Low direct Hormuz dependency but among the most vulnerable due to minimal government buffer · extended disruption would be disproportionately dangerous
Australia imports over 90% of its refined fuel and crude oil. Approximately 15–20% of those imports come via the Strait of Hormuz, primarily from the UAE, Kuwait, and Saudi Arabia. While the percentage is low compared to Asian neighbors, Australia's critically thin strategic reserves (mostly commercial, minimal government buffer) make any disruption disproportionately dangerous. A prolonged price spike or supply interruption could trigger fuel shortages within weeks.
Singapore is a major refining and trading hub — disruption would affect not just crude but also finished products like diesel, jet fuel, and gasoline.
CRITICAL WEAKNESS — Australia holds only ~60 days of net imports, and most of this is commercial stocks held by refiners and importers. The government's actual strategic reserve is less than 20 days. The IEA requires 90 days; Australia is in breach of its obligations. The government has announced plans to build a sovereign SPR, but construction is years away. A Hormuz closure would see fuel shortages within 4–6 weeks, with dire economic consequences.
Current situation: The US-Iran war has disrupted Gulf shipping, causing oil price spikes and supply uncertainty. For Australia, the direct loss of Hormuz-origin fuel (~15–20% of imports) would be manageable in the short term. However, the global price surge and competition for remaining supplies would leave Australia at the back of the queue — Singapore and Asian refiners would prioritize domestic markets, and Australia's minimal strategic reserves would be exhausted within 6–8 weeks.
In a full blockade, Australia would lose ~150,000 bpd of Gulf-origin fuel. The government would activate the IEA's collective action, but global stocks are limited. Within 4 weeks, commercial stocks would be depleted. Fuel rationing would be imposed — essential services (hospitals, defense, emergency) prioritized. Agriculture and mining would face severe cuts. The government has no SPR to speak of; the only buffer is demand destruction.
Canberra has expedited the purchase of a strategic fuel reserve (the 'Boosting Australia's Fuel Security' package), but facilities won't be operational until 2027. In the crisis, Australia would rely on US and Japanese SPR releases (through IEA), and request emergency shipments from Singapore and South Korea. However, those nations have their own needs. The Australian Defence Force would escort tankers, but the primary solution would be forced demand reduction — potentially including weekend driving bans and industrial shutdowns.
Australia closed its last major refineries (Kurnell, Bulwer Island, Port Stanvac) between 2003–2021, leaving only two refineries — one of which (Lytton) converted to an import terminal. The nation now imports over 90% of refined fuel. The 2024 'Fuel Security Review' warned that Australia has less than 30 days of diesel reserves — the lowest in the OECD. A Hormuz crisis would expose this decades-long neglect.
Australia's reserve coverage is the lowest in the OECD, and most is commercial — not government-controlled. The country is in breach of IEA obligations and dangerously exposed.
The government has announced a A$250 million 'Boosting Australia's Fuel Security' package to build a sovereign SPR (target: 80 days by 2028) and support domestic refining. However, construction timelines are long. Meanwhile, electric vehicle adoption (now 10% of new sales) and biofuel blending offer partial relief, but the heavy transport and mining sectors have no immediate alternatives.
Strategic pivot: Increased diesel imports from the US and Middle East (via Cape route), plus emergency agreements with Singapore and South Korea.