Northern Natural Gas Company                                              Ninth Revised Sheet No. 115
FERC Gas Tariff                                                                           Superseding
Fifth Revised Volume No. 1                                               Eighth Revised Sheet No. 115

                                        RATE SCHEDULE TF
                                    Firm Throughput Services

               The maximum TF12 Base entitlement shall be the Shipper's actual
               average daily deliveries, including (1) total injections to the Ogden
               deferred delivery point and positive net injections to the Demarc
               deferred delivery point for FDD, PDD, IDD, or (2) third party
               storage; to the Town Border Stations (TBS's) or delivery points
               listed as primary delivery points in the Shipper's TF Service
               Agreement(s), from Northern's system over the preceding five (5)
               month summer period, May through September.  Furthermore, if the
               Shipper is the delivery point operator such daily deliveries shall
               (1) include all deliveries made to such TBS's under any TF Service
               agreement on an alternate point basis, and (2) include all deliveries
               made to such TBS's or delivery points under any TI Service Agreement,
               and (3) include all deliveries made to such TBS's or delivery points
               as a result of Capacity Release transactions described in Section 47
               of the GENERAL TERMS AND CONDITIONS of this tariff.  Deliveries
               pursuant to a TFX, GS-T, or LFT Service Agreement shall be excluded.

               To the extent the TF12 Base entitlement is adjusted, the TF12
               Variable entitlement shall be adjusted in the opposite direction in a
               like amount.

               The MDQs for the TF12 Base and TF12 Variable Throughput Service(s)
               shall be subject to reallocation in accordance with this Section 8
               annually; provided, however, the TF Agreement must be effective for
               at least one (1) year before the MDQs may be reallocated.  In no
               event shall Shipper modify on an annual basis the MDQ levels for the
               TF5 service.  This reallocation process will not affect TF5 MDQ
               unless allowed as a result of Section 47.  Additionally, this
               reallocation process shall not result in an automatic change to
               Northern's reservation rates.

               The provisions of this Section 8 shall apply in the same manner when
               a Shipper has multiple TF Service Agreements at the same point(s).
               Provided, however, daily deliveries to the TBS or delivery points
               shall be allocated among the TF agreements on a pro rata basis, using
               the Total Aggregate MDQ's of each TF agreement, unless Northern and
               Shipper agree in writing to a different allocation upon the
               effectiveness of the multiple contract situation.

           9.  GENERAL TERMS AND CONDITIONS.

               The GENERAL TERMS AND CONDITIONS of this Tariff are hereby
               incorporated into and made a part of this Rate Schedule.















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