Mobil v State of Vic

The case of *Mobil Oil Australia Ltd v State of Victoria* concerned a dispute between Mobil Oil Australia Ltd and the State of Victoria regarding the validity of certain charges imposed by the State. The matter came before Hayne J in chambers.

The primary legal issue before the Court was whether the charges levied by the State of Victoria under the *Petroleum Products (Substandard and Other Oil) Act 1983* (Vic) were invalid by reason of being a duty of excise within the meaning of s 90 of the *Constitution*. Mobil Oil argued that these charges constituted an excise and therefore could not be imposed by a State.

Hayne J considered the established principles for determining whether a tax is an excise, focusing on whether it is a tax on goods, imposed at some stage in their production or distribution, and whether it is a tax on the goods themselves rather than on the activities of those who deal with them. His Honour analysed the nature of the charges in question, their purpose, and the stage at which they were imposed. The Court applied the reasoning from previous High Court decisions concerning the scope of s 90 of the *Constitution* and the definition of an excise.

The Court found that the charges imposed by the *Petroleum Products (Substandard and Other Oil) Act 1983* (Vic) were not duties of excise within the meaning of s 90 of the *Constitution*. Consequently, the State of Victoria was not prevented by s 90 from levying these charges.