Western Gas Interstate Company

Third Revised Volume No. 1

Effective Date: 06/01/1993, Docket: RS92- 53-003, Status: Effective

Revised Original Sheet No. 204 Revised Original Sheet No. 204 : Superseded

RATE SCHEDULE IT-DN

INTERRUPTIBLE TRANSPORTATION SERVICE - DEL NORTE DIVISION

(continued)

5.2 Western shall have the unilateral right to file with the

appropriate regulatory authority and make changes

authorized by such authority in (a) the rates and charges

applicable to its Rate Schedule IT-DN, (b) Rate Schedule

IT-DN pursuant to which this service is rendered; provided,

however that the interruptible character of service shall

not be subject to change hereunder, or (c) any provisions

of the General Terms and Conditions applicable to Rate

Schedule IT-DN. Western agrees that Shipper may protest or

contest the aforementioned filings, or seek authorization

from duly constituted regulatory authorities for such

adjustment of Western's existing FERC Gas Tariff as may be

found necessary in order to assure that the provisions in

(a), (b) or (c) above are just and reasonable.

5.3 For all natural gas service rendered hereunder, Shipper

shall pay Western each month the sum of the charges listed

below, if applicable:

(a) Commodity Charge: An amount determined as the

Commodity rate in dollars per MMBTU set forth from

time to time on the currently effective Sheet No. 11

of this Second Revised Volume No. 1, or superseding

tariff, multiplied by the quantity of gas transported

to or for the account of Shipper by Western during the

applicable Billing Month.

(b) Annual Charge Adjustment: The ACA Surcharge rate

multiplied by the quantity of gas delivered to or for

the account of Shipper by Western during the

applicable Billing Month.

Surcharge, if applicable, multiplied by the quantity

of gas delivered to or for the account of Shipper by

Western during the applicable Billing Month.

(d) Penalty Charges: Any Daily Scheduling Charges, Daily

Balancing Charges, Unauthorized Receipt Charges, or

Cumulative Monthly Balancing Charges, as defined in

Section 19 of the General Terms and Conditions, or any