High Island Offshore System, L.L.C.

Third Revised Volume No. 1

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Effective Date: 04/01/2000, Docket: RP99-227-004, Status: Effective

Original Sheet No. 210 Original Sheet No. 210 : Effective

FORM OF RESERVE COMMITMENT AGREEMENT

(Continued)

EXHIBIT A

COMMITTED LEASE(S)

EXHIBIT B

Example: Permanent Release

Under Section 2.5

Assumptions:

- Year 2001

- Shipper A: - has MDQ of 100,000

Dth/day under its FT-2 Service Agreement

has then current production (as of 1/l/2001)

from Committed Lease(s) of 130,000 Dth/day, but

expects its production from such fields to

increase to 175,000 Dth/day beginning 1/l/2002,

to remain at 175,000 Dth/day through 12/31/2003

and to decline to 120,000 Dth/day beginning

1/l/2004 (and thereafter to remain at that

level)

Shipper has been receiving 20,000 Dth of IT and

10,000 Dth of Shipper's current production has

been interrupted for 90 consecutive days (thru

12/31/2000)

Procedures:

1. Shipper on 1/l/2001 requests permanent release of quantities of gas

in excess of quantities of FT-2 service available to Shipper with

respect to future delivery periods.

2. By 5/l/2001, Transporter notifies Shipper of the actions it proposes

to take and any additional MDQs available to Shipper under its FT-2

Service Agreement in such future delivery periods.