Northern Natural Gas Company                                             Eighth Revised Sheet No. 109
FERC Gas Tariff                                                                           Superseding
Fifth Revised Volume No. 1                                              Seventh Revised Sheet No. 109

                                            RATE SCHEDULE TF
                                        Firm Throughput Services

                   Other rates and charges for services under this Rate Schedule shall
                   include each of the following:

                   (d)  A.C.A. Charge
                        -------------

                        Shipper shall pay the applicable Annual Charge Adjustment ("A.C.A.")
                        pursuant to Section 36 of the GENERAL TERMS AND CONDITIONS for
                        volumes transported for Shipper.

                   (e)  Fuel
                        ----

                        This Section (e), "Fuel", shall apply to all throughput.

                        In addition to the daily quantities delivered, prior to the
                        beginning of each calendar month Shipper shall elect to either:

                        (1) provide the appropriate Fuel; or

                        (2) purchase the appropriate Fuel from Northern.

                        The scheduling priority for Fuel shall be the same priority as
                        the respective volumes scheduled to flow.  The overall Fuel
                        and unaccounted for percentages are set forth on Sheet No. 54, and
                        detailed by receipt-to-delivery MID path on Sheet Nos. 61-64 of this
                        Tariff.

                        A Shipper's fuel and unaccounted for is determined by multiplying the
                        volumes at the receipt point by the applicable receipt-to-delivery
                        MID path rate as shown on Sheet Nos. 61-64.  If the Shipper's receipt
                        point is a mainline fuel point, the applicable fuel rate is the "ML
                        Fuel" rate from the MIDs matrix.  If the Shipper's receipt point is a
                        field fuel point, the applicable fuel rate is the "TOTAL" rate from
                        the MIDs matrix.

                        Electric Compression
                        --------------------

                        In addition, Shipper shall pay the applicable Market Area and Field
                        Area electric compression commodity rate, as shown on Sheet No. 54 of
                        this Tariff, pursuant to Section 53B of the GENERAL TERMS AND
                        CONDITIONS of this Tariff.

                   (f)  Daily Delivery Variance Charges (DDVC)
                        --------------------------------------

                        Shipper shall pay the applicable Daily Delivery Variances
                        charges pursuant to Section 48 of the GENERAL TERMS AND
                        CONDITIONS of this Tariff.








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