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Inventories and natural gas in storage (Tables)

9 Months Ended

Sep. 30, 2012

Inventories and natural gas in storage [Abstract]

Inventories

Inventories consisted of:

	September 30, 2012			September 30, 2011			December 31, 2011
	(In thousands)
Aggregates held for resale	$	88,632		$	80,868		$	78,518
Materials and supplies	75,551			64,988			61,611
Asphalt oil	47,084			26,851			32,335
Natural gas in storage (current)	41,091			39,629			36,578
Merchandise for resale	30,827			30,974			32,165
Other	32,582			26,259			32,998
Total	$	315,767		$	269,569		$	274,205

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- Definition

Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 2

-Paragraph 6

-Subparagraph a,b,c

-Article 5

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