Northern Natural Gas Company                                              Fifth Revised Sheet No. 67A
FERC Gas Tariff                                                                           Superseding
Fifth Revised Volume No. 1                                               Fourth Revised Sheet No. 67A

1/  Unless otherwise noted, negotiated Service Agreements do not deviate in any material respect from the
    applicable form of service agreement set forth in Northern's FERC Gas Tariff.  The negotiated rates
    beginning on Sheet No. 67 reflect negotiated rate transactions that require 30 day filings.

2/  The rate stated in the Negotiated Rate column is exclusive of all surcharges.

3/  As noted on Tariff Sheet Nos. 80, 80A or 80B, this contract is also a non-conforming agreement.

6/  For the period 04/01/2010 through 03/31/2015, Shipper agrees to reimburse Northern through a
    negotiated rate for (i) 63.64% (1.4 miles of the 2.2 miles) of the actual cost of the new branch
    line facilities and (ii) the actual cost of the Houghton #1 TBS upgrade facilities, both through a
    "Facility Cost Add-on Demand Charge" as described below.

    Effective 04/01/2010 through 03/31/2011, Shipper shall pay a monthly reservation charge equal to the
    maximum tariff rate as set forth in Northern's FERC Gas Tariff, as amended from time to time; plus
    an amount equal to $1.5073/Dth/Month for the Facility Cost Add-on Demand Charge.

    Northern will adjust the Facility Cost Add-on Demand Charge from 04/01/2011 through 03/31/2015 to recover
    additional actual costs not previously included, including all appropriate Gross Up Charges as referenced
    herein.

    The Facility Cost Add-on Demand Charge will include the (i) recovery of the actual cost of
    construction of the facilities including AFUDC; (ii) a credit of $153,397 for an amount budgeted
    for improvements scheduled at the Houghton #1 TBS; and (iii) Ad Valorem taxes, income tax gross up
    and interest over the five year recovery term of the agreement (items in (iii), all together, Gross
    Up Charges). The total amount to be reimbursed to Northern by Shipper will be subject to a true-up
    to actual costs associated with the construction of the facilities plus the Gross Up Charges. The
    Facility Cost Add-on Demand Charge will be added to the reservation rates paid by Shipper each month
    on all firm entitlement on the Agreement.

    In addition to the above reservation rates, Shipper shall (i) pay a commodity rate equal to the
    maximum commodity rate provided in Northern's FERC Gas Tariff, as amended from time to time (these
    rates include the applicable Annual Charge Adjustment and electric compression charges), (ii) provide
    any applicable fuel use and unaccounted for, and (iii) pay all current and future FERC-approved
    surcharges applicable to the service provided hereunder.

    In exchange for the consideration received hereunder, including without limitation the expected
    revenue from the Facility Cost Add-on Demand Charge, Northern will make the capital expenditures for
    the construction of the facilities; however, in the event the entitlement on this Agreement is, for
    any reason, in whole or in part, (i) reduced (except in the instance of a temporary capacity release
    or an event outside of Shipper's control), or (ii) the Agreement is terminated, in whole or in part,
    prior to 10/31/2015, Shipper shall promptly pay to Northern an amount equal to the remaining unpaid
    Facility Cost Add-on Demand Charge.  This provision and the obligations herein shall survive the
    termination of this Agreement if terminated prior to 10/31/2015, or the release of the capacity or
    any assignment thereof and Shipper shall continue to be obligated for the reimbursement of the actual
    cost of the facilities unless Northern consents to the release or assignment and the obligation is
    expressly assumed by an acquiring shipper that complies with the credit provisions in Northern's FERC
    Gas Tariff.













Issued by: Mary Kay Miller,V.P. Regulatory & Government Affairs
Issued on: September 10, 2010                                            Effective: October 12, 2010