Pine Prairie Energy Center, LLC

Original Volume No. 1

Effective Date: 09/01/2007, Docket: RP07-563-000, Status: Effective

Original Sheet No. 51 Original Sheet No. 51 : Effective

IB RATE SCHEDULE

INTERRUPTIBLE BALANCING SERVICE

(Continued)

(b) The storage of Gas in amounts up to Customer's

Interruptible balancing Maximum Storage Quantity, provided that

all Higher Priority Service storage and system needs have been

satisfied; and

of PPEC's Gas (as loan Gas) or Customer's Gas per Customer's

nomination to the Point(s) of Delivery which is the excess of (i)

the quantity of Gas delivered to Customer at any Point(s) of

Delivery per Customer's nomination(s), minus (ii) the quantity of

Gas received from Customer at any Point(s) of Receipt per

Customer's nomination(s), provided that all Higher Priority

Service nominations for withdrawal and system needs have been

satisfied, and that Customer has a quantity of Gas stored in

Interruptible Storage Inventory or available under its Maximum

Loan Quantity not less than the quantity the Customer shall have

nominated for withdrawal on such Day.

To the extent Interruptible storage capacity or Gas which is

being utilized by an Interruptible Customer hereunder is needed by

PPEC in order to satisfy PPEC's obligations to Firm Storage

Service Customers, PPEC shall require Customer to withdraw or

repay all, or any portion of, the IB Gas quantities held or loaned

by PPEC for the account of Customer, as specified by PPEC. Unless

PPEC otherwise agrees, Customer shall be required to make ratable

injections or withdrawals. If Customer fails to withdraw such IB

storage Gas, then PPEC may take, free and clear of any adverse

claims, title to such IB Storage Inventory as Customer was

instructed to withdraw. If Customer fails to inject such IB

storage Gas, then PPEC may purchase replacement Gas and Customer

shall pay PPEC the cost of the replacement Gas, which includes the

actual cost of replacement supplies and any costs or penalties

incurred by PPEC or its Customers as a result of Customer's

failure to deliver replacement Gas, plus all other costs incurred

by PPEC to secure such replacement Gas, including, but not limited

to, third-party marketing fees, transportation by third-party

pipeline companies, and all other costs for securing replacement

Gas. PPEC's notice to Customer may be given orally, but shall be

confirmed in writing via e-mail or facsimile to the Customer.

In the event that PPEC retains and takes title to any of

Customer's Gas pursuant to this Section, PPEC shall dispose of

such Gas by auction and shall credit the net proceeds received

from such auction in accordance with the provisions of Section 32

of the General Terms and Conditions of this FERC Gas Tariff.