Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 33,883	$ 35,613
Accounts receivable	58,973	41,174
Inventories	67,425	44,973
Prepaid expenses and other	17,521	25,729
Total current assets	177,802	147,489
Property, plant and equipment, net	457,564	429,842
Financing lease right-of-use assets, net	17,363	12,905
Advanced coal royalties	3,464	3,271
Other	4,198	2,832
Total Assets	660,391	596,339
Current liabilities
Accounts payable	49,781	34,825
Accrued liabilities	38,703	41,806
Current portion of asset retirement obligations	29	29
Current portion of long-term debt	25,333	35,639
Current portion of related party debt	20,000	40,000
Current portion of financing lease obligations	7,366	5,969
Insurance financing liability	846	4,577
Total current liabilities	142,058	162,845
Asset retirement obligations, net	29,555	28,856
Long-term debt, net	63,975	18,757
Long-term financing lease obligations, net	8,296	4,917
Senior notes, net	33,061	32,830
Deferred tax liability, net	42,257	35,637
Other long-term liabilities	4,084	3,299
Total liabilities	323,286	287,141
Commitments and contingencies
Stockholders' Equity
Preferred stock, $0.01 par value, 50,000,000 shares authorized, none issued and outstanding
Common stock		442
Additional paid-in capital	272,728	168,711
Retained earnings	63,850	140,045
Total stockholders' equity	337,105	309,198
Total Liabilities and Stockholders' Equity	660,391	$ 596,339
Class A Common Stock
Stockholders' Equity
Common stock	439
Class B Common Stock
Stockholders' Equity
Common stock	$ 88