NATURAL GAS SERVICES GROUP

Ticker: NGS CUSIP: 63886Q109 Class: Common Stock

ZACKS INVESTMENT MANAGEMENT's Holding History (CIK: 0001086483)

Note: Option positions (PUT/CALL) are excluded.

Q2 2016

Shares 39,412 Value ($000) $903 Avg Close $22.14 Range $19.61 - $25.27

Q1 2016

Shares 38,650 Value ($000) $836 Avg Close $18.82 Range $15.79 - $22.57

Q4 2015

Shares 35,106 Value ($000) $783 Avg Close $21.48 Range $18.28 - $24.21

Q3 2013

Shares 17,642 Value ($000) $473 Avg Close $25.86 Range $23.52 - $27.95

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2016	39,412	$903	$22.14	$19.61 - $25.27
Q1 2016	38,650	$836	$18.82	$15.79 - $22.57
Q4 2015	35,106	$783	$21.48	$18.28 - $24.21
Q3 2013	17,642	$473	$25.86	$23.52 - $27.95