More than 1,850 customers called the hotline from its opening on Tuesday, Jan. 7, through Sunday, Jan. 12 regarding Fred Fuller Oil Co.
The company said a combination of extreme weather conditions, a huge uptake in oil and propane demand and an overload and temporary crash of the company phone system led to the problems.
Marc Goldberg, a spokesman for Gov. Maggie Hassan, said it is appropriate for the state to seek repayment from the company for the cost, most of which was overtime for state employees.
The Associated Press left messages seeking comment from the company's attorney, Simon Leeming, on Friday afternoon.