Gas customers look set to see an increase in their bills next autumn.
A spokesman for the Commission for Energy Regulation has said that a 10% rise is likely.
He said there is upward pressure on gas prices and that the exchange rate between the euro and sterling is a significant factor.
Around 93% of the gas used in Ireland comes from the UK.
Bord Gáis is due to make a submission to the commission shortly and the commission is due to publish its consultation paper in July.
Any price increase would come into effect on 1 October.
Although only Bord Gáis tariffs are still set by the regulator, other gas suppliers, such as the ESB and Airtricity, usually track them closely.
