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Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Sep. 30, 2012
Current assets:      
Cash and cash equivalents $ 66,174 $ 49,042 $ 74,242
Receivables, net 787,311 678,123 743,274
Inventories 314,571 317,415 315,767
Deferred income taxes 26,284 22,846 25,345
Commodity derivative instruments 4,373 18,304 19,193
Prepayments and other current assets 56,257 42,351 71,579
Total current assets 1,254,970 1,128,081 1,249,400
Investments 108,664 103,243 102,139
Property, plant and equipment 8,651,334 8,107,751 8,129,872
Less accumulated depreciation, depletion and amortization 3,796,052 3,608,912 3,546,927
Net property, plant and equipment 4,855,282 4,498,839 4,582,945
Deferred charges and other assets:      
Goodwill 636,039 [1] 636,039 [1] 636,039 [1]
Other intangible assets, net 14,092 17,129 18,015
Other 298,061 299,160 314,133
Total deferred charges and other assets 948,192 952,328 968,187
Total assets 7,167,108 6,682,491 6,902,671
Current liabilities:      
Short-term borrowings 7,000 28,200 11,000
Long-term debt due within one year 44,024 134,108 240,564
Accounts payable 437,740 388,015 402,241
Taxes payable 80,392 46,475 54,903
Dividends payable 32,745 171 31,800
Accrued compensation 62,746 48,448 48,792
Commodity derivative instruments 9,740 0 2,072
Other accrued liabilities 171,420 204,698 233,773
Total current liabilities 845,807 850,115 1,025,145
Long-term debt 1,967,872 1,610,867 1,502,413
Deferred credits and other liabilities:      
Deferred income taxes 808,011 755,102 797,249
Other liabilities 794,928 818,159 834,934
Total deferred credits and other liabilities 1,602,939 1,573,261 1,632,183
Equity:      
Preferred stocks 15,000 15,000 15,000
Common stockholders' equity:      
Authorized - 500,000,000 shares, $1.00 par value. Shares issued - 189,369,450 at September 30, 2013 and 2012 and December 31, 2012 189,369 189,369 189,369
Other paid-in capital 1,041,787 1,039,080 1,038,066
Retained earnings 1,546,000 1,457,146 1,550,569
Accumulated other comprehensive loss (56,937) (48,721) (46,448)
Treasury stock at cost - 538,921 shares (3,626) (3,626) (3,626)
Total common stockholders' equity 2,716,593 2,633,248 2,727,930
Total stockholders' equity 2,731,593 2,648,248 2,742,930
Noncontrolling interest 18,897 0 0
Total equity 2,750,490 2,648,248 2,742,930
Total liabilities and equity $ 7,167,108 $ 6,682,491 $ 6,902,671
[1] Balance is presented net of accumulated impairment of $12.3 million at the pipeline and energy services segment, which occurred in prior periods.