Inventories and natural gas in storage (Tables)

9 Months Ended

Sep. 30, 2013

Inventory Disclosure [Abstract]

Inventories

Inventories consisted of:

	September 30, 2013		September 30, 2012		December 31, 2012
	(In thousands)
Aggregates held for resale	$	104,784	$	88,632	$	87,715
Asphalt oil	43,078		47,084		67,480
Materials and supplies	71,370		75,551		69,390
Merchandise for resale	23,713		30,827		31,172
Natural gas in storage (current)	37,689		41,091		29,030
Other	33,937		32,582		32,628
Total	$	314,571	$	315,767	$	317,415