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. 253 Original Sheet No. 253

FORM OF SERVICE AGREEMENT FOR

CAPACITY RELEASE UMBRELLA AGREEMENT UNDER

RATE SCHEDULES FSS, NNSS, FP AND FL

(Continued)

Addendum No.____(Cont.)

Capacity Release

Rate Schedule

Is this capacity subject to right of recall? Yes _____ No_____

Recall Conditions (if applicable):

_______________________________________________________________

_______________________________________________________________

_______________________________________________________________

Are there any restrictions on released capacity? Yes____ No____

Restrictions (if applicable):

_______________________________________________________________

_______________________________________________________________

_______________________________________________________________

Were TRES PALACIOS' 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 Customer and

Releasing Customer]

_______________________________________________________________

_______________________________________________________________

_______________________________________________________________

This Addendum, entered into, pursuant to TRES PALACIOS' capacity

release program and to the executed Capacity Release Umbrella

Agreement between TRES PALACIOS and the Replacement Customer, is

hereby made a part of and subject to the aforementioned Capacity

Release Umbrella Agreement.