Inventories and natural gas in storage (Tables)

9 Months Ended

Sep. 30, 2018

Inventory Disclosure [Abstract]

Inventories

Inventories on the Consolidated Balance Sheets were as follows:

	September 30, 2018		September 30, 2017		December 31, 2017
	(In thousands)
Aggregates held for resale	$	133,477	$	116,399	$	115,268
Asphalt oil	40,781		26,682		30,360
Natural gas in storage (current)	29,084		29,974		20,950
Materials and supplies	23,563		20,778		18,650
Merchandise for resale	15,954		15,346		14,905
Other	27,434		23,376		26,450
Total	$	270,293	$	232,555	$	226,583