Northern Natural Gas Company

Fifth Revised Volume No. 1

Effective Date: 03/01/1996, Docket: RP96-137-001, Status: Effective

Original Sheet No. 237C Original Sheet No. 237C : Effective

GENERAL TERMS AND CONDITIONS

a. If the net overrecovery was the result of an overrecovery for both the Order

No. 528 Reservation Surcharge and the Order No. 528 Volumetric Surcharge,

then Northern shall refund the Reservation portion of the overrecovery to

those parties who paid the Order No. 528 Reservation Surcharge based on the

amount paid by each party compared to the total amount of Order No. 528

Reservation Surcharge paid during the Amortization Period. Northern shall

refund the Order No. 528 Volumetric Surcharge portion of the overrecovery

based on the amount paid by each party compared to the total amount of Order

No. 528 Volumetric Surcharge paid during the Amortization Period.

b. If the net overrecovery was the result of an overrecovery for the Order No.

528 Reservation Surcharge, but an underrecovery for the Order No. 528

Volumetric Surcharge, then Northern shall refund the net overrecovery to those

parties who paid the Order No. 528 Reservation Surcharge based on the amount

paid by each party compared to the total amount of Order No. 528 Reservation

Surcharge paid during the Amortization Period.

c. If the net overrecovery was the result of an underrecovery for the Order No.

528 Reservation Surcharge, but an overrecovery for the Order No. 528

Volumetric Surcharge, then Northern shall refund the net overrecovery to those

parties who paid the Order No. 528 Volumetric Surcharge based on the amount

paid by each party compared to the total amount of Order No. 528 Volumetric

Surcharge paid during the Amortization Period.