Northern Natural Gas Company

Fifth Revised Volume No. 1

Effective Date: 11/01/2009, Docket: RP10-97-000, Status: Effective

Original Sheet No. 66B.28 Original Sheet No. 66B.28

83/ For the period 11/01/2009 through 03/31/2010, Shipper shall pay a volumetric reservation rate

equal to $0.80/DTH multiplied by the daily volumes delivered pursuant to this Agreement up to the

total MDQ of the Agreement.

In addition to the above reservation rate, Shipper shall (i) pay a commodity rate equal to the

maximum commodity rate provided in Northern's FERC Gas Tariff as revised 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 the FERC-approved Carlton

surcharge and all FERC-approved surcharges that are made effective after the effective date of

this Amendment and applicable to the service provided hereunder.

Notwithstanding the paragraphs above, Northern shall receive a minimum of $220,000 in total

revenue from reservation and commodity charges excluding overrun under this Agreement.

The rate stated herein is applicable to the receipt and (or) delivery points (POI) listed below.

Shipper agrees that if any other receipt or delivery points are used either on a primary or

alternate basis, the rates set forth herein will not be applicable and Northern's maximum tariff

rates will apply for the entire contract if any points not listed below are used.

Primary Receipt Point: Ventura Deferred Delivery Primary Delivery Point: Ventura Deferred Delivery

Alternate Receipt Points: All Market Area MID 16B - MID 17 receipt points Alternate Delivery

Points: GRE Cambridge Power Plant, GRE Elk River Plant, MID 17 Pooling Point, Pleasant Valley

Power Plant, Ventura Pooling Point, Ogden Deferred Delivery, NBPL/NNG Ventura, Pleasant Valley

Deferred Delivery.