OIL STS INTL INC

Ticker: OIS CUSIP: 678026105 Class: Common Stock

RATIONAL ADVISORS LLC's Holding History (CIK: 0001143565)

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

Q4 2013

Shares 1,642 Value ($000) $167 Avg Close $59.96 Range $55.90 - $64.94

Q3 2013

Shares 1,902 Value ($000) $197 Avg Close $54.60 Range $50.41 - $61.05

Q2 2013

Shares 1,939 Value ($000) $180 Avg Close $51.03 Range $40.78 - $59.14

Q1 2013

Shares 3,069 Value ($000) $250 Avg Close $44.44 Range $40.73 - $47.26

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2013	1,642	$167	$59.96	$55.90 - $64.94
Q3 2013	1,902	$197	$54.60	$50.41 - $61.05
Q2 2013	1,939	$180	$51.03	$40.78 - $59.14
Q1 2013	3,069	$250	$44.44	$40.73 - $47.26