Western Gas Interstate Company

Fourth Revised Volume No. 1

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Effective Date: 06/01/1997, Docket: RP97-160-001, Status: Effective

First Revised Sheet No. 235 First Revised Sheet No. 235 : Effective

Superseding: ORIGINAL SHEET NO. 235

GENERAL TERMS AND CONDITIONS

(continued)

Western quantities in excess of the quantities

received at the Delivery Point(s), Western

shall purchase the excess transportation

quantities free and clear of any adverse

claims by any party for an amount calculated

in the same manner as applicable to a

Positive Imbalance.

19.5 Balancing of Transportation Quantities - It shall

be responsibility of the Shipper to control and,

if necessary, adjust deliveries of gas to Western

for transportation and receipts of transportation

gas from Western in order to maintain a daily

balance of receipts and deliveries. Western shall

not be obligated to receive or deliver gas in

excess of the transportation quantities scheduled

by Western's dispatchers, nor shall Western be

obligated to deliver to Shipper at the Delivery

Point(s) transportation quantities in excess of

transportation quantities received for Shipper at

the Receipt Point(s) less Retention Quantities.

Western will monitor, to the best of its ability,

receipts and deliveries for each transportation

transaction and, based upon information available,

advise the Shipper of any imbalance situation

which has occurred or may occur unless corrective

action is taken. Upon notification, Shipper shall

be obligated to adjust receipts and deliveries of

transportation gas to correct or avoid any

imbalance. Any adjustment to receipts and

deliveries by Shipper, whether or not pursuant to

notification from Western, shall be coordinated

with Western's gas dispatchers and in accord with

the procedures set forth in this Sections 15, 17

and 19.

19.6 Waiver of Imbalance Charges -

(a) If Western determines that due to operational

constraints or otherwise it cannot reasonably

apply any or all of the provisions set forth

in Section 19.3 and 19.4 it may, at its

discretion, waive any or all such provisions;

provided, however, any such waiver shall be

on a non-discriminatory basis.