Gas Annual Reports Annual reports for natural gas utilities in New Hampshire. For contact information and tariffs for these companies, please visit Regulated Companies Tariff page. Liberty Utilities (EnergyNorth Natural Gas) Corp. 2023 2022 2021 2020 2019 2018 2017 Liberty Utilities – Keene 2017 Northern Utilities (Unitil), Inc. 2023 2022 2021 2020 2019 2018 2017
