Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 11/02/1998, Docket: RP99- 2-000, Status: Effective

Original Sheet No. 227A.4 Original Sheet No. 227A.4 : Effective

GENERAL TERMS AND CONDITIONS (Continued)

9. NOMINATION AND SCHEDULING PROCEDURES (Continued)

9.9 Shipper(s) shall include the volume and estimated thermal

content of natural gas nominated to be tendered to each receipt

point and to be delivered to each delivery point. To the extent

Transporter deems necessary, it shall verify or cause to be

verified the availability at the point(s) of receipt and/or the

acceptability at the point(s) of delivery of such nominated

quantities. Transporter reserves the right to require revisions

to such nominated quantities upon such verification. Transporter

shall receive the quantity of gas that Shipper has nominated and

Transporter has scheduled at the receipt point(s) and shall

deliver the estimated thermally equivalent quantity of natural

gas, after appropriate reductions, if any, as identified in the

applicable Rate Schedule and/or Service Agreement, that Shipper

has nominated and Transporter has scheduled for delivery at each

delivery point. All nominations should include Shipper defined

begin dates and end dates. All nominations excluding intra-day

nominations should have roll-over options. Specifically,

Shippers should have the ability to nominate for several days,

months or years, provided the nomination begin and end dates are

within the term of Shipper's contract.

Prior to the date of initial delivery hereunder, and by the 15th

day of each month thereafter, Shipper shall provide Transporter

with a written schedule showing its best estimate of daily

quantities to be tendered to Transporter at each point

(The rest of this sheet has been intentionally left blank.)