NW Natural Holdings 250 SW Taylor St. Portland, OR 97204 503-226-4211
Investor Relations Contact Information Nikki Sparley Director, Investor Relations 503-721-2530 Nikki.Sparley@nwnatural.com
Shareholder Services Contact Information Carmen Whitley Stock Plan Administrator +1 503-220-2402 Shareholder@nwnatural.com
Transfer Agent American Stock Transfer & Trust Co. (AST) 6201 15th Avenue Brooklyn, NY 11219 888-777-0321 info@astfinancial.com