Northern Border Pipeline Company

First Revised Volume No. 1

Effective Date: 09/09/2009, Docket: RP09-880-000, Status: Effective

Original Sheet No. 307 Original Sheet No. 307

GENERAL TERMS AND CONDITIONS

46. OPERATIONAL PURCHASES AND SALES OF GAS

46.1 Applicability

Company may purchase and/or sell gas to the extent necessary

to: (i) balance Company Use Gas; (ii) maintain system

pressure and line pack; (iii) manage imbalance quantities;

(iv) perform other operational functions of Company in

connection with transportation and other similar services;

and (v) otherwise protect the operational integrity of

Company's pipeline system. Any such purchases or sales

shall be made on an unbundled basis. Operational purchases

or sales shall have a lower transportation priority than

firm service.

The sale or purchase of natural gas shall occur at any

Receipt Point or Delivery Point on Company's pipeline system

or at points located within any off-system capacity held by

Company on other systems. Such purchases or sales shall be

authorized pursuant to Company's blanket certificate and

will be made on a non-discriminatory basis.

46.2 Solicitation of Bids

Company shall post for bid its operational purchases and/or

sales on its public Internet web site. Such posting shall

include the following information: 1) the level of daily

quantities and whether such purchase and/or sale quantities

shall be made on a firm or interruptible basis; 2) the

requested effective date and term of the purchase and/or

sale; 3) the names of the applicable Receipt Point(s) or

Delivery Point(s); 4) method for determining best bid(s);

5) time period for accepting and awarding bid(s); and 6) any

additional information as may be required by Company.