All members voted in favour except the Onchan MHK
The only MHK to vote against allowing Manx Gas to set its own tariffs and remove a price freeze says he did so because it was in the best interests of his constituents.
In Tynwald this week, Onchan MHK Rob Callister was the sole dissenter against the new regulations which come into force on 1 April.
The new rules will also allow the Communication and Regulatory Authority to cap revenue that Manx Gas earns from regulated activities.
A formal process for tariff reviews and adjustments will also be introduced.
Mr Collister, who is also the chair of Manx Utilities, says he couldn't support the move:
Person dies following road traffic collision at Hillberry
Contractors to start installing 20mph signs in Douglas and Onchan
Accessible bus stops rolled out across Bus Vannin network
Road closures in place following incident in Hillberry area