XML 53 R42.htm IDEA: XBRL DOCUMENT v3.7.0.1
Price-Risk Management Price-Risk Management (Details)
$ in Thousands
2 Months Ended 3 Months Ended 4 Months Ended 6 Months Ended
Jun. 30, 2016
USD ($)
Jun. 30, 2017
USD ($)
MMBTU
$ / MMBTU
$ / Boe
bbl
Apr. 22, 2016
USD ($)
Jun. 30, 2017
USD ($)
MMBTU
$ / MMBTU
$ / Boe
bbl
Dec. 31, 2016
USD ($)
MMBTU
$ / MMBTU
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Document Period End Date       Jun. 30, 2017  
Receivables for Settled Derivatives | $   $ 300   $ 300 $ 400
Payables for Settled Derivatives | $   700   700 1,800
Derivative, Fair Value, Net | $   1,300   1,300 16,400
Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Gain (Loss) on Price Risk Derivatives, Net | $ $ (9,900) 5,100   16,100  
Derivative, Cash Received on Hedge | $   1,800   2,600  
Predecessor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Gain (Loss) on Price Risk Derivatives, Net | $     $ 0    
Other Current Assets [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative Asset, Fair Value, Gross Asset | $   3,600   3,600 500
Other Noncurrent Assets [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative Asset, Fair Value, Gross Asset | $   800   800 0
Other Current Liabilities [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative Liability, Fair Value, Gross Liability | $   2,500   2,500 15,800
Other Noncurrent Liabilities [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative Liability, Fair Value, Gross Liability | $   $ 600   $ 600 $ 1,000
Swap [Member] | Oil Derivative Swaps [Member] | Third Quarter 2017 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Portion of Future Oil and Gas Production Being Hedged | bbl   90,000   90,000  
Derivative, Swap Type, Fixed Price | $ / Boe   48.16   48.16  
Swap [Member] | Oil Derivative Swaps [Member] | Fourth Quarter 2017 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Portion of Future Oil and Gas Production Being Hedged | bbl   84,798   84,798  
Derivative, Swap Type, Fixed Price | $ / Boe   48.18   48.18  
Swap [Member] | Oil Derivative Swaps [Member] | First Quarter 2018 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Portion of Future Oil and Gas Production Being Hedged | bbl   68,000   68,000  
Derivative, Swap Type, Fixed Price | $ / Boe   51.10   51.10  
Swap [Member] | Oil Derivative Swaps [Member] | Second Quarter 2018 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Portion of Future Oil and Gas Production Being Hedged | bbl   64,400   64,400  
Derivative, Swap Type, Fixed Price | $ / Boe   50.98   50.98  
Swap [Member] | Oil Derivative Swaps [Member] | Third Quarter 2018 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Portion of Future Oil and Gas Production Being Hedged | bbl   60,400   60,400  
Derivative, Swap Type, Fixed Price | $ / Boe   50.96   50.96  
Swap [Member] | Oil Derivative Swaps [Member] | Fourth Quarter 2018 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Portion of Future Oil and Gas Production Being Hedged | bbl   56,800   56,800  
Derivative, Swap Type, Fixed Price | $ / Boe   50.84   50.84  
Swap [Member] | Natural Gas Derivative Swaps [Member] | Third Quarter 2017 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative, Swap Type, Fixed Price   3.00   3.00  
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU   3,882,666   3,882,666  
Swap [Member] | Natural Gas Derivative Swaps [Member] | Fourth Quarter 2017 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative, Swap Type, Fixed Price   3.09   3.09  
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU   5,941,001   5,941,001  
Swap [Member] | Natural Gas Derivative Swaps [Member] | First Quarter 2018 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative, Swap Type, Fixed Price   3.46   3.46  
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU   7,445,000   7,445,000  
Swap [Member] | Natural Gas Derivative Swaps [Member] | Second Quarter 2018 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative, Swap Type, Fixed Price   2.86   2.86  
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU   6,655,000   6,655,000  
Swap [Member] | Natural Gas Derivative Swaps [Member] | Third Quarter 2018 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative, Swap Type, Fixed Price   2.88   2.88  
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU   6,074,000   6,074,000  
Swap [Member] | Natural Gas Derivative Swaps [Member] | Fourth Quarter 2018 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative, Swap Type, Fixed Price   2.96   2.96  
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU   5,576,000   5,576,000  
Swap [Member] | Natural Gas Derivative Swaps [Member] | First Quarter 2019 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative, Swap Type, Fixed Price   3.12   3.12  
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU   4,181,000   4,181,000  
Forward Contracts [Member] | Natural Gas Derivative Swaps [Member] | Third Quarter 2017 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU         1,910,000
Derivative, Average Floor Price         3.050
Derivative, Average Cap Price         3.590
Forward Contracts [Member] | Natural Gas Derivative Swaps [Member] | Fourth Quarter 2017 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU         3,102,000
Derivative, Average Floor Price         3.100
Derivative, Average Cap Price         3.720
Basis Swap [Member] | Natural Gas Basis Derivative Swaps [Member] | Third Quarter 2017 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU   5,792,666   5,792,666  
Derivative, Basis Swap Type, Fixed Price   (0.02)   (0.02)  
Basis Swap [Member] | Natural Gas Basis Derivative Swaps [Member] | Fourth Quarter 2017 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU   7,562,001   7,562,001  
Derivative, Basis Swap Type, Fixed Price   (0.04)   (0.04)  
Basis Swap [Member] | Natural Gas Basis Derivative Swaps [Member] | First Quarter 2018 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU   5,400,000   5,400,000  
Derivative, Basis Swap Type, Fixed Price   (0.12)   (0.12)  
Basis Swap [Member] | Natural Gas Basis Derivative Swaps [Member] | Second Quarter 2018 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU   3,610,000   3,610,000  
Derivative, Basis Swap Type, Fixed Price   (0.04)   (0.04)  
Basis Swap [Member] | Natural Gas Basis Derivative Swaps [Member] | Third Quarter 2018 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU   3,020,000   3,020,000  
Derivative, Basis Swap Type, Fixed Price   (0.03)   (0.03)  
Basis Swap [Member] | Natural Gas Basis Derivative Swaps [Member] | Fourth Quarter 2018 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU   1,670,000   1,670,000  
Derivative, Basis Swap Type, Fixed Price   (0.10)   (0.10)  
Basis Swap [Member] | Natural Gas Basis Derivative Swaps [Member] | First Quarter 2019 [Member] | Successor [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Future Gas Production Hedged in MMBtu (Energy Item Type) | MMBTU   750,000   750,000  
Derivative, Basis Swap Type, Fixed Price   (0.11)   (0.11)