Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 43,461	$ 21,891
Accounts receivable	52,746	44,453
Inventories	32,388	15,791
Prepaid expenses and other	3,513	4,626
Total current assets	132,108	86,761
Property, plant and equipment, net	341,596	227,077
Financing lease right-of-use assets, net	10,913	9,128
Advanced coal royalties	2,903	5,576
Other	2,186	491
Total Assets	489,706	329,033
Current liabilities
Accounts payable	34,363	15,346
Accrued expenses	35,350	19,410
Asset retirement obligations	484	489
Current portion of long-term debt	6,066	7,674
Current portion of related party debt	30,000
Current portion of financing lease obligations	4,465	3,461
Other current liabilities	70	280
Total current liabilities	110,798	46,660
Asset retirement obligations	24,763	22,060
Long-term debt, net	1,877	3,339
Long-term related party debt	20,000
Long-term financing lease obligations, net	4,501	4,599
Senior notes, net	32,594	32,363
Deferred tax liability, net	12,854	6,406
Other long-term liabilities	2,637	2,532
Total liabilities	210,024	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, 44,072,611 at June 30, 2022 and 44,092,981 at December 31, 2021 shares issued and outstanding	441	441
Additional paid-in capital	164,918	163,566
Retained earnings	114,323	47,067
Total stockholders' equity	279,682	211,074
Total Liabilities and Stockholders' Equity	$ 489,706	$ 329,033