Abstract
This chapter draws on Charles Beitz’s account of natural resource justice to defend a method of justification that can be used to develop the Common Ownership view. This method employs an original position device, familiar from contemporary social contract theory, and the resulting view is therefore termed ‘Contractualist Common Ownership’. This understanding of Common Ownership is motivated by arguing that it is an apt interpretation of Equal Original Claims. Two key objections to this approach are anticipated and addressed. Contractualist Common Ownership is then used to reconsider and reject the principle of equal division. It is argued that instead, the parties would first secure agreement on a basic needs principle. However, it is also argued that this sufficientarian principle would not be accepted in isolation; parties would seek agreement on further principles of justice for the assignment of rights to natural resources, beyond what is required for basic needs.