OIL STS INTL INC

Ticker: OIS CUSIP: 678026105 Class: Common Stock

VIKING FUND MANAGEMENT LLC's Holding History (CIK: 0001169069)

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

Q3 2017
Shares 100,000 Value ($000) $2,535 Avg Close $24.59 Range $20.90 - $28.85
Q2 2017
Shares 390,000 Value ($000) $10,589 Avg Close $29.62 Range $25.25 - $33.75
Q1 2017
Shares 600,000 Value ($000) $19,890 Avg Close $36.69 Range $30.25 - $41.25
Q4 2016
Shares 660,000 Value ($000) $25,740 Avg Close $33.97 Range $28.00 - $41.75
Q3 2016
Shares 660,000 Value ($000) $20,836 Avg Close $30.74 Range $27.07 - $33.79
Q2 2016
Shares 585,000 Value ($000) $19,235 Avg Close $32.41 Range $28.46 - $36.73
Q1 2016
Shares 525,000 Value ($000) $16,548 Avg Close $27.00 Range $21.44 - $33.05
Q4 2015
Shares 225,000 Value ($000) $6,131 Avg Close $29.75 Range $24.24 - $33.14
Q3 2015
Shares 100,000 Value ($000) $2,613 Avg Close $29.60 Range $23.35 - $37.27