Another factor is natural gas rate increases approved by the state that took effect Nov. 1. They were 25% to 30% for Eversource customers and 11% to 13% for National Grid customers.

The Massachusetts Department of Public Utilities has sent a letter to gas companies directing them to lower gas bills for March and April by 5%.

Massachusetts natural gas utility customers are getting a temporary rate cut after state regulators responded to soaring delivery charges, but many are saying the relief is not enough.