PetroLogistics Natural Gas Storage LLC

Original Volume No. 1

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Effective Date: 09/27/2010, Docket: RP10-1113-000, Status: Effective

First Revised Sheet No. 203 First Revised Sheet No. 203

Superseding: Superseding Original Sheet No. 203

Exhibit A to Service Agreement No. ___________

Under Rate Schedule FSS

Between

PetroLogistics Natural Gas Storage LLC

And _____________________(Shipper)

Maximum Storage Quantity (MSQ) _______________Dth

Base Gas Requirement Ratio 50% of Maximum Storage Quantity

Base Gas Supplied by Shipper _______________Dth

Maximum Daily Injection Quantity (MDIQ)

The quantity of Gas Shipper may inject pursuant to the Firm Storage Service Agreement at

any time is determined by the following schedule:

Storage Average Permissible Southern Texas Eastern BridgeLine Gas Florida Gas Inventory

Cavern Injection Rate Dow Natural Gas Crosstex Transmission Pipeline Transmission % Full

MMcfd MMcfd / psig MMcfd / psig MMcfd / psig MMcfd / psig MMcfd / psig MMcfd / psig 0-20%

___ / 2080 ___ / 715 ___ / 685 ___ / 620 ___ / 620 ___ / 600 21-40%

___ / 2080 ___ / 720 ___ / 690 ___ / 625 ___ / 625 ___ / 600 41-60%

___ / 2080 ___ / 675 ___ / 640 ___ / 610 ___ / 610 ___ / 600 61-80%

___ / 2080 ___ / 645 ___ / 625 ___ / 605 ___ / 605 ___ / 600 81-___%

___ / 2080 ___ / 645 ___ / 625 ___ / 605 ___ / 605 ___ / 600

Maximum Daily Withdrawal Quantity (MDWQ)

The quantity of Gas Shipper may withdraw pursuant to this Firm Storage Service Agreement at any

time is determined by the following schedule:

Storage Average Permissible Southern

Texas Eastern BridgeLine Gas Florida Gas Inventory Cavern Withdrawal Rate Dow Natural Gas

Crosstex Transmission Pipeline Transmission % Full

MMcfd MMcfd /psig MMcfd / psig MMcfd / psig MMcfd / psig MMcfd / psig MMcfd / psig 0-___%

___ / 800 ___/ 765 ___ / 790 ___ / 840 ___ / 840 ___ / 850

The Btu or Dth equivalent quantity injected or withdrawn shall be based upon the heating value

of Shipper's gas.