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. 59 Second Revised Sheet No. 59 : Effective

Superseding: First Revised Sheet No. 59

FORM OF TRANSPORTATION AGREEMENT

(For Use Under Transporter's Rate Schedule IT)

(Continued)

5.1 Receipt Pressure. The minimum pressure at which Shipper may be requested to

deliver gas to Transporter at the Point(s) of receipt is set forth in Exhibits A

and B hereto.

5.2 Delivery Pressure. The minimum pressure at which Transporter is required to

cause gas to be delivered at the Point(s) of Delivery is set forth in Exhibits A

and B hereto.

ARTICLE VI

6.1 Notices. Except as herein otherwise provided, any notice, request, demand,

statement, bill, or payment provided for in this Agreement, or any notice which

either party may desire to give to the other, shall be in writing and shall be

considered as duly delivered when mailed by registered or certified mail return

receipt requested to the Post Office Address of the parties hereto as follows:

TRANSPORTER:

High Island Offshore System

P. O. Box 4324

Houston, Texas 77210-4324

Attn: Manager, Contract Administration

SHIPPER:

or such other address as either of the parties hereunder shall designate by

formal written notice. Routine communications including monthly statements

and payments, shall be considered as duly delivered when properly addressed

and mailed by either registered, certified or first class mail, postage

prepaid.