Quarterly report pursuant to Section 13 or 15(d)

Transportation and Distribution Revenue - Schedules of Concentration of Risk (Details)

v3.21.2
Transportation and Distribution Revenue - Schedules of Concentration of Risk (Details) - Product and services - Revenue
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Crude oil transportation revenue        
Concentration Risk [Line Items]        
Concentration percentage 84.60% 0.00% 80.70% 0.00%
Natural gas transportation revenue        
Concentration Risk [Line Items]        
Concentration percentage 11.40% 64.60% 13.50% 67.20%
Natural gas distribution revenue        
Concentration Risk [Line Items]        
Concentration percentage 3.50% 26.00% 4.30% 25.30%