Annual report pursuant to Section 13 and 15(d)

Derivatives And Fair Value (Narrative) (Details)

v3.6.0.2
Derivatives And Fair Value (Narrative) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2016
USD ($)
$ / Boe
bbl
Crude Oil Put Contracts, Premium Paid | $ $ 2.9
Derivative, Nonmonetary Notional Amount, Volume | bbl 792,000
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member]  
Underlying, Derivative Energy Measure | $ / Boe 48.46