Annual report pursuant to Section 13 and 15(d)

PROPERTY, PLANT AND EQUIPMENT - Summary of Property, Plant and Equipment Comprised of Fixed Assets and Oil and Gas Properties (Detail)

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PROPERTY, PLANT AND EQUIPMENT - Summary of Property, Plant and Equipment Comprised of Fixed Assets and Oil and Gas Properties (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 161,644 $ 132,504
Accumulated depreciation and depletion   (1,924)
Total property, plant and equipment, net   130,580
Right of use asset — finance leases (Note 17) 13,437  
Accumulated depreciation and depletion (22,041)  
Property, plant and equipment, net 153,040  
Land    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 13,808 13,276
Proved properties    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 142,494 101,459
Unproved properties    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 0 10,204
Wells in progress    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross 57 4,660
Corporate and other    
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, gross $ 5,285 $ 2,905