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UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
ASSETS    
Cash and cash equivalents $ 63,052 $ 85,109
Cash held by 1031 exchange facilitator 5,310 0
Business interruption insurance receivable 13,612 0
Inventories 94,436 77,000
Assets held for sale 4,483 6,466
Prepaid insurance 3,955 1,790
Other current assets 29,269 16,344
Total current assets 259,022 231,998
Property, plant and equipment, net 244,712 223,902
Intangibles, net 5,633 6,006
Deferred income taxes 17,389 15,081
Investments in unconsolidated subsidiaries 16,682 12,371
Operating lease right-of-use assets 7,744 8,667
Other non-current assets 46,224 41,683
Total assets 597,406 539,708
LIABILITIES AND EQUITY    
Revolving credit agreements 0 10,000
Current maturities of long-term debt 4,183 3,953
Asset retirement obligations 14,259 13,114
Accrued payroll 18,782 17,317
Deferred revenue 723 878
Federal income tax payable 4,310 0
Other current liabilities 9,452 7,118
Total current liabilities 68,923 69,986
Long-term debt 28,818 22,003
Long-term revolving credit agreements 37,221 0
Operating lease liabilities 7,652 8,782
Asset retirement obligations 38,491 39,499
Pension and other postretirement obligations 4,710 5,183
Liability for uncertain tax positions 5,795 5,795
Other long-term liabilities 8,486 6,120
Total liabilities 200,096 157,368
Common stock:    
Capital in excess of par value 31,621 28,672
Retained earnings 367,814 355,873
Accumulated other comprehensive loss (9,423) (9,654)
Total stockholders' equity 397,310 382,340
Total liabilities and equity 597,406 539,708
Nonrelated Party    
ASSETS    
Trade accounts receivable and accounts receivable from affiliates 39,098 37,429
LIABILITIES AND EQUITY    
Accounts payable and accounts payable to affiliates 16,232 16,702
Affiliated Entity    
ASSETS    
Trade accounts receivable and accounts receivable from affiliates 5,807 7,860
LIABILITIES AND EQUITY    
Accounts payable and accounts payable to affiliates 982 904
Class A Common Stock    
Common stock:    
Common stock 5,732 5,883
Class B Common Stock    
Common stock:    
Common stock $ 1,566 $ 1,566