Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

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

Original Sheet No. 227B.1 Original Sheet No. 227B.1 : Effective

GENERAL TERMS AND CONDITIONS (Continued)

9. NOMINATION AND SCHEDULING PROCEDURES (Continued)

9.11 Intra-day nominations can be used to request increases or

decreases in total flow, changes to receipt points, or changes to

delivery points of scheduled gas.

9.12 Intra-day nominations do not rollover (i.e. intra-day

nominations span one day only). Intra-day nominations do not

replace the remainder of a standing nomination. However, there

is no need to re-nominate if the intra-day nomination modifies an

existing nomination.

9.13 All nominations, including intra-day nominations, should

be based on a daily quantity; thus, an intra-day nominator need

not submit an hourly nomination. Intra-day nominations should

include an effective date and time. The interconnected parties

should agree on the hourly flows of the intra-day nomination, if

not otherwise addressed in Transporter's contract or Tariff.

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