NORTHWEST NAT GAS CO

CUSIP: 667655104 Class: COM

DAVIDSON INVESTMENT ADVISORS's Holding History (CIK: 0001140771)

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

Q1 2017
Shares 500 Value ($000) $29 Avg Close — Range —
Q4 2016
Shares 500 Value ($000) $29 Avg Close — Range —
Q3 2016
Shares 500 Value ($000) $30 Avg Close — Range —
Q1 2015
Shares 2,872 Value ($000) $137 Avg Close — Range —
Q4 2014
Shares 2,872 Value ($000) $143 Avg Close — Range —
Q3 2014
Shares 2,872 Value ($000) $120 Avg Close — Range —
Q2 2014
Shares 2,872 Value ($000) $135 Avg Close — Range —
Q1 2014
Shares 2,872 Value ($000) $126 Avg Close — Range —
Q4 2013
Shares 2,872 Value ($000) $122 Avg Close — Range —
Q3 2013
Shares 2,872 Value ($000) $120 Avg Close — Range —
Q2 2013
Shares 2,872 Value ($000) $122 Avg Close — Range —