OIL STS INTL INC

Ticker: OIS CUSIP: 678026105 Class: Common Stock

SHEPHERD KAPLAN KROCHUK, LLC's Holding History (CIK: 0001218583)

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

Q4 2014

Shares 9,050 Value ($000) $443 Avg Close $54.06 Range $41.51 - $62.34

Q3 2014

Shares 6,250 Value ($000) $387 Avg Close $62.75 Range $59.66 - $65.05

Q2 2014

Shares 6,250 Value ($000) $401 Avg Close $58.83 Range $53.39 - $65.77

Q1 2014

Shares 8,250 Value ($000) $813 Avg Close $55.40 Range $51.78 - $59.95

Q4 2013

Shares 8,500 Value ($000) $865 Avg Close $59.96 Range $55.90 - $64.94

Q3 2013

Shares 8,500 Value ($000) $879 Avg Close $54.60 Range $50.41 - $61.05

Q2 2013

Shares 4,500 Value ($000) $417 Avg Close $51.03 Range $40.78 - $59.14

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2014	9,050	$443	$54.06	$41.51 - $62.34
Q3 2014	6,250	$387	$62.75	$59.66 - $65.05
Q2 2014	6,250	$401	$58.83	$53.39 - $65.77
Q1 2014	8,250	$813	$55.40	$51.78 - $59.95
Q4 2013	8,500	$865	$59.96	$55.90 - $64.94
Q3 2013	8,500	$879	$54.60	$50.41 - $61.05
Q2 2013	4,500	$417	$51.03	$40.78 - $59.14