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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Current assets    
Cash and cash equivalents $ 374,377 $ 524,496
Accounts receivable, net 1,091,982 829,796
Materials and supplies 144,824 143,178
NGLs and natural gas in storage 454,760 227,810
Commodity imbalances 14,873 11,959
Other current assets 154,807 132,536
Total current assets 2,235,623 1,869,775
Property, plant and equipment    
Property, plant and equipment 23,393,034 23,072,935
Accumulated depreciation and amortization 4,211,515 3,918,007
Net property, plant and equipment 19,181,519 19,154,928
Investments and other assets    
Investments in unconsolidated affiliates 800,351 805,032
Goodwill and net intangible assets 768,509 773,723
Other assets 451,246 475,296
Total investments and other assets 2,020,106 2,054,051
Total assets 23,437,248 23,078,754
Current liabilities    
Current maturities of long-term debt (Note D) 536,107 7,650
Accounts payable 1,052,561 719,302
Commodity imbalances 244,582 186,372
Accrued taxes 94,048 89,428
Accrued interest 244,669 245,153
Operating lease liability, current 14,570 13,610
Other current liabilities 208,064 83,032
Total current liabilities 2,394,601 1,344,547
Long-term debt, excluding current maturities (Note D) 13,637,581 14,228,421
Deferred credits and other liabilities    
Deferred income taxes 881,711 669,697
Operating lease liability, noncurrent 81,707 87,610
Other deferred credits 531,262 706,081
Total deferred credits and other liabilities 1,494,680 1,463,388
Commitments and contingencies (Note J)
Equity (Note E)    
Preferred stock, $0.01 par value: authorized and issued 20,000 shares at June 30, 2021, and December 31, 2020 0 0
Common Stock, $0.01 par value: authorized 1,200,000,000 shares; issued 474,916,234 shares and outstanding 445,817,509 shares at June 30, 2021; issued 474,916,234 shares and outstanding 444,872,383 shares at December 31, 2020 4,749 4,749
Paid-in capital 7,247,334 7,353,396
Accumulated other comprehensive loss (Note F) (601,443) (551,449)
Retained earnings 0 0
Treasury stock, at cost: 29,098,725 shares at June 30, 2021, and 30,043,851 shares at December 31, 2020 (740,254) (764,298)
Total equity 5,910,386 6,042,398
Total liabilities and equity $ 23,437,248 $ 23,078,754