Quarterly report pursuant to Section 13 or 15(d)

Investments in Unconsolidated Affiliates (Details)

v3.21.1
Investments in Unconsolidated Affiliates (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2021
USD ($)
item
mi
Mar. 31, 2020
USD ($)
Investments in unconsolidated affiliates    
Balance at beginning of period $ 722,478  
Additional investments 757  
Equity in earnings of unconsolidated affiliates 20,744 $ 19,077
Distributions from unconsolidated affiliates (31,910) $ (23,628)
Balance at end of period $ 712,069  
Stonewall    
Equity Method Investments    
Ownership percentage 15.00%  
Number of miles of pipeline | mi 67  
Investments in unconsolidated affiliates    
Balance at beginning of period $ 137,632  
Equity in earnings of unconsolidated affiliates 1,443  
Distributions from unconsolidated affiliates (4,815)  
Balance at end of period $ 134,260  
MarkWest Joint Venture    
Equity Method Investments    
Ownership percentage 50.00%  
Percentage of interest held by joint venture in third party fractionator in Ohio 33.33%  
Number of fractionators | item 2  
Investments in unconsolidated affiliates    
Balance at beginning of period $ 584,846  
Additional investments 757  
Equity in earnings of unconsolidated affiliates 19,301  
Distributions from unconsolidated affiliates (27,095)  
Balance at end of period $ 577,809