Northern Natural Gas Company

Fifth Revised Volume No. 1

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Effective Date: 08/16/2010, Docket: RP10-976-000, Status: Effective

Fifth Revised Sheet No. 118 Fifth Revised Sheet No. 118

Superseding: Fourth Revised Sheet No. 118

RATE SCHEDULE TFX

Firm Throughput Service

Delivery Points

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a) Primary Firm Delivery Points.

(1) Flexibility. Shippers may request to amend their

agreements to add, change, or delete primary firm delivery points

as limited by the firm throughput service agreement as discussed

above. Approval of such request will be subject to capacity

availability and operational considerations.

No geographical limitations will be placed on the availability of

amended delivery points within the service area provided by the

contract.

Other than the discount provision below, there will be no

reservation fee impact if delivery points are moved solely within

the Market Area or moved solely within the Field Area.

(2) Discounts. Any discount granted (reservation or commodity) at a

primary delivery point will not be automatically granted at an

amended or alternate delivery point.

(3) Deletion of Original Primary Delivery Points. If an original

primary delivery point is deleted through an amendment, the

capacity at that original primary point will not be held for that

Shipper.

b) Alternate Firm Delivery Points.

(1) Flexibility. All delivery points on the system will be available

for use as alternate firm delivery point (including zone

deliveries to a specific customer) within the service area

provided by the contract and subject to operational

considerations. A Shipper may not have delivery point

flexibility between the Market Area and the Field Area (or vice

versa) unless the Shipper has combined Field Area/Market Area

contract.

(2) Discounts. Any discount granted (reservation or commodity) at

the primary delivery point will not be automatically granted at

the alternate delivery point.

Northern shall have the right to interrupt or curtail service under this Rate

Schedule TFX as a result of a force majeure event as defined in Section 10,

"Force Majeure" of the GENERAL TERMS AND CONDITIONS of this Tariff, or in

accordance with Section 19, "Limitation of Northern's Obligation to Provide Firm

Services" of the GENERAL TERMS AND CONDITIONS of this Tariff. Curtailment shall

be in accordance with Section 29, "Allocation of Capacity" of the GENERAL TERMS

AND CONDITIONS of this Tariff.