Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 05/05/2006, Docket: RP00-107-010, Status: Effective

Sixth Revised Sheet No. 252A Sixth Revised Sheet No. 252A : Effective

Superseding: Fifth Revised Sheet No. 252A

GENERAL TERMS AND CONDITIONS (Continued)

15. BALANCING AND NOMINATION VARIANCE PROCEDURES (Continued)

15.15 MDDQ Unauthorized Overrun Penalties:

15.15.1 MDDQ Unauthorized Overrun penalties will only apply to

any affected delivery point(s) during times when the delivery

point(s), and/or associated line section or subsystem is in

allocation and/or when the delivery point(s), and/or associated

line section, or subsystem has been interrupted and/or a

situation, as described in Subsection 16.2 of these General Terms

and Conditions, exists at the delivery point(s), and/or associated

line section, or subsystem. Transporter will notify affected

Shippers during the scheduling process, as described in Section 9

of these General Terms and Conditions, of such allocation,

interruption or critical situation by an acceptable electronic

communication mechanism.

15.15.2 Rate Schedule FT-1 quantities taken at a delivery

point(s) which exceed the applicable MDDQ, as adjusted pursuant to

the CAP, by more than the greater of two (2) percent or forty (40)

dkt, and that have not been authorized pursuant to Section 6 of

Rate Schedule FT-1, will be treated as MDDQ Unauthorized Overruns

and charged five (5) times the unauthorized overrun Index Price.

The unauthorized overrun Index Price shall consist of the

arithmetic average of the posted index prices in the "Inside FERC

Gas Market Report" for Colorado Interstate Gas Company (CIG-Rocky

Mountains) and Northern Natural Gas Company (Ventura, Iowa), as

established for the first day of the month following the month in

which the MDDQ Unauthorized Overrun occurred.

15.15.3 MDDQ Unauthorized Overrun Penalty Credits: Transporter

shall credit to Qualifying Rate Schedule FT-1 Shipper(s) any MDDQ

Unauthorized Overrun Penalty revenues received from any of

Transporter's Shippers, net of Transporter's costs. For purposes

of this Subsection, Qualifying Rate Schedule FT-1 Shippers shall

include those Shippers who did not themselves incur any MDDQ

Unauthorized Overrun Penalty obligation under Subsection 15.15.2

during the month in which the MDDQ Unauthorized Overrun Penalty

was incurred. MDDQ Unauthorized Overrun Penalty revenues to be

credited shall be calculated by summing the revenues received for

MDDQ Unauthorized Overrun Penalties less any costs incurred by

Transporter. If the sum is positive (net MDDQ Unauthorized

Overrun Penalty revenues exceed net costs) Transporter shall

credit such excess revenues to the Qualified Shipper(s).