PetroLogistics Natural Gas Storage LLC

Original Volume No. 1

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

Original Sheet No. 221 Original Sheet No. 221

FORM OF SERVICE AGREEMENT FOR

CAPACITY RELEASE UMBRELLA AGREEMENT

UNDER RATE SCHEDULE FSS

(Continued)

Addendum No. ____

Is this capacity subject to right of recall? Yes ___ No ___

Recall Conditions (if applicable): _______________________________________

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Are there any restrictions on released capacity? Yes ___ No ___

Restrictions (if applicable): ____________________________________________

__________________________________________________________________________

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Was PetroLogistics' default bid evaluation criteria used? Yes ___ No ___

Evaluation Criteria (if applicable): ____________________________________

_________________________________________________________________________

___________________

Were contingent bids accepted? Yes ___ No ___

Contingency comments (if applicable): __________________________________

_________________________________________________________________________

_________________

Other Terms and Conditions of Release: [e.g., restrictions on release, third-party

agent and terms of third-party agency relationship, and agreements between Replacement

Shipper and Releasing Shipper]

_________________________________________________________________________

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This Addendum, entered into, pursuant to PetroLogistics' capacity release program and

to the executed Capacity Release Umbrella Agreement between PetroLogistics and the

Replacement Shipper, is theretofore made a part of and subject to the aforementioned

Capacity Release Umbrella Agreement.