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Additional Balance Sheet Information
 6 Months Ended
Jun. 30, 2013
Text Block [Abstract]  
Additional Balance Sheet Information

(4) Additional Balance Sheet Information:

Certain balance sheet amounts are comprised of the following:

 

(Thousands of dollars)    June 30,
2013		     December 31,
2012		  

Accounts Receivable:

     

Joint interest billing

    $ 4,971      $ 2,189   

Trade receivables

      2,277        1,580   

Oil and gas sales

      10,283        9,362   

Other

      715        436   
  

 

 

    

 

 

  
     18,246        13,567   

Less: Allowance for doubtful accounts

      (327 )      (355 ) 
  

 

 

    

 

 

  

Total

    $ 17,919      $ 13,212   
  

 

 

    

 

 

  

Accounts Payable:

     

Trade

    $ 1,906      $ 3,968   

Royalty and other owners

      9,162        9,652   

Prepaid drilling deposits

      417        306   

Other

      5,862        5,642   
  

 

 

    

 

 

  

Total

    $ 17,347      $ 19,568   
  

 

 

    

 

 

  

Accrued Liabilities:

     

Compensation and related expenses

    $ 4,563      $ 2,517   

Property costs

      2,003        4,549   

Other

      816        552   
  

 

 

    

 

 

  

Total

    $ 7,382      $ 7,618