CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current Assets:
Cash and Cash Equivalents	$ 365,839	$ 259,193
Restricted Cash	2,027	2,027
Accounts Receivable, Net of Allowance for Doubtful Accounts of $607 and $788 as of September 30, 2013 and December 31, 2012, Respectively	187,812	167,936
Prepaids	30,561	16,135
Current Deferred Tax Asset	0	21,125
Other	12,584	12,191
Total Current Assets	598,823	478,607
Property and Equipment, Net	1,772,148	1,462,755
Equity Investment	0	38,191
Other Assets, Net	32,464	37,077
Total Assets	2,403,435	2,016,630
Current Liabilities:
Short-term Debt and Current Portion of Long-term Debt	0	67,054
Accounts Payable	83,826	58,615
Accrued Liabilities	75,931	82,781
Interest Payable	43,662	17,367
Insurance Notes Payable	19,175	9,123
Other Current Liabilities	29,179	26,483
Total Current Liabilities	251,773	261,423
Long-term Debt, Net of Current Portion	1,205,800	798,013
Deferred Income Taxes	4,201	56,821
Other Liabilities	19,289	17,611
Commitments and Contingencies
Stockholders’ Equity:
Common Stock, $0.01 Par Value; 300,000 Shares Authorized; 162,127 and 160,708 Shares Issued, Respectively; 159,747 and 158,628 Shares Outstanding, Respectively	1,621	1,607
Capital in Excess of Par Value	2,168,309	2,159,744
Treasury Stock, at Cost, 2,380 Shares and 2,080 Shares, Respectively	(55,143)	(53,100)
Retained Deficit	(1,192,415)	(1,225,489)
Total Stockholders' Equity	922,372	882,762
Total Liabilities and Stockholders' Equity	$ 2,403,435	$ 2,016,630