PetroLogistics Natural Gas Storage LLC

Original Volume No. 1

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

Original Sheet No. 116 Original Sheet No. 116

affected Shippers and point operators, and to provide scheduled quantities to bumped Parties (notice

to bumped parties), (central clock time on the day prior to flow). Scheduled quantities resulting

from Intraday 1 Nominations should be effective at 5:00 p.m. on gas Day.

(4) Intraday 2 Nomination Cycle: 5:00 p.m. for nominations leaving control of the nominating

party; 5:15 p.m. for receipt of nominations by PetroLogistics (including from TTTSPs); 5:30 p.m. to

send Quick Response; 8:00 p.m. for receipt of completed confirmations by transporter from upstream

and downstream connected parties; 9:00 p.m. for PetroLogistics to provide scheduled quantities to

affected Shippers and point operators (notice to bumped) (central clock time on the day prior to flow).

Scheduled quantities resulting from Intraday 2 Nominations should be effective at 9:00 p.m. on gas

Day. Bumping is not allowed during Intraday 2 Nomination Cycle.

(f) For intra-day nominations, PetroLogistics will conform to the provisions established by

Shipper's Transporter, including hourly nomination deadlines.

(1) Except as stated above in 6.3(e), intra-day nominations for Firm Storage Service will be given

priority over scheduled and flowing Interruptible Storage Service.

(2) Intra-day nominations do not replace the remainder of a standing nomination. There is no

need to re-nominate if the intra-day nomination modifies an existing nomination.

(g) Upon confirmation from Shipper's Transporter, PetroLogistics will commence injection or

withdrawal for Shipper's account.

(h) Nominations received after the nomination deadline will be scheduled after the nominations

received before the nomination deadline.

(i) Shipper shall be responsible for all penalties and charges assessed by an upstream or

downstream Transporter which arise from Shipper's failure to provide delivery of the gas

quantities provided.

(j) A Replacement Shipper may submit a nomination at the earliest nomination opportunity after

PetroLogistics has been notified of the capacity release.

(k) Routine Maintenance. PetroLogistics shall have the right to interrupt or discontinue service

in whole or in part, from time to time to perform routine repair and maintenance on PetroLogistics'

system as necessary to maintain the operational capability of PetroLogistics' Facility or to comply

with applicable regulatory requirements. PetroLogistics shall exercise due diligence to schedule

routine repair and maintenance so as to minimize disruptions of service to Shippers and shall

provide reasonable notice of the same to Shippers.

6.4 Shipper shall make available and tender any gas to be injected or wheeled hereunder and

receive and accept delivery, upon tender by PetroLogistics, any gas requested to be withdrawn from

storage or wheeled. The quantity of gas stored for the account of Shipper shall be increased or

decreased upon injection or withdrawal of gas from storage, as applicable. Shipper shall not

(unless otherwise agreed by PetroLogistics) receive or deliver gas, nor shall PetroLogistics be

obligated to receive gas or deliver gas on an hourly basis at rates of flow in excess of 1/24 of

Shipper's MDRQ or MDDQ, respectively. As determined by PetroLogistics in it sole and reasonable

judgment, flow rates above 1/24 of Shipper's MDRQ or MDDQ may be permitted.