CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Statement of Cash Flows [Abstract]
Net income (loss)	$ (12,425)	$ 68,379
Cash flows from operating activities
Loss on exchange of debt	1,231	0
Depreciation, depletion and amortization	52,679	77,853
Impairments of oil and gas properties	1,811	35,509
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net (gains) losses	98,595	(116,770)
Cash settlements and premiums received (paid), net	23,803	(58,877)
Deferred income tax expense (benefit)	(249)	1,534
Gain (Loss) on Disposition of Other Assets	4	14
Noncash Interest Expense	1,179	2,537
Share-based compensation	3,208	1,807
Other, net	13	14
Changes in operating assets and liabilities, net	476	(831)
Net Cash Provided by (Used in) Operating Activities	122,711	128,895
Cash flows from investing activities
Capital expenditures	(95,706)	(112,827)
Proceeds from sales of assets, net	153	83
Net cash used in investing activities	(95,553)	(112,744)
Cash flows from financing activities
Proceeds from credit facility borrowings	20,000	46,000
Repayment of credit facility borrowings	(95,500)	(49,000)
Repayments of 2nd Lien Term	55,015	0
Proceeds from Issuance of Common Limited Partners Units	151,160	0
Proceeds from Issuance of Redeemable Preferred Stock	2	0
Transaction costs of noncontrolling interest paid	5,543	0
Issue costs of noncontrolling interest securities paid	(3,758)	0
Debt issuance costs paid	(1,830)	(72)
Proceeds from (Payments for) Other Financing Activities	0	1,068
Net cash provided by (used in) financing activities	9,516	(2,004)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	36,674	14,147
Cash and cash equivalents – beginning of period	13,020	7,798
Cash and cash equivalents – end of period	49,694	21,945
Cash paid for:
Interest, net of amounts capitalized	9,638	14,316
Income Taxes Paid, Net	360	(2,471)
Non-cash investing and financing activities:
Changes in property and equipment related to capital contributions	(38,561)	0
Changes in asset retirement obligation related to capital contributions	14	0
Increase (Decrease) in accrued liabilities related to capital contributions	146	0
Changes in accrued liabilities related to capital expenditures	$ 22,891	$ (20,294)