The Prime Minister's efforts to guarantee domestic gas supplies don't address the "elephant in the room" of high power prices, a Federal Government MP has said.

Malcolm Turnbull will meet gas exporters again today, to refine the details of their commitment to meet the expected domestic shortfall over the next two years.

But the Nationals MP for the seat of Mallee, Andrew Broad, said that agreement doesn't go far enough.

"The Prime Minister has been very proactive in this space and he's to be commended, what he's trying to do is shore up supply, but it doesn't appear that there's a lot on price," Mr Broad told the ABC's AM program.

"Everything that we've done on gas so far as a government hasn't tackled the elephant in the room and that is price.

"We must get the price down, if we're going to have businesses wanting to invest here, if you want to have households be able to have the heater on."

Since his first speech to parliament Mr Broad has consistently advocated for a percentage of the gas extracted in Australia to be reserved for domestic use.

"It's been a success in Western Australia for a very long time, supported by the Liberal party, the National party and the Labor party, and I see no reason, when you've got manufacturing in Australia, that it shouldn't be explored and rolled out on the east coast of Australia."

The West Australian policy reserves 15 per cent of a company's total production for local use.

Mr Broad said a similar limit on the east coast would drive prices down by adding an "oversupply" of gas to the domestic market, rather than just encouraging exporters to make gas available at a "world parity price".

Mr Broad, who chairs the House of Representatives Environment and Energy Committee, has also dismissed suggestions that the distribution of GST could be changed to effectively force state governments to lift existing bans on gas exploration.

"I don't think we would be successful, a federal government trying to use the GST as a mechanism to put pressure on state governments, I clearly don't think voters in those states would appreciate that."

He said any state government with a moratorium in place would not be willing to lift it simply to provide more gas for the export market.

"I think the discussion around exploiting more gas out of the current resources becomes more palatable for state governments when they know that gas is going to be used for their own domestic manufacturing and household needs.

"So if you're a Victorian and you say, look, I'll let that gas be developed, if it's going to help my household, it's going to help my job and my industry."