NEXEN INC

CUSIP: 65334H102 Class: COM

Zurcher Kantonalbank (Zurich Cantonalbank)'s Holding History (CIK: 0001368163)

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

Q4 2012
Shares 33,257 Value ($000) $887 Avg Close — Range —
Q3 2012
Shares 29,112 Value ($000) $737 Avg Close — Range —
Q2 2012
Shares 185,074 Value ($000) $3,130 Avg Close — Range —
Q1 2012
Shares 248,002 Value ($000) $4,538 Avg Close — Range —
Q4 2011
Shares 329,708 Value ($000) $5,249 Avg Close — Range —