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BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Current assets:    
Cash and cash equivalents $ 491,547 $ 738,197
Short-term investments 14,622 9,030
Trade accounts receivable 140,867 98,225
Other receivables 728 4,379
Income tax receivable 0 7,833
Inventories, net 207,590 183,949
Prepaid expenses and other 31,708 27,553
Total current assets 887,062 1,069,166
Restricted cash 7,585 0
Mineral interests, net 72,245 80,442
Property, plant and equipment, net 1,549,470 1,179,609
Deferred income taxes 3,210 5,854
Long-term investments 44,604 0
Other long-term assets 27,340 21,987
Total assets 2,591,516 2,357,058
Current liabilities:    
Accounts payable 40,178 36,245
Accrued expenses 85,369 81,612
Asset retirement obligations 13,032 12,500
Short-term financing lease obligations 13,208 11,463
Other current liabilities 18,643 5,850
Total current liabilities 170,430 147,670
Long-term debt 153,612 153,023
Asset retirement obligations 72,138 71,666
Black lung obligations 34,467 26,966
Financing lease obligations 6,217 8,756
Deferred income taxes 63,835 74,531
Total liabilities 500,699 482,612
Stockholders’ Equity:    
Common stock, $0.01 par value per share (Authorized -140,000,000 shares, 54,533,374 issued and 52,311,533 outstanding as of December 31, 2024 and 54,240,764 issued and 52,018,923 outstanding as of December 31, 2023) 545 542
Preferred stock, $0.01 par value per share (10,000,000 shares authorized, no shares issued and outstanding) 0 0
Treasury stock, at cost (2,221,841 shares as of December 31, 2024, and December 31, 2023) (50,576) (50,576)
Additional paid in capital 289,808 279,332
Retained earnings 1,851,040 1,645,148
Total stockholders’ equity 2,090,817 1,874,446
Total liabilities and stockholders’ equity $ 2,591,516 $ 2,357,058