Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 08/01/1999, Docket: RP99-410-000, Status: Effective

First Revised Sheet No. 227A.1A First Revised Sheet No. 227A.1A : Effective

Superseding: Original Sheet No. 227A.1A

GENERAL TERMS AND CONDITIONS (Continued)

9. NOMINATION AND SCHEDULING PROCEDURES (Continued)

9.2.6 Scheduled quantities resulting from an Evening

Nomination that does not cause another service requester on

the subject transportation service provider to receive

notice that it is being bumped should be effective at 9:00

a.m. on gas day; and when an Evening Nomination causes

another service requester on the subject transportation

service provider to receive notice that it is being bumped,

the scheduled quantities should be effective at 9:00 a.m. on

gas day.

9.2.7 All nominations for the next gas day received

during the period after the Timely Nomination Cycle deadline

(11.45 a.m.) to the Evening Nomination Cycle deadline (6:15

p.m.) shall be considered by Transporter as if received

contemporaneously.

9.3 Intra-day 1 Nomination Cycle:

The Intra-day 1 Nomination Cycle times are Central Clock Time on

the day of gas flow.

9.3.1 10:00 a.m. - For nominations leaving control of the

nominating party.

9.3.2 10:15 a.m. - For receipt of nominations by the

Transporter.

9.3.3 10:30 a.m. - To send quick response.

9.3.3.1 With the exception of otherwise stated GISB

nominations deadlines, when a transportation service

provider receives a nomination document from a service

requester by the conclusion of a given quarter hour

period, the transportation service provider will send

to the service requester's designated site a

corresponding quick response document by the conclusion

of the subsequent quarter hour period. The quarter

hour periods will be defined to begin on the hour and

at 15, 30, and 45 minutes past the hour. A given

quarter hour will contain all transactions whose

receipt time is less than the beginning of the

subsequent quarter hour.