CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents		$ 286,281	$ 359,923	[1]
Accounts receivable, less allowance for doubtful accounts of $1,605 in 2019 and 2018		349,768	231,686	[1]
Inventories		77,278	80,024	[1]
Prepaid expenses		45,349	34,316	[1]
Assets held for sale		1,879,568	173,865	[1]
Total current assets		2,638,244	879,814	[1]
Property, plant and equipment, at cost less accumulated depreciation, depletion and amortization of $8,359,120 in 2019 and $8,070,487 in 2018		8,559,143	8,432,133	[1]
Operating lease assets		618,123
Deferred income taxes		124,679	146,197	[1]
Deferred charges and other assets		42,928	49,435	[1]
Non-current assets held for sale	[1]		1,545,008
Total assets		11,983,117	11,052,587	[1]
Current liabilities
Current maturities of long-term debt		679	668	[1]
Accounts payable		475,559	348,026	[1]
Income taxes payable		15,450	15,309	[1]
Other taxes payable		14,283	17,649	[1]
Operating lease liabilities		155,534
Other accrued liabilities		157,031	177,948	[1]
Liabilities associated with assets held for sale		819,694	286,458	[1]
Total current liabilities		1,638,230	846,058	[1]
Long-term debt, including capital lease obligation		3,110,098	3,109,318	[1]
Asset retirement obligations		783,495	752,519	[1]
Deferred credits and other liabilities		471,099	624,436	[1]
Non-current operating lease liabilities		468,427
Deferred income taxes		185,091	129,894	[1]
Non-current liabilities associated with assets held for sale	[1]		392,720
Equity
Cumulative Preferred Stock, par $100, authorized 400,000 shares, none issued				[1]
Common Stock, par $1.00, authorized 450,000,000 shares, issued 195,083,364 shares in 2019 and 195,076,924 in 2018		195,083	195,077	[1]
Capital in excess of par value		924,904	979,642	[1]
Retained earnings		5,627,081	5,513,529	[1]
Accumulated other comprehensive loss		(580,999)	(609,787)	[1]
Treasury stock		(1,217,293)	(1,249,162)	[1]
Murphy Shareholders' Equity		4,948,776	4,829,299	[1]
Noncontrolling interest		377,901	368,343	[1]
Total equity		5,326,677	5,197,642	[1]
Total liabilities and stockholders' equity		$ 11,983,117	$ 11,052,587	[1]

[1] Reclassified to conform to current presentation (see Note A).