Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 11/01/1993, Docket: RS92- 13-004, Status: Effective

Original Sheet No. 180 Original Sheet No. 180 : Effective

GENERAL TERMS AND CONDITIONS (Continued)

3. PRESSURE

3.1 Pressure at the point(s) of receipt: Shipper shall cause the gas

to be tendered at the point(s) of receipt at a pressure sufficient

to enter Transporter's system against the pressures prevailing

from time to time, within the pressure range specified for each

point(s) of receipt as set forth in the Service Agreement.

3.2 Pressure at the point(s) of delivery: Transporter shall cause the

gas to be delivered at the point(s) of delivery hereunder at such

pressures, prevailing from time to time in Transporter's pipeline

system, within the pressure range specified for each point(s) of

delivery as set forth in the Service Agreement.

4. QUALITY

Except as otherwise provided below, all natural gas delivered to

Transporter at receipt point(s) shall conform to the following

specifications:

4.1 Non-gaseous constituents: The gas shall be commercially free from

solid or liquid matter, dust, gums, and gum-forming constituents

which might interfere with its merchantability or cause injury to

or interference with the proper operation of Transporter's

pipelines, meters, regulators and other appurtenances through

which it flows.

4.2 Oxygen: The gas shall not at any time have an oxygen content in

excess of .001 percent by volume, and the parties shall make every

reasonable effort to keep the gas free from oxygen.

4.3 Carbon dioxide: The gas shall not at any time have a carbon

dioxide content in excess of two percent (2%) by volume.

4.4 Liquids hydrocarbon content: The gas shall have a hydrocarbon

dew-point less than -5ø Fahrenheit at 800 psia, -10ø Fahrenheit at

1,000 psia, or -18ø Fahrenheit at 1,100 psia, or such higher

dew-point approved by Transporter as, without treatment by

Transporter, may be compatible with the operating conditions of

Transporter's pipeline.

4.5 Hydrogen sulphide: The gas shall not contain more than

one-quarter (1/4) grain of hydrogen sulphide per one hundred (100)

cubic feet.