Gas Utilities Directory — utility profile
Washington Gas Light Company
Maryland · Investor-Owned · Major Regulated
Utility overview
- Utility name
- Washington Gas Light Company
- Legal name
- Washington Gas Light Company
- Ownership type
- Investor-Owned
- Utility class
- Major Regulated
- Rate jurisdiction
- Maryland Public Service Commission
- State directory
- Maryland utilities
- Customer classes
- Commercial, Residential
Official website and contact
- Official website
- www.washingtongas.com
- Customer service phone
- 844-927-4427
- Not published
Contact details are shown only where the utility publishes them.
Published state services
Maryland
Maryland counties: Calvert, Charles, Frederick, Montgomery, Prince George’s, St. Mary’s; also serves District of Columbia and Virginia (documented; MD row only this batch).
Customer classes: Commercial, Residential
Last confirmed: August 25, 2026
State customer informationVerification sources
- Maryland tariff
Washington Gas Light Company · Tariff — Rate Schedule No. 1 firm residential sales; Rate Schedule No. 2 firm commercial and industrial sales (accessed 2026-08-25)
- Maryland Tariff Information
Washington Gas · Official Utility Website — Maryland rate schedule index (accessed 2026-08-25)
- Order No. 88944
Maryland PSC · State Regulator Inventory — Names Washington Gas Light Company; natural gas retail sales and delivery in Maryland counties (accessed 2026-08-25)