The government anticipated the gas reservation announcement (which was pretty heavily telegraphed) and have made an announcement of their own:

Since coming to office in 2022, the Government has focussed on delivering energy security for Australians.

We have delivered more gas for Australians and imposed stronger powers to require producers to make gas available domestically at affordable prices.

The Government has strengthened the Heads of Agreement with LNG producers to ensure uncontracted gas is offered to Australians first.

We have introduced a mandatory Gas Code of Conduct which delivers legally enforceable domestic gas supply commitments, while putting downward pressure on prices. The Gas Code has secured almost 650 petajoules of gas for Australian homes and businesses.

We have also strengthened the Australian Domestic Gas Security Mechanism – so we can direct gas to be reserved for domestic use if there is a shortfall.