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CONCENTRATIONS OF RISK AND SIGNIFICANT CUSTOMERS
 3 Months Ended
Mar. 31, 2023
Commitments and Contingencies Disclosure [Abstract]  
CONCENTRATIONS OF RISK AND SIGNIFICANT CUSTOMERS CONCENTRATIONS OF RISK AND SIGNIFICANT CUSTOMERS
The Company has concentrated credit risk for cash by maintaining deposits in one bank.  These balances are insured by the Federal Deposit Insurance Corporation up to $250,000. From time to time during the quarter ended March 31, 2023 and year end December 31, 2022, the Company’s cash balances exceeded the federally insured limits. No losses have been incurred relating to this concentration. 
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%
The Company had one vendor that represented 35% of total purchases and 0% of total payables for the three months ended March 31, 2023, and one vendor that represented 33% of total purchases and 33% of total payables for the three months ended March 31, 2022.