NNG - Tariff - Substitute Sixth Revised Sheet No. 297

Northern Natural Gas Company                                   Substitute Sixth Revised Sheet No. 297
FERC Gas Tariff                                                                           Superseding
Fifth Revised Volume No. 1                                                Sixth Revised Sheet No. 297

                               GENERAL TERMS AND CONDITIONS


                  52.  RIGHT OF FIRST REFUSAL
                       ----------------------

                       Shippers holding firm Agreements at maximum rates with a term of
                       twelve (12) or more consecutive months of service or for a term of
                       more than one (1) year for service not available for twelve
                       consecutive months may exercise the Right of First Refusal.  Such
                       agreements are not subject to pregranted abandonment provided
                       notice is given as described herein.  A Shipper may agree to waive
                       its Right of First Refusal at any time.  Firm Service Agreements
                       at discounted rates entered into prior to March 27, 2000, with a
                       term equal to or greater than one (1) year, retain the Right of
                       First Refusal; however, any such grandfathered service agreement
                       must extend at maximum rates for twelve (12) or more consecutive
                       months of service or for a term of more than one (1) year for
                       service not available for twelve consecutive months in order to
                       retain its Right of First Refusal beyond the extended term.
                       Any Shipper with a contract having Right of First Refusal who
                       wishes to extend their contract at maximum rates for a term of at
                       least five (5) years, can be extended without exercising the Right
                       of First Refusal process or posting.  A firm Shipper may elect to
                       retain a portion of its capacity, subject to the Right of First
                       Refusal process and have Northern's pregranted abandonment
                       authority apply to the remainder of the capacity.

                       The Right of First Refusal will not be applicable to interim
                       service agreements for entitlement associated with (1) expansion
                       projects as set forth in Section 26 of this Tariff, and
                       (2) capacity that is already under contract for a future period
                       subject to the following conditions:

                           a)  The future capacity must have been sold through an open
                               season bidding process permitting bids for capacity for
                               service to start immediately or anytime in the future;
                           b)  the bids must have been evaluated on a net present value
                               basis; and
                           c)  the future capacity must have been awarded to the Shipper
                               providing the highest net present value bid.


                       The process for exercising the Right of First Refusal is as
                       follows:

                       1)  Notice
                           ------

                           Northern will provide no more than nine (9) months, and no
                           less than eight (8) months advance written notice of pending
                           contract expiration to firm Shippers with contract terms of
                           one (1) year or more.  Shippers must give written notice to
                           Northern within sixty (60) days of the date of Northern's
                           notification to Shipper that it wishes Northern to post its
                           capacity to begin the Right of First Refusal process.




Issued by: Mary Kay Miller, V.P. Regulatory & Government Affairs
Issued on: April 19, 2005                                               Effective: December 30, 2004
Filed to comply with order of the Federal Energy Regulatory Commission,
Docket No. RP03-398-012, issued March 25, 2005, 110 FERC 61,361