Gas prices across Australia have jumped, and in some places, the gap is widening.

The price of a litre of regular gas has dropped from $2.50 to $1.45, and the price of diesel has risen from $1 to $2, the Australian Bureau of Statistics said on Friday.

A litre is about 6.5 litres, or 2.8 litres, according to the Australian Gas and Energy Commission.

This is the first time since 2009 that gas has been cheaper in NSW than in Queensland, and it comes as the state’s power and gas market is in turmoil.

Australia’s gas price index rose to a seven-month high of 3.14 in the week to July 15, according the ANZ.

It was the first week in the year to see a six-month gain, and this is the longest-lasting rise in the index since August 2018.

Gas prices in Sydney have been the lowest since February 2018, but this week they rose to $4.96 a litres.

“It’s certainly the beginning of the end for the gas price boom in Sydney,” the ANA said.

Across the country, the price index increased to 3.1 in Victoria and 2.9 in New South Wales, it said.

The price index has now increased in nine of the 12 states and territories it tracks, it added.

Electricity prices in NSW, the biggest energy consumer, have been among the most volatile in the country.

In Victoria, electricity prices have been on a slide in recent weeks, hitting their lowest level since June, and were expected to fall further on Thursday.

In Queensland, gas prices have also been falling.

Despite being one of the most expensive states in Australia, Queensland has seen the price increase the most this year.

Energy retailer ANZ said electricity prices in the state are now $1 a kilowatt hour.

An increasing number of people are using their electricity to cook, or heat up, their homes.

ANZ said it has seen demand from people cooking more than double over the past year, from 1.6 million households to 6.1 million households.