NORTHWEST NAT GAS CO

CUSIP: 667655104 Class: COM

Asset Management One Co., Ltd.'s Holding History (CIK: 0001068855)

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

Q1 2017
Shares 53,754 Value ($000) $3,180 Avg Close — Range —
Q2 2016
Shares 44,094 Value ($000) $2,764 Avg Close — Range —