Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Materials and supplies inventory		$ 78,400	$ 60,400
Total assets	[1]	11,218,950	11,271,628
Accounts receivable, net		554,222	554,263
Total liabilities	[2]	8,196,787	8,163,513
Related Parties [Member]
Total assets		1,309,189	1,289,269
Accounts receivable, net		346,688	313,937
Total liabilities		346,113	312,305
Natural-Gas Liquids [Member]
NGLs line-fill inventory		$ 3,700	$ 6,500

[1] Total assets includes related-party amounts of $1.3 billion as of June 30, 2023, and December 31, 2022, which includes related-party Accounts receivable, net of $346.7 million and $313.9 million as of June 30, 2023, and December 31, 2022, respectively. See Note 5.

[2] Total liabilities includes related-party amounts of $346.1 million and $312.3 million as of June 30, 2023, and December 31, 2022, respectively. See Note 5.