Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

Effective Date: 03/13/2009, Docket: RP09-356-001, Status: Effective

Substitute Fourth Revised Sheet No. 740A Substitute Fourth Revised Sheet No. 740A

Superseding: Fourth Revised Sheet No. 740A

RECEIPT POINT

OPERATIONAL BALANCING AGREEMENT (Continued)

The Index Price shall be derived from the Daily Price Survey, Midpoint index

price, published in Platt's "Gas Daily" for either Colorado Interstate Gas

Company (CIG-N.syst.) or Northern Natural Gas Company (Ventura) index, during

the month following the month of termination. For excess receipt(s), the

applicable index price shall be the lowest daily price during the month

following the month of termination for either the CIG-N.syst. or the Ventura

index. For deficient receipts, the applicable index price shall be the

highest daily price during the month following the month of termination for

either the CIG-N.syst. or the Ventura index. All net cash-out revenues from

any remaining CIQ will be treated in accordance with the crediting of cash-out

revenue procedure defined in Section 15 of the General Terms and Conditions of

Transporter's Tariff.

5.6 Transporter shall maintain a record of all waivers granted to an

affiliate regarding the Receipt Point Operational Balancing Agreement, as set

forth in Sections 1.1, 5.1, 5.2 and 5.4. Such record shall be posted on

Transporter's Website. Transporter shall also maintain a record of the

identity of any Controlling Party who was refused a new ROBA and the basis for

Transporter's refusal. Such records shall be available for public inspection

at Transporter's office during normal business hours.

ARTICLE VI

OTHER OPERATING PROVISIONS

6.1 Operational Integrity - Nothing in this Agreement shall limit

Transporter's right to take action as may be required to adjust receipts of

gas in order to alleviate conditions which may threaten the integrity of its

system.

ARTICLE VII

NOTICES

7.1 Notices and Statements - Any notice or statement provided for in

this Agreement shall be in writing and shall be considered as having been

given if delivered personally or if mailed by United States mail, postage

prepaid, to the following addresses, respectively:

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