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SCHEDULE II - Valuation and Qualifying Accounts
12 Months Ended
Dec. 31, 2011
SCHEDULE II - Valuation & Qualifying Accounts [Abstract]  
SCHEDULE II - Valuation & Qualifying Accounts
SCHEDULE II

Lufkin Industries, Inc.
Valuation & Qualifying Accounts
(in thousands of dollars)

      
Additions
       
   
Balance at
     
Charged to
     
Balance at
 
   
Beginning
  
Charged
  
Other
     
End of
 
Description
 
of Year
  
to Expense
  
Accounts
  
Deductions
  
Year
 
                 
Allowance for Doubtful Receivables:
               
                 
Year Ended December 31, 2011
 $260   (57)  11   (89) $125 
Year Ended December 31, 2010
  240   (93)  -   113   260 
Year Ended December 31, 2009
 $735   (1,844)  -   1,349  $240 
                      
Inventory: Valuation Reserves:
                    
                      
Year Ended December 31, 2011
 $2,383   229   556   (24) $3,144 
Year Ended December 31, 2010
  2,643   (224)  -   (36)  2,383 
Year Ended December 31, 2009
 $4,535   100   -   (1,992) $2,643 
                      
Inventory: LIFO Reserves:
                    
                      
Year Ended December 31, 2011
 $28,776   3,327   -   -  $32,103 
Year Ended December 31, 2010
  29,961   (1,185)  -   -   28,776 
Year Ended December 31, 2009
 $32,926   (2,965)  -   -  $29,961