CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Operating activities:
Net income	$ 88,044	$ 90,710
Income from discontinued operations, net of tax	280	0
Income from continuing operations	87,764	90,710
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	167,964	160,225
Earnings, net of distributions, from equity method investments	512	(1,899)
Deferred income taxes	60,960	35,758
Changes in current assets and liabilities, net of acquisitions:
Receivables	17,259	27,149
Inventories	(29,154)	(12,442)
Other current assets	(19,600)	(32,471)
Accounts payable	(3,197)	(13,164)
Other current liabilities	(9,753)	(45,613)
Other noncurrent changes	(17,969)	(4,882)
Net cash provided by continuing operations	254,786	203,371
Net cash used in discontinued operations	(491)	0
Net cash provided by operating activities	254,295	203,371
Investing activities:
Capital expenditures	(224,934)	(237,535)
Acquisitions, net of cash acquired	(157)	(106,548)
Net proceeds from sale or disposition of property	16,145	11,972
Investments	(9,955)	1,228
Net cash used in continuing operations	(218,901)	(330,883)
Net cash provided by discontinued operations	0	0
Net cash used in investing activities	(218,901)	(330,883)
Financing activities:
Repayment of short-term borrowings	(20,000)	(6,600)
Issuance of long-term debt	6,000	82,992
Repayment of long-term debt	(81,202)	(814)
Proceeds from issuance of common stock	5,744	1,739
Dividends paid	(61,623)	(59,545)
Excess tax benefit on stock-based compensation	1,248	548
Net cash provided by (used in) continuing operations	(149,833)	18,320
Net cash provided by discontinued operations	0	0
Net cash provided by (used in) financing activities	(149,833)	18,320
Effect of exchange rate changes on cash and cash equivalents	133	(130)
Decrease in cash and cash equivalents	(114,306)	(109,322)
Cash and cash equivalents -- beginning of year	222,074	175,114
Cash and cash equivalents -- end of period	$ 107,768	$ 65,792

The cash outflow associated with acquisitions, net of the cash acquired.

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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Reductions in the entity's income taxes that arise when compensation cost (from non-qualified share-based compensation) recognized on the entity's tax return exceeds compensation cost from equity-based compensation recognized in financial statements. This element represents the cash inflow reported in the enterprise's financing activities.

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