Southwest Gas Storage Company

Original Volume No. 1

Effective Date: 01/20/1991, Docket: CP90-1014-002, Status: Effective

Original Sheet No. 52 Original Sheet No. 52 : Superseded

RATE SCHEDULE FSS (Continued)

FIRM STORAGE SERVICE

3.4 Range of Rates

Unless otherwise agreed upon by Seller and Buyer, the

rates applicable to a Buyer for service hereunder shall

be the applicable Maximum Rate(s) as set forth on the

effective Tariff Sheet No. 4-A. In the event an amount

less than the applicable Maximum Rate(s) and not less

than the applicable Minimum Rate(s) is agreed upon,

such amount shall be confirmed in writing by Seller,

shall be applied prospectively and Seller shall be

responsible for compliance with any reporting

requirements prescribed by the Commission.

3.5 Annual Charge Adjustment Provision (ACA)

Buyer shall pay the ACA Unit Charge which has been

assessed by the Federal Energy Regulatory Commission

pursuant to Section 382.202 of the Regulations. The ACA

Unit Charge shall be reflected on Sheet No. 4-A of this

tariff and shall be added to the respective Volume

Injection Charge component of Seller's rates.

4. MONTHLY BILL

The Monthly Bill for storage service shall be the sum of the

applicable Storage Charges as defined in Section 3.1, the ACA Unit

Charge, and an Authorized Overrun Charge, if applicable.

5. RESERVATIONS

Seller reserves the unilateral right from time to time to make

any changes to, or to supersede, the rates and charges and other

terms in this Rate Schedule and the other provisions of Seller's

FERC Gas Tariff, and the applicability thereof, subject to the

provisions of the Natural Gas Act, the Natural Gas Policy Act and

the Commission's Regulations thereunder.

6. GENERAL TERMS AND CONDITIONS

The following General Terms and Conditions are applicable to

storage service provided hereunder: