Northern Natural Gas Company

Fifth Revised Volume No. 1

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Effective Date: 06/01/2009, Docket: RP96-272-092, Status: Effective

Original Sheet No. 66B.25 Original Sheet No. 66B.25

80/ For the period 11/01/2009 through 03/31/2010:

Contract Total Quantity (CTQ) - 1,000,000 Dth

Daily Minimum Injection - 0 Dth

Daily Maximum Injection - 50,000 Dth

Daily Minimum Withdrawal - 0 Dth

Daily Maximum Withdrawal - 50,000 Dth

Minimum Inventory - (125,000) Dth

Maximum Inventory - 125,000 Dth

Monthly Minimum Injection - 0 Dth

Monthly Maximum Injection - 750,000 Dth

Monthly Minimum Withdrawal - 0 Dth

Monthly Maximum Withdrawal - 750,000 Dth

The Total Transaction Rate charged shall be as follows:

Injection Charge: $0.0149

Withdrawal Charge: $0.0149

Total Monthly Inventory Charges: $0.0887

Capacity Fee: $0.2000

Annual Rollover Charge: $0.0000

Total Transaction Rate: $0.3185

Notwithstanding the above, Shipper will be charged the Capacity Fee (CAP)/Dth as reflected above at a point

level on the absolute inventory balance(s) any time a positive or negative balance(s) is created in

Shipper's account. In addition Shipper will be charged the CAP/Dth as reflected above at a point level on

the absolute beginning month inventory balance(s). The total cost commitment of this Agreement is equal to

$0.00.

The CTQ may be used at any storage point listed on Sheet No. 135D of Northern's FERC Gas Tariff.