NORTHWEST NAT GAS CO

CUSIP: 667655104 Class: COM

CIBC Private Wealth Group, LLC's Holding History (CIK: 0001298088)

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

Q2 2018
Shares 1,000 Value ($000) $64 Avg Close — Range —
Q1 2018
Shares 1,000 Value ($000) $58 Avg Close — Range —
Q4 2017
Shares 1,000 Value ($000) $60 Avg Close — Range —