Inventories (Tables)

9 Months Ended

Sep. 30, 2017

Inventory Disclosure [Abstract]

Schedule Of Inventory

Inventories consist of the following:

	September 30, 2017		December 31, 2016
Finished products	$	488,061	$	500,861
Feedstock, additives and chemicals	213,144		216,877
Materials and supplies	133,630		83,362
Inventories	$	834,835	$	801,100