Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income (loss)	$ 33,905
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion and amortization	60,460
Equity based compensation expense	5,595
Abandonment expense and impairment of unproved properties	(29)
Deferred tax expense (benefit)	9,069
(Gain) loss on sale of oil and natural gas properties	(7,357)
Non-cash portion of derivative (gain) loss	(6,412)
Amortization of debt issuance costs	214
Changes in operating assets and liabilities:
(Increase) decrease in accounts receivable	(20,567)
Increase in prepaid and other assets	(172)
Increase in accounts payable and other liabilities	18,434
Net cash provided by operating activities	93,140
Cash flows from investing activities:
Acquisition of oil and natural gas properties	(405,244)
Drilling and development capital expenditures	(198,299)
Purchases of other property and equipment	(2,457)
Proceeds from sales of oil and natural gas properties	10,675
Net cash used in investing activities	(595,325)
Cash flows from financing activities:
Issuance of Class A common shares	340,750
Underwriters discount and offering costs	(7,233)
Proceeds from revolving credit facility	50,000
Repayment of revolving credit facility	(15,000)
Financing obligation	0
Debt issuance costs	(415)
Net cash provided by financing activities	368,102
Net decrease in cash and cash equivalents	(134,083)
Cash and cash equivalents, beginning of period	134,083
Cash and cash equivalents, end of period	0
Supplemental cash flow information
Cash paid for interest	723
Supplemental non-cash activity
Accrued capital expenditures included in accounts payable and accrued expenses	80,651
Asset retirement obligations incurred, including changes in estimate	$ 649
Predecessor
Cash flows from operating activities:
Net income (loss)		$ (30,594)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion and amortization		42,485
Equity based compensation expense		0
Abandonment expense and impairment of unproved properties		897
Deferred tax expense (benefit)		(406)
(Gain) loss on sale of oil and natural gas properties		4
Non-cash portion of derivative (gain) loss		20,596
Amortization of debt issuance costs		244
Changes in operating assets and liabilities:
(Increase) decrease in accounts receivable		1,782
Increase in prepaid and other assets		(632)
Increase in accounts payable and other liabilities		1,228
Net cash provided by operating activities		35,604
Cash flows from investing activities:
Acquisition of oil and natural gas properties		(52,378)
Drilling and development capital expenditures		(33,044)
Purchases of other property and equipment		(33)
Proceeds from sales of oil and natural gas properties		0
Net cash used in investing activities		(85,455)
Cash flows from financing activities:
Issuance of Class A common shares		0
Underwriters discount and offering costs		0
Proceeds from revolving credit facility		55,000
Repayment of revolving credit facility		(5,000)
Financing obligation		(1,233)
Debt issuance costs		0
Net cash provided by financing activities		48,767
Net decrease in cash and cash equivalents		(1,084)
Cash and cash equivalents, beginning of period		1,768
Cash and cash equivalents, end of period		684
Supplemental cash flow information
Cash paid for interest		3,089
Supplemental non-cash activity
Accrued capital expenditures included in accounts payable and accrued expenses		4,574
Asset retirement obligations incurred, including changes in estimate		$ 134