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Description of Business and Basis of Presentation (Tables)
 6 Months Ended
Jun. 30, 2020
Accounting Policies [Abstract]  
Assets and Investments Table As of June 30, 2020, the Partnership’s assets and investments consisted of the following:
Wholly
Owned and
Operated		Operated
Interests		Non-Operated
Interests		Equity
Interests
Gathering systems (1)
17  2  3  2  
Treating facilities38  3  —  3  
Natural-gas processing plants/trains26  3  —  5  
NGLs pipelines2  —  —  4  
Natural-gas pipelines5  —  —  1  
Crude-oil pipelines3  1  —  3  
(1)Includes the DBM water systems.
Ownership Interests and Method of Consolidation Table
The following table outlines the ownership interests and the accounting method of consolidation used in the consolidated financial statements for entities not wholly owned:
Percentage Interest
Full consolidation
Chipeta (1)
75.00 %
Proportionate consolidation (2)
Springfield system
50.10 %
Marcellus Interest systems
33.75 %
Equity investments (3)
Mi Vida
50.00 %
Ranch Westex
50.00 %
FRP
33.33 %
Red Bluff Express
30.00 %
Mont Belvieu JV
25.00 %
Rendezvous
22.00 %
TEP
20.00 %
TEG
20.00 %
Whitethorn LLC
20.00 %
Saddlehorn
20.00 %
Cactus II
15.00 %
Panola
15.00 %
Fort Union
14.81 %
White Cliffs
10.00 %
(1)The 25% third-party interest in Chipeta Processing LLC (“Chipeta”) is reflected within noncontrolling interests in the consolidated financial statements. See Noncontrolling interests below.
(2)The Partnership proportionately consolidates its associated share of the assets, liabilities, revenues, and expenses attributable to these assets.
(3)Investments in non-controlled entities over which the Partnership exercises significant influence are accounted for under the equity method of accounting. “Equity-investment throughput” refers to the Partnership’s share of average throughput for these investments.