Utility overview
- Legal name
- Colorado Natural Gas, Inc.
- Parent organization
- Summit Utilities, Inc.
- Ownership type
- Investor-Owned
- Utility class
- Major Regulated
Official website and contact
- Official website: Visit official website (opens in a new tab)
- Customer service: 1-800-720-8193
- Gas emergency: 1-800-883-3181
- Email: Not listed
- Address: Not listed
Published state services
Colorado — CO
Service area: PUC-regulated service territories (Mountain/Eastern Colorado divisions per tariff).
Rate jurisdiction: Colorado Public Utilities Commission
Customer classes: Commercial, Residential
Last confirmed: Aug 20, 2026
- State customer URL: Open link (opens in a new tab)
- Tariff or territory source: Open link (opens in a new tab)
Utility identity sources
- CNG Current Tariff (opens in a new tab)
Tariff · Colorado Natural Gas, Inc.
- Customer Notice (opens in a new tab)
Tariff · Colorado Natural Gas, Inc.
- Rates and Tariff (opens in a new tab)
Tariff · Colorado Natural Gas, Inc.
State-service sources
Colorado — CO
- Utility Providers (opens in a new tab)
State Regulator Inventory · Colorado Public Utilities Commission
Verified utility identity
Verified means GCC confirmed utility identity, retail gas-distribution status, and state-service evidence against authoritative sources.
Confirmation status
- Last confirmed
- Aug 20, 2026
- Reconfirmation status
- Current
Directory-information notice
GCC provides directory information only. Listings are not legal advice, regulatory advice, endorsements, or guarantees of utility service eligibility.
Service-area summaries are high-level and do not guarantee service at a specific address. Contact the listed utility directly for address-level eligibility.