Inventories and natural gas in storage (Tables)

6 Months Ended

Jun. 30, 2017

Inventory Disclosure [Abstract]

Inventories

Inventories consisted of:

	June 30, 2017		June 30, 2016		December 31, 2016
	(In thousands)
Aggregates held for resale	$	123,316	$	130,544	$	115,471
Asphalt oil	46,852		42,591		29,103
Materials and supplies	22,657		20,765		18,372
Merchandise for resale	16,164		18,439		16,437
Natural gas in storage (current)	14,126		19,689		25,761
Other	26,755		33,821		33,129
Total	$	249,870	$	265,849	$	238,273