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Suspended Exploratory Well Costs (Tables) | 9 Months Ended
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Sep. 30, 2021
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 nine months ended September 30, 2021 (in thousands):
|  | 2021 |
Balance at beginning of period |  | $ | 7,709 |
Additions to capitalized exploratory well costs pending the determination of proved reserves |  |  | 6,299 |
Reclassifications to wells, facilities and equipment based on determination of proved reserves |  |  | (14,008 | )
Capitalized exploratory well costs, charged to expense |  |  | — |
Balance at end of period |  | $ | — |
Less exploratory well costs that have been capitalized for a period of one year or less |  | $ | — |
Capitalized exploratory well costs that have been capitalized for a period greater than one year |  | $ | — |

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