Northern Natural Gas Company

Fifth Revised Volume No. 1

Effective Date: 11/01/1994, Docket: RP95- 23-000, Status: Effective

First Revised Sheet No. 150 First Revised Sheet No. 150 : Effective

Superseding: Original Sheet No. 150

RATE SCHEDULE SF

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1. AVAILABILITY

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This Rate Schedule SF shall apply to all firm and interruptible sales service

rendered by the Pipeline Sales Division of Northern Natural Gas Company

(Northern's Merchant Division) under the blanket certificate of public

convenience and necessity granted to Northern pursuant to the order of the

Federal Energy Regulatory Commission ("Commission") issued in Docket No. RS92-8

and Section 284.284(a) of the Commission's Regulations. Service under this Rate

Schedule SF shall be available to any gas purchaser (Purchaser) pursuant to such

blanket certificate and with which Northern's Merchant Division has entered into

a Sales Service Agreement pursuant to this Rate Schedule SF.

2. APPLICABILITY AND CHARACTER OF SERVICE

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The sales service rendered pursuant to this Rate Schedule SF shall be sold

separately and totally unbundled from transportation or gathering service on the

facilities of Northern Natural Gas Company (Northern).

3. REQUESTS FOR TRANSPORTER SALES SERVICE

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Sales service under this Rate Schedule SF shall be available only on the condition and to

the extent that Northern's Merchant Division and Purchaser have agreed, each acting

in its sole discretion, to such service and have executed a written Sales

Service Agreement that contains the terms, conditions, rates and fees applicable

to such service. Northern shall have no obligation to provide sales service for

any quantity of gas or period of time except to the extent it has specifically

agreed to do so in a Sales Service Agreement executed in accordance with this

Section 3. When a Sales Service Agreement between Northern's Merchant Division

and a Purchaser expires, Northern's Merchant Division is authorized to

automatically terminate and abandon the sales service without the requirements

of any pre-approval by the Commission for such termination and abandonment.

4. RATES, CHARGES, TERMS AND CONDITIONS

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The terms, conditions, rates and charges applicable to service provided under

this Rate Schedule SF shall be those negotiated terms, conditions, rates and

charges to which Northern's Merchant Division and Purchaser have agreed in the

Sales Service Agreement between them relating to such service as described in

Section 3 of this Rate Schedule SF. Northern's Merchant Division shall

negotiate such terms, conditions, rates and charges with individual Purchasers

on a not unduly discriminatory basis.