Inventories (Tables)

3 Months Ended

Mar. 31, 2020

Inventories [Abstract]

Inventory Amounts by Product Type

Our inventory amounts by product type were as follows at the dates indicated:

	March 31, 2020		December 31, 2019
NGLs	$	893.9	$	1,094.9
Petrochemicals and refined products		199.8		311.5
Crude oil		432.9		674.2
Natural gas		12.2		10.8
Total	$	1,538.8	$	2,091.4

Cost of Sales and Lower of Cost or Market Adjustments

The following table presents our total cost of sales amounts and lower of cost or net realizable value adjustments for the periods indicated:

	For the Three Months Ended March 31,
	2020			2019
Cost of sales (1)		$	4,823.0		$	5,835.6
Lower of cost or net realizable value adjustments recognized in cost of sales			38.0			5.4

(1) Cost of sales is a component of “Operating costs and expenses” as presented on our Unaudited Condensed Statements of Consolidated Operations.  Fluctuations in these amounts are primarily due to changes in energy commodity prices and sales volumes associated with our marketing activities.