Acquisitions and Dispositions (Fair Value of Net Assets Acquired ) (Details) - Cimarex Energy Company $ in Thousands |
Aug. 31, 2018
USD ($)
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|---|---|
| Business Acquisition [Line Items] | |
| Asset retirement obligations | $ (570) |
| Net assets acquired | 539,519 |
| Evaluated oil and natural gas properties | |
| Business Acquisition [Line Items] | |
| Oil and natural gas properties | 253,089 |
| Unevaluated oil and natural gas properties | |
| Business Acquisition [Line Items] | |
| Oil and natural gas properties | $ 287,000 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of liabilities assumed at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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