Docket No:  ADV 1879 Docket Name:  CASCADE ADVICE NO. O26-06-01 SCHEDULE 810 DUAL FUEL SYSTEM PILOT Submit Public Comment Subject Company:  CASCADE NATURAL GAS     Cascade's Advice No. O26-06-01, Schedule 810, Dual Fuel Systems Pilot. The purpose of this filing is to extend the duration of the hybrid heating system pilot program established in Schedule 810, Dual Fuel Systems Pilot. Filing Date:  6/12/2026 Advice No: O26-06-01    Public Mtg: 8/4/2026    Effective:  8/5/2026 Expiration:   Status:  ALLOWED Case Manager:  ERIC SHIERMAN Phone:  971-239-3916 Email:   eric.shierman@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       CNGCREGULATORY@ CNGC       CASCADE NATURAL GAS 8113 W GRANDRIDGE BLVD KENNEWICK WA 99336 cngcregulatory@cngc.com       JAMES DEASON       ATTORNEY AT LAW 2180 MEMORIAL DR. SE ATLANTA GA 30317 jimdeason.or@gmail.com       MARLI KLASS       OREGON DEPARTMENT OF JUSTICE 1162 COURT STREET NE SALEM OR 97301-4096 marli.klass@doj.oregon.gov       MICHAEL PARVINEN       CASCADE NATURAL GAS CORPORATION 8113 W GRANDRIDGE BLVD KENNEWICK WA 99336-7166 michael.parvinen@cngc.com