Inventories and natural gas in storage (Tables)

3 Months Ended

Mar. 31, 2013

Inventories and natural gas in storage [Abstract]

Inventories

Inventories consisted of:

	March 31, 2013		March 31, 2012		December 31, 2012
	(In thousands)
Aggregates held for resale	$	98,120	$	85,958	$	87,715
Asphalt oil	94,332		82,949		67,480
Materials and supplies	75,868		68,369		69,390
Merchandise for resale	24,342		28,459		31,172
Natural gas in storage (current)	12,811		15,475		29,030
Other	29,399		32,131		32,628
Total	$	334,872	$	313,341	$	317,415