Northern Natural Gas Company                                                 11 Revised Sheet No. 258
FERC Gas Tariff                                                                           Superseding
Fifth Revised Volume No. 1                                                   10 Revised Sheet No. 258

                                      GENERAL TERMS AND CONDITIONS

                   All nominations for service, including firm overrun, will be required to be
                   electronically nominated by path, i.e.  specific receipt point to specific
                   delivery point, provided that for nomination purposes, a Point of Delivery
                   in the Market Area or Argus Zone in the Field Area may be a currently established
                   Operational Zone, applicable to deliveries to the facilities of a single LDC.  For
                   Shipper(s) with combined service for both Market Area and Field Area, nominations
                   from the Field Area to the Market Area (or vice versa) must include a nomination
                   to and from the NNG Field/MKT Demarcation (POI 37654).  Northern will accept
                   facsimile nominations in the event of a failure of electronic nomination
                   communication equipment.  Overrun quantities shall be nominated as a separate
                   transaction.  All nominations must include shipper-defined begin dates and end
                   dates.  Additionally, the upstream and/or downstream contract information and
                   rankings must be provided for a nomination to be valid.

                   The receiver of a nomination initiates the confirmation process.  The party that
                   would receive a Request for Confirmation or an unsolicited Confirmation Response
                   may waive the obligation of the sender to send.

                   Northern may accept "standing nominations," excluding intra-day nominations, for
                   the then existing term of the Service Agreement.  The term "standing nominations"
                   shall mean a nomination of a specific volume to remain in effect until the earlier
                   of:

                    i)  the requested ending date of such nomination; or

                   ii)  a request by Shipper to change such nomination;

                   provided however, the term of the nomination is within the term of the Service
                   Agreement.

                   Auto-balancing is where a Shipper may request Northern to automatically schedule
                   volumes into or out of storage on behalf of the Shipper at such times when a
                   Shipper is allocated at a supply/market point as long as the Shipper currently
                   holds an FDD/IDD service agreement and as long as the scheduled volume is within
                   the storage parameters.  To the extent imbalances or receipt and delivery point
                   variances occur, Shipper shall be responsible for any applicable charges.  To
                   request this service, Shipper shall submit an executed Storage Balancing Option
                   form located on Northern's website.

                   With respect to the timely nomination/confirmation process at a receipt or
                   delivery point, in the absence of agreement to the contrary, the lesser of the
                   confirmation quantities should be the confirmed quantity.  If there is no response
                   to a Request for Confirmation or an unsolicited Confirmation Response, the lesser
                   of the confirmation quantity or the previously scheduled quantity should be the
                   new confirmed quantity.

                   To the extent Northern's other scheduling requirements are met, a Shipper may
                   redirect scheduled quantities to other receipt points upstream of a constraint
                   point or delivery points downstream of a constraint point at any of Northern's
                   subsequent nomination cycle(s) for the subject Gas Day, under the same contract,
                   without a requirement that the quantities be rescheduled through the point of
                   constraint.

                   With respect to the processing of requests for increases during the intraday
                   nominations/confirmation process, in the absence of agreement to the contrary, the
                   lesser of the confirmation quantities should be the new confirmed quantity.  If
                   there is no response to a Request For Confirmation or an unsolicited Confirmation
                   Response, the previously scheduled quantity should be the new confirmed quantity.

                   With respect to the processing of requests for decreases during the intraday
                   nomination/confirmation process, in the absence of agreement to the contrary, the
                   lesser of the confirmation quantities should be the new confirmed quantity, but in
                   any event no less than the elapsed-prorated-scheduled quantity.  If there is no
                   response to a Request For Confirmation or an unsolicited Confirmation Response,
                   the greater of the confirmation quantity or the elapsed-prorated-scheduled
                   quantity should be the new confirmed quantity.
Issued by: Mary Kay Miller, V.P. Regulatory & Government Affairs
Issued on: August 27, 2010                                             Effective: September 29, 2010