Australia Faces Diesel Price Surge Amid Global Tensions, Government Invests $1.1B in Biofuels
April 7, 2026
The government pledges international collaboration and industry cooperation to safeguard fuel security amid volatile markets, while avoiding comment on external statements and reiterating resolve to reduce conflicts affecting energy supply.
Public interest in biodiesel from cooking oil grows, but experts warn against DIY production and urge adherence to manufacturer recommendations for vehicles.
Social media claims about making biodiesel from cooking oil draw officials’ cautionary responses, underscoring the need to follow professional guidance.
The piece places fuel price context in a broader global picture, noting volatility and efforts to increase ethanol content in fuels.
Diesel prices in Australia rose again after an initial dip, even as wholesale diesel briefly fell and then recovered over the week, while unleaded prices eased thanks to fuel excise relief and GST adjustments.
Energy ministers, including the energy minister, back biofuels development with about A$1.1 billion invested to advance biodiesel from fats and vegetable oils and to explore expanding ethanol in the fuel mix.
Prime Minister and ministers spotlight the A$1.1 billion biofuels program and ongoing discussions about broadening ethanol use in the national fuel supply.
Global crude prices fluctuated, with WTI briefly above US$115 and then holding around US$111 as geopolitical tensions, including Iran-related factors, influence markets.
About 3.4% of service stations were without diesel as of Monday, with notable gaps in New South Wales, Victoria, and Queensland, though the number of stations without fuel declined over the week.
Overall diesel price volatility persists despite petrol tax relief and ongoing government efforts to bolster fuel security.
The government pursues fuel security ahead of April and May, engaging international partners and considering new powers to underwrite fuel and fertiliser purchases.
Prime Minister and ministers press international engagements to secure supply and deploy measures to underpin fuel and fertiliser purchases in the near term.
Summary based on 2 sources
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Sources

The Guardian • Apr 6, 2026
Diesel remains volatile as prices rise again despite Labor’s fuel tax relief