OASIS PETE INC NEW

CUSIP: 674215108 Class: COMMON STOCK

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q1 2015
Shares 105,720 Value ($000) $1,503 Avg Close — Range —
Q4 2014
Shares 78,710 Value ($000) $1,302 Avg Close — Range —
Q3 2014
Shares 74,420 Value ($000) $3,111 Avg Close — Range —
Q2 2014
Shares 73,920 Value ($000) $4,131 Avg Close — Range —
Q1 2014
Shares 71,970 Value ($000) $3,003 Avg Close — Range —
Q4 2013
Shares 71,910 Value ($000) $3,378 Avg Close — Range —
Q3 2013
Shares 68,810 Value ($000) $3,381 Avg Close — Range —
Q2 2013
Shares 74,140 Value ($000) $2,882 Avg Close — Range —