OIL STS INTL INC

Ticker: OIS CUSIP: 678026105 Class: Common Stock

NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC's Holding History (CIK: 0001629649)

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

Q2 2017

Shares 8,889 Value ($000) $241 Avg Close $29.62 Range $25.25 - $33.75

Q1 2017

Shares 8,853 Value ($000) $293 Avg Close $36.69 Range $30.25 - $41.25

Q4 2016

Shares 8,854 Value ($000) $345 Avg Close $33.97 Range $28.00 - $41.75

Q3 2016

Shares 8,841 Value ($000) $279 Avg Close $30.74 Range $27.07 - $33.79

Q2 2016

Shares 8,876 Value ($000) $292 Avg Close $32.41 Range $28.46 - $36.73

Q1 2016

Shares 8,876 Value ($000) $280 Avg Close $27.00 Range $21.44 - $33.05

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2017	8,889	$241	$29.62	$25.25 - $33.75
Q1 2017	8,853	$293	$36.69	$30.25 - $41.25
Q4 2016	8,854	$345	$33.97	$28.00 - $41.75
Q3 2016	8,841	$279	$30.74	$27.07 - $33.79
Q2 2016	8,876	$292	$32.41	$28.46 - $36.73
Q1 2016	8,876	$280	$27.00	$21.44 - $33.05