The history of Hancock Prospecting dates from the late 1930s when Hancock and
Peter Wright, a former schoolmate, formed a partnership, named Hanwright. One of the partnership's early ventures was an asbestos mine at , Western Australia. Hanwright and
Rio Tinto reached agreement in the 1960s, where Hanwright secured 2.5 percent share in all iron ore sold from its Pilbara discoveries. In 2011, the company was estimated to earn about A$870 million in revenue per year; based on a 50% share of profits generated at the
Hope Downs mine, operated by Rio Tinto. Hope Downs production levels of per year and at 2011 prices (around
US$140 per tonne) generated over A$2 billion in revenue, and about A$700 million in net cash. In addition, the company received a 1.25% royalty from iron ore sales by
Hamersley Iron (a Rio Tinto subsidiary) which delivered approximately A$170 million a year. Hancock Prospecting exploration activities are done under the Jacaranda Alliance, a joint venture between Hancock, Minerals Australia Pty Ltd, and several former executives of Rio Tinto. Exploration and evaluation work on uranium, molybdenum, lead, zinc, gold, diamonds and petroleum deposits are conducted in Australia, Papua New Guinea, New Zealand and South East Asia. , Hancock Prospecting diversified its interests into the cattle industry, acquiring 67% of
S. Kidman & Co. In 2023, descendants of Peter Wright, via Wright Prospecting, commenced
civil legal action against Hancock Prospecting in the
WA Supreme Court. Wright Prospecting claimed that the agreement between Hancock and Wright included a division of certain Hanwright assets, assigning some to Wright Prospecting and others to Hancock Prospecting. Wright Prospecting sought its half of the partnership's 2.5 percent in royalties — or 1.25 percent of all profits made, likely worth several hundred million dollars. Wright Prospecting also argued that Hope Downs 4, 5 and 6 was a shared Hanwright asset — worth billions of dollars.
Institute of Public Affairs Hancock Prospecting significantly funds the
Institute of Public Affairs (IPA), paying the IPA $2.3 million in financial year 2016 and $2.2 million in financial year 2017, which represents one-third to a half of the IPA's total revenue in those years. These payments were not disclosed in IPA annual reports, and Rinehart's daughter Bianca Hope Hayward submitted in court that the Hancock Prospecting payments were credited to Rinehart in an individual capacity. ==Attitudes towards indigenous peoples==