CONCENTRATIONS, SIGNIFICANT CUSTOMERS, COMMITMENTS AND CONTINGENCIES

At March 31, 2019 and 2018 and for each of the three months then ended, the Company’s revenues and receivables were comprised of the following customer concentrations:



	Three Months Ended March 31, 2019		Three Months Ended March 31, 2018
	% of Revenues	% of Receivables	% of Revenues	% of Receivables
Customer 1	35%	28%	42%	13%
Customer 2	12%	12%	7%	3%

At March 31, 2019 and 2018 and for each of the three months then ended, the Company's segment revenues were comprised of the following customer concentrations:



	% of Revenue by Segment			% Revenue by Segment
	Three Months Ended March 31, 2019			Three Months Ended March 31, 2018
	Black Oil	Refining	Recovery	Black Oil	Refining	Recovery
Customer 1	42%	—%	—%	54%	—%	—%
Customer 2	15%	—%	—%	9%	—%	—%

The Company had no vendors that represented 10% of total purchases or payables for the three months ended March 31, 2019 and 2018.

The Company’s revenue, profitability and future rate of growth are substantially dependent on prevailing prices for petroleum-based products. Historically, the energy markets have been very volatile, and there can be no assurance that these prices will not be subject to wide fluctuations in the future. A substantial or extended decline in such prices could have a material adverse effect on the Company’s financial position, results of operations, cash flows, access to capital, and the quantities of petroleum-based products that the Company can economically produce.

Litigation:

The Company, in its normal course of business, is involved in various claims and legal action. In the opinion of management, the outcome of these claims and actions will not have a material adverse impact upon the financial position of the Company. We are currently party to the following material litigation proceedings:

Vertex Refining LA, LLC ("Vertex Refining LA"), the wholly-owned subsidiary of Vertex Operating, LLC, our wholly-owned subsidiary ("Vertex Operating") was named as a defendant, along with numerous other parties, in five lawsuits filed on or about February 12, 2016, in the Second Parish Court for the Parish of Jefferson, State of Louisiana, Case No. 121749, by Russell Doucet et. al., Case No. 121750, by Kendra Cannon et. al., Case No. 121751, by Lashawn Jones et. al., Case No. 121752, by Joan Strauss et. al. and Case No. 121753, by Donna Allen et. al. The suits relate to alleged noxious and harmful emissions from our facility located in Marrero, Louisiana. The suits seek damages for physical and emotional injuries, pain and suffering, medical expenses and deprivation of the use and enjoyment of plaintiffs’ homes. We intend to vigorously defend ourselves and oppose the relief sought in the complaints, provided that at this stage of the litigation, the Company has no basis for determining whether there is any likelihood of material loss associated with the claims and/or the potential and/or the outcome of the litigation.