PetroLogistics Natural Gas Storage LLC

Original Volume No. 1

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

Original Sheet No. 22 Original Sheet No. 22

any adverse claims, title to such IPS Park Balance as Shipper was instructed to withdraw.

PetroLogistics' notice to Shipper may be given verbally, but shall be confirmed in writing via e-mail

or facsimile to the customer. In the event that PetroLogistics retains and takes title to any of Shipper's

gas pursuant to this section, PetroLogistics shall dispose of such gas by auction and shall credit the

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.

2.3 Shipper shall be permitted to combine the Interruptible injection, storage, or withdrawal and delivery

of gas available under this Rate Schedule with any service available under any other Rate Schedule set forth

in this FERC Gas Tariff; provided, however, such combined services shall be subject to Section 7 of the

General Terms and Conditions of this FERC Gas Tariff; and, provided, further, that priority for each such

service shall be determined by the respective priority of that service as set forth in Section 7 of the

General Terms and Conditions of this FERC Gas Tariff.

3. RATES AND CHARGES

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

The rates and charges paid by Shipper for IPS service under this Rate Schedule shall include the

applicable parking rate components set forth in the IPS Rate Statement and as described below:

(a) Interruptible Parking Charge. A charge for each Dth of Shipper's Maximum Park Quantity

specified in Exhibit B of the Hub Services Agreement.

(b) Interruptible Parking Injection Charge. A charge for each Dth of Shipper's gas injected into

PetroLogistics facilities pursuant to Section 2.1(a) of this Rate Schedule during a given invoice period.

PetroLogistics' facilities pursuant to Section 2.1(a) of this Rate Schedule during a given invoice period.

(d) Fuel Reimbursement. The amount of gas for fuel and losses determined in accordance with

Section 14 of the General Terms and Conditions of this FERC Gas Tariff and set forth in Exhibit B of

Shipper's Hub Services 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 Hub Services Agreement.

(f) Taxes. Shipper shall reimburse PetroLogistics for all applicable taxes as may be assessed

PetroLogistics, as set forth in Exhibit B of Shipper's Hub Services Agreement.

(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. INVOICE

The invoice for interruptible parking service shall reflect the applicable charges set forth

under Section 3 of this Rate Schedule at rates and terms set forth in Exhibit B of Shipper's Hub Services

Agreement.

5. TERM

The term for service under this Rate Schedule shall be as set forth in Exhibit B of Shipper's

Hub Services Agreement.

6. AUTHORIZATION, RATES, TERMS AND CHANGES

6.1 The Hub Services Agreement and the respective obligations of the parties hereunder are

subject to all