Background
Peter Wiese's professional life developed in Perth, the capital of Western Australia. The state's economy has long been shaped by mining and energy development, a setting that later became central to his legal practice.
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Peter Wiese
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Peter Wiese is an Australian lawyer based in Perth, Western Australia, whose practice focuses on corporate and commercial law in the energy and resources sector. He studied law at the University of Western Australia, was admitted to the bar in Western Australia in 1974, and has worked as a partner at Robinson Cox and as principal solicitor at Wright Prospecting.
Education
Wiese studied law at the University of Western Australia, where he completed a Bachelor of Laws with honours. The university was founded in 1911 as the first university in Western Australia and enrolled its first students in 1913. Its Faculty of Law was established in 1927 as the institution's fourth faculty, and the UWA Law School is now the fifth-oldest law school in Australia.
The law school began teaching in 1928 with a small first intake, and its curriculum has long emphasised legal reasoning and research alongside practical professional skills. Admission to the bar in Western Australia in 1974 qualified him to practise law in that state.
Career
Wiese was admitted to the bar in Western Australia in 1974. He also worked as a partner of Robinson Cox, a Perth law firm that merged into the larger firm Clayton Utz in 1992.
His practice focuses on corporate and commercial law advice for companies across Australia, particularly in the energy and resources sector, including upstream and downstream oil and gas, electricity, and mining projects. He has advised on the deregulation and privatisation of the electricity market in Western Australia and Victoria, as well as on major asset acquisitions and disposals in the resources and energy sectors.
He is currently principal solicitor at Wright Prospecting, a privately owned Perth company associated with the family of mining entrepreneur Peter Wright, who co-founded Hancock Prospecting with Lang Hancock. Hancock Prospecting was founded in 1955 and is headquartered in Perth, with interests in iron ore, thermal coal, and other minerals. Business News reported that Wright Prospecting had recruited him to guide it through continuing legal disputes with Hancock Prospecting. Those disputes concerned royalties and ownership claims over iron ore tenements in Western Australia's Pilbara region. In April 2026 the Supreme Court of Western Australia found Hancock Prospecting and Rio Tinto jointly liable for royalty payments to Wright Prospecting while dismissing claims to an ownership share in the Hope Downs mines.
