NORTHWEST NAT GAS CO

CUSIP: 667655104 Class: COM

BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp's Holding History (CIK: 0001228242)

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

Q4 2014
Shares 4,942 Value ($000) $247 Avg Close — Range —
Q3 2014
Shares 4,942 Value ($000) $209 Avg Close — Range —
Q2 2014
Shares 4,942 Value ($000) $233 Avg Close — Range —
Q1 2014
Shares 4,755 Value ($000) $209 Avg Close — Range —
Q4 2013
Shares 4,755 Value ($000) $204 Avg Close — Range —