ACQUISITIONS	12 Months Ended
Dec. 31, 2012
ACQUISITIONS
ACQUISITIONS	NOTE 6 ACQUISITIONS GTN and Bison Equity Investment Acquisitions On May 3, 2011, the Partnership acquired 25 percent membership interests in GTN and Bison from subsidiaries of TransCanada. The GTN pipeline system extends from an interconnection near Kingsgate, British Columbia, Canada at the Canadian border to a point near Malin, Oregon at the California border. The Bison pipeline system extends from the Powder River Basin near Gillette, Wyoming to Northern Border's pipeline system in Morton County, North Dakota. GTN and Bison are both Delaware limited liability companies regulated by FERC, and they are operated by subsidiaries of TransCanada. The total purchase price of the Acquisitions was $605 million (the Purchase Price). The Purchase Price consisted of (i) $405 million for the GTN membership interest (less $81 million, which reflected 25 percent of GTN's outstanding debt at the time of the acquisition), (ii) $200 million for the membership interest in Bison (less a $9 million future capital commitment to complete the Bison pipeline) (iii) $23 million at closing and (iv) $1 million in working capital adjustments paid in the fourth quarter of 2011. The resulting $539 million paid by the Partnership was financed through a combination of (i) an issuance of 7,245,000 common units offered to the public at $47.58 per common unit resulting in net proceeds of $331 million, (ii) a draw of $61 million on the Partnership's committed $400 million bridge loan facility, (iii) a draw of $125 million on the Partnership's then existing $250 million senior revolving credit facility, (iv) a capital contribution from the General Partner of $7 million, which was required to maintain the General Partner's effective two percent general partner interest in the Partnership, and (v) approximately $15 million of cash on hand. The Acquisitions were accounted for as transactions between entities under common control, whereby the equity investments in both GTN and Bison were recorded at TransCanada's carrying values, and the total excess purchase price paid of $131 million was recorded as a reduction to Partners' Equity. Yuma Lateral Asset Acquisition Pursuant to an amendment to the acquisition agreement between the Partnership and TransCanada relating to the Partnership's acquisition of North Baja, the partnership agreed to make an additional payment of up to $2 million to TransCanada in the event that TransCanada secured additional contracts for transportation service before December 31, 2010. TransCanada secured an additional contract in July 2010 and, as a result, the Partnership paid $2 million to TransCanada on March 25, 2011 when the facilities associated with the contract were completed.

ACQUISITIONS

12 Months Ended

Dec. 31, 2012

NOTE 6 ACQUISITIONS

GTN and Bison Equity Investment Acquisitions

On May 3, 2011, the Partnership acquired 25 percent membership interests in GTN and Bison from subsidiaries of TransCanada.

The GTN pipeline system extends from an interconnection near Kingsgate, British Columbia, Canada at the Canadian border to a point near Malin, Oregon at the California border. The Bison pipeline system extends from the Powder River Basin near Gillette, Wyoming to Northern Border's pipeline system in Morton County, North Dakota. GTN and Bison are both Delaware limited liability companies regulated by FERC, and they are operated by subsidiaries of TransCanada.

The total purchase price of the Acquisitions was $605 million (the Purchase Price). The Purchase Price consisted of (i) $405 million for the GTN membership interest (less $81 million, which reflected 25 percent of GTN's outstanding debt at the time of the acquisition), (ii) $200 million for the membership interest in Bison (less a $9 million future capital commitment to complete the Bison pipeline) (iii) $23 million at closing and (iv) $1 million in working capital adjustments paid in the fourth quarter of 2011. The resulting $539 million paid by the Partnership was financed through a combination of (i) an issuance of 7,245,000 common units offered to the public at $47.58 per common unit resulting in net proceeds of $331 million, (ii) a draw of $61 million on the Partnership's committed $400 million bridge loan facility, (iii) a draw of $125 million on the Partnership's then existing $250 million senior revolving credit facility, (iv) a capital contribution from the General Partner of $7 million, which was required to maintain the General Partner's effective two percent general partner interest in the Partnership, and (v) approximately $15 million of cash on hand.

The Acquisitions were accounted for as transactions between entities under common control, whereby the equity investments in both GTN and Bison were recorded at TransCanada's carrying values, and the total excess purchase price paid of $131 million was recorded as a reduction to Partners' Equity.

Yuma Lateral Asset Acquisition

Pursuant to an amendment to the acquisition agreement between the Partnership and TransCanada relating to the Partnership's acquisition of North Baja, the partnership agreed to make an additional payment of up to $2 million to TransCanada in the event that TransCanada secured additional contracts for transportation service before December 31, 2010. TransCanada secured an additional contract in July 2010 and, as a result, the Partnership paid $2 million to TransCanada on March 25, 2011 when the facilities associated with the contract were completed.