PetroLogistics Natural Gas Storage LLC

Original Volume No. 1

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Effective Date: 06/03/2009, Docket: RP09-577-000, Status: Effective

Original Sheet No. 18 Original Sheet No. 18

by PetroLogistics in order to satisfy PetroLogistics' obligations to higher priority services or to

meet system needs, PetroLogistics shall require Shipper to withdraw all, or any portion of, the ISS

storage quantities held in storage by PetroLogistics for the account of Shipper as specified by

PetroLogistics. Unless PetroLogistics otherwise agrees, Shipper shall be required to make ratable

withdrawals. If Shipper fails to withdraw such ISS storage quantities, PetroLogistics may take,

free and clear of any adverse claims, title to such ISS Storage Inventory as Shipper was instructed

to withdraw. PetroLogistics' notice to Shipper may be given via telephone, but shall be confirmed

in writing via e-mail or facsimile to Shipper.

In the event that PetroLogistics retains and takes title to any of Shipper's Storage Inventory

pursuant to this Section 2.5, PetroLogistics shall dispose of such Storage Inventory by auction and

shall credit net proceeds received from such auction in accordance with the provisions of Section 27

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

3. RATES AND CHARGES

3.1 The charges to be paid by Shipper shall be mutually agreed to by PetroLogistics and

Shipper. The rates and charges paid by Shipper for interruptible storage service under this Rate

Schedule shall include the applicable storage rate components set forth in the ISS Rate Statement

and as described below.

(a) Injection Charge. A usage charge, as set forth in Exhibit A of Shipper's ISS Service

Agreement, for each Dth injected per Month, for Shipper's account, into PetroLogistics' facilities

pursuant to Section 2.1(a) of this Rate Schedule.

(b) Withdrawal Charge. A usage charge, as set forth in Exhibit A of Shipper's ISS Service

Agreement, for each Dth withdrawn per Month, for Shipper's account, from PetroLogistics' facilities

pursuant to Section 2.1(c) of this Rate Schedule.

(c) Capacity Charge. A charge, as set forth in Exhibit A of the Service Agreement, multiplied by

the absolute value(s) of Shipper's Storage Inventory(s) on each Day of the Month, as the case may be.

(d) Fuel Reimbursement. The amount of Shipper's gas which is reimbursed by Shipper in kind or

in dollars per Dth for fuel used and losses incurred per Month in the provision of service provided

in conjunction with the Agreement, as set forth in Exhibit A of Shipper's ISS Service Agreement.

(e) Regulatory Fees and Charges. Shipper shall reimburse PetroLogistics for all fees and charges,

as required by the Commission or any other regulatory body, that are related to service provided

under this Rate Schedule, as set forth in Shipper's ISS Service Agreement.

(f) Taxes. Shipper shall reimburse PetroLogistics for all property or other taxes associated

with the quantities held for Shipper in storage under this Rate Schedule. PetroLogistics shall

invoice Shipper periodically for all taxes, if any, attributable to the injection, storage or

withdrawal of gas.

(g) Electric Power Costs for Compression. Shipper shall reimburse PetroLogistics for its actual

pro rata cost (without markup) of electric power for compression based on Shipper's receipt

quantities.

4. MONTHLY BILL

The monthly bill for interruptible storage service shall reflect the applicable changes set forth

under Section 3 of this Rate Schedule at rates set forth in Shipper's ISS Service Agreement.

5. TERM

The term for service under this Rate Schedule shall be as set forth in Shipper's ISS Service Agreement.