Why more gas supply won’t reduce gas prices | RenewEconomy

Why more gas supply won’t reduce gas prices

Most of the gas that is ‘cheap’ to extract has been or is being extracted, so ensuring more supply won’t bring the price of gas down.



Since the mining of gas in the Bass Strait 50 years ago, Australia has had abundant supply of gas. The gas was used to provide heating and hot water to households and businesses, produce electricity and be used in industrial processes.

As new gas reserves were found, and new fracking technology adopted, more gas supply became available, and the Gladstone LNG export terminal was developed so the gas could be sold internationally.

As the Gladstone terminal can export such large amounts of gas, it is a huge change to our market. As a gas demand, Gladstone takes in more than double the amount of the total historical east coast demand for gas. This is shown the in the graph below:

Source: AEMO and Melbourne University
Source: AEMO and Melbourne University

As gas can be sold under long term contracts to overseas buyers for around $11 per Gigajoule (GJ), and it costs $3 per GJ to process our domestic methane into Liquefied Natural Gas at Gladstone, this sees ‘net back’ price of $8 per GJ value for gas sold from Australia to be exported via the LNG export facility.

Historically we had paid $4 per GJ domestically, so this sees a doubling of the wholesale price of gas locally to $8 per GJ.

As pointed out by Clarke (RIP) and Dawes, we no longer have an energy system, we have an energy market. The price is not set by the costs; it is set by supply and demand.

In economic terms, and increase in demand sees an increased price. This is shown by a typical Microeconomics 101 supply and demand graph below:


“P1” shows the original “Price 1” of $4 per GJ. The increase in demand shifts the demand for gas due to the Gladstone LNG facility to the right, therefore price increases to “Price 2” of $8 per GJ.

Many of us in the industry have seen this coming for a while, but now the increased prices are starting to see large consequences. So, we are scrambling for solutions, to save our economy and industry. An obvious one is to produce more gas. In economic terms, increasing supply should bring down prices, as shown in a graph from Microeconomics 101:


The graph above shows that an increase in supply (more gas mining) will reduce the price from “Price 2” of $8 per GJ back down to a lower price of “Price 3”. Microeconomic theory relies on a 100% free market, where the market can respond to price signals in an unrestrained manner.

There are few absolute free markets in Australia or globally, and certainly the Australian East Coast gas market is not one of them. Gas supply is not simply a tap that can be turned up to meet demand. It is restrained by availability of resources, capital costs and time to set up new mines, pipeline infrastructure, industry capability, land rights, social license and many other factors.

But the biggest reasons why the market can’t simply turn up the tap for gas supply are the: scale of the increased demand; and the motivations of the gas suppliers/miners.

The Gladstone LNG facility increases the required gas supply from around 700PJ per annum to nearly 2,000PJ per annum. If it was a 10% increase, market would have likely responded accordingly and microeconomic theory would work.

But a near 200% increase in supply is an increase in investment and resources that cannot be done in a short period, even a few years. Prospecting and investigating new gas resources take time; making investment decisions and building new mines can take even longer.

Secondly, if our gas supply grows and meets this increased supply requirement, there is little to no incentive to keep increasing supply to a point of “oversupply” the price comes down. Even suppliers sitting on resources read to be tapped, are better off withholding supply to maintain new price of $8 per GJ, rather than mining to the point the price comes down.

This is also seen in the property market where developers “land bank” and withhold supply to maintain prices, rather than build-build-build to the point new apartment and home prices come down. For gas suppliers, why sell at $6 per GJ today when you can sell at $8 per GJ tomorrow?

To make matters worse, most of the gas that is ‘cheap’ to extract has been or is being extracted. As this chart shows, increasing supply will see more expensive-to-extract gas be mined, where the supply gas is over $8 per GJ before costs of transport up to Gladstone.

Source: Melbourne University

Unfortunately, without severe government intervention, high gas prices are here to stay. More supply will only ensure export demand is met, reduce short term price spikes and possibly bring back some retail competition for customers, but it won’t bring the price down.

And in recent research it is shown that the ‘gas crisis’ and ‘gas shortages’ are unlikely to materialize, even in current market settings.

For large gas users whose businesses are exposed to the increased demand, as well as households, the best bet is investing in efficiency and switching to electricity as much as possible. For our electricity system, we need more (renewable) generation built asap, to transition our gas from quite constant generation to just filling the gaps.

While the ‘crisis’ may be overblown, the price rise is certainly is a shock to our industry and economy. It is important to remember that while the price may have gone up, the costs to mine and supply have not. So this is a boon for gas suppliers. And calls from these suppliers to open up more reserves to bring the price back down are unfounded.


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  1. ben 3 years ago

    Very succinct explanation. The industry were well aware of this prior to the Gladstone developments, and in fact this was a major driver as it would allow the more contingent reserves to be developed. They didn’t factor in the cost of oil crashing though, and many of the developments were planned and implemented while oil was around $100 / barrel.

  2. Tim Forcey 3 years ago

    AEMO CEO on ABC Lateline Business describing recent reports of gas shortfalls.


  3. Askgerbil Now 3 years ago

    Even the rapidly escalating price of natural gas has a silver lining, if not two.
    As the article notes, the high price of natural gas encourages changing to new energy appliances and improving energy efficiency.
    A second benefit is for the biogas industry. Councils and some rural industries were already finding biogas a profitable option. Every natural gas price rise makes this option an even better investment, encouraging more industries to make the change.
    Biogas technology is also improving, making the switch an attractive option even if natural gas prices weren’t continually rising: http://blog.gerbilnow.com/2017/05/renewable-natural-gas.html

    • Jonathan Prendergast 3 years ago

      Agree, It would be great to see the biogas industry grow here. With the added advantage of emissions and pollutants kept from our soils, waterways and airs due to using waste products rather than having to dispose of them. I once saw a stat suggestion 37% of Australia’s electricity could come from waste products via bioenergy.

  4. Brunel 3 years ago

    Thank you! A tremendously lucid explanation of the situation and a great graph to boot!

    Just wondering when the Gladstone LNG facility first started filling up export ships?

    • Jonathan Prendergast 3 years ago

      It was really hard to tell. As there were a couple of press releases early last year, maybe even the year before, with photos showing ships leaving. But it didn’t seem to take hold until May last year and prices rose.

  5. Marathon-Youth 3 years ago

    Applying cost factors to Alternative Energy gas is still cheaper and the added expense for Alternative energy does not justify it.

    • solarguy 3 years ago

      Fossil fuel lobbyist aren’t welcome. We all know that solar, wind and storage is way cheaper than GAS & COAL. So stop wasting your time.

    • Joe 3 years ago

      Marathon my man, you need to keep running for a better argument. I think this is what we call Fake News. You are just wrong, wrong, wrong.

  6. Tom 3 years ago

    Hi Jonathan,

    Great article. Can you tell me what the source of the Melbourne University graphic there is? I’d like to learn more about that one.


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