Natural Gas Utilities — Washington
Service-area summaries are high-level and do not guarantee service at a specific address. Contact the listed utility directly for address-level eligibility.
2 published results
- Cascade Natural Gas Corporation
Investor-Owned · Major Regulated
States served: Washington
Customer classes: Commercial, Residential
Last confirmed: August 27, 2026
Service area (high-level): Natural gas distribution in Washington and Oregon (WA primary row; WA tariff territory per Rate Schedule 503 availability clause).
View utility details - City of Ellensburg
Municipal · Municipal System
States served: Washington
Customer classes: Commercial, Residential
Last confirmed: August 24, 2026
Service area (high-level): City of Ellensburg and Kittitas County; 140+ miles of distribution mains; 5,000+ customers (city natural gas utility page).
View utility details