Northern Border Pipeline Company

First Revised Volume No. 1

Effective Date: 05/01/2006, Docket: RP06- 72-000, Status: Suspended

Sixth Revised Sheet No. 181 Sixth Revised Sheet No. 181 : Suspended

Superseding: Fifth Revised Sheet No. 181

RATE SCHEDULE T-1B

FIRM BACKHAUL SERVICE

3. RATES (Continued)

3.3 Negotiated Rates

Notwithstanding the foregoing provisions of this Section 3,

Company and Shipper may mutually agree to Negotiated Rates

for service hereunder as provided in Section 38 of the

General Terms and Conditions. The ACA surcharge and the

Compressor Usage Surcharge pursuant to Subsection 3.1 will

be applied to Shippers paying Negotiated Rates in the same

manner as they are applied to Shippers paying Recourse

Rates.

3.4 Shipper's Obligation to Pay

All Shippers whose Billing Commencement Dates have occurred

shall be obligated to pay to Company in respect of each

Production Month their respective monthly billing invoices

determined in accordance with Section 3 herein for each

Production Month and billed to Shipper in accordance with

Section 6 of the General Terms and Conditions.

3.5 Revenue Credits

For releases and re-releases for service in accordance with

this Rate Schedule and Subsection 27.2, Company shall

credit in accordance with Section 6 of the General Terms

and Conditions the reservation charge revenue received from

a Shipper under this Rate Schedule directly to the

Releasing Shipper whose capacity has been released on a

firm basis and matched with such Shipper.

With respect to a Rate Schedule T-1B Shipper, no reductions

in Shipper's billing invoice for revenue sharing credits

pursuant to Subsection 6.2 of the General Terms and

Conditions, shall be made.

4. TERMINATION

A T-1B Service Agreement shall terminate under the terms of the

T-1B Service Agreement.