High Island Offshore System, L.L.C.

Third Revised Volume No. 1

Effective Date: 11/27/2005, Docket: RP06- 53-000, Status: Effective

Second Revised Sheet No. 201 Second Revised Sheet No. 201 : Effective

Superseding: First Revised Sheet No. 201

FORM OF RESERVE COMMITMENT AGREEMENT

THIS RESERVE COMMITMENT AGREEMENT (Agreement) is made and entered into as of the ______

day of _____________________, ____, by and between High Island Offshore System, L.L.C. a

limited liability company of the State of Delaware hereinafter referred to as

"Transporter" and ___________________________________, a _________________ corporation,

hereinafter referred to as "Shipper". Transporter and Shipper shall collectively be

referred to herein as the Parties.

ARTICLE I

DEFINITIONS

1.1 Committed Lease(s). For purposes of this Agreement, "Committed Lease(s)" shall

mean those OCS leases set forth on Exhibit A hereto. The estimated proven

recoverable reserves from the Committed Lease(s) attributable to Shipper's

and/or its affiliates' interest or aggregated with other Shipper's interests in

such lease(s) which are committed to Transporter pursuant to this Reserve

Commitment Agreement shall meet the eligibility requirements set forth in Rate

Schedule FT-2 of Transporter's F.E.R.C. Gas Tariff. Shipper shall provide to

Transporter supporting documentation for the reserves estimate, technical

support data, and production development plans, including facilities design

capacity, subject to a mutually agreeable confidentiality agreement to confirm

Shipper's estimated proven recoverable reserves and to demonstrate Shipper's

authority to dedicate the Committed Lease(s) under the terms of this Agreement.

1.2 Affiliate. For purposes of this Agreement, "affiliate" shall mean any entity

controlling, controlled by, or under common control with the relevant entity.

For purposes of this definition, the term "control" (including derivative terms)

means the direct or indirect ability to direct the management and policy of the

relevant entity, whether by ownership, control of voting interests, contract or

otherwise.