CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	[1]	Dec. 31, 2017
Revenues and other income
Revenue from sales to customers	$ 2,817,111,000	$ 1,806,473,000		$ 1,300,464,000	[1]
(Loss) gain on crude contracts	(856,000)	(41,975,000)		9,566,000	[1]
Gain on sale of assets and other income	12,798,000	26,903,000		133,958,000	[1]
Total revenues and other income	2,829,053,000	1,791,401,000		1,443,988,000	[1]
Costs and expenses
Lease operating expenses	605,180,000	353,832,000		299,420,000	[1]
Severance and ad valorem taxes	47,959,000	52,072,000		43,618,000	[1]
Transportation, gathering and processing	176,315,000	75,043,000		0	[1]
Exploration expenses, including undeveloped lease amortization	95,105,000	101,812,000		120,389,000	[1]
Selling and general expenses	232,736,000	205,192,000		207,391,000	[1]
Depreciation, depletion and amortization	1,147,842,000	775,614,000	[2]	751,878,000	[1],[2]
Accretion of asset retirement obligations	40,506,000	27,119,000	[2]	25,282,000	[1],[2]
Impairment of assets	0	20,000,000	[2]	0	[1],[2]
Other expense (benefit)	38,117,000	(34,870,000)		22,329,000	[1]
Total costs and expenses	2,383,760,000	1,575,814,000		1,470,307,000	[1]
Operating income (loss) from continuing operations	445,293,000	215,587,000		(26,319,000)	[1]
Other income (loss)
Interest and other income (loss)	(22,520,000)	7,774,000		(78,302,000)	[1]
Interest expense, net	(219,275,000)	(180,359,000)		(178,263,000)	[1]
Total other loss	(241,795,000)	(172,585,000)		(256,565,000)	[1]
Income (loss) from continuing operations before income taxes	203,498,000	43,002,000		(282,884,000)	[1]
Income tax expense (benefit)	14,683,000	(126,136,000)		270,131,000	[1]
Income (loss) from continuing operations	188,815,000	169,138,000		(553,015,000)	[1]
Income from discontinued operations, net of income taxes	1,064,487,000	250,348,000	[2]	241,226,000	[1],[2]
Net income (loss) including noncontrolling interest	1,253,302,000	419,486,000	[2]	(311,789,000)	[1],[2]
Less: Net income attributable to noncontrolling interest	103,570,000	8,392,000		0	[1]
NET INCOME (LOSS) ATTRIBUTABLE TO MURPHY	$ 1,149,732,000	$ 411,094,000		$ (311,789,000)	[1]
INCOME (LOSS) PER COMMON SHARE – BASIC
Continuing operations (in USD per share)	$ 0.52	$ 0.92		$ (3.21)	[1]
Discontinued operations (in USD per share)	6.49	1.46		1.40	[1]
Net Income (in USD per share)	7.01	2.38		(1.81)	[1]
INCOME (LOSS) PER COMMON SHARE – DILUTED
Continuing operations (in USD per share)	0.52	0.92		(3.21)	[1]
Discontinued operations (in USD per share)	6.46	1.44		1.40	[1]
Net income (loss) (in USD per share)	6.98	2.36		(1.81)	[1]
Cash dividends per Common share (in USD per share)	$ 1.00	$ 1.00		$ 1.00	[1]
Average Common shares outstanding (thousands)
Basic (in shares)	163,992,427	172,974,491		172,524,061	[1]
Diluted (in shares)	164,812,428	174,208,765		172,524,061	[1]
Previous Accounting Guidance
Costs and expenses
Transportation, gathering and processing				$ 58,900,000

[1] ¹ Reclassified to conform with current presentation (see Notes C and E). 2017 revenue is presented net of $58.9 million of transportation, gathering and processing costs as historically shown prior to the adoption of ASC 606 on January 1, 2018. See Notes to Consolidated Financial Statements, page 58.

[2] Reclassified to conform with current presentation (see Note E)