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Note 6 - Revenue - Revenue by Areas of Capability (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Total revenue $ 280,477 $ 156,295
Well Construction [Member]    
Total revenue 111,435 0
Well Management [Member]    
Total revenue $ 169,042 $ 156,295