Divestitures	9 Months Ended
Sep. 30, 2014
Discontinued Operations and Disposal Groups [Abstract]
Divestitures	DIVESTITURES In May 2014, we completed the sale of our Niobrara Asset to Southwestern Energy Company. The purchase price was subject to customary purchase price adjustments, which resulted in Southwestern paying us $95.6 million. We determined that the Southwestern Transaction did not represent a significant disposal of reserves under GAAP, therefore we reduced the balance of U.S. oil and gas properties by the amount of these proceeds and we did not recognize a gain or loss. In August 2013, we completed the sale of our Southern Alberta Asset to Synergy. The purchase price was $46.0 million, which was subject to customary purchase price adjustments, resulting in a final purchase price of $42.3 million. We determined that the Synergy Transaction did not represent a significant disposal of reserves, therefore our U.S. oil and gas properties were reduced by these proceeds and we did not recognize a gain or a loss. In April 2013, we sold an undivided 25% interest in our Barnett Shale Asset to TGBR for a purchase price of $485 million. The effective date of the transaction was September 1, 2012. The purchase price was subject to customary price adjustments, which resulted in a final purchase price of $464.0 million. We recognized a gain of $341.1 million, which was subsequently adjusted in the second half of 2013 to $339.3 million, including a revision of the gain calculation in the third quarter of 2013 of $8.0 million, before consideration of income taxes based on our determination that the Tokyo Gas Transaction represented a significant disposal of reserves under GAAP. Our U.S. oil and gas properties were ultimately reduced through December 31, 2013 by $110.7 million as a result of the Tokyo Gas Transaction. Note 3 to the consolidated financial statements in our 2013 Annual Report on Form 10-K contains additional information on other divestitures.

Divestitures

9 Months Ended

Sep. 30, 2014

Discontinued Operations and Disposal Groups [Abstract]

DIVESTITURES

In May 2014, we completed the sale of our Niobrara Asset to Southwestern Energy Company. The purchase price was subject to customary purchase price adjustments, which resulted in Southwestern paying us $95.6 million. We determined that the Southwestern Transaction did not represent a significant disposal of reserves under GAAP, therefore we reduced the balance of U.S. oil and gas properties by the amount of these proceeds and we did not recognize a gain or loss.

In August 2013, we completed the sale of our Southern Alberta Asset to Synergy. The purchase price was $46.0 million, which was subject to customary purchase price adjustments, resulting in a final purchase price of $42.3 million. We determined that the Synergy Transaction did not represent a significant disposal of reserves, therefore our U.S. oil and gas properties were reduced by these proceeds and we did not recognize a gain or a loss.

In April 2013, we sold an undivided 25% interest in our Barnett Shale Asset to TGBR for a purchase price of $485 million. The effective date of the transaction was September 1, 2012. The purchase price was subject to customary price adjustments, which resulted in a final purchase price of $464.0 million. We recognized a gain of $341.1 million, which was subsequently adjusted in the second half of 2013 to $339.3 million, including a revision of the gain calculation in the third quarter of 2013 of $8.0 million, before consideration of income taxes based on our determination that the Tokyo Gas Transaction represented a significant disposal of reserves under GAAP. Our U.S. oil and gas properties were ultimately reduced through December 31, 2013 by $110.7 million as a result of the Tokyo Gas Transaction.

Note 3 to the consolidated financial statements in our 2013 Annual Report on Form 10-K contains additional information on other divestitures.