NORTHWEST NATURAL GAS CO - FORM 10-K - EX-21 - EXHIBIT 21 SUBSIDIARIES OF NW NATURAL GAS COMPANY

file	filename
EX-32.1 - EXHIBIT 32.1 SOX CERTIFICATION - NORTHWEST NATURAL GAS CO	ex3212016.htm
EX-31.2 - EXHIBIT 31.2 CFO CERTIFICATION - NORTHWEST NATURAL GAS CO	ex3122016.htm
EX-31.1 - EXHIBIT 31.1 CEO CERTIFICATION - NORTHWEST NATURAL GAS CO	ex3112016.htm
EX-23 - EXHIBIT 23 CONSENT OF AUDITORS - NORTHWEST NATURAL GAS CO	ex232016.htm
EX-12 - EXHIBIT 12 RATIO OF EARNINGS TO FIXED CHARGES - NORTHWEST NATURAL GAS CO	ex122016.htm
EX-10.PP - EXHIBIT 10.PP LTIP FOR NW NATURAL GAS STORAGE - NORTHWEST NATURAL GAS CO	a10ppltipfornwnaturalgasst.htm
EX-10.OO - EXHIBIT 10.OO ANNUAL INCENTIVE PLAN FOR NW NATURAL GAS STORAGE - NORTHWEST NATURAL GAS CO	a10ooannualincentiveplanfo.htm
EX-10.CC - EXHIBIT 10.CC AMENDMENT TO RSU AGREEMENT - NORTHWEST NATURAL GAS CO	a10ccamendmenttorsuagreeme.htm
EX-10.AA - EXHIBIT 10.AA FORM OF RSU AGREEMENT 2017 - NORTHWEST NATURAL GAS CO	rsuagreement2017.htm
EX-10.X - EXHIBIT 10.X FORM OF LTIP AWARD AGREEMENT 2017-2019 - NORTHWEST NATURAL GAS CO	a10xltipawardagreement2017.htm
EX-10.O - EXHIBIT 10.O EXECUTIVE ANNUAL INCENTIVE PLAN - NORTHWEST NATURAL GAS CO	a10oexecutiveannualincenti.htm
10-K - FORM 10-K - NORTHWEST NATURAL GAS CO	form10-k2016.htm

EXHIBIT 21

SUBSIDIARIES OF NORTHWEST NATURAL GAS COMPANY

an Oregon Corporation



Name of Subsidiary		Jurisdiction Organized

Gill Ranch Storage, LLC		Oregon

NW Natural Energy, LLC		Oregon

NW Natural Gas Storage, LLC		Oregon

NNG Financial Corporation		Oregon

Trail West Holdings, LLC		Delaware

Trail West Pipeline, LLC		Delaware

BL Credit Holdings, LLC		Delaware

Northwest Biogas, LLC		Oregon

KB Pipeline Company		Oregon

Northwest Energy Corporation		Oregon

Northwest Energy Sub Corporation		Oregon

NW Natural Gas Reserves, LLC		Oregon

NORTHWEST NATURAL GAS CO - FORM 10-K - EX-21 - EXHIBIT 21 SUBSIDIARIES OF NW NATURAL GAS COMPANY - February 27, 2017