Tres Palacios Gas Storage LLC

Original Volume No. 1

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Effective Date: 08/01/2008, Docket: RP08-424-000, Status: Effective

Original Sheet No. 25 Original Sheet No. 25

NNSS RATE SCHEDULE

NO-NOTICE STORAGE SERVICE

1. AVAILABILITY

This Rate Schedule is available to any Customer for the

purchase of firm no-notice Gas storage service from TRES PALACIOS,

provided that:

(a) TRES PALACIOS has determined that it has sufficient

operationally available and uncommitted firm storage capacity and

injection and withdrawal capacity to perform the no-notice service

Customer has requested;

(b) Customer and TRES PALACIOS have executed a No-

Notice Storage Service Agreement under this Rate Schedule;

(c) Customer and TRES PALACIOS have executed a Firm

Storage Service Agreement under Rate Schedule FSS of this FERC Gas

Tariff;

(d) Customer accepts responsibility for arranging any

transportation service required for utilization of the storage

service provided under this Rate Schedule, including making any

necessary arrangements with pipeline Transporter(s) for Customer

to utilize no-notice service at one or more delivery points on the

Transporter's (s') pipeline system(s) (any such arrangements for

utilization of no-notice service must be acceptable to TRES

PALACIOS, in its reasonable judgment);

(e) Availability of service under this Rate

Schedule shall be subject to a determination by TRES PALACIOS that

its performance of the service requested hereunder shall not cause

a reduction in TRES PALACIOS' ability to provide Firm Storage

Services under currently effective Storage Service Agreements; and

(f) Service under this Rate Schedule may not be

available to the extent that TRES PALACIOS would be required to

construct, modify, expand or acquire any facilities to enable TRES

PALACIOS to perform the requested services.

2. APPLICABILITY AND CHARACTER OF SERVICE

This Rate Schedule shall apply to all no-notice service

rendered by TRES PALACIOS to Customer through use of TRES

PALACIOS' storage facility located in Texas pursuant to an

executed No-Notice Storage Service Agreement. No-notice service

is combined with a Customer's rights to Firm Storage Service under

an executed Firm Storage Service Agreement for service under Rate

Schedule FSS to allow Customer the added flexibility of

automatically netting any deviations from its nominations against

Customer's Storage Inventory.

2.1 No-notice storage service rendered to Customer under

this Rate Schedule shall allow Customer to alter its injections or

withdrawals, at points specified in Customer's Rate Schedule NNSS

Storage Service Agreement, of Gas from levels nominated by

Customer pursuant to Section 8 of the General Terms and

Conditions, including a nomination of zero, by an amount, plus or

minus, up to Customer's No-Notice Maximum Daily Quantity without

complying with the deadlines for revised nominations under Section

8 of the General Terms and Conditions; provided: