Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies - Percentage of Revenue by Major Customers (Details)

v3.22.0.1
Significant Accounting Policies - Percentage of Revenue by Major Customers (Details) - Customer Concentration Risk [Member] - Revenue from Contract with Customer Benchmark [Member]
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
BP Products North America [Member]      
us-gaap_ConcentrationRiskPercentage1 34.00% 39.00% 40.00%
Chevron - Texaco [Member]      
us-gaap_ConcentrationRiskPercentage1 14.00%    
Mercuria Energy America Inc. [Member]      
us-gaap_ConcentrationRiskPercentage1   10.00%  
Shell Trading (US) Co./ Shell Energy N.A. [Member]      
us-gaap_ConcentrationRiskPercentage1     11.00%
Vitol Inc. [Member]      
us-gaap_ConcentrationRiskPercentage1     12.00%
Williams Field Services [Member]      
us-gaap_ConcentrationRiskPercentage1 11.00% 13.00%