Basis of Presentation Restricted Cash (Tables)

9 Months Ended

Sep. 30, 2018

Restrictions on Cash and Cash Equivalents [Table Text Block]

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Condensed Consolidated Balance Sheets to the amounts shown in the Condensed Consolidated Statements of Cash Flows:



	September 30,
	2018		2017
	(in millions)
Cash and cash equivalents	$	—	$	782.6
Restricted cash⁽¹⁾	27.2		59.2
Total cash, cash equivalents and restricted cash shown in the Condensed Consolidated Statements of Cash Flows	$	27.2	$	841.8

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⁽¹⁾

As of September 30, 2018, the restricted cash balance consisted of $27.2 million related to cash deposited into an escrow account for a title dispute between outside parties in the Williston Basin and is included within "Other noncurrent assets" on the Condensed Consolidated Balance Sheet. As of September 30, 2017, the restricted cash balance consisted of $59.2 million related to cash deposited into an escrow account related to the 2017 Permian Basin Acquisition (defined below) and cash deposited into an escrow account for a title dispute between outside parties in the Williston Basin and is included within "Other noncurrent assets" on the Condensed Consolidated Balance Sheet provided within the Quarterly Report on Form 10-Q.