OASIS PETROLEUM INC

CUSIP: 674215AF5 Class: CORP

ADVENT CAPITAL MANAGEMENT /DE/'s Holding History (CIK: 0001097278)

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

Q1 2014
Shares 2,500,000 Value ($000) $2,706 Avg Close — Range —
Q4 2013
Shares 1,500,000 Value ($000) $1,590 Avg Close — Range —
Q3 2013
Shares 500,000 Value ($000) $528 Avg Close — Range —