Northern Natural Gas Company                                             Second Revised Sheet No. 128
FERC Gas Tariff                                                                           Superseding
Fifth Revised Volume No. 1                                                First Revised Sheet No. 128

                                            RATE SCHEDULE TI
                                    Interruptible Throughput Service


               1.  AVAILABILITY.

                   This Rate Schedule is available for transportation of natural gas
                   pursuant to an Interruptible Throughput Service by Northern Natural
                   Gas Company ("Northern") under the following terms and conditions:

                   (a)  Shipper has executed an Interruptible Throughput Service
                        Agreement ("TI Agreement") of the form contained in Northern's
                        FERC Gas Tariff ("Tariff");

                   (b)  the throughput service shall be subject to all of the terms and
                        conditions contained in this Rate Schedule and the "GENERAL TERMS
                        AND CONDITIONS" of this Tariff; and

                   (c)  the transportation of natural gas under the throughput service
                        shall be on an interruptible basis.


               2.  APPLICABILITY AND CHARACTER OF SERVICE.

                   Subject to the provisions of Rate Schedule TI and the "GENERAL TERMS
                   AND CONDITIONS" of this Tariff, service rendered under a TI Agreement
                   shall be on an interruptible basis and for a transportation quantity
                   up to the Maximum Daily Quantity ("MDQ").  MDQ is the volume of
                   natural gas specified in the TI Agreement that may be transported on a
                   daily basis from any valid Point(s) of Receipt to any valid Point(s) of
                   Delivery on Northern's traditional or Gulf Coast systems, as applicable.
                   Northern shall have the right to interrupt or curtail service under this Rate
                   Schedule TI (i) if there is insufficient capacity, (ii) if the available
                   capacity is reduced as a result of a force majeure event as defined in
                   Section 10, "Force Majeure" of the "GENERAL TERMS AND CONDITIONS" of this
                   Tariff, in accordance with Section 19, "Limitation of Northern's Obligation
                   to Provide Firm Service" of the "GENERAL TERMS AND CONDITIONS" of this
                   Tariff, or (iii) or as a result of any operational consideration reasonably
                   determined by Northern.  Service by Northern hereunder is conditioned upon
                   Northern's availability of




















Issued by: Mary Kay Miller, V.P. Regulatory & Government Affairs
Issued on: July 16, 2010                                                  Effective: August 16, 2010