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D. OIL AND GAS RESERVES (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2020
USD ($)
Extractive Industries [Abstract]  
Revenue from sale of oil and gas operations $ 85,000
Accounting value of assets 659,000
Liabilities of assets sold 2,914,000
Reserve to close down asset 2,745,000
Sale of assets 2,138,000
Oil and gas reserves $ 2,285,000