Northern Natural Gas Company

Fifth Revised Volume No. 1

Effective Date: 04/01/2009, Docket: RP96-272-089, Status: Effective

Original Sheet No. 66B.16 Original Sheet No. 66B.16

71/ For the period 04/01/2009 through 04/30/2009, Shipper shall pay a total daily reservation and

commodity rate for the contract MDQ equal to a base rate of $0.120/DTH/day plus the arithmetic

value obtained from the formula [(A) times (B) times (C)] where (A) = The Midpoint price from "Gas

Daily" at Northern, Ventura minus the Midpoint price from "Gas Daily" Northern, Demarc minus

$0.125/DTH/day but in no event less than zero; (B) = The targeted % of primary to alternate (P to

A) and alternate to primary (A to P) volumes scheduled through Oakland for the Timely Nomination

Cycle as posted for each gas day, except in the event of another mainline group allocation between

the Rex Gage County interconnect and Ventura; and (C) = 0.50. In the event of an another mainline

group allocation between the Rex Gage County interconnect and Ventura, (B) shall equal the greater

of (i) the targeted % of P to A and A to P volumes scheduled through the applicable mainline

group(s) between the Rex Gage County interconnect and Ventura for the Timely Nomination Cycle as

posted for each gas day or (ii) the % of actual volumes scheduled to non-Demarc delivery points

under this Agreement up to the Contract MDQ during the Timely Nomination Cycle. The monthly rate

will be the sum of all daily rates from the formula above.

In addition to the above rates, Shipper shall (i) provide any applicable fuel use and unaccounted

for, and (ii) pay all FERC approved surcharges applicable to the service provided hereunder.

In addition, for overrun service, Shipper shall pay the maximum overrun rate set forth in

Northern's FERC Gas Tariff.

The rate stated above 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 Shipper shall pay the

higher of the rate in Paragraph No. 2.a. above or Northern's maximum tariff rates for the entire

contract during the month that any points not listed are used.

Primary Receipt Points: REX/NNG Gage County Primary Delivery Points: NNG Field/MKT Demarcation

Alternate Delivery Points: Demarc Deferred Delivery, Ventura Pooling Point

This Agreement shall extend month to month through 10/31/2009 at the rates set forth in Paragraph

2. unless Shipper provides Northern written notice to terminate the Agreement by the 15th day of

the then current month or the next business day if the 15th is on a weekend day or holiday and

month to month thereafter at Northern's maximum rates unless Shipper provides Northern written

notice to terminate the Agreement by the 15th day of the last month of the current term, or the

next business day if the 15th is on a weekend day or holiday.