CHINA OILFIELD SERVICES-A

CUSIP: B24G115 Class: COM

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q2 2014
Shares 467,458 Value ($000) $1,325 Avg Close — Range —
Q1 2014
Shares 467,458 Value ($000) $1,295 Avg Close — Range —
Q4 2013
Shares 379,734 Value ($000) $1,400 Avg Close — Range —
Q3 2013
Shares 379,734 Value ($000) $1,100 Avg Close — Range —