Largest Oil Companies in Australia (2026)

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Australian oil and gas is led by upstream majors Woodside Energy (the country's largest oil-and-gas company), Santos, Origin Energy, Cooper Energy and Karoon Energy, alongside the foreign players ExxonMobil Australia, Chevron Australia (operator of Gorgon and Wheatstone LNG), Shell Australia and Inpex (Ichthys LNG). Downstream refining-and-fuels runs through Ampol (the former Caltex Australia, operator of the Lytton refinery) and Viva Energy (Geelong refinery, Shell brand licensee); the Australian Petroleum Production & Exploration Association (APPEA, now Australian Energy Producers) represents the trade. Buy the list of all 234 active oil companies in Australia (ANZSIC 1701), with email, phone and address, sourced from ASIC and refreshed monthly.

States covered8
Top stateNew South Wales71 (30%)
Most common size1-4145 (62%)
Most common revenue1 to 100.00074 (31%)
21%With email49
55%With phone129
42%With website99
93%With address218
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