UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 36,504	$ 29,128
Restricted cash	7,512	27,277
Accounts receivable - trade, net	247,819	417,002
Inventories	89,811	65,137
Net Investment in Lease, Current	69,370	9,293
Other	65,576	45,237
Total current assets	516,592	593,074
FIXED ASSETS, at cost	5,209,403	5,540,596
Less: Accumulated depreciation	(1,295,654)	(1,246,121)
Net fixed assets	3,913,749	4,294,475
MINERAL LEASEHOLDS, net of accumulated depletion	553,417	555,825
NET INVESTMENT IN DIRECT FINANCING LEASES, net of unearned income	0	107,702
EQUITY INVESTEES	321,541	334,523
INTANGIBLE ASSETS, net of amortization	129,178	138,927
GOODWILL	301,959	301,959
RIGHT OF USE ASSETS, net	159,488	177,071
OTHER ASSETS, net of amortization	57,426	94,085
TOTAL ASSETS	5,953,350	6,597,641
CURRENT LIABILITIES:
Accounts payable - trade	151,762	218,737
Accrued liabilities	181,840	196,758
Total current liabilities	333,602	415,495
SENIOR SECURED CREDIT FACILITY	984,800	959,300
SENIOR UNSECURED NOTES, net of debt issuance costs	2,373,928	2,469,937
DEFERRED TAX LIABILITIES	12,665	12,640
OTHER LONG-TERM LIABILITIES	378,870	393,850
Total liabilities	4,083,865	4,251,222
MEZZANINE CAPITAL:
Class A Convertible Preferred Units, 25,336,778 issued and outstanding at September 30, 2020 and December 31, 2019	790,115	790,115
Redeemable noncontrolling interests, 139,359 and 130,000 preferred units issued and outstanding at September 30, 2020 and December 31, 2019, respectively	137,475	125,133
PARTNERS’ CAPITAL:
Common unitholders, 122,579,218 units issued and outstanding at September 30, 2020 and December 31, 2019	951,554	1,443,320
Accumulated other comprehensive loss	(8,066)	(8,431)
Noncontrolling interests	(1,593)	(3,718)
Total partners' capital	941,895	1,431,171
TOTAL LIABILITIES, MEZZANINE CAPITAL AND PARTNERS’ CAPITAL	$ 5,953,350	$ 6,597,641