Petal Gas Storage Company

Original Volume No. 1

Effective Date: 06/01/1998, Docket: RP97-280-001, Status: Effective

First Revised Sheet No. 122 First Revised Sheet No. 122 : Effective

Superseding: Original Sheet No. 122

GENERAL TERMS AND CONDITIONS

(continued)

are in terms of such unit. Notwithstanding the foregoing, it is

agreed that, for all purposes, the dth content of the gas received

and delivered by Petal hereunder shall be measured on an "as

delivered" basis rather than a fully saturated or "wet" basis.

11.2 Petal shall install, maintain and operate, or cause to be

installed, maintained and operated, the measurement facilities

required hereunder. Said measurement facilities shall be so

equipped with orifice meters, recording gauges, or other types of

meters of standard make and design commonly acceptable in the

industry, as to accomplish the accurate measurement of gas

delivered hereunder. The retrieval of data, calibrating and

adjustment of meters shall be done by Petal or its agent.

12. BILLINGS AND PAYMENTS

12.1 Invoice. On or before the ninth (9th) Business Day of each month,

Petal shall provide Customer (including a Replacement Customer)

an invoice (which may be transmitted by fax) setting forth (i) the

Capacity and Deliverability Charges due for the current month (or

applicable Standby Charges); (ii) the total quantity of gas

received from and delivered to Customer hereunder during the

preceding month(s), with applicable Point(s) of Receipt and

Point(s) of Delivery properly identified, and the amount

(Injection, Withdrawal and Overrun Charges( due therefor; and

(iii) the amount of Customer's gas in storage as of the close of

the preceding month and information sufficient to explain and

support any adjustments made by Petal in determining the amount

billed. If actual volumes are not available by the ninth (9th)

business day of the month, Petal may invoice based on estimated

volumes, based on best available data, subject to adjustment to

actuals at a later date.

12.2 Application of Payments for Released Capacity. Payments to Petal

by a Replacement Customer for released capacity shall by applied

as follows: (i) Petal shall retain amounts equal to the

Releasing Customer's rates for Storage Injection Charge, Overrun

Injection Charge, Storage Withdrawal Charge, and Overrun

Withdrawal Charge multiplied by the Replacement Customer's

volumes; (ii) Petal will credit the balance to Capacity and

Deliverability Charges due from the