Oil and Natural Gas Properties (Details) (Linn Energy, LLC [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Linn Energy, LLC [Member]
Proved properties:
Leasehold acquisition	$ 8,466,258	$ 8,464,014	$ 8,603,888
Development	3,015,279	2,707,884	2,553,127
Unproved properties	384,552	374,202	454,315
Oil and natural gas properties (successful efforts method)	11,866,089	11,546,100	11,611,330	7,835,650
Less accumulated depletion and amortization	(2,358,158)	(2,174,273)	(2,025,656)	(1,033,617)
Oil and natural gas properties, successful efforts method, net	$ 9,507,931	$ 9,371,827	$ 9,585,674	$ 6,802,033

Oil and Gas properties with unproved reserves under the successful effort method.

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

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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