Mitsui and Co (Australia) Ltd v Commissioner of Taxation

Mitsui and Co (Australia) Ltd appealed against the Commissioner of Taxation’s decision to disallow certain deductions claimed for depreciating assets under the Income Tax Assessment Act 1997 (Cth). The dispute centred on whether the taxpayer acquired multiple depreciating rights through its acquisition of a partial interest in a production licence granted under the Petroleum (Submerged Lands) Act 1967 (Cth). Specifically, the court had to determine whether the taxpayer had acquired separate and distinct mining, quarrying, or prospecting rights referable to the limbs of s 52 of the Petroleum (Submerged Lands) Act 1967 (Cth) or merely one such right. The taxpayer attempted to apportion the consideration paid for the acquisition of the partial interest among the petroleum fields within the graticular blocks covered by the production licence.

The court reasoned that the scope of the authorisation conferred by a production licence is determined by reference to graticular blocks and not by reference to geological formations or petroleum fields. By attempting to fragment the production licence into different authorisations for each petroleum field, the taxpayer effectively divorced the production licence from its statutory source. The fact that the graticular blocks may contain petroleum fields with different characteristics did not transform the production licence into a composite item or result in it comprising more than one depreciating asset. The court held that the primary judge correctly dismissed the taxpayer’s appeal, finding no error in the Commissioner’s objection decision.

The appeal from the orders of the primary judge was dismissed, and the taxpayer was ordered to pay the Commissioner’s costs of the appeal. The court further noted that the statutory framework, particularly s 52 of the Petroleum (Submerged Lands) Act 1967 (Cth), clearly establishes that a production licence is granted in respect of blocks and not petroleum fields. This statutory context reinforces the court’s conclusion that the production licence constitutes a single depreciating asset rather than multiple assets.