|
Fair Value Measurements (Details) (USD $)
In Thousands, unless otherwise specified |
6 Months Ended | ||
|---|---|---|---|
|
Jun. 30, 2013
|
Jun. 30, 2012
|
Dec. 31, 2012
|
|
| 公允价值、经常性和非经常性计量资产和负债[细目] | |||
| Assets | $ 863 | $ 664 | |
| Asset retirement obligation capitalized | 1,194 | 1,176 | |
|
Level 1[会员]| Diamondback Energy LLC[会员]
|
|||
| 公允价值、经常性和非经常性计量资产和负债[细目] | |||
| Equity investment in Diamondback | 198,662 | ||
|
一级[会员]|固定价格掉期[会员]
|
|||
| 公允价值、经常性和非经常性计量资产和负债[细目] | |||
| Assets | 0 | ||
| Liabilities | 0 | ||
|
Level 2[会员]| Diamondback Energy LLC[会员]
|
|||
| 公允价值、经常性和非经常性计量资产和负债[细目] | |||
| Equity investment in Diamondback | 0 | ||
|
二级[会员]|固定价格掉期[会员]
|
|||
| 公允价值、经常性和非经常性计量资产和负债[细目] | |||
| Assets | 863 | ||
| Liabilities | 1,839 | ||
|
Level 3 [Member]
|
|||
| 公允价值、经常性和非经常性计量资产和负债[细目] | |||
| Asset retirement obligation capitalized | 1,200 | ||
|
Level 3[成员]| Diamondback Energy LLC[成员]
|
|||
| 公允价值、经常性和非经常性计量资产和负债[细目] | |||
| Equity investment in Diamondback | 0 | ||
|
三级[会员]|固定价格掉期[会员]
|
|||
| 公允价值、经常性和非经常性计量资产和负债[细目] | |||
| Assets | 0 | ||
| Liabilities | $ 0 | ||