High Island Offshore System, L.L.C.

Third Revised Volume No. 1

Effective Date: 09/01/2000, Docket: RP00-439-000, Status: Effective

First Revised Sheet No. 135 First Revised Sheet No. 135 : Effective

Superseding: Original Sheet No. 135

GENERAL TERMS AND CONDITIONS

(Continued)

pursuant to Section 17.6 may state that its acceptance is

contingent; provided, the Release Proposal allows the submission

of contingent bids pursuant to subsection 17.4 of this Section

17. The Replacement or Prearranged Shipper submitting the

contingent bid shall have a reasonable time, as specified by the

Releasing Shipper, within which to eliminate the contingency or

withdraw its bid. The Replacement or Prearranged Shipper may

eliminate the contingency by notifying HIOS of such elimination

via HIOS' Interactive Internet Website no later than 3:00 p.m.

Central Time on the business day prior to the nomination deadline

for the effective date of the release. If the Replacement or

Prearranged Shipper fails to notify HIOS that the contingency is

not eliminated within such time, such contingent bid shall be

deemed rejected by HIOS for failure to eliminate the contingency

in accordance with the Releasing Shipper's Release Proposal. Any

Replacement Shipper may make an upward revision to or withdraw

its bid during the bid period; provided, HIOS will allow any

Prearranged Shipper to match, in accordance with subsection

17.7(c), the "best bid" or "better offer" after the close of the

bid period; however, if the Replacement Shipper submits more than

one bid for the same capacity, the lower bid will automatically

expire. Replacement Shipper shall not have the opportunity to

use its ability to withdraw its bid in order to submit a lower

bid, if its submitted bid is higher than necessary to obtain the

capacity.