CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues and other income
Revenue from sales to customers	$ 1,751,709	$ 2,817,111	$ 1,806,473
(Loss) gain on crude contracts	202,661	(856)	(41,975)
Gain on sale of assets and other income	12,971	12,798	26,903
Total revenues and other income	1,967,341	2,829,053	1,791,401
Costs and expenses
Lease operating expenses	600,076	605,180	353,832
Severance and ad valorem taxes	28,526	47,959	52,072
Transportation, gathering and processing	172,399	176,315	75,043
Exploration expenses, including undeveloped lease amortization	86,479	95,105	101,812
Selling and general expenses	140,243	232,736	205,192
Restructuring expenses	49,994	0	0
Depreciation, depletion and amortization	987,239	1,147,842	775,614	[1]
Accretion of asset retirement obligations	42,136	40,506	27,119	[1]
Impairment of assets	1,206,284	0	20,000	[1]
Other (benefit) expense	16,274	38,117	(34,870)
Total costs and expenses	3,329,650	2,383,760	1,575,814
Operating (loss) income from continuing operations	(1,362,309)	445,293	215,587
Other income (loss)
Interest and other income (loss)	(17,303)	(22,520)	7,774
Interest expense, net	(169,423)	(219,275)	(180,359)
Total other loss	(186,726)	(241,795)	(172,585)
(Loss) income from continuing operations before income taxes	(1,549,035)	203,498	43,002
Income tax (benefit) expense	(293,741)	14,683	(126,136)
(Loss) income from continuing operations	(1,255,294)	188,815	169,138
(Loss) income from discontinued operations, net of income taxes	(7,151)	1,064,487	250,348	[1]
Net income (loss) including noncontrolling interest	(1,262,445)	1,253,302	419,486	[1]
Less: Net (loss) income attributable to noncontrolling interest	(113,668)	103,570	8,392
NET INCOME (LOSS) ATTRIBUTABLE TO MURPHY	$ (1,148,777)	$ 1,149,732	$ 411,094
(LOSS) INCOME PER COMMON SHARE – BASIC
Continuing operations (in USD per share)	$ (7.43)	$ 0.52	$ 0.92
Discontinued operations (in USD per share)	(0.05)	6.49	1.46
Net Income (loss) (in USD per share)	(7.48)	7.01	2.38
(LOSS) INCOME PER COMMON SHARE – DILUTED
Continuing operations (in USD per share)	(7.43)	0.52	0.92
Discontinued operations (in USD per share)	(0.05)	6.46	1.44
Net income (loss) (in USD per share)	(7.48)	6.98	2.36
Cash dividends per Common share (in USD per share)	$ 0.625	$ 1.00	$ 1.00
Average Common shares outstanding (thousands)
Basic (in shares)	153,507,109	163,992,427	172,974,491
Diluted (in shares)	153,507,109	164,812,428	174,208,765

[1] Reclassified to conform with current presentation