Consolidated Balance Sheets - USD ($) $ in Thousands		Jun. 30, 2016	Dec. 31, 2015
ASSETS
Cash and cash equivalents		$ 34,263	$ 28,731
Trade accounts receivable		93,329	83,893
Other accounts receivable		19,368	12,701
Inventory		156,430	130,868
Energy commodity derivatives contracts, net		7,359	39,243
Energy commodity derivatives deposits		28,528	0
Other current assets		46,305	43,418
Total current assets		385,582	338,854
Property, plant and equipment		6,470,356	6,166,766
Less: Accumulated depreciation		1,428,426	1,347,537
Net property, plant and equipment		5,041,930	4,819,229
Investments in non-controlled entities		850,401	765,628
Long-term receivables		18,134	20,374
Goodwill		53,260	53,260
Other intangibles (less accumulated amortization of $13,709 and $5,676 at December 31, 2015 and June 30, 2016, respectively)		52,337	1,856
Tank bottoms		35,492	27,533
Other noncurrent assets		11,068	14,833
Total assets		6,448,204	6,041,567
LIABILITIES AND PARTNERS’ CAPITAL
Accounts payable		118,484	104,094
Accrued payroll and benefits		36,827	51,764
Accrued interest payable		62,294	51,296
Accrued taxes other than income		45,124	51,587
Environmental liabilities		15,572	15,679
Deferred revenue		98,562	81,627
Accrued product purchases		22,481	31,339
Energy commodity derivatives deposits		0	24,252
Current portion of long-term debt, net		250,083	250,335
Other current liabilities		64,235	51,099
Total current liabilities		713,662	713,072
Long-term debt, net	[1]	3,574,898	3,189,287
Long-term pension and benefits		81,863	77,551
Other noncurrent liabilities		26,412	24,162
Environmental liabilities		13,171	15,759
Commitments and contingencies
Partners’ capital:
Limited partner unitholders (227,427 units and 227,784 units outstanding at December 31, 2015 and June 30, 2016, respectively)		2,154,135	2,118,086
Accumulated other comprehensive loss		(115,937)	(96,350)
Total partners’ capital		2,038,198	2,021,736
Total liabilities and partners’ capital		$ 6,448,204	$ 6,041,567

[1] ong-term debt is presented net of unamortized debt issuance costs of $18.7 million and $22.9 million at December 31, 2015 and June 30, 2016, respectively.