Petal Gas Storage Company

Original Volume No. 1

Effective Date: 08/16/1999, Docket: RP99-443-000, Status: Effective

First Revised Sheet No. 6 First Revised Sheet No. 6 : Effective

Superseding: Original Sheet No. 6

FSS RATE SCHEDULE

FIRM STORAGE SERVICE

(continued)

3. OVERRUN STORAGE SERVICE

(a) Customer may request Petal to inject quantities greater than

Customer's TMDIQ. If Petal has injection capacity available, Petal shall

inject such quantities and Customer shall pay Petal for such injections at

the Overrun Injection Rate under this rate schedule.

(b) Customer may request Petal to withdraw quantities greater than

Customer's TMDWQ. If Petal has withdrawal capacity available, Petal shall

withdraw such quantities and Customer shall pay Petal for such withdrawals

at the Overrun Withdrawal Rate under this rate schedule.

schedule if the quantity of Customer's gas in storage equals Customer's

firm Storage Capacity.

(d) Customer may not withdraw gas from storage in excess of the

quantity of Customer's gas which is stored.

(e) Petal shall have the right to interrupt all or part of the overrun

quantity nominated as the operation of its storage facilities may require

pursuant to Section 4 of the General Terms and Conditions of this tariff in

which event Petal shall notify Customer.

4. CAPACITY RELEASE

4.1 Right of Customers to Release Capacity. An FSS Customer may

release its right to capacity, in whole or in part, on a long or short term

basis, and on a firm or recallable basis. However, an FSS Customer may not

release its right to capacity, and a Replacement Customer may not

re-release such capacity, for a period extending beyond the term of the

original FSS Customer's FSS Agreement. A Replacement Customer with firm

capacity may re- release firm capacity on the same basis, and under the

same terms, as apply to the original FSS Customer. There is no limit on the

number of times the same firm capacity may be released.