Gas Utilities Directory — utility profile
Montana-Dakota Utilities Co.
South Dakota · Investor-Owned · Major Regulated
Utility overview
- Utility name
- Montana-Dakota Utilities Co.
- Legal name
- Montana-Dakota Utilities Co.
- Ownership type
- Investor-Owned
- Utility class
- Major Regulated
- Rate jurisdiction
- South Dakota Public Utilities Commission
- State directory
- South Dakota utilities
- Customer classes
- Commercial, Residential
Official website and contact
- Official website
- www.montana-dakota.com
- Customer service phone
- 1-800-638-3278
- Not published
Contact details are shown only where the utility publishes them.
Published state services
South Dakota
Natural gas distribution in South Dakota communities under SDPUC Volume No. 3 gas rate schedules.
Customer classes: Commercial, Residential
Last confirmed: August 27, 2026
State customer informationVerification sources
- Montana-Dakota Utilities Co. — SD Gas Tariff Rate 60 / Rate 70 sheets
Montana-Dakota Utilities · Tariff — Rate 60 Residential Gas Service; Rate 70 Firm General Gas Service (accessed 2026-08-27)
- Montana-Dakota Utilities home
Montana-Dakota Utilities · Official Utility Website — Company identity (accessed 2026-08-27)
- SD PUC — Montana-Dakota Utilities Co. SDPUC Volume No. 3 Table of Contents
SD PUC · State Regulator Inventory — SDPUC tariff index for Montana-Dakota Utilities Co. listing Rate 60 Residential Gas Service and Rate 70 Firm General Gas Service; Docket NG23-014 (accessed 2026-08-27)