REVENUES (Tables)

3 Months Ended

Mar. 31, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of revenue

The following tables present our revenues disaggregated by geographical market and revenue source:

	Three Months Ended March 31, 2021
	Black Oil		Refining & Marketing		Recovery		Total
Primary Geographical Markets
Northern United States	$	10,864,410	$	—	$	—	$	10,864,410
Southern United States	21,293,838		19,273,952		6,651,793		47,219,583
	$	32,158,248	$	19,273,952	$	6,651,793	$	58,083,993
Sources of Revenue
Base oil	$	9,113,893	$	—	$	295,315	$	9,409,208
Pygas	—		2,972,431		—		2,972,431
Industrial fuel	—		311,693		—		311,693
Distillates	—		15,989,828		—		15,989,828
Oil collection services	1,561,927		—		76,431		1,638,358
Metals	—		—		6,280,047		6,280,047
Other re-refinery products	1,468,229		—		—		1,468,229
VGO/Marine fuel sales	20,014,199		—		—		20,014,199
Total revenues	$	32,158,248	$	19,273,952	$	6,651,793	$	58,083,993

	Three Months Ended March 31, 2020
	Black Oil		Refining & Marketing		Recovery		Total
Primary Geographical Markets
Northern United States	$	9,488,331	$	—	$	—	$	9,488,331
Southern United States	20,043,039		2,510,593		4,161,466		26,715,098
	$	29,531,370	$	2,510,593	$	4,161,466	$	36,203,429
Sources of Revenue
Base oil	$	7,362,727	$	—	$	802,899	$	8,165,626
Pygas	—		2,457,841		—		2,457,841
Industrial fuel	1,157,136		52,752		—		1,209,888
Oil collection services	1,198,828		—		—		1,198,828
Metals	—		—		3,358,567		3,358,567
Other re-refinery products	2,656,704		—				2,656,704
VGO/Marine fuel sales	17,155,975		—		—		17,155,975
Total revenues	$	29,531,370	$	2,510,593	$	4,161,466	$	36,203,429