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Inventory
3 Months Ended
Mar. 31, 2015
Inventory [Abstract]  
Inventory

(3) INVENTORY

 

Inventory is comprised of natural gas in underground storage and tubular and other equipment. Natural gas in underground storage is carried at the lower of cost or market and accounted for by a weighted average cost method. Tubulars and other equipment are carried at the lower of cost or market and are accounted for by a moving weighted average cost method that is applied within specific classes of inventory items.  

 

The components of inventory recorded in current assets as of March 31, 2015 and December 31, 2014 consisted of the following:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

March 31,

 

 

December 31,

 

 

2015

 

 

2014

 

 

 

 

 

 

(in millions)

Tubulars and other equipment

$

37 

 

$

33 

Natural gas in underground storage

$

 

$