Docket No:  ADV 1789 Docket Name:  NW NATURAL ADVICE NO. 25-23 SCHEDULE 160 TSA COOS COUNTY Submit Public Comment Subject Company:  NORTHWEST NATURAL              See also:  UG 528    NW Natural's Advice No. 25-23. The purpose of this filing is to cancel Schedule 160 as part of NW Natural’s overall plan to continue to provide safe and reliable gas service to Coos County. Filing Date:  9/26/2025 Advice No: 25-23    Public Mtg: 12/30/2025    Effective:  12/31/2025 Expiration:   Status:  PENDING Case Manager:  Mitch Moore Phone:  971-375-5094 Email:   mitch.moore@puc.oregon.gov Staff Contact:  KATE AYRES Phone:  503-510-9611 Email:   kate.ayres@puc.oregon.gov Email Service List (semi-colon delimited)      Email Service List (comma delimited)   If you experience problems with the above 'Email Service List' links, please try one of these: Service List Popup (semi-colon delimited)     Service List Popup (comma delimited)

ACTIONS SERVICE LIST (Parties) SCHEDULE Public Comments C=Confidential HC=Highly Confidential Sort by Last Name      Sort by Party Name       Share NW NATURAL       NORTHWEST NATURAL 250 SW TAYLOR ST PORTLAND OR 97204 efiling@nwnatural.com ALLIANCE OF WESTERN ENERGY CONSUMERS           ELISE N KOEPKE       CABLE HUSTON LLP ekoepke@cablehuston.com         BRADLEY MULLINS       MW ANALYTICS, ENERGY & UTILITIES LUMMINTIE 13 OULU FI-90460 brmullins@mwanalytics.com         CHAD M STOKES       CABLE HUSTON LLP 1455 SW BROADWAY STE 1500 PORTLAND OR 97201 cstokes@cablehuston.com NW NATURAL           ROBERT WYMAN  (C)       NORTHWEST NATURAL 250 SW TAYLOR ST PORTLAND OR 97204 robert.wyman@nwnatural.com OREGON CITIZENS UTILITY BOARD           EMILY DOUGAN  (C)       OREGON CITIZENS' UTILITY BOARD emily@oregoncub.org         ELIZABETH LESCH-ABHAYA  (C)       OREGON CITIZENS’ UTILITY BOARD 610 SW BROADWAY STE 400 PORTLAND OR 97205 lizzie@oregoncub.org         CLAIRE VALENTINE-FOSSUM  (C)       OREGON CITIZENS' UTILITY BOARD 610 SW BROADWAY STE 400 PORTLAND OR 97205 claire@oregoncub.org STAFF           STEPHANIE S ANDRUS  (C)       Oregon Department of Justice BUSINESS ACTIVITIES SECTION 1162 COURT ST NE SALEM OR 97301-4096 stephanie.andrus@doj.oregon.gov         MITCH MOORE  (C)       PUBLIC UTILITY COMMISSION OF OREGON PO BOX 1088 SALEM OR 97308-1088 mitch.moore@puc.oregon.gov