OIL STS INTL INC

Ticker: OIS CUSIP: 678026105 Class: Common Stock

MARIETTA INVESTMENT PARTNERS LLC's Holding History (CIK: 0001114702)

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

Q1 2014

Shares 2,305 Value ($000) $227 Avg Close $55.40 Range $51.78 - $59.95

Q4 2013

Shares 4,364 Value ($000) $444 Avg Close $59.96 Range $55.90 - $64.94

Q3 2013

Shares 4,404 Value ($000) $456 Avg Close $54.60 Range $50.41 - $61.05

Q2 2013

Shares 4,348 Value ($000) $403 Avg Close $51.03 Range $40.78 - $59.14

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2014	2,305	$227	$55.40	$51.78 - $59.95
Q4 2013	4,364	$444	$59.96	$55.90 - $64.94
Q3 2013	4,404	$456	$54.60	$50.41 - $61.05
Q2 2013	4,348	$403	$51.03	$40.78 - $59.14