Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 35,613	$ 21,891
Accounts receivable	41,174	44,453
Inventories	44,973	15,791
Prepaid expenses and other	25,729	4,626
Total current assets	147,489	86,761
Property, plant and equipment, net	429,842	227,077
Financing lease right-of-use assets, net	12,905	9,128
Advanced coal royalties	3,271	5,576
Other	2,832	491
Total Assets	596,339	329,033
Current liabilities
Accounts payable	34,825	15,346
Accrued expenses	41,806	19,410
Asset retirement obligations	29	489
Current portion of long-term debt	35,639	7,674
Current portion of related party debt	40,000
Current portion of financing lease obligations	5,969	3,461
Insurance financing liability	4,577	280
Total current liabilities	162,845	46,660
Asset retirement obligations	28,856	22,060
Long-term debt, net	18,757	3,339
Long-term financing lease obligations, net	4,917	4,599
Senior notes, net	32,830	32,363
Deferred tax liability, net	35,637	6,406
Other long-term liabilities	3,299	2,532
Total liabilities	287,141	117,959
Commitments and contingencies
Stockholders' Equity
Preferred stock, $0.01 par value, 50,000,000 shares authorized, none issued and outstanding
Common stock, $0.01 par value, 260,000,000 shares authorized, 44,155,735 at December 31, 2022 and 44,092,981 at December 31, 2021 shares issued and outstanding	442	441
Additional paid-in capital	168,711	163,566
Retained earnings	140,045	47,067
Total stockholders' equity	309,198	211,074
Total Liabilities and Stockholders' Equity	$ 596,339	$ 329,033