Westgas Interstate, Inc.

First Revised Volume No. 1

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Effective Date: 09/01/1993, Docket: RS92- 89-002, Status: Effective

Original Sheet No. 22 Original Sheet No. 22 : Effective

RATE SCHEDULE IT

INTERRUPTIBLE TRANSPORTATION SERVICE

(e) An additional charge may be assessed in

accordance with 8 of the General Terms and

Conditions.

3.2 RATE CHANGES.

(a) Transporter may from time to time file with

the FERC to change the rates set forth on the

Statement of Rates applicable to service under

this rate schedule. Transporter shall be entitled

to implement such changed rates for service

rendered to Shipper under this rate schedule on

their effective dates, subject to such refunds,

surcharges or other conditions that are specified

as terms of the transportation service agreement

or that are permitted or required by the FERC.

Nothing in this section limits Shipper's rights to

contest such changes, nor limits the rights of

Shipper and Transporter to provide for lawful

changes in rates through the terms of the

transportation service agreement.

(b) Any change in a rate applicable to service

provided to Shipper under this rate schedule shall

not be deemed as modifying or otherwise changing

Shipper's priorities under 9 of the General

Terms and Conditions.

3.3 FLEXIBLE RATES. Subject to the terms of the

Transportation Service Agreement, Transporter reserves

the right to prescribe and/or to adjust at anytime any

of the rates applicable to any individual shipper

without adjusting any other rates for that or another

Shipper; provided, however, that such adjusted rate(s)

shall not exceed the applicable maximum rate(s) nor

shall they be less than the applicable minimum rate(s)

set forth on Sheet No. 5 of the FERC Gas Tariff, First

Revised Volume No. 1. Downward adjustment to any

rate shall be for a specific term. Unless otherwise

agreed, at the expiration of the term specified in

Exhibit B of the Service Agreement, the rate for

Transportation Service shall revert to the maximum

allowable rate under this Rate Schedule.