Findings were initially expected this month
A review into the Manx Gas charging structure won't be published until the end of January.
An investigation into its pricing was promised following protests last winter.
It follows calls for scrutiny from Onchan MHK Rob Callister, after the company increased customer's tariffs by 3.5%.
The review was expected to be completed by December, however the Cabinet Office says this is now expected by the end of January.
Mooir Vannin could be first of many
Dr Alex Allinson, who is retiring as Ramsey MHK at this year's general election, gave evidence to the final hearing by the independent panel.
'Significant investment or redevelopment' needed at Ramsey District Cottage Hospital
Manx Care is 'planning a sustainable long-term solution'
Police seeking witnesses to Ballasalla incident
It happened on Thursday (16 July)
Mooragh Park receives 'prestigious' Green Flag Award
Ramsey Commissioners says it reflects 'commitment' to providing a 'high-quality' space