Oil and Natural Gas Properties (Narrative) (Details) $ in Thousands |
3 Months Ended | 6 Months Ended |
|---|---|---|
|
Jun. 30, 2016
USD ($)
|
Jun. 30, 2016
USD ($)
$ / Mcfe
$ / bbl
|
|
| Write-down of oil and natural gas properties | $ | $ 61,012 | $ 95,788 |
| Crude Oil [Member] | ||
| Prices used in determining estimated future net cash flows from proved reserves | $ / bbl | 40.62 | |
| Natural Gas [Member] | ||
| Prices used in determining estimated future net cash flows from proved reserves | $ / Mcfe | 2.46 |
| X | ||||||||||
- Definition The revenues derived from sales of oil or gas in each geographic area during the reporting period divided by the number of barrels of oil produced or thousands of cubic feet of gas produced. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|