CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Statement of Cash Flows [Abstract]
Net income (loss)	$ 30,638	$ (175,034)
Cash flows from operating activities
Loss on extinguishment of debt	1,231	0
Depreciation, depletion and amortization	83,654	114,891
Impairments of oil and gas properties	1,811	271,498
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net (gains) losses	119,679	(109,879)
Cash settlements and premiums received (paid), net	46,041	(65,295)
Deferred income tax expense (benefit)	130	(31)
Gain (Loss) on Disposition of Other Assets	7	14
Noncash Interest Expense	1,742	3,336
Share-based compensation	4,179	2,582
Other, net	20	23
Changes in operating assets and liabilities, net	7,048	17,056
Net Cash Provided by (Used in) Operating Activities	204,084	189,723
Cash flows from investing activities
Capital expenditures	(146,638)	(139,010)
Proceeds from sales of assets, net	157	83
Net cash used in investing activities	(146,481)	(138,927)
Cash flows from financing activities
Proceeds from credit facility borrowings	20,000	51,000
Repayments of credit facility borrowings	(121,500)	(89,000)
Repayments of 2nd Lien Term	56,890	0
Proceeds from Issuance of Senior Long-term Debt	396,072	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	(3,397)	(78)
Net cash provided by (used in) financing activities	376,146	(38,078)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	433,749	12,718
Cash, cash equivalents and restricted cash – beginning of period	13,020	7,798
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	446,769	20,516
Cash, cash equivalents and restricted cash – end of period	35,258
Cash paid for:
Interest, net of amounts capitalized	14,298	20,959
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	$ 30,303	$ (30,579)