Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
ASSETS
Cash and cash equivalents	$ 5,471	$ 14,701
Trade accounts receivable	113,233	105,689
Other accounts receivable	12,636	25,761
Inventory	119,451	134,378
Energy commodity derivatives contracts, net	4,250	0
Energy commodity derivatives deposits	4,492	49,899
Other current assets	66,123	39,966
Total current assets	325,656	370,394
Property, plant and equipment	7,048,502	6,783,737
Less: Accumulated depreciation	1,592,035	1,507,996
Net property, plant and equipment	5,456,467	5,275,741
Investments in non-controlled entities	976,456	931,255
Long-term receivables	22,532	23,870
Goodwill	53,260	53,260
Other intangibles (less accumulated amortization of $2,136 and $1,228 at December 31, 2016 and June 30, 2017, respectively)	52,925	51,976
Other noncurrent assets	43,426	65,577
Total assets	6,930,722	6,772,073
LIABILITIES AND PARTNERS’ CAPITAL
Accounts payable	103,100	77,248
Accrued payroll and benefits	40,181	45,690
Accrued interest payable	65,459	65,643
Accrued taxes other than income	43,409	50,166
Environmental liabilities	6,466	10,249
Deferred revenue	115,023	101,891
Accrued product purchases	46,803	51,600
Energy commodity derivatives contracts, net	0	30,738
Energy commodity derivatives deposits	119	0
Other current liabilities	36,015	48,431
Total current liabilities	456,575	481,656
Long-term debt, net	4,231,912	4,087,192
Long-term pension and benefits	68,444	71,461
Other noncurrent liabilities	27,137	25,868
Environmental liabilities	12,385	13,791
Commitments and contingencies
Partners’ capital:
Limited partner unitholders (227,784 units and 228,025 units outstanding at December 31, 2016 and June 30, 2017, respectively)	2,230,692	2,193,346
Accumulated other comprehensive loss	(96,423)	(101,241)
Total partners’ capital	2,134,269	2,092,105
Total liabilities and partners’ capital	$ 6,930,722	$ 6,772,073