CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands		7 Months Ended	12 Months Ended
		Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2017
REVENUES AND OTHER:
Midstream services — affiliate (Note 3)		$ 0	$ 76,750,000	$ 15,142,000
Other		0	1,608,000	0
Total revenues and other		0	78,358,000	15,142,000
OPERATING EXPENSES:
Gathering, processing, and transmission	[1]	0	53,922,000	16,597,000
General and administrative	[2]	0	7,368,000	3,991,000
Depreciation and accretion		0	20,068,000	5,991,000
Taxes other than income		0	7,633,000	97,000
Financing costs, net		0	107,000	0
Total operating expenses		0	89,098,000	26,676,000
NET LOSS BEFORE INCOME TAXES		0	(10,740,000)	(11,534,000)
Current income tax benefit		0	(1,041,000)	0
Deferred income tax (benefit) expense		0	(9,460,000)	7,041,000
NET LOSS INCLUDING NONCONTROLLING INTEREST		0	(239,000)	(18,575,000)
Net income attributable to noncontrolling interest		0	4,149,000	0
NET LOSS ATTRIBUTABLE TO CLASS A COMMON SHAREHOLDERS		$ 0	$ (4,388,000)	$ (18,575,000)
NET LOSS ATTRIBUTABLE TO CLASS A COMMON SHAREHOLDERS, PER SHARE
Basic (in USD per share)		$ 0.00	$ (0.03)	$ (0.30)
Diluted (in USD per share)		$ 0.00	$ (0.03)	$ (0.30)
WEIGHTED AVERAGE SHARES
Basic (in shares)	[3]	6,293	173,125	62,259
Diluted (in shares)	[3]	6,293	173,125	62,259

[1] Includes amounts of $9.1 million and $4.7 million to related parties for the year ended December 31, 2018 and 2017, respectively. Refer to Note 3 — Transactions with Affiliates.

[2] Includes amounts of $6.5 million and $4.0 million to related parties for the year ended December 31, 2018 and 2017, respectively. Refer to Note 3 — Transactions with Affiliates.

[3] For periods prior to the Business Combination, the number of shares has been retroactively restated to reflect the number of shares received by Apache. For further detail of the Business Combination and associated financial statement presentation, please refer to Note 1 — Summary of Significant Accounting Policies and Note 2 — Recapitalization Transaction.