Australia exports far more energy than it imports, yet imports supply most of its refined fuel consumption. September's diesel squeeze shows why energy-export strength cannot stand in for evidence of fuel availability or delivered cost.
Observed facts: the export surplus hides a different fuel balance
Australia's energy accounts describe a substantial net exporter, but that headline combines unlike products. The Australian Government's 2026 statistics, released on 25 September with data through 2024–25, show net exports equivalent to about two-thirds of domestic energy production. In that year, Australia exported 88.9% of black-coal energy production, 73.8% of natural-gas production and 95.7% of crude-oil production [1][2]. Those figures establish export strength; they do not measure the availability of road diesel or jet fuel at an Australian terminal.
On the other side of the ledger, imports met 80.8% of Australia's refined-product consumption in 2024–25, only slightly below the previous year's 81.1% record. Domestic refineries also imported about two-thirds of their feedstock [2]. The resulting distinction matters: a country can be a large exporter of coal, gas and crude while depending on overseas refining and shipping for much of the liquid fuel used at home. The 80.8% figure covers refined products together, not diesel alone, and describes a completed financial year rather than today's stock position [2].
Observed facts: September prices show the transmission route
The ACCC's 24 September weekly monitoring report, with observations to 23 September, provides a more immediate view of price pressure. Across Australia's five largest cities, average retail diesel reached 286.8 cents a litre on 23 September, up 18.9 cents, or about 7%, from the previous week. The same day's average retail petrol price was 237.1 cents a litre, up 12.9 cents [3]. These are city averages, not a quote available to every commercial fuel buyer or regional operator.
The ACCC identifies Singapore Gasoil 10 ppm as the international benchmark relevant to Australian diesel prices. Its weekly average was about 164 Australian cents a litre in the week to 23 September, up two cents from the preceding week. The regulator explains that international refined-fuel benchmarks and the Australian dollar influence domestic wholesale prices before retail prices move; retail diesel does not follow the cyclical pattern often seen in petrol [3]. Tax, distribution, contracts and location also matter, so a benchmark movement cannot be converted mechanically into a customer's delivered price.
Observed facts: the squeeze is in refining and product flows
The International Energy Agency's 11 September Oil Market Report described a sharper constraint in products than in crude alone. It estimated that combined net diesel and gasoil exports from Gulf countries and Russia were 1.6 million barrels a day lower in August than in February; those suppliers had represented almost 45% of global seaborne diesel and gasoil trade before the disruption. The IEA also reported global refinery runs in August at 81.4 million barrels a day, 4.2 million below a year earlier [4]. These are IEA assessments and market estimates, not measurements of Australia's contracted imports.
The ACCC adds the Australian connection: Asian refineries supplying much of Australia's imported diesel are largely configured for sour Middle Eastern crude, and have sought alternative feedstock from other regions. It warns that refined diesel has moved differently from crude and petrol because each product has its own supply and demand conditions [3]. Together, the official sources support a narrow conclusion: an apparently adequate crude supply does not automatically translate into sufficient diesel at the right refinery, vessel, terminal and time [3][4].
Oakhampton inference: track delivered fuel as a separate exposure
Oakhampton's inference is that fuel-dependent businesses should treat diesel as its own procurement and continuity variable rather than using Australia's aggregate energy-export position as a proxy for resilience. The useful operating questions are practical: which product specification is required, where does supply enter the domestic network, how much usable inventory covers the delivery interval, and what part of the contract price follows a refined-product benchmark, foreign exchange or transport charge? Those questions arise from the observed import dependence and price transmission; they are not evidence that a particular buyer faces a shortage [2][3].
For a project or freight budget, a scenario range is more defensible than a single oil-price assumption. A sensitivity can separate refined diesel benchmark, exchange rate, excise, inland delivery and volume timing, then state which components are fixed under the actual contract. The ACCC cautions that published terminal-gate prices are indicative wholesale proxies and that fewer transactions than usual may have occurred near those prices during the disruption [3]. An operator should therefore reconcile the proxy with supplier quotations and actual invoices before changing a budget or claiming a pass-through right.
Remaining uncertainty and the next evidence to watch
The evidence does not prove an imminent Australian diesel shortage. The 2024–25 trade series is a structural baseline, while the ACCC's 23 September prices are a short-term observation and the IEA's global flow estimates can change as production, shipping and demand adjust [1][2][3][4]. Regional stock availability, contract allocation and individual supplier capacity cannot be inferred from national import shares or five-city retail averages. Nor does an increase in retail prices alone establish that a buyer has lost physical access to fuel.
The next check is a sequence of observable measures, not a forecast: updated Australian Petroleum Statistics on imports and stocks, successive ACCC weekly reports on refined benchmarks and domestic prices, and later IEA reports on refinery runs and product exports [3][4]. Until those readings settle, claims about how long the squeeze will last, or what price a specific operation will pay, remain uncertain. The defensible conclusion today is that Australia's export abundance and its refined-fuel exposure coexist, and each needs its own evidence when planning operations [2][3].
Sources
- Australian Energy Statistics – 2026 editionDepartment of Climate Change, Energy, the Environment and Water · 25 September 2026
- Energy tradeDepartment of Climate Change, Energy, the Environment and Water
- Weekly fuel price monitoring report - 24 September 2026Australian Competition and Consumer Commission · 24 September 2026
- Oil Market Report - September 2026International Energy Agency · 11 September 2026