Quarterly report pursuant to Section 13 or 15(d)

Property, Plant and Equipment (Detail)

v3.20.1
Property, Plant and Equipment (Detail) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment at cost $ 161,382 $ 161,644
Right of use asset — finance leases (Note 13) 13,371 13,437
Accumulated DD&A (27,855) (22,041)
Total property, plant and equipment, net 146,898 153,040
Land    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment at cost 13,808 13,808
Proved oil and natural gas properties    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment at cost 142,289 142,494
Wells in progress    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment at cost 0 57
Corporate and other    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment at cost $ 5,285 $ 5,285