NNG - Tariff - Sub Second Revised Sheet No. 107

NORTHERN NATURAL GAS COMPANY                                         Sub Second Revised Sheet No. 107
FERC Gas Tariff                                                                           Superseding
Fifth Revised Volume No. 1                                                First Revised Sheet No. 107





                                            RATE SCHEDULE TF
                                        Firm Throughput Services


              6.  RATES AND CHARGES.
                  ------------------

                  The monthly billing for Firm Throughput Service(s) TF12 Base,
                  TF12 Variable, TF5 and TFF shall be the sum of:

                  (a)  Throughput Reservation Charges
                       ------------------------------

                       Shipper shall be billed monthly for reservation charges associated
                       with its Field, Market or combined TF agreements.  The monthly bill
                       will be derived by using the applicable Throughput Reservation Rate
                       for the TF Throughput Service as shown on Sheet No. 50 of this
                       Tariff multiplied by the MDQs for each respective Throughput
                       Service(s) as shown on the TF Agreement.  In addition, Shipper
                       shall be billed monthly for reservation charges associated with any
                       receipt capacity MDQ reserved in excess of delivery capacity MDQ in
                       the Market Area and in the Field Area at a rate equal to one-half
                       of the TF12 Base monthly reservation charge per MMBtu as shown on
                       Sheet No. 50.

                  (b)  Throughput Commodity Charge
                       ---------------------------

                       The total units of TF volumes during the respective month
                       multiplied by the Commodity Rate for each respective Throughput
                       Service(s) unit transported as shown on Sheet No. 50 of this
                       Tariff.

























Issued by: Mary Kay Miller, V. P. Rates and Certificates
Issued on: October 30, 1998                                               Effective: November 1, 1998
Issued to comply with order of the Federal Energy Regulatory
Commission, Docket No. RP98-203-000, dated October 29, 1998