DEBT (Tables)

6 Months Ended

Jun. 30, 2020

DEBT [Abstract]

Debt

	Effective	June 30	December 31	June 30
in thousands	Interest Rates	2020	2019	2019
Short-term Debt
Delayed draw term loan expires 2021		$                  0	$                0	$                0
Bank line of credit expires 2021 1		0	0	137,000
Total short-term debt		$                  0	$                0	$     137,000
Long-term Debt
Bank line of credit expires 2021 1		$                  0	$                0	$                0
Floating-rate notes due 2020		0	250,000	250,000
Floating-rate notes due 2021	1.21%	500,000	500,000	500,000
8.85% notes due 2021	8.88%	6,000	6,000	6,000
4.50% notes due 2025	4.65%	400,000	400,000	400,000
3.90% notes due 2027	4.00%	400,000	400,000	400,000
3.50% notes due 2030	3.91%	750,000	0	0
7.15% notes due 2037	8.05%	129,239	129,239	129,239
4.50% notes due 2047	4.59%	700,000	700,000	700,000
4.70% notes due 2048	5.42%	460,949	460,949	460,949
Other notes	1.10%	9,153	185	197
Total long-term debt - face value		$    3,355,341	$  2,846,373	$  2,846,385
Unamortized discounts and debt issuance costs		(69,669)	(62,033)	(64,535)
Total long-term debt - book value		$    3,285,672	$  2,784,340	$  2,781,850
Less current maturities		500,026	25	24
Total long-term debt - reported value		$    2,785,646	$  2,784,315	$  2,781,826
Estimated fair value of long-term debt		$    3,225,468	$  3,073,693	$  2,898,283

¹ Borrowings on the bank line of credit are classified as short-term if we intend to repay within twelve months and as long-term if we have the intent and ability to extend payment beyond twelve months.

Standby Letters of Credit

in thousands
Standby Letters of Credit
Risk management insurance	$       47,031
Reclamation/restoration requirements	7,098
Total	$       54,129