Docket No:  UG 524 Docket Name:  NW NATURAL ADVICE NO. 25-21 PURCHASE GAS ADJUSTMENT (PGA) Submit Public Comment Subject Company:  NORTHWEST NATURAL     In the Matter of NORTHWEST NATURAL GAS COMPANY, dba NW NATURAL, Annual Purchased Gas Cost and Technical Rate Adjustments. Filed by Kyle Walker. Copies served to Gas List. HC, CONF, and NONC Native Excel Files saved to agency folder. Filing Date:   Advice No: 25-21A    Public Mtg: 10/28/2025    Effective:  10/31/2025 Expiration:   Status:  ALLOWED 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 NW NATURAL           MICHAEL LEWIS       NW NATURAL michael.lewis@nwnatural.com         Share NW NATURAL       NORTHWEST NATURAL 250 SW TAYLOR ST PORTLAND OR 97204 efiling@nwnatural.com         KYLE WALKER       NORTHWEST NATURAL 250 SE TAYLOR STREET PORTLAND OR 97204-3038 kyle.walker@nwnatural.com OREGON CITIZENS UTILITY BOARD           JENNIFER HILL-HART       OREGON CITIZENS' UTILITY BOARD 610 SW BROADWAY STE 400 PORTLAND OR 97205 jennifer@oregoncub.org         ROBERT JENKS       OREGON CITIZENS' UTILITY BOARD 610 SW BROADWAY, STE 400 PORTLAND OR 97205 bob@oregoncub.org STAFF           STEPHANIE S ANDRUS       Oregon Department of Justice BUSINESS ACTIVITIES SECTION 1162 COURT ST NE SALEM OR 97301-4096 stephanie.andrus@doj.oregon.gov         ANNA KIM       PUBLIC UTILITY COMMISSION OF OREGON P O BOX 1088 SALEM OR 97308 anna.kim@puc.oregon.gov