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.
Three-week road closure for gas main works
Stretch of Ballakermeen Drive shut until 28 September
Public expectations for high street services 'a contradiction'
Political commentator says locals expect services to be efficient but for nothing to change
Info Commissioner partially upholds terminal complaint
Other exemptions applied were handled correctly
MGP organisers ACU respond to accusations of 'hollow promises' following rider's death
Sam Naughton was killed after an incident at Doran's Bend at this year's event