Northern Natural Gas Company

Fifth Revised Volume No. 1

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Effective Date: 02/21/2009, Docket: RP09-232-000, Status: Effective

Seventh Revised Sheet No. 431 Seventh Revised Sheet No. 431

Superseding: Sixth Revised Sheet No. 431

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Interruptible Throughput Service Agreement

Rate Schedule TI

Date:______________________

Shipper's Name and Address for Notices: Shipper's Name and Address for Invoices:

_________________________________________ _______________________________________

_________________________________________ _______________________________________

ATTN:____________________________________ ATTN:__________________________________

Contact 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 Maximum Daily 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.

This transportation shall be provided pursuant to Subpart ______ of Part 284 of the Federal

Energy Regulatory Commission's regulations.

If made available by Shipper, Northern agrees to receive and deliver thermally equivalent

volumes of natural gas as set forth in this Agreement.

Any valid delivery or receipt point on Northern's system can be utilized as a delivery or

receipt point subject to the terms and conditions of Rate Schedule TI.

[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.

For Subpart B contracts: [The transportation service described herein is provided on

behalf of [Eligible on-behalf of Party]].

For Subpart B and G contracts: [For purposes of delivery hereunder to delivery point(s)

constructed pursuant to Section 311 of the Natural Gas Policy Act, or to delivery points

delivering to intrastate pipelines, and to the extent that the Shipper has provided the

pipeline with an on-behalf-of certification, the transportation hereunder shall be

provided pursuant to Subpart B. All other transportation hereunder shall be pursuant to

Subpart G.]