OIL STS INTL INC

Ticker: OIS CUSIP: 678026105 Class: Common Stock

WATER ISLAND CAPITAL LLC's Holding History (CIK: 0001222765)

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

Q1 2014

Shares 103,539 Value ($000) $10,208 Avg Close $55.40 Range $51.78 - $59.95

Q4 2013

Shares 46,808 Value ($000) $4,761 Avg Close $59.96 Range $55.90 - $64.94

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2014	103,539	$10,208	$55.40	$51.78 - $59.95
Q4 2013	46,808	$4,761	$59.96	$55.90 - $64.94