Northwest Natural Holding (NWN) 10-K2019 FY Annual report

Filed: 2 Mar 20, 1:44pm

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Exhibit 21

SUBSIDIARIES OF NORTHWEST NATURAL HOLDING COMPANY

an Oregon Corporation



Name of Subsidiary		Jurisdiction Organized

Northwest Natural Gas Company (dba NW Natural)		Oregon

Northwest Energy Corporation⁽¹⁾		Oregon

NWN Gas Reserves LLC⁽¹⁾		Oregon

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

NW Natural Water Company, LLC		Oregon

NW Natural Water Company of Oregon, LLC		Oregon

Sunstone Water, LLC		Oregon

Sunstone Infrastructure, LLC		Oregon

Sunriver Water LLC		Oregon

Sunriver Environmental LLC		Oregon

NW Natural Water Company of Washington, LLC		Washington

Cascadia Water, LLC		Washington

Cascadia Infrastructure, LLC		Washington

Suncadia Water Company, LLC		Washington

Suncadia Environmental Company, LLC		Washington

Exhibit 21




NW Natural Water Company of Idaho, LLC		Idaho

Gem State Water Company, LLC		Idaho

Gem State Infrastructure, LLC		Idaho

NW Natural Water of Texas, LLC		Texas

Blue Topaz Water, LLC		Texas

Blue Topaz Infrastructure, LLC		Texas

Salmon Valley Water Company		Oregon

Falls Water Co., Inc.		Idaho


(1)	Subsidiary of Northwest Natural Gas Company

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