OIL STS INTL INC

Ticker: OIS CUSIP: 678026105 Class: Common Stock

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q2 2015

Shares 13,161 Value ($000) $490 Avg Close $42.08 Range $36.30 - $48.16

Q1 2015

Shares 9,871 Value ($000) $393 Avg Close $42.31 Range $38.41 - $49.31

Q4 2014

Shares 7,242 Value ($000) $354 Avg Close $54.06 Range $41.51 - $62.34

Q3 2014

Shares 7,414 Value ($000) $459 Avg Close $62.75 Range $59.66 - $65.05

Q2 2014

Shares 5,716 Value ($000) $366 Avg Close $58.83 Range $53.39 - $65.77

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2015	13,161	$490	$42.08	$36.30 - $48.16
Q1 2015	9,871	$393	$42.31	$38.41 - $49.31
Q4 2014	7,242	$354	$54.06	$41.51 - $62.34
Q3 2014	7,414	$459	$62.75	$59.66 - $65.05
Q2 2014	5,716	$366	$58.83	$53.39 - $65.77