Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current Assets
Cash and Cash Equivalents	$ 1,546,566	$ 1,599,895
Accounts Receivable, Net	1,187,112	1,216,320
Inventories	314,194	350,017
Assets from Price Risk Management Activities	1,142	0
Income Taxes Receivable	80,503	12,305
Other	264,559	206,679
Total	3,394,076	3,385,216
Property, Plant and Equipment
Oil and Gas Properties (Successful Efforts Method)	50,195,608	49,592,091
Other Property, Plant and Equipment	3,977,721	4,008,564
Total Property, Plant and Equipment	54,173,329	53,600,655
Less: Accumulated Depreciation, Depletion and Amortization	(28,566,869)	(27,893,577)
Total Property, Plant and Equipment, Net	25,606,460	25,707,078
Deferred Income Taxes	16,232	16,140
Other Assets	195,206	190,767
Total Assets	29,211,974	29,299,201
Current Liabilities
Accounts Payable	1,556,875	1,511,826
Accrued Taxes Payable	143,710	118,411
Dividends Payable	96,155	96,120
Liabilities from Price Risk Management Activities	7,636	61,817
Short-Term Borrowings and Current Portion of Long-Term Debt	6,579	6,579
Other	221,052	232,538
Total	2,032,007	2,027,291
Long-Term Debt	6,980,008	6,979,779
Other Liabilities	1,248,102	1,282,142
Deferred Income Taxes	5,023,626	5,028,408
Commitments and Contingencies (Note 8)
Stockholders' Equity
Common Stock, $0.01 Par, 640,000,000 Shares Authorized and 577,636,588 Shares Issued at March 31, 2017 and 576,950,272 Shares Issued at December 31, 2016	205,776	205,770
Additional Paid in Capital	5,447,291	5,420,385
Accumulated Other Comprehensive Loss	(18,664)	(19,010)
Retained Earnings	8,329,951	8,398,118
Common Stock Held in Treasury, 378,442 Shares at March 31, 2017 and 250,155 Shares at December 31, 2016	(36,123)	(23,682)
Total Stockholders' Equity	13,928,231	13,981,581
Total Liabilities and Stockholders' Equity	$ 29,211,974	$ 29,299,201