Natural Gas and Oil Property Divestitures (Tables)

12 Months Ended

Dec. 31, 2013

Drilling And Completion Costs Associated To Joint Ventures [Table Text Block]

For accounting purposes, initial cash proceeds from these joint venture transactions were reflected as a reduction of natural gas and oil properties with no gain or loss recognized. The transactions are detailed below.



Primary Play	Joint Venture Partner^(a)	Joint Venture Date	Interest Sold	Initial Proceeds^(b)			Total Drilling Carries			Total Initial Proceeds and Drilling Carries		Drilling Carries Remaining^(c)
				($ in millions)
Mississippi Lime	Sinopec	June 2013	50.0%	$	949	^(d)	$	—		$	949	$	—
Utica	TOT	December 2011	25.0%	610			1,422		^(e)	2,032		596
Niobrara	CNOOC	February 2011	33.3%	570			697		^(f)	1,267		135
Eagle Ford	CNOOC	November 2010	33.3%	1,120			1,080			2,200		—
Barnett	TOT	January 2010	25.0%	800			1,403			2,203		—
Marcellus	STO	November 2008	32.5%	1,250			2,125			3,375		—
Fayetteville	BP	September 2008	25.0%	1,100			800			1,900		—
Haynesville & Bossier	FCX	July 2008	20.0%	1,650			1,508			3,158		—
				$	8,049		$	9,035		$	17,084	$	731

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(a)	Joint venture partners include Sinopec International Petroleum Exploration and Production (Sinopec), Total S.A. (TOT), CNOOC Limited (CNOOC), Statoil (STO), BP America (BP) and Freeport-McMoRan Copper & Gold (FCX), formerly known as Plains Exploration & Production Company.


(b)	Excludes closing and post-closing adjustments.


(c)	As of December 31, 2013.


(d)	Excludes $71 million of net proceeds (or 7% of the total transaction) expected to be received pursuant to certain post-closing adjustments and approximately $90 million received at closing for closing adjustments.


(e)	The Utica drilling carries cover 60% of our drilling and completion costs for Utica wells drilled and must be used by December 2018. We expect to fully utilize these drilling carry commitments prior to expiration. See Note 4 for further discussion of the Utica drilling carries.


(f)	The Niobrara drilling carries cover 67% of our drilling and completion costs for Niobrara wells drilled and must be used by December 2014. We expect to fully utilize these drilling carry commitments prior to expiration.

VPP Transactions [Table Text Block]

Our outstanding VPPs consist of the following:



					Volume Sold
VPP #	Date of VPP	Location	Proceeds		Natural Gas	Oil	NGL	Total
			($ in millions)		(bcf)	(mmbbl)	(mmbbl)	(bcfe)
10	March 2012	Anadarko Basin Granite Wash	$	744	87	3.0	9.2	160
9	May 2011	Mid-Continent	853		138	1.7	4.8	177
8	September 2010	Barnett Shale	1,150		390	—	—	390
6	February 2010	East Texas and Texas Gulf Coast	180		44	0.3	—	46
5	August 2009	South Texas	370		67	0.2	—	68
4	December 2008	Anadarko and Arkoma Basins	412		95	0.5	—	98
3	August 2008	Anadarko Basin	600		93	—	—	93
2	May 2008	Texas, Oklahoma and Kansas	622		94	—	—	94
1	December 2007	Kentucky and West Virginia	1,100		208	—	—	208
			$	6,031	1,216	5.7	14.0	1,334

VPP Volumes Produced During Period [Table Text Block]

The volumes produced on behalf of our VPP buyers during 2013, 2012 and 2011 were as follows:



	Year Ended December 31, 2013
VPP #	Natural Gas	Oil	NGL	Total
	(bcf)	(mbbl)	(mbbl)	(bcfe)
10	13.5	547.0	1,509.0	25.8
9	17.0	213.2	455.7	21.0
8	68.1	—	—	68.1
6	4.8	24.0	—	4.9
5	7.5	25.4	—	7.7
4	10.2	54.7	—	10.5
3	8.1	—	—	8.1
2	10.3	—	—	10.3
1	14.5	—	—	14.5
	154.0	864.3	1,964.7	170.9



	Year Ended December 31, 2012
VPP #	Natural Gas	Oil	NGL	Total
	(bcf)	(mbbl)	(mbbl)	(bcfe)
10	18.1	727.0	1,729.1	32.8
9	18.4	249.3	643.6	23.7
8	79.7	—	—	79.7
7	0.4	490.3	—	3.4
6	5.3	24.0	—	5.5
5	8.8	27.4	—	9.0
4	11.7	62.8	—	12.2
3	9.3	—	—	9.3
2	11.4	—	—	11.3
1	15.3	—	—	15.3
	178.4	1,580.8	2,372.7	202.2



	Year Ended December 31, 2011
VPP #	Natural Gas	Oil	NGL	Total
	(bcf)	(mbbl)	(mbbl)	(bcfe)
10	—	—	—	—
9	17.3	250.5	615.4	22.5
8	101.2	—	—	101.2
7	0.4	773.0	—	5.0
6	6.0	27.0	—	6.2
5	11.0	35.9	—	11.2
4	13.8	75.1	—	14.3
3	10.7	—	—	10.7
2	12.5	—	—	12.5
1	16.3	—	—	16.3
	189.2	1,161.5	615.4	199.9

VPP Volumes Remaining to be Delivered [Table Text Block]

The volumes remaining to be delivered on behalf of our VPP buyers as of December 31, 2013 were as follows:



		Volume Remaining as of December 31, 2013
VPP #	Term Remaining	Natural Gas	Oil	NGL	Total
	(in months)	(bcf)	(mmbbl)	(mmbbl)	(bcfe)
10	98	48.6	1.7	6.0	94.8
9	86	88.7	1.0	2.3	108.9
8	20	96.5	—	—	96.5
6	73	21.4	0.2	—	22.3
5	37	16.9	0.1	—	17.2
4	36	24.3	0.1	—	25.1
3	67	31.1	—	—	31.1
2	64	20.0	—	—	20.0
1	108	105.4	—	—	105.4
		452.9	3.1	8.3	521.3