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v3.19.1

Acquisition (Narrative) (Details) $ in Thousands | 1 Months Ended | 3 Months Ended
--- | --- | ---
Dec. 31, 2018 USD ($) Boe / d MMBoe | Mar. 31, 2019 USD ($) | Mar. 31, 2018 USD ($) | [1]
Business Acquisition [Line Items] |  |  |
Revenue from sales to customers |  | $ 590,550 | $ 396,329
Income (loss) from continuing operations before income taxes |  | 33,745 | $ (21,058)
Petrobas America Inc [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Production capacity | Boe / d | 50,000 |  |
Proved reserves | MMBoe | 97 |  |
Acquisition, cash paid | $ 788,724 |  |
Percentage of interest in subsidiary transferred | 20.00% |  |
Revenue from sales to customers |  | 234,000 |
Income (loss) from continuing operations before income taxes |  | $ 147,700 |
Petrobas America Inc [Member] | Sales Thresholds 2019 to 2022 [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Contingent consideration, maximum | $ 150,000 |  |
MP Gulf Of Mexico LLC [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Parent ownership interest | 80.00% |  |
Petrobas America Inc [Member] | MP Gulf Of Mexico LLC [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Noncontrolling ownership interest | 20.00% |  |
[1] | Reclassified to conform to current presentation (see Note A).

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