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. 221 First Revised Sheet No. 221 : Effective

Superseding: ORIGINAL SHEET NO. 221

GENERAL TERMS AND CONDITIONS

(continued)

Schedules or Transportation Rate Schedules by

Western to Buyer or Shipper on a firm basis shall

take priority over quantities of gas deliverable

by Western to Buyer or Shipper on an interruptible

basis. Firm transportation service will be

curtailed on a pro rata basis regardless of

whether the shipper is using primary or alternate

points. Western and Buyer or Shipper shall

operate their systems so as to provide protection

to domestic and commercial consumers being served

on a firm basis under Sales Rate Schedules or

Transportation Rate Schedules. So far as

operating conditions will permit, available

natural gas shall be dispatched in accordance with

the aforementioned priority and operating

guideline, in as equitable a manner as possible.

15.5 Curtailment Over-Run Penalty - If, during any

curtailment which Western does not terminate prior

to its originally announced expiration date, Buyer

or Shipper takes, without Western's advance

approval, a quantity of natural gas in excess of

the curtailment quantity allocated to such Buyer

or Shipper, said quantity shall constitute a

Curtailment Over-Run quantity; provided however,

that no gas delivered at any point where Western

has complete and unrestricted control of gas

deliveries shall be considered a Curtailment

Over-Run quantity. If Shipper or Buyer does not

correct the excess takes within 48 hours of notice

by Western thereto of such excess takes, for each

Dth of such Curtailment Over-Run quantity taken

by such Buyer or Shipper, that Buyer or Shipper

shall pay to Western a penalty of ten dollars

($10.00); provided, however, that Western shall

have the right, without the obligation, to waive

any penalty for a Curtailment Over-Run quantity

under this Section 15.5, to the extent that such a

waiver is not unduly discriminatory if for the

period for which the penalty was incurred,

deliveries to Western's other Buyers or Shippers

were not adversely affected by the taking of such

Curtailment Over-Run quantity and if Western's

pipeline operations were not impaired thereby.

The payment of a penalty for a Curtailment

Over-Run shall not under any circumstances be