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Revenue (Table) | 12 Months Ended
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Dec. 31, 2018
Revenue [Abstract] |
Revenues From Contracts With Customers |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | Year Ended December 31,
﻿ |  | 2018 |  | 2017 |  | 2016
﻿ |  | (in thousands)
﻿Revenue from customer contracts: |  |  |  |  |  |  |  |  |
﻿Sales under the COSPA |  | $ | 104,891 |  | $ | 74,693 |  | $ | 59,475
﻿Gabonese government share of Profit Oil |  |  | 2,193 |  |  | 11,638 |  |  | 9,248
﻿U.S. oil and natural gas revenue |  |  | 5 |  |  | 47 |  |  | 324
﻿Other items reported in revenue not associated with customer contracts: |  |  |  |  |  |  |  |  |
﻿Gabonese government share of Profit Oil taken in-kind |  |  | 9,385 |  |  | — |  |  | —
﻿Carried interest recoupment |  |  | 3,545 |  |  | 2,205 |  |  | —
﻿Royalties |  |  | (15,076) |  |  | (11,558) |  |  | (9,263)
﻿Total revenue, net |  | $ | 104,943 |  | $ | 77,025 |  | $ | 59,784
﻿

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