Western Gas Interstate Company

Fourth Revised Volume No. 1

Effective Date: 07/01/1998, Docket: MT98- 12-000, Status: Effective

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

Superseding: Original Sheet No. 159

RATE SCHEDULE IT-N

INTERRUPTIBLE TRANSPORTATION SERVICE - NORTHERN DIVISION

(continued)

the proposed commencement date of service;

provided, however, if facilities are required, the

request may be made at an earlier date. All

completed Transportation Request Forms are to be

sent to:

Transportation and Exchange Services

Western Gas Interstate Company

211 North Colorado

Midland, TX 79701-4696

For Shipper's convenience, copies of the

Transportation Request Form are available upon

request from Western.

3.2 An IT-N Service Agreement shall be executed by

Shipper and Western following Western's acceptance

in writing of Shipper's request for service. In

the event the IT-N Service Agreement is not

executed by Shipper and returned within thirty

(30) days after Western tenders the Service

Agreement, Western shall consider the request for

service invalid.

4. DELIVERY AND RECEIPT POINTS:

4.1 Receipt Points: The Receipt Point(s) for all

gas transported by Western under this Rate

Schedule shall be at a mutually agreeable

interconnection between Western's facilities

and the facilities of Shipper or Shipper's

designee.

Western shall not be required under any

circumstances to receive gas at any Receipt

Point where the total quantity of gas for

transportation scheduled for receipt on any

day is less that required for the accurate