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v3.21.1

Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
ASSETS |  |
Cash and cash equivalents | $ 79,132 | $ 88,450
Trade accounts receivable, net | 22,301 | 18,894
Accounts receivable from affiliates | 7,513 | 4,764
Inventories | 45,102 | 47,551
Refundable federal income taxes | 14,518 | 17,615
Prepaid insurance | 11,903 | 2,564
Other current assets | 12,312 | 8,308
Total current assets | 192,781 | 188,146
Property, plant and equipment, net | 169,135 | 172,417
Intangibles, net | 34,348 | 35,330
Investments in unconsolidated subsidiaries | 29,763 | 28,978
Operating lease right-of-use assets | 9,959 | 10,324
Other non-current assets | 43,243 | 40,984
Total assets | 479,229 | 476,179
LIABILITIES AND EQUITY |  |
Accounts payable | 7,797 | 5,522
Accounts payable to affiliates | 440 | 125
Revolving credit agreements | 18,000 | 20,000
Current maturities of long-term debt | 2,068 | 2,112
Asset retirement obligations | 1,844 | 1,844
Accrued payroll | 7,309 | 14,430
Other current liabilities | 8,461 | 8,224
Total current liabilities | 45,919 | 52,257
Long-term debt | 24,292 | 24,353
Operating lease liabilities | 10,842 | 11,196
Asset retirement obligations | 40,506 | 39,888
Pension and other postretirement obligations | 8,315 | 8,838
Deferred income taxes | 17,973 | 17,550
Liability for uncertain tax positions | 9,413 | 9,413
Other long-term liabilities | 12,600 | 12,060
Total liabilities | 169,860 | 175,555
Common stock: |  |
Capital in excess of par value | 11,818 | 10,895
Retained earnings | 301,857 | 294,270
Accumulated other comprehensive loss | (11,456) | (11,599)
Total stockholders' equity | 309,369 | 300,624
Total liabilities and equity | 479,229 | 476,179
Class A Common Stock |  |
Common stock: |  |
Common stock | 5,583 | 5,490
Class B Common Stock |  |
Common stock: |  |
Common stock | $ 1,567 | $ 1,568

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