Midwestern Gas Transmission Company

Third Revised Volume No. 1

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Effective Date: 12/01/2009, Docket: RP10-74-000, Status: Effective

Fourth Revised Sheet No. 400 Fourth Revised Sheet No. 400

Superseding: Third Revised Sheet No. 400

MIDWESTERN GAS TRANSMISSION COMPANY

SUPPLY AGGREGATION SERVICE AGREEMENT

Rate Schedule SA

THIS AGREEMENT is made and entered into as of _____ day of ____________, 20____, by

and between MIDWESTERN GAS TRANSMISSION COMPANY, hereinafter referred to as "Company," and

___________________________, hereinafter referred to as "Aggregator." Company and

Aggregator shall collectively be referred to herein as the "Parties."

ARTICLE 1

SCOPE OF AGREEMENT

Subject to the terms, conditions and limitations hereof and of Company's Rate Schedule SA,

Company agrees to permit Aggregator to aggregate nominated quantities of gas, under any of

Company's transportation rate schedules, at a Supply Aggregation Point (SA Point) pursuant

to Rate Schedule SA.

ARTICLE 2

CHARGES FOR SUPPLY AGGREGATION SERVICE

2.1 IMBALANCE CHARGES - Commencing upon the date of execution hereof, any charges related

to imbalances at the physical point(s) served by the SA Point shall be paid by

Aggregator to Company in accordance with Company's Rate Schedules SA, LMS-PA and

LMS-MA as well as the General Terms and Conditions of Company's FERC Gas Tariff.

2.2 CHANGES IN CHARGES - Aggregator agrees that Company shall have the unilateral right

to file with the appropriate regulatory authority and make effective changes in

(a) the charges applicable to service pursuant to Company's Rate Schedule SA, (b) the

rate schedule(s) pursuant to which service hereunder is rendered, or (c) any

provision of the General Terms and Conditions applicable to those rate schedules or

this Agreement. Company agrees that Aggregator may protest or contest the

aforementioned filings, or may seek authorization from duly constituted regulatory

authorities for such adjustment of Company's existing FERC Gas Tariff as may be found

necessary to assure Company just and reasonable rates.

ARTICLE 3

INVOICING AND PAYMENTS

Company shall bill and Aggregator shall pay all charges in accordance with Sections 5 and

6, respectively, of the General Terms and Conditions of Company's Gas Tariff.

ARTICLE 4

RATE SCHEDULES, GENERAL TERMS AND CONDITIONS

AND EXHIBIT A OF AGREEMENT

Company's Rate Schedules and General Terms and Conditions which are on file with the FERC

and in effect, and Exhibit A hereto are all applicable to this Agreement and are hereby

incorporated by reference, and made part of this Agreement. To the extent a term or

condition set forth in this Agreement is inconsistent with the General Terms and

Conditions, the General Terms and Conditions shall govern. Furthermore, to the extent a

term or condition set forth in this Agreement is inconsistent with the applicable Rate

Schedule, then the terms and conditions of the Rate Schedule shall govern unless the

relevant provision is inconsistent with General Terms and Conditions.

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