XML 22 R11.htm IDEA: XBRL DOCUMENT v3.21.2
Property and Equipment
9 Months Ended
Sep. 30, 2021
Property, Plant and Equipment [Abstract]  
Property and Equipment
(4) Property and Equipment:
Property and equipment at September 30, 2021 and December 31, 2020 consisted of the following:
 
(Thousands of dollars)
  
September 
30,
 
2021
    
December 31,
2020
 
Proved oil and gas properties, at cost
   $ 531,475      $ 520,488  
Less: Accumulated depletion and depreciation
     (354,978 )      (335,390
    
 
 
    
 
 
 
Oil and Gas Properties, Net
   $ 176,497      $ 185,098  
    
 
 
    
 
 
 
Field and office equipment
   $ 27,018      $ 26,797  
Less: Accumulated depreciation
     (21,244 )      (20,842
    
 
 
    
 
 
 
Field and Office Equipment, Net
   $ 5,774      $ 5,955  
    
 
 
    
 
 
 
Total Property and Equipment, Net
   $ 182,271      $ 191,053