Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 02/16/2009, Docket: RP09-223-000, Status: Effective

Fifteenth Revised Sheet No. 376 Fifteenth Revised Sheet No. 376

Superseding: Fourteenth Revised Sheet No. 376

GENERAL TERMS AND CONDITIONS (Continued)

48. POOLING SERVICE (Continued)

48.2.1.10 Powder River Pool (Point ID No. 06090) -

contains the associated receipt points on Line Sections 13

and 14.

48.2.1.11 WBI Storage Pool (Point ID No. 06100) -

contains the associated receipt points for WBI Aggregate

Storage.

48.2.1.12 Grasslands Pool (Point ID No. 06110) -

contains the associated receipt points on Line Section 26.

48.2.2 The pool boundaries are reflected on Transporter's

system maps provided on Sheet Nos. 5-11 of this Tariff. Proposed

changes to the pool boundaries will be submitted to the FERC at

least 30 days prior to such changes being implemented.

48.2.3 The associated receipt points, as listed on the Pooling

Point link provided via Transporter's Interactive Website, will be

updated as needed to reflect the addition of a new receipt

point(s) and/or the abandonment of an existing receipt point(s)

within the pool boundaries.

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