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Inventories
3 Months Ended
Mar. 31, 2014
Inventories [Abstract]  
Inventories
Note 4 — Inventories

The components of inventories consisted of the following:

 
 
March 31, 2014
  
December 31, 2013
 
Commodities
 
$
74.7
  
$
136.4
 
Materials and supplies
  
13.8
   
14.3
 
 
 
$
88.5
  
$
150.7