XML 22 R11.htm IDEA: XBRL DOCUMENT v3.8.0.1
Property and Equipment
3 Months Ended
Mar. 31, 2018
Property, Plant and Equipment [Abstract]  
Property and Equipment

(4) Property and Equipment:

Property and equipment at March 31, 2018 and December 31, 2017 consisted of the following:

 

(Thousands of dollars)    March 31,
2018
     December 31,
2017
 

Proved oil and gas properties, at cost

   $ 483,488      $ 476,570  

Less: Accumulated depletion and depreciation

     (267,377      (263,569
  

 

 

    

 

 

 

Oil and Gas Properties, Net

   $ 216,111      $ 213,001  
  

 

 

    

 

 

 

Field and office equipment

   $ 26,188      $ 26,241  

Less: Accumulated depreciation

     (19,417      (19,267
  

 

 

    

 

 

 

Field and Office Equipment, Net

   $ 6,771      $ 6,974  
  

 

 

    

 

 

 

Total Property and Equipment, Net

   $ 222,882      $ 219,975