Supplemental Balance Sheet Detail (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Prepaid and other current assets:
Inventories	$ 11,085	$ 10,305
Prepaid expenses	2,416	10,693
Prepaid and other current assets	13,501	20,998
Other assets:
Deferred issuance costs of the Credit Facility, net of amortization	2,920	3,308
Right-of-use assets – operating leases	1,279	1,671
Deposits	6,411	0
Other	125	38
Other assets	10,735	5,017
Accounts payable and accrued liabilities:
Trade accounts payable	31,164	32,452
Drilling and other lease operating costs	66,701	35,045
Revenue and royalties payable	134,474	95,521
Production, ad valorem and other taxes	15,882	7,905
Derivative settlements to counterparties	23,135	6,117
Compensation and benefits	5,547	13,942
Interest	14,310	15,321
Environmental remediation liability	2,105	2,287
Current operating lease obligations	874	914
Other	5,029	4,877
Accounts payable and accrued liabilities	299,221	214,381
Other non-current liabilities:
Asset retirement obligations	8,374	8,413
Non-current operating lease obligations	547	975
Postretirement benefit plan obligations	937	970
Other non-current liabilities	9,858	10,358
Tubular inventory and well materials	10,400	9,500
Capitalized costs - crude oil in storage	700	800
Drilling and completion prepayment	$ 800	$ 9,600