Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jul. 31, 2020	Apr. 30, 2020
Current assets:
Cash and cash equivalents	$ 246,516	$ 78,275
Receivables	55,647	48,500
Inventories	238,795	236,007
Prepaid expenses	17,133	9,801
Income tax receivable	0	14,667
Total current assets	558,091	387,250
Other assets, net of amortization	70,877	71,766
Goodwill	161,075	161,075
Property and equipment, net of accumulated depreciation of $2,050,737 at July 31, 2020 and $2,037,708 at April 30, 2020	3,308,950	3,323,801
Total assets	4,098,993	3,943,892
Current liabilities:
Lines of credit	0	120,000
Current maturities of long-term debt and finance lease obligations	2,269	570,280
Accounts payable	310,118	184,800
Accrued expenses	210,078	188,348
Income tax payable	11,451	0
Total current liabilities	533,916	1,063,428
Long-term debt and finance lease obligations, net of current maturities	1,281,741	714,502
Deferred income taxes	445,365	435,598
Deferred compensation	14,432	13,604
Insurance accruals, net of current portion	20,766	22,862
Other long-term liabilities	51,535	50,693
Total liabilities	2,347,755	2,300,687
Shareholders’ equity:
Preferred stock, no par value	0	0
Common stock, no par value	32,601	33,286
Retained earnings	1,718,637	1,609,919
Total shareholders’ equity	1,751,238	1,643,205
Total liabilities and shareholders' equity	$ 4,098,993	$ 3,943,892