PurposeIn 1950, the Aluminum Company of Canada (Alcan) was given a perpetual water license for a large section of Northern British Columbia, Canada. The benefit to the original owner of the water rights, the Province of British Columbia, was economic and population growth. The purpose of this paper is to follow the contestation over these rights from 1948 to 2016.Design/methodology/approachAn institutional logics perspective was taken to analyze the main actors and how their relative power (dominant versus fringe) changed in the institutional field. Archival data and selected interviews were mapped to institutional logics across three time periods.FindingsIn the inter-temporal setting, many of the actors that were fringe in 1950 became more dominant by 2016. For example, the local indigenous peoples, the Cheslatta Carrier First Nation, were flooded off their land to make way for Alcan’s dam. They ended up as very powerful players in the institutional field. The perpetual rights given to Alcan made it a dominant actor across all time periods, despite changes in the logics of the institutional field.Research limitations/implicationsA single case was studied; other comparative settings should be explored to contrast and compare. The data were primarily archival, supplemented by only three interviews of those related to the case study. This case study is also one where water rights were privatized in perpetuity, which may not be the case in other settings.Practical implicationsCurrent governments and non-governmental organizations (NGOs) should use this case to understand the long-term effects of resource policy decisions.Social implicationsThe building of large dams has been, and continues to be, used worldwide to provide power to create economic growth. Our setting provides insight into the long-term societal outcomes of using water rights in this way.Originality/valueThis is an original use of institutional logics around a natural resource-based institutional field. Using institutional logics in a multi-period setting, focusing on the power relations of the key actors, and how they can be constrained by historical forces, provides a contribution to the literature.