OCEAN RIG UDW INC

CUSIP: Y64354205 Class: COMMON STOCK-FO

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q1 2016
Shares 293,488 Value ($000) $241 Avg Close — Range —
Q4 2015
Shares 150,888 Value ($000) $246 Avg Close — Range —
Q3 2015
Shares 133,241 Value ($000) $284 Avg Close — Range —
Q2 2015
Shares 68,875 Value ($000) $353 Avg Close — Range —
Q1 2015
Shares 32,904 Value ($000) $217 Avg Close — Range —
Q4 2014
Shares 172,964 Value ($000) $1,605 Avg Close — Range —
Q3 2013
Shares 36,856 Value ($000) $671 Avg Close — Range —
Q2 2013
Shares 75,944 Value ($000) $1,422 Avg Close — Range —