Inventories and natural gas in storage (Tables)

3 Months Ended

Mar. 31, 2012

Inventories and natural gas in storage [Abstract]

Inventories

Inventories consisted of:

	March 31, 2012		March 31, 2011		December 31, 2011
	(In thousands)
Aggregates held for resale	$	85,958	$	82,086	$	78,518
Asphalt oil	82,949		51,506		32,335
Materials and supplies	68,369		61,788		61,611
Merchandise for resale	28,459		31,830		32,165
Natural gas in storage (current)	15,475		11,953		36,578
Other	32,131		23,533		32,998
Total	$	313,341	$	262,696	$	274,205