The following table presents our revenues disaggregated by revenue source:



	Three Months Ended June 30, 2018
	Black Oil		Refining & Marketing		Recovery		Total
Primary Geographical Markets
Northern United States	$	10,115,827	$	—	$	—	$	10,115,827
Southern United States	28,353,304		4,392,870		4,055,769		36,801,943
	$	38,469,131	$	4,392,870	$	4,055,769	$	46,917,770
Sources of Revenue
Petroleum products	$	38,469,131	$	4,392,870	$	683,270	$	43,545,271
Metals	—		—		3,372,499		3,372,499
Total revenues	$	38,469,131	$	4,392,870	$	4,055,769	$	46,917,770



	Six Months Ended June 30, 2018
	Black Oil		Refining & Marketing		Recovery		Total
Primary Geographical Markets
Northern United States	$	18,953,057	$	—	$	—	$	18,953,057
Southern United States	51,753,320		10,068,111		7,511,477		69,332,908
	$	70,706,377	$	10,068,111	$	7,511,477	$	88,285,965
Sources of Revenue
Petroleum products	$	70,706,377	$	10,068,111	$	1,060,412	$	81,834,900
Metals	—		—		6,451,065		6,451,065
Total revenues	$	70,706,377	$	10,068,111	$	7,511,477	$	88,285,965



	Three Months Ended June 30, 2017
	Black Oil		Refining & Marketing		Recovery		Total
Primary Geographical Markets
Northern United States	$	8,782,587	$	—	$	—	$	8,782,587
Southern United States	18,601,815		5,186,358		4,342,019		28,130,192
	$	27,384,402	$	5,186,358	$	4,342,019	$	36,912,779
Sources of Revenue
Petroleum products	$	27,384,402	$	5,186,358	$	1,904,485	$	34,475,245
Metals	—		—		2,437,534		2,437,534
Total revenues	$	27,384,402	$	5,186,358	$	4,342,019	$	36,912,779



	Six Months Ended June 30, 2017
	Black Oil		Refining & Marketing		Recovery		Total
Primary Geographical Markets
Northern United States	$	14,535,599	$	—	$	—	$	14,535,599
Southern United States	37,652,886		10,580,399		8,914,509		57,147,794
	$	52,188,485	$	10,580,399	$	8,914,509	$	71,683,393
Sources of Revenue
Petroleum products	$	52,188,485	$	10,580,399	$	6,104,703	$	68,873,587
Metals	—		—		2,809,806		2,809,806
Total revenues	$	52,188,485	$	10,580,399	$	8,914,509	$	71,683,393