Supplemental Quarterly Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Interim Reporting [Line Items]
Revenue from contracts with customers	$ 669,600	$ 753,200	$ 801,000	$ 794,800	$ 842,200	$ 953,800	$ 812,900	$ 840,000	$ 3,018,598	$ 3,448,854	$ 4,220,140
Income from continuing operations before income taxes	78,600	153,800	189,600	145,600	169,500	356,300	127,300	267,900	567,569	921,069	1,450,261
Income from continuing operations	65,200	151,700	156,900	115,500	140,500	278,200	92,500	214,000	489,297	725,148	1,140,797
Net income including noncontrolling interest	64,400	151,100	156,300	114,700	139,700	277,800	91,900	214,300	486,485	723,681	1,138,719
Net income attributable to Murphy	$ 50,300	$ 139,100	$ 127,700	$ 90,000	$ 116,400	$ 255,300	$ 98,300	$ 191,600	$ 407,171	$ 661,559	$ 965,047
Income from continuing operations per common share
Basic (in USD per share)	$ 0.35	$ 0.93	$ 0.84	$ 0.60	$ 0.76	$ 1.64	$ 0.63	$ 1.23	$ 2.73	$ 4.27	$ 6.23
Diluted (in USD per share)	0.34	0.93	0.83	0.60	0.75	1.63	0.62	1.22	2.72	4.23	6.14
Net income per common share
Basic (in USD per share)	0.35	0.93	0.84	0.59	0.76	1.64	0.63	1.23	2.71	4.26	6.22
Diluted (in USD per share)	0.34	0.93	0.83	0.59	0.75	1.63	0.62	1.22	2.70	4.22	6.13
Cash dividend per Common share (in USD per share)	$ 0.300	$ 0.300	$ 0.300	$ 0.300	$ 0.275	$ 0.275	$ 0.275	$ 0.275	$ 1.200	$ 1.100	$ 0.825
Minimum
Interim Reporting [Line Items]
Income from continuing operations before income taxes									$ 567,600	$ 921,000
Maximum
Interim Reporting [Line Items]
Income from continuing operations									489,300	$ 725,200
Net income attributable to Murphy									$ 407,100