NATURAL GAS SERVICES GROUP

Ticker: NGS CUSIP: 63886Q109 Class: Common Stock

B. Riley Wealth Advisors, Inc.'s Holding History (CIK: 0001464811)

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

Q4 2014

Shares 8 Value ($000) $0 Avg Close $23.39 Range $20.44 - $26.73

Q2 2014

Shares 8 Value ($000) $267 Avg Close $30.73 Range $28.13 - $34.48

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2014	8	$0	$23.39	$20.44 - $26.73
Q2 2014	8	$267	$30.73	$28.13 - $34.48