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Mineral Leaseholds, Net (Tables)
3 Months Ended
Mar. 31, 2023
Extractive Industries [Abstract]  
Mineral Leaseholds, Net of Accumulated Depletion
Mineral leaseholds, net of accumulated depletion, consisted of the following:
March 31, 2023December 31, 2022
Mineral leaseholds$1,269 $1,282 
Less: accumulated depletion(586)(581)
Mineral leaseholds, net$683 $701