v2.4.0.8

Natural Gas and Oil Property Divestitures - VPP Volume Remaining to Be Delivered Table (Details)									6 Months Ended					6 Months Ended								6 Months Ended								6 Months Ended								6 Months Ended								6 Months Ended								6 Months Ended								6 Months Ended								6 Months Ended
	Jun. 30, 2014 Mcfe	Jun. 30, 2014 Reserve Volume Remaining [Member] Mcfe	Jun. 30, 2014 Natural Gas [Member] Mcf	Jun. 30, 2014 Natural Gas [Member] Reserve Volume Remaining [Member] Mcf	Jun. 30, 2014 Oil [Member] MBbls	Jun. 30, 2014 Oil [Member] Reserve Volume Remaining [Member] MBbls	Jun. 30, 2014 NGL Reserves [Member] MBbls	Jun. 30, 2014 NGL Reserves [Member] Reserve Volume Remaining [Member] MBbls	Jun. 30, 2014 VPP 10 Anadarko Basin Granite Wash [Member] Reserve Volume Remaining [Member] Mcfe	Jun. 30, 2014 VPP 10 Anadarko Basin Granite Wash [Member] Natural Gas [Member] Reserve Volume Remaining [Member] Mcf	Jun. 30, 2014 VPP 10 Anadarko Basin Granite Wash [Member] Oil [Member] Reserve Volume Remaining [Member] MBbls	Jun. 30, 2014 VPP 10 Anadarko Basin Granite Wash [Member] NGL Reserves [Member] Reserve Volume Remaining [Member] MBbls	May 31, 2011 VPP 9 Mid-Continent [Member] Mcfe	Jun. 30, 2014 VPP 9 Mid-Continent [Member] Reserve Volume Remaining [Member] Mcfe	May 31, 2011 VPP 9 Mid-Continent [Member] Natural Gas [Member] Mcf	Jun. 30, 2014 VPP 9 Mid-Continent [Member] Natural Gas [Member] Reserve Volume Remaining [Member] Mcf	May 31, 2011 VPP 9 Mid-Continent [Member] Oil [Member] MBbls	Jun. 30, 2014 VPP 9 Mid-Continent [Member] Oil [Member] Reserve Volume Remaining [Member] MBbls	May 31, 2011 VPP 9 Mid-Continent [Member] NGL Reserves [Member] MBbls	Jun. 30, 2014 VPP 9 Mid-Continent [Member] NGL Reserves [Member] Reserve Volume Remaining [Member] MBbls	Sep. 30, 2010 VPP 8 Barnett Shale [Member] Mcfe	Jun. 30, 2014 VPP 8 Barnett Shale [Member] Reserve Volume Remaining [Member] Mcfe	Sep. 30, 2010 VPP 8 Barnett Shale [Member] Natural Gas [Member] Mcf	Jun. 30, 2014 VPP 8 Barnett Shale [Member] Natural Gas [Member] Reserve Volume Remaining [Member] Mcf	Sep. 30, 2010 VPP 8 Barnett Shale [Member] Oil [Member] MBbls	Jun. 30, 2014 VPP 8 Barnett Shale [Member] Oil [Member] Reserve Volume Remaining [Member] MBbls	Sep. 30, 2010 VPP 8 Barnett Shale [Member] NGL Reserves [Member] MBbls	Jun. 30, 2014 VPP 8 Barnett Shale [Member] NGL Reserves [Member] Reserve Volume Remaining [Member] MBbls	Feb. 28, 2010 VPP 6 East Texas and Texas Gulf Coast [Member] Mcfe	Jun. 30, 2014 VPP 6 East Texas and Texas Gulf Coast [Member] Reserve Volume Remaining [Member] Mcfe	Feb. 28, 2010 VPP 6 East Texas and Texas Gulf Coast [Member] Natural Gas [Member] Mcf	Jun. 30, 2014 VPP 6 East Texas and Texas Gulf Coast [Member] Natural Gas [Member] Reserve Volume Remaining [Member] Mcf	Feb. 28, 2010 VPP 6 East Texas and Texas Gulf Coast [Member] Oil [Member] MBbls	Jun. 30, 2014 VPP 6 East Texas and Texas Gulf Coast [Member] Oil [Member] Reserve Volume Remaining [Member] MBbls	Feb. 28, 2010 VPP 6 East Texas and Texas Gulf Coast [Member] NGL Reserves [Member] MBbls	Jun. 30, 2014 VPP 6 East Texas and Texas Gulf Coast [Member] NGL Reserves [Member] Reserve Volume Remaining [Member] MBbls	Aug. 31, 2009 VPP 5 South Texas [Member] Mcfe	Jun. 30, 2014 VPP 5 South Texas [Member] Reserve Volume Remaining [Member] Mcfe	Aug. 31, 2009 VPP 5 South Texas [Member] Natural Gas [Member] Mcf	Jun. 30, 2014 VPP 5 South Texas [Member] Natural Gas [Member] Reserve Volume Remaining [Member] Mcf	Aug. 31, 2009 VPP 5 South Texas [Member] Oil [Member] MBbls	Jun. 30, 2014 VPP 5 South Texas [Member] Oil [Member] Reserve Volume Remaining [Member] MBbls	Aug. 31, 2009 VPP 5 South Texas [Member] NGL Reserves [Member] MBbls	Jun. 30, 2014 VPP 5 South Texas [Member] NGL Reserves [Member] Reserve Volume Remaining [Member] MBbls	Dec. 31, 2008 VPP 4 Anadarko and Arkoma Basins [Member] Mcfe	Jun. 30, 2014 VPP 4 Anadarko and Arkoma Basins [Member] Reserve Volume Remaining [Member] Mcfe	Dec. 31, 2008 VPP 4 Anadarko and Arkoma Basins [Member] Natural Gas [Member] Mcf	Jun. 30, 2014 VPP 4 Anadarko and Arkoma Basins [Member] Natural Gas [Member] Reserve Volume Remaining [Member] Mcf	Dec. 31, 2008 VPP 4 Anadarko and Arkoma Basins [Member] Oil [Member] MBbls	Jun. 30, 2014 VPP 4 Anadarko and Arkoma Basins [Member] Oil [Member] Reserve Volume Remaining [Member] MBbls	Dec. 31, 2008 VPP 4 Anadarko and Arkoma Basins [Member] NGL Reserves [Member] MBbls	Jun. 30, 2014 VPP 4 Anadarko and Arkoma Basins [Member] NGL Reserves [Member] Reserve Volume Remaining [Member] MBbls	Aug. 31, 2008 VPP 3 Anadarko Basin [Member] Mcfe	Jun. 30, 2014 VPP 3 Anadarko Basin [Member] Reserve Volume Remaining [Member] Mcfe	Aug. 31, 2008 VPP 3 Anadarko Basin [Member] Natural Gas [Member] Mcf	Jun. 30, 2014 VPP 3 Anadarko Basin [Member] Natural Gas [Member] Reserve Volume Remaining [Member] Mcf	Aug. 31, 2008 VPP 3 Anadarko Basin [Member] Oil [Member] MBbls	Jun. 30, 2014 VPP 3 Anadarko Basin [Member] Oil [Member] Reserve Volume Remaining [Member] MBbls	Aug. 31, 2008 VPP 3 Anadarko Basin [Member] NGL Reserves [Member] MBbls	Jun. 30, 2014 VPP 3 Anadarko Basin [Member] NGL Reserves [Member] Reserve Volume Remaining [Member] MBbls	May 31, 2008 VPP 2 Texas, Oklahoma and Kansas [Member] Mcfe	Jun. 30, 2014 VPP 2 Texas, Oklahoma and Kansas [Member] Reserve Volume Remaining [Member] Mcfe	May 31, 2008 VPP 2 Texas, Oklahoma and Kansas [Member] Natural Gas [Member] Mcf	Jun. 30, 2014 VPP 2 Texas, Oklahoma and Kansas [Member] Natural Gas [Member] Reserve Volume Remaining [Member] Mcf	May 31, 2008 VPP 2 Texas, Oklahoma and Kansas [Member] Oil [Member] MBbls	Jun. 30, 2014 VPP 2 Texas, Oklahoma and Kansas [Member] Oil [Member] Reserve Volume Remaining [Member] MBbls	May 31, 2008 VPP 2 Texas, Oklahoma and Kansas [Member] NGL Reserves [Member] MBbls	Jun. 30, 2014 VPP 2 Texas, Oklahoma and Kansas [Member] NGL Reserves [Member] Reserve Volume Remaining [Member] MBbls	Dec. 31, 2007 VPP 1 Kentucky and West Virginia [Member] Mcfe	Jun. 30, 2014 VPP 1 Kentucky and West Virginia [Member] Reserve Volume Remaining [Member] Mcfe	Dec. 31, 2007 VPP 1 Kentucky and West Virginia [Member] Natural Gas [Member] Mcf	Jun. 30, 2014 VPP 1 Kentucky and West Virginia [Member] Natural Gas [Member] Reserve Volume Remaining [Member] Mcf	Dec. 31, 2007 VPP 1 Kentucky and West Virginia [Member] Oil [Member] MBbls	Jun. 30, 2014 VPP 1 Kentucky and West Virginia [Member] Oil [Member] Reserve Volume Remaining [Member] MBbls	Dec. 31, 2007 VPP 1 Kentucky and West Virginia [Member] NGL Reserves [Member] MBbls	Jun. 30, 2014 VPP 1 Kentucky and West Virginia [Member] NGL Reserves [Member] Reserve Volume Remaining [Member] MBbls
Acquisitions, Divestitures, Joint Ventures, VPP's [Line Items]
Term remaining (in months)									92 months					80 months								14 months								67 months								31 months								30 months								61 months								58 months								102 months
Proved Developed Reserves (Volume)			1,216,000,000,000	383,800,000,000	5,700,000	2,600,000	14,000,000	7,400,000		43,100,000,000	1,500,000	5,300,000			138,000,000,000	80,800,000,000	1,700,000	900,000	4,800,000	2,100,000			390,000,000,000	65,700,000,000	0	0	0	0			44,000,000,000	19,200,000,000	300,000	100,000	0	0			67,000,000,000	13,500,000,000	200,000	0	0	0			95,000,000,000	19,700,000,000	500,000	100,000	0	0			93,000,000,000	27,400,000,000	0	0	0	0			94,000,000,000	16,000,000,000	0	0	0	0			208,000,000,000	98,400,000,000	0	0	0	0
Proved Developed Reserves (Energy)	1,334,000,000,000	444,700,000,000							83,900,000,000				177,000,000,000	99,200,000,000							390,000,000,000	65,700,000,000							46,000,000,000	20,000,000,000							68,000,000,000	13,800,000,000							98,000,000,000	20,300,000,000							93,000,000,000	27,400,000,000							94,000,000,000	16,000,000,000							208,000,000,000	98,400,000,000

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- Definition

Term Remaining (in months)

+ References

No definition available.

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- Definition

Energy measure of interests in proved developed reserves of crude oil, including condensate and natural gas liquids, natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas.

+ References

No definition available.

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- Definition

Net quantities of an enterprise's interests in proved developed reserves of either crude oil (including condensate and natural gas liquids), natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas as of the beginning and the end of the year. "Net" quantities of reserves include those relating to the enterprise's operating and nonoperating interests in properties. Quantities of reserves relating to royalty interests owned are included in "net" quantities if the necessary information is available to the enterprise. "Net" quantities does not include reserves relating to interests of others in properties owned by the enterprise. The unit of measure for reserve quantities is defined as "barrels" for oil and synthetic oil reserves or "cubic feet" or "cubic meters" for natural gas and synthetic gas reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e61797-109447



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 9

-URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e61884-109447

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