Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current Assets
Cash and Cash Equivalents	$ 816,094	$ 834,228
Accounts Receivable, Net	1,702,100	1,597,494
Inventories	584,729	483,865
Assets from Price Risk Management Activities	761	7,699
Income Taxes Receivable	262,789	113,357
Other	218,624	242,465
Total	3,585,097	3,279,108
Property, Plant and Equipment
Oil and Gas Properties (Successful Efforts Method)	53,854,438	52,555,741
Other Property, Plant and Equipment	4,082,781	3,960,759
Total Property, Plant and Equipment	57,937,219	56,516,500
Less: Accumulated Depreciation, Depletion and Amortization	(31,561,571)	(30,851,463)
Total Property, Plant and Equipment, Net	26,375,648	25,665,037
Deferred Income Taxes	18,182	17,506
Other Assets	761,590	871,427
Total Assets	30,740,517	29,833,078
Current Liabilities
Accounts Payable	1,915,651	1,847,131
Accrued Taxes Payable	179,646	148,874
Dividends Payable	106,521	96,410
Liabilities from Price Risk Management Activities	84,128	50,429
Current Portion of Long-Term Debt	363,155	356,235
Other	187,657	226,463
Total	2,836,758	2,725,542
Long-Term Debt	6,071,604	6,030,836
Other Liabilities	1,301,938	1,275,213
Deferred Income Taxes	3,689,578	3,518,214
Commitments and Contingencies (Note 8)
Stockholders' Equity
Common Stock, $0.01 Par, 1,280,000,000 Shares Authorized and 579,272,616 Shares Issued at March 31, 2018 and 578,827,768 Shares Issued at December 31, 2017	205,793	205,788
Additional Paid in Capital	5,569,194	5,536,547
Accumulated Other Comprehensive Loss	(14,289)	(19,297)
Retained Earnings	11,125,051	10,593,533
Common Stock Held in Treasury, 459,990 Shares at March 31, 2018 and 350,961 Shares at December 31, 2017	(45,110)	(33,298)
Total Stockholders' Equity	16,840,639	16,283,273
Total Liabilities and Stockholders' Equity	$ 30,740,517	$ 29,833,078