NATURAL GAS SERVICES GROUP

Ticker: NGS CUSIP: 63886Q109 Class: Common Stock

Opus Capital Group, LLC's Holding History (CIK: 0001330325)

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

Q1 2016

Shares 82,914 Value ($000) $1,793 Avg Close $18.82 Range $15.79 - $22.57

Q4 2015

Shares 78,141 Value ($000) $1,743 Avg Close $21.48 Range $18.28 - $24.21

Q3 2015

Shares 73,441 Value ($000) $1,417 Avg Close $20.31 Range $18.37 - $22.64

Q2 2015

Shares 46,738 Value ($000) $1,067 Avg Close $23.06 Range $19.10 - $25.82

Q1 2015

Shares 45,988 Value ($000) $884 Avg Close $19.65 Range $17.69 - $23.12

Q4 2014

Shares 26,354 Value ($000) $607 Avg Close $23.39 Range $20.44 - $26.73

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2016	82,914	$1,793	$18.82	$15.79 - $22.57
Q4 2015	78,141	$1,743	$21.48	$18.28 - $24.21
Q3 2015	73,441	$1,417	$20.31	$18.37 - $22.64
Q2 2015	46,738	$1,067	$23.06	$19.10 - $25.82
Q1 2015	45,988	$884	$19.65	$17.69 - $23.12
Q4 2014	26,354	$607	$23.39	$20.44 - $26.73