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Suspended Exploratory Well Costs (Tables) | 12 Months Ended
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Dec. 31, 2020
Capitalized Exploratory Well Costs [Abstract] |
Schedule Of Changes In Capitalized Exploratory Well Costs | The following table reflects the changes in capitalized exploratory well costs for the year ended December 31, 2020. We had no capitalized exploratory well costs for the years ended December 31, 2019 and 2018 (in thousands):
|  | 2020 |  |
Balance at beginning of period | $ | — |  |
Additions to capitalized exploratory well costs pending the determination of proved reserves |  | 7,709 |  |
Reclassifications to wells, facilities and equipment based on determination of proved reserves |  | — |  |
Capitalized exploratory well costs, charged to expense |  | — |  |
Balance at end of period | $ | 7,709 |  |
Less exploratory well costs that have been capitalized for a period of one year or less | $ | 7,709 |  |
Capitalized exploratory well costs that have been capitalized for a period greater than one year | $ | — |  |

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