Gulfstream Natural Gas System, L.L.C.

Original Volume No. 1

Effective Date: 05/01/2003, Docket: CP00- 6-009, Status: Effective

First Revised Sheet No. 159 First Revised Sheet No. 159 : Effective

Superseding: Original Sheet No. 159

GENERAL TERMS AND CONDITIONS

(CONTINUED)

20. SCHEDULES AND CONTRACTS SUBJECT TO REGULATION

This Tariff, including these General Terms and Conditions and the

respective obligations of the parties under an Agreement, are

subject to valid laws, orders, rules, and regulations of duly

constituted authorities having jurisdiction and are subject to

change from time to time by addition, amendment, or substitution

as provided by law.

21. OPERATIONAL BALANCING AGREEMENTS ("OBAs")

21.1 For the purposes of minimizing operational conflicts

between various natural gas facilities with respect to the

delivery of gas to and from Transporter's facilities,

Transporter may negotiate and execute on a not-unduly

discriminatory basis mutually agreeable OBAs with

appropriate parties that operate natural gas facilities

interconnecting with Transporter's system (any such party

will be referred to herein as the "OBA Party").

Transporter must enter into OBAs at all points of

interconnection between its system and the system of

another interstate or intrastate pipeline. Such OBAs shall

specify the Gas custody transfer procedures to be followed

by Transporter and the OBA Party for the confirmation of

scheduled quantities to be received by Transporter at

Receipt Point(s) and delivered by Transporter at Delivery

Point(s). Such OBA will provide that any variance between

actual quantities and scheduled quantities at the point

where the OBA is in place for any Day shall be resolved

pursuant to the terms of the OBA.

To facilitate such determination of variances on a timely

basis, Transporter and the OBA Party will agree in the OBA

on necessary measurement and accounting procedures.

Transporter shall post on 1LineSM those Receipt Point(s) and

Delivery Point(s) at which an OBA is in effect.