Docket No:  UG 531 Docket Name:  NW NATURAL 2026 PURCHASE GAS ADJUSTMENTS AND OTHER SCHEDULES Submit Public Comment Subject Company:  NORTHWEST NATURAL     In the Matter of NORTHWEST NATURAL GAS COMPANY, dba NW NATURAL, Request for 2026-2027 Purchase Gas Adjustments and Coincident Rate Adjustments. Filed by Kyle Walker. Copies served to Gas List. HC and Confidential saved to Agency Folder. Filing Date:  7/23/2026 Advice No: 26-05       Effective:  10/31/2026 Expiration:   Status:  PENDING Case Manager:  ANNA KIM Phone:  971-239-2887 Email:   anna.kim@puc.oregon.gov Staff Contact:  ZHUOYI ZHAO Phone:   Email:   zhuoyi.zhao@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) General information about Tariff Filings.

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 NW NATURAL           MICHAEL LEWIS       NORTHWEST NATURAL michael.lewis@nwnatural.com         KYLE WALKER       NORTHWEST NATURAL 250 SE TAYLOR STREET PORTLAND OR 97204-3038 kyle.walker@nwnatural.com OREGON CITIZENS UTILITY BOARD           EMILY DOUGAN       OREGON CITIZENS' UTILITY BOARD emily@oregoncub.org         ROBERT JENKS       OREGON CITIZENS' UTILITY BOARD 610 SW BROADWAY, STE 400 PORTLAND OR 97205 bob@oregoncub.org         CLAIRE VALENTINE-FOSSUM       OREGON CITIZENS' UTILITY BOARD 610 SW BROADWAY STE 400 PORTLAND OR 97205 claire@oregoncub.org STAFF           ANNA KIM       PUBLIC UTILITY COMMISSION OF OREGON P O BOX 1088 SALEM OR 97308 anna.kim@puc.oregon.gov         JOHANNA RIEMENSCHNEIDER       Oregon Department of Justice BUSINESS ACTIVITIES SECTION 1162 COURT ST NE SALEM OR 97301-4796 johanna.riemenschneider@doj.oregon.gov