Northern Natural Gas Company

Fifth Revised Volume No. 1

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Effective Date: 04/17/2010, Docket: RP10-502-000, Status: Effective

Seventh Revised Sheet No. 251 Seventh Revised Sheet No. 251

Superseding: Substitute Sixth Revised Sheet No.251

GENERAL TERMS AND CONDITIONS

26. REQUESTS FOR SERVICE

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A. Processing Requests:

To initiate or amend service under Rate Schedules TF, TFX, LFT, GS-T, TI, FDD, PDD,

IDD, SMS and MPS, a valid request must be submitted to Northern. The

information required for a request is described in Section 27, "Information

Required for a Request for Service," of the GENERAL TERMS AND CONDITIONS of this

Tariff. Requests to extend a Service Agreement pursuant to the terms of the

agreement do not require a valid request under this section (e.g., grandfathered

rollovers, extension rights or Right of First Refusal).

All requests must be: 1) electronically submitted via Northern's Internet website;

2) faxed to the fax number posted on the website; 3) e-mailed to the e-mail address

posted on the website; or 4) submitted in accordance with an open season. All

requests will be deemed received only when the information is provided by one of the

methods above. Requests for service will be processed in the order they are received

and in accordance with the Posting and Awarding of Capacity section below. Requests

submitted in an open season shall be deemed received at the same time.

For firm services, a request must include the following information for Northern

to determine if capacity is available:

(a) the firm contract quantity;

(b) the Point(s) of Delivery (If the Point of Delivery is an Operational Zone,

Shipper must additionally specify the firm quantity attributable to each Town

Border Station (TBS) included in the Operational Zone.);

(c) the Point(s) of Receipt;

(d) the firm quantities applicable to the respective Point(s) of Receipt and

Point(s) of Delivery; and

(e) the term of service.

As soon as all of the information required to process a request for firm service has

been obtained, Northern shall have seven (7) Work Days to determine if capacity is

available and whether the capacity will be awarded as determined in accordance with

the Posting and Awarding of Capacity section below. Except as provided below, a

request for firm service, or a portion thereof, will be rejected if firm capacity to

render the service is not available, and Northern shall so notify the Shipper within

the seven (7) Work Days provided above.

Requests received pursuant to an open season and requests that require construction of

facilities will be processed in accordance with any open season notice and/or

facilities agreement (including precedent agreement) entered into by the parties.

If Shipper submits a request by the fifth (5th) day of a month to amend a primary

receipt or delivery point, to the extent that capacity is available, Northern will

submit an amendment to Shipper such that Shipper may return the executed amendment

five (5) days prior to the end of the month and then may nominate receipts from the

amended point for delivery by the first of the following month. Further, in a force

majeure situation, Shipper may request a change in primary receipt or delivery points

pursuant to this section.