Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Oct. 31, 2020	Apr. 30, 2020
Current assets:
Cash and cash equivalents	$ 404,685	$ 78,275
Receivables	56,109	48,500
Inventories	249,842	236,007
Prepaid expenses	18,182	9,801
Income taxes receivable	0	14,667
Total current assets	728,818	387,250
Other assets, net of amortization	72,198	71,766
Goodwill	161,075	161,075
Property and equipment, net of accumulated depreciation of $2,104,012 at October 31, 2020 and $2,037,708 at April 30, 2020	3,361,577	3,323,801
Total assets	4,323,668	3,943,892
Current liabilities:
Lines of credit	0	120,000
Current maturities of long-term debt and finance lease obligations	2,297	570,280
Accounts payable	323,662	184,800
Accrued expenses	229,311	188,348
Income taxes payable	6,739	0
Total current liabilities	562,009	1,063,428
Long-term debt and finance lease obligations, net of current maturities	1,361,925	714,502
Deferred income taxes	451,205	435,598
Deferred compensation	14,365	13,604
Insurance accruals, net of current portion	20,924	22,862
Other long-term liabilities	53,389	50,693
Total liabilities	2,463,817	2,300,687
Shareholders’ equity:
Preferred stock, no par value	0	0
Common stock, no par value	41,114	33,286
Retained earnings	1,818,737	1,609,919
Total shareholders’ equity	1,859,851	1,643,205
Total liabilities and shareholders' equity	$ 4,323,668	$ 3,943,892