Northern Natural Gas Company                                            Seventh Revised Sheet No. 446
FERC Gas Tariff                                                                           Superseding
Fifth Revised Volume No. 1                                                Sixth Revised Sheet No. 446

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                         Interruptible Deferred Delivery Service Agreement
                                        Rate Schedule IDD

                                                                 Date:  _____________

Shipper's Name and Address for Notices:           Shipper's Name and Address for Invoices:
_______________________________________           ________________________________________
_______________________________________           ________________________________________
ATTN:__________________________________           ATTN:___________________________________



Contract No.:    _________________



Term:  From__________________ to ____________ [If applicable] and shall continue month to
month thereafter unless terminated by either party upon thirty (30) days written notice.

Interruptible Deferred Quantity:________________________ Dth

Rates shall be Northern's maximum rates and charges plus all applicable surcharges in
effect from time to time under the applicable Rate Schedule on file with the Commission
unless otherwise agreed to by the parties in writing.

[If Applicable] Other Provisions Permitted By Tariff Under the Applicable Rate Schedule and
pursuant to Section 58 of the GENERAL TERMS AND CONDITIONS of Northern's FERC Gas Tariff:
_______________________________________________________________________________________


The parties agree that a facsimile or electronic version of this document, when properly
executed and transmitted, shall be considered for all purposes to be an original document, and
shall be deemed for all purposes to be signed and constitute a binding agreement.  The entire
agreement must be faxed or transmitted to Northern.  Upon Northern's acceptance and execution,
an executed copy will be returned via FAX to the number appearing on the faxed offer or such
other number as directed or otherwise electronically transmitted.

This Agreement constitutes the entire agreement between the parties with respect to the
subject matter of this Agreement and shall be binding upon and shall inure to the benefit of
the parties hereto and their respective successors and assigns.  No promises, agreements or
warranties additional to this Agreement other than as may be contained in Northern's FERC Gas
Tariff will be deemed to be a part of this Agreement nor will any alteration, amendment or
modification be effective unless confirmed in writing by the parties.

Any notice, statement, or bill provided for in this Agreement shall be in writing and
shall be considered as having been given if delivered personally, or if mailed by United
States mail, postage prepaid, or if sent by express mail, overnight delivery, telex,
telecopy or other mutually agreeable means of electronic transmission, to Shipper when sent
to the address set forth on this Agreement and to Northern when sent to the following:

All Notices/Accounting Matters:                   Payments to Designated Depository:
Northern Natural Gas Company                      Northern Natural Gas Company
[Information]                                     [Information]


Issued by: Mary Kay Miller, V.P. Regulatory & Government Affairs
Issued on: January 21, 2009                                             Effective: February 21, 2009