Westgas Interstate, Inc.

First Revised Volume No. 1

Effective Date: 11/01/1995, Docket: RP95-437-000, Status: Effective

First Revised Sheet No. 100 First Revised Sheet No. 100 : Effective

Superseding: Original Sheet No. 100

Form of Service Agreement for Rate Schedule FT

continue to provide service under this Agreement

provided that such fees are not included in the

pipeline's rates in NGA section 4 proceedings.

Transporter shall issue to shipper in conjunction with

the Transporter's regular monthly statement, a

statement or indication of the regulatory fees

incurred by Transporter to be paid by Shipper.

ARTICLE IX

NOTICES

Except as otherwise provided, any notice, request, demand,

statement, bill, or payment provided for in this Agreement, or

any notice that either party may desire to give to the other,

shall be in writing and shall be considered as duly delivered

or furnished when mailed by registered or certified mail,

return receipt requested, or when transmitted in the most

timely manner available and appropriate to the following:

TRANSPORTER: SHIPPER:

Payments Only:

WestGas InterState, Inc.

1225 17th Street, Suite 800

Denver, CO 80202

Attention: Accounting

TRANSPORTER: SHIPPER:

All Others:

WestGas InterState, Inc.

1225 17th Street, Suite 1100

Denver, CO 80202

Attention: Gas Supply Planning

or such other address as either of the parties shall

designate in writing. Routine communications, including

monthly statements and payments, shall be considered as duly

delivered or furnished three days after being mailed by

registered or certified mail, return receipt requested, or

when transmitted in the most timely manner available and

appropriate.