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Condensed Consolidated Balance Sheets - USD ($)
Jun. 30, 2018
Sep. 30, 2017
Current Assets:    
Cash and cash equivalents $ 11,642,792 $ 23,912,100
Receivables - net 73,728,691 66,329,164
Inventories 363,514,581 349,333,013
Other current assets 40,171,936 6,265,737
Total Current Assets 489,058,000 445,840,014
Property and Equipment - Net 1,297,366,411 1,265,112,350
Other Assets 24,128,848 22,353,410
Total Assets 1,810,553,259 1,733,305,774
Current Liabilities:    
Current portion of long-term debt 12,811,783 12,210,571
Accounts payable - trade 170,005,278 150,901,051
Accrued expenses and current portion of other long-term liabilities 66,368,958 82,451,857
Total Current Liabilities 249,186,019 245,563,479
Deferred Income Taxes 65,065,000 69,918,000
Long-Term Debt 874,944,399 865,659,744
Other Long-Term Liabilities 41,132,479 41,112,548
Total Liabilities 1,230,327,897 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 566,901,124 497,727,765
Total Stockholders’ Equity 580,225,362 511,052,003
Total Liabilities and Stockholders’ Equity 1,810,553,259 1,733,305,774
Class A Common Stock [Member]    
Stockholders’ Equity    
Common stocks 706,765 704,202
Class B Common Stock [Member]    
Stockholders’ Equity    
Common stocks $ 306,224 $ 308,787