NORTHWEST NAT GAS CO

CUSIP: 667655104 Class: COM

OXFORD ASSET MANAGEMENT LLP's Holding History (CIK: 0001438284)

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

Q3 2017
Shares 13,693 Value ($000) $889 Avg Close — Range —
Q2 2017
Shares 8,096 Value ($000) $485 Avg Close — Range —