Petal Gas Storage, L. L. C.

Original Volume No. 1

Effective Date: 01/09/2010, Docket: RP10-229-000, Status: Effective

Second Revised Sheet No. 16 Second Revised Sheet No. 16

Superseding: First Revised Sheet No. 16

FSS-1 RATE SCHEDULE

FIRM STORAGE SERVICE

1. AVAILABILITY

This rate schedule is available to any customer for the purchase of firm

natural gas storage service from Petal, with lower scheduling priority for

injections or withdrawals, as agreed to by Petal and Customer and subject to

the following:

(a) Petal has determined that it has sufficient available and uncommitted

firm storage capacity to perform service requested by Customer;

(b) Customer and Petal have executed a firm storage service agreement under

this rate schedule;

service required for utilization of the storage service provided under

this rate schedule;

(d) Customer satisfies the creditworthiness criteria in accordance with

Section 3 of the General Terms and Conditions; and

(e) Petal has determined that service requested by Customer will not

interfere with efficient operation of its system or with service to

Rate Schedule FSS storage customers.

2. APPLICABILITY AND CHARACTER OF SERVICE

This rate schedule shall apply to all firm storage service rendered by Petal

to Customer pursuant to an executed firm storage service agreement.

Firm storage service rendered by Petal to Customer under this rate schedule

shall consist of:

(a) The daily injection of Customer's gas per Customer's nomination up to

Customer's Total Maximum Daily Injection Quantity ("TMDIQ") stated in

the executed firm storage service agreement with Customer, plus any

authorized overrun injection quantity, provided that in the event that

Petal and Customer have agreed to lower FSS-1 injection rights then

such injections shall occur only if Petal has available storage

injection capacity on its System on the applicable Day after scheduling

all nominations under Rate Schedule FSS, and further provided that

Customer has firm Storage Capacity available and delivers the nominated

quantity plus fuel to the Point(s) of Receipt;

(b) The storage of gas in amounts up to Customer's firm Storage Capacity;

and

Customer's gas per Customer's nomination up to Customer's Total Maximum

Daily Withdrawal Quantity ("TMDWQ"), plus any authorized overrun

withdrawal quantity, provided that in the event that Petal and Customer

have agreed to lower FSS-1 withdrawal rights then such withdrawals

shall occur only if Petal has available storage withdrawal capacity on

its System on the applicable Day after scheduling all nominations under

Rate Schedule FSS, and further provided that Customer has sufficient

gas stored in Customer's firm Storage Capacity.