Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Oct. 31, 2018	Apr. 30, 2018
Current assets:
Cash and cash equivalents	$ 51,887	$ 53,679
Receivables	46,875	45,045
Inventories	258,644	241,668
Prepaid expenses	7,923	5,766
Income tax receivable	16,849	50,682
Total current assets	382,178	396,840
Other assets, net of amortization	39,813	29,909
Goodwill	140,623	140,258
Property and equipment, net of accumulated depreciation of $1,715,433 at October 31, 2018 and $1,611,177 at April 30, 2018	2,983,043	2,902,920
Total assets	3,545,657	3,469,927
Current liabilities:
Notes payable to bank	0	39,600
Current maturities of long-term debt	15,384	15,374
Accounts payable	324,806	321,419
Accrued expenses	130,786	131,457
Total current liabilities	470,976	507,850
Long-term debt, net of current maturities	1,283,992	1,291,725
Deferred income taxes	374,665	341,946
Deferred compensation	15,584	15,928
Insurance accruals, net of current portion	20,155	19,748
Other long-term liabilities	23,206	21,589
Total liabilities	2,188,578	2,198,786
Shareholders’ equity:
Preferred stock, no par value	0	0
Common stock, no par value	9,702	0
Retained earnings	1,347,377	1,271,141
Total shareholders’ equity	1,357,079	1,271,141
Total liabilities and shareholders' equity	$ 3,545,657	$ 3,469,927