OIL STS INTL INC

Ticker: OIS CUSIP: 678026105 Class: Common Stock

EMERALD ADVISERS, LLC's Holding History (CIK: 0001015083)

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

Q4 2019

Shares 9,859 Value ($000) $161 Avg Close $15.19 Range $12.05 - $17.81

Q3 2019

Shares 19,643 Value ($000) $261 Avg Close $14.38 Range $11.73 - $19.01

Q2 2019

Shares 256,201 Value ($000) $4,688 Avg Close $17.92 Range $15.79 - $21.27

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	9,859	$161	$15.19	$12.05 - $17.81
Q3 2019	19,643	$261	$14.38	$11.73 - $19.01
Q2 2019	256,201	$4,688	$17.92	$15.79 - $21.27