CONCENTRATIONS, SIGNIFICANT CUSTOMERS, COMMITMENTS AND CONTINGENCIES (Tables)

9 Months Ended

Sep. 30, 2021

Concentrations, Significant Customers, Commitments And Contingencies Disclosure [Abstract]

Schedule of concentrations

At September 30, 2021 and 2020 and for each of the nine months then ended, the Company’s revenues and receivables were comprised of the following customer concentrations:

	Nine Months Ended September 30, 2021		Nine Months Ended September 30, 2020
	% of Revenues	% of Receivables	% of Revenues	% of Receivables
Customer 1	22%	17%	18%	16%
Customer 2	16%	13%	9%	11%
Customer 3	14%	11%	7%	—%
Customer 4	13%	14%	15%	—%

For each of the nine months ended September 30, 2021 and 2020, the Company’s segment revenues were comprised of the following customer concentrations:

	% of Revenue by Segment			% Revenue by Segment
	Nine Months Ended September 30, 2021			Nine Months Ended September 30, 2020
	Black Oil	Refining	Recovery	Black Oil	Refining	Recovery
Customer 1	—%	27%	—%	—%	25%	—%
Customer 2	—%	20%	—%	—%	13%	—%
Customer 3	—%	—%	73%	—%	—%	28%
Customer 4	—%	16%	—%	—%	20%	—%