Danny Alexander, the Chief Secretary to the Treasury, announced in the Commons that he would be making representations in Brussels to extend the current island fuel duty reduction to remote areas within the UK.
"Yes, I will be making the case to the European Commission to extend the local discount, from islands at the moment, to the most remote mainland areas," Mr Alexander said.
"At the moment we are working to build a case to give local governments local support to get the evidence needed to make that case."
Mr Alexander's announcement came in an answer during Treasury Questions.
The Liberal Democrat's Alan Reid, representing Argyll & Bute, said he welcomed the Government's "decision to freeze fuel duty and also the decision to introduce the island fuel duty discount", saying it had allowed businesses on the two islands he represents to "benefit greatly".
Mr Reid asked: "Will the Chief Secretary make the case to Europe to extend the fuel discount to remote parts of the mainland such as the Kintyre peninsula?"
"This coalition Government is on the side of small firms," Mr Alexander said.