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Plant and Equipment
12 Months Ended
Dec. 31, 2011
Plant and Equipment [Abstract]  
Plant and Equipment

6.    Plant and Equipment

The Partnership’s plant and equipment consist of the following:

 

                 
    December 31,
2011
    December 31,
2010
 
    (In thousands)  

Plant construction in process

  $ 78     $ 6,279  

Plant and equipment at cost

    67,175       81,906  

Less accumulated depreciation

    (21,068     (25,837
   

 

 

   

 

 

 

Net book value

  $ 46,185     $ 62,348  
   

 

 

   

 

 

 

 

                         
    For the years ended
December 31,
 
    2011     2010     2009  
    (In thousands)  

Total depreciation expense on plant and equipment

  $ 8,589     $ 8,322     $ 7,998  
   

 

 

   

 

 

   

 

 

 

Under the provisions of one of the Partnership’s tipple leases, the lessee exercised its option to purchase the tipple and corresponding land for fair market value, which is greater than the carrying amount of the asset. In May 2011, the lessee paid a $1.0 million deposit that was nonrefundable. In August 2011, the lessee paid the remaining $4.5 million to complete the purchase of the tipple. The Partnership recognized a gain on the sale in the third quarter of $1.1 million, which is included in Other Revenue on the Consolidated Statements of Income.