Current natural gas tariffs and delivery rates
Please follow the links below to each Company's website with currently effective tariffs for distribution service:
- Berkshire Gas Company
- Eversource Gas Company of Massachusetts (formerly Bay State Gas Company d/b/a Columbia Gas of Massachusetts)
- On October 7, 2020, the Department approved a Settlement Agreement authorizing the sale of Bay State Gas to Eversource Energy. Eversource Energy/Bay State Gas Company Merger, D.P.U. 20‑59 (October 7, 2020). The sale closed on October 9, 2020. The name for Bay State Gas/Columbia Gas of Massachusetts is now Eversource Gas Company of Massachusetts.
- Fitchburg Gas and Electric Light Company d/b/a Unitil
- Liberty Utilities
- On October 13, 2020, the Department approved the acquisition of Blackstone Gas Company by Liberty Utilities. Petition of Liberty Utilities for approval by the Department of Public Utilities, pursuant to G.L. c. 164, § 96, of the acquisition of Blackstone Gas Company, D.P.U. 20-03, at n.5 (October 13, 2020). The acquisition closed on December 31, 2020. The name for Blackstone Gas Company is now Liberty Utilities.
- National Grid
- NSTAR Gas Company
Historic natural gas tariffs for distribution service
If you are seeking a historic natural gas tariff that is not on your natural gas company's website you can obtain the information by submitting a public records request with the DPU.
Natural gas terms and conditions for distribution service
- Berkshire Gas Company
- Tap or click 'Distribution Service Terms and Conditions’
- Eversource Gas Company of Massachusetts
- Fitchburg Gas & Electric Light Company/Unitil
- Liberty Utilities
- National Grid
- Tap or click 'Distribution Service Terms and Conditions’
- NSTAR Gas Company
- Tap or click 'Terms and Conditions Tariff'