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Condensed Consolidated Balance Sheets - USD ($)
Mar. 31, 2018
Sep. 30, 2017
Current Assets:    
Cash and cash equivalents $ 6,930,976 $ 23,912,100
Receivables - net 73,726,783 66,329,164
Inventories 358,831,862 349,333,013
Other current assets 14,490,768 6,265,737
Total Current Assets 453,980,389 445,840,014
Property and Equipment - Net 1,296,264,023 1,265,112,350
Other Assets 24,331,422 22,353,410
Total Assets 1,774,575,834 1,733,305,774
Current Liabilities:    
Current portion of long-term debt 12,773,953 12,210,571
Accounts payable - trade 168,898,211 150,901,051
Accrued expenses and current portion of other long-term liabilities 68,911,947 82,451,857
Total Current Liabilities 250,584,111 245,563,479
Deferred Income Taxes 46,923,000 69,918,000
Long-Term Debt 876,109,482 865,659,744
Other Long-Term Liabilities 41,966,680 41,112,548
Total Liabilities 1,215,583,273 1,222,253,771
Stockholders’ Equity    
Preferred stock, $0.05 par value; 10,000,000 shares authorized; no shares issued
Paid-in capital in excess of par value 12,311,249 12,311,249
Retained earnings 545,668,323 497,727,765
Total Stockholders’ Equity 558,992,561 511,052,003
Total Liabilities and Stockholders’ Equity 1,774,575,834 1,733,305,774
Class A Common Stock [Member]    
Stockholders’ Equity    
Common stocks 706,302 704,202
Class B Common Stock [Member]    
Stockholders’ Equity    
Common stocks $ 306,687 $ 308,787