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Derivatives (Commodity Derivatives) (Details) (Linn Energy, LLC [Member], USD $)
In Millions, unless otherwise specified
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Sep. 30, 2010
Jun. 30, 2013
MMMBTU
MBbls
Mar. 31, 2013
MBbls
MMMBTU
Jun. 30, 2012
MBbls
MMMBTU
Mar. 31, 2012
MBbls
MMMBTU
Jun. 30, 2013
MMMBTU
MBbls
Jun. 30, 2012
MBbls
MMMBTU
Dec. 31, 2012
MMMBTU
MBbls
Dec. 31, 2011
MMMBTU
MBbls
Derivative [Line Items]                  
Premiums paid for put options on oil and natural gas commodity derivative contracts               $ 583  
Volumes of natural gas production on settled derivatives (in MMMbtu)   43,253 42,778 34,438 23,642 86,031 58,080 140,884 64,457
Average contract price per MMBtu on settled derivatives   5.29 5.29 5.45 5.84 5.29 5.61 5.41 8.24
Volumes of oil production on settled derivatives (in MBbls)   3,734 3,693 2,731 2,578 7,426 5,308 11,289 7,917
Average contract price per barrel on settled derivatives   95.57 95.57 98.08 97.93 95.57 98.01 97.61 85.70
Realized Gain (Loss) on Interest Rate Derivatives Not Designated as Hedging Instruments Canceled Before Settlement Date $ 124                
2013 | Natural Gas Derivative Instruments
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   87,457 130,710     87,457   173,488  
Weighted Average Fixed Price (in usd per energy unit)   5.29 5.29     5.29   5.29  
2013 | Natural Gas Derivative Instruments | Fixed price swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   44,004 65,766     44,004   87,290  
Weighted Average Fixed Price (in usd per energy unit)   5.22 5.22     5.22   5.22  
2013 | Natural Gas Derivative Instruments | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   43,453 [1] 64,944 [2]     43,453 [1]   86,198 [3]  
Weighted Average Short Put Price (in usd per energy unit)   5.37 [1] 5.37 [2]     5.37 [1]   5.37 [3]  
2013 | Oil Derivative Instruments
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   7,550 11,283     7,550   14,976  
Weighted Average Fixed Price (in usd per energy unit)   95.57 95.57     95.57   95.57  
2013 | Oil Derivative Instruments | Fixed price swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   5,985 [4] 8,944 [4]     5,985 [4]   11,871 [4]  
Weighted Average Fixed Price (in usd per energy unit)   94.97 [4] 94.97 [4]     94.97 [4]   94.97 [4]  
2013 | Oil Derivative Instruments | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   1,565 2,339     1,565   3,105  
Weighted Average Short Put Price (in usd per energy unit)   97.86 97.86     97.86   97.86  
2013 | Natural Gas Basis Differential Positions | Panhandle Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   39,089 [5] 58,508 [5]     39,089 [5]   77,800 [6]  
Hedged Differential (in usd per energy unit)   (0.56) [5] (0.56) [5]     (0.56) [5]   (0.56) [6]  
2013 | Natural Gas Basis Differential Positions | NWPL - Rockies basis swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   17,778 [5] 26,208 [5]     17,778 [5]   34,785 [6]  
Hedged Differential (in usd per energy unit)   (0.20) [5] (0.20) [5]     (0.20) [5]   (0.20) [6]  
2013 | Natural Gas Basis Differential Positions | MichCon Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   4,839 [5] 7,233 [5]     4,839 [5]   9,600 [6]  
Hedged Differential (in usd per energy unit)   0.10 [5] 0.10 [5]     0.10 [5]   0.10 [6]  
2013 | Natural Gas Basis Differential Positions | Houston Ship Channel Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   2,889 [5] 4,318 [5]     2,889 [5]   5,731 [6]  
Hedged Differential (in usd per energy unit)   (0.10) [5] (0.10) [5]     (0.10) [5]   (0.10) [6]  
2013 | Natural Gas Basis Differential Positions | Permian Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   2,337 [5] 3,493 [5]     2,337 [5]   4,636 [6]  
Hedged Differential (in usd per energy unit)   (0.20) [5] (0.20) [5]     (0.20) [5]   (0.20) [6]  
2013 | Oil Basis Differential Commodity Contract [Member] | Midland-Cushing Basis Swaps [Member]
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   1,012 [5] 1,513 [5]     1,012 [5]      
Hedged Differential (in usd per energy unit)   (0.95) [5] (0.95) [5]     (0.95) [5]      
2013 | Oil Timing Differential Positions | Trade month roll swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   3,501 [7] 5,232 [7]     3,501 [7]   6,944 [7]  
Hedged Differential (in usd per energy unit)   0.22 [7] 0.22 [7]     0.22 [7]   0.22 [7]  
2013 | Natural Gas Liquid Commodity Contract | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   5,329 7,964     5,329   10,570  
2014 | Natural Gas Derivative Instruments
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   177,029 177,029     177,029   177,029  
Weighted Average Fixed Price (in usd per energy unit)   5.14 5.14     5.14   5.14  
2014 | Natural Gas Derivative Instruments | Fixed price swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   97,401 97,401     97,401   97,401  
Weighted Average Fixed Price (in usd per energy unit)   5.25 5.25     5.25   5.25  
2014 | Natural Gas Derivative Instruments | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   79,628 [1] 79,628 [2]     79,628 [1]   79,628 [3]  
Weighted Average Short Put Price (in usd per energy unit)   5.00 [1] 5.00 [2]     5.00 [1]   5.00 [3]  
2014 | Oil Derivative Instruments
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   15,863 15,863     15,863   15,863  
Weighted Average Fixed Price (in usd per energy unit)   92.52 92.52     92.52   92.52  
2014 | Oil Derivative Instruments | Fixed price swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   11,903 [4] 11,903 [4]     11,903 [4]   11,903 [4]  
Weighted Average Fixed Price (in usd per energy unit)   92.92 [4] 92.92 [4]     92.92 [4]   92.92 [4]  
2014 | Oil Derivative Instruments | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   3,960 3,960     3,960   3,960  
Weighted Average Short Put Price (in usd per energy unit)   91.30 91.30     91.30   91.30  
2014 | Natural Gas Basis Differential Positions | Panhandle Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   79,388 [5] 79,388 [5]     79,388 [5]   79,388 [6]  
Hedged Differential (in usd per energy unit)   (0.33) [5] (0.33) [5]     (0.33) [5]   (0.33) [6]  
2014 | Natural Gas Basis Differential Positions | NWPL - Rockies basis swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   39,718 [5] 36,026 [5]     39,718 [5]   36,026 [6]  
Hedged Differential (in usd per energy unit)   (0.20) [5] (0.20) [5]     (0.20) [5]   (0.20) [6]  
2014 | Natural Gas Basis Differential Positions | MichCon Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   9,490 [5] 9,490 [5]     9,490 [5]   9,490 [6]  
Hedged Differential (in usd per energy unit)   0.08 [5] 0.08 [5]     0.08 [5]   0.08 [6]  
2014 | Natural Gas Basis Differential Positions | Houston Ship Channel Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   5,256 [5] 5,256 [5]     5,256 [5]   5,256 [6]  
Hedged Differential (in usd per energy unit)   (0.10) [5] (0.10) [5]     (0.10) [5]   (0.10) [6]  
2014 | Natural Gas Basis Differential Positions | Permian Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   4,891 [5] 4,891 [5]     4,891 [5]   4,891 [6]  
Hedged Differential (in usd per energy unit)   (0.21) [5] (0.21) [5]     (0.21) [5]   (0.21) [6]  
2014 | Oil Basis Differential Commodity Contract [Member] | Midland-Cushing Basis Swaps [Member]
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   0 [5] 0 [5]     0 [5]      
Hedged Differential (in usd per energy unit)   0 [5] 0.00 [5]     0 [5]      
2014 | Oil Timing Differential Positions | Trade month roll swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   7,254 [7] 7,254 [7]     7,254 [7]   7,254 [7]  
Hedged Differential (in usd per energy unit)   0.22 [7] 0.22 [7]     0.22 [7]   0.22 [7]  
2014 | Natural Gas Liquid Commodity Contract | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   10,570 10,570     10,570   10,570  
2015 | Natural Gas Derivative Instruments
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   189,895 189,895     189,895   189,895  
Weighted Average Fixed Price (in usd per energy unit)   5.12 5.12     5.12   5.12  
2015 | Natural Gas Derivative Instruments | Fixed price swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   118,041 118,041     118,041   118,041  
Weighted Average Fixed Price (in usd per energy unit)   5.19 5.19     5.19   5.19  
2015 | Natural Gas Derivative Instruments | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   71,854 [1] 71,854 [2]     71,854 [1]   71,854 [3]  
Weighted Average Short Put Price (in usd per energy unit)   5.00 [1] 5.00 [2]     5.00 [1]   5.00 [3]  
2015 | Oil Derivative Instruments
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   15,025 15,025     15,025   15,025  
Weighted Average Fixed Price (in usd per energy unit)   94.81 94.81     94.81   94.81  
2015 | Oil Derivative Instruments | Fixed price swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   11,599 [4] 11,599 [4]     11,599 [4]   11,599 [4]  
Weighted Average Fixed Price (in usd per energy unit)   96.23 [4] 96.23 [4]     96.23 [4]   96.23 [4]  
2015 | Oil Derivative Instruments | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   3,426 3,426     3,426   3,426  
Weighted Average Short Put Price (in usd per energy unit)   90.00 90.00     90.00   90.00  
2015 | Natural Gas Basis Differential Positions | Panhandle Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   87,162 [5] 87,162 [5]     87,162 [5]   87,162 [6]  
Hedged Differential (in usd per energy unit)   (0.33) [5] (0.33) [5]     (0.33) [5]   (0.33) [6]  
2015 | Natural Gas Basis Differential Positions | NWPL - Rockies basis swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   43,292 [5] 38,362 [5]     43,292 [5]   38,362 [6]  
Hedged Differential (in usd per energy unit)   (0.20) [5] (0.20) [5]     (0.20) [5]   (0.20) [6]  
2015 | Natural Gas Basis Differential Positions | MichCon Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   9,344 [5] 9,344 [5]     9,344 [5]   9,344 [6]  
Hedged Differential (in usd per energy unit)   0.06 [5] 0.06 [5]     0.06 [5]   0.06 [6]  
2015 | Natural Gas Basis Differential Positions | Houston Ship Channel Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   4,891 [5] 4,891 [5]     4,891 [5]   4,891 [6]  
Hedged Differential (in usd per energy unit)   (0.10) [5] (0.10) [5]     (0.10) [5]   (0.10) [6]  
2015 | Natural Gas Basis Differential Positions | Permian Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   5,074 [5] 5,074 [5]     5,074 [5]   5,074 [6]  
Hedged Differential (in usd per energy unit)   (0.21) [5] (0.21) [5]     (0.21) [5]   (0.21) [6]  
2015 | Oil Basis Differential Commodity Contract [Member] | Midland-Cushing Basis Swaps [Member]
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   0 [5] 0 [5]     0 [5]      
Hedged Differential (in usd per energy unit)   0 [5] 0.00 [5]     0 [5]      
2015 | Oil Timing Differential Positions | Trade month roll swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   7,251 [7] 7,251 [7]     7,251 [7]   7,251 [7]  
Hedged Differential (in usd per energy unit)   0.24 [7] 0.24 [7]     0.24 [7]   0.24 [7]  
2015 | Natural Gas Liquid Commodity Contract | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   10,570 10,570     10,570   10,570  
2016 | Natural Gas Derivative Instruments
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   198,110 198,110     198,110   198,110  
Weighted Average Fixed Price (in usd per energy unit)   4.51 4.51     4.51   4.51  
2016 | Natural Gas Derivative Instruments | Fixed price swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   121,841 121,841     121,841   121,841  
Weighted Average Fixed Price (in usd per energy unit)   4.20 4.20     4.20   4.20  
2016 | Natural Gas Derivative Instruments | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   76,269 [1] 76,269 [2]     76,269 [1]   76,269 [3]  
Weighted Average Short Put Price (in usd per energy unit)   5.00 [1] 5.00 [2]     5.00 [1]   5.00 [3]  
2016 | Oil Derivative Instruments
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   14,735 14,735     14,735   14,735  
Weighted Average Fixed Price (in usd per energy unit)   90.44 90.44     90.44   90.44  
2016 | Oil Derivative Instruments | Fixed price swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   11,464 [4] 11,464 [4]     11,464 [4]   11,464 [4]  
Weighted Average Fixed Price (in usd per energy unit)   90.56 [4] 90.56 [4]     90.56 [4]   90.56 [4]  
2016 | Oil Derivative Instruments | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   3,271 3,271     3,271   3,271  
Weighted Average Short Put Price (in usd per energy unit)   90.00 90.00     90.00   90.00  
2016 | Natural Gas Basis Differential Positions | Panhandle Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   59,954 [5] 19,764 [5]     59,954 [5]   19,764 [6]  
Hedged Differential (in usd per energy unit)   (0.32) [5] (0.31) [5]     (0.32) [5]   (0.31) [6]  
2016 | Natural Gas Basis Differential Positions | NWPL - Rockies basis swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   46,294 [5] 39,199 [5]     46,294 [5]   39,199 [6]  
Hedged Differential (in usd per energy unit)   (0.20) [5] (0.20) [5]     (0.20) [5]   (0.20) [6]  
2016 | Natural Gas Basis Differential Positions | MichCon Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   7,768 [5] 0 [5]     7,768 [5]   0 [6]  
Hedged Differential (in usd per energy unit)   0.05 [5] 0.00 [5]     0.05 [5]   0.00 [6]  
2016 | Natural Gas Basis Differential Positions | Houston Ship Channel Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   4,575 [5] 4,575 [5]     4,575 [5]   4,575 [6]  
Hedged Differential (in usd per energy unit)   (0.10) [5] (0.10) [5]     (0.10) [5]   (0.10) [6]  
2016 | Natural Gas Basis Differential Positions | Permian Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   4,219 [5] 0 [5]     4,219 [5]   0 [6]  
Hedged Differential (in usd per energy unit)   (0.20) [5] 0.00 [5]     (0.20) [5]   0.00 [6]  
2016 | Oil Basis Differential Commodity Contract [Member] | Midland-Cushing Basis Swaps [Member]
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   0 [5] 0 [5]     0 [5]      
Hedged Differential (in usd per energy unit)   0 [5] 0.00 [5]     0 [5]      
2016 | Oil Timing Differential Positions | Trade month roll swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   7,446 [7] 7,446 [7]     7,446 [7]   7,446 [7]  
Hedged Differential (in usd per energy unit)   0.25 [7] 0.25 [7]     0.25 [7]   0.25 [7]  
2016 | Natural Gas Liquid Commodity Contract | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   10,599 10,599     10,599   10,599  
2017 | Natural Gas Derivative Instruments
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   187,008 187,008     187,008   187,008  
Weighted Average Fixed Price (in usd per energy unit)   4.48 4.48     4.48   4.48  
2017 | Natural Gas Derivative Instruments | Fixed price swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   120,122 120,122     120,122   120,122  
Weighted Average Fixed Price (in usd per energy unit)   4.26 4.26     4.26   4.26  
2017 | Natural Gas Derivative Instruments | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   66,886 [1] 66,886 [2]     66,886 [1]   66,886 [3]  
Weighted Average Short Put Price (in usd per energy unit)   4.88 [1] 4.88 [2]     4.88 [1]   4.88 [3]  
2017 | Oil Derivative Instruments
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   5,139 5,139     5,139   5,139  
Weighted Average Fixed Price (in usd per energy unit)   89.10 89.10     89.10   89.10  
2017 | Oil Derivative Instruments | Fixed price swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   4,755 [4] 4,755 [4]     4,755 [4]   4,755 [4]  
Weighted Average Fixed Price (in usd per energy unit)   89.02 [4] 89.02 [4]     89.02 [4]   89.02 [4]  
2017 | Oil Derivative Instruments | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   384 384     384   384  
Weighted Average Short Put Price (in usd per energy unit)   90.00 90.00     90.00   90.00  
2017 | Oil Derivative Instruments | Extendible Fixed Price Swaps
                  
Derivative [Line Items]                  
Weighted Average Fixed Price (in usd per energy unit)   100.00 100.00     100.00   100.00  
Amount of outstanding extendible fixed price oil swaps of daily production (in MBbls)   5,384 5,384     5,384   5,384  
2017 | Natural Gas Basis Differential Positions | Panhandle Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   59,138 [5] 0 [5]     59,138 [5]   0 [6]  
Hedged Differential (in usd per energy unit)   (0.33) [5] 0.00 [5]     (0.33) [5]   0.00 [6]  
2017 | Natural Gas Basis Differential Positions | NWPL - Rockies basis swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   38,880 [5] 0 [5]     38,880 [5]   0 [6]  
Hedged Differential (in usd per energy unit)   (0.19) [5] 0.00 [5]     (0.19) [5]   0.00 [6]  
2017 | Natural Gas Basis Differential Positions | MichCon Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   7,437 [5] 0 [5]     7,437 [5]   0 [6]  
Hedged Differential (in usd per energy unit)   0.05 [5] 0.00 [5]     0.05 [5]   0.00 [6]  
2017 | Natural Gas Basis Differential Positions | Houston Ship Channel Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   3,604 [5] 0 [5]     3,604 [5]   0 [6]  
Hedged Differential (in usd per energy unit)   (0.08) [5] 0.00 [5]     (0.08) [5]   0.00 [6]  
2017 | Natural Gas Basis Differential Positions | Permian Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   4,819 [5] 0 [5]     4,819 [5]   0 [6]  
Hedged Differential (in usd per energy unit)   (0.20) [5] 0.00 [5]     (0.20) [5]   0.00 [6]  
2017 | Oil Basis Differential Commodity Contract [Member] | Midland-Cushing Basis Swaps [Member]
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   0 [5] 0 [5]     0 [5]      
Hedged Differential (in usd per energy unit)   0 [5] 0.00 [5]     0 [5]      
2017 | Oil Timing Differential Positions | Trade month roll swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   6,486 [7] 6,486 [7]     6,486 [7]   6,486 [7]  
Hedged Differential (in usd per energy unit)   0.25 [7] 0.25 [7]     0.25 [7]   0.25 [7]  
2018 | Natural Gas Derivative Instruments
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   36,500 36,500     36,500   36,500  
Weighted Average Fixed Price (in usd per energy unit)   5.00 5.00     5.00   5.00  
2018 | Natural Gas Derivative Instruments | Fixed price swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   36,500 36,500     36,500   36,500  
Weighted Average Fixed Price (in usd per energy unit)   5.00 5.00     5.00   5.00  
2018 | Natural Gas Derivative Instruments | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   0 [1] 0 [2]     0 [1]   0 [3]  
Weighted Average Short Put Price (in usd per energy unit)   0.00 [1] 0.00 [2]     0.00 [1]   0.00 [3]  
2018 | Oil Derivative Instruments
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   0 0     0   0  
Weighted Average Fixed Price (in usd per energy unit)   0.00 0.00     0.00   0.00  
2018 | Oil Derivative Instruments | Fixed price swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   0 [4] 0 [4]     0 [4]   0 [4]  
Weighted Average Fixed Price (in usd per energy unit)   0.00 [4] 0.00 [4]     0.00 [4]   0.00 [4]  
2018 | Oil Derivative Instruments | Puts
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   0 0     0   0  
Weighted Average Short Put Price (in usd per energy unit)   0.00 0.00     0.00   0.00  
2018 | Oil Derivative Instruments | Extendible Fixed Price Swaps
                  
Derivative [Line Items]                  
Weighted Average Fixed Price (in usd per energy unit)   100.00 100.00     100.00   100.00  
Amount of outstanding extendible fixed price oil swaps of daily production (in MBbls)   5,384 5,384     5,384   5,384  
2018 | Natural Gas Basis Differential Positions | Panhandle Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   16,425 [5] 0 [5]     16,425 [5]   0 [6]  
Hedged Differential (in usd per energy unit)   (0.33) [5] 0.00 [5]     (0.33) [5]   0.00 [6]  
2018 | Natural Gas Basis Differential Positions | NWPL - Rockies basis swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   10,804 [5] 0 [5]     10,804 [5]   0 [6]  
Hedged Differential (in usd per energy unit)   (0.19) [5] 0.00 [5]     (0.19) [5]   0.00 [6]  
2018 | Natural Gas Basis Differential Positions | MichCon Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   2,044 [5] 0 [5]     2,044 [5]   0 [6]  
Hedged Differential (in usd per energy unit)   0.05 [5] 0.00 [5]     0.05 [5]   0.00 [6]  
2018 | Natural Gas Basis Differential Positions | Houston Ship Channel Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   986 [5] 0 [5]     986 [5]   0 [6]  
Hedged Differential (in usd per energy unit)   (0.08) [5] 0.00 [5]     (0.08) [5]   0.00 [6]  
2018 | Natural Gas Basis Differential Positions | Permian Basis Swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   1,314 [5] 0 [5]     1,314 [5]   0 [6]  
Hedged Differential (in usd per energy unit)   (0.20) [5] 0.00 [5]     (0.20) [5]   0.00 [6]  
2018 | Oil Basis Differential Commodity Contract [Member] | Midland-Cushing Basis Swaps [Member]
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   0 [5] 0 [5]     0 [5]      
Hedged Differential (in usd per energy unit)   0 [5] 0.00 [5]     0 [5]      
2018 | Oil Timing Differential Positions | Trade month roll swaps
                  
Derivative [Line Items]                  
Annual Hedged Volume (in energy unit)   0 [7] 0 [7]     0 [7]   0 [7]  
Hedged Differential (in usd per energy unit)   0.00 [7] 0.00 [7]     0.00 [7]   0.00 [7]  
2019 | Oil Derivative Instruments | Extendible Fixed Price Swaps
                  
Derivative [Line Items]                  
Weighted Average Fixed Price (in usd per energy unit)   90.00 90.00     90.00   90.00  
Amount of outstanding extendible fixed price oil swaps of daily production (in MBbls)   5,384 5,384     5,384   5,384  
[1] Includes certain outstanding natural gas put options of approximately 5,329 MMMBtu for the period July 1, 2013, through December 31, 2013, 10,570 MMMBtu for each of the years ending December 31, 2014, and December 31, 2015, and 10,599 MMMBtu for the year ending December 31, 2016, used to indirectly hedge revenues associated with NGL production.
[2] Includes certain outstanding natural gas puts of approximately 7,964 MMMBtu for the period April 1, 2013, through December 31, 2013, 10,570 MMMBtu for each of the years ending December 31, 2014, and December 31, 2015, and 10,599 MMMBtu for the year ending December 31, 2016, used to hedge revenues associated with NGL production.
[3] Includes certain outstanding natural gas puts of approximately 10,570 MMMBtu for each of the years ending December 31, 2013, December 31, 2014, and December 31, 2015, and 10,599 MMMBtu for the year ending December 31, 2016, used to hedge revenues associated with NGL production.
[4] Includes certain outstanding fixed price oil swaps of approximately 5,384 MBbls which may be extended annually at a price of $100.00 per Bbl for each of the years ending December 31, 2017, and December 31, 2018, and $90.00 per Bbl for the year ending December 31, 2019, if the counterparties determine that the strike prices are in-the-money on a designated date in each respective preceding year. The extension for each year is exercisable without respect to the other years.
[5] Settle on the respective pricing index to hedge basis differential associated with natural gas and oil production.
[6] Settle on the respective pricing index to hedge basis differential associated with natural gas production.
[7] The Company hedges the timing risk associated with the sales price of oil in the Mid-Continent, Hugoton Basin and Permian Basin regions. In these regions, the Company generally sells oil for the delivery month at a sales price based on the average NYMEX price of light crude oil during that month, plus an adjustment calculated as a spread between the weighted average prices of the delivery month, the next month and the following month during the period when the delivery month is prompt (the “trade month roll”).