High Island Offshore System, L.L.C.

Third Revised Volume No. 1

Effective Date: 04/07/1999, Docket: GT99- 17-000, Status: Effective

Original Sheet No. 56 Original Sheet No. 56 : Effective

RATE SCHEDULE IT

INTERRUPTIBLE TRANSPORTATION SERVICE

(Continued)

continuation of service under an existing Agreement.

Transporter shall make all information filings required

by the Commission' regulations with respect to any

charges at less than the Maximum Rate. Whenever

Transporter adjusts the rate to be charged to a

Shipper pursuant to this Section 4.7, notice thereof

shall be given to Shipper not less than seventy-two (72)

hours prior to the effective date of such adjustment.

5. WARRANTY

Shipper warrants for itself, its successors and assigns, that it

will have at the time of delivery of Gas and Associated Liquids

for transportation hereunder good title to deliver such Gas and

Associated Liquids to HIOS and accept redelivery at Point or

Points of Delivery. HIOS warrants for itself, its successors and

assigns, that it will, at the time of delivery to others of the Gas

and Associated Liquids transported hereunder, have good right to

deliver such Gas and Associated Liquids to others. Shipper warrants

for itself, its successors and assigns, that the Gas it warrants

hereunder shall be free and clear of all liens, encumbrances, and

claims whatsoever, that it will indemnify HIOS and save HIOS

harmless from and against all suits, actions, debts, accounts,

damages, costs, losses, and expenses, including HIOS' actual

attorney's fees, and cost of defense arising from or out of any

adverse claims of any and all persons to said Gas and/or to

royalties, taxes, license fees, or charges thereon which are

applicable to such delivery of Gas and that it will indemnify HIOS

and save it harmless from all taxes or assessments which may be

levied and assessed upon such delivery and which are by law payable

by, and the obligation of, the party making such delivery.