Northern Border Pipeline Company

First Revised Volume No. 1

Effective Date: 09/08/2008, Docket: RP08-489-000, Status: Effective

Twenty-Fourth Revised Sheet No. 156 Twenty-Fourth Revised Sheet No. 156

Superseding: Twenty-Third Revised Sheet No. 156

RATE SCHEDULE IT-1

INTERRUPTIBLE TRANSPORTATION SERVICE

3. RATES AND PAYMENT

3.1 Rates

The applicable rates for service under this rate schedule

are set forth on the currently effective Statement of Rates

of this Tariff and are hereby incorporated herein.

For all natural gas service rendered hereunder, Shipper shall

pay Company each month the sum of the charges listed below:

Commodity Charge - The daily commodity rate under Rate

Schedule IT-1 multiplied by the quantity of gas in

100 Dekatherm-miles received by Company under Rate

Schedule IT-1 for Shipper in such Production Month.

Other Rates and Charges:

Annual Charge Adjustment - The Annual Charge Adjustment

is defined and computed in accordance with

Subsection 16.1 of the General Terms and Conditions.

Compressor Usage Surcharge - The Compressor Usage

Surcharge is defined and computed in accordance with

Section 45 of the General Terms and Conditions of

Company's FERC Gas Tariff.

Third Party Charges - In addition to any applicable

rates and charges assessed pursuant to this Rate

Schedule, Company may charge Shipper, on whose behalf

Company has acquired off-system service applicable to

Section 39 of the General Terms and Conditions of

Company's FERC Gas Tariff, the rates and charges

Company is obligated to pay third party(s) for such

off-system service. Such charges may include, but are

not limited to, daily reservation and commodity charges

and applicable surcharges, fuel and power charges or

retention, compression fees, balancing or storage fees,

measurement fees, processing fees and/or facility

charges that are assessed by the third party. Such

charges shall be set forth as separate items on the

monthly invoices rendered to Shipper.