Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Current assets:
Cash and cash equivalents	$ 50,735	$ 46,107	$ 90,573
Receivables, net	554,185	630,243	526,619
Inventories	250,609	238,273	259,756
Prepayments and other current assets	79,254	48,461	52,380
Current assets held for sale	7,290	14,391	99,544
Total current assets	942,073	977,475	1,028,872
Investments	129,009	125,866	121,955
Property, plant and equipment	6,544,077	6,510,229	6,448,514
Less accumulated depreciation, depletion and amortization	2,609,303	2,578,902	2,521,108
Net property, plant and equipment	3,934,774	3,931,327	3,927,406
Deferred charges and other assets:
Goodwill	631,791	631,791	641,527	[1]
Other intangible assets, net	5,347	5,925	7,803
Other	409,745	415,419	351,814
Noncurrent assets held for sale	95,719	196,664	485,885
Total deferred charges and other assets	1,142,602	1,249,799	1,487,029
Total assets	6,148,458	6,284,467	6,565,262
Current liabilities:
Long-term debt due within one year	43,499	43,598	98,540
Accounts payable	239,013	279,962	233,021
Taxes payable	74,638	48,164	56,298
Dividends payable	37,767	37,767	36,791
Accrued compensation	32,350	65,867	40,420
Other accrued liabilities	188,373	184,377	182,804
Current liabilities held for sale	2,394	9,924	117,777
Total current liabilities	618,034	669,659	765,651
Long-term debt	1,659,507	1,746,561	1,759,514
Deferred credits and other liabilities:
Deferred income taxes	666,905	668,226	670,299
Other	890,107	883,777	811,789
Noncurrent liabilities held for sale	0	0	62,625
Total deferred credits and other liabilities	1,557,012	1,552,003	1,544,713
Commitments and contingencies
Equity:
Preferred stocks	15,000	15,000	15,000
Common stockholders' equity:
Authorized - 500,000,000 shares, $1.00 par value Shares issued - 195,843,297 at March 31, 2017 and 2016 and December 31, 2016	195,843	195,843	195,843
Other paid-in capital	1,231,171	1,232,478	1,229,431
Retained earnings	911,702	912,282	984,315
Accumulated other comprehensive loss	(36,185)	(35,733)	(38,582)
Treasury stock at cost - 538,921 shares	(3,626)	(3,626)	(3,626)
Total common stockholders' equity	2,298,905	2,301,244	2,367,381
Total stockholders' equity	2,313,905	2,316,244	2,382,381
Noncontrolling interest	0	0	113,003
Total equity	2,313,905	2,316,244	2,495,384
Total liabilities and equity	$ 6,148,458	$ 6,284,467	$ 6,565,262

[1] Balance is presented net of accumulated impairment of $12.3 million at the pipeline and midstream segment, which occurred in prior periods.