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Australian firms raise gasoil stocks to meet obligation

  • : Oil products
  • 26/02/16

Australian fuel companies have increased their storage levels of gasoil over the past two years (see graph) to comply with Australia's minimum stockholding obligation (MSO).

Fuel suppliers are required to report stocks every Tuesday and Friday prove compliance with the MSO under federal law. Suppliers subject to the MSO can paper trade S-21 tickets with other importers to ensure compliance. An S-21 ticket is a ticket for one litre of gasoil. Stocks can be held in Australia and on water inside Australia's exclusive economic zone.

Weekly MSO reporting applies to 10 firms for gasoil, eight for gasoline and six for jet fuel. Together, these companies represent 99pc of Australia's total refined and imported gasoline, 100pc of kerosene/jet fuel and 98pc of gasoil, based on 2023 volumes used to set the MSO. MSO firms are those which have either imported, refined or handled a combination of these methods for one or more transport fuels for a year, at volumes exceeding 250mn litres for gasoil, 200mn litres for gasoline and 250mn litres for kerosene.

All 10 gasoil-reporting companies met their obligation in the third quarter of 2025, latest data Australian Petroleum Statistics (APS) show. One supplier failed to meet the regulation in the April-June quarter, according to APS.

Gasoil remains the tightest market for MSO compliance and the requirement became more stringent after the mandated gasoil stock levels increased from 1 July 2025 to 32 days of cover for importers and 20 days for refiners Viva Energy and Ampol.

Total stocks held by industry under the MSO in 2024-25 equalled 33 days of consumption for gasoil, 39 days for gasoline and 31 for kerosene, based on typical demand.

Australia's MSO gasoil stocks (mn litres)

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