High Island Offshore System, L.L.C.

Third Revised Volume No. 1

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Effective Date: 12/15/2007, Docket: RP08- 65-000, Status: Effective

Third Revised Sheet No. 187 Third Revised Sheet No. 187 : Effective

Superseding: Second Revised Sheet No. 187

HIGH ISLAND OFFSHORE SYSTEM

FIRM SHIPPER

CAPACITY RELEASE FORM

Prearranged Transaction

-----------------------

Send to: High Island Offshore System

P. O. Box 4324

Houston, Texas 77210-4324

Attention: Manager, Contract Administration

Telecopier Number: (713) 381-7996

Verification Number: (713) 381-7940

Information Required for Valid Release Proposal

1. Releasing Shipper's Name and Address (The "Releasing Shipper" is the party

that proposes to reallocate all or part of its firm transportation capacity

rights on HIOS)

___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________

Attention:_________________________________________________________________

Telephone:(_________)________________ Facsimile:(_________)________________

Releasing Shipper's Rate Schedule Number or Contract Number _______________

2. Terms of Service

A. This request is for (check one):

_________ Permanent Capacity Release (remaining term of Releasing

Shipper's existing transportation agreement with HIOS)

_________ Temporary Capacity Release (portion of remaining term of

Releasing Shipper's existing transportation agreement with

HIOS)

_________ Interruption or Recall Capacity Release (If applicable,

complete Item B below -- if more space is required, please

attach separate sheet)