Gas Utilities Directory — utility profile
Cascade Natural Gas Corporation
Washington · Investor-Owned · Major Regulated
Utility overview
- Utility name
- Cascade Natural Gas Corporation
- Legal name
- Cascade Natural Gas Corporation
- Ownership type
- Investor-Owned
- Utility class
- Major Regulated
- Rate jurisdiction
- Washington Utilities and Transportation Commission
- State directory
- Washington utilities
- Customer classes
- Commercial, Residential
Official website and contact
- Official website
- www.cngc.com
- Customer service phone
- 1-888-522-1130
- Not published
Contact details are shown only where the utility publishes them.
Published state services
Washington
Natural gas distribution in Washington and Oregon (WA primary row; WA tariff territory per Rate Schedule 503 availability clause).
Customer classes: Commercial, Residential
Last confirmed: August 27, 2026
State customer informationVerification sources
- Cascade Natural Gas — Rate Schedule 503 Residential Service
Cascade Natural Gas · Tariff — Rate Schedule 503 Residential Service; Rate Schedule 504 General Commercial Service (accessed 2026-08-27)
- Rates & Tariffs / Cascade Natural Gas
Cascade Natural Gas · Official Utility Website — Company tariff index; tariffs approved by WUTC and OPUC (accessed 2026-08-27)
- Washington UTC — Docket UG-260127 (Cascade Natural Gas Corporation)
Washington UTC · State Regulator Inventory — Cascade Natural Gas Corporation subject company; WA commission jurisdiction (accessed 2026-08-27)