Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 06/02/2006, Docket: RP06-344-000, Status: Effective

Third Revised Sheet No. 182 Third Revised Sheet No. 182 : Effective

Superseding: Second Revised Sheet No. 182

GENERAL TERMS AND CONDITIONS (Continued)

4. QUALITY (Continued)

applicable quality specifications shall not be construed to eliminate,

or limit in any manner, the rights and obligations existing under any

other provisions of the Service Agreement.

4.15 Unless otherwise mutually agreed upon, the cost of any

additional gas analysis and quality control equipment, including

installation costs and any associated tax effects, which Transporter, in

its reasonable discretion, determines is required to be installed to

monitor the quality of gas received at a point(s) of receipt, shall be

borne by Point Operator. Such equipment shall be owned and maintained

by Transporter. Transporter's decision to require the installation of

the necessary equipment to protect its system integrity at a receipt

point will be exercised in a non-discriminatory manner.

5. MEASUREMENT

5.1 Measuring station: Unless otherwise agreed upon by Transporter

and the Point Operator of the receipt and/or delivery point hereunder,

Transporter shall install and maintain an orifice meter, a rotary meter,

a turbine meter or a diaphragm meter of standard make at the point(s) of

receipt and delivery, together with all mechanical or Electronic

Correcting Device (ECD) equipment required to measure accurately the gas

received, transported and delivered hereunder. Unless otherwise

mutually agreed upon, the cost of such equipment, including installation

costs and any associated tax effects, shall be borne by Point Operator.

Such equipment shall be owned and maintained by Transporter.

Transporter shall cause the chart on all gas measurement equipment to be

changed, or mechanical or electronic indices read, by either Transporter

or Point Operator (where economical) on a daily basis or at intervals no

longer than once every eight (8) days unless otherwise mutually agreed

upon; however, all gas measurement charts shall be changed, or indices

read as near as practical to the beginning of the first day of each

month.

5.1.1 Unless otherwise mutually agreed upon, the cost of any

additional measurement equipment, including installation costs

and any associated tax effects, which Transporter, in its

reasonable discretion, determines is required to be installed

shall be borne by the Point Operator. Such equipment shall be

owned and maintained by Transporter. Transporter's decision to

require the installation of the necessary measurement equipment

will be exercised in a non-discriminatory manner.