OIL STS INTL INC

Ticker: OIS CUSIP: 678026105 Class: Common Stock

KEYBANK NATIONAL ASSOCIATION/OH's Holding History (CIK: 0001089877)

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

Q1 2014

Shares 3,162 Value ($000) $312 Avg Close $55.40 Range $51.78 - $59.95

Q4 2013

Shares 3,152 Value ($000) $321 Avg Close $59.96 Range $55.90 - $64.94

Q3 2013

Shares 3,671 Value ($000) $380 Avg Close $54.60 Range $50.41 - $61.05

Q2 2013

Shares 4,457 Value ($000) $413 Avg Close $51.03 Range $40.78 - $59.14

Q1 2013

Shares 8,940 Value ($000) $729 Avg Close $44.44 Range $40.73 - $47.26

Q4 2012

Shares 8,272 Value ($000) $592 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2014	3,162	$312	$55.40	$51.78 - $59.95
Q4 2013	3,152	$321	$59.96	$55.90 - $64.94
Q3 2013	3,671	$380	$54.60	$50.41 - $61.05
Q2 2013	4,457	$413	$51.03	$40.78 - $59.14
Q1 2013	8,940	$729	$44.44	$40.73 - $47.26
Q4 2012	8,272	$592	—	—