A recent decision of the Supreme Court of Western Australia in the long running dispute between Gina Rinehart’s Hancock Prospecting and Wright Prospecting provides a timely reminder for Western Australian businesses: historical agreements, particularly in the resources sector, can carry enormous legal and financial consequences decades later.
The judgment, sparring more than 1500 pages, delivered by Justice Jennifer Smith, concerns the lucrative Hope Downs iron ore project in the Pilbara and brings to a head more than 15 years of litigation over rights originating in the 1950s between mining pioneers Lang Hancock and Peter Wright.
The Decision in Brief
The Court found that Wright Prospecting is entitled to a share of royalties from the Hope Downs project, potentially worth hundreds of millions of dollars in past and future payments. Importantly, however, the Court rejected broader claims that Wright Prospecting held ownership interests in the underlying mining tenements or Hancock Prospecting’s share of the project.
The result has been widely described as a “half win, half loss”:
- Win for Wright Prospecting – entitlement to ongoing royalty streams;
- Win for Hancock Prospecting – retention of ownership and control of the assets.
The Court also upheld a smaller royalty entitlement in favour of Don Rhodes, linked to early prospecting activities, further illustrating the layered complexity of historic resource arrangements.
Why This Case Matters
For WA businesses, particularly in resources, agriculture and property development, the decision highlights several enduring legal principles.
- Historical Agreements Can Have Modern Consequences
The dispute arose from arrangements dating back over 70 years. Despite multiple restructures, joint ventures and development phases, the Court was prepared to recognise continuing contractual rights to royalties.
This reinforces a key point: legacy agreements do not simply fade away. If not clearly extinguished, varied or superseded, they may remain enforceable, particularly where they relate to land, tenements or profit-sharing.
- Royalty Rights vs Ownership Rights
A critical distinction in the case was between royalty entitlements and proprietary ownership. The Court was willing to enforce a right to receive a share of economic output (royalties), while rejecting claims to ownership of the underlying assets.
For commercial lawyers and their clients, this distinction is crucial. Royalty arrangements can:
- survive changes in ownership or structure;
- attach to production rather than title; and
- create long-term financial obligations independent of control.
- Joint Ventures Do Not Eliminate Third-Party Rights
The Hope Downs project is operated as a joint venture with a major mining partner Rio Tinto, yet the Court still found both joint venturers liable for royalty payments. This underscores that joint venture structures do not necessarily insulate participants from pre-existing third-party obligations. Due diligence must extend beyond current project documents to historical dealings tied to the tenements themselves.
- Fiduciary and Historical Conduct Still Matters
The judgment involved scrutiny of historical conduct between the original parties, including whether obligations were properly discharged or avoided over time. Even decades later, courts may examine:
- whether parties acted consistently with earlier agreements;
- whether rights were improperly excluded; and
- whether equitable doctrines (such as breach of fiduciary duty) are engaged.
Practical Lessons for Businesses
This decision is not just about mining billionaires, it carries practical implications for a wide range of enterprises:
- Audit legacy agreements: Particularly where land, resources or profit-sharing arrangements are involved.
- Clarify and document variations: Informal understandings or assumptions about “moving on” from old deals are risky.
- Undertake deep due diligence: When acquiring tenements, businesses or joint venture interests, look beyond recent documentation.
- Structure royalties carefully: Understand whether they bind successors and how they interact with financing and development arrangements.
- Plan for disputes early: Long-tail liabilities can surface years later often when projects become profitable.
- Have all agreements in writing: clearly document all agreements in writing and seek legal advice before signing.
Looking Ahead
Given the scale of the financial implications and the complexity of the issues, further appeals or related proceedings are likely.
Regardless of any future developments, the decision stands as one of the most significant recent reminders in Western Australian commercial law: the past is never truly past when it comes to contractual rights over valuable assets.
What this means for you
If your business operates in sectors involving land, resources or long-term commercial arrangements, now is an opportune time to review your contractual position. Rights created decades ago by predecessors, partners or even informal arrangements, may still shape your legal and financial future today.
For advice on your legal position and to conduct a legal audit of your historical legal arrangements you can contact us at www.lynnandbrown.com.au or by calling 9375 3411.
About the Author: This article was authored by Steven Brown, Steven’s legal career covers working with multinational corporations and Australian listed companies to family-owned businesses. This range of experience has equipped Steven with the unique ability to offer tailored legal services that make a significant difference to businesses of all sizes.
Steven enjoys working with entrepreneurs and family enterprises to both protect them and allow them to forward develop their businesses as well as ensure it can flow to the future generations.
