETS, INC. BANC OF AMERICA SECURITIES LLC on behalf of themselves and the Initial Purchasers listed on Schedule I heretoRegistration Rights Agreement • April 6th, 2007 • Northwest Pipeline Corp • Natural gas transmission • New York
Contract Type FiledApril 6th, 2007 Company Industry JurisdictionThis Agreement is made pursuant to the Purchase Agreement dated as of April 2, 2007, among the Company and Greenwich Capital Markets, Inc. and Banc of America Securities LLC, as representatives of the Initial Purchasers (the “Purchase Agreement”), which provides for the sale by the Company to the Initial Purchasers of $185,000,000 principal amount of its 5.95% Senior Notes due 2017 (the “Securities”). The Securities are to be issued pursuant to the provisions of an Indenture dated the date hereof (as amended, supplemented or otherwise modified from time to time, the “Indenture”) by and among the Company and The Bank of New York, as trustee (the “Trustee”).