Transwestern Pipeline Company

Second Revised Volume No. 1

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Effective Date: 02/01/1993, Docket: RS92- 87-003, Status: Effective

5th Revised Sheet No. 146 5th Revised Sheet No. 146 : Effective

Superseding: 4th Revised Sheet No. 146







1. Prior to the effective date of Shipper nominations at each

Interconnect Point, the Parties shall reconcile and confirm

nominations received by each Party from Shippers for whom the Parties

will be delivering or receiving gas at that point. Such

reconciliation and confirmation between the Parties shall be made

verbally with subsequent confirmation in writing, unless otherwise

mutually agreed to by the Parties. Except as provided in Section 3

below, any changes to such Scheduled Quantities during the month

shall be effective only if requested by Shipper or Company and agreed

to in writing by both Parties. Such written communication provided

by the Parties regarding changes shall be substantially in the form

set out on the attached Exhibit 2, or in any other form mutually

agreeable to the Parties. All nominations and confirmations must be

made in accordance with the requirements of Section 22 of the General

Terms and Conditions of Transporter's Tariff. Provided further, the

terms and provisions of this OBA shall be subject to Sections 1 -

Definitions; 2 - Quality; 4 - Measurement; and 5 - Measurement

Stations, of the General Terms and Conditions of Transporter's FERC

Gas Tariff, as may be revised from time to time.


2. The Parties intend that the volume of gas actually delivered and

received each day at each Interconnect Point will equal the Scheduled

Quantities (including Transport Fuel) for that point. Each Party

will allocate volumes which are to be delivered and received at an

Interconnect Point among the Shipper Agreements on its system

pursuant to the Scheduled Quantities received for that point. Any

Operational Imbalance created, when the actual physical flow is

different than the Scheduled Quantities (on a monthly basis), will be

the "Operational Imbalance," which will be the responsibility of the

Parties to eliminate pursuant to this Agreement.


3. Estimated operating quantities flowing at each Interconnect Point

shall be used on a daily basis during any current month to determine

the estimated Operational Imbalance at such Interconnect Point, with

physical flow adjustments to be made during that current month as

mutually agreed to by both Parties to attempt to maintain or achieve

an Operational Imbalance of zero at such point; provided, however,

nothing herein shall affect Transporter's right to unilaterally re-

schedule quantities upon 24-hour notice by Transporter to the Shipper

(except in the case of operational distress) under Section 22.3 of

the General Terms and Conditions of its FERC Gas Tariff, as may be

revised from time to time.