CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013
OPERATING ACTIVITIES
Net income	$ 530,373		$ 1,048,052	[1]
Adjustments to reconcile net income to net cash provided by operating activities:
Loss (income) from discontinued operations	52,639		(340,402)	[1]
Depreciation, depletion and amortization	1,354,393		1,139,193	[1]
Impairment of assets			21,587	[1]
Amortization of deferred major repair costs	6,390		6,387	[1]
Dry hole costs	203,607		160,540	[1]
Amortization of undeveloped leases	55,745		53,287	[1]
Accretion of asset retirement obligations	36,992		36,396	[1]
Deferred and noncurrent income tax charges	64,557		141,402	[1]
Pretax loss from disposition of assets	5,130		262	[1]
Net (increase) decrease in noncash operating working capital	6,940		(24,545)	[1]
Other operating activities, net	17,531		(24,206)	[1]
Net cash provided by continuing operations	2,334,297		2,217,953	[1]
Net cash provided by discontinued operations	19,720		460,563	[1]
Net cash provided by operating activities	2,354,017		2,678,516	[1]
INVESTING ACTIVITIES
Property additions and dry hole costs	(2,806,705)	[2]	(2,695,507)	[1],[2]
Proceeds from sale of assets	3,138	[2]	1,371	[1],[2]
Purchase of investment securities	(672,689)	[2]	(670,615)	[1],[2]
Proceeds from maturity of investment securities	587,341	[3]	496,425	[1],[3]
Investing activities of discontinued operations
Sales proceeds			282,202	[1]
Property additions and other	(12,101)		(158,363)	[1]
Other - net	(19,233)		(1,383)	[1]
Net cash required by investing activities	(2,920,249)		(2,745,870)	[1]
FINANCING ACTIVITIES
Borrowings of long-term debt	1,050,000	[2]
Purchase of treasury stock	(375,000)		(250,000)	[1]
Proceeds from exercise of stock options and employee stock purchase plans			2,778	[1]
Withholding tax on stock-based incentive awards	(6,786)		(12,713)	[1]
Cash dividends paid	(174,248)		(177,805)	[1]
Separation of retail business:
Cash distributed to Company by Murphy USA			650,000	[1]
Cash held and retained by Murphy USA upon separation			(55,506)	[1]
Other - net	(1,384)		(3,034)	[1]
Net cash provided by financing activities	492,582		153,720	[1]
Effect of exchange rate changes on cash and cash equivalents	(2,484)		255	[1]
Net increase (decrease) in cash and cash equivalents	(76,134)		86,621	[1]
Cash and cash equivalents at January 1	750,155		947,316	[1]
Cash and cash equivalents at September 30	$ 674,021		$ 1,033,937	[1]

[1] Reclassified to conform to current presentation - See Note D.

[2] Excludes non-cash asset and long-term obligation of $356,170 in 2013 associated with commencement of a capital lease of production equipment at the Kakap field offshore Malaysia.

[3] Investments are Canadian government securities with maturities greater than 90 days at the date of acquisition.