Transwestern Pipeline Company, LLC

Third Revised Volume No. 1

Effective Date: 10/23/2006, Docket: RP06-604-000, Status: Effective

First Revised Sheet No. 42 First Revised Sheet No. 42 : Effective

Superseding: Original Sheet No. 42

RATE SCHEDULE FTS-1

Firm Transportation Service

(continued)

4. CHANGES IN RATES

Transporter shall have the unilateral right to file with the appropriate regulatory authority

and make changes effective in (a) the rates and charges applicable to this Rate Schedule, (b)

this Rate Schedule, pursuant to which service hereunder is rendered; provided, however, that

the firm character of service shall not be subject to change hereunder, and/or (c) any

provisions of the General Terms and Conditions applicable to this Rate Schedule. Such

changes may include, but shall not be limited to, changes in the Transport Fuel percentages

set forth on the currently effective Rate Sheets. Such Transport Fuel percentages may be

changed from time to time by Transporter to reflect changes in fuel requirements. Such

changes may be implemented through a tariff filing. Transporter agrees that Shipper may

protest or contest the aforementioned filings, or may seek authorization from duly

constituted regulatory authorities for such adjustment of Transporter's existing FERC Gas

Tariff as may be found necessary to assure that the provisions in (a), (b) or (c) above are

just and reasonable.

5. GENERAL TERMS AND CONDITIONS

The General Terms and Conditions of this tariff are hereby incorporated into and made a part

of this Rate Schedule.