Northern Natural Gas Company                                             Fourth Revised Sheet No. 129
FERC Gas Tariff                                                                           Superseding
Fifth Revised Volume No. 1                                                Third Revised Sheet No. 129

                                            RATE SCHEDULE TI
                                    Interruptible Throughput Service

                   capacity sufficient to provide the service hereunder without
                   detriment or disadvantage to Northern's present and future firm
                   customers and Shippers and shall be subject to the operating and
                   system requirements of Northern as reasonably determined by Northern.


               3.  OFFERING OF TI SERVICE.

                   To initiate service under this Rate Schedule TI, a valid request must be
                   submitted in accordance with Section 26, "Requests for Service" and Section
                   27, "Information Required for a Request for Service," of the
                   GENERAL TERMS AND CONDITIONS of this Tariff.

               4.  TERM OF TI AGREEMENT.

                   The TI Agreement must be executed by Shipper prior to commencement of
                   service.

                   The term of service shall be set forth in the TI Agreement.  If no service is
                   rendered under a TI Agreement for a one (1) year period, such TI Agreement
                   shall be terminated by Northern, unless otherwise mutually agreed.

               5.  OVERRUN

                   Overrun Volumes.  Northern agrees to transport volumes in excess of the MDQ
                   ("Overrun Volumes") on an interruptible basis for Shipper in accordance with
                   the terms and conditions of this Rate Schedule and the GENERAL TERMS AND
                   CONDITIONS of this Tariff, provided that sufficient capacity exists to
                   transport such Overrun Volumes.









 



















Issued by: Mary Kay Miller, V.P. Regulatory & Government Affairs
Issued on: March 17, 2010                                                  Effective: April 17, 2010