Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jul. 31, 2017	Apr. 30, 2017
Current assets:
Cash and cash equivalents	$ 159,101	$ 76,717
Receivables	44,544	43,244
Inventories	225,973	201,644
Prepaid expenses	8,251	9,179
Income tax receivable	1,430	19,901
Total current assets	439,299	350,685
Other assets, net of amortization	23,632	23,453
Goodwill	132,806	132,806
Property and equipment, net of accumulated depreciation of $1,537,648 at July 31, 2017 and $1,496,472 at April 30, 2016	2,561,744	2,513,158
Total assets	3,157,481	3,020,102
Current liabilities:
Notes payable to bank	0	900
Current maturities of long-term debt	15,429	15,421
Accounts payable	281,645	293,903
Accrued expenses	144,789	136,322
Total current liabilities	441,863	446,546
Long-term debt, net of current maturities	1,057,238	907,356
Deferred income taxes	455,688	440,124
Deferred compensation	15,959	15,784
Other long-term liabilities	20,221	19,672
Total liabilities	1,990,969	1,829,482
Shareholders’ equity:
Preferred stock, no par value	0	0
Common stock, no par value	0	40,074
Retained earnings	1,166,512	1,150,546
Total shareholders’ equity	1,166,512	1,190,620
Total liabilities and shareholders' equity	$ 3,157,481	$ 3,020,102