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Filing metadata

Accession number: 0001140361-12-024083
Form type: Form 4
Filer: NORTHWEST NATURAL GAS CO
CIK: CIK 73020
Filed: May 09, 2012
Reporting period: May 07, 2012
Description: Insider transaction

Documents

0001140361-12-024083-index.htm

Complete submission

0001140361-12-024083.txt

directory listing

Filed by

NORTHWEST NATURAL GAS CO