Note 10 - Business Concentration

12 Months Ended

Dec. 31, 2016

Notes to Financial Statements

Concentration Risk Disclosure [Text Block]

Note

10

– Business Concentration

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. Concentrations of credit risk with respect to accounts receivable are limited because the Company performs credit evaluations, sets credit limits, and monitors the payment patterns of its customers. Cash balances on deposits with financial institutions, at times,

may

exceed federally insured limits. The Company regularly monitors the institutions’ financial condition.

The Company’s top

ten

customers accounted for approximately

46.0%,

53.6%

and

51.1%

of the Company’s consolidated revenue for the years ended

December

 

31,

2016,

2015

and

2014,

respectively. For the year ended

December

 

31,

2016,

no individual customer accounted for

10.0%

or more of the Company's consolidated revenue. For the year ended

December

 

31,

2015,

revenue from

one

customer represented

15.5%

of the Company’s consolidated revenue. For the year ended

December

31,

2014

revenue from

two

customers individually represented

16.4%

and

9.6%

of the Company’s consolidated revenue. Other than those noted above, no other customer accounted for

10.0%

or more of the Company’s consolidated revenue in

2016,

2015

or

2014.

Revenue was earned from each of these customers within the Company’s Completion Services and Well Support Services segments.