NATURAL GAS SERVICES GROUP

Ticker: NGS CUSIP: 63886Q109 Class: Common Stock

PICTON MAHONEY ASSET MANAGEMENT's Holding History (CIK: 0001539041)

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

Q3 2016

Shares 2,800 Value ($000) $69 Avg Close $24.06 Range $21.50 - $26.46

Q2 2016

Shares 1,900 Value ($000) $44 Avg Close $22.14 Range $19.61 - $25.27

Q3 2014

Shares 2,200 Value ($000) $53 Avg Close $28.91 Range $23.00 - $33.65

Q2 2014

Shares 4,000 Value ($000) $132 Avg Close $30.73 Range $28.13 - $34.48

Q3 2013

Shares 4,800 Value ($000) $129 Avg Close $25.86 Range $23.52 - $27.95

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2016	2,800	$69	$24.06	$21.50 - $26.46
Q2 2016	1,900	$44	$22.14	$19.61 - $25.27
Q3 2014	2,200	$53	$28.91	$23.00 - $33.65
Q2 2014	4,000	$132	$30.73	$28.13 - $34.48
Q3 2013	4,800	$129	$25.86	$23.52 - $27.95