Northern Natural Gas Company                                             Third Revised Sheet No. 442C
FERC Gas Tariff                                                                           Superseding
Fifth Revised Volume No. 1                                              Second Revised Sheet No. 442C

5.  ______________ agrees that it shall be liable to Northern for all nominations and payments due

    under this Agreement, subject to good faith dispute resolution.

6.  Each month Northern shall provide ______________ with a consolidated invoice that will contain no

    individual Shipper data.  ______________ will pay such invoice as provided in Northern's FERC Gas

    Tariff as revised from time to time (Tariff).  The rates for FDD service shall be Northern's

    maximum Tariff rates, or market-based-rates, unless otherwise agreed in writing.

7.  By participating in the Agreement, Shippers recognize that they are waiving certain rights they

    may have pursuant to Northern's Tariff, including the right to nominate under their individual

    Service Agreements, the right to be billed individually, the individual right to object to an

    invoice except through its agent/operator, and any other rights associated with having the

    agreements handled separately.

8.  This Agreement shall become effective _______________ and shall continue in full force and effect

    until terminated in accordance herewith.

9.  Nothing herein relieves Shippers of their obligations under their respective Service Agreements,

    including, but not limited to, balancing and paying invoices as principals under the Service

    Agreements.

10. Shippers will execute separate identical Agreements to evidence their agreement to participate in

    this Agreement.

11. This Agreement is subject to Northern's FDD Rate Schedule and the GENERAL TERMS AND CONDITIONS of

    Northern's Tariff.

The parties have indicated their agreement hereto by executing below.


              NORTHERN                           AGENT/OPERATOR

    NORTHERN NATURAL GAS COMPANY              [AGENT/OPERATOR NAME]


By:_______________________________       By:________________________________

Title:_____________________________      Title:_______________________________

Date:______________________________      Date:_______________________________


SHIPPER

[SHIPPER NAME]

__________________________________


By:_______________________________

Title:____________________________

Date:_____________________________

Northern Contract No._____________
Issued by: Mary Kay Miller, V.P. Regulatory & Government Affairs
Issued on: April 23, 2008                                                    Effective: May 24, 2008