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CONCENTRATIONS OF RISK AND SIGNIFICANT CUSTOMERS (Tables)
3 Months Ended
Mar. 31, 2023
Commitments and Contingencies Disclosure [Abstract]  
Schedule of concentrations
At March 31, 2023 and 2022 and for each of the three months then ended, the Company’s revenues and receivables were comprised of the following customer concentrations:
As of and for the Three Months Ended
 March 31, 2023March 31, 2022
% of
Revenues
% of
Receivables
% of
Revenues
% of
Receivables
Customer 138%23%—%—%
Customer 237%1%—%—%
Customer 35%4%42%31%

For each of the three months ended March 31, 2023 and 2022, the Company’s segment revenues were comprised of the following customer concentrations:
% of Revenue by Segment% Revenue by Segment
March 31, 2023March 31, 2022
RefiningBlack Oil and RecoveryRefiningBlack Oil and Recovery
Customer 139%—%—%—%
Customer 239%—%—%—%
Customer 31%75%—%78%