The following table presents our revenues disaggregated by revenue source:



	Three Months Ended June 30, 2019
	Black Oil		Refining & Marketing		Recovery		Total
Primary Geographical Markets
Northern United States	$	9,880,565	$	—	$	—	$	9,880,565
Southern United States	28,027,246		3,277,402		2,472,079		33,776,727
	$	37,907,811	$	3,277,402	$	2,472,079	$	43,657,292
Sources of Revenue
Petroleum products	$	37,907,811	$	3,277,402	$	642,596	$	41,827,809
Metals	—		—		1,829,483		1,829,483
Total revenues	$	37,907,811	$	3,277,402	$	2,472,079	$	43,657,292



	Six Months Ended June 30, 2019
	Black Oil		Refining & Marketing		Recovery		Total
Primary Geographical Markets
Northern United States	$	19,204,348	$	—	$	—	$	19,204,348
Southern United States	51,518,650		6,136,023		6,118,983		63,773,656
	$	70,722,998	$	6,136,023	$	6,118,983	$	82,978,004
Sources of Revenue
Petroleum products	$	70,722,998	$	6,136,023	$	1,854,113	$	78,713,134
Metals	—		—		4,264,870		4,264,870
Total revenues	$	70,722,998	$	6,136,023	$	6,118,983	$	82,978,004



	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