Key Takeaways
- A major fire erupted at Viva Energy’s Geelong oil refinery late Wednesday night and burned for over 12 hours before being extinguished at 12:04 p.m. Thursday.
- All on‑site workers escaped unharmed, but nearby residents were ordered to shelter indoors and reported hearing explosions from up to five kilometres away.
- The blaze, described by witnesses as resembling “a scene from the Middle East refinery fires,” left the facility looking like a “war zone.”
- Viva Energy’s Geelong plant supplies roughly 10 % of Australia’s fuel, processing up to 120,000 barrels of crude oil per day into petrol, diesel, LPG, jet fuel and other products.
- The fire originated from a faulty mechanical part in the mogas alkylation unit, causing a gas leak that ignited; the incident is still under investigation.
- Despite the damage, the refinery manager reported that production of petrol, diesel and jet fuel continued at “pretty decent rates,” with the affected unit primarily involved in LPG and low‑aromatic gasoline synthesis.
- Experts note that the refinery’s 1950s‑era infrastructure and the high‑temperature, high‑risk nature of oil refining increase susceptibility to such incidents.
- The Ampol‑owned Lytton refinery in Brisbane remains the only other domestic refinery of comparable size, together providing about 20 % of the nation’s fuel needs.
Overview of the Incident
On Wednesday night, just after 11 p.m., an equipment failure triggered a blaze at Viva Energy’s Geelong refinery, one of only two large‑scale oil refineries still operating in Australia. The fire quickly grew, consuming an area estimated at roughly 30 metres by 30 metres within the mogas alkylation plant. Flames and intense heat persisted for more than twelve hours, posing a significant challenge to emergency services. By the time firefighters declared the fire under control at 12:04 p.m. on Thursday, the refinery’s landscape bore the scars of a severe industrial disaster, with wreckage and charred structures visible from several kilometres away.
Timeline and Response
Emergency crews arrived swiftly after the initial alarm, deploying numerous fire trucks, specialist hazmat units, and aerial support. Throughout the night, firefighters battled flare‑ups and a series of smaller explosions that periodically intensified the blaze. Assistant Chief Fire Officer Michael McGuinness noted that the fire evolved from a modest ignition point into a large, inferno‑like event after several detonations. Despite the hazardous conditions, the coordinated effort allowed responders to contain the fire’s spread, protect critical infrastructure, and ensure the safety of on‑site personnel. The prolonged duration underscored both the intensity of the hydrocarbon fire and the effectiveness of the emergency response framework in place.
Impact on Nearby Residents
The refinery sits approximately 500 metres from the nearest residential zone, yet the fire’s effects were felt far beyond that radius. Residents living up to five kilometres away reported hearing loud explosions and feeling ground vibrations, prompting many to describe the scene as reminiscent of overseas refinery fires. Authorities issued a “Watch and Act” advisory, directing locals to remain indoors, keep windows shut, and avoid unnecessary travel until the situation stabilized. While no injuries were reported among the public, the incident caused considerable anxiety, disrupted sleep, and led to temporary inconveniences such as road closures and limited access to local amenities.
Scale of the Refinery and Fuel Supply
Viva Energy’s Geelong facility is a cornerstone of Australia’s downstream oil sector, capable of processing up to 120,000 barrels of crude oil each day. This output translates into substantial volumes of petrol, diesel, liquefied petroleum gas (LPG), jet fuel and other refined products that feed the national market. Together with the Ampol‑owned Lytton refinery in Brisbane, the two plants supply roughly 20 % of Australia’s total fuel consumption, with the remainder met through imports. The Geelong refinery’s contribution of about 10 % underscores its strategic importance to energy security, making any prolonged downtime a matter of national concern.
Technical Details of Oil Refining Process
According to Professor Yuan Chen of the University of Sydney’s School of Chemical and Biomolecular Engineering, oil refining is inherently a high‑temperature, high‑risk operation. Crude oil is first heated in furnaces to temperatures between 350 °C and 400 °C, converting it into vapour. This vapour then enters a distillation column where it is separated into various fractions based on boiling points—producing products ranging from light gases to heavy residues. Subsequent units, such as alkylation and reforming, further modify these fractions to enhance octane ratings or produce specific chemicals like LPG. The process involves numerous pressure vessels, pumps, and piping systems operating under extreme conditions, any failure of which can release flammable hydrocarbons that may ignite upon contact with an ignition source.
Age and Risk Factors
The Geelong refinery’s original construction dates back to the 1950s, meaning much of its core infrastructure has been in service for over seven decades. While ongoing maintenance and upgrades have been performed, older equipment is more susceptible to fatigue, corrosion, and material degradation—factors that can precipitate leaks or ruptures. Professor Chen emphasized that the combination of aging plant components and the demanding operating environment (high temperature, high pressure, and presence of volatile hydrocarbons) raises the baseline probability of incidents. This context helps explain why an equipment fault in the mogas alkylation unit could rapidly escalate into a major fire.
Cause and Investigation
Viva Energy preliminarily attributed the fire to a faulty mechanical component within the mogas alkylation plant, which precipitated a gas leak. The escaped hydrocarbon vapour subsequently encountered an ignition source—likely a hot surface or spark—resulting in the initial flame that triggered subsequent explosions. While the company has released this hypothesis, a formal investigation is ongoing, involving regulatory bodies such as WorkSafe Victoria and independent forensic experts. Investigators will examine maintenance records, inspection reports, and the specific failure mode of the component to determine whether lapses in procedure, design flaws, or external contributors played a role.
Operational Status After Fire
Refinery manager Bill Patterson sought to reassure stakeholders by stating that, despite the damage to the alkylation unit, the facility continued to produce petrol, diesel and jet fuel at “pretty decent rates.” He clarified that the affected section primarily supported LPG production and the synthesis of low‑aromatic gasoline, meaning that the core fuel streams remained largely operational. Nonetheless, the loss of the alkylation unit reduces the refinery’s flexibility to upgrade gasoline quality and produce certain LPG volumes, which may necessitate short‑term adjustments in product slate or increased reliance on imports. Patterson emphasized that Viva Energy is prioritizing repairs and safety reviews to restore full capacity as swiftly as practicable.
Conclusions and Outlook
The Geelong refinery fire serves as a stark reminder of the inherent hazards present in large‑scale hydrocarbon processing facilities, especially those with aging infrastructure. While the swift evacuation and absence of casualties reflect effective emergency planning, the prolonged blaze and visible devastation highlight the need for rigorous maintenance regimes, modern safety‑system upgrades, and robust risk‑assessment protocols. As the investigation proceeds, stakeholders—including regulators, the local community, and energy consumers—will watch closely for findings that could shape future safety standards across Australia’s downstream oil sector. In the interim, the continued operation of both domestic refineries will remain vital to mitigating fuel supply volatility, but the incident underscores that reliance on a limited number of ageing plants carries significant operational risk. Ensuring the resilience and safety of these assets will be essential for maintaining Australia’s energy security in the years to come.