Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current Assets
Cash and Cash Equivalents	$ 1,318,209	$ 876,435
Accounts Receivable, Net	1,658,853	1,656,618
Inventories	563,268	683,187
Assets from Price Risk Management Activities	8,260	166,135
Income Taxes Receivable	4,797	29,163
Total Net Current Deferred Income Tax Assets	244,606	0
Other	274,022	178,346
Total	4,072,015	3,589,884
Property, Plant and Equipment
Oil and Gas Properties (Successful Efforts Method)	42,821,803	38,126,298
Other Property, Plant and Equipment	2,967,085	2,740,619
Total Property, Plant and Equipment	45,788,888	40,866,917
Less: Accumulated Depreciation, Depletion and Amortization	(19,640,052)	(17,529,236)
Total Property, Plant and Equipment, Net	26,148,836	23,337,681
Other Assets	353,387	409,013
Total Assets	30,574,238	27,336,578
Current Liabilities
Accounts Payable	2,254,418	2,078,948
Accrued Taxes Payable	159,365	162,083
Dividends Payable	50,795	45,802
Liabilities from Price Risk Management Activities	127,542	7,617
Deferred Income Taxes	0	22,838
Current Portion of Long-Term Debt	6,579	406,579
Other	263,017	200,191
Total	2,861,716	2,924,058
Long-Term Debt	5,906,642	5,905,602
Other Liabilities	865,067	894,758
Deferred Income Taxes	5,522,354	4,327,396
Commitments and Contingencies (Note 7)
Stockholders' Equity
Common Stock, $0.01 Par, 640,000,000 Shares Authorized and 273,189,220 Shares and 271,958,495 Shares Issued at December 31, 2013 and 2012, respectively	202,732	202,720
Additional Paid in Capital	2,646,879	2,500,340
Accumulated Other Comprehensive Income	415,834	439,895
Retained Earnings	12,168,277	10,175,631
Common Stock Held in Treasury, 103,415 Shares and 326,264 Shares at December 31, 2013 and 2012, respectively	(15,263)	(33,822)
Total Stockholders' Equity	15,418,459	13,284,764
Total Liabilities and Stockholders' Equity	$ 30,574,238	$ 27,336,578