Annual report pursuant to Section 13 and 15(d)

CONCENTRATIONS (Details)

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CONCENTRATIONS (Details) - Revenue from Contract with Customer - Customer Concentration Risk
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Phillips 66      
Concentration Risk [Line Items]      
Percentage of revenues 12.00%    
Shell Trading US Company      
Concentration Risk [Line Items]      
Percentage of revenues 17.00%    
Chevron Products Company      
Concentration Risk [Line Items]      
Percentage of revenues 20.00%    
PBF Holding Company      
Concentration Risk [Line Items]      
Percentage of revenues 13.00%    
Spire      
Concentration Risk [Line Items]      
Percentage of revenues 6.00% 16.00% 7.00%
Ameren Energy      
Concentration Risk [Line Items]      
Percentage of revenues 4.00% 11.00%  
Department of Defense      
Concentration Risk [Line Items]      
Percentage of revenues 4.00% 15.00%