PROPERTY, PLANT & EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2014

PROPERTY, PLANT & EQUIPMENT [Abstract]

Property Plant and Equipment

in thousands	2014	2013
Property, Plant & Equipment
Land and land improvements 1	$    2,273,874	$  2,295,087
Buildings	126,833	149,982
Machinery and equipment	3,952,423	4,248,100
Leaseholds	13,451	11,692
Deferred asset retirement costs	163,644	151,973
Construction in progress	78,617	76,768
Total, gross	$    6,608,842	$  6,933,602
Less allowances for depreciation, depletion
and amortization	3,537,212	3,621,585
Total, net	$    3,071,630	$  3,312,017

Capitalized interest costs and total interest costs incurred

in thousands	2014	2013	2012
Capitalized interest cost	$          2,092	$        1,089	$        2,716
Total interest cost incurred before recognition
of the capitalized amount	245,459	203,677	215,783