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

Second Revised Sheet No. 0 High Island Offshore System, L.L.C.: Third Revised Volume No. 1

Second Revised Sheet No. 0 : Effective

Superseding: First Revised Sheet No. 0

F.E.R.C. GAS TARIFF

Third Revised Volume No. 1

(Supersedes Second Revised Volume No. 1)

of

HIGH ISLAND OFFSHORE SYSTEM, L. L. C.

Filed With The

FEDERAL ENERGY REGULATORY COMMISSION

Communications Covering Tariff Should be Addressed to:

Richard W. Porter, Director, Rates and Regulatory Affairs

HIGH ISLAND OFFSHORE SYSTEM, L. L. C.

P. O. Box 4324

Houston, Texas 77210-4324

Telephone: (713) 381-2526

Telecopier: (713) 381-2534

RPorter@eprod.com