NATURAL GAS SERVICES GROUP

CUSIP: 63886q109 Class: COM

FRANKLIN STREET ADVISORS INC /NC's Holding History (CIK: 0001010873)

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

Q3 2014
Shares 45,050 Value ($000) $1,084 Avg Close — Range —
Q2 2014
Shares 30,750 Value ($000) $1,017 Avg Close — Range —
Q1 2014
Shares 31,100 Value ($000) $937 Avg Close — Range —
Q4 2013
Shares 31,400 Value ($000) $866 Avg Close — Range —
Q3 2013
Shares 31,400 Value ($000) $842 Avg Close — Range —
Q2 2013
Shares 30,650 Value ($000) $720 Avg Close — Range —