Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments (Schedule of Derivative Instruments) (Details)

v3.7.0.1
Derivative Instruments (Schedule of Derivative Instruments) (Details)
Mar. 31, 2017
bbl / d
MMBTU / d
$ / bbl
$ / MMBTU
Remaining 2017 | NYMEX Henry Hub  
Derivative [Line Items]  
Daily Volume | MMBTU / d 576,845
Weighted average price (in usd per MMB/Bblstu) | $ / MMBTU 3.18
Remaining 2017 | ARGUS LLS  
Derivative [Line Items]  
Daily Volume | bbl / d 1,665
Weighted average price (in usd per MMB/Bblstu) | $ / bbl 52.32
Remaining 2017 | NYMEX WTI  
Derivative [Line Items]  
Daily Volume | bbl / d 4,113
Weighted average price (in usd per MMB/Bblstu) | $ / bbl 54.97
Remaining 2017 | Mont Belvieu C3  
Derivative [Line Items]  
Daily Volume | bbl / d 3,000
Weighted average price (in usd per MMB/Bblstu) | $ / bbl 26.63
Remaining 2017 | Mont Belvieu C5  
Derivative [Line Items]  
Daily Volume | bbl / d 250
Weighted average price (in usd per MMB/Bblstu) | $ / bbl 49.14
2018  
Derivative [Line Items]  
Daily Volume | MMBTU / d 30,000
Weighted average price (in usd per MMB/Bblstu) | $ / MMBTU 3.36
2018 | NYMEX Henry Hub  
Derivative [Line Items]  
Daily Volume | MMBTU / d 543,767
Weighted average price (in usd per MMB/Bblstu) | $ / MMBTU 3.09
2018 | NYMEX WTI  
Derivative [Line Items]  
Daily Volume | bbl / d 899
Weighted average price (in usd per MMB/Bblstu) | $ / bbl 55.31
2019 | NYMEX Henry Hub  
Derivative [Line Items]  
Daily Volume | MMBTU / d 9,863
Weighted average price (in usd per MMB/Bblstu) | $ / MMBTU 3.27
Short | 2018  
Derivative [Line Items]  
Daily Volume | MMBTU / d 30,000
Weighted average price (in usd per MMB/Bblstu) | $ / MMBTU 3.36
Short | Call Option | Remaining 2017 | NYMEX Henry Hub  
Derivative [Line Items]  
Daily Volume | MMBTU / d 65,000
Weighted average price (in usd per MMB/Bblstu) | $ / MMBTU 3.11
Short | Call Option | Remaining 2017 | NYMEX Henry Hub to NPG Mid-Continent  
Derivative [Line Items]  
Daily Volume | MMBTU / d 50,000
Weighted average price (in usd per MMB/Bblstu) | $ / MMBTU 0.26
Short | Call Option | 2018 | NYMEX Henry Hub  
Derivative [Line Items]  
Daily Volume | MMBTU / d 80,000
Weighted average price (in usd per MMB/Bblstu) | $ / MMBTU 3.29
Short | Call Option | 2018 | NYMEX Henry Hub to NPG Mid-Continent  
Derivative [Line Items]  
Daily Volume | MMBTU / d 12,329
Weighted average price (in usd per MMB/Bblstu) | $ / MMBTU 0.26
Short | Call Option | 2019 | NYMEX Henry Hub  
Derivative [Line Items]  
Daily Volume | MMBTU / d 4,932
Weighted average price (in usd per MMB/Bblstu) | $ / MMBTU 3.16