Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 32.8	$ 39.6
Accounts receivable:
Trade, net of allowance for bad debt of $0.3 and $0.5, respectively	55.3	80.6
Accrued revenue and other	534.3	447.5
Fair value of derivative assets	69.1	25.0
Other current assets	116.6	58.7
Total current assets	808.1	651.4
Property and equipment, net of accumulated depreciation of $4,096.8 and $3,863.0, respectively	6,493.6	6,652.1
Intangible assets, net of accumulated amortization of $731.3 and $668.8, respectively	1,120.2	1,125.4
Investment in unconsolidated affiliates	30.7	41.6
Fair value of derivative assets	2.0	4.9
Other assets, net	111.9	75.5
Total assets	8,566.5	8,550.9
Current liabilities:
Accounts payable and drafts payable	95.5	60.5
Accounts payable to related party	1.4	1.0
Accrued gas, NGLs, condensate, and crude oil purchases	415.0	290.5
Fair value of derivative liabilities	107.6	37.1
Current maturities of long-term debt	249.9	349.8
Other current liabilities	170.1	149.1
Total current liabilities	1,039.5	888.0
Long-term debt	4,206.4	4,244.0
Asset retirement obligations	14.6	14.2
Other long-term liabilities	89.3	80.6
Deferred tax liability, net	118.7	108.6
Fair value of derivative liabilities	0.0	2.5
Members’ equity:
Members’ equity (489,854,915 and 489,381,149 units issued and outstanding, respectively)	1,390.1	1,508.8
Accumulated other comprehensive loss	(8.0)	(15.3)
Non-controlling interest	1,715.9	1,719.5
Total members’ equity	3,098.0	3,213.0
Commitments and contingencies
Total liabilities and members’ equity	$ 8,566.5	$ 8,550.9