Leases (Tables)

3 Months Ended

Mar. 31, 2019

Lessee, Lease, Description [Line Items]

Lease, Cost [Table Text Block]

Lease costs represent the straight line lease expense of ROU assets and short-term leases. The components of lease cost are classified as follows:

	March 31, 2019(1)
Lease Cost included in the Condensed Consolidated Balance Sheets	(in millions)
Property, Plant and Equipment acquisitions(2)	$	4.7
	Three Months Ended
	March 31, 2019(1)
Lease Cost included in the Condensed Consolidated Statement of Operations	(in millions)
Lease operating expense	$	3.1
Gathering and other expense	1.5
General and administrative	1.6
Total lease cost	$	10.9

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⁽¹⁾  Prior periods are not presented as prior period amounts have not been adjusted under the modified retrospective method for the new lease recognition rule. Refer to Note 1 – Basis of Presentation for additional information.

⁽²⁾  Represents short-term lease capital expenditures related to drilling rigs for the three months ended March 31, 2019.

Lessee, Operating Leases [Text Block]

Lease term and discount rate related to the Company's leases are as follows:

	Three Months Ended
	March 31, 2019(1)
Weighted-average remaining lease term (years)	3.8
Weighted-average discount rate	8.1	%