Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Current assets:
Cash and cash equivalents	$ 40,048	$ 46,107	$ 85,117
Receivables, net	661,771	630,243	637,166
Inventories	249,870	238,273	265,849
Prepayments and other current assets	63,953	48,461	50,309
Current assets held for sale	328	14,391	37,625
Total current assets	1,015,970	977,475	1,076,066
Investments	131,726	125,866	124,531
Property, plant and equipment	6,591,382	6,510,229	6,526,563
Less accumulated depreciation, depletion and amortization	2,638,098	2,578,902	2,551,941
Net property, plant and equipment	3,953,284	3,931,327	3,974,622
Deferred charges and other assets:
Goodwill	631,791	631,791	641,527	[1]
Other intangible assets, net	4,785	5,925	7,160
Other	416,759	415,419	360,520
Noncurrent assets held for sale	76,183	196,664	167,100
Total deferred charges and other assets	1,129,518	1,249,799	1,176,307
Total assets	6,230,498	6,284,467	6,351,526
Current liabilities:
Long-term debt due within one year	83,499	43,598	58,598
Accounts payable	279,211	279,962	275,791
Taxes payable	55,037	48,164	45,749
Dividends payable	37,596	37,767	36,791
Accrued compensation	52,951	65,867	56,390
Other accrued liabilities	181,030	184,377	196,701
Current liabilities held for sale	4,481	9,924	28,237
Total current liabilities	693,805	669,659	698,257
Long-term debt	1,677,977	1,746,561	1,928,709
Deferred credits and other liabilities:
Deferred income taxes	668,239	668,226	666,601
Other	887,525	883,777	820,349
Total deferred credits and other liabilities	1,555,764	1,552,003	1,486,950
Commitments and contingencies
Stockholders' equity:
Preferred stocks	0	15,000	15,000
Common stockholders' equity:
Authorized - 500,000,000 shares, $1.00 par value Shares issued - 195,843,297 at June 30, 2017 and 2016 and December 31, 2016	195,843	195,843	195,843
Other paid-in capital	1,231,892	1,232,478	1,230,342
Retained earnings	914,632	912,282	838,257
Accumulated other comprehensive loss	(35,789)	(35,733)	(38,206)
Treasury stock at cost - 538,921 shares	(3,626)	(3,626)	(3,626)
Total common stockholders' equity	2,302,952	2,301,244	2,222,610
Total stockholders' equity	2,302,952	2,316,244	2,237,610
Total liabilities and stockholders' equity	$ 6,230,498	$ 6,284,467	$ 6,351,526

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